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Pipe & Fittings Specifications
All pipe, fittings, primer and solvent cement must conform
with American National Standard Institute and the American
Society for Testing and Materials (ANSI/ASTM) standards.
The solvent shall be free flowing and contain no lumps,
undissolved particles or any foreign matter that adversely
affects the joint strength or chemical resistance of the
cement. The cement shall show no gelation, stratification,
or separation that cannot be removed by stirring. Refer to
Table 4 below for approved piping and fitting materials.
Solvent cements for plastic pipe are flammable liquids
and should be kept away from all sources of ignition.
Do not use excessive amounts of solvent cement when
making joints. Good ventilation should be maintained to
reduce fire hazard and to minimize breathing of solvent
vapors. Avoid contact of cement with skin and eyes.
Outdoor Exhaust
Vent Pipe
Capacity
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
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 and 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 the 45,000 and 70,000 furnaces. When using 1-1/2 in. piping, the pipe must be transitioned to 2 in. pipe when used with the
Concentric Kit.
507735-03
CAUTION
Standard
Outdoor Exhaust
Accelerator
Accelerator
(Dia. x Length)
(Dia. x Length)
1-1/2" x 12"
2" x 12"
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
Table 5. Outdoor Termination Kits Usage
The exhaust and intake connections are made of PVC.
Use PVC primer and solvent cement when using PVC
vent pipe. When using ABS vent pipe, use transitional
solvent cement to make connections to the PVC fitting
in the unit.
Use PVC primer and solvent cement or ABS solvent
cement meeting ASTM specifications; refer to Table 4.
As an alternate, use all purpose cement, to bond ABS,
PVC, or CPVC pipe when using fittings and pipe made of
the same materials. Use transition solvent cement when
bonding ABS to either PVC or CPVC.
Low temperature solvent cement is recommended during
cooler weather. Metal or plastic strapping may be used as
vent pipe hangers. 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.
1-1/2"
Flush-Mount
Concentric
Kit
71M80
51W11**
†44W92††
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
Issue 1933
IMPORTANT
Concentric
2"
Concentric
Kit
Kit
69M29
or
or
†44W92††
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
3"
Concentric
Kit
60L46
or
44W93†
YES
YES
YES
YES
YES
YES
Page 13 of 53
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