Design and Technical Manual

2. MODEL SELECTION
CAPACITY COMPENSATION COEFFICIENT5.
COMPENSATION COEFFICIENT OF PIPE LENGTH5-1.
The gures give the compensation coefcient of pipe length owing to installation position.
Total compensation coefcient of pipe length multiplies compensation coefcient of branch
piping by compensation coefcient of main piping.
"Total compensation coefcient = main piping x branch piping"
*1
*1: Branch piping use the value of the longest piping length.
CAPACITY CHANGE RATE BY MAIN PIPING LENGTH

Change rate in capacity
z
Main piping length
ft. 16.4 32.8 49.2 65.6 82.0 98.4 114. 8 131.2 147.6 164.0 180.4
m 5 10 15 20 25 30 35 40 45 50 55
Change rate in
cooling capacity
% 100 98.0 96.0 94.0 92.0 90.0 88.0 86.0 84.0 82.0 80.0
Change rate in
heating capacity
% 100 99.6 99.2 98.9 98.5 9 8.1 97.7 97. 3 97. 0 96.6 96.2
0
0 16.4 32.8 49.2 180.4 ft.
m
164.0147.6131.2114. 898.482.065.6
55504540353025201510
75
80
85
90
95
100
5
Change rate in capacity (%)
Main piping length
Cooling
Heating
- (02 - 17) -
MODEL SELECTION MODEL SELECTION