Download Pinnacle Series Central Chilling Stations

8
8-1
Routine Maintenance
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.
8-2
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 AEC Liquid De-Scaling Solution (AEC 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.
8-3
Evaporator Maintenance
The evaporator(s) may be accessed for back-flushing by removal of the 2” plug (approx. 51 mm)
in the return control nipple and the flow switch in the supply control nipple. If the suggested
piping recommendations have been followed, one circuit of a multiple circuit chiller may be
back-flushed without shutting down the entire system. Check Y-strainer for any clogging.
Pinnacle Series Central Chilling Stations
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