Model “l” fdvs-4 7-1/4 – Slant/Fin EC-10DV Series Venting User Manual

Page 4

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4

EC10DV SERIES

INSTALLATION OF FDVS DIRECT VENT SYSTEM
Installation of the Vent Termination

1. Remove vent system components from box and inspect for

damage. If the carton has been crushed or mutilated, check

components very carefully for damage. DO NOT install if

any damage is apparent.

2. Remove the combustion air tee assembly from the vent

termination. Set the tee aside for later use.

3. The location of the vent termination must be installed

according to all local codes that are applicable. In the USA

according to the latest version of the National Fire

Protection Association NFPA-31,National Fuel Gas Code

ANSI Z223.1. Where requirements for venting standards

differ the most stringent standard shall apply. In Canada

according to the latest version of CSA B140 and the

CSA B139 Installation Code. Refer to the following

requirements or See Diagram A for typical locations.

a.

The exit termination of mechanical draft systems shall

not be less than 7' above grade when located adjacent

to public walkways.

b.

A venting system shall terminate at least 3' above any

forced air inlet located within 10'.

c.

The venting system of other than a direct vent appliance

shall terminate at least 4' below, 4' horizontally from, or

1' above any door, window or gravity air inlet into the

building.

d.

The vent termination of a direct vent appliance with an

input of 50,000 BTU's per hour or less, shall be located

at least 9" from any opening through which vented

gases could enter the building. With input over 50,000

BTU's per hour, a 12" termination clearance shall be

required.

e.

The vent termination point shall not be installed closer

than 3' from an inside corner of an L-shaped structure.

f.

The vent termination should not be mounted directly

above, or within 3' horizontally from an oil tank vent or

gas meter.

g.

The bottom of the vent terminal shall be located at least

12" above finished grade or expected snow line, which

ever is greater.

4. After determining the location of the venting system

termination (See Diagram A), cut a hole in the wall sized

according to “L” dimension in Table 1. (See Figure 1)

5. Seal the back side of the base plate around the outer pipe

of the vent termination with a bead of high temperature sili

cone sealant. (See Figure 2) Mount the vent termination

through the wall, keeping the outer pipe centered in the

hole. (See Figure 1) Fasten the vent termination to the out

side wall with appropriate fasteners. Seal the edges

of the vent termination base plate to the wall with a high-

temperature silicone sealant.

6. Mount the backing plate over the outer pipe. Fasten the

backing plate to the inside wall with appropriate fasteners.

(See Figure 2) DO NOT BLOCK the intake or exhaust

openings, or the intake access panel on the vent

termination body. Wood or vinyl siding should be cut so that

the unit mounts directly on the wallboard to provide a stable

support. If the siding is greater than 1/2" thick use a spacer

plate or board behind the vent termination mounting plate.

(See Figure 2)

(a)

(b)

(c)

(e)

(g)

(c)

(c)

Model

“L”

FDVS-4

7-1/4"

Figure 1. End View

Table 1.

Figure 2. Side View

Diagram A

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