Reliant FVIR GAS WATER HEATER Technical Information PDF herunterladen (Seite 15)

BASIC INSTALLATION & OPERATION

Vent Connectors:

1. Type B, Double wall, U.L. Listed Vent Pipe.

2. Single wall Vent Pipe.

Maintain the manufacturer’s speciﬁ ed minimum

clearance from combustible materials when using type

B double wall vent pipe.

Vent connectors made of type B, double wall vent

pipe material may pass through walls or partitions

constructed of combustible material if the minimum

listed clearance is maintained.

Maintain a one inch minimum clearance from all

combustible materials when using single wall vent pipe.

IMPORTANT: Single wall vent pipe cannot be used

for water heaters located in attics and may not pass

through attic spaces, crawl spaces or any conﬁ ned

or inaccessible location. A single wall metal vent

connector cannot pass through any interior wall.

When installing a vent connector, please note the

following

• Install the vent connector avoiding unnecessary

bends, which create resistance to the flow of vent

gases.

• Install without dips or sags with an upward slope of

at least 1/4-inch per foot.

• Joints must be fastened by sheet metal screws

or other approved means. It must be supported

to maintain clearances and prevent separation of

joints and damage.

• The length of the vent connector cannot exceed

75% of the vertical vent height.

• The vent connector must be accessible for clean-

ing, 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 gas 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.

Figure 11

Figure 12

Vent Pipe System: This water heater must be

properly vented for the removal of exhaust gases to

the outside atmosphere. Correct installation of the vent

pipe system is mandatory for the proper and efﬁ cient

operation of this water heater and is an important

factor in the life of the unit.

The vent pipe must be installed according to all

local and state codes or, in the absence of local and

state codes, the “National Fuel Gas Code”, ANSI

Z223.1(NFPA 54)-current edition. The vent pipe

installation must not be obstructed so as to prevent the

removal of exhaust gases to the outside atmosphere.

U.L. recognized fuel gas and carbon monoxide

(CO) detectors are recommended in all applications

and should be installed using the manufacturer’s

instructions and local codes, rules, or regulations.

Vent Pipe Size: It is important that you follow the

guidelines in these instructions for sizing a vent pipe

system. If a transition to a larger vent size is required,

the vent transition connection must be made at the

draft hood outlet. DO NOT reduce the vent size to less

than the draft hood outlet diameter.

1 SQ. INCH PER

2000 BTUH

100 SQ. INCH

MINIMUM (EACH)

CONFINED

SPACE

1 SQ. INCH PER

2000 BTUH 100 SQ. INCH

MINIMUM (EACH)

INLET

OUTLET

OUTDOOR

AIR DUCTS

ALL AIR FROM OUTDOORS USING HORIZONTAL DUCTS

ALTERNATIVE

OPENING

LOCATION

1 SQ. INCH

PER 3000 BTUH

100 SQ. INCH

MINIMUM (EACH)

CONFINED

SPACE

ALL AIR FROM OUTDOORS - USING A SINGLE PERMANENT OPENING

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