Heating Operation - Mitsubishi Electric MFZ-KA25VA Service Manual

OUTDOOR LOW PRESSURE AND OUTDOOR UNIT CURRENT
COOLING operation
1 Both indoor and outdoor unit are under the
same temperature/humidity condition.
2 Air flow : High speed
3 Operational frequency : 57Hz (SUZ-KA25VA.TH)
SUZ-KA25VA.TH
(MPa [Gauge])
1.4
1.2
1.0
0.8
0.6
0.4
0.2
15 18 20 25
50 60
Ambient temperature(˚C) Ambient humidity(%)
SUZ-KA25VA.TH
3.5
3.0
2.5
2.0
1.5
15 18 20 25
50 60
Ambient temperature(˚C) Ambient humidity(%)

HEATING operation

Condition indoor: Dry bulb temperature 20.0°C
Condition outdoor: Dry bulb temperature 2,7,15,20.0°C
SUZ-KA25VA.TH
3.0
2.5
2.0
1.5
2 5
Ambient temperature(˚C)
77Hz (SUZ-KA35VA.TH)
75Hz (SUZ-KA50VA.TH)
SUZ-KA35VA.TH
(MPa [Gauge])
1.4
1.2
57Hz
1.0
0.8
0.6
0.4
0.2
30 32 35(˚C) 15
70 (%)
Ambient temperature(˚C) Ambient humidity(%)
SUZ-KA35VA.TH
5.0
57Hz
4.5
4.0
3.5
3.0
30 32 35(˚C) 15
70 (%)
Ambient temperature(˚C) Ambient humidity(%)
Wet bulb temperature 14.5°C
Wet bulb temperature 1,6,12,14.5°C
4.5
58Hz
4.0
3.5
3.0
10 15 20 25(:)
Dry-bulb temperature
77Hz
18 20 25 30 32 35(˚C)
50 60 70 (%)
77Hz
18 20 25 30 32 35(˚C)
50 60 70 (%)
SUZ-KA35VA.TH
58Hz
2 5 10 15 20 25(:)
Ambient temperature(˚C)
11
Relative humidity(%)
20
25
30
SUZ-KA50VA.TH
(MPa [Gauge])
1.4
1.2
1.0
0.8
0.6
0.4
0.2
15 18 20 25
50 60
Ambient temperature(˚C) Ambient humidity(%)
SUZ-KA50VA.TH
7.0
6.5
6.0
5.5
5.0
4.5
15 18 20 25
50 60
Ambient temperature(˚C) Ambient humidity(%)
SUZ-KA50VA.TH
6.0
5.5
5.0
4.5
2 5 10 15
Ambient temperature(˚C)
50
60
70
75Hz
30 32 35(˚C)
70 (%)
75Hz
30 32 35(˚C)
70 (%)
58Hz
20 25(:)