HSU09/12XCK-SM Functions and Control
DomesticAirConditioner
10
5ˊFunctions and control
5.1 main functions and control specifications
Including brief introduction to air conditioners of series models and electric control function.
5.1.1 Automatic running
(1)
Single cold automatic run mode:
After entering into this mode, the main control “MCU” determines the corresponding work pattern
according to the indoor temperature so as to maintain the preset temperature (the preset temperature is
78°F). When the indoor temperature is below 78°F, outlet air from compressor is off, the automatic
wind from fan motor is low, and wind can be set to high, medium or low by hand. When the indoor
temperature is or above 78°F, the unit enters the cooling mode and conducts the cooling programme
(the preset temperature is 78°F), outlet air from compressor is on and indoor fan motor run in fixed wind
speed.
5.1.2 Indoor temperature control
Temperature control range :
60°F ---86°F
Temperature control precision: ±2°F
Compressor can’t be controlled by temperature sensor within 2 minutes after it starts
ķ Cooling mode:
When Tr> Ts, outdoor fan motor and compressor on, and indoor fan motor run at fixed wind speed. When Tr
< Ts, outdoor fan motor and compressor off, and when Tr > Ts, outdoor fan motor and compressor are working
again .If Tr=Ts, the indoor fan motor , outdoor fan motor and the compressor’s state will not change.
5.1.3 Cooling run mode:
temperature control range :
60°F ---86°F
temperature control precision: ±2°F
compressor can’t be controlled by temperature sensor within 2 minutes after it starts.
control character: when Tr ≥ Ts, outlet air from compressor is on and indoor fan motor run at fixed
wind speed. When Tr< Ts, outlet air from compressor is off , and when Tr > Ts, outlet air from compressor
is on.
wind speed control: (the temperature difference is 1? )
auto: when Tr>=Ts+5°F, the wind speed is high;
When Ts+1°F ≤TrǂTs+5°F, the wind speed is medium.
When TrǂTs+1°F, the wind speed is low.
When temperature sensor is off, the fan motor runs at low speed.
when the wind speed changes from low to high, there is no delay, and when it changes from high to
low, there is a 3-minutes delay before conversion.
Manual operation:When unit is on the wind speed can be set to high, medium, low or automatic as
required (execute instruction 2 seconds later after receiving remote signal)
Compressor control喚The compressor can’t be controlled by temperature sensor within 2 minutes
after start up and can be only restarted at least 3 minutes later after shutdown. There is no 3-minute
protection with power on for the first time (over 3 minutes with power off). The compressor must stands
by for 3 minutes before it is restarted after shut down.
There is no 2-minute limit when changing the temperature setting or shutting down the machine
through the remote controller, and the machine can be shut down immediately.
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