16
7.6.3. The TIMER function is valid in drying mode.
7.7 Heating mode (heater)
7.7.1. The speed of indoor fan can be optionally chosen as High/Mid/Low.
The compressor and outdoor fan keep on stop (except P1 protection)
7.7.2. In heating mode, the heater will operate according to the difference between TA and TS.
Electric heater operates as below.
7.7.2.1. When TA﹤TS, the indoor fan operates firstly, and then the heater operates after 4 seconds.
7.7.2.2. If TA﹥TS＋1℃, the heater stops. Then the heater turns off after 10 seconds.
When the unit is off in heating mode, the indoor fan motor stops delaying for 10 seconds
7.7.3. The TIMER function is valid in heating mode.
7.8 Heating mode (heat pump)
7.8.1. When TA≤TS+5℃, compressor operates; When TA﹥TS＋6℃, compressor stops.
When TA ﹤ 5 ℃ , heat pump mode is invalid, and water pump/indoor motor/outdoor
motor/compressor/ shaded pole motor stop; When TA≥6℃, heat pump mode resumes to be valid.
7.8.2. At non-defrosting situation, shaded pole motor always stops ; Compressor operates; Outdoor motor
is on at high speed. Then outdoor motor stops at a delay of 30s when compressor is off. When unit
is change to others mode(non-heating mode), Four-way valve shuts off at a delay of 2 minutes than
compressor.
7.8.3. Condition of entering into defrosting mode: when the operation time of TE(TC) (TE(TC)≤2℃
continuous) is up to 40minutes.
Defrosting motion: 1) Compressor operates; Four-way valve and indoor /up outdoor motor shut
off(down outdoor fan is still on at low speed).
(T A -T s )℃
+1
0
H e a te r o n
O p e ra tio n co n d iton
H e a te r o ff
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