Lochinvar 151-286 operation manual Condensate disposal, Condensate drain

Outdoor Knight Boiler Installation & Operation Manual

6 Condensate disposal

Condensate drain

1.This boiler is a high efficiency appliance that produces condensate.

2.The side of the boiler has a 1/2 inch PVC union for connection of a 1/2 inch PVC pipe (FIG. 6-1).

3.Slope condensate tubing down and away from the boiler into a drain or condensate neutralizing filter. Condensate from the outdoor boiler will be slightly acidic (typically with a pH from 3 to 5). Install a neutralizing filter if required by local codes.

A Neutralizer Kit (FIG. 6-1) is available from the factory (Kit 3087).

4.Install the 1/2 inch PVC tee assembly (shipped with the unit) as shown in FIG. 6-1.

5.Leave the top of the 1/2 inch tee OPEN. This is needed as a vacuum break.

6.Do not expose condensate line to freezing temperatures. Precautions should be taken to protect the condensate management and disposal system during extended periods of outdoor temperatures below 32°F.

7.Use only plastic tubing or piping as a condensate drain line (FIG. 6-1).

NOTICE	Use materials approved by the authority
	having jurisdiction. In the absence of
	other authority, PVC and CPVC pipe
	must comply with ASTM D1785 or D2845.
	Cement and primer must comply with
	ASME D2564 or F493.
	To allow for proper drainage on large
NOTICE
	horizontal runs, a second line vent may
	be required and tubing size may need to
	increase to 1 inch.

The condensate line must remain unobstructed, allowing free flow of condensate. If condensate is allowed to freeze in the line or if the line is obstructed in any other manner, condensate can exit from the boiler tee, resulting in potential water damage to property.

8.A condensate removal pump is required if the boiler is below the drain. When installing a condensate pump, select one approved for use with condensing boilers and furnaces. The pump should have an overflow switch to prevent property damage from condensate spillage. The switch should be wired in series with the blocked drain switch inside the boiler (see FIG. 7-1 on page 34).

Figure 6-1Condensate Disposal

1/2" PVC TEE ASSEMBLY

(FACTORY SUPPLIED)

		1/2" PVC UNION
		(FACTORY SUPPLIED)
	NEUTRALIZER KIT
32	FLOOR DRAIN OR
	DRAIN PAN	IMG00387