Heat Controller Energy Knight B/A-HMC30AS Service Manual page 19

7. Heating Operation - 2nd Stage
1) Operation
- 100% compressor operation would be performed when 3-minutes pass after suspension of the previous stage and the room
temperature reaches at [ Desired Temp. -0.5°C].
- 60% & 40% compressor operations would be all suspended when the room temperature goes to [Desired Temp. +0.5°C].
- Criteria to shift to the following operation stage
: It shifts to the Heating Operation-3rd Stage from the Heating Operation-2nd Stage, if the operation time of compressor is
within 6 minutes and at the same time the outdoor temperature is over [Outdoor Temperature possible for 60% Operation]
whenever it checks every operation time.
2) Operation Diagram
Room Temp.
Desired Temp.+0.5 C
Desired Temp.
Desired Temp.-5.0 C
40 %
Comp.
60 %
Outdoor Fan
Indoor Fan
Room Temp.
Outdoor Temp. >
7 C
6 mins. 3 mins.
OFF ON OFF
OFF ON OFF
OFF MAX. OFF
Controlled at the Indoor Unit
6 mins. 3 mins.
ON OFF
ON OFF
MAX. OFF
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