Mitsubishi FDCVA302HENR User Manual

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(iii) Outdoor unit fan control
1) Fan tap control during cooling and dehumidifying
The fan tap’s speed is changed in accordance with the outdoor unit heat exchanger temperature (Tho-R1) and
outdoor air temperature (Tho-A).
A Zone
a Zone
b Zone
c Zone
d Zone
6th Speed
5th Speed
4th Speed
3th Speed
B Zone
6th Speed
5th Speed
4th Speed
3th Speed
C Zone
5th Speed
4th Speed
3th Speed
2th Speed
D Zone
A Zone
B Zone
C Zone
D Zone
a Zone
b Zone
c Zone
d Zone
4th Speed
3th Speed
2th Speed
1th Speed
15 18
30 37
46 48
20 30
33 40
43 53
Outdoor air temperature (˚C)
Outdoor heat exchanger temperature (˚C)
2) Fan tap control during heating
The fan tap’s speed is changed in accordance with the outdoor unit heat exchanger temperature (Tho-R1) and
outdoor air temperature (Tho-A).
2th Speed
3th Speed
4th Speed
3th Speed
4th Speed
5th Speed
4th Speed
5th Speed
6th Speed
39
12 15
-2 0
13
a Zone
b Zone
c Zone
A Zone B Zone C Zone
A Zone
B Zone
C Zone
a Zone
b Zone
c Zone
Outdoor air temperature (˚C)
Outdoor heat exchanger temperature (˚C)
3) Snow protection fan control
When DIP switch (SW3-2) on the outdoor unit’s control PCB is ON or when in the stop mode or the abnormal stop
mode, the outdoor unit’s fan runs at 4th speed for 1 minute and 30 seconds every ten minutes in accordance with the
outdoor air temperature (sensed by Tho-A).
4) Cautions concerning outdoor unit fan start control
Before the compressor starts, if the outdoor unit’s fan runs for 400 min
-1
or longer (including in reverse), the com-
pressor may run by itself without the outdoor unit fan starting. This is not a breakdown.
5) If the outdoor unit’s fan motor is sensed to be abnormal
a) If the compressor is ON and the outdoor unit fan motor is turning at 100 min
-1
or less or is turning in reverse for
30 seconds or longer, the compressor stops instantly. After the compressor is stopped for 3 minutes, if the
thermostat’s ON conditions are established, the compressor starts.
b) If it is detected 5 times within 60 minutes after the first detection, an abnormal stop (E48) occurs.
ON
35
OFF
Outdoor air temperature (˚C)

Mitsubishi FDCVA302HENR Specifications

General

Brand	Mitsubishi
Model	FDCVA302HENR
Category	Air Conditioner
Language	English