Haier HBU-18CF03 - Page 69

Commercial Air Conditioner Model: HBU-18CF03
HDU-42CF03/H HPU-42HF03
69
Return
Return
9.2 Defrost operation flow chart
Return
Condition
for
compress
or
OFF
OFF
compressor
Open outdoor fun
Compressor
off or 55s?
4-way value
ON
Compressor
ON ?
Clear the sign of
defrosts
Return
Operation indoor
fun motor
Return
Come to defrost
Compressor
ON
E-Heat off for 30s?
Turn off compressor
outdoor fun
Turn off
4-way value
Compressor
ON
Return
Return
Turn off for
55s?
B