64 Product Manual PM WSC/WDC
1.6 WARRANTY
The refrigeration equipment manufacturer’s warranty shall be for a period of (one) -- Or -- (two) --Or--
(five) years from date of equipment start up or 18 months from shipment whichever occurs first. The
warranty shall include parts and labor costs for the repair or replacement of defects in material or
workmanship.
1.7 MAINTENANCE
Chiller maintenance shall be the responsibility of the owner with the following exceptions:
A. The manufacturer shall provide the first year scheduled oil and filter change if required.
B. The manufacturer shall provide first year purge unit maintenance if required.
PART 2 — PRODUCTS
2.1 ACCEPTABLE MANUFACTURERS
A. McQuay International
B. (Approved Equal)
2.2 UNIT DESCRIPTION
Provide and install as shown on the plans a factory assembled, factory charged, and factory run-tested
water-cooled packaged chiller. Each unit shall be complete with a single-stage hermetic centrifugal
compressor with lubrication and control system, factory mounted starter, evaporator, condenser,
refrigerant control device and any other components necessary for a complete and operable chiller
package.
2.3 DESIGN REQUIREMENTS
A. General: Provide a complete water-cooled hermetic centrifugal compressor water-chilling
package as specified herein. Machine shall be provided according to referenced standards
Section 1.2. In general, unit shall consist of a compressor, condenser, evaporator, lubrication
system, starter and control system.
Note: Chillers shall be charged with a refrigerant such as HCFC-134a, not subject to the
Montreal Protocol and the U. S. Clean Air Act.
B. Performance: Refer to schedule on the drawings. The chiller shall be capable of stable
operation to ten percent of full load with standard ARI entering condensing water relief
without the use of hot gas bypass.
C. Acoustics: Sound pressure levels for the complete unit shall not exceed the following
specified levels. Provide the necessary acoustic treatment to chiller as required. Sound data
shall be measured according to ARI Standard 575-87. Data shall be in dB. Data shall be the
highest levels recorded at all load points. Test shall be in accordance with ARI Standard 575.
Octave Band
63 125 250 500 1000 2000 4000 8000 dba
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