Bradford White Installation And Operation Instructions Manual
Specifications and Main Features
Frequently Asked Questions
User Manual
Installation and Operation Instructions Document 1258C
Brute Elite
Installation and Operation
Instructions for
Modulating Boiler
Model BNTH
Sizes 080–850 MBTU/h
Water Heater
Model BNTV
Sizes 150–850 MBTU/h
FOR YOUR SAFETY: This product must be installed and serviced by a professional service technician,
qualied in hot water boiler and heater installation and maintenance. Improper installation and/or operation
could create carbon monoxide gas in ue gases which could cause serious injury, property damage, or
death. Improper installation and/or operation will void the warranty.
WARNING
If the information in this manual is not
followed exactly, a re or explosion may
result causing property damage, personal
injury or loss of life.
Do not store or use gasoline or other
ammable vapors and liquids in the vicinity
of this or any other appliance.
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do not
use any phone in your building.
• Immediately call your gas supplier from a
nearby phone. Follow the gas supplier’s
instructions.
• If you cannot reach your gas supplier, call
the re department.
Installation and service must be performed
by a qualied installer, service agency, or gas
supplier.
Assurez-vous de bien suivres les instructions
données dans cette notice pour réduire au
minimum le risque d’incendie ou d’explosion
ou pour éviter tout dommage matériel, toute
blessure ou la mort.
Ne pas entreposer ni utiliser d’essence ni
d’autres vapeurs ou liquides inammables dans
le voisinage de cet appareil ou de tout autre
appareil.
QUE FAIRE SI VOUS SENTEZ UNE ODEUR DE GAZ:
• Ne pas tenter d’allumer d’appareils.
• Ne touchez à aucun interrupteur. Ne pas vous
servir des téléphones dansle bâtiment où vous
vous trouvez.
• Appelez immédiatement votre fournisseur de
gaz depuis un voisin. Suivez les instructions
du fournisseur.
• Si vous ne pouvez rejoindre le fournisseur de
gaz, appelez le sservice des incendies.
L’installation et l’entretien doivent être assurés par
un installateur ou un service d’entretien qualié ou
par le fournisseur de gaz.
Brute Elite units must be installed in accordance
with the procedures detailed in this manual, or the
Bradford White Corp. warranty will be voided. The
installation must conform to the requirements of
the local jurisdiction having authority, and, in the
United States, to the latest edition of the National
Fuel Gas Code, ANSI Z223.1/NFPA54. In Canada,
the installation must conform to the latest edition
of CSA B149.1 Natural Gas and Propane Gas
Installation Code, and/or local codes. Where required
by the authority having jurisdiction, the installation
of Brute Elite boilers must conform to the Standard
for Controls and Safety Devices for Automatically
Fired Boilers, ANSI/ASME CSD-1. Any modications
to the boiler, its gas controls, or wiring may void the
warranty. If eld conditions require modications,
consult the factory representative before initiating
such modications.
1.1 Introduction
This manual provides information necessary for the
installation, operation, and maintenance of the Bradford White
Brute Elite. Read it carefully before starting the installation.
All application and installation procedures should be reviewed
completely before proceeding with the installation. Consult
the Bradford White factory, or local factory representative,
with any problems or questions regarding this equipment.
Experience has shown that most operating problems are
caused by improper installation.
The Brute Elite is protected against over pressurization. A
pressure relief valve is included with each Brute Elite. Some
Brute Elites may require that the PRV be installed prior to
lling the system. Refer to Figures 1-7 for PRV locations.
DANGER
The inlet gas pressure to the appliance must not
exceed 13” W.C. (3.2kPa).
All installations must be made in accordance with 1)
American National Standard Z223.1/NFPA54-Latest Edition
“National Fuel Gas Code” or 2) CSA B149.1 “Natural Gas
and Propane Installation Code” and with the requirement of
the local utility or other authorities having jurisdiction. Such
applicable requirements take precedence over the general
instructions contained herein.
All electrical wiring is to be done in accordance with the local
codes, or in the absence of local codes, with: 1) The National
Electrical Code ANSI/NFPA No. 70-latest Edition, or 2)
CSA STD. C22.1 “Canadian Electrical Code - Part 1”. This
appliance must be electrically grounded in accordance with
these codes.
1.2 ModelIdentication
Consult the rating plate on the unit. The following information
describes the model number structure.
Bradford White appliances are covered by a
limited warranty.
All warranty claims must be made to an authorized
Bradford White wholesale rep / distributor. To nd
information about the wholesalers in your area, please go
to www.bradfordwhite.com. and click on ‘Wholesalers’.
Claims must include the serial number and model (this
information can be found on the rating plate), installation
date, and name of the installer. Shipping costs are not included
in the warranty coverage.
Some accessory items may be shipped in separate packages.
Verify receipt of all packages listed on the packing slip.
Inspect everything for damage immediately upon delivery,
and advise the carrier of any shortages or damage. Any such
claims should be led with the carrier. The carrier, not the
shipper, is responsible for shortages and damage to the
shipment whether visible or concealed.
1.5 Unpacking
The Brute Elite unit is shipped in a single crate with the
following standard components packed with the appliance.
(See Figure 8.)
A. Exhaust vent terminal (US only)
B. Air intake terminal
C. Temperature/pressure gauge kit
D. Circulator pump/wire harness (units with pump)
E. CPVC exhaust pipe section (80-850) (US only)
F. Outdoor/system sensor kit
G. Flow switch kit (399-850)
H. Alternate size vent/terminal screens
J. Exhaust vent adapter CPVC/ST ST (750-850)
K. 4x6 PVC adapter with 4x7 PVC pipe section
(750-850) (not to be used on exhaust in Canada)
1. Remove all packing and tie-down materials.
2. Check the contents of the carton against the items
shown.
Figure8-ContentsofShippingPackage
1.6 Dimensions
All Brute Elite model dimensions are shown in Figure 9.
BRUTE ELITE
Page 7
W L H AIR INLET VENT
SIZE IN CM IN CM IN CM IN CM IN CM
The Brute Elite unit is designed for indoor installations
only.
The appliance should be located to provide clearances on all
sides for maintenance and inspection. It should not be located
in an area where leakage of any connections will result in
damage to the area adjacent to the appliance or to lower oors
of the structure.
When such a location is not available, it is recommended that
a suitable drain pan, adequately drained, be installed under the
appliance.
The appliance is design certied by CSA-International for
installation on combustible ooring; in basements; in closets,
utility rooms or alcoves. Brute Elite Boilers must never be
installed on carpeting. The location for the appliance should
be chosen with regard to the vent pipe lengths and external
plumbing and on a level surface. The unit shall be installed
such that the gas ignition system components are protected
from water (dripping, spraying, rain, etc.) during operation
and service (circulator replacement, control replacement, etc.).
When vented vertically, the Brute Elite must be located as
close as practical to the vertical section of the vent. If the vent
terminal and/or combustion air terminal terminate through a
wall, and there is potential for snow accumulation in the local
area, both terminals should be installed at an appropriate level
above grade or the maximum expected snow line.
The dimensions and requirements that are shown in Table 1
should be met when choosing the locations for the appliance.
2.2 LocatingApplianceforCorrectVent
DistancefromOutsideWallor
RoofTermination
The forced draft combustion air blower in the appliance has
sufcient power to vent properly when the guidelines in Table
2are followed.
NOTE: When located on the same wall, the Brute Elite
combustion air intake terminal must be installed a
minimum of 12” below the exhaust terminal.Models 399850 also require a minimum horizontal distance from
intake to exhaust terminal of 36”.
For concentric vent terminal kit (optional), follow installation
instructions included with the kit.
APPLIANCE SUGGESTED SERVICE ACCESS CLEARANCE
SURFACE INCHESCM
Left Side 12.5
Right Side 1231
Top 24 61
Back 6 15
Closet, Front (285-500)615
Alcove, Front (285-500)2461
Front (600-850)2461
Vent – –
Certied by CSA for zero clearance to
combustible materials on all sides.
Table1-Clearances
INTAKE / EXHAUST
STANDARD MAX EQUIV. OPTIONAL MAX EQUIV.
SIZE VENT FT.M VENT FT. M
Installations in the U.S. require exhaust vent pipe that is a combination
of PVC & CPVC complying with ANSI/ASTM D1785 F441 or stainless
steel complying with UL1738. Installations in Canada require exhaust
vent pipe that is certied to ULC S636.
Intake (air) pipe must be PVC or CPVC that complies with ANSI/ASTM
D1785 F441, ABS that complies with ANSI/ASTM D1527 or galvanized
material.
The installer must comply fully with the manufacturer’s installation
instructions, including use of minimum exhaust length CPVC, to main-
tain ANSI Z21.13 safety certication.
Closet and alcove installations do not allow the use of PVC under any
circumstances
To calculate max equivalent length, measure the linear feet of the pipe,
and add 5 feet (1.5m) for each 90°* elbow used.
* For any combination of vent and intake lengths up to 40 equivalent
feet, any even or uneven combination of length is allowed. For overall
lengths greater than 40 equivalent feet, the exhaust may be up to 20
feet greater than the intake length.
Table2-Vent/AirPipeSizes
*Add 2
1
/
feet (.76 meters) for each 45 elbow used.
2
BRUTE ELITE
Page 9
Section 3 VENTING AND COMBUSTION AIR
3.1 CombustionAir
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.
A Brute Elite unit can take combustion air from the space
in which it is installed, or the combustion air can be ducted
directly to the unit. Ventilation air must be provided in either
case.
CombustionAirFromRoom
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.
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
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
Single wall galv. steel 26 gauge
Table4-RequiredCombustionAirPipeMaterial
based upon the intended application of the boiler.
Page 10
BRADFORD WHITE C ORP.
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/CSA B149.
DuctedCombustionAir
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 Bradford White horizontal wall
terminal, shown in Table 3a and 3b. See Table 2 to select the
appropriate diameter air pipe. When taken from the roof, a
eld-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 combustion
air intake. (See Table 4.) The pipe should be sized per Table
2. Route the intake to the boiler as directly as possible. Seal
all joints. Provide adequate hangers. The unit must not support
the weight of the combustion air intake pipe. Maximum linear
pipe length allowed is shown in Table 2. Subtract 5 allowable
linear ft. (1.5m) for every elbow used.
The connection for the intake air pipe is at the top of the unit.
(See Figure 9.)
In addition to air needed for combustion, air shall also be
supplied for ventilation, including air required for comfort
and proper working conditions for personnel. Refer to the
applicable codes.
The ue temperature of the Brute Elite changes
dramatically with changes in operating water
temperature. Therefore, it is necessary to assess the
application of the boiler to determine the required
certied vent class. If the Brute Elite is installed in an
application where the ambient temperature is elevated,
and/or installed in a closet/alcove, polypropylene, CPVC
or stainless steel material is required. If the system
temperatures are unknown at the time of installation,
Class IIB or higher venting material is recommended.
The Brute Elite is a Category IV appliance and may be
installed with PVC and CPVC that complies with ANSI/
ASTM D1785 F441, polypropylene that complies with
ULC-S636 Class IIb, or a stainless steel venting system that
complies with UL 1738 Standard. (See Table 5.)
The unit’s vent can terminate through the roof, or through an
outside wall.
When using PVC/CPVC for vent material, venting must be
connected to the CPVC section included with Brute Elite
sizes 80-850. The CPVC vent section included with the Brute
Elite may be broken by CPVC ttings if necessary, but never
reduced in total length. See Table 2 to select the appropriate
vent pipe diameter. When using polypropylene, all vent
material must be produced by the same manufacturer, and
have a ULC-S636 rating.
3.2 Venting
WARNING
Failure to use polypropylene CPVC or stainless steel
venting for the rst 20” (285-600) / 30” (80-210) of vent
material or for any part of the venting that is installed
inside a closet may lead to property damage, personal
injury or death. The proper length of this material is
supplied with boiler. Boilers in the U.S. may use pipe
included with the boiler.
Failure to use the appropriate vent material, installation
techniques, glues/sealants could lead to vent failure
causing property damage, personal injury or death.
All venting must be installed according to this manual
and any other applicable local codes, including but
not limited to, ANSI Z223.1/NFPA 54, CSA B149.1,
CSAB149.2 and ULC-S636. Failure to follow this manual
and applicable codes may lead to property damage,
severe injury, or death.
INSTALLATION STANDARDS
MATERIAL UNITED STATES CANADA
Stainless Steel UL 1738 Venting must be ULC-S636 certied for use as
PVC, sch 40 ANSI/ASTM D1785 venting material. The venting material class must be
CPVC, sch 40 ANSI/ASTM F441 chosen based upon the maximum ue gas temperature
Polypropylene
Table5-RequiredExhaustVentMaterial
*
*
*
In Canada, refer to CAN/CSAB199.1
*
*
*
Figure10-CombustionAirandVentThroughRoof
ULC-S636 and the intended application of the boiler.
*
BRUTE ELITE
Page 11
All installations should be done following the vent supplier’s
recommended installation techniques. If manufacturer’s
instructions are not available for the material used, follow the
Bradford White recommendations.
The vent pipe must pitch upward, toward the vent terminal,
not less than 1/4” per foot, so that condensate will run back
to the Brute Elite to drain. Route 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. Please see Table
2 for proper diameter vs. length allowed.
IMPORTANT NOTE ABOUT COMMON VENTING: A
single vent that is shared by multiple Brute Elite units
MUST be engineered by a competent venting specialist,
and involves the selection of draft inducing equipment,
Brute Elite boilers and water heaters are Vent Category IV
appliances. Per the requirements of CAN/CSA-B149.1,
only BH vent systems can be connected to these units and
such vent systems, either ULC S636 certied stainless steel
or other ULC S636 certied BH vent (eg. plastics) must be
installed per the vent manufacturer’s certied installation
instructions.
As a result, two items listed in the Unpacking section (Figure
8) are not included with Brute Elite units for Canada
(underlined):
Class II venting systems are suitable for gas-red appliances
producing ue gas temperatures of 135°C or less.
Class II venting systems are further classied into four
temperature ratings as follows:
A Up to and including 65°C
B Up to and including 90°C
C Up to and including 110°C, and
D Up to and including 135°C
IMPORTANT! It is also the responsibility of the installer
to ensure that a ue gas sampling port is installed in the vent
system. This ue gas sampling port must be installed near the
ue connection of the Brute Elite unit: within 2 feet of the
ue connection. There is no ue gas sampling port internal
to the Brute Elite, so one must be installed in the vent system
external to the Brute Elite unit. A ue gas sampling port
available as a component of the ULC S636 certied vent
system is preferred. However, if one is not available with
the certied vent system, Bradford White suggests using a
tee with the branch connection sized to allow for insertion
of a ue gas analyzer probe. The branch connection must be
resealable with a cap or other by other means to ensure the
vent system remains sealed. (See Figure 11.)
Consideration must be given to the placement and orientation
of the ue gas sampling port to ensure that condensate is free
to ow back into the Brute Elite unit and not collect anywhere
in the vent system - including in the ue gas sampling port.
An exhaust vent terminal must be installed. If an exhaust
vent terminal is not available with the certied vent system,
Bradford White suggests the use of a coupler tting from the
certied vent system into which the vent terminal screen,
A exhaust vent terminal (not included)
B. air intake terminal
C. temperature/pressure gauge kit
D. circulator pump/wire harness (units with pump)
E. CPVC exhaust pipe section (80-500) (not incl.)
F. outdoor/system sensor kit
G. ow switch kit (399-850)
H. alternate size vent/terminal screens
J. exhaust vent adapter CPVC/ST ST (750-850)
It is the responsibility of the appropriately licensed technician
installing this Brute Elite unit to use ULC S636 certied vent
material consistent with the requirements as described in the
Venting and Combustion Air section.
Class I venting systems are suitable for gas-red appliances
producing ue gas temperature of more than 135°C, but not
more than 245°C.
Figure11-TestPort-ULC-S636system
Page 12
BRADFORD WHITE C ORP.
included with the Brute Elite and shown in the Unpacking
section, be installed. Be sure to install and terminate both vent
and combustion air pipes per the Venting and Combustion Air
section of the Brute Elite instructions.
3.3 LocatingVentandCombustionAir
Terminals
SideWallVentTerminal
The appropriate Bradford White side wall vent terminal
must be used. The terminal 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 points
listed on the following page when installing the terminal.
1. Figure 12 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, avoid locations
under windows or near doors.
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 surfaces or objects.
7. If the boiler or water heater uses ducted combustion air
from an intake terminal located on the same wall, see
Figures 12-14 for proper spacing and orientation.
If the vent termination is located in an area exposed to high
winds, an optional PVC tee (the same diameter as the vent
pipe) may be used. The tee’d vent termination offers greater
protection from wind related operating issues.
damage by accident or vandalism. It must be at least 7
feet (2.1m) above a public walkway.
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 (30cm) above grade, but the
installer may determine it should be higher, depending
upon local conditions.
4. If the Brute Elite is side-wall vented to the same wall,
locate the vent terminal at least 1 foot (0.3m) above the
combustion air terminal.
5. For concentric vent, follow instructions included
with vent kit.
6. Multiple vent kits should be installed such that the
horizontal distance between the outlet group and the
inlet group is 36” (90cm). (See Figure 13.)
7. The vent outlet for models 80-285 must be no lower
than the center of the air inlet, and must be at least 12”
(30cm) away from the air inlet. Vent outlets for models
399-850 must be at least 12” above the top of the air
inlet, and must be at least 36” (90cm) horizontally from
the air inlet. (See Figure 14.)
VerticalVentTerminal
When the unit is vented through the roof, the vent must extend
at least 3 feet (0.9m) above the point at which it penetrates
the roof. It must extend at least 2 feet (0.6m) higher than
any portion of a building within a horizontal distance of 10
feet (3.0m), and high enough above the roof line to prevent
blockage from snow. The vent terminal included with the
Brute Elite can be used in both vertical and horizontal
applications. When the combustion air is taken from the roof,
the combustion air must terminate at least 12” (30cm) below
the vent terminal. (See Figure 10.)
VerticalCombustionAirTerminal
When combustion air is taken from the roof, a eld-supplied
rain cap or an elbow arrangement must be used to prevent
entry of rain water. (See Figure 10.) The opening on the end
of the terminal must be at least 12” (30cm) above the point at
which it penetrates the roof, and high enough above the roof
line to prevent blockage from snow. When the vent terminates
on the roof, the combustion air must terminate at least 12”
(30cm) below the vent terminal.
SideWallCombustionAirTerminal
The Bradford White side wall combustion air terminal, or
concentric terminal must be used when the heater takes air
from a side wall. (See Table 3.) Contact Bradford White for
AL29-4C termination ttings. Consider the following when
installing the terminal. (See Figures 12-14.)
1. Do not locate the air inlet terminal near a source of
corrosive chemical fumes (e.g., cleaning uid, chlorine
compounds, etc.)
2. Locate the terminal so that it will not be subject to
In Massachusetts the following items are required if the
side-wall exhaust vent termination is less than seven (7) feet
above nished grade in the area of the venting, including but
not limited to decks and porches. From Massachusetts Rules
and regulations 248 CMR 5.08 (begininning on 2nd page
following):
A= Clearance above grade, veranda, porch, 12 inches (30 cm) 12 inches (30 cm) deck, or balcony See note 6 See note 6
B= Clearance to window or door that may be Direct vent only: 12 inches (30cm); 36 inches (91 cm)opened Other than Direct vent: 4 ft (1.2m) below or to NT 80 only - 12 inches (30 cm)
side of opening; 1 ft (30cm) above opening
C= Clearance to permanently closed window See note 4 See note 5
D= Vertical clearance to ventilated soft located
above the terminal within a horizontal See note 4 See note 5
distance of 2 feet (61cm) from the center
line of the terminal
E= Clearance to unventilated soft See note 4 See note 5
F= Clearance to outside corner See note 4 See note 5
G= Clearance to inside corner See note 4 See note 5
H= Clearance to each side of center line 3 feet (91 cm) within a height 15 feet
extended above meter/regulator assembly See note 4 above the meter/regulator assembly
I= Clearance to service regulator vent outlet See note 4 3 feet (91 cm)
J= Clearance to nonmechanical air supply Direct vent only: 12” (30cm) 80-285; 36” (91cm)
inlet to building or the combustion air inlet 399-850. Other than Direct vent: 4 ft (1.2m) below 36 inches (91 cm)to any other appliance or to side of opening; 1 ft (30cm) above opening NT 80 only - 12 inches (30 cm)
K= Clearance to a mechanical air supply inlet 3 feet (91 cm) above if within 10 feet (3 m) 6 feet (1.83 m)
horizontally
L= Clearance above paved sidewalk or pavedVent termination not allowed in this location7 ft (2.1 m) driveway located on public propertyfor category IV appliances. See note 5
M= Clearance under veranda, porch, deck, See note 4 12 inches (30 cm) (see note 3)
or balcony
Notes:
1. In accordance with the current ANSI Z223.1 / NFPA 54 National Fuel Gas Code.
2. In accordance with the current CAN/CSA-B149.1 Installation Codes.
3. Permitted only if veranda, porch, deck, or balcony is fully open on a minimum of two sides beneath the oor.
4. For clearances not specied in ANSI Z223.1 / NFPA 54, clearance is in accordance with local installation codes and the requirements of the
gas supplier.
5. For clearances not specied in CAN/CSA-B149, clearance is in accordance with local installation codes and the requirements of the gas
supplier.
6. IMPORTANT: Terminal must be placed such that it remains a minimum 12” above expected snow line. Local codes may have more
*When vent terminal is less than 10 feet (3m) horizontally
from a forced air inlet, the terminal must be at least 3 feet
(0.9m) above the air inlet. (US only)
At the time of installation of the side wall vented gas
fueled appliance, the installing plumber or gas-tter shall
observe that a hard-wired carbon monoxide detector with
an alarm battery back-up is installed on the oor level
where the gas appliance is to be installed. In addition, the
installing plumber or gastter shall observe that a battery
operated or hard-wired carbon monoxide detector with an
alarm is installed on each additional level of the dwelling,
building or structure served by the side-wall horizontally
vented gas fueled equipment. It shall be the responsibility
of the property owner to secure the services of quali-
ed licensed professionals for installation of hard-wired
carbon monoxide detectors.
BRADFORD WHITE C ORP.
a. In the event that the side-wall horizontally vented gas
fueled equipment is installed in a crawl space or an attic,
the hard-wired carbon monoxide with alarm and battery
back-up may be installed on the next adjacent oor level.
b. In the event that the requirements of the subdivision
cannot be met at the time of completion of installa-
tion, the owner shall have a period of thirty (30) days to
comply with the above requirements, provided, however,
that during said thirty (30) day period, a battery operated
carbon monoxide detector with an alarm be installed.
2. Approved Carbon Monoxide Detectors
Each carbon monoxide detector shall comply with NFPA
720 and be ANSI/UL 2034 listed and IAS certied.
3. Signage
A metal or plastic identication plate shall be permanent-
ly mounted to the exterior of the building at a minimum
height of eight (8) feet above grade directly in line with
the exhaust vent terminal for horizontally vented gas fueled heating appliance or equipment. The sign shall read,
in print no less than one-half (1/2) inch in size: “GAS
VENT DIRECTLY BELOW, KEEP CLEAR OF ALL
OBSTRUCTIONS.”
4. Inspection
The state or local gas inspector of the side-wall hori-
zontally vented gas fueled appliance shall not approve
the installation unless, upon inspection, the inspector
observes carbon monoxide detectors and signage installed
in accordance with the provisions of 248 CMR 5.08(2)
(a) 1-4.
Figure14-MinimumVentingDistance
BRUTE ELITE
Page 15
3.4 Common Vent Test
NOTE: This section does not describe a method for
common venting Brute Elite units. It describes what
must be done when a unit is removed from a common
vent system. Brute Elite units require special vent
systems and fans for common vent. Contact the factory
if you have questions about common venting Brute Elite
units.
When an existing boiler is removed from a common venting
system, the common venting system is likely to be too large
for proper venting of the appliances remaining connected to it.
At the time of removal of an existing boiler, the following
steps shall be followed with each appliance remaining
connected to the common venting system placed in operation,
while the other appliances remaining connected to the
common venting system are not in operation.
1. Seal any unused openings in the common venting system.
2. Visually inspect the venting system for proper size and
horizontal pitch and determine there is no blockage or
restriction, leakage, corrosion and other deciencies
which could cause an unsafe condition.
3. Insofar as it is practical, close all building doors and
windows and all doors between the space in which the
appliances remaining connected to the common venting
system are located and other spaces of the building. Turn
on clothes dryers and any appliance not connected to
the common venting system. Turn on any exhaust fans,
such as range hoods and bathroom exhausts, so they will
operate at maximum speed. Do not operate a summer
exhaust fan. Close replace dampers.
4. Place in operation the appliance being inspected. Follow
the lighting instructions. Adjust the thermostat so the
appliance will operate continuously.
5. Test for spillage at the draft hood relief opening after
5 minutes of main burner operation. Use the ame of a
match or candle, or smoke from a cigarette, cigar or pipe.
6. After it has been determined that each appliance
remaining connected to the common venting system
properly vents when tested as outlined above, return
doors, windows, exhaust fans, replace dampers and any
other gas burning appliance to their previous conditions
of use.
7. Any improper operation of the common venting system
should be corrected so that the installation conforms to
the National Fuel Gas Code, ANSI Z223.1/NFPA 54 and/
or CSA B149.1, Installation Codes. When resizing any
portion of the common venting system, the common
venting system should be resized to approach the minimum size as determined using the appropriate tables and
guidelines in the National Fuel Gas Code, ANSI Z223.1
NFPA 54 and/or CSA B149.1, Installation Codes.
Section 4 GAS SUPPLY AND PIPING
Gas piping should be supported by suitable hangers or oor
stands, not the appliance.
Review the following instructions before proceeding with the
installation.
1. Verify that the appliance is tted for the proper type of
gas by checking the rating plate. Brute Elite will function
properly without the use of high altitude modication at
elevations up to 10,000 feet (3050 m).
2. The maximum inlet gas pressure must not exceed 13”
W.C. (3.2kPa). The minimum inlet gas pressure is 4”
W.C. (1.0kPa).
3. Refer to Tables 6a, 6b, 6c and 6d to size the piping.
4. Run gas supply line in accordance with all applicable
codes.
5. Locate and install manual shutoff valves in accordance
with state and local requirements.
6. A sediment trap must be provided upstream of the gas
controls.
7. All threaded joints should be coated with piping
compound resistant to action of liqueed petroleum gas.
8. The appliance and its individual shutoff valve must be
disconnected from the gas supply piping during any
pressure testing of that system at test pressures in excess
of 1/2 PSIG (3.45kPa).
9. The unit must be isolated from the gas supply system by
closing its individual manual shutoff valve during any
pressure testing of the gas supply piping system at test
pressures equal to or less than 1/2 PSIG (3.45kPa).
10. The appliance and its gas connection must be leak tested
before placing it in operation.
11. Purge all air from gas lines.
WARNING:
Open ame can cause gas to ignite and result in
property damage, severe injury, or loss of life.
NOTE: The Brute Elite appliance and all other gas ap-
pliances sharing the gas supply line must be ring at
maximum capacity to properly measure the inlet supply
pressure. The pressure can be measured at the supply
pressure port on the gas valve. Low gas pressure could
be an indication of an undersized gas meter, undersized
gas supply lines and/or an obstructed gas supply line.
Some Brute Elite units are equipped with low and high
gas pressure switches that are integrally vent limited.
These types of devices do not require venting to atmosphere.
Page 16
BRADFORD WHITE C ORP.
Brute Elite
NATURAL GAS
REQUIRED
CU FT
SIZE / HR.
80 80
105 105
150 150
199/210 199/210
285 285
TO SIZE PIPING:
Measure linear distance from meter outlet to last
boiler. Add total input of all boilers and divide
by 1000 to obtain cu ft / hr required. Add total
equivalent length of ttings used according to
Table 6B. Align total length (pipe and ttings) on
left side column of Table 6C with highest cubic
feet of gas required.
399 399
500 500
600 600
750 750
850 850
Notes:
Consult and conrm with Applicable Fuel Gas
Code before beginning work. Verify gas inlet
pressure is between 4 and 13 in W.C. before
starting boiler.
Table6a
EQUIVALENT LENGTHS OF STRAIGHT PIPE FOR TYPICAL SCH 40 FITTINGS
NOMINAL PIPE SIZE
FITTING 1/2” 3/4” 1” 1-1/4” 1-1/2” 2”
LINEAR FEET
90° ELBOW 3.6 4.4 5.2 6.6 7.4 8.5
TEE 4.2 5.3 6.6 8.7 9.9 12
Table6b
SCH 40 METAL PIPE CAPACITY FOR 0.60 SPECIFIC GRAVITY NATURAL GAS
* Maximum water hardness of 10 grains per gallon allowed.
** See section 6B.7 on page 27 for pump information.
Table8-WaterHeaterFlowData
BRUTE ELITE
Section 6A WATER CONNECTIONS BNTH BOILER
Section 6 is divided into two parts. Section
6A covers BNTH units designed for hydronic
heating. Section 6B covers BNTV models,
which are designed exclusively for “volume
water” domestic hot water applications. Refer
to the proper section for instructions on
installing and piping your product. Refer to
Table 9 for the connection pipe sizes required.
6A.1 BNTHSystemPiping-
HotSupplyConnections
NOTE: This appliance must be installed in a closed
pressure system with a minimum of 12 psi (82.7kPa)
static pressure at the boiler.
Hot water piping should be supported by suitable hangers or
oor stands. Do not support piping with this appliance. Due
to expansion and contraction of copper pipe, consideration
should be given to the type of hangers used. Rigid hangers
may transmit noise through the system resulting from the
piping sliding in the hangers. It is recommended that padding
be used when rigid hangers are installed. Maintain 1” (2.5cm)
clearance to combustibles for hot water pipes.
Pipe the discharge of the relief valve (full size) to a drain or
in a manner to prevent injury in the event of pressure relief.
Install an air purger, an air vent, a diaphragm-type expansion
tank, and a hydronic ow check in the system supply loop.
Minimum ll pressure must be 12psig (82.7kPa). Install
shutoff valves where required by code.
Page 17
Brute Elite’s efciency is higher with lower return
water temperatures. Therefore, to get the most of low return
temperature with multiple boilers, pipe as shown in Figures 17-19.
Brute Elite BNTV models 150-500 can be ordered with or
without a pump included.
Brute Elite BNTH models 80-500 can also be ordered with or
without a pump included.
Brute Elite with a pump MUST be piped in a primary-
secondary fashion (using either piping or a hydraulic
separator) such that the pump that is mounted on the boiler
ONLY serves the boiler.
When the pump is supplied by Bradford White, the Brute Elite
boiler must be located within 15 feet (4.6m) of the supply and
return header (or the hydraulic separator). Pumps supplied by
Bradford White are sized for a maximum of 30 feet (9.1m)
of connection size piping and the headloss of the boiler only.
(See Table 7.)
If longer pipe lengths are required, the pump should be sized
for the boiler per Table 7 and for the piping it will serve,
and should be supplied to job separately. Even with pumps
supplied by others, Bradford White strongly recommends
primary-secondary piping.
6A.2BNTHColdWaterMake-Up
1. Connect the cold water supply to the inlet connection of
an automatic ll valve.
2. Install a suitable back ow preventer between the
automatic ll valve and the cold water supply.
The boiler piping system of a hot water heating boiler
connected to heating coils located in air handling appliances
where they may be exposed to refrigerated air circulation
must be equipped with ow control valves or other automatic
means to prevent gravity circulation of the boiler water during
the cooling cycle.
A boiler installed above radiation level, or as required by the
authority having jurisdiction, must be provided with a low
water cutoff device either as a part of the boiler or at the time
of boiler installation.
Page 18
BRADFORD WHITE C ORP.
6A.3CondensateDrain
A condensate drain trap is built into the Brute Elite unit.
Connect a 3/4” PVC pipe between the drain connection and
a oor drain (or a condensate pump if a oor drain is not
accessible).
The condensate drain must be installed so as to prevent
accumulation of condensate. When a condensate pump is not
used, the tubing must continuously slope downward toward
the drain with no spiraling.
Consult local codes for the proper disposal method for the
condensate.
Caution
Condensate is mildly acidic (pH = 5), and may harm
some oor drains and/or pipes, particularly those
that are metal. Ensure that the drain, drainpipe,
and anything that will come in contact with the
condensate can withstand the acidity, or neutralize
the condensate before disposal. Damagecausedby
a 20°F to 25°F temperature rise through the boiler.
NOTE: Bradford White supplied pumps are not all
capable of maintaining the reduced temperature rise
required with glycol concentrations greater than 35%.
If glycol concentrations required are greater than 35% a
eld supplied pump should be used.
Caution
Different glycol products may provide varying degrees of
protection. Glycol products must be maintained properly
in a heating system, or they may become ineffective.
Consult the glycol specications, or the glycol
manufacturer, for information about specic products,
maintenance of solutions, and set up according to your
particular conditions.
6A.5BNTHSuggestedPipingSchematics
Figures 15 through 21 show suggested piping congurations
for BNTH boilers. These diagrams are only meant as a guide.
All components or piping required by local code must be
installed.
6A.4 Freeze Protection
WARNING
Glycol must not be used in domestic hot water
applications. Refer to Section 6B.4 for instructions on
BNTV, domestic hot water freeze protection.
Brute Elite units are certied for indoor use only, and are not
design-certied for placement outdoors.
Proper precautions for freeze protection are recommended
for boiler installations in areas where the danger of freezing
exists.
Power outage, interruption of gas supply, failure of system
components, activation of safety devices, etc., may prevent a
boiler from ring. Any time a boiler is subjected to freezing
conditions, and the boiler is not able to re, and/or the
water is not able to circulate, there is a risk of freezing
in the boiler or in the pipes in the system. When water
freezes, it expands which may result in bursting of pipes, or
damage to the boiler, which could result in leaking or ooding
conditions.
Do not use automotive antifreeze. To help prevent freezing,
Bradford White recommends the use of inhibited glycol
concentrations between 20% and 35% glycol. Typically, this
concentration will serve as burst protection for temperatures
down to approximately -5°F (-20°C). If temperatures are
expected to be lower than -5°F (-20°C), glycol concentrations
up to 50% can be used. When concentrations greater than
35% are used, water ow rates must be increased to maintain
6A.6RecognizedChemicals
The following manufacturers offer glycols, inhibitors, and
anti foamants that are suitable for use in the Brute Elite.
Please refer to the manufacturers instructions for proper
selection and application.