Westinghouse WBRCNG140F Installation Manual download pdf (Page 17)

WHL-015 REV. 12.17.14

F. EXHAUST VENT AND INTAKE PIPE

Vents must be properly supported. The appliance exhaust and intake connections are not designed to carry heavy weight. Vent support

brackets must be within 1’ of the appliance and the balance at 4’ intervals. Venting must be readily accessible for visual inspection for

the first 3’ from the appliance.

The appliance is rated ANSI Z21.13 Category IV (pressurized vent, likely to form condensate in the vent), and requires a special vent

system designed for pressurized venting.

You must also install air intake piping from outdoors to the appliance flue adaptor. The resultant installation is categorized as direct vent

(sealed combustion).

NOTE: To prevent combustion air contamination, see Table 7 in this section when considering exhaust vent and intake pipe

termination.

Exhaust vent and intake pipe may be vented vertically through the roof or out a side wall. Venting methods are detailed in the Venting

Section. Do not attempt installation using any other means. Be sure to locate the appliance so exhaust vent and intake piping can be

routed through the building and properly terminated. Exhaust vent and intake piping lengths, routing, and termination method must

comply with methods and limits given in the venting section.

G. PREVENT COMBUSTION AIR CONTAMINATION

Install intake piping for the appliance as described in the Venting section. Do not terminate exhaust in locations that can allow

contamination of intake air.

Ensure that the intake air will not contain any of the contaminants below. For example, do not pipe intake near a swimming pool. Avoid

areas subject to exhaust fumes from laundry facilities. These areas always contain contaminants. Contaminated air will damage the

appliance, resulting in possible substantial property damage, severe personal injury, or death.

PRODUCTS TO AVOID

AREAS LIKELY TO HAVE CONTAMINANTS

Spray cans containing fluorocarbons

Dry cleaning/laundry areas and establishments

Permanent wave solutions

Swimming pools

Chlorinated waxes/cleaners

Metal fabrication plants

Chlorine-based swimming pool chemicals

Beauty shops

Calcium chloride used for thawing

Refrigeration repair shops

Sodium chloride used for water softening

Photo processing plants

Refrigerant leaks

Auto body shops

Paint or varnish removers

Plastic manufacturing plants

Hydrochloric or Muriatic acid

Furniture refinishing areas and establishments

Cements and glues

New building construction

Antistatic fabric softeners used in clothes dryers

Remodeling areas

Chlorine-type bleaches, laundry detergents, and cleaning solvents

Garages and workshops

Adhesives used to fasten building products

Table 7

NOTE: DAMAGE TO THE APPLIANCE CAUSED BY EXPOSURE TO CORROSIVE VAPORS IS NOT COVERED BY WARRANTY.

(Refer to the limited warranty for complete terms and conditions).

H. REMOVING A APPLIANCE FROM A COMMON VENT SYSTEM

Do not install the appliance into a common vent with any other appliance. This will cause flue gas spillage or appliance malfunction,

resulting in possible substantial property damage, severe personal injury, or death.

Failure to follow all instructions can result in flue gas spillage and carbon monoxide emissions, causing severe personal injury or death.

When removing an existing appliance, the following steps must be followed.

1. Seal any unused openings in the common venting system.

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Westinghouse WBRCNG140F Installation Manual Page 17

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