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SS-PRC005-EN8
Model
Number
Description
Definition of Abbreviations Used in This Catalog
AL — Aluminum
ASTM — American Society of Testing and Materials
CFM — Cubic Feet Per Minute
Conn. — Connection
CSA — Canadian Standards Association
CU — Copper
DIA. — Diameter
dt — Temperature Difference
EER — Energy Efficiency Ratio (Btu/Watt-Hour)
DIGIT 1,2,3 — UNIT TYPE
EVP = Evaporative Liquid Chiller
DIGIT 4 — DEVELOPMENT SEQUENCE
(Factory Assigned)
A = First
B = Second
Etc.
EVP B C20 A 1 *
1,2,3 4 5,6,7 8 9 10
DIGITS 5,6,7 — NOMINAL CAPACITY
C20 = 20 Tons
C25 = 25 Tons
C30 = 30 Tons
C40 = 40 Tons
C50 = 50 Tons
C60 = 60 Tons
DIGIT 8 — NUMBER OF CIRCUITS
A = Single (20-30 Ton Units)
D = Dual (40-60 Ton Units)
DIGIT 9 — TUBE MATERIAL
1 = Copper
DIGIT 10 — DESIGN SEQUENCE
(Factory Assigned)
A = First
B = Second
Etc.
Remote Chillers
20 TO 60-TON REMOTE CHILLERS
DIGIT 8 — VOLTAGE AND START
CHARACTERISTICS
E = 200/60/3 XL
D = 415/50/3 XL
F = 230/60/3 XL
4 = 460/60/3 XL
5 = 575/60/3 XL
9 = 380/50/3 XL
DIGIT 9 — SYSTEM CONTROL
B = No System Control
C = Constant Volume Control
E = Supply Air VAV Control
P = EVP Control
DIGIT 10 — DESIGN SEQUENCE
(Factory Assigned)
A = First
B = Second
Etc.
DIGIT 1 — UNIT TYPE
R = Condensing Unit
DIGIT 2 — CONDENSER
A = Air Cooled
DIGIT 3 — AIRFLOW
U = Upflow
DIGIT 4 — DEVELOPMENT SEQUENCE
C = Third
DIGITS 5,6,7 — NOMINAL CAPACITY
C20 = 20 Tons
C25 = 25 Tons
C30 = 30 Tons
C40 = 40 Tons
C50 = 50 Tons
C60 = 60 Tons
R A U C C20 E B A 1 0 A 0 0 0 0 0 0 0 0
1 2 3 4 5,6,7 8 9 10 11 12 13 14 15 16 17 18 19 20 21
DIGIT 11 — AMBIENT CONTROL
0 = Standard
1 = 0°F (Low Ambient Dampers)
DIGIT 12 — AGENCY APPROVAL
0 = None
3 = UL/CSA (not available for 50 Hz)
DIGIT 13-21 — MISCELLANEOUS
A = Unit Disconnect Switch
B = Hot Gas Bypass
D = Suction Service Valve
F = Pressure Gauges
G = Return Air Sensor
H = Copper Fins
T = Flow Switch (EVP Control Option
Only)
1 = Spring Isolators
2 = Rubber Isolators
4 = 5-Year Compressor Warranty
9 = Packed Stock Designator
Air-Cooled Condensing Units
20 TO 60-TON AIR-COOLED CONDENSING UNITS
1
1. The service digit for each model number contains 21 digits; all 21 digits must be referenced.
EWT — Entering Water (Solution) Temperature
(F) — Units of Temperature in Degrees Fahrenheit
GPM — Gallons Per Minute
ID — Inside Diameter
(INT) — Internal
IPLV — Integrated Part Load Value
ITD — Initial Temperature Difference
k — Thermal Conductivity
KO — Knock Out
20 - 60 To n