-
201
-
'12 • PAC-T-173
1.9.2 Correction of cooling and heating capacity in relation to air flow rate control
(fan speed)
1.9.3 Correction of cooling and heating capacity in relation to one way length of
refrigerant piping
It is necessary to correct the cooling and heating capacity in relation to the one way equivalent piping length between the indoor
and outdoor units.
Note (1) Calculate the equivalent length using the following formula.
However, install the piping so that the piping length is 5 m of the limit length (actual length) for the respective types.
• Equivalent Length =Actual (Equivalent bend length x number of bends in the piping.)
Equivalent length per bend. (Model 71-140 only)
(1) Models 40-60
(2) Models 71-140
0.20
0.25
0.30
Gas Pipe Diameter (mm)
Equivalent Bend Length
㱢
19.05
㱢
15.88
㱢
12.7
1.00
0.97
0.95
Fan speed
Coefficient
Lo
Me
P-Hi or Hi
(
1
)
55
0.988
0.933
0.870
0.824
0.810
0.979
0.963
0.941
0.935
40
45
50
0.993
0.954
0.910
0.878
0.868
0.988
0.980
0.967
0.964
0.993
0.947
0.897
0.860
0.849
0.985
0.974
0.958
0.954
0.988
0.940
0.883
0.842
0.829
0.982
0.969
0.950
0.945
30
35
0.998
0.968
0.937
0.914
0.907
0.994
0.991
0.984
0.983
0.998
0.961
0.924
0.896
0.888
0.991
0.985
0.975
0.973
15
20
25
1
0.989
0.978
0.968
0.966
1.003
1.007
1.009
1.011
1
0.982
0.964
0.950
0.946
1
1.002
1.001
1.002
1
0.975
0.951
0.932
0.927
0.997
0.996
0.992
0.992
7.5
10
1
1
1
1
1
1.008
1.016
1.022
1.026
1
0.996
0.991
0.986
0.985
0.680
0.654
0.662
0.634
0.644
0.615
0.716
0.693
0.698
0.673
0.770
0.751
0.752
0.732
0.734
0.712
0.788
0.771
0.806
0.968 0.963 0.963
0.973 0.968
0.978 0.978 0.973
0.983
0.983
0.762 0.749 0.736
0.789 0.776
0.829 0.816 0.803
0.843
0.856
0.932 0.929 0.926
0.940 0.936
0.951 0.948 0.944
0.955
0.959
0.897 0.892 0.887
0.908 0.902
0.924 0.919 0.912
0.929
0.935
0.882 0.876 0.870
0.894 0.888
0.913 0.907 0.900
0.920
0.928
0.790
1.006
1.013
1.018
1.021
Equivalent piping length (m)
Cooling
Heating
71 model
100 model
125 model
140 model
71 model
100 model
125 model
140 model
Ǿ
15.88
Ǿ
19.05
(1)
105
90
95
100
80
85
65
70
75
60
Equivalent piping length (m)
Cooling
Heating
71 model
100 model
125 model
140 model
71 model
100 model
125 model
140 model
Ǿ
15.88
Ǿ
19.05
(1)
Note (1) Models FDU and SRK models only.
5m
10m
15m
20m
25m
30m
0.99
0.98
0.97
0.96
0.95
0.94
When the outdoor unit is located below indoor units in cooling mode, or when the outdoor unit is located above indoor units in
heating mode, the correction coefficient mentioned in the below table should be subtracted from the value in the above table.
Height difference between the indoor unit and
outdoor unit in the vertical height difference
1.9.4 Height difference between the indoor unit and outdoor unit
Adjustment coefficient
7
10
15
20
25
30
1
1
1
1
1
1
1
0.99 0.975 0.965 0.95 0.935
Piping length (m)
Heating
Cooling
Summary of Contents for FDC Series
Page 95: ... 94 12 PAC T 173 Models FDT100VF 125VF 140VF H H H H H C B A F G D G PJF000Z285 ...
Page 98: ... 97 12 PAC T 173 Models FDEN60VF 71VF C 2 C 1 A B A B D C 1 C 2 C 1 C 2 E G F B PFA003Z817 ...
Page 113: ... 112 12 PAC T 173 b Wireless remote controller RCN E1R 60 17 150 Unit mm ...
Page 278: ... 277 12 PAC T 173 ー K ...
Page 346: ... 345 12 PAC T 173 Power PCB 1BSU OVNCFS 4GRNCEG VJG 2 ...
Page 518: ... 517 12 PAC T 173 3 5 SUPER LINK E BOARD SC ADNA E F SL2NA E and SL3N AE BE to control ...
Page 519: ... 518 12 PAC T 173 ...
