Lochinvar 51-211 operation manual Material Standard, Vent fittings, Primer

Installation & Operation Manual

3 General venting (continued)

PVC/CPVC

This product has been approved for use with the PVC/CPVC				Examples: 1. Seven (7) feet vertical
vent materials listed in Table 3D.								2. Connector + 90° elbow + 2 feet horizontal
Installing vent and air piping								3. One (1) foot	vertical +		90° elbow + 1 foot
								horizontal
	￿ WARNING	The vent connection to the appliance must			1.		Work from the boiler to vent or air termination. Do not
		be made with the starter piece provided					exceed the lengths given in this manual for the air or vent
		with the appliance if PVC/CPVC vent is to
							piping.
		be used. The field provided vent fittings
					2.		Cut pipe to the required lengths and deburr the inside
		must be cemented to the CPVC pipe section					and outside of the pipe ends.
		using an “All Purpose Cement” suitable for			3. Chamfer outside of each pipe end to ensure even
		PVC and CPVC pipe. Use only the vent
							cement distribution when joining.
		materials, primer, and cement specified in
					4. Clean all pipe ends and fittings using a clean dry rag.
		Table 3D to make the vent connections.
							(Moisturewillretardcuringanddirtorgreasewillprevent
		Failure to follow this warning could result
							adhesion.)
		in fire, personal injury, or death.
					5.		Dry fit vent or air piping to ensure proper fit up before
		Use only cleaners, primers, and solvents
	NOTICE						assembling any joint. The pipe should go a third to
		that are approved for the materials which
							two-thirds into the fitting to ensure proper sealing after
		are joined together.
							cement is applied.
		All PVC vent pipes must be glued, properly			6.		Priming and Cementing:
	NOTICE
		supported, and the exhaust must be					a. Handle fittings		and pipes		carefully to prevent
		pitched a minimum of a 1/4 inch per foot						contamination of surfaces.
		back to the boiler (to allow drainage of					b. Apply a liberal even coat of primer to the fitting
		condensate).						socket and to the pipe end to approximately 1/2"
		Insulation should not be	used on PVC					beyond the socket depth.
	￿ WARNING
							c.	Apply a second primer coat to the fitting socket.
		or CPVC venting materials. The use of					d. While primer is still wet, apply an even coat of
		insulation will cause increased vent wall
		temperatures, which could result in vent						approved cement to the pipe equal to the depth of
		pipe failure.						the fitting socket along with an even coat of
								approved cement to the fitting socket.
	Table 3D PVC/CPVC Vent Pipe, and Fittings						e.	Apply a second coat of cement to the pipe.
							f.	While the cement is still wet, insert the pipe into
	Approved PVC/CPVC Vent Pipe and Fittings
								the fitting, if possible twist the pipe a 1/4 turn as
	Item	Material	Standard					you insert it.	NOTE:		If voids are present,
		PVC Schedule 40, 80	ANSI/ASTM D1785					sufficient cement was not applied and joint could
	Vent pipe							be defective.
		PVC - DWV	ANSI/ASTM D2665
							g. Wipe excess cement from the joint removing ring or
		CPVC Schedule 40, 80	ANSI/ASTM F441
								beads as it will needlessly soften the pipe.
		PVC Schedule 40	ANSI/ASTM D2466
	Vent fittings					Figure 3-7Near Boiler PVC/CPVC Venting
		PVC Schedule 80	ANSI/ASTM D2467
		CPVC Schedule 80	ANSI/ASTM F439
	Pipe Cement /	PVC	ANSI/ASTM D2564
	Primer	CPVC	ANSI/ASTM F493							CPVC STARTER PIECE
	NOTICE: DO NOT USE CELLULAR (FOAM) CORE PIPE

NOTE: In Canada, CPVC and PVC vent pipe, fittings and cement/ primer must be ULC-S636 certified.

￿ WARNING For models 51 - 106 when transitioning from 2 to 3 inch vent diameter, a 2" pipe section and

2"to 3" increaser are required to be CPVC when PVC/CPVC vent is used.

For installations using 2" vent, the first seven

(7) equivalent feet of vent must be CPVC (field supplied). See examples on this page.

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