11
WMC Series Woodburning Fireplace
20000583
Installing Outside Air Kit
An outside air kit is installed in all WMC Series Fireplaces. If
desired, or if local codes mandate the use of an air kit, then
an AK-MST is required to complete the installation (from
air kit to the outdoors). If the outside air kit is to be used,
the AK-MST
MUST
be installed
beFORe
the fireplace is
enclosed. Refer to the AK-MST instructions for field instal-
lation. The outside air control lever is located at the front
edge of the left side brick. To ‘open’, push the control lever
down toward the hearth brick. To ‘close’, pull the control
lever up and over. (Fig. 16)
NOTe:
For Canada installations, model CCE-SK Chimney
Collar Enclosure must be used on this fireplace with Model
SK8 double wall chimney systems.
FPC558
Fig. 17
Install pipe, listening for the snap-lock to fasten.
UP
FPC558
WMC
Pipe install
Circulating models
1/29/99 djt
Inner Pipe Section
Pipe
Rim
Pipe
Rim
Hem
Lance
FP270/271
CR Series
2/19/99 djt
elbow Strap
Angled Strap
Fig. 18
Attach straps to a structural framing member.
FP270/271
Support Structure
Elbow Strap
(Must be tight)
Ceiling
Hole
Framing
Angle Firestop
Chimney Support Strap
(Must be tight)
CLOSED
OPEN
WF 710
OUTSIDE AIR LEVER
WOOD FIREPLACES
5/28/98
FP710
Fig. 16
Outside air operation.
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 17. 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 pipe section is
mounted.
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 mem-
ber. (Fig. 18)
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 sizes listed in Figure 13 for angled firestop spacers
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 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 19 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.