York YVAA, Installation, Operation & Maintenance Instructions Manual, Page: 164 / 178

JOHNSON CONTROLS
164
SECTION 9 - MAINTENANCE
FORM 201.28-NM1.1
ISSUE DATE: 1/31/2018
PROCEDURE WEEKLY QUARTERLY
SEMI-
ANNUALLY
ANNUALLY
EVERY 5
YEARS
EVERY *
HOURS
Check Oil Level in Oil Separator Sight
Glass.
X
Check Liquid Line Sight Glass/ Moisture
Indicator.
X
Check refrigerant level in the Evaporator
Sight Glass while running full load for 10
to 15 minutes.
X
Record System Operating Temperatures
& Pressures.
X
Check Condenser Coils for dirt / debris
and clean as necessary.
X
Check Programmable Operating
Setpoints and Safety Cutouts. Assure
they are correct for the application.
X
Check Compressor and Evaporator
Heater operation.
X
Check for dirt in the Panel. Check Door
Gasket sealing integrity.
X
**Leak check the Chiller. X
**Sample Compressor Oil, check for Acid,
and replace if necessary.
X
**Disconnect Power Source and Lock
Out. Check tightness of Power Wiring
connections.
X
Check Glycol concentration on Low Temp.
or other applications where freezing may
be a problem.
X
VSD Glycol Change. X
* Reserved for customer use for any special site requirements.
**This procedure must be performed at the specific time by an industry certified technician who has been
trained and qualified to work on this type of equipment. A record of this procedure be successfully carried out should be maintained on file by
the equipment owner should proof of adequate maintenance be required at a later date for warranty purposes.
MAINTENANCE REQUIREMENTS FOR
YVAA CHILLERS