Specifications

Catalog WSC/WDC-4 63
Chiller Identification
To provide a wide range of components to match job requirements of capacity, efficiency and
competitive initial cost, McQuay WSC and WDC centrifugal chillers are selected by computer
and identified by their components.
The variations of compressor, impeller, gear ratio, evaporator and condenser tube surface and
configuration provide over 1,000,000 combinations of standard components within the range of 80
to 2,500 tons. It is impractical to catalog all of these combinations. Therefore, computer selection
for specific application conditions is required. The complete unit model code is then established
as follows:
Figure 22, Chiller Identification
MODEL CODE EXAMPLE:
W S C - 063M - AQ - 18S / E2012- E - 2 * A / C1812- B L Y Y - 2 * A Y Y Y R / 134B
Packaged Water Cooled
Centrifugal Chiller
S = Single Compressor
D = Dual Compressor
Hermetic Compressor Model
Compressor/Impeller Code
Gear Ratio
Motor/Voltage Code
Evaporator Shell Description
[Diameter (in.), Length (ft.)]
Tube Count Code
Tube Type Code
Number of Passes (1, 2, 3)
Water Inlet Location (R = Right Inlet; L = Left Inlet)
Connection Type
Condenser Shell Description [Diameter (in.), Length (ft.)]
Tube Count Code
Type Type Code
Tube Count Code (Heat Recovery Condenser)
Tube Type Code (Heat Recovery Conderser)
Number of Passes (1, 2, 3)
Water Inlet Location (R = Right Inlet; L = Left Inlet)
Connection Type
Number of Passes (Heat Recovery Condenser)
Water Inlet Location (Heat Recovery Condenser)
Connection Type (Heat Recovery Condenser)
Motor Manufacturer
Refrigeration Type (134 = HFC-134a)
COMPRESSOREVAPORATOR
CONDENSER
R