Installation and Commissioning Guide
Classic 2 Outdoor Units
Installation and Commissioning Guide - Classic 2 Split Ducted Outdoor Unit
Doc. No.0525-073 Ver. 8 210414
21
Both pipes are required to be insulated.
A = EQUIVALENT PIPE LENGTH,
60 meters (max)
B = VERTICAL HEIGHT,
20 meters (max)
B
OUTDOOR UNIT
A
FIELD PIPE
(Installer to Supply)
INDOOR UNIT
Example of Total Equivalent Field Pipe Length Calculations
CAUTION
Above illustration shown as calculation examples only. It
is the responsibility of the Installer to design an efficient
refrigeration piping lay out for optimum unit performance.
E
1
OUTDOOR
UNIT
E
2
V
1
H
1
H
2
INDOOR
UNIT
E
3
V
2
H
3
E
4
Equivalent Pipe Length = Total Horizontal Total Vertical Length
+ Total Losses from Elbows
Where:
H = Horizontal Length
V = Vertical Length
E = Elbow Losses
Equivalent Pipe Length = (H
1
+ H
2
+ H
3
) + (V
1
+ V
2
) + (E
1
+ E
2
+ E
3
+ E
4
)
