
3
IMPORTANT INFORMATION
While these items will not cover every concievable
situaon, they should serve as a usefull guide.
The successful development of hermecally sealed
refrigeraon compressors has completely sealed the
compressor’s moving parts and electric motor inside a
common housing, minimizing refrigerant leaks and the
hazards somemes associated with moving belts, pulleys
or couplings.
Fundamental to the design of hermec compressors
is a method whereby electrical current is transmied
to the compressor motor through terminal conductors
which pass through the compressor housing wall. These
terminals are sealed in a dielectric material which insulates
them from the housing and maintains the pressure ght
integrity of the hermec compressor. The terminals and
their dielectric embedment are strongly constructed,
but are vulnerable to careless compressor installaon
or maintenance procedures and equally vulnerable to
internal electrical short circuits caused by excessive system
contaminants.
In either of these instances, an electrical short between
the terminal and the compressor housing may result in
the loss of integrity between the terminal and its dielectric
embedment. This loss may cause the terminals to be
expelled, thereby venng the vaporous and liquid contents
of the compressor housing and system.
A venng compressor terminal normally presents no
danger to anyone, providing the terminal protecve cover
is properly in place.
If, however, the terminal protecve cover is not properly in
place, a venng terminal may discharge a combinaon of
A. hot lubricang oil and refrigerant
B. ammable mixture (if system is contaminated
with air)
in a stream of spray which may be dangerous to anyone in
the vicinity. Death or serious bodily injury could occur.
Under no circumstances is a hermec compressor to be
electrically energized and/or operated without having the
terminal protecve cover properly in place.
See Service Secon S-17 for proper servicing.