Johnson Controls YVAHP036B21S, Engineering Manual

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SELECTION DATA
TC-16001-rev.5
4-11
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
CC: Cooling Capacity in the Performance Table
F: Correction Factor Based on the Equivalent Piping Length
The correction factors are shown in the figure.
Equivalent Piping Length for
• One 90
o
Elbow is 1.6ft (0.5m).
• One 180
o
Bend is 4.9ft (1.5m).
• One Multi-Kit is 1.6ft (0.5m).
4.3 Correction Factor According to Piping Length
< Cooling Capacity >
H: Vertical Distance Between Indoor Unit and Outdoor Unit
EL: Equivalent Total Distance Between Indoor Unit and
Outdoor Unit (Equivalent One-Way Piping Length)
H>0: Position of Outdoor Unit Higher Than Position of Indoor Unit
L: Actual One-Way Piping Length Between Indoor Unit and
Outdoor Unit
* Liquid piping size for Equivalent Piping Length < 328ft [100m] and Equivalent Piping Length ≥ 328ft [100m]
are different. Refer to the “Installation Manual for Outdoor Unit” or Section 2.14.2 “Piping Size and Multi-Kit
Selection” for details.
Models: (H,Y,C)VAHP036B21S, (H,Y,C)VAHP048B21S, (H,Y,C)VAHP060B21S
0
50
[15] [31] [46] [61] [76] [92]
100 150 200 250 300 350
[107]
400
[122]
450
[137]
500
[153]
550
[168]
600
[183]
25 [8]
50 [15]
75 [23]
-25 [-8]
-50 [-15]
623
[190]
100 [31]
125 [38]
150 [46]
-75 [-23]
-100 [-31]
-125 [-38]
-131 [-40]
164 [50]
100%
96%
96%
92% 88% 84% 80% 76%
92% 88% 84% 80% 76% 72% 68%
H (ft [m])
EL (ft [m])
Standard
One size up
-H
L
Indoor Unit
Unit
Outdoor
+H
L
Outdoor Unit
Unit
Indoor