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Daikin VRV EMERION REYQ-AATJA, Service Manual


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SiUS372201EB

Wiring Diagrams

Part 7 Appendix

508

FXLQ07/09/12/18/24MVJU*, FXNQ07/09/12/18/24MVJU*

POWER SUPPLY

GRN/YLW

R3T

R2T

R1T

X1M

L1

L2

t°

t°

t°

RED

WHT

A1P

L2

L1

X8A

X11A

X13A

X12A

F1U

HAP

X18A

X3A

NOTE-7

X30A

NOTES)

T1R

PNK

T2

T2

WHT

T1

T1

t°

YLW

X1A

F2

F2

ORG

F1

F1

BLU

K3R

K1R

K2R

P2

P2

BLK

P1

P1

FLL

FL

FH

X7A

FC

T1R

X4A

X2M

X18A

C1

WHT

ORG

BLK

RED

BRN

A1P

YLW

WHT

P2
P1

WHT

M

WHT

RED

YLW

BRN

BLK

ORG

Y1E

X2M

X1M

1

Q1M

CONTROL BOX

M1F

1

~ 

208/230V 

60Hz

NOTE-4

INPUT FROM OUTSIDE

NOTE-3

TRANSMISSION WIRING 

WIRED REMOTE CONTROLLER 

(OPTIONAL ACCESSORY)

M  ~

1.             : TERMINAL BLOCK,         ,        : CONNECTOR,        TERMINAL

2.             : FIELD WIRING,          SHORT CIRCUIT CONNECTOR

3. IN CASE USING CENTRAL REMOTE CONTROLLER, CONNECT IT TO 

THE UNIT IN ACCORDANCE WITH THE ATTACHED INSTALLATION MANUAL.

4. WHEN CONNECTING THE INPUT WIRES FROM OUTSIDE, FORCED OFF OR ON/OFF 

CONTROL OPERATION CAN BE SELECTED BY REMOTE CONTROLLER. IN DETAILS, 

REFER TO THE INSTALLATION MANUAL ATTACHED TO THE UNIT.

5. SYMBOLS SHOW AS FOLLOWS. (PNK: PINK WHT: WHITE YLW: YELLOW 

ORG: ORANGE BLU: BLUE BLK: BLACK RED: RED BRN: BROWN GRN: GREEN)

6. USE COPPER CONDUCTORS ONLY.

7. CLASS 2 WIRE.

INDOOR UNIT

A1P

C1

F1U

HAP

K1R-K3R

M1F

Q1M

R1T

R2T·R3T

T1R

X1M

PRINTED CIRCUIT BOARD

CAPACITOR (M1F)

FUSE (

B , 5A, 250V)

LIGHT EMITTING DIODE 

(SERVICE MONITOR-GREEN)

MAGNETIC RELAY (M1F)

MOTOR (INDOOR FAN)

THERMO. SWITCH 

(M1F EMBEDDED)

THERMISTOR (AIR)

THERMISTOR (COIL)

TRANSFORMER (208-230V/25V)

TERMINAL BLOCK (POWER)

X2M

Y1E

X18A

TERMINAL BLOCK (CONTROL)

ELECTRONIC EXPANSION VALVE

CONNECTOR FOR OPTIONAL PARTS

CONNECTOR (WIRING ADAPTOR FOR 

ELECTRICAL APPENDICES)

3D045644C

Summary of Contents for VRV EMERION REYQ-AATJA

Page 1: ...Service Manual Heat Recovery 60 Hz REYQ AATJA B 208 230 V REYQ AAYDA B 460 V SiUS372201EB...

Page 2: ...tment Equipment 16 3 Combination of Outdoor Units 17 4 Capacity Range 18 4 1 Connection Ratio 18 4 2 Outdoor Unit Combinations 19 4 3 Limitation of Capacity Index for Heat Recovery 20 5 Specifications...

Page 3: ...141 7 1 BRC1H71W 141 Part 4 Functions and Control 142 1 Operation Flowchart 144 2 Stop Control 145 2 1 Stop due to Error 145 2 2 When System is in Stop Control 145 2 3 Sub Unit Stops during Master Uni...

Page 4: ...9 13 Gas Furnace Control CXTQ TA Models 200 9 14 3 Step Thermostat Processing FXTQ TA FXTQ TB Models 201 9 15 Fan Control Heater Residual FXTQ TA FXTQ TB Models 202 9 16 Interlocked with External Equ...

Page 5: ...3 Prediction Codes 309 3 4 External Protection Device Abnormality 313 3 5 Indoor Unit Control PCB Abnormality 315 3 6 Drain Level Control System Abnormality 316 3 7 Indoor Fan Motor Lock Overload 318...

Page 6: ...8 3 49 Thermistor Abnormality 390 3 50 Harness Abnormality between Outdoor Unit Main PCB and Inverter PCB 391 3 51 Outdoor Fan PCB Abnormality 392 3 52 High Pressure Sensor Abnormality 393 3 53 Low Pr...

Page 7: ...mate Talk Communication System Combination Error After Initial Setting for Communication Completes 448 4 Check 449 4 1 High Pressure Check 449 4 2 Low Pressure Check 450 4 3 Superheat Operation Check...

Page 8: ...S372201EB 1 Introduction 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 9: ...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 10: ...t The use of materials for other refrigerant models may cause a serious accident such as damage to the refrigerant cycle or equipment failure Do not mix air or gas other than the specified refrigerant...

Page 11: ...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 12: ...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 13: ...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 14: ...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 15: ...sed contents 03 2022 SiUS372201E First edition 12 2022 SiUS372201EA Addition of error codes and prediction codes Model addition FXSQ05 54TBVJU FXMQ15 54TBVJU 11 2023 SiUS372201EB Model addition REYQ72...

Page 16: ...nce 12 2 1 Outdoor Unit 12 2 2 Branch Selector Unit 14 2 3 Indoor Unit 14 2 4 Air Treatment Equipment 16 3 Combination of Outdoor Units 17 4 Capacity Range 18 4 1 Connection Ratio 18 4 2 Outdoor Unit...

Page 17: ...ard Capacity index 288 312 336 360 384 408 432 456 480 Heat recovery REYQ 288AA 312AA 336AA 360AA 384AA 408AA 432AA 456AA 480AA TJA TJB REYQ AAYDA REYQ AAYDB 460 V Capacity range ton 6 8 10 12 14 16 1...

Page 18: ...Q 05TA 07TA 09TA 12TA 15TA 18TA 24TA 30TA 36TA 48TA 54TA 05TB 07TB 09TB 12TB 15TB 18TB 24TB 30TB 36TB 48TB 54TB Ceiling mounted duct type Middle and high static pressure FXMQ 07PB 09PB 12PB 15PB 18PB...

Page 19: ...JB REYQ192AAYDB REYQ216AAYDB REYQ240AAYDB REYQ96AATJA REYQ120AATJA REYQ144AATJA REYQ168AATJA REYQ96AAYDA REYQ120AAYDA REYQ144AAYDA REYQ168AAYDA 6 ton 8 10 12 14 ton 16 18 20 ton REYQ72AATJA REYQ72AAYD...

Page 20: ...YDA REYQ480AAYDA REYQ264AATJA REYQ288AATJA REYQ312AATJA REYQ336AATJA REYQ264AAYDA REYQ288AAYDA REYQ312AAYDA REYQ336AAYDA REYQ264AATJB REYQ288AATJB REYQ312AATJB REYQ336AATJB 22 24 26 28 ton 30 ton 32 3...

Page 21: ...es BS Q54T BS Q54TA Multi Branch Selector Unit Flex Series BSF Q54T Ceiling mounted cassette Round flow with sensing type FXFQ AA Shown with BYCQ54EEFU VISTATM 2 2 cassette type FXZQ TA FXZQ TB Ceilin...

Page 22: ...ounted type FXAQ P MSP concealed ducted type FXSQ TA FXSQ TB Floor standing type FXLQ M Ceiling mounted duct type Middle and high static pressure FXMQ PB Concealed floor standing type FXNQ M Ceiling m...

Page 23: ...SiUS372201EB External Appearance Part 1 General Information 16 2 4 Air Treatment Equipment Outdoor air processing unit FXMQ MF Energy recovery ventilator VAM series VAM G...

Page 24: ...68AA 14 17 5 1 h REYQ192AA 16 20 0 1 h REYQ216AA 18 22 5 1 h REYQ240AA 20 25 0 1 h REYQ264AA 22 27 5 2 h h REYQ288AA 24 30 0 2 hh REYQ312AA 26 32 5 2 h h REYQ336AA 28 35 0 2 hh REYQ360AA 30 37 5 2 h h...

Page 25: ...ton 50 200 1 180 1 200 1 100 100 2 16 20 ton 180 1 180 1 Double outdoor units 160 1 160 1 Notes 1 2 3 If the operational capacity of indoor units is more than 130 low airflow operation is enforced in...

Page 26: ...264AA 288AA 312AA 336AA 360AA 384AA Max number of connectable indoor units 41 45 49 54 58 62 64 Total capacity index of indoor units to be connected 1 120 312 432 132 343 422 144 374 461 156 405 499 1...

Page 27: ...ts per branch 5 5 5 Number of branches 4 6 8 Maximum capacity index of connectable indoor units per branch 1 54 or less 54 or less 54 or less Series configuration Maximum capacity index of connectable...

Page 28: ...9 5 C1220T brazing connection Suction gas pipe in mm 3 4 19 1 C1220T brazing connection 7 8 22 2 C1220T brazing connection High Low pressure gas pipe in mm 5 8 15 9 C1220T brazing connection 3 4 19 1...

Page 29: ...0T brazing connection Suction gas pipe in mm 1 1 8 28 6 C1220T brazing connection 1 1 8 28 6 C1220T brazing connection High Low pressure gas pipe in mm 3 4 19 1 C1220T brazing connection 7 8 22 2 C122...

Page 30: ...T brazing connection Suction gas pipe in mm 1 1 8 28 6 C1220T brazing connection 1 1 8 28 6 C1220T brazing connection High Low pressure gas pipe in mm 7 8 22 2 C1220T brazing connection 1 1 8 28 6 C12...

Page 31: ...brazing connection Suction gas pipe in mm 1 1 8 28 6 C1220T brazing connection 1 3 8 34 9 C1220T brazing connection High Low pressure gas pipe in mm 1 1 8 28 6 C1220T brazing connection 1 1 8 28 6 C1...

Page 32: ...Drive Direct drive Direct drive Connecting pipes Liquid pipe in mm 3 4 19 1 C1220T brazing connection 3 4 19 1 C1220T brazing connection Suction gas pipe in mm 1 3 8 34 9 C1220T brazing connection 1...

Page 33: ...ive Direct drive Direct drive Connecting pipes Liquid pipe in mm 3 4 19 1 C1220T brazing connection 3 4 19 1 C1220T brazing connection Suction gas pipe in mm 1 3 8 34 9 C1220T brazing connection 1 3 8...

Page 34: ...e Direct drive Direct drive Connecting pipes Liquid pipe in mm 3 4 19 1 C1220T brazing connection 3 4 19 1 C1220T brazing connection Suction gas pipe in mm 1 5 8 41 3 C1220T brazing connection 1 5 8 4...

Page 35: ...rive Direct drive Direct drive Connecting pipes Liquid pipe in mm 3 4 19 1 C1220T brazing connection 3 4 19 1 C1220T brazing connection Suction gas pipe in mm 1 5 8 41 3 C1220T brazing connection 1 5...

Page 36: ...ve Direct drive Direct drive Connecting pipes Liquid pipe in mm 3 4 19 1 C1220T brazing connection 3 4 19 1 C1220T brazing connection Suction gas pipe in mm 1 5 8 41 3 C1220T brazing connection 1 5 8...

Page 37: ...onnection Suction gas pipe in mm 3 4 19 1 C1220T brazing connection 7 8 22 2 C1220T brazing connection High Low pressure gas pipe in mm 5 8 15 9 C1220T brazing connection 3 4 19 1 C1220T brazing conne...

Page 38: ...20T brazing connection Suction gas pipe in mm 1 1 8 28 6 C1220T brazing connection 1 1 8 28 6 C1220T brazing connection High Low pressure gas pipe in mm 3 4 19 1 C1220T brazing connection 7 8 22 2 C12...

Page 39: ...0T brazing connection Suction gas pipe in mm 1 1 8 28 6 C1220T brazing connection 1 1 8 28 6 C1220T brazing connection High Low pressure gas pipe in mm 7 8 22 2 C1220T brazing connection 1 1 8 28 6 C1...

Page 40: ...T brazing connection Suction gas pipe in mm 1 1 8 28 6 C1220T brazing connection 1 3 8 34 9 C1220T brazing connection High Low pressure gas pipe in mm 1 1 8 28 6 C1220T brazing connection 1 1 8 28 6 C...

Page 41: ...4 Drive Direct drive Direct drive Connecting pipes Liquid pipe in mm 3 4 19 1 C1220T brazing connection 3 4 19 1 C1220T brazing connection Suction gas pipe in mm 1 3 8 34 9 C1220T brazing connection 1...

Page 42: ...rive Direct drive Direct drive Connecting pipes Liquid pipe in mm 3 4 19 1 C1220T brazing connection 3 4 19 1 C1220T brazing connection Suction gas pipe in mm 1 3 8 34 9 C1220T brazing connection 1 3...

Page 43: ...ve Direct drive Direct drive Connecting pipes Liquid pipe in mm 3 4 19 1 C1220T brazing connection 3 4 19 1 C1220T brazing connection Suction gas pipe in mm 1 5 8 41 3 C1220T brazing connection 1 5 8...

Page 44: ...Drive Direct drive Direct drive Connecting pipes Liquid pipe in mm 3 4 19 1 C1220T brazing connection 3 4 19 1 C1220T brazing connection Suction gas pipe in mm 1 5 8 41 3 C1220T brazing connection 1 5...

Page 45: ...ive Direct drive Direct drive Connecting pipes Liquid pipe in mm 3 4 19 1 C1220T brazing connection 3 4 19 1 C1220T brazing connection Suction gas pipe in mm 1 5 8 41 3 C1220T brazing connection 1 5 8...

Page 46: ...razing connection Suction gas pipe in mm 3 4 19 1 C1220T brazing connection 7 8 22 2 C1220T brazing connection High Low pressure gas pipe in mm 5 8 15 9 C1220T brazing connection 3 4 19 1 C1220T brazi...

Page 47: ...razing connection Suction gas pipe in mm 1 1 8 28 6 C1220T brazing connection 1 1 8 28 6 C1220T brazing connection High Low pressure gas pipe in mm 3 4 19 1 C1220T brazing connection 7 8 22 2 C1220T b...

Page 48: ...azing connection Suction gas pipe in mm 1 1 8 28 6 C1220T brazing connection 1 1 8 28 6 C1220T brazing connection High Low pressure gas pipe in mm 7 8 22 2 C1220T brazing connection 1 1 8 28 6 C1220T...

Page 49: ...zing connection Suction gas pipe in mm 1 1 8 28 6 C1220T brazing connection 1 3 8 34 9 C1220T brazing connection High Low pressure gas pipe in mm 1 1 8 28 6 C1220T brazing connection 1 1 8 28 6 C1220T...

Page 50: ...ve Direct drive Direct drive Connecting pipes Liquid pipe in mm 3 4 19 1 C1220T brazing connection 3 4 19 1 C1220T brazing connection Suction gas pipe in mm 1 3 8 34 9 C1220T brazing connection 1 3 8...

Page 51: ...Direct drive Direct drive Connecting pipes Liquid pipe in mm 3 4 19 1 C1220T brazing connection 3 4 19 1 C1220T brazing connection Suction gas pipe in mm 1 3 8 34 9 C1220T brazing connection 1 3 8 34...

Page 52: ...rect drive Direct drive Connecting pipes Liquid pipe in mm 3 4 19 1 C1220T brazing connection 3 4 19 1 C1220T brazing connection Suction gas pipe in mm 1 5 8 41 3 C1220T brazing connection 1 5 8 41 3...

Page 53: ...Direct drive Direct drive Connecting pipes Liquid pipe in mm 3 4 19 1 C1220T brazing connection 3 4 19 1 C1220T brazing connection Suction gas pipe in mm 1 5 8 41 3 C1220T brazing connection 1 5 8 41...

Page 54: ...irect drive Direct drive Connecting pipes Liquid pipe in mm 3 4 19 1 C1220T brazing connection 3 4 19 1 C1220T brazing connection Suction gas pipe in mm 1 5 8 41 3 C1220T brazing connection 1 5 8 41 3...

Page 55: ...ction Suction gas pipe in mm 3 4 19 1 C1220T brazing connection 7 8 22 2 C1220T brazing connection High Low pressure gas pipe in mm 5 8 15 9 C1220T brazing connection 3 4 19 1 C1220T brazing connectio...

Page 56: ...brazing connection Suction gas pipe in mm 1 1 8 28 6 C1220T brazing connection 1 1 8 28 6 C1220T brazing connection High Low pressure gas pipe in mm 3 4 19 1 C1220T brazing connection 7 8 22 2 C1220T...

Page 57: ...razing connection Suction gas pipe in mm 1 1 8 28 6 C1220T brazing connection 1 1 8 28 6 C1220T brazing connection High Low pressure gas pipe in mm 7 8 22 2 C1220T brazing connection 1 1 8 28 6 C1220T...

Page 58: ...azing connection Suction gas pipe in mm 1 1 8 28 6 C1220T brazing connection 1 3 8 34 9 C1220T brazing connection High Low pressure gas pipe in mm 1 1 8 28 6 C1220T brazing connection 1 1 8 28 6 C1220...

Page 59: ...ive Direct drive Direct drive Connecting pipes Liquid pipe in mm 3 4 19 1 C1220T brazing connection 3 4 19 1 C1220T brazing connection Suction gas pipe in mm 1 3 8 34 9 C1220T brazing connection 1 3 8...

Page 60: ...Direct drive Direct drive Connecting pipes Liquid pipe in mm 3 4 19 1 C1220T brazing connection 3 4 19 1 C1220T brazing connection Suction gas pipe in mm 1 3 8 34 9 C1220T brazing connection 1 3 8 34...

Page 61: ...irect drive Direct drive Connecting pipes Liquid pipe in mm 3 4 19 1 C1220T brazing connection 3 4 19 1 C1220T brazing connection Suction gas pipe in mm 1 5 8 41 3 C1220T brazing connection 1 5 8 41 3...

Page 62: ...e Direct drive Direct drive Connecting pipes Liquid pipe in mm 3 4 19 1 C1220T brazing connection 3 4 19 1 C1220T brazing connection Suction gas pipe in mm 1 5 8 41 3 C1220T brazing connection 1 5 8 4...

Page 63: ...Direct drive Direct drive Connecting pipes Liquid pipe in mm 3 4 19 1 C1220T brazing connection 3 4 19 1 C1220T brazing connection Suction gas pipe in mm 1 5 8 41 3 C1220T brazing connection 1 5 8 41...

Page 64: ...tor Unit 67 1 3 Indoor Unit 79 1 4 Outdoor Air Processing Unit 82 2 Functional Parts Layout 83 2 1 REYQ72AA 83 2 2 REYQ96 120AA 85 2 3 REYQ144 168AA 88 2 4 REYQ192 216 240AA 91 3 Refrigerant Flow for...

Page 65: ...pressor 13 Y5S Solenoid valve Refrigerant adjustment Not used 14 Y7S Four way valve Heat exchanger right lower Used to switch outdoor heat exchanger to evaporator or condenser 15 Y8S Four way valve HP...

Page 66: ...to detect liquid pipe temperature of receiver inlet 34 R11T Thermistor Subcooling heat exchanger liquid pipe This detects temperature of liquid pipe for subcooling heat exchanger 35 R12T Thermistor Su...

Page 67: ...DV SLSH 6XFWLRQ JDV SLSH RXU ZD YDOYH 6 RXU ZD YDOYH 6 5 7 5 7 RXU ZD YDOYH 6 OHFWURQLF H SDQVLRQ YDOYH 3ODWH KHDW H FKDQJHU KHFN YDOYH XVLEOH SOXJ RXEOH WXEH KHDW H FKDQJHU DSLOODU WXEH LOWHU LOWHU L...

Page 68: ...ompressor 16 Y5S Solenoid valve Refrigerant adjustment Not used 17 Y7S Four way valve Heat exchanger right lower Used to switch outdoor heat exchanger to evaporator or condenser 18 Y8S Four way valve...

Page 69: ...s temperature of liquid pipe for subcooling heat exchanger 40 R12T Thermistor Subcooling heat exchanger gas pipe This detects temperature of gas pipe for subcooling heat exchanger 41 R15T Thermistor M...

Page 70: ...KHDW H FKDQJHU DSLOODU WXEH LOWHU LOWHU LOWHU LOWHU 69 6ROHQRLG YDOYH 6 DSLOODU WXEH OHFWURQLF H SDQVLRQ YDOYH 5 7 KHFN YDOYH KHFN YDOYH 3UHVVXUH UHJXODWLQJ YDOYH 69 6ROHQRLG YDOYH 6 5 7 LOWHU LTXLG S...

Page 71: ...4S Solenoid valve Accumulator oil return Used to return oil from the accumulator to the compressor 17 Y5S Solenoid valve Refrigerant adjustment Not used 18 Y6S Solenoid valve Injection Used to control...

Page 72: ...for subcooling heat exchanger 44 R14T Thermistor Subcooling injection 45 R15T Thermistor M1C discharge pipe Used to detect discharge pipe temperature 46 R16T Thermistor M1C body Detects compressor su...

Page 73: ...HU LOWHU 69 6ROHQRLG YDOYH 6 DSLOODU WXEH OHFWURQLF H SDQVLRQ YDOYH 5 7 KHFN YDOYH KHFN YDOYH 3UHVVXUH UHJXODWLQJ YDOYH 6ROHQRLG YDOYH 6 5 7 LOWHU LTXLG SLSH KHFN YDOYH KHFN YDOYH XVLEOH SOXJ 5HFHLYHU...

Page 74: ...n indoor unit downstream of this Branch Selector unit is in heating Max 480 pulse 2 Electronic expansion valve EVH Y2E Opens while in heating or all indoor units are in cooling Max 6 000 pulse 3 Elect...

Page 75: ...TAVJ C 4D133271 3 3 JDV SLSH FRQQHFWLRQ SRUW LOWHU OHFWURQLF SDQVLRQ 9DOYH 9 LOWHU OHFWURQLF SDQVLRQ 9DOYH 96 LOWHU LTXLG SLSH FRQQHFWLRQ SRUW 6XFWLRQ JDV SLSH FRQQHFWLRQ SRUW LOWHU RXEOH SLSH KHDW H...

Page 76: ...lve Suction Gas pipe connection port Liquid pipe connection port Gas pipe connection port Liquid pipe connection port Gas pipe connection port Liquid pipe connection port Gas pipe connection port Liqu...

Page 77: ...F unit Liquid pipe connection port Suction gas pipe connection port HP LP gas pipe connection port Gas pipe connection port Liquid pipe connection port Gas pipe connection port Liquid pipe connection...

Page 78: ...ction port Liquid pipe connection port Gas pipe connection port Liquid pipe connection port Gas pipe connection port Liquid pipe connection port Gas pipe connection port Liquid pipe connection port Ga...

Page 79: ...tion Electronic Expansion Valve HP LP gas Electronic Expansion Valve Suction Electronic Expansion Valve HP LP gas Electronic Expansion Valve Suction Electronic Expansion Valve HP LP gas Electronic Exp...

Page 80: ...RQ 9DOYH 6XFWLRQ RXEOH SLSH KHDW H FKDQJHU 8QLW LTXLG SLSH FRQQHFWLRQ SRUW 8QLW OHFWURQLF SDQVLRQ 9DOYH 6XE FRRO 8QLW LOWHU 3 3 JDV SLSH FRQQHFWLRQ SRUW DV SLSH FRQQHFWLRQ SRUW OHFWURQLF SDQVLRQ 9DOYH...

Page 81: ...connectionport Liquidpipe connectionport Gaspipe connectionport Liquidpipe connectionport Gaspipe connectionport Liquidpipe connectionport Gaspipe connectionport Liquidpipe connectionport Gaspipe con...

Page 82: ...LTXLG SLSH FRQQHFWLRQ SRUW OHFWURQLF SDQVLRQ 9DOYH 6XFWLRQ OHFWURQLF SDQVLRQ 9DOYH 6XFWLRQ LOWHU 8QLW RXEOH SLSH KHDW H FKDQJHU OHFWURQLF SDQVLRQ 9DOYH 6XE FRRO LOWHU LOWHU OHFWURQLF SDQVLRQ 9DOYH 3 3...

Page 83: ...Q JDV SLSH FRQQHFWLRQ SRUW XQLW RXEOH SLSH KHDW H FKDQJHU LOWHU LTXLG SLSH FRQQHFWLRQ SRUW DV SLSH FRQQHFWLRQ SRUW LOWHU XQLW RXEOH SLSH KHDW H FKDQJHU LOWHU LTXLG SLSH FRQQHFWLRQ SRUW DV SLSH FRQQHFW...

Page 84: ...SH FRQQHFWLRQ SRUW LOWHU LOWHU LOWHU LOWHU LOWHU OHFWURQLF SDQVLRQ 9DOYH 6XE FRRO XQLW RXEOH SLSH KHDW H FKDQJHU LOWHU LTXLG SLSH FRQQHFWLRQ SRUW DV SLSH FRQQHFWLRQ SRUW LOWHU XQLW RXEOH SLSH KHDW H F...

Page 85: ...H FKDQJHU LOWHU LTXLG SLSH FRQQHFWLRQ SRUW DV SLSH FRQQHFWLRQ SRUW LOWHU XQLW RXEOH SLSH KHDW H FKDQJHU LOWHU LTXLG SLSH FRQQHFWLRQ SRUW DV SLSH FRQQHFWLRQ SRUW LOWHU XQLW RXEOH SLSH KHDW H FKDQJHU LO...

Page 86: ...Used for thermostat control 3 Liquid pipe thermistor R2T R2T R2T Used for gas superheating degree control while in cooling or subcooling degree control while in heating 4 Gas pipe thermistor R3T R3T...

Page 87: ...46 4 2 1 3 LOWHU HDW H FKDQJHU LTXLG SLSH FRQQHFWLRQ SRUW LOWHU DQ OHFWURQLF H SDQVLRQ YDOYH 0 DV SLSH FRQQHFWLRQ SRUW LOWHU HDW H FKDQJHU LTXLG SLSH FRQQHFWLRQ SRUW LOWHU DQ OHFWURQLF H SDQVLRQ YDOYH...

Page 88: ...nt Circuit Piping Diagrams SiUS372201EB 81 Part 2 Refrigerant Circuit FXTQ TA FXTQ TB CXTQ TA C 4D068194 4 1 3 Indoor heat exchanger Filter Filter 4 1 3 Gas piping connection port Liquid piping connec...

Page 89: ...y tube Used to reduce pressure from high to low in bypassing hot gas 4 R1T Suction air thermistor Used to turn ON or OFF the thermostat 5 R2T Liquid pipe thermistor Used to control the opening degree...

Page 90: ...gas pipe Y8S S1NPH High pressure sensor S1PH High pressure switch M1C R18T Thermistor M1C body R17T R4T Thermistor Receiver gas purge Y5S Solenoid valve Refrigerant adjustment Y4E Electronic expansio...

Page 91: ...nt cooling bypass Y6E Electronic expansion valve Refrigerant cooling IPM Y7E Electronic expansion valve Refrigerant cooling air Electronic expansion valve Heat exchanger right upper Y1E R2T Thermistor...

Page 92: ...rankcase heater R4T Thermistor Receiver gas purge R15T R16T Y5S Solenoid valve Refrigerant adjustment Y4E Electronic expansion valve Receiver gas purge Thermistor M1C body M2C Compressor 2 E2HC Crankc...

Page 93: ...R3T Y8E Not used R8T Thermistor Heat exchanger right lower liquid pipe R7T R11T R12T Electronic expansion valve Heat exchanger right lower Y7E Electronic expansion valve Refrigerant cooling air Electr...

Page 94: ...ayout SiUS372201EB 87 Part 2 Refrigerant Circuit 3 3 3 3 5 3 5 3 1 1 3 3 3 3 5 3 5 3 REYQ96 120AATJ REYQ96 120AAYD Inside Electrical Component Box R20T Thermistor Box air C 1P647827H C 1P645890H R20T...

Page 95: ...e heater Y4S Solenoid valve Accumulator oil return Compressor 1 M1C E1HC Crankcase heater S1PH High pressure switch M1C R4T Thermistor Receiver gas purge R15T R16T Y5S Solenoid valve Refrigerant adjus...

Page 96: ...olenoid valve Refrigerant cooling bypass Y11S Y1E Electronic expansion valve Heat exchanger right upper Solenoid valve Liquid shutoff Thermistor Heat exchanger right deicer Thermistor Heat exchanger r...

Page 97: ...onal Parts Layout Part 2 Refrigerant Circuit 90 3 3 3 5 3 5 3 3 3 3 3 3 5 3 5 3 1 1 REYQ144 168AATJ REYQ144 168AAYD Inside Electrical Component Box R20T Thermistor Box air C 1P647825H C 1P645889G R20T...

Page 98: ...2C Crankcase heater E2HC Thermistor Heat exchanger right deicer R8T Solenoid valve Refrigerant adjustment Y5S Electronic expansion valve Receiver gas purge Y4E Thermistor Heat exchanger left deicer R2...

Page 99: ...hanger right upper liquid pipe R6T Thermistor Heat exchanger right lower liquid pipe R7T R11T R10T Thermistor Receiver inlet Electronic expansion valve Subcooling heat exchanger Y6S Electronic expansi...

Page 100: ...iUS372201EB 93 Part 2 Refrigerant Circuit 3 3 3 3 5 3 5 1 1 3 3 3 3 3 5 3 5 3 1 1 REYQ192 216 240AATJ REYQ192 216 240AAYD Inside Electrical Component Box R20T Thermistor Box air C 1P647825H C 1P645889...

Page 101: ...valve Fusible plug Double tube heat exchanger Capillary tube Filter Filter Filter Filter SV Solenoid valve Y5S Capillary tube Electronic expansion valve Y4E R10T Check valve Check valve Pressure regul...

Page 102: ...anger Capillary tube Filter Filter Filter Filter SV Solenoid valve Y5S Capillary tube Electronic expansion valve Y4E R10T Check valve Check valve Pressure regulating valve SV Solenoid valve Y3S Liquid...

Page 103: ...e heat exchanger Capillary tube Filter Filter Filter Filter SV Solenoid valve Y5S Capillary tube Electronic expansion valve Y4E R10T Check valve Check valve Pressure regulating valve SV Solenoid valve...

Page 104: ...ube heat exchanger Capillary tube Filter Filter Filter Filter SV Solenoid valve Y5S Capillary tube Electronic expansion valve Y4E R10T Check valve Check valve Pressure regulating valve Solenoid valve...

Page 105: ...ube heat exchanger Capillary tube Filter Filter Filter Filter SV Solenoid valve Y5S Capillary tube Electronic expansion valve Y4E R10T Check valve Check valve Pressure regulating valve SV Solenoid val...

Page 106: ...ble plug Double tube heat exchanger Capillary tube Filter Filter Filter Filter SV Solenoid valve Y5S Capillary tube Electronic expansion valve Y4E R10T Check valve Check valve Pressure regulating valv...

Page 107: ...ection Capillary tube Check valve Strainer Oil separator Filter Capillary tube Compressor M2C INV2 SV Solenoid valve Y1S R18T HPS High pressure switch S1PH High pressure switch S2PH R17T Solenoid SV H...

Page 108: ...Solenoid valve Y3S Check valve Check valve Fusible plug Receiver R15T R16T Stop valve With service 5 16in 7 9mm flare connection Capillary tube Check valve Strainer Oil separator Filter Capillary tube...

Page 109: ...llary tube Check valve Strainer Oil separator Filter Capillary tube Compressor M2C INV2 SV Solenoid valve Y1S R18T HPS High pressure switch S1PH High pressure switch S2PH R17T Solenoid SV Heat exchang...

Page 110: ...Check valve Strainer Oil separator Filter Capillary tube Compressor M2C INV2 SV Solenoid valve Y1S R18T HPS High pressure switch S1PH High pressure switch S2PH R17T Solenoid valve Y3S SV Heat exchange...

Page 111: ...be Check valve Strainer Oil separator Filter Capillary tube Compressor M2C INV2 SV Solenoid valve Y1S R18T HPS High pressure switch S1PH High pressure switch S2PH R17T Solenoid valve Y3S SV Heat excha...

Page 112: ...tion Capillary tube Check valve Strainer Oil separator Filter Capillary tube Compressor M2C INV2 SV Solenoid valve Y1S R18T HPS High pressure switch S1PH High pressure switch S2PH R17T Solenoid valve...

Page 113: ...sion valve Y5E R23T Four way valve Y9S R21T SV Solenoid valve Y6S Check valve Check valve Strainer Oil separator Filter Capillary tube Compressor M2C INV2 SV Solenoid valve Y1S R18T HPS High pressure...

Page 114: ...Four way valve Y9S R21T SV Solenoid valve Y6S Check valve Check valve Strainer Oil separator Filter Capillary tube Compressor M2C INV2 SV Solenoid valve Y1S R18T HPS High pressure switch S1PH High pre...

Page 115: ...Y5E R23T Four way valve Y9S R21T SV Solenoid valve Y6S Check valve Check valve Strainer Oil separator Filter Capillary tube Compressor M2C INV2 SV Solenoid valve Y1S R18T HPS High pressure switch S1P...

Page 116: ...Y5E R23T Four way valve Y9S R21T SV Solenoid valve Y6S Check valve Check valve Strainer Oil separator Filter Capillary tube Compressor M2C INV2 SV Solenoid valve Y1S R18T HPS High pressure switch S1PH...

Page 117: ...ve Y5E R23T Four way valve Y9S R21T SV Solenoid valve Y6S Check valve Check valve Strainer Oil separator Filter Capillary tube Compressor M2C INV2 SV Solenoid valve Y1S R18T HPS High pressure switch S...

Page 118: ...onic expansion valve Y5E R23T Four way valve Y9S R21T SV Solenoid valve Y6S Check valve Check valve Strainer Oil separator Filter Capillary tube Compressor M2C INV2 SV Solenoid valve Y1S R18T HPS High...

Page 119: ...1H71W 128 3 3 When Wireless Remote Controller is Used Together 130 4 Address Setting for Wireless Remote Controller 131 5 Centralized Control Group No Setting 133 5 1 BRC1E73 133 5 2 BRC1H71W 135 5 3...

Page 120: ...BRC082A42W for BYFQ60C3W1W BRC082A42S for BYFQ60C3W1S BRC082A41W for BYFQ60B3W1 FXZQ TB BRC082A42W for BYFQ60C3W2W BRC082A41W for BYFQ60B3W1 FXUQ P FXUQ PA FXEQ P FXDQ M BRC4C82 FXSQ TA BRC082A43 FXS...

Page 121: ...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 the in...

Page 122: ...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 123: ...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 124: ...rating Blinks red Error is occurring Lights up blinks green Bluetooth connecting c LCD Displays the current setpoint and air conditioner operation status d NAVIGATE ADJUST button Navigate right Adjust...

Page 125: ...Installer menu Bluetooth Setting This screen is a menu for the administrator See the next page for items which can be selected 12 34 A3 01 Unit 00 This screen displays the time and the status of the...

Page 126: ...ection Airflow direction 1 setting h Depends on current setting Vertical Airflow Airflow direction 2 setting h Depends on current setting Ventilation Mode Ventilation mode setting h Depends on current...

Page 127: ...Contrast Contrast setting h h Clock Setting Clock setting h h Standard Temp Scale reference temperature setting h h About Administrator information h h Admin Password Administrator password setting h...

Page 128: ...to change the operation mode between cool and heat i Under centralized control Displayed if the system is under the management of a multi zone controller Optional and the operation of the system throu...

Page 129: ...controller setting Text mode Auto Cool 73 Room Icon mode 73 F 74 Text mode Scale screen Auto Cool Cool Warm Icon mode Scale screen When in the scale screen the setpoint can be changed in the range of...

Page 130: ...splay the information screen Home screen Auto Cool 73 Room 73 F 74 Text mode Icon mode Press and hold on the Home screen for 5 seconds Information screen 12 34 The screen switches to the Information s...

Page 131: ...ontroller during this time Not Displayed The remote controller has master control Able to select heating cooling operation Backup Indicates that backup operation is being carried out Energy savings In...

Page 132: ...p The display shows the set fan speed When the INSPECTION TEST button is pressed the display shows the system mode is in 13 14 15 16 17 TIMER RESERVE CANCEL BUTTON AIRFLOW DIRECTION ADJUST BUTTON OPER...

Page 133: ...ange a remote controller from Main to Sub proceed as follows 3 1 1 Field Settings The designation of the main and sub remote controllers can be swapped Note that this change requires turning the power...

Page 134: ...You may change the Main Sub setting of the remote controller while Checking the connection Please stand by is displayed by pressing and holding the Mode Selector button for 4 seconds or longer 1 It is...

Page 135: ...uto operation mode Filter auto clean Setback temperature setpoints Draft prevention If a sub controller does not display the home screen 2 minutes after its designation turn off the power Individual a...

Page 136: ...anation 1 main 2 sub Home screen 2 When the U5 error code appears press and hold until 2 appears on the screen When the U8 error code appears press and hold until 1 appears on the screen Result A cont...

Page 137: ...h a wired and a wireless remote controller for 1 indoor unit the wired controller should be set to Main Therefore the Main Sub switch SS1 of the signal receiver PCB must be set to Sub Main Sub Main Su...

Page 138: ...le below The address for the wireless remote controller is set to 1 at the factory To change the setting proceed as follows 1 Press FILTER SIGN RESET button and INSPECTION TEST button at the same time...

Page 139: ...ings A b Remote Controller Indoor Unit Multiple setting Display on remote controller Behavior to the remote controller operation when the functions are restricted as by an external control Other than...

Page 140: ...oup Address Select Group Address and then press the Menu OK button Press the Cancel button once Press the Cancel button once Service settings menu is displayed Item 2 is displayed Item 2 is displayed...

Page 141: ...th 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 142: ...up No for each group with UP button or DOWN button 4 Enter the selected group numbers by pressing RESERVE button Group Address Assign the group address and unit number for centralized control The grou...

Page 143: ...bout 1 minute on the liquid crystal display This is not an operative fault UP button DOWN button MODE button RESERVE button Mode No Field setting mode Group No INSPECTION TEST button Central Remote Co...

Page 144: ...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 disp...

Page 145: ...Airnet Address Unit No Address Set Outdoor unit Airnet Address Unit No Address Set Error History RC Error History Unit No Error Date Time Up to 10 errors received by the remote controller can be displ...

Page 146: ...N Fan tap 1 Speed Fan speed rpm 2 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 3 TBF Anti freezing contr...

Page 147: ...01 Displays the heat demand that CXTQ TA is currently sending to the gas furnace Displays the fan demand that CXTQ TA is currently sending to the gas furnace Current status of heat pump ON OFF for CX...

Page 148: ...Administrator Menu Installer Menu SiUS372201EB 141 Part 3 Remote Controller 7 Administrator Menu Installer Menu 7 1 BRC1H71W Refer to page 119 for details...

Page 149: ...ol of Outdoor Fans 156 5 6 Heat Exchanger Control 158 6 Protection Control 159 6 1 High Pressure Protection Control 159 6 2 Low Pressure Protection Control 161 6 3 Discharge Pipe Protection Control 16...

Page 150: ...eating Operation Only 194 9 10 Louver Control for Preventing Ceiling Dirt 195 9 11 Heater Control Except FXTQ TA FXTQ TB Models 196 9 12 Heater Control FXTQ TA FXTQ TB Models 197 9 13 Gas Furnace Cont...

Page 151: ...on before startup 1 Startup control in cooling 2 Startup control in heating Basic control 1 Normal control 2 Compressor PI control 3 Operation priority and rotation of compressors 4 Compressor step co...

Page 152: ...eaches certain number Refer to Error Codes and Descriptions on page 297 of the troubleshooting for the items to determine the error 2 2 When System is in Stop Control The four way valves retain the co...

Page 153: ...the pressure within the refrigerant system In addition the outdoor fan carry out the residual operation for a while to accelerate pressure equalizing and to suppress migration of the refrigerant to th...

Page 154: ...inverter is turned ON to charge the capacitor To avoid stresses to the compressor due to liquid refrigerant return or else after the startup the following control is made and the position of the four...

Page 155: ...xpansion valve main Y1E Y2E Y3E Fan motor M1F M2F Pc Pe 0 17 MPa 24 7 psi A B C D E Step 2X 3 0 rps F 5 sec A B C D E 0 pulse Maximum step PI control Compressor motor M1C M2C Electronic expansion valv...

Page 156: ...valve Heat exchanger left Y5E Electronic expansion valve Subcooling heat exchanger Y3E Superheating degree control discharge pipe protection Superheating degree control discharge pipe protection Supe...

Page 157: ...to adjust the capacity 2 Constant control TcS is fixed to the set value Tc setting Tc High pressure equivalent saturation temperature TcS Target temperature of Tc Varies depending on Tc setting opera...

Page 158: ...121 4 16 19 4 82 49 1 148 123 1 17 19 8 83 49 8 149 124 8 18 20 1 84 50 5 150 127 3 REYQ72AA Heating upper limit 19 20 5 85 51 2 20 20 7 86 52 0 21 21 0 87 52 7 22 21 3 88 53 4 23 21 6 89 54 2 24 21...

Page 159: ...81 95 5 108 3 95 5 108 3 32 25 8 0 0 29 7 0 0 107 73 3 0 0 34 6 38 7 182 96 8 109 8 96 8 109 8 33 26 2 0 0 29 7 0 0 108 74 4 0 0 35 1 39 2 183 98 1 111 3 98 1 111 3 34 26 5 0 0 29 7 0 0 109 75 4 0 0 3...

Page 160: ...29 2 185 94 2 89 2 94 2 89 2 36 27 4 0 0 27 4 0 0 111 81 1 0 0 33 7 29 6 186 95 6 90 6 95 6 90 6 37 27 8 0 0 27 8 0 0 112 82 3 0 0 34 2 30 0 187 96 9 91 9 96 9 91 9 38 28 2 0 0 28 2 0 0 113 83 5 0 0...

Page 161: ...4 0 0 24 4 0 0 110 69 0 0 0 32 0 37 0 185 95 1 100 2 95 1 100 2 36 24 8 0 0 24 8 0 0 111 70 0 0 0 32 5 37 5 186 96 5 101 6 96 5 101 6 37 25 1 0 0 25 1 0 0 112 71 0 0 0 33 0 38 0 187 97 9 103 0 97 9 1...

Page 162: ...onstant Subcooling electronic expansion valve EVT control In order to make the maximum use of the subcooling heat exchanger this function is used to exert PI control on the electronic expansion valve...

Page 163: ...3 333 12 342 0 342 0 13 349 349 13 359 0 359 0 14 366 366 14 377 0 377 0 15 384 384 15 396 0 396 0 16 402 402 16 213 203 213 203 17 422 422 17 223 213 223 213 18 442 442 18 234 224 234 224 19 464 464...

Page 164: ...31 428 531 428 21 531 428 531 428 22 391 0 391 0 22 558 445 558 445 22 558 445 558 445 23 406 0 406 0 23 586 465 586 465 23 586 465 586 465 24 216 206 216 206 24 614 485 614 485 24 614 485 614 485 25...

Page 165: ...se CL increase HL decrease Symbol meanings CL Cooling Load HL Heating Load CL decrease HL increase CL increase HL decrease 1 2 Left side Upperside Right Outdoor unit Upperside Right Lowerside Right Lo...

Page 166: ...step down 1 step up 2 step down After 10 seconds After 15 seconds After 15 seconds After 10 seconds Pc 3 57 MPa 518 psi Pc 3 70 MPa 537 psi Pc 3 14 MPa 455 psi Pc 3 43 MPa 498 psi Pc 3 67 MPa 532 psi...

Page 167: ...72 MPa 540 psi Normal control 9 step down All units Compressor step 1 3 step up Current step maintained High pressure standby 2 times within 40 minutes Pc High pressure sensor detection value for mast...

Page 168: ...E4 is displayed Low pressure standby 3 times within 60 minutes Low pressure standby 4 times within 60 minutes Normal control 9 step down 9 step up 3 step up 21 step down After 10 seconds After 15 sec...

Page 169: ...5 C A F Y 9 F A C X 10 C A F Y 18 F A C X 15 C A F Y 27 F A C X C A F Y F Compressor step 1 After 20 seconds HTdi 135 C 275 F HTdi 120 C 248 F continues for 10 minutes Ti 120 C 248 F continues for 5...

Page 170: ...ATJA REYQ192 216 240AATJB M1C M2C M1C M2C M1C M2C A more than 49 0 A more than 30 5 A more than 30 5 A more than 30 5 A more than 49 0 A more than 49 0 A more than 49 0 A B less than 48 3 A less than...

Page 171: ...ess than 97 C 207 F less than 97 C 207 F less than 100 C 212 F less than 100 C 212 F less than 100 C 212 F C more than 108 C 226 F more than 103 C 217 F more than 103 C 217 F more than 103 C 217 F mor...

Page 172: ...hanger right upper Y1E Same as normal control Same as normal control Electronic expansion valve Heat exchanger right lower Y2E Electronic expansion valve Heat exchanger left Y5E Electronic expansion v...

Page 173: ...c symbol Function of functional part Compressor motor M1C M2C Constant low pressure control Fan motor M1F M2F For heat exchanger mode Electronic expansion valve Heat exchanger right upper Y1E Same as...

Page 174: ...rmal control Non operating unit 224 pulse Thermostat OFF unit Forced thermostat ON PI control Branch Selector unit actuator Normal cooling Electronic expansion valve EVSC Y1E Thermostat ON 0 pulse Non...

Page 175: ...e Heat exchanger right lower Y7S Four way valve Heat exchanger left Y9S Four way valve HP LP gas pipe Y8S Solenoid valve Refrigerant cooling bypass Y11S Same as normal control Ending condition A lapse...

Page 176: ...olenoid valve Refrigerant adjustment Y5S OFF Solenoid valve Injection Y6S ON Four way valve Heat exchanger right upper Y10S OFF Four way valve Heat exchanger right lower Y7S OFF Four way valve Heat ex...

Page 177: ...FF Evaporating side ON Four way valve Heat exchanger right lower Y7S Four way valve Heat exchanger left Y9S Four way valve HP LP gas pipe Y8S OFF Solenoid valve Refrigerant cooling bypass Y11S Same as...

Page 178: ...ay valve Heat exchanger right lower Y7S OFF ON Four way valve Heat exchanger left Y9S OFF ON Four way valve HP LP gas pipe Y8S OFF Solenoid valve Refrigerant cooling bypass Y11S Same as normal control...

Page 179: ...ion or One of the outdoor units is stopped for 20 minutes or more only in cooling Example The following diagram shows outdoor unit rotation Master unit and sub unit in this section are the names for i...

Page 180: ...ectronic expansion valve will fully open and the electronic expansion valve of the indoor unit will open to activate the heating circuit The required switching time is approximately 6 minutes Field se...

Page 181: ...valve will fully open and the electronic expansion valve of the indoor unit will open to activate the heating circuit The required switching time is approximately 6 minutes Field settings however can...

Page 182: ...ion or cooling and heating simultaneous operation Using the dual pressure gas pipe as a suction gas pipe 2 Pump down residual operation 3 Pre startup control Switching between the electronic expansion...

Page 183: ...r units On the system with 1 compressor this emergency operation is not available 8 2 Demand Operation In order to limit the power consumption the capacity of outdoor unit is forcibly reduced by using...

Page 184: ...kit MP Drain pump kit ON MP Drain pump kit ON MP Closed Electronic expansion valve Capacity control Electronic expansion valve Closed YE MA OFF EH OFF EH Humidifier OFF Hu Humidifier OFF Hu YE The pr...

Page 185: ...Hu Fan Operating in L mode MF Fan Operating in L mode after it stops for 6 min MF YE Drain pump kit YE MP Swing flap Swing flap Set wind direction Fan MF Operating with set airflow rate YE Closed Pro...

Page 186: ...ogress Is defrost operation in progress Heating Operation A B Thermostat status No No 15 16 Option Option Option Option OFF Humidifier ON OFF Humidifier OFF ON Humidifier ON OFF Humidifier OFF OFF MP...

Page 187: ...in heating operation 12 Fan According to fan speed instruction from the remote controller the fan is put into operation in LL mode while in heating operation 13 Wind direction When the heating thermos...

Page 188: ...ting in heating operation Control target temperature remote controller displayed temperature 2 C 3 6 F The temperature difference for cooling heating mode switching is 5 C 9 F The above also applies t...

Page 189: ...suction air thermistor and the infrared floor sensor It is difficult to use only suction air temperature control for underfoot air conditioning The temperature difference for cooling heating mode swi...

Page 190: ...tion temperature fine adjustment control is carried out using a suction air thermistor or using the remote controller thermistor near the position of the user when the suction temperature is near the...

Page 191: ...ture Assuming the set temperature in the figure above is 24 C 75 F and the suction temperature has changed from 18 C 64 F to 28 C 82 F A D This example also assumes there are several other air conditi...

Page 192: ...CXTQ TA is set to 02 Tro will be the same as the cooling set temperature T Room temperature Remote controller set temperature Tro Room temperature at the start of dry operation Tr Room temperature 1 T...

Page 193: ...temperature to operate 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...

Page 194: ...rol 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 to 3qC 5 4...

Page 195: ...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 196: ...the drain pump turns ON simultaneously 1 If the float switch continues to turn OFF and ON 5 times consecutively it is judged as a drain system error and the error code AF is displayed on the remote co...

Page 197: ...lower As T Remote controller set temp Suction air temp becomes smaller SHS becomes higher Subcooling degree control in heating operation This function is used to adjust the opening of the electronic...

Page 198: ...re 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 C 44 6 F for 10 minutes continuously Concept of fre...

Page 199: ...C 33 8 F for total of 15 minutes or Liquid pipe temperature 0 C 32 F for 1 minute continuously During freeze up prevention control the airflow rate is fixed to LL The cancelling conditions are same a...

Page 200: ...ntal Hot start from thermostat OFF mode for prevention of cold air Swing LL Horizontal Horizontal Horizontal Horizontal Airflow direction set LL Horizontal Horizontal Horizontal Horizontal Stop Swing...

Page 201: ...n is 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 Louv...

Page 202: ...nd FXEQ P models Factory setting FXFQ AA FXFQ T models draft prevention position FXZQ TA FXZQ TB FXEQ P models standard 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...

Page 203: ...onducted 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 outd...

Page 204: ...itions for the electric heater Heating Automatic heating Auxiliary heater enabled 1 Not in heating Automatic heating Auxiliary heater enabled 0 3 Heater not allowed Heater allowed Heater 1 OFF Heater...

Page 205: ...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 enabled 4 Heate...

Page 206: ...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 207: ...furnace combustion heating Detail The airflow rate during gas furnace operation depends on the intensity of combustion heating and therefore may be different from the airflow setting displayed on the...

Page 208: ...ters refer to page 220 4 A and B values vary automatically based on the field setting 12 22 2 5 If directly after a change in conditions it is such that the thermostat could be either ON or OFF contro...

Page 209: ...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 CFM determined by other controls 2 Fan residual oper...

Page 210: ...mostat ON signal 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 set time 3 Free cooling only Thermosta...

Page 211: ...he BS Buttons and DIP Switches on the PCB 242 2 4 Connecting the PC Configurator to the Outdoor Unit 245 2 5 Monitoring Function and Field Settings 245 2 6 Cool Heat Mode Changeover 270 2 7 Night Time...

Page 212: ...setting 1 Press and hold Cancel button for 4 seconds or more Service settings menu is displayed 2 Select Field Settings in the Service Settings menu and press Menu OK button Field settings screen is...

Page 213: ...een returns 8 In the case of multiple setting changes repeat 3 to 7 9 After all setting changes are completed press Cancel button twice 10 Backlight goes out and Checking the connection Please standby...

Page 214: ...Text mode Icon mode Mode 20 Unit 00 Enter Return Mode 20 Unit 00 a b Press or button to select Mode No and press a Mode No b Unit No Sub menu screen Text mode Icon mode Mode 20 Unit 00 Enter Return Mo...

Page 215: ...on mode Press or button to select Enter or and then press button to set the selection Sub menu screen Text mode Icon mode SW 00 Set Cancel 01 SW 00 01 b a Press or button select First Code No and then...

Page 216: ...he setting has been changed the screen may return to the home screen without returning to the installer menu CAUTION settings For more information see the installation manual of the optional accessory...

Page 217: ...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 DOWN bu...

Page 218: ...ff 2 Auxiliary electric heater OFF temperature Toff 3 Setting of airflow rate when heating Standard Slightly increased Increased 221 3 Electric heater setting Refer to page on the right for details 22...

Page 219: ...r to page on the right for details 229 6 External static pressure settings Refer to page on the right for details 230 14 24 4 Optional kit setting UV lamp humidifier economizer Refer to page on the ri...

Page 220: ...h h 11 21 1 Auxiliary electric heater ON temperature h h h h h h 1 Auxiliary electric heater ON OFF temperature h h 2 Auxiliary electric heater OFF temperature h h h h h h 3 Setting of airflow rate wh...

Page 221: ...zer 5 Dry mode set temperature 9 Mold proof operation setting h 11 Gas furnace test mode 15 25 0 Drain pump operation settings h 1 Humidification when heating thermostat is OFF h h h h h h h h h 2 Dir...

Page 222: ...c heater OFF temperature h h h h h 3 Setting of airflow rate when heating 3 Electric heater setting h 5 Electric heater capacity setting h 6 Detection rate setting 7 Automatic airflow adjustment h 8 C...

Page 223: ...and humidifier interlock selection h h h h h h 5 Individual ventilation setting h h h h h h h h 1b 4 Display of error codes on the remote controller h h h h h h h h 1c 0 Room temperature display h h h...

Page 224: ...g for the Second Code No is 02 Factory setting Setting 10 20 1 01 Long life filter 02 Ultra long life filter Filter contamination heavy light 10 20 0 Light 01 Heavy 02 Light 01 Heavy 02 Model FXFQ AA...

Page 225: ...6 18 20 22 24 26 28 30 32 34 66 2 62 6 69 8 73 4 77 80 6 84 2 87 8 91 4 95 98 6 F F 57 2 60 8 64 4 68 71 6 75 2 78 8 82 4 86 89 6 93 2 In cooling In heating Suction air temperature Suction air tempera...

Page 226: ...eld setting 10 20 2 has priority When field setting 10 20 6 01 is set at the same time as 10 20 2 01 02 03 field setting 10 20 6 has priority for group connection and 10 20 2 has priority for individu...

Page 227: ...20 C 68 F State of absence 30 60 60 120 Elapsed time of absence min The values in parentheses represent the time when Second code No is 02 Set temperature Toff S 1 Ton S 1 Thermostat OFF Thermostat O...

Page 228: ...7 2 F 3 5 C 6 3 F 3 C 5 4 F 2 5 C 4 5 F 2 C 3 6 F 1 5 C 2 7 F Toff 06 0 5 C 0 9 F h h h h h h 05 0 C 0 F h h h h h 04 0 5 C 0 9 F h h h h 03 1 C 1 8 F h h h 02 1 5 C 2 7 F h h 01 2 C 3 6 F h h Availa...

Page 229: ...c heater with heat pump allowed Not allowed 07 Electric heater with heat pump not allowed Allowed 08 Electric heater with heat pump allowed Allowed Factory setting Model Mode No First Code No Second C...

Page 230: ...ow rate control button to select High Middle or Low 3 Make settings to adjust the airflow rate automatically After setting to fan operation mode enter the field setting mode while operation is stopped...

Page 231: ...or sensor only Offset the detected value of the infrared floor sensor with a certain temperature This setting should be used to have the actual floor temperature detected when for example the unit is...

Page 232: ...emote controller is provided 04 In case of Error Display appears on the remote controller output is provided 05 06 07 Only for FXSQ TA FXSQ TB FXMQ PB FXMQ TB Economizer field supply ON OFF signal is...

Page 233: ...ter Power Failure Factory setting When the Auto Restart after Power Failure setting is turned OFF all the units will remain OFF after power failure or after the main power supply is restored When this...

Page 234: ...For High ceiling 1 or 2 initial setting by remote controller is required 2 A closing member kit optional is required for 4 3 or 2 direction airflow Mode No First Code No Second Code No Contents 12 22...

Page 235: ...3 5 m 11 1 2 ft FXUQ P FXUQ PA Factory setting Mode No First Code No Second Code No Setting Ceiling height FXUQ18 24P A FXUQ30 36P A 13 23 0 01 Standard Lower than 2 7 m 8 3 4 ft Lower than 3 2 m 10 1...

Page 236: ...ction setting according to the respective purpose Factory setting When the model FXFQ AA is attached with a closing member kit set the Second Code No to 02 or 03 1 4 26 Setting of Static Pressure Sele...

Page 237: ...4 0 80 inWG 3 FXMQ54PB cannot be set to 30 Pa 0 12 inWG or 150 200 Pa 0 60 0 80 inWG FXSQ TA FXSQ TB models Factory setting Mode No First Code No Second Code No Contents 13 23 6 03 30 Pa 0 12 inWG 1 2...

Page 238: ...10 Pa 0 44 inWG 09 120 Pa 0 48 inWG 10 130 Pa 0 52 inWG 11 140 Pa 0 56 inWG 12 150 Pa 0 60 inWG 1 13 160 Pa 0 64 inWG 1 14 180 Pa 0 72 inWG 1 15 200 Pa 0 80 inWG 1 FXMQ TA models Factory setting Mode...

Page 239: ...Code No Second Code No Contents UV lamp humidifier fan speed Economizer setting for Mech standby duration minutes 14 24 4 01 Refer to controller 10 02 High 10 03 Refer to controller 20 04 High 20 05 R...

Page 240: ...n conducts the fan residual operation by linking to indoor unit The indoor fan carries out residual operation for one minute after the thermostat is stopped For the purpose of preventing dust on the a...

Page 241: ...is possible to change whether or not the room temperature is displayed for the detailed display screen Factory setting 1 4 39 Thermistor Sensor for Auto Changeover and Setback Control by the Remote Co...

Page 242: ...ed natural evaporation type humidifier or branch air duct is equipped due to the possibility of dew condensation This setting restricts the airflow block function preventing that the airflow block is...

Page 243: ...ng 2 Stage 1 2 3 4 Dip switch DS1 Heat Airflow Trim 15 10 OFF OFF OFF OFF 12 8 ON OFF OFF OFF 9 6 OFF ON OFF OFF 6 4 ON ON OFF OFF 3 2 OFF OFF ON OFF 0 0 ON OFF ON OFF 3 2 OFF ON ON OFF 6 4 ON ON ON O...

Page 244: ...by central remote controller only and OFF by remote controller only Centralized Used when you want to turn ON by central remote controller only and turn ON OFF freely by remote controller during set t...

Page 245: ...ontrol Operation mode setting Unified operation individual operation by central remote controller or operation controlled by timer Unified OFF individual stop by central remote controller or timer sto...

Page 246: ...rwards upload the configuration to the system 2 1 DIP Switch Setting when Mounting a Spare PCB After replacement with spare PCB be sure to make settings shown in the table on the following page The pr...

Page 247: ...sition of the DIP switches on spare PCB for REYQ AA Change DIP switches at time of power disconnected Application model The setting method represents the position of switches REYQ72AA Set DS2 2 to ON...

Page 248: ...n the inspection door You can see the 3 BS buttons and the 3 seven segment displays and DIP switches Operate the switches and BS buttons with an insulated stick such as a closed ballpoint pen to avoid...

Page 249: ...setting is explained Initialization Default Situation Turn ON the power supply of the outdoor unit and all indoor units When the communication between indoor units and outdoor unit s is established a...

Page 250: ...on Example Checking the content of parameter 1 10 to know how many indoor units are connected to the system Mode 1 Setting 10 Make sure the segment indication is displayed in operational default mode...

Page 251: ...button again to start operation according to the chosen value Example Checking the content of parameter 2 18 to define the high static pressure setting of the outdoor unit s fan Mode 2 Setting 18 Make...

Page 252: ...ng can also be performed via the PC configuration software Below relevant Monitoring mode mode 1 and Field setting mode mode 2 settings are explained in detail Making settings is done via the master o...

Page 253: ...ion The second method is to enable power consumption limitation based on an external input For this operation an optional accessory is required 1 5 shows the current Te target parameter position 1 6 s...

Page 254: ...urrent heat exchanger gas lower thermistor value F 1 55 shows the current deicer right thermistor value F 1 56 shows the compressor run time hour divided by 100 1 57 shows the current subcooling of he...

Page 255: ...4 6 F 8 C 46 4 F 9 C 48 2 F 10 C 50 0 F 11 C 51 8 F 0 2 3 4 5 6 7 9 Tc setting Used to make setting of targeted condensing temperature for heating operation 2 0 9 Auto 41 C 105 8 F 43 C 109 4 F 46 C 1...

Page 256: ...B 2 2 8 OFF ON 10 Hz 0 1 29 Intermittent fan operation Used for intermittent fan operation setting 2 2 9 OFF 30 minutes OFF 1 minute ON with medium fan speed 30 minutes OFF 1 minute ON with high fan s...

Page 257: ...Returned when Ta 32 5 C 90 5 F 6 Limited in cooling when Ta 23 5 C 74 3 F Returned when Ta 26 5 C 79 7 F 7 Limited in cooling when Ta 19 3 C 66 7 F Returned when Ta 22 3 C 72 1 F 8 35 Outdoor 40 m 130...

Page 258: ...changing branch selector switching time All piping length between branch selector unit and indoor units should be less than 9 7 m 32 ft 2 7 1 Standard Approximately 4 minutes 0 1 78 Heat pump lockout...

Page 259: ...5 F Auxiliary heater always not allowed Auxiliary heater always allowed 1 1 1 1 1 1 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 98 Auxiliary heater maximum allowable temperature release differential Auxiliary hea...

Page 260: ...t operation when outdoor units are connected in multiple system combination Change 2 0 to 0 1 or 2 in function of required functionality 2 2 Low noise demand address Address for low noise demand opera...

Page 261: ...ing cooling operation Default value 2 Value 2 8 Te target 0 Auto 2 default 6 C 42 8 F 3 7 C 44 6 F 4 8 C 46 4 F 5 9 C 48 2 F 6 10 C 50 0 F 7 11 C 51 8 F Change 2 8 to 0 2 7 in function of required ope...

Page 262: ...ure the outdoor fan is delivering this setting should be activated For details about this setting see technical specifications Default value 0 To activate this function change 2 18 to 1 2 19 Phased in...

Page 263: ...emperature If the outdoor temperature is outside the above range or the indoor temperature is outside the above range even after cooling or heating the error code E 2 or E 3 is displayed and the funct...

Page 264: ...moments for this function are defined under setting 2 26 and 2 27 Default value 0 Change 2 22 to 1 2 or 3 in function of required level 2 25 Night time low noise operation level via the external cont...

Page 265: ...lt on the inverter checker module All 3 phases and neutral are available and Inverter PCB control is active Check if the green LED HAP on the inverter PCBs are blinking normal approx 1 second If LEDs...

Page 266: ...AAYD 460 V unbalance maximum 2 Check 2 DC voltage at connector X3A increases to 260 VDC for REYQ72AATJ at connector X3A and X4A increases to 260 VDC for REYQ96 240AATJ at connector X3A increases to 60...

Page 267: ...tem needs to run under power consumption limitation conditions when an external signal is sent to the unit this setting defines the level power consumption limitation that will be applied for step 1 T...

Page 268: ...de fan speed is limited to L tap when indoor units capacity 130 2 Fan speed follows the setting of remote controllers not limited by indoor units connection capacity 3 Limited in cooling when Ta 29 5...

Page 269: ...2 Sub INV 2 is disabled permanently Set 3 Sub module is disabled permanently 2 42 Outdoor fan noise countermeasure Change fans rotational speed and reduce noise by the interference of air blow noise b...

Page 270: ...e set manually to same status U7 error will appear 1 forced Master F1F2 Ind terminals should be connected to indoor units 2 forced Sub only Q1Q2 terminals should be wired to Master module 2 60 Gas fur...

Page 271: ...For more information and advice about the effect of these settings refer to Energy Saving and Optimum Operation on page 276 2 82 Heating comfort setting for VRT control Default value 1 Value 2 82 Hea...

Page 272: ...some indoor units are temporarily without power supply Following conditions need to fulfil Maximum equivalent piping length of the farthest indoor less than 120 m 394 ft Index indoor units power simul...

Page 273: ...97 Auxiliary heater maximum allowable temperature Auxiliary heater is allowed to energize when the ambient temperature is smaller than the auxiliary heater maximum allowable temperature Auxiliary hea...

Page 274: ...tting Type I Value 2 16 Auxiliary heater 0 default OFF 1 ON 2 37 Auxiliary heater setting Type II Value 2 37 Controlling mode 0 default OFF 1 Mode 1 2 Mode 2 3 Mode 3 4 Mode 4 5 Mode 5 6 Mode 6 Type D...

Page 275: ...e is smaller than the Heat Pump Lockout Temperature below this setting is only affective when heat pump lockout mode has been set Unit will switch to heat pump lockout Heat pump lockout temperature Fa...

Page 276: ...ing alarm EA Box air thermistor abnormality H1 Harness abnormality between outdoor unit main PCB and inverter PCB H3 Outdoor fan PCB abnormality H7 Outdoor air thermistor abnormality H9 Discharge pipe...

Page 277: ...S1 A1P ON OFF 1 2 3 4 F1 F2 F1 F2 F1 F2 IN D OUT D BS F1 F2 F1 F2 OUT D BS Cooling Only 1st unit Final unit Final Branch Selector unit In case of the indoor unit connect as the cooling only unit it wi...

Page 278: ...evel for the item 2 25 B When night time low noise operation is carried out automatically External control adaptor for outdoor unit is not required 1 While in setting mode 2 select a night time low no...

Page 279: ...PM 12 00 AM 7 00 AM 8 00 AM Set with night time low noise operation end setting Factory setting is 8 00 AM Set with night time low noise operation start setting Factory setting is 10 00 PM Operation s...

Page 280: ...When the Normal demand operation is carried out Use of the external control adaptor for outdoor unit is not required 1 While in setting mode 2 set the item 2 32 Setting of alternate demand to ON 2 Wh...

Page 281: ...t with Demand 1 level setting When the Normal demand setting is set to ON OFF has been set at factory the power consumption can be set with the Demand 1 level setting 70 of rated power consumption has...

Page 282: ...operation are displayed 2 Setting mode 2 H1P ON 1 In setting 1 press and hold the MODE BS1 button for more than 5 seconds Setting mode 2 is entered and H1P lights 2 Press the SET BS2 button several t...

Page 283: ...set depending on the outdoor air conditions As such adjusting the refrigerant temperature to match the required load which is also related to the outdoor air conditions E g when your system is operati...

Page 284: ...hange field setting 2 81 to 3 To activate the powerful comfort setting under heating operation change field setting 2 82 to 3 Quick Overshoot during heating operation or undershoot during cooling oper...

Page 285: ...ld setting 2 81 to 1 To activate the mild comfort setting under heating operation change field setting 2 82 to 1 Eco The original refrigerant temperature target which is defined by the operation metho...

Page 286: ...own below before turning on the power to the Branch Selector unit This setting is enabled when the Branch Selector unit power is turned on Be sure to make the setting before turning on the power Alway...

Page 287: ...l box cover Setting 1 Setting for branch ports to which no indoor unit is connected ON OFF ON OFF 1 A1P A3P 2 3 4 1 2 DS1 DS2 3 4 A B C D I J K L A B C D I J K L Branch port number Terminal No to whic...

Page 288: ...et the DIP switches DS1 DS2 for the corresponding branch ports based on the following table 3 Once work is complete be sure to close the control box cover BSF4Q54TVJ Setting Setting when joining branc...

Page 289: ...agram attached to the control box cover Note Setting Setting for branch ports to which no indoor unit is connected Example 1 Example 1 When not connecting the indoor unit to the A and B branch ports O...

Page 290: ...tor unit 5 Turn ON the DIP switch of DS1 corresponding to the system to be checked For example when checking the system C Turn ON DS1 3 on A1P 6 If the relevant indoor fan is on it is OK If another in...

Page 291: ...heckpoints Cautions or warnings Are all units securely installed Dangerous for turning over during storm Possible damage to pipe connections Is the ground wire installed according to the applicable lo...

Page 292: ...d if the compressor is running at this time After that the gas furnace will run in tens of seconds Tens of minutes might well be needed to stop compressor if the outdoor unit is particular operation 7...

Page 293: ...Motor 326 3 10 Blower Motor Not Running 327 3 11 Indoor Fan Motor Status Abnormality 328 3 12 Low Indoor Airflow 329 3 13 Swing Flap Motor Abnormality 330 3 14 Power Supply Voltage Abnormality 332 3...

Page 294: ...nd Inverter PCB 391 3 51 Outdoor Fan PCB Abnormality 392 3 52 High Pressure Sensor Abnormality 393 3 53 Low Pressure Sensor Abnormality 394 3 54 Inverter PCB Abnormality 395 3 55 Momentary Power Failu...

Page 295: ...ial Setting for Communication Completes 447 3 81 Climate Talk Communication System Combination Error After Initial Setting for Communication Completes 448 4 Check 449 4 1 High Pressure Check 449 4 2 L...

Page 296: ...ditioning load IN COOLING Too many heat sources e g OA equipment located in a room IN DRYING The reason is that the dry operation serves not to reduce the room temperature where possible Change the sy...

Page 297: ...setting button makes no changes in the airflow rate In heating operation when the room temperature reaches the set degree the outdoor unit will stop while the indoor unit is brought to fan LL operati...

Page 298: ...welling Normal operation Outdoor unit Pitch of operating sounds changes The reason is that the compressor changes the operating frequency Normal operation 12 Dust comes out from the system Dust comes...

Page 299: ...operation while the compressor is during operation or under stop control or right after defrost IN or defrost OUT Wait until the operation becomes stable 2 Operation does not switch from heat pump to...

Page 300: ...ing airflow block the airflow block will be routinely lifted become horizontal during heating operation No defect Set louver to horizontal P0 during thermostat OFF 9 The infrared presence sensor deter...

Page 301: ...ng corrective action Operation Status Display Abnormal shutdown The system stops operating The operation lamp green starts to blink The message Error Push Menu button will blink at the bottom of the s...

Page 302: ...the remote controller starts to beep 3 short beeps Follow all steps below 1 short beep Follow steps 3 and 4 Continue the operation in step 4 until you hear a continuous beep This continuous beep indic...

Page 303: ...er automatically returns to the normal mode O0 A C E H F J L P U 9 8 7 6 5 4 UP button DOWN button 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...

Page 304: ...ermistor abnormality 353 C5 l Indoor heat exchanger gas pipe thermistor abnormality 353 C6 l Combination error between indoor unit control PCB and fan PCB 354 Capacity setting abnormality 355 Blower m...

Page 305: ...r overcurrent 403 L9 l Compressor startup abnormality 405 LC l Transmission error between inverter PCB and outdoor unit main PCB 407 P1 l Power supply voltage imbalance 409 P4 1 l Inverter radiation f...

Page 306: ...ctions of the connector X12A on the 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...

Page 307: ...owchart and make a diagnosis of the relevant unit based on the Error code shown to the left E1 02 Defective outdoor unit PCB E1 08 Outdoor unit sub PCB error Master E1 09 Outdoor unit sub PCB error Su...

Page 308: ...vant unit based on the Error code shown to the left E9 03 Electronic expansion valve coil Y2E error Master E9 04 Electronic expansion valve coil Y3E error Master E9 05 Electronic expansion valve coil...

Page 309: ...M1C overheat error Sub F3 25 Compressor M2C overheat error Master F3 26 Compressor M2C overheat error Sub F4 01 Wet alarm Refer to the F4 flowchart and make a diagnosis of the relevant unit based on...

Page 310: ...J3 39 Defective M2C compressor body thermistor R18T Short Master J3 42 Defective M2C compressor body thermistor R18T Open Sub J3 43 Defective M2C compressor body thermistor R18T Short Sub J3 47 Defect...

Page 311: ...r left gas pipe thermistor R21T Sub J6 33 Error detection of heat exchanger left gas pipe thermistor R21T Master J6 34 Error detection of heat exchanger left gas pipe thermistor R21T Sub J7 01 Defecti...

Page 312: ...ensor S1NPL Open Sub JC 09 Defective low pressure sensor S1NPL Short Sub L1 01 IPM error Compressor M1C Master Refer to the L1 flowchart and make a diagnosis of the relevant unit based on the Error co...

Page 313: ...ssor M2C momentary overcurrent Master L5 15 Compressor M2C momentary overcurrent Sub L8 03 Compressor M1C overcurrent Master Refer to the L8 flowchart and make a diagnosis of the relevant unit based o...

Page 314: ...er supply Sub U1 06 Reverse phase open phase of power supply when power ON Sub U1 19 Power supply frequency issue Master U1 20 Power supply frequency issue Sub U2 01 Shortage of inverter 1 power suppl...

Page 315: ...adaptor for outdoor unit is installed U7 03 Transmission error between Master and Sub units U7 05 Multi system error U7 06 Error in address settings of Sub unit U7 07 Connection of four or more outdo...

Page 316: ...e LP sensor failure Tf sensor failure Tg sensor failure Four way valve coil failure Four way valve failure HP Refer to JA troubleshooting LP Refer to JC troubleshooting Tg Refer to J9 troubleshooting...

Page 317: ...to C9 troubleshooting Th2 Refer to C4 troubleshooting Th3 Refer to C5 troubleshooting LP Refer to JC troubleshooting If the above error is not seen the corresponding indoor electronic expansion valve...

Page 318: ...shall be the numbers which indicate indoor unit type for the tens digit and capacity index for the ones digit See Table 1 and 2 for detail Detail of error Type of error Product type code 1 Outdoor un...

Page 319: ...digit Prediction code Prediction sub code AirNet address display flag Prediction code detail information Product type digit Prediction code Prediction sub code AirNet address display flag Product type...

Page 320: ...osed Causes Activation of external protection device Improper field setting Defective indoor unit control PCB Troubleshooting ON OFF input from outdoor mode No 12 first code No 1 has been set to exter...

Page 321: ...own 24 VAC power is not supplied to TH2 and TR2 terminals FXTQ TA FXTQ TB or R and C terminals CXTQ TA on the indoor unit PCB Troubleshooting Fuse F1U is blown 24 VAC power is supplied to TH2 and TR2...

Page 322: ...nvolatile memory Maintains memory contents even when the power supply is turned OFF Supposed Causes Defective indoor unit control PCB External factor Noise etc Troubleshooting Turn the power supply OF...

Page 323: ...nnecting or disconnecting connectors or parts may be damaged Replace the float switch S1L Modify the float switch s connection and turn ON again Connect the drain pump and turn ON again Connect either...

Page 324: ...rminals 2 is in accordance to the criteria 3 within 5 minutes of resetting the power supply A Model 1 Float switch S1L short circuit connector 2 Drain pump M1P connector 3 Drain pump M1P voltage Note...

Page 325: ...n wires in short circuit of or disconnection of connectors from the fan motor harness Defective fan motor Broken wires or defective insulation Abnormal signal output from the fan motor defective circu...

Page 326: ...pins more than the judgment criteria Disconnect the connector from the fan motor and then make measurement of resistance between pins Turn OFF the power supply and then wait for a period of 10 minute...

Page 327: ...an motor lock motor related or external factors Defective fan motor disconnection or insulation failure Defective indoor unit PCB Troubleshooting Connect the connector correctly Turn OFF the power sup...

Page 328: ...ence 1 Check also if the relay connector between the indoor unit control PCB and the fan motor are correctly connected CHECK 16 Refer to page 466 YES Replace the fan motor M1F Replace the indoor unit...

Page 329: ...ed Causes Defective indoor fan motor Broken wires Defective contact Troubleshooting CHECK 16 Refer to page 466 NO YES YES Is the X4A connector securely connected NO Is the power of 12 VDC supplied bet...

Page 330: ...n motor in operation Error from the position 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...

Page 331: ...eplace the indoor fan motor M1F YES NO YES The fan can be moved lightly by hand after the fan motor connector of the fan PCB A2P is removed Replace the indoor fan motor M1F NO YES NO YES There is a fo...

Page 332: ...ween GND and Hw Hv or Hu terminals are short circuited Replace the indoor fan motor M1F YES Replace the fan PCB A2P YES NO The resistance among U V and W are unbalanced or short circuited NO The HAP l...

Page 333: ...Supposed Causes Defective power supply for the indoor fan motor Clogged drain piping Activation of the indoor unit safety device Defective contact in the fan wiring circuit Troubleshooting Properly co...

Page 334: ...the rotation speed at 5 second intervals using the feedback of the fan motor Performs rotation sampling 720 times takes approximately one hour and if the rotation speed falls below 50 rpm over 100 ti...

Page 335: ...f the 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...

Page 336: ...tarts If 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...

Page 337: ...ipped with a swing flap function The swing motor works when the power supply is turned OFF and then restart The relay cable is short circuited or disconnected Caution Be sure to turn off the power swi...

Page 338: ...1S FXAQ P X36A M1S Replace the power supply relay cable Replace the defective swing motor 2 Take the flap cam mechanism apart reassemble and turn ON again YES NO YES NO The relay cable has no continui...

Page 339: ...nal line Defective wiring Instantaneous power failure others Troubleshooting Check the condition of the power supply 1 Check if power supply voltage is 208 230 V 10 2 Check if there is power open phas...

Page 340: ...ows abnormality Error Decision Conditions If the information shows Over Under Voltage status it will be deemed a MOTOR VOLTS abnormal operation Error Reset Conditions Reset by remote controller Suppos...

Page 341: ...ture of liquid pipe of heat exchanger Supposed Causes Defective electronic expansion valve coil Defective indoor unit control PCB Defective relay cables Troubleshooting CHECK 18 Refer to page 470 NO Y...

Page 342: ...h error code of the gas furnace Refer to the gas furnace manual for details Troubleshooting 1 In some cases of gas furnace abnormality regarding gas combustion once an error occurs display indication...

Page 343: ...nges from ON to OFF while the compressor is not in operation Error code is displayed but the system operates continuously Supposed Causes Humidifier unit optional accessory leaking Defective drain pip...

Page 344: ...or unit Dust detection sensor light receiving side is short circuited The total of fan operation time exceeds a specified value after dust collection sign display Limit switch does not detect when air...

Page 345: ...und the dust box NO NO Go to Diagnosis Flowchart 4 Air filter rotation error AH 06 Is the rotation of air filter normal YES NO Go to Diagnosis Flowchart 5 Damper rotation error AH 07 Does the damper o...

Page 346: ...Transmission error between self cleaning decoration panel and indoor unit Diagnosis Flowchart 1 NO Properly connect the connector Is the connector X1A on the self cleaning decoration panel PCB properl...

Page 347: ...eaning decoration panel PCB AH 04 Dust detection sensor error Diagnosis Flowchart 2 NO Properly connect the connector Is the connector X12A on the self cleaning decoration panel PCB properly connected...

Page 348: ...Replace the harness YES Remove the external factor Is there any external factor other than the error such as noise NO Turn OFF the power supply and then turn it ON again Then start operation with remo...

Page 349: ...atter Is there any foreign matter in the filter drive motor or drive parts NO YES Replace the air filter Is the filter damaged NO YES Replace the filter drive gear Is the filter drive gear damaged NO...

Page 350: ...test operation refer to the operation manual of the self cleaning decoration panel YES NO Normal Error AH recurs or the self cleaning decoration panel lamp red blinks The error could be caused by othe...

Page 351: ...the foreign matter Is there any foreign matter in the damper drive motor or drive parts NO YES Replace the damper or damper drive gear Is the damper or damper drive gear damaged NO A Go to the next p...

Page 352: ...test operation refer to the operation manual of the self cleaning decoration panel YES NO Normal Error AH recurs or the self cleaning decoration panel lamp red blinks The error could be caused by othe...

Page 353: ...d AH 08 Filter auto clean operation error Diagnosis Flowchart 6 NO YES Remove the external factor Is there any external factor other than the error such as noise Turn OFF the power supply and then tur...

Page 354: ...Stop the air conditioning operation and perform filter auto clean operation 1 Please set a time period during which air conditioning operation is stopped for about 20 minutes every day Has any air co...

Page 355: ...city code is not saved to the PCB and the capacity setting adaptor is not connected When a capacity that does not exist for that unit is set Supposed Causes The capacity setting adaptor was not instal...

Page 356: ...or Detection Transmission conditions between the indoor unit control PCB A1P and fan PCB A2P are checked via microcomputer Error Decision Conditions When normal transmission is not carried out for a c...

Page 357: ...and connect X70A back to original condition Under above field setting mode second code No is 01 NO NO YES Replace the fan PCB A2P YES YES Is the connector between indoor unit control PCB A1P and fan P...

Page 358: ...abnormal 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 I...

Page 359: ...posed Causes Disconnection of the communication wire between the CXTQ TA and the gas furnace Power supply to the gas furnace is cut Troubleshooting NO Caution Be sure to turn off the power switch befo...

Page 360: ...C9 for FXTQ TA FXTQ TB and CXTQ TA models CHECK 11 Refer to page 459 Is the thermistor normal Caution Be sure to turn off the power switch before connecting or disconnecting connectors or parts may b...

Page 361: ...connection of capacity setting adaptor Field setting error Troubleshooting NO Caution Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged Was ind...

Page 362: ...connection of the capacity setting adaptor Wrong field setting Troubleshooting Is the indoor unit PCB A1P replaced by the spare PCB After transmission between the indoor and the outdoor PCBs is establ...

Page 363: ...information 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...

Page 364: ...ll be 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...

Page 365: ...PCB Troubleshooting 1 Connector and indoor unit control PCB CHECK 11 Refer to page 459 Is the optional remote sensor is installed Field setting 10 20 2 is set to 03 Connector is connected to the indo...

Page 366: ...y be damaged YES NO Is CC displayed on the remote controller 2 YES NO Does it function normally Remove the humidity sensor from the indoor unit control PCB and insert it again Normal Poor connector co...

Page 367: ...nfrared presence sensor connector CE 01 Defective infrared floor sensor Temperature compensation circuit disconnection CE 02 Defective infrared floor sensor Temperature compensation short circuit CE 0...

Page 368: ...connector correctly Connect the connector correctly NO YES YES Is the connection of the connector on infrared presence sensor PCB and the connector 1 normal NO YES YES Is the connection of the sensor...

Page 369: ...connector correctly Connect the connector correctly NO YES YES Is the connection of the connector on infrared floor sensor PCB and the connector 1 normal NO YES YES Is the connection of the sensor con...

Page 370: ...ress data No 26 Is the connection of the sensor connector normal Displays by the above verification method Displays CE 03 again or for sensor and address data Replace the sensor Connect the connector...

Page 371: ...ress data No 26 Is the connection of the sensor connector normal Displays by the above verification method Displays CE 04 again or for sensor and address data Replace the sensor Connect the connector...

Page 372: ...roubleshooting 1 How to delete the history of error codes Press the ON OFF button for 4 seconds and more while the error code is displayed in the inspection mode Clear the error code history 1 While i...

Page 373: ...mal Supposed Causes Defective outdoor unit main PCB A1P Defective outdoor unit sub PCB A8P Defective connection communication line between indoor and outdoor units Troubleshooting Return to normal YES...

Page 374: ...oting YES NO NO Is wiring passing through the current sensor T1A proper Insulation failure of compressor Insulation failure of component except compressor Pass proper wiring through the sensor Turn OF...

Page 375: ...f connector X101A Wiring disconnection Defective outdoor unit main PCB Troubleshooting NO YES YES Is the system reset to normal Is X101A connected The error is considered to have resulted from externa...

Page 376: ...nit main PCB A1P Momentary power failure Defective high pressure sensor Troubleshooting NO YES YES Replace the high pressure switch S1PH S2PH Remedy defective points YES Are the above 3 points OK Does...

Page 377: ...ctors that cause the high pressure to rise Connect the service checker and then compare the high pressure value measured by the service checker with the voltage measurement of the connector of the pre...

Page 378: ...and then restart the operation Is the stop valve open Open the stop valve Caution Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged Replace th...

Page 379: ...ifferential pressure 0 5 MPa 72 5 psi or more UVW connection error Defective inverter PCB Stop valve is not opened Troubleshooting Make proper wire connections Make proper wire connections NO NO NO NO...

Page 380: ...lure Check for the refrigerant system Quit work Pressure equalization failure may have occurred Check for the refrigerant system YES YES NO Replace the inverter PCB NO The error recurs at startup Cont...

Page 381: ...ystem will return an alarm if there is any operational unit other than that applicable to E6 or determine to be error if not Supposed Causes Defective compressor Defective high pressure sensor Defecti...

Page 382: ...54 CHECK 12 Refer to page 463 NO YES Are the high pressure and ow pressure checked by the service checker the same as the actual measured values of the high and low pressure sensors Replace the outdoo...

Page 383: ...ting There are foreign matter around the applicable fan Remove the foreign matter YES Check for the connections of all fan motor connectors NO Turn OFF the power supply and then wait for a period of 1...

Page 384: ...llic part is less than 1 M Replace the relevant fan motor M1F M2F YES NO YES Resistance between U V W phases of the fan motor power supply cable has lost balance or short circuit is caused between U V...

Page 385: ...ce and then turn it ON again Return to normal Investigate external causes other than failures e g noise YES NO Connector for the electronic expansion valve of the outdoor unit is connected Properly an...

Page 386: ...or harness of four way valve Defective four way valve Troubleshooting Caution Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged Is the four wa...

Page 387: ...Conditions When the evaporator is in a condenser like refrigerant state When the condenser is in an evaporator like refrigerant state Supposed Causes Defective high pressure sensor Defective low pres...

Page 388: ...the four way valve fixed correctly Firmly fix the coil NO YES Is the harness of the four way valve broken Replace the relevant coil and harness YES NO Are the high and low pressure sensors normal Rep...

Page 389: ...ing during cooling operation in the indoor unit When the flow direction of the refrigerant is cooling during heating operation in the indoor unit Supposed Causes Wrong wiring between Branch selector u...

Page 390: ...abnormally high i e 135 C 275 F or more When discharge pipe temperature sharply rises remains at 120 C 248 F or more for a period of consecutive 10 minutes When compressor surface temperature becomes...

Page 391: ...ssor surface temperature thermistors normal All thermistors are normal and temperature detection with the outdoor unit main PCB is also normal The discharge pipe temperature or compressor surface temp...

Page 392: ...art Error Decision Conditions When the following wet state continues for a period of 90 minutes an alert is issued An error is defined for 120 minutes Wet state in outdoor units When the following wet...

Page 393: ...O YES NO Replace the indoor unit electronic expansion valve Replace the relevant thermistor YES YES Caution Be sure to turn off the power switch before connecting or disconnecting connectors or parts...

Page 394: ...uses Refrigerant overcharged Disconnection of outdoor air thermistor Disconnection of heat exchanger deicer thermistor Disconnection of liquid pipe temperature thermistor Troubleshooting CHECK 11 Refe...

Page 395: ...ive PCB of Branch Selector unit Troubleshooting While in monitor mode identify an electronic expansion valve subject to the Error Code F9 1 Identify the electronic expansion valve coil to be checked b...

Page 396: ...ECK 18 Refer to page 470 Electronic expansion valve Sub code Electronic expansion valve EVH 01 Electronic expansion valve EVL 02 Electronic expansion valve EVSC 05 Model Electronic expansion valve to...

Page 397: ...rcuit in it Supposed Causes Defective connection of thermistor Defective thermistor Defective outdoor unit PCB Troubleshooting 1 Check the error code and sub code and replace the corresponding thermis...

Page 398: ...the PCBs is disabled while the compressor is not running Supposed Causes Defective connection of jumpers between PCB Defective outdoor unit main PCB A1P Defective inverter PCB Troubleshooting Check fo...

Page 399: ...r NO YES Replace the relevant fan motor M1F M2F NO YES Check for fan PCB applicable to the error code H7 while in monitor mode H7 21 23 Fan PCB M1F Master Sub H7 22 24 Fan PCB M2F Master Sub Replace t...

Page 400: ...K 12 Refer to page 463 Are the characteristics of the high pressure sensor normal Make a comparison between voltage characteristics and gauge pressure Replace the high pressure sensor S1NPH Replace th...

Page 401: ...2 Refer to page 463 Check 12 Are the characteristics of the low pressure sensor normal Make a comparison between voltage characteristics and gauge pressure Replace the low pressure sensor S1NPL Replac...

Page 402: ...value during the output of waveform before compressor startup Detect current value with the current sensor during synchronous operation for startup Error Decision Conditions When the overcurrent flow...

Page 403: ...ssor 100 k or more The error could have resulted from external factors other than failures e g external noise or thunder YES Replace the compressor and the inverter PCB together Replace the inverter P...

Page 404: ...cy detection circuit on the outdoor unit main PCB Supposed Causes Defective wiring Defective outdoor unit main PCB Troubleshooting Error recurs after turning OFF the power and ON again Any disconnecti...

Page 405: ...Code L4 Sub code 01 02 09 10 Method of Error Detection Detect temperature of power module of the inverter PCB Error Decision Conditions Thermistor located inside the power module of the inverter PCB f...

Page 406: ...ower supply voltage falls within 10 of the rated voltage Replace the inverter PCB Connect to power supply within 10 of the rated voltage NO YES Rectify troubles Normal Power OFF NO NO Check for the co...

Page 407: ...in plate not fixed with screws U0 error Defective fan PCB High outdoor air temperature Troubleshooting Continue operation Field factor Radiation fin temperature may have risen due to high outdoor air...

Page 408: ...ive inverter PCB Troubleshooting Power OFF Open the stop valve YES NO Is the stop valve open YES YES Are wiring and wire connections to the relevant compressor normal Rectify the wiring and wire conne...

Page 409: ...er OFF YES Restarting the system results in the recurrence of the error Continue operation Replace the compressor NO YES Replace the inverter PCB YES Restarting the system results in the recurrence of...

Page 410: ...voltage Troubleshooting Power OFF Open the stop valve YES NO Is the stop valve open YES YES Are wiring and wire connections to the relevant compressor normal Rectify the wiring and wire connections NO...

Page 411: ...compressor restart is below 0 2 MPa Continue operation Replace the compressor Connect to power supply within 10 of the rated voltage NO NO Pressure equalization failure Check the refrigerant system Po...

Page 412: ...oting YES NO NO Apply power and then restart operation NO Are the leads of the compressor disconnected Connect the leads of the compressor YES Is the insulation resistance of the relevant compressor 1...

Page 413: ...rant system NO Replace the inverter PCB NO YES NO The internal wiring of the compressor coil is defective Replace the compressor YES Is the insulation resistance of the relevant compressor 100 k or mo...

Page 414: ...ve outdoor unit main PCB transmission block Defective noise filter compressor or fan motor External factors e g noise Failure of inverter PCB or fan PCB Troubleshooting Does the inverter PCB part No m...

Page 415: ...Replace the inverter PCB NO NO YES The microcomputer normal monitor indication lamp green on the outdoor unit main PCB A1P is blinking Properly connect the connector NO YES Is the connector between th...

Page 416: ...ance through inverter PCB Error Decision Conditions When power supply voltage imbalance exceeds approximately 12 V Error is not decided while the unit operation is continued P1 will be displayed by pr...

Page 417: ...ion Results attached to spare part Hand the Notice of Inspection Results to user to ask him her to rectify the imbalance Be sure to explain user that power supply voltage imbalance will occur and Daik...

Page 418: ...unit operation is continued P4 will be displayed by pressing the inspection button Supposed Causes Defective radiation fin temperature thermistor Defective inverter PCB Defective compressor Defective...

Page 419: ...of the thermistor comes to a value equivalent to open or short circuit Supposed Causes Defective fan PCB Defective fan motor Troubleshooting The insulation resistance of the relevant fan motor is not...

Page 420: ...ield setting after replacing outdoor unit main PCB Troubleshooting Does the inverter PCB part No match that of the spare parts list Does the fan PCB part No match that of the spare parts list Has the...

Page 421: ...to page 450 CHECK 12 Refer to page 463 Is the low pressure 0 1 MPa 14 5 psi or less 1 Is the characteristics of low pressure sensor normal 2 Replace the low pressure sensor S1NPL Replace the outdoor u...

Page 422: ...open phase Defective outdoor unit main PCB A1P Power supply frequency issue Troubleshooting There is an open phase at the power supply T phase terminal section X1M of the outdoor unit Operation is nor...

Page 423: ...phase Defective inverter PCB Defective outdoor unit main PCB Defective compressor Defective main circuit wiring Defective fan motor Defective connection of signal cable Troubleshooting There are some...

Page 424: ...lace the inverter PCB If the inverter PCB gets severely damaged the compressor and the fan motor M1F M2F may have been damaged Replace the inverter PCB If the inverter PCB gets severely damaged check...

Page 425: ...b code and then go to the following Conduct the test operation The test operation has not been conducted U3 03 Check for the refrigerant piping and then conduct the test operation U3 04 Conduct the te...

Page 426: ...icrocomputer checks if transmission between indoor and outdoor units is normal Error Decision Conditions Transmission is not carried out normally for a certain amount of time Supposed Causes Open phas...

Page 427: ...14 1 OFF ON BLINK SEG1 SEG2 SEG3 1 2 Correct the voltage Replace the fuse Press and hold the RETURN BS3 button on the outdoor unit main PCB for a period of 5 seconds or more YES NO YES YES Replace the...

Page 428: ...ve PCB 2 Test operation was interrupted by the MODE BS1 button YES Check all indoor error indication NO Operate all indoor units YES Do all units display U9 Carry out the diagnosis again after a lapse...

Page 429: ...Main Sub setting Control by 2 remote controllers Main Sub setting of both remote controllers is set to Main All indoor unit control PCB microcomputer normal monitors blinking Resets normally when powe...

Page 430: ...nditions When transmission is not carried out normally for a certain amount of time Supposed Causes Connection error of transmission wirings between outdoor unit and external control adaptor for outdo...

Page 431: ...2 Transmission error when the external control adaptor is mounted Error code Sub code Error code Sub code Error code Sub code Error code Sub code Error code Sub code Error code Sub code Error code Su...

Page 432: ...tdoor unit Diagnosis Flowchart 1 Supply power to the outdoor unit Is power supplied to the outdoor unit Is the normal operation monitor LED on the outdoor unit main PCB blinking Is the normal operatio...

Page 433: ...he error recur when setting Cool Heat selection for the external control adaptor for outdoor unit to IND NO NO NO NO NO NO NO NO YES YES YES YES YES YES YES YES Replace the outdoor unit main PCB A1P R...

Page 434: ...and Sub units Error code Sub code U7 03 Disconnect the outdoor unit multi transmission wirings and then reset the power supply Replace the outdoor unit main PCB A1P YES NO Diagnosis Flowchart 4 Multi...

Page 435: ...rings and then reset the power supply Replace the outdoor unit main PCB A1P Replace the outdoor unit main PCB A1P Rectify the error in the connection of transmission wirings and then reset the power s...

Page 436: ...ror between main and sub remote controller Connection between sub remote controllers Defective remote controller PCB Troubleshooting Refer to page 126 for Main Sub setting Main Sub setting of both rem...

Page 437: ...nits Defective electronic expansion valve of other indoor unit Defective indoor unit control PCB of other indoor unit Improper connection of transmission wiring between indoor and outdoor unit Multi t...

Page 438: ...ween indoor Branch Selector and outdoor units The number of indoor units is out of the allowable range Signal transmission between indoor Branch Selector and outdoor units is abnormal Error Decision C...

Page 439: ...A 27 Go to Diagnosis Flowchart 8 Connection of incorrect Branch Selector unit Error code Sub code UA 28 Go to Diagnosis Flowchart 10 DIP switch setting error of Multi Branch Selector unit Error code S...

Page 440: ...efer to Incorrect electric heater capacity setting troubleshooting 1 Excess indoor units are connected Check for the connection to connect the proper number of indoor units NO Diagnosis Flowchart 1 UA...

Page 441: ...pare PCB made Diagnosis Flowchart 4 NO Correct the wirings If no defect is found in the wirings replace the outdoor unit main PCB A1P YES NO YES NO YES Error in the system design Replace with a single...

Page 442: ...P NO Correct the wiring Diagnosis Flowchart 5 Is the wiring between outdoor unit and Branch Selector unit correct Error code Sub code UA 25 YES Replace the relevant Branch Selector unit PCB NO Correct...

Page 443: ...NO Replace the indoor unit PCB or the Branch Selector unit PCB Is the Branch Selector unit PCB correct Error code Sub code UA 27 YES Replace the outdoor unit main PCB A1P NO Connect the correct model...

Page 444: ...he RETURN BS3 button of the outdoor unit main PCB A1P for 5 seconds or more If the error is not cleared after 30 minutes have elapsed replace the Multi Branch Selector unit PCB NO After turning OFF th...

Page 445: ...rnace and other indoor units other than CXTQ TA are connected Error Decision Conditions Check that two or more CXTQ TA gas furnace and other indoor units other than CXTQ TA are not connected Operation...

Page 446: ...a non 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 co...

Page 447: ...that of its own on any other indoor unit Error Decision Conditions The error decision is made as soon as the abnormality aforementioned is detected Supposed Causes Address duplication of centralized...

Page 448: ...rocomputer checks if transmission between indoor unit and centralized controller is normal Error Decision Conditions When transmission is not carried out normally for a certain amount of time Supposed...

Page 449: ...No for indoor unit changed Make correct setting of the central control group No Check outdoor units to which the refrigerant system is connected Check whether or not there are no problems with the tra...

Page 450: ...e Replace the centralized controller Centralized controller Normal OK Correct the wiring NG A NO Correct the wiring NG YES YES Disconnect the transmission wiring of the main centralized controller and...

Page 451: ...ration Supposed Causes Improper connection of transmission wiring between indoor outdoor units and outdoor outdoor units Failure to execute check operation Defective indoor unit PCB Stop valve is not...

Page 452: ...ss function Automatic address refers to the automatic designated address of indoor unit and outdoor unit when connected to the power after installation or wiring replacement with the RETURN BS3 button...

Page 453: ...or units in the system NO After fixing the incorrect wiring press the RETURN BS3 button on the outdoor unit main PCB for 5 seconds The unit will not run for up to 12 minutes NO NO Install the DIII NET...

Page 454: ...f the gas furnace is turned ON after a certain period of time has been elapsed after the power of the CXTQ TA was turned ON Disconnection of the communication wire between the CXTQ TA and the gas furn...

Page 455: ...r communication with the gas furnace completes and after elapsing 4 minutes after the power is turned ON Two or more gas furnaces are detected Any unit other than the gas furnace is detected Supposed...

Page 456: ...denser Mixingofnon condensablegas Decreased airflow rate Decreased fan output Defective fan motor Defective outdoor unit main PCB Including capacity setting High airflow passage resistance Dirty filte...

Page 457: ...ty setting properly made Is the air filter clogged Is there any obstacle in the airflow passage Defective outdoor unit main PCB Including capacity setting High airflow passage resistance Dirty filter...

Page 458: ...Check SiUS372201EB 451 Part 6 Service Diagnosis Reference Reference CHECK 7 Refer to page 457 CHECK 8 Refer to page 458...

Page 459: ...the outdoor unit electronic expansion valve excessively throttled 3 Temperature increase of discharge pipe Defective injection electronic expansion valve Are the coil resistance and insulation normal...

Page 460: ...superheat operation 1 Suction gas superheating degree 10 C 18 F and over 2 Discharge gas superheating degree 45 C 81 F and over except immediately after compressor starts up or is running under dropp...

Page 461: ...or more make measurement of resistance No Measuring point When using the analog type of multimeter make measurement in resistance measurement mode in the x1 k range When using the digital type of mult...

Page 462: ...t 6 Service Diagnosis REYQ72AATJ REYQ144 168AATJ M2C REYQ192 216 240AATJ M1C M2C REYQ AAYD 9 5 9 5 36 3 3 5 8 5 3 3 1 3 8 9 9 7 7 7 1 W V U P2 N32 230 V 160P 9 5 9 5 36 3 3 5 8 5 3 3 1 3 8 9 9 7 7 7 1...

Page 463: ...e Low pressure Frequency High pressure gradually rises with increase in frequency Subcooling degree becomes higher Liquid connection pipe temperature lowers Low pressure rises due to decreased compres...

Page 464: ...minimum 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 c...

Page 465: ...r less for a period of 1 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 refrigerant leakage may hav...

Page 466: ...tor Indoor heat exchanger gas thermistor Discharge air thermistor R1T R2T R3T R4T FXFQ AA Type C Type A Type A FXFQ T Type J FXZQ TA Type B Type A FXZQ TB FXUQ P Type C FXUQ PA FXEQ P Type B Type J FX...

Page 467: ...ght lower gas pipe thermistor R10T Receiver inlet thermistor R11T Subcooling heat exchanger liquid pipe thermistor R12T Subcooling heat exchanger gas pipe thermistor R14T Subcooling injection thermist...

Page 468: ...5 41 51 05 50 95 51 07 10 50 39 91 39 92 39 97 15 59 31 44 31 50 31 51 20 68 24 95 25 02 25 02 25 77 19 94 20 00 20 00 30 86 16 04 16 10 16 10 35 95 12 99 13 04 13 04 40 104 10 58 10 63 10 63 45 113...

Page 469: ...20 14 20 00 30 86 165 7 16 23 16 09 35 95 134 3 13 16 13 02 40 104 109 4 10 73 10 60 45 113 89 58 8 800 8 685 50 122 73 73 7 255 7 153 55 131 60 98 6 012 5 923 60 140 50 67 5 010 4 929 65 149 42 29 4...

Page 470: ...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 15 3 0 4 15 3 0 1 7 3 0 1 7 3 0 1 MPa 145 ps...

Page 471: ...t D between the outdoor outdoor unit terminal of the outdoor unit C in the order described thus identifying the place with continuity If the place with continuity can be identified there may be broken...

Page 472: ...r continuity If there is continuity the indoor outdoor unit transmission has no broken wires in it Indoor outdoor unit transmission wiring 2 Short circuit between the indoor outdoor unit terminal part...

Page 473: ...check that the values are balanced and there is no short circuiting while connector or relay connector is disconnected FXSQ54TA FXSQ54TB FXMQ15 54PB FXMQ30 54TB Remove the X1A connector from the fan...

Page 474: ...d check that each phase are balanced within a permissible dispersion range of 20 Outdoor Unit 1 Turn OFF the power supply 2 Measure the resistance between phases of U V W at the motor side connectors...

Page 475: ...B FXUQ P FXSQ05 48TA FXSQ05 48TB FXMQ07 12PB FXMQ15 24TB FXAQ P FXEQ P FXUQ PA Measuring points Judgment criteria 1 4 1 or more 2 4 1 or more 3 4 1 or more 7 4 1 or more White Orange Brown Blue Red 1...

Page 476: ...A Measuring points Judgment criteria 5 4 1 or more 5 3 1 or more 5 2 1 or more 5 1 1 or more Measuring points Judgment criteria 5 4 1 or more 5 3 1 or more 5 2 1 or more 5 1 1 or more Gray 5 Pink 4 Or...

Page 477: ...ed in the table below Determine the type according to the connector wire color and measure the resistance Outdoor Unit Y1E Y2E Y4E Y5E Y3E REYQ72AA Y3E Except REYQ72AA Y6E Y7E Y8E Measuring points Jud...

Page 478: ...Q P FXDQ M FXMQ M FXHQ M FXLQ M FXNQ M FXMQ MF Measuring points Judgment criteria 1 6 35 55 2 6 3 6 4 6 Measuring points Judgment criteria 1 3 300 1 5 150 2 4 300 2 6 150 Measuring points Judgment cri...

Page 479: ...eck Part 6 Service Diagnosis 472 FXMQ TA Measuring points Judgment criteria 1 2 No continuity 1 3 300 1 6 150 2 4 300 2 6 150 White 1 Red 6 5 Blue 4 Orange 3 Yellow 2 White 1 Red 6 Orange 3 1 3 Yellow...

Page 480: ...ellow Red Orange Red Blue Red Yellow Blue 2 4 White Red Orange 1 3 M White 1 Yellow 2 Orange 3 Blue 4 5 Red 6 White 1 Yellow 2 Orange 3 Blue 4 Red 5 Measuring points Judgment criteria White Red 120 18...

Page 481: ...rs Repair or replace as needed 4 Check blower wheel Confirm wheel is properly seated on motor shaft Set screw must be on shaft flat and torqued to 165 in lbs minimum Confirm wheel has no broken or loo...

Page 482: ...ce motor control end bell verify motor refer to Motor Checks on page 477 9 Depress the orange power button to turn off motor 10 Disconnect power Disconnect diagnostic tool 11 Reconnect the 4 wire harn...

Page 483: ...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 484: ...or modular blower 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 485: ...2201EB Part 7 Appendix 478 1 Wiring Diagrams 479 1 1 Outdoor Unit 479 1 2 Branch Selector Unit 481 1 3 Indoor Unit 490 1 4 Air Treatment Equipment 512 2 Electrical Component Box Removal 515 Part 7 App...

Page 486: ...Wiring Diagrams SiUS372201EB 479 Part 7 Appendix 1 Wiring Diagrams 1 1 Outdoor Unit REYQ72 96 120 144 168 192 216 240AATJA REYQ72 96 120 144 168 192 216 240AATJB C 2D130901G...

Page 487: ...SiUS372201EB Wiring Diagrams Part 7 Appendix 480 REYQ72 96 120 144 168 192 216 240AAYDA REYQ72 96 120 144 168 192 216 240AAYDB C 2D131905H...

Page 488: ...Wiring Diagrams SiUS372201EB 481 Part 7 Appendix 1 2 Branch Selector Unit 1 2 1 Single Branch Selector Unit BSQ36 60 96TVJ 3D089521B...

Page 489: ...6 7 211 725 3725 25 08 7 7 1 17 0 6 0 1 7521 3 16 21 9 9 68 7 21 3 127 6 7 6 5 1 5 0 33 6 72 6 81 7 21 7 50 1 2 211 725 5 1 3527 7 9 5281 1 86 1 7 22 7 6 725 237 21 6625 211 7 7 72 7 50 1 6 1 21 0 6...

Page 490: ...Wiring Diagrams SiUS372201EB 483 Part 7 Appendix 1 2 2 Multi Branch Selector Unit Standard Series BS4Q54TVJ 3D089123B...

Page 491: ...25 6 81 7 21 7 0 5 6 1 7 6 5 0 1 7 7 50 1 2 211 725 5 1 3527 7 9 5281 12 6 66 5281 6 25 5 1 25 7 7 50 1 2 0 0 23 5 7 21 5 5 72 7 167 7 21 0 18 77 72 7 81 7 7 725 6 77 1 2 3 6 7 6 6 6 6 6 2 2 6 25 6 7...

Page 492: ...Wiring Diagrams SiUS372201EB 485 Part 7 Appendix BS6 8Q54TVJ 2D089122B...

Page 493: ...SiUS372201EB Wiring Diagrams Part 7 Appendix 486 BS10 12Q54TVJ 2D089121B...

Page 494: ...21 9 5 0 31 127 6 4 7 9 127 6 0 0 0 51 0 0 6 81 7 12 6 7 5 3 3 0 127 3 3 25 7521 3 16 21 9 9 68 22 51 0 21 2 7521 3 16 21 9 9 3 3 6 7 0 7 50 1 2 32 5 6833 7521 3 16 21 9 9 68 7 21 7521 3 16 21 9 9 68...

Page 495: ...12 6 66 5281 25 5 1 25 7 7 50 1 2 0 0 23 5 7 21 5 5 72 7 167 7 21 0 18 77 72 7 81 7 7 725 6 77 1 2 3 6 7 6 6 6 6 6 2 2 6 25 7 6 77 1 0 7 2 2 3 6 7 6 6 6 5 5 72 7 167 7 21 0 18 2 256 5 5 8 8 51 5 1 31...

Page 496: ...9 68 7 21 51 6 81 7 7521 3 16 21 9 9 68 7 21 21 2 0 7 36 25 21 0 51 0 6 72 0 3 127 1 225 81 7 3 3 127 36 127 0 5 7 81 7 5 72 3 127 0 21 2 0 3 3 3 25 72 3 7521 3 16 21 9 9 3 3 6 21 7521 3 16 21 9 9 68...

Page 497: ...725 855 17 6 1625 32 5 02 8 211 725 3725 25 5 1 211 725 32 5 6833 25 3725 211 725 25 237 21 6625 211 725 3725 25 08 7 7 1 17 5 7 5 7 7 127 7 50 1 2 211 725 5 1 3527 7 9 5281 12 6 66 5281 1 6 2 86 1 17...

Page 498: ...3 3 6 5 21 7 21 5 5811 1 7 1 0 6 6 867 6 1625 81 7 6 1250 6 257 6 1 1 7 21 81 7 7 7 5 1 1 5811 1 6 1 0 3 02725 03 5 386 87721 5 6 7 2 1250 7 1 7 21 386 87721 7 5 872 1 1 7 67 1 725 03 5 1 6 2 0 7 0 77...

Page 499: ...SiUS372201EB Wiring Diagrams Part 7 Appendix 492 FXFQ07 09 12 15 18 24 30 36 48TVJU 3D086460B...

Page 500: ...Wiring Diagrams SiUS372201EB 493 Part 7 Appendix BYCQ125BGW1 Self Cleaning Decoration Panel for FXFQ TVJU 3D076375A...

Page 501: ...SiUS372201EB Wiring Diagrams Part 7 Appendix 494 FXZQ05 07 09 12 15 18TAVJU 3D110443A...

Page 502: ...5 6 1 5 6 725 6 7 0 1 68 6 725 6 7 5 66 5 66 6 7 35 17 5 8 7 2 5 35 17 5 8 7 2 5 35 17 5 8 7 2 5 211 725 5 66 5 027 21752 5 211 725 3725 25 5 1 211 725 32 5 6833 25 3725 211 725 6 1625 7 32 5 6833 9 9...

Page 503: ...NG CENTRAL REMOTE CONTROLLER CONNECT IT TO THE UNIT IN ACCORDANCE WITH THE ATTACHED INSTALLATION MANUAL 3 IN CASE OF MAIN SUB CHANGEOVER SEE THE INSTALLATION MANUAL ATTACHED TO REMOTE CONTROLLER 4 SYM...

Page 504: ...0 7 50 1 2 21752 5 6 1 03 55 7 25 5 7 5 7 8 3 06 02725 1 225 1 7 50 6725 5 127 3 35 17 5 8 7 2 5 7 7 50 1 2 32 5 6833 02725 5 1 3803 3 0 6 7 0 6 0 6 8 5 7 06 32 5 6833 9 7 50 6725 2 5 5 027 21752 5 23...

Page 505: ...SiUS372201EB Wiring Diagrams Part 7 Appendix 498 FXEQ07 09 12 15 18 24PVJU 3D098557A...

Page 506: ...Wiring Diagrams SiUS372201EB 499 Part 7 Appendix FXDQ07 09 12 18 24MVJU C 3D050501C...

Page 507: ...SiUS372201EB Wiring Diagrams Part 7 Appendix 500 FXSQ05 07 09 12 15 18 24 30 36 48 54TAVJU C 3D110467C...

Page 508: ...8 77 72 5 027 21752 5 2 256 5 5 8 8 7 7 2 25 25 1 51 5 1 51 52 1 5 5 31 3 1 127 6 7 50 1 2 211 725 5 1 3527 7 9 5281 6 5 12 6 66 5281 1 6 86 1 175 5 027 21752 5 211 7 7 72 7 81 7 1 25 1 7 7 77 167 7 2...

Page 509: ...SiUS372201EB Wiring Diagrams Part 7 Appendix 502 FXMQ07 09 12 15 18 24 30 36 48 54PBVJU 3D093209B...

Page 510: ...2 5 027 21752 5 2 256 5 5 8 8 7 7 2 25 25 1 51 5 1 51 52 1 5 5 31 3 1 127 6 7 50 1 2 211 725 5 1 3527 7 9 5281 6 5 12 6 66 5281 1 6 86 1 175 5 027 21752 5 211 7 7 72 7 81 7 1 25 1 7 7 77 167 7 21 0 18...

Page 511: ...DIAGRAM OF THIS ACCESSORY 3 CAN BE USED FOR FIRE ALARM INPUT ONLY SEE INSTALLATION MANUAL FOR MORE INFORMATION 4 X15A X25A ARE CONNECTED WHEN THE DRAIN PUMP KIT IS BEING USED BEFORE INSTALLING OF DRA...

Page 512: ...INAL 2 FIELD WIRING 3 IN CASE USING CENTRAL REMOTE CONTROLLER CONNECT IT TO THE UNIT IN ACCORDANCE WITH THE ATTACHED INSTALLATION MANUAL 4 WHEN CONNECTING THE INPUT WIRES FROM OUTSIDE FORCED OFF OR ON...

Page 513: ...SiUS372201EB Wiring Diagrams Part 7 Appendix 506 FXHQ12 24 36MVJU 3D048116C...

Page 514: ...Wiring Diagrams SiUS372201EB 507 Part 7 Appendix FXAQ07 09 12 18 24PVJU 3D075354F...

Page 515: ...ONNECT IT TO THE UNIT IN ACCORDANCE WITH THE ATTACHED INSTALLATION MANUAL 4 WHEN CONNECTING THE INPUT WIRES FROM OUTSIDE FORCED OFF OR ON OFF CONTROL OPERATION CAN BE SELECTED BY REMOTE CONTROLLER IN...

Page 516: ...FIELD HIGH VOLTAGE HIGH VOLTAGE FIELD JUNCTION TERMINAL PLUG CONNECTION EQUIPMENT GND FIELD GROUND 0140A01285 A X1A X3A X38A BS1 X12A X13A HAP X8A INDOOR UNIT PCB THERMISTOR HEAT EXCHANGER 1 2 MPU MU...

Page 517: ...OW VOLTAGE LOW VOLTAGE FIELD HIGH VOLTAGE HIGH VOLTAGE FIELD JUNCTION TERMINAL PLUG CONNECTION EQUIPMENT GND FIELD GROUND 0140A01387 A X1A X3A X38A BS1 X12A X13A HAP X8A INDOOR UNIT PCB THERMISTOR HEA...

Page 518: ...CTION TERMINAL PLUG CONNECTION EQUIPMENT GND FIELD GROUND X3A X38A BS1 X12A X13A HAP X8A INDOOR UNIT PCB THERMISTOR HEAT EXCHANGER 1 2 MPU EEV COIL M K3R TB6 TB8 LEARN PS TB5 TB4 ACC OUT RELAY OUT FLA...

Page 519: ...SiUS372201EB Wiring Diagrams Part 7 Appendix 512 1 4 Air Treatment Equipment 1 4 1 Outdoor Air Processing Unit FXMQ48 72 96MFVJU 3D065426D...

Page 520: ...Wiring Diagrams SiUS372201EB 513 Part 7 Appendix 1 4 2 Energy Recovery Ventilator VAM Series VAM300 470 600GVJU 3D073269D...

Page 521: ...SiUS372201EB Wiring Diagrams Part 7 Appendix 514 VAM1200GVJU 3D073270D...

Page 522: ...Electrical Component Box Removal SiUS372201EB 515 Part 7 Appendix 2 Electrical Component Box Removal 1 Remove the screws 2 Lift the mounting plate up and fasten the hook Screw 3...

Page 523: ...SiUS372201EB Electrical Component Box Removal Part 7 Appendix 516 3 Remove the screws Screw 5 Screw 3 2 compressor Type 1 compressor Type...

Page 524: ...Component Box Removal SiUS372201EB 517 Part 7 Appendix 4 Pull out the refrigerant jacket Axis of rotation max 110 Do not open more than 110 The piping might crack when coming in contact with surround...

Page 525: ...SiUS372201EB Electrical Component Box Removal Part 7 Appendix 518 5 Remove the screws 6 Remove the electrical component box Screw 8...

Page 526: ...ocal 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 electrica...

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