Samsung Electronics
4-4-19. Performing Leak Tests
Before completing the installation (insulation of the hose and piping), you
must check that there are no gas leaks.
4-4-20. Insulation
Once you have checked that there are no leaks in the system, you can
insulate the piping and hose.
1. To avoid condensation problems, place heat-resistant
polyethylene foam separately around each refrigerant pipe.
Note : • Always make the seam of pipes face upwards.
2. Wind insulating tape around the pipes.
3. Finish wrapping insulating tape around the rest of the pipes
leading to the outdoor unit.
4-34
Installation
To check for gas leaks on the... Then, using a leak detector,
check the...
Indoor unit Flare nuts at the end of sections A
and B.
Outdoor unit Valves on sections C and D.
C
D
No gap
Heat resistant polyethylene
foam(Insulation cover pipe)
Insulation
cover pipe
Insulation
inlet/outlet
Be sure to overlap
the insulation
Body
Caution :
Must fit tightly against body
without any gap.
A
B
Duct-ADH1800E-2-2 6/27/00 10:37 AM Page 4-34
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