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Daikin SkyAir RZR-TA Series, Service Manual

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Daikin SkyAir RZR-TA Series Service Manual Download Page 217

SiUS281811EA

Troubleshooting by Error Codes

Part 6 Service Diagnosis

211

U4 - 01

Indoor-outdoor transmission error

Refer to the 

U4

 flowchart.

UA - 13

Refrigerant type error

The type of refrigerant used for the indoor unit is different from 

that used for the outdoor unit.

UA - 15

Not applicable for self-cleaning decoration panel 

[when the self-cleaning decoration panel

is mounted]

An outdoor unit is not applicable for the self-cleaning decoration 

panel is connected.

UA - 17

Incorrect electric heater capacity setting

Refer to page 287.

Error code

Troubleshooting

Description of error

Description of diagnosis

Summary of Contents for SkyAir RZR-TA Series

Page 1: ...Service Manual Cooling Only 60 Hz Heat Pump 60 Hz RZR TA RZQ TA Series SiUS281811EA...

Page 2: ...Diagrams 69 1 1 RZR18 24TAVJU RZQ18 24TAVJU 69 1 2 RZR30 36 42 48TAVJU RZQ30 36 42 48TAVJU 71 1 3 Indoor Unit 73 2 Functional Parts Layout 74 2 1 RZR18 24TAVJU RZQ18 24TAVJU 74 2 2 RZR18 24TAVJUA RZQ1...

Page 3: ...rol 123 5 1 Demand Operation 123 5 2 Heating Operation Prohibition 123 6 Outline of Control Indoor Unit 124 6 1 Remote Controller Thermistor 124 6 2 Thermostat Control 126 6 3 Thermostat Control with...

Page 4: ...Indoor Unit or Outdoor Unit has been Added or Indoor or Outdoor Unit PCB has been Changed 193 Part 6 Service Diagnosis 194 1 Servicing Items to be Confirmed 197 1 1 Troubleshooting 197 1 2 Precautions...

Page 5: ...or Abnormality 264 4 37 High Pressure Sensor Abnormality 265 4 38 Low Pressure Sensor Abnormality 266 4 39 PCB for Inverter Compressor Abnormality 267 4 40 Radiation Fin Temperature Rise Abnormality 2...

Page 6: ...uuming and Dehydration Procedure 298 5 8 List of Inverter Related Error Codes 299 5 9 Concept of Inverter Related Error Codes 300 5 10 Thermistor Check 301 5 11 Pressure Sensor Check 304 5 12 Broken W...

Page 7: ...S281811EA Introduction 1 1 Safety Cautions 2 1 1 Warnings and Cautions Regarding Safety of Workers 2 1 2 Warnings and Cautions Regarding Safety of Users 4 2 Icons Used 7 3 Revision History 8 Introduct...

Page 8: ...truction is shown in the illustration or near the symbol 1 1 Warnings and Cautions Regarding Safety of Workers This manual is for the person in charge of maintenance and inspection Warning Do not stor...

Page 9: ...nt The use of materials for other refrigerant models may cause a serious accident such as a damage of refrigerant cycle or equipment failure Do not mix air or gas other than the specified refrigerant...

Page 10: ...he same power outlet with other electrical appliances since it may cause an electrical shock excessive heat generation or fire Be sure to use an exclusive power circuit for the equipment and follow th...

Page 11: ...ake sure that the power cable plug is not dirty or loose then insert the plug into a power outlet securely If the plug is dusty or has a loose connection it may cause an electrical shock or fire When...

Page 12: ...nce is 1 M or greater Faulty insulation may cause an electrical shock Be sure to check the drainage of the indoor unit after the repair Faulty drainage may cause water to enter the room and wet the fu...

Page 13: ...tion is used when there is danger that the reader through incorrect manipulation may damage equipment lose data get an unexpected result or have to restart part of a procedure Note Note Note provides...

Page 14: ...Revision History SiUS281811EA 8 Introduction 3 Revision History Month Year Version Revised contents 04 2019 SiUS281811E First edition 03 2020 SiUS281811EA Model addition RZR18 48TAVJUA RZQ18 48TAVJUA...

Page 15: ...and Power Supply 10 1 1 Compatibility Table 10 1 2 Cooling Only 11 1 3 Heat Pump 12 2 External Appearance 13 2 1 Indoor Unit 13 2 2 Outdoor Unit 14 2 3 Remote Controller 15 3 Specifications 16 3 1 Coo...

Page 16: ...w The appearance specifications and functions of the new models have not been changed from the current model New model Current model Cooling Only RZR18TAVJUA RZR18TAVJU RZR24TAVJUA RZR24TAVJU RZR30TAV...

Page 17: ...8TAVJU Ceiling suspended type FHQ18PVJU RZR18TAVJU FHQ24PVJU RZR24TAVJU FHQ30PVJU RZR30TAVJU FHQ36MVJU RZR36TAVJU FHQ42MVJU RZR42TAVJU Wall mounted type FAQ18TAVJU RZR18TAVJU FAQ24TAVJU RZR24TAVJU Cei...

Page 18: ...TAVJU Ceiling suspended type FHQ18PVJU RZQ18TAVJU FHQ24PVJU RZQ24TAVJU FHQ30PVJU RZQ30TAVJU FHQ36MVJU RZQ36TAVJU FHQ42MVJU RZQ42TAVJU Wall mounted type FAQ18TAVJU RZQ18TAVJU FAQ24TAVJU RZQ24TAVJU Ceil...

Page 19: ...ound Flow with Sensing FCQ18TAVJU FCQ24TAVJU FCQ30TAVJU FCQ36TAVJU FCQ42TAVJU FCQ48TAVJU Ceiling Suspended Type FHQ18PVJU FHQ24PVJU FHQ30PVJU FHQ36MVJU FHQ42MVJU Wall Mounted Type FAQ18TAVJU FAQ24TAVJ...

Page 20: ...Air Handling Unit FTQ18TAVJUD FTQ18TAVJUA FTQ24TAVJUD FTQ24TAVJUA FTQ30TAVJUD FTQ30TAVJUA FTQ36TAVJUD FTQ36TAVJUA FTQ42TAVJUD FTQ42TAVJUA FTQ48TAVJUD FTQ48TAVJUA RZR18TAVJU RZR24TAVJU RZQ18TAVJU RZQ2...

Page 21: ...e Controller Wired remote controller BRC1E73 Wireless remote controller BRC7E83 FHQ BRC7E818 FAQ BRC4C82 FBQ 1 FTQ BRC082A43 FBQ 1 1 For FBQ series the fan step control is different according to the w...

Page 22: ...r filter Resin net with mold resistance Resin net With mold resistance Weight lbs kg 12 2 5 5 22 1 10 0 12 2 5 5 22 1 10 0 Outdoor unit RZR18TAVJU RZR24TAVJU Casing color Ivory white Ivory white Dimen...

Page 23: ...istance Weight lbs kg 12 2 5 5 22 1 10 0 12 2 5 5 22 1 10 0 Outdoor unit RZR30TAVJU RZR36TAVJU Casing color Ivory white Ivory white Dimensions H W D in mm 52 15 16 35 7 16 12 5 8 1 345 900 320 52 15 1...

Page 24: ...sistance Weight lbs kg 12 2 5 5 22 1 10 0 12 2 5 5 22 1 10 0 Outdoor unit RZR42TAVJU RZR48TAVJU Casing color Ivory white Ivory white Dimensions H W D in mm 52 15 16 35 7 16 12 5 8 1 345 900 320 52 15...

Page 25: ...et With mold resistance Weight lbs kg 12 2 5 5 22 1 10 0 12 2 5 5 22 1 10 0 Outdoor unit RZR18TAVJUA RZR24TAVJUA Casing color Ivory white Ivory white Dimensions H W D in mm 39 37 12 5 8 990 940 320 39...

Page 26: ...istance Weight lbs kg 12 2 5 5 22 1 10 0 12 2 5 5 22 1 10 0 Outdoor unit RZR30TAVJUA RZR36TAVJUA Casing color Ivory white Ivory white Dimensions H W D in mm 52 15 16 35 7 16 12 5 8 1 345 900 320 52 15...

Page 27: ...sistance Weight lbs kg 12 2 5 5 22 1 10 0 12 2 5 5 22 1 10 0 Outdoor unit RZR42TAVJUA RZR48TAVJUA Casing color Ivory white Ivory white Dimensions H W D in mm 52 15 16 35 7 16 12 5 8 1 345 900 320 52 1...

Page 28: ...7 12 5 8 990 940 320 39 37 12 5 8 990 940 320 Coil Type Cross fin coil Cross fin coil Rows Stages FPI 2 44 19 2 44 19 Face area ft m2 9 5 0 88 9 5 0 88 Compressor Model 2YC63ABXDD 2YC63ABXDD Type Herm...

Page 29: ...320 52 15 16 35 7 16 12 5 8 1 345 900 320 Coil Type Cross fin coil Cross fin coil Rows Stages FPI 2 60 19 2 60 19 Face area ft m2 12 2 1 134 12 2 1 134 Compressor Model 2YC90GXD D 2YC90GXD D Type Herm...

Page 30: ...16 35 7 16 12 5 8 1 345 900 320 Coil Type Cross fin coil Rows Stages FPI 2 60 19 Face area ft m2 12 2 1 134 Compressor Model 2YC90GXD D Type Hermetically sealed swing type Motor output kW 3 5 Fan Mode...

Page 31: ...940 320 39 37 12 5 8 990 940 320 Coil Type Cross fin coil Cross fin coil Rows Stages FPI 2 44 19 2 44 19 Face area ft m2 9 5 0 88 9 5 0 88 Compressor Model 2YC63TXD A 2YC63TXD A Type Hermetically sea...

Page 32: ...00 320 52 15 16 35 7 16 12 5 8 1 345 900 320 Coil Type Cross fin coil Cross fin coil Rows Stages FPI 2 60 19 2 60 19 Face area ft m2 12 2 1 134 12 2 1 134 Compressor Model 2YC90FXD A 2YC90FXD A Type H...

Page 33: ...5 16 35 7 16 12 5 8 1 345 900 320 Coil Type Cross fin coil Rows Stages FPI 2 60 19 Face area ft m2 12 2 1 134 Compressor Model 2YC90FXD A Type Hermetically sealed swing type Motor output kW 3 5 Fan Mo...

Page 34: ...990 940 320 39 37 12 5 8 990 940 320 Coil Type Cross fin coil Cross fin coil Rows Stages FPI 2 44 19 2 44 19 Face area ft m2 9 5 0 88 9 5 0 88 Compressor Model 2YC63ABXDD 2YC63ABXDD Type Hermetically...

Page 35: ...320 39 37 12 5 8 990 940 320 Coil Type Cross fin coil Cross fin coil Rows Stages FPI 2 44 19 2 44 19 Face area ft m2 9 5 0 88 9 5 0 88 Compressor Model 2YC63TXD A 2YC63TXD A Type Hermetically sealed s...

Page 36: ...oss fin coil Rows Stages FPI 2 44 19 2 44 19 Face area ft m2 9 5 0 88 9 5 0 88 Compressor Model 2YC63ABXDD 2YC63ABXDD Type Hermetically sealed swing type Hermetically sealed swing type Motor output kW...

Page 37: ...ws Stages FPI 2 60 19 2 60 19 Face area ft m2 12 2 1 134 12 2 1 134 Compressor Model 2YC90GXD D 2YC90GXD D Type Hermetically sealed swing type Hermetically sealed swing type Motor output kW 3 5 3 5 Fa...

Page 38: ...Rows Stages FPI 2 60 19 2 60 19 Face area ft m2 12 2 1 134 12 2 1 134 Compressor Model 2YC90GXD D 2YC90GXD D Type Hermetically sealed swing type Hermetically sealed swing type Motor output kW 3 5 3 5...

Page 39: ...FPI 2 44 19 2 44 19 Face area ft m2 9 5 0 88 9 5 0 88 Compressor Model 2YC63TXD A 2YC63TXD A Type Hermetically sealed swing type Hermetically sealed swing type Motor output kW 1 9 1 9 Fan Model P51J11...

Page 40: ...Rows Stages FPI 2 60 19 2 60 19 Face area ft m2 12 2 1 134 12 2 1 134 Compressor Model 2YC90FXD A 2YC90FXD A Type Hermetically sealed swing type Hermetically sealed swing type Motor output kW 3 5 3 5...

Page 41: ...il Rows Stages FPI 2 60 19 2 60 19 Face area ft m2 12 2 1 134 12 2 1 134 Compressor Model 2YC90FXD A 2YC90FXD A Type Hermetically sealed swing type Hermetically sealed swing type Motor output kW 3 5 3...

Page 42: ...ss fin coil Cross fin coil Rows Stages FPI 2 44 19 2 44 19 Face area ft m2 9 5 0 88 9 5 0 88 Compressor Model 2YC63ABXDD 2YC63ABXDD Type Hermetically sealed swing type Hermetically sealed swing type M...

Page 43: ...coil Cross fin coil Rows Stages FPI 2 60 19 2 60 19 Face area ft m 12 2 1 134 12 2 1 134 Compressor Model 2YC90GXD D 2YC90GXD D Type Hermetically sealed swing type Hermetically sealed swing type Moto...

Page 44: ...in coil Cross fin coil Rows Stages FPI 2 60 19 2 60 19 Face area ft m 12 2 1 134 12 2 1 134 Compressor Model 2YC90GXD D 2YC90GXD D Type Hermetically sealed swing type Hermetically sealed swing type Mo...

Page 45: ...fin coil Rows Stages FPI 2 44 19 2 44 19 Face area ft m2 9 5 0 88 9 5 0 88 Compressor Model 2YC63TXD A 2YC63TXD A Type Hermetically sealed swing type Hermetically sealed swing type Motor output kW 1 9...

Page 46: ...in coil Cross fin coil Rows Stages FPI 2 60 19 2 60 19 Face area ft m 12 2 1 134 12 2 1 134 Compressor Model 2YC90FXD A 2YC90FXD A Type Hermetically sealed swing type Hermetically sealed swing type Mo...

Page 47: ...fin coil Cross fin coil Rows Stages FPI 2 60 19 2 60 19 Face area ft m 12 2 1 134 12 2 1 134 Compressor Model 2YC90FXD A 2YC90FXD A Type Hermetically sealed swing type Hermetically sealed swing type...

Page 48: ...1 10 0 12 2 5 5 22 1 10 0 Outdoor unit RZQ18TAVJU RZQ24TAVJU Casing color Ivory white Ivory white Dimensions H W D in mm 39 37 12 5 8 990 940 320 39 37 12 5 8 990 940 320 Coil Type Cross fin coil Cro...

Page 49: ...Q36TAVJU Casing color Ivory white Ivory white Dimensions H W D in mm 52 15 16 35 7 16 12 5 8 1 345 900 320 52 15 16 35 7 16 12 5 8 1 345 900 320 Coil Type Cross fin coil Cross fin coil Rows Stages FPI...

Page 50: ...Q48TAVJU Casing color Ivory white Ivory white Dimensions H W D in mm 52 15 16 35 7 16 12 5 8 1 345 900 320 52 15 16 35 7 16 12 5 8 1 345 900 320 Coil Type Cross fin coil Cross fin coil Rows Stages FPI...

Page 51: ...it RZQ18TAVJUA RZQ24TAVJUA Casing color Ivory white Ivory white Dimensions H W D in mm 39 37 12 5 8 990 940 320 39 37 12 5 8 990 940 320 Coil Type Cross fin coil Cross fin coil Rows Stages FPI 2 44 19...

Page 52: ...ZQ36TAVJUA Casing color Ivory white Ivory white Dimensions H W D in mm 52 15 16 35 7 16 12 5 8 1 345 900 320 52 15 16 35 7 16 12 5 8 1 345 900 320 Coil Type Cross fin coil Cross fin coil Rows Stages F...

Page 53: ...ZQ48TAVJUA Casing color Ivory white Ivory white Dimensions H W D in mm 52 15 16 35 7 16 12 5 8 1 345 900 320 52 15 16 35 7 16 12 5 8 1 345 900 320 Coil Type Cross fin coil Cross fin coil Rows Stages F...

Page 54: ...ws Stages FPI 2 44 19 2 44 19 Face area ft m2 9 5 0 88 9 5 0 88 Compressor Model 2YC63ABXDD 2YC63ABXDD Type Hermetically sealed swing type Hermetically sealed swing type Motor output kW 1 9 1 9 Fan Mo...

Page 55: ...Stages FPI 2 60 19 2 60 19 Face area ft m2 12 2 1 134 12 2 1 134 Compressor Model 2YC90GXD D 2YC90GXD D Type Hermetically sealed swing type Hermetically sealed swing type Motor output kW 3 5 3 5 Fan...

Page 56: ...2 1 134 Compressor Model 2YC90GXD D Type Hermetically sealed swing type Motor output kW 3 5 Fan Model P47N Type Propeller fan Motor output W 70 2 Airflow rate cfm m3 min 3 741 106 Weight lbs kg 225 10...

Page 57: ...PI 2 44 19 2 44 19 Face area ft m2 9 5 0 88 9 5 0 88 Compressor Model 2YC63TXD A 2YC63TXD A Type Hermetically sealed swing type Hermetically sealed swing type Motor output kW 1 9 1 9 Fan Model P51J11F...

Page 58: ...ows Stages FPI 2 60 19 2 60 19 Face area ft m2 12 2 1 134 12 2 1 134 Compressor Model 2YC90FXD A 2YC90FXD A Type Hermetically sealed swing type Hermetically sealed swing type Motor output kW 3 5 3 5 F...

Page 59: ...2 2 1 134 Compressor Model 2YC90FXD A Type Hermetically sealed swing type Motor output kW 3 5 Fan Model P47N Type Propeller fan Motor output W 70 2 Airflow rate cfm m3 min 3 741 106 Weight lbs kg 225...

Page 60: ...es FPI 2 44 19 2 44 19 Face area ft m2 9 5 0 88 9 5 0 88 Compressor Model 2YC63ABXDD 2YC63ABXDD Type Hermetically sealed swing type Hermetically sealed swing type Motor output kW 1 9 1 9 Fan Model P51...

Page 61: ...4 19 2 44 19 Face area ft m2 9 5 0 88 9 5 0 88 Compressor Model 2YC63TXD A 2YC63TXD A Type Hermetically sealed swing type Hermetically sealed swing type Motor output kW 1 9 1 9 Fan Model P51J11F P51J1...

Page 62: ...or Model 2YC63ABXDD 2YC63ABXDD Type Hermetically sealed swing type Hermetically sealed swing type Motor output kW 1 9 1 9 Fan Model P51J11F P51J11F Type Propeller fan Propeller fan Motor output W 200...

Page 63: ...YC90GXD D 2YC90GXD D Type Hermetically sealed swing type Hermetically sealed swing type Motor output kW 3 5 3 5 Fan Model P47N P47N Type Propeller fan Propeller fan Motor output W 70 2 70 2 Airflow ra...

Page 64: ...l 2YC90GXD D 2YC90GXD D Type Hermetically sealed swing type Hermetically sealed swing type Motor output kW 3 5 3 5 Fan Model P47N P47N Type Propeller fan Propeller fan Motor output W 70 2 70 2 Airflow...

Page 65: ...TXD A Type Hermetically sealed swing type Hermetically sealed swing type Motor output kW 1 9 1 9 Fan Model P51J11F P51J11F Type Propeller fan Propeller fan Motor output W 200 200 Airflow rate cfm m3 m...

Page 66: ...l 2YC90FXD A 2YC90FXD A Type Hermetically sealed swing type Hermetically sealed swing type Motor output kW 3 5 3 5 Fan Model P47N P47N Type Propeller fan Propeller fan Motor output W 70 2 70 2 Airflow...

Page 67: ...odel 2YC90FXD A 2YC90FXD A Type Hermetically sealed swing type Hermetically sealed swing type Motor output kW 3 5 3 5 Fan Model P47N P47N Type Propeller fan Propeller fan Motor output W 70 2 70 2 Airf...

Page 68: ...5 0 88 9 5 0 88 Compressor Model 2YC63ABXDD 2YC63ABXDD Type Hermetically sealed swing type Hermetically sealed swing type Motor output kW 1 9 1 9 Fan Model P51J11F P51J11F Type Propeller fan Propelle...

Page 69: ...1 134 12 2 1 134 Compressor Model 2YC90GXD D 2YC90GXD D Type Hermetically sealed swing type Hermetically sealed swing type Motor output kW 3 5 3 5 Fan Model P47N P47N Type Propeller fan Propeller fan...

Page 70: ...1 134 12 2 1 134 Compressor Model 2YC90GXD D 2YC90GXD D Type Hermetically sealed swing type Hermetically sealed swing type Motor output kW 3 5 3 5 Fan Model P47N P47N Type Propeller fan Propeller fan...

Page 71: ...Compressor Model 2YC63TXD A 2YC63TXD A Type Hermetically sealed swing type Hermetically sealed swing type Motor output kW 1 9 1 9 Fan Model P51J11F P51J11F Type Propeller fan Propeller fan Motor outpu...

Page 72: ...2 1 134 12 2 1 134 Compressor Model 2YC90FXD A 2YC90FXD A Type Hermetically sealed swing type Hermetically sealed swing type Motor output kW 3 5 3 5 Fan Model P47N P47N Type Propeller fan Propeller fa...

Page 73: ...2 1 134 12 2 1 134 Compressor Model 2YC90FXD A 2YC90FXD A Type Hermetically sealed swing type Hermetically sealed swing type Motor output kW 3 5 3 5 Fan Model P47N P47N Type Propeller fan Propeller f...

Page 74: ...Q18 24TAVJU 69 1 2 RZR30 36 42 48TAVJU RZQ30 36 42 48TAVJU 71 1 3 Indoor Unit 73 2 Functional Parts Layout 74 2 1 RZR18 24TAVJU RZQ18 24TAVJU 74 2 2 RZR18 24TAVJUA RZQ18 24TAVJUA 76 2 3 RZR30 36 42 48...

Page 75: ...is caused by fire or others the fusible part of the plug is molten at a temperature of 70 to 75 C 158 to 167 F to release the pressure into the atmosphere 11 Pressure regulating valve Receiver to disc...

Page 76: ...cuit Piping Diagrams SiUS281811EA 70 Part 2 Refrigerant Circuit 2 16 1 15 S1NPH S1NPL S1PH 12 18 17 13 14 5 8 7 9 4 6 10 11 3 C 3D082498F The radiation fin thermistor 18 is located near the electrical...

Page 77: ...ature of 70 to 75 C 158 to 167 F to release the pressure into the atmosphere 10 Pressure regulating valve Receiver to discharge pipe This valve opens at a pressure of 4 0 MPa 580 psi for prevention of...

Page 78: ...g Diagrams SiUS281811EA 72 Part 2 Refrigerant Circuit 2 11 18 17 12 5 14 S1NPH S1NPL S1PH 3 9 10 4 16 15 7 Low pressure sensor 8 6 1 13 C 3D088595A The radiation fin thermistor 18 is located near the...

Page 79: ...R2T R2T Used for gas superheated degree control while in cooling or subcooled degree control while in heating 4 Gas pipe thermistor R3T R3T R3T Used for gas superheated degree control while in cooling...

Page 80: ...sensor S1NPL High pressure sensor S1NPH Thermistor Suction pipe 2 R5T R2T Four way valve coil Y1S Y2S R7T Y3S S1PH High pressure switch Y1E E1HC Crankcase heater Electronic expansion valve Main Thermi...

Page 81: ...iUS281811EA Functional Parts Layout Part 2 Refrigerant Circuit 75 Side view Thermistor Suction pipe 1 R3T Thermistor Outdoor air R1T Four way valve Y1S Thermistor Heat exchanger deicer R4T C 1P342997N...

Page 82: ...compressor R2T Four way valve coil Y1S Y2S R7T Y3S S1PH High pressure switch Y1E E1HC Crankcase heater Electronic expansion valve Main Thermistor Liquid pipe Thermistor Discharge pipe Solenoid valve...

Page 83: ...SiUS281811EA Functional Parts Layout Part 2 Refrigerant Circuit 77 Side view C 1P589934 Thermistor Suction pipe 1 R3T Thermistor Outdoor air R1T Four way valve Y1S Thermistor Heat exchanger deicer R4T...

Page 84: ...JU RZQ30 36 42 48TAVJU Front view Low pressure sensor S1NPL High pressure switch S1PH Crankcase heater E1HC Four way valve coil Y1S Thermistor Suction pipe 2 R5T Thermistor Discharge pipe R2T Inverter...

Page 85: ...ew Electronic expansion valve coil Main Y1E Electronic expansion valve coil Subcooling Y3E Thermistor Heat exchanger deicer R4T Thermistor Liquid pipe R7T Thermistor Outdoor air R1T Thermistor Suction...

Page 86: ...UA RZQ30 36 42 48TAVJUA Front view Low pressure sensor S1NPL High pressure switch S1PH Crankcase heater E1HC Four way valve coil Y1S Thermistor Suction pipe 2 R5T Thermistor Discharge pipe R2T Inverte...

Page 87: ...ew C 1P589937E Thermistor Suction pipe 1 R3T Thermistor Subcooling heat exchanger gas pipe R6T Thermistor Heat exchanger deicer R4T Thermistor Liquid pipe R7T Thermistor Outdoor air R1T Electronic exp...

Page 88: ...er 88 3 Main Sub Setting 90 3 1 Wired Remote Controller BRC1E73 90 3 2 When Wireless Remote Controller is Used Together 91 4 Address Setting for Wireless Remote Controller 92 5 Centralized Control Gro...

Page 89: ...ontroller Wireless remote controller Ceiling mounted cassette type round flow with sensing FCQ TA BRC1E73 BRC2A71 Ceiling suspended type FHQ P FHQ M BRC7E83 Wall mounted type FAQ TA BRC7E818 Ceiling m...

Page 90: ...sharp ends to press the buttons on the remote controller damage may result 1 Operation mode selector button Press this button to select the operation mode of your preference Available modes vary with...

Page 91: ...highlight the next items on the right hand side Each screen is scrolled in the right hand direction 7 Left button Used to highlight the next items on the left hand side Each screen is scrolled in the...

Page 92: ...on mode changeover Fan speed control Menu display Confirmation of each setting On Off Cancel Operation lamp Press the Cancel button for 4 seconds or more Press the Cancel button once Press the Cancel...

Page 93: ...rt Press the button again and the system will stop The lamp lights up during operation Blinks in case of stop due to malfunction This display shows the set temperature Only given during a cooling or h...

Page 94: ...Remote Controller Receiver FAQ FHQ FBQ separate type 19 21 20 22 23 18 20 21 23 18 22 19 8 10 13 11 12 15 14 16 17 9 1 3 4 6 2 5 7 DOWN FAN UP ON OFF M H L hr hr TEST MODE TIMER RESERVE CANCEL DOWN U...

Page 95: ...ROST LAMP Orange Lights up when the defrosting operation has started For cooling only type this lamp does not turn on 1 DISPLAY I SIGNAL TRANSMISSION This lights up when a signal is being transmitted...

Page 96: ...ng The Main Sub setting of the remote controller is displayed on the bottom of the screen while Checking the connection Please stand by is displayed How to change Main Sub setting You may change the M...

Page 97: ...om Main to Sub if one of the remote controllers is already set as Main 3 2 When Wireless Remote Controller is Used Together When using both a wired and a wireless remote controller for 1 indoor unit t...

Page 98: ...control using the group operation For the wiring for the group operation please refer to the installation manual attached to the indoor unit and technical guide Setting for Signal Receiver PCB The ad...

Page 99: ...SETTING is indicated on the display 2 Press FAN button and select A or b Each time the button is pressed the display switches between A and b 3 Press UP button or DOWN button to select an address from...

Page 100: ...te controller operation when the functions are restricted as by an external control Other than the left A Standard factory set All items displayed Accepts the functions except restricted Sounds one lo...

Page 101: ...menu is used to make group address setting for centralized control It is also used to make group address setting by indoor unit Select Group Address and then press the Menu OK button Press the Cancel...

Page 102: ...h the operation manual for maintenance Group Address Group Select Group Address and then press the Menu OK button Select Group Address Group and then press the Menu OK button Select the desired Group...

Page 103: ...ress INSPECTION TEST button for 4 seconds or more to enter field setting mode 2 Set mode No 00 with MODE button 3 Set the group No for each group with UP button or DOWN button 4 Enter the selected gro...

Page 104: ...Cancel button for 4 seconds or more Press and hold the Cancel button for 4 seconds or more Select the desired item from the Maintenance menu and then press the Menu OK button Maintenance menu is displ...

Page 105: ...Group Address Group Gr Addr Set Group Address Unit Unit No Gr Addr Set Indoor unit AirNet Address Unit No Address Set Outdoor unit AirNet Address Unit No Address Set Error History RC Error History Uni...

Page 106: ...d rpm FLAP Swing fixed EV Degree that electronic expansion valve is open pulse MP Drain pump ON OFF EH Electric heater ON OFF Hu Humidifier ON OFF 2 TBF Anti freezing control ON OFF FLOAT Float switch...

Page 107: ...or F Heat exchanger liquid pipe thermistor F Heat exchanger gas pipe thermistor F Indoor unit address No Outdoor unit address No Branch selector unit address No Zone control address No Cooling Heating...

Page 108: ...to enter service mode 3 Press MODE buttons to select a desired mode number 43 4 Carry out the necessary setting with UP button or DOWN button 5 Press RESERVE button to confirm the setting 6 Press INSP...

Page 109: ...4 Inverter Protection Control 121 5 Other Control 123 5 1 Demand Operation 123 5 2 Heating Operation Prohibition 123 6 Outline of Control Indoor Unit 124 6 1 Remote Controller Thermistor 124 6 2 Ther...

Page 110: ...unit thermostat ON NO YES Defrost control Indoor unit thermostat ON Error Standby Error Standby Operation in stop control Pressure equalization prior to startup Indoor unit stop or thermostat OFF Cool...

Page 111: ...rol Main electronic expansion valve Y1E Y1E 480 pulse Subcooling electronic expansion valve Y3E PI control Four way valve Y1S Y1S OFF Hot gas bypass valve Y2S OFF This valve turns ON with low pressure...

Page 112: ...rature suction air temperature is small the target condensation temperature is further decreased in order to adjust capacity From the outdoor unit side the temperature difference for all indoor units...

Page 113: ...3 24 25 26 27 28 29 30 48 52 5 57 61 5 67 5 75 81 90 100 5 105 111 114 118 5 129 141 153 163 5 174 181 5 192 201 211 5 222 228 243 253 5 265 5 277 5 289 5 301 5 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16...

Page 114: ...depending on the discharge pipe superheated degree of inverter compressor Subcooling Electronic Expansion Valve Control Carries out PI control of subcooling electronic expansion valve Y3E to keep the...

Page 115: ...e 18 C 64 4 F it will run in Step 5 or higher When outdoor temperature 12 C 53 6 F it will run in Step 1 or higher Upper limit of fan revolutions Step 8 Upper limit of outdoor fan revolutions Step 7 1...

Page 116: ...a Outdoor air temperature 3 1 1 Startup Control in Cooling Outdoor unit actuator Electric Symbol Pressure equalization control prior to startup Startup control 18 24 class 30 36 42 48 class STEP 1 STE...

Page 117: ...ds from minimum frequency until Pc Pe 0 39 MPa 56 6 psi is achieved Outdoor fan M1F M1F M2F From starting Ta 20 C 68 F STEP 1 Ta 20 C 68 F OFF STEP 8 STEP 8 Main electronic expansion valve Y1E Y1E 0 p...

Page 118: ...on starts every 8 hours of cumulative operation of the compressor even if the reference value is not met Outdoor unit actuator Electric Symbol Oil return preparation control Oil return control Control...

Page 119: ...control and B oil return control and between B oil return control and C control after oil return the compressor stops for 1 minute to reduce noise on changing of the four way valve Outdoor unit actua...

Page 120: ...ours even if the reference values are not met Between A defrost preparation control and B defrost control and between B defrost control and C control after defrost the compressor stops for 1 minute to...

Page 121: ...sidual control Step 1 Pump down residual control Step 2 18 24 class 30 36 42 48 class Compressor M1C M1C 124 Hz Minimum frequency Outdoor fan M1F M1F M2F Fan control Fan control Main electronic expans...

Page 122: ...essor M1C M1C OFF Outdoor fan M1F M1F M2F Ta 30 C 86 F STEP 4 Ta 30 C 86 F OFF Main electronic expansion valve Y1E Y1E 0 pulse Subcooling electronic expansion valve Y3E 0 pulse Four way valve Y1S Y1S...

Page 123: ...tion value Cooling operation Pc 3 47 MPa 503 psi After 10 sec Pc 3 47 MPa 503 psi Pc 3 23 MPa 468 psi Pc 3 64 MPa 528 psi Current step maintained After 15 sec High pressure not limited High pressure l...

Page 124: ...d High pressure limited Compressor upper limit frequency 1 step up from current compressor frequency Compressor upper limit frequency 1 step down from current compressor frequency When occurring 10 ti...

Page 125: ...step limited After 15 seconds Low pressure not limited Low pressure limited Compressor upper limit frequency 1 step up from current compressor frequency Pe Low pressure sensor detection value Compres...

Page 126: ...superheated degree HTdi 115 C 239 F Tp 135 C 275 F OR 36 Hz Unload HTdi 115 C 239 F Tp 135 C 275 F OR HTdi 135 C 275 F HTdi 120 C 248 F for 10 minutes or more OR HTdi 110 C 230 F Tp 125 C 257 F After...

Page 127: ...er limit frequency 1 step down from current compressor frequency Compressor upper limit frequency 1 step up from current compressor frequency Inverter current standby Inverter current 22 A continues f...

Page 128: ...r limit requirement Compressor upper limit Maximum frequency 10 seconds Matching frequency Limited 15 seconds No DC power limit requirement continuously for 3 minutes Inverter upper limit frequency 1...

Page 129: ...1 To enable this operation the additional setting of Constant Demand Setting is required Other protection control functions have precedence over the above operation 5 2 Heating Operation Prohibition...

Page 130: ...is installed Cooling If there is a significant difference in the set temperature and the suction temperature fine adjustment control is carried out using a suction air thermistor 1 or using the remote...

Page 131: ...ts are does not become cold by widening the range in which remote controller thermistor can be used so that suction temperature is higher than the set temperature Assuming the set temperature in the f...

Page 132: ...6 1 F FTQ TA only If the field setting 14 24 5 is set to 02 Tro will be the same as the cooling set temperature 1 The thermistor for room temperature detection depends on the field setting 10 20 2 2 D...

Page 133: ...ate outside of use range To avoid the above condition a limit based on the suction air temperature is set for the use range of the temperature around people Cooling operation When the floor temperatur...

Page 134: ...mode Control temp Differential value set to 1qC 1 8qF Set heating temp Set cooling temp Heating mode Control temp Differential value set to 2qC 3 6qF Heating mode Control temp Differential value set t...

Page 135: ...izontal Hot start from thermostat OFF mode for prevention of cold air Swing LL Horizontal Horizontal Horizontal Airflow direction set LL Horizontal Horizontal Horizontal Stop Swing OFF Horizontal Hori...

Page 136: ...OFF before initiating the hot start OFF Hot start control Hot start in progress Normal control Normal control H L remote controller setting LL OFF Remote controller setting P0 Horizontal Fan Louver E...

Page 137: ...eing soiled The factory setting position is draft prevention position P0 P1 P2 P4 P3 P0 P1 P2 P4 P3 P0 P0 P1 P2 P4 P4 P2 P1 P0 P4 P4 P3 P2 P1 P0 P3 Existing position Draft prevention position Not for...

Page 138: ...ously After the thermostat turns OFF the drain pump continues to operate for another 5 minutes Float switch Error display Thermostat running OFF OFF ON ON ON OFF Drain pump ON OFF 5 min OFF OFF ON ON...

Page 139: ...F the drain pump turns ON simultaneously OFF OFF ON ON ON OFF ON OFF 5 min 5 sec Float switch Error display Thermostat running Drain pump A3 OFF OFF ON ON ON OFF ON OFF 5 min 5 min 5 min 5 min 5 min 5...

Page 140: ...reset Conditions for starting Liquid pipe temperature 1 C 30 2 F for total of 40 minutes or Liquid pipe temperature 5 C 23 F for total of 10 minutes Condition for cancelling Liquid pipe temperature 7...

Page 141: ...15 minutes or Liquid pipe temperature 0 C 32 F for 1 minute continuously During freeze up prevention operation the airflow rate is fixed to LL The cancelling conditions are same as the standard 0 C 32...

Page 142: ...s conducted by converting the heater temperature into the condensing pressure equivalent saturated temperature Tc according to the temperature detection through the high pressure sensor S1NPH of the o...

Page 143: ...A models heater ON OFF output from wiring adaptor interlocks with the operation of heater kit HKS When the heater 1 turns ON OFF heater output of wiring adaptor turns ON OFF Fan residual operation als...

Page 144: ...OFF Heater 1 OFF Heater 2 OFF Thermostat OFF Thermostat ON Thermostat ON Condition C Condition B Condition B Thermostat OFF H P Heating In operation Heater 1 OFF Heater 2 OFF Fan ON H P Heating In ope...

Page 145: ...st oil return 1 4 OR Not during defrost oil return Fan motor system error Heater ON permission Defrost oil return 0 4 1 High pressure condition 2 Liquid pipe temperature condition 3 Auxiliary heater e...

Page 146: ...operation Heater 1 ON Heater 2 ON OFF for single heater Fan ON Electric heater capacity setting Setting not available Thermostat step 2 ON Time up Electric heater capacity setting Setting available N...

Page 147: ...hermostat step 2 OFF Thermostat step 3 OFF Other conditions Perform the processing in the following chart 5 g n i t a e H 2 g n i l o o C 1 Thermostat step 2 Thermostat step 1 ON OFF ON OFF 2 S 1 4 S...

Page 148: ...Residual ON Fan 1 ENTRY 90 sec timer starts 1 When the heater is ON the airflow rate of the fan will be whichever is the largest between the CFM dictated by the heater s own capacity or the fan tap CF...

Page 149: ...the economizer Cooling mode When the thermostat is ON Cooling mode When the thermostat is ON External output ON 2 OR Tcon Ts continues for 1 minute Economizer set time 3 Free cooling only Economizer s...

Page 150: ...Mode 177 2 6 Setting of Low Noise Operation and Demand Operation 179 2 7 Setting of Refrigerant Recovery Mode 182 2 8 Setting of Vacuuming Mode 182 2 9 Check Operation 183 2 10 Setting of Auxiliary He...

Page 151: ...case of setting per indoor unit during group control When Mode No such as 20 21 22 23 25 are selected highlight the unit No and select Indoor unit No to be set by using Up Down button In the case of...

Page 152: ...the indoor unit 6 Press Menu OK button Setting confirmation screen is displayed 7 Select Yes and press Menu OK button Setting details are determined and field settings screen returns 8 In the case of...

Page 153: ...emperature setting 4 During group control when setting by each indoor unit mode No 20 22 and 23 have been selected press the BS8 4 button unit No and select the indoor unit No to be set This operation...

Page 154: ...CTION TEST button for 4 seconds during normal mode to enter the field setting mode 2 Press the MODE button to select the desired mode No 3 Press the UP button to select the first code No 4 Press the D...

Page 155: ...isplayed 155 6 Remote controller thermistor control during group control Not permitted Permitted 153 7 6 Time for absence area detection 30 minutes 60 minutes 155 11 21 1 8 Auxiliary electric heater O...

Page 156: ...6 External static pressure settings Refer to the page on the right for details 163 14 24 4 8 Optional kit setting UV lamp humidifier economizer Refer to the page on the right for details 164 5 8 Resi...

Page 157: ...ot equipped with 4 88 or Checking the connection Please stand by may be displayed to indicate the remote controller is resetting when returning to the normal mode 5 If the setting mode set to Equipped...

Page 158: ...floor temperature when heating 12 22 0 Optional accessories output selection 1 External ON OFF input 2 Thermostat differential changeover 3 Airflow setting when heating thermostat is OFF 4 Automatic...

Page 159: ...to 02 room temperature is controlled by the suction air thermistor When the Second code No is set to 03 room temperature is controlled by the remote controller thermistor When the Second Code No is s...

Page 160: ...rmistor Suction air thermistor Suction air thermistor Remote controller thermistor Remote controller thermistor Set temperature C 14 16 18 20 22 24 26 28 30 32 C 57 2 60 8 64 4 68 71 6 75 2 78 8 82 4...

Page 161: ...period of time Absent time defined for detection can be selected as follows Factory setting The set temperature displayed on the remote controller remains the same even if the target temperature is sh...

Page 162: ...eating operation Set temperature Toff S 1 Ton S 1 Thermostat OFF Thermostat ON FCQ TA Factory setting Mode No FirstCode No Symbol Second Code No 01 02 03 04 05 06 11 21 1 Ton 4 C 7 2 F 3 5 C 6 3 F 3 C...

Page 163: ...ory setting FTQ TA Factory setting Mode No First Code No Second Code No Contents Heater operation Electric heater run for defrost oil return operation 11 21 3 01 Electric heater with heat pump not all...

Page 164: ...to fan enter the field setting mode while operation is stopped and then select the Mode No 11 21 set the First Code No to 7 and the Second Code No to 03 4 After setting return to the basic screen to...

Page 165: ...be disabled by selecting Suction air temperature only the Second code No 01 Factory setting 1 5 12 Compensating the Floor Temperature when Heating For units with an infrared floor sensor Offset the de...

Page 166: ...o First Code No SecondCode No Contents 12 22 0 01 Indoor unit thermostat ON OFF signal is provided 02 03 Output linked with ON OFF of remote controller is provided 04 In case of Error Display appears...

Page 167: ...ure will automatically restart operation after power failure or after the main power supply is restored Due to the aforementioned when the Auto restart after power failure setting is ON be careful for...

Page 168: ...ard Lower than 2 7 m 8 3 4 ft Lower than 3 1 m 10 1 8 ft Lower than 3 0 m 10 ft Lower than 3 5 m 11 1 2 ft 02 High Ceiling 1 Lower than 3 0 m 10 ft Lower than 3 4 m 11 1 8 ft Lower than 3 3 m 10 3 4 f...

Page 169: ...the Second Code No to 02 or 03 1 5 24 External Static Pressure Settings Make external static pressure setting automatically using automatic airflow adjustment or manually using external static pressu...

Page 170: ...t is OFF Factory setting FTQ TA Factory setting Mode No First Code No Second Code No Contents UV lamp humidifier fan speed Economizer setting for Mech standby duration minutes 14 24 4 01 Refer to cont...

Page 171: ...on Setting This is set to perform individual operation of energy recovery ventilator using the remote controller central unit when heat reclaim ventilation is built in Switch only when heat reclaim ve...

Page 172: ...on Level Setting For BRC1E series only There are 2 levels as follows Level 2 The following buttons are selectable to be disable or enable Level 3 No buttons are selectable and only On Off button is av...

Page 173: ...kit fresh air intake kit separately installed natural evaporation type humidifier or branch air duct is equipped due to the possibility of dew condensation This setting restricts the airflow block fu...

Page 174: ...by remote controller can be set and displayed by operation modes 0 through 19 ON OFF control impossible by remote controller Used when you want to turn ON OFF by centralized remote controller only Ca...

Page 175: ...sure to carry out capacity setting after changing the main PCB A1P to spare PCB for RZR30 36 42 48TAVJU and RZQ30 36 42 48TAVJU only Attach the capacity setting adaptor corresponding to capacity clas...

Page 176: ...P blinks Used to check the program made in setting mode 2 H1P H3P H5P H7P H2P H4P H6P BS1 MODE BS2 SET BS4 TEST BS5 RESET BS3 RETURN Contents display Monitor mode Press the RETURN BS3 button Press the...

Page 177: ...rmal Abnormal In check operation 2 Setting conditions of COOL HEAT selection Individual Batch master Batch slave 3 Low noise operating conditions In normal operation In low noise operation 4 Demand op...

Page 178: ...H5P Low noise H6P Demand H7P h h k h h h h Setting displaying item MODE H1P TEST H2P COOL HEAT select IND H3P MASTER H4P SLAVE H5P LOW NOISE H6P DEMAND H7P For selection by individual outdoor unit fac...

Page 179: ...of DC compressor Since the waveform of inverter is output without wiring to the compressor it is convenient to probe whether the trouble comes from the compressor or PCB 29 Capacity precedence setting...

Page 180: ...k k 6 C 42 8 F k h h h h k h 3 C 37 4 F k h h h h h k 9 Tc setting k h h k h h k Target Tc 52 C 125 6 F k h h h k h h 46 C 114 8 F k h h h h k h Variable VRT k h h h h h k 10 Defrost changeover setti...

Page 181: ...h h h h h k About 7 00 AM k h h h h k h About 8 00 AM factory setting k h h h k h h 28 Power transistor check mode k h k k k h h OFF k h h h h h k ON k h h h h k h 29 Capacity precedence setting k h...

Page 182: ...h h h 7 2 C 45 F k h h k h h k 10 C 50 F k h h k h k h 12 7 C 55 F k h h k h k k 15 5 C 60 F k h h k k h h 18 3 C 65 F k h h k k h k Auxiliary heater always not allowed k h h k k k h Auxiliary heater...

Page 183: ...gits lower 14 Error description the latest l h h k k k h Refer to the error code table on Part 6 15 Error description 1 cycle before l h h k k k k 16 Error description 2 cycle before l h k h h h h 20...

Page 184: ...010110 binary number which translates to 16 4 2 22 base 10 number In other words the address is 22 The number of terminal blocks for No 12 and 13 is expressed as an 8 digit binary number which is the...

Page 185: ...ndition i e 06 00 AM 07 00 AM or 08 00 AM for set item No 27 Setting of end time of night time low noise operation Use the end time as a guide since it is estimated according to outdoor temperatures 4...

Page 186: ...ting of Demand 1 level and then set the setting condition to targeted mode The power consumption set with Demand 1 level setting When the Constant demand setting is set to ON OFF has been set at facto...

Page 187: ...ow noise setting OFF Factory setting Level 1 l Level 2 l Level 3 l l 26 Night time low noise operation start setting 8 00 PM l 10 00 PM Factory setting l 12 00 AM l 27 Night time low noise operation e...

Page 188: ...ration and Under Centralized Control are displayed on the remote controller and the indoor outdoor unit operation is prohibited After setting do not cancel setting mode 2 until completion of refrigera...

Page 189: ...egree of electronic expansion valve Unit stopping Press the TEST button for 5 seconds 10 seconds to 10 minutes LED display H1P H7P k ON h OFF l BLINK h h k h h h h h l h h h h k Pressure equalizing St...

Page 190: ...P TEST H2P C H selection Low noise H6P Demand H7P IND H3P Master H4P Slave H5P Factory setting 50 Auxiliary heater maximum allowable temperature k k k h h k h 17 7 C 0 F k h h h h h h 15 C 5 F k h h h...

Page 191: ...h h k k Mode 4 k h h h k h h Mode 5 k h h h k h k Mode 6 k h h h k k h Type Description Actions Field setting Shorted between Heating Thermo on Heating Thermo off Heater Fan Heater Fan I Heat pump he...

Page 192: ...o outdoor units No Setting item display Setting condition display Setting item MODE H1P TEST H2P C H selection Low noise H6P Demand H7P IND H3P Master H4P Slave H5P Factory setting 57 Heat pump lockou...

Page 193: ...ltage circuits Are the setscrews of wiring not loose Is the electrical component box covered with an insulation cover completely Is refrigerant charged up to the specified amount If insufficient charg...

Page 194: ...unit PCB A2P For positions of the button switches BS1 5 and changeover switches DS1 1 2 on the PCB refer to the Service Precautions label Check the state of the outdoor units and fault wiring with th...

Page 195: ...Failure to do so will result in compressor damage For setting method see the Service Precautions label attached to the front panel of the outdoor unit Be sure to keep a record of the setting items to...

Page 196: ...and the timer lamps on all indoor units go out The indoor unit has the option rights to change between cooling heating operation For details refer to the installation manual included with the indoor...

Page 197: ...p valve Check the amount of refrigerant and recharge the unit H9 01 Defective outdoor air thermistor R1T Check the connection of the PCB or the actuator J3 16 Defective discharge pipe thermistor R2T T...

Page 198: ...are any other defective indoor units and verify if the indoor unit combination meets requirements 18 Defective indoor unit connection or mismatched models R 410A R 407C RA Hydrobox etc Check if there...

Page 199: ...addition cannot be recognized In this case the unit cannot be run for up to 12 minutes to automatically set the address indoor outdoor address etc Status Outdoor unit Test lamp H2P Blinks Can also be...

Page 200: ...9 4 8 Indoor Fan Motor M1F Lock Overload 221 4 9 Indoor Fan Motor Abnormality 223 4 10 Blower Motor Not Running 227 4 11 Indoor Fan Motor Status Abnormality 228 4 12 Low Indoor Airflow 229 4 13 Swing...

Page 201: ...t Executed 279 4 50 Transmission Error between Indoor Units and Outdoor Units 280 4 51 Transmission Error between Remote Controller and Indoor Unit 282 4 52 Transmission Error between Main and Sub Rem...

Page 202: ...SiUS281811EA 196 Part 6 Service Diagnosis 5 15 Fan Motor Connector Check for FTQ TA 311...

Page 203: ...e Touch the paint free metal part of the product electrical box lid of the standard model tap bolts of electrical box of anti corrosion and heavy anti corrosion models to release static electricity be...

Page 204: ...azing Properly perform airtightness test and vacuum drying Airtight test pressure 4 0 MPa 580 psi Charge refrigerant in liquid state 5 Precautions for operating in servicing mode field setting When a...

Page 205: ...0 5 6 21 2 0 66 95 7 24 75 2 1 61 234 54 129 2 3 36 487 34 29 2 0 23 33 4 4 24 8 0 70 102 26 78 8 1 70 247 56 132 8 3 51 509 32 25 6 0 25 36 3 2 28 4 0 75 109 28 82 4 1 79 260 58 136 4 3 64 528 30 22...

Page 206: ...s operation but makes an immediate stop Blocked air inlet or outlet of indoor or outdoor unit Remove obstacle s Clogged air filter s Clean the air filter s 3 The system does not cool or heat air well...

Page 207: ...d The remote controller displays CENTRAL CONTROL This remote controller has no option to select cooling operation Use a remote controller with option to select cooling operation The remote controller...

Page 208: ...e startup or stop of defrost operation These sounds are produced when the gas refrigerant stops or changes flowing Normal operation Indoor unit Faint sounds are continuously produced while in cooling...

Page 209: ...not display the eco friendly display function No defect Set the clock 6 During cooling and dry operation the louver automatically switches from horizontal P0 to one level downward P1 No defect When re...

Page 210: ...on set to automatic Is the wire harness broken YES YES NO NO NO NO NO Replace the step motor Motor failure YES Replace the wire harness YES Is the connection of the step motor connector normal Is the...

Page 211: ...is an error or warning 2 Taking corrective action Screen Operation lamp Operation Status Display Abnormal shutdown The system stops operating The operation lamp green starts to blink The message Erro...

Page 212: ...he operation in step 4 until you hear a continuous beep This continuous beep indicates that the error code is confirmed Continuous beep There is no abnormality 3 Press MODE button The left 0 upper dig...

Page 213: ...ly returns to the normal mode 0 1 2 3 4 5 6 7 8 9 A H C J E F UP button DOWN button If no button is pressed for 1 minute equipment returns to normal mode 3 Press MODE button The upper digit blinks Nor...

Page 214: ...supply voltage abnormality 232 Blower motor stops for over under voltage FTQ TA only 233 A9 l Electronic expansion valve coil abnormality Dust clogging 234 AF k Drain level above limit 236 AJ l Defect...

Page 215: ...mpressor abnormality 267 L4 l Radiation fin temperature rise abnormality 268 L5 l Inverter compressor instantaneous overcurrent 269 L8 l Inverter compressor overcurrent 270 L9 l Inverter compressor st...

Page 216: ...panel PCB and the connectors X18A and X19A on the sensor PCB AH 05 Dust collection sign error when the self cleaning decoration panel is mounted Check for clogging with dust at the dust collection por...

Page 217: ...r the indoor unit is different from that used for the outdoor unit UA 15 Not applicable for self cleaning decoration panel when the self cleaning decoration panel is mounted An outdoor unit is not app...

Page 218: ...T l a m r o n b A e r u t a r e p m e t e p i p e g r a h c s i d l a m r o n b A Abnormal heat exchanger temperature Refrigerant overcharge F6 Defective thermistor of outdoor air temperature Defecti...

Page 219: ...l h h l h h l h k l h h l l k h h h h h l k k h h 1 J3 l l h h l l h l h k h h l l l k h h h h h l k k h h 1 J5 l h k h l h l l k h h h h h l k k h h l k k h l J6 l h k h l l h l k h h h h h l k k h...

Page 220: ...capacitor high voltage Imbalance of inverter power supply voltage P1 Defective temperature sensor of inverter radiation fin Defective thermistor of inverter fin P4 Refrigerant shortage Refrigerant sh...

Page 221: ...l h h U2 l h k h h l h l k h h h h h l k k h h h h k k h l h h l k k h h l h l k k h h h l U3 l h k h h l l l k h h h h h l k k h h l l U4 l h k h l h h l k h h h h h l k k h h l l l k k h l l l U9 l...

Page 222: ...es Activation of external protection device Improper field setting Defective indoor unit PCB Troubleshooting Activation of external protection device External protection device is connected to termina...

Page 223: ...nit PCB Indoor unit fuse blown 24 VAC power is not supplied to TH2 and TR2 terminals on the indoor unit PCB Troubleshooting Fuse F1U is blown 24 VAC power is supplied to TH2 and TR2 terminals External...

Page 224: ...nonvolatile memory Maintains memory contents even when the power supply is turned OFF Supposed Causes Defective indoor unit PCB External factor Noise etc Troubleshooting YES Caution Be sure to turn of...

Page 225: ...CQ TA FBQ P Method of Error Detection By float switch OFF detection Error Decision Conditions When the float switch goes OFF when conditions for rise of water level are not met Supposed Causes Defecti...

Page 226: ...nected YES YES YES Error is displayed again YES YES YES NO Set to emergency and check the voltage of the connector 2 to which the drain pump is connected Short circuit connector connection Replace the...

Page 227: ...Conditions When the fan revolutions do not increase Supposed Causes Broken wires in short circuit of or disconnection of connectors from the fan motor harness Defective fan motor Broken wires or defe...

Page 228: ...reign matter YES YES NO Are there any foreign matter around the fan YES NO Is the resistance between the pins less than the judgment criteria Replace the indoor unit main PCB A1P CHECK 16 Disconnect t...

Page 229: ...to the fan Supposed Causes Defective indoor fan motor Broken wires Defective contact Troubleshooting CHECK 16 Refer to page 306 YES NO NO YES Check the indoor fan motor and the wiring circuits of the...

Page 230: ...on signal of the fan motor Error from the current flow on the fan PCB when the fan motor starting operation Error Decision Conditions An overcurrent flows The rotation speed is less than a certain lev...

Page 231: ...a foreign matter around the fan Connect the connector properly Replace the indoor fan motor Replace the indoor fan motor Connect the connector properly Caution Be sure to turn off the power switch be...

Page 232: ...check the resistance The resistance among U V and W are unbalanced or short circuited YES NO YES NO Replace the fan PCB A2P The HAP lamp of the indoor unit PCB A1P blinks and the HAP lamp of the fan P...

Page 233: ...eed at 5 second intervals using the feedback of the fan motor Performs rotation sampling 720 times takes approx one hour and if the rotation speed falls below 50 rpm over 100 times it is deemed abnorm...

Page 234: ...e information shows Motor Lost Control or Current Trip status it will be deemed a MOTOR TRIP abnormal operation The system stops operating Error Reset Conditions If the indoor unit stops receiving abn...

Page 235: ...during this the rotation command is stopped the 5 second interval check is halted but the counted number will be kept When the rotation command is restarted the checks will resume Error Reset Conditi...

Page 236: ...en the motor turns Error Decision Conditions When ON OFF of the micro switch for positioning cannot be reversed even though the swing flap motor is energized for a specified amount of time about 30 se...

Page 237: ...he power supply OFF once and back ON and check whether the swing flap motor swings when the power supply is turned back ON Turn the power supply OFF once and restart and measure the output voltage of...

Page 238: ...ive wiring Instantaneous power failure others Troubleshooting YES There are problems on the condition of power supply described above Caution Be sure to turn off the power switch before connecting or...

Page 239: ...ror Decision Conditions If the information shows Over Under Voltage status it will be deemed a MOTOR VOLTS abnormal operation Error Reset Conditions If the information is normal the error will be clea...

Page 240: ...valve main body is checked for dust clogging via microcomputer Error Decision Conditions Pin input for electronic expansion valve coil is abnormal when initializing microcomputer Either of the followi...

Page 241: ...starting the operation after shutting the power supply OFF does not work replace the indoor unit main PCB A1P NO Replace the electronic expansion valve main body Power is supplied YES YES Electronic e...

Page 242: ...at switch Defective indoor unit PCB Defective connector connection Defective drain pump Troubleshooting NO YES NO NO YES Check the drain pump piping Check the drain water discharge system Check if dra...

Page 243: ...not saved to the PCB and the capacity setting adaptor is not connected A capacity that does not exist for that unit is set Supposed Causes Defective capacity setting adaptor connection Defective indo...

Page 244: ...ain PCB A1P Defective fan PCB A2P External factor such as instantaneous power failure Troubleshooting NO Is the connector between indoor unit PCB A1P and fan PCB A2P accurately connected 1 Caution Be...

Page 245: ...and remove the connector X70A of indoor unit main PCB A1P 2 Short circuit X70A 3 After turning ON the power check below numbers under field setting from remote controller Confirmation Second code No a...

Page 246: ...rmal message and determined as such by the indoor unit the indoor unit will execute a retry If everything fails for 5 seconds it is deemed to be a transmission abnormality Error Reset Conditions If th...

Page 247: ...r 2 Refer to page 245 for C9 for FTQ TA models CHECK 11 Refer to page 301 Caution Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged Remove the...

Page 248: ...setting adaptor Defective setting error Troubleshooting Replace it with correct fan PCB A2P Install the correct capacity setting adaptor Was the correct capacity setting adaptor installed when replac...

Page 249: ...rmation on the manufacturer ID and output of the fan motor when initializing the fan motor If those figures are not the values recognized by the indoor unit it will be deemed abnormal operation If dee...

Page 250: ...e included among the periodic control status information Error is issued when the information shows abnormality Error Decision Conditions If the parameter information shows abnormality it will be deem...

Page 251: ...r unit PCB Troubleshooting 1 Connector and indoor unit PCB CHECK 11 Refer to page 301 Is the optional remote sensor is installed Field setting 10 20 2 is set to 03 Connector is connected to the indoor...

Page 252: ...nsor connector CE 01 Defective infrared floor sensor Temperature compensation circuit disconnection CE 02 Defective infrared floor sensor Temperature compensation short circuit CE 03 Defective infrare...

Page 253: ...utput refer to sensor and address data No 22 25 Connect the connector correctly Connect the connector correctly NO YES YES Is the connection of the connector on infrared presence sensor PCB A4P and th...

Page 254: ...r output refer to sensor and address data No 26 Connect the connector correctly Connect the connector correctly NO YES YES Is the connection of the connector on infrared floor sensor PCB A3P and the c...

Page 255: ...t Check infrared floor sensor output refer to sensor and address data No 26 Is the connection of the connector on infrared floor sensor PCB A3P and the connector X2A on A2P normal Is the connection of...

Page 256: ...t Check infrared floor sensor output refer to sensor and address data No 26 Is the connection of the connector on infrared floor sensor PCB A3P and the connector X2A on A2P normal Is the connection of...

Page 257: ...ller PCB External factor Noise etc Troubleshooting YES YES Is CJ displayed on the remote controller Is the field setting 10 20 2 correct YES Is a remote controller with group control being used YES Is...

Page 258: ...re section between the indoor unit and the outdoor unit are not normal Supposed Causes Defective outdoor main PCB A1P Disconnection of the inside outside relay wires Troubleshooting Caution Be sure to...

Page 259: ...cuit to test high pressure switch conduction Error Decision Conditions Part of the protection device has an open circuit Error is generated when the high pressure switch activation count reaches the n...

Page 260: ...ntinuity Compare the voltage measurement of the connector of the pressure sensor 1 with the measurement of the pressure gauge Are the characteristics of the high pressure sensor normal CHECK 12 Are bo...

Page 261: ...ue with the low pressure sensor Use the outdoor main PCB to determine the low pressure sensor pressure test value Error Decision Conditions Error is generated when the low pressure drops below a speci...

Page 262: ...en The low pressure sensor is normal and outdoor unit main PCB is also normal The low pressure has really become low Replace the outdoor unit main PCB A1P Replace the low pressure sensor S1NPL Open th...

Page 263: ...e 0 5 MPa 72 5 psi and above Incorrect UVW wiring Defective PCB Stop valve is not opened Troubleshooting Caution Be sure to turn off the power switch before connecting or disconnecting connectors or p...

Page 264: ...Defective pressure equalization Check the refrigerant system YES Power ON Power OFF Power OFF Power ON Power OFF Power ON NO NO Replace the outdoor main PCB A1P NO Continue the operation Instantaneou...

Page 265: ...g the fan motor operation Error Decision Conditions In the condition of fan motor rotation the number of rotation is below the fixed number for more than 6 seconds System down is caused by 4 times of...

Page 266: ...supply voltage 10 Does the fan motor connector disconnect Are there any obstacles around the fan Is pin to pin resistance greater than the threshold value Is fuse F6U blown Is fuse F6U blown Do the fa...

Page 267: ...main PCB Disconnection of connectors for electronic expansion valve Troubleshooting CHECK 18 Refer to page 308 YES Caution Be sure to turn off the power switch before connecting or disconnecting conn...

Page 268: ...tor R2T Disconnection of discharge pipe thermistor R2T Defective outdoor unit PCB Troubleshooting CHECK 11 Refer to page 301 Be sure to turn off the power switch before connecting or disconnecting con...

Page 269: ...splayed Supposed Causes Refrigerant overcharge Disconnection of outdoor air thermistor heat exchanger deicer thermistor liquid pipe thermistor Defective outdoor air thermistor heat exchanger deicer th...

Page 270: ...ch before connecting or disconnecting connectors or parts may be damaged Connector is connected to outdoor unit PCB Replace the outdoor main PCB A1P Connect the connector and turn on again NO NO Repla...

Page 271: ...urn off the power switch before connecting or disconnecting connectors or parts may be damaged Replace the outdoor main PCB A1P Replace the high pressure sensor S1NPH YES NO Replace the outdoor main P...

Page 272: ...ff the power switch before connecting or disconnecting connectors or parts may be damaged Are the characteristics of the low pressure sensor normal Make a comparison between the voltage characteristic...

Page 273: ...he unit Error Decision Conditions Overcurrent OCP flows during waveform output Error of current sensor during synchronous operation IPM failure Supposed Causes IPM failure Current sensor failure Drive...

Page 274: ...rmistor Troubleshooting Defective radiation from the power unit Blocked air suction port Stained radiation fin High outdoor air temperature Connect correctly Go to P4 troubleshooting Keep operating Re...

Page 275: ...Defective PCB Troubleshooting CHECK 4 Refer to page 295 Replace the outdoor main PCB A1P YES YES NO NO YES NO NO Check if the power transistor is normal Failure occurs again after restarting the unit...

Page 276: ...ing CHECK 4 Refer to page 295 NO YES YES NO Check if the compressor lead wires are normal Insulation resistance of the compressor is 100 k or below YES NO NO Caution Be sure to turn off the power swit...

Page 277: ...ing or disconnecting connectors or parts may be damaged NO NO NO YES YES YES Does L9 blink after reconnecting to the power When operation starts is the high and low pressure difference greater than 0...

Page 278: ...ctive noise filter External factors Noise etc Defective inverter compressor Defective fan motor Troubleshooting Caution Be sure to turn off the power switch before connecting or disconnecting connecto...

Page 279: ...the power supply with a missing phase Supposed Causes Defective main circuit capacitor Incorrect main circuit wiring Defective outdoor unit PCB Unbalanced voltage between phases Missing phase Troubles...

Page 280: ...es Defective radiation fin temperature thermistor Defective PCB Defective inverter compressor Defective fan motor Troubleshooting CHECK 11 Refer to page 301 Caution Be sure to turn off the power switc...

Page 281: ...d on the discharge pipe thermistor temperature and the low pressure saturated temperature Error Decision Conditions Microcomputer is used to determine and check for system refrigerant shortage The uni...

Page 282: ...and the outdoor heat exchanger greater than 20 C 68 F Is the resistance measured from suction pipe thermistor disconnected from the outdoor unit PCB normal Is the voltage between X18A pins 2 and 3 of...

Page 283: ...s Method of Error Detection The main circuit capacitor voltage of the inverter and the power supply voltage is checked Error Decision Conditions The main circuit capacitor of the tested inverter has a...

Page 284: ...nsistor Is the power transistor failing Is the resistance greater than the standard Measure voltage between and of the electrolytic capacitor C C when the compressor is operating Calibrate the power v...

Page 285: ...ecision Conditions Error is decided when the unit starts operation without check operation Supposed Causes Check operation not executed Troubleshooting Replace the outdoor main PCB A1P Press TEST BS4...

Page 286: ...ress does not match Defective indoor unit PCB Defective outdoor main PCB Troubleshooting Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged Caut...

Page 287: ...e indoor outdoor unit transmission wiring Press and hold the RESET BS5 button on the outdoor unit PCB for 5 seconds Replace the outdoor main PCB A1P YES NO NO Replace the outdoor main PCB A1P YES Oper...

Page 288: ...noise Troubleshooting Refer to page 90 for Main Sub setting Control by 2 remote controllers Main Sub setting of both remote controllers is set to Main All indoor unit PCB microcomputer normal monitor...

Page 289: ...r between main and sub remote controller Connection between sub remote controllers Defective remote controller PCB Troubleshooting Refer to page 90 for Main Sub setting Caution Be sure to turn off the...

Page 290: ...em Defective electronic expansion valve in indoor unit of other system Defective PCB of indoor unit in other system Improper connection of transmission wiring between indoor and outdoor unit Troublesh...

Page 291: ...e occurs in data by the type of refrigerant between indoor and outdoor units The number of indoor units is out of the allowable range Error Decision Conditions The error decision is made as soon as ei...

Page 292: ...NO Is the outdoor unit PCB replaced by the backup PCB Is the refrigerant type of the indoor unit and outdoor unit matched Is the total number of indoor units displaying UA and indoor units connectable...

Page 293: ...on applicable value Operation After Error Codes Decided The error code UA 17 is displayed on the remote controller Indoor units can operate continuously Incorrect setting is kept Even if the ON condit...

Page 294: ...ision is made as soon as the abnormality aforementioned is detected Supposed Causes Address duplication of centralized controller Defective indoor unit PCB Troubleshooting Caution Be sure to turn off...

Page 295: ...ized controller Defective indoor unit PCB Troubleshooting CHECK 15 Refer to page 305 Has an indoor unit once connected been removed or its address changed Is transmission wiring disconnected or wired...

Page 296: ...or units Failure to execute check operation Defective indoor unit PCB Stop valve is not opened Troubleshooting Caution Is indoor outdoor unit transmission wiring normal Is indoor outdoor unit transmis...

Page 297: ...nit PCB Defective outdoor unit main PCB A1P Troubleshooting 1 Refer to installation manual for correct indoor unit and outdoor unit connection wiring Caution Be sure to turn off the power switch befor...

Page 298: ...ondenser Mixingofnon condensablegas Decreased airflow rate Decreased fan output Defective fan motor Defective main PCB Including capacity setting High airflow passage resistance Dirty filter Obstacle...

Page 299: ...properly made Is the air filter clogged Is there any obstacle in the airflow passage Defective main PCB Including capacity setting High airflow passage resistance Dirty filter Obstacle Defective elec...

Page 300: ...mal Is the connector properly connected Are the thermistor resistance characteristics normal Are the voltage characteristics normal Is the pressure value checked with the Service Checker corresponding...

Page 301: ...de Preparation Multimeter Preparing a multimeter in the analog system is recommended A multimeter in the digital system with diode check function will be usable No Point of Measurement Judgment Criter...

Page 302: ...ssure Frequency High pressure gradually rises with increase in frequency Subcooling degree becomes higher Liquid connection pipe temperature lowers Low pressure rises due to decreased compressor outpu...

Page 303: ...level Fan control is activated for high pressure protection under cooling control at low outdoor air temperature i e the fan is hunting at high pressure High pressure drops with decrease in compresso...

Page 304: ...kPa 14 6 psi or less for a period of one hour or more and then check to be sure that the vacuum gauge reading does not rise If the reading rises moisture may have remained in the system or refrigeran...

Page 305: ...mpressor L1 Defective PCB for inverter compressor No output is given Defective heavy current part of compressor L4 Radiation fin temperature rise The radiation fin temperature reaches 87 C 188 F or mo...

Page 306: ...seconds Defective startup of inverter compressor Compressor stops running immediately after it starts up Defective radiation inverter When transmissions between the microcomputers on the main PCB are...

Page 307: ...pe C Type A Type J FHQ P Type B FHQ M FAQ TA FBQ P Type J FTQ TA Type A Model Thermistor Type RZR18 24TAVJU RZQ18 24TAVJU R1T Outdoor air E R2T Discharge pipe G R3T Suction pipe 1 A R4T Heat exchanger...

Page 308: ...5 59 31 44 31 4796 31 51 31 5417 20 68 24 95 25 0060 25 02 25 0554 25 77 19 94 20 0000 20 00 20 0395 30 86 16 04 16 1008 16 10 16 1326 35 95 12 99 13 0426 13 04 13 0683 40 104 10 58 10 6281 10 63 10 6...

Page 309: ...40 104 10 30 118 7 10 7042 10 31 45 113 8 439 96 13 8 7834 8 447 50 122 6 954 78 29 7 2479 6 962 55 131 5 761 64 10 6 0131 5 769 60 140 4 797 52 76 5 0144 4 805 65 149 4 014 43 63 4 2021 4 021 70 158...

Page 310: ...0 0 5 0 0 5 0 5 0 0 5 1 1 5 2 2 5 3 3 5 4 VDC kg cm2 psi MPa PH PL PH MPa VH 0 5 PL MPa VL 0 5 PH High pressure MPa PL Low pressure MPa VH Output Voltage High Side VDC VL Output Voltage Low Side VDC 4...

Page 311: ...d transmission wirings the indoor outdoor unit transmission wiring has no broken wires in it If there is no continuity the transmission wiring may have broken wires With the indoor outdoor unit termin...

Page 312: ...nce measuring points and judgment criteria FHQ P FHQ M Resistance measuring points and judgment criteria 1 White 2 Orange 3 Brown 4 Blue 5 6 7 Red FG Vsp Vcc GND Vdc X20A Measuring points Judgment cri...

Page 313: ...nd W and W and U phases of the motor connector with five conductors and check that each phase are balanced within a permissible dispersion range of 20 2 Measurement of signal wire connector Remove the...

Page 314: ...esistance and make sure that the resistance value is within the range listed in the table below FCQ TA FTQ TA FBQ P FAQ TA Orange 1 Red 2 Yellow 3 Black 4 5 Gray 6 Measuring points Judgment criteria 1...

Page 315: ...FHQ M RZR18 24TAVJU RZQ18 24TAVJU 3 Orange White 1 Yellow 2 Red 5 6 Brown 4 Blue Measuring points Judgment criteria 1 3 300 1 5 150 2 4 300 2 6 150 White 1 Yellow 2 Orange 3 Blue 4 5 Red 6 X21A Y1E Me...

Page 316: ...k SiUS281811EA 310 Part 6 Service Diagnosis RZR30 36 42 48TAVJU RZQ30 36 42 48TAVJU Orange 1 Red 2 Yellow 3 Black 4 5 COM Gray 6 X21A Y1E X22A Y3E Measuring points Judgment criteria 1 6 35 55 2 6 3 6...

Page 317: ...unting bracket is tightly secured to the housing Ensure bracket is not cracked or broken Emerson UltraCheck EZTM Diagnostic Tool The Emerson UltraCheck EZTM diagnostic tool may be used to diagnose the...

Page 318: ...voltage between pins 4 and 3 Voltage should be approximately half of the voltage measured in step 4 6 Measure voltage between pins 5 and 3 Voltage should be approximately half of the voltage measured...

Page 319: ...to air handler or modular blower NOTE Motor contains capacitors that can hold a charge for several minutes after disconnecting power Wait 5 minutes after removing power to allow capacitors to discharg...

Page 320: ...al injury or death 1 Disconnect power to air handler or modular blower NOTE Motor contains capacitors that can hold a charge for several minutes after disconnecting power Wait 5 minutes after removing...

Page 321: ...SiUS281811EA 315 Part 7 Appendix 1 Wiring Diagrams 316 1 1 Outdoor Unit 316 1 2 Indoor Unit 320 Part 7 Appendix...

Page 322: ...Wiring Diagrams SiUS281811EA 316 Part 7 Appendix 1 Wiring Diagrams 1 1 Outdoor Unit RZR18 24TAVJU RZQ18 24TAVJU 3D115455...

Page 323: ...SiUS281811EA Wiring Diagrams Part 7 Appendix 317 RZR18 24TAVJUA RZQ18 24TAVJUA 3D124495...

Page 324: ...Wiring Diagrams SiUS281811EA 318 Part 7 Appendix RZR30 36 42 48TAVJU RZQ30 36 42 48TAVJU 3D115456...

Page 325: ...SiUS281811EA Wiring Diagrams Part 7 Appendix 319 RZR30 36 42 48TAVJUA RZQ30 36 42 48TAVJUA 3D124500...

Page 326: ...Wiring Diagrams SiUS281811EA 320 Part 7 Appendix 1 2 Indoor Unit FCQ18 24 30 36 42 48TAVJU 3D115647A...

Page 327: ...SiUS281811EA Wiring Diagrams Part 7 Appendix 321 FHQ18 24 30PVJU FHQ36 42MVJU 3D048116C...

Page 328: ...Wiring Diagrams SiUS281811EA 322 Part 7 Appendix FAQ18 24TAVJU 3D114844B...

Page 329: ...SiUS281811EA Wiring Diagrams Part 7 Appendix 323 FBQ18 24 30 36 42 48PVJU 3D065984J...

Page 330: ...TAGE HIGH VOLTAGE FIELD JUNCTION TERMINAL PLUG CONNECTION EQUIPMENT GND FIELD GROUND X1A X3A X38A BS1 X12A X13A HAP X8A INDOOR UNIT PCB THERMISTOR HEAT EXCHANGER 1 2 MPU MULTI TENANT OPTION EEV COIL M...

Page 331: ...local legislation z Ask a qualified installer or contractor to install this product Do not try to install the product yourself Improper installation can result in water or refrigerant leakage electri...

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