Alarm Code List For Chiller; General Alarms Code List - Hitachi HC-A32MB Installations- Und Betriebshandbuch

6.3 Alarm code list for CHILLER

6.3.1

General alarms code list

(ERROR_CODE_CH; see 6.2 - address 16)
CHILLER alarm Description
7SEG1 7SEG2
Failure of Water Inlet Temperature Thermistor
11 11
Failure of Water Outlet Temperature Thermistor
12 12
(only for single cycle unit)
Failure of Ambient Temperature Thermistor (open/short)
22 22
No Feedback Signal from Water Pump
5 5
Activation of Freeze Protection Control (only for single cycle unit)
13 13
Alarm of Water Failure (Differential Pressure Switch
6 6
or Flow Switch Option)-Condenser
Alarm of Water Failure (Differential Pressure Switch
6 6
or Flow Switch Option)-Evaporator
Activation of Thermostat for excessively High Water Temperature
14 14
(Only single cycle units)
Activation of additional protection device
 
Phase Abnormally
05 05
Error Communication between Control PCB (PCBC1, PCBC2)
 
Error communication between Chiller and Remote Controller (H-LINK)
03 03
Error Communication between Expansion Valve PCB and Control PCB
U U
Incorrect Operation
40 40
18
PMML0191A rev.0 - 04/2009
Operation
H-LINK
Code
20
21
24
26
27
28
29
30
31
32
33
34 - (A/W/CL)G(1)
35 - (A/W/CL)G2
36
40~45,
47,47,54