AUX ASW-H09A4/EAR1-dw, Service Manual

Page: 27 / 76

- 25 -
if TE< TE8, the indoor fan stops immediately.
⑩
Overheated protection
：
a) When heating function runs
，
if TE ≥ TE9 and last for 10seconds
，
the outdoor fan stops
；
if
TE ≥ TE10 and last for 10seconds, then stop the compressor
；
When TE< TE11 and after the 3
minutes protection delay, the compressor resumes normal working.
b) This temperature protection is valid only when the TE temperature sensor runs normally.
(8)The auxiliary electric heating function
①
The electric heating function may not start unless the heating mode runs normally e.g. the
compressor starts, the outdoor fan runs, the four-way valve is electrified, the indoor fan is on
as well as the availability of the below conditions:
a)TE < TE12
；
b)TA < TA3
；
c)TS – TA ≥ 3
℃；
d)The compressor runs continuously in heating mode for 4min
；
②
The auxiliary electric heating may withdraw working if meet one of the below conditions:
a)TA > TA3
；
b)TS – TA < 2
℃；
c)TE > TE11
；
③
If one of the compressor, four-way valve and indoor fan doesn’t work or there is error
feedback from the indoor fan, the auxiliary electric heating withdraw from work;
④
If the sensor of TE is damaged and the turn-off without non-electricity occurred in the
ongoing auxiliary electric heating process, the indoor fan turns in the low speed wind
operation for 40 seconds and stops
；
(9)Intelligent defrosting function
①
Under the operation of the intelligent defrosting mode, the air-conditioner starts the
defrosting process if satisfying the requirement of one of the below five conditions (the
sub-conditions included shall all be satisfied). During the defrosting process, the sleeping light
is twinkling:
● a) The outdoor fan starts the overloading protection and the outdoor fan stops;
b) Restart the outdoor fan after stop and the continuous running time over than 10
minutes;
c)The accumulated operation time of the compressor ≥ 45min ；
d)The continuous operation time of the compressor ≥ 20min ；
e)TE ≤ TE12 。
● a) After the 5 minutes operation of the heating mode or 5 minutes later after the defrosting
process, starts the capture motion for the max. difference value between TE and TA, when
the difference between TE and TA being reduced up than X min and the time lasts
≥ 3min ；
b)The continuous operation time of the compressor ≥ 5min ；
c)The accumulated operation time of the compressor ≥ 45min ；
d)TE ≤ TE12 ；
Note ： When the wind speed correction available, if the wind speed of the indoor fan drops by
one gear, the temperature difference correction value shall be -1 ℃， if the wind speed of the
indoor fan rises by one gear, the temperature difference correction value shall be +1 ℃ .
● a)The accumulated operation time of the compressor ≥ 3hour ；