York Millennium YCAS Series, Installation Operation & Maintenance

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YORK INTERNA
TIONAL
PROCEDURE WEEKLY QUARTERLY SEMI-ANNUALLY YEARLY
EVERY
___ HOURS
Check oil level in oil separator sight glass X
Check liquid line sight glass / moisture indicator X
Record system operating pressures and temperatures X
Check programmable operating setpoints and safety cutouts
and assure they are correct for particular application.
X
Check condenser coils for dirt/debris and clean if necessary X
Check compressor superheat on evaporator and economizer
TXVs; Check condenser and economizer subcooling 1
X
Check compressor and cooler heaters for operation X
Sample compressor oil and replace oil if necessary 1 X
Leak check the chiller 1 X
Disconnect power source and lock out; Check tightness of
power wiring connections 1
X
MAINTENANCE REQUIREMENTS FOR YORK YCAS SCREW CHILLERS
*
* Reserved for customer use for any special site determined requirements.
1
This procedure must be performed at the specified time interval by an Industry Certified Technician who has been trained and qualified to work on this type of YORK
equipment. A record of this procedure being successfully carried out must be maintained on file by the equipment owner should proof of adequate maintenance be
required at a later date for warranty validation purposes.
Maintenance