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VENT
Unit
PIPE DIA.
(in.)
1-1/2
1
2
070
2-1/2
3
2
090
2-1/2
3
2
110
2-1/2
3
2 inch to 1-1/2 inch reducer required, must be field provided.
1
* Requires field-provided and installed 1-1/2" exhaust accelerator.
** Kit 51W11 is provided with a 1-1/2" accelerator, which must be used for all 45,000 and 70,000 furnace installations. When using
1-/2 in. piping, the pipe must be transitioned to 2 in. pipe when used with the Flush Mount Kit.
+ Termination kits 44W92, 44W93, 30G28 & 81J20 approved for use in Canadian installations to meet CSAB149.
++ The 44W92 concentric kit is provided with a 1-1/2" accelerator, which must be installed on the exhaust outlet when this kit is used
with this furnace. When using 1-1/2 in. piping, the pipe must be transitioned to 2 in. pipe when used with the Concentric Kit.
Venting Options
This unit is shipped with vent exhaust / air intake connection
at the top cap. See Figure 13.
Figure 13. Top Vent Configuration
507029-05
STANDARD
Outdoor
Outdoor Exhaust
Exhaust
Accelerator
Accelerator
(Dia. X Length)
(Dia. X Length)
1-1/2" X 12"
2" X 12"
YES
YES
YES
YES
Table 5. Outdoor Termination Kits Usage
Exhaust/Air
Intake Connections
Pipe Clamp
Hose Clamp
Flush
Mount Kit
51W11 **
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
Using parts provided, the furnace may be field modified
to have these connections on the right side of the furnace
cabinet. See Figure 14 and follow the steps below. For left
side venting, order kit 87W73.
Figure 14. Right-Side Vent Configuration
Issue 2241
CONCENTRIC
1-1/2"
2"
Concentric
Concentric
Kit
Kit
71M80
69M29
or
or
+44W92++
+44W92++
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
Sealing Plate
Side Vent
Sealing Gaskets
Exhaust
Intake
Street Elbows (2)
3"
Concentric
Kit
60L46
or 44W93+
YES
YES
YES
YES
YES
YES
Side Vent
Page 11 of 73
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