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Vent Pipe Dia.
(in.)
1-1/2
1
2
045
2-1/2
3
1-1/2
1
2
070
2-1/2
3
2
090
2-1/2
3
2
110
2-1/2
3
NOTE - Standard Terminations do not include any vent pipe or elbows external to the structure. Any vent pipe or elbows external to the structure must be included in total
vent length calculations. See vent length tables.* Kits must be properly installed according to kit instructions.
1Requires field-provided outdoor 1-1/2" exhaust accelerator.
2Concentric kits 71M80 and 44W92 include 1-1/2" outdoor accelerator, when used with 045 and 070 input models. When using 1-1/2 in. piping, the pipe must transition to
2in. pipe when used with the concentrci kit.
3 Flush mount kit 51W11 includes 1-1/2 in. outdoor exhaust accelerator, required when used with 045, 070 and 090 input models. When using 1-1/2 in. piping, the pipe
must transition to 2in. pipe when used with the flush mount kit.
4 Termination kits 44W92 and 44W93 approved for use in Canadian installations to meet CSAB149.
5 See table 10 for vent accelerator requirements
6 2inch to 1-1/2 inch reducer required. must be fied required.
Joint Cementing Procedure
All cementing of joints should be done according to the
specifications outlined in ASTM D 2855.
DANGER OF EXPLOSION!
Fumes from PVC glue may ignite during system check.
Allow fumes to dissipate for at least 5 minutes before
placing unit into operation.
Standard
Flush Mount Kit
51W11 (US) 51W12
(CA)
YES
3
YES
3
YES
3
YES
3
3YES
3YES
YES
3
YES
3
YES
3
YES
3
YES
3
YES
YES
YES
Table 8. Outdoor Termination Kits
DANGER
1-1/2 inch
Field
Fabricated
71M80 (US)
44W92 (CA)
4
YES
YES
5
2
YES
YES
5
2
YES
YES
5
2
YES
YES
5
2
YES
YES
5
2
YES
YES
5
2
YES
YES
5
2
YES
YES
5
2
YES
5
YES
5
YES
5
N/A
YES
5
YES
5
YES
5
1.
Measure and cut vent pipe to desired length.
2.
Debur and chamfer end of pipe, removing any ridges
or rough edges. If end is not chamfered, edge of pipe
may remove cement from fitting socket and result in a
leaking joint.
NOTE: Check the inside of vent pipe thoroughly for
any obstruction that may alter furnace operation.
3.
Clean and dry surfaces to be joined.
4.
Test fit joint and mark depth of fitting on outside of pipe.
5.
Uniformly apply a liberal coat of PVC primer for PVC
or use a clean dry cloth for ABS to clean inside socket
surface of fitting and male end of pipe to depth of fitting
socket.
NOTE: Time is critical at this stage. Do not allow
primer to dry before applying cement.
Page 22
Concentric
2 inch
3 inch
69M29 (US)
60L46 (US)
44W92 (CA)
444W93 (CA)
4
4
N/A
N/A
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
31-5000728 Rev. 0
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