13
8-3. HOW TO OPERATE FIXED-FREQUENCY OPERATION
<Test run operation>
1. Press EMERGENCY OPERATION switch to start 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 58 Hz 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.
Outdoor low pressure
MUZ-DM25VA
MUZ-DM35VA
4
5
6
7
8
9
3
4
5
6
7
8
(kgf/cm
2
[Gauge])(MPa [Gauge])
50
18
32
60
70
(%)
(°C)
Ambient temperature(°C)
Ambient humidity(%)
(kgf/cm
2
[Gauge])(MPa [Gauge])
50
18
32
60
70
(%)
(°C)
Ambient temperature(°C)
Ambient humidity(%)
15
20
25
30
35
0.4
0.5
0.6
0.7
0.8
0.9
15
20
25
30
35
0.3
0.4
0.5
0.6
0.7
0.8
COOL operation
Both indoor and outdoor unit are under the same tempera-
ture/humidity condition.
Operation: TEST RUN OPERATION (Refer to 8-3.)
8-4. 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/cm
2
[Gauge])
Dry-bulb temperature (°C) Relative humidity (%)
20
50
25
60
30
70
15
20
25
30
35
2
3
4
5
15
20
25
30
35
3
4
5
6
32
18
50
60
70
(%)
(°C)
Outdoor unit current
MUZ-DM25VA
MUZ-DM35VA
Ambient temperature (°C)
Ambient humidity(%)
O
utd
oo
r c
urre
nt
(
A
)
32
18
50
60
70
(%)
(°C)
Ambient temperature (°C)
Ambient humidity(%)
O
utd
oo
r c
urre
nt
(
A
)
OBH751
