and the outdoor fan motor returns to its original state;
The above temperature points, frequency-decreasing step and time interval can
all be adjusted through EEPROM
III. Anti over-loading operation while heating:
5.3.When the operation frequency F
<
40HZ, if the temperature of the outdoor
coiled pipe T
outdoor coil≥
52
℃
, the outdoor fan motor performs forced high-speed
operation and the operation frequency of the compressor should be decreased by
2Hz
,
then examine the temperature of the outdoor coiled pipe at 10-second
intervals, if T
outdoor coil≥
52
℃
, decrease the operation frequency further by 2Hz
,
until the frequency is the lowest;
During the frequency-decreasing operation, if 47
℃≤
T
outdoor coil<
52
℃
, the
compressor and the fan motor keep their original states;
When T
outdoor coil≤
46
℃
, the compressor runs at the normal operating frequency,
and the outdoor fan motor returns to its original state;
5.4.When the operation frequency F
≥
40HZ, if the temperature of the outdoor
coiled pipe T
outdoor coil≥
57
℃
, the outdoor fan motor performs forced high-speed
operation and the operation frequency of the compressor should be decreased by
2Hz
,
then examine the temperature of the outdoor coiled pipe at 10-second
intervals, if T
outdoor coil≥
57
℃
, decrease the operation frequency further by 2Hz
,
until the frequency is the lowest;
During the frequency-decreasing operation, if 52
℃≤
T
outdoor coil<
52
℃
, the
compressor and the fan motor keep their original states
When T
outdoor coil≤
51
℃
, the compressor runs at the normal operating frequency,
and the outdoor fan motor returns to its original state;
The above temperature points, frequency-decreasing step and time interval can
all be adjusted through EEPROM
6.. Compressor discharge safeguard:
5 minutes after the compressor starts, when the compressor temperature
rises above 105
℃
, decrease the compressor frequency by 2HZ/stop for 10
seconds, until the compressor temperature falls below 90
℃
, the compressor
returns to normal operation;
When the compressor temperature rises above 115
℃
, the compressor
should stop at once, wait until the compressor temperature falls below 90
℃
and the waiting time period exceeds 3 minutes, the compressor returns to
normal operation;
After the compressor restarts, if the compressor temperature rises above
115
℃
once more within 15 minutes, the compressor should stop at once
and give an alarm.
The temperature points are stored in EEPROM
37
Model:
HSU-12HS03/R2(DB)
HSU-09HS03/R2(DB)Domestic Air Conditioner