Goodman Mfg VC8 User Manual download pdf (Page 8)

OCATION

EQUIREMENTS

AND

ONSIDERATIONS

Top - 1"

Side

Clearance - 1"

Back - 0"

Front Clearance - 3"

ent Pipe Clearance to Combustibles-

6" using Single Wall Connector or 1"

using B-1 vent.

• Adequate combustion/ventilation air must be supplied

to the closet.

• Furnace must be completely sealed to floor or base.

Combustion/ ventilation air supply pipes must

terminate 12" from top of closet and 12" from floor of

closet. DO NOT remove solid base plate for side

return.

• Return air ducts must be completely sealed to the

furnace and terminate outside the enclosure surfaces.

CLEARANCES AND A CCESSIBILITY

Unobstructed front clearance of 24" for servicing is recom-

mended.

TOP

B1-VENT SINGLE

(PLENUM)

1" 6" 1" 3" 0" 1"

VENT

SIDES FRONT BACK

Top clearance for horizontal configuration - 1"

HORIZONTAL I NSTALLATION (*MVC8 MODELS O NLY)

Line contact to framing is permitted when installed in the hori-

zontal configuration. Line contact is defined as the portion of

the cabinet that is formed by the intersection of the top and

side. ACCESSIBILITY CLEARANCE, WHERE GREATER,

SHOULD TAKE PRECEDENCE OVER MINIMUM FIRE PRO-

TECTION CLEARANCE. A gas-fired furnace for installation in

a residential garage must be installed so that the ignition source

and burners are located not less than eighteen inches (18")

above the floor and is protected or located to prevent physical

damage by vehicles. A gas furnace must not be installed di-

rectly on carpeting, tile, or other combustible materials other

than wood flooring.

FURNACE S USPENSION

If suspending the furnace from rafters or joist, use 3/8" threaded

rod and 2”x2”x3/8” angle iron as shown below. The length of

rod will depend on the application and the clearances neces-

sary.

hydrochloric acid

cements and glues

antistatic fabric softeners for clothes dryers

and masonry acid washing materials

• If the furnace is used in connection with a cooling unit,

install the furnace upstream or in parallel with the

cooling unit coil. Premature heat exchanger failure

will result if the cooling unit coil is placed ahead of the

furnace.

• If the furnace is installed in a residential garage,

position the furnace so that the burners and ignition

source are located not less than 18 inches (457 mm)

above the floor. Protect the furnace from physical

damage by vehicles.

• If the furnace is installed horizontally, the furnace

access doors must be vertical so that the burners fire

horizontally into the heat exchanger. Do not install

the unit with the access doors on the “up/top” or “down/

bottom” side of the furnace.

• Do not connect this furnace to a chimney flue that

serves a separate appliance designed to burn solid

fuel.

• For counterflow installations, the air conditioning coil

must be downstream from the heat exchanger of the

furnace.

• Counterflow installation over a noncombustible floor.

Before setting the furnace over the plenum opening,

ensure the surface around the opening is smooth and

level. A tight seal should be made between the furnace

base and floor by using a silicon rubber caulking

compound or cement grout.

• Counterflow installation over a combustible floor. If

installation over a combustible floor becomes

necessary, use an accessory subbase (see

Specification Sheet applicable to your model for details).

A special accessory subbase must be used for upright

counterflow unit installations over any combustible

material including wood. Follow the instructions with

the subbase for proper installations. Do not install the

furnace directly on carpeting, tile, or other combustible

material other than wood flooring. (NOTE: The subbase

will not be required if an air conditioning coil is installed

between the supply air opening on the furnace and the

floor.

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Goodman Mfg VC8 User Manual Page 8

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