Presentation is loading. Please wait.

Presentation is loading. Please wait.

Air-to-Water Heatpump Product Training SDC & SDF Series 22nd – 23rd July 2010.

Similar presentations


Presentation on theme: "Air-to-Water Heatpump Product Training SDC & SDF Series 22nd – 23rd July 2010."— Presentation transcript:

1 Air-to-Water Heatpump Product Training SDC & SDF Series 22nd – 23rd July 2010

2 Content Content of Product Training Product Line Up System of Model Number Product Feature Product Specification Product Dimension Product Operating Condition Competitors Product Comparison Location of Controls & Components Refrigeration Cycle & Water Circuit System Configuration Block & Wiring Diagrams Indoor Unit Installation Optional External Device Installation Operation & Control Servicing Mode Self-diagnosis Method

3 Product Line Up

4 Content Product Line Up 7kW9kW12kW14kW16kW Indoor Unit WH-SDC07C3E5 WH-SDF07C3E5 WH-SDC09C3E5 WH-SDF09C3E5 WH-SDC12C6E5 WH-SDF12C6E5 WH-SDC14C6E5 WH-SDF14C6E5 WH-SDC16C6E5 WH-SDF16C6E5 Outdoor Unit WH-UD07CE5-AWH-UD09CE5-AWH-UD12CE5-AWH-UD14CE5-AWH-UD16CE5-A

5 System of Model Number

6 WH SDF 07 C3 Heat exchange unit E System of Model Number 5 Indoor Unit WH : Air-to-Water S : Split-type D : Standard F : Heating Only ; C : Heating & Cooling Heating Capacity (kW) Generation (Development Sequence) Backup Heater Size (3: 3kW ; 6: 6kW) Destination (E: Europe) Power Source (5: Single Phase ; 8: Three Phase)

7 WH UD07 C E5 Heat exchange unit System of Model Number Outdoor Unit WH : Air-to-Water U : Split-type D : Standard Heating Capacity (kW) Generation (Development Sequence) Destination (E: Europe) Power Source (5: Single Phase ; 8: Three Phase) A Connectivity (A: SDF or SDC indoor unit)

8 Product Feature

9 353mm Content Product Feature Top Class Energy Saving & Compact Heat Exchanger Unit in Industry Optimized use of Air-to-Air Heat Pump technology to realize up to COP 4.67* Panasonic Air-to-Water * EUROVENT standard (7 o C outdoor ambient temperature / 35 o C leaving water temperature) for 16.0kW model Space saving installation with compact design of heat exchanger unit (total volume 0.158m 3 ) 502mm 892mm Volume ratio compare with Daikin Altherma 51%, Toshiba Estia 52%, Hitachi AquaFree 53% & Fujitsu General 58%

10 Content Product Feature Flexible Application & Easy Installation of Heat Pump Unit Optimize design for installation space. Long pipe specification improves the flexibility for long piping installation up to 40m* & height difference up to 30m* Pipe connection flexibility allow outdoor pipe connection in four directions (front, bottom, side, rear) to indoor heat exchanger unit Front Bottom Side Rear * for the 12kW, 14kW and 16.0kW models Maximum 40m Pipe Length Maximum 30m Height Difference

11 Content Product Feature Easy Maintenance, Monitoring Operation of Heat Exchanger Unit & Weekly Timer Front maintenance design of heat exchanger unit allow front panel to be opened or closed by just three screws. Thus, service or maintenance is convenient Easy monitoring of operation status (OFF/ON, outdoor & water inlet & outlet temperatures, abnormality) from the front control panel of heat exchanger unit Control Panel It is possible to program operation in accordance with the typical weekly schedule (6 programs per day and 42 programs per week)

12 Content Product Feature Wide Range (7kW ~ 16kW), Flexibility & High Connectivity to Existing or New Installation The Aquarea offer wide ranges (7kW ~ 16kW) that adapt just as well to an existing installation as boiler backup or to a new installation with radiant floor, low- temperature radiators or even fan-coil (in heating and cooling for the SDC models). These ranges also allow connect to a solar kit to increase efficiency and minimise the impact of ecosystem.

13 Product Specification

14 Indoor Unit Specification (SDC) Specification items7kW9kW12kW14kW16kW Noise level dB (A)C/H : 30 Power Level dBC/H : 43 Dimension Heightmm892 Widthmm502 Depthmm353 Net weightkg4551 Refrigerant pipe diameter Liquidmm (inch)6.35 (1/4)9.52 (3/8) Gasmm (inch)15.88 (5/8) Water pipe diameter Inletmm (inch)28.00 (1-3/32) Outletmm (inch)28.00 (1-3/32) Water drainage diametermm (inch)15.00 (19/32) Water pump Motor typeCapacitor Run Induction (2.5uF)Capacitor Run Induction (5uF) No. of speed3 Input powerW Water flow ratel/minC: 17.6; H: 20.1C: 20.4; H: 25.8C: 28.7; H: 34.4C: 33.0; H: 40.1C: 35.0; H: 45.9 Pressure relief valvekPaOpen: 190; Close: 183 and below Protective device (RCCB)A40 Expansion vessel volumel10 Electrical heaterkW

15 Product Specification Indoor Unit Specification (SDF) Specification items7kW9kW12kW14kW16kW Noise level dB (A)30 Power Level dB43 Dimension Heightmm892 Widthmm502 Depthmm353 Net weightkg4349 Refrigerant pipe diameter Liquidmm (inch)6.35 (1/4)9.52 (3/8) Gasmm (inch)15.88 (5/8) Water pipe diameter Inletmm (inch)28.00 (1-3/32) Outletmm (inch)28.00 (1-3/32) Water drainage diametermm (inch)15.00 (19/32) Water pump Motor typeCapacitor Run Induction (2.5uF)Capacitor Run Induction (5uF) No. of speed3 Input powerW Water flow ratel/min Pressure relief valvekPaOpen: 190; Close: 183 and below Protective device (RCCB)A40 Expansion vessel volumel10 Electrical heaterkW

16 Heat exchange unit Product Specification Outdoor Unit Specification (SDC) Specification items7kW9kW12kW14kW16kW *Cooling capacitykW EERW/W *Heating capacitykW *COPW/W Noise level dB (A)C/H: 48C: 50; H: 49C/H: 50C: 52; H: 51C: 54; H: 53 Power Level dBC/H: 66C: 68; H: 67 C: 70; H: 68C: 72; H: 70 Dimension Heightmm Widthmm900 Depthmm320 Net weightkg66106 Refrigerant control deviceExpansion valve Refrigerant oilcm 3 FV50S (900)FV50S (1200) Refrigerant (R410A)kg Refrigerant pipe diameter Liquidmm (inch)6.35 (1/4)9.52mm (3/8) Gasmm (inch)15.88 (5/8) Standard pipe lengthm7 Pipe length rangem3 ~ 303 ~ 40 Maximum height differencem2030

17 Product Specification Outdoor Unit Specification (SDC) Specification items7kW9kW12kW14kW16kW Additional gas chargingg/m3050 Refrigerant chargelessm1030 Compressor TypeHermetic motor Motor typeBrushless (4-pole) Rated outputkW Fan TypePropeller fan Motor typeTransistor (8-pole) Output powerW60 SpeedRPMC: 670; H: 580C: 700; H: 640 C: 600 (top); 640 (bottom) H: 510 (top); 550 (bottom) C: 630 (top); 670 (bottom) H: 540 (top); 580 (bottom) C: 630 (top); 670 (bottom) H: 580 (top); 620 (bottom)

18 Heat exchange unit Product Specification Outdoor Unit Specification (SDF) Specification items7kW9kW12kW14kW16kW *Heating capacitykW *COPW/W Noise level dB (A) Power Level dB Dimension Heightmm Widthmm900 Depthmm320 Net weightkg66106 Refrigerant control deviceExpansion valve Refrigerant oilcm 3 FV50S (900)FV50S (1200) Refrigerant (R410A)kg Refrigerant pipe diameter Liquidmm (inch)6.35 (1/4)9.52mm (3/8) Gasmm (inch)15.88 (5/8) Standard pipe lengthm7 Pipe length rangem3 ~ 303 ~ 40 Maximum height differencem2030

19 Product Specification Outdoor Unit Specification (SDF) Specification items7kW9kW12kW14kW16kW Additional gas chargingg/m3050 Refrigerant chargelessm1030 Compressor TypeHermetic motor Motor typeBrushless (4-pole) Rated outputkW Fan TypePropeller fan Motor typeTransistor (8-pole) Output powerW60 SpeedRPM (top); 550 (bottom) 540 (top); 580 (bottom) 580 (top); 620 (bottom)

20 Product Dimension

21 Heat exchange unit Product Dimension Indoor Unit Dimension (7kW ~ 16kW) Unit: mm

22 Heat exchange unit Product Dimension Outdoor Unit Dimension (7kW ~ 9kW) Unit: mm 30cm

23 Heat exchange unit Product Dimension Outdoor Unit Dimension (12kW ~ 16kW) Unit: mm 30cm

24 Product Operating Condition

25 Heat exchange unit Product Operating Condition IndoorOutdoor Water outlet temperature ( o C)Ambient temperature ( o C) Cooling Maximum2043 Minimum516 Heating Maximum5535 Minimum25-20 Product Operating Condition When outdoor temperature is out of the above temperature range, the cooling or heating capacity will drop significantly and outdoor unit might stop for protection control.

26 Location of Controls & Components

27 Location of Controls & Components Indoor Unit Control Panel (7kW ~ 16kW) * for the SDF control panel, there’s no Cool Mode Indicator *

28 Location of Controls & Components Indoor Unit Control Panel (7kW ~ 16kW) * for the SDF control panel, there’s no Water set temperature during cool mode (5 o C ~ 20 o C) *

29 Location of Controls & Components Indoor Unit Control Panel (7kW ~ 16kW) * for the SDF control panel, there’s no Cool + Tank and Cool Mode selection *

30 Location of Controls & Components Indoor Unit Control Panel (7kW ~ 16kW)

31 Location of Controls & Components Indoor Unit Control Panel (7kW ~ 16kW)

32 Location of Controls & Components Indoor Unit Control Panel (7kW ~ 16kW)

33 Heat exchange unit Indoor Unit Components Location of Controls & Components (Activate when water pressure exceeds 0.20MPa) (10L)

34 Refrigeration Cycle & Water Circuit

35 Heat exchange unit Refrigeration Cycle & Water Circuit

36 System Configuration

37

38 Block & Wiring Diagrams

39 Indoor Unit & Outdoor Unit Block Diagram (7kW ~ 9kW)

40 Block & Wiring Diagrams Indoor Unit & Outdoor Unit Block Diagram (12kW ~16kW)

41 Heat exchange unit Block & Wiring Diagrams Indoor Unit Wiring Diagram (7kW ~ 9kW)

42 Heat exchange unit Block & Wiring Diagrams Indoor Unit Wiring Diagram (12kW ~ 16kW)

43 Heat exchange unit Block & Wiring Diagrams Outdoor Unit Wiring Diagram (7kW ~ 9kW)

44 Heat exchange unit Block & Wiring Diagrams Outdoor Unit Wiring Diagram (12kW ~ 16kW)

45 Indoor Unit Installation (7kW ~ 16kW)

46 Heat exchange unit Indoor Unit Installation Indoor Unit Installation Diagram IMPORTANT: Cover refrigerant circuit’s tube connectors and pipes properly to prevent water or moisture from entering the circuit during installation and service work. Failing to do so may cause the system to malfunction. * For SDF models, 2-way valve cable is NOT required Ø28.00mm (1-3/32”)

47 Heat exchange unit Indoor Unit Installation How to Fix Installation Plate

48 Heat exchange unit Indoor Unit Installation Install The Indoor Unit

49 Heat exchange unit Indoor Unit Installation Water Pipe Installation 1. The minimum requirement of water in the system is 30 litres (for 7kW ~ 9kW models) and 50 litres (for 12kW ~ 16kW models). If this value could not be achieved, please install additional buffer tank (field supply). 2. Cover the pipe end to prevent dirt and dust when inserting it through wall. 3. Must install an external filter (30 mesh or more, field supply) before water inlet connector of indoor unit (indicated with “WATER IN”). 4. Use Rp 1-1/4” nut for both water inlet and water outlet connection and clean all piping with tap water before install. 5. Be sure to use two spanners to tighten the connection with 117.6N.m torque. Over tightening will cause water leakage. 6. Make sure to insulate the water circuit pipes to prevent reduction of heating and cooling capacity. 7. Mount the PS foam and long banding strap (factory supply as accessory for SDC models) to water inlet and water outlet connectors. * Only applicable for SDC models.

50 Heat exchange unit Indoor Unit Installation Drain Hose Installation

51 Heat exchange unit Indoor Unit Installation Drain Elbow & Hose Installation (for SDC models only)

52 Heat exchange unit Indoor Unit Installation Electrical Cable Connection (7kW ~ 9kW) (4 x 4.0 or 6.0mm 2 ) (3 x 4.0mm 2 ) (3 x 4.0 or 6.0mm 2 ) Power Supply 1 - For indoor and outdoor units. Power Supply 2 - For indoor unit backup heater (3kW) and tank unit booster heater (3kW) Terminal board for external device connection

53 Heat exchange unit Indoor Unit Installation Electrical Cable Connection (12kW ~ 16kW) (4 x 4.0 or 6.0mm 2 ) (3 x 4.0 or 6.0mm 2 ) (3 x 1.5mm 2 ) Power Supply 1 - For indoor and outdoor units. Power Supply 2 - For indoor unit backup heater (6kW) Power Supply 3 - For tank unit booster heater (3kW) (3 x 4.0mm 2 ) Terminal board for external device connection

54 Heat exchange unit Indoor Unit Installation Electrical Cable for Optional External Device (Field Supply) * for the SDC models

55 Heat exchange unit Indoor Unit Installation Optional External Device Connecting Requirement Maximum output power of tank booster heater should be ≤ 3kW. Install a solar connection PCB (CZ- NS1P) when solar station is utilized. Must connect a jumper between terminal no.13 & no.14, when there’s no tank OLP connection. * for the SDC models 1-pole (min 3.0mm contact gap)

56 Optional External Device Installation

57 (a) External Room Thermostat Recommended external room thermostat: To connect an external room thermostat, make sure set the external thermo controller connection to YES through Special Functions Setting REMOTE indication will display when external thermo controller connection is set to YES REV200

58 Optional External Device Installation (a) External Room Thermostat

59 Optional External Device Installation (b) 3- Way Valve Control Recommended 3- way valve kit: 3-way valve function: To change the flow direction of hot/cold water to room side or hot water to tank side. (Room Side) (AB -> A: CLOSE) VXI46/25 (AB -> B: OPEN) (Tank Side) 1. During STOP/HEAT/COOL/FORCE HEATER/PUMPDOWN MODE, relay is default at terminal no.04. (AB -> B: OPEN) 2. During TANK MODE, relay is switched to terminal no.05. (AB -> A: OPEN) SFA21/18

60 Optional External Device Installation (c) 2- Way Valve Control (for SDC models only) Recommended 2- way valve kit: 2-way valve function: To allow hot water to radiant floor and/or radiator or to block cold water to radiant floor and/or radiator. SFA21/18 VVI46/25 (A -> AB: CLOSE) 1. During STOP/TANK/COOL/PUMPDOWN MODE, relay is default at terminal no.01. (A -> AB: CLOSE) 2. During HEAT/FORCE HEATER MODE, relay is switched to terminal no.02. (A -> AB: OPEN) (radiant floor/radiator)

61 Optional External Device Installation (c) Solar Connection PCB (CZ-NS1P) & Control 1. When solar station pump P2 OFF, CZ-NS1P relay is default at terminal no.20. AB -> A (CLOSE) and tank unit is not heat-up by solar station. 2. When solar station pump P2 ON, CZ-NS1P relay will switch to terminal no.21. AB -> A (OPEN) and tank unit is heat-up by solar station. Connecting cable length must NOT exceed 10m !

62 Optional External Device Installation (c) Solar Connection PCB (CZ-NS1P)

63 Operation & Control

64 (a) Cool Mode Operation (only for the SDC models) OFF 1. Thermostat OFF: water outlet temp. < water set temp o C (continuously for 3 mins). 2. Thermostat ON: water outlet temp. > water inlet temp. (at the time of thermostat OFF is triggered) + 3 o C (3 mins delay restart). 3. Solar OFF: tank temp. > 77 o C; Solar ON: tank temp. < 70 o C. 4. Indoor water pump always ON. Backup & Booster Heaters

65 Heat exchange unit Operation & Control (b) Cool + Tank Mode Operation (only for the SDC models) 1. Thermostat OFF: water outlet temp. < water set temp o C (continuously for 3 mins). 2. Thermostat ON: water outlet temp. > water inlet temp. (at the time of thermostat OFF is triggered) + 3 o C (3 mins delay restart). 3. Solar OFF: tank temp. > 77 o C; Solar ON: tank temp. < 70 o C. 4. Indoor water pump always ON. OFF

66 Operation & Control (c) Heat Mode Operation OFF ON 1. Thermostat OFF: water outlet temp. > water set temp o C (continuously for 3 mins). 2. Thermostat ON: water outlet temp. < water inlet temp. (at the time of thermostat OFF is triggered) - 3 o C (3 mins delay restart). 3. Backup heater OFF: water outlet temp. > water set temp. - 2 o C (continuously for 15 secs). 4. Backup heater ON: water outlet temp. < water set temp. - 8 o C AND after 20 mins since previous OFF. Booster Heater

67 Operation & Control (d) Tank Mode Operation ON OFF 1. Water set temp. = tank set temp. or 55 o C whichever is lower. 2. Thermostat OFF: tank temp. > water set temp. + 2 o C (continuously for 3 mins). 3. Thermostat ON: tank temp. < water set temp. - 3 o C AND water pump ON for 3 mins. 4. Water pump ON: tank temp. < tank temp. (at the time thermostat OFF is triggered) - 3 o C. 5. When solar priority is set, heatpump and booster heater OFF when solar request ON way valve always OFF.

68 Operation & Control (d) Tank Mode Operation ON OFF 1. Water set temp. = tank set temp. or 55 o C whichever is lower. 2. Thermostat OFF: tank temp. > water set temp. + 2 o C (continuously for 3 mins). 3. Thermostat ON: tank temp. < water set temp. - 3 o C AND water pump ON for 3 mins. 4. Water pump ON: tank temp. < tank temp. (at the time thermostat OFF is triggered) - 3 o C way valve always OFF. If solar priority is not set, solar 3WV ON only after heatpump thermostat OFF.

69 Operation & Control (e) Heat + Tank Mode Operation (Heating No Priority) OFF/ON ON 1. During heating heat-up interval, switch to tank heat-up when heating heat-up interval ends, and tank temp. < tank set temp. - 3 o C (AND solar 3WV OFF if solar priority is set) is fulfilled 2. During tank heat-up interval, switch to heating heat-up when tank heat-up interval ends OR tank temp. > tank set temp. + 2 o C (continuously 3 mins) 3. During heating heat-up interval, backup & booster heaters ON/OFF follows normal operation control 4. Once switch to tank heat-up interval, backup & booster heaters OFF and booster heater delay timer start counting. Booster heater ON after delay timer AND tank temp. < tank set temp.

70 Operation & Control (e) Heat + Tank Mode Operation (Heating No Priority) OFF/ON ON 1. During heating heat-up interval, switch to tank heat-up when heating heat-up interval ends, and tank temp. < tank set temp. - 3 o C (AND solar 3WV OFF if solar priority is set) is fulfilled 2. During tank heat-up interval, switch to heating heat-up when tank heat-up interval ends OR tank temp. > tank set temp. + 2 o C (continuously 3 mins) 3. During heating heat-up interval, backup & booster heaters ON/OFF follows normal operation control 4. Once switch to tank heat-up interval, backup & booster heaters OFF and booster heater delay timer start counting. Booster heater ON after delay timer AND tank temp. < tank set temp. If solar priority is not set, solar 3WV ON only after switch to heating heat-up interval.

71 Operation & Control Setting Water Outlet Temperature (Heat Mode)

72 Operation & Control Water Temperature Thermo Shift Setting

73 Operation & Control Indoor Unit Backup Heater Control 1. Normal Heat Mode (i) Backup heater ON condition: - HEATER button is pressed ON - After heatpump ON for 30 mins - After water pump ON for 9 mins - When outdoor ambient temp. < outdoor set temp. for backup heater - When water outlet temp. < water set temp. - 8 o C - 20 mins since previous backup heater OFF (ii) Backup heater OFF condition: - When outdoor ambient temp. > outdoor set temp. + 2 o C (continuously for 15 secs) - When water outlet temp. > water set temp. + 2 o C (continuously for 15 secs) - When switch to tank heat-up interval - Water pump OFF - HEATER button is pressed OFF - Heatpump thermostat OFF - Heatpump OFF 2. Force Heat Mode (i) Backup heater ON condition: - FORCE button is pressed ON - After water pump ON for 9 mins - When water outlet temp. < water set temp. - 8 o C - 20 mins since previous backup heater OFF (ii) Backup heater OFF condition: - FORCE button is pressed OFF - When water outlet temp. > water set temp. - 2 o C (continuously for 15 secs) When heatpump stops due to error protection (except water outlet temp. sensor error, water inlet temp. sensor error, or flow switch error), backup heater will force ON automatically (even HEATER/FORCE is not selected).

74 Operation & Control Tank Unit Booster Heater Control (i) Tank booster heater ON condition: - When tank temp. < tank set temp. - 5 o C - 20 mins since previous booster heater OFF - After booster heater delay timer ON during heatpump startup in TANK MODE OR switching from heating heat-up interval to tank heat-up interval in HEAT + TANK MODE (ii) Tank booster heater OFF condition: - When tank temp. > tank set temp. + 2 o C (continuously for 15 secs) - When switch from heating heat-up interval to tank heat-up interval Tank set temp. + 2 o C Tank set temp. - 5 o C BOOSTER HEATER OFF BOOSTER HEATER ON

75 Operation & Control Sterilization Mode 1. Sterilization mode can be set from Special Functions setting through indoor unit control panel. 2. During sterilization mode, tank unit will be heat-up to the sterilization set temp. for a certain period of time. 3. Sterilization mode can only be set on TIMER to operate once in a week. 4. During heatpump OFF (standby), and in HEAT/COOL mode, sterilization mode will not start. 5. However, sterilization mode will be cancelled when sterilization set temp. is not achieved after 4 hours.

76 Operation & Control Solar Operation Control SOLAR indication will display when solar priority is set to YES during Special Functions setting from indoor unit control panel

77 Servicing Mode

78

79

80

81 Self-diagnosis Method

82 Heat exchange unit Self-diagnosis Method When abnormality occur during operation, the system will stop operation, and OFF/ON LED will blink and error code will display on control panel system error display LCD. Error code is stored in indoor EEPROM. - To reset control panel error code memory STEP: Press and hold ERROR RESET button (< 8 seconds) till a beep sound is heard - To read past error code stored in indoor EEPROM STEP 1: Press CHECK button (> 5 seconds) to enter status mode STEP 2: Press SEARCH UP/DOWN button to retrieve past/last error code STEP 3: Press CANCEL button or wait 30 seconds to exit status mode - To permanently erase error code stored in indoor EEPROM STEP: Press and hold ERROR RESET button (> 8 seconds) till a beep sound is heard CANCEL Button ERROR RESET Button CHECK Button SEARCH UP/DOWN Button System Error Display

83 Self-diagnosis Method Diagnosis Table (Indoor Unit Judgment) Diagnosis DisplayAbnormality/Protection ControlAbnormality Judgment H90Indoor / outdoor abnormal communication60 seconds after operation F45Indoor water outlet temperature sensor abnormalityContinue for 5 seconds H23Indoor refrigerant liquid temperature sensor abnormalityContinue for 5 seconds H62Water flow switch abnormalityContinue for 10 seconds H76Indoor - control panel communication abnormality- F37Indoor water inlet temperature sensor abnormalityContinue for 5 seconds H12Indoor / outdoor capacity unmatched90 seconds after power supply H72Tank temperature sensor abnormalityContinue for 5 seconds H70Indoor backup heater OLP abnormalityContinue for 60 seconds H91Tank booster heater OLP abnormalityContinue for 60 seconds H99Indoor heat exchanger freeze prevention-

84 Self-diagnosis Method Diagnosis Table (Outdoor Unit Judgment) Diagnosis DisplayAbnormality/Protection ControlAbnormality Judgment H90Indoor / outdoor abnormal communication60 seconds after operation H15Outdoor compressor temperature sensor abnormalityContinue for 5 seconds F46Outdoor current transformer open circuit- F36Outdoor air temperature sensor abnormalityContinue for 5 seconds F42Outdoor heat exchanger temperature sensor abnormalityContinue for 5 seconds F40Outdoor discharge pipe temperature sensor abnormalityContinue for 5 seconds H95Indoor / outdoor wrong connection- H64Refrigerant high pressure abnormalityContinue for 5 seconds H42Compressor low pressure abnormality- F27Pressure switch abnormalityContinue for 60 seconds H98Outdoor high pressure overload protection- F15Outdoor fan motor lock abnormality2 times within 30 minutes F25Cooling / heating cycle changeover abnormality4 times within 30 minutes F41PFC control4 times within 10 minutes F24Refrigerant cycle abnormality2 times within 20 minutes

85 Self-diagnosis Method Diagnosis Table (Outdoor Unit Judgment) Diagnosis DisplayAbnormality/Protection ControlAbnormality Judgment F14Outdoor compressor abnormal rotation4 times in 20 minutes F22IPM overheating protection3 times in 30 minutes F20Outdoor compressor overheating protection4 times within 30 minutes F16Total running current protection3 times within 20 minutes F23Outdoor DC peak detection7 times continuously F12Pressure switch activate4 times within 20 minutes F43Outdoor defrost temperature sensor abnormalityContinue for 5 seconds F95Cooling high pressure overload protection-

86 Self-diagnosis Method Connection Capability Rank Abnormality (H12) Malfunction Decision Conditions: During startup operation 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.

87 Self-diagnosis Method Connection Capability Rank Abnormality (H12) Check indoor and outdoor units model number. Match the compatible model. No Troubleshooting: Is the indoor and outdoor model number matched? Check the spare part numbers of the indoor and outdoor unit PCBs and compare with their Part Lists. Matched compatibility? Change for specified indoor or outdoor unit PCB (main). Yes No Yes Replace the indoor and outdoor unit PCBs (main).

88 Self-diagnosis Method Compressor Tank Temperature Sensor Abnormality (H15) Malfunction Decision Conditions: 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.

89 Self-diagnosis Method Compressor Tank Temperature Sensor Abnormality (H15) Check the compressor tank temperature sensor: - Plug out connector from the outdoor unit PCB (main) - Measure the resistance of the compressor tank temperature sensor - Defect in compressor tank temperature sensor - Replace the compressor tank temperature sensor Yes Troubleshooting: Is the measured resistance of the compressor tank temperature sensor matches the value specified in its characteristic chart? No Check the CN-TANK connector connection: - Turn OFF the power - Check the connector connection - Connector poor contact - Correct the connection No Is the CN-TANK connector connection normal? - Defect in outdoor unit PCB (main) - Replace the outdoor unit PCB (main) Yes

90 Self-diagnosis Method Indoor Refrigerant Liquid Temperature Sensor Abnormality (H23) Malfunction Decision Conditions: 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.

91 Self-diagnosis Method Check the indoor refrigerant liquid temperature sensor: - Plug out connector from the indoor unit PCB (main) - Measure the resistance of the indoor refrigerant liquid temperature sensor - Defect in indoor refrigerant liquid temperature sensor - Replace the indoor refrigerant liquid temperature sensor Yes Troubleshooting: For safety reason and to prevent component breakdown, always switch off the power before remove and connect the component. Is the measured resistance of the indoor refrigerant liquid temperature sensor matches the value specified in its characteristic chart? No Check the CN-TH1 connector connection: - Turn OFF the power - Check the connector connection - Connector poor contact - Correct the connection No Is the CN-TH1 connector connection normal? - Defect in indoor unit PCB (main) - Replace the indoor unit PCB (main) Yes Indoor Refrigerant Liquid Temperature Sensor Abnormality (H23)

92 Self-diagnosis Method Compressor Low Pressure Protection (H42) Malfunction Decision Conditions: During operation of heating and after 5 minutes compressor ON, when outdoor pipe temperature below -29 o C or above 26 o 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 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 PCB (main).

93 Self-diagnosis Method Yes For safety reason and to prevent component breakdown, always switch off the power before remove and connect the component. No Troubleshooting: Check the dust accumulation on the outdoor unit heat exchanger. Is the outdoor unit heat exchanger dirty? Check the outdoor air passage. Provide sufficient air passage. Yes Is there any short circuit? No Yes No Clean the heat exchanger. Yes No Compressor Low Pressure Protection (H42) Check for gas leakage. Is the oil oozing out from the 2/3 way valve? Check for clogged expansion valve or strainer. Is the expansion valve or strainer clogged (ice formed)? - Replace the expansion valve and/or strainer - Reclaim and recharge refrigerant Yes - Repair the pipe flare or union nuts - Reclaim and recharge refrigerant Reclaim and recharge for a specified amount of fresh refrigerant. - Replace the outdoor unit PCB (main) - Replace the outdoor pipe temperature sensor - Replace the compressor Yes No Is abnormality happened again? Procedure complete Is the 2 way valve partially closed? Open the 2 way valve. Check the 2-way valve. Yes No Is the outdoor unit fan motor operate normally? Replace the outdoor unit fan motor and/or outdoor unit PCB (main). Check the outdoor unit fan motor operation. No

94 Self-diagnosis Method Water Flow Switch Abnormality (H62) Malfunction Decision Conditions: During operation of cooling and heating, the water flow detected 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).

95 Self-diagnosis Method Water Flow Switch Abnormality (H62) Check the indoor water flow switch: - Plug out connector from the indoor unit PCB (main) - Dismantle the water flow switch - Position the water flow switch in reverse direction (downward) - Measure the continuity of the water flow switch - Defect in indoor water flow switch - Replace the indoor water flow switch Yes Troubleshooting: For safety reason and to prevent component breakdown, always switch off the power before remove and connect the component. Is there any continuity? No Check the CN-FLOW connector connection: - Turn OFF the power - Check the connector connection - Connector poor contact - Correct the connection No Is the CN-FLOW connector connection normal? - Defect in indoor unit PCB (main) - Replace the indoor unit PCB (main) Yes Check the system water passage. Fix the system water leakage. Yes Is there any water leakage? No Check the system water pump. Is the water pump working? Replace the faulty water pump. Yes No

96 Self-diagnosis Method Outdoor High Pressure Abnormality (H64) Malfunction Decision 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.

97 Self-diagnosis Method Outdoor High Pressure Abnormality (H64) Check the continuity of the outdoor unit PCB (main) high pressure sensor connector CN-HPS: - Plug out connector from the outdoor unit PCB (main) - Measure the continuity pin 1 & 3 (GND) and pin 1 & 4 (5V) of CN-HPS Yes Troubleshooting: For safety reason and to prevent component breakdown, always switch off the power before remove and connect the component. Yes Check the CN-HPS connector connection: - Turn OFF the power - Check the connector connection - Connector poor contact - Correct the connection No Is the CN-HPS connector connection normal? No Is there any continuity? Reconnect the high pressure sensor connector to the outdoor unit PCB (main). Turn ON the power and run the system. Measure the DC voltage pin 1 & 3 (GND) of CN-HPS. Is the measured voltage 0Vdc or 5Vdc? - Defect in outdoor unit PCB (main) - Replace the outdoor unit PCB (main) - Defect in outdoor high pressure sensor - Replace the outdoor high pressure sensor Yes No - Defect in outdoor unit PCB (main) - Replace the outdoor unit PCB (main)

98 Indoor Backup Heater OLP Abnormality (H70) Self-diagnosis Method Malfunction Decision Conditions: During operation of indoor 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.

99 Self-diagnosis Method Troubleshooting: For safety reason and to prevent component breakdown, always switch off the power before remove and connect the component. Check indoor backup heater OLP continuity: - Turn OFF power supply - Reset heater 1 OLP - Measure the continuity of OLP Indoor Backup Heater OLP Abnormality (H70) Is there any continuity? Check the indoor backup heater incoming AC power supply (2): - Turn ON power supply (2) & RCCB - Measure the AC voltage between RCCB’s L1 & N1 - Measure the AC voltage between PCB’s AC2-L3 & AC2-N2 Is measured voltage 230Vac? Multimeter to measure continuity Use a test pen to push this button to reset OLP - Defect in RCCB - Replace RCCB - Terminal board assembly connector poor contact - Correct the connection or replace the indoor unit PCB (main) - Defect in indoor backup heater OLP - Replace indoor backup heater OLP Yes No Yes Check the CN-OLP1 connector connection: - Turn OFF the power - Check the connector connection - Connector poor contact - Correct the connection Is the CN-OLP1 connector connection normal? - Defect in indoor unit PCB (main) - Replace the indoor unit PCB (main) No Yes No Is the abnormality happened during operation of indoor backup heater? - Defect in indoor unit PCB (main) - Replace the indoor unit PCB (main) No Yes

100 Self-diagnosis Method Tank Temperature Sensor Abnormality (H72) Malfunction Decision Conditions: 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.

101 Self-diagnosis Method Check the tank temperature sensor: - Plug out connector from the indoor unit PCB (main) - Measure the resistance of the tank temperature sensor - Defect in tank temperature sensor - Replace the tank temperature sensor Yes Troubleshooting: For safety reason and to prevent component breakdown, always switch off the power before remove and connect the component. Is the measured resistance of the tank temperature sensor matches the value specified in its characteristic chart? No Check the terminal board assembly no. 15 and no. 16, and CN-TH2 connector connections: - Turn OFF the power - Check the connector connections - Connector poor contact - Correct the connection No Is the terminal board assembly no.15 and no. 16, and CN-TH2 connector connections normal? - Defect in indoor unit PCB (main) - Replace the indoor unit PCB (main) Yes Tank Temperature Sensor Abnormality (H72) Is the abnormality happened during tank connection set to ON? - Defect in indoor unit PCB (main) - Replace the indoor unit PCB (main) Yes No

102 Self-diagnosis Method Indoor-Control Panel Communication Abnormality (H76) Malfunction Decision Conditions: During standby and operation of cooling and heating, indoor-control panel error occur. Malfunction Caused: 1. Faulty connector connection. 2. Faulty control panel. 3. Faulty indoor unit PCB (main).

103 Self-diagnosis Method Indoor-Control Panel Communication Abnormality (H76) Check the DC voltage from the indoor unit PCB (main): - Plug out connector from the indoor unit PCB (main) - Turn ON the power - Measure the DC voltage pin1 & 4 of CN-REMOTE - Defect in remote controller (control panel) - Replace the remote controller (control panel) Yes Troubleshooting: For safety reason and to prevent component breakdown, always switch off the power before remove and connect the component. Is the remote controller (control panel) voltage 5Vdc (pin1 & 4) generated? Yes Check the CN-REMOTE connector connection: - Turn OFF the power - Check the connector connection - Connector poor contact - Correct the connection No Is the CN-REMOTE connector connection normal? - Defect in indoor unit PCB (main) - Replace the indoor unit PCB (main) No Check the control panel cable connection. - Defect in cable connection - Replace control panel cable No Is the control panel cable connection normal? Yes

104 Self-diagnosis Method Indoor/Outdoor Abnormal Communication (H90) Malfunction Decision Conditions: During operation of cooling and heating, the data received from outdoor unit in indoor unit signal transmission is checked whether it is 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 minute after operation.

105 Self-diagnosis Method Indoor/Outdoor Abnormal Communication (H90) Troubleshooting: For safety reason and to prevent component breakdown, always switch off the power before remove and connect the component. Check the indoor-outdoor units connection wires. Correct the indoor-outdoor units connection wires. Yes Is there any wiring error? Turn OFF the power and disconnect terminal 3 wire. Turn ON the power and measure Vdc between terminal 2 & 3 from the outdoor unit. Is the Vdc fluctuate between 45-60Vdc? Turn OFF the power and reconnect terminal 3 wire. Turn ON the power and again measure Vdc between terminal 2 & 3 from the outdoor unit. Is the Vdc fluctuate between 15-60Vdc? Replace the outdoor unit PCB (main). No Yes Replace the indoor unit PCB (main). No

106 Tank Booster Heater OLP Abnormality (H91) Self-diagnosis Method Malfunction Decision 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.

107 Self-diagnosis Method Troubleshooting: For safety reason and to prevent component breakdown, always switch off the power before remove and connect the component. Tank Booster Heater OLP Abnormality (H91) Check tank booster heater OLP continuity: - Turn OFF power supply - Reset tank booster heater OLP - Measure the continuity of OLP Is there any continuity? Multimeter to measure continuity Use a test pen to push this button to reset OLP - Defect in tank booster heater OLP - Replace tank booster heater OLP Yes Check the CN-OLP2 connector connection: - Turn OFF the power - Check the connector connection - Connector poor contact - Correct the connection Is the CN-OLP1 connector connection normal? - Defect in indoor unit PCB (main) - Replace the indoor unit PCB (main) No Is the abnormality happened during operation of tank booster heater? - Defect in indoor unit PCB (main) - Replace the indoor unit PCB (main) No Yes

108 Self-diagnosis Method Unspecified Voltage between 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).

109 Self-diagnosis Method Unspecified Voltage between Indoor and Outdoor (H95) Troubleshooting: For safety reason and to prevent component breakdown, always switch off the power before remove and connect the component. Check the supply voltage Correct the power supply. No Supply voltage as specified? Yes - Defect in outdoor unit PCB (main) - Replace the outdoor unit PCB (main) Check the AC voltage from outdoor unit PCB (noise filter): - Turn OFF the power - Plug out connector AC-BLK, CN-BLK & CN-WHT from the outdoor unit PCB (noise filter) - Turn ON the power - Measure the AC voltage between AC-BLK & CN-WHT Is the measured AC voltage 230V? Check the AC voltage supply to outdoor unit PCB (main): - Turn OFF the power - Reconnect connector AC-BLK, CN-BLK & CN-WHT to the outdoor unit PCB (noise filter) - Turn ON the power - Measure the AC voltage between AC-BLK & CN-WHT Is the measured AC voltage 230V? - Defect in outdoor unit PCB (noise filter) - Replace the outdoor unit PCB (noise filter) No Is the measured voltage between DCP & DCN ~325Vdc? Check the rectification voltage between DCP & DCN. Check the DC filter (capacitor) PCB connector connection. Is the DC filter (capacitor) PCB connector connection normal? - Connector poor contact - Correct the connection No Yes No Yes - Defect in outdoor unit PCB (main) - Replace the outdoor unit PCB (main) - Defect in outdoor unit PCB (main) - Replace the outdoor unit PCB (main) Yes

110 Self-diagnosis Method Outdoor High Pressure Protection (H98) Malfunction Decision Conditions: During operation of heating, when pressure 4.0MPa 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).

111 Self-diagnosis Method Check the system water pump. Is the water pump working? Check the system water passage. Readjust the water pump speed. No Is the water pump speed adjusted according to system hydraulic external static pressure? Replace the faulty water pump. No Outdoor High Pressure Protection (H98) Yes Check the system water flow rate. Is there any water leakage? Fix the system water leakage. Yes No - Replace the outdoor unit PCB (main) - Replace the outdoor high pressure sensor Check refrigerant amount. Is the additional refrigerant amount filled correctly? Reclaim and recharge with correct amount of refrigerant. No Yes Check for clogged expansion valve or strainer. Is the expansion valve or strainer clogged (ice formed)? - Replace the expansion valve and/or strainer - Reclaim and recharge refrigerant Yes No Is the 2/3 way valve closed? Open the 2/3 way valve. Check the 2/3 way valve. No Yes Troubleshooting: For safety reason and to prevent component breakdown, always switch off the power before remove and connect the component.

112 Self-diagnosis Method Indoor Freeze-up Protection (H99) Malfunction Decision Conditions: During anti-freezing control in cooling operation, when the indoor refrigerant liquid temperature < 0 o C. Malfunction Caused: 1. Faulty water pump. 2. Insufficient water flow rate in system. 3. Water leak in system 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).

113 Self-diagnosis Method Troubleshooting: For safety reason and to prevent component breakdown, always switch off the power before remove and connect the component. Indoor Freeze-up Protection (H99) Check the system water pump. Is the water pump working? Check the system water passage. Readjust the water pump speed. No Is the water pump speed adjusted according to system hydraulic external static pressure? Replace the faulty water pump. No Yes Check the system water flow rate. Is there any water leakage? Fix the system water leakage. Yes Check refrigerant amount. Is the additional refrigerant amount filled correctly? Reclaim and recharge with correct amount of refrigerant. No Yes Check for clogged expansion valve or strainer. Is the expansion valve or strainer clogged (ice formed)? - Replace the expansion valve and/or strainer - Reclaim and recharge refrigerant Yes No Is the 2 way valve partially closed? Open the 2 way valve. Check the 2 way valve. Check the indoor refrigerant liquid temperature sensor. Replace the indoor unit PCB (main). Does it conform to the sensor characteristic chart? Replace the indoor refrigerant liquid temperature sensor. Yes No Yes

114 Self-diagnosis Method Outdoor High Pressure Switch Activate (F12) Malfunction Decision Conditions: During operation of cooling and heating, when pressure 4.5MPa and above is detected by outdoor high pressure switch. Malfunction 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 minutes.

115 Self-diagnosis Method Troubleshooting: Check the system water pump. Is the water pump working? Check the system water passage. - Readjust the water pump speed - Replace outdoor high pressure sensor No Is the water pump speed adjusted according to system hydraulic external static pressure? - Replace the faulty water pump - Replace outdoor high pressure sensor No Yes Check the system water flow rate. Is there any water leakage? - Fix the system water leakage - Replace outdoor high pressure sensor Yes No - Replace the outdoor unit PCB (main) - Replace the outdoor high pressure sensor and switch For safety reason and to prevent component breakdown, always switch off the power before remove and connect the component. Check refrigerant amount. Is the additional refrigerant amount filled correctly? - Reclaim and recharge with correct amount of refrigerant - Replace outdoor high pressure sensor No Yes Check for clogged expansion valve or strainer. Is the expansion valve or strainer clogged (ice formed)? - Replace the expansion valve and/or strainer - Reclaim and recharge refrigerant - Replace outdoor high pressure sensor Yes No Outdoor High Pressure Switch Activate (F12) Check the dust accumulation on the outdoor unit heat exchanger. Is the outdoor unit heat exchanger dirty? Check the outdoor air passage. Provide sufficient air passage. Is there any short circuit? Clean the heat exchanger. Is the 2/3 way valve closed? Open the 2/3 way valve. Check the 2/3 way valve. Yes No Yes

116 Self-diagnosis Method Compressor Rotation Failure (F14) Malfunction Decision Conditions: A 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.

117 Self-diagnosis Method Compressor Rotation Failure (F14) Troubleshooting: For safety reason and to prevent component breakdown, always switch off the power before remove and connect the component. Is the blinking of the 6 LEDs in same sequence/condition? Yes Disconnect the harnesses U, V, and W from the compressor terminal. From the disconnected harnesses U, Y, and W, connect them to the inverter checker. Turn ON the power and operate the system. Check the inverter checker 6 LEDs blinking condition. - IPM defective - Replace the outdoor unit PCB (main) No Replace the compressor. Check the U, V, and W connector connection: - Turn OFF the power - Check the U, V, and W connector connection at outdoor unit PCB (main) and compressor terminal - Connector poor contact - Correct the connection Is the connector connection normal? No Yes Outdoor unit PCB (main) Compressor terminal Inverter checker

118 Self-diagnosis Method Outdoor Fan Motor (DC Motor) Mechanism Locked (F15) Malfunction Decision Conditions: The rotation speed detected by the Hall IC of the fan motor during fan motor operation is used to determine abnormal 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 minutes.

119 Self-diagnosis Method Outdoor Fan Motor (DC Motor) Mechanism Locked (F15) Troubleshooting: For safety reason and to prevent component breakdown, always switch off the power before remove and connect the component. Turn OFF the power and disconnect the fan motor connector. Turn ON the power. Replace the outdoor unit PCB (main). Check the output of the fan motor from outdoor unit PCB (main). Turn OFF the power and rotate the fan by hand. Does the fan rotate smoothly? Turn ON the power and operate the fan motor. Does it rotate? Replace the fan motor. No Yes No Is the fan motor power supply voltage ~325Vdc (pin1 & 4) generated? Is the fan motor control voltage 15Vdc (pin5 & 4) generated? Replace the outdoor unit PCB (main). Check the rotation feedback output from the fan motor. Operate the fan motor, is the rotation command voltage 1-5Vdc (pin7 & 4) generated? No Yes Stop the fan motor. Replace the outdoor unit PCB (main). No Replace the fan motor. Yes Rotate the fan motor by hand, is the rotation feedback voltage 15Vdc (pin6 & 4) generated? Replace the fan motor. Replace the outdoor unit PCB (main). No Yes

120 Self-diagnosis Method Input Over Current Detection (F16) Malfunction Decision Conditions: 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.

121 Self-diagnosis Method Troubleshooting: For safety reason and to prevent component breakdown, always switch off the power before remove and connect the component. Is the measured AC current over 27.9A? Yes Get restarted and measure the AC current from the outdoor LIVE terminal. Replace the outdoor unit PCB (main). No Check refrigerant amount. Excess refrigerant? Reclaim and recharge with correct amount of refrigerant. Replace the outdoor unit PCB (main). No Yes Input Over Current Detection (F16)

122 Self-diagnosis Method Compressor Overheating (F20) Malfunction Decision Conditions: During operation of cooling and heating, when temperature above 112 o 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.

123 Self-diagnosis Method Compressor Overheating (F20) Troubleshooting: For safety reason and to prevent component breakdown, always switch off the power before remove and connect the component. Is the 2/3 way valve closed? No Check the compressor tank temperature sensor. Replace the compressor tank temperature sensor. No Does it conform to the sensor characteristic chart? Yes No Open the 2/3 way valve. Yes Check for gas leakage. Is the oil oozing out from the 2/3 way valve? Check the 2/3 way valve. - Repair the pipe flare or union nuts - Reclaim and recharge refrigerant Check for clogged expansion valve or strainer. Is the expansion valve or strainer clogged (ice formed)? - Replace expansion valve and/or strainer - Reclaim and recharge refrigerant Yes No Reclaim and recharge for a specified amount of fresh refrigerant. - Replace the outdoor unit PCB (main) - Replace the compressor Yes No Is abnormality happened again? Procedure complete

124 Self-diagnosis Method IPM Overheating (F22) Malfunction Decision Conditions: During operation of cooling and heating, when temperature 95 o 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.

125 Self-diagnosis Method IPM Overheating (F22) Troubleshooting: For safety reason and to prevent component breakdown, always switch off the power before remove and connect the component. Is the outdoor unit fan motor operating? Yes Check the outdoor unit installation condition. - Reinstall the outdoor unit - Remove the obstacle(s) Yes Is there any improper heat radiation? No Replace the outdoor unit fan motor. No - Defect in IPM - Replace the outdoor unit PCB (main)

126 Self-diagnosis Method Output Over Current Detection (F23) Malfunction Decision Conditions: During operation 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.

127 Self-diagnosis Method Output Over Current Detection (F23) Troubleshooting: For safety reason and to prevent component breakdown, always switch off the power before remove and connect the component. Yes No Check the compressor winding resistance: - Turn OFF the power and disconnect the harnesses U, V, and W - Measure the winding resistance between U-V, V-W, and W-U Are the compressor’s winding resistance (U-V, V- W, or U-W) shorted? - Compressor defective due to winding shorted - Replace the compressor - Outdoor electronic circuit defect due to power transistor shorted - Replace the outdoor unit PCB (main)

128 Self-diagnosis Method Refrigeration Cycle Abnormality (F24) Malfunction Decision Conditions: 1. During operation of cooling and heating, compressor frequency > Frated. 2. During operation of cooling and heating, running current: 0.65A < I < 1.65A. 3. During operation of cooling, water inlet temperature - indoor refrigerant liquid temperature < 5 o C. 4. During operation of heating, indoor refrigerant liquid temperature - water inlet temperature < 5 o 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 compressor. Abnormality Judgment: Continue 2 times in 20 minutes.

129 Self-diagnosis Method Refrigeration Cycle Abnormality (F24) Troubleshooting: For safety reason and to prevent component breakdown, always switch off the power before remove and connect the component. Is the 2/3 way valve closed? No Check the water inlet and indoor ref. liquid temperature sensors. Replace the water inlet or indoor ref. liquid temperature sensor. No Does it conform to the sensor characteristic chart? Yes No Open the 2/3 way valve. Yes Check for gas leakage. Is the oil oozing out from the 2/3 way valve? Check for clogged expansion valve or strainer. Is the expansion valve or strainer clogged (ice formed)? - Replace expansion valve and/or strainer - Reclaim and recharge refrigerant Yes No Reclaim and recharge for a specified amount of fresh refrigerant. - Replace the outdoor unit PCB (main) - Replace the compressor Yes No Is abnormality happened again? Procedure complete Check the 2/3 way valve. - Repair the pipe flare or union nuts - Reclaim and recharge refrigerant

130 Self-diagnosis Method Four Way Valve Abnormality (F25) Malfunction Decision Conditions: 1. During heating operation, when the indoor pipe temperature of thermostat ON indoor unit < 0 o C. 2. During cooling operation, when the indoor pipe temperature of thermostat ON indoor unit > 45 o 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.

131 Self-diagnosis Method Is F25 occur during heating operation? Is the four way valve coil energize during cooling operation? No Check the indoor pipe temperature sensor. Replace the indoor pipe temperature sensor. No Does it conform to the sensor characteristic chart? Yes Four way valve coil disconnected (loose)? Reconnect the harness. Yes Is the harness out of the CN-HOT connector? No Replace the outdoor unit PCB (noise filter/main). Yes Troubleshooting: For safety reason and to prevent component breakdown, always switch off the power before remove and connect the component. Correct the four way valve coil. Yes Check the continuity of the four way valve coil. Replace the four way valve coil. No Disconnect the harness from the CN-HOT connector. Resistance between harness about 1.52k ohm? No Measure AC voltage supply to CN- HOT (pin1 & 3) during heating operation. Is the voltage supply to four way valve 230Vac? Replace the outdoor unit PCB (noise filter/main). Replace the four way valve. No Yes No Yes Four Way Valve Abnormality (F25)

132 Self-diagnosis Method Outdoor High Pressure Switch Abnormal (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.

133 Self-diagnosis Method Check the continuity of the outdoor high pressure switch: - Plug out outdoor high pressure switch connector from CN-PSW1 channel - Measure the connector continuity Yes Troubleshooting: For safety reason and to prevent component breakdown, always switch off the power before remove and connect the component. Yes Check the CN-PSW1 connector connection: - Turn OFF the power - Check the connector connection - Connector poor contact - Correct the connection No Is the CN-PSW1 connector connection normal? No Is there any continuity? - Defect in outdoor high pressure switch - Replace the outdoor high pressure switch - Defect in outdoor unit PCB (main) - Replace the outdoor unit PCB (main) Outdoor High Pressure Switch Abnormal (F27) Multimeter (normally close)

134 Self-diagnosis Method Outdoor Air Temperature Sensor Abnormality (F36) Malfunction Decision Conditions: 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.

135 Self-diagnosis Method Outdoor Air Temperature Sensor Abnormality (F36) Check the outdoor air temperature sensor: - Plug out connector from the outdoor unit PCB (main) - Measure the resistance of the outdoor air temperature sensor - Defect in outdoor air temperature sensor - Replace the outdoor air temperature sensor Yes Troubleshooting: For safety reason and to prevent component breakdown, always switch off the power before remove and connect the component. Is the measured resistance of the outdoor air temperature sensor matches the value specified in its characteristic chart? No Check the CN-TH1 connector connection: - Turn OFF the power - Check the connector connection - Connector poor contact - Correct the connection No Is the CN-TH1 connector connection normal? - Defect in outdoor unit PCB (main) - Replace the outdoor unit PCB (main) Yes

136 Self-diagnosis Method 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.

137 Self-diagnosis Method Indoor Water Inlet Temperature Sensor Abnormality (F37) Check the indoor water inlet temperature sensor: - Plug out connector from the indoor unit PCB (main) - Measure the resistance of the indoor water inlet temperature sensor - Defect in indoor water inlet temperature sensor - Replace the indoor water inlet temperature sensor Yes Troubleshooting: For safety reason and to prevent component breakdown, always switch off the power before remove and connect the component. Is the measured resistance of the indoor water inlet temperature sensor matches the value specified in its characteristic chart? No Check the CN-TH1 connector connection: - Turn OFF the power - Check the connector connection - Connector poor contact - Correct the connection No Is the CN-TH1 connector connection normal? - Defect in indoor unit PCB (main) - Replace the indoor unit PCB (main) Yes

138 Self-diagnosis Method Outdoor Discharge Pipe Temperature Sensor Abnormality (F40) Malfunction Decision Conditions: During startup and operation of cooling and 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.

139 Self-diagnosis Method Outdoor Discharge Pipe Temperature Sensor Abnormality (F40) Check the outdoor discharge pipe temperature sensor: - Plug out connector from the outdoor unit PCB (main) - Measure the resistance of the outdoor discharge pipe temperature sensor - Defect in outdoor discharge pipe temperature sensor - Replace the outdoor discharge pipe temperature sensor Yes Troubleshooting: For safety reason and to prevent component breakdown, always switch off the power before remove and connect the component. Is the measured resistance of the outdoor discharge pipe temperature sensor matches the value specified in its characteristic chart? No Check the CN-DIS connector connection: - Turn OFF the power - Check the connector connection - Connector poor contact - Correct the connection No Is the CN-DIS connector connection normal? - Defect in outdoor unit PCB (main) - Replace the outdoor unit PCB (main) Yes

140 Self-diagnosis Method Power Factor Correction (PFC) Abnormality (F41) Malfunction Decision Conditions: During 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.

141 Self-diagnosis Method Check the supply voltage. Correct the power supply. No Supply voltage as specified? Power Factor Correction (PFC) Abnormality (F41) Operate the system. Verify PFC abnormality by measuring the DC voltage between DCP-OUT and DCN- OUT of the outdoor unit PCB (main). - Defect in PFC circuitry - Replace the outdoor unit PCB (main) Yes Is the DC voltage between DCP- OUT and DCN-OUT normal (between Vdc)? No Yes Check the compressor winding resistance: - Turn OFF the power supply and disconnect the harnesses U, V, and W - Measure the winding resistance between U- V, V-W, and W-U Yes Troubleshooting: For safety reason and to prevent component breakdown, always switch off the power before remove and connect the component. Are the compressor’s winding resistance (U-V, V-W, U-W) uniform? Replace the compressor. Replace the outdoor unit PCB (main). No

142 Self-diagnosis Method Outdoor Pipe Temperature Sensor Abnormality (F42) Malfunction Decision Conditions: 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.

143 Self-diagnosis Method Outdoor Pipe Temperature Sensor Abnormality (F42) Check the outdoor pipe temperature sensor: - Plug out connector from the outdoor unit PCB (main) - Measure the resistance of the outdoor pipe temperature sensor - Defect in outdoor pipe temperature sensor - Replace the outdoor pipe temperature sensor Yes Troubleshooting: For safety reason and to prevent component breakdown, always switch off the power before remove and connect the component. Is the measured resistance of the outdoor pipe temperature sensor matches the value specified in its characteristic chart? No Check the CN-TH1 connector connection: - Turn OFF the power - Check the connector connection - Connector poor contact - Correct the connection No Is the CN-TH1 connector connection normal? - Defect in outdoor unit PCB (main) - Replace the outdoor unit PCB (main) Yes

144 Self-diagnosis Method Outdoor Defrost Temperature Sensor Abnormality (F43) Malfunction Decision Conditions: During startup and operation of cooling and heating, the temperatures detected by the outdoor defrost temperature sensor are used to determine sensor errors. Malfunction Caused: 1. Faulty connector connection. 2. Faulty sensor. 3. Faulty outdoor unit PCB (main). Abnormality Judgment: Continue for 5 seconds.

145 Self-diagnosis Method Check the outdoor defrost temperature sensor: - Plug out connector from the outdoor unit PCB (main) - Measure the resistance of the outdoor defrost temperature sensor - Defect in outdoor defrost temperature sensor - Replace the outdoor defrost temperature sensor Yes Troubleshooting: For safety reason and to prevent component breakdown, always switch off the power before remove and connect the component. Is the measured resistance of the outdoor defrost temperature sensor matches the value specified in its characteristic chart? No Check the CN-TH2 connector connection: - Turn OFF the power - Check the connector connection - Connector poor contact - Correct the connection No Is the CN-TH2 connector connection normal? - Defect in outdoor unit PCB (main) - Replace the outdoor unit PCB (main) Yes Outdoor Defrost Temperature Sensor Abnormality (F43)

146 Self-diagnosis Method Indoor Water Outlet Temperature Sensor Abnormality (F45) Malfunction Decision Conditions: During startup and operation of cooling and heating, the temperatures detected by the indoor water outlet 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.

147 Self-diagnosis Method Indoor Water Outlet Temperature Sensor Abnormality (F45) Check the indoor water outlet temperature sensor: - Plug out connector from the indoor unit PCB (main) - Measure the resistance of the indoor water outlet temperature sensor - Defect in indoor water outlet temperature sensor - Replace the indoor water outlet temperature sensor Yes Troubleshooting: For safety reason and to prevent component breakdown, always switch off the power before remove and connect the component. Is the measured resistance of the indoor water outlet temperature sensor matches the value specified in its characteristic chart? No Check the CN-TH1 connector connection: - Turn OFF the power - Check the connector connection - Connector poor contact - Correct the connection No Is the CN-TH1 connector connection normal? - Defect in indoor unit PCB (main) - Replace the indoor unit PCB (main) Yes

148 Self-diagnosis Method Outdoor Current Transformer Open Circuit (F46) Malfunction Decision Conditions: A current transformer (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 (main). 3. Compressor defective (low compression). Abnormality Judgment: Continue 3 times in 20 minutes.

149 Self-diagnosis Method Outdoor Current Transformer Open Circuit (F46) Troubleshooting: For safety reason and to prevent component breakdown, always switch off the power before remove and connect the component. Replace the outdoor unit PCB (main). Is the current < 0.65A? Operate heating operation. When F46 occurs again, turn OFF the power. Check the 2/3 way valve. Is the 2/3 way valve closed? Check for gas leakage. Open the 2/3 way valve. No Yes While the system is still in heating operation, check the discharge pressure. Turn ON the power, and operate heating operation. No Yes Is the oil oozing out from the 2/3 way valve? - Repair the pipe flare or union nuts - Reclaim and recharge refrigerant Yes No Measure the current from the outdoor LIVE terminal. - Defect in CT - Replace the outdoor unit PCB (main) Is the pressure unchanged (same as when compressor stop)? While the system is still in heating operation, further check (by touching) if: - Compressor discharge pipe is cold - Compressor body is warm to confirm the compressor low compression. Replace the compressor. No Yes

150 Self-diagnosis Method Cooling High Pressure Overload Protection (F95) Malfunction Decision Conditions: During operation of cooling, when pressure 4.0MPa and 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 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).

151 Self-diagnosis Method Troubleshooting: Cooling High Pressure Overload Protection (F95) - Replace the outdoor unit PCB (main) - Replace the outdoor high pressure sensor For safety reason and to prevent component breakdown, always switch off the power before remove and connect the component. Check refrigerant amount. Is the additional refrigerant amount filled correctly? Reclaim and recharge with correct amount of refrigerant. No Yes Check for clogged expansion valve or strainer. Is the expansion valve or strainer clogged (ice formed)? - Replace the expansion valve and/or strainer - Reclaim and recharge refrigerant Yes No Check the dust accumulation on the outdoor unit heat exchanger. Is the outdoor unit heat exchanger dirty? Check the outdoor air passage. Provide sufficient air passage. Yes Is there any short circuit? No Clean the heat exchanger. Yes No Is the 2 way valve closed? Open the 2 way valve. Check the 2 way valve. Yes Is the outdoor unit fan motor operate normally? Check the outdoor unit fan motor operation. Replace the outdoor unit fan motor and/or outdoor unit PCB (main). Yes No

152 Thank You


Download ppt "Air-to-Water Heatpump Product Training SDC & SDF Series 22nd – 23rd July 2010."

Similar presentations


Ads by Google