Nordyne M1B 066 Скачать руководство пользователя страница 8

Страница: 8 / 36

FURNACE INSTALLATION

NOTE:

These Installation procedures are suggested for

typical furnace installations. Since each installation is
different, the sequence of instructions may differ from
the actual installation. Only qualifi ed HVAC technicians
should install this furnace.

The installer must be familiar with and comply with all
codes and regulations applicable to the installation of
these heating appliances and related equipment. In
the absence of local codes, the installation must be in
accordance with the current provisions of one or more of
the following standards.

• Federal Manufactured Home Constructions & Safety

Standard (H.U.D. Title 24, Part 3280.707[a][2])

• American National Standard (ANSI-119.2/NFPA-501C)

for all recreational vehicle installations.

• American National Standard (ANSI-Z223.1/NFPA-54)

and/or CAN/CSA B149 for all gas-fi red furnace models.

• American National Standard (ANSI-Z95.1/NFPA-31)

and/or CSA B139 for all oil-fi red furnace models.

• American National Standard (ANSI-C1/NFPA-70) and/or

CSA 22.1 Canadian Electric Code Part 1 for all electrical
fi eld wiring.

• Units have been researched under standards UL 307A

& B, UL727-1999, ANSI Z21.47b/CSA 2.3b-2008, and
CSA B140.10.

General Information

• The furnace must be leveled at installation and attached

to a properly installed duct system.

Do not use the back

of the furnace for return air.

See page 7 for circulating

requirements.

• The furnace must be installed so that all electrical

components are protected from water.

• The dimensions of the room or alcove must be able to

accommodate the overall size of the furnace and the
installation clearances listed in Table 1 and Figure 3
(page 6)

• The furnace must be installed upstream from a

refrigeration system.

• The M1 Series gas and M5 Series oil furnace is

certifi ed for use on wood fl ooring or supports, but must
be installed on top of a duct connector. This factory
supplied accessory must be installed in the fl oor cavity
and attached to the supply air duct before the furnace
is installed.

Locating & Cutting Duct Openings

Floor cut-outs and fuel line holes must be carefully located
to avoid misalignment of the furnace, and vent piping. To
locate standard ducts see Figure 6 (page 9). For round
ducts, see Figure 7.
1. Measure 10” from the rear wall or alcove and mark the

centerline of the cut-out on the fl oor.

2. Using the centerline as a starting point, draw the rest

of the duct cut-out to the dimensions shown in Figures
6 or 7.

3. Cut out the fl oor opening 1/16” larger than the actual

cutout drawn. This will allow some clearance when
installing the duct connector.

4. Measure from the top of the fl oor down to the top of

the supply air duct to obtain the depth of the fl oor
cavity.

NOTE:

The depth of the fl oor cavity shown as

“X” in Figure 9 (page 9) will determine the correct duct
connector.

5. Determine which duct connector to use from Table 3

(page 9).

6. Measure and drill gas hole and cut out for cooling coil

(if applicable). See Figures 6 or 7.

Standard Duct Connector Installation

The standard duct connector is designed for use on ducts
12” in width. However ducts narrower than 12” may not
allow suffi cient clearances for this type of installation. For
an alternate installation method, see page 9.

1. Center the duct connector in the fl oor opening with

bottom tabs resting on top of the supply air duct.

2. Mark the cut-out area on the supply air duct by tracing

around the connector tabs (Figure 8, page 9) of the
duct connector.

3. Remove the duct connector and cut out the marked

area of the supply air duct 1/4” larger the actual cutout
drawn.

4. Install the duct connector back in the fl oor opening with

the bottom tabs extending into the supply air duct.

5. Install the mounting plate (Figure 8) under the back

side of the duct connector. Align the screw holes in
both components.

6. Secure the duct connector and the mounting plate to

the wood fl oor with appropriate size screws.