Knock Outs; Vent And Combustion Air Connections; Hammer And Screwdriver Used For Knockout; Horizontal Furnace Installation - Arcoaire N9MP1 Installation Instruction

Knock Outs

CAUTION
!
CUT HAZARD.
Failure to follow this caution may result in personal
injury.
Sheet metal parts may have sharp edges or burrs.
Use care and wear appropriate clothing, safety
glasses and gloves when handling parts and
servicing furnaces.
Use a hammer and screwdriver to strike a sharp blow (See
Figure 4) directly to the knockout tie points or use a hammer in the
upper left corner of the desired knockout. Remove any burrs and
sharp edges.
Hammer and Screwdriver used
Figure 4
for Knockout
25--40--06
NOTE: If a knockout does not come out after two sharp blows, pull
and snip as needed to remove the knockout.

Installation Positions

This furnace can be installed in an upflow, horizontal (either left or
right) or downflow airflow position. DO NOT install this furnace on
its back. For the upflow position, the return air ductwork can be
attached to either the left or right side panel and/or the bottom. For
horizontal and downflow positions, the return air ductwork must be
attached to the bottom. The return air ductwork must never be
attached to the back of the furnace.
Furnace Installation Considerations
The installation of the furnace for a given application will dictate the
position of the furnace, the airflow, ductwork connections, vent and
combustion air piping. Consideration must be given to the
following:
Condensate Trap and Drain Lines
The supplied condensate trap must be attached to the furnace
side panel on either the left or right side. For horizontal
installations, the drain trap is vertically attached to the side panel
below the furnace. A minimum clearance of 6" below the furnace is
required for the condensate trap. Downward slope of the
condensate drain line from the condensate trap to the drain
location must be provided. Adequate freeze protection of the drain
trap and the drain line must be provided. See "Condensate Drain
Trap" section for further details.
Leveling
Proper leveling of the furnace must be provided to insure proper
drainage of the condensate from the furnace. The furnace must be
1
level to within / " from front to back and from side to side for upflow
4
8
and downflow installations or top to bottom for horizontal
installations.

Vent and Combustion Air Connections

For venting information literature, call 931.270.4100 with the
complete model and serial number of the furnace.
NOTE: Furnaces installed in Canada must use vent systems that
are certified to the standard for Type BH Gas Venting Systems,
ULC--S636. ULC--S636 certified plastic vent system material or
the components of ULC--S636 certified vent systems must not be
interchanged with other vent systems or unlisted pipe/fittings. Vent
components supplied with the furnace and components in factory
authorized vent kits may be used with ULC--S636 certified vent
systems.
The ULC--S636 certified plastic components, and specified
primers and glues of the certified system must be from a single
system manufacturer and not intermixed with other system
manufacturer's vent system parts.
The first 3 ft. (900 mm) of the venting system must be readily
accessible for inspection.
The combustion air system is not required to be ULC--S636
certified.
On the Dual Certified furnace, the vent and combustion air pipes
attach to the furnace through the top panel for the upflow and
horizontal installations. For the downflow installation, the vent and
combustion air pipes attach to the furnace through the alternate
locations on the furnace side panels.
Note: On the Direct Vent furnace, the vent pipe attaches to the
furnace through the side panels. The combustion air pipe attaches
to the top panel or to the alternate location on the side panel.
On the Single Pipe furnace, the vent pipe attaches to the furnace
through the furnace side panels.
Note: Repositioning of the combustion blower is required for the
vent pipe connection to the furnace through the "right side" panel.
See "Vent and Combustion Air Piping" section for further details.

Horizontal Furnace Installation

This furnace can be installed horizontally in an attic, basement,
crawl space, alcove, or suspended from a ceiling in a basement or
utility room . See Figure 5. Do not install furnace on its back or in
the reverse airflow positions as safety control operation will be
adversely affected.
Specifications are subject to change without notice
Typical Horizontal Installation
Figure 5
Inlet Pipe (not used on Single Pipe model)
Vent
Pipe
NOTE: 6" bottom clearance required for condensate trap. Auxiliary drain
pan is required if over a finished living space.
Attic
Condensate
Trap
25--23--34
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