YVAA Style A Air-Cooled Screw Liquid Chillers ... - Johnson Controls
YVAA Style A Air-Cooled Screw Liquid Chillers ... - Johnson Controls
YVAA Style A Air-Cooled Screw Liquid Chillers ... - Johnson Controls
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SECTION 9 - MAINTENANCE<br />
132<br />
PROCEDURE WEEKLY QUARTERLY<br />
Check Oil Level in Oil Separator<br />
Sight Glass.<br />
Check <strong>Liquid</strong> Line Sight Glass/<br />
Moisture Indicator.<br />
Check refrigerant level in the Evaporator<br />
Sight Glass while running<br />
full load for 10 to 15 minutes.<br />
Record System Operating Temperatures<br />
& Pressures.<br />
Check Condenser Coils for dirt /<br />
debris and clean as necessary.<br />
Check Programmable Operating<br />
Setpoints and Safety Cutouts. Assure<br />
they are correct for the application.<br />
Check Compressor and Evaporator<br />
Heater operation.<br />
Check for dirt in the Panel. Check<br />
Door Gasket sealing integrity.<br />
X<br />
X<br />
X<br />
X<br />
SEMI-<br />
ANNUALLY<br />
**Leak check the Chiller. X<br />
**Sample Compressor Oil, check for<br />
Acid, and replace if necessary.<br />
**Disconnect Power Source and<br />
Lock Out. Check tightness of<br />
Power Wiring connections.<br />
Check Glycol concentration on Low<br />
Temp. or other applications where<br />
freezing may be a problem.<br />
MAINTENANCE REQUIREMENTS FOR<br />
<strong>YVAA</strong> CHILLERS<br />
X<br />
X<br />
X<br />
X<br />
ANNUALLY EVERY 5<br />
YEARS<br />
VSD Glycol Change. X<br />
X<br />
X<br />
X<br />
FORM 201.28-NM1.1<br />
ISSUE DATE: 8/29/2012<br />
EVERY *<br />
HOURS<br />
* Reserved for customer use for any special site requirements.<br />
** This procedure must be performed at the specific time by an industry certified technician who has been<br />
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<br />
the equipment owner should proof of adequate maintenance be required at a later date for warranty purposes.<br />
JOHNSON CONTROLS