Hitachi SAMURAI Series Service Manual page 105
Condenserless water chillers
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Also See for SAMURAI Series:
- Service manual (174 pages) ,
- Service manual (140 pages) ,
- Manual (118 pages)
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4. Troubleshooting
Troubleshooting by alarm code
C1-h1
Alarm code
Alarm stop reason
Discharge pressure (Pd) becomes higher than 1.92MPa for more than 10 seconds. (Enabled for electronic control)
N O T E
Causes alarm stop with 3 occurrences in 30 minutes. Retry control is performed until the second one. (Compressor
stops, and restarts automatically after 3 minutes)
Retry indication
LCD: By touching "Inspection", "Pd Retry" is shown in "No.1 Cycle".
Retry code
C1-P2
PCB monitoring position
PCBd (I/O PCB) CN31PD (Discharge pressure sensor)
C1-1
Alarm code
Alarm stop reason
Suction pressure (Ps) becomes lower than 0.01MPa for more than 3 seconds. (Enabled for electronic control)Alternatively,
interruption of PCN205 short line.
PCB monitoring position
PCBd (I/O PCB) CN32PS (Suction pressure sensor), PCN205 (Short line)
98
SMGB0097 rev.0 - 07/2015
Discharge pressure over-increase
Low pressure interruption device
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