Mitsubishi Electric MUZ-GA50VA, Service Manual

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17
NOTE : The unit of pressure has been changed to MPa on the international system of units (SI unit system).
The conversion factor is: 1(MPa [Gauge]) =10.2(kgf/ f f [Gauge])
(MPa [Gauge]) (kgf/ F [Gauge])
18 32 15 20
50 25
60 30
70 (%) 35(˚C)
0.3
0.4
0.5
0.6
0.7
0.8
3
4
5
6
7
8
9
0.9
Ambient temperature(˚C) Ambient humidity(%)
Outdoor low pressure
15 20
50 25
60 30
70 (%) 35(˚C)
4
5
6
7
8
32 18
Outdoor unit current(A)
Ambient temperature(˚C) Ambient humidity(%)
MUZ-GA50VA MUZ-GA50VA
0.3
0.4
0.5
0.6
0.7
0.8
3
4
5
6
7
8
9
0.9
MUZ-GA71VA
15 20
50 25
60 30
70 (%) 35(˚C)
5
7
9
11
13
32
18
Outdoor unit current(A)
Ambient temperature(˚C) Ambient humidity(%)
MUZ-GA71VA
(MPa [Gauge]) (kgf/ F [Gauge])
18 32 15 20
50 25
60 30
70 (%) 35(˚C)
Ambient temperature(˚C) Ambient humidity(%)
Outdoor low pressure
0.3
0.4
0.5
0.6
0.7
0.8
3
4
5
6
7
8
9
0.9
(MPa [Gauge]) (kgf/ F [Gauge])
18 32 15 20
50 25
60 30
70 (%) 35(˚C)
15 20
50 25
60
30
70 (%)
35(˚C)
5
6
7
8
9
32 18
Ambient temperature(˚C) Ambient humidity(%)
Outdoor low pressure
Outdoor unit current(A)
Ambient temperature(˚C) Ambient humidity(%)
MUZ-GA60VA MUZ-GA60VA
1. Press EMERGENCY OPERATION switch to COOL or HEAT mode (COOL : Press once, HEAT : Press twice).
2. Test run operation starts and continues to operate for 30 minutes.
3. Compressor operates at rated frequency in COOL mode or 58Hz in HEAT mode.
4. Indoor fan operates at High speed.
5. After 30 minutes, test run operation finishes and EMERGENCY OPERATION starts (Operation frequency of compressor
varies).
6. To cancel test run operation (EMERGENCY OPERATION), press EMERGENCY OPERATION switch or any button on
remote controller.
8-3. TEST RUN OPERATION (How to operate fixed-frequency operation)
COOL operation
1
Both indoor and outdoor unit are under the
same temperature/humidity condition.
2
Operation : TEST RUN OPERATION (refer to 8-3.)
Dry-bulb temperature( : )
Relative humidity(%)
20 50
25 60
30 70
8-4. OUTDOOR LOW PRESSURE AND OUTDOOR UNIT CURRENT
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