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D
C
- R
UAL
YCLE
EFRIGERATED
Unit Installation
P
I
IPE
NSTALLATION
WARNING
This paragraph describes the necessary steps for setting the unit into operation. Be sure to
follow the instructions, to assure proper functioning of the air conditioner.
The outdoor unit is pre-charged with the correct amount of refrigerant. In extended runs, for
additional refrigerant charge please refer to the outdoor unit name plate. This process shall be
performed only by qualified refrigeration technicians with a professional charging set.
Flare Preparation
a) Cut the tube, using a tube cutter.
Make sure that the cut is perpendicular
to the tube axis. Ensure the pipe is de-
burred and free of metal shavings
b) Slip the flare-nut over the tube, secure
the tube in the flaring tool and perform
the flare on the tube end. The tube
projection length (A) from the flaring
block varies with tube diameter and
shall be set as indicated in the table.
c) Apply few drops of refrigeration oil to
the tube before flaring.
Flare Depth (A)
A (mm)
1.3
1.9
2.1
Pipe Welding Preparation
The indoor / outdoor unit final connections are made using flared couplings. Where welded
joints are required the following are the requirements.
1. Keep piping capped at ends when storing, handling and installing.
2. Use locally supplied, sealed, clean, refrigeration grade copper piping only.
3. Using a flat surface, hold down the pipe at one and roll out the requirements.
NOTE: Take care not to dent, flatten or damage the pipe.
4. Use only a rotating wheel pipe cutter to cut the tube.
5. Use only a de-burring tool to de-bur the pipe ends.
Pipe Welding
Take care when using brazing flame torch, ensure that hot pipes or flame do
not cause a fire
1. Use quality brazing rod suitable for copper to copper joins on refrigeration grade tubing.
Installation Instructions
C
C
OOLING
OMPONENT
TUBE OD
9.58mm (⅜")
15.88mm (⅝")
19.05mm (¾")
1. Copper Tube
2.
Flaring Tool
Page 15
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