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Energy Save AWH11-V5+ User Manual Download Page 90

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Front panel

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valve

Electric box 

Fixing plate for plate heat 
exchanger

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valve

Service valve

Connector for water pump

Water outlet pipe

Plate heat exchanger

Cable gland

Needle valve for drain

Water flow switch

Indoor PCB

Cable clip

Casing

Water pump

Electric box cover

Wired controller

Pressure release valve

Refrigerant expansion tank

AWH9/11-V5+IIU

TEMP.SENSOR(ROOM)

TEMP.SENSOR(COOLING)

TEMP.SENSOR(HEATING)

TEMP.SENSOR(HOT WATER)

TEMP.SENSOR(COIL PIPE 
FOR SYSTEM1)

TEMP.SENSOR(WATER OUTLET)

TEMP.SENSOR(WATER INLET)

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Summary of Contents for AWH11-V5+

Page 1: ...User manual User manual Direct Current Frequency Conversion Heater keep this manual for future use Before operating this product please read the instruction carefully and AWH9 11 13 20 V5 ...

Page 2: ......

Page 3: ...2 7 2 8 Water pipe connection 2 9 Air purging 2 10 Test run 13 16 17 18 19 27 33 34 35 36 1 Before use 2 Installation 4 1 Introduction of maintenance 4 2 Cleaning of water filter 4 3 Cleaning of plate heat exchanger 4 4 4 5 Condenser coil 4 6 4 7 Gas charging Service of outdoor unit Trouble shooting 78 78 78 79 80 80 84 3 1 Introduction of operation panel 3 2 3 3 3 4 3 5 Parameter Setting Overview...

Page 4: ...derstand their meaning which concerns 1 3 Safety precautions 1 2 Symbol description This appliance is not intended for use by persons including children with reduced physical sensory or mental capabilities or lack of experience and knowledge unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety Children should be supervised ...

Page 5: ...s manual before use Before taking shower please always add a mixture valve before water tap and set it to proper temperature Ground wire Use a dedicated socket for this unit otherwise malfunction may occur The power supply to the unit must be grounded Do not touch the air outlet grill when fan motor is running Do not touch the power plug with wet hands Never pull out the pulg by pulling the power ...

Page 6: ...rent device RCD having a rated residual operating current not exceeding 30 mA is advisable ON OFF Please select the correct fuse or breaker as per recommended Steel wire or copper wire cannot be taken as substitute for fuse or breaker Otherwise damaged maybe caused Be aware finger might be hurt by the fin of the coil System water filling T P valve Connect to heating cooling system Buffer tank Conn...

Page 7: ...under wide range of input voltages from 160V 260V and soft starting with lower current draw at each compressor start up Auto restart function keeps all settings in memory and automatically resumes the operation after a power failure 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 wit...

Page 8: ...ype Quantity System TwinRotary 1 TwinRotary 2 Fan Quantity 1 1 2 2 Airflow m h 3000 3100 4200 3000x2 Rated power W 76 76 76x2 76x2 Noise Level Indoor Outdoor dB A 43 62 45 65 46 65 35 66 Water Side Heat Exchanger Type Plate Heat Exchanger Plate Heat Exchanger Plate Heat Exchanger Plate Heat Exchanger Water Pressure Drop kPa 23 23 26 35 Piping Connection Inch G1 G1 G1 G1 Allowable Water Flow Min Ra...

Page 9: ...2 5 bar Safety valve release pressure 60L Minimum water volume for a buffer tank 2 8 1 BEFORE USE Minimum water inlet temperature in heating or hot water mode 23 ...

Page 10: ...ixture Pressure release valve 1 2 Connector 3 8 Connector Wire clip Service valve Indoor Pressure release valve Cable Fixture Pipe Connector Pipe Connector Needle valve for drain Wire clip Service valve 1 2 Connector 3 8 Connector 1 2 Connector 3 8 Connector AWH20 V5 9 1 BEFORE USE ...

Page 11: ...Outdoor AW13 V5 Handle Valve cover Refrigerant connector Intlet Intlet Outlet Feet Outdoor Outlet Air intlet Air intlet Feet Valve cover Pipe Connector Handle Pressure gauge AW9 11 V5 10 1 BEFORE USE ...

Page 12: ...Outdoor Outlet Air intlet Air intlet Feet Pressure gauge Handle Cable gland AWH20 V5 1 7 Working principle 11 1 BEFORE USE ...

Page 13: ...t pressure 0 05MPa 0 5 bar at 95 liquid temperature H Insulation class Liquid temperature to 95 TF 95 Equipment class I Motor protection Overload protection Approvals and marking VDE CE 3 Q m h m H kPa p Q l s 2 4 4 4 3 Q m h W P1 EEI UPM GEO 25 85 180 1X230V 50 60Hz Electrical data 1X230V 50Hz 12 80 60 40 20 0 0 8 6 4 2 0 23 0 0 0 4 0 8 1 2 1 6 2 0 2 4 2 8 3 2 3 6 4 0 4 4 0 0 0 2 0 4 0 6 0 8 1 0 ...

Page 14: ...so demands that the backup source have a working controller to control the supply temperature to the heating system When the heating demand exceeds the heat pump capacity the backup source automatically starts supporting the heat pump This means the heat pump curve or temperature controller should be set slightly above the existing heating source controller Then heat pump will always have the prio...

Page 15: ... put directly on the water lines For more stable running of the heat pump we suggest to place the sensors on the return line and adjust the heating curve or cooling temperature accordingly to fit the normal Delta T for your heating cooling system Heat pump setting temperature is now controlled at the actual location of these sensors Pump Buffer tank TH TW TC Heating Cooling system Pump Bufer tank ...

Page 16: ...ling water and hot water This application needs a 2 changing valves accessories to change the water direction according to the set temperature for heating cooling and hot water Place the TH heating sensor in the sensor pocket in the upper part of the heater buffer tank Place the TC cooling sensor in the sensor pocket in the upper part of the cooling buffer tank If your system don t contain buffer ...

Page 17: ...earance to provide free air citculation through the coil Please refer to the following figure to choose the right place for the unit 3 The outdoor unit should be placed at least 2M away from the ventilation outlet of kitchen to keep the unit clean 4 The indoor unit should be hung on the wall with the water connectors downwards 2 2 Installation precautions 16 2 INSTALLATION ...

Page 18: ...o 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 2 3 Installation of indoor unit For the installation of the indoor unit please refers to the followings 1 Mark out the positions of the unit bracket on the wall 2 Drill the holes on the wall 3 Fix unit bracket with expansion bolt...

Page 19: ...unit on two concrete blocks or a raised concrete platform Please make sure that the unit is securely fastened after installation 6 Please refer the dimension of outdoor unit when choose a suitable wall bracket A If needs to hang the outdoor unit on the wall please do as followings 1 Adjust the location of the wall according to the distance between two feet of the unit 2 Fix the on the wall with ex...

Page 20: ...able on top of indoor unit according to the label and connect it to main power as shown in the pictures below A Main power cable A Main power in user side B Power cable between indoor and outdoor unit 1 The indoor front panel is fixed by four magnets in two sides of door Please take off the front panel as fig 1 2 Remove one screw in left side of electric box then open the door of electric box to r...

Page 21: ...re wire 4 Connect this power cable to L N and G on indoor terminal block according to the wiring diagram of indoor unit 5 Fasten the cable gland to ensure the cable won t get loosen 6 Connect the other side of the power cable to the outdoor unit according to the wiring diagram Fix the cable with cable fixture to ensure it won t get loose Shown as L N G on wiring diagram G N L 20 2 INSTALLATION ...

Page 22: ...amage on insulation layer of one core wire 1 Insert one end of this cable through the cable gland on top of the indoor unit and connect this cable to A B on terminal block 2 Fasten the cable gland to ensure the cable won t get loosen 3 Connect the other end to the terminal block on outdoor unit A B on outdoor unit should be connected with A B on indoor unit otherwise unit will show communication f...

Page 23: ...n power cable A B C D Fig 1 1 Main power cable has connected into the terminal block of indoor unit Please find the cable on top of indoor unit according to the label and connect it to main power as shown in the pictures below Power cable indoor unit for system 1 Fig 3 Power cable indoor unit for system 2 AWH20 V5 22 2 INSTALLATION ...

Page 24: ...nsert the cable from this cable gland Power cable between indoor and outdoor unit stystem 1 Power cable between indoor and outdoor unit stystem 2 1 The indoor front panel is fixed by four magnets in two sides of door Please take off the front panel as fig 1 2 Remove one screw in left side of electric box then open the door of electric box to right side as fig 2 Fig 1 Fig 3 23 2 INSTALLATION ...

Page 25: ...one core wire 2 Connect this power cable to L N and G on indoor terminal block according to the wiring diagram of indoor unit 3 Fasten the cable gland to ensure the cable won t get loosen 4 Connect the other side of the power cable to the outdoor unit according to the wiring diagram Fix the cable with cable fixture to ensure it won t get loose Shown as L N G on wiring diagram 24 2 INSTALLATION ...

Page 26: ...mage on insulation layer of one core wire 1 Insert one end of this cable through the cable gland on top of the indoor unit and connect this cable to A B on terminal block 2 Fasten the cable gland to ensure the cable won t get loosen 3 Connect the other end to the terminal block on outdoor unit A B on outdoor unit should be connected with A B on indoor unit otherwise unit will show communication fa...

Page 27: ...ors to the place you wish to have the units temperature readings for the controller For example if the unit is connected to a buffer tank or accumulating water tank it is more efficient to let the heat pump be controlled by the water temperature in the water tank 1 Disconnect the sensor with the quick connector inside the indoor unit 2 Insert the sensor cable from indoor PCB through cable gland on...

Page 28: ...wrench if you are unsure Never turn the fixed connections Use the spanner only as a counter hold during connection If a counter hold is not used the connections can turn which can destroy them Tighten the connections 24 hours after installation has been completed IMPORTANT Note that the pipes in the installation kit are filled with gas and must not be cut under any circumstances The plastic plugs ...

Page 29: ... the connections can turn which can destroy them Tigthen the connections 24 hours after installation has been completed Check the seals and tighten the couplings again 12 24 hours after installation Check for leaks by wetting with soapy water Also check the connections at the indoor unit If no bubbles appear the couplings are properly connected and tightened B For the unit with flare nut connectio...

Page 30: ...ose the pressure gauge and stop vacuuming refer fig 5 6 Ture off the vacuum pump and install the cooper nut back to the high pressure connector refer fig 6 7 Use a 5mm hex wrench to open two valves on the unit as shown in the picture refer fig 7 8 refer fig 8 Connect the other tube of the pressure gauge to the outdoor unit Check with leakage detector or soap water if there is any leakage If not th...

Page 31: ...AWH20 V5 30 2 INSTALLATION ...

Page 32: ... 31 2 INSTALLATION ...

Page 33: ... 32 2 INSTALLATION ...

Page 34: ...ig 1 and 2 2 Connect pressure release valve with copper pipe and put a sealing ring between them to avoid leakage as fig 3 and 4 3 Pass the copper pipe through the casing and it stick out from the bottom of the unit 4 Connect the other side of pressure release valve with the connector on top of indoor unit and put a sealing ring between them to avoid leakage Fasten the pressure release valve by a ...

Page 35: ...sulated The insulation must be tied up tightly without gap But please don t wrap up the check valve for future maintenance Insulation Please ensure enough water pressure to send the water to the required height If the water pressure is not enough that cause the system has too small water flow rate please add water pump to increase the pumping head 1 Chloridion element in the water should be less t...

Page 36: ...ease valve on the top before the unit start up When water runs freely through the pipe close the release valve 1 2 The above application illustration is just for reference Different installation application has different operations for air purging But the theory is the same Check the water flow direction open the valves to fill the water tank and all the pipings with water Use the air purging valv...

Page 37: ... all piping for leaks and air is well ventilated Pre Start up If everything above is OK the unit can start up If any of them fails please fix it A When the installation of unit is completed water system pipes are well connected and air purging is done no leakage or other problems the unit can be powered to start up B Turn on the unit press the on off button on the operation panel to start the unit...

Page 38: ...g speed of compressor and fan motors in selected time periode Deicing the outdoor unit evaporator when ice is build up Self learning not adjustable Shown when digits is correspondent with temperatures Shows selected temperature values when unit is on or parameter setting values Symbol display when selected flickers when activated shown in Symbol display when selected flickers when activated shown ...

Page 39: ...ater mode Indicates that heating cooling mode is set to Timer operation and weather it is in ON periode and if unit actually is working in this mode 2 shows that Timer for heating cooling mode is selscted and that unit is within its ON periode OFF indicates that unit is not working in heating cooling mode at the moment Button switch the entire unit on and off Button a so have some parameter settin...

Page 40: ...rameter The value start flickering Use button to adjust the value or button to adjust setting in hours button to adjust the setting in minutes if this parameter is a time parameter Timer function ON OFF 0 OFF Hot Water Timer ON 1 00 00 Hot Water Timer OFF 1 00 00 Hot Water Timer ON 2 00 00 Hot Water Timer OFF 2 00 00 Heating Cooling Timer ON 1 00 00 Heating Cooling Timer OFF 1 00 00 Heating Coolin...

Page 41: ...ater T Cooling restarts based on water T Cooling and heating switch judgment User level Parameter Check in ON OFF Set in OFF User 5 2 2 0 OFF Page in the menu 52 52 40 DHW Set Temp 16 34 17 35 18 36 Heating Set Temp Cooling Set Temp Room Set Temp Ambient temperature Hot water temperature Heating water temperature Cooling water temperature Room temperature Unit outlet temperature Unit inlet tempera...

Page 42: ...ss SET to confirm the setting Item Sub menu Unit Statue Operation Level Default factory settings Advanced Setting Group 0 Test working mode indoor controller External ON OFF switch Water flow switch Heating buffer tank Cooling buffer tank Priority switch between hot water and heating operation Refrigerant collecting function Lock Function Installer OFF 0 Normal operation 0 Invalid 60 sec 0 No 0 No...

Page 43: ...ture Secondary Anti freezing Starting Water Temperature Secondary Anti freezing Ending Water Temperature Secondary 60 120 min 1 ON 5 2 5 2 15 Manual ON OFF of Heater in Hot Water Mode Backup Heating Source For Hot Water Mode Priority Of Backup Heating Sources For Hot Water Mode Compared With Unit Auxiliary Heater Temperature Increasement Checking Duration in Hot Water Mode Maximum Allowable Set Wa...

Page 44: ...ater Temp 4 Ambient Temp 5 Ambienttemp 5 Vs Water Temp 5 12 25 7 28 2 31 7 35 20 42 Heat Recovery Function Hot Water Restart Based On T in Heat Recovery Operation Hot Water Stop Based On T in Heat Recovery Operation Allowable Temp Drift In Heating in Shifting Priority Operation Hot Water Min Working Hours in Shifting Priority Operation Heating Max Working Hours in Shifting Priority Operation Worki...

Page 45: ...orking mode settings in accordance to your heating hot water cooling system When the unit is ON press M to set the unit working mode For each time M is pressed working mode is changed by the below sequence When a working mode is selected its symbol s will be shown on the screen The current working mode of the unit is shown by a flickering working mode symbol Picture shows that heating and hot wate...

Page 46: ...mperature by 1 Note 1 If heating curve function is activated set temperature for heating will be calculated according to the set curve automatically Its set temperature can t be adjusted by this operation 2 If room temperature control mode is activated temperature set here for heating and cooling is based on room temperature Room Temperature Control Temperature setting Combined working mode When c...

Page 47: ... 23 59 00 00 23 59 Timer function ON OFF Hot Water Timer ON 1 Hot Water Timer OFF 1 Hot Water Timer ON 2 Hot Water Timer OFF 2 Heating Cooling Timer ON 1 Heating Cooling Timer OFF 1 Heating Cooling Timer ON 2 Heating Cooling Timer OFF 2 Normal Shower Time for unit with heat recovery function only Anti legionella function Anti legionella function starting time Pump anti block running time Quiet ope...

Page 48: ...lt Value 0 0 off 1 on Timer function ON OFF Meaning of each parameter Hot Water Timer 1 1 2 2 3 3 4 4 Parameter No Parameter No Meaning Meaning Range Default Value Value 00 00 04 00 00 00 09 00 00 00 14 00 00 00 21 00 00 00 23 59 00 00 23 59 00 00 23 59 00 00 23 59 Hot Water Timer ON 1 Hot Water Timer ON 1 Hot Water Timer OFF 1 Hot Water Timer OFF 1 Hot Water Timer ON 2 Hot Water Timer ON 2 Hot Wa...

Page 49: ...ing heating Timer ON period Unit will work for both hot water and cooling heating mode not in same time when needed This symbol means the unit is neither in hot water nor cooling heating Timer ON period Unit will work not work for both hot water and cooling heating mode even needed Normal Shower Time Parameter No Meaning Range Default Value 9 00 00 00 00 23 59 Normal Shower Time for unit with heat...

Page 50: ...ter is still not enough for shower unit will activate standard hot water operation instead of using recovered heat to heat up the shower water Parameter 10 is used to activated or deactivate Anti legionella function Parameter 11 is used to set the starting time of Anti legionella function During the hot water operation unit will record the highest hot water temperature it produced If in 7 24 hours...

Page 51: ...ling water temperature Room temperature Unit outlet temperature Unit inlet temperature System 2 temperature indoor coil System 2 voltage V System 2 current A System 2 Hz compressor speed System 2 comp discharge temp System 2 temperature outdoor coil System 2 suction temperature System 2 evaporating pressure System 2 condensing pressure System 2 EEV position System 1 indoor coil temperature System ...

Page 52: ...r each paramter in sequence Value of the parameter Sequence of the parameter Press SET to activate setting of current parameter with its value blinks Value of the parameter blinks Press or to adjust the value and confirm the setting by pressing SET again If no operation for 5 seconds it exit to Off mode In OFF mode default paramter settings of factory can be recovered by pressing M 51 ...

Page 53: ...alue set in parameter 4 unit activate heating operation When Ambient temperature is higher than value set in parameter 5 unit activate cooling operation If setting via External Signal an external room thermostat or central control system in the building can control the cooling or heating requirements by connecting it to the respective signal ports The signals are simple 1 0 on off signals List of ...

Page 54: ... has Water Temperature Control as default However when a room temperature sensor is connected to the unit and a more precise control of room temperature where the sensor is placed is preferred Room Temperature Control mode can be selected And the ideal room temperature can be set via this parameter Note When Room Temperature Control mode is selected system will not operate under the heating curve ...

Page 55: ...parameter D3 D5 D7 D9 and DB should be in negative direction or say in other way D3 D5 D7 D9 DB otherwise the setting of the value may not saved Parameter No Meaning Range Default Value D3 D4 D5 D6 D7 D8 D9 DA DB DC Ambient Temp 1 Ambienttemp 1 Vs Water Temp 1 Ambient Temp 2 Ambienttemp 2 Vs Water Temp 2 Ambient Temp 3 Ambienttemp 3 Vs Water Temp 3 Ambient Temp 4 Ambienttemp 4 Vs Water Temp 4 Ambi...

Page 56: ...USEAGE As shown here actual set water temperature TSha is calculated according to actual ambient temperature Ta according to this created curve A C B D E DC DA D8 D6 D4 DB D9 D7 D5 D3 Tsha TSh T Ta Ta 55 ...

Page 57: ... value Press SET to confirm the input password If the password is correct Advanced Setting mode is activated If the password is incorrect it exits to OFF mode Operation in Advanced Setting menu Complete Advanced Setting menu is divided into 6 groups Group 0 Group E When Advanced Setting menu is activated press to switch between each group Group 0 A B C D E press Press or to switch different parame...

Page 58: ...he output signals of the indoor control system When this function is activated indoor control system will activate the relay on the PCB when correspondent port on PCB is short connected 0 Parameter No Meaning Range Default Value 0 0 normal 1 testing Indoor Control System Working Mode Port On PCB Relay Output Funtion ES FS HS CS IRES ES FS ES HS ES CS ES IRES CS HS W W EVC EVW SH AS HW PUMPH PUMPC ...

Page 59: ...If it is set to any value except 0 unit starts to check the statue of flow switch after unit circulation pump starts for this set time If flow switch is in open statue at this time unit will show failure code 00 P7 which means not enough water flow rate Note If unit circulation pump is OFF flow switch should in open statue as there should has no flow in the system If not unit will take it as the f...

Page 60: ...adjust the value of the blinking value Parameter No Meaning Range Default Value 4 0 Cooling Buffer Tank 0 no 1 yes This parameter is used to set whether the system has a buffer tank for cooling operation It is more related to the control of circulation pump for cooling system If there has no buffer tank included in the cooling system circulation pump for cooling system will work only when the unit...

Page 61: ...ce its speed Max Allowed Duration For Min Compressor Speed When unit output is higher than demand compressor speed will be reduced If compressor has continuously work in minimum compressor speed for over time set via Max Allowed Duration For Min Compressor Speed unit stops NOTE Parameter 9 and Parameter 0a are used by the installer only to limit the function of the unit By setting the parameter to...

Page 62: ...5 20 in A5 18 Heating Cirulation Pump Stop Temperature A4 20 20 50 in 18 50 in Heating Circulation Pump Start Temperature Parameter No Meaning Range Default Value Parameter No Meaning Range Default Value A4 20 20 50 in Heating Circulation Pump Start Temperature Heating Cirulation Pump Stop Temperature A5 18 18 50 in Cooling Circulation Pump Start Temperature 18 5 20 in A6 Cooling Cirulation Pump S...

Page 63: ...ture for anti legionella function set in Advanced Menu even once then unit will activate anti legionella operation at Anti legionella function starting time Heat Pump will heat the water up to 58 together with Auxiliary Heater or Hot Water Back up Heater to get the set Anti Legionella Set Temperature and keep this temperature for Anti Legionella Duration time Anti Legionella operation is finished ...

Page 64: ...ient Temperature Secondary Anti freezing Ending Water Temperature Secondary 5 20 in B9 15 Anti freezing Starting Water Temperature Secondary 0 10 in 2 B8 Anti freezing Ending Ambient Temperature Secondary 5 0 10 in B7 Anti freezing Starting Ambient Temperature Secondary 2 0 4 in B6 Anti freezing Starting Ambient Temperature Primary 5 10 in B5 5 Anti freezing Function B4 1 0 invalid 1 valid Paramet...

Page 65: ...able Set Water Temperature in Heating Mode 0 not exceeds compressor maximum allowable water temperature 40 65 maximum allowable set water temperature in heating mode C5 42 In heating mode compressor can only work till maximum 58 water temperature But in some real cold days this temperature may still not enough for keep heating up the house then a higher allowable temperature can be set here to the...

Page 66: ...both be used as extal heating source for heating mode the Priority Of Backup Heating Sources For Heating Mode Compared With Unit Auxiliary Heater can be set to choose Backup Heating Sources For Heating Mode or unit Auxiliary Heater is preferred to be activated first 45 Parameter No Meaning Range Default Value Group E List of parameters Group D Please check the introduction on page 53 E1 E2 E3 E4 H...

Page 67: ... Priority Operation and temperature for heating has dropped over Allowable Temp Drift In Heating in Shifting Priority Operation based on set heating temperature unit switch to heating After switch to heating operation if it gets the set temperature for hot water or it has been working in heating operation for over Heating Max Working Hours in Shifting Priority Operation unit switch back to hot wat...

Page 68: ... mode and has some failure which part has this failure and the failure code will be shown as follows 00 indoor unit 01 compressor system 1 02 compressor system 2 03 Wired controller Failure code or protection code 3 5 Failure code 67 ...

Page 69: ...ertain period of time unit stops until repowered with 01 02 F7 failure code also shown on the display Check whether fan motor and water pump is working OK whether condensor is blocked whether water temperature too high and whether water inlet outlet temperature has too big difference should no bigger than 8 Compressor shut down due to high pressure switch or low pressure switch if have open caused...

Page 70: ...should be a wrong Eeprom setting on the power PCB Condensing pressure sensor failure High pressure switch failure High low pressure switch failure if system has low pressure switch 69 Possible Reasons And Solutions Compressor speed down due to abnormal low pressure detected by evaporating pressure sensor 01 02 PE Comprssor stops Check whether condensing temperature sensor is open short circuit or ...

Page 71: ...whether system has not enough refrigerant or leakage inside more likely it is not enough refrigerant that caused this abnormal evaporating pressure whether fan motor and water pump is working OK whether condensor is blocked whether EEV whether EEV works normally whether water temperature too high in heating hot water mode and whether water inlet outlet temperature has too big difference in cooling...

Page 72: ...onnected well Compressor phase current overload over current Compressor driver failure Check whether compressor drive PCB is broken or cable to compressor is wrong connected or compressor is broken Module VDC over high low voltage failure Input voltage too high or toolow Check if outdoor drive PCB is broken replace it AC current failure Check the current to outdoor unit and compare it with the uni...

Page 73: ...ystem 1 indoor coil temp sensor failure Possible Reasons And Solutions Check whether ambient temperature sensor is open short circuit or value drifts too much Replace it if necessary For a dual compressor system ambient temperature sensor for both compressor systems need to be replaced as this failure happens only when both sensors can t give the correct temperature reading For dual compressor sys...

Page 74: ...o much Check whether communication cable is correctly connected check whether communication cable is longer than 30M whether there has a source of the disturbance nearby the unit Replace the operation panel or indoor PCB if necessary Unit recovers when communication recovers If a external control unit is connected and have communication unit keeps on working if no external control unit is connecte...

Page 75: ...in a certain period of time If so it can only be recovered by repowering the unit Unit will restart after 3 minutes System water flow rate is less than minimum allowable flow rate If the same protection happens over 3 times in certain period of time unit will not restart and show too small water flow rate failure Check the water system especially the filter check the working statue of water pump C...

Page 76: ...ambient temperature and water temperature is low water system has the risk of freezing up Thus it is necessary to havethe circulation pump starts to circulate the water in the system for anti freezing purpose Water system anti freezing protection stage 2 Compressor starts automatically When unit is turned OFF if ambient temperature and water temperature is too low unit will start to work automatic...

Page 77: ...B is short connected or not If not please use a jumper to short connect this port If there has no water flow switch installed in outdoor unit please check whether LOW port on outdoor PCB is short connected or not If not please use a jumper to short connect this port Water flow switch failure preserved for monoblock unit that has water flow switch installed in outdoor unit only Compressor stops LED...

Page 78: ...F 2 JP404 position of jumper for EEPROM programing or refreshing this jumper must be taken out after programing otherwise the unit can t work 3 Connector for software burning tool 4 Dip switch on outdoor PCB 5 6 LED indicator light on outdoor Drive PCB Factory Default Setting in normal operation flickers 2s ON 2s OFF ON OFF Outdoor PCB 6 5 77 3 USEAGE ...

Page 79: ...rty or blocked 8 If the unit in winter for a long time please drain all the water inside the system to prevent the water pipes from damage due to freezing whether no special service will not be used The water filter should be cleaned according to the manual of water filter to ensure the water flow of the water system It is recommended that it be cleaned once in the first month and then once half a...

Page 80: ...s such as high pressure and low efficiency This system uses R410A refrigerant It is strictly forbidden to charge any refrigerant other than R410A into the system There must be no air in the refrigerant circulation because air will cause abnormal high pressure which will damage the gas piping and lower heating or cooling efficiency If the refrigerant leaks inside the house please keep windows open ...

Page 81: ...nser special made for air conditioner cleaning is recommended 4 Spray air conditioner cleanser into the coils Let the cleaner sit for 5 8 minutes 5 Then spray the 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 t...

Page 82: ...of the front grill Use a wrench to loosen the nut for fan blade and take out the fan blade Take off the screws of fan motor Plug out power cable for fan motor from PCB 5 Put the repaired or new fan motor back and connect all cables back 1 Cut off the power supply 2 3 4 4 MAINTENANCE 81 ...

Page 83: ...Cable connected to fan motor capacitor 4 5 4 MAINTENANCE 82 ...

Page 84: ...ate heater see picture 1 Disconnect the quick connector for bottom plate heater and take the heater out see picture 2 Put a new bottom plate heater back and connect it to the quick connector see picture 3 1 Cut off the power supply 2 3 4 bottom plate heater 1 2 bottom plate heater quick connector 3 4 MAINTENANCE 83 ...

Page 85: ... 3 Check all the valves to ensure they are fully opened 4 Clean the water filter Cause Solution 1 Check the power supply 1 Too much refrigerant 2 Air exists in refrigerantion system 3 Inadequate water flow 4 Too high water temperature 1 Discharge all refrigerant and charge the unit again with right amount 2 Discharge all refrigerant and charge the unit again with right amount 3 Check the water flo...

Page 86: ... unit restarts the compressor will start 3 minutes later self protection of compressor please check if the circuit breaker is disconnected and if there is normal power supply for the wire controller 1 Low capacity Check if the air inlet or outlet is blocked in outdoor unit check if the setting temperature is too high in cooling mode or too low in heating mode 2 4 MAINTENANCE 85 ...

Page 87: ...5 1 Outlines and dimensions Refrigerant connector dimension φ9 52 φ12 7 5 ATTACHED DRAWING unit mm unit mm Indoor Outdoor AWH9 11 13 V5 IIU AW9 V5 IOU 86 266 7 380 256 7 580 798 288 354 753 853 934 74 ...

Page 88: ...RAWING unit mm unit mm Indoor Outdoor Refrigerant connector dimension φ9 52 φ12 7 1195 1171 407 740 159 1058 1124 460 Refrigerant connector dimension φ9 52 φ16 AW11 V5 IOU AW13 V5 IOU 87 904 343 414 763 964 1044 74 ...

Page 89: ...5 ATTACHED DRAWING Refrigerant connector dimension φ9 52 φ12 7 unit mm unit mm Indoor Outdoor 924 5 1429 7 414 460 500 530 2 776 6 273 8 AWH20 V5 IIU AWH20 V5 IIU 88 ...

Page 90: ...changer Cable gland Needle valve for drain Water flow switch Indoor PCB Cable clip Casing Water pump Electric box cover Wired controller Pressure release valve Refrigerant expansion tank AWH9 11 V5 IIU TEMP SENSOR ROOM TEMP SENSOR COOLING TEMP SENSOR HEATING TEMP SENSOR HOT WATER TEMP SENSOR COIL PIPE FOR SYSTEM1 TEMP SENSOR WATER OUTLET TEMP SENSOR WATER INLET 89 1 2 3 4 5 6 7 8 9 10 11 12 13 14 ...

Page 91: ... heat exchanger Cable gland Needle valve for drain Water flow switch Indoor PCB Cable clip Casing Water pump Electric box cover Wired controller Pressure release valve AWH13 V5 IIU 20 21 22 23 24 25 26 TEMP SENSOR ROOM TEMP SENSOR COOL TEMP SENSOR HEAT TEMP SENSOR HOT WATER TEMP SENSOR COIL PIPE FOR SYSTEM1 TEMP SENSOR WATER OUTLET TEMP SENSOR WATER INLET 90 1 2 3 4 5 6 7 8 9 10 11 14 15 16 17 18 ...

Page 92: ...r heater for 9KW Compressor discharge temp sensor 11 12 14 13 15 16 Compressor suction temp sensor High pressure switch Low pressure sensor High pressure sensor 17 18 19 20 NO Name Condenser for 11KW Condenser for 9KW DC fan motor Compressor 1 2 connector 3 8 connector High pressure gauge EEV EEV coil 4 way valve Fan 1 2 3 4 5 7 6 9 8 4 way valve coil PFC transducer 10 91 1 2 3 4 5 6 7 8 9 10 11 1...

Page 93: ...ure sensor Compressor discharge temperature sensor Four way valve 1 2 3 4 5 6 7 8 9 High pressure sensor Electronic expansion valve LVD Controller Four bit terminal block 10 11 12 13 23 PFC transducer Transformer Main Power PCB Gas liquid separator Compressor 3 8 connector Fan Evaporator 5 8 connector 24 Three bit Terminal block Mould board and PFC board two small PCB DC fan motor 92 1 2 3 4 5 6 7...

Page 94: ...ater pump Plate heat exchanger Cable gland Needle valve for drain Water flow switch Indoor PCB Cable clip Casing Water pump Electric box cover Wired controller 1 2 3 4 5 7 6 8 9 10 11 12 15 16 18 13 14 17 3 8 connector for system 1 1 2 connector for system 1 1 2 connector for system 2 3 8 connector for system 2 Indoor AWH V5 IIU 20 93 ...

Page 95: ...Outdoor 5 ATTACHED DRAWING 5 6 2 13 14 15 16 17 18 18 26 27 28 29 30 31 5 6 7 8 9 10 11 12 19 20 21 22 23 24 25 AW V5 IOU 20 94 ...

Page 96: ...5 3 Wiring diagram 5 ATTACHED DRAWING Take Care This diagram is subject to change with improvement of the unit Always refer to the diagram supplied with the product Indoor AWH9 11 13 V5 95 ...

Page 97: ...5 ATTACHED DRAWING Take Care This diagram is subject to change with improvement of the unit Always refer to the diagram supplied with the product Indoor AWH20 96 ...

Page 98: ...5 ATTACHED DRAWING Outdoor Take Care This diagram is subject to change with improvement of the unit Always refer to the diagram supplied with the product AW9 11 V5 97 AW13 V5 ...

Page 99: ...5 ATTACHED DRAWING Take Care This diagram is subject to change with improvement of the unit Always refer to the diagram supplied with the product Outdoor AW20 V5 98 ...

Page 100: ...R120400472 V1 5 ...

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