CAPACITIES TABLE
3-3
3.2. CORRECTION FACTORS ACCORDING TO PIPING LENGTH
Correction Factor for
Cooling Capacity
according to
Piping Length
The cooling capacity should be corrected according to the
following formula:
CCA = CC x F
CCA: Actual Corrected Cooling Capacity
(kcal/h)
CC: Cooling Capacity in the Performance
Table (kcal/h)
F:
Correction Factor Based on the
Equivalent Piping Length
Correction Factor for
Heating Capacity
according to
Piping Length
The heating capacity should be corrected according to the
following formula:
HCA= HC x F
HCA: Actual Corrected Heating Capacity
(kcal/h)
HC: Heating Capacity in the Performance
Table (kcal/h)
F:
Correction Factor Based on the
Equivalent Piping Length
The correction factors are shown in the following figure.
Equivalent Piping Length for:
– One 90º Elbow is 0.5m.
– One 180º Curve is 1.5m.
H:
Vertical Distance Between Indoor Unit and Outdoor
Units in Meters
L:
Actual One-Way Piping Length Between Indoor Unit
and Outdoor Unit in Meters
EL:
Equivalent Total Distance Between Indoor Unit and
Outdoor Unit in Meters
(Equivalent One-Way Piping Length)
Models : RAK-18PS
-18WS
-25PS
-25WS
-35PS
-35WS
C/RAC
C, RAK
C/RAC
C, RAK
C/RAC
C
C
ool
in
g C
han
ge R
a
ti
o
H
eat
ing
C
han
ge R
at
io
Pipe length (m)
Pipe length (m)
0.6
0.7
0.8
0.9
1.0
0
5
10
15
20
0.6
0.7
0.8
0.9
1.0
0
5
10
15
20
H
L