Williams 4505621 Instruction Manual download pdf (Page 6)

Locating Floor Furnace

Consider the following points before attempting to install the

furnace:

1. To achieve the best results from this furnace, it must be

located in an area that will provide good circulation of air

to adjacent areas that need to be heated.

2. Warm air will rise from the furnace and travel to other areas

only through open doorways, and that air must return to

the furnace to be reheated.

3. In small homes, one unit centrally located may be sufficient

to meet the heating requirements, but it is impractical to

attempt to use this furnace where heat must travel through

more than one doorway before reaching an area where

heat is desired. A typical installation of a single unit in a

small home is shown by Figure 2.

4. In larger homes, it may be necessary to use two or more

units to provide sufficient heat distribution. It is often better

to use two small furnaces rather than one large one.

5. If there isa difference in the floor level between two rooms

to be heated, the furnace should be located in a room with

the lower floor.

FLOOR

FURNA(

LIVING ROOM

AIR -

BEDROOM

DINING ROOM H

KITCHEN

I i I

6. The flow of heat to various areas within the home can be

effectively regulated by the opening and closing of doors.

CLEARANCES

1. Minimum clearance between the floor furnace and

adjacent walls - 6".

2. Minimum clearance between furnace and doors,

draperies or other combustible materials within the

home - 12".

3. Minimum space required along two sidesof the furnace

to allow persons to walk around the furnace - 15".

The thermostat should be located on an interior wall far

enough away from the furnace to prevent it from being heated

directly by the furnace. Select a location in the area most

frequently used or best situated to control the temperature of

the entire house. Avoid locations where the thermostat might

be subjected to drafts from windows, doors, stairways, etc.,

or from other devices such as cooking ranges, fireplaces,

television, etc. Place the thermostat about five (5) feet above

the floor. Do not select a location that will require more than

25 feet of wire between the furnace and the thermostat. Do

not install the thermostat in an area which can be isolated

from the furnace by a door.

FIGURE 2

LOCATION NOTE

Replacement floor furnaces of the same or lesser

Btu/h input rating may be installed in the same location

as the replaced furnace when such replacement does

not create an unsafe condition.

After you have selected a location that will provide the

necessary clearances and air circulation, check beneath the

house to be sure the clearances between the furnace and

the ground, as specified by Figure 1, can be obtained. It is

permissable to dig a shallow pit, as shown in Figure1, but a

pipe or trench should be provided to drain away any water

that may seep into the pit. If the depth of the pitmust exceed

12", or if water seepage is likely,a watertight pit of galvanized

steel, copper, concrete or other suitable material should be

constructed and anchored intoplaceto prevent itfrom floating.

The sides of this pan should extend four inches above the

ground. The clearances between the upper rim of the pan

and the furnace should be no less than those specified in

Figure 1.

The width, length and depth of each furnace model is shown

in Figure 6.

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Williams 4505621 Instruction Manual Page 6

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