Mitsubishi FDC121KXZEN1-W - Page 140

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138
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'20 • KX-T-373
(d) Correction of heating capacity in relation to the frost on the outdoor unit heat exchanger
(c) When the outdoor unit is located at a lower height than the indoor unit in cooling operation and when
the outdoor unit is located at a higher height than the indoor unit in heating operation, the following
values should be subtracted from the values in the above table.
The correction factors will change drastically according to weather conditions. So necessary adjustment should
be made empirically according to the weather data of the particular area.
Height difference between the indoor unit and
outdoor unit in the vertical height difference
Adjustment coefficient
15 m
0.97
10 m
0.98
5 m
0.99
20 m
0.96
25 m
0.95
30 m
0.94
(e) The capacity compensation coefficient and power consumption compensation coefficient vary
according to the total capacity of concurrently operating indoor units, as shown below.
-11
0.95
-13
0.96
-20
0.96
-15
0.96
-9
0.94
-7
0.93
-5
0.91
-3
0.88
-1
0.86
1
0.87
3
0.92
5 or more
1
Air inlet temperature of
outdoor unit in ˚C WB
Adjustment coefficient
Capacity compensation coefficient
Power consumption compensation coeffcient
Heating
Heating
Cooling
Cooling
0.40
0.50
0.60
0.70
0.80
0.90
1.00
1.10
1.20
0 20 40 60 80
100
120
140
160
Total capacity of concurrently operating indoor units (%)
Capacity compensation coefficient
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.00
1.10
0 20 40 60 80 100 120 140 160
Total capacity of concurrently operating indoor units (%)
Capacity compensation coefficient
0.40
0.50
0.60
0.70
0.80
0.90
1.00
1.10
0 20 40 60 80 100 120 140 160
Total capacity of concurrently operating indoor units (%)
Power consumption compensation coefficient
0.20
0.40
0.60
0.80
1.00
1.20
1.40
0 20 40 60 80 100 120 140 160
Total capacity of concurrently operating indoor units (%)
Power consumption compensation coefficient