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. I(NFPA 54)-current edition.

The connector

must

be installed above the extreme

bottom

 

of the chimney

to

prevent potentially blocking

the flue

 

gases.

 

 

 

(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. IMPORTANT: 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.

2 FT. MINIMUM ABOVE ANY OBJECT

3 FT. MINtMU!WITHIN 10 FT. HORIZONTALLY

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

SUPPORT

*MAINTAIN

CLEARANCE

t

TYPE B DOUBLE

WALLVENTPIPE

the chimney as it may restrict the space between it and the

opposite wall of the chimney (Figure 19).

LISTED LINED

CHIMNEY

2 FT. MINIMUM ABOVE ANY OBJECT

WITHIN 10FT. HORIZONTALLY

3FT-MINIMUM I

SUPPORT

STRAP

MAINTAIN

CLEARANCE*

DO NOT EXTEND

t

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

**MAINTAIN

CLEARANCE

VERTICAL GAS VENT SYSTEM WITH

TYPE B DOUBLE WALL VENT PIPE.

FIGURE 20.

 

 

 

±

-i_LISTED

VENT CAP

 

 

 

 

MAINTAIN

MANUFACTURER'S

 

 

 

 

SPECIFIED

MINIMUM CLEARANCE

T

 

 

_MAINTAIN

 

 

 

 

 

 

 

 

 

SPECIFIED

 

 

 

 

 

CLEARANCE

 

SUPPORT

 

 

 

 

 

STRAP

 

 

 

 

*MAINTAIN

 

 

 

 

CLEARANCE

 

 

 

 

 

 

t

 

 

 

 

 

VENT

 

 

 

CONNECTOR

CONNECTOR

 

 

UNUSED

CHIMNEY

SLOPE

 

 

 

 

 

 

 

I_IN.

PBR

FT.

 

_,--'-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 ins_uctions provided with each chimney support assembly. Minimum air space clearance to

combustible materials should be maintained as marked on the chimney sections.

2O

Page 20
Image 20
Kenmore 153.33115 manual Chimney Connection, Vertical Exhaust Gas Vent, Chimney as it may restrict the space between it

153.33114, 153.33115 specifications

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