Installation manual
Contents
1. TB 05 port AB to Hydro unit port AB to Hydro unit port A open port B to Room heating port B to Room heating or cooling or cooling W Fig 7 27 Type 3 SPDT port A to Hot water cylinder Hydro Unit I I u port AB to Hydro unit port B to Room heating or cooling 26 Hydro Unit Installation Manual 3 way mixing valve connection Required Actuator Specification Electrical Specification 230 V 50 Hz lt 100 mA The 3 way mixing valve is used to achieve the temperature differential needed in a 2 zone heating system e Connect the 3 way mixing valve to terminals 2 3 and 4 on Terminal Block 04 for Type 1 mixing valve or on terminals 1 2 and 3 on Terminal Block 04 for Type 2 mixing valve e Connect the 3 way mixing valve in accordance with the diagrams below Y Fig 7 28 Y Fig 7 29 Type 1 SPDT Type 2 SPST port A to Zone 2 Heating Hydro UA port A to Zone 2 Heating Hydro Unit TB 04 TBO4 port AB to Hydro unit port AB to Hydro unit port B BLANK OFF port B BLANK OFF Hot water cylinder connection optional e Please refer to Electrical supply cable specifications for fuse cable size and for connection details Electrical Connection Hot Water Cylinder Electric Heater e The electric heater incorporated in the hot water cylinder requires a separate supply to Hydro Un2. 20 E 20 T1 T2 T3 20 10 0 10 Outdoor Temperature The entire curve can be adjusted plus and minus 5 C by function code 27 8 Setting Frost Protection Temperature function code 3A to 3B Set the function when the FROST PROTECTION button on the remote controller is pressed e Set enabling disabling of this function and the target water temperature If disabling is set the frost protection operation is not performed even when the FROST PROTECTION button is pressed 33 32 EN 33 EN Hydro Unit _ Installation Manual 9 Setting Frequency of Output to Internal Heater function code 33 to 34 e The increase decrease time is used to set the response time 10 Setting Night Setback function code 26 remote controller function code OF to 11 Set the function when the NIGHT button on the remote controller is pressed e Set enabling disabling of this function reduction temperature start time and end time If disabling is set the night setback operation is not performed even when the NIGHT button is pressed 11 Setting 2 Way Valve for Cooling Operation function code 3C e When using both cooling and heating operations and there is an indoor unit only for heating such as floor heating install the 2 way valve and set this function code 12 Setting 3 Way Valve Operation function code 54 e This setting is not necessary for normal installation Make this setting to invert the logic circuit in case ports A
3. Fig 7 32 Boiler Control Output L2 Boiler drive permission output e Output enabled when outdoor ambient temperature lt 10 C Volt free contact specification shown below AC230 V 0 5 A maximum DC24 V 1 A maximum e Connection details Terminals 3 and 4 EMG on MCC 1217 TB Refer to Fig 7 32 Y Fig 7 32 TCB PCIN3E Local Supply Pea I booty BOILER SE E 4 io Power Supply gt CONTROL Connection Sere ey gt OUTPUT cN208 Cable PJ20 EMG Lac Se H kA i s u GE d Display 2 gt ALARM Relay a 6 Power Supply OUTPUT ui L1 2 L r 1 i i 28 Hydro Unit _ Installation Manual CAUTION e Be sure to prepare a non voltage contact for each terminal e Display Relay capacity of EMG and OPERATION Below AC230 V 0 5 A COS 100 When connecting loads such as relay coil to L1 L2 load insert noise surge absorber Below DC24 V 1 A Non inductive load When connecting load such as relay coil to L1 L2 load insert the bypass circuit Optional inputs to hydro unit Room Thermostat Input 1 2 Room thermostat input for cooling mode 1 3 Room thermostat input for heating mode e Output enabled when either heating or cooling mode selected on room thermostat locally supplied Volt free contacts e Connection details Cooling Connection
4. ta Regulating Valve i i Mechanical Isolating N Z sai Valves Service Diverting Strainer 40 mesh 0 4 mm a Drain Cock for water Charge and Drain gt lt Zone 1 Fan Coil Unit Heating or Cooling Motorized 2 Way Valve is required if fan coil units are in cooling operation Mixing 3 Way M Valve for Under Floor Heating K External Pump for Under Floor Heating Indirect Sanitary Hot Water Tank Zone 2 Under floor Heating 2 Way Valve Control Hydro Unit Installation Manual 6 MAIN COMPONENTS OF HYDRO UNIT E Exploded view and description for Hydro Unit Y Fig 6 01 O JO Qm E Q N KS N a a dai da da a om eh h LB O OD O J O Qm E Q N O Expansion vessel Hi pressure switch 4 15 MPa Temperature sensor for Heat pump outlet TWO Pressure sensor Heat exchanger Flow switch 13 0 L min 17 5 L min Temperature sensor for refrigerant TC Temperature sensor for water inlet TWI Drain nipple Water inlet connection Refrigerant liquid connection Air relief valve Pressure relief valve 0 3 MPa 3 bar Thermal protector auto Temperature sensor for water outlet THO Thermal protector Single operation Water pump Backup heater 3 kW 3 KW x 2 3 kW x 3 Manometer Water outlet connection Refrigerant gas connection 8 EN 9 EN Hydro Unit WE Box layout Y Fig
5. 6 02 Relay P C board MCC 1217 Option Relay P C board MCC 1217 Option Relay P C board MCC 1431 P C board MCC 1511 Relay RY01 Fuse BRA elle 10 Installation Manual MG SW RY04 MG SW RY02 Relay P C board MCC 1214 Option Hydro Unit Installation Manual 7 HYDRO UNIT INSTALLATION Ab WARNING To protect yourself from injury always use PPE Personal Protective Equipment that is wear gloves Install the Hydro Unit by at least two persons Install the Hydro Unit in a place strong enough to withstand the following weights Hydro Unit weight with no water 60 kg 802 65 kg 1402 Hydro Unit weight with full water 80 kg 802 85 kg 1402 Ab CAUTION e The operating temperature range is 5 to 32 C Heating and 18 to 30 C Cooling Do not install the unit in a place where water freezes Do not install the Hydro Unit in a place where combustible gas may leak Do not install the Hydro Unit in a place exposed to rain or water Do not install the Hydro Unit near equipment which generates heat Do not install the Hydro Unit to a movable object Do not install the Hydro Unit in a place exposed to vibration m Handling Unpacking and Checking the Hydro Unit e The
6. heating Zone 1 1A 55 37 to 55 C 1 02 Lower limit temperature for heating Zone 1 1B 20 20 to 37 C 1 03 Upper limit temperature for heating Zone 2 1C 55 37 to 55 C 1 04 Lower limit temperature for 1 Setting heating Zone 2 1D 20 20 to 37 C 1 temperature range 05 Upper limit temperature for cooling 18 25 18 to 30 C 1 06 Lower limit temperature for cooling 19 10 10 to 18 C 1 07 Upper limit temperature for hotwater 1E 75 60 to 80 C 1 08 Lower limit temperature for Dot water 1F 40 40 to 60 C 1 2 Hot water 01 Heat pump start temperature 20 38 20 to 45 C 1 operation 02 Heat pump stop temperature 21 45 40 to 50 C 1 01 Temperature compensation ee start outside air temperature 0 20 to 10 S 1 compensation 02 Compensation temperature 25 3 0 to 15 Degree 1 01 Operation time x 10 min 08 6 3 to 18 Minute 1 x10 4 Hot Water Boost 02 Setting temperature 09 75 40 to 80 C 1 01 Setting temperature DA 75 70 to 80 C 1 5 Asl chanted 02 Operation cycle 0D 7 1 to 10 Day 1 Anti bacteria 03 Start time UC 22 0 to 23 Hour 1 04 Operation time 0B 30 0to60 Minute 1 01 Hot water and heating H switching temperature 22 0 20 to 20 c 1 6 Priority mode IERI Jai Boiler and heat pump _ _ switching temperature 23 10 20 to 20 c 1 01 Outside temperature T1 29 10 15 to 0 C 1 02 Outside temperature T3 2B 10 0 to 15 C 1 03 Setting temperature A at 2C 40 20 to 55 C 1 20 C 04 Setting temp
7. 2 conductor Terminal L2 Phase 3 Conductor Terminal L3 Neutral conductor Terminal N Earth conductor Earth Terminal Outdoor unit to hydro unit electrical connection Y Fig 7 22 Input power 230 V 50 Hz e Ensure electrical circuits are isolated before commencing work Main circuit Hydro outdoor connecting wires O 0 Ensure the Hydro Unit power cable is secured using the cable clamp fitted in the electrical box Ensure the Hydro Unit power cable connection terminals are tight l Hydro Unit Terminal 01 Gi ci Dt Outdoor unit Earth Leakage breaker Earth Earth _ l Hydro unit Remote controller e The Outdoor Unit to Hydro Unit interconnecting cable must be sized in accordance with refer to Electrical supply cable specifications e Connect the Outdoor Unit to Hydro Unit interconnecting cable as shown in the diagram above 23 EN _ 24 Hydro Unit _ Installation Manual e Ensure the Outdoor Unit to Hydro Unit interconnecting cable is secured using the cable clamp fitted in the electrical box e Ensure the Outdoor Unit to Hydro Unit interconnecting cable connection terminals are tight Electrical connection for external booster heater Ab CAUTION e The maximum current available from the booster heater output is 1 A Do not connect the booster pump directly to Terminal Block 05 on the Hyd
8. H06 Low pressure system defect Ps pressure sensor defect or low pressure protective operation F Other outdoor unit faults 1 Inter MCU communication error between IPDU L29 Other outdoor unit faults and CDB 2 abnormal GBT heatsink temperature When phase sequence of 3 phase power supply is incorrect thermostat L31 Phase sequence error etc OFF operation continued etc P03 Abnormal outdoor unit discharge When abnormal temperature is detected by discharge temperature release temperature control SEP When high pressure switch IOL is activated or when abnormality is P04 High pressure system defect detected by high pressure release control by TE P22 Outdoor unit fan defect When overcurrent or lock in outdoor unit fan drive circuit is detected When short circuit protection is activated for compressor driver devices P26 Inverter Idc operation G Tr IGBT P29 Position detection error When compressor motor position detection error is detected 42 Hydro Unit _ Installation Manual 43 42 EN EF99804301
9. ITA ME TOSHIBA Leading Innovation gt gt gt AIR TO WATER HEAT PUMP Installation manual i D Hydro Unit Model name HWS 802XWHM3 E HWS 802XWHT6 E HWS 1402XWHM3 E HWS 1402XWHT6 E HWS 1402XWHT9 E HFC Installation manual Hydro Unit Air to Water Heat Pump Manuel d installation Unit Pompe chaleur air eau Installations handbuch Hydrogerat Luft Wasser Warmepumpe Installationshandbok Hydroenhet Luft till vatten va rmepump 128 1 EN Hydro Unit Installation Manual Please read this Installation Manual carefully before installing the Air to Water Heat Pump e This Manual describes the installation method of the hydro unit For installation of the outdoor unit follow the Installation Manual attached to the outdoor unit ADOPTION OF NEW REFRIGERANT This Air to Water Heat Pump is a new type which adopts a new refrigerant HFC R410A instead of the conventional refrigerant R22 in order to prevent destruction of the ozone layer Contents 1 GENERAL INFORMATION 3 2 ACCESSORY PARTS 0c ccc cee ee eee ee eee eee eee 4 3 PREPARATIONS FOR INSTALLATION eee 4 4 PRECAUTIONS FOR SAFETY ee eee eee eens 5 5 EXAMPLE OF HYDRO UNIT INSTALLATION 0 00 cee ee eee ee eee 7 6 MAIN COMPONENTS OF HYDRO UNIT 2 000 cee eee eee eee eee 9 7 HYDRO UNIT INSTALLATION LL 11 8 START UP
10. Non voltage 0 54 AC230 V 12m Output as required when outdoor air contacts 1A DC24 V 12m temperature is 10 C or less 0 5 A AC230 V 12m ALARM Output Nol clade L 1A DC24 V 12m 0 5 A AC230 V 12m Operation Output AR a Contacts 1A DC24 V 12m 23 22 EN Hydro Unit Installation Manual ZE Maximum Max Maximum Description Output current voltage length 0 5 A AC230 V 12m Defrost Output AE contacis 1A DC24 V 12m Y Input line specifications Description Input Maximum length Emergency stop control Non voltage 12m Cylinder thermostat input Non voltage 12m Cooling thermostat input Non voltage 12m Heating thermostat input Non voltage 12m Ab CAUTION Earthing arrangements The Hydro Unit and related equipment must be earthed in accordance with your local and national electrical regulations It is essential that the equipment is earthed to prevent the electric shock and damage to the equipment Electrical connection to hydro unit e Remove the front cover and the electrical box cover from the Hydro Unit e The Hydro Unit power cable must be sized in accordance with refer to Electrical supply cable specifications e Connect the Hydro Unit power cable to Terminal 02 as shown below Single Phase Units Live conductor Terminal L1 Neutral conductor Terminal L2 Earth conductor Earth terminal Three Phase Units Phase 1 conductor Terminal L1 Phase
11. Unit so that its tilting angle falls within the range below Fig 7 08 Fig 7 09 13 12 EN 13 EN Hydro Unit Installation Manual E Refrigerant Piping WARNING THIS SYSTEM ADOPTS HFC REFRIGERANT R410A WHICH DOES NOT DESTROY THE OZONE LAYER The characteristics of R410A refrigerant are ease to absorb water oxidizing membrane or oil and its pressure is approximately 1 6 times higher that of R22 Accompanied with the new refrigerant the oil has also been changed Therefore during installation work prevention of the invasion of water dust former refrigerant or oil is of a paramount importance To prevent the charging of incorrect refrigerants into the system the service valve connection ports have also increased in size The use of R410A tools is required for correct installation of the system The use of the correct pipe sizes and wall thicknesses of copper pipe work is required for the correct installation of the system Ab CAUTION Ensure all refrigerant pipes are protected from the invasion of dust and water Ensure all pipe work connections are tightened to the required torque settings detailed in this section Perform an air tight using Oxygen Free Nitrogen OFN only Evacuate the air in the pipe work using a vacuum pump Check for refrigerant gas leaks at all connections throughout the pipe work NOTE The Air to Water Heat Pump system uses R410A refrigerant It is important that copper pipes used
12. and B of the 3 way valve are wrongly attached and it cannot be rectified on site 13 Mixing valve types and setting e Set the time period from full close to full open of the 2 zone control mixing valve Set a value that is 1 10 of the actual time 14 Setting Heating Hot Water Switching when Boiler Is Used function code 3E e When boiler is used make this setting to operate the Hydro Unit by the instruction from the boiler 15 Setting Heat Pump Operating Time for Hot Water Supply Operation e Set the time period from the start of heat pump run to the start of heater energization at the beginning of hot water supply operation If a long period is set it takes long time for heating water 16 Setting Cooling ON OFF e Set this function when performing cooling operation 17 Remote controller time indication 24 hour or 12 hour notation is selected for the timer 18 Setting Nighttime Quiet Operation e Issue an instruction for low noise mode operation to the outdoor unit Enabling disabling of this function start time and end time can be set 19 Setting Alarm Tone e The remote controller alarm tone can be set CT Hydro Unit Installation Manual Function code settings Function code setting address l Function code setting Hva or Default Range Unit Unit Note ydro emote unit controller 01 Upper limit temperature for
13. cable ground wires This unit must be connected to the main power supply using a circuit breaker or switch with a contact separation of at least 3 mm Be sure to turn off all main power supply switches or the circuit breaker before starting any electrical work Ensure all power switches are off failure to do so can cause electric shock Use an exclusive power circuit for the Air to Water Heat Pump system using the rated voltage Ensure correct connection of interconnecting wire between Outdoor Unit and Hydro Unit Incorrect connection of the interconnecting cable may result in the damage of electrical parts Ensure refrigeration system remains sealed to external gases and air Should air or other gases contaminate the refrigeration circuit high system pressures could result in burst pipes and injuries Do not modify or bypass any of safety guards or switches in this system After unpacking the outdoor unit examine the unit carefully for any possible damage Do not install in any place that might increase the vibration of the unit To avoid personal injury with sharp edges be careful when handling parts Perform installation work properly in accordance with the installation manual Inappropriate installation may result in water leaks electric shock or fire Tighten all flare nuts with a torque wrench in the specified manner Excessive tightening of the flare nut may result in cracking of the pipe work or flare nut which may result in a refrigerant le
14. cooling Connect the valve cables to terminals TB05 3 and 4 of the Hydro Unit Press long the TEST SET C SELECT switches on the remote controller to change the Hydro Unit function code and change address 02 to 0 and then press the SET _ button to enable the function Press the TEST amp button to exit the setting mode Stick the optional insulator for cooling to the bottom of the Hydro Unit Settings for hot water supply e Prepare the optional hot water cylinder e Procure a motorized 3 way valve refer to Control parts specifications on page 23 for the details locally and perform piping Connect the valve cables to terminals TB05 7 8 and 9 of the Hydro Unit e Set DIP SW12 1 on the Hydro Unit board to OFF Refer to page 31 Connect the power supply unit for the hot water cylinder heater to terminals TB03 L and N of the Hydro Unit e Connect cables between the Hydro Unit and the hot water cylinder as follows Hydro Unit terminals TB03 1 2 and earth Hot water cylinder 1 2 and earth TB06 A B and earth Hot water cylinder A B and earth Settings for 2 zone temperature control e Procure a motorized mixing valve refer to Control parts specifications on page 23 for the details locally and perform piping Connect the valve cables to terminals TB04 1 2 3 and 4 of the Hydro Unit Procure a buffer tank locally e Procure a water pump locally and connect its cables to termi
15. is insufficient enclose nitrogen or dry air in the tank e Check that the hydraulic pressure is 0 1 MPa 1 bar or more with a water manometer If it is insufficient replenish tap water e Pull the lever of the pressure relief valve and check operation e Clean the strainer e Check the pump for an abnormal sound or other abnormalities 1 7 SENSOR TEMPERATURE MONITORING FUNCTION E Sensor Temperature Monitoring Function The sensor sensing temperature is displayed on the remote controller This function allows you to make sure whether the sensor is installed properly Press the TEST A CL C buttons for four seconds or more Select the function code with the TEMP Ce 7 A buttons Press the TEST amp button to exit the test mode Function code Location Indication 06 Return water temperature C 08 Hot water temperature C 09 Hydro unit 2 zone sensor temperature C DA Hot water cylinder temperature sensor C 0B Motorized mixing valve position 60 Heat exchanger temperature C 61 Outside air temperature C 62 Refrigerant discharge temperature C 63 SAGGI Refrigerant intake temperature C 6A Current value in the inverter A 70 Compressor operating frequency F4 Hydro unit AC pump total operating hours x100 hours F5 Operating hours Hot water cylinder heater total operating hours x100 hours F6 Hydro unit heater total o
16. mm or more O O 9 kW 400 V 3N 50 Hz 23 A 13 Ax3P 25A 2 5 mm or more TB02 Hydro cylinder heater power 230 V 50 Hz 12A 16 A 1 5 mm or more TB03 Hydro cylinder _ 12A _ 1 5 mm or more Q TB03 Y Wiring specifications control line er e Maximum Connection Description Line spec Current Maximum length destination 3 way valve control 2 line or 3 line 100 mA 12m 0 75 mm or more Li CO CG DE s or Mixing valve control 3 line 100 mA 12m 0 75 mm or more TB04 2 zone thermo sensor 2 line 100 MA 5m 0 75 mm or more TB06 Cylinder thermo sensor oo 100 mA 5m 0 75 mm or more TBO6 Second remote controller 2 line 50 mA 50 m 0 75 mm or more Q TB07 Y Control parts specifications Power Maximum current Type i Spring return type I alae valve AC 230 V 100 mA Note 3 wire SPST and SPDT type can be used by changing the function code Motorized 2 way valve for cooling AC 230 V 100 mA spring return type normally open ivi 60 sec 90 SPDT type Motorized mixing valve AC 230 V 100 mA Note SPST and 20 to 240 sec type can be used by changing type 1 for 2 zone the function code Y Output line specifications inti Maximum Max Maximum Description Output current voltage length External pump No 1 AC230V 1A _ 12m Interlocked with the Hydro Unit pump Output as required when outdoor air External boost heater AC230V 1A _ 12m temperature is 10 C or less Boiler control
17. remote controller Press the ZONE1 2 button and select heating with the OPERATE MODE button The pump is activated in 30 seconds If air is not released completely the flow rate switch is activated to stop operation Release air again according to the piping procedure Little air bite is discharged from the purge valve Check that the air bite sound disappears Check that the hydraulic pressure has become the predetermined pressure 0 1 to 0 2 MPa 1 to 2 bar If the hydraulic pressure is insufficient replenish water Heating operation starts Check that the hydro unit starts heating Press the OPERATE MODE button and select cooling Cooling operation starts Check that the hydro unit starts cooling and that the floor heating system is not cooled Press the ZONE1 2 button to stop operation Press the HOT WATER button to start hot water supply operation Check that there is no air bite Check that hot water is present at the connection port of the hot water cylinder Press the HOT WATER button to stop the hot water supply operation Press the TEST A button to exit the test mode 38 Hydro Unit Installation Manual 7 OMAINTENANCE Execute periodic maintenance at least once a year Check points e Check all electrical connections and make adjustments if they are necessary e Check the water pipes of the heating systems in particular any evidence of leakage e Check the expansion tank inner pressure If it
18. safety valve setting pressure The absolute pressure value abs is obtained by adding the atmospheric pressure 0 1 MPa 1 bar to the gauge pressure V Y Tank selection method Water temperature and expansion coefficient Hot water temperature C Expansion rate Hot water temperature C Expansion rate 0 0 0002 50 0 0121 4 0 0000 55 0 0145 5 0 0000 60 0 0171 10 0 0003 65 0 0198 15 0 0008 70 0 0229 20 0 0017 75 0 0258 25 0 0029 80 0 0292 30 0 0043 85 0 0324 35 0 0050 90 0 0961 40 0 0078 95 0 0967 45 0 0100 Y Fig 7 15 18 p Expansion vessel volume a 0 50 100 150 200 250 300 Water volume g Hot water temperature 55 C Install an external expansion vessel when the capacity of the expansion vessel is insufficient 18 Hydro Unit Installation Manual zs Pump operation configuration Y Fig 7 16 Pump head m Hydraulic heat exchanger 14 kW QH characteristics Minimum flow rate Vv Out of Operation Range O gt N O Q O DO O 10 15 20 25 3 3 40 4 50 55 60 65 Flow rate g min Y Fig 7 17 Pump head m Minimum flow rate Vv Hydraulic heat exchanger 8 kW QH characteristics 10 15 20 25 30 Flow rate g min 19 18 E
19. 24 and 25 e Compensate the target temperature from the remote controller set temperature when the hot water temperature lowers below the set outside air temperature 4 Setting Hot Water Boost function code 08 and 09 Set the control time and target temperature when the HOT WATER BOOST button on the remote controller is pressed 5 Setting Anti Bacteria e Set the control for the hot water cylinder when ANTI BACTERIA is set with the remote controller e Set the target temperature control period start time 24 hour notation and target temperature retention period e Make this control setting according to regulations and rules of respective countries 6 Setting Priority Mode Temperature e Set the outside air temperature that changes the preferred operation mode e Hot Water Heating Switching Temperature Heating operation takes precedence when the temperature lowers the set temperature Boiler HP Switching Temperature When the temperature lowers the set temperature the HP operation stops and the external boiler output is made 7 Setting Heating Auto Mode Temperature function code 27 to 31 e Compensate the target temperature when Auto is set for temperature setting on the remote controller The outside air temperature can be set to one of three points T1 and T3 within a range of 15 to 15 C e The target temperature can be set to a value from 20 to 55 C e However A gt B gt C gt D gt E Y Fig 8 02 ua 35 B 30 C 25 D
20. AND CONFIGURATION 0 00 c eee eee ee eee eee 31 9 TEST RUIN x ace ere tees ae ce ee eee ee eee aaa 38 10 MAINTENANCE 0 00 ee eee ee eee 39 11 SENSOR TEMPERATURE MONITORING FUNCTION 39 12 TROUBLESHOOTING eee eee ee eee 40 Hydro Unit GENERAL INFORMATION m Hydro Unit Description Installation Manual Hydro Unit Model Description HWS 802XWHM3 E 8 kW Hydro Unit 3 kW 230 V back up heater HWS 802XWHT6 E 8 kW Hydro Unit 6 kW 400 V 3N back up heater HWS 1402XWHM3 E 11 amp 14 KW Hydro Unit 3 kW 230 V back up heater HWS 1402XWHT6 E 11 amp 14 KW Hydro Unit 6 kW 400 V 3N back up heater HWS 1402XWHT9 E 11 amp 14 kW Hydro Unit 9 kW 400 V 3N back up heater E General Specifications Outdoor unit HWS 802H E HWS 1102H E HWS 1402H E Type Inverter Function Heating amp Cooling Capacity kW 8 0 11 2 14 0 Heating Input kW 1 96 2 40 3 15 COP 4 08 4 66 4 45 Capacity kW 6 0 10 0 11 0 Cooling Input kW 2 13 3 52 4 08 EER 2 82 2 84 2 69 Power supply 230 V Refrigerant R410A Dimension HxWxD mm 890 x 900 x 320 1 340 x 900 x 320 Hydro Unit 802XWHM3 E 802XWHT6 E 1402XWHM3 E 1402XWHT6 E 1402XWHT9 E Back up heater capacity 3 kW 6 kw 3 kW 6 kW 9 k
21. N Hydro Unit Installation Manual Water charging Charge water until the pressure gauge shows 0 2 MPa 2 bar Hydraulic pressure may drop when the trial run begins In that case add water Air may enter if the charged hydraulic pressure is low Loosen the purge valve cap by two turns to release air Y Fig 7 18 Loosen 2 turns for proper venting Loosen the cap of the pressure relief valve to release air Water may come out of the pressure relief valve Release the air completely from the water circuit Failure to do so may disable correct operation Water quality The water used must satisfy EN directive 98 83 EC Piping insulation It is recommended that insulation treatment be applied to all pipes To perform optional cooling operation apply insulation treatment of 20 t or more to all pipes 19 EN Z Hydro Unit Installation Manual m Electrical Installation Ab WARNING e Ensure electrical circuits are isolated before commencing the electrical installation e The electrical installation must be completed by a qualified electrician The electrical installation must comply to all Local National and International electrical installation regulations This product must be earthed in accordance with Local National and International electrical installation regulations CAUTION The Hydro Unit must be connected to a dedicated power supply for the back up heate
22. Terminals 3 COM and 2 COOL on TCB PCMO8E Refer to Fig 7 33 Heating Connection Terminals 3 COM and 1 HEAT on TCB PCMOS3E Refer to Fig 7 33 W Fig 7 33 TCB PCMO3E Local supply thermostat Connection Cable CN210 Cool T I I I I I lo Hot I I I I l l CAUTION e Be sure to prepare a non voltage continuous contact for each terminal e Supplementary Insulation must be added to user touchable part of switches Cylinder Thermostat Input S1 Cylinder thermostat input e Non voltage contacts e Connection details Cylinder Thermostat Terminals 3 COM and 2 COOL on TCB PCMO3E Refer to Fig 7 34 Emergency Shutdown input S2 Emergency stop input e Non voltage contacts e Connection details Emergency stop Terminals 3 COM and 1 HEAT on TCB PCMO8E Refer to Fig 7 34 Y Fig 7 34 TCB PCMO3E Local Supply Connection COMc_ 3 F el cn211 Cable PJ17 Bs EF e coore2 T d E Co K Je HEAT O 1 29 28 EN 29 EN Hydro Unit Installation Manual CAUTION e Be sure to prepare a non voltage continuous contact for each terminal e Supplementary Insulation must be added to user touchable part of switches Electrical safety checks The electrical safety checks must be completed before turning on the electrical supplies t
23. W for backup heater 230 V 400 V 3N 230 V 400 V 3N 400 V 3N Power suppl N i ee 230 V Leaving water Heating C 20 to 55 temperature Cooling C 10 to 30 For use with HWS 802H E HWS 1102H E HWS 1402H E Dimension HxWxD mm 925 x 525 x 355 Hot water cylinder option HWS 1501CSHM3 UK HWS 2101CSHM3 UK HWS 3001CSHM3 UK Water volume litres 150 210 300 Max water temperature C 75 Electric heater KW 2 75 230 V Height mm 1 090 1 474 2 040 Diameter mm 550 Material Stainless steel 2 EN 3 EN Hydro Unit 2 ACCESSORY PARTS Installation Manual No Parts name Quantity No Parts name Quantity Installation manual this document 1 Insulator for cooling 1 2 Owner s manual 1 m Parts required to connect this product Common items Category Part Specification Quantity Strainer water filter 1 1 4 30 to 40 meshes 1 Water piping Drain cock for water charge 1 11 4 Isolating ball valves for service 1 1 4 2 Earth leakage breaker for main power supply 30 mA 1 Electrical system Earth leakage breaker for backup heater 30 mA 1 Option Earth leakage breaker for hot water cylinder 30 mA 1 heater E Options required for each function Purpose In the Hydro Unit Purchased part Part name Model name Part name Prescribed specification Heating Radiator s Fan coil s Under floor heating Heating
24. akage Wear heavy duty gloves during installation work to avoid injury Install the outdoor unit securely in a location where the base can sustain the weight adequately In enclosed areas if the refrigerant leaks during installation vacate and ventilate immediately After installation is complete ensure and confirm that refrigerant does not leak If refrigerant leaks into a room and flows near a fire source noxious gas may be generated Do not block any drain hoses Hoses may come off and electric shocks may occur Do not hit the manometer because it is made of glass It is breakable m Notes on System Design The input water temperature to the Hydro Unit must be 55 C or less Especially be careful when there is an external heating source such as a boiler When hot water over 55 C returns it may result in a failure of the unit or water leakage The flow rate of the circulating water must meet the following range 11 and 14 kW 18 L minute or more 8 kW 13 L minute or more If the flow rate becomes less than the minimum the protective device is activated to stop operation Ensure the flow rate with a bypass valve etc when you use a flow rate valve for the Hydro Unit Do not drive water by power other than the pump built in the Hydro Unit The backup heater operates supplementarily to exert a prescribed capacity when the heat pump cannot exert its capacity at a low outside temperature Install the Hydro Unit and water pipes in a place in w
25. amp Cooling all rooms Fan coil s Heating amp Cooling partly heating only Motorized 2 way valve for cooling Refer to Control parts specifications on page 23 Hot water supply Hot water cylinder Motorized 3 way valve Earth leakage breaker 1501 HWS 1501CSHM3 E HWS 1501CSHM3 UK HWS 2101CSHM3 E 210 L HWS 2101CSHM3 UK HWS 3001CSHM3 E 300 L HWS 3001CSHM3 UK Refer to Control parts specifications on page 23 2 zone control Motorized mixing valve Refer to Control parts specifications on page 23 Circulator pump Other power supply Buffer tank Other power supply Interlocking with Output control TBC PCIN3E Boiler Signal 12 V input function is boiler board kit 1 required for boiler Other power supply Interlocking with Output control TBC PCIN3E Electric heater Signal 230 V input function booster heater board kit 1 is required for booster heater Hydro Unit Installation Manual E Optional Parts No Part name Model name Application Remarks Boiler linked output Alarm output 1 DA output TCB PCIN3E p p Up to RS cae n Defrost signal output operation signal output according to applications External input _ Cooling heating thermostat input Up to two boards 2 board TCB PCMO3E Forced stop signal input according to applications Use specified products for the outdoor un
26. anged A11 Release preventive operation malfunction This alarm occurs when the Hydro Unit enters the forced stop zone 10 times Self hydro unit is stopped due to alarm of other hydro unit When alarm occurs in an hydro unit in the group other hydro units must also be stopped with refrigerant control P31 When alarm E03 L03 or L07 occurs in the header unit in the group other hydro units must also be stopped because they do not know which header unit remote controller to follow Auto reset When the first alarm is reset Alarm Main failure part Description indication p p F04 Outdoor unit discharge When open or short circuit of discharge temperature sensor TD is temperature sensor TD defect detected F06 Outdoor unit temperature sensor When open or short circuit of heat exchanger temperature sensor TE or TE or TS defect TS is detected _ 41 40 EN 41 EN Hydro Unit Installation Manual Alarm Main failure part Description indication p p F08 Outdoor unit outside air When open or short circuit of outside air temperature sensor TO is temperature sensor TO defect detected When min Hz is reached by current release control or when short circuit H01 Compressor breakdown current Idc is detected after direct current excitation H02 Compressor locked When compressor lock is detected H03 Current detector defect When abnormal current is detected in AC CT or phase loss is detected
27. e regulations of respective countries e Install water pipes in a freeze free place e Make sure that water pipes have sufficient pressure resistance The setting value of the pressure relief valve is 0 3 MPa CAUTION Do not use zinc plated water pipes When steel pipes are used insulate both ends of the pipes e The water to be used must meet the water quality standard specified in EN directive 98 83 EC Water circuit Install a strainer with 30 to 40 meshes procured locally at the water inlet of the Hydro Unit Install drain cocks procured locally for water charge and discharge at the lower part of the Hydro Unit e Make the piping route a closed circuit An open water circuit may cause a failure V Fig 7 11 Hot water outlet connection 1 1 4 Water inlet connection 11 4 V Fig 7 12 Strainer 30 to 40 meshes Drain cock for water charge and discharge Local arrangement 15 EN 16 Hydro Unit Installation Manual Piping to hot water tank option Water supplied to the hot water cylinder is branched by a motorized 3 way valve procured locally For the specifications of the motorized 3 way valve refer to Control parts specifications on page 23 Connect the hot water cylinder to port A open when energized of the valve Y Fig 7 13 to hydro unit AB room heating or cooling to hot water cylinder A B Open when de energized Open when energiz
28. ed Piping to 2 zone operation To perform 2 zone temperature control circulate water by another pump procured locally through a motorized mixing valve procured locally and a buffer tank procured locally For the specifications of the motorized mixing valve Refer to Control parts specifications on page 23 Y Fig 7 14 Motorized mixing valve Procured locally gt Open when energized Water pump lt to hydro unit Procured locally B Open when de energized Buffer tank Procured locally Checking water volume and initial pressure of expansion vessel The expansion vessel of the Hydro Unit has a capacity of 12 liters The initial pressure of the expansion vessel is 0 1 MPa 1 bar The pressure of the safety valve is 0 3 MPa 3 bar Verify whether the capacity of the expansion vessel is sufficient using the following expression If the volume is insufficient add the capacity locally 17 16 EN 17 EN Hydro Unit Installation Manual Expression for expansion vessel selection E x Vs P 1 1 ES P 2 V Necessary total tank capacity el Water expansion coefficient at average hot water temperature Vs Total water amount in the system P1 System pressure at tank setting position MPaabs Pipe inner pressure during pump operation before heating device operates water supply pressure P2 Maximum pressure used during operation at tank setting position MPaabs
29. erature B at T1 C 2D 35 20 to 55 c 1 When A 05 Setting 7 Heating Auto temperature C at T2 C z 2 F 2E 30 20 to 55 c 1 setting 06 Setting temperature Dat T3 C 2F 25 20 to 55 c 1 07 Setting temperature E at 30 20 20 to 55 C 1 20 C 08 Ratio of Zone 2 in Zone 1 Auto mode 31 80 0 to 100 10 09 Temperature shift of entire AUTO curve 27 0 5 to 5 Degree 1 35 34 EN Hydro Unit Installation Manual Function code setting address Function code setting Default Range Unit Unit Note Hydro Remote unit controller 01 Function 0 Invalid 1 Valid 3A 1 0 1 Select 8 Frost Protection 02 Setting temperature 3B 15 8 to 20 C 1 01 Down time Example Heater 1 0 5 min 1 10 min 2 15 min 33 10 mi 0to3 Select 3 20 min 10 min 9 Heater control 02 Up time Example Heater 0 0 10 min 1 20 min 3 30 min 34 10 mi 0 to 3 Select 4 40 min 10 min 01 Change temperature range 26 5 3to20 Degree 1 10 Night setback 02 Start time OE 22 0 to 23 Hour 1 03 End time OF 06 0 to 23 Hour 1 01 Room temperature control adjustment 0 Valid 1 Invalid 02 0 0 1 Select 02 Compensation for temperature 35 1 1to5 Degree 1 11 Room l 6 1 to 24 temperature setting 03 Down time zone B x 5 min 36 30 min to 120 Minute 1 x5 min 6 1 to 24 04 Up time zone C x 5 min 37 30 m
30. for refrigerant piping have the following wall thickness 0 8 mm for 26 4 mm 9 5 mm and 12 7 mm 1 0 mm for 015 9 mm Refrigerant pipe sizes Hydro Unit Model Gas Side mm Liquid Side mm 8 kW Hydro Unit 15 88 9 52 11 amp 14 kW Hydro Unit 15 88 9 52 Flaring Cut the refrigerant pipes to the correct length using a pipe cutter Remove any burrs that may be on the pipes as these may cause refrigerant leaks or component failure in the refrigeration cycle Place the correct size flare nuts onto the pipes use the flare nuts supplied with the Hydro Unit or use flare nuts designed specifically for R410A refrigerant and then flare the pipes using the correct flaring tool 14 Installation Manual LE Hydro Unit Tightening e Connect the refrigerant pipes from the outdoor unit to the Hydro Unit as shown below Y Fig 7 10 Gas line 15 88 Liquid line 9 52 Tighten the flare nuts using fingers to secure the pipes in place Tighten the flare nuts using a torque wrench to the tightening torques shown below Outer of Copper Pipe mm Tightening Torque N m 9 5 33 to 42 15 9 63 to 77 e To prevent damage to the refrigerant pipes use two spanners to tighten the flare nut connections to the required torque D CR 14 EN Hydro Unit _ Installation Manual m Water Pipe Ab WARNING Install water pipes according to th
31. hich they do not freeze Make the water circuit closed Never use it as an open circuit Circulating water must be 20 liters or more If total water amount is not enough the unit may not function fully due to protective operation Hydro Unit Installation Manual p EXAMPLE OF HYDRO UNIT INSTALLATION E Example of Installation for Cooling and Heating When both cooling and heating are used install a 2 way valve for cooling to the pipe to the room for heating only Y Fig 5 01 Isolating VY Valves AAT AN Strainer 40 mesh 0 4 mm Drain Cock for water Charge and Drain pad lt LN Indirect Sanitary Hot Water Tank Alternative to Radiators Under floor Heating Heating Only 2 Way Valve Control XK OE Fan Coil Units Cooling or Heating Radiators Way Valve Control Only Way Valve Control Way Valve Control ST RW Eege it when do not operate Eege Diverting 3 Way Valve for Sanitary Hot Water Tank 2 Way AG Valve Use it when do not operate cooling 2 Way Valve 6 EN 7 EN Hydro Unit Installation Manual E Example of 2 Zone Temperature Control and Hot Water Supply System The following shows an example of the 2 zone temperature control A buffer tank and a water pump are required for the 2 zone temperature control Y Fig 5 02 Hi Pressure Temperature By Pass Regulating Valve Valve Mechanical
32. ield 10 75 mm or more cl wire 0 75 mms or s 2 i more Booster heater Temp sensor local Max 12m for G SE a 230 VT A l Cono 0 75 mm or more L Il 3Way Valve for hot eran water cylinder i Max 12 m I I non voltage i 10 75 mm or more Alertoutput Boiler operation Defrost output Operation output local local local local rg kd bd kg bd kd kd kd kd CD a A dd a dd a b 00 HH HH HB HB Gb Hb HH Y Fig 7 21 SES C C ali x TH IFE e LIT pa SC e omo Sensor Outdoor unit Hot water Backup heater connection connection cylinder power power supply supply 21 EN 42 Hydro Unit Electrical supply cable specifications Y Wiring specifications Installation Manual TE Maximum Installation fuse Connection Description POWER SUPPLY Current rating Power wire destination 14kW 230 V 50 Hz 22 8 A 25A 2 5 mm or more Outdoor unit power 11kW 230 V 50 Hz 22 8 A 25A 2 5 mm or more O 8 kW 230 V 50 Hz 20 8 A 25A 2 5 mm or more Outdoor Hydro _ _ 15mm or more 3 KW 230 V 50 Hz 13 A 16 A 1 5mm or more TB02 Hydro inletheat power lekw 400 V 3N 50 Hz 15 A 13 Ax 2P 25A 2 5
33. in 5to 120 Minute 1 x5 min 12 Hydro 2 way Activating 2 way valve for cooling valve operation 01 0 Activated during cooling 3C 0 0 1 Select control 1 Not activated during cooling a 3 to 24 13 2 zone mixing i MARICA 6 valve drive time Previous drive time x 10 seconds UC 60 sec 1 x10 14 Boiler operates x synchronized with 91 oe 1 Not 3E 0 0 1 Select heat pump y 15 Maximum er 01 Maximum heat pump di of operation time in hot water 07 30 1to 120 Minute 1 pump operation priority mode 16 Cooling 01 0 Cooling and heating 1 operation Heating only 02 1 0 1 Select 17 Remote 01 24 hour or 12 hour notation of controller indication timer 0 24 hour 1 12 hour 05 0 0 1 Select 01 1 Valid 0 Invalid 09 0 0 1 18 Nighttime low I noise operation 02 Start time 0A 22 0 to 23 Hour 1 03 End time 0B 06 0 to 23 Hour 1 19 Alarm tone 01 Tone switching 0 OFF 1 ON 11 1 0 1 Select 36 Hydro Unit _ Installation Manual m Settings by Purpose Settings when hot water supply function is not used e When the hot water supply function is not used set DIP SW12 1 on the Hydro Unit board to ON Refer to page 31 Setting for cooling e For Hydro Units that do not perform cooling those for floor heating etc procure a motorized 2 way valve for cooling refer to Control parts specifications on page 23 for the details locally and attach it to the water pipe that is not used for
34. it e Connect the hot water cylinder heater electrical supply in accordance with shown below Live conductor Terminal L on Terminal Block 03 Neutral conductor Terminal N on Terminal Block 03 Earth Conductor Earth terminal on Terminal Block 03 e Connect the hot water cylinder heater to the Hydro Unit as shown below Live conductor to hot water cylinder Terminal 1 on Terminal Block 03 Neutral conductor to hot water cylinder Terminal 2 on Terminal Block 03 Earth conductor to hot water cylinder Earth terminal on Terminal Block 03 Electrical Connection Hot Water Cylinder temperature Sensor e Connect the hot water cylinder temperature sensor as shown below to terminals A amp B on Terminal Block 06 in the Hydro Unit e Please ensure that the interconnecting cable between the Hydro Unit and the hot water cylinder is connected to earth at both ends of the cable using the shield wire Y Fig 7 30 Earth leakage breaker INPUT Power 230 V 50 Hz Hot water cylinder L 26 EN 27 EN Hydro Unit __ Installation Manual Hot water cylinder electrical box connections Y Fig 7 31 Additional hydro unit outputs Alarm and Boiler Outputs Alarm Output L1 Alarm output e Output enabled when the system is in alarm fault condition Volt free contact specification shown below AC230 V 0 5 A maximum DC24 V 1 A maximum e Connection details Terminals 1 and 2 OPERATION on MCC 1217 Refer to
35. it Hydro Unit and hot water cylinder Do not use commercially available products Use parts that conform to prescribed specifications for parts to be connected to the Hydro Unit If unspecified products or parts are used a malfunction failure or fire may be caused 4 PRECAUTIONS FOR SAFETY E General Safety Precautions Ensure that all Local National and International regulations are satisfied e Read the PRECAUTIONS FOR SAFETY carefully before installation e The precautions described below include the important items regarding safety Observe them without fail e After the installation work has been completed perform a trial operation to check for any problems Follow the Owner s Manual to explain how to use and maintain the unit to the customer e Turn off the main power supply switch or breaker before unit maintenance e Ask the customer to keep the Installation Manual along with the Owners Manual E Refrigerant Precautions e If a refrigerant leak is suspected contact the dealer who supplied the system in the case of a recharge of refrigerant ask service personnel for details of the leak and confirmation of the repairs completed The refrigerant used in the system is harmless Generally the refrigerant does not leak however if the refrigerant should leak into a room and a heater or stove burner in the room is lit toxic gas may be generated e Do not install the system in a location subject to a risk of exposure
36. nals TB05 1 and 2 of the Hydro Unit To inhibit interlocking the water pump with the internal pump of the Hydro Unit set DIP SW10 3 on the Hydro Unit board to OFF e Set DIP SW12 3 on the Hydro Unit board to ON Refer to page 31 Attach the temperature sensor TFI connected to terminals TB06 C and D of the Hydro Unit near the hot water inlet of the Hydro Unit e Fix TFI sensor on the room heating supply pipe by using the connector procured in locally e Cover the cables with insulation tube minimum 1 mm or conduit so that the user cannot touch them directly Cover the TFI sensor s cables and sensor with insulation tube minimum 1 mm shown in the diagram on the right 37 36 EN 37 EN Hydro Unit __ Installation Manual Y Fig 8 03 Y Fig 8 04 Insulation tube minimum 1 mm TFI Sensor Tying up 7h TF oe 2 Zone hot water supply pipe More than 4mm Direct Buffer tank for Zone 2 Under Floor Heating Under floor Heating 2 Way Valve Control 9 TEST RUN Use operation buttons usually to conduct a test run If the outside air temperature or water temperature is outside the setting value range press the TEST O button on the remote controller and then start a test run Since the protection setting is disabled in the TEST mode do not continue a test run longer than 10 minutes Press the TEST button on the remote controller An indication TEST appears on the
37. ntinues for two seconds an alarm occurs Auto reset When normal value is confirmed Hydraulic heat exchanger EEPROM defect F29 One mismatch is detected if there is no verification ACK after data write to the EEPROM Reset condition This alarm is inhibited while the unit is not working When EEPROM1K is mounted this alarm cannot be reset Onboard expansion IC defect F30 b This alarm is not reset automatically Group line in an hydro unit This alarm is checked during initial communication immediately after power on LO7 This alarm occurs immediately after operation start This alarm is not reset automatically This alarm is inhibited while the unit is not working but occurs again after the unit operates Hydro unit capacity has not been set Log This alarm is checked immediately after power on This alarm is not reset automatically This alarm is inhibited while the unit is not working but occurs again after the unit operates Pump defect or abnormal flow rate A01 I This alarm is not reset automatically Excessive water temperature increase by the heating heater A02 Auto reset A03 Excessive water temperature increase in the hot water cylinder A04 Freezing G detected Auto reset High pressure switch malfunction A07 This alarm is not reset automatically Low pressure sensor malfunction A08 i i a This alarm is not reset automatically A09 Overheat preventive operation malfunction Auto reset When operation mode is ch
38. o the Air to Water heat pump system The electrical safety checks should be completed by a qualified electrician All results measured should comply with your local national electrical installation regulations Earth continuity test On completion of the electrical installation a resistance test should be completed on the earth conductor to ensure continuity between all pieces of equipment on the earth conductor Insulation resistance test This test must be completed using a 500 V D C insulation resistance tester Insulation resistance tests should be completed between each live terminal and earth 30 Hydro Unit _ Installation Manual 8 STARTUP AND CONFIGURATION Set the DIP switches and function codes m Setting DIP Switches on the Board in the Hydro Unit Detach the front cover and the electric parts box cover of the Hydro Unit Set the DIP switches on the main board Y Fig 8 01 SW10 SW11 SW12 SW13 ON ON ON ON ON OFF 1 2 3 4 123 4 1 2 3 4 1 2 3 4 Switch mode SW10 Description Default setting 1 Internal pump P1 operating mode Continuous operation OFF ON HP synchronized Interlocked with the 3 External P2 pump operation Continuous operation OFF ON internal pump synchronized with P1 Switch mode SW11 Description Default setting Internal backup heater operation Operate OFF ON Noto
39. ondensing temperature TC sensor defect F03 If short circuit or open circuit state continues for two seconds an alarm occurs Auto reset When normal value is confirmed Hydraulic heat exchanger inlet temperature TWI sensor defect F10 If short circuit or open circuit state continues for two seconds an alarm occurs Auto reset When normal value is confirmed Hydraulic heat exchanger outlet temperature TWO sensor defect F11 If short circuit or open circuit state continues for two seconds an alarm occurs Auto reset When normal value is confirmed 40 Hydro Unit _ Installation Manual ae Alarm description and generation reset conditions Hot water cylinder temperature TTW sensor defect F14 If short circuit or open circuit state continues for two seconds an alarm occurs Auto reset When normal value is confirmed Floor inlet temperature TFI sensor defect F17 If short circuit or open circuit state continues for two seconds an alarm occurs Auto reset When normal value is confirmed Internal heater outlet temperature TWO sensor defect F18 If short circuit or open circuit state continues for two seconds an alarm occurs Auto reset When normal value is confirmed Floor inlet temperature TFI sensor disconnection or wrong installation F20 R e This alarm is reset by stopping operation and is checked again Low pressure sensor defect F23 If open circuit state co
40. perate Hot water cylinder heater operation Operate OFF ON Not operate Booster heater operation Operate OFF ON Not operate Switch mode SW12 Description Default setting Hot water supply operation Valid OFF ON Invalid Zone 1 operation Valid OFF ON Invalid Zone 2 operation Invalid OFF ON Valid Switch mode SW13 Description Default setting e 2 wire spring return type 1 Type of motorized 3 way valve 3 wire SPST type OFF ON 3 wire SPDT type Interlocking with boiler Invalid OFF ON Valid Auto restart for power failure Auto restart OFF ON Manual restart SW02 Description Default setting 4 Room thermostat Invalid OFF ON Valid 31 30 EN Hydro Unit _ Installation Manual m Setting Function Codes for Hydro Unit and Remote Controller Set function codes for various operation modes with the remote controller There are two types of setting 1 Hydro Unit function code setting 2 Remote controller function code setting Setting remote controller mode lt Setting Hydro Unit Function Code gt x Press the TEST SET SELECT Su buttons for four seconds or more Pern UU to enter the remote controller function code DD setting mode gt Sue aa N l Z N a GE lt CP Set the function code CODE No with the mew HH HH TEMP Ce 4 buttons CODE No 01 to 91 L An ni Set data DATA with the TIME Y 4 buttons Press the SET _ button to determine the se
41. perating hours x100 hours 39 38 EN Hydro Unit 12TROUBLESHOOTING m Fault Symptoms Installation Manual Symptom Possible cause Corrective action Room is not heated or cooled Water is not hot enough Incorrect remote controller setting Check remote controller operation and temperature setting Incorrect function code setting Check function code setting with the function code table Backup heater disconnected Check backup heater and bimetal thermostat Insufficient capacity Check selection of equipment Sensor defect Check whether temperature sensor is installed at the normal position Nothing is displayed on the remote controller Power is not supplied Check power supply wiring Incorrect setting Check DIP switch setting on the Hydro Unit board Check the setting with the function code table Flow rate switch is activated Error code P01 Air bite in the pump Release air completely according to the procedure Low hydraulic pressure Set hydraulic pressure considering pipe height and replenish water until manometer shows a value of set hydraulic pressure or more Strainer is clogged Clean the strainer Large resistance on the hydro side Widen water path to the hydro unit or adopt a bypass valve Malfunction of motorized 3 way valve for hot water supply Check wiring and parts Hot water leaks from pressu
42. r circuit The electrical supply must be protected by a suitably sized over current protection device fuse MCB etc and an earth leakage protection device The Hydro Unit must be connected to the mains power supply using a isolating switch which disconnects all poles and has a contact separation of at least 3 mm The cord clamps attached to the Hydro Unit must be used to secure the electrical cables Wrong connection of electrical cables may result in electrical component failure or fire Ensure the electrical cables are sized in accordance with the installation instructions Power line Y Fig 7 19 Backup heater 230 V 3 kW type Backup heater 400 V 3N 6 9 kW type Input power 230 V 50 Hz l Leakage breaker 30 mA Input power 400 V 3N Leakage breaker 30mA Hot water cylinder Input power for cylinder heater 230 V 50 Hz Outdoor unit Hydro unit 21 20 EN Hydro Unit Installation Manual Control line Y Fig 7 20 Mixing Valve Mixing Valve type type 2 for 2 1 for 2 zone control zone control Max 12m Temp sensor in hot 1 230 V 100 mA water cylinder 0 75 mm or more Pump local ENEE w Max 5 m shield wire z i Max 12m 0 75mm or more i 230 V 1A liceali I 0 75 mm or more saio aes sal ra 2Way Valve for I Max 12 m cooling stop C Kia rai 1290 N 100 mA Cem Max 5 m sh
43. re relief valve Excessive hydraulic pressure Set hydraulic pressure considering pipe height and replenish water until manometer shows a value of set hydraulic pressure or more Insufficient capacity of expansion tank Check expansion tank capacity compared to total water amount If it is insufficient install another expansion tank Expansion tank failure Check the air pressure Alarm are e d s indication Alarm description and generation reset conditions Regular communication error between hydro unit and remote controller system controller E03 Ifthere is no regular communication from the remote controller for three minutes the hydro unit regards it as no remote controller If there is no communication from both sides alarm E03 occurs Auto reset When successful regular communication is made Regular communication error between hydro unit and outdoor unit When serial signal from the outdoor unit cannot be received though normal serial signal is sent to the outdoor unit E04 1 When serial signal cannot be received continuously for 60 seconds S code communication 2 Communication is still not successful for 80 seconds through three retries if serial signal cannot be received for 20 seconds after new communication f code starts When the remote controller starts operation serial transmission starts with the new communication format Auto reset When successful regular communication is made C
44. ro Unit A separate contactor supplied locally must be used to supply the booster heater The booster heater can be installed only for room heating and cannot be used for hot water supply Install the booster heater downstream of the 3 way valve on the indoor unit side The booster heater is an external heater supplied locally used to assist the Hydro Unit during low ambient conditions The AC230 V 1 A output from the Hydro Unit must only be used to energize an external contactor Supplied locally The output from the Hydro Unit is only enabled when the outdoor air temperature is less than 10 C Ensure the external booster heater is installed and set up in accordance with all Local National and International regulations e Connect the external booster heater to the Hydro Unit in accordance with the diagram shown below e Connect the coil of the field supplied contactor to terminals 5 amp 6 on Terminal Block 05 The contactor will energize in the event of low ambient conditions e A separate dedicated electrical supply must be used for the external booster heater This must be connected through the contacts on the field supplied contactor Y Fig 7 23 Booster Heater l1 2 s 4 s e 7 8 Terminal Block 05 Electrical connection for external additional pumps e The Hydro Unit has the facility to connect an additional circulating pump if required into the heating or cooling system e There is an output available from
45. the Hydro Unit AC230 V 1 A maximum is available from each output The output for each additional pump is synchronized with the operation of the main circulating pump inside the Hydro Unit Connect the additional pumps as shown in the diagram below e Connect external pump 1 to terminals 1 amp 2 on Terminal Block 05 Install external pumps so that their motive power does not affect the internal pump Y Fig 7 24 T213 141516 7 819 Terminal Block 05 295 24 EN 25 EN Hydro Unit Installation Manual 3 way valve diverter connection Required Valve Specification Electrical Specification 230 V 50 Hz lt 100 mA Valve Diameters Port A Port B 1 1 4 Return Mechanism 3 types of 3 way valve diverter can be used Set the 3 way valve in use with the DIP switch SW13 1 on the Hydro Unit board SW13 1 Type 1 2 wire spring return OFF Type 2 3 wire SPST OFF Type 3 3 wire SPDT ON NOTE Continuous operation of the valve motor at the fully open position is not recommended e The 3 way diverter valve is used to select either domestic hot water or space heating e Connect the 3 way diverter valve to terminals 7 8 and 9 on Terminal Block 05 e Connect the 3 way diverter valve in accordance with the diagram below Y Fig 7 25 Y Fig 7 26 Type 1 SPRING RETURN Type 2 SPST port A to Hot water port A to Hot water cylinder ansa odio cylinder fe Hydro Unit
46. to a combustible gas If a combustible gas leaks and stays around the unit a fire may occur Install the refrigerant pipe securely during installation and before operation If the compressor is operated with no pipe work connected and valves open the compressor will suck air which would result in over pressurization of the system which may result in bursting or injury Observe the same precautions for refrigerant recovery work pump back procedure to outdoor unit and do not disconnect pipe work until refrigerant is recovered and valves closed T 2 4 EN 5 EN Hydro Unit Installation Manual Ab WARNING nstallation Precautions Ask an authorized dealer or qualified installation professional to install maintain the Air to Water Heat Pump System Inappropriate installation may result in water leaks electric shock or fire Electrical work must be performed by a qualified electrician in accordance with the installation manual An inappropriate power supply capacity or installation may result in fire When completing any electrical works to the system ensure that all Local National and International regulations are satisfied Inappropriate grounding may result in electric shock Use the specified electrical cables fixing securely at all terminations Earth wire connections Install an earth leakage breaker without fail Incomplete grounding can cause electric shock Do not ground wires to gas pipes water pipes lightning rods or telephone
47. ttings ORG N The CL C 7 button is enabled only before the SET C_ button is pressed and the function code is changed 6 Press the TEST button to end the settings lt Setting Remote Controller Function Code gt 1 Press the TEST CLO TEMP Ce GG buttons for four seconds or more to enter the P LI U remote controller function code setting mode DD Set the function code CODE No with the N SIR _ TEMP Ce 4 buttons CODE No 01 to 13 HH DUU pata LUI LU HU Set data DATA with the TIME Cr buttons dl Press the SET _ button to determine the settings The CL C_ button is enabled only before the SET C_ button is pressed and the function code is changed O Om P GA N Press the TEST button to end the settings 31 EN _ 32 Hydro Unit _ Installation Manual Main setting items 1 Setting Hot Water Temperature Range function code 18 to 1F Set the temperature range for heating zone 1 zone 2 cooling and hot water e The upper limit and lower limit temperatures of each mode can be set 2 Setting Heat Pump Operation Conditions for Hot Water Supply function code 20 and 21 e Setthe heat pump start water temperature and heat pump stop water temperature e The heat pump starts working when the water temperature lowers below the set start water temperature It is recommended that the default value be used 3 Compensating Hot Water Temperature function code
48. unit should be checked when it is delivered and any damage reported immediately to the courier claims the department E Positioning Refrigeration pipe The length and height of the refrigeration pipe must be within the following values As long as the Hydro Unit is installed within these ranges no additional refrigerant is required Y Fig 7 01 H Max 30 m above or below L Max 30 m Min HWS 802H E 5 m HWS 1102H E 3 m HWS 1402H E 3m 11 10 EN 11 EN Hydro Unit 8 Installation Manual Water pipe Design the water pipe length within the QH characteristics of the pump Refe to Fig 7 16 and Fig 7 17 on page 19 The height of the pipe must be 7 m or less Y Fig 7 02 III H lt 7m Service space Secure a service space for the Hydro Unit e Do not install the Hydro Unit in a place where heat stagnates Y Fig 7 03 500 mm lt gt Mounting Install M10 bolts at the positions shown below and secure them with nuts Y Fig 7 04 380 mm 960 mm 12 Hydro Unit Installation Manual The Hydro Unit can be installed directly without using the fixing angles However the back side of the Hydro Unit can be highly heated therefore the installing surface must be heat resistant Y Fig 7 05 Y Fig 7 07 M10 M10 I I Remove the Mia screws to Secure the Hydro Unit with detach the fixing angles plain washers and nuts Install the Hydro
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