Service manual
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9.8 Outdoor low temperature protection
Factory standard unit has not this function.
Unit stops when outdoor temp. is low than -15°C and lasting time more than 60 minutes, and unit runs
again when outdoor temp. higher than -12°C.
When indoor PCB J7 jump is on, this function is available.
9.9 Auto operation mode
The air conditioner automatically selects one of the following operation modes: cooling, heating or fan
only according to the temp. difference between room temp. (TA) and set temp. (TS).
TA—TS
Operation mode
TA—TS>1
℃
Cooling
-1
℃
≤
TA-TS
≤
+1
℃
Fan-only
TA-TS<-1
℃
Heating
9.10
Manual switch
9.10.1 Mode changes when push this button.
Cooing mode
Auto mode
Unit off
Cooing mode
9.10.2 At Cooing mode, after 30 minutes cooling operation whose fan speed is set as low, the A/C
operates with a setting temp. of 24
℃
.
9.10.3 At auto mode, the A/C operates with a set temp. of 24
℃
9.11
Timer Function
9.11.1 The maximum length of timer is 24 hours and the minimum resolving power is 15 minutes.
9.11.2 Timer on: first turn off the A/C, the A/C will be automatically on at the set time.
9.11.3 Timer off: first turn on the A/C, the A/C will be automatically off at the set time
9.11.4 Timer on/off function( on time is earlier than off time): first turn off the A/C, it will be automatically
on at set time, and later be off at the set time, then unit turns on at set time.
9.11.5 Timer off/on function( off time is earlier than on time): first turn on the A/C, it will be
automatically off at set time, and later be on at the set time, then unit turns off at set time.
9.12
Auto restart function
In case of a sudden power failure, this function automatically sets the unit to previous settings before the
power failure when power returns.
