Correction Of Cooling And Heating Capacity In Relation To Air Flow Rate Control (Fan Speed); Correction Of Cooling And Heating Capacity In Relation To One Way Length Of Refrigerant Piping; Height Difference Between The Indoor Unit And Outdoor Unit - Mitsubishi Heavy Industries FDTC40ZSXVF Technical Manual

100 model
125 model
140 model
Equivalent piping length (m)
9.2 Correction of cooling and heating capacity in relation to air flow rate control
9.2 Correction of cooling and heating capacity in relation to air flow rate control
Heating
(fan speed)
9.2 Correction of cooling and heating capacity in relation to air flow rate control
(fan speed) 71 model
(fan speed) 100 model
Fan speed
Fan speed
125 model
Coefficient
Fan speed
Coefficient 140 model
Cooling Note (1) SRK series only.
Coefficient 71 model
Note (1) SRK series only.
100 model
Note (1) SRK series only.
9.3 Correction of cooling and heating capacity in relation to one way length of
125 model
9.3 Correction of cooling and heating capacity in relation to one way length of
refrigerant piping
140 model
9.3 Correction of cooling and heating capacity in relation to one way length of
refrigerant piping
Note (1) Calculate the equivalent length using the following formula.
It is necessary to correct the cooling and heating capacity in relation to the one way equivalent piping length between the indoor
refrigerant piping
However, install the piping so that the piping length is within +5 m of the limit length (actual length) for the respective types.
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.
and outdoor units.
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.
• Equivalent length =Actual length + (Equivalent bend length x number of bends in the piping.)
Piping length (m)
Equivalent length per bend. (Model 71-140 only)
Piping length (m)
Cooling
Piping length (m) Cooling
Gas pipe diameter (mm)
Heating
Heating
Cooling
Equivalent bend length
(2) Models 71-140
Heating
(2) Models 71-140
Equivalent piping length (m)
(2) Models 71-140
Equivalent piping length (m)
Heating

9.4 Height difference between the indoor unit and outdoor unit

Heating
Equivalent piping length (m)
71 model
When the outdoor unit is located below indoor units in cooling mode, or when the outdoor unit is located above indoor units in Heating 71 model
100 model
heating mode, the correction coefficient mentioned in the below table should be subtracted from the value in the above table.
100 model
71 model
125 model
125 model
100 model
140 model
Height difference between the indoor unit and
Cooling
140 model
125 model
71 model
outdoor unit in the vertical height difference
Cooling
140 model 71 model
100 model
Cooling
Adjustment coefficient
100 model
71 model
125 model
125 model
100 model
140 model
Piping length limitations
140 model
125 model
140 model
Equivalent piping length (m)
Equivalent piping length (m)
Item Heating
Heating
Equivalent piping length (m)
71 model
Max. one way piping length
Heating 71 model
100 model
100 model
71 model
125 model
Max. vertical height difference
125 model
100 model
140 model
Cooling
140 model
125 model
71 model
Note (1) Values in the table indicate the one way piping length between the indoor and outdoor units.
Cooling
71 model
140 model
100 model
Cooling
100 model
71 model
125 model
How to obtain the cooling and heating capacity
125 model
100 model
140 model
140 model
125 model
Note (1) Calculate the equivalent length using the following formula.
Example : The net cooling capacity of the model FDTC40ZSXVF with the air flow "P-Hi", the piping length of 15m, the outdoor unit
140 model
Note (1) Calculate the equivalent length using the following formula. However, install the piping so that the piping length is within +5 m of the limit length (actual length) for the respective types.
located 5m lower than the indoor unit, indoor wet-bulb temperature at 19.0℃ and outdoor dry-bulb temperature 35℃ is
However, install the piping so that the piping length is within +5 m of the limit length (actual length) for the respective types.
Note (1) Calculate the equivalent length using the following formula.
However, install the piping so that the piping length is within +5 m of the limit length (actual length) for the respective types.
Net cooling capacity =
• Equivalent length =Actual length + (Equivalent bend length x number of bends in the piping.)
• Equivalent length =Actual length + (Equivalent bend length x number of bends in the piping.) Equivalent length per bend. (Model 71-140 only)
Equivalent length per bend. (Model 71-140 only)
• Equivalent length =Actual length + (Equivalent bend length x number of bends in the piping.)
Gas pipe diameter (mm)
Equivalent length per bend. (Model 71-140 only) Net cooling total capacity
Gas pipe diameter (mm)
Equivalent bend length
of FDTC40ZSXVF
Gas pipe diameter (mm)
Equivalent bend length
(Outdoor temp. : 35℃DB
Indoor temp. : 19℃WB)
Equivalent bend length
shown in table 9.1
9.4 Height difference between the indoor unit and outdoor unit
9.4 Height difference between the indoor unit and outdoor unit
When the outdoor unit is located below indoor units in cooling mode, or when the outdoor unit is located above indoor units in
9.4 Height difference between the indoor unit and outdoor unit
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.
heating mode, the correction coefficient mentioned in the below table should be subtracted from the value in the above table.
When the outdoor unit is located below indoor units in cooling mode, or when the outdoor unit is located above indoor units in
Height difference between the indoor unit and
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
outdoor unit in the vertical height difference
Height difference between the indoor unit and
Adjustment coefficient
outdoor unit in the vertical height difference
Adjustment coefficient
Adjustment coefficient
1.016
φ19.05
1.022
1.026
(1)
60
0.983
ー
0.856
P-Hi Me Lo
φ15.88
P-Hi Me Lo
0.806
1.00 0.97 0.95
P-Hi Me Lo
1.00 0.97 0.95
0.790
1.00 0.97 0.95
ー
0.959
φ19.05
0.935
0.928
7 10 15 20 25
7 10 15 20 25
1 0.99 0.975 0.965 0.95 0.935
1 0.99 0.975 0.965 0.95 0.935
7 10 φ 12.7 15 20 φ 15.88 25
1 1 1 1 1
1 1 1 1 1
1 0.99 0.975 0.965 0.95 0.935
0.20 0.25
1 1 1 1 1
(1)
7.5
(1)
7.5
1
1
(1)
7.5
1
1
1
1
φ15.88
1
1
1
φ15.88
1
1
1
φ15.88
1
1
1.008
1.008
1
1.016
φ19.05
1.016
1.008
1.022
φ19.05
1.016 1.022
1.026
φ19.05
1.026
1.022
1.026
(1)
60
Capacity
(1)
60
0.983
0.983
(1)
60
ー
0.983
ー
0.856
φ15.88
0.856
ー
Outdoor unit is higher 20m
0.806
φ15.88
0.806
Outdoor unit is lower 20m
0.856
0.790
φ15.88
0.790
0.806
ー
0.790
ー
0.959
φ19.05
0.959
ー
0.935
φ19.05
0.935
0.959
0.928
φ19.05
0.928
0.935
0.928
×
4.0 1.00
φ 12.7 φ 15.88
Air flow : P-High
φ 12.7 φ 15.88
0.20 0.25
shown in table 9.2
φ 12.7 φ 15.88
0.20 0.25
0.20 0.25
1.007 1.002 0.996
1.013
1.018 1.009 1.001 0.992
1.021 1.011 1.002 0.992
65 70 75 80
0.983 0.978 0.978 0.973
ー ー ー ー
0.843 0.829 0.816 0.803
0.788 0.770 0.752 0.734
0.771 0.751 0.732 0.712
ー ー ー ー
0.955 0.951 0.948 0.944
0.929 0.924 0.919 0.912
0.920 0.913 0.907 0.900
30
30
30 φ 19.05
1
1
0.30
1
10 15 20 25
10 15 20 25
1 1 1 1
1 1 1 1
10 15 20 25
0.996 0.989 0.982 0.975
0.996 0.989 0.982 0.975
1 1 1 1
0.991 0.978 0.964 0.951
0.991 0.978 0.964 0.951
0.996 0.989 0.982 0.975
0.968 0.950
0.986 0.932
0.986 0.978 0.968 0.950 0.964 0.951 0.932
0.991
0.985 0.966 0.946 0.927
5m 10m
0.985 0.966 0.946 0.927
0.986 0.968 0.950 0.932
1.006 1.003 1 0.997
1.006 1.003 1 0.997
0.985 0.966 0.946 0.927
1.013 1.007 1.002 0.996
0.99 0.98
1.013 1.007 1.002 0.996
1.006 1.003 1 0.997
1.009 1.001 0.992
1.018
1.009
1.018 1.007 1.002 1.001 0.996 0.992
1.013
1.021 1.011 1.002 0.992
1.021 1.011 1.002 0.992
1.018 1.009 1.001 0.992
1.021 1.011 1.002 0.992
65 70 75 80
40, 50, 60
65 70 75 80
0.983 0.978 0.978 0.973
0.983 0.978 0.978 0.973
65 70 75 80
ー ー ー ー
30m
0.983 0.978 0.978 0.973
ー ー ー ー
0.843 0.829 0.816 0.803
0.843 0.829 0.816 0.803
ー ー ー ー
0.788 0.770 0.752 0.734
0.788 0.770 0.752 0.734
0.843 0.829 0.816 0.803
0.771 0.751 0.732 0.712
0.771 0.751 0.732 0.712
0.788 0.770 0.752 0.734
ー ー ー ー
0.771 0.751 0.732 0.712
ー ー ー ー
0.955 0.951 0.948 0.944
0.955 0.951 0.948 0.944
ー ー ー ー
0.929 0.924 0.919 0.912
0.929 0.924 0.919 0.912
0.955 0.951 0.948 0.944
0.920 0.913 0.907 0.900
0.920 0.913 0.907 0.900
0.929 0.924 0.919 0.912
0.920 0.913 0.907 0.900
× ×
0.975 0.99
φ 19.05
φ 19.05
0.30
φ 19.05
0.30
Piping length :15m
0.30
φ
(Gas pipe size is 15.88)
shown in table 9.3
5m 10m
5m 10m
5m 10m
0.99 0.98
0.99 0.98
0.99 0.98
44
- -
0.991 0.985 0.980 0.974
'10 • PAC-DB-136
0.984 0.975 0.967 0.958
'10 • PAC-DB-136
0.983 0.973 0.964 0.954
'17 • PAC-T-256
'10 • PAC-DB-136
85 90 95 100
0.973 0.968 0.968 0.963 0.963
ー ー ー ー
0.789 0.776 0.762 0.749 0.736
0.716 0.698 0.680 0.662
0.693 0.673 0.654 0.634
ー ー ー ー
0.940 0.936 0.932 0.929 0.926
0.908 0.902 0.897 0.892 0.887
0.894 0.888 0.882 0.876 0.870
30 35 40 45
30 35 40 45
0.998 0.998 0.993 0.993
0.998 0.998 0.993 0.993
30 35 40 45
0.968 0.961 0.954 0.947
0.968 0.961 0.954 0.947
0.998 0.998 0.993 0.993
0.937 0.924 0.910 0.897
0.937 0.924 0.910 0.954 0.897
0.968 0.961 0.947
0.914 0.896 0.878 0.860
0.914 0.896 0.878 0.860
0.937 0.924 0.910 0.897
0.907 0.888 0.868 0.849
'10 • PAC-DB-136
15m 20m 25m
0.907 0.888 0.868 0.849
0.914 0.896 0.878 0.860
0.994 0.991 0.988 0.985
0.994 0.991 0.988 0.985
0.907 0.888 0.868 0.849
0.980
0.991 0.985 0.974
0.97 0.96 0.95
0.991 0.985 0.980 0.988 0.985 0.974
0.994 0.991
0.984 0.975 0.967 0.958
0.984 0.975 0.967 0.958
0.991 0.985 0.980 0.974
0.983 0.973 0.964 0.954
0.983 0.973 0.964 0.954
0.984 0.975 0.967 0.958
0.983 0.973 0.964 0.954
85 90 95 100
85 90 95 100
0.973 0.968 0.968 0.963 0.963
0.973 0.968 0.968 0.963 0.963
85 90 95 100
ー ー ー ー
0.973 0.968 0.968 0.963 0.963
ー ー ー ー
0.789 0.776 0.762 0.749 0.736
0.789 0.776 0.762 0.749 0.736
ー ー ー ー
0.716 0.698 0.680 0.662
0.716 0.698 0.680 0.662
0.789 0.776 0.762 0.749 0.736
0.693 0.673 0.654 0.634
0.693 0.673 0.654 0.634
0.716 0.698 0.680 0.662
ー ー ー ー
0.693 0.673 0.654 0.634
ー ー ー ー
0.940 0.936 0.932 0.929 0.926
0.940 0.936 0.932 0.929 0.926
ー ー ー ー
0.908 0.902 0.897 0.892 0.887
0.908 0.902 0.897 0.892 0.887
0.940 0.936 0.932 0.929 0.926
0.894 0.888 0.882 0.876 0.870
0.894 0.888 0.882 0.876 0.870
0.908 0.902 0.897 0.892 0.887
0.894 0.888 0.882 0.876 0.870
. = . 3.9kW
Height diff. :5m
(Outdoor unit : below)
shown in table 9.4
15m 20m 25m
15m 20m 25m
15m 20m 25m
0.97 0.96 0.95
0.97 0.96 0.95
0.97 0.96 0.95
0.969 0.963
0.950 0.941
0.945 0.935
105
ー
0.644
0.615
ー
50 55
50 55
0.988 0.988
0.988 0.988
50 55
0.940 0.933
0.940 0.933
0.988 0.988
0.870
0.883
0.883 0.933 0.870
0.940
0.842 0.824
0.842 0.824
0.883 0.870
0.829 0.810
30m
0.829 0.810
0.842 0.824
0.982 0.979
0.982 0.979
0.829 0.810
0.963
0.969
0.94
0.969 0.963 0.979
0.982
0.950 0.941
0.950 0.941
0.969 0.963
0.945 0.935
0.945 0.935
0.950 0.941
0.945 0.935
105
105
105
ー
ー
ー
0.644
0.644
0.615
0.615
0.644
ー
0.615
ー
ー
30m
30m
30m
0.94
0.94
0.94