Lochinvar 801, 400 operation manual Condensate disposal, Condensate drain

				Installation & Operation Manual
9 Condensate disposal
Condensate drain				Use materials approved by the authority
			NOTICE
				having jurisdiction. In the absence of other
1. This boiler is a high efficiency appliance that produces				authority, PVC and CPVC pipe must comply
	condensate.			with ASTM D1785 or D2845. Cement and
2. The side of the boiler has a 1/2 inch (12.7 mm) PVC				primer must comply with ASME D2564 or
				F493. For Canada use CSA or ULC certified
	union for connection of a 1/2 inch (12.7 mm) PVC pipe
				PVC or CPVC pipe, fittings, and cement.
	(FIG. 9-1).
				To allow for proper drainage on large
			NOTICE
3. Slope condensate tubing down and away from the boiler				horizontal runs, a second line vent may
	into a drain or condensate neutralizing filter. Condensate			be required and tubing size may need to
	from the Knight XL will be slightly acidic (typically with			increase to 1 inch (25 mm).
	a pH from 3 to 5). Install a neutralizing filter if required			The	condensate line		must	remain
	by local codes.
				unbstructed, allowing free flow of condensate.
	A Neutralizer Kit (FIG. 9-1) is available from the factory
				If condensate is allowed to freeze in the line
	(KIT3087 for Models 400 - 501 and KIT3046 for Models			or if the line is obstructed in any other
	601 - 801).			manner, condensate can exit from the boiler
4.	Install the 1/2 inch (12.7 mm) PVC tee assembly (shipped			tee, resulting in potential water damage to
				property.
	with the unit) as shown in FIG. 9-1.
		8. A condensate removal pump is required if the boiler is
5.	Leave the top of the 1/2 inch (12.7 mm) tee OPEN. This		below the drain. When installing a condensate pump, select
	is needed as a vacuum break.		one approved for use with condensing boilers and furnaces.
6.	Do not expose condensate line to freezing temperatures.		The pump should		have	an overflow	switch to	prevent
			property damage from			condensate spillage. The		switch

7. Use only plastic tubing or piping as a condensate drain

should be wired in series with the blocked drain switch

line (FIG. 9-1).

inside the boiler (see FIG. 10-1 on page 56).

Figure 9-1Condensate Disposal

1/2" PVC TEE ASSEMBLY
(FACTORY SUPPLIED)
	1/2" PVC UNION
	(FACTORY SUPPLIED)
	NEUTRALIZER KIT
FLOOR DRAIN OR	KIT3087 shown for illustration purposes.
DRAIN PAN

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