Bradford White BLMC125NA User Manual
Installation and Operation Instructions Document 1281D
Brute Elite
125
Installation and Operation
Instructions for
Wall-Mounted
Modulating Boiler
Model BLMH
125 MBTU/h
Combination
Boiler and Water Heater
Model BLMC
125 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.
AVERTISSEMENT
H2364500A
238-50569-00B REV 7/14
Bradford White Corp.
TABLE OF CONTENTS
SECTION 1.
General Information
1.1 Introduction ........................................................ 2
1.2 Rating Plate ........................................................ 2
1.3 Model Nomenclature........................................... 2
1.4 Start Up / Shut Down Instruction (Decal) ............3
1.5 Unpacking ...........................................................3
1.6 Warranty ............................................................. 3
1.7 Product Overview ...............................................4
1.8 Dimensions ......................................................... 5
SECTION 2.
Locating the Appliance
2.1 Locating the Appliance........................................6
2.2 Locating Appliance for Correct Vent Distance
from Outside Wall or Roof Termination ............... 6
SECTION 3.
Venting and Combustion Air
3.1 Combustion Air ................................................... 8
3.1.1 Combustion Air from Room.................................8
3.1.2 Ducted Combustion Air .......................................8
3.2 Venting (Exhaust) ............................................... 9
3.3.1 Side Wall Vent Terminal .................................... 10
3.3.2 Side Wall Combustion Air Terminal ................... 10
3.3.3 Vertical Vent Terminal ....................................... 10
3.3.4 Vertical Combustion Air Terminal ...................... 10
3.3.5 Installations in the Commonwealth
of Massachusetts ..............................................12
3.4 Common Vent Test ........................................... 12
SECTION 4.
Gas Supply and Piping
4.1 Gas Supply and Piping .......................................... 14
SECTION 5.
Pump Capacity
5.1 Brute Elite Heating System Pump Capacity .......... 15
SECTION 6.
Water Connections
6.1 Central Heat System Piping.............................. 15
6.2 Cold Water Make-Up ........................................ 15
6.3 Freeze Protection .............................................16
6.4 Suggested Piping Schematics .......................... 17
6.5 Recognized Chemicals ..................................... 17
6.6 Domestic Hot Water (DHW) Piping (BLMC) ..... 17
6.7 Condensate Drain .............................................17
SECTION 7.
Electrical Connections
7.1 Main Power .......................................................23
7.2 Pump Connections ...........................................23
7.3 24Vac Transformer Circuit Breaker ................... 23
7.4 Central Heat - Call for Heat ..............................23
7.5 Outdoor Air Temperature Sensor ...................... 23
7.6 Domestic Hot Water Connection ......................23
7.7 System Sensor
(lead lag/cascading operation only) .................. 23
7.8 External Control Connections ........................... 23
7.9 Lead Lag / Cascading Wiring Connections....... 23
7.10 Wiring Diagrams ............................................... 24
SECTION 8.
Control Setup and Operation
8.1 USER INTERFACE and
Digital Display Navigation ............................. 26
8.2 Ignition Control - Sequence of Events .............. 26
8.3 Modulation Control............................................ 27
8.4 Pump Control ....................................................27
8.5 High Limit ..........................................................27
8.6 Stack Temperature ............................................27
8.7 Domestic Hot Water Temperature..................... 27
8.8 Lead Lag / Cascading ........................................ 27
8.8.1 Lead Lag Setpoint............................................. 27
8.8.2 Lead Lag Master / Slave Selection ................... 27
8.8.3 Lead Lag Address ............................................. 27
8.8.4 Lead Lag Hysteresis ......................................... 27
8.8.5 Lead Lag Base Load Setting ............................27
The Brute Elite 125
Page 1
SECTION 9.
Modes of Operation
9.1 Hydronic Heating Demand................................ 28
9.2 Hydronic Heating with Outdoor Reset ..............28
9.3 Hydronic Heating Using External
Modulation Control............................................ 28
9.4 Hydronic Heating Using Local Lead-Lag/
Cascading Feature ...........................................29
9.5 Warm Weather Shutdown ................................. 29
9.6 Domestic Hot Water Demand (BLMC only) ...... 29
SECTION 10.
Set Up Instructions
10.1 Filling the Boiler System ................................... 30
10.2 Starting the Burner after Set Up ....................... 30
10.2.1 Burner Operation ............................................ 30
10.2.2 Boiler Setup and Adjustment .......................... 31
10.2.3 Manifold Pressure Check................................31
10.3 Shutting Down Brute Elite ................................. 31
10.4 To Restart Brute Elite ........................................31
SECTION 12.
Trouble Shooting
12.1 Sequence of Operation .................................... 35
12.2 Short Cycling .................................................... 35
12.3 Error Codes ...................................................... 35
SECTION 13
Replacement Parts
13.1 General Information ..........................................38
13.2 Parts List ........................................................... 38
SECTION 11.
Maintenance
11.1 System Maintenance ....................................... 33
11.2 Appliance Maintenance and Component
Description ........................................................33
11.2.1 Burner ............................................................... 33
11.2.2 Appliance Control ............................................. 33
11.2.3 Ignitor Assembly ............................................... 33
11.2.4 Flame Sensor ................................................... 34
11.2.5 Blower ............................................................... 34
11.2.6 Heat Exchanger Coils ....................................... 34
11.2.7 Gas Conversion ................................................ 34
Page 2
SECTION 1.
General Information
Bradford White Corp.
1.1 Introduction
This manual provides information necessary for
the installation, operation, and maintenance of Bradford
White Corp. Brute Elite appliances. Read it carefully
before installation.
All application and installation procedures should
be reviewed completely before proceeding with the
installation. Consult the Bradford White Corp. 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.
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.
WARNING
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.
1.2 Rating Plate
The Rating Plate contains Manufacture Date, Model
Number, Serial Number, Output Rating, and all other
information pertaining to your Brute Elite. The Rating
Plate is located behind the center panel which will not
open until the lower front panel is opened rst.
To open the Brute Elite, rst loosen the two
phillips screws (see Figure 1A) and then open the front
bottom panel downward. The center front panel will
then also open downward, revealing the Rating Plate.
1.3 Model Nomenclature
The Model Number is shown on your Rating
Plate and consists of a series of letters and numbers
(nomenclature) that further identies the characteristics
of your Brute Elite.
The following nomenclature identies the
individual characters of your model number.
(1-3) Model Series Designation
B L M = Bradford White, Brute Elite 125
(4) Usage
H = Modulating Boiler
C = Combination Boiler and Water Heater
(5-7) Size
1 2 5 = 125,000 BTU/hr input
(8) Fuel
N = Natural Gas
P = LP Gas
(9) Altitude
A = 0-10,000 Feet
(10) Revision
1 = First version
(11) Options Code
X = No Options
(12) Pump Options
X = No Pump
1.4 Start Up / Shut Down Instructions (Decal)
The Start Up / Shut Down Instruction (Decal) can be
found on the back of the Top Panel (see Figure 1A).
This Decal is also referred to as the Operating Instructions
Label and/or Warning Label.
Model Nomenclature
1
2 3 4 5 6 7 8 9 10 11 12
L M 1 2 5 A 1 X X
B
SERIES
B L M
USAGE
H - HYDRONIC
C - COMBI
UNIT
SIZE
MBTU/h
1 2 5
FUEL
N - NATURAL
P - PROPANE
ALTITUDE
A - 0-10,000 FEET
REVISION
1 - FIRST
OPTIONS
X - NONE
PUMP
X - NONE
The Brute Elite 125
START UP / SHUT DOWN
INSTRUCTION (DECAL)
IS ON THE BACK OF THE
TOP COVER
RATING PLATE
USER INTERFACE
1. LOOSEN
THESE TWO
SCREWS
Page 3
5. THE TOP
PANEL THEN
SLIDES
UPWARD
AND OFF
4. TWO
MORE
SCREWS
3. FOLD
CENTER
PANEL
DOWNWARD
2. FOLD
BOTTOM
PANEL
DOWNWARD
Figure 1A. Opening the Brute Elite to locate the Rating Plate and Start Up / Shut Down Instruction (Decal)
To open the Brute Elite, rst loosen the two
phillips screws and then open the front bottom panel
downward. The center front panel will then also open
downward. Then loosen the 2 phillips screws and slide
the top panel upward and off. You will nd the Start Up
/ Shut Down Instruction (Decal) on the back of the Top
adapter and 30psi PRV ow restrictor), wall
mounting bracket (bolts/mounting hardware
provided by installer).
1. Remove all packing and tie-down materials.
2. Check contents of the carton against items shown.
Panel.
NOTE: For the complete Start up and Shut down
instructions for the Brute Elite, please reference
SECTION 10
of this manual.
1.6 Warranty
Bradford White Corp.’ Brute Elite appliances
are covered by a limited warranty. The owner
should complete the warranty registration at www.
BradfordWhite.com.
All warranty claims must be made to an
authorized Bradford White Corp. representative.
Claims must include the serial number and model
NOTE: To operate the Brute Elite
using the USER INTERFACE, please reference
SECTION 8
of this manual.
(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
1.5 Unpacking
The Brute Elite is shipped in a single crate with
the following standard components packed with the
appliance (see Figure 2):
2" PVC Terminal Kit (tee, elbow, screens, PRV
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.
Page 4
1.7 Appliance Overview
Bradford White Corp.
Figure 1B. Location of Components.
1) PRV, 30 PSI
5) Exhaust terminal assy
2) PRV Pipe w/ washer
6) Air intake terminal assy
3) Wall attach bracket
7) Ball valve
4) Outdoor sensor
8) System sensor (not
shown)
9) Flow restrictor (not shown)
Figure 2. Contents of Shipping Package.
SHOWN WITH SEVERAL PANELS COMPLETELY REMOVED
The Brute Elite 125
1.8 Dimensions
Page 5
Cond. Hydronic DHW 2nd Gas Hydronic DHW 2nd
Outlet Return Inlet Return Supply Supply Outlet Supply
3/4" 3/4" 1/2" 3/4" 1/2" 3/4" 1/2" 3/4"
PVC copper NPT copper NPT NPT NPT copper
Figure 3. Dimensional Drawing.
Page 6
SECTION 2.
Locating the Appliance
Bradford White Corp.
2.1 Locating the Appliance
Brute Elite is for indoor, wall-mounted
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 wall-mounted installation in
basements; in closets, utility rooms or alcoves. The
location for the appliance should be chosen with regard
to the vent pipe lengths and external plumbing and
on a plumb (vertical) wall. 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 Locating Appliance for Correct Vent
Distance from Outside Wall or
Roof Termination
The forced draft combustion air blower in the
appliance has sufcient power to vent properly when the
guidelines in Table 2 are 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.
For concentric vent terminal kit (optional), follow
installation instructions included with the kit.
APPLIANCE SUGGESTED SERVICE ACCESS CLEARANCE
SURFACE INCHES CM
Left Side 6 15
Right Side 6 15
Top 6 15
Closet, Front 6 15
Front 24 61
Vent 1 3
Certied by CSA for zero clearance to
combustible materials on all sides.
Table 1. Clearances.
INTAKE / EXHAUST
MAX EQUIV. CONCENTRIC MAX EQUIV.
SIZE VENT F T. M VENT FT. M
125 2" 40 6.1 3/5" 40 6.1
125 *3"* 100 30.5 3/5" 40 6.1
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.
Installer must comply fully with manufacturer's installation instructions,
to maintain 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 elbow used.
* Must use 2x3 adapter within 1 ft. (30cm) of boiler exhaust outlet.
Table 2. Vent / Air Pipe Sizes.
The Brute Elite 125
Figure 5. Mounting Detail.
Page 7
Brute Elite
Brute Elite
BLMC/H125
Note: Brute Elite
bracket and wall
bracket are
purposely offset.
(Minimum)
Zero clearance is allowed to combustible surfaces.
However, the above minimum service clearances are
strongly recommended.
Closet installations require minimum air ventilation
(see Section 3).
Figure 4. Locating the Appliance.
Figure 6. Wall Template (not to scale). Full-size template is
included with the unit.
NOTE: Brute Elite models include 16" on-center
mounting holes on upper rear of boiler jacket. These
holes are not identied on the mounting template. If
mounting conditions are appropriate, the installer may
opt to use this alternative method in lieu of the standard
wall bracket depicted. Installer must provide appropriate
mounting/anchoring hardware.
Page 8
Bradford White Corp.
SECTION 3.
Venting and Combustion Air
Bradford White Brute Elite includes a
standard CPVC vent/combustion air
adapter. If eld connections require
use of PVC/CPVC vent materials, the
installer must use proper adhesive to
join CPVC and/or PVC pipe and ttings.
3.1 Combustion Air
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.
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.
Method 1: Two permanent openings, one
commencing within 12" (300mm) of the top and one
commencing within 12" (300mm) of the bottom, of
HORIZONTAL INTAKE AND EXHAUST PVC VENT TERMINAL
KITS
2" PVC 3" PVC
SIZE Standard Concentric n/a
CA006000
125 included optional contact Bradford White
Concentric vent terminal = 10 ft. pipe length.
Table 3a. PVC Vent Te
CONCENTRIC WALL ROOF
SIZE ADAPTER TERMINAL TERMINAL
125 3CGV-VC 3CGV-AD- 3CVG-HZC
Table 3b. Approved Stainless Steel
Terminations and Adapters.
rminal Kits.
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 conned 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 Bradford
White horizontal wall terminal, shown in Table 3. 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 Figure 7).
Use ABS, PVC, CPVC or galvanized pipe for the
combustion air intake (see Table 4), 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 2).
In addition to air needed for combustion, air
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
Table 4. Required Combustion Air Pipe Material.
The Brute Elite 125
Page 9
shall also be supplied for ventilation, including air
required for comfort and proper working conditions for
personnel.
3.2 Venting (Exhaust)
WARNING
Failure to use the appropriate vent material, installation
techniques, glues/sealants could lead to vent failure
causing property damage, personal injury or death.
WARNING
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.
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, CPVC
or stainless steel material is required. If the system
temperatures are unknown at the time of installation,
stainless or CPVC 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, or a stainless steel
venting system that complies with UL 1738 Standard
(see Table 5).
IN CANADA all venting used must meet the
following requirements:
1. ULC-S636 certied and marked
2. The rst 3 feet of venting must be accessible for
visual inspection.
3. All components used in the vent system must be
from a certied manufacturer.
4 . Vent system components must not be mixed
with alternate manufacturers certied
components and/or unlisted components.
5 . The venting must be installed according to the
vent manufacturers installation instructions.
The unit’s vent can terminate through the roof, or
through an outside wall.
See Table 2 to select the appropriate vent pipe
diameter. 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.
INSTALLATIONS IN CANADA require the use
of venting material certied to ULCS636. All Gas
vents connected to the Brute Elite, plastic, stainless
steel or otherwise must be certied to this ULC
standard. Appropriate selection of vent material is
very important for proper performance and safe
operation of the Brute Elite.
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 outlet water temperature
exceeds 145°F, and/or installed in a closet, class IIB
or higher vent material is required. If the system
temperatures are unknown at the time of installation,
class IIB or higher venting material is recommended.
INSTALLATION STANDARDS
MATERIAL UNITED STATES CANADA
Stainless Steel UL 1738 Venting must be ULC-S636 certied for use as
PVC, sch 40 ANSI/ASTM D178 venting material. The venting material must be chosen
CPVC, sch 40 ANSI/ASTM F441 based upon the intended application of the boiler.
Table 5. Required Exhaust Vent Material.
Figure 7. Combustion Air and Vent Through Roof.
Page 10
Bradford White Corp.
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,
hardware and controls to properly balance ue gas
pressures. Do not common vent Brute Elite units
unless the vent system meets this requirement.
Brute Elite units are never permitted to share a vent
with Category I appliances.
3.3 Locating Vent & Combustion Air
Terminals
3.3.1 Side Wall Vent Terminal
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 following when installing the terminal:
1. Figure 9 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 Figure 9 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.
of corrosive chemical fumes (e.g., cleaning uid,
chlorine compounds, etc.)
2. Locate the terminal so that it will not be subject
to 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. For concentric vent, follow instructions
included with vent kit.
5. Multiple vent kits should be installed such that the
horizontal distance between outlet group and inlet
group is 36" (90cm) minimum.
6. Vent outlet must be no lower than the center of
the air inlet, and must be at least 12" (30cm) away
from the air inlet (see Figure 8).
3.3.3 Vertical Vent Terminal
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.
When the combustion air is taken from the roof, the
combustion air must terminate at least 12" (30cm) below
the vent terminal (see Figure 7).
3.3.4 Vertical Combustion Air Terminal
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 7). 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.
3.3.2 Side Wall Combustion Air Terminal
The Bradford White side wall combustion air
terminal, or concentric terminal (see Table 3), must
be used when the heater takes air from a side wall.
Consider the following when installing the terminal (see
Figure 9):
1. Do not locate the air inlet terminal near a source
Figure 8. Minimum Venting Distance.
The Brute Elite 125
U.S. Installations (see note 1) Canadian Installations (see note 2)
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
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 3 feet (91 cm) minimum 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
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 paved Vent termination not allowed in this location Vent termination not allowed in this
driveway located on public property for category IV appliances. location for category IV appliances.
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/CGA-B149 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/CGA-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
specic requirements, and must be consulted.
Page 11
Figure 9. Combustion Air and Vent Through Side Wall.
*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.
Page 12
Bradford White Corp.
3.3.5 Installations in the Commonwealth of
Massachusetts
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
1. Installation of Carbon Monoxide Detectors
At the time of installation of the side wall vented
gas fueled appliance, the installing plumber or
gastter 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 qualied licensed professionals
for installation of hard-wired carbon monoxide
detectors.
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 installation, the owner shall have a period
of thirty (30) days to comply with the above
Optional concentric vent kit sold separately.
Figure 10. Vent Dimensions, 2-Pipe System.
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
permanently 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
horizontally 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.
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
The Brute Elite 125
replace dampers.
4. Place in operation the appliance being inspected.
Follow the lighting instructions. Adjust 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.
Page 13
Page 14
SECTION 4.
Gas Supply and Piping
4.1 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 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.
Bradford White Corp.
Brute Elite NATURAL GAS REQUIRED
SIZE CU FT / HR.
125 125
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.
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.
Table 6A.
EQUIVALENT LENGTHS OF STRAIGHT PIPE FOR TYPICAL SCH 40 FITTINGS
NOMINAL PIPE SIZE
FITTING 1/2" 3/4" 1"
LINEAR FEET
90° ELBOW 3.6 4.4 5.2
TEE 4.2 5.3 6.6
Table 6B.
SCH 40 METAL PIPE CAPACITY FOR 0.60 SPECIFIC GRAVITY NATURAL GAS
NOMINAL PIPE SIZE @ 0.30" W.C. PRESSURE DROP
LENGTH 1/2" 3/4"
FT CUBIC FEET OF GAS PER HOUR
20 92 190
40 130
60 105
80 90
100
Table 6C.
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
appliances 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.
SCHED 40 METAL PIPE CAPACITY FOR 1.50 SPECIFIC GRAVITY
UNDILUTED PROPANE
NOMINAL PIPE SIZE @ 11" W.C. INLET AND 0.5" W.C. PRESSURE DROP
SIZE 1/2" 3/4"
LENGTH MAXIMUM CAPACITY IN THOUSANDS OF BTU PER
HOUR
20 200 418
40 137 287
60 110 231
80 94 197
100 84 175
NOTES: 1. Follow all local and national LP gas codes for line sizing and
equipment requirements. 2. Verify that inlet gas pressure remains between
4 and 13 inches of water column before and during operation.
Source: ANSI Z223.1-80 National Fuel Gas Code.
Table 6D.
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