Bradford-White Corp Modulating Boiler Manual De Usuario

B

RADFORD

 W

HITE

 C

ORP.

Page 12

HORIZONTAL INTAKE AND EXHAUST PVC VENT TERMINAL KITS

2" PVC

3" PVC

4" PVC

6" PVC

SIZE

Standard

Concentric

Standard

Concentric

Standard

Standard

CA006000

CA005900 239-44069-01

80

included

optional

optional

optional

n/a

n/a

105

included

optional

optional

optional

n/a

n/a

150

n/a

n/a

included

optional

n/a

n/a

199 /210

n/a

n/a

included

optional

n/a

n/a

285

n/a

n/a

optional

optional

included

n/a

399

n/a

n/a

n/a

n/a

included

n/a

500

n/a

n/a

n/a

n/a

included

n/a

600

n/a

n/a

n/a

n/a

included

optional

750

n/a

n/a

n/a

n/a

n/a

included

850

n/a

n/a

n/a

n/a

n/a

included

Concentric vent terminal = 10 ft. pipe length.

Method 1: Two permanent openings, one

commencing within 12" (300mm) of the top and one
commencing within 12" (300mm) of the bottom, of the
enclosure shall be provided. The openings shall
communicate directly, or by ducts, with the outdoors or
spaces that freely communicate with the outdoors.
When directly communicating with the outdoors, or
when communicating to the outdoors through vertical
ducts, each opening shall have a minimum free area of 1
square inch per 4000 Btu/hr (550 square mm/kW) of
total input rating of all equipment in the enclosure.
When communicating to the outdoors through
horizontal ducts, each opening shall have a minimum
free area of not less than 1 square inch per 2000 Btu/hr
(1100 square mm/kW) of total input rating of all
equipment in the enclosure.

Method 2: One permanent opening, commencing

within 12" (300mm) of the top of the enclosure, shall be
permitted. The opening shall directly communicate with
the outdoors or shall communicate through a vertical or
horizontal duct to the outdoors or spaces that directly
communicate with the outdoors and shall have a
minimum free area of 1 square inch per 3000 Btu/hr
(734 square mm/kW) of the total input rating of all
equipment located in the enclosure. This opening must
not be less than the sum of the areas of all vent
connectors in the confined space.

Other methods of introducing combustion and

ventilation air are acceptable, providing they conform to
the requirements in the applicable codes listed above.

In Canada, consult local building and safety codes or,

in absence of such requirements, follow CAN/CGA B149.

3.1.2 Ducted Combustion Air
The combustion air can be taken through the wall, or

through the roof.  When taken from the wall, it must be
taken from out-of-doors by means of the horizontal wall
terminal, shown in 

Table(s) 3

. See 

Table 2

 to select the

appropriate diameter air pipe. When taken from the roof, a
field-supplied rain cap or an elbow arrangement must be
used to prevent entry of rain water (see 

Figure10

).

Use ABS, PVC, CPVC or galvanized pipe for the

Brute Elite boilers and water heaters must have

provisions for combustion and ventilation air in
accordance with the applicable requirements for
Combustion Air Supply and Ventilation in the National
Fuel Gas Code, ANSI Z223 1; or in Canada, the Natural
Gas and Propane Installation Code, CSA B149.1. All
applicable provisions of local building codes must also
be adhered to.

3.1.1 Combustion Air From Room
In the United States, the most common

requirements specify that the space shall communicate
with the outdoors in accordance with method 1 or 2,
which follow. Where ducts are used, they shall be of the
same cross-sectional area as the free area of the
openings to which they connect.

INSTALLATION STANDARDS

MATERIAL

UNITED STATES

CANADA

ABS

ANSI/ASTM D1527

PVC, sch 40

ANSI/ASTM D1785 or D2665

Air pipe material must be chosen

CPVC, sch 40

ANSI/ASTM F441

based upon the intended application of the boiler.

Single wall galv. steel

26 gauge

PRO TECH (FasNSeal)

HEAT FAB (Saf-T-Vent)

Z FLEX (Z-Vent)

SIZE

Boiler

Flue

Intake Air

Boiler

Intermediate

Flue

Intake Air

Boiler

Flue

Intake Air

Adapter

Termination

Termination

Adapter

Adapter

Termination Termination

Adapter

Termination

Termination

399-600

F303759

FSBS4

FSAIH04

KB285600

9454BUREZ-1*

9492

9414TERM

2SVSLA04

2SVSTP04

2SVSTEX0490

FSRC4(R.C)

303888

5400CI

2SVSRCX04

750-850

F303759

FSBS6

FSAIH04

(intake only)

303888