Installation - Lennox EL296DFE Series Manual

II-PLACEMENT AND INSTALLATION
All pipe, fittings, primer and solvent cement must conform
with American National Standard Institute and the Ameri-
can Society for Testing and Materials (ANSI/ASTM) stan-
dards. 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, strati-
fication, or separation that cannot be removed by stirring.
Refer to the table 14 below for approved piping and fitting
materials.
TABLE 14
PIPING AND FITTINGS SPECIFICATIONS
Schedule 40 PVC (Pipe)
Schedule 40 PVC (Cellular Core 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 Cellular Core DWV
(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
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 ce-
ment 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
D1785
cooler weather. Metal or plastic strapping may be used for
F891
vent pipe hangers. Uniformly apply a liberal coat of PVC
D2466
primer for PVC or use a clean dry cloth for ABS to clean
inside socket surface of fitting and male end of pipe to
F441
depth of fitting socket.
F438
Canadian Applications Only - Pipe, fittings, primer and
D2241
solvent cement used to vent (exhaust) this appliance must
F442
be certified to ULC S636 and supplied by a single manu-
facturer as part of an approved vent (exhaust) system. In
F628
addition, the first three feet of vent pipe from the furnace
flue collar must be accessible for inspection.
D1527
D2468
Venting Options
The EL296DFE is shipped with vent exhaust / air intake
D2661
connection at the top cap. See FIGURE 17. Using parts
provided, the furnace may be field modified to have these
D2665
connections on the right side of the furnace cabinet. See
FIGURE 19 and follow the steps below. For left side vent-
ASTM
SPECIFICATION
ing order kit 87W73.
F656
D2564
F493
D2235
D2564, D2235,
F493
D3188
MARKING
ULCS636
Page 22
IMPORTANT
1 - Remove inner blower door.
2 - Loosen hose clamps which attach rubber fittings to
the white PVC pipes inside the vestibule area. See
FIGURE 17.
3 - Loosen the clamp which secures the pipes at the
blower deck. See figure 17.
4 - Remove white PVC pipes, slide up and out thru the
top cap.
5 - Remove the black plastic fitting in top cap which
previously aligned the PVC pipes.
6 - Remove the remaining parts of the pipe clamp at
the blower deck.
7 - Remove the sheet metal patch plate on the side
of the cabinet which covers the openings for side
venting option. Save screws for reuse.
8 - Re-use the patch plate to cover the hole in the top
cap. See FIGURE 18. Remove the 2 screws which
secure the top cap to the furnace on the right side
and re-install securing the right edge of the patch
plate and the right side of the top cap to the furnace.
Use 2 self-drilling sheet metal screws (provided) to
finish securing the left edge of the patch plate on
the left side.