Lochinvar 51-211 Prepare wall penetrations, 4B Polypropylene Sidewall Termination Assembly

4 Sidewall direct venting

Prepare wall penetrations

Installation & Operation Manual

Figure 4-4BPolypropylene Sidewall Termination Assembly

1.Use the factory supplied wall plate as a template to locate the vent and air intake holes and mounting holes.

Air pipe penetration:

a.Cut a hole for the air pipe. Size the air pipe hole as close as desired to the air pipe outside diameter.

Vent pipe penetration:

a.Cut a hole for the vent pipe. For either combustible or noncombustible construction, size the vent pipe hole with at least a 1/2 inch clearance around the vent pipe outer diameter:

•3½ inch hole for 2 inch vent pipe

•4½ inch hole for 3 inch vent pipe

Drill 3/16" diameter holes for inserting the plastic anchors into the wall.

2. For Polypropylene Only: Install the vent and air intake

sidewall adapters from Table 3F on page 20 into the vent

plate. Slide the sidewall retaining bracket down the

SIDEWALL ADAPTER (VENT)

GALVANIZED

THIMBLE

SIDEWALL

ADAPTER

(AIR)

WALL

PLATE

SIDEWALL

RETAINING

PLATE

VENT

PLATE

VENT

CAP

IMG00085

	sidewall adapters flush to the vent plate (FIG. 4-4B).
3.	For PVC/CPVC Only: Install the vent and air intake
	piping through the wall into the vent plate openings.
	Use RTV silicone sealant to seal the air pipe. Use the
	cement/primer listed in Table 3D on page 19 to seal the
	vent pipe.
4.	Mount and secure the vent plate to the wall, using stainless
	steel screws.
5.	Seal all gaps between the pipes and wall. Seal around the
	plate to the wall assuring no air gaps.
6.	Assemble the vent cap to the vent plate (see FIG.'s 4-4A
	and 4-4B). Insert the stainless steel screws into the vent
	cap screw hole openings and securely attach the vent cap
	to the vent plate.
7.	Seal all wall cavities.
8.	PVC/CPVC terminations are designed to accommodate
	any wall thickness of standard constructions per the
	directions found in this manual.
9.	Stainless steel terminations are designed to penetrate
	walls with a thickness up to 9.25 inches of standard
	construction.

Figure 4-4APVC/CPVC Sidewall Termination Assembly

VENT AIR

Prepare wall penetrations (Alternate - Field Supplied Option)

1.Air pipe penetration:

a.Cut a hole for the air pipe. Size the air pipe hole as close as desired to the air pipe outside diameter.

2.Vent pipe penetration:

a.Cut a hole for the vent pipe. For either combustible or noncombustible construction, size the vent pipe hole with at least a 1/2 inch clearance around the vent pipe outer diameter:

•3½ inch hole for 2 inch vent pipe

•4½ inch hole for 3 inch vent pipe

b.Insert a galvanized metal thimble in the vent pipe hole as shown in FIG. 4-4C.

3.Use a sidewall termination plate as a template for correct location of hole centers.

4.Follow all local codes for isolation of vent pipe when passing through floors or walls.

5.Seal exterior openings thoroughly with exterior caulk.

Figure 4-4CAlternate Sidewall Termination Assembly w/Field Supplied Fittings

ELBOW

AIR PIPING

VENT PIPING

BIRD SCREEN

AIR PIPING

VENT PIPING

WALL PLATE

GALVANIZED

THIMBLE

24

CENTERLINE WIDTH

VENT PLATE

VENT CAP

GALVANIZED		ELBOW
THIMBLE
	SIDEWALL	BIRD SCREEN
	TERMINATION PLATE