Amana GUC Series Bedienerhandbuch PDF herunterladen (Seite 10)

HORIZONTAL VENT/INTAKE TERMINATIONS

12" Min.

Vent

24" Max.

3" Min.

12" Min.

Screen

24" Max.

Air

Intake

90°

Medium

Radius

Elbow

Figure 6

Horizontal Vent Termination

Position the combustion air intake terminal away from

obstructions, above anticipated snow accumulations, and

at least 12 inches above grade, as shown in Figure 6.

The exhaust vent must penetrate the wall within the

shaded region as shown in Figure 6.

All exhaust vent and air intake terminal fittings must be

medium radius (1/4 bend DWV) 90 degree elbows.

To prevent unnecessary shutdown of furnace due to

pressure switch trips, always determine anticipated snow

accumulation level, and install the terminals accordingly to

prevent exhaust vent and air intake blockages.

If installation above snow accumulation is required, add

additional elbows as shown in Figure 7. A 12 inch minimum

clearance between the air intake and the highest antici-

pated snow level must be maintained. The exhaust vent

must penetrate the wall within the shaded region as shown

in Figure 7.

Air Intake

Screen

90°

Medium Radius

Elbow

Vent

12" Min.

24" Max.

12" Min.

24" Max.

3" Min.

12" Min. Above

Highetst Anticipated

Snow Level

Figure 7

Horizontal Vent Termination Above

Anticipated Snow Level

thick closed cell foam insulation such as Armaflex or

Insultube.

LOCATION OF EXHAUST AND INTAKE

TERMINATIONS

This furnace can be installed with either a vertical or

horizontal direct vent. In either case, the exhaust vent and

the combustion air intake pipe must be located on the

same side of the structure and separated by no less than

3 inches and no more than 24 inches.

This ensures enough distance to prevent flue gas recircu-

lation and limits the distance to ensure the vent outlet and

air inlet terminals are in the same atmospheric pressure

zone.

The following points must also be considered when install-

ing the vent pipe in either a horizontal or vertical applica-

tion:

1. The vent termination must be at least 3 feet above any

forced air inlet located within 10 feet.

Exception: This provision shall not apply to the com-

bustion air intake of a direct vent furnace.

2. The vent termination must be at least 12 inches from

any door, window, or gravity air inlet into any building.

3. The vent must terminate at least 2 feet above ground

level or roof level. If heavy snow accumulation is

expected, this distance will need to be increased.

4. The vent shall not terminate over public walkways or

over an area where condensate or vapor could create

a nuisance or hazard or could be detrimental to the

operation of regulators, relief valves, or other equip-

ment.

5. In addition, the combustion air intake should not be

terminated in areas that are frequently very dusty or

dirty.

CAUTION

Do not terminate the combustion air intake

where the air is often heavily contaminated

with compounds containing chlorine or

fluorine. Common residential sources of

such compounds include:

• Swimming pools and swimming pool

pumps/filter

• Clothes dryer vents

• Remote air conditioning or heat pump

units (A refrigerant leak would

contaminate the combustion air.)

• Plumbing vent stacks

• Bathroom or swimming pool exhaust fans

• Undried paint strippers, adhesives,

paints, varnishes, sealers, waxes, and

solvents. These are often used during

new construction or remodeling.

Various commercial and industrial

processes may also be sources of chlorine/

fluorine compounds.

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