Mitsubishi Electric MXZ-2D33VA-E1 Service Manual page 51

8-3. 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 operates at rated frequency.
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.
8-4. OUTDOOR LOW PRESSURE AND OUTDOOR UNIT CURRENT CURVE
(single operation)
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
(1) COOL operation
Both indoor and outdoor units are under the
same temperature/humidity condition.
Operation : TEST RUN OPERATION (Refer to 8-3.)
MXZ-2D33VA
15-class unit
(MPa[Gauge])
1.3
13
1.2
12
1.1
11
1.0
10
0.9
9
0.8
8
7
0.7
15 20 25
50 60
Ambient temperature ( )
Ambient humidity (%)
20-class unit
(MPa[Gauge])
1.3
13
1.2
12
1.1
11
1.0
10
0.9
9
0.8
8
7
0.7
15 20 25
50 60
Ambient temperature ( )
Ambient humidity (%)
25-class unit
(MPa[Gauge])
1.5
15
1.4
14
1.3
13
1.2
12
1.1
11
1.0
10
9
0.9
15 20 25
50 60
Ambient temperature ( )
Ambient humidity (%)
OBH626B
6
5
48Hz
4
3
2
1
30 35
15 20 25
70
50 60
(%)
Ambient temperature ( )
Ambient humidity (%)
5
4
48Hz
3
2
1
0
30 35
15 20 25
70
50 60
(%)
Ambient temperature ( )
Ambient humidity (%)
5
4
48Hz
3
2
1
0
30 35
15 20 25
70
50 60
(%)
Ambient temperature ( )
Ambient humidity (%)
[Gauge])
2
Dry-bulb temperature ( )
18-class unit
(MPa[Gauge])
1.5
15
1.4
14
1.3
13
1.2
12
48Hz 1.1
11
1.0
10
9
0.9
15 20
30 35
50
70
(%)
Ambient temperature ( )
Ambient humidity (%)
22-class unit
(MPa[Gauge])
1.5
15
1.4
14
1.3
13
48Hz
1.2
12
1.1
11
1.0
10
9
0.9
15 20
30 35
50
70
(%)
Ambient temperature ( )
Ambient humidity (%)
48Hz
30 35
70
(%)
51
Relative humidity (%)
20
25
30
5
4
48Hz
3
2
1
0
25 30 35
15 20
70
60
50
(%)
Ambient temperature ( )
Ambient humidity (%)
5
4
48Hz
3
2
1
0
25 30 35
15 20
70
60
50
(%)
Ambient temperature ( )
Ambient humidity (%)
50
60
70
48Hz
25 30 35
70
60
(%)
48Hz
25 30 35
60 70
(%)