Bradford White BWCH Operations Instructions download pdf (Page 11)

Page 11

COPPER BRUTE II (500 - 2000)

appliances. If assistance is required in determining

how a blocked vent safety system should be connected

to a Bradford White product, please call Applications

Engineering at the Rochester phone number listed on

back cover of this manual.

Refer to the installation and operating

instructions on all appliances to be common vented

for instructions, warnings, restrictions and safety

requirements. If safe operation of all appliances

connected to a common vent cannot be assured,

including prevention of spillage of ue gasses into

living spaces, common venting should not be applied,

and appliances should each be vented separately.

2.2.4 Category III Vent

When the Copper Brute II is vented with

horizontal discharge, it must be installed per

this installation manual and the venting system

manufacturer’s installation instructions. The vent

system must be sealed stainless steel, per Table 5.

Route the vent pipe to the heater as directly as

possible. Seal all joints and provide adequate hangers

as required in the venting system manufacturer’s

Installation Instructions. Horizontal portions of the

venting system must be supported to prevent sagging

and may not have any low sections that could trap

condensate. The unit must not support the weight of

the vent pipe. Horizontal runs must slope downwards

not less than ¼ inch per foot (2 cm/m) from the unit to

the vent terminal. Reference Table 2 for the size of the

Category III vent system. Up to three elbows can be

used with 50 linear feet (15.2m) of pipe. Subtract 10

allowable linear feet (3.0m) for every additional elbow

used.

WARNING

The outdoor vent terminal gets hot. Unit must be

installed in such a way as to reduce the risk of

burns from contact with the vent terminal.

2.3 Locating Vent & Combustion Air

Terminals

2.3.1 Side Wall Vent Terminal

The appropriate Bradford White side wall vent

hood must be used, and is listed in the installation and

operation manual. The terminal provides a means of

installing the vent piping through the building wall,

and must be located in accordance with ANSI Z223.1/

NFPA 54 and applicable local codes. In Canada, the

installation must be in accordance with CSA B149.1 or

.2 and local applicable codes. Consider the following

when installing the terminal:

1. Figure 3 shows the requirements for mechanical

vent terminal clearances for the U.S. and Canada.

2. Vent terminals for condensing appliances or

appliances with condensing vents are not

permitted to terminate above a public walkway,

or over an area where condensate or vapor could

create a nuisance or hazard.

3. Locate the vent terminal so that vent gases cannot

be drawn into air conditioning system inlets.

4. Locate the vent terminal so that vent gases cannot

enter the building through doors, windows,

gravity inlets or other openings. Whenever

possible, locations under windows or near doors

should be avoided.

5. Locate the vent terminal so that it cannot be

blocked by snow. The installer may determine

that a vent terminal must be higher than the

minimum shown in codes, depending upon local

conditions.

6. Locate the terminal so the vent exhaust does

not settle on building surfaces or other nearby

objects. Vent products may damage such

surfaces or objects.

7. If the boiler or water heater uses ducted

combustion air from an intake terminal located

on the same wall, locate the vent terminal at least

3 feet (0.9m) horizontally from the combustion

air terminal, and locate the vent terminal at least

1 foot (0.3m) above the combustion air terminal.

2.3.2 Side Wall Combustion Air Terminal

The Bradford White side wall combustion air

terminal (listed in Table 2) must be used when the

unit takes its combustion air through a duct from a

side wall. Consider the following when installing the

terminal:

1. Do not locate the air inlet terminal near a source

of corrosive chemical fumes (e.g., cleaning uid,

chlorinated compounds, etc.)

2. Locate the terminal so that it will not be subject

to damage by accident or vandalism.

3. Locate the combustion air terminal so that it

cannot be blocked by snow. The National Fuel

Gas Code requires that it be at least 12 inches (30

cm) above grade, but the installer may determine

it should be higher, depending upon local

conditions.

4. If the Copper Brute II is side-wall vented to the

same wall, locate the vent terminal at least 3

feet (0.9m) horizontally from the combustion air

terminal, and locate the vent terminal at least 1

foot (0.3m) above the combustion air terminal

(see Figure 3).

TERM DESCRIPTION

Pipe Must comply with UL Standard 1738

such as Type 29-4C Stainless Steel

(either insulated or non-insulated).

Joint Follow vent manufacturer’s instructions

Sealing

Table 5. Required Horizontal Venting Material.

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 63 64

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Bradford White BWCH Operations Instructions Page 11

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