Langley/Empire DV-20E-5 Installing Wall Bracket Figures 5 and, Figure Venting Figures 7, 8 and

Installing Wall Bracket (Figures 5 and 6)

After finding a location for the furnace, gas supply and vent, the wall bracket must be positioned and installed. The bracket should be mounted to the wall studs, if possible, or anchored solidly to the wall. Use the (2) 10 x 1" (25mm) hex-head screws or (2) plastic anchors provided. Drill (2) 5/16" (8mm) diameter holes in wall if plastic anchors are used. Attach the two wall mounting brackets to the casing back by using (4) 10 x 1/2" (13mm) hex-head screws provided.

	Figure 5
CASING	4" (102mm)	WALL
	WALL MOUNTING BRACKET
BACK
	#10 X 1"

#10 X 1/2"

WALL

BRACKET

#10 X 1/2"

Figure 6

EXHAUST AIR

ORANGE SILICONE

ELBOW CONNECTOR

	INTAKE AIR
	BLACK FLEXIBLE HOSE
	Figure 8
VENT TUBING	SILICONE COUPLING
	HOSE CLAMP

EDGE

HOSE CLAMP

EXHAUST CONNECTIONS

INTAKE FLEX HOSE CONNECTION

WITH INTERNAL METAL COUPLING

VENT COUPLING CONNECTIONS

EXTENDED VENT

Figure 9

Venting (Figures 7, 8 and 9)

This unit is vented directly out the back using the concentric vent tube assembly provided. See Figure 2 for vent hole location. This hole location can be conveniently moved closer to unit exhaust outlet tube to avoid wall stud interference if necessary. The orange silicone exhaust elbow would need to be cut to length. Do not

KEEP CAP ON

UN-USED AIR

INTAKE OPENING

EXHAUST ELBOW MAY BE CUT TO LENGTH TO FIT VENT BOX. SECURE IN PLACE USING HOSE CLAMPS PROVIDED.

WALL

MOUNTING PLATE

INTAKE AIR

EXHAUST

INTAKEFLEX HOSE WITH CLAMPS

locate vent directly behind the exhaust outlet. Do not use the orange silicone elbow for extended vent runs where the possibility of flue condensate exists unless the run is horizontal and the elbow is sloped downward away from the heater. See Figure 12 for extended vertical venting.

The vent provided will accommodate walls up to 10" thick and can be cut shorter for thinner walls if desired by using a hacksaw or cut-off saw. Be sure to leave the minimum 3/4" of tube length extending beyond the outside wall plate. Both the inner and outer tube will be cut to the same length as the inner exhaust tube has an extension piece which is added during final outside assembly.

Figure 7

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