Noritz America PVC-2CT, PVC-3CT Installation Manual

Parts

Shape

Quantity

PVC Concentric

Termination

1

Bird Screen

1

Installation Manual

1

Installation Guide

2” & 3” PVC Concentric Termination

Model: PVC-2CT & PVC-3CT

WARNING: If the Information in this manual is not followed exactly, a fire,

explosion or carbon monoxide poisoning may result causing property damage,
personal injury or death.

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Rev. 04/17

Item

Pipe & Fitting Material

United States

Canada

Exhaust

Vent/Air

Intake

Schedule 40 PVC

ANSI/ASTM D1785

CSA B137.3

PVC‐DWV

ANSI/ASTM D2665

CSA B181.2

Schedule 40 CPVC

ANSI/ASTM F441

CSA B137.3

Pipe

Cement/

Primer

PVC

ANSI/ASTM D2564

ULC S636 Certified

Materials Only

CPVC

ANSI/ASTM F493

Note: 1. Use of cellular core PVC (ASTM F891), cellular core CPVC, or
Radel® (polyphenylsulfone) in non-metallic venting system is prohibited.

2. Canada exhaust vent with exception of fresh air intake must be

certified ULC S636 materials only.

This manual covers the installation of the Noritz 2” & 3” PVC Concentric Vent Termination Model name
PVC-2CT & PVC-3CT for all Noritz condensing tankless water heaters that utilities schedule 40 PVC for
venting. Read these instructions completely before attempting installation.

Parts/Tools Required:

2” or 3” PVC Pipe and Fittings – Schedule 40 PVC/CPVC

PVC/CPVC Primer

PVC/CPVC Solvent Cement

Stainless Steel Screw / Screwdriver (optional)

NOTE: All pipe, fittings, primer, and solvent cement MUST conform to ANSI and ASTM standards.
Refer to table 1 below for approved piping materials.

TABLE 1: Pipe and Fitting Specifications

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Special Venting Requirements for Installations in Canada

Installation in Canada must conform to the requirements of CSA B149.1 code. Vent systems must be
composed of pipe, fittings, cements, and primers listed to ULC S636. This concentric termination kit
has been certified to ULC S636 for use with those IPEX PVC vent components which have been certified to
this standard. In Canada, the primer and cement must be of the same manufacturer as the vent system;
do not mix primers and cements from one manufacturer with a vent system from a different
manufacturer. Follow the manufacturer’s instructions in the use of primer and cement and never use
primer or cement beyond its expiration date.

The safe operation, as defined by ULC S636, of the vent system and this termination kit is based on
following these installation instructions, the vent system manufacturer’s installation instructions, and
proper use of primer and cement. Acceptability under Canadian standard CSA B149.1 is dependent upon
full compliance with all installation instructions. Under this standard, it is recommended that the vent
system be checked once a year by qualified service personnel.
The authority having jurisdiction (gas inspection authority, municipal building department, fire
department, etc.) Should be consulted before installation to determine the need to obtain a permit.

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