Installation and Commissioning Guide - Advance Split Ducted Outdoor Unit
Doc. No.0525-085 Ver. 2 22xxxx
Installation and Commissioning Guide
Advance Outdoor Units
20
PRELIMINARY DATA ONLY
Ver. 2.04 220704
THIS LABEL TO BE REMOVED ON SIGN-OFF
Selected field pipe sizes must match the recommended sizes in Tables on Refrigeration Piping in the Specification for
Refrigeration Section. If the installation requires different field pipe diameter due to different application condition other
than recommended, contact ActronAir for advice.
Most of unit pipe connections are factory swagged to easily fit to the recommended field pipe diameter.
When it is required to install other refrigeration devices, such as refrigerant drier, solenoid valve and the like, include
the equivalent straight pipe length of the device in the calculation of total equivalent field pipe length and mechanical
connections shall be accessible for maintenance purposes.
Both pipes are required to be insulated.
A = EQUIVALENT PIPE LENGTH,
60 metres (max)
B = VERTICAL HEIGHT,
20 metres (max)
B
OUTDOOR
UNIT
INDOOR UNIT
A
FIELD PIPE
(Installer to Supply)
NOTE
All drawings are for illustration purposes only.
Actual unit may vary depending on the model.
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
2
V
1
H
2
E
3
INDOOR
UNIT
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
)
E
1
H
1
