Clean/Inspect Trap Assembly

User’s Information Manual

2 Maintenance schedule (continued)

The condensate trap (FIG. 2-1) must have WARNING the float ball in place during all times of

boiler operation to avoid flue gas emission from the condensate drain line. Failure to ensure the float ball is in place could result in severe personal injury or death.

1.Remove the clean out cap on the bottom of the trap. Let the condensate and any debris drain out.

2.Refill the trap according to the instructions on page 6.

Figure 2-1Condensate Trap

COMPRESSION

FITTING

FLOAT BALL

CONDENSATE

DRAIN

REMOVABLE CAP TO

CLEAN OUT TRAP

	NOTICE	Use materials approved by the authority
	NOTICE	having jurisdiction. In the absence of
		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. For Canada use
		CSA or ULC certified PVC or CPVC pipe,
		fittings, and cement.
		To allow for proper drainage on large
	NOTICE	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. Call your qualified service technician to inspect the boiler and system.

6.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. Call your qualified service technician to inspect the boiler and system.

Figure 2-2Condensate Disposal

Condensate disposal

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

2.The bottom of the boiler has a 1 1/4 inch pipe for connection of the condensate trap (FIG. 2-2).

3.Slope condensate tubing down and away from the boiler into a drain or condensate neutralizing filter. Condensate from the Knight wall mount 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 is available from the factory (Kit 3087).

4.Do not expose condensate line to freezing temperatures.

5.Use only plastic tubing or piping as a condensate drain line (FIG. 2-2).

CONDENSATE

TRAP

REMOVABLE CAP

FOR CLEANING TRAP

SECURE INTO

CONDENSATE DRAIN

STAND PIPE

CONDENSATE DRAIN

STAND PIPE

CONDENSATE DRAIN CONNECTION - ROUTE TO FLOOR DRAIN OR NEUTRALIZING FILTER USING

3/4" CORRUGATED TUBING