Munchkin Gas-Fired Hot Water Boiler Installation Manual download pdf (Page 9)

GAS-FIRED HEATER Installation Manual

PART 3: PREPARE MUNCHKIN CONTENDER LOCATION

(CONTINUED)

the building and properly terminated. The air

intake and exhaust vent piping lengths, routing

and termination method must all comply with the

methods and limits given in the Venting section.

F. PREVENT COMBUSTION AIR CONTAMINATION

Install intake air piping for the Munchkin

Contender as described in the Venting section.

Do not terminate exhaust in locations that can

allow contamination of intake air.

WARNING

The space must be provided with combus-

tion/ventilation air openings correctly sized for

all other appliances located in the same space as

the Munchkin Contender heater. The heater

cover must be securely fastened to the heater to

prevent heater from drawing air from inside the

boiler room. This is particularly important if the

heater is located in the same room as other ap-

pliances. Failure to comply with the above warn-

ings could result in severe personal injury, death

or substantial property damage.

D. RESIDENTIAL GARAGE INSTALLATION

Precautions

Take the following special precautions when

installing the Munchkin Contender in a residen-

tial garage. If the heater is located in a residen-

tial garage, per ANSI Z223.1, paragraph 5.1.9:

• Mount the heater with a minimum of 18

inches above the floor of the garage to the

bottom of the heater to ensure the burner

and ignition devices will be no less than 18

inches above the floor.

• Locate or protect the heater so it cannot be

damaged by a moving vehicle.

E. EXHAUST VENT AND INTAKE AIR VENT

The Munchkin Contender requires a special vent

system, designed for pressurized venting.

Munchkin Contenders are rated ANSI Z21.10.3

Category IV (pressurized vent, likely to con-

dense in the vent).

You must also install air intake piping from outside

to the heater flue adaptor. The resultant installa-

tion is categorized as direct vent (sealed combus-

tion). Note: To prevent combustion air con-

tamination see Table 3-2 in this section

when considering exhaust vent and intake

air vent termination.

Intake and exhaust must terminate near each

other and may be vented vertically through the

roof or out a side wall. The intake and exhuast

venting methods are detailed in the Venting

Section. Do not attempt to install the Munchkin

Contender Heater using any other means. Be

sure to locate the heater such that the air intake

and exhaust vent piping can be routed through

WARNING

You must pipe outside air to the heater air

intake. Ensure that the intake air will not

contain any of the contaminants below.

Contaminated air will damage the heater,

resulting in possible severe personal injury,

death or substantial property damage. For

example, do not pipe intake air vent near a

swimming pool. Also avoid areas subject to

exhaust fumes from laundry facilities. These

areas will always contain contaminants.

Products to avoid

Spray cans containing 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

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

Remodeling areas

Garages and workshops

Table 3-2: Corrosive contaminants and sources

1 2 3 4 5 6 7 8 9 10 11 12 13 14 ... 67 68

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Munchkin Gas-Fired Hot Water Boiler Installation Manual Page 9

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