Hitachi PSC-A1T Technical Catalogue

4 Individual remote controls
PC-ART
TCGB0106 rev.0 - 12/2014
155
4
(continued from the previous page)
Step
No.
Action required
5
After 5 seconds (maximum 30s in the event of a transmission failure between the indoor and outdoor units):
The display will indicate a maximum of 3 types of FAULTS.
Types of abnormal condition
Abnormal operation condition (1)
After 1 second
Abnormal operation condition (2)
After 1 second
Abnormal operation condition (3)
Codes:
Indica-
tion
Condition
00
Normal
Abnormal condition (open circuit, short-circuit, etc.) on a circuit for:
01
Air inlet temperature thermistor
Indoor unit PCB
02
Discharge air temperature thermistor
03
Liquid piping temperature thermistor
04
Abnormal remote thermistor
05
Liquid piping temperature thermistor
06
Remote sensor
08
Transmission from central station
0A
EEPROM
0b
Zero-cross input fault
EE
Transmission from indoor units during check
07
Transmission from outdoor unit
Outdoor unit PCB
F4
Fan inlet internal thermostat fault
F5
PSW input fault
F6
PSH protection signal detection circuit
F7
Phase detection
F8
Transmission from inverter
FA
High pressure sensor
Fb
Discharge gas temperature thermistor of the compressor
FC
Low pressure sensor
Fd
Heat exchanger evaporation temperature thermistor
FF
Ambient air temperature thermistor
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Hitachi PSC-A1T Specifications

General

Brand	Hitachi
Model	PSC-A1T
Category	Controller
Language	English