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Table (d): Indoor Air Temperature Shifting
1. Target room temperature shift value (dGetaDst)
• To offset the absolute gap between detection temperature with actual room temperature.
• The heat exchanger unit’s temperature is different based on operation mode, it becomes the action operation mode value.
2. Room temperature shift value (dGeta)
• When compressor ON/OFF, correction of detected room temperature by shift value during defrost etc.
i) Initial value when operation starts, or changing the actual operation mode.
Set the offset value at each operation mode. However, in order to improve the heating startup efficiency, the offset value
will be changed based on the gap between setting temperature and room temperature.
ii) Updating during operation
During operation, it will compare with the target room temperature offset value at specific period, then the room temperature
will be updated.
Update the room temperature offset value (dGeta)
However, if the following condition is occurred, temperature cannot detect correctly and therefore no updating will be done.
• Heating zone E and above (Temperature gap is big and great capacity increased.)
• During deice
• After deice complete *within 600 sec.
• Comp. stop
Comp. starting *within 600 sec.
Table (e)
9.3. Room Temperature Control (Compressor Control)
Operating frequency of a compressor is decided according to temperature differences between remote controller setting and room
temperatures. By adding a relative method, based on current frequency, which gives frequency changes, a room temperature is
adjusted.
Actual operation mode Target room temperature offset value (dGetaDst)
Cooling (1)
Heating (2)
Dry (3)
Actual operation mode Gap between setting temperature and room temperature Room temperature offset value (dGeta)
Cool — (0)
Heat (Operation start set temp. - room temp.) < 4qC(4)
(Operation start set temp.) 4qC
(4)
Dry — (0)
Actual operation mode Room temperature zone Updating period (sec.)
Cool — (180)
Heat A, B, C, D zone (15)
Dry — (180)
Temperature condition Room temp. offset value after modified (dGeta)
Target room temp. offset value > Room temp. offset
value (dGetaDst > dGeta)
dGeta + (0.5)
Target room temp. offset value < Room temp. offset
value (dGetaDst < dGeta)
dGeta - (0.5)
Target room temp. offset value = Room temp. offset
value (dGetaDst = dGeta)
Do not change.
Installation position change heating shift -4qC
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