Delta PG PLUS-25 warranty Venting Option Direct Vent / Vertical

Venting and Combustion Air Installation

Venting Option - Direct Vent / Vertical

In this vent application the PERFORMANCE PLUS is vented vertically through the roof or an unused chimney using the Triangle Tube Concentric Vertical Vent Kit.

The installer should consider the following when choosing this vent option:

a.The vent system should contain a conden- sate trap located near the unit as shown in Fig. 20, page 33.

b.The vent system must pitch back to the unit 1/4 inch per foot as a minimum.

c.The vent system must maintain the follow- ing clearances to combustibles:

-0 inches when there are no horizontal offsets and fully enclosed by com- bustibles on all sides

-1 inch when there are horizontal offsets and fully enclosed by combustibles on all sides.

-0 inches with or without offsets and unenclosed or with 1 side open and a maximum 3 sides enclosed with com- bustible materials.

-0 inches with or without offsets and enclosed with non combustible materials.

Venting Option - Non-Direct Vent / Horizontal

In this vent application the PERFORMANCE PLUS is vented horizontally through a wall using only approved 3-inch stainless steel vent material and using room air for combustion.

The installer should consider the following when choosing this vent option:

a.The vent system must contain a con- densate trap located near the unit as shown in Fig. 21 page 34.

b.The vent system must be pitched a min- imum 1/4 inch per foot or as specified by the vent manufacturer.

BEST PRACTICE

Although the vent system is allowed to pitch away from the unit, it is recom- mended that the vent system pitches toward the unit with a condensate drain installed as close to the unit as possible. Opting to pitch the vent system away poses potential damage to the building exterior or to the surrounding landscape and/or potential risks of icing if conden- sate is formed.

c.Penetration at the wall requires a wall thimble.

d.Clearance to combustibles must be maintained per the vent manufacturer’s requirements. Reference the vent man- ufacturer’s installation instructions for additional details.

NOTICE

Maintain a minimum 2-inch clearance to combustible wall and 1-inch clearance to non-combustible in the absence of a manufacturer’s recommended clearance when penetrating a sidewall.

e.At a minimum a 3-inch elbow should be placed on the combustion air inlet of the unit. This will prevent an acciden- tal blockage should anything be placed on top of the unit.

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