Compressor
base plate
29
installation
Lock washer*
HM 10 Bolt*
Large Flat*
1.06
”
washer
Steel mounting sleeve
Rubber grommet
Nut*
1.4
”
*Not supplied with compressor
Removing connections
shipping plugs
Before suction and discharge plugs are
removed, the nitrogen holding charge
must be released through the suction
Schrader valve to avoid an oil mist
blowout. Remove the suction plug
first, then the discharge plug. Remove
the plugs just before connecting
the compressor to the installation
in order to avoid moisture entering
the compressor. When the plugs are
removed, it is essential to keep the
compressor in an upright position so
as to avoid oil spillage.
system cleanliness
The refrigerant compression system,
regardless of the type of compressor,
will only provide high efficiency, good
reliability, and a long operating life if
the system contains only the refrigerant
and oil for which it was designed.
Other substances in the system will
not improve performance and in most
cases will be very detrimental.
The presence of non-condensables
and system contaminants such as
metal shavings, solder, and flux, have a
negative impact on compressor service
life. Many of these contaminants are
small enough to pass through a mesh
screen and can cause considerable
damage to a bearing assembly. The
use of highly hygroscopic polyolester
oil in R-407C compressors requires that
the oil be exposed to the atmosphere
as little as possible.
System contamination is one of
main factors affecting equipment
reliability and compressor life. It
is important therefore to consider
system cleanliness when assembling a
refrigeration system.
During the manufacturing process,
system contamination may be caused
by:
•
Brazing and welding oxides;
•
Filings and particles from the removal
of burrs in pipe-work;
•
Brazing flux;
•
Moisture and air
tubing
Only use clean and dehydratated
refrigeration grade copper tubing.
Tube cutting must be done so as not
to deform the tubing roundness.
Ensure that no foreign debris remains
in the tubing. Only refrigeration
grade fittings should be used and
these must be selected and sized
to minimize pressure drop in the
completed assembly. Follow the
brazing instructions in the following
pages.
Never drill holes into the pipe-work
after installation.
SY-SZ 240 to 380
Summary of Contents for Performer SM Series
Page 39: ......
