Haier HCFU-18CF03 Service Manual page 65

9.2 Defrost operation flow chart
Condition
for
or
compress
OFF
OFF
compressor
Turn off
4-way value
Compressor
ON
B
65
Commercial Air Conditioner
Come to defrost
Compressor
ON
E-Heat off for 30s?
Return
Turn off compressor
outdoor fun
Turn off for
55s?
Return
Return
Open outdoor fun
Operation indoor
fun motor
4-way value
Return
Clear the sign of
Model: HCFU-18/28CF03
HCFU-18/28HF03
Compressor
off or 55s?
ON
Compressor
ON ?
defrosts
Return
Return
Return