Round Duct Connector Installation; Installing The Furnace - Nordyne M1MB 056 Installation Instructions Manual

DUCT CONNECTOR
BEND TABS TIGHTLY
AGAINST SUPPLY AIR DUCT
Figure 10. Duct Connector Tabs
OPTION 1
Remove
this
Flap
Remove
this
Flap
Figure 11. Narrow Air Duct Openings
Duct connector tabs
Narrow
Duct
Duct
Flap
Connector
Sheet metal
Narrow
screws
Figure 12. Narrow Ducts
DUCT
CONNECTOR
14" SUPPLY CONNECTION
Figure 13. Round Duct Connector Installed
10
SUPPLY
AIR DUCT
OPTION 2
Supply
Cut Here
Air Duct
Cut Here
Staples or sheet metal screws
Narrow
Duct
Duct
Duct
SCREWS
MOUNTING
PLATE
FUEL LINE
HOLES

Round Duct Connector Installation

1. Apply a bead of caulking, mastic, or other approved
sealant around bottom side of connector.
2. Install and center the duct connector in the fl oor opening.
3. Install the mounting plate under the back side of the
duct connector. See Figure 13. NOTE: Align the screw
holes in both components.
4. Secure the duct connector and the mounting plate to
the wood fl oor with appropriate size screws.
5. Connect the round supply duct to the underside of the
duct connector and secure them with fi eld supplied
sheet metal screws.
6. Seal all connections with industrial grade sealing tape
or liquid sealant.
NOTE: Requirements for sealing ductwork vary
from region to region. Consult with local codes for
requirements specifi c to your area.

Installing the Furnace

Sides and back of the furnace may be enclosed by wall
framing such as in a closet or alcove. The dimensions of the
room or alcove must be able to accommodate the overall
size of the furnace and the installation clearances outlined
on page 5 and Figures 1 - 4 (page 6). The furnace shall
be appropriately connected to the supply and return air
distribution system as shown in Figures 14 & 15 (page 11).
1. Remove furnace outer door(s) and bottom fuel line
knockout.
2. Place furnace onto duct connector and center with fl oor
opening.
3. Slide onto mounting plate. (Bottom rear slots on furnace
should engage with mounting plate tabs.)
4. Secure front with one (1) fastener at each corner
(Figures 14 or 15).
NOTE: Additional fasteners may be used at rear, sides
or through door frame, as desired, to secure furnace to
closet or alcove framing.
MTG. PLATE TABS
SECURE FURNACE
WITH 2 FASTENERS AT FRONT
CORNER HOLES
Figure 14. "A" & "B" Cabinet Furnaces
SLIDE FURNACE
ALL THE WAY BACK
ONTO MTG. PLATE