Specifications – Kees IFG (INDIRECT FIRED GAS) MAKE-UP AIR UNITS - Duct Furnace Installation & Maintenance Manual User Manual
Page 4
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Figure 1 - Standard Natural Vented Outdoor Duct Furnace
Chart 1 - Dimensional/Data
Figure 2 - Standard Power Vented Outdoor Duct Furnace
CAPACITY
US
CANADA
GAS INLET
(CA)
A
B
C
D
D
*F
K
NAT
LP
10
32-7/8
15-9/16
12
11
20-11/16
19-3/8
30-3/16
1/2
1/2
(835)
(395)
(305)
(279)
(525)
(492)
(767)
15
32-7/8
18-5/16
21-1/2
16
25-3/16
23-1/2
30-3/16
1/2
1/2
(835)
(465)
(546)
(406)
(640)
(597)
(767)
20
43-7/8
23-13/16
23-1/2
16
25-3/16
26-1/4
41-3/16
1/2
1/2
(1114)
(605)
(597)
(406)
(640)
(667)
(1046)
25
43-7/8
29-5/16
23-1/2
16
25-3/16
34-1/2
41-3/16
3/4
1/2 OR 3/4
(1114)
(745)
(597)
(406)
(640)
(876)
(1046)
30
54-7/8
34-13/16
26
17-1/2
26-11/16
37-1/4
52-3/16
3/4
1/2 OR 3/4
(1394)
(884)
(660)
(445)
(678)
(946)
(1326)
35
54-7/8
40-5/16
26
17-1/2
26-11/16
45-1/2
52-3/16
3/4
1/2 OR 3/4
(1394)
(1024)
(660)
(445)
(678)
(1156)
(1326)
40
60-3/8
45-13/16
26
17-1/2
26-11/16
51
57-11/16
3/4
1/2 OR 3/4
(1534)
(1164)
(660)
(445)
(678)
(1295)
(1465)
NOTE:
DIMENSIONS ARE IN INCHES, DIMENSIONS IN PARENTHESIS ARE IN MILLIMETERS.
* “F” DIMENSION IS THE RECOMMENDED CLEARANCE TO SERVICE THE BURNER DRAWER(S).
REFER TO FIGURE 6 FOR ADDITIONAL CLEARANCE REQUIREMENTS.
SPECIFICATIONS
DFR3538A
TFR3779A
4" (102)
1" (25)
Typ.
5-1/16"
(129)
Electrical
Connections
5/8" (16) Typ.
Anchor Hole
Location
Vent Cap
Is Shipped
In Separate
Carton
A
C (Typ.)
10-1/8"
(257)
B
Opening Typ.
13/16" (21) Typ.
Anchor Hole
Location
Gas
Connection
8-3/4"
(222)
*
F
26"
(660)
31-1/4"
(794)
CL
D
39"
(991)
19"
(483)
Opening
K
1-1/8" (29)
Typ. Duct
Flange
DFR3541A
TFR3779 A
4" (102)
1" (25)
Typ.
5-1/16"
(129)
Electrical
Connections
5/8" (16) Typ.
Anchor Hole
Location
A
10-1/8"
(257)
B
Opening Typ.
13/16" (21) Typ.
Anchor Hole
Location
Gas
Connection
8-3/4"
(222)
*
F
26"
(660)
31-1/4"
(794)
CL
39"
(991)
19"
(483)
Opening
K
1-1/8" (29)
Typ. Duct
Flange
Flue
Product
Outlet
Combustion
Air Inlet