Lennox Allied Air Enterprise A97DSMV Installation Instructions Manual page 10

Warm air gas furnace downflow air discharge direct vent
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Piping and Fittings Specifications
Schedule 40 PVC (Pipe)
Schedule 40 PVC (Fittings)
Schedule 40 CPVC (Pipe)
Schedule 40 CPVC (Fittings)
SDR-21 PVC or SDR-26 PVC (Pipe)
SDR-21 CPVC or SDR-26 CPVC (Pipe)
Schedule 40 ABS (Pipe)
Schedule 40 ABS (Fittings)
ABS-DWV (Drain Waste & Vent)
(Pipe & Fittings)
PVC-DWV (Drain Waste & Vent)
Pipe & Fittings)
Primer & Solvent Cement
PVC & CPVC Primer
PVC Solvent Cement
CPVC Solvent Cement
ABS Solvent Cement
PVC/CPVC/ABS All Purpose Cement For
Fittings & Pipe of the same material
ABS to PVC or CPVC Transition Solvent
Cement
Canada Pipe & Fitting & Solvent
Cement
PVC & CPVC Pipe and Fittings
PVC & CPVC Solvent Cement
ABS to PVC or CPVC Transition Cement
Polypropylene Venting System
PolyPro® by Duravent
InnoFlue® by Centrotherm
ECCO Polypropylene Vent
Page 10 of 73
D1785
D2466
F441
F438
D2241
F442
D1527
D2468
D2661
D2665
ASTM
Specification
F656
D2564
F493
D2235
D2564, D2235,
F493
D3138
Marking
ULCS636
ULC-S636
ULC-S636
ULC-S636
TM
Table 4.
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.
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 fittings
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. Metal
or plastic strapping may be used for vent pipe hangers.
Uniformly apply a liberal coat of PVC primer for PVC.
Canadian Applications Only – Pipe, fittings, primer and
solvent cement used to vent (exhaust) this appliance
must be certified to ULCS636 and supplied by a single
manufacturer as part of an approved vent (exhaust)
system. In addition, the first three feet of vent pipe from the
furnace flue collar must be accessible for inspection.
Table 5 lists the available exhaust termination kits.
Issue 2241
CAUTION
IMPORTANT
507029-05

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