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6.3.4 Refrigerant Line Leak Test
IOM
IOM
Test for leak
•
Pressurize the refrigerant lines and
evaporator coil to 350-400 PSIG using dry
nitrogen (Fig. 19). The nitrogen pressure
must be maintained for few minutes.
•
If pressure decay is observed,
it is an indication of leak(s).
•
Check for leaks by using a soap
solution at each brazed joint (Fig. 20).
6.3.5 Refrigerant Line Insulation
•
The Vapor Line must always
be insulated (Fig. 21).
•
DO NOT allow the liquid line and
vapor line to come in direct (metal
to metal) contact to each other.
W415-2973 / B / 07.18.22
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