Model Nomenclature - American Standard 50A65-475 Manual

Model Nomenclature

Furnace Configuration
U = Upflow/Horizontal
D = Downflow/Horizontal
Type
D = Induced Draft – 80% AFUE
E = 78%/80% AFUE
X = Direct Vent Condensing
Y = Direct Vent Condensing Variable Speed Blower
Heating Input MBTUH
Example: 040 = 40,000 MBTUH
Major Design Change
C = Single Stage
R = Two Stage
Power Supply and Fuel
115 Volt
Natural Gas
Airflow Capacity for Cooling
18 = 1 1/2 Tons
24 = 2 Tons
30 = 2 1/2 Tons
36 = 3 Tons
Example: 24 MBTUH = 2 Tons
V3 = 2 1/2 – 3 1/2 Tons, Variable Speed Motor
V4 = 3 – 4 Tons, Variable Speed Motor
V5 = 3 – 5 Tons, Variable Speed Motor
Minor Design Change
H = Horizontal (Upflow/Horizontal Models Only)
V = Variable Speed Vent Motor
J = SiNi on 80% Furnaces Only
Product Service Change
Part I.D.
42 = 3 1/2 Tons
48 = 4 Tons
60 = 5 Tons
400 CFM per Ton
2 Tons x 400 CFM/Ton = 800 CFM
U C 0 4 0 C 9 2 4 A
3
1
First letter may be A or T