9. Defrost function in heating mode:
Defrost
conditions:
1). unit goes into heating pump or works after defrost cycle for 30 minutes
2). compressor continuously runs over 5 minutes,
3). when OPT-5ć for one minute
if meet the above 3 conditions together, unit would begin defrost cycle.
Defrost procedure is as following:
1).Stop the aux electrical heater first if unit has this function.
2). 3 seconds later, compressor, outdoor fan and indoor fan stop working.
3). 1 minute later, 4-way valve stops.
4). Compressor will work again after 90 seconds
Defrost relieving conditions:
After compressor running for 5 minutes, when OPT (outdoor coil temperature) rises up to 15ć, defrost
cycle will be relieved automatically, and unit goes into normal heating mode. For each defrost cycle, the
time is no more than 12 minutes (does not include the compressor close time), even OPT (outdoor coil
temperature) is less than 15ć. Each defrost cycle time is 5-12 minutes.
Defrost relieving procedure is as following:
1). Outdoor fan will run first, compressor and indoor fan close.
e.
3). Compressor will work again after 30 seconds, indoor fan will work with anti-cold air function, and
defrost cycle is off. Aux electrical heater will work as original mode if unit has this function.
Note: 1). During defrost cycle, yellow Timer led will flash with 1Hz frequency.
2). Temperature detection is valid only when compressor is working.
9.3.5 Fan mode
1. Com
2. Four-way valve: no electrical power
3. Outdoor fan motor:
stop
4. Indoo
r fan motor speed : Has auto, low, middle and high speed, and auto speed control is same
as
coolin
g mode.
9.3.6 Sleeping mode
1.
Sleeping mode only works in Heating or Cooling mode, or cooling/heating under Auto function.
2.
At the beginning of sleeping running in Cooling mode, if room temperature˚ setting temperature,
the
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