The vent connector must be accessible for cleaning, inspection, and replacement.

Vent connectors cannot pass through any ceiling, floor, firewall, or fire partition.

It is recommended (but not mandatory) that a minimum 12 inches of vertical vent pipe be installed on the draft hood prior to any elbow in the vent system.

IMPORTANT: Existing vent systems must be inspected for obstructions, corrosion, and proper installation.

Chimney Connection

IMPORTANT: Before connecting a vent to a chimney, make sure the chimney passageway is clear and free of obstructions. The chimney must be cleaned if previously used for venting solid fuel appliances or fireplaces. Also consult local and state codes for proper chimney sizing and application or, in the absence of local and state codes, the "National Fuel Gas Code", ANSI Z223.1 (NFPA 54)-current edition.

The connector must be installed above the extreme bottom of the chimney to prevent potentially blocking the flue gases.

The connector must be firmly attached and sealed to prevent it from falling out.

To aid in removing the connector, a thimble or slip joint may be used.

The connector must not extend beyond the inner edge of the chimney as it may restrict the space between it and the opposite wall of the chimney (Figure 19).

LISTED LINED

CHIMNEY

 

2 FT. MINtMUM ABOVE ANY OBJECT

3 FT. MINIMUM

WITHIN 10FT. HORIZONTALLY

SUPPORT

MAINTAIN

CLEARANCE*

€_

DO

NOT EXTEND

f

BEYOND EDGE

OF

CHIMNEY

CONNECTOR

CHIMNEY TERMINATION VENT SYSTEM

FIGURE 19.

Do not terminate the vent connector in a chimney that has not been certified for this purpose. Some local codes may prohibit the termination of vent connectors in a masonry chimney.

Vertical Exhaust Gas Vent

Vertical exhaust gas vents must be installed with U.L. listed type B vent pipe according to the vent manufacturer's instructions and the terms of its listing.

It must be connected to the water heater's draft hood by a listed vent connector or by directly originating at the draft hood opening.

Vertical gas vents must terminate with a listed cap or other roof assembly and be installed according to their manufacturer's instructions.

Gas vents must be supported to prevent damage, joint

separation, and maintain clearances to combustible materials (Figures 20 and 21).

IMPORTANT: This gas vent must be terminated in a vertical position to facilitate the removal of the burnt gases.

An unused chimney flue or masonry enclosure may be used as a passageway for the installation of a gas vent (Figure 21 ).

Common (combined) venting is allowable with vertical type B vent systems and lined masonry chimneys as tong as proper draft for the water heater is established under all conditions of operation. CAUTION: DO NOT common vent this water heater with any power vented appliance.

Figures 19-21 are examples of vent pipe system installations and may or may not be typical for your specific application. Consult the "National Fuel Gas Code", NFPA 54, ANSI Z223.1- current edition and the guidelines set forth by prevailing local codes.

--

LISTED

VENT CAP

 

L!__

 

 

_'

FT. MINIMUM

ABOVE ANY OBJECT

3 FT. MINIMUM

WITHIN 10

FT.

HORIZONTALLY

SUPPORT

 

 

 

STRAP

 

 

 

*MAINTAIN

 

TYPE B DOUBLE

CLEARANCE

 

 

WALL VENT PIPE

±

 

 

 

 

t

_**MAtNTAIN

 

 

VENT

l

VERTICAL GAS VENT SYSTEM WITH

TYPE B DOUBLE WALL VENT PIPE.

FIGURE 20.

 

-.,w_LISTED

VENT

CAP

 

5 FT. MINIMUM

 

 

 

 

"MAINTAIN

 

T

SPECIFIED

 

 

CLEARANCE

SUPPORT

 

 

 

*MAINTAIN

 

 

 

CLEARANCE

 

 

 

3_

 

 

 

VENT

 

CONNECTOR

 

 

 

CONNECTOR

 

 

 

 

UNUSED

CHIMNEY

1/4 IN. PER FT.

-.,F--_FLUE

OR

MASONRY

 

 

 

MINIMUM

ENCLOSURE

 

VENTING THROUGH A CHIMNEY WITH

TYPE B DOUBLE WALL VENT PIPE.

FIGURE 21.

,Maintain vent pipe clearance requirements to local, state and/or the "National Fuel Gas Code",ANSI Z223.1(NFPA 54)-current edition.

**NFPA 211, Standard for Chimneys, Fireplaces, Vents, and Solid Fuel-Buming Appliances states that these chimneys are intended to be installed in accordance with the installation instructions provided with each chimney support assembly. Minimum air space clearance to combustible materials should be maintained as marked on the chimney sections.

19

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Kenmore 153.331492, 153.331592 owner manual Chimney Connection, Vertical Exhaust Gas Vent

153.331492, 153.331592 specifications

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