All installations and services must be performed by qualified service personnel.
7
3.
The furnace remain running at conditions 1&2 for 30 minutes or until odor has dissipated
: These furnace models are a sealed combustion design, which does not require an air
shutter adjustment (air shutters are not used) for proper flame characteristics. Burner door must
always be closed before operating furnace.
: Personal injury or property damage could result from repair or service of this furnace by anyone other
than a qualified heating contractor. Only the homeowner/user routine maintenance described in the Users Information
Manual may be performed by the user.
FURNACE MODEL NO. NOMENCLATURE
Model Number Digit
1
2
3
4
5
6
7
8
9 10 11 12 13
C
at
e
gor
y
P
r
of
il
e
C
on
fi
gu
r
at
ion
S
tagi
n
g
V
e
r
si
on
In
p
u
t
In
p
u
t
In
p
u
t
M
ot
or
T
yp
e
C
lg
A
ir
fl
ow
C
ap
C
lg
A
ir
fl
ow
C
ap
G
as
T
yp
e
Gas Furnace Model Nomenclature Example Model Numbers
C L Q S
1
-
0
5
0
T
3
6
N
C = Condensing
C
L = Low-profile
L
Q = Quadpoise
Q
Stage: S = Single, X = 2-Stage
S
Version (Rev)
1
Input Capacity in MBTUH (1000)
-
0
5
0
Motor Type: T = CTM, E = ECM
T
Cooling Airflow Capacity in MBTUH (1000)
3
6
Gas Type: N = Natural, P = Liquid Propane
N
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