Chigo 38B Service Manual page 89

and indoor blower fan ② none defrost ③ TP1< 49℃ ④Tr ≤20℃.
● The electric heating shutdown in the heating mode shall meet one of the following conditions: ① shutdown
indoor blower fan ② Tr ≥ 23℃ ③ TP1≥50℃.
● In the heating mode, the indoor flower fan can be set as high/ medium/ low /automatic running mode by remote
control however the anti cool air function is prior. In the heating mode, the anti cool air control function is to
control shutdown of the indoor blower fan by detecting the temperature of coil pipe of evaporator so as to attain
the purpose of preventing cold air from blowing.
● For the waste heat emission function in the heating mode, in principle, the indoor blower fan shall be on for
fifteen seconds after the electric heating is closed.
● When the temperature of coil pipe of indoor units is more than or equal to 56℃, the outdoor blower fan shuts
down and it enters the overload protection; when the temperature of coil pipe of indoor units is less than or equal
to 52℃, the outdoor blower fan starts up and it exit the overload protection.
● When the temperature of coil pipe of indoor units rises to 63℃, the compressor and outdoor blower fan are closed
and two minutes later, the change valve is closed. The indoor blower fan is running at the set speed. Restart up six
minutes later; if the above situations appear again within ten minutes, all the outputs are shut down through the
electric control board and display failure.
● When you press turbo button of remote, the air conditioner enter turbo running, compressor ,outdoor blower fan
and four-way valve turn on all along, indoor blower fan run at high speed and it must meet start condition, turbo
indication is light.
● After the compressor runs five minutes, the lamp flashes 4 times per six seconds or display E4 if the temperature
of indoor coil pips is less than 30℃ (heating) in the continuous 20 minutes. The controller will automatically shut
down if the temperature of indoor coil pips is less than 30℃ in another continuous 20 minutes, that is the
abnormality protection of outdoor units and the indicator lamp keeps its former state of flashing.
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