Payne B Series Installation, Start-Up, Operating And Service And Maintenance Instructions Download

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2-Pipe and 1-Pipe Vent Termination

NOTE

: Follow the instructions of the vent terminal manufacturer.

These instructions are provided as a reference, only.

RECOMMENDED SUPPORT FOR VENT

TERMINATIONS

It is recommended that sidewall vent terminations in excess of

24 inches (0.6 M) in vertical length be supported by

EITHER

the Direct Vent Termination Kit shown in Table 13 or by

field

−

supplied brackets or supports fastened to the structure.

NOTICE

Determine an appropriate location for termination kit using the
guidelines provided in section “Locating The Vent Termination” in
this instruction.

1. Cut two holes, one for each pipe, of appropriate size for

pipe size being used.

2. Loosely install elbow in bracket (if used) and place assem-

bly on combustion

−

air pipe.

3. Install bracket as shown in Fig. 54 and 56.

NOTE

: For applications using vent pipe option indicated by

dashed lines in Fig. 54 and 55, rotate vent elbow 90

from

position.

4. Disassemble loose pipe fittings. Clean and cement using

same procedures as used for system piping.

DO NOT CE-

MENT POLYPROPYLENE FITTINGS.

(Direct Vent / 2-Pipe System ONLY)

When two or more furnaces are vented near each other, two vent

terminations may be installed as shown in Fig. 54, but next vent

termination, or pair of vent terminations, must be at least 36 in.

(914 mm) away from the first two terminations. It is important that

vent terminations be made as shown in Fig. 54 to avoid

recirculation of vent gases.

Inducer Outlet Restrictor

To improve efficiency and operation of 40K, 60K, 100K or 120K

BTUH input models on very short vent systems, an inducer outlet

restrictor is required to be installed on the outlet of the inducer

assembly. The outlet restrictor is shown in the footnote of Table 17

−

Maximum Equivalent Vent Length. The outlet restrictor for the

40K models is shipped in the loose parts bag. See Table 17 for

usage, part numbers and sourcing of 60K, 100K and 120K inducer

outlet restrictors.
To determine if the outlet restrictor is required, see Table 17.

Failure to use an outlet restrictor on the 40K input model when

required may result in flame disturbance or flame sense

lockout.

Table 15 – Approved Combustion-Air and Vent Pipe, Fitting and Cement Materials (U.S.A. Installations)

MATERIALS

USA

All pipe, fittings, primers*, and solvents* must conform to American National Standards Institute (ANSI) stan
dards and American Society for Testing and Materials (ASTM) standards or ULC S636 where required by
code.

See Table below for approved materials for use in the U.S.A.

ULC S636 vent systems must be composed of pipe, fittings, cements, and primers from the same supplier.

Factory accessory concentric vent kits are ULC S636 listed.

CANADA

Installation in Canada must conform to the requirements of CAN/CSA B149 code.

Vent systems must be composed of pipe, fittings, cements, and primers from the same supplier and listed to
ULC S636.

Not all materials below may be approved or listed to ULC S636.

Royal Pipe and IPEX are approved suppliers of ULC S636 pipe, fittings, cements and primers*.

Factory accessory concentric vent kits are ULC S636 listed for use with Royal Pipe and IPEX venting sys
tems.

Material

Description

Type

ASTM or ULC Specification

Pipe

Fittings

Solvents

Primers*

Cements

PVC

Pressure Pipe

Schedule 40

D1785

D2665

F656

D2564

DWV

Schedule 40

D1785

D2665

Cellular Core

Schedule 40

F891

D2466

SDR 26

N/A

D2241

N/A

SDR21

N/A

D2241

N/A

IPEX

Schedule 40

ULC S636

Royal Pipe

Schedule 40

ULC S636

ABS

Schedule 40

D1527

D2468

Clear Cleaner

For ABS†

D2235

Cellular Core DWV

Schedule 40

F628

D2661

CPVC

Pressure Pipe

Schedule 40

F441

F438

F656

F493

SDR

N/A

F442

N/A

IPEX

Schedule 40

ULC S636

Royal Pipe

Schedule 40

ULC S636

*Colored or tinted solvents or primers must be used where required by code in the USA
†ABS plastic does not require a primer before solvent cementing. A cleaner for ABS is recommended to remove any surface residue. ABS
cleaners are not subject to ASTM standards.

Polypropylene

Approved Manufacturer

Solvents

Primers

Cements

Poly Pro®

M & G Dura Vent

Not Permitted

NOTE: Polypropylene vent systems are UL-1738 and ULC S636 listed and assembled using mechanical fastening systems supplied by the
vent manufacturer.

PG92S*S