Kenmore 334, 530 owner manual Allair from Inside Buildings

Donotapplyinsulationtothetopofthewaterheater,asthis commencewithin12inches(30cm)of thetopandone

willinterferewithsafeoperationofthedrafthood. commencingwithin12inches(30cm)of thebottomofthe enclosures.

Donotcovertheouterdoor,thermostatortemperature&

pressurereliefvalve.

Donotallowinsulationtocomewithin2"(50.8mm)ofthe

floortopreventblockageofcombustionairflowtotheburner.

DonotcovertheinstructionmanualKeepitonthesideof.

thewaterheaterornearbyforfuturereference.

DoobtainnewwarningandinstructionlabelsfromSearsfor placementontheblanketdirectlyovertheexistinglabels.

Doinspecttheinsulationblanketfrequentlytomakecertain itdoesnotsag,therebyobstructingcombustionairflow.

CHIIVINEY OR GAS VENT

Combustion Air and Ventilation for

Appliances Located in Unconfined Spaces

UNCONFINED SPACE is space whose volume is not less than 50 cubic feet per 1,000 Btu per hour (4.8 m 3 per kW) of the aggregate input rating of all appliances installed in that space.

Rooms communicating directly with the space in which the

appliances are installed, through openings not furnished with doors, are considered a part of the unconfined space.

In unconfined spaces in buildings, infiltration may be adequate

to provide air for combustion, ventilation and dilution of flue

gases. However, in buildings of tight construction (for example, weather stripping, heavily insulated, caulked, vapor barrier, etc.),

additional air may need to be provided using the methods

described in Combustion Air and Ventilation for Appliances Located in Confined Spaces.

Combustion Air and Ventilation for

Appliances Located in Confined Spaces

CONFINED SPACE is a space whose volume is less than 50 cubic feet per 1,000 Btu per hour (4.8 m 3 per kW) of the aggregate input rating of all appliances installed in that space.

A. ALLAIR FROM INSIDE BUILDINGS:

(See Figure 9 on page 9 and Figure 10 below)

The confined space shall be provided with two permanent

openings communicating directly with an additional room(s) of sufficient volume so that the combined volume of all spaces meets the criteria for an unconfined space. The total input of

all gas utilization equipment installed in the combined space

shall be considered in making this determination. Each opening shall have a minimum free area of one square inch per 1,000 Btu per hour (22 cm2/kW) of the total input rating of

all gas utilization equipment in the confined space, but not less than 100 square inches (645 cm2). One opening shall

FIGURE 10.

B. ALL AiR FROM OUTDOORS: (See Figures 9, 11,12 and 13)

The confined space shall be provided with two permanent

openings, one commencing within 12 inches (30 cm) of the top

and one commencing within 12 inches (30 cm) from the bottom

of the enclosure. The openings shall communicate directly, or by ducts, with the outdoors or spaces (crawl or attic) that freely

communicate with the outdoors.

CHIMNEY OR
GAS VENT	VENTiLATiON LOUVERS

OUTLET AiR

, WATER HEATER

FURNACE

• iNLET AiR DUCT

ALT. INLETAIR VENTiLATiON LOUVERS

FIGURE 11.

When directly communicating with the outdoors, each opening shall have a minimum free area of 1 square inch per 4,000 Btu per hour (5.5 cm2/kW) of total input rating of all equipment in the enclosure. See Figure 12.

When communicating with the outdoors through vertical ducts, each opening shall have a minimum free area of 1 square inch per 4,000 BTU per hour (5.5 cm2/kW) of total

input rating of all equipment in the enclosure. See Figure 12.

11