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2.5.3 Defrosting mode
Start defrosting
Is terminating
condition OK?
●
Defrost lamp (red) ON
●
Pump down
Defrosting range
Defrosting lamp (red) OFF
Return to frozen or chilled operation
Evaporator fan On after delay of 60 seconds
●
Compressor
ON
●
Evaporator fan
OFF
●
Condenser fan
ON/OFF
●
Defrosting solenoid valve ON
●
Hot gas solenoid valve ON
No
Yes
Yes
Component name
Pump down
Defrosting
Compressor
CC
ON
ON
Evaporator fan. High speed
EFH
OFF
OFF
Evaporator fan. Low speed
EFL
Condenser fan
CF
ON
ON/OFF
※
2
Liquid solenoid valve
LSV
OFF
OFF
Economizer solenoid valve
ESV
ON
OFF
Injection solenoid valve
ISV
OFF
ON/OFF
※
1
Hot-gas solenoid valve
HSV
OFF
ON
Defrost solenoid valve
DSV
OFF
ON
Discharge gas by-pass solenoid valve
BSV
OFF
OFF
Reheat solenoid valve
RSV
OFF
ON/OFF
※
3
Suction modulating valve
SMV
100%
100%
Electronic expansion valve
EV
48~420pls (11~100%)
0pls (0%)
Operation of magnetic contactor and solenoid valve
Note)
※
1: Charging control
※
2: Release control
※
3: RSV:ON EOS>15˚C
Magnetic
contactor
Solenoid
valve
02̲LXE10E100以降(16-28)̲E.qx 08.8.13 4:40 PM ページ 2-21
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