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Page 64 of 77 SCW Series Central Chilling Stations
9 Routine Maintenance
9-1 Lubrication
Grease all fan bearings, fan motors, and pump motors that do not
have permanently sealed bearings. Remove the grease relief plug
(motors only) before adding grease. Failure to do so may
dislodge the bearing grease retainer which will eventually
cause bearing failure.
Lubricate components regularly, based only on the component
manufacturer’s specifications for frequency and lubricant.
Compressors require a special scroll oil (Suniso 3GSA or
equivalent); failure to use this oil when lubricating will void the
warranty.
9-2 Condenser Maintenance
Dirty condenser heat exchange surfaces reduce system capacity.
Inspect and clean as needed.
Remote Air-Cooled
Brush or vacuum light dirt accumulations. Avoid bending or
damaging the fins. Heavy soil accumulations on the coil require
professional steam cleaning by a qualified refrigeration service
technician. Washing from the outside will only make matters
worse.
Water-Cooled
Proper water treatment will greatly reduce cleaning intervals.
Remove dirt in the condenser tubes with a nylon tube brush.
Mineral deposits can be removed by circulating Sterling Liquid
De-Scaling Solution (Sterling Model Number A0502600)
through the water side of the condenser. Follow the directions on
the container.
The refrigerant side is sealed and requires no routine maintenance.