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AIR TO WATER HEAT PUMP TECHNICAL MANUAL

1. 162 EP2 Dji 1 1 SF1 A FA2 1 BT30 FD1 XL8 BT24 XL9 EBI List of components Pipe connections XL1 Climate system supply XL2 Climate system return XL3 Cold water 4 water XL8 Docking XL9 Docking out XL13 Liquid line refrigerant XL14 Gas line refrigerant XL15 Connection safety valve manometer Valves etc EP2 Heat exchanger GP1 Circulation pump climate system variable flow Strainer water 0 8mm OMI Valve draining filling climate system QM20 Venting valve QM30 Reversing valve hot water 2 way 35sec QM31 Reversing valve climate system 2 way 35sec QN11 Mixing valve 3 way ball type 35sec Electrical components X1 X2 X3 SF1 FAI FA2 1 AA4 AA6 AA21 AA22 AA23 QAI QA2 QA3 10 Terminal block incoming electric power Terminal block outgoing electricity and communication Terminal block external addition Switch Miniature circuit breaker control system Miniature circuit breaker outdoor unit Immersion heater Display unit Relay card
2. Flow B AB 094 B AB 10096 Flow B A 100 B A 0 A AB 100 A AB 0 150 Technical data 2 way valve V415B Connection G1 ext Length 74 mm KVS value 8 6 Dimension 2 way valve kamas I 4 Technical data 3 way valve V515B Connection G1 ext Length 74 mm KVS value 4 5 Dimension 3 way valve Components HM270V Technical specifications actuator LR230A 002 LI Voltage AC 100 240 V Frequency 50 60 Hz Output 1 5 W Electrical connections 3 x 0 75 mm Run time 35s 90 Dimension actuator 25 103 1 z Se 134 151 Components HM270V Particle filter HQ1 Mesh size Connection Length KVS value Safety valve FL2 0 8 mm Connection inlet G1 2 int GI ext Connection outlet G3 4 int 118 mm Opening pressure 2 5 bar 8 6 Summary Component Symbol Part no Circulation pump GPI MCD291A124 Shuttle valve 2 way QM30 QM31 MCD291A135 Shuttle valve 3 way ONII MCD291A140 Actuator to shuttle valve for QN11 MCD291A128 Pressure sensor BP4 MCD291A122 Wiring to pressure sensor for BP4 MCD291A139 Heat exchanger EP2 MCD291A125 Drying filter HS1 MCD291A145 Te
3. poso o SgunvoH guneoH GINO 0 INO TINO E Soc IOWA WO RAPA UHS jeg junus BS ed Josso1duio uonoun Surjooo IAA uny Hound 165 opis yun epis y Buipioooe 10jenioy Service Operation control function by the indoor unit controller Mode transition in Auto AutoC mode Change over of Heating Cooling Hot water operation is controlled by detection with outdoor air temperature sensor 1 of the indoor unit Threshold value depends on setting on Menu 8 2 3 8 2 5 Menu 8 2 3 Stop temp heating If outdoor air temperature is below setting value on Menu 8 2 3 8 2 5 heating mode is chosen If outdoor air temperature is above setting value on Menu 8 2 3 it switches to hot water mode Default of setting value is 17 C Menu 8 2 4 Start temp cooling in case of AutoC mode If outdoor air temperature is above setting value on Menu 8 2 4 cooling mode is chosen If outdoor air temperature is below setting value on Menu 8 2 4 8 2 5 it switches to hot water mode Default of setting value is 25 C Menu 8 2 5 Hysteresis Default of setting value is 1k Heating Hot Water Cooling AutoC mode only Threshold valu
4. Function Menu No Default value Set value Check Remarks Heating curve 2 1 2 9 Offset heatin Knob 0 Offset value can be set by the knob in the control panel Value can be 2 1 1 checked in Menu 2 1 1 Min supply heating 2 1 4 25 C Adjust the min max supply temperature according to the required Max supply heating 2 3 55 C 26 feeding temperature of the emitter in the system Adjust the circulation pump speed setting according to Setting Circ pump speed heat 2 1 5 100 __ system flow heating Allow add heat 8 2 1 Heat um Setting whether the electric heater is used for heating Period time 8 5 1 60min min These settings decide the operation period of hot water and heating when both demand comes up at the same time Period time defines a cycle time of hot water and heating operation and Max time for HW defines the maximum hot water operation time of the period time Max time for HW 8 5 2 40min JJ min 3 Room sensor settings Function Menu No Default value Set value Check Remarks Room unit 9 3 5 Off On In case these menu is not shown on the display set the Menu 8 1 1 to Room sensor type 9 3 6 Off RGIO S Heating system 62 Off System This which system the adjustment by the room sensor 4 Hot water settings Function Menu Default value Set value
5. If an error code other than those listed above is indicated refer to the wiring diagram of the outdoor unit and the indoor unit 5 The state of the electronic expansion valve The following table illustrates the steady states of the electronic expansion valve Vibo rad tad When the unit comes to a normal stop When the unit comes to an abnormal stop dps ace core During a cooling operation During a heating operation During a cooling operation During a heating operation swa Valve for a cooling operation Complete shut position Complete shut position Full open position Full open position Full open position UHHH 7555 Valve for a heating operation Full open position Full open position Complete shut position Full open position Full open position All set to OFF for shipment 6 Heed the following on the first operation after turning on the power supply This outdoor unit may start in the standby mode waiting for a compressor startup which can continue up to 30 minutes to prevent the oil level in the compressor from lowering on the first operation after turning on the circuit breaker If that is the case do not suspect a unit failure Indoor unit installation General information Transport and storage HM270V can be transported vertically and must be stored vertically and in dry conditions Supplied components Current sensor 3 phase Safe
6. Outdoor heat exchanger temperature C Tho R Defrost operation start temperature for water system D MS G ES eS 20 LLL gt ert Defrost operation start 1 5 temperature zone Suction suturated temperature SST e e Service Operation control function by the outdoor unit controller b Defrosting conditions B i If the previous defrosting was ended compulsorily due to the time out of defrosting operation period and cumulative compressor operation time after the end of defrosting has elapsed 30 minutes and operation mode is kept heating After 5 minutes from the compressor ON After 5 minutes from the start of outdoor fan 2 Defrosting end conditions When any of following conditions is satisfied the defrosting operation is ended a When it has elapsed 8 minutes and 20 seconds after the start of defrosting b When the outdoor heat exchanger temperatures Tho R1 Tho R2 whichever the lower becomes 12 C or higher continuously for 10 seconds 3 Switching of defrosting control with SW3 1 a Ifthe dip switch SW3 1 on the outdoor control PCB is turned ON it makes earlier to enter the defrosting operation Us
7. lt 4 at every Iminute 5 rol valve Retention 5 t B C t A A 24 s0 70 30 90 100 120 130 Compressor speed frequency rps Cooling Heating Control Value Reset value Control Value Reset value A B A B Secondary Fig C Fig C Fig C Fig C current side Power transistor temperature control This control monitors the power transistor temperature TIP from the start operation of compressor and when the following condition is established compressor speed frequency is controlled Reduce compressor speed at every 1 minute Retention 77 80 Power transistor temperature Anomalous power transistor current a If the current value of power transistor exceeds the setting value the compressor stops in order to prevent from overcurrent of inverter b When the current value of power transistor exceeds the specified value and compressor stops 4 times within 30 minutes Inverter error is displayed and E42 is recorded in the Error Log And it enters the anomalous stop mode Anomalous inverter PCB If the power transistor detects any anomaly for 15 minutes including the time of compressor stopping Inverter error is displayed and E51 is recorded in the Erro Log and it enters the anomalous stop mode Anti freeze control by the compressor frequency control It depends on the command from indoor unit Refrigerant amount shortage protection Un
8. 165 Technical data Dimensions Outdoor unit V V LJ LJ 40 YS S Liquid pipe 100 Gas pipe H Liquid pipe Hydrolutioi fm gt Cable gland 1 a dw FE Opening for pipe and 55 23 Opening for pipe and wiring n 50 15 wiring SSE s p 27 50 970 190 580 200 60 60 60 115 2 also 4 i 2 e e lt oo Opening for pipe and wiring i miu RIS 262 388 Drain hole 020 x 3 4 Cable gland pest Sas el Opening for 40 pipe and wiring 15 50 166 Technical data Technical specifications Technical specifications Performance HM system 1x230V 3 x 400 V Condition 1 9 0 3 5 12 0 kW Heating capacity Condition 2 9 2 3 5 10 5 kW 5 Condition 1 8 0 3 0 9 0 kW Cooling capacity Condition 2 11 0 3 3 12 0 kW Condition 1 2 50 kW Heating power consumption Condition 2 2 07 kW Conditi
9. M30 Closed M31 Open N11 Open AB Q Q Q Cooling mode Q Q Q Installation requirements See page 69 NOTE Low supply temperature setting may cause condensation on the floor Fan convectors heating and cooling Heating QM30 Closed QM31 Open Active below balance point A QM30 Open QM31 Closed Open Cooling QM30 Closed QM31 Open QNI1 Open AB 205 valve 63Hl High pressure switch CM Compressor motor CT Current sensor EEV C Expansion valve cooling EEV H Expansion valve heating FMol Fanmotor LPT Low pressure sensor Tho A Temperature sensor outdoor air Temperature sensor hot gas Temperature sensor heat exchanger out Temperature sensor heat exchanger in Temperature sensor suction gas Tho D Tho R1 Tho R2 Tho S cin Outdoor unit Tho S Tho D Pumpcopocity GP1 l s 016 at 50 kPa 0 28 ot 42 kPa 0 39 ot 27 kPa 05 ot 10 kPo Systemrequirenent CP1 Systemvolume gt SOL Non restricted flow See technical data for more info Ref Pipe R410a 5 8 3 8 Insulated max 12m Flare connections Connections on top AUI Powersupply 5x2 Smm2 Fuse 16A Connection on top Alt 2 Powersupply 3x10mm2 Fuse 50 Connection on top 5x2 Smm2 Supply amp Communicetion Connection on top Def Cool
10. 180 160 140 120 100 N Temperature thermistor resistanc oo 0 20 40 60 80 100 120 140 160 Temperature Technical data Temperature sensor Tho S Tho R1 Tho R2 5 2 15 5 10 5 T 5 0 20 40 60 80 100 Temperature Tho A kQ 35 G E 30 i125 g o 20 5 15 10 amp BEN 5 E 0 0 10 20 30 40 50 C Temperature Data for sensor in HM270V Temperature C Resistance Voltage V 40 102 35 4 78 35 73 51 4 70 30 53 44 4 60 25 39 29 4 47 20 29 20 4 31 15 21 93 4 12 10 16 62 3 90 5 12 71 3 65 0 9 81 3 38 7 62 3 09 10 5 97 2 80 15 4 71 2 50 20 3 75 2 22 25 3 00 1 95 30 2 42 1 70 35 1 96 1 47 40 1 60 1 27 45 1 31 1 09 50 1 08 0 94 60 0 746 0 70 70 0 525 0 51 161 Technical data Component positions Component positions Indoor unit Component image UB2 EN es
11. A tes he Nee ee te lec ene ee ot Menu 9 2 1 400 Change DM value to Menu 9 2 1 plus Change DM value to 1 forcibly to DM value 1 forcibly stop the outdoor unit immediately After confirming max request speed of compressor shift to combined mode Service Operation control function by the indoor unit controller Protection control Current protection 1 Maximum current limit control for the outdoor unit by indoor unit control When the operation current of the outdoor unit comes close to the limit request compressor speed is retained in order to keep the current If the current exceeds the threshold set in Menu 9 1 10 request compressor speed is reduced 2 Maximum current limit control for electric heater or other heat source This function is available for 3phase connection only If the current on L1 or L2 exceeds the limit heater output is reduced once every 5 seconds until the current drops to the normal level If the current on L3 exceeds the limit compressor speed is reduced by 6rps every 30 seconds until the current drops to the normal level Freeze protection of water heat exchanger This function can be activated on Menu 9 3 17 1 In cooling mode Compressor speed is kept when the low pressure BP4 reaches 7 5bar and stopped when it reaches 6 5bar for 20 seconds Operation is automatically restarted when it reaches 8 3bar and the supply water temperature becomes 14 C or higher but it will permanen
12. Heoting Def Cool gt Cooling Heo ting EP21 QN11 EP21 GP10 QEP21 BT2 PKH K 15 BZN 2 45 F EP21 BT3 MAM BT19 Indoor unit The heat pump prioritises hot water charging The compressor output is adjusted according to the outdoor temperature The circulation pump varies the flow to maintain a high charge temperature V FAS Expansion vessel min 14L not included Optional 1 Optional 4 Optional 6 Room sensor HW parts Flow relief valve z 6 HW FQ Optional 7 Extra system pump GP10 EP2I BT2 Temperature sensor supply 2 EP2I BT3 Temperature sensor return 2 a Cani EP21 GP10 Circulation pump system 2 EP21 QN11 Mixing valve system2 3 way ball type 35sec QNI2 Shuttle valve for heating cooling a BP4 High pressure sensor 0 4 6MPa BPS Pressure gauge 0 4 Bar Temperature sensor outdoor air external enclosed BT2 Temperature sensor supply BT3 Temperature sensor heat exch in Twin BT6 Temperature sensor tank water BTI2 Temperature sensor heat exch out Twout J 15 Temperature sensor liquid pipe Thi L 19 Temperature sensor immersion heater BT24 Temperature sensor external heat source
13. When the water temperature in tank is decreased below setting temperature 100 of hot water from water heat exchanger goes to tank Take note that water flow going in out tank is different from combined mode 7 Water pump controls its speed by watching temperature with Laa BT12 in order to adjust hot water volume to be returned DC motor pump can control variable speed Counterflow in water heat exchanger EP2 QM30 open Electric heater is not energized Cooling operation mode 10096 of cold water from water heat exchanger goes to radiator fan coil etc Heating Water pump runs at constant speed set at commissioning When the hot water demand occurs Electric heater is permitted Electric heater is energized in Electric heater is prohibited Outdoor unit is switched UY to Hot water mode Parallel flow in water heat exchanger EP2 Electric heater Depends on the setting System description General General Installation requirements Max pressure climate system 0 25 MPa 2 5 Bar Max temperature climate system 65 Max temperature in HM270V 65 Max temperature from external heat source 65 Max supply temperature with compressor at outdoor temp 15 58 C Min supply temperature cooling 76 Max supply temp cooling 25 Min volume climate system during heating cooling 50 0 Min volume
14. BT30 Thermostat standby mode 35 45 C adjustable pred Expansion vessel CPI Buffer vessel CW Sanitary cold water inlet Immersion heater 9kW 3 EP2 Heat exchanger FDI Temperature limiter 98T ELI Safety valve HW FL2 Safety valve tank 2 5 Bar FQI Mixing valve HW EBL Circulation pump climate system variable flow FDI 8730 GP10 Circulation pump external 1 Strainer water 0 8mm2 HSI Filter dryer refrigerant bi flow 083 HW Sanitary hot water outlet MH RGI0 Room sensor MH RG10 accessory QM30 Reversing valve hot water 2 way 35sec QM31 Reversing valve climate system 2 way 35sec Mixing valve 3 way ball type 35 Heating mode QM30 Closed QM31 Open QN11 Active during balance point A When the water heater is full the valves QM30 and QM31 switch to the heating system The heat pump is then controlled by a calculated set point value on the flow line The compressor varies the output according to the demand The circulation pump runs at a fixed set speed Extra shunt EP21 QN11 lowers the temperature on system 2 according to settings in HM270V If the compressor does not manage the entire heat demand the electric heater is activated if it is allowed by setting and the heat shunted out on the flow line During cooling the valve QN12 switches to the cooling system The heat pump is then controlled by a calculated set point value on the flow line The compressor varies the o
15. 1044003 peads E VV 159 Technical data Electrical circuit diagram FDCW 100VNX POWER SOURCE 1 2307 TO INDOOR UNIT TB x2 gt id F 30A F 8A E m WH T 5 1d NOISE FILTER PWB3 2 Llo No E 3 F A TB is g SMI SM2 icd M M DM du e a a 8 age ej s g 8 E 6 4 3 2 1 6 4 3 2 1 Pl NI CNW CNW CNEEVI BLT OR WH RD WH PWB2 INVERTER PWBI CNI4 CNI3 WH IPM P2 N2 P N2 PN 2a 52 1 52x3 A A g m 1234 BL WH LEDI LED2 5173 ESS al i L n A F MODULE n wit ZR 11 12 NA 4 CNF CNR CNS CNH CNTH CNIP CNPS CNB BK WH RD BR WH Y RD RD bal 55 ga me ds 58 EE L i i te te te te e te IDH 20s LPT Optional 63 1 Tho R1 Tho D Tho S Tho A Tho IPM Th
16. When the low pressure is greater than 8 3 bar or condenser out is greater than 14 degrees 73 Freeze prot When the outdoor temperature drops below 0 C and the operating mode does not permit heating When the outdoor temperature rises above 1 C 75 Current limit Too high current output from the house When the current output decreases Temperature limiter alarm The following alarm blocks both FDCW100VNX and electric heater Alarm Alarm text on the Description May be due to no display 3 TB alarm Temperature limiter in HM270V has tripped The temperature limiter has tripped during transportation High temperature in HM270V Blown circuit fuse Tripped miniature circuit breaker Also see the troubleshooting guide on page 108 HM270V alarm The following alarms stop the operation of HM270V Electric heater is activated at min permitted supply temperature Alarm Alarm text on the no idisplay Description May be due to 4 OU power failure No voltage to the outdoor unit from HM270V Blown circuit fuse Tripped miniature circuit breaker Also see the troubleshooting guide on page 109 Occurs if alarm 71 occurs 3 times with in an hour 5 Low condenser out Too low temperature out from the condenser Low temperature during cooling Occurs if alarm 70 occurs 3 times within an hour Low flow during cooling Also see the troubleshooting guide on page 110
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18. 9 Remove the gasket Gasket 8 Disconnect the compressor wi ring U red V white and W blue 140 Service Component replacement Compressor CM 10 Cut off the two straps and pull out the sensor Tho D 11 Cut off the two straps and dis connect the contactors as illustra ted CNFANI 2 straps 12 Disconnect the contacts asillus trated 13 Unscrew the ground cable Mi P t RoHS prs Screw Strap CNB CNTH CNPS 141 Service Component replacement Compressor CM 14 Remove the four screws 15 Remove the control unit 2 screws 16 Remove the compressor s insu lation 17 Unscrew the ground cable 19 Remove the bolts holding the compressor 18 Remove the compress or heater Insulation upper Insulation lower Bolt 3 bolts Heater 142 Service Component replacement Compressor CM 20 Disconnect the pipes for sucti on gas and hotgas 21 Remove the compressor Pipe S suction Pipe S hot gas gas Control board PWB1 1 Remove the screw 2 Cut offthe two straps 143 Service Component replacement Control board PWB1 3 Remove all contacts CNEEV2 CNEEVI CNB CNTH CNIP CNPS CNFANI 4 Remove the six supports 5 Remove
19. In all Extra hot water functions the temperature of the hot water increases temporarily The temperature is first increased to an adjustable level by the compressor Menu 1 5 and then the electric heater is energized until the water temperature reaches the stop temperature Menu 1 4 Temporary Extra hot water is activated manually whilst time based extra hot water is activated using the settings made in the control computer When m A appears above the icon temporary extra hot water is active m appears above the 4 icon time based extra hot water is active NOTE Extra hot water usually means that the electric heater is activated regardless of Allow add heat setting menu 8 2 1 and therefore increases the electrical consumption Extra hot water can be activated in three different Ways 1 Periodic time based extra hot water Interval between extra hot water operation is selected in Menu 1 7 Menu 1 8 shows when the next extra hot water operation is due The increased temperature is maintained by the electric heater for one hour 2 Schedule time based extra hot water The start and stop times for the day of the week when the extra hot water operation is required are set in the sub menus to Menu 7 4 0 The increased temperature is maintained by the electric heater for the selected period 3 Temporary extra hot water Extra hot water operation starts when Extra hot w
20. Use an overflow valve if system flow cannot be guaranteed Symbol key Symbol Meaning Venting valve Shut off valve Non return valve Control valve Safety valve Temperature sensor Expansion vessel Pressure gauge Circulation pump Shunt shuttle valve o e D gt lt pa p lt Fan Installation Indoor unit installation Hydrolution with climate system and any addition MH RG10 Climate system 5 Required safety equipment 171 I O External heat source Outdoor unit Indoor unit NOTE These are the outline diagrams Actual installations must be planned according to applicable standards Installation Indoor unit installation Climate system Radiator system Under floor heating systems Fan convector system _ _ GP10 _ _ GP10 10 a do Ww o rO T I 1 1 Extra system Extra system Extra system AI volume volume volume ITI Overflow valve Overflow valve Overflow valve ei AI Radiator and under floor heating for heating Double under floor heating system for heating as well as fan convector system for cooling and fan convector for cooling 1 1 21 10 21 10 QN12 RR cp ser mom em em TEPA QN12
21. and installation spaces SAFETY PRECAUTIONS We recommend you to read this SAFETY PRECAUTIONS carefully before the installation work in order to gain full advantage of the functions of the unit and to avoid malfunction due to mishandling The precautions described below are divided into AWARNING and ACAUTION The matters with possibilities leading to serious consequences such as death or serious personal injury due to erroneous handling are listed in the AAWARNING and the matters with possibilities leading to personal injury or damage of the unit due to erroneous handling including probability leading to serious consequences in some cases are listed in NCAUTION These are very important precautions for safety Be sure to observe all of them without fail Be sure to confirm no anomaly on the equipment by commissioning after completed installation and explain the operating methods as well as the maintenance methods of this equipment to the user according to the owner s manual Keep the installation manual together with owner s manual at a place where any user can read at any time Moreover if necessary ask to hand them to a new user NWARNING Installation must be carried out by the qualified installer If you install the system by yourself it may cause serious trouble such as water leaks electric shocks fire and personal injury as a result of a system malfunction Install the system in full accordance
22. button to access Menu 1 0 Menu tree 1 0 N Hot water temp 1 1 N HW Peroid time 1 2 N Start temperature HW 1 3 N Stop temperature HW 14 U Stop temperature XHW L5 U Heat pump stop XHW 1 6 U Max heat p time XHW 1 7 U Interval XHW 1 8 U Next XHW action 1 9 U HW run time 1 10 0 S HW charge act set 10 1 S HW charge set temp 1 11 0 S CompFreq HW set tings 10 2 S Circ pump speed HW 10 3 S Circ pump manual 10 4 S HW reg min 10 5 S HW reg P 10 6 S HW reg Q 10 7 S HW reg sample time 10 8 S HW reg xp 10 9 S HW reg value for xP T a l 10 10 S Retum 11 1 S CompFreq HW set 11 2 S CompFreq manual 11 3 S CompFreq at 20 11 4 S CompFreq at 5 11 5 S Return 1 12 N Retum Control Control Control Control 2 0 N Supply temp 2 1 0 N Heating settings 2 1 1 N Offset heating Total 2 2 0 N Cooling settings 2 1 2 N Heating curve 2 1 3 0 U Own heating curve 2 1 3 1 0 Supply temp at 20 2 1 4 U Min supply heating 2 1 3 2 U Supply temp at 20 2 1 3 3 U Buckling temperature 2 1 3 4 U Supply t at buckl 2 1 3 5 U Return 2 1 5 U Circ pump speed heat 2 1 6 N Return 2 2
23. 1 42 Alarm relay 1 High priority alarm relay AA22 K1 0 inactive AA22 X2 1 2 1 active AA22 X2 1 3 Alarm relay 2 Low priority alarm relay AA22 K2 0 inactive AA22 X3 1 2 1 active AA22 X3 1 3 Tips m Always close forced control in Menu 9 3 7 1 after using it 135 Service DIP switches FDCW100VNX DIP switches FDCW100VNX Circuit board layout Expansion valve SW5 SW3 SW4 Model setting switch SM1 2 JSWI High pressure switch Outdoor unit power supply CNEEVI CNEEV2 CNJ CNI5 CNW2 0000 5 5 5 00 n GO gt z m 1 tua a H Thermistor TEDA E D 2 2 z 0 4 mo ca Ca O n Thermist 9 ermistor B 2 Tho R2 CNV E TN 1 7 SD OCT gg 0 005 5 00 Thermistor 00 08 52x6 52x5 2X4 52x3 52x2 52x1 epus Tho D Dn t OF B do 6 5 KN4 KN3 KN2 Tho S Tho A ou B e ao mon CO OO anam 0 Thermistor zn IPM CNN2 CNNI CNS CNF CNM Lower pressure sensor Pump down switch Fan motor 4w
24. 6 High KF Too high temperature out from the condenser Low flow in heating operation Too high set temperatures Also see the troubleshooting guide on page 111 7 Anti freeze HX Anti freeze of heat exchanger Occurs if alarm 72 occurs 3 times with in an hour Low flow during defrost Also see the troubleshooting guide on page 112 31 S fault HP Sensor fault high pressure BP4 Open circuit or short circuit on sensor input Sensor does not work Also see the troubleshooting guide on page 115 32 Sensor fault KF Sensor fault condensor out BT12 Open circuit or short circuit on sensor input Sensor does not work see Temperaturesensor section Also see the troubleshooting guide on page 116 103 Service Alarm list Alarm no Alarm text on the display Description May be due to 33 S fault Liquid line Sensor fault liquid line BT15 Open circuit or short circuit on sensor input Sensor does not work see Temperature sensor section Also see the troubleshooting guide on page 116 FDCW100VNX alarm Alarm no Alarm text on the display Description May be due to 5 OU Com error Communication between the outdoor unit and HM270V is not made Isolator switch for FDCW100VNX off Electrical noise from the other equipment E35 High HX temp Temperature deviation on
25. 9 5 6 S Run time hot water 9 5 7 S Program version 9 5 8 S 106 card version 9 5 9 S Display version 9 5 10 S Relay card version 9 5 11 S Lowest supply temp 9 5 12 S Percent runtime 9 5 13 S Period 9 5 14 S Run status 9 5 15 S Run status last 9 5 16 S Run status time 9 5 17 S Return 9 6 1 S CompFreq 9 7 S Reset alarm 9 6 2 S Manual CompFreq 9 6 3 S Max deltaF 9 6 4 S CompFreq regP 9 6 5 S Time min freq start 9 6 6 S Time min freq heat 9 6 7 S Max diff flow cFlow 9 6 8 S CompFreq GMz 9 6 9 S Return 9 8 0 S Alarm log 9 8 1 0 S Log 1 9 8 x 1 S Time 9 8 x 2 S Alarm type 9 8 x 3 S Run status 9 8 x 4 S Run status last 9 8 x 5 S Run status time 9 0 S Service menus 9 9 S Return 9 8 2 0 S Log 2 Control Control 9 8 x 6 S Run time compressor 9 8 x 7 S Outdoor avg 1min 9 8 x 8 S Outdoor temp Tho A 9 8 x 9 S Supply Return temp 9 8 x 10 S Condensor out 9 8 x 11 S Hot water temp 9 8 x 12 S CompFreq act set 9 8 x 13 S Heat Ex Tho R1 9 8 x 14 S Heat Ex Tho R2 9 8 x 15 S Suction temp Tho S 9 8 x 16 S Hot gas Tho D 9 8 x 17 S Liquid line temp 9 8 x 18 S HP 9 8 x 19 S LP LPT 9 8 x 20 S OU current CT 9 8 x 21
26. CPU card EBV card R24 Setting fuse size R25 Setting max power electrical addition R26 Setting max boiler temperature Communication board Contactor Contactor Contactor Contactor Sensor thermostats BT6 BT19 BT24 BT30 FD1 Temperature sensor tank water Temperature sensor immersion heater Temperature sensor external heat source Thermostat standby mode Temperature limiter 163 Technical data Component positions Miscellaneous UBI UB2 PF1 PF3 PF4 Cable gland Cable gland Rating plate Serial number plate Sign pipe connections Technical data Component positions Outdoor unit Component image List of components 208 Solenoid for 4 way valve 63H1 High pressure switch CM Compressor motor EEV C Expansion valve cooling EEV H Expansion valve heating FMol Fan motor LPT Low pressure sensor Control PCB PWB2 Inverter PCB PWB3 Noise filter PCB QM35 Service valve liquid side QM36 Service valve gas side TB Terminal block 164 Technical data Dimensions Dimensions Indoor unit FU tm H IL 27 M 1760 350 337 127 500 550 95 6552 M 32 35 40 42
27. Cooling Defrost Oil return or XHW Menu 9 5 15 S Run status last Shows the previous operating status for FDCW100VNX The display can show Off Hot water Heating Cooling Defrost Oil return or XHW Menu 9 5 16 S Run status time The time since the last operating status change Menu 9 5 17 S Return Return to Menu 9 5 0 Menu 9 6 0 S Heat reg settings Settings regarding the heating regulator can be made in the sub menus to this menu Menu 9 6 1 S CompFreq The current target frequency of the compressor is shown here Setting the target frequency during manual control of the compressor is activated in Menu 9 6 2 Setting range 20 85 Hz Menu 9 6 2 S Manual CompFreq Select On to control the compressor frequency manually in Menu 9 6 1 Setting range Off On Default value Off Control Control Menu 9 6 3 S Max deltaF The parameter for the heat regulator s max change of the target compressor frequency is selected here Setting range 1 10 Hz Default value 3 Hz Menu 9 6 4 S CompFreq regP Select P part for heat regulator Setting range 1 60 Hz Default value 5 Menu 9 6 5 S Time min freq start Select here the time that the compressor is to run at min speed after start connecting to the climate system Setting range 10 120 min Default value 70 min Menu 9 6 6 S Time min freq heat Select here the time that the compressor is to run at fixed frequency after
28. Do not perform brazing work in the airtight room It can cause lack of oxygen Use the prescribed pipes flare nuts and tools for R410A Using existing parts for R22 or R407C can cause the unit failure and serious accidents due to burst of the refrigerant circuit Tighten the flare nut by using double spanners and torque wrench according to prescribed method Be sure not to tighten the flare nut too much Loose flare connection or damage on the flare part by tightening with excess torque can cause burst or refrigerant leaks which may result in lack of oxygen Do not open the service valves for liquid line and gas line until completed refrigerant piping work air tightness test and evacuation If the compressor is operated in state of opening service valves before completed connection of refrigerant piping work air can be sucked into refrigerant circuit which can cause bust or personal injury due to anomalously high pressure in the refrigerant Do not put the drainage pipe directly into drainage channels where poisonous gases such as sulphide gas can occur Poisonous gases will flow into the room through drainage pipe and seriously affect the user s health and safety Only use prescribed optional parts The installation must be carried out by the qualified installer If you install the system by yourself it can cause serious trouble such as water leaks electric shocks fire Do not run the unit with removed panels or p
29. Lin 3 Ext Bin 3 Default value Internal power Menu 9 2 9 S Return Return to Menu 9 2 0 Menu 9 3 0 S Operating settings Settings regarding accessories additional heat operation floor drying and a return to the factory settings can be made in the sub menus to this menu Menu 9 3 1 S Max boiler temp The setting selected on the PCB AA22 knob R26 is shown here Menu 9 3 2 S Logger Select here if logger is installed Setting range Off On Default value Off Menu 9 3 3 S Cooling system Select if cooling system is installed accessory required Setting range Off On Default value Off Menu 9 3 4 S Heating system 2 Usage of heating system 2 is defined in this menu If Off is selected in Menu 9 3 3 only Off or Heat can be selected accessory required Setting range Off Heating Heating Cooling Cooling Default value Off Menu 9 3 5 S Room unit Here you select whether the Room unit is to be activated or not accessory required Setting range Off On Default value Off Menu 9 3 6 S Room sensor type Room sensor type is selected here Menu 6 0 can be accessed if other than Off is chosen Setting range Off 10 Default value Off Menu 9 3 7 0 S Forced control Settings regarding forced control of the relays in the heat pump are made from the sub menus in this menu Menu 9 3 7 1 S Forced control When is selected in this me
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31. NO or sensor for suction gas Are the characteristics of the low pressure sensor and sensor for suction gas temperature OK temperature replace YES Is the low pressure normal during NO Top up refrigerant operation YES Defective control PCB replace 127 Service Troubleshooting guide E51 Inverter and fan motor error YES Replace the inverter PCB Is the voltage DC 15 V between the contacts CNI4 2 3 on the inverter PCB NO Is the voltage DC 15 V on the control PCB side after the contact CNI3 or 1 has been removed Defective cable between control YES PCB and inverter PCB NO Is the voltage DC 15 V at the fan motor s contact YES Replace the fan motor NO Replace the control PCB 128 Service Troubleshooting guide E53 S fault Tho S Is the sensor for the suction gas temperature Tho S correctly connected NO Connect it YES Are the characteristics for the suction gas sensor OK NO Replace the sensor YES Replace the control PCB 129 Service Troubleshooting guide E54 S fault LPT Is the low pressure sensor ea correctly connected YES Does the pressure external meter Check the amount of refrigerant correspond with the value YES displayed in the indoor unit Check the refrigerant circuit Replace the low press
32. Only the compressor is operational 6 Add Heat only Heat pump is not operational The function is activated deactivated by pressing in the operating mode button for 7 seconds To use the cooling functions the system must be designed to withstand low temperatures and cooling must be activated in Menu 9 3 3 Changing the room temperature manually If you want to temporarily or permanently increase or lower the indoor temperature turn the Offset heating curve knob clockwise to increase or anticlockwise to lower One line approximately represents 1 degree change in room temperature NOTE An increase in the room temperature may be inhibited by the radiator or underfloor heating thermostats if so these must be set at 0 Default Heating curve setting The basic heating is set using Menu 2 1 2 and with the Heating curve offset knob If the room temperature does not reach the target readjustment may be necessary If you do not know the correct settings use the basic data from the automatic heating control system diagram on the right Heating curve 2 1 2 Menu 2 1 2 Heating curve Offset heating curve Heating curve offset for system 2 can be made in Menu 3 1 NOTE Wait one day between settings so as to stabilise the temperatures For Home Owners Comfort setting heating Setting with diagrams The diagram shows the relation between the outdoor air temperature in the area and the target
33. The fan must not rotate freely Defective control PCB in FDCW100VNX Defective fan motor Control PCB in FDCW100VNX dirty Fuse F2 blown Also see the troubleshooting guide on page 125 E49 LP alarm Too low value on the low pressure sensor 3times within 60 minutes Open circuit or short circuit on input for low pressure sensor Defective low pressure sensor Defective control PCB in FDCW100VNX Open circuit or short circuit on input for suction gas sensor Tho S Defective suction gas sensor Tho S Also see the troubleshooting guide on page 126 E51 Inverter error Continuous deviation on power transistor for 15 minutes Defective fan motor Defective inverter PCB in FDCW100VNX Also see the troubleshooting guide on page 128 E53 S fault Tho S Sensor fault suction gas in FDCW100VNX Tho S Open circuit or short circuit on sensor input Sensor does not work see Temperature sensor section Defective control PCB in FDCW100VNX Also see the troubleshooting guide on page 129 105 Service Alarm list Alarm Alarm text on the Description May be due to display E54 S fault LPT Sensor fault low pressure sensor in FDCW100VNX Open circuit or short circuit on sensor input Sensor does not work see Temperature sensor section Defective control PCB in FDCW100VNX Fault in the refrigerant circuit Also see the trou
34. Troubleshooting guide Troubleshooting guide 3 Thermal cutout Measure the voltage through the Can it be reset mechanically when the temperature is 80 temperature limiter FD1 Has the temperature limiter been YES NO mechanically tripped YES Was the hot water temperature greater than 90 when the alarm Is the voltage supply OK NO Check supply power voltage was tripped according to the alarm log YES YES Check the function of contactors Is there 230 V between J8 45 46 on the relay board AA6 YES Replace relay card AA6 QAL QA2 and QA3 NO Check wiring 108 Replace temperature limiter Check the characteristics of the immersion heater sensor and that it is correctly positioned Service Troubleshooting guide 4 OU power failure Is the voltage supply OK Check supply power voltage YES Has miniature circuit breaker FA2 YES Turn on the breaker tripped NO Check contactor QA10 and wiring to the outdoor unit 109 Service Troubleshooting guide 5 Low condenser out Are the characteristics of the condenser out sensor BT12 OK NO Replace the YES Is the service valve on the Open it water line open YES Is the valve s QM31 or QNI1 functioning properly Is the operation signal of the NO NO Replace the valves outputted correct
35. XL1 Climate system supply 22 mm XL2 Climate system return 22 mm XL3 Cold water 22 mm XL4 Hot water 22 mm XL 13 Liquid line refrigerant 3 8 XL14 Gas line refrigerant 5 8 XL15 Connection safety valve manometer Installation Indoor unit installation Pump capacity diagram kPa 60 BR Available pressure 0 0 05 0 11 0 16 022 028 0 33 0 39 044 05 0 55 Flow 2 s Connection of extra circulation pump When connecting extra circulation pumps requirements for pressure maximum flow etc must be met See page 29 for location Overflow valve must be installed in case extra circulation pump is used Connecting the climate system Pipe connections for the climate system are made at the top m Allrequired safety devices and shut off valves installed as close to the HM270V as possible must be fitted m Install the bleed valves where necessary highest point of the water system in usual case m The safety valve FL2 must be installed on XL15 as illustrated The entire length of the overflow water pipe from the safety valves must be inclined to prevent water pockets and must also be frost proof 2 m When connecting to a system with thermostats on all radiators an overflow valve must be fitted or some of the thermostats must be removed to ensure sufficient flow m See section Dockings on page 27 for outlin
36. climate system during under floor cooling 100 0 Max flow climate system 0 57 0 5 Min flow climate system 0 15 Nominal system flow radiators AT 10K 0 215 0 5 Nominal system flow under floor heating AT 5K 0 43 l s Nominal system flow fan convectors AT 10K 0 19 0 5 Nominal system flow cooling AT 5K 0 38 0 5 Regards circulating volume 7 45 9 kW 35 7 8 KW External circulation pump must be used when the pressure drop in the system is greater than the available external pressure In such case a bypass line with non return valve must be installed Use an overflow valve if system flow cannot be guaranteed System description General Explanation External ONII Mixing valve QN12 Shuttle valve for heating cooling RM Non return valve CMI Expansion vessel EP21 Heating system 2 10 Circulation pump external 1 KF External control PGI Flow indicator MH RG10 Room sensor MH RG 10 accessory CPI Buffer vessel accessory Safety valve 1 Mixer valve HW HM270V Temperature sensor outdoor air external BT2 Temperature sensor supply BT3 Temperature sensor heat exch in Twin BT6 Temperature sensor tank water BT12 Temperature sensor heat exch out Twout BTI5 Temperature sensor liguid pipe Thi L BT19 Temperature sensor immersion heater BT24 Temperature sensor external heat source BT30 Thermostat standby mode FD1 Temperature limiter BP4 High pressure sensor ON
37. equipment O A place where chemical substances like sulfuric gas chloric gas acid and alkali including ammonia which can harm the unit will not be generated and not remain O A place where strong wind will not blow against the outlet air blow of the unit Wind direction Over 500 mm Wind direction Example installation I n 3 There must be 1 meter or larger space in the above u Where a danger of short circuiting exists install guide louvers When more than one unit are installed provide sufficient intake space consciously so that short circuiting may not occur Where piling snow can bury the outdoor unit provide proper snow guards 150 300 West i Space barrier wall placed in front of the exhaust diffuser must not be higher than the unit 5 5 Open Open 500 m4 5 Installation space mm MODE 100V 140V L Walls surrounding the unit the four sides are not acceptable L2 300 5 ZZZZZZZ777777 6 Installation CD Anchor bolt fixed position 2 Notabilia for installation In installing the unit fix the unit s legs with bolts specified on the left Intake The protrusion of an anchor bolt on the front side must be kept within 15 mm u Fasten with bolts Securely install the unit so that it does not fall over during earthquakes or strong winds etc d M10 12 Refer to the left illustrations for information regardi
38. lt Heo tno Function Heating Def Cool System description Fan convectors heating and cooling Foncoil Heoting Cooling Foncoil Tempcontrol MH RG10 Externol to FC Foncontrol Externol to FC Droinage amp piping insulation Indoor unit Optional 1 Optional 4 _ Optional 6 Optional 7 Room sensor HW parts Flow relief valve Extra system pump HV RGIO GP10 M m _G BP4 High pressure sensor 0 4 6MPa BPS Pressure gauge 0 4 Bar BTI Temperature sensor outdoor air external enclosed BT2 Temperature sensor supply BT3 Temperature sensor heat exch in Twin BT6 Temperature sensor tank water 2 Temperature sensor heat exch out Twout 5 Temperature sensor liquid pipe Thi L BTI9 Temperature sensor immersion heater BT24 Temperature sensor external heat source BT30 Thermostat standby mode 35 45 C adjustable CMI Expansion vessel CPI Buffer vessel cw Sanitary cold water inlet EBI Immersion heater 9kW 3 EP2 Heat exchanger FDI Temperature limiter 98C FLI Safety valve HW FL2 Safety valve tank 2 5 Bar FQI Mixing valve HW GPI Circulation pump climate system variable flow GP10 Circulation pump external 1 Strainer water
39. offset Adjust the settings Check Menu 2 1 1 2 1 2 for heating system 1 3 1 3 2 for heating system 2 2 1 1 2 22 for cooling system Heat pump in incorrect operating mode Change operating mode to AutoC Start temp cooling setting is too high Adjust the setting Check Menu 8 2 4 Heat load is too high Remove the excess heat load The compressor does not start Minimum time between compressor starts alternatively time after power switch on not being achieved Wait 30 minutes and check if the compressor starts Alarm tripped See section Alarms Alarm cannot be reset Activate operating mode Add heat only Panel gone out Check and replace any blown circuit andmain fuses Set switch SF1 to standby ASN For Home Owners Dealing with comfort disruption The phenomena mentioned below are not malfunction The air conditioning system sounds as if water is draining from it Sounds of rustling or gurgling may be heard when the operation is started when the compressor is activated deactivated during operation or when the operation is stopped These are the sounds of the refrigerant flowing through the system Sounds of rustling or gurgling may be heard from a stopped indoor unit These sounds can be heard when the air conditioning system is performing automatic control The air conditioning system cannot start opera
40. 1 N Allow add heat 8 3 0 U Current limiter 822 N Add heat only 8 2 3 U 1 Stop temp heating 8 24 U Start temp cooling 82 5 U Hysteresis 82 6 N Return 8 3 1 U Fuse size 8 5 0 U Period settings 8 3 2 U Max electric power 8 3 3 U Current phase 1 8 3 4 U Current phase 2 8 3 5 U Current phase 3 8 3 6 U Transform ratio EBV 8 3 7 U Return 8 5 1 U Period time 8 6 N Return 8 5 2 U Max time for HW 8 5 3 U Return 9 0 S Service menus 9 1 0 S Heat pump settings 9 1 1 S DM start heating 9 2 0 S Add heat settings 9 1 2 S DM start cooling 9 1 3 S Stop Temp heat low 9 1 4 S Stop Temp heat high 9 1 5 S Stop Temp cool low 9 1 6 S Stop Temp cool high 9 1 7 S Time bet starts 9 1 8 S Min CompFreq act set 9 1 9 S Max CompFreq act set 9 1 10 S OU current act max 9 1 11 S Tank defrost Temp 9 1 12 S Return 9 2 1 S DM start add heat 9 3 0 S Operating settings 9 2 2 S Time factor 9 2 3 S Docking type 9 2 4 S Reg amplification 9 2 5 S Reg integrator time 9 2 6 S Shunt amplification 9 2 7 S Shunt amplification2 9 2 8 S Add heat type 9 2 9 S Return 9 3 1 S Max boiler temp
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42. 16 C at 35 C outdoor air temperature condition o e c c 0 2 30 40 Outdoor air temperature Calculated supply water temperature Upper Lower limit of the supply water temperature Regardless of the cooling curve setting and the outdoor air temperature target supply water temperature can not exceed the min max supply water temperature set in Menu 2 2 4 and 2 3 Upper and lower limit is set after various offset correction Water temperature control when deviated from the target When the DM value is significantly big supply water temperature must be controlled lower than target temperature to reduce the surplus of DM value However too big overshoot of the supply temperature will affect comfort In order to control the supply water temperature to avoid fluctuation of room temperatre overshoot limit is set in Menu 9 6 7 Max diff flow cFlow Once the supply water temperature reaches the threshold of Menu 9 6 7 thereafter the compressor speed is controlled so that the supply water temperature is kept above the overshoot limit Service Operation control function by the indoor unit controller Cooling thermo ON OFF control Principle of the control such as DM value is the same as heating operation DM Degree Minutes value DM value is limited from 100 to 400 and does not exceed the limit Operation state transition according to DM value According t
43. 3 2 for heating system 2 The figure below shows the case that heating curve 9 is chosen In this case the target supply water temperature is 55 C at 20 C outdoor air temperature condition Heating curve offset 0 HEATING CURVE 151413 12 11 10 9 Supply water temperature E tA 10 0 10 20 30 40 C 5 Outdoor air temperature OFFSET HEAT CURVE Heating curve offset It is possible to offset the heating curve chosen in the menu above in order to obtain higher target supply water temperature The offset for heating system 1 can be set using the knob on the controller The set value can be seen in Menu 2 1 1 The figure below shows the case that heating curve 9 is chosen with heating curve offset 2 In this case the target supply water temperature is 60 C at 20 C outdoor air temperature condition Heating curve offset 2 HEATING CURVE C E 151413 12 11 10 9 5 7 60 E 6 L x 50 4 s gt 40 p evene 30 22 1 5 10 20 5 Outdoor air temperature OFFSET HEAT CURVE The offset for heating system 2 can be set in Menu 3 1 Service Operation control function by the indoor unit controller Upper Lower limit of the supply water temperature Regardless of the heating curve setting and the outdoor air temperature target water temperature cannot exceed the min max su
44. 5 14 2 U Inverter temp Tho IP The current inverter temperature is shown here Menu 5 14 3 U Return Return to Menu 5 14 0 Control Control Menu 5 15 0 S OU communication Readings regarding any communication errors can be made in the sub menus to this menu Menu 5 15 1 S Com error rate Shows the percentage of incorrect communications with FDCWI100VNX since start up Menu 5 15 2 S Com errors Shows the total number of incorrect communications with FDCWI100VNX since start up Menu 5 15 3 S Reset com errors Select Yes here to reset the counters in menu 5 15 1 and 5 15 2 The settings returns to No once the action has been carried out Setting range Yes No Menu 5 15 4 S Return Return to Menu 5 15 0 Menu 5 16 N Return Return to Menu 5 0 6 0 N Room temperature Requires accessory and activation in Menu 9 3 6 Menu 6 1 U Room compensation A factor is selected here that determines how much the calculated supply temperature is affected by the difference between the room temperature and the set room temperature A higher value gives a greater change Setting range 0 10 0 Default value 2 0 Menu 6 2 U Heating system You select here whether the room sensor is Valid for heating system 1 menu 2 0 and or heating system 2 menu 3 0 Setting range Off System 1 System 2 System 1 2 Default value Off Menu 6 3 N Room temp setpoint The desired room temperature is sh
45. 9 8 x 27 S Return Return to Menu 9 8 x 0 Menu 9 8 5 S Clear alarm log Select Yes to erase the entire alarm log The settings returns to No once the action has been carried out Setting range Yes No Menu 9 8 6 S Return Return to Menu 9 8 0 Menu 9 9 S Return Return to Menu 9 0 System description System description System description Principle of operation Principle of operation Hydrolution kaj c3 Function Hydrolution is a system that can produce heating hot water and cooling The principle during heating can be simplified as follows 1 The refrigerant in FDCW100VNX retrieves heat from the outdoor air then compresses it which increases the temperature further 2 The hot refrigerant now in gas state is routed into HM270V 3 The refrigerant releases the heat for further distribution in the system 4 The refrigerant now in liquid state is routed back to FDCWI100VNX and the process is repeated By reversing the process thereby allowing the refrigerant in FDCW100VNX to retrieve the heat from the water and release it into the outdoor air the heat pump can cool instead if necessary HM270V determines when FDCW100VNX is to work and not to work using the collated data from the temperature sensor In the event of extra heat demands HM270V can connect additional heat in the form of the internal immersion heater or any conne
46. Add heat settings Settings regarding additional heat shunt in HM 270V and any extra shunt can be made in the sub menus to this menu Menu 9 2 1 S DM start add heat The degree minute deficit to activate additional heat supply is set here Setting range 1000 30 Default value 400 Menu 9 2 2 S Time factor The time factor of the immersion heater since first start up is shown here The value is saved and is not reset even when the boiler is switched off using the main power switch Menu 9 2 3 S Docking type No function Menu 9 2 4 S Reg amplification P section for additional heat control Setting range 0 10 0 Default value 1 5 Menu 9 2 5 S Reg integrator time I section for additional heat control Setting range 5 60 Default value 10 Menu 9 2 6 S Shunt amplification Applies to shunt 1 QNI11 E g 2 degrees difference and 2 in amplification gives 4 sec min controlling the shunt Setting range 0 1 5 0 Default value 1 0 Menu 9 2 7 S Shunt amplification2 Applies to any heating system 2 accessory required E g 2 degrees difference and 2 in amplification gives 4 sec min controlling the shunt This function compensates for the speed variation found on different shunt motors that may be installed Setting range 0 1 5 0 Default value 1 0 Menu 9 2 8 S Add heat type Select the type of additional heat source to be used Setting range Internal power Ext 1 step Ext
47. Are the characteristics for the sensor OK See Temperature NO Defective sensor replace sensor section YES Replace the EBV board AA22 14 Service Troubleshooting guide 31 S fault HP Is the pressure sensor BP4 correctly connected x YES Is the saturated temperature of Does the pressure external meter AE balanced pressure same or similar correspond with the value YES displayed in the indoor unit NO Replace the refrigerant to the outdoor air temperature when the outdoor unit is stopping YES Replace the pressure sensor Is the service valve on the refrigerant NO Open it line open YES Is the service valve on the water NO Open it line open YES Is the valve s QM31 or QNI1 NO Is the operation signal t th NO gt Replace the indoor unit relay board AA6 functioning properly valves outputted correctly YES YES Replace the valve s Is there clogging on the strainer Eems YES Clean up the strainer on the water line Is air bleed done properly NO Bleed the air in the water line YES Is the circulation pump setting 2 2 5 Set the appropriate value NO done properly to obtain enough water flow YES If the phenomenon persists Is the operation signal of the pump YES Replace the pump outputted correctly NO Replace the indoor unit relay board AA6 15 Service Troublesho
48. Hot water mode Operation changed to 3 Alternating mode of Heating with the lowest allowable temperature of supply water as the target If the supply water temperature does not reach the target electric heater is forcibly activated regardless of the setting so that the supply water temperature is kept at the lowest allowable temperature 2 In 1 Auto or 2 AutoC mode and the condition to choose 5 Hot water mode is fulfilled 3 Heating mode is chosen instead and the circulation pump operates at all time When the outdoor air temperature BT1 exceeds 1 C the exceptional operation is deactivated During combined mode of heating it is also deactivated regardless of the outdoor air temperature BT1 if the target temperature of supply water exceeds its lowest allowable temperature plus 1 C Service Operation control function by the indoor unit controller Supply water temperature control in heating Target supply water temperature can be seen in Menu 2 0 for heating system 1 and 3 0 for heating system 2 For dual system the target temperature for downstream heating system must be lower than that for upstream heating system Heating curve Heating curve is the basic principle to decide the target supply water temperature for heating The lower the outdoor air temperature BT1 becomes the higher the target supply water temperature becomes and the characteristics can be adjusted in Menu 2 1 2 for heating system1 or in Menu
49. Locations where cosmetic or special sprays are often used Locations with direct exposure of oil mist and steam such as kitchen and machine plant Locations where any machines which generate high frequency harmonics are used Locations with salty atmospheres such as coastlines Locations with heavy snow If installed be sure to provide base flame and snow hood mentioned in the manual Locations where the unit is exposed to chimney smoke Locations at high altitude more than 1000m high Locations with ammonic atmospheres Locations where heat radiation from other heat source can affect the unit Locations without good air circulation Locations with any obstacles which can prevent inlet and outlet air of the unit Locations where short circuit of air can occur in case of multiple units installation Locations where strong air blows against the air outlet of outdoor unit It can cause remarkable decrease in performance corrosion and damage of components malfunction and fire Do not install the outdoor unit in the locations listed below Locations where discharged hot air or operating sound of the outdoor unit can bother neighborhood Locations where outlet air of the outdoor unit blows directly to plants Locations where vibration can be amplified and transmitted due to insufficient strength of structure Locations where vibration and operation sound generated by the outdoor unit can affect serious
50. OOO External extra vincet X6 AA22 enel hot water input EP21 BT2 Temp sensor supply line heating system 2 EP21 BT3 Temp sensor return line heating system 2 Room temp sensor Installation Indoor unit installation How to connect external circulation pump and heat source on X3 How to connect external circulation pump 11213 5 GP10 EP21 GP10 Max output is up to 50W EMEN LO 1 2 3 4a 4b 5a 5b How to connect external heat source 11213 5 5 Jumper wire on 2 and 3 must be removed External heat source Max current is 0 2A Installation Start up and inspection Start up and inspection Preparations Connect FDCW100VNX to HM270V refrigerant pipe and wiring and connect HM270V to the climate system Filling the climate system 1 Ensure that the pressure gauge BP5 is visible 2 Connect a hose to the filling valve 1 and open the valve to fill the boiler and the radiator system 3 After a while the pressure gaug
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52. air temperature For Home Owners Comfort setting cooling For Home Owners Comfort setting hot water Comfort setting hot water The integrated water heater is a coil model and is heated by circulating water which is heated by the heat pump During normal consumption it is enough to run the heat pump to supply the different tapping points of the house with hot water The temperature of the hot water in the water heater then varies between the set values Under section 1 0 N Hot water temp on page 40 there is a complete description of menu settings for hot water temperatures Available volume Hot water volume 600 8 l min 500 E 400 12 l min E 9 300 E ES 5 24 0 mi 200 N 100 0 50 53 56 59 62 65 Stop temp HW C This graph is based on the following conditions Inlet water temperature 15 C Outlet water temperature 40 C Outdoor air temperature 7 C Start temp HW setting 55 C Stop temp HW setting is 58 C or higher Stop temp HW 3 C Stop temp HW setting is lower than 58 C Prioritizing When the water temperature in the tank drops heat pump operation shifts to hot water production In case there is demand for both hot water and heating cooling for long time operation mode is periodically switched between hot water and heating cooling For details see Menu 1 0 Hot water temp and Menu 8 5 0 Period settings Extra Hot Water
53. continuously i Red LED stays lighting Green LED keeps flashing ii It is possible to restart when the low pressure is 0 087MPa or higher iii Electronic expansion valve cooling heating is kept fully open 101 Service Operation control function by the outdoor unit controller b Stop by the error detection control i Red LED keeps flashing Green LED keeps flashing ii Restarting is prohibited To return to normal operation reset the power supply iii Electronic expansion valve cooling heating is kept fully open When cumulative operation time of compressor under the pump down control is elapsed 5 minutes i Red LED stays OFF Green LED keeps flashing ii It is possible to pump down again iii Electronic expansion valve cooling heating is kept fully open Note After the stop of compressor close the operation valve at the gas side 102 Alarm list Alarm with automatic reset Service Alarm list Alarm Alarm text on the no display Triggers alarm Resets alarm 70 Low condenser out When condenser supply BT12 is less than 5 C When condenser supply is greater than 14 C 71 lHighKF When condenser supply is greater than 60 C and there are more than 120 seconds since shifting to the heating system When condenser supply is lower than 51 C 72 Anti freeze HX When the low pressure is less than 6 5 bar in coo ling mode or lower than 5 0 bar during defrost
54. external automatic control device KF as follows P1 should stop when BT24 senses 65 C at maximum P1 shouldn t start until T1 reaches 55 C at minimum V1 must control the supply temperature at 65 C or lower Accumulators and primary system design are dimensioned by the boiler supplier Ensure that there is sufficient volume to prevent overheating Service Service Service Operation control function by the indoor unit controller Operation control function by the indoor unit controller Operation mode General The modes mentioned below can be chosen from the control panel Hot water operation always has the first priority over heating cooling Mode Function 1 Auto e The mode is automatically switched over between 3 Heating mode and 5 Hot water operation mode Automatic switching rule is mentioned below 2 AutoC e The mode is automatically changed among 3 Heating mode 4 Cooling mode and 5 Hot water mode Automatic switching rule is mentioned below 3 Heating Hot water is supplied for heating Circulation pump is always running for heating regardless of the outdoor unit operation Hot water operation will be made when the tank water temperature lowers Alternating mode see page 64 for details e When the outdoor unit can not cover the heat load electric heater use is allowed and water in the tank is supplied for heating to fulfill the required heat load Combined mode see page 64 f
55. failure of the unit due to electric noises Fasten cables so that may not touch the piping etc When cables are connected make sure that all electrical components within the electrical component box are free of loose Wiring diagram connector coupling or terminal connection and then attach the cover securely Improper cover attachment can result in malfunctioning or a failure of the unit if water penetrates into the box Otis attached on thie back side af the service panel Wiring guide Outgoing cable direction Connect a pair bearing a common terminal number with an indoor outdoor connecting wire OAs like the refrigerant pipe it can be let out in any of the following directions side right front In cabling fasten cables securely so that no external force may work on terminal connections Tear and downward Grounding terminals are provided in the control box Always perform grounding system installation work Power cable indoor outdoor connecting wires with the power cord unplugged Outdoor Unit Indoor Unit X2 terminal 5 COMMISSIONING For details of commissioning refer to the Indoor unit installation manual Before conduct a test run make sure that the operation valves are open Turn on power 6 hours prior to a test run to energize the crank case heater Do not turn
56. heating with the immersion heater does not make any savings Emergency mode Emergency mode is activated by setting the switch to ASV It is used when the control system and thereby operating mode Add heat only do not function as they should Emergency mode is activated by setting switch SF1 to ASV The following applies in emergency mode m The front panel is not lit and the control computer in HM270V is not connected m FDCWIOOVNX is off and only the circulation pump and immersion heater in HM270V are active m An electrical step of 4 kW is connected The immersion heater is controlled by a separate thermostat BT30 m The automatic heating control system is not operational so manual shunt operation is required Call installer For Home Owners Alarm indications Alarm indications There are many monitoring functions integrated in Hydrolution Different types of alarms To alert you to any malfunctions the control computer transmits m Alarms with automatic reset do not need to be alarm signals that can be read from the front panel display acknowledged when the cause has disappeared m Existing alarms that require corrective action by you or the What happens in the event of an alarm installer m The background lighting in the display starts flashing and m A complete list of alarms is on page 64 the status lamp lights red m Some alarms change operating mode to heat only Recommen
57. is most easily carried out by holding the Operating mode button in for 7 seconds NOTE Recurring alarms mean that there is a fault in the installation Contact your installer Installation Installation Installation Outdoor unit installation Outdoor unit installation PSBO12D955C OThis installation manual deals with outdoor units and general installation specifications only For indoor units refer to the respective installation manuals supplied with the units OhRead this manual carefully before you set to installation work and carry it out according to the instructions contained in this manual Check before installation work Accessory Edging 1 piece knock out hole protection Model name and power source Refrigerant piping length Piping wiring and miscellaneous small parts Indoor unit installation manual 1 HAULAGE AND INSTALLATION Take particular care in carrying in or moving the unit and always perform such an operation with two or more persons NCAUTION When a unit is hoisted with slings for haulage take into consideration the offset of its gravity center position If not properly balanced the unit can be thrown off balance and fall 1 Delivery 4 Caution about selection of installation location Deliver the unit as close as possible to the installation site before removing it 1 If the unit is installed in the area where the snow will accumulate followin
58. is permitted to start again when the outdoor air temperature increases by two degrees above the set value Setting range 10 43 C Default value 10 C Menu 9 1 6 S Stop temp cool high Highest limit of the heat pump s working range during cooling It stops above this outdoor air temperature The heat pump is permitted to start again when the outdoor air temperature decreases by two degrees below the set value Setting range 10 43 C Default value 43 C Menu 9 1 7 S Time bet starts Minimum time interval in minutes between compressor starts in the heat pump Setting range 0 60 min Default value 0 min Control Control Menu 9 1 8 S Min CompFreq act set Select the min compressor frequency here Both actual and set Value is shown Setting range 20 80 Hz Default value 20 Hz Menu 9 1 9 S Max CompFreq act set Select here the max limit for the compressor actual and set value is shown Both Setting range 25 85 Hz Default value 85 Hz Menu 9 1 10 S OU current act max The phase current to FDCW100VNX is shown and the highest permitted current can be set here Setting range 7 17 Default value 15 Menu 9 1 11 S Tank defrost Temp If the system is colder than the set value during defrosting connecting to HW If HW is colder the electric heater starts Setting range 20 30 C Default value 20 Menu 9 1 12 S Return Return to Menu 9 1 0 Menu 9 2 0 S
59. m Ifthe room temperature is low increase the Heating curve offset setting by one step clockwise m Ifthe room temperature is high reduce the Heating curve offset setting by one step anti clockwise Heating system 2 If the heating system has two different type of emitter like radiator and under floor heating it is possible to set two different calculated supply temperature System 1 for higher supply temperature can be set in Menu 2 1 0 and system 2 for lower supply temperature can be set in Menu 3 0 Vacation set back When you are away from home for a long time it is possible to set the target supply water temperature for heating lower than usual to save energy consumption Also it is possible to cancel hot water operation during the period For details see Menu 7 5 0 Vacation set back Comfort setting with room sensor If MH RG10 is installed operation mode is chosen not only by outdoor air temperature but also by room air temperature Upper limit of the outdoor air temperature to operate in Heating mode can be set in Menu 8 2 3 Stop temp Heating Lower limit of the outdoor air temperature to operate in Cooling mode can be set in Menu 8 2 4 Start temp Cooling Target room air temperature can be adjusted by turning the knob on MH RG10 and it is displayed in Menu 6 3 For details see instruction manual for MH RG10 The below figure shows an example of mode transition o 5 Hot water product
60. mixing valve select relay K5 to position 1 and relay K4 to position 0 The mixing valve is locked when K4 and K5 are in position 0 Relays K13 and K14 are used to open and close mixing valve 2 Therefore relays K13 and K14 must not be set to mode 1 at the same time To open the mixing valve select relay K13 to position 1 and relay K14 to position 0 To close the mixing valve select relay K14 to position 1 and relay K13 to position 0 The mixing valve is locked when and K14 are in position 0 134 Relay functions Service Function check components Relay Component Name Status Function Connection K1 Circulation pump climate system GP1 0 Off 1 X1 2 K2 K3 Shuttle valve for Cooling heating QN12 K2 0 K3 0 Off K2 0 K3 1 On X1 4 K4 Mixing valve QN11 1 Open X1 13 K5 Mixing valve QNI1 1 Close 1 14 K6 Reversing valve climate system QM31 0 Closed 1 1 20 K7 Reversing valve hot water QM30 0 Closed 1 1 23 K8 Contactor electrical step 2 QA2 0 Off 1 On 1 26 K9 Contactor electrical step 1 0 Off 1 1 27 K10 Contactor electrical step 3 QA3 0 Off 1 On X1 28 Operating contactor Outdoor unit QA10 0 Off 1 On X1 30 K12 Circulation pump 10 0 Off 1 X1 38 K13 Mixing Valve system 2 EP21 QN11 1 Open X1 40 K14 Mixing Valve system 2 EP21 QN11 1 Close
61. necessary Super cooling Only cooling This is carried out by the heat pump Hot water produced by electric heater Hot water Only hot water is produced This is carried out by the heat pump Add heat only The heat pump is off and both hot water and heat is produced by the electric heater Menu 9 3 10 0 S Floor drying setting Settings for the floor drying program are made in the submenus to this menu Menu 9 3 10 1 S Floor drying On or Off is selected for the floor drying program from this sub menu After time period 1 a switch is made to time period 2 followed by a return to the normal settings Setting range Off On Default value Off Menu 9 3 10 2 S Period time 1 Selection of the number of days in period 1 Setting range 1 5 days Default value 3 days Menu 9 3 10 3 S Temp period 1 Selection of the flow temperature in period 1 Setting range 15 50 C Default value 25 C Menu 9 3 10 4 S Period time 2 Selection of the number of days in period 2 Setting range 1 5 days Default value 1 days Menu 9 3 10 5 S Temp period 2 Selection of the flow temperature in period 2 Setting range 15 50 C Default value 40 Menu 9 3 10 6 S Return Return to Menu 9 3 10 0 Control Control Menu 9 3 11 S Supply pump exer Pump operation can be deactivated here Pump is in operation for 2 minutes 12 hours after last operation Setting range Off On Default value
62. piping 15 88 9 52 Indoor unit connected 15 88 9 52 Connected indoor unit model HM270VS 3 Refrigerant pipe wall thickness and material Pipe diameter mm ES Select pipes having wall thickness larger than the specified minimum pipe thickness Select refrigerant pipes of the table shown on the right wall thickness and material as specified for each pipe size Minimum pipe wall thickness mm 0 8 1 0 Pipe material O type pipe O type pipe Phosphorus deoxidized seamless copper pipe C1220T JIS H3300 4 On site p ing work care so that installed pipes may not touch components within a unit If touching with ZNIMPORTANT an internal component it will generate abnormal sounds and or vibrations First remove the five screws gt lt mark of the service panel and push it down into the How to remove the service panel direction of the arrow mark and then remove it by pulling it toward you The pipe can be laid in any of the following directions side right front rear and downward Remove a knock out plate provided on the pipe penetration to open a minimum necessary area and attach an edging material supplied as an accessory by cutting it to an appropriate length before laying a pipe Carry out the on site piping work with the operation valve fully closed Give sufficient protection to a pipe end compressed and blazed or with an adhesive tape so that wa
63. sensor input Sensor does not work see Temperature sensor section Defective control PCB in FDCW100VNX Also see the troubleshooting guide on page 121 104 Service Alarm list Alarm no Alarm text on the display Description May be due to E40 HP alarm The high pressure sensor 63H1 deployed 5 times within 60 minutes or under 60 minutes continu ously Insufficient air circulation or blocked heat exchang er Open circuit or short circuit on input for high pressure sensor 63H1 Defective high pressure sensor Expansion valve not correctly connected Service valve closed Defective control PCB in FDCW100VNX Low or no flow during heating operation Defective circulation pump Also see the troubleshooting guide on page 122 E42 Inverter error Voltage from the inverter outside the parameters four times within 30 minutes Incoming power supply interference Service valve closed Insufficient amount of refrigerant Compressor fault Defective inverter PCB in FDCW100VNX Also see the troubleshooting guide on page 123 E45 Inverter error Communication between PCB for inverter and control PCB broken Open circuit in connection between PCBs Defective inverter PCB in FDCW100VNX Defective control PCB in FDCW100VNX Also see the troubleshooting guide on page 124 E48 Fan alarm Deviations in the fan speed in FDCW100VNX
64. temperature Check the operation data with NO logging tool protection control work properly YES Does the temperature external gauge correspond with the displayed temperature in the event NO Defective control PCB replace of an alarm YES Is the filter blocked Is the air circulation obstructed Is the installation space sufficient Is the heat exchanger dirty If the phenomenon persists Is the service valve on the water Open it line open YES Is the valve s QM3 lor QN11 Is the operation signal of the functioning properly valves outputted correctly YES YES Replace the valve s Is there clogging on the strainer on YES Clean up the strainer the water line NO Is air bleed done properly NO Bleed the air in the water line YES Is the circulation pump setting Set the appropriate value to 2 2 5 done properly obtain enough water flow If the phenomenon persists Is the operation signal of the pump Replace th outputted correctly PE kapa Replace the indoor unit relay board AA6 18 Service Troubleshooting guide E37 S fault Tho R Is the heat exchanger s temperature sensor Tho R1 R2 correctly connected 99 Are the characteristics of the heat exchanger s temperature sensor Tho R1 R2 OK NO Defective sensor replace YES Replace th
65. the hot gas sensor Tho RI R2 five times within 60 minutes or under 60 minutes Sensor does not work see Temperature sensor section Insufficient air circulation or blocked heat exchang er Defective control PCB in FDCW100VNX Too much refrigerant Also see the troubleshooting guide on page 117 E36 Permanent Hotgas Temperature deviation on the hot gas sensor Tho D two times within 60 minutes or under 60 minutes Sensor does not work see Temperature sensor section Blocked filter Insufficient air circulation or blocked heat exchang er If the fault persists during cooling there may be an insufficient amount of refrigerant Defective control PCB in FDCW100VNX Also see the troubleshooting guide on page 118 E37 S fault Tho R Sensor fault heat exchanger in FDCW100VNX Tho R Open circuit or short circuit on sensor input Sensor does not work see Temperature sensor section Defective control PCB in FDCW100VNX Also see the troubleshooting guide on page 119 E38 S fault Tho A Sensor fault outdoor air sensor in FDCW100VNX Tho A Open circuit or short circuit on sensor input Sensor does not work see Temperature sensor section Defective control PCB in FDCW100VNX Also see the troubleshooting guide on page 120 E39 S fault Tho D Sensor fault hot gas in FDCW100VNX Tho D Open circuit or short circuit on
66. to shift to the rotor position detection operation again at second time it judged the anomalous compressor start and the compressor stops Compressor startup failure is displayed and E59 is recorded in the Error Log and it enters the anomalous stop mode Pump down control It is possible to recover the refrigerant on the piping into the outdoor unit by this function Pump down operation starts when the following conditions are fulfilled a b 1 2 Within ten minutes since the operation mode is changed to Add heat only mode SWI on the outdoor unit PCB is pressed for 2 seconds Note Pump down operation doesn t start even though SWI is pressed for 2 seconds if more than 10 minutes has elapsed since the mode is changed to Add heat only In that case change the mode other than Add heat only and set again Control contents a Close the operation valve at the liquid side the operation valve at gas side should be left open b The compressor is started with the target speed frequency at 55rps in cooling mode c Redand green lamps LED flash continuously on the outdoor control PCB d Each of protection and error detection controls excluding the low pressure control is effective e Outdoor fan is controlled as usual f Electronic expansion valve is fully opened Control ending conditions Stop control is initiated depending on any of following conditions a Low pressure of 0 087MPa or lower is detected for 5 seconds
67. until T1 reaches 55 at minimum V1 must control the supply temperature at 65 C or lower Accumulators and primary system design are dimensioned by the boiler supplier Ensure that there is sufficient volume to prevent overheating System description External heat source Q as 1 Connected to X3 2 and X3 4 with the jumper wire on X3 2 3 removed For details see page 35 d E Alte I Gos V ol boiler c P lt PH lt Ee RM gt gt L FD1 BT30 V A Function HM270V engages additional heat source when the compressor output is not sufficient for the house demand When the additional heat source is connected valves QM 30 and QM31 shift to the heating system Valve QN11 shunts in the event of a heat demand on the flow line Hot water can be produced with the addifional heat source Max temp should be 65 C out from the gas fired boiler Control signal for additional heat source taken from terminal block X3 Jumper wire between X3 2 3 must be removed The control signal input is connected to terminal block X3 2 230V X3 4 N Menu 9 2 8 set to External Line 1 Alt 1 The gas boiler runs continuously HM270V controls the circulation pump Alt 2 Condensing gas boiler with internal circulation pump HM270V provides the gas boiler with start and stop signals NOTE Maximum current on the terminal block X3 is 0 4A System description
68. way valve 20S is energized during a heating operation Electric Doindoor outdoor connecting cables connect between the same terminal numbers When power supply is cut off to reset the unit give 3 minutes more before you turn on power again wiring after power is cut off If this procedure is not observed in turning on power again Communication error between outdoor and indoor unit may occur Are cables free from loose screws at their connection points Are cables held down with cable clamps so that no external force works onto terminal connections Doesn t cabling cross connect between units where more than one unit are installed Is the unit grounded with a dedicated grounding wire not connected to another unit s grounding wire 1 Test run method Refer fo the indoor unit installation manual 2 Checking the state of the unit in operation Check joint of the pipe Charge port of the gas operation valve Use check joints provided on the piping before and after the four way valve installed inside the outdoor unit for checking discharge pressure and suction pressure As indicated in the table shown on the right pressure detected at each point will vary depending on whether a cooling or heating operation has been selected Cooling Discharge pressure Suction pressure operation High pressure Low pressure Heating Suction pressure Discharge pressure operation Low pressure Hig
69. with the instruction manual Incorrect installation may cause bursts personal injury water leaks electric shocks and fire Use the original accessories and the specified components for installation If parts other than those prescribed by us are used It may cause water leaks electric shocks fire and personal injury installing in small rooms take prevention measures not to exceed the density limit of refrigerant inthe event of eakage Consult the expert about prevention measures If the density of refrigerant exceeds the limit in the event of leakage lack of oxygen can occur which can cause serious accidents Ventilate the working area well in the event of refrigerant leakage during installation If the refrigerant comes into contact with naked flames poisonous gas is produced After completed installation check that no refrigerant leaks from the system If refrigerant leaks into the room and comes into contact with an oven or other hot surface poisonous gas is produced Hang up the unit at the specified points with ropes which can support the weight in lifting for portage And to avoid jolting out of alignment be sure to hang up the unit at 4 point support An improper manner of portage such as 3 point support can cause death or serious personal injury due to falling of the unit Install the unit in a location with good support Unsuitable installation locations can cause the unit to fall and cause material dama
70. 0 8mm2 HS1 Filter dryer refrigerant bi flow 083 HW Sanitary hot water outlet MH RG10 Room sensor MH RG10 accessory QM30 Reversing valve hot water 2 way 35sec QM31 Reversing valve climate system 2 way 35sec Mixing valve 3 way ball type 35sec Hot water mode The heat pump prioritises hot water charging The compressor output is adjusted according to the outdoor temperature The circulation pump varies the flow to maintain a high charge temperature When the water heater is full the valves QM30 and QM31 switch to the heating system The heat pump is then controlled by a calculated set point value on the flow line The compressor varies the output according to the demand The circulation pump runs at a fixed set speed If the compressor does not manage the entire heat demand the electric heater is activated if it is allowed by setting and the heat shunted out on the flow line In the event of a cooling demand the heat pump is controlled by a calculated set point value on the flow line The compressor varies the output according to the demand The charge pump runs at a fixed set speed Heating mode QM30 Closed QM31 Open QN11 Active during balance point A QM30 Open QM31 Closed QNI1 Open AB Cooling mode QM30 Closed QM31 Open QN11 Open Installation requirements See page 69 System description Dual system heating and cooling
71. 1 N Offset cooling Total 2 3 U Max supply temp 2 2 2 N Cooling curve 2 2 3 0 U Own cooling curve 2 2 3 1 U Supply temp at 20 2 2 4 U Min supply cooling 2 2 3 2 U Supply temp at 40 2 2 3 3 U Return 2 2 5 U Circ pump speed cool 2 2 6 N Return 2 4 U External adjustment 2 5 U Supply Return temp 2 6 U Degree minutes 2 7 N Return 44 3 0 N Supply temp 2 3 1 N Offset heating Tot 2 3 2 N Heating curve 2 3 3 U Min supply temp 2 3 4 U Max supply temp 2 3 5 U External adjust 2 3 6 0 U Own heating curve 2 3 6 1 U Supply temp at 20 3 7 U Supply Return temp 2 3 6 2 U Supply temp at 20 3 6 3 U Buckling temperature 3 6 4 U Supply t at buckl 3 6 5 U Return 3 8 N Return 5 0 N Heat pump 5 1 N Number of starts 5 2 N Run time compressor 5 3 U Time to start 5 4 U Outdoor temp Tho A 5 5 U Heat Ex Tho R1 5 6 U Heat Ex Tho R2 5 7 U Suction temp Tho S 5 8 U Hot gas Tho D 5 9 U Liquid line temp 5 10 U Condensor out max 5 11 U HP 5 12 U LP LPT 5 13 U Fan speed 5 14 0 U CompFreq act set 5 14 1 U OU current CT 5 15 0 S OU communication 5 14 2 U Inverter temp Tho IP 5 14 3 U Return 5 15 1 S Com error r
72. 1 Since this unit contains 2 9kg refrigerant including the amount for piping of 12m it is not necessary to charge addifional refrigerant for piping on site charge refrigerant again to the system recover refrigerant from the system first and then charge the same volume as initial charge 2 Charging refrigerant Charge refrigerant always from the liquid side gas suction side service port while running the ui in the cooling mode or a dedicated conversion tool to change liquid phase refrigerant into mist charging refrigerant always charge a calculated volume by using a scale to measure the charge volume When refrigerant is charged with the unit being run complete a charge operation within 30 minutes Running the unit with an insu 8 Insulation on piping 1 Dress refrigerant pipes both gas and liquid pipes for heat insulation and prevention of dew condensation 2 Use a heat insulating material that can withstand 120 or a higher temperature Poor heat insulating capacity can cause heat insulation problems or cable deterioration Improper heat insulation anti dew dressing can result in a water leak or drippi high temperature due to discharged gas flowing inside during a heating operation Wrap indoor units flare joints with heat insulating parts pipe cover for heat insulation both gas and liquid pipes Give heat insulation to both gas and liquid side pipes Bundle a heat ins
73. 1 connects on X1 8 and X1 11 L2 connects on X1 9 and X1 11 L3 connects on X1 10 and X1 11 X1 11 is the common terminal block for the three current sensors OOOOOOOOOOOOOOOOO 1 213 415 6 718 9 15 16 17 AA22 X1 Connection of centralised demand control tariff In case centralised demand control or tariff control is used this can be connected to the terminal block X1 on the PCB AA22 Tariff A prohibits energizing immersion heater It is valid when 1 5 and X1 7 15 closed Tariff B prohibits heat pump operation It is valid when X1 6 and X1 7 is closed Tariff A and B can be used in combination Connecting external contacts MH RG 10 sensor for changing the room temperature An external sensor MH RG10 can be connected to HM270V to change the flow temperature and the target room temperature Connect the sensor to the terminal block from X4 1 to X4 3 on the PCB AA22 according to wiring diagram Activated in Menu 9 3 6 The target supply water temperature is adjusted according to the gap between actual room temperature and set room temperature The set room temperature is set using the knob on MH RG 10 and is shown in Menu 6 3 In addition the heating system to which the control is valid can be chosen in Menu 6 2 Contact for changing the room temperature An external contact such as a room thermostat or a timer can be connected to HM270V to change the flow temperature a
74. 11 functioning properly NO YES Is the operation signal of the valves outputted correctly YES Replace the valve s Is there clogging on the strainer YES Clean up the strainer on the water line NO Is air bleed done properly YES Bleed the air in the water line Is the circulation pump setting Set the appropriate value 2 2 5 done properly to obtain enough water flow If the phenomenon persists Is the min supply cooling setting Set the value higher so as not 2 2 4 too low to affect the room comfort If the phenomenon persists Is the operation signal m Renl ce th of the pump outputted correctly Space De Pp NO Replace the indoor unit relay board AA6 112 NO Plug in the connector surely If the phenomena persists NO Replace the indoor unit relay board AA6 8 High HW temp 9 High AH temp NO Peplace the sensor s Is the characteristics of the sensor BT6 BT19 correct YES Is there an external heat source YES Is the heat source correctly set NO Check the heart source Check the contactors QAI QA2 and replace if necessary 113 Service Troubleshooting guide Service Troubleshooting guide 10 High Supply temp 1 11 High Supply temp 2 NO Connect it correctly Is the supply water temperature sensor for the relevant system correctly connected YES
75. 2 U Max time for HW Here you select operation period for hot water of the period time 8 5 1 Setting range 0 60 min Default value 40 min Menu 8 5 3 U Return Return to Menu 8 5 0 Menu 8 6 N Return Return to Menu 8 0 Control Control 9 0 S Service menus Menu 9 1 0 S Heat pump settings Settings for FDCW100VNX are made in the sub menus to this menu Menu 9 1 1 S DM start heating Degree minute setting for start of heat pump heating Setting range 120 0 Default value 60 Menu 9 1 2 S DM start cooling Degree minute setting for start of heat pump cooling Setting range 0 120 Default value 60 Menu 9 1 3 S Stop Temp heat low Lowest limit of the heat pump s working range during heating It stops below this outdoor air temperature The heat pump is permitted to start again when the outdoor air temperature increases by two degrees above the set value Setting range 25 43 C Default value 25 Menu 9 1 4 S Stop Temp heat high Highest limit of the heat pump s working range during heating It stops above this outdoor air temperature The heat pump is permitted to start again when the outdoor air temperature decreases by two degrees below the set value Setting range 25 43 C Default value 43 Menu 9 1 5 S Stop temp cool low Lowest limit of the heat pump s working range during cooling It stops below this outdoor air temperature The heat pump
76. 5 43 C Menu 8 2 5 U Hysteresis See Menu 8 2 3 and Menu 8 2 4 Also affects control with room sensor Setting range 0 5 5 0 Default value 1 0 Menu 8 2 6 N Return Return to Menu 8 2 0 Menu 8 3 0 U Current limiter Settings and readings regarding the load monitor are set in the sub menus to this menu Menu 8 3 1 U Fuse size The setting selected on the PCB AA22 switch R24 is shown here Menu 8 3 2 U Max electric power The setting selected on the PCB AA22 switch R25 is shown here Menu 8 3 3 U Current phase 1 Measured current from phase 1 shown here If the value falls below 2 8 A low is displayed Menu 8 3 4 U Current phase 2 Measured current from phase 2 shown here If the value falls below 2 8 A low is displayed Menu 8 3 5 U Current phase 3 Measured current from phase 3 shown here If the value falls below 2 8 A low is displayed Menu 8 3 6 U Transform ratio EBV The transfer value must be defined depending on the current transformers used for the PCB Setting range 100 1250 Default value 300 Menu 8 3 7 U Return Return to Menu 8 3 0 Menu 8 5 0 U Period settings Time periods for heating and hot water production are set in the sub menus for this menu Menu 8 5 1 U Period time You can set the length of cycle time for water production and heating in case there is demand for both Setting range 5 60 min Default value 60 min Menu 8 5
77. 5 minutes in case the previous defrost operation is forcibly finished by indoor unit protection control and the cumulative compressor operation time after the start of heating operation has elapsed 30 minutes i After 5 minutes from the compressor ON After 5 minutes from the start of outdoor fan 25 20 45 10 5 56 M iv After satisfying all above conditions if the outdoor heat exchanger rud use temperature Tho R1 Tho R2 whichever the lower and the Fig 4 1 outdoor air temperature Tho A become lower than the defrosting 3 start temperature as shown in Fig 4 1 for 15 seconds continuously Or suction gas saturated temperature SST which is detected by the low pressure sensor LPT and the outdoor air temperature Tho A stay for 3 minutes within the temperature range lower than the defrosting operation start temperature as shown Fig 4 2 However it is not effective during 10 minutes after the start of compressor and if the outdoor air temperature is within the range of LPT invalid as shown in below figure LPT invalid 24 25 Z J LPT detecting 28 temperature for water system 25 20 18 15 10 5 0 56 10 2 4 Outdoor air temperature Tho A Outdoor air temperature Fig 4 2 20 lt Defrost operation start 23 temperature zone 25 27
78. 5x2 5mr Fuse 164 Connection on top Atta Powersupply 3x1l0mm2 Fuse 50 Connection on top Sx2 Smm2 Supply amp Communication Connection on top Function Tho S Tho D Sn OY gt 63H1 Tho R1 V 73 Defrost ANNA Heoting C 2 lt Tho R2 EEV H EEV C V R 54 lt i Heo ting Defrost L System description Radiators only heating 7 Heoting 395 radiator N Expansion vessel nin 14 N J Got included Pumpcopocity GP1 1 5 0 16 at 50kPa 0 28 at 42 0 39 ot 27kPa 0 5 ot 10kPo Systenrequirenent Systemvolume gt SOL 1001 if underfloor cooling is used Non restricted flow See technical data for more info The heat pump prioritises hot water charging The compressor output is adjusted according to the outdoor temperature The pps LS FLe Optional 1 Optional 4 Optional 5 Optional 6 Room sensor HW parts Extra system vol Flow relief valve O HW RGIO Fi FLI or CP1 Optional 7 Extra system pump GP10 T BP4 High pressure sensor 0 4 6MPa 5 Pressure gauge 0 4 Bar BTI Temperature sensor outdoor air external enclosed lt i BT2 Temperature sensor sup
79. 9 3 2 S Logger 9 3 3 S Cooling system 9 3 4 S Heating system 2 9 3 5 S Room unit 9 3 6 S Room sensor type 9 3 7 0 S Forced control 9 3 7 1 S Forced control Control Control 9 3 72 S 9 3 73 S K2 9 3 74 S K3 9 3 7 5 S K4 9 3 7 6 S K5 9 3 7 7 S K6 9 3 7 8 S K7 9 3 7 9 S K8 9 3 7 10 S K9 93 7 11 S K10 9 3 7 12 S K11 9 3 7 13 S K12 9 3 7 14 S K13 9 3 7 15 S K14 9 3 7 16 S Alarm 1 9 3 7 17 S Alarm 2 9 3 7 18 S Return 9 3 8 S Factory setting 9 3 9 S Operating state Control Control 9 0 S Service menus 9 4 S Quick start 9 3 10 0 S Floor drying setting 9 3 10 1 S Floor drying 9 3 11 S Supply pump exer 9 3 10 2 S Period time 1 9 3 10 3 S Temp period 1 9 3 10 4 S Period time 2 9 3 10 5 S Temp period 2 9 3 10 6 S Return 9 3 12 S Supply diff HP 9 3 13 S Diff HP add heat 9 3 14 S Block HW Heating 9 3 15 S Heat drop at alarm 9 3 16 S Type of HW sensor 9 3 17 S Freeze protection HX 9 3 18 S Return 9 5 0 S System info 9 5 1 S Heat pump type 9 6 0 S Heat reg settings 9 5 2 S Cpu usage percent 9 5 3 S Com rate 1000 9 5 4 S Unit w com problem 9 5 5 S Run time add heat
80. AA22 R24 II o o AA22 R25 AA22 R26 22 4 LJ _ o e Connecting the outdoor air sensor Install the outdoor air temperature sensor in the shade on a wall facing north or north west so it is unaffected by the morning sun Connect the sensor to terminal block X1 1 and 1 2 on the PCB AA22 via cable gland UB2 Use a 2 core cable of at least 0 5 mm If the outdoor air temperature sensor cable runs close to power cables shielded cable must be used If a conduit is used it must be sealed to prevent condensation in the sensor capsule Connecting the current limiter When many electrical appliances are connected in the property at the same time as the electric heater is operating there is a risk of the property s main fuse tripping HM270V is equipped with an integrated current limiter that controls the electrical steps and the compressor If necessary the electrical steps are disengaged and or the compressor frequency is reduced A current sensor should be installed on each incoming phase conductor in to the distribution box to measure the current The distribution box is an appropriate installation point Connect the current sensor to a multi core cable in an enclosure next to the distribution box Use unscreened multicore cable of at least 0 50 mm from the enclosure to HM270V In HM270V connect the cable to the PCB AA22 on terminal X1 8 11 L
81. Check Remarks Start temperature HW 12 47 22536 These settings should be adjusted based on the hot water load in the Stop temperature HW 1 3 53 property Setting is necessary when user use this function for larger hot water Extra hot water function see Item 5 demand of for disinfection 5 Extra hot water settings in case it is required Function Menu No Default value Set value Check Remarks Stop temperature XHW 1 4 65 C C Heat pump stop XHW 1 5 55 C Operable temperature range of the outdoor unit can be set Max heat p time XHW 1 6 30min _ min Total operable time of heat pump during XHW operation can be set ZEW Monday 7 4 1 f The setting is invalid when start time and stop time is set at the same Weekly timer based extra 747 00 00 00 00 ien time e g 22 00 22 00 hot water setting Interval XHW Periodic extra hot water 1 7 Odays days the interval of the extra hot water operation is set setting Control Start up and inspection Checklist Checks before commissioning Hot water Notes Checked Non return valve I
82. Dual system heating and cooling Heating QM30 Closed QM31 Open QN11 Active below balance point A QNI Open A Hotwatermode QM30 Open QM31 Closed QN11 Open AB Cooling QM30 Closed GM31 pen 11 Open AB GNIP Open B 208 63H1 CM CT EEV C EEV H FMol LPT Tho A Tho D Tho R1 Tho R2 Tho S 4 way valve Current sensor Fan motor Tho A High pressure switch Compressor motor Expansion valve cooling Expansion valve heating Low pressure sensor Temperature sensor outdoor air Temperature sensor hot gas Temperature sensor heat exchanger out Temperature sensor heat exchanger in Temperature sensor suction gas Outdoor unit Tho S Tho D Fancoil Tempcontrol MH RGI0 Required External to FC Foncontrol External to FC Drainage amp piping Insulation BTI ir CP1C Systemvolume gt at 50 kPa at 42 kPa at 27 kPa at 10 kPa A or 500 Non restricted flow 7 Cooling 0 16 0 28 FC 0 39 0 5 iF C 12 Ref Pipe R410a 5 8 3 8 Insulated max 12m Flare connections Connections on top Alt Powersupply 5x2 Smm2 Fuse 16A Connection on top Alte Powersupply 3x10mm2 Fuse 50 Connection on top 5x8 5mn Supply amp Communica tion Connection on top 63 1 Def Cool e ts Heating Tho Re EEV H EEV C 54 5 Function
83. External heat source Oil 1 Connected to X3 2 and X3 4 with the jumper wire on X3 2 3 removed For details see page 35 I E ee On off BTe4 Dit Pellets 9 P lt C DAHL RM O FD1 BT30 A Function HM270V engages additional heat source when the compressor output is not sufficient for the house demand When the additional heat source is connected valves QM 30 and QM31 shift to the heating system Valve QN11 shunts in the event of a heat demand on the flow line Hot water can be produced with the additional heat source Max temp should be 65 C out from the oil pellet boiler Control signal for additional heat source taken from terminal block X3 Jumper wire between X3 2 3 must be removed The control signal input is connected to terminal block X3 2 230V X3 4 N Menu 9 2 8 set to External Line 1 The oil fired boiler is started and stopped by external control HM270V controls the circulation pump NOTE Maximum current on the terminal block X3 is 0 4A System description External heat source Wood Accumulator Function By connecting a wood fired boiler via accumulator tank to HM270V hot water and heat to the house can be produced by it If there is no heat in the accumulator tank heat and hot water are produced by the heat pump or by internal electric heater according to the selected operating mode The wood installation must have an
84. F1 FA2 FAI BT30 FDI Explanation Symbol Type Scale length of conductor mm AA22 PCB UBI Cable gland UB2 Cable gland Xl Terminal block incoming mains supply 14 2 Terminal block outgoing supply and 9 communication X3 Terminal block external addition 9 SF1 Switch FAI Miniature circuit breaker control system FA2 Miniature circuit breaker outdoor unit BT30 Thermostat standby mode FD1 Temperature limiter Connecting the supply Incoming supply is connected on terminal block X1 via cable gland UBI The cable must be dimensioned according to the applicable norms HM270V can be connected with either 400 V 3NAC or 230 V 400 V Connect incoming supply according to the markings on terminal X1 230 V 1AC Install the supplied straps between terminals L1 and L2 as well as between L2 and L3 on incoming terminal block X1 Connect incoming supply according to the terminal markings 400 V 3NAC zidag f O O O O O O O L LIL2L3 ojoje LIL2L3 ru Miniature circuit bre
85. FOI el tay apy ee c i TEPA in T EP21 QN11T i Cooling Cooling EP21 BT3 EP21 BT3 Overflow valve External heat source Solar panels Wood fired boiler with accumulator Accumulator Wood fired Accumulator V1 boiler Gas boiler Oil pellet boiler Exhaust air heat pump r 1 VR r 1 r n 1 i ALT 2 1 On Off LLL eR re On Off F120 A boiler Oil pellets cpi2 PM PM Explanation BTI Temperature sensor outdoor EP21 QNI1 Shunt valve QN12 Shuttle valve for Cooling Heating CMI Expansion vessel 10 External Circulation pump RM Non return valve CPI Buffer vessel GP12 Circulation pump TI Temperature sensor EP21 BT2 Temperature sensor supply line 2 HQ Strainer VI Shunt valve EP21 BT3 Temperature sensor return 2 KF External control EP21 GPI10 Circulation pump for heating system 2 Circulation pump Installation Indoor unit installation Electrical installation General HM270V must be installed via an 1solator switch in accordance with the local codes and regulations Other electrical equipment except the outdoor sensors current transformers and outdoor unit FDCWI100VNX are ready connected at the factory m Disconnect the indoor unit HM270V and outdoor unit FDCWI100VNX before insulation testing the house wiring m For fuse ratings it
86. High return temp system 2 30 Sensor fault UG 31 S fault HP 32 Sensor fault condensor out 33 S fault Liquid line 34 S fault HW 35 S fault Add Heat 36 Sensor fault supply temp system 1 37 Sensor fault supply temp system 2 38 Sensor fault return temp system 1 39 Sensor fault return temp system 2 5 OU Com error E35 High HX temp E36 High hotgas E37 Sensor fault OU E38 Sensor fault OU E39 Sensor fault OU E40 HP alarm E41 Inverter error E42 Inverter error E45 Inverter error E48 Fan alarm E49 LP alarm E51 Inverter error E53 Sensor fault OU E54 LP alarm E57 Low refrigerant E59 Inverter error Menu 9 8 x 3 S Run status Menu 9 8 x 4 S Run status last Menu 9 8 x 5 S Run status time Menu 9 8 x 6 S Run time compressor Menu 9 8 x 7 S Outdoor avg 1min Menu 9 8 x 8 S Outdoor temp Tho A Menu 9 8 x 9 S Supply Return temp Menu 9 8 x 10 S Condensor out Menu 9 8 x 11 S Hot water temp Menu 9 8 x 12 S CompFreq act set Menu 9 8 x 13 S Heat Ex Tho R1 Menu 9 8 x 14 S Heat Ex Tho R2 Menu 9 8 x 15 S Suction temp Tho S Menu 9 8 x 16 S Hot gas Tho D Menu 9 8 x 17 S Liquid line temp Menu 9 8 x 18 S HP Menu 9 8 x 19 S LP LPT Menu 9 8 x 20 S OU current CT Menu 9 8 x 21 S Inverter temp Tho IP Menu 9 8 x 22 S Circ pump speed Menu 9 8 x 23 S Relay status 1 8 Menu 9 8 x 24 S Relay status 9 14 Menu 9 8 x 25 S Program status 1 8 Menu 9 8 x 26 S Program status 9 16 Menu
87. II Mixing valve QM30 Reversing valve hot water QM31 Reversing valve climate system HS1 Filter dryer refrigerant EB1 Immersion heater EP2 Heat exchanger 1 Circulation pump climate system HQI Particle water FL2 Safety valve tank BP5 Pressure gauge CW Sanitary cold water inlet HW Sanitary hot water outlet FDCW100VNX Tho A Tho D Tho R1 Tho R2 Tho S LPT 63 1 CT EEV C EEV H FMol 20S CM Temperature sensor outdoor air Temperature sensor hot gas Temperature sensor heat exchanger out Temperature sensor heat exchanger in Temperature sensor suction gas Low pressure sensor High pressure switch Current sensor Expansion valve cooling Expansion valve heating Fan motor 4 way valve Compressor motor Radiators only heating ing QM30 Closed QM31 Open QN11 Active below balance point A Hotwatermode M30 Open QM31 Closed Open AB 208 valve 63Hl High pressure switch CM Compressor motor CT Current sensor EEV C Expansion valve cooling EEV H Expansion valve heating FMol Fanmotor LPT Low pressure sensor Tho A Temperature sensor outdoor air Tho D Temperature sensor hot gas Tho R1 Temperature sensor heat exchanger out Tho R2 Temperature sensor heat exchanger in Tho S Temperature sensor suction gas utdoor unit 9 Ref Pipe R410a 5 8 3 8 Insulated max 12m Flare connections Connections on top Alt Powersupply
88. Manual No 09 HM T 133 TECHNICAL MANUAL AIR TO WATER HEAT PUMP INDOOR UNIT HM270V OUTDOOR UNIT FDCW100VNX RA MITSUBISHI HEAVY INDUSTRIES LTD Safety precautions For Home Owners Information about the installation Product information Features of Hydrolution Principle of operation Hydrolution Front panel indoor unit How to use the front panel Menu types Quick movement Key lock Language setting Comfort setting heating General Operating status Changing the room temperature manually Default Heating curve setting Readjusting the default settings Heating system 2 Vacation set back Comfort setting with room sensor Comfort setting cooling General Cooling operated from the outdoor sensor in operating mode AutoC Comfort setting hot water Available volume Prioritizing Extra Hot Water Maintenance Checking the safety valves in HM270V Pressure gauge in HM270V Emptying the hot water heater Emptying the vessel Maintenance of FDCW100VNX Saving tips Dealing with comfort disruption Operating mode Add heat only Emergency mode Alarm indications What happens in the event of an alarm Recommended actions Resetting alarms Installation Outdoor unit installation Haulage and installation Refrigerant piping work Drain pipi
89. On Menu 9 3 12 S Supply diff HP When the current supply water temperature deviates from the set value compared to that calculated the heat pump is forced to stop start irrespective of the degree minute value Heating mode If the current supply water temperature exceeds the calculated supply water by set value the degree minute number is set to 1 The compressor stops when there is only a heating requirement If the current supply water temperature drops below the calculated temperature by set value the degree minute number is overwritten to smaller value set in Menu 9 1 1 by 1 This means that the compressor will start Cooling mode the current supply water temperature drops below the calculated supply by set value the degree minute number is set to 1 The compressor stops when there is only a cooling requirement Setting range 3 25 Default value 10 C Menu 9 3 13 S Diff HP add heat If electric heater 15 permitted to use Menu 8 2 1 and the current supply water temperature falls below the calculated temperature by the set value plus the value from Menu 9 3 12 the degree minute value is overwritten to bigger value set in Menu 9 2 1 by 1 When the compressor has reached full speed the degree minute value is set to the value in Menu 9 2 1 and electric heater is permitted This means that the electric heater can cut in immediately Setting range 1 8 C Default value 3 C Menu 9 3 14 S Block HW Heat
90. PCB Temporary surge on incoming supply may have caused the alarm 125 Replace defective fan motor and YES Check the power supply Service Troubleshooting guide Service Troubleshooting guide E49 LP alarm Is the low pressure sensor correctly connected ea YES Check the value on the low pressure sensor via indoor unit in 1 stationary compressor 2 compressor operation Is the value around 0 MPa without NO significant change both in states 1 and 2 YES Check the insulation resistance on the low pressure sensor Is the resistance greater than 100 Replace the low pressure ohm at DC 500 V sensor Connect a pressure gauge to the low pressure pipe and measure in state 1 Compare with the value shown on the indoor unit Is the difference less than 0 2 MPa YES NO Connect a new low pressure sensor to the control PCB and position it open in the atmosphere Advance to checking the refrigerant circuit on the next page Is the pressure 0 MPa in the indoor unit NO Replace the control PCB Replace the low pressure sensor 126 Service Troubleshooting guide Cont d from previous page Are the service valves fully open NO Open the service valves YES Are the connections to the low pressure sensor and sensor for NO Connect it suction gas temperature OK YES Defective low pressure sensor
91. S Inverter temp Tho IP 9 8 x 22 S Circ pump speed 9 8 x 23 S Relay status 1 8 9 8 x 24 S Relay status 9 14 9 8 x 25 S Program status 1 8 9 8 x 26 S Program status 9 16 9 8 x 27 S Return 9 8 3 0 S Log 3 9 8 4 0 S Log 4 9 8 5 S Clear alarm log 9 8 6 S Return Control Control Main menus Menu 1 0 N Hot water temp The current hot water temperature in the vessel is shown here Figure on left shows the one in the middle and right one in brackets shows the one on the bottom Menu 2 0 N Supply temp The current supply temperature for the heating system is shown here with the calculated supply temperature in brackets Menu 3 0 N Supply temp 2 The current supply temperature for heating system 2 is shown here with the calculated supply temperature in brackets Menu 4 0 N Outdoor temp The current outdoor air temperature is displayed here Menu 5 0 N Heat pump The outdoor operation data are shown in the sub menus to this menu The following text appears in the display Text Means Off Shown when there is no compressor demand and none of the following apply On Shown during normal operation with the compressor Initiates Shown while the compressor is running Com problem Shown in the event of temporary communication problems Defrosting Shown during defrost Oil return Shown when the comp
92. X is shown here Menu 5 2 N Run time compressor The accumulated time that the compressor has been used in FDCW100VNX is shown here Menu 5 3 U Time to start Time until the compressor start in FDCW100VNX is shown in this menu Menu 5 4 U Outdoor temp Tho A This menu shows the outdoor air temperature that the heat pump measures Menu 5 5 U Heat Ex Tho R1 This menu shows the evaporator temperature in the heat pump at sensor Tho R1 Menu 5 6 U Heat Ex Tho R2 This menu shows the evaporator temperature in the heat pump at sensor Tho R2 Menu 5 7 U Suction temp Tho S This menu shows the suction gas temperature in the heat pump Menu 5 8 U Hot gas Tho D This menu shows the hotgas temperature in the heat pump Menu 5 9 U Liquid line temp This menu shows the liquid line temperature in the heat pump Menu 5 10 U Condensor out max Shows the current and max allowed temperature after the condenser Menu 5 11 U HP The current high pressure and corresponding temperature during heating are shown here During cooling the actual low pressure and corresponding temperature are shown Menu 5 12 U LP LPT The current low pressure is shown here Menu 5 13 U Fan speed The fan speed is shown here Menu 5 14 0 U CompFreq act set The actual and set point value for the compressor frequency are shown here Menu 5 14 1 U OU current CT The present phase current to FDCW100VNX is shown here Menu
93. ain fuses Possible earth circuit breaker tripped Reset the earth circuit breaker if the earth circuit breaker trips repeatedly call an electrician Switch SF1 set to mode 0 Set the switch to 1 Large hot water demand Wait a few hours and check if the hot water temperature rises Too low start temperature setting on the control system Adjust the start temperature setting in menu 1 2 Low room temperature Possible earth circuit breaker tripped Reset the earth circuit breaker if the earth circuit breaker trips repeatedly call an electrician Heat pump and immersion heater do not heat Check and replace any blown circuit and main fuses Incorrect setting of Heating curve offset and or Cooling curve offset Adjust the settings Check Menu 2 1 1 2 1 2 for heating system 1 3 1 3 2 for heating system 2 2 1 1 2 22 for cooling system Stop temp heating setting is too low Adjust the setting Check Menu 8 2 3 Circuit or main MCB tripped Check and replace blown fuses Heat pump in incorrect operating mode Hot water or Cooling Change operating mode to Auto or Au toC The current limiter has restricted the current because many power consumers are being used in the property Switch off one several of the power consu mers High room temperature Incorrect setting of Heating curve offset and or Cooling curve
94. aker FA1 FA2 The automatic heating control system circulation pumps and their wiring in HM270V are internally fuse protected with a miniature circuit breaker 1 Outdoor unit FDCW100VNX and equipment are internally fuse protected in HM270V with a miniature circuit breaker FA2 Temperature limiter FD1 The temperature limiter FD1 cuts the current supply to the electrical addition if the temperature rises up between 90 and 100 C and can be manually reset Resetting The temperature limiter FD1 is accessible behind the front cover The temperature limiter is reset by firmly pressing in its button NOTE Reset the temperature limiter it may have tripped during transport Installation Indoor unit installation Connection between HM270V and FDCW100VNX The cable between the units must be connected between terminal block for incoming supply TB in FDCW100VNX and terminal block X2 in HM270V via cable gland UB2 Cable holder Note m FDCWIOOVNX must be earthed before the wiring between the units is connected m The wiring must be attached so that the terminal block is not put under stress m Scale length of conductor is 8 mm Connect phase brown neutral blue communication black and grey as well as earth yellow green as illustrated FDCW100VNX 5x2 5 mm HM270V Main circuit breaker size setting R24 on AA22 Applicable only in case of 3 phase power supp
95. al heat source e g oil gas or pellets External circulation pump GP10 accessory Connect external circulation pump GP10 to terminal block X3 1 230 V X3 4 N and X3 5 PE Max output is 50W The circulation pump GP10 and EP21 GP10 is active when the circulation pump GP1 in HM270V is active NOTE Be sure to install flow relief valve when an external circulation pump is installed External mixing valve EP21 QN11 accessory Connection and function are described in the Installation instructions for accessory ESV 22 Shuttle valve cooling QN12 accessory Connection and function are described in the Installation instructions for accessory VCC 22 External heat source control HM270V can control an external heat source ON OFF control of the external heat source can be done by following settings 1 Remove the strap on terminal block X3 2 and X3 3 2 Connect the signal input line to terminal block X3 2 230 V and X3 4 N max 0 2 A 3 Set Ext 1 step in Menu 9 2 8 Installation Indoor unit installation Summary of the function of Current External sensor External the terminals on PCB AA22 pns p a for for system 1 Tariff A Tariff B L1 L2 L3 system 2 Outdoor air sensor Optional other than outdoor air sensor BT1 and current sensor L1 L2 and L3 X2 AA22 OO De XR3 Operation output R24 26 Oe COMO
96. alous stop mode Compressor stop Compressor operation 85 115 Discharge pipe temperature c Reset of anomalous stop mode When the discharge pipe temperature drops to the reset value of 85 C or lower for 45 minutes continuously it becomes possible to restart from controller Service Operation control function by the outdoor unit controller 2 Cooling high pressure protection a Protective control i When the outdoor air temperature Tho A is 40 C or higher and the outdoor heat exchanger temperature Tho R exceeds setting value the compressor speed frequency is controlled in order to suppress the rise of high pressure i The control value is updated to an optimum value automatically according to the operating conditions Reduce compressor speed at every 1minute Control value A Reset 54 60 Outdoor heat exchanger temperature b Anomalous stop control i Ifthe outdoor heat exchanger temperature Tho R exceeds the setting value the compressor stops H When the outdoor heat exchanger temperature anomaly is detected 5 times within 60 minutes 60 minutes continuously including the time of compressor stopping cooling overload error is displayed and E35 is recorded in the Error Log and it enters the anomalous stop mode Compressor stop Compressor operation 51 65 Outdoor heat exchanger temperature c Reset of anomalous stop mode When the outdoor heat exchanger te
97. anger in 10 s 62 2 90 Tho S Temperature sensor suction gas 5 D 65 0 9 81 3 38 Data for sensor in FDCW100VNX 762 3 09 Tho D 10 5 97 2 80 5 15 4 71 2 50 200 20 3 75 2 22 E 180 25 3 00 1 95 5 ul 30 242 1 70 120 35 1 96 1 47 D 40 1 60 1 27 60 45 1 31 1 09 Dod 50 1 08 0 94 20 60 0 746 0 70 0 20 40 60 80 100 120 140 160 C Temperature 70 0 525 0 51 133 Service Function check components Function check components HM270V Relay test forced control Control conditions Forced control of the relays can be carried out in Menu 9 3 7 0 Menu 9 3 7 1 must be selected to in order for the function to be activated Respective relay controlled by selecting 0 1 or dash for each relay in Menu 9 3 7 2 to 9 3 7 15 0 is not powered inactive 1 is voltage out active and means Auto i e the control system selects whether the output is active or inactive A AWARNING Forced control must only be used by users familiar with the system When forced control is activated the alarm functions are disabled Testing shunts Relay 2 and 3 are connected in series and used to control Three way valve Cooling heating Relays K4 and K5 are used to open and close mixing valve QN11 Therefore relays K4 and K5 must not be set to mode 1 at the same time To open the mixing valve select relay K4 to position 1 and relay KS to position 0 To close the
98. arm is displayed and E49 is recorded in Error Log at the first stop of compressor and it enters the anomalous stop mode 6 Compressor pressure ratio protection control During heating operation if the liquid line temperature of water heat exchanger BT15 Thi L or condensing satulated temperature CST whichever higher and the outdoor heat exchanger temperature Tho R exceed the setting value after 10 minutes from compressor ON the compressor speed frequency is controlled in order to protect compressor This control is not performed under the following conditions 1 Outdoor fan is stopped or 10 minutes has not elapsed since the outdoor fan starts 2 10 minutes has not elapsed since defrosting operation finishes a b Liquid line temperature of water heat exchanger Thi L or Condensing saturated Reduce compressor speed at every 1 minutes 68 50 C temperature CST C 0 150 0 280 Low pressure MPa Service Operation control function by the outdoor unit controller 7 8 9 10 11 12 Overcurrent protection current safe control T II Detecting the outdoor inverter output secondary side current if the current values exceed setting values the compressor speed frequency is controlled in order to protect the inverter Fig C The control value A and the reset value vary depending on the compressor speed Reduce compressor speed
99. aro cnim ea WT mE l x During Combined mode target supply water Actual 1 ter t P SUPP Y Water temp target temperature from heating curve temperature is set at 1K lower than the actual Time Outdoor unit is start operation at DM 9 1 1 Menu 9 1 1 sa ied at pee ace on SMe nr eck nee vL E C cR MPH HIN ON EIN AP qu ah i Sn S 60 Midpoint 380p m aes DM value cannot Man ma 230 decrease lower than Electrical heater is stopped Menu 9 2 1 setting value energizing at DM gt midpoint between Menu 9 1 1 and 9 2 1 Menu 9 2 1 ______ _ L SRE A t ee M Wa i Alternating mode 400 Electric heat a ieu a During Combined mode compressor and electric heater are controlled according 2 to the target tank water temperature that is either Target water temperature by DM value DM Menu 9 2 1 vee heating curve 2 C or HW end temperature whichever is higher Combined mode Water temperature Temperature gap gt 10K Temperature gap gt 10 3K Set on Menu 9 3 12 Set on Menu 9 3 12 and 9 3 13 Change DM value to Menu 9 1 1 minus 1 forcibly to operate the outdoor unit immediately Menu 9 1 1 60 be WO ST E Midpoint 2300 a a es ee z fu Se ae thr
100. ase that the operation finishes although the tank temperature doesn t reach the threshold For details see Hot water operation during alternating mode Pump speed is controlled so that higher temperature water can be returned to the tank Compressor speed control During the hot water operation compressor speed is controlled according to the map linked with the outdoor air temperature The map can be changed with the setting in Menu 1 11 3 and 1 11 4 CompFreq HW Menu 1 11 4 CompFreq at 5 C 80rps as default Menu 1 11 3 CompFreq at 20 C 40rps as default 5 C 20 C Outdoor air temperature C Hot water operation during alternating mode When there are demands for both hot water and heating the operation is switched between heating state and hot water state in order to cover both demands Operation time ratio between heating state and hot water state can be set in Menu 8 5 1 Period time and 8 5 2 Max time for HW Menu 8 5 2 shows the operation duration for hot water and the rest of the time Menu 8 5 1 8 5 2 is for heating As long as both heating and hot water demands remain in other words the conditions to finish both operations are not fulfilled both operations appear in turn according to the duration of which is set in the menu If either condition to finish heating or hot water operation is fulfilled another operation will be done thereafter unless both demands come up again Hot water operation during cooling mode T
101. ate 5 16 N Return 5 15 2 S Com errors 5 15 3 S Reset com errors 5 15 4 S Return Control Control 4 0 N Outdoor temp 4 1 N Outdoor avg temp 4 2 U Outdoor filter time 4 3 U Outdoor avg Imin 4 4 N Return 6 0 N Room temperature 6 1 U Room compensation 6 2 U Heating system 6 3 N Room temp setpoint 6 4 U Room temp avg Imin 6 5 U Room integrator time 6 6 N Return Requires accessory and activation in Menu 9 3 6 Control Control 7 0 N Clock 7 1 N Date 7 2 N Time 7 3 0 U Temp set back 7 3 1 U Set back time 7 3 2 0 Set back temp 7 3 3 U Heating system 7 3 4 U Return 7 4 0 U Extra hot water 7 4 1 U XHW Monday 7 4 2 U XHW Tuesday 7 4 3 U XHW Wednesday 7 4 4 U XHW Thursday 7 4 5 U XHW Friday 7 4 6 U XHW Saturday 7 4 7 U XHW Sunday 7 4 8 U Return 7 5 0 U Vacation set back 7 5 1 U Vacation begins 7 6 N Return 7 52 U Vacation ends 7 5 3 U Heating system 7 54 U Offset heating curve 7 5 5 U HW off 7 5 6 U Return 8 0 N Other adjustments 8 1 0 N Display settings 8 1 1 N Menu type 8 2 0 N Op mode settings 8 12 N Language 8 1 3 N Display contrast 8 14 N Light intensity 8 1 5 N Return 8 2
102. ater button is pressed and it is kept for 3 hours The operation is cancelled when the button is pressed again during the period The increased temperature is maintained by the electric heater until the period of time has expired Maintenance HM270V and FDCWI00VNX require minimal maintenance after commissioning Hydrolution contains many components and is why monitoring functions are integrated to help you If something abnormal occurs a message appears about malfunctions in the form of different alarm texts in display Checking the safety valves in HM270V HM270V has been equipped with a safety valve for the water heater as well as a safety valve for the climate system by the installer The climate system s safety valve The climate system s safety valve FL2 must be completely sealed Checks must be carried out regularly as follows m Open the valve m Check that water flows through the valve If this does not happen replace the safety valve m Close the valve again m The heating system may need to be refilled after checking the safety valve see the section Filling the heating system Hot water heater safety valve The water heater s safety valve sometimes releases a little water after hot water usage This is because the cold water which enters the heater to replace the hot water expands when heated causing the pressure to rise and the safety valve to open Also check the water heater safety valve re
103. ay valve SWI Crank case heater Solenoid valve Magnetic contactor Function DIP switch SW3 Switch Function Factory setting SW3 1 Defrosting OFF SW3 2 Snow guard for fan OFF 136 Service Component replacement Component replacement HM270V FDCW100VNX 137 Service Component replacement FDCW100VNX Fan and fan motor FM01 1 Remove the four screws and then the fan grille 4 screws 2 Remove the nut and then the fan propeller 3 Disconnect contact CNFANI 4 Detach the five clamps and cut off both straps 2 straps 138 Service Component replacement Fan and fan motor FM01 5 Remove the four screws 6 Remove the fan motor Compressor CM 1 Remove the service hatch top panel and front hatch 4 screws short 2 Remove the four short and four long screws 3 Remove the panel with the ser vice valves 139 Service Component replacement Compressor CM 4 Remove the nine short and one long screw 5 Remove the side panel and the rear panel Rear panel 1 screw long 7 screws short 2 screws short 6 Remove the top section of the compressor insulation 7 Remove the nut and remove the connection protection
104. balance point A Dptionol 1 Optional 4 Optional 5 Optional 6 Room sensor HW ports Extra system vol Flow relief valve 8 cw HW i Fat Required 8 Required 7 9 Extra system pump Gry wil Fioorcooling GP10 1 BP4 High pressure sensor 0 4 6MPa BPS Pressure gauge 0 4 Bar BTI Temperature sensor outdoor air external enclosed BT2 Temperature sensor supply BT3 Temperature sensor heat exch in Twin BT6 Temperature sensor tank water 2 Temperature sensor heat exch Twout 5 Temperature sensor liquid pipe Thi L BTI9 Temperature sensor immersion heater BT24 Temperature sensor external heat source BT30 Thermostat standby mode 35 45 C adjustable CMI Expansion vessel CPI Buffer vessel cw Sanitary cold water inlet EBI Immersion heater 9kW 3 EP2 Heat exchanger FDI Temperature limiter 98 C FLI Safety valve HW FL2 Safety valve tank 2 5 Bar FOI Mixing valve HW GPI Circulation pump climate system variable flow GP10 Circulation pump external 1 Strainer water 0 8mm2 HS1 Filter dryer refrigerant bi flow 083 HW Sanitary hot water outlet MH RG10 Room sensor MH RG10 accessory QM30 Reversing valve hot water 2 way 35sec QM31 Reversing valve climate system 2 way 35sec Mixing valve 3 way ball type 35sec Hot water mode M30 Open M31 Closed N11 Open AB
105. bleshooting guide on page 130 E57 Low refrigerant Insufficient refrigerant is detected at initial startup Service valve closed Loose connection of sensor BT15 Defective sensor BT15 or BT3 Insufficient amount of refrigerant Also see the trouble shooting guide on page 131 E59 Inverter error Compressor fails to startup for 14 times Defective outdoor fan motor 7 patterns x 2 times Defective inverter PCB in FDCW100VNX Compressor fault Incoming power supply interference Also see the trouble shooting guide on page 132 Hot water alarm The following alarms block hot water production via FDCW100VNX The additional heat source is blocked completely Alarm Alarm text on the Description May be due to no display 8 High HW temp Too high temperature gt 90 C on hot water sensor Contactor to internal electric heater defective Incorrect external heat source setting Also see the troubleshooting guide on page 113 9 High AH temp Too high temperature gt 90 C on immersion heater Contactor to internal electric heater defective sensor BT19 Incorrect external heat source setting Also see the troubleshooting guide on page 113 34 S fault HW Sensor fault hot water BT6 Open circuit or short circuit on sensor input Sensor does not work see Temperature sensor section Also see the troubleshooting guide on page 116 35 S fault AH Sensor
106. by holding in the operating mode button for 7 seconds Set the date and time in Menu 7 1 and 7 2 Select Service in Menu 8 1 1 Select addition type in Menu 9 2 8 Set the fuse size on knob R24 Check the value in Menu 8 3 1 9 Setthe max immersion heater output on knob R25 Check the value in Menu 8 3 2 DOs cr py un 10 Select the desired heating curve in Menu 2 1 2 and set the parallel offset using the knob Installation Start up and inspection Checking external heat source controlled by the signal from HM270V 1 Check if the signal wire is connected as instructed 2 Select Ext 1 step in Menu 9 2 8 3 Select operating mode heat only by holding in the operating mode button for 7 seconds 4 Ensure that the max temperature from the external heat source does not exceed 65 5 Select operating mode Auto by pressing the operating mode button Checking external heat source controlled independently 1 Adjust the start temperature of the external heat source so that it starts earlier than the internal electric heater 2 Adjust the stop temperature of the external heat source so that the temperature in HM270V does not exceed 65 C Inspection of the installation Current regulations require the heating installation to be inspected before it is commissioned The inspection must be carried out by a suitably qualified person and should be documented Use the check list on the f
107. cted external addition System description Principle of operation Heating operation mode Alternating mode When the heat load can be covered by the capacity of outdoor unit 100 of hot water from water heat exchanger goes to radiator Hot water in the tank is not used Water pump runs at constant speed set at commissioning Y When the water temperature in tank drops due to sanitary L water use the operation is switched to Hot water operation mode QN11 B BA100 Counterflow in water heat exchanger EP2 QM30 closed Electric heater is not energized Heating operation mode Combined mode When the heat load cannot be covered by the capacity of outdoor unit If the heat load is big and outlet water temperature of water heat exchanger does not reach target water temperature hot water from water heat exchanger goes to tank partially and hot water in the tank warmed with electric heater comes into Heating radiator the radiator circuit in order to adjust the hot water temperature m to reach target water temperature Opening degree of 3 way valve is adjusted by watching Cy ww temperature with BT2 l s Water pump runs at constant speed set at commissioning Counterflow in water heat exchanger EP2 D Electrical heater is energized System description Principle of operation Hot water operation mode Heating radiator
108. ctions Menu 1 0 the temperature in the water heater is normally shown on the display The plus and minus buttons and the enter button are Ww used to scroll through the menu system as well as to p change the set value in some menus YY Q Menu types Menu 8 1 1 Control is classified into different menu types depending on how deep into the controls you need to go Normal N The settings you as customer often need Extended U Shows all detailed menus except the service menus Service S Shows all menus Changing of menu type is done from Menu 8 1 1 Quick movement To quickly return to the main menu from a sub menu press the following button 3 Key lock A key lock can be activated in the main menus by simultaneously Q9 ressing the and the buttons The key symbol will pU wy then be shown on the display T The same procedure is used to deactivate the key lock Language setting Menu 8 1 2 Language used in the display can be chosen in Menu 8 1 2 For Home Owners Front panel indoor module For Home Owners Comfort setting heating Comfort setting heating General The indoor temperature depends on several factors m Sunlight and heat emissions from people and household machines are normally sufficient to keep the house warm during the warmer parts of the year m When it gets colder outside the heating system must be started The colder it 1s outsid
109. ded actions and reduce the supply temperature to the minimum permitted TES E 1 Read off which alarm has occurred from the heat pump s temperature to notify you that something is wrong display 2 Asa customer you can rectify certain alarms See the table below for relevant actions If the alarm is not rectified or is not included in the table contact your installer Alarm text on the display Alarm description Check remedy before installers service technicians are called LP ALARM Tripped low pressure sensor Check that the thermostats for the radiators under floor systems are not closed HP ALARM Tripped high pressure sensor Check that the thermostats for the radiators under floor systems are not closed OU power failure OU Com error Outdoor unit not powered Communication Check that any circuit breakers to the outdoor cut unit are not off Display not lit Check and replace any blown circuit and main fuses Check that the circuit breakers to the indoor unit are off Check that the switch SF1 is in normal posi tion 1 Resetting alarms No harm in Resetting an alarm If the cause of the alarm remains the alarm recurs m When an alarm has been triggered it can be reset by switching HM270V off and on using the switch SF1 m When the alarm cannot be reset using the switch SF1 the operating mode Add heat only can be activated to resume a normal temperature level in the house This
110. der the control of compressor protection start during cooling operation the following control is performed by detecting the liquid line temperature of indoor unit BT15 Thi L and inlet water temperature BT3 Twin Control condition When the state that the temperature of indoor unit water heat exchanger Thi R Thi L does not become lower than the inlet water temperature BT3 Twin by 4 degC or more for 1minute continuously It judges that the flowing of refrigerant into the indoor unit is insufficient so that the compressor is stopped and insufficient refrigerant amount error is displayed and E57 is recorded in the Error Log Control contents 100 Service Operation control function by the outdoor unit controller 13 Broken wire detection on temperature thermistor and low pressure sensor a Outdoor heat exchanger temperature thermistor outdoor air temperature thermistor and low pressure sensor If the following is detected for 5 seconds continuously within 2 minutes to 2 minutes 20 seconds after the compressor ON the compressor stops After a delay of 3 minutes the compressor restarts but if the same anomaly is detected repeatedly 3 times within 40 minutes the compressor stops with the anomalous stop mode Outdoor heat exchanger temperature thermistor Tho R1 R2 50 C or lower Outdoor air temperature thermistor Tho A 30 C or lower Low pressure sensor LPT 0Volt or lower or 3 49 Volt or higher Note During d
111. e BP5 will show rising pressure 4 When the pressure has reached about 2 5 bar a mix of air and water starts to emerge from the safety valve FL2 Close the filling valve Venting the climate system Vent HM270V through the safety valve FL2 venting screws QM20 and the rest of the heating system through the relevant venting valves Keep topping up and venting until all air has been removed and the correct pressure has been obtained Filling the hot water coil The hot water coil is filled by opening a hot water tap Commissioning FDCW100VNX 1 Check that the miniature circuit breaker FA2 in HM270V is on HM270V 1 Check that the temperature limiter FD 1 has not tripped OO SONS eR 11 12 13 Switch on the main circuit breaker and check that the miniature circuit breaker FA1 in HM270V is on Set switch SF1 to 1 the switch shoud be switched on for 6 hours before the compressor can be started When switch SF1 is set to 0 wait at least 1 minute before setting it back to 1 Select operating mode heat only by holding in the operating mode button for 7 seconds Set the date and time in Menu 7 1 and 7 2 Set the language in Menu 8 1 2 Select Service in Menu 8 1 1 Select additional heat source type in Menu 9 2 8 Set the fuse size on knob R24 Check the value in Menu 8 3 1 Set the max immersion heater o
112. e the warmer radiators and under floor heating systems must be Controlling heat production Normally the heat pump heats the water heating medium to the temperature required at a certain outdoor temperature This occurs automatically on the basis of the collected temperature values from the outdoor sensor and sensors on the lines to the radiators Supply water sensors Extra accessories such as room sensors can influence the temperature In order to operate the system properly the correct settings must be made on the heat pump first see the section Default Heating curve setting The outdoor sensor mounted on an exterior wall of the house senses variations in the outdoor temperature early on sends the information to the heat pump control computer and heating operation is started It does not have to be cold inside the house before the control system is activated As soon as the temperature drops outside the temperature of the water to the radiators supply temp inside the house is increased automatically The heat pumps flow temperature Menu 2 0 will hover around the theoretical required value which is in brackets on the display Temperature of the heating system The temperature of the heating system in relation to the outdoor temperature can be determined by you by selecting a heat curve and by using the Offset heating curve knob on the heat pump s front panel Operating status The Operating mode button i
113. e control PCB 119 Service Troubleshooting guide E38 S fault Tho A Is the outdoor sensor Tho A correctly connected NO Connect it correctly YES Are the characteristics of the outdoor sensor Tho A OK NO Defective sensor replace YES Replace the control PCB 120 Service Troubleshooting guide E39 S fault Tho D Is the hot gas sensor Tho D correctly connected NO Connect it correctly YES Are the characteristics of the hot gas sensor Tho D OK NO Defective sensor replace YES Replace the control PCB 121 Service Troubleshooting guide E40 HP alarm If the voltage supply to the outdoor unit is switched off and on too quickly E40 may be displayed This is normal Are the service valves fully open NO Open the service valves YES Has the high pressure switch Is the high pressure switch NO 63H1 been activated 63H1 correctly connected YES YES 1 During cooling Is the electronic expansion valve NO Connect the EEV correctly Does the fan motor run correctly connected NO Connect the switch correctly Is the air flow obstructed Is the installation space sufficient YES 2 During heating Is the indoor module s sensor for Defective control PCB replace the heat exchanger correctly connected Is the filter blocked St
114. e diagram Installation Indoor unit installation Connecting the hot water heater The water heater in the HM270V must be supplied with necessary set of valves m There must be a mixing valve if the temperature exceeds 60 C m The safety valve must have a maximum 10 0 bar opening pressure and be installed on the incoming domestic water line according to outline diagram The entire length of the overflow water pipe from the safety valves must be inclined to prevent water pockets and must also be frost proof m See section Dockings on page 27 for outline diagram Extra electric hot water heater The heat pump should be supplemented with an electric water heater if a hot tub or other significant consumer of hot water is installed VALVE CONNECTION SPLIT HW FROMHEATPUMP PLUGGING NON RETURN VALVE HW MIXINGVALVE SPLIT VALVE CONNECTION SPLIT MIXINGVALVE SPLIT Connection of external heat source Connect an external heat source such as gas or oil boiler to XL8 in and XL9 out on HM270V dimension G1 internal To use these connections the corresponding Punchout parts in the outer panel must be removed Also cut off the insulation above the connections Tapered screw G1 Tapered screw G1 Waste exchanger part HM270V has a waste at the exchange section A hose routes any waste wa
115. e form of the internal immersion heater or any connected external heat source For Home Owners Front panel indoor module Front panel indoor unit Addition heat symbol Hot water symbol If the electrical addition is connected Hot water charging in progress Electrical step 1 A Temporary Extra hot water operation in Electrical step 2 progress TI Electrical step 1 2 B Time based Extra hot water operation in III Electrical step 3 progress e g periodic Compressor symbol Circulation pump symbol Compressor is operational Heating mode B Cooling mode With two circulation pumps requires ESV 22 accessory the operating pump is also indicated Circulation pump in operation Operating status Button pressing the change does not need to be confirmed with the enter button Current operating mode shown in display Further button press changes operating mode Press the enter button to return to the normal display mode Heating system symbol W Heating in progress Description of current display For information about the various operating parameter modes see the different sections regarding comfort settings Information symbols 1 0 Menu number nii Extra hot water XHW Extra hot water operation starts with this button The operation is cancelled when the button is pressed again The change does not need to be confirmed
116. e of outdoor air temperature Menu 8 2 4 Threshold value of outdoor air temperature Menu 8 2 3 Hysteresis Menu 8 2 5 Mode transition by outdoor air temperature Mode transition in Auto AutoC mode with room sensor MH RG10 used When MH RG10 is installed in the system mode is decided not only by outdoor air temperature but also by in combination with the gap between actual room temperature BT50 and set room temperature The set value of start temp cooling can be smaller than that of stop temp heating In this case heating and cooling operation will be change over directly at the threshold value for cooling on Menu 8 2 4 8 2 5 Indoor air temperature Hot water Hot water Hot water stop heating Auto mode Cooling Super cooling Menu 8 2 5 AutoC mode only Hysteresis Set temperature of MH RG10 Menu 8 2 5 Hysteresis Hot water stop cooling Menu 8 2 3 Menu 8 2 4 Outdoor air temperature Stop temp heating Start temp cooling with Hysteresis with Hysteresis Mode transition when MH RG10 is used The required indoor temperature can be set using the knob on MH RG1O The set temperature can be seen in Menu 6 3 Service Operation control function by the indoor unit controller Exceptional case of mode transition In order to prevent water pipes on the system from freezing there is some exception of mode transition when the outdoor air temperature BT1 drops below 0 C 1 In 4 Cooling or 5
117. e this function if installing the unit in snowing region b Control contents i It allows entering defrosting operation when the cumulative heating operation time has elapsed 30 minutes under the defrost condition A It is 37 minutes at SW3 1 OFF factory default ii It allows entering defrosting operation when the cumulative heating operation time has elapsed 20 minutes under the defrost condition B It is 30 minutes at SW3 1 OFF factory default iii It allows entering defrosting operation when the outdoor heat exchanger temperature Tho R and the suction pressure saturated temperature SST are higher than normal Protective control anomalous stop control by compressor speed frequency 1 Compressor discharge pipe temperature protection a Protective control If the discharge pipe temperature detected with Tho D exceed the setting value the compressor speed frequency is controlled in order to suppress the rise of discharge pipe temperature Reduce compressor speed at every 1minute Retention Release 100 105 Discharge pipe temperature b Anomalous stop control 1 Ifthe discharge pipe temperature detected with Tho D exceed the setting value the compressor stops ii When the discharge pipe temperature anomaly is detected 2 times within 60 minutes or 60 minutes continuously including the time of compressor stopping discharge pipe temperature error is displayed and E36 is recorded in Error Log and it enters the anom
118. eep into the controls you need to go Normal N The settings you as a customer often need Extended U Shows all detailed menus except the service menus Service S Shows all menus Menu management The Plus button is used to move forward to the next menu on the current menu level and to increase the value of the parameter in menus where this is possible The Minus button is used to move back to the previous menu on the current menu level and to decrease the value of the parameter in menus where this is possible The Enter button is used to select submenus of the current menu to permit parameters to be changed and to confirm any changes to parameters When the menu number ends with a zero this indicates that there is a submenu Changing parameters In order to change a parameter value 1 2 Access the required menu Press o button the numerical value starts to flash Increase or decrease using o or buttons J Confirm by pressing N button Menu 1 0 is automatically displayed again 30 minutes after the last button is pressed Example Changing the heating curve Menu 2 1 1 2 Press Press Change the value by pressing or Press The starting point is Menu 1 0 Press button to move to Menu 2 0 button to move to Menu 2 1 button to change the value buttons Confirm the selected value by pressing o button
119. efrosting operation and for 3 minutes after the end of defrosting operation this control is not performed b Discharge pipe temperature thermistor suction pipe temperature thermistor If the following is detected for 5 seconds continuously within 10 minutes to 10 minutes 20 seconds after the compressor ON the compressor stops After a delay of 3 minutes the compressor restarts but if the same anomaly is detected repeatedly 3 times within 40 minutes the compressor stops with the anomalous stop mode Discharge pipe temperature thermistor Tho D 10 C or lower Suction pipe temperature thermistor Tho S 50 C or lower Note During defrosting operation and for 3 minutes after the end of defrosting operation this control is not performed 14 Fan motor error a Ifthe outdoor fan speed is detected 100rpm or lower for 30 seconds continuously under the outdoor fan control mode with the operation command of fan speed 390rpm or higher the compressor stops b When the outdoor fan speed drops to 100rpm or lower 5 times within 60 minutes and the compressor stops Fan alarm is displayed and E48 is recorded in the Error Log and it enters the anomalous stop mode 15 Anomalous stop by the compressor start stop a When it fails to shift to the rotor position detection operation of compressor DC motor during 5 seconds after establishing the compressor start condition the compressor stops temporarily and restarts 3 minutes later b If it fails
120. ences and handrails around the outdoor unit Q If safety facilities are not provided it can cause personal injury due to falling from the installation place Do not use the indoor unit at the place where water splashes may occur such as in laundries Q Since the indoor unit is not waterproof it can cause electric shocks and fire Do not install nor use the system close to the equipment that generates electromagnetic fields or high frequency harmonics Q Equipment such as inverters standby generators medical high frequency equipments and telecommunication equipments can affect the system and cause malfunctions and breakdowns The system can also affect medical equipment and telecommunication equipment and obstruct its function or cause jamming Do not install the outdoor unit in a location where insects and small animals can inhabit Q Insects and small animals can enter the electric parts and cause damage or fire Instruct the user to keep the surroundings Do not use the base flame for outdoor unit which is corroded or damaged due to long periods of operation Q Using an old and damage base flame can cause the unit falling down and cause personal injury Do not install the unit in the locations listed below Q Locations where carbon fiber metal powder or any powder is floating Locations where any substances that can affect the unit such as sulphide gas chloride gas acid and alkaline can occur Vehicles and ships
121. esent the menu can be set to Off System 1 System 2 or System 142 In other cases only and System 1 can be selected Setting range Off System 1 System 2 System 1 2 Default value Off Menu 7 5 4 U Offset heating curve How much the heating curve is to be offset during the holiday period is set here If the relevant heating system has a room sensor the change is given in degrees Setting range 10 10 Default value 5 Menu 7 5 5 U HW off You can choose if hot water operation is cancelled during the holiday period Setting range No Yes Default value Yes Menu 7 5 6 U Return Return to Menu 7 5 0 Menu 7 6 N Return Return to Menu 7 0 Control Control 8 0 N Other adjustments Menu 8 1 0 N Display settings Settings concerning language and menu type are set in the sub menus to this menu Menu 8 1 1 N Menu type The menu type is chosen here N Normal covers the normal user s needs U Extended shows all menus except the service menus S Service shows all menus returns to normal menu level 30 minutes after the last button was pressed NOTE Incorrect settings in the service menus can damage the property and or heat pump Setting range N U S Default value N Menu 8 1 2 N Language Language settings are made here Menu 8 1 3 U Display contrast The display s contrast is set here Setting range 0 31 Default value 0 Me
122. fault immersion heater BT19 Open circuit or short circuit on sensor input Sensor does not work see Temperature sensor section Also see the troubleshooting guide on page 116 106 Service Alarm list Supply alarm The following alarms switch off heating cooling Only hot water production is permitted Alarm Alarm text on the Description May be due to no display 10 High VBFI Too high temperature 790 C on flow line sensor Sensor does not work see Temperature sensor system 1 BT2 section Also see the troubleshooting guide on page 114 11 High VBF2 Too high temperature 790 C on flow line sensor Sensor does not work see Temperature sensor system 2 section Also see the troubleshooting guide on page 114 30 Sensor fault UG Sensor fault outdoor temperature BT1 Open circuit or short circuit on sensor input Sensor does not work see Temperature sensor section Also see the troubleshooting guide on page 116 36 Sensor fault VBF1 Sensor fault supply system1 BT2 Open circuit or short circuit on sensor input Sensor does not work see Temperature sensor section Also see the troubleshooting guide on page 116 37 Sensor fault VBF2 Sensor fault supply system 2 Open circuit or short circuit on sensor input Sensor does not work see Temperature sensor section Also see the troubleshooting guide on page 116 107 Service
123. fixed set speed Extra shunt EP21 QN11 lowers the temperature on system 2 according to settings in HM270V If the compressor does not manage the entire heat demand the electric heater is activated if it is allowed by setting and the heat shunted out on the flow line During cooling the valve QN12 switches to the cooling system The heat pump is then controlled by a calculated set point value on the flow line The compressor varies the output according to the demand The circulation pump runs at a fixed set speed Hot water mode QM30 Open QM31 Closed QNI1 Open AB Cooling mode QM30 Closed QM31 Open QN11 Open AB QNI2 Open Installation requirements See page 69 System description External heat source External heat source Sun TE 1 QM30 X ou cet EN AM Solar collector NN M Accumulator NJ Ex T6 BT24 T19 E 1 X 0o FDL BT30 jd ST KF 1 Function By connecting a solar heat collector via intermediate heat exchanger to HM270V the solar heat can produce hot water and heating for the house If the solar panel does not produce the necessary heat HM270V with the compressor or with internal immersion heater heats The solar panel must have an external automatic control device KF as follows P1 should stop when BT24 senses 65 at maximum P1 shouldn t start
124. force strength against the pressure for R410A Accordingly the dedicated tools for R410A listed in the below mentioned table should be prepared for installation and servicing Do not use charging cylinder Using charging cylinder may alter the composition of refrigerant which results in making the performance of the system worse Refrigerant must be charged always in liquid state from the bottle Dedicated tools for R410A a Gauge manifold b Charge hose 1 1 1 d Torque wrench Fareto Vacuumpumpadaper For Home Owners For Home Owners Information about the installation Product information Hydrolution is a complete modern heat pump system that offers effective technical energy saving and reduced carbon dioxide emissions Heat production is safe and economical with integrated hot water heater immersion heater circulation pump and climate system in the indoor unit The heat is retrieved from the outdoor air through outdoor unit FDCW100VNX where the refrigerant circulated in a closed piping system transfers the heat from the heat source outdoor air to indoor unit HM270V This eliminates the for holes and coils in the ground Features of Hydrolution m Optimal annual heating factor thanks to the inverter controlled compressor Outdoor unit with compact dimensions Speed controlled system pump that supplies the heat pump with suitable system fl
125. g measures are required from the packaging 4 The bottom plate of unit and intake outlet may be blocked by snow When some compelling reason necessitates the unpacking of the unit before it 1 Install the unit on the base so that 2 Provide a snow hood to 3 Install the unit under is carried in use nylon slings or protective wood pieces so as not to damage the bottom is higher than snow cover the outdoor unit on site eaves or provide the roof the unit by ropes lifting it Regarding outline of a snow on site hood refer to our technical 2 Portage e manual The right hand side of the unit as viewed from the front diffuser side is heavier Ni lt 5 person carrying the right hand side must take heed of this fact A person carrying the left hand side must hold with his right hand the handle provided on the front panel of the unit and with his left hand the corner column section K lt 3 Selection of installation location for the outdoor unit Be sure to select a suitable installation place in consideration of following conditions Since drain water generated by defrost control may freeze following measures are required AD i me 3 Don t execute drain piping work by using a drain elbow and drain grommets optional parts Refer to A place where it is horizontal stable and can endure the unit weight and will not allow vibration transmittance of the unit Drain piping work O A place where it can be free from possibil
126. ge and personal injury Ensure the unit is stable when installed so that it can withstand earthquakes and strong winds Unsuitable installation locations can cause the unit to fall and cause material damage and personal injury Ensure that no air enters in the refrigerant circuit when the unit is installed and removed If air enters in the refrigerant circuit the pressure in the refrigerant circuit becomes too high which can cause burst and personal injury The electrical installation must be carried out by the qualified electrician in accordance with the norm for electrical work and national wiring regulation and the system must be connected to the dedicated circuit Power supply with insufficient capacity and incorrect function done by improper work can cause electric shocks and fire Be sure to shut off the power before starting electrical work Failure to shut off the power can cause electric shocks unit failure or incorrect function of equipment Use the prescribed cables for electrical connection tighten the cables securely in terminal block and relieve the cables correctly to prevent overloading the terminal blocks Loose connections or cable mountings can cause anomalous heat production or fire e Arrange the wiring in the control box so that it cannot be pushed up further into the box Install the service panel correctly a aa M may result in overheating and fire
127. gularly The appearance and location of the safety valve differs between different installations Contact your installer for information Pressure gauge in HM270V The working range of the heating system is normally 0 5 1 5 bar when the system 15 closed Check this on the pressure gauge BP5 Emptying the hot water heater The water heater is of the coil type and is drained using the siphon principle This can be done either via the drain valve on the incoming cold water pipe or by inserting a hose into the cold water connection For Home Owners Maintenance Emptying the vessel Contact your installer if the vessel in HM270V needs emptying Maintenance of FDCW100VNX FDCWI100VNX is equipped with control and monitoring equipment however some exterior maintenance is still necessary Make regular checks throughout the year that the inlet grille is not clogged by leaves snow or anything else During the cold months of the year check to make sure that there isn t a build up of ice or frost under FDCW100VNX Strong wind combined with heavy snowfall can block the intake and exhaust air grilles Make sure that there is no snow on the grilles Also check that the condensation water drain under FDCW 100VNX is not blocked If necessary the outer casing can be cleaned using a damp cloth Care must be exercised so that the heat pump is not scratched when cleaning Avoid spraying water into the grilles or the sides so that water penet
128. h pressure 3 Setting SW3 1 SW3 2 on site 1 Defrost control switching SW3 1 When this switch is turned ON the unit will run in the defrost mode more frequently Set this switch to ON when installed in a region where outdoor temperature falls below zero during the season the unit is run for a heating operation Snow guard fan control SW3 2 When this switch is turned on the outdoor unit fan will run for 10 seconds in every 10 minutes when outdoor temperature falls to 3 C or lower and the compressor is not running When the unit is used in a very snowy country set this switch to ON 4 Failure diagnosis in a test run Printed circuit board LED The cycles of 5 seconds Indoor Unit Display Error Code in Error Log Wem Failure event Action OU phase error E34 Blinking once Blinking continuously Open phase Check power cables for loose contact or disconnection PR i 63H1 actuation or operation with operation valves shut 1 Check whether the operation val HP alarm E40 Blinking once Blinking continuousl ay dun id 9 occurs mainly during a heating operation 2 If an error has been canceled when 3 minutes have elapsed since ini Low pressure error or operation with operation valves shut compressor stop you can restart the unit by effecting Check Reset LP alarm E49 Blinking once Blinking continuously occurs mainly during a cooling operation from the remote control unit
129. he vessel The vessel in HM270V is emptied by opening the valve QM1 and safety valve FL2 NOTE When the vessel in HM270V is emptied via the valve QMI some water will remain in the coil and in the heat exchanger This means that there is a risk of the heat exchanger pipes and valves freezing at low temperatures as well as a hygienic risk for the coil in the hot water section Pipe installation General Pipe installation must be carried out in accordance with current norms and directives HM270V can operate with a return temperature of up to 65 C and an outgoing temperature from the unit of 65 HM270V is not equipped with shut off valves these must be installed outside the heat pump to facilitate any future servicing HM270V can be connected to the radiator system floor heating system and or fan convectors Install the supplied safety valve and manometer Overflow valve NOTE A free flow is required for all docking options which means that an over flow valve must be installed System requirements This is required for minimum configuration The volume in the climate system must be at least 500 For systems with under floor heating at least 100 0 is required this is not fulfilled volume vessel must be installed For more options see the docking description on page 27 Dimensions and pipe connections 42 660
130. heater to outdoor module for operation in colder climates Part no PCZ006A033 ESV 22 Extra mixing valve group Part no MCD291A003 MH RG 10 Room sensor Part no MCD291A001 ACK22 Cable kit for ESV 22 or VCC 22 Part no MCD291A004 171 Technical data Accessories VCC22 Reversing valve cooling Part no MCD291A002 AIR TO WATER HEAT PUMP EA MITSUBISHI HEAVY INDUSTRIES LTD Air Conditioning amp Refrigeration Systems Headquarters 16 5 2 chome Kounan Minato ku Tokyo 108 8215 Japan Fax 03 6716 5926 Because of our policy of continuous improvement we reserve the right to make changes in all specifications without notice
131. here are two different ways to produce hot water during cooling and it can be chosen by the setting of electric heater use in Menu 8 2 1 Allow add heat If the electric heater is allowed to use Cool or Heat Cool in setting hot water production is done by electric heater If it is not allowed Off or Heat in setting hot water production is done by the outdoor unit Defrost operation When frost accumulates on the surface of the outdoor heat exchanger defrost operation starts to remove it For detailed operation condition see outdoor unit control During defrost operation indoor unit operates as follows in order to extract heat from the heating system e Shunt valve QN11 and ball valve QM 30 and 31 are towards heating system e Circulation pump 1 keeps operating In case the return water temperature BT3 does not reach the threshold value defined in Menu 9 1 11 the ball valves QM30 and 31 switch towards hot water to extract heat from the tank Still the return water temperature is lower than the threshold electric heater starts energized Service Operation control function by the indoor unit controller Timing chart of DM value and supply water temperature Water temperature During this period target water temperature is Menu 9 6 7 1 5 C Overshoot upper limit Menu 9 6 7 REEL 4 YVI a Iur 4 curia Lc I Target water temperature by heating curve Eo e vla E Hind ES d Wr 2 Z
132. ill the phenomenon persists Is the service valve on the water Open it line open YES Is the valve s QM31or QN11 NO Is the operation signal of the si functioning properly valves outputted correctly eplace the indoor unit relay boari YES YES Replace the valve s Is there clogging on the strainer on YES Clean up the strainer the water line Is air bleed done properly NO Bleed the air in the water line YES Is the circulation pump setting Set the appropriate value to Menu 2 2 5 done properly obtain enough water flow If the phenomenon persists Is the operation signal of the pump 3s outputted correctly spiace ine pump NO Replace the indoor unit relay board AA6 gt 122 Service Troubleshooting guide E42 Current cut Is the voltage supply OK Check supply power voltage YES Open the service valves Are the service valves open YES Is the high pressure during Check the amount of refrigerant NO Check the refrigerant circuit operation OK YES Are the checks of the insulation resistance and the coil s resistance 0 4 ohm or greater at 25 C for the compressor OK NO Replace the compressor YES Is the power transistor check OK Replace the inverter PCB YES Is the air circulation at the outdoor unit obstructed Is the installation space sufficient During coo
133. ing 25 85 Hz rps Speed cooling 20 80 Hz rps Fan flow heating nominal 4380 m h Fan rating 86W Defrosting Reversing Breaking value high pressure 4 15 MPa Cut out value low pressure 15s 0 079 MPa Height 845 mm Width 970 mm Depth 370 mm 80 mm with foot rail Weight 74 kg Colour Stucco white Power line and signal line connection from indoor unit 5 core 2 5 mm Pipe connection option Bottom right hand side rearside 168 Technical data Operating temperature range Operating temperature range Heating Water temperature 20 25 43 Outdoor air temperature Cooling 25 H Water temperature Outdoor air temperature C 169 Technical data Capacity diagram Capacity diagram Heating MA Ajroede 0 30 Outdoor air temperature C Condition Supply water temperature 45 Return water temperature 40 Cooling Maxim Minimum SS I eames B PONES I t 1 MA Ajroede 45 40 35 30 25 20 15 10 Outdoor air temperature Condition 170 Supply water temperature 7 C Return water temperature 12 Accessories Accessories Drain Pan heater Drain pan
134. ing If heating or hot water are not required they can be deselected here Operating mode Hot water or Add heat only will be selectable if heating is deselected Setting range No HW No heating HW Heating Default value HW Heating Menu 9 3 15 S Heat drop at alarm Here you select whether heat production is to be reduced in the event of an alarm Setting range Yes No Default value Yes Menu 9 3 16 S Type of HW sensor Here you can select whether to use hot water sensors that manage higher temperatures above 90 C or not Standard Standard setting High temp Calculation for HW jacket sensor BT6 Addition sensor BT19 as well as supply sensor BT2 are replaced to suit a sensor that manages higher temperatures up to 110 C Used if new sensor is installed in connection with installation of solar heating Setting range Standard High temp Default value Standard Menu 9 3 17 S Freeze protection HX Select here whether water heat exchanger anti freeze is to be active or not Setting range On Off Default value On Menu 9 3 18 S Return Return to Menu 9 3 0 Menu 9 4 S Quick start If Yes 1s selected the compressor starts in the heat pump within 4 minutes if there is a demand However there is always a 30 minute compressor start delay if the power supply has been switched off Setting range No Yes Default value No Menu 9 5 0 S System info The sub menus to this menu contain informatio
135. insulation Installation Outdoor unit installation 3 DRAIN PIPING WORK Execute drain piping by using a drain elbow and drain grommets supplied separately as O There are 3 drain holes provided on the bottom plate of an outdoor unit to discharge optional parts where water drained from the outdoor unit is a problem condensed water O When condensed water needs to be led to a drain etc install the unit on a flat base supplied separately as an optional part or concrete blocks O Connect a drain elbow as shown in the illustration and close the other two drain holes Drain grommet with grommets 2 pes Electrical installation work must be performed by an electrical installation service provider qualified by a power provider ofthe country Electrical installation work must be executed according to the technical standards and other regulations applicable to electrical r Power source signal line and ground terminal block installations in the country Ground the unit Do not connect the grounding wire to a gas pipe water pipe lightning rod or telephone grounding wire If impropery grounded an electric shock or malfunction may result A grounding wire must be connected before connecting the power cable Provide a grounding wire longer than the power cable Do not lay electronic control cables remote control and signaling wires and other cables together outside the unit Laying them together can result in the malfunctioning or a
136. ion Off connected The pump is not connected or is incorrectly Check the connection Power failure Check power supply and fuses x short 1 x long Low voltage Check supply voltage 3 x short 1 x long Temperature too high The pump restarts automatically Check max system temperature 5 x short 1 x long Pump blocked Open and clean the pump The pump reduces the voltage automatically the speed at 105 to stop completely at 125 When the pump has cooled to 115 C again it restarts automatically Other faults Problem Cause Action Noise from pump Air in the system Vent the system Dirt in the pump Open and clean the pump Worn bearings Replace the pump Technical specifications Circulation pump Max pressure height Max volume flow Min max temperature Max system pressure Connection Length Voltage Frequency Output Not frozen or condensed kPa 6m 3000 2 h 10 C to 95 6 bar G1 Accessories 130 mm 200 240 V 50 60 Hz 9 63 W 60 B N Available pressure 0 0 0 05 011 0 16 0 22 0 28 0 33 039 044 0 5 0 55 Flow 2 s 149 Components HM270V Shuttle valves QM30 QM31 QN11 Actuator on 3 way valve Actuator on 2 way valve
137. ion Note The cooling curve in Menu 2 2 2 must be set to 0 to activate this function Menu 2 2 3 1 U Supply temp at 20 The supply temperature at an outdoor air temperature of 420 is selected here Setting range 0 C 25 C Default value 20 Limited by Menu 2 2 4 Min supply cooling Menu 2 2 3 2 U Supply temp at 40 The supply temperature at an outdoor air temperature of 40 is selected here Setting range 0 C 25 C Default value 10 C Limited by Menu 2 2 4 Min supply cooling Control Control Menu 2 2 3 3 U Return Return to Menu 2 2 3 0 Menu 2 2 4 N Min supply cooling The set minimum level for the supply temperature to the cooling system is shown here The calculated flow temperature never drops below the set level irrespective of the outdoor temperature cooling curve or its offset Setting range 7 25 Default value 10 C Menu 2 2 5 N Circ pump speed cool The speed of the circulation pump during cooling is selected here Setting range 1 100 Default value 100 Menu 2 2 6 N Return Return to Menu 2 2 0 Menu 2 3 U Max supply temp The set maximum level for the supply temperature to the heating system is shown here The calculated flow temperature never exceeds the set level irrespective of the outdoor temperature heating curve or offset heating curve Setting range 25 C 65 C Default value 55 Menu 2 4 U External adju
138. ion Cooling room temp i Menu 6 3 I 1 Heating I i gt Stop temp Start temp Heating Menu 8 2 3 Cooling Menu 8 2 4 Outdoor air temperature Mode transition in case AutoC is chosen Comfort setting cooling General In the default setting cooling operation is not allowed In order to activate change the setting on the Menu 9 3 3 Cooling system to NOTE The climate system must manage cooling operation Settings must be made by the installer when commissioning the system If a room sensor is connected it starts and stops cooling based on both the room and the outdoor temperature The lowest calculated supply water temperature is set in Menu 2 2 4 Cooling operated from the outdoor sensor in operating mode AutoC If the cooling system is set to in Menu 9 3 3 and the outdoor air temperature is greater or equivalent to the set start temperature for cooling in Menu 8 2 4 cooling starts Cooling stops when the outdoor air temperature drops below the set value minus the set value in Menu 8 2 5 The calculated supply water temperature is determined from the selected cooling curve in Menu 2 2 2 and the offset for cooling curve Menu 2 2 1 Limitations which are not in the diagram are included in the control system s permitted min temperature Calculated supply water temperature 0 2 30 40 Outdoor
139. ion vessel min 14L EP2 aA not included Ref Pipe R410a 5 8 3 8 Insulated max 12m Dptional 1 Optional 4 Optional 6 Flare connections Room sensor HW parts Flow relief valve Connections on top BP4 cpi HW D Powersupply Sx2 5mm Foi Fuse 16 Rsi 205 4 way valve Connection on top 63H1 High pressure switch ARS 15 GM30 Optional 7 CM Compressor motor i Extra system pump Powersupply 3x1l0mm2 urrent sensor EEV C E n Fuse 50 BEV C Expansion valve cooling Connection on top H Expansion valve heating FMol Fan motor GP10 EP21 BT2 Temperature sensor supply 2 EP2I BT3 Temperature sensor return 2 Ediciones MB EPALGPlo Circulation pump system 2 07 emperature Sensor CUNO alr EP21 QN11 Mixing valve system 2 3 way ball type 35sec Tho D Temperature sensor hot gas QNI2 Shuttle valve for heating cooling Tho RI Temperature sensor heat exchanger out Tho R2 Temperature sensor heat exchanger in Tho S Temperature sensor suction gas Sx2 Smm2 Supply amp Communication BP4 High pressure sensor 0 4 6 Connection on top 5 Pressure gauge 0 4 Bar i BTI Temperature sensor outdoor air external enclosed Dutdoor unit BT2 Temperature sensor supply BT3 Temperature sensor heat exch in Twin BT6 Temperature sensor tank water BTI2 Temperature sensor heat exch out Twout Tho S Tho D d BTIS Temperature sensor liquid pipe Thi L BT19 Temperat
140. is recommended to use 16A for 3 phase or 50 A for single phase m If the building is equipped with an earth fault breaker HM270V should be equipped with a separate one m Connection must not be carried out without the permission of the electricity supplier and under the supervision of a qualified electrician m 5x2 5 mm cable must be used for the connection between HM270V and FDCWI100VNX m FDCWIOOVNX is equipped with a single phase compressor This means that phase L3 is loaded with 15 A during compressor operation NOTE Electrical installation and service must be carried out under the supervision of a qualified electrician Electrical installation and wiring must be carried out in accordance with the stipulations in force NOTE The switch SF1 must not be moved from 1 ASV until the boiler has been filled with water The circulation pump and immersion heater may become damaged Principle diagram electrical installation PEN LiL L distribution L ossa Power and Isolator switch Incoming supply communication cable Current sensor Only in a 3 phase installation For details see Connecting the current limiter Electrical components Nes mm UBI UB2 rear front X1 S
141. ity of bothering neighbors due to noise or exhaust air from the unit Recommend setting Defrost Control SW3 1 and Snow Guard Fan Control SW3 2 Refer to Setting SW3 1 O A place where the unit is not exposed to oil splashes SW3 2 O A place where it can be free from danger of flammable gas leakage O A place where drain water can be disposed without any trouble 2 If the unit can be affected by strong wind following measures are required O A place where the unit will not be affected by heat radiation from other heat source Strong wind can cause damage of fan fan motor or can cause performance degradation or can trigger O A place where snow will not accumulate anomalous stop of the unit due to rising of high pressure A place where the unit can be kept away 5m or more from TV set and or radio receiver in order to avoid any radio 1 Install the outlet air blow side 2 Install the outlet air blow side 3 The unit should be installed on or TV interference of the unit to face a wall of of the unit in a position the stable and level foundation O A place where good air circulation can be secured and enough service space can be secured for maintenance and building or provide a fence or perpendicular to the direction If the foundation is not level service of the unit safely a windbreak screen of wind tie down the unit with wires O A place where the unit will not be affected by electromagnetic waves and or high harmonic waves generated by other
142. lay test forced control DIP switches FDCW100VNX Circuit board layout Function Component replacement HM270V 75 75 75 81 94 103 103 103 103 106 107 108 108 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 128 129 130 131 132 133 134 134 136 136 136 137 137 FDCW100VNX Components HM270V Circulation pump GP10 Shuttle valves QM30 QM31 QN11 Particle filter HQ1 Safety valve FL2 Summary FDCW100VNX Compressor 4 way valve Expansion valve Low pressure sensor Technical data Electrical circuit diagram HM270V FDCW100VNX Temperature sensor Sensor placement Data for sensor in FDCW100VNX Data for sensor in HM270V Component positions Indoor unit Outdoor unit Dimensions Indoor unit Outdoor unit Technical specifications Performance Operating temperature range Capacity diagram Accessories Accessories 138 148 148 150 152 152 152 153 153 153 153 155 155 160 161 161 161 161 162 162 164 165 165 166 167 167 169 170 171 171 When install the unit be sure to check whether the selection of installation place power supply specifications usage limitation piping length height differences between indoor and outdoor units power supply voltage and etc
143. ling does the fan motor run Are the service valves fully open Is the filter blocked Are the low pressure sensor and the suction gas sensor OK Does the compressor sound different than usual Does the fault disappear if the current is switched off and on NO Replace the inverter PC several times YES Temporary surge on incoming supply may have caused the alarm 123 Service Troubleshooting guide E45 Inverter communication error Is the connection between the control PCB and the inverter PCB ok NO Correct the connection YES Are JSW10 11 on the inverter PCB all set to open Set JSW10 11 to open 2 o YES Check why the inverter PCB has Does the LED on the inverter PCB NO flash no power Defective fan motor YES Replace the control PCB Has the fault been corrected NO Replace the inverter PCB 124 E48 Fan alarm Is there any foreign material obstructing the fan propeller NO Replace the fan motor If the resistance between Does the fan rotate freely when it is turned by hand bi Vm red GND blue is 1 kQ or lower the motor is defective YES Is there DC280V between CNFAN red blue on the fan motor s connection Cut and reset the voltage supply Replace the fan motor If the fault Has the fault been corrected YES persists replace the control
144. ly YES Replace the valve s Is there clogging on the strainer YES Clean up the strainer on the water line Is air bleed done properly NO Bleed the air in the water line YES YES Is the circulation pump setting Set the appropriate value 2 2 5 done properly to obtain enough water flow YES If the phenomenon persists Is the min supply cooling setting Set the value higher so as not 2 2 4 too low toaffect the room comfort If the phenomenon persists Is the operation signal VES Replace th of the pump outputted correctly SERE NO Replace the indoor unit relay board AA6 10 Service 6 High condenser out Are the characteristics of the condenser out sensor BT12 OK NO Replace the sensor YES Check the flow over heat exchanger EP2 and settings for heating and hot water 11 Service Troubleshooting guide 7 Anti freeze HX Does the low pressure saturated temperature NO correspond to the liquid line temperature BT15 YES Is the valve of the refrigeration NO it Da en it circuit on the outdoor unit open P YES Is the low pressure sensor on the outdoor unit corrected properly YES Replace the LP sensor Is the charged refrigerant NO Recharge the refrigerant amount correct YES Is the service valve on the y NO Open it water line open YES Is the valve s QM31 or QN
145. ly The size of the property s main circuit breaker is set using the knob R24 on the circuit limiter PCB AA22 The setting can be read in Menu 8 3 4 Main fuse rating Knob position 16 16 20 20 25 25 factory setting 35 35 50 50 63 63 Installation Indoor unit installation Setting max power electric heater R25 on AA22 Setting of the different maximum immersion heater outputs is made using the knob R25 on the PCB AA22 Set value displayed in Menu 8 3 2 The following table only applies when Menu 9 2 8 Add heat type is set to Internal power factory setting When the outdoor unit is in operation maximum heater output is limited to 6 0 kW Immersion Knob position electric load heater out power phase A put kW Menu 8 3 2 4 0 A 2 15 6 0 B 3 15 9 0 C factory setting 4 15 Only applies to 3 phase connection Setting max boiler temperature R26 on AA22 The setting of the different maximum boiler temperatures is made on the knob R26 on the PCB AA22 Set value displayed in Menu 9 3 1 Boiler temperature Knob position 55 A 60 B 65 C factory setting 65 D 65 E 65 F PCB terminal and wiring diagram The following connections are made on the PCB AA22 See wiring diagram for complete wiring diagram of the PCB AA22 X1 AA22 X2
146. ly on the wall or at the place near bed room Locations where an equipment affected by high harmonics is placed TV set or radio receiver is placed within 5m Locations where drainage cannot run off safely It can affect surrounding environment and cause a claim Do not use the unit for special purposes such as storing foods cooling precision instruments and preservation of animals plants or art It can cause the damage of the items Take care when carrying the unit by hand If the unit weights more than 20kg it must be carried by two or more persons Do not carry by the plastic straps always use the carry handle when carrying the unit by hand Use gloves to minimize the risk of cuts by the aluminum fins Dispose of any packing materials correctly Any remaining packing materials can cause personal injury as it contains nails and wood And to avoid danger of suffocation be sure to keep the plastic wrapper away from children and to dispose after tear it up Pay attention not to damage the drain pan by weld spatter when welding work is done near the indoor unit If weld spatter entered into the indoor unit during welding work it can cause pin hole in drain pan and result in water leakage To prevent such damage keep the indoor unit in its packing or cover it Be sure to insulate the refrigerant pipes so as not to condense the ambient air moisture on them Insufficient insulation can cause condensation which can lead to
147. ly temp at 20 The supply temperature at an outdoor air temperature of 20 is selected here Setting range 0 C 80 Default value 35 C Limited by Menu 3 4 Max supply temp 2 Menu 3 6 3 U Buckling temperature Here you select at what outside air temperature the break point shall occur Setting range 15 15 C Default value 0 Menu 3 6 4 U Supply t at buckl You set the calculated supply temperature for the break point here Setting range 0 C 80 Default value 30 Limited by Menu 3 4 Max supply temp 2 Menu 3 6 5 U Return Return to Menu 3 6 0 Menu 3 7 U Supply Return temp 2 The present supply and return temperatures for heating system 2 are shown here Return temperature is shown in brackets Menu 3 8 N Return Return to Menu 3 0 4 0 N Outdoor temp Menu 4 1 N Outdoor avg temp This menu shows the average outdoor temperature according to the set value in Menu 4 2 factory setting 24h Menu 4 2 U Outdoor filter time Here you select during how long the average temperature in Menu 4 1 is calculated Setting range 1 min 10 min 1h 2h 4h 6h 12h 24h Default value 24h Menu 4 3 U Outdoor avg 1min Shows the average outdoor temperature over the last minute Menu 4 4 N Return Return to Menu 4 0 Control Control 5 0 N Heat pump Menu 5 1 N Number of starts The accumulated number of starts with the compressor in FDCW100VN
148. moisture damage on the ceiling floor furniture and any other valuables Be sure to perform air tightness test by pressurizing with nitrogen gas after completed refrigerant piping work If the density of refrigerant exceeds the limit in the event of refrigerant leakage in the small room lack of oxygen can occur which can cause serious accidents Do not shut off the power supply immediately after stopping the operation Wait at least 5 minutes otherwise there is a risk of water leakage or breakdown Do not control the system with main power switch It can cause fire or water leakage In addition the fan can start unexpectedly which can cause personal injury Do not touch any refrigerant pipes with your hands when the system is in operation During operation the refrigerant pipes become extremely hot or extremely cold depending the operating condition and it can cause burn injury or frost injury Notabilia for units designed for R410A Only use R410A refrigerant R410A is the refrigerant whose pressure is 1 6 times as high as that of conventional refrigerant The size of charging port of service valve and check joint R410A are altered from that for conventional refrigerant in order to prevent the system being charged with the incorrect refrigerant by mistake And the protruding dimension of pipe for flare processing and flare nut size for R410A are also altered from that for conventional refrigerant in order to rein
149. mperature drops to the reset value of 51 C or lower it becomes possible to restart from the controller 3 Heating high pressure protection a Protective control i If the liquid line temperature of water heat exchanger BT15 Thi L or the condensing saturated temperature CST whichever the higher exceeds the setting value the compressor speed frequency is controlled to suppress the rise of high pressure H Control value A is updated to an optimum value automatically according to the operating conditions Reduce compressor speed at every 30 seconds Control value A Reset 60 Liquid line temperature of water heat exchanger b Anomalous stop control If the liquid line temperature of water heat exchanger BT15 Thi L or the condensing saturated temperature CST whichever the higher exceeds the setting value for 2 seconds compressor stops The compressor automatically restarts when the temperature gets 47 C or lower Compressor stop Compressor operation 47 65 Liquid line temperature of water heat exchanger or condensing satureted temperature Service Operation control function by the outdoor unit controller 4 Anomaly detection control by the high pressure switch 63H 1 i iD If the high pressure rises and activates the high pressure switch opens at 4 15MPa close at 3 15MPa the compressor stops Under any of following conditions HP alarm is displayed and E40 is recorded in the E
150. mperature sensor BT2 30 MCD291A153 Outdoor sensor MCD291A123 Particle filter HQ2 MCD291A138 Safety valve FL2 MCD291A142 152 FDCW100VNX Compressor TTischarge gas Suction gas Hai Rotor motor Stator motor 4 way valve From discharge From evaporator To suction gas From discharge Valve i To suction gas From evaporator To condenser Components FDCW100VNX Expansion valve Coil stator Permanent magnet rotor Needle valve Refrigerant Low pressure sensor Membrane Flue Pressure from refrigrant 153 Technical data Technical data Technical data Electrical circuit diagram Electrical circuit diagram HM270V EB N 26 gt eL E L gt L lt lt N N I i r Me c em S N 1 Ct os n 820 620 5 Ed 500 lt 820 d E uo m cu o e eh e 0507 qum b 1 F lt qu al 3 due du mle NE E tn aa Iz 23 MM 13 m ES ZO _ gt 5 z gt 25 lt 9 n T qs 890
151. n at B rps as fixed frequency for 10 minutes Operation Mode Arps rps C rps Cooling 55 55 30 b Low frequency operation control during heating Control condition When the conditions of compressor protection start III is established and 30 minutes or more has elapsed after turning the power circuit breaker on the low frequency operation control is performed during heating Control contents D Start the compressor at rps as target frequency However when inlet water temperature is 48 C or higher and outdoor air temperature is 0 C or higher it starts at C rps D At 30 seconds after starting compressor the target frequency changes to B rps and compressor is kept operation at B rps as fixed frequency for 10 minutes Operation Mode Arps B rps rps Heating 55 55 30 Outdoor fan control 1 Outdoor fan speed i Fan nit rpm Operation Mode Fan speed unit rpm Minimum Maximum Cooling 390 870 Heating 390 740 2 Fan speed control during cooling operation Fan speed is controlled every 15 seconds according to the outdoor heat exchanger temperature Tho R1 R2 whichever the higher Tho R Fan speed Less than 30 Reduced by 10 rpm 30 C or higher but 45 C or lower Retained Higher than 45 C Increased by 10 rpm Service Operation control function by the outdoor unit controller 3 4 Defrosting 1 Fan speed contr
152. n going into combined mode operation earlier For details see timing chart on page 92 Forced outdoor unit stop In case the actual supply water temperature is higher than the target temperature and the gap is bigger than the value set in Menu 9 3 12 when the outdoor unit is operating the DM value 15 overwritten to 1 which results in stopping the outdoor unit operation immediately if there is no hot water demand Exceptional compressor speed control Forced minimum compressor speed operation When the compressor starts the request frequency is set at minimum for certain period The period can be set in Menu 9 6 5 This control is cancelled when 1 the set time has elapsed or 2 DM value gets significantly low Service Operation control function by the indoor unit controller Supply water temperature control in coonling Principle such as cooling curve cooling curve offset and upper lower limit is the same as heating operation Target supply water temperaure can be checked inMenu 2 0 Cooling curve can be chosen in Menu 2 2 2 Cooling curve Cooling curve is the basic principle to decide the target supply water temperature for cooling The higher the outdoor air temperature BT1 becomes the lower the target supply water temperture becomes and the characteristics can be adjusted in Menu 2 2 2 The figure below shows the characteristics of cooling curve When cooling curve 1 is chosen target supply water temperature is around
153. n is level shown here Menu 1 9 U HW run time Shows how long hot water charging with the compressor has been in progress accumulated Control Control Menu 1 10 0 S HW charge act set Shows the actual and target values for the hot water charging temperature Hot water charging settings are made in the sub menus for this menu Menu 1 10 1 S HW charge set temp Actual target supply temperature during hot water operation can be set Target supply temperature is set at 1 3 Stop temperature HW plus the set value in this menu Setting range 0 10 C Default value 2 0 C Menu 1 10 2 S Circ pump speed HW The speed of the heating medium pump during hot water charging is shown here Menu 1 10 3 S Circ pump manual Select to manually control the HW pump Setting range Off On Default value Off Menu 1 10 4 S HW reg min Here you select the control signal that the heating medium pump is to start at Setting range 1 50 Default value 1 Menu 1 10 5 S HW reg P P part for the HW pump regulator is selected here Setting range 0 127 Default value 14 Menu 1 10 6 S HW reg Q Q part for the HW pump regulator is selected here Setting range 0 127 Default value 110 Menu 1 10 7 S HW reg sample time The sample time for hot water charging is set here Setting range 1 30 Default value 5 Menu 1 10 8 S HW reg xP Here you select the extra amplification that the HW
154. n that is used when troubleshooting Only for service personnel Menu 9 5 1 S Heat pump type The type of connected heat pump is shown here Menu 9 5 2 S Cpu usage percent The CPU load is shown here Menu 9 5 3 S Com rate 1000 The number of communication retransmissions is shown here Menu 9 5 4 S Unit w com problem Any communication problems that a unit may have are shown here as well as the relevant unit Menu 9 5 5 S Run time add heat The accumulated running time for the electric heater since the first start is shown Menu 9 5 6 S Run time hot water The accumulated operating time in hours for hot water pro duction with compressor since the first start up is shown here Menu 9 5 7 S Program version The current program software version in HM270V is shown here Menu 9 5 8 S 106 card version The communication PCB version number is shown here AA23 Menu 9 5 9 S Display version The display version number is shown here Menu 9 5 10 S Relay card version The relay PCB version number is shown here Menu 9 5 11 S Lowest supply temp The minimum supply water temperature since start up is shown here Menu 9 5 12 S Percent runtime The compressor s running time percentage Menu 9 5 13 S Period Period counter for switching between hot water and heating cooling Menu 9 5 14 S Run status Shows the current operating status of FDCW100VNX The display can show Off Hot water Heating
155. nd consequently the room temperature The contact must be potential free and non locking When the contact is closed the heating curve offset is changed by the number of steps shown here The value is adjustable between 10 and 10 It is possible to set the offset value on system 1 and 2 independently Terminals to be connected Heating system 1 X1 3 and X1 4 on the PCB AA22 Heating system 2 X1 14 and X1 15 on the PCB AA22 Menu to change the offset value Heating system 1 Menu 2 4 External adjustment Heating system 2 Menu 3 5 External adjust 2 Contact for activation of Extra hot water An external contact can be connected to HM270V for activation of the Temporary extra hot water function The contact must be potential free and non locking and connected to terminal block X6 1 and X6 2 on PCB AA22 When the contact makes for at least one second the Temporary Extra hot water function is activated The function is cancelled automatically after 3 hours Alarm outputs External indication of common alarms is possible through the relay function on the PCB AA22 terminal block 2 1 2 When switch 1 is in the 0 or position the relay is in the alarm position Installation Indoor unit installation Docking specific connection HM270V is prepared to control an external circulation pump GP10 and EP21 GP10 external mixing valve EP21 QN11 shuttle valve for cooling QN12 as well as extern
156. ng concrete foundations Install the unit in a level area With a gradient of 5 mm or less Improper installation can result in a compressor failure broken piping within the unit and abnormal noise generation Il es EY x t4 Use a long block to extend the width Use a thicker block to anchor deeper Installation Outdoor unit installation 2 REFRIGERANT PIPING WORK 1 Restrictions on unit installation and use Check the following points in light of the indoor unit specifications and the installation site Observe the following restrictions on unit installation and use Improper installation can result in a compressor failure or performance degradation lt Single type gt Acti Dimensional Marks appearing in the drawing on the right Indoor unit Restrictions restrictions Single type One way pipe length of refrigerant piping 12m or less L Elevation difference between When the outdoor unit is positioned higher 7m or less H H indoor and outdoor units When the outdoor unit is positioned lower 7m or less H E Outdoor unit 2 Determination of pipe size Determine refrigerant pipe size pursuant to the following guidelines based on the indoor unit specifications FDCW100VNX Gas pipe Liquid pipe 415 88 9 52 Outdoor unit connected Flare Flare Refrigerant
157. ng work Electrical wiring work Commissioning Table of Contents Indoor unit installation General information Pipe installation Electrical installation Start up and inspection Preparations Commissioning Setting system flow heating Setting system flow cooling Commissioning HM270V without FDCW100VNX connected Checking external addition with electricity blocked Checking external addition with electricity as reserve Inspection of the installation Cleaning the particle filter Secondary adjustment Basic menu settings to be checked Checklist Checks before commissioning Control Control Display Menu types Menu management Menu tree Main menus 1 0 N Hot water temp 2 0 N Supply temp 3 0 N Supply temp 2 4 0 N Outdoor temp 5 0 N Heat pump 6 0 N Room temperature 7 0 N Clock 8 0 N Other adjustments 9 0 S Service menus System description Principle of operation Hydrolution Function General Installation requirements Explanation Radiators only heating Function Installation requirements Underfloor heating and cooling Function Installation requirements Fan convectors heating and cooling Function Installation requirements Dual system heating and cooling Function Installation requireme
158. ning conductor or telephone line s ground lead Incorrect grounding can cause unit faults such as electric shocks due to short circuiting Use the circuit breaker with sufficient breaking capacity If the breaker does not have sufficient breaking capacity it can cause the unit malfunction and fire Earth leakage breaker must be installed If the earth leakage breaker is not installed it can cause electric shocks Do not use any materials other than a fuse with the correct rating in the location where fuses are to be used Connecting the circuit with copper wire or other metal thread can cause unit failure and fire Do not install the unit near the location where leakage of combustible gases can occur Q If leaked gases accumulate around the unit it can cause fire Do not install the unit where corrosive gas such as sulfurous acid gas etc or combustible gas such as thinner and petroleum gases can accumulate or collect or where volatile combustible substances are handled S Corrosive gas can cause corrosion of heat exchanger breakage of plastic parts and etc And combustible gas can cause fire Secure a space for installation inspection and maintenance specified in the manual Q Insufficient space can result in accident such as personal injury due to falling from the installation place When the outdoor unit is installed on a roof or a high place provide permanent ladders and handrails along the access route and f
159. nts 66 66 69 69 70 71 71 71 72 72 73 7 7 74 74 Table of Contents Underfloor heating and fan convectors heating and cooling Function Installation requirements External heat source Sun Gas Oil Wood Service Operation control function by the indoor unit controller Operation control function by the outdoor unit controller Alarm list Alarm with automatic reset Temperature limiter alarm HM270V alarm FDCW100VNX alarm Hot water alarm Supply alarm Troubleshooting guide 3 Thermal cutout 4 OU power failure 5 Low condenser out 6 High condenser out 7 Anti freeze HX 8 High HW temp 9 High AH temp 10 High Supply temp 1 11 High Supply temp 2 31 S fault HP 30 S fault Outdoor 32 S fault Cond out 33 S fault Liquid line 34 S fault HW 35 S fault AH 36 S fault supply 1 37 S fault supply 2 E35 High HX temp E36 Permanent Hotgas E37 S fault Tho R E38 S fault Tho A E39 S fault Tho D E40 HP alarm E42 Current cut E45 Inverter communication error E48 Fan alarm E49 LP alarm E51 Inverter and fan motor error E53 S fault Tho S E54 S fault LPT E57 Low refrigerant E59 Inverter error Temperature sensor Function check components HM 270V Re
160. nu the user temporarily takes control of the relays in the heat pump The setting automatically returns to Off 30 minutes after the last button was pushed after a restart Setting range Off On Default value Off Menu 9 3 7 2 9 3 7 15 S K1 K14 Here you can select manual control of the relays Setting range Off On Auto Default value Auto Menu 9 3 7 16 S Alarm 1 Here you can select manual test of alarm relay 1 Setting range Off On Auto Default value Auto Menu 9 3 7 17 S Alarm 2 Here you can select manual test of alarm relay 2 Setting range Off On Auto Default value Auto Menu 9 3 7 18 S Return Return to Menu 9 3 7 0 Menu 9 3 8 S Factory setting Here you can select to restore factory settings in HM 270V When returning to the factory settings the language switches to English Setting range Yes No Default value No Control Control Menu 9 3 9 S Operating state Describes the operating status of HM270V and FDCW 100VNX Shutdown Additional heater and heat pump are shutdown due to an alarm Alternating The heat pump produces heat and switches when necessary between hot water and heating Combined Mode Due to a great heating demand the electric heater is used for hot water and the heat pump produces heat The electric heater assists when necessary with heat production Cooling The heat pump produces cooling and switches between hot water and cooling system when
161. nu 8 1 4 U Light intensity The light intensity in idle mode is set here Idle mode starts 30 minutes after the last button was pushed Setting range 0 off 1 low 2 average Default value 2 Menu 8 1 5 N Return Return to Menu 8 1 0 Menu 8 2 0 N Op mode settings Settings regarding auto mode can be made in the sub menus to this menu Menu 8 2 1 N Allow add heat At which operating mode the electric heater is to be permitted to produce hot water and heat when needed is selected here Setting range Off Heating Heating Cooling Cooling Default values Heating Menu 8 2 2 N Add heat mode Selected if electric heater only is to be used to produce hot water and heat Setting range Off On Default value Off Menu 8 2 3 U Stop temp heating The average outdoor air temperature at which the heat pump in auto mode is to stop heat production When the average outdoor air temperature falls below Stop temp heating Hysteresis Menu 8 2 5 heating starts again Setting range 1 43 C Default value 17 C Menu 8 2 4 U Start temp cooling The average outdoor air temperature at which the heat pump in autoC mode is to start cooling When the average outdoor temperature exceed it cooling starts When the average outdoor air temperature falls below Start temp cooling Hysteresis Menu 8 2 5 cooling stops Setting range 10 43 C Default value 25 C Operable temperature range is 1
162. o R2 Designa Description Designa Description tion tion 208 Solenoid for 4 way valve Tho D Temperature sensor hot gas 52X1 Auxiliary relay for CH Temperature sensor IPM 52X3 Auxiliary relay for DH Tho R1 Temperature sensor heat exchanger out 63H1 High pressure switch Tho R2 Temperature sensor heat exchanger in CH Crankcase heater Tho S Temperature sensor suction gas CM Compressor motor CT Current sensor DH Drain pan heater accessory DM Diode module Fuse FMol Fan motor IPM Intelligent power module L Reactor LEDI Indication lamp green LED2 Indication lamp red LPT Low pressure sensor SMI Expansion valve for cooling SM2 Expansion valve for heating SWI Pump down switch SW3 Local setting switch TB Terminal block Tho A Temperature sensor outdoor air 160 Temperature sensor Sensor placement Tho S Tho D i AMS 10 ACVM 270 BT Temperature sensor outdoor air external BT2 Temperature sensor supply BT3 Temperature sensor heat exch in Twin BT6 Temperature sensor tank water BT12 Temperature sensor heat exch out Twout BT15 Temperature sensor liquid pipe Thi L BT19 Temperature sensor immersion heater Tho A Temperature sensor outdoor air Tho D Temperature sensor hot gas Tho R1 Temperature sensor heat exchanger out Tho R2 Temperature sensor heat exchanger in Tho S Temperature sensor suction gas Data for sensor FDCW100VNX Tho D e ei SB
163. o the DM value operating state is changed Default of DM start cooling value Menu 9 1 2 is 60 Compressor QFF Compressor ON DM value 0 DM start cooling Menu 9 1 2 Exceptional processing of DM value Forced outdoor unit operation In cooling mode there is no exceptional DM value processing to operate the outdoor unit according to the gap between target and actual supply water temperature Forced outdoor unit stop In case the actual supply water temperature is lower than the target temperature and the gap is bigger than the value set in Menu 9 3 12 when the outdoor unit is operating the DM value is overwritten to 1 which results in stopping the outdoor unit operation immediately Exceptional compressor speed control Forced minimum compressor speed operation When the compressor starts the request frequency is set at minimum for certain period The period can be set in Menu 9 6 5 The control is cancelled when 1 the set time has elapsed or 2 DM value gets significantly high Service Operation control function by the indoor unit controller Hot water operation control Hot water operation is prioritized over heating and cooling ON OFF control Regardless of the DM value hot water operation when tank water temperature BT6 lowers below Start temp HW in Menu 1 2 It finishes when the tank water temperature reaches Stop temp HW in Menu 1 3 In case there are demands for both hot water and heating cooling there is a c
164. of the hot water period and the time for the whole period are shown here Whole period is shown in brackets Shown for both hot water charging and heating when necess ary Time for Heating Max when heating is in progress Time for Hot water Max if hot water charging is in progress Menu 1 2 N Start temperature HW The temperature when the heat pump starts hot water charging is set here Setting range 25 55 Default value 47 Menu 1 3 N Stop temperature HW The temperature when the heat pump stops hot water charging is set here Setting range 30 C 60 C Default value 53 C Menu 1 4 U Stop temperature XHW The desired temperature during extra hot water is set here Setting range 40 C 65 C Default value 65 Menu 1 5 U Heat pump stop XHW The desired stop temperature during extra hot water for the heat pump is set here Setting range 40 60 Default value 60 Menu 1 6 U Max heat p time XHW Here you select the maximum amount of time the heat pump can charge hot water for during extra hot water Setting range 0 60 min Default value 50 min Menu 1 7 U Interval XHW Periodic time based extra hot water is selected here Extra hot water is shut off at the value Off Extra hot water 18 started when the value is confirmed Setting range 0 90 days Default value Off Menu 1 8 U Next XHW action Time to the next periodic Extra hot water operatio
165. ol during heating operation According to the outdoor air temperature Tho A fan speed control is switched between A and B Control B 23 25 Outdoor air temperature C Control A Fan speed is controlled every 15 seconds according to the difference between the outdoor air temperature Tho A and the outdoor heat exchanger temperature Tho R1 R2 whichever the higher Tho A Tho R Fan speed Less than 3degC Reduced by 10 rpm 3degC or more but 6degC or less Retained More than 6degC Increased by 10 rpm Control B Fan speed is controlled every 15 seconds according to the low pressure LPT LPT Fan speed More than 1 1MPa Reduced by 10 rpm 1 0MPa or more but 1 1 MPa or less Retained Less than 1 0MPa Increased by 10 rpm Snow protection fan control If the dip switch SW3 2 on the outdoor control PCB is turned ON the outdoor fan is operated for 30 seconds at 740rpm once in every 10 minutes according to outdoor air temperature Tho A shown in below figure in the stop mode or anomalous stop mode Snow protection fan control OFF Snow protection fan control ON 3 5 Outdoor air temperature C Defrosting start conditions If all of the following defrosting condition A or condition B are met the defrosting operation starts a Defrosting conditions i Cumulative compressor operation time after the end of defrosting has elapsed 37 minutes 1
166. ollowing page The above applies to closed heating systems Do not replace any part of the split system without carrying out new checks Cleaning the particle filter Clean the particle filter after installation Installation Start up and inspection Secondary adjustment Air is initially released from the hot water and venting may be necessary If gurgling sounds can be heard from HM270V or from the climate system the entire system will require additional venting Note Use bleed valve QM20 any external bleed valves as well as safety valve FL2 The latter must be operated carefully as it opens quickly When the system is stable correct pressure and all air eliminated the automatic heating control system can be set as required Installation Start up and inspection Basic menu settings to be checked Example This check sheet shows an example for a radiator system with a room sensor MH RG10 A CPI Extra system volume Overflow valve BTL Fill in the altered set value on the blank cell of Set value As for the set value which is already written in the cell check if the setting is properly changed 1 Initial settings Function Menu No Default value Set value Check Remarks Language 8 1 2 English Language setting used for display Date 7 1 TN Time 7 2 2 Heating settings
167. on 1 2 85 kW Cooling power consumption Condition 2 3 04 kW Condition 1 3 60 Heating COP zm Condition 2 4 44 Condition 1 2 81 Cooling EER Condition 2 3 62 Sound power level Condition 1 64 5 dB A Working range during heating with compressor outdoor air temperature 20 43 C Working range during cooling outdoor air temperature 15 43 C Max temperature flow line 65 C Max temperature flow line only compressor 58 C Max temperature return line 65 C Min temperature flow line during heating with compressor and continuous 25 operation Min temperature flow line during cooling 7 C Max temperature flow line during cooling 25 C Max current 44 A 16A Recommended fuse rating 50A 16A Starting current 5A 5A Incoming supply deviation 15 410 Refrigerant quantity RA10A 2 9 kg included in FDCW100VNX Max length refrigerant pipe one way 12m Max height difference refrigerant pipe 7m Dimensions refrigerant pipe Gas pipe OD15 88 5 8 Liquid pipe OD9 52 3 8 Pipe connections Flare Condition 1 Heating outdoor air temperature 7 CDB 6 CWB Supply 45 C AT 5 C Cooling outdoor air temperature 35 CDB Supply 7 C AT 5 C Condition 2 Heating outdoor air temperature 7 CDB 6 CWB Supply 35 AT 5 C Cooling outdoor air temperature 35 CDB Supply 18 C 5 167 Technical data Technical specifications HM270V Immersion heater Max 9 kW P
168. on the power when the ambient temperature is below 20 C to avoid breakdown of electronic a component A failure to observe these instructions can result in a compressor breakdown In case of the first operation after turning on power even if the unit does not operate for 30 minutes it is not a breakdown When you leave the outdoor unit with power supplied to it Always give a 3 minute or longer interval before you start the unit again whenever it is stopped Items to checkbefore a test be sure to close the panel Removing th i will high voltage live parts and high t ti rts which it Removing service panel will expose high voltage live parts and high temperature parts which are quite fan Nolen fe installation manual item Check item Check Take utmost care not to incur an electric shock or burns Do not leave the unit with the service panel open ZN WARNING Were air tightness test and vacuum extraction surely performed Refrigerant plumbing Are heat insulation materials installed on both liquid and gas pipes Are operation valves surely opened for both liquid and gas systems Is the unit free from cabling errors such as uncompleted connection or reversed phase When you operate switches SW3 for on site setting be careful not to touch a live part CAUTION You cannot check discharge pressure from the liquid operation valve charge port The 4
169. or details 4 Cooling Cold water is supplied for cooling Super Cooling Circulation pump is always running for cooling regardless of the outdoor unit operation Hot water operation will be made when the tank water temperature lowers by the outdoor unit if the electric heater is not allowed Cooling by the electric heater if it is allowed Super Cooling 5 Hot water e Always hot water operation e Water is not supplied to the climate system e Circulation pump stops when the outdoor unit stops e Electric heater use is not allowed 6 Extra hot water e Hot water operation for higher temperature or for big demand e Electric heater is used if the target temperature is higher than the operable range of the heat pump 7 Add Heat only e Outdoor unit is not allowed to operate e Only electric heater is exclusively used for Heating and Hot water operation e Circulation pump is always running Note 1 The measured value of outdoor air temperature BT1 which is used for control is averaged in accordance with the prescribed formula See Menu 4 2 for setting Note 2 Heating Cooling demand is calculated as numeric DM Degree Minutes from the supply water temperature BT2 and its target temperature in accordance with the prescribed formula See Menu 2 6 9 1 1 9 1 2 and 9 2 1 for setting Note 3 Electric heater can be replaced with external heat source of the docking feature See Menu 8 2 1 8 2 2 and 9 2 8 for setting Note 4 T
170. ossible electrical step 4 2 4 6 9 kW Circulation pump output 9 80 W variable speed Circulation pump max available pressure 57 kPa external Circulation pump max flow 0 54 Q s Circulation pump flow at 20 kPa external pressure drop 0 45 Q s Min max system flow 0 15 0 57 0 5 Emergency mode thermostat 35 45 C factory setting 35 C Temperature limiter 98 8 C Safety valve climate system 0 25 MPa Enclosure class IP 21 Volume total 2701 45 Volume hot water coil 141 Material hot water coil Stainless steel AISI3 16L AISI316DIN 1 4404 1 4401 Max pressure vessel 0 25 MPa 2 5 Bar Max pressure hot water coil 1 0 MPa 10 Bar Max pressure cooling system 4 5 MPa The water quality domestic hot water and climate system lt EU directive no 98 83 EF Max operating temperature vessel 65 C Ambient temperature indoor module 5 35 C max relative humidity 95 Connection cold water Compression ring 22 mm Connection domestic hot water Compression ring 22 mm Connection docking ISO 228 1 G1 internal Height 1760 mm 20 55 mm adjustable feet Required ceiling height 2050 mm Width 600 mm Depth 650 mm Weight 140 kg Weight packaging 10 kg Volume with packaging 1 1 m3 Electrical connections 230 V 1AC 50 Hz or 400 V 3NAC 50 Hz FDCW100VNX Compressor Twin Rotary Speed heat
171. oting guide 30 S fault Outdoor 32 S fault Cond out 33 S fault Liquid line 34 S fault HW 35 S fault AH 36 S fault supply 1 37 S fault supply 2 Is the actual sensor correctly E 2 NO Connect it correctly connected YES Are the characteristics for the sensor OK See Temperature sensor section NO Defective sensor replace YES Replace EBV board AA22 116 Service Troubleshooting guide E35 High HX temp Are the characteristics of the heat exchanger sensor Tho R1 R2 OK NO Replace defective sensor YES Is the air circulation at the outdoor Is the air circulation around the unit obstructed NO outdoor unit done properly Is the installation space sufficient Is the heat exchanger clogged YES Check the operation data with logging tool Is the high pressure protection control activated properly NO YES Does the temperature external gauge correspond with the displayed temperature in the event of an alarm NO Defective control PCB replace YES Too much refrigerant Recharge correct amount of refrigerant 17 Service Troubleshooting guide E36 Permanent Hotgas Are the characteristics of the hot gas sensor Tho D OK NO YES Does the fault also occur during cooling Insufficient amount of refrigerant YES Recharge it NO Does the discharge pipe
172. ow Optimized operating costs The speed of the compressor is adjusted according to the demand Integrated coil water heater in HM 270V Integrated clock for scheduling extra hot water and temperature lowering increasing the supply water temperature Prepared for control of two heating systems Integrated active cooling function Possible to connect external heat sources For Home Owners Information about the installation Principle of operation Hydrolution Function Hydrolution is a system that can produce heating hot water and cooling The principle during heating can be simplified as follows 1 The refrigerant in FDCW100VNX takes the heat from the outdoor air and is compressed to higher temperature by the compressor 2 The hot refrigerant now in gas state is routed into HM 270V 3 The refrigerant releases the heat for further distribution in the system 4 The refrigerant now in liquid state is routed back to FDCW100VNX and the process is repeated By reversing the entire process and thereby the refrigerant in FDCWI100VNX takes the heat from the water and release the heat to the outdoor air the heat pump can cool instead if necessary HM270V determines when FDCW100VNX is to work and not to work using the collated data from the temperature sensor In the event of extra heat demands HM270V can connect additional heat source in th
173. own here Setting range 10 30 C Menu 6 4 U Room temp avg 1min Shows the average room temperature over the last minute Menu 6 5 U Room integrator time Select the integration time for room control here Setting range 0 120 Default value Off Menu 6 6 N Return Return to Menu 6 0 7 0 N Clock Menu 7 1 N Date The current date is set here Menu 7 2 N Time Here the current time is set Menu 7 3 0 U Temp set back Settings e g for night reduction can be selected in the submenus to this menu Menu 7 3 1 U Set back time The time for the set back operation e g night reduction is chosen here Menu 7 3 2 U Set back temp Changes of the heat curve during set back operation period e g the night reduction is set here Setting range 10 10 Default value 0 Menu 7 3 3 U Heating system The heating system to apply the set back operation is selected here If heating system 2 is present the menu can be set to Off System 1 System 2 or System 1 2 In other cases only Off and System 1 can be selected Setting range Off System 1 System 2 System 1 2 Default value Off Menu 7 3 4 U Return Return to Menu 7 3 0 Menu 7 4 0 U Extra hot water Settings are made in the sub menus of this menu when extra hot water is required on a specific day Menu 7 4 1 7 4 7 0 XHW Monday XHW Sunday Here you select the period for respective days
174. pansion vessel The expansion vessel s standard initial pressure must be entered in the check list on User s manual Any change in the initial pressure affects the ability of the expansion vessel to handle the expansion of the water Uu q Installation Indoor unit installation Manual shunting When HM270V is set to emergency mode on the main switch SF1 the heating control system is not in operation and is why manual shunt operation is required 1 Depress and lock the button on the valve 2 Tum the mixing valve to the desired position by hand Knob A Recommended installation order 1 Connect HM270V to the climate system cold and hot water lines as well as any external heat sources See page 25 Also see docking descriptions on page 27 and further on 2 Install the refrigerant pipes according to the description on the Installation manual for outdoor unit 3 Connect the current limiter any centralised load control In the emergency mode the valve position setting should be and external contacts as well as the cable between HM270V made as follows and FDCW100VNX See page 31 From left 4 Connect incoming electricity to HM270V See page 30 QM30 Horizontal Closed 5 Follow the commissioning instructions on page 36 QM31 Vertical Open OMII Vertical BA Emptying t
175. ply BT3 Temperature sensor heat exch in Twin BT6 Temperature sensor tank water BTI2 Temperature sensor heat exch out Twout 5 Temperature sensor liquid pipe Thi L BTI9 Temperature sensor immersion heater a BT24 Temperature sensor external heat source m BT30 Thermostat standby mode 35 45 adjustable CMI Expansion vessel BT6 pen CP1 Buffer vessel BT24 Sanitary cold water inlet EBI Immersion heater 9kW 3 phase d EP2 Heat exchanger FDI Temperature limiter 98C Br FLI Safety valve HW P FL2 Safety valve tank 2 5 Bar FOI Mixing valve HW GPI Circulation pump climate system variable flow GP10 Circulation pump external 1 Epi Strainer water 0 8mm2 HSI Filter dryer refrigerant bi flow 083 FIDL BT39 HW Sanitary hot water outlet MH RGI0 Room sensor MH RGI0 accessory QM30 Reversing valve hot water 2 way 35sec OMBI Reversing valve climate system 2 way 35sec Mixing valve 3 way ball type 35sec Indoor unit See page 69 circulation pump varies the flow to maintain a high charge temperature When the water heater is full the valves QM30 and QM31 switch to the heating system The heat pump is then controlled by a calculated set point value on the flow line The compressor varies the output according to the demand The circulation pump runs at a fixed set speed If the compressor does not manage the entire heat demand the electric heater is activa
176. pply water temperature set in Menu 2 1 4 and 2 3 for heating system 1 or in Menu 3 3 and 3 4 for heating system 2 Upper and lower limit is set after various offset correction For example when the upper and lower limit is set as below mentioned figure and if heating curve A and B is selected target supply water temperature is shown in full line and dotted line respectively Heating curve A Max supply temp in Menu 2 3 Menu 3 4 for system2 _ supply heating in Menu 2 1 4 Menu 3 3for system2 Calculated supply temp C Heating curve B Outdoor air temperature C Water temperature control when deviated from the target When the DM value is significantly small supply water temperature must be controlled higher than target temperature to reduce the deficit of DM value However too big overshoot of the supply temperature will affect comfort In order to control the supply water temperature to avoid fluctuation of room temperature overshoot limit is set in Menu 9 6 7 Max diff flow cFlow Once the supply water temperature reaches the threshold of Menu 9 6 7 thereafter the compressor speed is controlled so that the supply water temperature is kept below the overshoot limit For details see the timing chart on page 92 Service Operation control function by the indoor unit controller Heating thermo ON OFF control The control by DM value is the basic principle to operate stop the outdoo
177. pump regulator is to use below the breaking point Setting range 1 0 10 0 Default value 2 5 Control Control Menu 1 10 9 S HW reg value for xP Here you select the breaking point when the flow is no longer linear to the control signal in the heating medium pump Setting range 1 100 Default value 40 Menu 1 10 10 S Return Return to Menu 1 10 0 Menu 1 11 0 S CompFreq HW settings The compressor frequency during hot water charging is shown here Settings can be made regarding the compressor frequency during hot water charging in the submenus to this menu Menu 1 11 1 S CompFreq HW set Here you select the compressor frequency for hot water charg ing during manual control This setting is valid only when On is selected in Menu 1 11 2 Setting range 25 85 Hz Default value 60 Hz Menu 1 11 2 S CompFreq manual Select to control the compressor frequency for hot water charging manually Setting range Off On Default value Off Menu 1 11 3 S CompFreq at 20 The compressor frequency for hot water charging at an outdoor air temperature of 20 C is selected here Setting range 25 85 Hz Default value 40 Hz Menu 1 11 4 S CompFreq at 5 The compressor frequency for hot water charging at an outdoor air temperature of 5 is selected here Setting range 25 85 Hz Default value 80 Hz Menu 1 11 5 S Return Return to Menu 1 11 0 Menu 1 12 N Return Return
178. r Setting range 15 15 C Default value 0 C Menu 2 1 3 4 U Supply t at buckl You set the calculated supply temperature for the break point here Setting range 0 C 80 Default value 30 C Limited by Menu 2 3 Max supply temp Menu 2 1 3 5 U Return Return to Menu 2 1 3 0 Menu 2 1 4 U Min supply heating The set minimum level for the supply temperature to the heating system is shown here The calculated flow temperature never drops below the set level irrespective of the outdoor temperature heating curve or its offset heating curve Setting range 20 65 Default value 25 Menu 2 1 5 U Circ pump speed heat The speed of the circulation pump during space heating is selected here Setting range 1 100 Default value 100 Menu 2 1 6 N Return Return to Menu 2 1 0 Menu 2 2 0 N Cooling settings Cooling settings are made in the sub menus for this menu Menu 2 2 1 N Offset cooling Total The selected cooling curve offset is changed here The total offset of the cooling curve is also shown here It includes schedule outer compensation and any room control Setting range 10 10 Default value 1 Menu 2 2 2 N Cooling curve The selected cooling curve is shown here At value 0 the function Own cooling curve is activated see Menu 2 2 3 0 Setting range 0 3 Default value 1 Menu 2 2 3 0 U Own cooling curve Here you can select your own curve definit
179. r unit operation DM Degree Minutes value DM value is integrated value of the gap between the target and actual supply water temperature Compressor required speed and electric heater ON OFF are controlled by the DM value DM value is limited from 100 to DM start add heat Menu 9 2 1 and does not exceed the limit Operation state transition according to DM value According to the DM value operating state is changed Default of DM start heating value Menu 9 1 1 15 60 Default of DM start add heat value Menu 9 2 1 is 400 Electric heater ON Electric heater OFF Compressor ON Compressor OFF Alternating mode Compressor is stopped Alternating mode Compressor is operating L L L L Combined mode DM start add heat Menu 9 2 1 Midpoint of DM start heating Menu 9 1 1 Menu 9 1 1 and 9 2 1 Alternating mode It implements heating operation only with the outdoor unit The outdoor unit starts when the DM value becomes DM start heating set at Menu 9 1 1 or lower If hot water demand increases and tank water temperature BT6 lowers below the set value in Menu 1 3 operation state will switch to hot water operation For details see Hot water operation control Combined mode The system goes into Combined mode only when the electric heater is allowed to use in Menu 8 2 1 Hot water in tank is used for heating to cover the excess heat load Electric heater in the tank is ene
180. ral times Note Several times restarting trial may make a recovery from startup failure because liquid refrigerant migrated in the compressor could be discharged during several trial NO Defective compressor replace 132 Service Troubleshooting guide Temperature sensor Tho S Tho R1 Tho R2 Sensor placement 15 Temperature thermistor resistance 0 20 40 60 80 100 C Temperature Tho A o 35 c 5 30 2 o Tho S Tho D 55 2 20 E E 15 2 10 5 PC P FDCWI100VNX HM270V o E 10 20 30 40 5 C Temperature sensor outdoor air external Temperature BT2 Temperature sensor supply BT3 Temperature sensor heat exch in Twin Data for sensor in HM270V DIG tani watar Temperature Resistance ko Voltage V BT12 Temperature sensor heat exch out Twout 40 102 35 4 78 BT15 Temperature sensor liquid pipe Thi L 35 73 51 470 BT19 Temperature sensor immersion heater 30 53 44 4 60 Tho A Temperature sensor outdoor air 25 TT 47 Tho D Temperature sensor hot gas 20 2990 i Tho R1 Temperature sensor heat exchanger out 15 21 93 14 2 Tho R2 Temperature sensor heat exch
181. rates into FDCWI100VNX Prevent FDCW100VNX coming into contact with alkaline cleaning agents AAWARNING Rotating fan Saving tips Your Hydrolution produces heat and hot water according to your needs It also attempts to carry out all requirements with all available aids from the control settings made The indoor temperature is naturally affected by the energy consumption Therefore take care not to set a temperature higher than necessary Other known factors that affect the energy consumption are for example hot water consumption and the insulation level of the house as well as the level of comfort you require Also remember m Open the thermostat valves completely except in the rooms that are to be kept cooler for various reasons e g bedrooms Thermostat valves in the radiators and floor loops can negatively affect the energy consumption They slow the flow in the heating system which the heat pump wants to compensate with increased temperatures It then works harder and consumes more electrical energy For Home Owners Dealing with comfort disruption Dealing with comfort disruption Use the following list to find and remedy any heating or hot water problems Symptom Cause Action Low hot water temperature or a lack of hot water Circuit or main MCB tripped Check and replace blown fuses Heat pump and immersion heater do not heat Check and replace any blown circuit and m
182. re condition According to the condensing saturated temperature CST detected by indoor unit pressure sensor BP4 or Liquid pipe temperature Thi L detected by indoor unit temperature sensor BT15 whichever is higher minimum required frequency is changed as per below table CST or Thi L is 54 C or Minimum required frequency Heating 35rps Minimum required frequency adjustment under outdoor air temperature Tho A condition According to the outdoor air temperature minimum required frequency is offset by as per below table Cooling Outdoor air temperature is lower than 5 C 15rps Minimum required frequency Outdoor atr temperature is lower than 0 C 10rps Heating Outdoor air temperature is lower than 10 C 20rps Outdoor air temperature is lower than 20 C 30 When any of the controls from 1 4 above may duplicate whichever the smallest value among duplicated controls is taken as the maximum required frequency and whichever the biggest value is taken as the minimum required frequency Compressor start control 1 2 Compressor starts upon receipt of the thermostat ON signal from the indoor unit However at initial start up after turning the power circuit breaker on the compressor may enter the standby state for maximum 30 minutes in order to prevent from dry up of oil in the compressor Service Operation control function by the outdoor unit controller Compres
183. re sensor outdoor air Tho D Temperature sensor hot gas Tho R1 Temperature sensor heat exchanger out Tho R2 Temperature sensor heat exchanger in Tho S Temperature sensor suction gas 5x2 5mn2 Supply amp Communico tion Connection on top THA Outdoor unit g Tho S Tho D els 9 Tho R2 EEV H EEV C C ANN il Def Cool Heating Heating Def Cool Ec Indoor unit Function The heat pump prioritises hot water charging The compressor output is adjusted according to the outdoor temperature The circulation pump varies the flow to maintain a high charge temperature When the water heater is full the valves QM30 and QM31 switch to the heating system The heat pump is then controlled by a calculated set point value on the flow line The compressor varies the output according to the demand The circulation pump runs at a fixed set speed If the compressor does not manage the entire heat demand the electric heater is activated if it is allowed by setting and the heat shunted out on the flow line In the event of a cooling demand the heat pump is controlled by a calculated set point value on the flow line The compressor varies the output according to the demand The charge pump runs at a fixed set speed Heating mode QM30 Closed QM31 Open QN11 Active during
184. ressor is rotated to be lubricated Protection Shown when the compressor is in some form of protection or during a start delay of 30 minutes Shutdown Shown in the event of an alarm tariff B or Operating mode Addition only Stopped Shown when the outdoor temperature is outside the compressor s working range too high or too low temperature Menu 6 0 N Room temperature The room temperature is shown here and the set room temperature in brackets The factor for the room sensor and heating system to control are set in the sub menus to this menu Menu 7 0 N Clock The date and time are set in the submenus of this menu Differ ent temperature reductions and increases at selected times are also set from this menu Menu 8 0 N Other adjustments The menu type language operating mode settings and load monitor reading are set in the sub menus to this menu Menu 9 0 S Service menus This menu and its sub menus are only shown on the display screen when access has been selected in Menu 8 1 1 Values can be read and various settings can be made from these sub menus NOTE These settings should only be made by persons with the necessary expertise N Normal covers the normal user s needs U Extended shows all menus except the service menus S Service shows all menus returns to normal 30 minutes after the last button was pressed 1 0 N Hot water temp Menu 1 1 N Max HW Period time The time
185. rgized and the target tank water temperature is set at 2 C of heating curve or target tank water temperature for hot water set on Menu 1 5 whichever is higher Opening degree of mixing valve is adjusted so that the supply water temperature to the climate system will be 1 C of heating curve Note Electric heater can be replaced with external heat source of the docking feature See Menu 8 2 1 8 2 2 and 9 2 8 for setting Service Operation control function by the indoor unit controller Exceptional processing of DM value In case the actual supply water temperature BT2 deviates from the target temperature drastically DM value is sometimes forcibly overwritten to make the water temperature close to the target quickly Forced outdoor unit operation In case the actual supply water temperature is lower than the target temperature and the gap is bigger than the value set in Menu 9 3 12 Supply temp diff when the outdoor unit is not operating the DM value is overwritten to smaller value than in Menu 9 1 1 by 1 which results in starting the outdoor unit operation immediately For details see timing chart on page 92 Forced combined mode operation In case the actual supply water temperature is lower than the target temperature and the gap is bigger than the value set in Menu 9 3 12 plus 9 3 13 Diff HP add heat during Alternating mode operation the DM value is overwritten to bigger value than in Menu 9 2 1 by 1 which result i
186. rotections Touching rotating equipments hot surfaces or high voltage parts can cause personal injury due to entrapment burn or electric shocks Be sure to fix up the service panels Do not perform any repairs or modifications by yourself Consult the dealer if the unit requires repair Q If you repair or modify the unit it can cause water leaks electric shocks or fire Do not perform any change of protective device itself or its setup condition o The forced operation by short circuiting protective device of pressure switch and temperature controller or the use of non specified component can cause fire or burst Be sure to switch off the power supply in the event of installation inspection or servicing o If the power supply is not shut off there is a risk of electric shocks unit failure or personal injury due to the unexpected start of fan Consult the dealer or an expert regarding removal of the unit Incorrect installation can cause water leaks electric shocks or fire Stop the compressor before disconnecting refrigerant pipes in case of pump down operation If disconnecting refrigerant pipes in state of opening service valves before compressor stopping air can be sucked which can cause burst or personal injury due to anomalously high pressure in the refrigerant circuit NCAUTION Carry out the electrical work for ground lead with care Do not connect the ground lead to the gas line water line light
187. rror Log and it enters the anomalous stop mode D When high pressure exceeds the setting value and the compressor is stopped by 63H1 5 times within 60 minutes 2 When 63HI has been in the open state for 60 minutes continuously including the time of compressor stopping 5 Low pressure control Protective control If the value detected by the low pressure sensor LTP exceeds the setting value the compressor speed frequency is controlled to restrain the drop of pressure a b Reduce compressor speed at every 30 seconds Retention 0 150 0 189 Low pressure MPa Anomalous stop control D When a value detected by the low pressure sensor LPT satisfies any of the following conditions compressor stops CD When the low pressure drops to 0 079MPa or lower for 15 seconds continuously 2 After 10 minutes from compressor ON the suction superheat becomes 30 and the low pressure becomes 0 150MPa or lower for 60 seconds continuously Under any of the following conditions LP alarm is displayed and E49 is recorded in Error Log and it enters the anomalous stop mode CD When the low pressure drops and the compressor stops under any of above conditions 3 times within 60 minutes 2 When the low pressure sensor detects 0 079MPa for 5 minutes continuously including the time of compressor stopping 3 However when the control condition 1 is established during the control of the compressor protection start III LP al
188. s it installed in right direction Safety valve Is it installed in cold water line Mixer valve Is it installed in right direction Heating Notes Checked System volume 2704 ____ Totdl Safety valve Is FL2 installed Expansion vessel Total system volume X 5 or more 4 Internal heater Permitted prohibited Menu 8 2 1 External heat Source 6 Type ____ Setting Menu 9 2 8 ____ Heating system 2 NT Cooling Notes Checked Pipe system condensation insulation Reversing valve QN12 Is it installed in right direction Refrigerant system Notes Checked Pipe length within 12m m Height difference within 7m m Test pressurization 41 5 bar Leak tracing End pressure Evacuation bar or lower for one hour Electrical installation Notes Checked Property s main fuse 3lphase A Group fuse 3lphase ___ Current limiter current sensor Is it installed properly if the power supply is 3 phase Accessories Notes Checked External circulation pump Yes No Buffer vessel Yes No Volume Relief valve Yes No Roomsensor EAR 97035936 6 2 Control Control Control Control Control Display Operating symbols Menu number Value of the current parameter Hil AB MI Q wm 50 0 C Hot water temp m X z Menu EN Key lock 13 43 Clock Menu types Control is classified into different menu types depending on how d
189. s somewhere Find a leak by applying bubble test liquid to welded parts and flare joints and repair it After repair conduct an air tightness test again 2 In conducting an air tightness test use nitrogen gas and pressurize the system with nitrogen gas from the gas side Do not use a medium other than nitrogen gas under any circumstances Outdoor unit Indoor unit operation valve L Check joint Close 6 Evacuation 1 Vacuuming begins lt Work flow gt When the system has remaining moisture inside or a leaky point the vacuum gauge indicator will rise Check the system for leaky point and then draw air to create a vacuum again 7 Refrigerant charge Run the vacuum pump for at least one hour after the vacuum gauge shows 101kPa or lower 755mmHg or lower Vacuuming completed Confirm that the vacuum gauge indicator does not rise even if the system is left for one hour or more Vacuum gauge check Pay attention to the following points in addition to the above for the R410A and compatible machines Oo prevent a different oil from entering assign dedicated tools etc to each refrigerant type Under no circumstances must a gauge manifold and a charge hose in particular be shared with other refrigerant types R22 R407C etc Ouse a counterflow prevention adapter to prevent vacuum pump oil from entering the refrigerant system
190. s used to set the required operating mode The change does not need to be confirmed with the enter button The current operating mode is shown on the front panel display when the button is pressed and the mode changes when you continue to press the button The display returns to the normal display mode once the enter button is pressed The electric heater is only used for anti freeze if it is deactivated in the menu system for all operating modes There are different operating modes to choose 1 Auto HM270V automatically selects the operating mode by taking the outdoor temperature into account This means that the operating mode switches between Heating and Hot water The circulation pump is permitted to operate when there is a need 2 AutoC HM270V selects operating mode automatically cooling can also be selected now by the outdoor temperature This means that the operating mode switches between 29 Heating Cooling and Hot water The circulation pump is permitted to operate when there is a need 3 Heating Only heating and hot water mode The circulation pump is in operation the entire time Electirc heater is energized if necessary 4 Cooling Heat pump is used for cooling only if electric heater use is allowed Otherwise it is used for both cooling and hot water The circulation pump is in operation the entire time 5 Hot water Only hot water is produced
191. shifting to heating The compressor then runs at min frequency or at the frequency it had before hot water charging Setting range 3 60 min Default value 3 min Menu 9 6 7 S Max diff flow cFlow You can set the maximum overshoot of the supply temperature from the target Max deviation of supply temperature is controlled by this setting regardless of degree minutes value Setting range 2 0 10 0 C Default value 4 0 Menu 9 6 8 S CompFreq GMz Here you select a value for the dynamic in the degree minute regulator Setting range 95 127 Default value 126 Menu 9 6 9 S Return Return to Menu 9 6 0 Menu 9 7 S Reset alarm Select Yes here to reset acknowledge alarms in HM270V The settings returns to No once the action has been carried out Setting range Yes No Menu 9 8 0 S Alarm log The alarm logs with the last 4 alarms are shown in the sub menus of this menu Menu 9 8 1 0 9 8 4 0 S Log 1 Log 4 The alarm logs are shown in the sub menus of this menu Log 1 is the last alarm log 2 the next to last etc Control Control Menu 9 8 x 1 S Time Menu 9 8 x 2 S Alarm type Error code is displayed for details see page 103 Alarm Cause number 3 TB alarm 4 OU power failure 5 Low condenser out 6 High condensor out 7 Anti freeze HX 8 High HW temp 9 High AH temp 10 High supply temp system 1 11 High supply temp system 2 12 High return temp system 1 13
192. sor soft start control 1 Compressor protection start I Control condition Normally the compressor operation frequency is raised in following start pattern Control contents a Start the compressor at rps as target frequency However when the outdoor air temperature Tho A is 35 C or higher during cooling or higher during cooling or inlet water temperature is 48 C or higher and outdoor air temperature is 0 C or higher during heating it starts at C rps b At 30 seconds after starting compressor the target frequency changes to B rps and compressor is kept operation at B rps as fixed frequency for 2 4 minutes Operation Mode Arps rps C rps Cooling 55 55 30 Heating 55 55 30 2 Compressor protection start III Control condition The initial start up of the compressor after the power circuit breaker ON Control contents Operate by selecting one of following start patterns according to the operation mode and the outdoor air temperature Tho A a Low frequency operation control during cooling Control condition Upon establishing the conditions of compressor protection start III the low frequency operation control is performed during cooling Control contents D Start the compressor at A rps as target frequency However when the outdoor air temperature Tho A is 35 C or higher it starts at C rps D At 30 seconds after starting compressor the target frequency changes to B rps and compressor is kept operatio
193. stment Connecting an external contact for example a room thermostat accessory or a timer allows you to temporarily or periodically raise or lower the room temperature When the external contact is closed the heating curve offset or cooling curve offset is changed by the number of steps shown here If room control is active there is a degree change to the set room temperature Setting range 10 10 Default value 0 Menu 2 5 U Supply Return temp The current supply and return line temperatures are shown here Return temperature is shown in brackets Menu 2 6 U Degree minutes Current value for number of degree minutes In addition this value can be changed to accelerate the start of heating production or cooling Setting range 3200 0 3200 0 Default value 0 Menu 2 7 N Return Return to Menu 2 0 Control Control 3 0 N Supply temp 2 Menu 3 1 N Offset heating Tot 2 The heating curve offset 2 is selected here The total offset of heat curve 2 is also shown here It includes schedule outer compensation and any room control Setting range 10 10 Default value 1 Menu 3 2 N Heating curve 2 The selected heating curve is shown here At value 0 the function Own heat curve 2 is activated see Menu 3 6 0 Setting range 0 20 Default value 6 Menu 3 3 U Min supply temp 2 The set minimum level for the supply temperature for heating system 2 is shown here The calculated flo
194. supply water temperature of the heating system This is set under Menu 2 1 2 Heating curve Limitations which are not in the diagrams can be set in the control system s permitted min and max temperatures See Menu 2 1 4 and 2 3 as well as 3 3 and 3 4 Heating curve offset 2 HEATING CURVE 151413 12 11 10 o 70 5 9 5 60 8 7 om m m 50 6 E pee 40 4 gt 30 CO 2 5 2 1 10 0 10 20 30 40 5 Outdoor air temperature OFFSET HEAT CURVE Heating curve offset 0 HEATING CURVE C 151413 12 11 10 9 INN Supply water temperature wn 20 C 5 Outdoor air temperature OFFSET HEAT CURVE Heating curve offset 2 HEATING CURVE C 70 151413 12 1 Supply water temperature 5 Outdoor air temperature OFFSET HEAT CURVE For Home Owners Comfort setting heating Readjusting the default settings If the required room temperature is not obtained readjustment may be necessary Cold weather conditions m When the room temperature is too low the Heating curve value is increased in Menu 2 1 2 by one increment m When the room temperature is too high the Heating curve value is decreased in Menu 2 1 2 by one increment Warm weather conditions
195. ted if it is allowed by setting and the heat shunted out on the flow line Heating mode QM30 Closed QM31 Open QN11 Active during balance point A Hot water mode QM30 Open QM31 Closed QN11 System description Underfloor heating and cooling Underfloor heating and cooling Heo ting QM30 Closed QM31 Open QN11 Active below balance point A QM30 QM31 Closed QN11 Open Cooling QM30 Closed QM31 Open QN11 Open AB 1 7 Ref Pipe R4100 5 8 3 8 Insulated max 12m Flare connections Connections on top Alt Powersupply 5x2 Smm2 Fuse 16 208 4 way valve Connection on top 63H1 High pressure switch CM Compressor motor Alt2 CT Current sensor Powersupply 3xl0mm2 EEV C Expansion valve cooling Fuse 50A Floor Sor 8 7 Heating Cooling Pumpcopocity l s 016 ot 50 kPo 0 28 ot 42 kPa 0 39 at 27 kPa 0 5 ot 10 kPo Systemrequirement Systemvolume gt SOL 100L if underfloor cooling is used Non restricted flow xSuppytemp gt dewpoint room air See technical data for more info Expansion vessel min 14L not included EEV H Expansion valve heating Connection on top FMol Fan motor LPT Low pressure sensor Tho A Temperatu
196. ter or foreign matters may not enter the piping Bend a pipe to a radius as large as practical R100 R150 Do not bend a pipe repeatedly to correct its form Flare connection is used between the unit and refrigerant pipe Flare a pipe after engaging a flare nut onto it Flare dimensions for R410A are different from those for conventional R407C Although we recommend the use of flaring tools designed specifically for R410A conventional flaring tools can also be used by adjusting the measurement of protrusion B with a protrusion control gauge For rear connection For side right connection For front connection For downward connection Flared pipe end A mm m Copper pipe protrusion for flaring B mm Copper o m V Copper In the case of a rigid clutch type pipe outer A pipe outer diameter 0 4 diameter With an R410A tool With a conventional tool 6 35 9 1 6 35 9 52 13 2 9 52 0 0 5 0 7 1 3 12 7 16 6 _ 127 15 88 197 15 88 Tighten a flare joint securely with a double spanner Do not apply force beyond proper fastening Operation valve size Tightening torque Tightening angle Recommended length CAUTION CAUTION torque in tightening the flare nut mm N m of tool handle mm Do nat hold the valve cap area with a spanner Fix both liq
197. ter past the product s electronics to minimise the risk of damage If necessary a hose extension can be connected Hose to waste Connecting refrigerant pipes See Installation manual for outdoor unit Dockings General Installation requirements Installation Indoor unit installation Hydrolution can be connected in several different ways some of which are shown on the following pages Max pressure climate system 0 25 MPa 2 5 Bar Max temperature climate system 65 C Max temperature in HM270V 65 C Max temperature from external heat source 65 C Max supply temperature with compressor at outdoor temp 15 C 58 C Min supply temperature cooling 7 C Max supply temp cooling 25 Min volume climate system during heating cooling 50 2 Min volume climate system during under floor cooling 100 2 Max flow climate system 0 57 Q s Min flow climate system 0 15 0 5 Nominal system flow radiators 10 0 215 0 Nominal system flow under floor heating AT 5K 0 43 Nominal system flow fan convectors AT 10K 0 19 0 s Nominal system flow cooling AT 5K 0 38 0 5 Regards circulating volume 7 45 C 9 kW 35 7 8 KW External circulation pump must be used when the pressure drop in the system is greater than the available external pressure In such cases a bypass line with non return valve must be installed
198. the control PCB supports 144 Service Component replacement Inverter board PWB2 1 Remove the seven screws 2 Remove the control panel for inverter PCB U 3 Disconnect the contacts CNI2 Control panel PWB2 CNIA CNACT1 4 Remove the nine screws 5 Remove the nine supports 6 Remove the two screws 7 Remove the inverter PCB 2 screws 9 supports Power transistor 145 Components Component replacement Filter board PWB3 1 Remove the six screws 2 Disconnect the contact 6 screws 3 Remove the five supports 4 Remove the noise filter PCB 5 supports 146 Components Components 147 Components HM270V HM270V Circulation pump GP10 Dimensions 130 General NOTE The pump must not be operated dry as this damages the bearings extremely quickly Electrical connections Gay XA lt lt Ls When the electrical connection is correct the indicator lamp illuminates green continuously Disassembly 148 Troubleshooting Components HM270V Indicator lamp Cause Act
199. ting again immediately after stopping Outdoor unit doesn t restart during the first 3 minutes after stopping operation This is because a circuit for protecting the compressor is activated the fan is operating during this period The outdoor unit discharges water or steam during heating operation Water or steam is discharge during defrosting operation which removes frost built up on the surface of the heat exchanger in the outdoor unit in heating mode The outdoor unit fan is not running even when the system is in operation The fan speed is automatically controlled according to the outdoor air temperature It may be stopped in high outdoor air temperature in case of heating and in low outdoor air temperature in case of cooling Also the fan is stopped during defrosting operation GES fan will suddenly begin to operate even if it is stopped Do not insert finger and or stick Hissing sounds are heard when the operation is stopped or during defrost operation These sounds are generated when the refrigerant valve inside the air conditioning system is activated Operating mode Add heat only In the event of malfunctions that cause a low indoor temperature you can normally activate Add heat only in HM270V which means that heating only occurs with the immersion heater Activate the mode by holding in the operating mode button for 7 seconds Note that this is only a temporary solution as
200. tly stop if the protection is activated for 3 times within an hour 2 In defrosting mode Compressor stops when the low pressure BP4 reaches 5 Obar After stopping the system automatically restarts with heating mode but the period to prohibit defrost is reduced to 15 minutes When the above action is repeated for 10 times the system stops and error code is displayed Low condenser out Compressor stops when the supply temperature BT12 becomes below 5 C Compressor automatically restarts when the supply temperature BT12 becomes above 14 C but it will permanently stop if the protection is activated for 3 times within an hour Service Operation control function by the outdoor unit controller Operation control function by the outdoor unit controller Determination of compressor speed frequency 1 2 3 4 5 Required frequency under normal operating conditions Operation mode Cooling Heating Maximum required frequency 85rps 85rps Minimum required frequency 20rps 25 Maximum required frequency under high outdoor air temperature condition Maximum required frequency is selected according to the outdoor air temperature Tho A Outdoor air temperature Cooling 75rps is 40 or higher Maximum required frequency Outdoor air ehiperature eatin rps Heating 60 is 18 C or higher Minimum required frequency under condensing saturated temperatu
201. to Menu 1 0 2 0 N Supply temp Menu 2 1 0 N Heating settings Heating settings are made in the sub menus for this menu Menu 2 1 1 N Offset heating Total The selected heating curve offset is shown here The total offset of the heat curve is also shown here It includeschedule outer compensation and any room control Note The value is changed using the Heating curve offset knob Setting range 10 10 Menu 2 1 2 N Heating curve The selected heating curve is shown here At value 0 the function Own heat curve is activated see Menu 2 1 3 0 Setting range 0 20 Default value 9 Menu 2 1 3 0 U Own heating curve Here you can select your own curve definition This is an individual linear curve with one break point You select a break point and the associated temperatures Note The Heating curve in Menu 2 1 2 must be set to 0 to activate this function Menu 2 1 3 1 U Supply temp at 20 The supply temperature at an outdoor air temperature of 20 is selected here Setting range 0 C 80 Default value 20 Limited by Menu 2 3 Max supply temp Menu 2 1 3 2 U Supply temp at 20 The supply temperature at an outdoor air temperature of 20 is selected here Setting range 0 C 80 Default value 35 C Limited by Menu 2 3 Max supply temp Menu 2 1 3 3 U Buckling temperature Here you select at what outside air temperature the break point shall occu
202. ty valve with manometer The enclosed kit is located behind the front service cover in HM270V Installation Indoor unit installation Assembly m Itis recommended that HM270V is installed in a room with existing floor drainage most suitably in a utility room or boiler room m The surface must be firm preferably a concrete floor or foundation m Install HM270V with its back to an outside wall ideally in a room where noise does not matter If this is not possible avoid placing it against a wall behind a bedroom or other room where noise may be a problem m The unit can be aligned using the adjustable feet m Route pipes so they are not fixed to an internal wall that backs on to a bedroom or living room m Ensure that there is approx 500 mm free space in front of and 220 mm above the product for any future service Dimensioning expansion vessel Internal volume in HM270V for calculating expansion vessel is 280 1 The expansion vessel s volume must be at least 5 of the total volume Initial pressure and max height difference The initial pressure of the pressure expansion vessel must be dimensioned according to the maximum height H between the vessel and the highest positioned radiator see figure An initial pressure of 0 5 bar 5 mvp means a maximum permitted height difference of 5 m If the standard initial pressure in the pressure vessel is not high enough it can be increased by filling via the valve in the ex
203. uid and gas service valves at the valve 963949 14 18 52 00 150 main bodies as illustrated on the right and then 9 52 Va 34 42 30 46 200 Use a torque wrench If a torque wrench is not available fasten them applying appropriate fastening torque 127 2 49 61 30 45 250 fasten the flare nut manually first and then tighten it 15 88 5 8 68 82 15 20 300 further using the left table as a guide 5 Air tightness test Although outdoor and indoor units themselves have been tested for air tightness at the factory check the connecting pipes after the installation work for air tightness from the operation valve s check joint equipped on the outdoor unit side While conducting a test keep the operation valve shut all the time a Raise the pressure to 0 5 MPa and then stop Leave it for five minutes to see if the pressure drops b Then raise the pressure to 1 5 MPa and stop Leave it for five more minutes to see if the pressure drops c Then raise the pressure to the specified level 4 15 MPa and record the ambient temperature and the pressure d If no pressure drop is observed with an installation pressurized to the specified level and left for about one day it is acceptable When the ambient Temperature fall 1 C the pressure also fall approximately 0 01 MPa The pressure if changed should be compensated for If a pressure drop is observed in checking e and a d a leak exist
204. ulating material and a pipe tightly together so that no gaps may be left between them and wrap them together with a connecting cable by a dressing tape Both gas and liquid pipes need to be dressed with 20 mm or thicker heat insulation materials above the ceiling where relative humidity exceeds 70 g causing damage to household effects etc All gas pipes must be securely heat insulated in order to prevent damage from dripping water that comes from the condensation formed on them during a cooling operation or personal injury from burns because their surface can reach quite a Since R410A refrigerant must be charged in the liquid phase you should charge it keeping the container cylinder upside down or using a refrigerant cylinder equipped with a siphon tube port with the operation valve shut When you find it difficult to charge a required amount fully open the outdoor unit valves on both liquid and gas sides and charge refrigerant from the In doing so care must be taken so that refrigerant may be discharged from the cylinder in the used to protect the compressor however adjust charge conditions so that refrigerant will gasify upon entering the unit phase all the time When the cylinder valve is throttled down ient quantity of refrigerant for a long time can cause a compressor failure Band Pipe cover Wires connectin and outdoor units Liquid piping indoor Exterior tape Gas piping
205. ure sensor Has the fault been corrected NO Replace the control PCB YES 130 Service Information about the installation E57 Low refrigerant Are the service valves fully open NO Open the service valves YES 1 Is the connecton of the sensor for indoor heat exchanger temperature BT15 or for inlet water temperature BT3 OK YES Defective the sensors for indoor heat exchanger Are the characteristics of the sensor for indoor heat exchanger NO temperature BT15 or for inlet water temperature BT3 OK temperature or inlet water temperature replace YES I Is the low pressure normal during operation NO Top up refrigerant YES Defective control PCB replace 131 Service Information about the installation E59 Inverter error Disconnect the outdoor fan motor connector and try to startup Does compressor startup NO Is power supply voltage OK NO Check power supply YES Defective fan motor replace YES Is the pressure balance at starting Check refrigerant amount and OK NO refrigerant circuit YES Is the insulation resistance and coil resistance of compressor OK NO Defective compressor replace YES Is power transistor module OK NO Defective inverter PCB replace YES Is the inverter output OK NO Defective inverter PCB replace YES Try to startup seve
206. ure sensor immersion heater OX 0 24 Temperature sensor external heat source oll BT30 Thermostat standby mode 35 4510 adjustable 63H1 4 Expansion vessel Tho CPI Buffer vessel RI Def Cool cw Sanitary cold water inlet POSTE BT19 EBI Immersion heater 9kW 3 phase FMO1 cT 3 2 Heat exchanger L L Heo ting FDI Temperature limiter 98T FLI Safety valve HW EEV H C FL2 Safety valve tank 2 5 Bar Tho Re EEV FQI Mixing valve HW E e e Circulation pump climate system variable flow FD1 BT30 GP10 Circulation pump external 1 Heating HQ1 Strainer water 0 8mm2 HSI Filter dryer refrigerant bi flow 083 Def Cool HW Sanitary hot water outlet subs MH RG10 Room sensor MH RG10 accessory QM30 Reversing valve hot water 2 way 35sec Indoor unit 3 Reversing valve climate system 2 way 35sec Mixing valve 3 way ball type 35sec Heating mode The heat pump prioritises hot water charging The compressor QM30 Closed output is adjusted according to the outdoor temperature The QM31 Open circulation pump varies the flow to maintain a high charge QN11 Active during balance point A temperature QNI2 Open A When the water heater is full the valves QM30 and QM31 switch to the heating system The heat pump is then controlled by a calculated set point value on the flow line The compressor varies the output according to the demand The circulation pump runs at a
207. utput according to the demand The circulation pump runs at a fixed set speed QN12 Open A Hot water mode QM30 Open QM31 Closed QNI1 Open AB Cooling mode QM30 Closed QM31 Open QN11 Open AB QNI2 Open Installation requirements See page 69 System description Underfloor heating and fan convectors heating and cooling Underfloor heating and fan convectors heating and cooling ing Fancoil QN12 Cooling Heating EP21 QN11 Tempcontrol eran vs EP21 GP10 EP21 BT2 QM31 Open MH RGI0 Required 7x 35 Active below balance point External to FC Cooling Punpcapacity GPI 4757 B A QN12 Open A Fancontrol 016 at 50 kPa External to FC 0 28 42 kPa TER Hotwatermode Drainage amp piping insulation x 039 ot 27 kPo QM30 Open 05 at 10 bPo QM31 Closed CP1 Systemvolume gt 50L UNIT pen AB Non restricted flow Cooling 12 30 0 30 Closed 7 EP21 BT3 QM31 Open Open 2 D 1 2 H BPS FLe 6 Hv GM31 BT12 Expans
208. utput on knob R25 Check the value in Menu 8 3 2 Select the desired heating curve in Menu 2 1 2 and set the parallel offset using the knob Check that the hot water temperature in Menu 1 0 exceeds 256 When point 12 has been carried out select operating mode Auto The heat pump starts 30 minutes after the outdoor unit is powered if there is a heat demand Setting system flow heating 1 Ensure that the heat pump produces heating for the climate system 2 Select On in Menu 9 6 2 3 Select 40 in Menu 9 6 1 NOTE If it is not shown set the Menu 8 1 1 to Service 4 Check the supply and return line temperatures in Menu 2 5 Adjust the circulation pump speed in Menu 2 1 5 so that the difference between these temperatures is according to the diagram below 5 Select Off in Menu 9 6 2 AT 12 N supply and return water temperatur n Difference between 0 5 10 15 20 25 Outdoor air temperature C D n Setting system flow cooling The factory setting 100 in Menu 2 2 5 is recommended Commissioning HM270V without FDCW100VNX connected HM270V 1 Check that the temperature limiter FD1 has not tripped 2 Switch on the main circuit breaker and check that the miniature circuit breaker FA1 in HM270V is on 3 Set switch SF1 to 1 Select operating mode heat only
209. w temperature never drops below the set level irrespective of the outdoor temperature heating curve or its offset Setting range 10 65 Default value 15 C Menu 3 4 U Max supply temp 2 The set maximum level for the supply temperature for heating system 2 is shown here The calculated flow temperature never exceeds the set level irrespective of the outdoor temperature heating curve or its offset Setting range 10 C 65 C Default value 45 C Menu 3 5 U External adjust 2 Connecting an external contact for example a room thermostat accessory or a timer allows you to temporarily or periodically raise or lower the room temperature When the external contact is closed the heating curve offset or the cooling curve offset is changed by the number of steps shown here If room control is active there is a degree change to the set room temperature Setting range 10 10 Default value 0 Menu 3 6 0 U Own heating curve 2 Here you can select your own curve definition This is an individual linear curve with one break point You select a break point and the associated temperatures Note The Heating curve in Menu 3 2 must be set to 0 to activate this function Menu 3 6 1 U Supply temp at 20 The supply temperature at an outdoor air temperature of 20 is selected here Setting range 0 C 80 Default value 20 Limited by Menu 3 4 Max supply temp 2 Menu 3 6 2 U Supp
210. when extra hot water should be activated Hours and minutes for both start and stop are shown Equal values mean that extra hot water is not activated Time can be set past midnight Setting range 00 00 23 45 Default value 00 00 00 00 Menu 7 4 8 U Return Return to Menu 7 4 0 Control Control Menu 7 5 0 U Vacation set back Holiday settings are made in the sub menus to this menu When the holiday function is active the calculated supply line temperature is reduced according to the setting and hot water charging can be switched off When the holiday function is deactivated the heat pump operates hot water for an hour before periodic extra hot water is activated even if periodic extra hot water is actived in Menu 1 7 Note The holiday setting does not deactive cooling Menu 7 5 1 U Vacation begins The start date for holiday changing is set here The date is changed by pressing the enter button The holiday change starts applying at 00 00 on the selected date Same date in Menu 7 5 1 and 7 5 2 deactivates the holiday function Menu 7 5 2 U Vacation ends The end date for holiday changing is set here The date is changed by pressing the enter button The holiday change stops applying at 23 59 on the selected date Same date in Menu 7 5 1 and 7 5 2 deactivates the holiday function Menu 7 5 3 U Heating system The heating system to apply the Vacation set back is selected here If heating system 2 is pr
211. with the Enter button Key lock activated Plus button Scroll forward in the menu system Increase the value of the selected parameter Menu 1 0 Pressing the button takes you directly to menu 1 0 See the section Control General Minus button Offset heating curve Turning clockwise offsets the Heating curve When the knob is turned menu 2 0 is shown on the display and the value for the calculated supply temperature changes For details see Default Heating curve setting Scroll back in the menu system Reduce the value of the selected parameter See the section Control General Enter button Entering lower layer in the menu system Parameter change activated Switch Parameter change confirmed 1 Normal mode control functions connected See the section Control General 0 Shutdown Status lamp During normal operation the status lamp AS Emergency mode lights green In the event of an alarm it Only the circulation pump and electric heater electrical step 2 are operational lights red How to use the front panel All the most common settings are made from the panel such as comfort etc that you require the heat pump system to fulfil In order to make full use of it certain basic settings must have been made see page 11 and the installation in general is carried out according to the instru
212. wo sets of climate system can be controlled with different heating curve See Menu 3 1 3 7 for setting Service Operation control function by the indoor unit controller duro gt duu uni JO GT Lg ueuA ISOIJOG 9JON Ve aves 5101195 Jo uodo poso PSI NO 440 440 440 440 8 n uwopinus P so O uedo NO 7 asogoq d ps 440 NO NO yeoy pun 100pjno jsogeq u do p solo 440 jsogjeq IA INA lt uedo peso 8 NO NO J4O NO 440 440 Joyem jog PPV p solo SuneoH Zu Suronpoiq 440 NO 440 440 Suiddo s Ve 5 udo 9 lt 9 Joyem 104 peso 2 posojo NO NO NO NO JOH SuronpoJq IIM e D 19 eA 10 8 aves uod uodo poso o gen NO Jojeou 1 pue Zujoo o poser Sui ooo soonpoud 440 AJO NO 440 0 801000 100pjn poso o OY pue de ave ndo 3 070 NO 440 JdO NO ddO NO 8ut ooo usoAjaq 371000 uodo peso AiO J syioddns udo p so O SC NO NO NO NO NO Suneod PON Poul poser soonpoud nun posojo uedo 19jEM JOH jou pue oS NO 440 J4O NO J4O NO

AIR TO WATER HEAT PUMP TECHNICAL MANUAL

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