Vermont Casting ODSR36A, ODSR42A manual Installing Outside Air Kit, Installing the Chimney System

Majestic Fireplaces® ODSR Series "A"

Installing Outside Air Kit

An outside air kit is not installed in all ODSR Series "A" Fireplaces. If desired, or if local codes mandate the use of an air kit, then an AKU1 is required . If the outside air kit is to be used, the AKU1 MUST be installed BEFORE the fireplace is enclosed. Refer to the AKU1 instructions for field installation.

Installing the Chimney System

Start by attaching the first chimney section to the collar on top of the fireplace.

Install the pipe as pictured in Figure 15. When you get a good lock, you will hear the pipe clearly snap together. Once sections are snap-locked in place, it is extremely difficult to get them apart. Make sure the pipe is firmly snapped and locked together as each

Elbow Strap

Angled Strap

FP270/271

Support Structure

Elbow Strap (must be tight)

Ceiling Hole

Framing

Angle Firestop

Chimney Support Strap (must be tight)

pipe section is mounted.

Pipe Section

Pipe

Rim

Fig. 16 Attach straps to a structural framing member.

Hole sizes listed in Figure 11 for angled firestop spac- ers provide minimum required air space to chimney pipe for ceiling thickness up to 8" (203 mm). When combined thickness of ceiling material, ceiling joists and

Pipe Rim

Hem

Lance

FP558

flooring material exceeds 8" (203 mm), adjustments must be made in framing to assure that minimum air spaces to chimney are maintained.

Proper Firestop Spacer Installation

Figure 17 shows different installation procedures for both an area that is an attic and an area that is not an attic.

If the area above the ceiling is not an attic, position the firestop spacer with the flange on the ceiling side and the angled portion extending up into the hole.

If the area above the ceiling is an attic, position the firestop spacer with the flange on the top of the framed

Fig. 15 Install pipe, listening for the snap-lock to fasten.

When installing elbows, only outer pipe will snap- lock. Middle pipes simply slide into position. Be sure to always attach straps on upper elbow to a structural framing member. (Fig. 16)

Continue installing the pipe as required until pipe is installed up through the ceiling. At this point, you must install a firestop spacer.

Installing the Firestop Spacer

in the Ceiling Hole

A firestop spacer is used to keep pipe spaced properly and required for safety.

Nail the firestop spacer (at each corner) to the framing members of the ceiling hole. NOTE: A firestop spacer is not required at the roof.

hole and the angled portion extending down into the hole.

Firestop spacers are not available for nor are they required on vertical walls.

DO NOT put any sealant around the area where the outer pipe slides through the firestop spacer. If you seal this area, it may cause a fire hazard.

Canadian Requirements

for Insulation Shield

In Canada, an attic insulation shield is required to pre- vent attic insulation from contacting the chimney sec- tion. Framing dimensions for the chimney hole should measure 14¹⁄₂" x 14¹⁄₂" (368 x 368 mm). An attic shield MUST be installed on top of attic joists (above the floor level). (Fig. 18)

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