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Installation
SiEN34-705
24
General Information
Covering of
Refrigerant Pipes
Covering is an extremely important operation as it prevents water, dirt or dust from
getting inside the pipes.
Moisture inside the pipes was a constant source of trouble in the
past. The utmost care is required to nip this problem in the bud.
The end of each pieces of pipe must be covered.
“Pinching” is the most effective method but
“taping” is an simple alternative which may be used according to the work area and term of
work.
1. Pinching method
The end of the copper pipe is squeezed together and the gap brazed.
2. Taping method
The end of the copper pipe is covered with PVC tape (vinyl tape).
<Taping method>
Particular care should be taken during the following operations:
!
When passing copper pipe through a penetration hole (Dirt easily gets into the pipe).
!
When copper pipe is located outside (Rainwater gets in)
(Special care is needed when the pipes are standing vertically outside).
Location
Term of Work
Covering Method
Outdoors
1 months or more
Pinching
Less than 1 months
Pinching or taping
Indoors
Irrelevant
Pinching or taping
Copper pipe
Brazed
Brazing area
Copper
pipe
Open end
Squeeze flat
PVC tape
Bring tape back
to starting point
Tape round
pipe again
Outdoors
Through hole
Indoors
Stored piping should
also be covered
Covering of
pipe ends