Single Zone Service Manual - General

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Part 2 Functions & Controls
2.3 Healthy Dehumidification operation
• When the dehumidification operation is set by the remote controller, the intake air temperature is detected and the set-
ting temp. is automatically set according to the intake air temperature.
•
When intake air temp. is 1°C(2°F) above the setting temp., condition of compressor is same as in cooling mode operation.
• When intake air temperature reaches 1°C(2°F) below the setting temp., compressor operates in step1~step3 and the
indoor fan speed again operates at low speed or comes to a stop.
2.4 Auto changeover operation
• The air conditioner changes the operation mode automatically to keep indoor temperature steady.
• When room temperature vary over ±2°C(±4°F) with respect to setting temperature, air conditioner keeps the room tem-
perature in ±2°C(±4°F) with respect to setting temperature by changing the mode from cooling to heating and vice
versa.
Intake air Temp. Setting Temp.
26°C(78.8 °F) ≤ intake air temp. 25°C(77 °F)
24°C(75.2 °F) ≤ intake air temp.< 26°C(78.8 °F) intake air temp. -1°C(-2 °F)
22°C(71.6 °F) ≤ intake air temp. < 24°C(75.2 °F) intake air temp. -0.5°C(-1 °F)
18°C(64.4°F) ≤ intake air temp. < 22°C(71.6 °F) intake air temp.
intake air temp. < 18°C(64.4 °F) 18°C(64.4 °F)
+0.5C(+1F)
-0.5C(-1F)
-2C(-4F)
+4C(+8F)
+2C(+4F)
Cooling thermo off
Heating thermo off
Switching point
Switching point
Setting
Temp.
Cooling
operation
Heating operation
Cooling
operation
Mode