Control Specification DAMA-SM-21-003
40 Functions and Control
3.8 Outdoor Fan Control
1. Fan ON control to cool down the electrical box
The outdoor fan is turned ON when the electrical box temperature is high wh
ile the
compressor is OFF.
2. Fan OFF delay when stopped
The outdoor fan is turned OFF 60 seconds after the compressor stops.
3. Fan speed control for pressure difference upk
eep
The rotation speed of the outdoor fan is controlled for keeping the pressure difference during
cooling operation with low outdoor tempera
ture.
When the pressure difference is low, the rotation speed of th
e outdoor fan is reduced.
When the pressure difference is high, the rota
tion speed of the outdoor fan is controlled
as well as normal operation.
4. Fan speed control during forced cooling ope
ration
The outdoor fan is controlled as well as normal operation during forced cooling operation.
5. F
an speed control during indoor unit quiet operation
The rotation speed of the outdoor fan is reduced by the command of the indoor unit quiet
operation.
6. F
an ON/OFF control when operation (cooling, dry) starts/stops
The outdoor fan is turned ON when the operation starts. The outdoor fan is turned OFF
when the operation stops.
7. F
an control when defrosting
8. Fan control when the compressor starts for heating
DAMA-SM-21-003 -Inverter Multi Split-CTX Series.book Page 40 Wednesday, September 1, 2021 5:44 PM
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