6
Heatilator • CNXT Series • 4000-011 Rev N • 11/05
In addition to these framing dimensions, also reference the
following sections:
• Clearances and Mantel Projections (Sections 3.C. and 3.D.)
• Vent Clearances and Framing (Section 6)
Rear vent
One 45° elbow
Horiz Term
Rear Vent
Two 90° elbows
Horiz Term
Rear Vent
One 90° elbow
Vert Term
Top Vent
One 90° elbow
Horiz Term
No elbows
Horiz Term
A
A
A
G
A
A
C
D
B
B
F
1 in. (25 mm) min.
pipe to combustibles
I
E
1/2 in. (13 mm) min.
appliance to
combustibles
E
I
1 in. (25 mm) min.
pipe to
combustibles
F
1/2 in. (13 mm) min.
appliance to
combustibles
Alcove
Installation
C
H
Drywall
A
Note:
• Illustrations refl ect typical installations and are FOR
DESIGN PURPOSES ONLY.
• Illustrations/diagrams are not drawn to scale.
• Actual installation may vary due to individual design
preference.
Fire Risk
Provide adequate clearance:
• Around air openings.
• For
service
access.
Locate appliance away from traffi c areas.
WARNING
A. Select Appliance Location
When selecting a location for your appliance it is important to
consider the required clearances to walls (See Figure 3.1).
N o t e :
For ac tual applianc e dimensions refer to
Section 16.
Figure 3.1
Appliance Locations
3
3
Framing and Clearances
Model #
A
B
C
D
E
F
G
H
I
CNXT70I Series
in.
42
50-5/8
23-1/2
71-5/8
50-5/8
52-5/8
43
48
59-3/4
mm
1067
1286
597
1819
1286
1337
1092
1220
1518
CNXT90I Series
in.
48
55-1/4
23-1/2
78-1/4
55-1/4
55-1/4
49
48
59-3/4
mm
1219
1403
597
1988
1403
1403
1245
1220
1518