Mitsubishi MSZ-FA-VA Service Technical Manual page 69

<Correction>
1 Discharge temperature
2 Each correction
• (Each gas pipe temperature thermistor - Minimum gas pipe temperature thermistor)w 1
• (Main indoor coil thermistor - Sub indoor coil thermistor)
w 1 Perform this, when number of operation units is 2 units or more.
MXZ-2A52VA is excluded.
w 2 Correct the LEV opening by discharge temperature.
(1) LEV opening correction by discharge temperature
The target discharge temperature is determined according to frequency zone and number of operation unit of the
compressor.
MXZ-2A52VA
Operation frequency
of compressor (Hz)
Minimum ~ 23
24 ~ 38
39 ~ 54
55 ~ 69
70 ~ 85
86 ~ 100
101 ~ Maximum
MXZ-3A54VA MXZ-4A71VA
Operation frequency
of compressor (Hz)
Minimum ~ 23
24 ~ 38
39 ~ 54
55 ~ 69
70 ~ 85
86 ~ 100
101 ~ Maximum
MXZ-4A80VA
Operation frequency
of compressor (Hz)
Minimum ~ 14
15 ~ 23
24 ~ 32
33 ~ 41
42 ~ 50
51 ~ 59
60 ~ 68
69 ~ 77
78 ~ 86
87 ~ Maximum
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Target discharge temperature (:)
COOL
Number of operating unit
1 unit 2 units
56
69
59
60
61
62
63
Target discharge temperature (:)
COOL
Number of operating unit
1 unit 2 units 3 units
55 58 62
60 60 65
62 65 70
68 68 70
70 70 72
70 70 72
70 72
70
Target discharge temperature (:)
COOL
Number of operating unit
1 unit 2 units 3 units
55 55 57
55 55 57
55 58 63
60 60 65
65 65 70
68 68 73
70 70 75
75 73 80
75 75 82
75 80 82
Number of operating unit
1 unit
60 57
61 63
64 69
67 75
67 80
69 86
70 90
Number of operating unit
4 units 1 unit 2 units
62 50
56
65
70 60
70 60
72 60
72 60
72 60
Number of operating unit
4 units 1 unit
59 52
60 58
65 65
67 68
72 68
74 68
75 68
80 68
84 68
78
84
69
COOL DRY HEAT
• •
w 2 w 2
• •
-
HEAT
2 units
51
58
64
71
77
83
90
HEAT
3 units 4 units
50 50 50
50 55 55
56 60 60
60 60 60
60 60 60
60 60 60
60 60 60
HEAT
2 units 3 units 4 units
62 50 50
66 55 55
74 60 60
78 67 67
78 72 72
78 76 76
78 76 76
76
78 76
76 76
78
78 76 76
•