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REFRIGERATION INSTALLATIONS LIMITED
Unit D9 Newton Business Park
Cartwright Street
Hyde
Cheshire SK14 4EH
Telephone: +44 (0)161 366 1110
Fax: +44 (0)161 366 1190
10.6 Compressor Replacement (Continued)
10.6.8 Fit a new compressor complete with a Schrader valve on
the suction pipe and re-connect the second suction pipe and the
discharge pipe as originally fitted.
10.6.9 Connect an oxygen (O
) free nitrogen (N
) supply to the
2
2
Schrader valve and force N
gas through the system and check
2
that N
is released from the bottom of the condenser and the
2
capillary.
10.6.10 Fit a new drier.
10.6.11 Strength and leak test with O
free N
to 175psi.
2
2
10.6.12 Visually check all joints for quality and leak test them using
leak detector fluid. Remake any suspect or leaking joints and
repeat the checking process.
10.6.13 If there are no leaks release the N
from the system,
2
connect up to a vacuum pump and evacuate to 2 Torr.
10.6.14 Re-charge the system with 80gm. of R134a refrigerant.
D ocument Reference: WI 9
Page 23 of 23
Issue 02
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