coil pipe ascends to over 7℃, the compressor is restarted (must meet a 3-minutes
delay)
Timer on, Timer off and sleep control are available.
2.4 Heating mode: (Tr: inlet air temperature,Ts：the set temperature)
The background lighting of the LCD is red
Temperature control range : 16℃—30℃
Temperature control precision: ±1℃
Control Character:
When Tr ≤ Ts, compressor, four-ways valve and outdoor fan motor is on, indoor fan
motor runs as in cold blast avoidance mode, and 4℃of compensation is added after
compressor is started.
When Tr>Ts+5℃, compressor is off, and the indoor fan motor runs as in cold blast
avoidance mode.
When Tr<Ts+5℃, compressor, four-ways valve and outdoor fan motor is on, and the
indoor fan motor runs as in the mode of avoiding cold blast.
Control of indoor fan motor:
Manual operation: The wind speed can be set to high, medium, low or automatic as
required.
Automatic operation: When Tr < Ts, the wind speed is high;
When Ts=<Tr<Ts+2℃, the wind speed is medium.
When Tr>= Ts+2℃, the wind speed is low.
Control of air door: setting the position of air door as required.
compressor control：The compressor can’t be controlled by temperature sensor in 2
minutes after startup and also can’t be started again at least 3 minutes later after
shutdown. There are 3-minute protection with power on for the first time (over 3
minutes with power off). The compressor must be started again 3 minutes later after
shutdown.
There is no 2-minutes limit when changing the temperature setting or shutting off the
machine through the remote controller, and the machine can be shut down
immediately.
Avoiding electrical shock: outlet air is available 2 seconds later after startup.
Timer on, Timer off and sleep control are available.
Control of 4-way valve: When the unit is started for the first time, the 4-way valve starts
runnig 10 seconds earlier than compressor does. After compressor stops runnig, the
4-way valve continues running for 2 minutes and 30 seconds then stops. If changing
the unit from heating to cooling, the 4-way valve is shut off 2 minutes later and
compressor is started 3 minutes later.
Cold blast avoidance mode:
(1)Compressor is interrupted during the defrosting operation and continues to run after
defrosting is completed. When the indoor exchanging temperature is below 23℃,
the indoor fan motor is off. When the indoor exchanging temperature is above 23℃,
the indoor fan motor is running at weak speed.
(2)If the temperature of coil pipe can’t be above 38℃ 4 minutes later after startup, fan
motor is running at the preset wind speed.
Air Conditioner
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