Detailed Installation Steps; Typical Installation Sequence; Step 1. Framing - Lennox MPD35ST-NM-B Installation Instructions Manual

Merit plus series direct vent gas fireplace heaters
Hide thumbs Also See for MPD35ST-NM-B:
Table of Contents

Advertisement

DETAILED INSTALLATION STEPS

. Remove the shipping carton.
2. Remove the top louvered panel and locate
the pressure relief plates (see Figure 10 ).
3. Lift the pressure relief plates and remove
the cardboard from beneath each plate (be
careful not to damage the white gasket).
Pressure Relief Plates
Remove Cardboard Before
Using Appliance
* Backside of unit shown here
Figure 10
* NOTE: INSTALLATION DIAGRAMS AND
INSTRUCTIONS SHOW THE FRONT OF
THE APPLIANCE AS THE SIDE WHICH HAS
VALVE ACCESS, EXCEPT WHERE NOTED.
Top Louver Panel
Control Compartment Access
Panel (hinges down)
(See-Through Model Shown)
Figure 11
- Unit Parts Identification
8

TYPICAL INSTALLATION SEQUENCE

The typical sequence of installation follows,
however, each installation is unique resulting
in variations to those described.
See the Page numbers references in the follow-
ing steps for detailed procedures.
Step . (Page 8) Construct the appliance fram-
ing. Position the appliance within the framing
and secure with nailing flanges.
Step 2.
(Page 11) Route gas supply line to
appliance location.
Step 3.
(Page 11) Install the vent system
and exterior termination.
Step 4.
(Page 25) Field Wiring
a. Millivolt Appliances – Install the OFF/ON
burner control switch.
b. Electronic Appliances – Connect 120 VAC
electrical power to the appliance receptacle.
Step 5.
(Page 26) Install blower kit (optional
equipment).
Step 6.
(Page 27) Make connection to gas
supply.
Step 7.
(Page 28)
Checkout appliance
operation.
Step 8.
(Page 28) Install grate, vermiculite,
embers and logs.
Step 9.
(Page 31) Install glass enclosure
panels.
Step 0. (Page 31) Adjust burner primary air
shutter to achieve proper flame appearance.
Step . (Page 33) Install the decorative trim
and hoods.
Step . FRAMING
Frame these appliances as illustrated in Figure
13A (See-Through Models) and 13B (Penin-
sula Models). All framing details must allow for
a minimum clearance to combustible framing
members as shown in Table 7 on Page 7.
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
If the appliance is to be elevated above floor
level, a solid continuous platform must be
constructed. Headers may be in direct contact
with the appliance top spacers but must not
be supported by them or notched to fit around
them. All construction above the appliance must
be self supporting, DO NOT USE THE APPLI-
ANCE FOR STRUCTURAL SUPPORT.
Side Nailing Flanges
The fireplace should be secured to the fram-
ing at the side(s) of the appliance using the
factory-provided nailing flanges. Install the 8
nailing flanges as shown in Figure 12 using the
existing screws. Position the fireplace within
the framing. When required, the tabs may be
bent 90 degrees by hand or with the assistance
of a hammer. Use wood screws to secure the
nailing flanges to the framing. See Table 7 on
Page 7 for clearances of framing members
to cabinet parts. The nailing flange itself can
directly contact framing.
Floor Nailing Tabs
Secure the fireplace to the floor as shown in
Figure 12.
Nailing Flanges
Remove these screws and use them
when installing nailing flanges.
Nailing Flanges
Turn nailing tabs down and se-
cure to the floor with 8d nails
or other appropriate fasteners
on both sides of appliance.
(See-Through Model Shown)
Figure 12

Hide quick links:

Advertisement

Table of Contents
loading

Table of Contents