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 TM 55-1925-273-10-2
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25 30 35
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Figure 4. Refrigerant Piping Valve Locations
START COMPRESSOR
! CAUTION
If the condenser water cooling system has been drained, have unit maintenance purge the air
from the system. Air in the cooling system will reduce cooling efficiency and could result in
damage to the compressor.
To prevent oil return problems and possible damage to the compressor, do not operate both
condensing units at the same time with RFSS13, LIQUID LINE CRSVR CO and RFSS-20,
SUCT LINE CRSVR COV valves open.
To start the compressor, follow this procedure:
1.
OPEN COMPRESSOR SUCTION valve (figure 1, item 3) approximately one full turn.
2.
Immediately, slowly continue to open COMPRESSION SUCTION valve (figure 1, item 3) as suction pressure is re-
duced.
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