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INSTALLATION AND SAFETY CODES

USA and Canada – follow all applicable state and local codes – in the

absence of local codes or regulations, refer to current standards of:



Recreation Vehicles ANSI A119.2/NFPA 501C



National Fuel Gas Code ANSI Z223.1 and/or CAN/CGA B149

Installation Codes



This furnace must be installed in accordance with the manufacturer's

instructions and the manufactured Home Construction and Safety

Standard, Title 24 CFR, part 3280, or when such standard is not

applicable, the Standard for Manufactured Home Installations.

(Manufactured Home Sites, Communities and Set-Ups), ANSI A255.1

and/or CAN/CSA-Z240 MH Series M92 Canadian Standard for Mobile

Homes."



ANSI A 255.1 and/or CAN/CSA-Z240.6.2 MH Series, Mobile Homes



Ground National Electrical Code ANSI/NFPA 70 and/or CSA C22.1,

Part 1



Park Trailers ANSI 119.5

GENERAL FURNACE LOCATION AND INSTALLATIONS



All models can be installed in either a horizontal or vertical mounting

position Horizontal installs must have the gas line positioned on top,

vertical installs must have the vent located at floor level and gas line on

the right side.



Always install furnace exhaust system through an exterior wall.



DO NOT install furnace near tilt-out rooms, slide-outs, doors or other

projection that could obstruct furnace exhaust.



Locate furnace near midpoint of coach for single furnace applications.



Installation must provide accessibility if any repairs are necessary to

the furnace. Failure to meet this requirement will create additional labor

costs that will be the responsibility of the installer.



DO NOT install vent in areas where projection or door openings come

within 6" of vent opening.



DO NOT install furnace in an area where wires, pipes or other objects

will interfere with installation or operation of furnace.



DO NOT install furnace on material that restricts return air, such as

directly on carpet, or soft material (like vinyl). If you must install furnace

on carpet or soft material, install furnace on cleats, or on a wood or

metal panel extending the full width and depth of furnace plus

minimum clearance to combustibles.



DO NOT use petroleum or citrus type cleaner on plastic parts, as

damage may occur.



NOTE: The exhaust temperature of this furnace could discolor or warp

some materials. You should verify that the material used on the coach

door, panel, or cover will not discolor or warp from the exhaust

temperature whenever any door, panel, or cover is in the open

position.



CAUTION: Due to the differences in vinyl siding, materials this

appliance should not be installed without first consulting with the

manufacturer of the siding or cutting the siding away from the area

around the appliance vent.



A gas-fired furnace for installation in a residential garage must be

installed so the burner(s) and the ignition source are located not less

than 18 in (457mm) above the floor and the furnace must be located or

protected to avoid physical damage by vehicles.

FURNACE INSTALLATION



The furnace should always be installed level (front to back, side to

side) to prevent water intrusion into the interior.



Set aside venting and outer door parts for installing on the outside of

coach.



NOTE to assure sufficient return air to circulating blower maintain

specified clearances see Table 4.



Units can be installed with or without the interior grill. If grill is not used

a minimum of 35 sq. in. of free return must be provided.



If units are installed using the small outside vent system access to the

inside of the coach must be provided directly in front of the unit to

remove for service suggested opening size 12-1/2" wide by 8-3/8"

height.



Remove knockouts from furnace and install two duct adapters for side

discharge by inserting back flange over casing and inserting tab into

square notch, then twist adapter 90°.



Insert furnace into cabinet opening and secure with two screws

through casing legs to floor. Units are secured by door or vent systems

through the coach sidewall.



Attach flexible ducting over duct adapters and secure. All flex ducting

requires rating of 200°F.



Run ducting to locations keeping bends and excess ducting to a

minimum and secure to registers.



Connect wiring to furnace. See wiring connection section.



Connect gas line to top, side or rear of furnace. See gas connection

Figure 6.

Cut the required exterior wall opening for your venting system see

Figure 1.

Configure furnace for ducting option to be used refer to duct

configurations Table 2.

Install furnace into opening and attach ducting to adapters.

Make gas and electrical connections, to the units.

See door or vent installation below on how to complete the installation.

SIDEWALL CUTOUT

* Door system exterior wall thickness 0" to 2-1/2".

* Small vent system 0" to 2-1/2".

WALL CUTOUTS Table 5

Small Vent (exterior)

Standard Door (exterior)

Front Grill (interior cabinet)

Front Grill Trim Ring

(interior cabinet)

DO NOT oversize hole – over sizing can result in water leakage.

Zero clearance around air intake cutout for best sealing condition.

SMALL VENT INSTALLATION

3-1/2" Dia.

12-1/4"

7-1/4"

max

Max

11-0"

7-1/4"

max

12-1/2"

8-3/4"

max

Figure 1