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4) There is a gravity drain system used, so the unit shall be installed level or with
a slight slope downward the drain connection and the drain line shall be
installed slope down toward the drain. If rise-up is needed, a condensation
pump must be used.
4. Condensing Unit Installation
CAUTION:
Low ambient condition kit is required if the installation area will be below
50
°
F.
If the condensing unit is equipped with a low ambient condition kit,
do not turn on the compressor until the condensing unit has been powered
for minimum 12 hours.
1) Place the condensing units WM-252~852SCU in a properly ventilated
location. If it is not, heat exhausted by the condensing unit will build up and
the cooling system will not operate properly.
2) Condensing unit shall be elevated to avoid possible
flooding and shaded from direct sun. It shall not be
exposed to temperatures higher than 110 °F or lower than
50 °F.
3)
Leave minimum 5 ft clearance for the exhaust side and
leave minimum 1 foot clearance for the ambient air intake
side.
4) Service valve operations
1 - Process or Manometer
2 – Receiver Discharge or Compressor Suction
3 – Liquid Line or Suction Line
4 - Pressure Control
Back Position
: Normal operation after installation is complete, process or
manometer port is closed.
Front Position
: Storage or shipping operation, liquid or suction line connection
is closed.
Middle Position
: Installation operation, all ports are open for evacuation, charge
and manometer.
BACK POSITION FRONT POSITION MIDDLE POSITION
Fig. 9 ROTALOCK Valve Operation
