Service manual

15
<How to operate fixed-frequency operation (Test run operation)>
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 starts at fixed-frequency.
4. Indoor fan operates at High speed.
5. After 30 minutes, test run operation finishes and EMERGENCY OPERATION starts.
6. To cancel test run operation (EMERGENCY OPERATION), press EMERGENCY OPERATION switch or any button on
remote controller.
OUTDOOR LOW PRESSURE AND OUTDOOR UNIT CURRENT
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/
ff
[Gauge])
2 Air flow : High speed
3 Operational frequency : 71Hz(MUZ-GA50VA)
87Hz(MUZ-GA60VA)
62Hz(MUZ-GA71VA)
(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
71Hz
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
71Hz
32
18
Outdoor unit current(A)
Ambient temperature(˚C) Ambient humidity(%)
MUZ-GA50VA -
E1E1
MUZ-GA50VA -
E1E1
OUTDOOR LOW PRESSURE AND OUTDOOR UNIT CURRENT
COOL operation
1 Both indoor and outdoor unit are under the
same temperature/humidity condition.
Dry-bulb temperature
Relative humidity(%)
20
50
25
60
30 70
0.3
0.4
0.5
0.6
0.7
0.8
3
4
5
6
7
8
9
0.9
MUZ-GA71VA -
E1
15 20
50
25
60
30
70 (%)
35(˚C)
5
7
9
11
13
62Hz
32
18
Outdoor unit current(A)
Ambient temperature(˚C) Ambient humidity(%)
MUZ-GA71VA -
E1
(MPa [Gauge])
(kgf/F [Gauge])
18 32
15 20
50
25
60
30
70 (%)
35(˚C)
62Hz
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)
87Hz
15 20
50
25
60
30
70 (%)
35(˚C)
5
6
7
8
9
87Hz
32
18
Ambient temperature(˚C) Ambient humidity(%)
Outdoor low pressure
Outdoor unit current(A)
Ambient temperature(˚C) Ambient humidity(%)
MUZ-GA60VA -
E1E1
MUZ-GA60VA -
E1E1
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