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3.9.2.4 Alarm list during PTI (Pre-Trip Inspection)
The alarm during automatic PTI are concerned with PTI inspection items in addition to those during
normal operation.
The alarms at automatic PTI are indicated in J ※※※., being separated from those during normal
operation.
There are some alarms which are not displayed on the control panel, however, they can be checked
referring to the PTI report.
P00 Basic data No indication Check basic-data
P02 All sensor
Same as normal operation
Check basic-data
P04 Power supply No indication Check basic-data
P05 Starting J051 Compressor malfunction
P06 HPS J061 Abnormal OFF value
′′
J062 Not recovered (Not reset)
′′
J064
High pressure does not rise.
′′
J065
High pressure does not drop.
P08 Pump-down J081 Long pump-down
P10 Liquid solenoid valve J101 Valve leakage
P12 RS, SS accuracy J121 Sensor deterioration
P14 HPT, LPT accuracy J141 Sensor deterioration
P16 Evaporator fan motor J161
Evaporator fan motor malfunction
P20 Economizer solenoid valve J201
Economizer solenoid valve malfunction
P22
Discharge gas by-pass solenoid valve
J221
Discharge gas by-pass solenoid valve malfunction
P24 Defrost solenoid valve J241
Defrost solenoid valve malfunction
P26 Operation No indication
Judged with P28
P28
Suction modulating valve
J281
Suction modulating valve does not activate
P29 Electronic expansion valve J291
Long pump-down
P30 Injection solenoid valve J301
Injection solenoid valve malfunction
P32
Hot-gas solenoid valve
J321
Hot-gas solenoid valve malfunction
Reheat coil solenoid valve
J322
Reheat coil solenoid valve malfunction
P50 Pull-down cooling capacity J501
Out of ambient temperature conditions
P50 0˚C control J502 Long pull-down time
P60 0˚C control No indication
P70 Defrosting J701 Out of starting conditions
J702 Long defrosting time
P80 Pull-down cooling capacity No indication
P90 –18˚C control J901 Long pull-down time
Check NO.
(LED display)
Alarm Indication
(LED display)
Alarm content S.PTI F.PTI RemarksCheck content
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