Daikin LXE10E-A Service Manual page 147

https://daikin-p.ru
Symptom
The high
pressure is Solenoid valve
excessively internal leak
high
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
Compressor internal
leak
Cause
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?
Is the discharge air
temperature at condenser
50˚C or higher?
Is the condenser water-cooled?
Visually check for clog
and dirt at the fin of air
cooled condenser
Check for entering of air
referring to clause 4.1.4 (2)
Check for leak from
the solenoid valve
S-PTI alarm J101?
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
6-5
Checkpoint
YES
Leak from solenoid valve
⇒Replace the solenoid valve
BSV: Discharged gas bypass solenoid valve
HSV: Hot gas solenoid valve
NO
DSV: Defrost solenoid valve
YES(Reverse rotation)
Check the wiring on secondary side
of solenoid contactor for condenser fan
NO(Normal rotation)
YES
Out of operation range
Restore short circuit at discharge air
NO
YES
NO
Is the water piping
valve fully open?
YES
Clogged
⇒cleaning
Fully open the valve
NO
YES
Is the HPS operated?
NO
YES
Faulty compressor
⇒Replace the compressor
(P10)
NO
Remedy
YES
Low water level
⇒Check the facility
NO
YES
Overcharge
Entering of air,
wrong
refrigerant
type
⇒Replace the
refrigerant
NO
Trap of air,
wrong
refrigerant
type
⇒Replace the
refrigerant