Weil-McLain GV90+ User Manual download pdf (Page 4)

Part number 550-142-055/0411

GV90+ gas-fired water boiler — User’s Information Manual

Air contamination

Common household and hobby products often contain

ﬂuorine or chlorine compounds. When these chemicals

pass through the boiler, they can form strong acids in

the vent system or boiler. The acid can eat through

the vent or boiler wall, causing serious damage and

presenting a possible threat of ﬂue gas spillage into

the building.

Please read the information below. If the contaminating

chemicals will be present, have your installer pipe the

boiler air from outside per the Boiler manual.

If the boiler is installed in any area

likely to cause contamination

, or if

products which would contaminate the

air cannot be removed, you must

pipe

combustion air to the boiler

air in-

take. Contaminated combustion air will

damage the boiler and vent system, re-

sulting in possible severe personal injury,

death or substantial property damage.

Do not operate a GV90+ boiler in

a laundry room or pool facility

, for

example, without using ducted outside

air. These areas will always contain con-

taminants.

Prevent combustion air contamination —

Combustion air contamination:

Ensure that the combustion air will not contain any of

the contaminants in Figure 1

Combustion air supply openings or intake terminations

must NOT be near a swimming pool, for example.

Avoid areas subject to exhaust fumes from laundry facilities.

These areas will always contain contaminants.

Figure 1

Corrosive contaminants and sources

Products to avoid

Spray cans containing chloro/ﬂuorocarbons

Permanent wave solutions

Chlorinated waxes/cleaners

Chlorine-based swimming pool chemicals

Calcium chloride used for thawing

Sodium chloride used for water softening

Refrigerant leaks

Paint or varnish removers

Hydrochloric acid/muriatic acid

Cements and glues

Antistatic fabric softeners used in clothes dryers

Chlorine-type bleaches, detergents, and cleaning solvents found in

household laundry rooms

Adhesives used to fasten building products and other similar products

Excessive dust and dirt

Areas likely to have contaminants

Dry cleaning/laundry areas and establishments

Swimming pools

Metal fabrication plants

Beauty shops

Refrigeration repair shops

Photo processing plants

Auto body shops

Plastic manufacturing plants

Furniture reﬁnishing areas and establishments

New building construction

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Weil-McLain GV90+ User Manual Page 4

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