Service; Unbrazing System Components - Bard QW Series Installation Instructions Manual

UNBRAZING SYSTEM COMPONENTS

If the refrigerant charge is removed from a scroll
equipped unit by bleeding the high side only, it is
sometimes possible for the scrolls to seal, preventing
pressure equalization through the compressor. This
may leave low side shell and suction line tubing
pressurized. If the brazing torch is then applied to
the low side while the low side shell and suction line
contains pressure, the pressurized refrigerant and oil
mixture could ignite when it escapes and contacts
the brazing flame. To prevent this occurrence, it is
important to check both the high and low side with
manifold gauges before unbrazing.
WARNING
Both the high and low side of the scroll
compressor must be checked with manifold
gauges before unbrazing system components.
Failure to do so could cause pressurized
refrigerant and oil mixture to ignite if it escapes
and contacts the brazing flame causing
property damage, bodily harm or death.

SERVICE

Manual 2100-577C
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