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16.5.26 Indoor Water Inlet Temperature Sensor Abnormality (F37)

Malfunction Decision Conditions:

During startup and operation of cooling and heating, the temperatures detected by the indoor water inlet
temperature sensor are used to determine sensor error.

Malfunction Caused:

1 Faulty

connector

connection.

2 Faulty

sensor.

3 Faulty indoor unit PCB (main).

Abnormality Judgment:

Continue for 5 seconds.

Содержание WH-MDC06E3E5

Страница 1: ...cuit WARNING This service information is designed for experienced repair technicians only and is not designed for use by the general public It does not contain warnings or cautions to advise non technical individuals of potential dangers in attempting to service a product Products powered by electricity should be serviced or repaired only by experienced professional technicians Any attempt to serv...

Страница 2: ...12 18Two ways valve control 62 13 Protection Control 63 13 1 Protection Control For All Operations 63 13 2 Protection Control for Heating Operation 65 13 3 Protection Control for Cooling Operation 66 14 Servicing Mode 67 14 1 Test Run 67 14 2 Proper Pump Down Procedure 67 14 3 How To Adjust Water Flow Rate 67 14 4 Expansion Vessel Pre Pressure Checking 67 15 Maintenance Guide 68 16 Troubleshooting...

Страница 3: ...current will cause electrical shock or fire 6 Do not tie up the power supply cord into a bundle by band Abnormal temperature rise on power supply cord may happen 7 Do not insert your fingers or other objects into the unit high speed rotating fan may cause injury 8 Do not sit or step on the unit you may fall down accidentally 9 Keep plastic bag packaging material away from small children it may cli...

Страница 4: ...umulates near or around the Mono bloc unit 2 Do not release refrigerant during piping work for installation re installation and during repairing a refrigeration parts Take care of the liquid refrigerant it may cause frostbite 3 Make sure the power supply cord does not contact with hot part i e water piping High temperature may cause insulator of power supply cord damage hence electrical shock or f...

Страница 5: ...e Diameter Gas mm inch Type Hermetic Motor Rotary Motor Type Brushless 4 poles Compressor Rated Output kW 1 70 Type Propeller Fan Material PP Motor Type Induction 8 poles Input Power W Output Power W 60 Fan Fan Speed rpm Cooling 700 Heating 580 Fin material Aluminium Pre Coat Fin Type Corrugated Fin Row Stage FPI 2 30 17 Heat Exchanger Size W H L mm 38 1 762 903 8 873 8 Item Unit Mono Bloc Unit He...

Страница 6: ...ch Refrigerant Pipe Diameter Gas mm inch Inlet mm inch 30 1 3 16 Water Pipe Diameter Outlet mm inch 30 1 3 16 Water Drain Hose Inner Diameter mm inch 15 00 19 32 Type Canned WILO stratos PARA Speed rpm 1200 4450 Pump Input Power W 56 Type Brazed Plate No of Plates 48 Size W x H x L mm 93 x 81 x 325 Hot Water Coil Water Flow Rate l min m 3 h Cooling 15 8 0 9 Heating 17 2 1 0 Pressure Relief Valve W...

Страница 7: ...r Gas mm inch Type Hermetic Motor Rotary Motor Type Brushless 4 poles Compressor Rated Output kW 1 70 Type Propeller Fan Material PP Motor Type Induction 8 poles Input Power W Output Power W 60 Fan Fan Speed rpm Cooling 700 Heating 640 Fin material Aluminium Pre Coat Fin Type Corrugated Fin Row Stage FPI 2 30 17 Heat Exchanger Size W H L mm 38 1 762 903 8 873 8 Item Unit Mono Bloc Unit Height mm i...

Страница 8: ...inch Refrigerant Pipe Diameter Gas mm inch Inlet mm inch 30 1 3 16 Water Pipe Diameter Outlet mm inch 30 1 3 16 Water Drain Hose Inner Diameter mm inch 15 00 19 32 Type Canned WILO stratos PARA Speed rpm 1200 4450 Pump Input Power W 66 Type Brazed Plate No of Plates 48 Size W x H x L mm 93 x 81 x 325 Hot Water Coil Water Flow Rate l min m 3 h Cooling 20 0 1 2 Heating 25 8 1 6 Pressure Relief Valve...

Страница 9: ...r protector to protect compressor Serviceability Improvement Breakdown Self Diagnosis function System Status Check Buttons for servicing purpose System Service Mode Button for servicing purpose Front maintenance design for mono bloc unit Operation Condition Water outlet temperature C Ambient temperature C Maximum 20 43 COOLING Minimum 5 16 Maximum 55 35 HEATING Minimum 25 20 NOTICE When the outdoo...

Страница 10: ...10 4 Location of Controls and Components 4 1 Mono Bloc Unit ...

Страница 11: ...11 4 1 1 Main Components ...

Страница 12: ...12 4 1 2 Location of Control 4 1 2 1 Remote Control The user interface allows the installer and user to setup use and maintain the unit ...

Страница 13: ...13 ...

Страница 14: ...14 ...

Страница 15: ...15 4 1 3 Weekly Timer Setting ...

Страница 16: ...16 4 1 4 Setting Up The Special Functions ...

Страница 17: ...17 5 Dimensions 5 1 Mono Bloc Unit ...

Страница 18: ...18 6 Refrigeration and Water Cycle Diagram ...

Страница 19: ...19 ...

Страница 20: ...20 7 Block Diagram ...

Страница 21: ...21 8 Wiring Connection Diagram ...

Страница 22: ...22 ...

Страница 23: ...23 9 Electronic Circuit Diagram ...

Страница 24: ...24 ...

Страница 25: ...25 10 Printed Circuit Board 10 1 Water System 10 1 1 Main Printed Circuit Board ...

Страница 26: ...26 10 1 2 Solar Printed Circuit Board Optional ...

Страница 27: ...27 10 2 Refrigerant System 10 2 1 Main Printed Circuit Board ...

Страница 28: ...28 10 2 2 Capacitor Printed Circuit Board 10 2 3 Noise Filter Printed Circuit Board ...

Страница 29: ...29 11 Installation Instruction Mono Bloc Unit Dimension Diagram ...

Страница 30: ...30 Main Components ...

Страница 31: ...f the discharged air Avoid installing the Mono bloc unit at a location where suction side may be exposed directly to wind If Mono bloc unit installed near sea region with high content of sulphur or oily location e g machinery oil etc it lifespan maybe shorten When installing the product in a place where it will be affected by typhoon or strong wind such as wind blowing between buildings including ...

Страница 32: ...ealer which can withstand the pressures and temperatures of the system Make sure to use two spanners to tighten the connection Tighten the nuts with torque wrench 117 6 N m If non brass metallic piping is used for installation make sure to insulate the piping to prevent galvanic corrosion Do not use pipes that are crushed or deformed If these inferior pipes are used it may cause unit malfunction M...

Страница 33: ...efore being connected to the terminal block The cable cover must be screw properly and must not be removed 3 Secure the cable onto the control board with the holder clamper Connecting with external device optional 1 All connections shall follow to the local national wiring standard 2 It is strongly recommended to use manufacturer recommended parts and accessories for installation 3 Maximum output ...

Страница 34: ... be 2 x min 0 3 mm2 double insulation layer with insulation strength of min 30V of PVC sheathed or polychloroprene sheathed cable 9 External Controller shall be connected to 1 pole switch with min 3 0mm contact gap connection refer to Diagram 4 2 Its cable must be 2 x min 0 5 mm2 double insulation layer of PVC sheathed or polychloroprene sheathed cable note When making such connection kindly remov...

Страница 35: ... liaise with supply authority to ensure that the service current capacity at the interface point is sufficient for the installation of the equipment The equipment s power supply 2 complies with IEC EN 61000 3 12 The equipment s power supply 2 shall be connected to a suitable supply network with the following maximum permissible system impedance Zmax at the interface for models 0 236Ω Please liaise...

Страница 36: ...edium sized square outlet box obtain locally Part No DS3744 Panasonic Co Ltd or equivalent 2 Secure the remote control lower case to the outlet box with the two accessory screws 3 Make sure that the lower case is flat against the wall at this time with no bending 3 Pass the remote control cable 2 into the box 4 Route the remote control cable 2 inside the lower case through rear feeding out directi...

Страница 37: ...on How to connect Remote Control to Provided Connector for detail 4 Reinstall the cabinet front plate after connection complete 11 4 3 4 Disposal of Mono Bloc Unit Drain Water When a Drain elbow is used please ensure to follow below o The unit should be placed on a stand which is taller than 50mm o Cover the 8 holes ø20mm with Rubber cap refer to illustration below o Use a tray field supply when n...

Страница 38: ... Compressor is OFF when Water Outlet Temperature Internal Water Setting Temperature 2 C for continuously 3 minutes Compressor is ON after waiting for 3 minutes if the Water Outlet Temperature Water Inlet Temperature temperature at thermostat OFF is triggered 3 C 12 1 2 Cooling Operation 12 1 2 1 Thermostat control Compressor is OFF when Water Outlet Temperature Internal Water Setting Temperature 1...

Страница 39: ...39 Cool Mode Operation Time Chart 12 1 4 Cool Tank Mode Operation ...

Страница 40: ...continuous 3 minutes heat pump OFF Heatpump THERMO ON TEMP 1 Heat pump THERMO ON TEMP Water inlet during thermo off time 3 C 2 Heat pump ON back when water outlet temperature Heat pump THERMO ON TEMP iii Case 3 Heat pump THERMO OFF TEMP 1 Water inlet temperature 55 C for continuous 60 secs heat pump OFF Heat pump THERMO ON TEMP 1 Heat pump THERMO ON TEMP Water inlet temperature 55 C Booster heater...

Страница 41: ...41 ...

Страница 42: ...42 ...

Страница 43: ...oom Thermo OFF AND Solar 3 ways valve OFF 2 Heat pump operation control o During External Room Thermo ON time When room thermo ON heat pump must operate to room side Heat pump operate follow normal operation at room side o During External Room Thermo OFF time Switch 3 ways valve to tank side IF Under Solar Priority Set condition o Tank temperature Tank THERMO ON TEMP AND Solar Valve OFF Under Sola...

Страница 44: ... Heat pump THERMO OFF TEMP 1 Heat pump THERMO OFF TEMP 55 C 2 C 2 Water outlet temperature Heat pump THERMO OFF TEMP for continuous 3 minutes heat pump OFF o Next THERMO ON TEMP 1 THERMO ON TEMP Water inlet when heat pump THERMO OFF 3 C 2 If water outlet temperature THERMO ON TEMP AND External Room Thermo OFF heat pump ON Case 3 o Heat pump THERMO OFF TEMP 1 Water inlet temperature 55 C for contin...

Страница 45: ...operation specification Under solar priority is set condition when solar 3WV turn ON booster heater will turn OFF and 3 ways valve switch to room side Under solar priority is not set condition solar 3WV will OFF when heat pump operate to tank side o 2 way valve opens ...

Страница 46: ...temperature or 51 C whichever lower Heat pump Water Outlet set temperature is set to Maximum 55 C during tank interval Initial Tank THERMO ON TEMP heat pump tank target temperature 2 C Case 1 THERMO OFF TEMP 1 THERMO OFF TEMP Heat pump tank target temperature 0 C 2 Tank temperature THERMO OFF TEMP for continuous 10 seconds after heat pump off due to water thermo switch 3 ways valve to room side En...

Страница 47: ...eat up interval Booster heater ON OFF according to booster heater operation control o During tank heat up interval Once switch from heating heat up interval to tank heat up interval turn off the booster heater and start counting the BOOSTER HEATER DELAY TIMER Booster heater turn ON after BOOSTER HEATER DELAY TIMER fulfill and tank temperature lower than tank set temperature BOOSTER HEATER DELAY TI...

Страница 48: ...48 ...

Страница 49: ...49 ...

Страница 50: ...ovide heating capacity to room side by hot water through heating panel floor or fan coil 1 3 ways valve control o 3 ways valve switch and fix to heating side 2 Heat pump operate follow normal heating operation 3 Backup heater operate follow normal operation 4 Solar 3 way valve operates follow solar operation specification 5 2 way valve opens 12 1 8 2 way valve opens Water Temperature Thermo Shift ...

Страница 51: ...er flow level is detected low continuously for 10 secs the water pump and compressor will be OFF permanently and OFF ON remote control LED will blink H62 error occurs When error happen the power has to be reset to clear the error If there is no error indication the water pump shall be continuously running The water pump will remain ON when compressor OFF due to thermostat OFF setting is reached 12...

Страница 52: ...to room side 5 Press the ON OFF button to stop the unit 12 4 Flow Switch 12 4 1 Flow Switch Control 1 The water flow switch serve as an overload protector that shuts down the unit when the water level is detected to be low 2 Detection is Lo 0V when there is no water flow and detection is Hi 5V when there is water flow 12 5 Force Heater Mode Operation The backup heater also serves as backup in case...

Страница 53: ...e If the water inlet temperature exceeds 80 C for continuously 10 seconds the water pump will be OFF immediately 3 After water pump OFF for more than 10 minutes it will be ON back and the Mono bloc unit safety control checking is restarted 12 7 Auto Restart Control When the power supply is cut off during the operation of Mono bloc unit the compressor will re operate after power supply resumes 12 8...

Страница 54: ...er Mode o Heater On condition a After water pump operate 9 mins b When water outlet temperature water set temperature 8 C c 20 minutes since previous Backup heater Off o Heater Stop condition a Force mode off OR b When water outlet temperature water set temperature 2 C for continuous 15 secs Do not operate heater at the following situation 1 Water outlet temperature sensor and water inlet sensor a...

Страница 55: ... heater will continue ON for 10 minutes after deice operation ends Base pan heater OFF condition o When outdoor ambient temperature 3 C OR o When operation is not heating OR o Base pan heater ON timer count completed 12 12 Three Way Valve Control Purpose 3 ways valve is used to change flow direction of hot water from heat pump between heating side and tank side Control contents 1 3 ways valve swit...

Страница 56: ...ation by reduces Mono bloc unit noise Starting condition 1 When quiet button is presses 2 When quiet request ON time by weekly timer Refer to remote control When any of above mentioned condition is achieved this control is activated New target FM speed Present target FM speed 80 rpm Minimum target FM speed 200 rpm Cancellation condition 1 Cancel by press quiet button 2 Stop by OFF ON button 3 When...

Страница 57: ...lar Operation Control When solar priority is SET 1 Operation condition o Solar pump operates if all of the following conditions are fulfilled Power On regardless operation ON or OFF There is operation request from solar pump station Tank hot water temp is below solar on upper limit temp EEPROM 1 70 C 2 Stop condition o Solar pump stops operating when No power supply to unit OR There is NO operatio...

Страница 58: ...t OR There is NO operation request from solar pump station OR Tank hot water temp is above solar off upper limit temp EEPROM 2 77 C Heat pump thermo ON and operate to tank side During operation ON and tank mode selected Heat Tank Mode Heating Priority Not Set Solar Priority Set ...

Страница 59: ...59 Solar Priority Not Set Heat Tank Mode Heating Priority Set ...

Страница 60: ...60 Tank Mode Solar Priority Set Solar Priority Not Set ...

Страница 61: ...it OFF Short Circuit ON Set Temp Actual Temp Short Circuit ON Open Circuit OFF Wire Connection and thermo characteristic of Siemen RAA20 Setting L Y1 H Heat Thermo L Y2 C Cool Thermo Set Temp Actual Temp Open Circuit OFF Short Circuit ON Set Temp Actual Temp Short Circuit ON Open Circuit OFF Control Content External room thermostat control activate only when remote thermostat connection select YES...

Страница 62: ...ing panel Control contents 1 When indoor running in heat mode OPEN the 2 ways valve 2 When indoor running in cool mode CLOSE the 2 ways valve 3 Stop condition a During stop mode fix 2 ways valve in close condition During pump down mode fix 2 ways valve in close condition During force mode open 2 ways valve Recommended Parts SFA 21 18 Siemens ...

Страница 63: ...When the IPM temperature rises to 95 C compressor will stop immediately 2 Compressor will restart delay 3 minutes when the IPM temperature decreases to 90 C If this condition repeats continuously 3 times within 30 minutes system will stop operation and OFF ON remote control LED will blink F22 error occurs B DC Peak Current Control 1 When the current to IPM exceeds set value of 40 1 5 0 A compresso...

Страница 64: ...n for 1 minute Detection conditions o When abnormal high voltage detection 5V or when open circuit detection 0V for 5 seconds continuously After detection o When abnormality is detected continue 5 seconds unit stop operation o OFF ON remote control LED will blink H64 error occurs 13 1 8 Outside Temperature Current Control 13 1 9 Extreme Low Temperature Control Purpose To improve the compressor rel...

Страница 65: ...ion Control for Heating Operation 13 2 1 Outdoor Air Temperature Control The maximum current value is regulated when the outdoor air temperature rises above 14 C in order to avoid compressor overloading 13 2 2 Deice Operation When outdoor pipe temperature and outdoor air temperature is low deice operation start where outdoor fan motor stop 13 2 3 Heat exchanger hot water coil protection control Ba...

Страница 66: ...ressor starts Compressor frequency will adjust base on outdoor air temperature 13 3 2 Freeze Prevention Control 1 1 When Mono bloc unit Water System heat exchanger temperature is lower than 0 C continuously for 10 seconds compressor will stop operating 2 Compressor will resume its operation three minutes after the Mono bloc unit Water System heat exchanger is higher than 1 C 3 Mono bloc unit heat ...

Страница 67: ...erate the system in Sr 01 mode for pump down operation 2 After 10 15 minutes after 1 or 2 minutes in case very low ambient temperatures 10 C fully close 2 way valve 3 After 3 minutes fully close 3 way valve 4 Press the OFF ON switch on remote control to stop pump down operation 5 Remove the refrigerant piping 14 3 How To Adjust Water Flow Rate Before adjust the water flow rate make sure that the t...

Страница 68: ...sed dealer o Reinstall the cover with tighten the mounting screws properly if the pressure relief valve is functioning normal 3 Air purge valve Air purge valve must be installed at all high points in a closed water circuit system An automatic air purge valve is provided inside the indoor unit To automatically purge the air from the system turn the plug on the air outlet anticlockwise by one comple...

Страница 69: ...nal water filter field supply Clean the external water filter in regularly basic o External water filter is located inside the tube connector which is before water inlet connector of mono bloc unit indicated with WATER IN Refer to figure below o Use spanner to detach the tube connector nut o Take out the filter carefully so that not deforms it shape o Use tap water only to wash the residue on the ...

Страница 70: ...no electrical problems before inspecting the refrigeration cycle Such problems include insufficient insulation problem with the power source malfunction of a compressor and a fan The normal pressure of the refrigeration cycle depends on various conditions the standard values for them are shown in the table on the right ...

Страница 71: ... Pressure High Pressure Electric current during operation Water leakage or insufficient water flow rate in the system Excessive amount of refrigerant Inefficient compression Insufficient refrigerant gas leakage Mono bloc unit refrigerant system heat exchange deficiency Clogged expansion valve or Strainer Carry out the measurements of pressure electric current and temperature fifteen minutes after ...

Страница 72: ...IC memory To check the error code 1 When an abnormality occurs system will stop operation and OFF ON remote control LED will blink 2 Error code of the abnormality will display on the remote control Timer display LCD 3 To determine the abnormality description the Error Code Table needs to be referred To display past last error code 1 Turn ON power supply 2 Press and hold the CHECK button for more t...

Страница 73: ...e overload protection Outdoor high pressure sensor Water pump or water leakage Clogged expansion valve or strainer Excess refrigerant Outdoor PCB H99 Indoor heat exchanger freeze prevention Indoor heat exchanger Refrigerant shortage F12 Pressure switch activate 4 times occurrence within 20 minutes Pressure switch F14 Outdoor compressor abnormal revolution 4 times occurrence within 20 minutes Outdo...

Страница 74: ...e for 5 sec Water outlet temperature sensor defective or disconnected F46 Outdoor Current Transformer open circuit Insufficient refrigerant Outdoor PCB Compressor low F48 Outdoor EVA outlet temperature sensor abnormality Continue for 5 sec Outdoor EVA outlet temperature sensor defective or disconnected F49 Outdoor bypass outlet temperature sensor abnormality Continue for 5 sec Outdoor bypass outle...

Страница 75: ...ration of cooling and heating the capability rank of indoor checked by the outdoor is used to determine connection capability rank abnormality Malfunction Caused 1 Wrong model interconnected 2 Wrong indoor unit or outdoor unit PCB main used 3 Faulty indoor unit or outdoor unit PCB main Abnormality Judgment Continue for 90 seconds ...

Страница 76: ...During startup and operation of cooling and heating the temperatures detected by the compressor tank temperature sensor are used to determine sensor error Malfunction Caused 1 Faulty connector connection 2 Faulty sensor 3 Faulty outdoor unit PCB main Abnormality Judgment Continue for 5 seconds ...

Страница 77: ... During startup and operation of cooling and heating the temperatures detected by the indoor refrigerant liquid temperature sensor are used to determine sensor error Malfunction Caused 1 Faulty connector connection 2 Faulty sensor 3 Faulty indoor unit PCB main Abnormality Judgment Continue for 5 seconds ...

Страница 78: ...ove 26 C is detected by the outdoor pipe temperature sensor Malfunction Caused 1 Dust accumulation on the outdoor unit heat exchanger 2 Air short circuit at outdoor unit 3 2 way valve partially closed 4 Faulty outdoor unit fan motor 5 Refrigerant shortage refrigerant leakage 6 Clogged expansion valve or strainer 7 Faulty outdoor pipe temperature sensor 8 Faulty outdoor unit main PCB main ...

Страница 79: ...etected by the indoor water flow switch is used to determine water flow error Malfunction Caused 1 Faulty water pump 2 Water leak in system 3 Faulty connector connection 4 Faulty water flow switch 5 Faulty indoor unit PCB main Abnormality Judgment Continue for 10 seconds but no judgment for 9 minutes after compressor startup restart ...

Страница 80: ...n Conditions During operation of cooling and heating when the outdoor high pressure sensor output signal is 0Vdc or 5Vdc Malfunction Caused 1 Faulty connector connection 2 Faulty sensor 3 Faulty outdoor unit PCB main Abnormality Judgment Continue 4 times in 20 minutes ...

Страница 81: ...ndoor backup heater when no power supplies to indoor backup heater or OLP open circuit Malfunction Caused 1 Faulty power supply connector connection 2 Faulty connector connection 3 Faulty indoor backup heater overload protector OLP 4 Faulty indoor unit PCB main Abnormality Judgment Continue for 60 seconds ...

Страница 82: ...onditions When tank connection is set to ON the temperatures detected by the tank temperature sensor are used to determine sensor error Malfunction Caused 1 Faulty connector connection 2 Faulty sensor 3 Faulty indoor unit PCB main Abnormality Judgment Continue for 5 seconds ...

Страница 83: ...tion Abnormality H76 Malfunction Decision Conditions During standby and operation of cooling and heating indoor remote control error occur Malfunction Caused 1 Faulty connector connection 2 Faulty remote control 3 Faulty indoor unit PCB main ...

Страница 84: ...s normal Malfunction Caused 1 Faulty outdoor unit PCB main 2 Faulty indoor unit PCB main 3 Indoor outdoor signal transmission error due to wrong wiring 4 Indoor outdoor signal transmission error due to breaking of wire in the connection wires between the indoor and outdoor units 5 Indoor outdoor signal transmission error due to disturbed power supply waveform Abnormality Judgment Continue for 1 mi...

Страница 85: ...on Conditions During operation of tank booster heater and tank booster heater OLP open circuit Malfunction Caused 1 Faulty connector connection 2 Faulty tank booster heater overload protector OLP 3 Faulty indoor unit PCB main Abnormality Judgment Continue for 60 seconds ...

Страница 86: ...tween Indoor and Outdoor H95 Malfunction Decision Conditions The supply power is detected for its requirement by the indoor outdoor transmission Malfunction Caused 1 Insufficient power supply 2 Faulty outdoor unit PCB noise filter main ...

Страница 87: ...ssure 4 0 MPa and above is detected by outdoor high pressure sensor Malfunction Caused 1 Faulty water pump 2 Insufficient water flow rate in system 3 Water leak in system 4 2 3 way closed 5 Clogged expansion valve or strainer 6 Excessive refrigerant 7 Faulty outdoor high pressure sensor 8 Faulty outdoor unit PCB main ...

Страница 88: ...door refrigerant liquid temperature 0 C Malfunction Caused 1 Faulty water pump 2 Insufficient water flow rate in system 3 Water leak in system 4 2 way valve partially closed 5 Clogged expansion valve or strainer 6 Refrigerant shortage refrigerant leakage 7 Faulty indoor refrigerant liquid temperature sensor 8 Faulty indoor unit PCB main ...

Страница 89: ...lfunction Caused 1 Dust accumulation on the outdoor unit heat exchanger 2 Air short circuit at outdoor unit 3 Faulty water pump 4 Insufficient water flow rate in system 5 Water leak in system 6 2 3 way valve closed 7 Clogged expansion valve or strainer 8 Excessive refrigerant 9 Faulty outdoor high pressure sensor and switch 10 Faulty outdoor unit PCB Abnormality Judgment Continue 4 times in 20 min...

Страница 90: ...compressor rotation failure is detected by checking the compressor running condition through the position detection circuit Malfunction Caused 1 Compressor terminal disconnect 2 Faulty outdoor unit PCB main 3 Faulty compressor Abnormality Judgment Continue 4 times in 20 minutes ...

Страница 91: ... fan motor feedback of rotation 2550rpm or 50rpm Malfunction Caused 1 Operation stop due to short circuit inside the fan motor winding 2 Operation stop due to breaking of wire inside the fan motor 3 Operation stop due to breaking of fan motor lead wires 4 Operation stop due to fan motor Hall IC malfunction 5 Operation error due to faulty outdoor unit PCB Abnormality Judgment Continue 2 times in 30...

Страница 92: ...itions During operation of cooling and heating when outdoor current above 27 9A is detected by the current transformer CT in the outdoor unit PCB Malfunction Caused 1 Excessive refrigerant 2 Faulty outdoor unit PCB main Abnormality Judgment Continue 3 times in 20 minutes ...

Страница 93: ...ve 112 C is detected by the compressor tank temperature sensor Malfunction Caused 1 Faulty compressor tank temperature sensor 2 2 3 way valve closed 3 Refrigerant shortage refrigerant leakage 4 Clogged expansion valve or strainer 5 Faulty outdoor unit PCB main 6 Faulty compressor Abnormality Judgment Continue 4 times in 30 minutes ...

Страница 94: ...onditions During operation of cooling and heating when temperature 95 C is detected by the outdoor IPM temperature sensor Malfunction Caused 1 Faulty outdoor unit fan motor 2 Faulty outdoor unit PCB main Abnormality Judgment Continue 3 times in 30 minutes ...

Страница 95: ...of cooling and heating when outdoor DC current is above 40 1 5 0A for UD07 09CE OR 44 7 5 0A for UD12 16CE is detected by the IPM DC Peak sensing circuitry in the outdoor unit PCB main Malfunction Caused 1 Faulty outdoor unit PCB main 2 Faulty compressor Abnormality Judgment Continue for 7 times ...

Страница 96: ...ter inlet temperature refrigerant liquid temperature 5 C 4 During operation of heating indoor refrigerant liquid temperature water inlet temperature 5 C Malfunction Caused 1 Faulty water inlet or indoor refrigerant liquid temperature sensors 2 2 3 way valve closed 3 Refrigerant shortage refrigerant leakage 4 Clogged expansion valve or strainer 5 Faulty outdoor unit PCB main 6 Poor compression of c...

Страница 97: ...temperature of thermostat ON indoor unit 0 C 2 During cooling operation when the indoor pipe temperature of thermostat ON indoor unit 45 C Malfunction Caused 1 Faulty sensor 2 Faulty connector connection 3 Faulty outdoor unit PCB noise filter main 4 Faulty four way valve Abnormality Judgment Continue 4 times in 30 minutes ...

Страница 98: ...l F27 Malfunction Decision Conditions During compressor stop and outdoor high pressure switch is remain opened Malfunction Caused 1 Faulty connector connection 2 Faulty switch 3 Faulty outdoor unit PCB main Abnormality Judgment Continue for 1 minute ...

Страница 99: ... During startup and operation of cooling and heating the temperatures detected by the outdoor air temperature sensor are used to determine sensor error Malfunction Caused 1 Faulty connector connection 2 Faulty sensor 3 Faulty outdoor unit PCB main Abnormality Judgment Continue for 5 seconds ...

Страница 100: ...s During startup and operation of cooling and heating the temperatures detected by the indoor water inlet temperature sensor are used to determine sensor error Malfunction Caused 1 Faulty connector connection 2 Faulty sensor 3 Faulty indoor unit PCB main Abnormality Judgment Continue for 5 seconds ...

Страница 101: ...itions During startup and operation of heating the temperatures detected by the outdoor discharge pipe temperature sensor are used to determine sensor error Malfunction Caused 1 Faulty connector connection 2 Faulty sensor 3 Faulty outdoor unit PCB main Abnormality Judgment Continue for 5 seconds ...

Страница 102: ...ng operation of cooling and heating when the PFC protection circuitry in the outdoor unit PCB main senses abnormal high DC voltage level Malfunction Caused 1 Power supply surge 2 Compressor windings not uniform 3 Faulty outdoor unit PCB main Abnormality Judgment Continue 4 times in 10 minutes ...

Страница 103: ... During startup and operation of cooling and heating the temperatures detected by the outdoor pipe temperature sensor are used to determine sensor error Malfunction Caused 1 Faulty connector connection 2 Faulty sensor 3 Faulty outdoor unit PCB main Abnormality Judgment Continue for 5 seconds ...

Страница 104: ... During startup and operation of cooling and heating the temperatures detected by the outdoor defrost temperature sensor are used to determine sensor error Malfunction Caused 1 Faulty connector connection 2 Faulty sensor 3 Faulty outdoor unit PCB main Abnormality Judgment Continue for 5 seconds ...

Страница 105: ... During startup and operation of cooling and heating the temperatures detected by the indoor water outlet temperature sensor are used to determine sensor errors Malfunction Caused 1 Faulty connector connection 2 Faulty sensor 3 Faulty indoor unit PCB main Abnormality Judgment Continue for 5 seconds ...

Страница 106: ...rmer CT open circuit is detected by checking the compressor running frequency rated frequency and CT detected input current 0 65A for continuously 20 seconds Malfunction Caused 1 CT defective 2 Faulty outdoor unit PCB 3 Compressor defective low compression Abnormality Judgment Continue 3 times in 20 seconds ...

Страница 107: ... above is detected by outdoor high pressure sensor Malfunction Caused 1 Dust accumulation in the outdoor unit heat exchanger 2 Air short circuit at outdoor unit 3 2 way valve closed 4 Faulty outdoor unit fan motor 5 Clogged expansion valve or strainer 6 Excessive refrigerant 7 Faulty outdoor high pressure sensor 8 Faulty outdoor unit PCB main ...

Страница 108: ...he capacitor Ensure that the capacitor has discharged sufficiently before proceeding with repair work Failure to heed this caution may result in electric shocks Be sure to switch off all the power supply before performing each of the below action 17 1 To Remove The Cabinet Front Plate 17 2 To Remove The Cabinet Top Plate ...

Страница 109: ...109 17 3 To Remove The Cabinet Rear Plate 17 4 To Remove Pressure Gauge ...

Страница 110: ...110 17 5 To Remove RCCB 17 6 To Remove Transformer and Electronic Controller Board ...

Страница 111: ...e Valve When reinstall the water pipe use grease or water at the joining 17 8 To Remove Flow Switch When reinstall the water pipe use grease or water at the joining 17 9 To Remove Water Pump When reinstall the water pipe use grease or water at the joining ...

Страница 112: ...7 C DBT 6 C WBT Indoor water inlet temperature 30 C Indoor water outlet temperature 35 C 4 800 5 300 5 800 6 300 6 800 7 300 15 13 11 9 7 5 3 1 1 3 5 7 9 11 13 15 17 19 21 23 25 Outdoor Air Temperature C Capacity kW 0 900 1 100 1 300 1 500 1 700 1 900 2 100 2 300 2 500 2 700 15 13 11 9 7 5 3 1 1 3 5 7 9 11 13 15 17 19 21 23 25 Outdoor Air Temperature C Input Power kW ...

Страница 113: ...e 35 C DBT C WBT Indoor water inlet temperature 12 C Indoor water outlet temperature 7 C 4 500 5 000 5 500 6 000 18 20 22 24 26 28 30 32 34 36 38 40 42 44 Outdoor Air Temperature C Capacity kW 0 900 1 400 1 900 2 400 18 20 22 24 26 28 30 32 34 36 38 40 42 44 Outdoor Air Temperature C Input Power kW ...

Страница 114: ...WBT Indoor water inlet temperature 30 C Indoor water outlet temperature 35 C 6 800 7 300 7 800 8 300 8 800 9 300 15 13 11 9 7 5 3 1 1 3 5 7 9 11 13 15 17 19 21 23 25 Outdoor Air Temperature C Capacity kW 1 300 1 800 2 300 2 800 3 300 3 800 15 13 11 9 7 5 3 1 1 3 5 7 9 11 13 15 17 19 21 23 25 Outdoor Air Temperature C Input Power kW ...

Страница 115: ...T C WBT Indoor water inlet temperature 12 C Indoor water outlet temperature 7 C 5 300 5 800 6 300 6 800 7 300 18 20 22 24 26 28 30 32 34 36 38 40 42 44 Outdoor Air Temperature C Capacity kW 1 000 1 500 2 000 2 500 3 000 3 500 18 20 22 24 26 28 30 32 34 36 38 40 42 44 Outdoor Air Temperature C Input Power kW ...

Страница 116: ...ut Power Capacity Input Power Capacity Input Power Capacity Input Power 15 7900 3615 7600 3770 7300 3925 7000 4080 6450 4055 5900 4030 7 7800 3380 7700 3630 7600 3880 7500 4130 7550 4590 7600 5050 2 7000 2005 7000 2300 7000 2595 7000 2890 7000 3370 7000 3850 7 9000 1865 9000 2165 9000 2475 9000 2780 8950 3310 8900 3840 25 9000 990 9000 1310 9000 1630 9000 1950 9000 2200 9000 2450 18 3 Cooling Capa...

Страница 117: ...117 18 4 Hydraulic Pump Performance ...

Страница 118: ...118 19 Exploded View and Replacement Parts List 19 1 WH MDC06E3E5 WH MDC09E3E5 Refrigerant System ...

Страница 119: ...119 ...

Страница 120: ...120 Note The above exploded view is for the purpose of parts disassembly and replacement The non numbered parts are not kept as standard service parts ...

Страница 121: ...WE02C1062 29 CONTROL BOARD CASING 1 CWH10K1150 31 TERMINAL BOARD ASS Y 1 CWA28K1251 O 36 ELECTRONIC CONTROLLER CAPACITOR 1 CWA746184 O 38 ELECTRONIC CONTROLLER NOISE FILTER 1 CWA745745 44 ELECTRONIC CONTROLLER MAIN 1 CWA73C7079R CWA73C7080R O 46 REACTOR 2 G0C592J00005 O 48 TERMINAL COVER 1 CWH171039A 49 NUT TERMINAL COVER 1 CWH7080300J 50 FAN MOTOR BRACKET 1 CWD54K1052 50a SCREW FAN MOTOR BRACKET ...

Страница 122: ...122 19 2 WH MDC06E3E5 WH MDC09E3E5 Water System ...

Страница 123: ...123 Note The above exploded view is for the purpose of parts disassembly and replacement The non numbered parts are not kept as standard service parts ...

Страница 124: ...A28K1232 O 29 CIRCUIT BREAKER 2 CWA181005 O 30 TRANSFORMER COMPLETE 1 CWA40C1096 O 31 SENSOR COMPLETE 1 CWA50C2816 O 32 REMOTE CONTROL COMPLETE 1 CWA75C4020 O 33 PRESSURE GAUGE 1 CWB070001 O 34 PRESSURE RELIEF VALVE 1 CWB621092 35 PRESSURE RELIEF VALVE 1 CWB621094 37 REMOTE CONTROL CABLE 1 CWA221090 38 OPERATING INSTRUCTION 1 CWF568737 39 OPERATING INSTRUCTION 1 CWF568790 40 INSTALLATION INSTRUCTI...

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