Engineering Manual

A-140
MUFZ-KJ09NAHZ MUFZ-KJ12NAHZ MUFZ-KJ15NAHZ MUFZ-KJ18NAHZ
1) COOLING CAPACITY
Model
Indoor air Outdoor intake air DB temperature (˚F)
IWB (˚F)
75 85 95 105 115
TC SHC TPC TC SHC TPC TC SHC TPC TC SHC TPC TC SHC TPC
MUFZ-KJ09NAHZ
71 11.0 7.2 0.51 10.3 6.8 0.56 9.7 6.4 0.60 9.0 5.9 0.63 8.3 5.4 0.66
67 10.4 8.2 0.48 9.7 7.7 0.53 9.0 7.1 0.57 8.4 6.6 0.60 7.7 6.1 0.63
63 9.8 9.1 0.46 9.1 8.4 0.50 8.5 7.8 0.54 7.7 7.1 0.58 7.0 6.5 0.60
MUFZ-KJ12NAHZ
71 14.7 8.3 0.79 13.7 7.8 0.87 12.9 7.3 0.93 12.0 6.8 0.98 11.0 6.3 1.02
67 13.9 9.7 0.75 13.0 9.1 0.82 12.0 8.4 0.89 11.2 7.8 0.94 10.3 7.2 0.99
63 13.1 10.9 0.71 12.1 10.1 0.79 11.3 9.4 0.85 10.3 8.6 0.91 9.4 7.8 0.94
MUFZ-KJ15NAHZ
71 18.4 9.7 1.00 17.2 9.0 1.09 16.1 8.5 1.18 15.0 7.9 1.24 13.8 7.3 1.29
67 17.4 11.5 0.94 16.2 10.7 1.04 15.0 9.9 1.12 14.0 9.2 1.19 12.8 8.5 1.24
63 16.4 13.0 0.90 15.2 12.0 0.99 14.1 11.2 1.07 12.8 10.2 1.14 11.7 9.3 1.19
MUFZ-KJ18NAHZ
71 20.8 10.8 1.20 19.5 10.1 1.32 18.3 9.4 1.42 17.0 8.8 1.49 15.6 8.1 1.55
67 19.7 12.8 1.13 18.4 11.9 1.25 17.0 11.1 1.35 15.8 10.3 1.43 14.5 9.4 1.50
63
18.5 14.5 1.08 17.2 13.4 1.19 16.0 12.5 1.29 14.5 11.4 1.38 13.3 10.4 1.43
OTE: 1. IWB: Intake air wet-bulb temperature
TC: Total Capacity (×10
3
Btu/h)
SHC: Sensible Heat Capacity (×10
3
Btu/h)
TPC: Total Power Consumption (kW)
2. SHC is based on 80˚F of indoor Intake air DB temperature.
2) HEATING CAPACITY
Model
Indoor air Outdoor intake air WB temperature (˚F)
IDB (˚F)
5 15 25 35 43 45 55
TC TPC TC TPC TC TPC TC TPC TC TPC TC TPC TC TPC
MUFZ-KJ09NAHZ
75 4.8 0.57 6.4 0.69 8.0 0.79 9.5 0.73 10.7 0.77 11.1 0.78 12.5 0.81
70 5.2 0.55 6.8 0.67 8.3 0.77 9.7 0.71 11.0 0.75 11.3 0.77 12.8 0.80
65 5.5 0.54 6.9 0.65 8.6 0.75 10.1 0.69 11.3 0.73 11.7 0.74 13.1 0.78
MUFZ-KJ12NAHZ
75 5.7 0.66 7.5 0.80 9.4 0.92 11.2 0.88 12.7 0.92 13.1 0.94 14.8 0.97
70 6.2 0.64 8.0 0.78 9.8 0.90 11.5 0.86 13.0 0.90 13.4 0.92 15.1 0.95
65 6.5 0.62 8.2 0.75 10.2 0.87 11.9 0.83 13.4 0.88 13.8 0.89 15.5 0.94
MUFZ-KJ15NAHZ
75 7.9 0.95 10.4 1.17 13.1 1.35 15.6 1.37 17.6 1.45 18.1 1.47 20.5 1.52
70 8.6 0.92 11.1 1.14 13.5 1.33 15.9 1.34 18.0 1.41 18.5 1.44 21.0 1.49
65 9.0 0.88 11.3 1.09 14.1 1.28 16.5 1.30 18.5 1.37 19.1 1.40 21.4 1.47
MUFZ-KJ18NAHZ
75 9.2 1.14 12.2 1.41 15.2 1.63 18.2 1.69 20.5 1.77 21.1 1.80 23.9 1.87
70 10.0 1.10 12.9 1.37 15.8 1.60 18.6 1.64 21.0 1.73 21.6 1.76 24.5 1.83
65 10.5 1.05 13.2 1.31 16.5 1.55 19.2 1.60 21.6 1.69 22.3 1.71 25.0 1.80
NOTE: 1. IDB: Intake air dry-bulb temperature
TC: Total Capacity (×10
3
Btu/h)
TPC: Total Power Consumption (kW)
2. Above data is for heating operation without any frost.
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 with operational frequency.
3. The fan speed of the indoor unit is High.
4. This operation continues for 30 minutes.
5. In order to release this operation, press the EMERGENCY OPERATION switch twice or once, or press any button on the
remote controller.