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Serial Number
Decade Manufactured
L=0 C=3 F=6 J=9
A=1 D=4 G=7
B=2 E=5 H=8
L H G R 00001
Production Run Number
Year Manufactured
A=1 D=4 G=7 K=0
B=2 E=5 H=8
C=3 F=6 J=9
Product Line
R = RAC
Month Manufactured
A=Jan D=Apr G=Jul K=Oct
B=Feb E=May H=Aug L=Nov
C=Mar F=Jun J=Sept M=Dec
1st Digit – Function
S = Straight Cool, Value Series
Y = Heat Pump
E = Electric Heat
K = Straight Cool
R = Straight Cool
X = Straight Cool
2nd Digit
Q = Q-Star
S = Small Chassis
M = Medium Chassis
L = Large Chassis
H = HazardGard
3rd and 4th Digit - Approximate
BTU/HR in 1000s (Cooling)
Heating BTU/Hr capacity listed in the
Specication/Performance Data Section
8th Digit – Engineering
Major change
7th Digit – Options
0 = Straight Cool &
Heat Pump Models
1 = 1 KW Heat Strip, Nominal
3 = 3 KW Heat Strip, Nominal
4 = 4 KW Heat Strip, Nominal
5 = 5 KW Heat Strip, Nominal
6th Digit – Voltage
1 = 115 Volts
3 = 230-208 Volts
5th Digit
Alphabetical Modier
Model Number Code
S S 08 L 1 0 E
RAC Serial Number Identication Guide
UNIT IDENTIFICATION