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Nomenclature
The nomenclature breaks down and explains what the letters and numbers mean in the model number.
Serial Number
The rst two characters of the serial number identify the month and year of manufacture. The letter
designating the year repeats every 12 years.
Example: LA123456S = June, 2013
A – JAN
D – FEB
F – MAR
G – APR
H – MAY
L – JUN
M – JUL
R – AUG
S – SEP
T – OCT
V – NOV
Z – DEC
2024 – Z
2023 – V
2022 – T
2021 – S
2020 – R
2019 – M
2018 – L
2017 – H
2016 – G
2015 – F
2014 – D
2013 – A
Model Number
A Z 4 5 E 0 9 D A B W 5
Zoneline
Package Terminal
Chassis
Chassis Series
45: Deluxe Electric Heat
Electronic Control
65: Deluxe Heat Pump
Electronic Control
Unit Type
E: Cooling with Electric
Resistance Heat
H: Heat Pump with Electric
Resistance Heat
Universal Power Connection
A: These models use power cord
kits; heater size determined by a
power cord kit.
B: These models use power cord
kits; heater size determined by a
power cord kit and have MUAM
(Make Up Air Module)
Special Features:
B: Base Unit
C: Corrosion Treated
D: Internal Condensate
Removal (ICR) System
(Heat Pump Only)
P: Heat Pipe, Dry 25
M: Make Up Air Module
Engineering Revision
Compressor Type
M: MB
W: Rechi
Voltage/Frequency
D: 230/208 Volt 60 Hz Single Phase
E: 265 Volt 60 Hz Single Phase
Nominal Cooling Capacity
07: 7,000 BTU/hr.
09: 9,000 BTU/hr.
12: 12,000 BTU/hr.
15: 15,000 BTU/hr.
Mini Manual Location
(Bottom of Pan)
Model Serial Location
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