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(1) LEV opening correction by discharge temperature
The target discharge temperature is determined according to frequency zone and number of operation unit of the com-
pressor.
<Correction>
COOL DRY HEAT
Discharge temperature
●
2
●
2
●
Each correction
• (Each gas pipe temperature thermistor - Minimum gas pipe temperature thermistor) 1
• (Main indoor coil thermistor - Sub indoor coil thermistor)
●
●
—
1 Perform this, when number of operation units is 2 units or more.
(MXZ-2A20NA
and
MXZ-3A30NA only)
2 Correct the LEV opening by discharge temperature.
MXZ-2A20NA
Operation frequency
of compressor (Hz)
Target discharge temperature (°F)
COOL HEAT
Number of operating unit
1 unit 2 units 1 unit 2 units
Minimum ~ 23 95 136.4 122 122
24 ~ 38 104 140 132.8 122
39 ~ 54 120.2 149 140 132.8
55 ~ 69 136.4 154.4 140 140
70 ~ 85 149 158 140 140
86 ~ Maximum 158 158 140 140
MXZ-3A30NA
Operation frequency
of compressor (Hz)
Target discharge temperature (°F)
COOL HEAT
Number of operating unit
1 unit 2 units 3 units 1 unit 2 unit 3 units
Minimum ~ 14 95 131 134.6 125.6 143.6 122
15 ~ 23 104 131 134.6 136.4 150.8 131
24 ~ 32 120.2 136.4 145.4 149 165.2 140
33 ~ 41 136.4 140 149 154.4 172.4 152.6
42 ~ 50 149 149 158 154.4 172.4 161.6
51 ~ 59 154.4 154.4 163.4 154.4 172.4 168.8
60 ~ 68 158 158 167 154.4 172.4 168.8
69 ~ 77 167 163.4 176 154.4 172.4 168.8
78 ~ 86 167 167 179.6 154.4 172.4 168.8
87 ~ Maximum 167 176 179.6 172.4 172.4 168.8
MXZ-2A20NA-
1
,
2
MXZ-2B20NA MXZ-2B20NA-
1
Operation frequency
of compressor (Hz)
Target discharge temperature (°F)
COOL HEAT
Number of operating unit
1 unit 2 units 1 unit 2 units
Minimum ~ 23 95 136.4 122 122
24 ~ 38 104 140 132.8 122
39 ~ 54 120.2 149 140 132.8
55 ~ 69 136.4 154.4 145.4 140
70 ~ 85 149 158 150.8 140
86 ~ Maximum 158 158 152.6 140