Daikin RXYQ10T7Y1B, Инструкция по установке и эксплуатации, Страница: 32 / 44

8 Troubleshooting
Installation and operation manual
32
RYYQ+RYMQ+RXYQ8~20T7Y1B
VRV IV system air conditioner
4P370473-1C – 2016.07
Main code Sub code Cause Solution
Master Slave 1 Slave 2
Ambient temperature sensor
malfunction (R1T) - A1P (X18A) Check connection on PCB or actuator.
Discharge temperature sensor
malfunction (R21T): open circuit - A1P
(X29A) Check connection on PCB or actuator.
Discharge temperature sensor
malfunction (R21T): short circuit - A1P
(X29A) Check connection on PCB or actuator.
Discharge temperature sensor
malfunction (R22T): open circuit - A1P
(X29A) Check connection on PCB or actuator.
Discharge temperature sensor
malfunction (R22T): short circuit - A1P
(X29A) Check connection on PCB or actuator.
Compressor casing temperature
sensor malfunction (R8T): open circuit
- A1P (X29A) Check connection on PCB or actuator.
Compressor casing temperature
sensor malfunction (R8T): short circuit
- A1P (X29A) Check connection on PCB or actuator.
Suction temperature sensor
malfunction (R3T) - A1P (X30A) Check connection on PCB or actuator.
De-icing temperature sensor
malfunction (R7T) - A1P (X30A) Check connection on PCB or actuator
Liquid temperature sensor (after
subcool HE) malfunction (R5T) - A1P
(X30A) Check connection on PCB or actuator.
Liquid temperature sensor (coil)
malfunction (R4T) - A1P (X30A) Check connection on PCB or actuator.
Gas temperature sensor (after subcool
HE) malfunction (R6T) - A1P (X30A) Check connection on PCB or actuator.
High pressure sensor malfunction
(S1NPH): open circuit - A1P (X32A) Check connection on PCB or actuator.
High pressure sensor malfunction
(S1NPH): short circuit - A1P (X32A) Check connection on PCB or actuator.
Low pressure sensor malfunction
(S1NPL): open circuit - A1P (X31A) Check connection on PCB or actuator.
Low pressure sensor malfunction
(S1NPL): short circuit - A1P (X31A) Check connection on PCB or actuator.
Transmission outdoor unit - inverter:
INV1 transmission trouble - A1P
(X20A, X28A, X40A) Check connection.
Transmission outdoor unit - inverter:
FAN1 transmission trouble - A1P
(X20A, X28A, X40A) Check connection.
Transmission outdoor unit - inverter:
FAN2 transmission trouble - A1P
(X20A, X28A, X40A) Check connection.
Transmission outdoor unit - inverter:
INV2 transmission trouble - A1P
(X20A, X28A, X40A) Check connection.
INV1 unbalanced power supply
voltage Check if power supply is within range.
INV2 unbalanced power supply
voltage Check if power supply is within range.
Reversed power supply phase
malfunction Correct phase order.
Reversed power supply phase
malfunction Correct phase order.