Bard QW242, Руководство по установке

Страница: 43 / 48

Manual 2100-419E
Page
43 of 48
SERVICE
SERVICE HINTS
1. Maintain clean air filters at all times. Also, do not to
needlessly close off supply and return air registers.
This reduces air flow through the system, which
shortens equipment service life as well as increasing
operating costs.
2. Check all power fuses or circuit breakers to be sure
that they are the correct rating.
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.