Johnson Controls (H, Engineering Manual

Page: 121 / 124

SELECTION DATA
TC-16006
4-17
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
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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
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Refer to Installation Manual or Engineering Manual for details.
-H
L
Indoor Unit
Unit
Outdoor
+H
L
Outdoor Unit
Unit
Indoor