Service manual

10
MSZ12UN MUZ12UN
(Cooling)
71
67
63
71
67
63
14
12
8
10
1.5
1.3
1.1
0.9
0.7
0.5
Indoor intake air WB temperature (°F)
Indoor intake air WB temperature (°F)
65
70
75
75
70
65
21
17
9
13
2.0
1.0
SHF at rating condition = 0.73
= 388CFM
= 0.19
Airflow
Bypass Factor
65 75 85 95 105 115
Total power consumption (kW) Total capacity ( ✕10 Btu/h)
Outdoor intake air DB temperature (°F)
Indoor intake air DB temperature (
°F)
= 452CFM
Airflow
15 25 35 45 55
Total power consumption (kW) Total capacity ( ✕10 Btu/h)
Outdoor intake air WB temperature (°F)
1.2
1.4
1.6
1.8
Indoor intake air DB temperature (°F)
MSZ12UN MUZ12UN
(Heating)
This value of frequency is not the same as the actual frequency in operating. Refer to the page 16, 17 for the relationships
between frequency and capacity.
How to operate with fixed operational frequency of the compressor.
1. Press the EMERGENCY OPERATION switch on the front of the indoor unit, and select either EMERGENCY COOL mode
or EMERGENCY HEAT mode before starting to operate the air conditioner.
2. The compressor starts up.
The operational frequency of the compressor is 70Hz in EMERGENCY COOL mode and 58Hz in EMERGENCY HEAT
mode.
3. The fan speed of the indoor unit is High.
4. This operation continues for 30minutes.
5. In order to release this operation, press the EMERGENCY OPERATION switch twice or once, or press any button on the
remote controller.
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