40
YORK INTERNATIONAL
MAINTENANCE REQUIREMENTS FOR YORK YS CHILLERS
PROCEDURE
DAILY
WEEKLY
MONTHLY QUARTERLY YEARLY
EVERY 50,000 HOURS
Leak Check and Repair Leaks ***
X
Perform Oil Analysis on Compressor Lube Oil ***
X
Record Operating Pressures and Temperatures
X
Calibrate Safety Controls
X
Replace Oil Filters
X
Replace Filters/Driers
X
Check Slide Valve Operation and
Calibrate Slide Valve Potentiometer
X
Check Operation of Oil Heater
X
Check Oil and Refrigerant Levels
X
Lubricate Motor Bearings per
Motor Manufacturer’s Recommendation
X
Megohm Motor
X
Check 3-Phase Voltage and Current Balance
X
Remove Condenser Water Box(s) and
inspect tube sheets
X
Mechanically Brush Condenser Tubes
X or as
necessary
Verify Evaporator and Condenser
Water Flow Rates vs. Design Conditions
X
Compressor Internal Inspection ***
X
Vibration Analysis
X
*** These procedures 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
