Majestic 33BDVT Installation Instructions And Homeowner's Manual - page 17
17
BDVT Series Direct Vent GaS Fireplace
10003358
When installing the 33BDVT with a Vertical Through-
the-Roof configured flue system the restrictor plate,
(#10002495) supplied with the appliance MUST BE
FITTED TO THE APPLIANCE at installation.
Fitting The Restrictor Plate
1. Remove the window frame assembly.
2. Locate the firebox baffle assembly in the top rear
area of the firebox. (Fig. 27)
3. Remove the four (4) nuts along the front edge, and
the three (3) screws along the rear edge of the baffle
assembly. Remove the baffle assembly from the
firebox.
4. Remove the two (2) screws from the top face of the
baffle assembly. (Fig. 28) Place the restrictor plate
as shown in Figure 29 and secure by refitting the
screws.
Vertical Restrictor Plate
(33BDVT only)
Firebox Baffle Assembly
FP1246
Fig. 27 Firebox baffle assembly.
Appliance View from Lower Front
Use these screws to
attach the restrictor plate.
FP1247
Fig. 28 Remove two (2) top screws, then place restrictor
plate.
The legs of the restrictor
plate must go down.
FP1248
Fig. 29 Place restrictor with legs pointing down.
5. Refit the baffle assembly to the firebox, replacing the
three (3) screws and four (4) nuts.
6. Refit window frame assembly as per the appropriate
sections of this manual.
Vertical Through-the-Roof Installation
1. Locate your fireplace.
2. Plumb to center of the (4” (102mm) flue collar from
ceiling above and mark position.
3. Cut opening equal to 9
³⁄₈
” x 9
³⁄₈
” (240 x 240mm).
4. Proceed to plumb for additional openings through
the roof. In all cases, the opening must provide a
minimum of 1” (25mm) clearance to the vent pipe,
i.e., the hole must be at least 9
³⁄₈
” x 9
³⁄₈
” (240 x
240mm).
5. Place fireplace into position.
6. Place firestop(s) #7DVFS or Attic Insulation Shield
#7DVAIS into position and secure. (Fig. 30)
11"
(279mm)
11"
(279mm)
Attic Insulation
Shield
Joist
Ceiling
Installation
Joist
Upper Floor
Firestop Spacer
Nails (4)
CFM100a
Fig. 30 Place firestop spacer(s) and secure.