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6-5
Symptom
Checkpoint
Remedy
Cause
Compressor internal
leak
The high
pressure is
excessively
high
Solenoid valve
internal leak
Reverse rotation of
condenser fan
・
Ambient
temperature is
high
・
Short circuit
・
Is the condenser
water-cooled?
・
Low water level
・
Water
temperature is
high
Clogged heat
exchanger of
condenser
・
Entering air
・
Overcharge
・
Wrong refrigerant
type
Check for
leak from solenoid
valve during pull-down. Is
the temperature in the piping
on the BSV, HSV,
and DSV outlet
side high?
Does the condenser
fan rotate reverse?
Leak from solenoid valve
⇒
Replace the solenoid valve
BSV: Discharged gas bypass solenoid valve
HSV: Hot gas solenoid valve
DSV: Defrost solenoid valve
Check the wiring on secondary side
of solenoid contactor for condenser fan
Is the discharge air
temperature at condenser
50˚C or higher?
Out of operation range
Restore short circuit at discharge air
Is the condenser water-cooled?
Visually check for clog
and dirt at the fin of air
cooled condenser
Clogged
⇒
cleaning
Check for entering of air
referring to clause 4.1.4 (2)
Trap of air,
wrong
refrigerant
type
⇒
Replace the
refrigerant
Overcharge
Entering of air,
wrong
refrigerant
type
⇒
Replace the
refrigerant
Check for leak from
the solenoid valve
S-PTI alarm J101?
(P10)
Faulty compressor
⇒
Replace the compressor
Overcharge
⇒
Replace the refrigerant
Water cooling: Water temperature is high, water cooled condenser is dirty
⇒
Check the facility, or clean or
replace the water cooled condenser
Is the water piping
valve fully open?
YES
Shortage of water volume
⇒
Check the facility
Is the HPS operated?
YES
NO
NO
Fully open the valve
YES
NO
YES(Reverse rotation)
NO(Normal rotation)
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
Ⅲ
Inside temperature does not drop
06̲LXE10E100以降(1-26)̲E.qx 08.8.13 10:35 AM ページ 6-5
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