B Venting; Category I Vent - Bradford White Copper Brute II Installation And Operation Instructions Manual

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it must be taken from out-of-doors by means of the
Bradford White horizontal wall terminal (see Table 1)
When taken from the roof, a eld-supplied rain cap or
an elbow arrangement must be used to prevent entry of
rain water (see igure )
se single-wall galvanized pipe, per Table , for
the combustion air intake (see Table 1) for appropriate
size oute the intake to the heater as directly as
possible eal all oints with tape
hangers The unit must not support the weight of
the combustion air intake pipe Ma imum linear
pipelength allowed is
have been calculated into the
run ubtract 1 allowable linear feet (
additional elbow used (see Table 1) When fewer than
elbows are used, the ma imum linear pipe length
allowed is still feet (1
The connection for the intake air pipe is on the
lter bo The Copper Brute ll appliances may have
venting and combustion air ducting attached to the top
or the back They are shipped with the connections
at the top or attaching either or both pipes to the
back, the mounting anges are reversible by removing
the mounting screws and orienting the anges in the
desired position eplace the screws after positioning
anges un a bead of silicone around the collar and
slide the pipe over the collar ecure with sheet metal
screws
Figure 4.
rovide adequate
feet (1 m) Three elbows
-foot (1 m) linear
m) for every
m)
In addition to air needed for combustion, air
shall also be supplied for ventilation, including all air
required for comfort and proper working conditions
for personnel The Copper Brute ll loses less than 1
percent of its input rating to the room, but other heat
sources may be present

2.B Venting

2.B.1 Vent Categories
epending upon desired Copper Brute ll venting,
it may be considered a Category I or a Category III
appliance In general, a vertical vent system will
be a Category I system However, in rare instances,
a Copper Brute ll's vertical vent system may be
considered Category III In the
as Code (A I 1- atest dition), or in Canada
the C A B1 1 (latest edition), de nes a Category
I vent system, and includes rules and tables to size
these vent systems If the Copper Brute ll's vertical
vent system does not satisfy the criteria for Category I
venting, it must be vented as a Category III system
All Copper Brute ll vent systems which discharge
horizontally (without the use of a power venter) are
considered Category III vent systems
2.B.2 Category I Vent
When vented as a category I appliance, the
vent system must conform to the ational uel as
Code (A I 1- atest dition) in the
in Canada, to C A B1
system must be sized and installed for a Category I
an-Assisted Appliance
If chimney height is greater than
if multiple units are vented into the same vertical
vent, a barometric damper must be installed on each
appliance, such that the ue draft does not e ceed
(negative) 1 w c
If using a power venter for any type of Category
I venting, the draft should be set between (negative)
1 and 1 w c
B W C
RADFORD HITE
, the ational uel
, or
1 (latest edition) The vent
feet, or
ORP.