Lochinvar SNA500-125, SNR200-100 Venting and combustion air, Canada, Vent pipe and fittings

TM

Installation & Service Manual

2General venting (continued)

Venting and combustion air

The Shield water heater must be vented and ￿ DANGER supplied with combustion and ventilation air as described in this section. Ensure the vent and air piping and the combustion air supply comply with these instructions regarding vent system, air system, and

NOTICE	All vent pipes must be glued, properly
	supported, and the exhaust must be pitched
	a minimum of a 1/4 inch per foot back to the
	water heater (to allow drainage of
	condensate).

combustion air quality. See also Section 1 of this manual.

Inspect finished vent and air piping thoroughly to ensure all are airtight and comply with the instructions provided and with all requirements of applicable codes.

Failure to provide a properly installed vent and air system will cause severe personal injury or death.

￿WARNING

This appliance requires a special venting system. The vent connection to the appliance must be made with the CPVC pipe section installed in the appliance. The field provided vent fittings must be cemented to the CPVC pipe section. Use only the vent materials, primer and cement specified in this manual to make the vent connections. Failure to follow this warning could result in fire, personal injury, or death.

Vent piping materials

Requirements for installation in Canada

￿WARNING

NOTICE

Use only the materials listed in Table 2A below for vent pipe, and fittings. Failure to comply could result in severe personal injury, death, or substantial property damage.

Installation must comply with local requirements and with the National Fuel Gas Code, ANSI Z223.1 for U.S. installations or CSA B149.1 for Canadian installations.

1.	Installations must be made with a vent pipe system
	certified to ULC-S636.
	IPEX is an approved vent manufacturer in Canada
	supplying vent material listed to ULC-S636.
2.	The first three (3) feet of plastic vent pipe from the
	appliance flue outlet must be readily accessible for visual
	inspection.
3.	The components of the certified vent system must not be
	interchanged with other vent systems or unlisted
	pipe/fittings. For concentric vent installations, the inner

￿WARNING For closet and alcove installations, CPVC material MUST BE used in a closet/alcove

structure. Failure to follow this warning could result in fire, personal injury, or death.

Table 2A Vent Pipe and Fittings

vent tube must be replaced with field supplied certified

vent material to comply with this requirement.

4. The 3" Concentric Vent Kit available from Lochinvar (see

Section 3 – Sidewall Termination – Optional Concentric

Vent) and the 3" Concentric Vent Kit available from IPEX

are both approved for use on the Shield Water Heater. Both

kits are listed to the ULC-S636 standard for use in Canada.

All vent pipe materials and fittings must comply with the following:

Item	Material	Standards for installation in:
		United States	Canada
	PVC schedule 40	ANSI/ASTM D1785	CPVC and PVC venting must be
			ULC-S636 Certified. IPEX is an
Vent pipe and fittings	PVC-DWV	ANSI/ASTM D2665
			approved manufacturer in Canada
			supplying vent material listed to
	CPVC schedule 40	ANSI/ASTM F441
			ULC-S636.
	PVC	ANSI/ASTM D2564	IPEX System 636
Pipe cement/primer
			Cements & Primers
	CPVC	ANSI/ASTM F493

NOTICE: DO NOT USE CELLULAR (FOAM) CORE PIPE

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