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Service Manual
6.5 Function Introduction
1 Basic Function
1.1 Cooling mode
1.1.1 Cooling condition and process
a. When Tindoor amb. Tpreset+1
fan operate and indoor fan operates at set fan speed.
b. When Tindoor amb. Tpreset-1
set fan speed.
c. When Tpreset-1
1.1.2 In this mode, the set temperature range is 16 ~30
1.2 Dry Mode
Dry Conditions and Process
a. When Tamb.
Tpreset+2
b. When Tpreset-2
(4 ) Tamb. Tpreset+2
at low speed. The compressor and the outdoor fan will stop for 6 min and operate for 4min circularly.
c. When Tamb. Tpreset-4 (2 ), the compressor will stop working and the fan will operate at low speed.
Under this mode, the setting temperature range is 16~30
1.3 Heating mode
1.4.1 When Tindoor amb. Tpreset+1
operate. Fan will operate at cold air prevention condition;
1.4.2 When Tindoor amb. Tpreset + 3
operate at blowing residual heat mode.
1.4.3 When Tpreset + 1
1.4.4 Under this mode, the temperature setting range is 16-30
1.4 Fan mode
a. In this mode, compressor and electric heating pipe will stop operation and fan will operate at set speed.
b. In this mode, the set temperature range is 16 ~30
1.6. Auto Mode
Working conditions and process
a. When Tamb. 26
(79
b. When Tamb. 22
(72
Tpreset=20
68
;
When 22
(72
) Tamb. 26
for the first time, it will operate at fan mode.
Technical Information
2
, the unit operates in cooling mode. Meanwhile, compressor and outdoor
2
, compressor and outdoor fan stop operation, while indoor fan operates at
2
<Tindoor amb.<Tpreset+1
(4 ), the unit will operate in Cool mode, and the fan will run at low speed.
(4 ), the unit will operate in Dry mode. In that case, the indoor fan will operate
, the unit will operate at heating mode. Meanwhile, 4-way valve and compressor will
6
, compressor will stop operation while 4-way valve will be energized. Fan will
Tindoor amb
Tpreset + 3
), the unit will operate in Cool mode. Tpreset=25
), the heat pump unit will operate at heating mode and the cooling only unit will operate at fan mode;
(79
) , the unit will maintain its previous running state. When the unit enters into auto mode
2
, the unit keeps original operation status.
61 ~86
61~86
the unit will keep its previous operation status;
(61-86 ).
61 ~86
.
77
37
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