User's manual
Contents
1. O oo o ol Outdoor Unit mm Refrigerant connector dimension 96 35 amp 012 7 Air out IMeNSIONS W W 1 5 Outlines and d z D Outdoor Unit mm Refrigerant connector dimension 99 52 amp 012 7 E 1 6 Specifications E AVH 12V1D me ak Function Cooling Heating Powersupply Single phase220 240V 60Hz iPH_ Cooling heating capacity Working range in heating 25 C 33 C Water outlet temp TCB C Ko fo 8S voor 18 5 Budo o O OB Do 7 as Noise Outdoor unit 4B MM Fanspeed outaoorunt rem so Refrigerant Ke 0 845 R410A_ _ others F Roomtempsensor ko seso indoor coil temp sensor Ko 5K 25T Outdoortemp sensor Ko 5K 250 Outdoor coil temp sensor KO 5K 25C SOK 257 Rated condition of test Cooling water inlet 12 C water outlet 7 C outdoor dry bulb 35 C wet bulb 24 C Cooling water inlet 30 C water outlet 35 C outdoor dry bulb 7 C wet bulb 6 C The specifications air subject to change without prior notice For actual specifications of the unit please refer to the specification stickers on the unit 10 E 1 6 Specifications E AVH 24V1D r S S Function Cooling Heating Power supply _ Single phase220 240V 50H2 1PH Cooling heating capacity Btu h Outdoor Dimension Water connector Indoor Outdoor indoorunit s o Noise Outdoorunit 4B SSA Volume flow ma2. Before operation this product please read the instructions carefully and save this manual for future Thank you for choosing our quality product Please read this manual carefully before use and follow the instructions to operate the unit in order to prevent damages on the device or injuries to staff Specifications are subject to change with product improvements without prior notice Please refer to the specification sticker on the unit for upgraded specifications Working and storage temperature range Working temperature range 25 C 55C Storage temperature range 30 C 60 Power supply 220V 50Hz 1Ph Content 1 Before use 1 1 Safety precautions sei ei tae eee a Sh ee are eee ae 1 1 2 Features and advantages eC eee eee ee ee ee ee eee eee 3 1 3 System sketch TTT TCC ee ee ee eee ee ee ee ee ee ee ee ee 4 1 4 Main components Ce ee ee re ee ee eee 5 1 5 Outlines ANd GIMENSIONS 62ers eerie thee 8 16 SPEC IIC ALONG senses tides ent as 10 1 7 Exploded Vie Warts ctente reer SEERE SEERE i eee seats 12 Rca Mam functions arser ee ee ee eee 16 1 9 Water DUMP errr eter ttt ee 20 2 Installation 24 System ore e T 24 2 2 Installation PreCaUtiONS eee este eee eee e eee eee 22 VC Noleltor iio Eee ee a eee 24 2 4 Vactallat Oiiasi lt otsescotsatasrtuscarcnedetusestanteostaseaney 26 2 5 Application of the extra sensor Kit esse tree 32 2 6 Control of external electric heater 34
3. 1 Check whether the sensor connection gets loose Fasten it 2 water outlet Temp sensor 2 Wire connection between wired controller and PCB open or short circuited 3 water outlet Temp sensor resistance drifting failure 1 Check whether the sensor connection gets loose Fasten it 2 Wire connection between wired controller and indoor PCB open or short circuited 3 Temp sensor resistance drifting temp sensor resistance drifting 3 Coil Temp sensor failure 1 Check whether port gets loose Fasten it Communication failure 2 Change the PCB 3 Change the outdoor PCB 1 Check whether PFC transducer gets loose Fasten it 2 Change PFC transducer Compressor drive failure IPM failure IPM protection overload drive protection Fa Current or Voltage detector failure 1 Change PCB Check whether EEPROM gets loose EEPROM failure pe it 2 Change EEPROM 3 WE 4 2 Maintenance 1 Check the water flow of the unit Too highr coil Temp in heating 2 Too high ambient and water Temp Reduce the set water Temp 1 Check the water flow of the unit Too high pipe Temp in cooling 2 Too low ambient and water Temp Increase the set water F6 Temp 1 Check the water flow of the unit Over current protection 2 Too high low ambient and too high low set water Temp Decrease or increase the set water Temp i 1 Check the voltage of the power supply Too high or too low voltage 2 Change the outdoor PCB i 1
4. Vag ag DUN SE eee Eee 36 2 9 Pro Start U Deserria AE 38 3 1 Introduction of operation panel ssssssssssrssssrrssrrrsrs 39 3 2 Operation AE ELIE OR 665 42406 00005 5405408 cee uhebanentteccues 40 74 Maintenance A 4 Maintenance A FIFE ER ss ERE cat eee eee ane 43 2 Maintenant lt 626xto8 be RER DES EN wae EDER EEN ee eee es 44 4 3 Trouble shooting Cite ee eee ee ee eee ee ee cee ees Cees 47 5 Wiring diagram 5 1 Wiring diagram E I E r ER ENE SER seas 50 WE 1 1 Safety precautions When the unit is not running in the winter it is necessary to leave the power supply connected for Anti freezing protection In cold weather below 0 C when the unit is no longer needed do drain out all the water inside the system refers to page 47 WE Accessories On receiving the equipment please check whether the following accessories are inside the package AVH 12V1D AVH 24 Accessories List Name Quantity Remarks Extra sensor kit For detecting the room temperature Locating Cardboard For locating the installation position Rubber gasket For anti vibration purpose E Safety precautions symbols used E Pee eee seats Warning Suggestion oo cee eee ee ee eeee Prohibition any changes to the structure of the unit Otherwise injury of person or unit damage might happen i The installation dismantlement and y maintenance of the unit must be performed by qualified personnel It is forbidden t
5. for keeping the water quality and collecting impurity contained in the water Take care to keep the water filter mesh towards the bottom Check valve is recommended to be installed at both sides of the filter so as to clean or change the filter in a easier way Heat pump water inlet CTT 7 Shield the unit from direct sunshine rain TTS or snow but never cover the unit which will mii cause the bad ventilation Tt 72 72 W 2 2 Installation precautions 8 Please install the drain connector to the unit when necessary In some cold areas temperature below 0 please don t use the drain connector otherwise it may clogged by ice 9 Install the unit and water tank close to each other as much as possible to reduce the distance between them so to reduce the energy loss 10 The unit should be free from corrosive and moisture surrounding Otherwise the lifetime of the unit might be shortened 11 Keep the water system with proper water pressure Add a external pump if the pressure inside is too small 12 If the ambient temperature can be lower than OC in winter ensure that the whole system is protected against freezing When using glycol solution make sure that the water glycol mixture is well proportioned 2 3 W 2 3 Applications Applications Application 1 This installation is for supplying sanitary hot water only Sanitary hot water City water inlet
6. 0 O CN426 CN428 CN429 CN427 CN414 CN405 CN404 O O CN417 CN418 HEAT1 4 WAY HEAT2 FAN Dc DC NATS connect to ACN the indoor unit P7B P10 3 P10 2 P10 1 P6B DC W V U DC Module board DC DC CN415 CN416 Q Q Outdoor PCB P7C pbc L AC L AC N P14 P11 P12 DC P6C C_ Josuas dwo sneyx3 6 JUSWUOIAUZ gA Josues dw Josues dw adiq WU PFC Reactance AVH 12V1D indoor unit Power supply PCBBOARD 1 01 UO09 PdJI AA yun JOOP NO 0 aaUUOD CN205 CN207 CN208 YO IMS d ybiH dw9 9 NO Jojem dwa jUI Ja eM aunssel TAKE CARE This diagram is correct at the time of publication Manufacturing changes could lead to modifications Always refer to the diagram supplied with the product 5O Hi 1 Wiring diagram AVH 24V1D outdoor unit COMPRESSOR CONDENSER HEATER FAN MOTOR i TN HEATER 4 way valve OO FM e A Sk i N P8 VAL TO INDOOR UNIT CJ ae P7B TT 2 P6B DC W DC AC N OUTDOOR MODULE PCB s CN5B m s YLW GRN e cS OS S N L POWER SUPPLY OUTDOOR PFC PCB P7C peL AC L AC N P14 P11 P12 pc F P6C 5 YOSNES WAL Udldg La XOSNAS dhl INTIM 3 ae HOLINS SUNSSIYd HOTH YOSNAS ANAL SV F9
7. AC POWER SUPPLY TO OUTDOOR ACN CN209 ACL CN204 S CN212 TO WIRED CONTROLLER en Kaw 1 TEVAP TWO TWI W KEY SWITCH cx215 CN201 CN203 CN2024 CN211 CN221 NA ES Es TO ELECTRIC HEATER POWER 00 OLIMS MOTA ALVA YOSNAS AdId 1 WATER ELECTRIC HEATER BREAKER VALVE J gt 6 YOSNAS LIINI YALVA Z 8 Pn E 68 YOSNAS LATO ALVA NOTE BROKEN LINE PARTS IS ADDITIONAL NEW FUNCTIONS NOTICE electric heater must be less than 0 75x30x220 4950W AlddS UMOd LVIH ITALIA WIRING DIAGRAM B R120800 AC POWER SUPPLY ACN CN209 ACL CN204 S CN212 TO WIRED CONTROLLER O OUTDOOR ah WAVE TEvap TWO Twi V KEY SWITC 201 CN203 CN202 CN211 CN221 ARR PEA TO ELECTRIC HEATER POWER YOSNAS AdId 7109 YLW GRN ELECTRIC HEATER BREAKER L Q JOSNAS L410 YAIVA a MOSNAS LA INT AHLVM 1 GRN Dump NOTE BROKEN LINE PARTS IS ELECTRIC HEATER ADDITIONAL NEW FUNCTIONS The rated current of this extra contactor must be CONTACTOR bigger than the maximum current of the electric PLA gt 30A heater eee ae AOZZOV NIddS WaMOd N UHLVHH OTALDHTS E 2 7 Air purging Piping connection figure Check Valves 2 Filte
8. Check the pressure of the system F8 Pressure switch failure 2 Change the pressure switch 1 Check whether EEPROM gets loose F9 EEPROM failure Fasten it 2 Change outdoor EEPROM Ambient temp sensor failure 1 Check whether the sensor connection gets loose Fasten it Fb Pipe temp sensor failure 2 Wire connection between wired controller and PCB open or short circuited Compressor discharge temp 3 Temp sensor resistance drifting sensor failure 1 Measure the high low pressure switch with a Fo System protection caused by too multimeter to check whether it is shirt circuited or open high low pressure If yes change it 2 Check the water flow of the unit 1 Check the ambient Temp sensor System protection caused by the 2 Check whether the ambient Temp is too high low for ambient Temp working Ambient lower than 1 Cor higher than 65 C in cooling lower than 25 C or higher than 33 C in heating E Maintenance 1 lt is forbidden to change the inner structure and wiring of the unit Otherwise injury of person or unit damage might happen 2 f the unit fails to work properly please cut the power supply immediately The maintenance work must be performed by qualified people 3 Failure check list in this manual is helpful to find out and fix the failure of the unit 4 After long time running the evaporator coil may get dirty which will affect the performance of the unit It is suggested to clean the surface of
9. _2 0 EH 2 1 System figure W System figure drainage connector Filter FEE ET Hot water pipe Ska Wal ee City water pipe Valve WE Installation precautions 1 The installation dismantlement and maintenance of the heat pump must be performed by qualified personnel 2 The unit must be installed outdoors in o me Minimum space left an area with sufficient a lt clearance to provide free air circulation through the coil Please refer to the following figure to choose the right ve O saa place for the unit woQGg lt gt 30cm Minimum distance from the front l gt 50cm Minimum distance from the back 21 W 2 2 Installation precautions 3 The indoor unit should be lt hang on the wall and keep the water connector downwards 4 The outdoor unit should be placed at least 2M from the lampblack outlet of kitchen to keep the unit clean 5 All the hot water pipe and water connections should be insulated to reduce the energy loss 6 A mesh filter must be installed in front of the water inlet of the unit and water tank
10. activate parameter setting process when parameter flickers User can set its value with button A jor vw Press set again to confirm the setting work otherwise the setting Value will not be saved and the system will exit this parameter Setting program automatically in 10 seconds or by pressing Parameter 1 Parameter 2 Parameter 3 Parameter 1 indicates the This parameter has Parameter 3 indicates the local time The time is A han etion inthis duration time for back light It always presented in the can be set to 00 10 20 and 30 24 hour system unit While 00 means the back light is always ON and 10 20 and 30 means the duration time for back light is 10 seconds 20 seconds and 30 seconds At E 3 2 Operation instruction To set the ON timer press button F turns on and blinks Press 4 to set the timer in hours and W to set the time in minutes After it is done press set to confirm the ON timer setting and enter the OFF timer setting with blinks Set the OFF timer by pressing a and v After this done press set to confirm the OFF timer setting with amp shown on the operation panel indicating that the timer setting is finished If the ON timer or OFF timer setting is not confirmed by pressingj se1 the setting value is not saved The timer setting can be cancelled by keeping on pressing O with fading from the operation panel ATimer ON ATimer OFF Timer ON setti
11. also provides one of the highest energy efficiency ratings in the industry Output of the compressor and therefore the energy input requirements are constantly monitored and adjusted at the most optimum level for the given indoor and outdoor environmental conditions and the user s desired demands from the system M Microprocessor control system contains several enhanced software features to make the operation of the system most advantageous and pleasing under varying environmental conditions M Special vibration absorbers on the compressor allow operation of the system with ultra low noise M Microprocessor is programmed to allow operation under wide range of input voltages from 160V 260V and soft starting with lower current draw at each compressor start up M Auto restart function keeps all settings in memory and automatically resumes the operation after a power failure M Compressor crankcase heater and bottom plate heater are available as options for extreme cold conditions enabling the unit to work in very low ambient temperatures with much lessened defrost frequencies Both these optional heaters are electronically controlled based on the outdoor ambient temperatures and a sophisticated logic M Programmable timer function provides unattended operation of the system M Acrylic coated enhanced aluminum fins on the coil heat exchanger extends the fin life against corrosion and allows easier rainwater wash down as well as faster
12. ensure it won t get lossen 1 Take offthe screw on the side of 2 Open the indoor unit the unit 3 Take off the cable fixture and 4 Connect the power cable to the insert the power cable through the terminal block fixture customer can choose Please refers to the wiring diagram which cable fixture is more on the indoor unit convenient the one on the top or the one on the bottom of the unit J 8 W 2 4 Installation 5 Fix the cable with cable fixture to 6 Take off the screw on the handle of ensure it won t get lossen the outdoor unit 7 Take off the small handle 9 Connect the other side of the power cable to the outdoor unit according to the wiring diagram 10 Fix the power cable 11 Wiring done 2 9 W 2 4 Installation E Connection of refrigerant pipe Connector for Note When vacuuming the system refrigerant pip please don t turn on the high low pressure valve Otherwise refrigerant leakage Connector of High Low vacuum pump _ Pressure valve 1 Connect the refrigerant piping to the 2 Connect the other side of the indoor unit refrigerant pipe to the outdoor unit 3 Avacuum pump and pressure 4 Take off the copper nut on the high gauge is needed Connect the pressure connector of the unit pressure gauge to the vacuum Connect the other pipe of the pressure pump gauge to the valuve as shown in the picture Open the pressure gauge and start the vacuum
13. pump 30 W 2 4 Installation 5 Vacuum the unit for at least 15 6 Use a5mm hex wrench to open two minutes till negative value shown on valves on the unit as shown in the the pressure gauge Turn off the picture vacuum pump and install the cooper nut back to the high pressure connector Note Small leakage may happen during the process This is caused by the shape change of the o ring inside due the low temperature Leakage stops once the valves are fully opened 7 Put the copper nut back Tighten them with a wrench It is recommended to check the leakage with some suds water after installation 31 EH 2 5 Application of the extra sensor kit E Application of the extra sensor kit When the customer use our heat pump unit for house heating purpose only he can connect this extra long temperature sensor kit to our wired controller so the unit can read the room temperature In this way the unit can provide hot water to the house heating an system when the room Size of the kit 85 85 30 mm temperature doesn t get the set value or stop providing hot water when room temperature meets the set value How to install the room temperature sensor kit 1 Take the short room temperature sensor out from the indoor unit 2 Open the box of the room temperature sensor kit 3 97 gt Hi 2 5 Application of the extra sensor kit 3 Put the short room temperature se
14. weather enclosure The refrigerant piping and signal cable between indoor amp outdoor unit should go through the wall by using a wall sleeve 2 WE 2 4 Installation E Outdoor unit installation 1 The unit must be located on a flat solid preferably cemented surface 2 when installing the unit introduce a tilt of 1cm m for rain water evacuation 3 when installing the unit in harsh climatic conditions sub zero temperatures snow humidity it is recommended to raise the unit off the ground by about 20cm 4 ltis recommended to have a base with following size for these units 5 Rubber vibration absorbing mountings are recommended 6 When sitting the unit take care to leave sufficient free space all around it for carrying out maintenance oo e Ji 1028 1094 me oo 1 Fix the bracket on the wall with expansion bolts 2 Place the outdoor unit on the bracket A vibration absorber is recommended to reduce the noise of the outdoor unit 3 Fix the unit to the bracket fA Y CLEA LLL J W 2 4 Installation E Wiring Precaution 1 lt is recommended to use a suitable breaker for the heat pump and make sure the power supply to the heater corresponds to the specifications Otherwise the unit might be damaged 2 The power supply to the heat pump unit must be grounded 3 Cable should be fixed tightly to
15. Drainage Sanitary hot water Application 2 This installation is for supplying floor heating hot water only Pump 1 Floor Heating City water inlet Drainage Floor Heating 2 4 W 2 3 Applications Application 3 It provides both floor heating hot water and pre heated sanitary water Pre heated City Water Pump1 we Floor Heating City water inlet Drainage Floor Heating and Pre heated Sanitary Water Application 4 It provides hot water for central house heating and hot water system Solar collector ee Sanitary Water Hi Temp ce eats Pump 3 Room femp 1 Q I a M AR 3 Tii w Radiator MT SS Room Temp 2 BEREDTE Pan gt Floor Heating ez E NE City water inlet Drainage Heat Pump and Solar System for Heating amp Sanitary Water 25 Hi 2 4 Installation WE Indoor unit installation For the installation of the indoor unit please refers to the followings Locating cardboard 1 Use the locating cardboard to 2 Drill the holes on the wall mark the positions of the indoor unit on the wall AE Expansion bolt 3 Insert the expansion bolts Terminal 4 Hang the indoor unit on the diameter less than 16mm into the expansion bolts holes Note The wall must strong enough to hang the unit on
16. N E 3 2 Operation instruction Set temperature When changing the set temperature FNS is ON ON When timer function is activated 9 GER Timer function a gis ON WE Operation instruction The unit is standby when it is fed with power X The unit will clear its clock time when power failure happens The customer needs to set the time again When the unit is standby press amp to turn on the unit The unit will work in its last working mode Press again to turn off the unit X The unit will recover its latest working settings automatically after power failure Mode selection Keep on pressing M button to choose water temperature or air temperature as the set temperature When water temperature works as the set temperature is ON When air temperature works as the set temperature is OFF Mode selection Press M to choose the unit operation mode It comes in the sequence 38 Heating 3k Cooling 4 Hot water Q E 3 2 Operation instruction Temperature setting When the unitis ON press a jonce the set temperature increases by 1 C press V once the set temperature decreases by 1 C Keep on pressingla ior Y the temperature can be increased or decreased by 5 When changing the set temperature IS ON Parameter setting When power is fed and unit is off press a or v to choose target Parameter Presssetto
17. UYHOSTG GH PFC REACTANCE AVH 24V1D indoor unit Power supply CN209 cN204 z Z n DEN RE CN212 S L PCB Board 1 014 U09 p JIM 0 2 UUOI yun 100p no 0 Jaauuoa CN205 CN207 CN208 yi Coco cc E a ge a 9 N 2 c Sy 9 n S o dw9 9 NO 1976M dw 9jul Jaye Josuas dw 109 TAKE CARE This diagram is correct at the time of publication Manufacturing changes could lead to modifications Always refer to the diagram supplied with the product 5 1 R120400138 V1 1
18. a minimum reference basis 1 Make sure fan rotates freely 2 Inspect all water piping for flow direction 3 Verify all system piping is correct for operation as per installation requirements 4 Check voltage of the unit power supply and make certain voltage is within authorized limitations 5 Make sure the unit is properly grounded 6 Check the presence of protective and breaking devices 7 Check all electric connections for tightness 8 Check all piping for leaks and air is well ventilated Unit Start up After ensuring all electric connections conform to the local regulations follow the Operation Instructions to start up the unit After start up the unit if there is a abnormal sound please shut off the power supply immediately to ensure the safety of the unit 3 8 E 3 1 Introduction of operation panel WE Introduction of operation panel Water Temp Set Temp Outside Temp ON OFF oO MA v LO Timer Confirm Key Lock Down regulation ok When the unit works in cooling mode amp is ON When the unit works in hot water mode 4 is ON Defrosting When the unit works in defrosting amp is ON CD a Key lock When buttons are locked is ON Parameter ae setting When parameter setting is activated SE is ON value orcode To display temperature timer parameter error code and so on Time The unit will clear its clock time when power failure happens When water temperature mode is activated _ lS O
19. defrosts Hi 1 3 System sketch M Copper tubing in all heat exchangers are made by using the latest developments in the technology of inner grooved tubing by extending the area of heat exchange ina more compact coil therefore increasing the operational efficiency E System sketch Power input Compressor Four way valve Three way valve Filter Expansion valve Refrigerant Filter gear pump Heat exchanger Outdoor unit Hot water outlet Water tank Cold water inlet Indoor unit E 1 4 Main components E Main components Expansion valve Heat exchanger 4 way valve Water pump Pressure switch E 1 4 Main components E AVH 12V1D Water Outlet Water Outlet Wired Controller YOutdoorg Handle Refrigerant Connector Air Inlet E 1 4 Main components Lem D G Cc O O Jo 6b Refrigerant Connector Water Outlet Cable Fixture F R E AVH 24V1D Outdoor Refrigerant Connector oO D gt D rad Y Y pan oO 1 5 Outlines and dimensions E AVH 12V1D Unit mm 000 SE 500 50 124 1 i a aa T O 200 00S
20. e Wirecip 21 Electronic Expansion Valve o Botonm piate 22 EVO ris Fwayvavec E 1 8 Main functions E Memory function The unit will recover its latest working settings automatically after power failure The compressor restart interval time is 3 minute to protect the compressor E Compressor preheating When the unit is powered on the first time and the compressor is not working if outdoor ambient temp is lower than 5 C compressor starts to preheat by itself After compressor works 3 hours after it stops if outdoor ambient temp is lower than 3 C compressor starts to preheat by itself When compressor is in preheating if outdoor ambient temp is over 0 C or unit needs to start the compressor compressor preheating stops E Output for external electric heater When system runs in heating mode heat pump ambient temperature is below 10 C and compressor has been running for 25 minutes the controller will check the system every 15 minutes The auxiliary electrical heater turns on when below conditions are met A Compressor has been running at its highest speed B Set temperature is 3 Chigher than water temperature C Water temperature rises less than 1 C in over 15 minutes When water temperature reaches the preset value and keeps stable for 1minute or compressor stops running this auxiliary electrical heater turns off when system begins to do the checking as above E Limit on Water outlet te
21. e coil with clean water 6 An old hairbrush works well for brushing surface dirt and lint off the fins Brush in the same direction as the slots between the fins so the bristles go between the fins 7 After cleaning use a soft and dry cloth to clean the unit Gas Charging even under severe operating conditions If your unit needs recharging then it has aleak and adding refrigerant will not solve the problem The leak must be located and repaired 1 Gas charging must be performed by qualified person 2 One can find out whether the system has enough refrigerant inside by checking the low pressure inside the system 46 I 4 3 Trouble shooting Cleaning of the filter The Y filter must be cleaned occasionally to ensure the water flow of the water system Drainage please follow the instruction to drain out the water 1 Shut off all the water inlet 2 Drain out the water in the water system by opening the water tap at the highest position of the system 3 Drain out the water in the tank by opening the valve to the drainage connector on the tank 4 Drain out the water in the heat pump system 4 J E 4 3 Trouble shooting i Trouble shooting 1 Power supply cut off 1 Check the power supply 2 Check whether the unit is well grounded 2 Power fuse burnt out If yes check the fuse and change it if Heat pump necessary unit is out 3 1f the protection is caused by the failure of operation 3 U
22. l between two defrosting operations b When one of below condition is met the system quits from defrosting operation 1 Defrosting operation lasts more then 8 minutes 2 Defrosting operation lasts for more than 10 seconds and condensing coil temperature is higher than 17 C E Evaporator overheating protection When evaporator temperature2 52 C system enter into evaporator overheating protection and compressor lowers down its running speed towards F1 until this temperature drops lower than 49 C Then compressor takes the speed 1 level lower than its previous speed before overheating protection as its maximum running speed 1 J E 1 8 Main functions When this Temp drops down to 47 C and lasts for 5 minutes the limit on compressor running speed will be released If evaporator temperature rises above 55 C and lasts for 5 seconds then compressor stops And it will resume its normal operation until this temperature drops down below 47 C E Protection against Compressor s improper operation During compressor s start up orrunning if the controller detects no feedback from compressor or abnormal loads inside compressor or improper start up compressor will stops for 3 minutes and then re start Compressor can re start at most three times when fed with power if this problem still exists the controller will judge it as compressor driving failure and relevant protection will be triggered Then compressor can onl
23. mperature when air temperature works as the set temperature When water outlet temperature WOT 234 C the controller will set a limit on compressor s running speed with its current running speed as maximum When WOT 236 C compressor s running speed will be lowered down towards its lowest speed until water outlet temperature drops below 34 C Then the controller stops lowering compressor s running speed and 16 E 1 8 Main functions begin to raise it back but its maximum speed will be one level lower than its previous speed before this lowering process When WOT lt 32 C and compressor keeps on running 60 minutes without any frequency drop or system shutdown for protection then the limit on compressor s running speed will be released When WOT238 C or compressor s running speed is lowered to its lowest speed but water outlet temperature is still higher than 34 C after 2 minutes then compressor stops After water outlet temperature drops below 32 C compressor restarts E Defrosting function in heating mode Below is the procedure of defrosting operation in heating mode refer to EEPROM table for detailed parameter setting a Defrosting operation starts when below conditions are met when defrosting light flickers 1 Condensing coil temperature below 3 C and lasts for 3 minutes 2 Compressor has been running for not less than 5 minutes 3 Total running time of compressor is longer than interva
24. ng doesn t function Timer OFF settings only functions when the unit is working It will be after the unit starts Itcan be activated when the unit is turned activated when the unit is OFF turned ON When the unit is ON press se1 for 5 seconds to lock all the buttons withf jshows Press set for 5 seconds again to unlock all the buttons A2 E 4 1 Failure codes E Failure codes Error 1 Wire connection between wired controllerand PCB openor short circuited 2 Wired controller failure 2 Change it 1 Wire connection between wired controllerand PCB openor short circuited 2 Wired controller failure 2 Change it 1 temp sensor open or 1 Measure with a multimeter at 20K to check whether short circuited itis shirt circuited or open If yes change it 1 Check whether the wire connection gets loose Fasten it EO 1 Check whether the wire connection gets loose Fasten it 2 Measure with a multimeter at 50K to check the cs sensor resistance Take ambient temp into drifting consideration If it isdrifting change it 3 Temperature sensors not well 3 Check whether the sensor connection connected to the wired controller gets loose Fasten it 1 Check whether the sensor connection gets loose Fasten it 1 water inlet Temp sensor failure 2 Wire connection between wired controller and indoor PCB open or short circuited 3 water inlet Temp sensor resistance drifting 2 temp sensor resistance
25. nit protection please refers to the failure code list and fix the failure before restarting the unit 4 Loose connection of 5 Compressor failure 5 Replace the compressor 1 Fan motor wire loose 1 Check the wire connections of operation Fan motor burnt Change the fan motor 3 Fan motor relay fails 3 Change the fan motor relay 1 Coil fins are dirty 1 Clean the evaporator coil Low heating 2 Air inlet outlet blocked 2 REMOVE any object that blocks the air capacity circulation of the unit 3 Inspect the unit for leakage and fix it if any 3 Lacking of refrigerant Discharge all refrigerant and charge the unit again with right amount Too high noise 1 Check the water filling device Fill the from the water 1 Lacking of enough water system with enough water PUMP OF NO 2 Air inside the water system 2 Purging the air out water flow 3 Check all th t th water pump fully opened isrunning 4 Filter is blocked 4 Clean the filter ET ere 1 Discharge all refrigerant and charge the HOO Muca remgerant unit again with right amount Too high 2 Air inside the refrigerant system eae erage n AD TA EE unit again with right amount compressor discharge 3 Check the water flow of the system Use pressure 3 Too small water flow a bigger pump if necessary 4 Check the value of the water temperature sensor to ensure it works properly 1 Drier filter blocked 1 Change the drier filter Too low 2 Expansion valve failure 2 Check and replace
26. nsor picked up from the indoor unit into the box 4 Connect the room temperature to the extra long signal cable which packed inside the accessories bag And then connect the other side of this extra long signal cable to the connector inside the indoor unit Fixed Now you can put the room temperature sensor kit to wherever you want to read the room temperature there 33 Hi 2 6 Control of external electric heater HM Control of external electric heater Customer can do as followings to connect the a external electric heater to the unit 1 Open the indoor unit 2 Find the relay as marked in red below 3 Connect the power or signal cable from the electric heater to this relay One cable should be connected to position A while the other cable should be connected to any one of the connectors at position B 4 If according to our heat pump logic the external electric heater should be turned ON our unit will send its signal to this relay so to close the relay to start the electric heater The maximum allowable current this relay can bear IS 30A If directly connect the power cable of the electric heater to our unit please refer to the wiring diagram A in the next page lf the maximum current of the electric heater is more than 30A an extra contactor is needed please refer to the wiring diagram B in the next page 34 Hi 2 6 Control of external electric heater WIRING DIAGRAM A R120800
27. o do gt Grounded The power supply to the heat pump unit must be grounded WE 1 1 Safety precautions The water inside the heat exchanger should contains no chloridion inside and PH value among 6 8 Make sure the power supply to the heat pump unit is off before any operations are done on the unit Do not insert any foreign objects into the air outlet grill when the fan motor is running Otherwise injury of person or unit damage might happen Make sure no water or other liquid drips into the electric box of the unit Otherwise the unit might be damaged Do not clog the evaporator by paper or any other foreign objects to keep the unit well ventilated It is mandatory to use a suitable circuit breaker for the heat pump and make Sure the power supply to the heater corresponds to the specifications Otherwise the unit might be damaged Make sure to use a dedicated power line for the heat pump only Do not add other appliances to the line j Hi 1 2 Features and advantages E Advantages M This unit is using the latest DC inverter technology It can adjust its working frequency so to give out its output according to the loading It can work down to 25 C with good COP M The unit is designed with easy installation that no refrigerant charging or copper pipe brazing is required on site It can be widely used in house and villa M This unit is with environment friendly refrigerant R410A which
28. r city water 3 Shut off valve city water E Air purging Indoor unit I _ _ Water outlet F4 A A a Water inlet i F3 amp ag drainage Z connector si F2 lt Filter F1 open open Ball valv a open City water Outdoor unit 36 Hi 2 7 Air purging The whole water system of this unit should be a closed water system Because of this please purge the air inside as following after all the water pipe connection work finished 1 Open the water tap at the lowest level so the air inside the sanitary water system can be purged out by the pressure of water 2 Open the filling valve to fill the whole water tank and the water system with water this process may take around 20 minutes 3 Close all the valves when there is water coming out from the end of the water system 4 Air purging finished Please refers to the following figures If the water supply is cut off the unit will show protection code on its screen The customer should cut the power off till the water coming again It is necessary to purge the air again when restart the unit after the water was cut off 3 J 2 8 Pre Start up WE Pre Start up Before starting up the unit a certain number of verifications must be performed on the installation to ensure that the unit will operate under the best possible conditions The check list below is not exhaustive and should only be used as
29. the coil occasionally A Hi 4 2 Maintenance Maintenance of the electric components gt indoor a 1 Cut off the power supply 2 Open the doorofindoor unit and then take off the screws around the electrical box 3 Do the maintenance of the electrical parts Electrical box 7 outdoor 1 Cut off the power supply 2 Take off the screws on the front panel and take away the front panel 3 Take off the screws on the right side panel and take away the right side panel 4 Do the maintenance of the electric parts 5 After done install the right side panel and front panel back Figure 1 Figure 2 A Opening view of the unit 45 Hi 4 2 Maintenance Condenser Coil The condenser coils donot require any special maintenance except when they are clogged by paper or any other foreign bodies Cleaning is by washing with detergent and water at low pressure and then rinsing with clean water 1 Before cleaning make sure the unit is off 2 Inner of the unit must be cleaned by qualified person 3 Donot use gasoline benzene detergent etc to clean the unit And donot spray with insecticide The unit may be damaged The cleanser special made for air conditioner cleaning is recommened 4 Spray air conditioner cleanser into the coils Let the cleanser sit for 5 8 minutes 5 Then spray th
30. the expansion valve suction 3 Inspect the unit for leakage and fix it if any pressure 3 Lacking of enough refrigerant Discharge all refrigerant and charge the unit again with right amount 4 Too high water temperature 4 E 4 3 Trouble shooting Unit can temperature sensor Replace it if necessary not defrost 7 2 Remove any object that blocks the air properly 2 Air inlet outlet blocked circulation of the unit Clean the evaporator coil occasionally The following phenomenon may not be problems Please contact with a professional maintenance staff Wwe Malfunction Possible Causes 1 May be caused by compressor restart protection The interval time The unit is of compressor restart is 3 minutes not running 2 Please check whether the circuit breaker the power supply is open When the unit is running if sound of the running water can be heard from the system of the unit itis the sound of running of the refrigerant This is nota failure The unitis too noisy Check whether the air inlet outlet is blocked Check whether the temperature setting is too high in cooling mode or too low in heating is too small mode Check whether the room is too big Check whether there are too many people inside the house when unit is in cooling operation 49 E 5 1 Wiring diagram AVH 12V1D outdoor unit Fan Compressor motor Condensor 4 way heater C heater valve TAVAS FM il i i U 0 U U U
31. til gas discharge temperature drops below 90 C and compressor has been off for 3 minutes E Delayed Start up of Compressor After compressor stops it can only restart in 3 minutes this protection is functional in cooling mode or when system changes its operation mode between dehumidification and heating However when the unitis powered the first time compressor starts up in 1 minute instead to ensure proper communication between indoor and outdoor unit E Protection against Low Voltage When voltage supplied is lower than 190V and this condition lasts for 30 seconds limits will be imposed on compressor s running speed When voltage supplied is higher than 195V the limitation is cancelled When voltage drops below 158V the system turns off and relevant error code will be shown in the wired controller When voltage rises back above 162V the system recovers its operation 19 1 9 Water pump Setting the pump speed The pump speed can be selected on the pump The default setting is highest speed Ill If the water flow in the system is too high e g noise of runing water in the installation the speed can be lowered II The available external static 0 oi 02 03 04 OS 06 07 08 09 1i Vs pressure ESP expressed in RS 15 for AVH 12V1D mH 0 in function of the water flow l min is shown in the right picture 0 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 1 l s RS 25 for AVH 24V1D
32. x nom min Indoor coil temp sensor KQ Q Outdoor coil temp sensor KO S5K 25C Outdoor discharge temp sensor KO 50K 25 C Rated condition of test Cooling water inlet 12 C water outlet 7 C outdoor dry bulb 35 C wet bulb 24 C Cooling water inlet 30 C water outlet 35 C outdoor dry bulb 7 C wet bulb 6 C The specifications air subject to change without prior notice For actual specifications of the unit please refer to the specification stickers on the unit 11 Hi 1 7 Exploded view E AVH 12V1D Indoor unit TER gt rays TCE Name no Name 6 Terminalbiok 19 Connector to Flexible Pipe e Bracketfor Electronics 21 Discharge Vave o waterPum 22 FlexiblePipe Cover for Electric Heater Sensor Electric Heater Auto reset pressure switch Cable Fixture E 1 2 Hi 1 7 Exploded view E AVH 24V1D Indoor unit o TTerminalblock 19 Connector to Flexible Pipe _ e Bracketfor Electronics 21 Discharge Valve o WaterPump 22 Flexible Pipe P13 caiete 13 Hi 1 7 Exploded view ml AVH 12V1D Outdoor unit Name NO NAME Bulkhead Sensor Condenser Filter 8 Bottom plate 21 Valve 9 Handie Gas Connector 13 Controtsystem PS 14 NO Hi 1 7 Exploded view ml AVH 24V1D Outdoor unit Name no Name e Bulkhead 19 PC Transducer
33. y be turned on after problem solved and system re fed with power E Protection against Improper Current When system running current is bigger than a certain value controller will impose relevant limits on compressor s running frequency then its running speed will stop rising When this current 0 5A smaller than this certain value system s running speed drops by 1Hz second towards 30Hz until running current is smaller than 16A When this current is 1A bigger than this certain value controller will stop the compressor no matter at what speed it runs E Compressor gas discharge temperature protection When compressor gas discharge temperature exceeds 92 C the controller will keep its running frequency from rising When this temperature exceeds 97 C the controller will record the compressor s running speed and lower it down towards 30Hz If compressor gas discharge temperature drops below 87 C then this process stops and controller adjusts compressor srunning speed according to difference between room temperature and preset temperature However its 18 E 1 8 Main functions maximum running frequency will be 1 level lower than recorded value When compressor gas discharge temp is below 92 C and lasts for 10 minutes its maximum running frequency will increase by 1 level If this discharge temperature exceeds 103 C the compressor stops and outdoor fan motor turns off in 15 seconds And the system turns on un
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