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the compressor, leaving it starved for
lubrication.
The compressor life will be seriously
shortened by reduced lubrication and the
pumping of excessive amounts of liquid oil
and refrigerant.
Wiring Diagrams
Unit specific wiring diagrams are laminated
and affixed inside the controls compartment
door.
Condensate Drain Pans
Units require drain p-traps and lines to be
connected to the condensate drain pans of
the unit. The lines should be the same pipe
size or larger than the drain connection,
include a p-trap, and pitch downward toward
drain. An air break should be used with long
runs of condensate lines.
Waterside economizer coil units include a
separate condensate drain pan which drains
into the evaporator coil drain pan. No
additional drain line is needed for the
waterside economizer drain pan.
Unit Size
Units are modular and composed of
combination of the four standard unit sizes,
SA-023, SA-028, SA-030, and SA-035.
Table 1 - SA Series Models
Unit should not be operated without a
p-trap. Failure to install a p-trap may
result in overflow of condensate
water.
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