York P2DHX16F12001, P3DHX12F08001, P4LBX20F19001 Common Chimney Problems, Draft Regulator Control

Fig. 2: Common Chimney Problems

Table 2: Common Chimney Problems

Refer to Figure 2

Key	Trouble	Diagnostic	Remedy
	Top of chimney		Extend chimney
			above all sur-
A	lower than sur-	Observation
			rounding ob-
	rounding ob-
			jects within 30
	jects
			feet.
B	Chimney Cap	Observation	Remove
	or ventilator.
	Coping restricts		Make opening
C		Observation	as large as
	opening.		inside of chim-
			ney.

	Obstruction in	Can be found	Use weight to
		by light and
D	chimney
		mirror reflecting	break and dis-
		conditions in	lodge.
		chimney.
	Joist protruding	Lowering a light	Must be han-
E			dled by compe-
		on an extension
	into chimney.		tent masonry
		cord.
			contractor.
		Smoke test -
		build smudge	Must be han-
	Break in chim-	fire blocking off
F			dled by compe-
		other opening,
	ney lining.		tent masonry
		watching for
			contractor.
		smoke to es-
		cape.
	Collection of		Clean out with
		Lower light on	weighted brush
G	soot at narrow
			or bag of loose
	space in flue	extension cord.
			gravel on end
	opening.
			of line.
H	Offset	Lower light on	Change to
			straight or to
		extension cord.
			long offset.
			The least im-
	Two or more	Found by in-	portant opening
I			must be closed,
	openings to the	spection from
			using some
	same chimney.	basement.
			other chimney
			flue.
	Loose-seated		Leaks should
J		Smoke test.	be eliminated
	pipe in flue		by cementing
	opening.		all pipe open-
			ings.
		Measurement	Length of pipe
	Smoke pipe	of pipe from	must be re-
		within or obser-	duced to allow
K	extends into
		vation of pipe	end of pipe to
	chimney.
		by means of a	be flush with
		lowered light.	inside of tile.
	Failure to ex-	By inspection or	Extend partition
L	tend the length
	of flue partition	smoke test.	to floor level.
	to the floor.
M	Loose-fitted	Smoke test.	Close all leaks
	clean-out door.		with cement.

DRAFT REGULATOR CONTROL

This device is used in conjunction with conventional chimney venting. This control (or draft regulator) automatically maintains a constant negative pressure in the furnace to obtain maximum efficiency. It ensures that proper pressures are not exceeded. If the chimney does not develop sufficient draft, the draft control cannot function properly. The draft regulator, must be installed within the same room or enclosure as the furnace, and should not interfere with the combustion air supplied to the burner. The control should be located a minimum of 3 flue pipe diameters from the furnace breeching and installed in accordance to the instructions supplied with the regulator.

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