WaterFurnace CLW Chiller - Manual (Page 25)

25
CLW QUAD SERIES CHILLER INSTALLATION MANUAL
Unit Heat Exchanger Maintenance
1. Keep all air out of the water or antifreeze solution.
2. Keep the system under pressure at all times. Closed
loop systems must have positive static pressure or air
vents may draw air into the system.
NOTES: If the installation is in an area with a known high
mineral content in the water, it is best to establish with
the owner a periodic maintenance schedule for checking
the water-to-refrigerant heat exchanger on a regular
basis. Should periodic cleaning be necessary, use standard
cleaning procedures. Generally, the more water flowing
through the unit, the less chance there is for scaling. Low
GPM flow rates produce higher temperatures through the
heat exchanger. To avoid excessive pressure drop and the
possibility of metal erosion, do not exceed GPM flow rate as
shown on the specification sheets for each unit.
Quarterly Checks
• Compressor oil levels
• Test and check all manual safeties
• Check strainers for debris
• Check water flow rates and pressure drops across
evaporators and condensers
• Verify graphical data and trending
• Properly document all data
Annual Checks
• Remove and clean all waterside strainers
• Back washing of heat exchangers
• Perform leak tests on all refrigerant circuits
• Check all water flanged connections for wear or leaks
• Implement oil analysis if deemed necessary
• Verify all electrical connections
• Check and update all graphical interface items along
with main controller
• Check and test all safeties both mechanical and
software
• Verify sensor accuracy
• Do a system check to get overall overview
• Properly document all data
Preventive Maintenance
Replacement Procedures
When contacting the company for service or replacement
parts, refer to the model number and serial number of the
unit as stamped on the serial plate attached to the unit.
If replacement parts are required, mention the date of
installation of the unit and the date of failure, along with an
explanation of the malfunctions and a description of the
replacement parts required.
In-Warranty Material Return
Material may not be returned except by permission
of authorized warranty personnel. Contact your local
distributor for warranty return authorization and assistance.