Bradford White BNTH1000 User manual

Installation and Operation Instructions Document 1266C
H2360900C
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 qualied installer, service agency, or gas
supplier.
FOR YOUR SAFETY: This product must be installed and serviced by a professional service technician,
qualied 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.
AVERTISSEMENT
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 inammables 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 qualié ou
par le fournisseur de gaz.
Installation and
Operation Instructions for
Modulating Boiler Water Heater
Model BNTH1000 Model BNTV1000
1,000 MBTU/h 1,000 MBTU/h
Model BNTH1200 Model BNTV1200
1,200 MBTU/h 1,200 MBTU/h
BruteTM

B RADFORD W HITE
Section 1
GENERAL INFORMATION....................................... 1
1.1 Introduction............................................... 1
1.2 About the Touch Screen ........................... 1
1.3 Safety Notes ............................................. 3
1.4 ModelIdentication/Nomenclature ......... 3
1.5 Warranty ................................................... 4
1.6 BruteComponents.................................... 4
1.7 Dimensions............................................... 5
1.8 Unpacking................................................. 5
Section 2
LOCATING THE APPLIANCE .................................. 6
2.1 LocatingtheAppliance ............................. 6
2.2 Correct Vent Distance
  fromOutsideWallorRoofTermination ..... 6
Section 3
VENTING AND COMBUSTION AIR......................... 7
3.1 CombustionAir ......................................... 7
 3.1.1 CombustionAirFromRoom ..................... 7
 3.1.2 DuctedCombustionAir............................. 8
3.2 Venting...................................................... 9
 3.2.1 CommonVenting ...................................... 9
 3.2.3 VentingRequirementsUniquetoCanada 9
3.3 LocatingtheVentandCombustionAir
  Terminals ................................................ 10
 3.3.1 SideWallVentTerminal .......................... 10
 3.3.2 SideWallCombustionAirTerminal......... 12
 3.3.3 VerticalVentTerminal ............................. 13
 3.3.4 VerticalCombustionAirTerminal ............ 13
 3.3.5 InstallationsintheCommonwealthof
Massachusetts........................................ 13
3.4 CommonVentTest ................................. 13
3.5 Outdoor Installation ................................ 14
3.6 CondensateTrap .................................... 14
Section 4
GAS SUPPLY AND PIPING ................................... 15
4.1 GasSupplyandPiping ........................... 15
  Distance&PipeSize,Tables.................. 16
Section 5
PUMP REQUIREMENTS ....................................... 17
5.1 BruteBoilerFlowandHead
  Requirements ......................................... 17
5.2 BruteWaterHeaterFlowand ....................
  HeadRequirements................................ 17
Section 6
WATER CONNECTIONS ....................................... 18
Section 6A - BNTH Systems................................... 18
6A.1 BNTHSystemPiping:HotSupply
Connections............................................ 18
6A.2 BNTHColdWaterMake-Up ................... 18
6A.3 BNTHFreezeProtection ........................ 19
6A.4 BNTHSuggestedPipingSchematics ..... 19
6A.5 CondensateTrap .................................... 19
Section 6B - BNTV Systems................................... 25
6B.1 BNTV Water Quality ............................... 25
6B.2 BNTVPipingRequirements.................... 25
6B.3 BNTVColdWaterMake-Up.................... 26
6B.4 BNTVFreezeProtection......................... 26
6B.5 BNTVSuggestedPipingSchematics ..... 26
6B.6 BNTVSuggestedPumps........................ 27
6B.7 CondensateTrap .................................... 27
Section 7
ELECTRICAL CONNECTIONS.............................. 28
7.1 MainPower............................................. 28
7.2 PumpConnections ................................. 28
7.3 24VACTransformerwithIntegral
  CircuitBreaker........................................ 30
7.4 SignalConnections................................. 30
7.5 OptionalLowWaterCutOff(LW C O) .... 30
7.6 OtherOptionalFieldConnections .......... 30
7.7 LadderDiagrams .................................... 31
  WiringDiagrams ..................................... 32
Section 8
USING THE TOUCH SCREEN AND GAUGES...... 34
8.1 TheTouchScreenandGaugesontheFront
of the Brute ............................................. 34
8.2 UsingtheTouchScreen.......................... 34
8.3 WhileOperating–CheckingLead/Lag
  OperatingInformation............................. 36
8.4 CheckingLead/LagMaster..................... 36
8.5 WhileOperating-CheckingIndividual
  Parameters ............................................. 37
8.6 CheckingIndividualDetails .................... 38
8.7 ConguringParametersonIndividual
Controllers .............................................. 38
8.8 VericationProcessforSafety-Related
  Parameters ............................................. 39
8.9 OptionalVariableSpeedPumpControl ...... 41
Table of Contents
i

B RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h
Brute
TM
Section9–
SETUP AND CONFIGURATION ............................ 42
9.1 ReviewofLead/LagControlSystem ...... 42
 9.1.1 AboutLead/LagOperation ..................... 42
 9.1.2 Lead/LagModulationCycle .................... 43
 9.1.3 BNTHLead/LagwithIndirect
  DomesticHotWater................................ 44
9.2 ConnectionTerminals ............................. 44
9.3 BruteSystemCongurations................ 44-52
9.4 Installation Jobs...................................... 53
 A NoteforSystemsUsingCommon
  Venting.................................................... 53
 B NamingtheControllers........................... 53
 C MakeOneControltheLead/Lag
Master..................................................... 54
 D DisabletheLead/LagMasterFunction
  ontheLead/LagSlaves.......................... 55
 E SetuptheModbusControlAddressing .. 56
 F SettheFlapValveIDs ............................ 57
 G DisconnectUnusedOperator
Interfaces................................................ 61
 H ConnecttheModbusWiring ................... 61
 I SettheParametersUsedbythe
  Lead/LagSystem.................................... 62
  Aboutthe“TimeofDay”Function........... 66
 J InstalltheSystemSensorandAdjust
  theSetpoint ............................................ 66
 K SettheLead/LagOutdoorResetand
  WarmWeatherShutdown....................... 66
  About“OutdoorReset” ........................... 67
 L BuildingAutomationorMultipleBoiler
  ControlThermostatDemand ................. 68
 M BuildingAutomationorMultipleBoiler
  4-20mASetpointControl ....................... 68
 N BuildingAutomationorMultipleBoiler
  4-20mAModulationControl .................... 69
O Combustion Setup Procedure............. 69
 P SettingtheDateandTimeonthe
  SystemDisplay....................................... 74
9.5 SetupforDomesticHotWaterona
  Lead/LagSystem.................................... 75
SetupType1........................................... 75
SetupType2........................................... 76
SetupType3........................................... 77
9.6 GatewayConnectionstoa
  BuildingAutomationSystem................... 78
9.7 InstallerParameters .......................... 79-85
Section 10 -
INITIAL STARTUP INSTRUCTIONS ...................... 86
10.1 FillingtheBoilerSystem ......................... 86
10.2 InitialBurnerOperation........................... 87
10.3 ShuttingDowntheBrute......................... 87
10.4 RestartingtheBrute................................ 87
Section 11
MAINTENANCE ..................................................... 88
11.1 SystemMaintenance .............................. 88
11.2 Maintenance Notes................................. 88
11.2.1 Burner ..................................................... 88
 11.2.2 ModulatingGasValve/Venturi................ 88
11.2.3 Controllers .............................................. 89
 11.2.4 IgnitorAssembly ..................................... 89
 11.2.5 FlameSensor ......................................... 89
 11.2.6 TransformerwithIntegral
  CircuitBreaker........................................ 89
 11.2.7 Blower..................................................... 90
 11.2.8 HeatExchangerCoils ............................. 90
 11.2.9 GasPressureSwitches(optional) .......... 90
11.2.10Natural/PropaneGasConversion......... 91
 11.2.11 CondensateTrap .................................. 91
 11.2.12 Battery(Date&TimeBack-Up) ............ 91
Section 12
TROUBLESHOOTING ........................................... 92
12.1 PotentialSetupandSynchronization
  Problems ................................................ 92
 12.1.1 ControllerSynchronization ..................... 92
 12.1.2 FlapValveStatusChecks....................... 93
12.2 AboutLockouts,Holds,andAlerts.......... 93
 12.2.1 RespondingtoaLockout,Hold,
or Alert .................................................... 93
 12.2.2 ViewingtheLockoutandAlert
Histories.................................................. 94
12.3 TroubleshootingTables(allcodes)......96-110
12.4 DiagnosticTestsandInput/Output
Indicators ............................................... 111
12.5 Lead/LagSlaveDiagnostics ..................112
12.6 Statistics ................................................112
12.7 Analysis .................................................112
12.8 ControlSnapshot...................................113
12.9 OperatingSequence..............................113
Section 13
REPLACEMENT PARTS.......................................116
13.1 GeneralInformation...............................116
13.2 Parts List................................................116
13.3 Parts Illustrations .................................. 122
ii

B RADFORD W HITE

Page 1
B RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h
Brute
TM
Section 1
GENERAL INFORMATION
1.1 Introduction
This manual includes information which will help you
to install, operate, and maintain the Brute 1000 &
1200 systems. Please read this manual completely
before proceeding with the installation. If you have
any questions regarding this equipment, please
consult the Bradford White factory, or a local factory
representative. Many operating problems are caused
by improper installation.
Pressure and
temperature
gauge
Touch Screen Display
(behind the plastic cover
which slides downward)
Power switch
WARNING
Brute 1000 & 1200 units must be installed
in accordance with the procedures detailed
in this manual, or the Bradford White
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 1000 & 1200 units
must conform to the Standard for Controls
and Safety Devices for Automatically
Fired Boilers, ANSI/ASME CSD-1. Any
modications to the boiler, its gas controls,
or wiring may void the warranty.
If eld conditions require modications, consult
the factory representative before initiating such
modications.
1.2 About the Brute’s
Touch Screen Display
The Brute 1000 & 1200 have an advanced control
system which can perform many functions. This is
part of the reason why the Brute can deliver such
outstanding performance. You can access the
control system using the ‘Touch Screen Display’
(see Section 8). There are several “branches” in the
control software, and many different display screens.
For clarity, throughout this manual we have made a
special effort to show you how to reach each of the
important setup and operating functions. We have
done this in two ways:
• In many cases, we have shown you the actual
touch screen display that you will see while
performing a function.
• Sometimes, instead of showing the screens,
we have just listed the series of choices you
should make in order to reach the section you
want.
The arrangement of the control software is actually
quite logical, and after you have worked with it a bit,
you will not have any problems “nding your way
around.” We just want to give you some help with
the rst part of the process, when you are “getting
used to” the control system .
Later in this manual, we will detail information on the
setup and operating procedures. There are a couple
of concepts you will need to understand right from
the start.
• Each boiler has two controllers (internal
electronic burner controllers) and two burners,
as shown in Figure 1.
• A single Touch Screen is used to communicate
with these two controllers.
Primary
burner
Primary
controller
Gas
valve
Gas
valve
Secondary
controller
Secondary
burner
Touch
Screen
Boiler 1
Figure 1. Control Arrangement in a Single-Boiler

Page 2
B RADFORD W HITE
Installation
• Each controller and burner work together. Each
boiler includes two of these controller/burner
combinations.
Notice the different terms we are using here.
The term boiler refers to the whole appliance –
the complete Brute 1000 & 1200. Each boiler
includes two separate controller/burner pairs.
• Brute 1000 & 1200 units are always set up for
“Lead/Lag” operation. The term “Lead/Lag”
means that, as the heating load increases, the
control system brings additional burners on
automatically.
Touch
Screen
Boiler 1
Slave 4
Boiler 2
Slave 3
Slave 2
Lead Lag
Master and
Slave 1 Slave 6
Boiler 3
Slave 5
Slave 8
Boiler 4
Slave 7
Addr
1
Addr
2
Addr
3
Addr
4
Addr
5
Addr
6
Addr
7
Addr
8
Figure 2. Lead/Lag Arrangement in a Multiple-
Boiler Installation
On a multiple-boiler installation, each of the individual
boilers is still set up as shown in Figure 2 above, but
the controller/burner pairs on all of the boilers are
arranged in a “daisy chain.”
Up to four boilers, with up to eight controller/burner
pairs, can be connected in this way.
In all Brute 1000 & 1200 multiple-boiler installations,
just one of the Touch Screens is active. It can
communicate with all of the controller/burner pairs in
the system, so it displays information from all of the
burners. A single system sensor provides the control
input for the system.
All Brute 1000 & 1200’s that are set up as a single
boiler will still uses a Lead/Lag operation. If the
heating load becomes too great for the rst burner,
the control system automatically starts the second
burner.
To work with this control system, you will need to
understand the difference between two kinds of
control functions:
• SYSTEM FUNCTIONS, Some of the functions
control all of the controller/burner pairs, working
together as part of the Lead/Lag system. As
an example, the setpoint for a whole multiple-
boiler system is set by a single value: “Central
Heat Lead/Lag Setpoint.” By changing this one
value, you change the setpoint used by the
whole system. The action of all of the controller/
burner pairs will refer back to that single value.
On the Touch Screen, from the ‘home’ screen
you can reach all of the Lead/Lag functions by
pressing the View Lead Lag button. Figure 3.
• INDIVIDUAL FUNCTIONS, Other functions
apply only to each separate controller/burner
pair. As an example, each controller/burner has
a name, and this can be changed.
The ‘home’ screen on the Touch Screen will
show icons for each of the controller/burner
pairs connected to the system. To reach one of
the functions for an individual controller/burner,
press the icon for that controller/burner. On the
following screen, press the Congure button.
This will take you to all of the conguration
options for that individual controller/burner.
Figure 3. Going to Lead/Lag and Individual
Functions
Note – For individual functions, if you want to
make a change on all of the controller/burner
pairs in the system, you will have to go to each
controller/burner separately and repeat the
change for each of them. If there are eight
controller/burners in the system, and you want
to make the same change on all of them, go
to each of the eight controller/burner pairs
separately.
As we go through the explanations in this manual,
we will point out whether a control function affects
the whole Lead/Lag system, or just an individual
controller/burner pair.
This has been just a quick introduction, but this
manual includes two longer sections that will help you
to work with the control system:
Press here to
see current
Lead/ Lag
performance
Press here
for individual
controller/
burner pairs
Press here
for Lead/ Lag
setup
Press here for
system setup

Page 3
B RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h
Brute
TM
• Section 8 – “Using the Touch Screen and the
Gauges.”
This section will explain how to “Navigate”
through the Touch Screen : how to enter and
change values, and so on.
• Section 9 – “Setup and Conguration”
The rst part of this section includes a more
complete explanation of the Lead/Lag system.
The rest of the section includes detailed setup
instructions.
If you are not familiar with the control system, the
installation and setup process will go much more
smoothly if you read through these three sections
before beginning work.
1.3 Safety Notes
WARNING
Fire or Explosion Hazard
Improper conguration can cause fuel buildup and
explosion. Improper user operation may result in
property loss, severe physical injury, or death.
Any changes to safety-related conguration parameters
must only be done by experienced and/or licensed
burner/boiler operators and mechanics.
If any odor of gas is detected, or if the gas burner does
not appear to be functioning in a normal manner, close
the main gas shutoff valve. Do not shut off the power
switch. Contact your heating contractor, gas company,
or factory representative.
The Brute is protected against over-pressurization. A
pressure relief valve is included with each Brute 1000 &
1200.
The inlet gas pressure to the appliance must not exceed
13” W.C. (3.2 kPa).
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.
WARNING
Carbon Monoxide Hazard
Improper adjustment of the burners may lead to poor
combustion quality, increasing the amount of carbon
monoxide produced. Excessive carbon monoxide
levels may lead to personal injury or death.
WARNING
Electrical Shock Hazard
Electrical shock can cause severe injury, death or
property damage. Disconnect the power supply before
beginning installation or changing the wiring to prevent
electrical shock or damage to the equipment. It may
be necessary to turn off more than one power supply
disconnect.
All electrical wiring is to be done in accordance with
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.
1.4 ModelIdentication
Consult the rating plate on the unit. The following
information describes the model number structure.
(1-3) Model Series Designation
B N T = Brute
(4) Usage
H = Hydronic
V = Volume Water
(5-8) Size
1 0 0 0 = 1,000,000 BTU/hr input
1 2 0 0 = 1,200,000 BTU/hr input
(9) Fuel
N = Natural Gas
P = LP Gas
(10) Options Code
J = CSD1 Version
X = Standard Unit
(11) Pump Options
X = No pump (conguration available for all sizes)
(12) Revision
1 = First version
Model Nomenclature
SERIES
B N T
USAGE
H - HYDRONIC
V - VOLUME
WATER
SIZE
MBTU/h
1 0 0 0
1 7 0 0
FUEL
N - NATURAL
P - PROPANE
OPTIONS CODE
J- CSD1
X - STANDARD
PUMP OPTIONS
X - NO PUMP
REVISION
1 - FIRST
1 2 3 4 5 6 7 8 9 10 11 12
1
B N T

Page 4
B RADFORD W HITE
1.6 Brute Components
Pressure and
temperature
gauge
Blower 1
(under bezel)
Automatic
gas valves
Manual
gas valve
Blower 2
Touchscreen
Protective Cover
(slides downward)
Power switch Ducted air inlet
Electrical box
PRV and
ow switch
Outlet
temperature
sensors
Inlet
temperature
sensors
Condensate
trap
Leveling feet
1.5 Warranty
Bradford White’s Brute 1000 & 1200 are covered by
a limited warranty. The owner should complete the
warranty registration at:
http://www.BradfordWhite.com
All warranty claims must be made to an authorized
Bradford White representative. Claims must include
the serial number and model. (This information
can be found on the rating plate.) The claim must
also include the 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.
The Touchscreen does have an internal battery for
back-up of the date and time settings. To access the
battery, the front panel and the Touchscreen must
be removed so that the small plastic door on the
back of the touchscreen can be accessed.
The battery is a CR2032 ‘coin type’ battery and
has an expected life of 10 years.
Figure 4. Components

Page 5
B RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h
Brute
TM
Figure 5. Dimensions
1.7 Dimensions
The dimensions are shown in Figure 5
1.8 Unpacking
The Brute is shipped in a single crate. The standard
outdoor/system sensor kit is packed inside the same
crate.
1. Remove all packing and tie-down materials.
2. Check that the outdoor/system sensor kit is
included.
DANGER
• Water temperature over 125°F (52°C) can
cause severe burns instantly or death from
scalds.
• Children, disabled and elderly are at highest
risk of being scalded.
• See instruction manual before
setting temperature at
heating appliance.
• Feel water before
bathing or showering.
• If this appliance is used
to produce water that
could scald if too hot,
such as domestic hot water
use, adjust the outlet
control (limit) or use temperature limiting
valves to obtain a maximum water
temperature of 125°F (52°C).

Page 6
B RADFORD W HITE
Section 2
LOCATING THE APPLIANCE
2.1 Locating the Appliance
The Brute 1000 and 1200’s may be installed indoors
or outdoors. The unit may only be installed outdoors
in a location which will never experience freezing
temperatures. Choose a location for the unit which
allows clearances on all sides for maintenance and
inspection. See Table 1. Always install the unit on a
rm, level surface. Level the unit using the leveling
feet.
The unit 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 this type of location is not available, install a
suitable drain pan, adequately drained, under the
appliance.
The appliance is design-certied by CSA-
International for installation on combustible ooring;
in basements; in closets, utility rooms or alcoves.
Brute 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.
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 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 Correct Vent Distance from
Outside Wall or Roof Termination
The forced draft combustion air blower in the
appliance has sufcient power to vent properly when
the guidelines in Table 2 are followed.
APPLIANCE SUGGESTED SERVICE ACCESS CLEARANCE
SURFACE INCHES CM
Front 24 60.9
Left Side 12 30.5
Right Side 18 45.7
Back 24 60.9
Top 24 60.9
APPLIANCE REQUIRED CLEARANCE TO COMBUSTIBLES
SURFACE INCHES CM
Front 25.1
Left Side 00
Right Side 00
Back 00
Top 820.3
Vent 12.6
Table 1. Clearances
Installations in the U.S. require exhaust vent pipe that is PVC or
CPVC complying with ANSI/ASTM D1785 F441, polypropylene
complying with ULC-S636, or stainless steel complying with
UL1738. Installations in Canada require exhaust vent pipe that is
certied 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,
stainless steel, or galvanized material.
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 (1.5 m) for each elbow used.
STANDARD MAX EQUIV.
VENT FT. M
6” 100 30
Brute
Note - When located on the same wall, the Brute
combustion air intake terminal must be installed a
minimum of 12” below the exhaust terminal. There
must also be a minimum horizontal distance from
intake to the exhaust terminal of 36.”
For the concentric vent terminal kit (optional), follow
the installation instructions included with the kit.
Table 2. Vent / Air Pipe Sizes

Page 7
B RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h
Brute
TM
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. (See the following descriptions.)
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” (300 mm) of the top and
one commencing within 12” (300 mm) 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
Section 3
VENTING AND COMBUSTION AIR
3.1 Combustion Air
Brute 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 1000 & 1200 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.
Table 3a - Horizontal Terminations for Indoor Use
PVC CPVC Stainless Steel Polypropylene
Model Ducted Air Exhaust Ducted Air Exhaust Ducted Air Exhaust Ducted Air Exhaust
1,000 CA008100 CA008300 CA008100 CA008300 CA008200 D2004500 CA008500 CS008500
1,200 CA008100 CA008300 CA008100 CA008300 CA008200 D2004500 CA008500 CS008500
PVC CPVC Stainless Steel Polypropylene
Model Ducted Air Exhaust Ducted Air Exhaust Ducted Air Exhaust Ducted Air Exhaust
1,000 CA008400 CA008300 CA008400 CA008300 CA008500 CA008500 CA008500 CA008500
1,200 CA008400 CA008300 CA008400 CA008300 CA008500 CA008500 CA008500 CA008500
Table 3b - Vertical Terminations for Indoor Use
Table 3. Tables 3 A thru C not linked
Table 3c - Outdoor Terminations
Model Ducted Air Exhaust
1,000 CA008700 CA008900
1,200 CA008700 CA008900
Material United States Canada
ABS ANSI/ASTM D1527 The air pipe material must be chosen based upon
the intended application of the boiler, and must
be installed according to the vent manufacturer’s
installation instructions.
PVC, sch. 40 ANSI/ASTM D1785 or D2665
CPVC, sch. 40 ANSI/ASTM F441
Single wall galv. steel 26 gauge
Polypropylene ULC-S636 Class 2C
Table 4. Required Combustion Air Pipe Material

Page 8
B RADFORD W HITE
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” (300 mm) 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 conned 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/
CSA 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 a horizontal
wall terminal, shown in Table 3a. 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 6).
Use ABS, PVC, CPVC, polypropylene, stainless
steel, or galvanized pipe for the combustion air
intake. (See Table 5.) The intake must 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. The maximum linear
pipe length allowed is 100 feet (39 m). Subtract 5
Figure 6. Combustion Air and Vent Through Roof
Table 5. Required Exhaust Vent Material
Installation Standards
Material United States Canada
Stainless steel UL 1738 Venting must be ULC-S636 certied for use as
venting material. The venting material class must
be chosen based upon the intended application
of the boiler, and must be installed according to
the maximum ue gas temperature and the vent
manufacturer’s instructions.
PVC*, sch 40 ANSI/ASTM D178
CPVC, sch 40 ANSI/ASTM F441
Polypropylene UL-S636 Class 2C
* PVC cannot be used for the rst 12 inches of vent material
allowable linear ft. (1.5 m) for every elbow used.
When using polypropylene or stainless steel
materials in horizontal duct congurations, a single
elbow must be installed on the end of the air inlet
to act as an outdoor terminal. In vertical duct
applications, two elbows must be installed on the
end of the inlet to act as a vent terminal. In both
installation types, Bradford White part number
CA008500 (for Model 1,000 and 1,200) can then be
installed into the elbow to prevent foreign objects
from entering the air inlet system. The elbow(s)
required to complete the vent terminal is not
included.
The connection for the intake air pipe is on the back
panel.
*
*
*
**
*
* In Canada, refer to CAN/CSA B199.1

Page 9
B RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h
Brute
TM
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.
3.2 Venting
WARNING
Selection of improper vent materials for installations
that are installed in closets, or will be operated
in high ambient temperature levels, may lead to
property damage, personal injury, or death.
WARNING
A 12” or 305 mm section of CPVC must be
connected directly to the boiler before a PVC vent
system can be used. Connecting PVC directly to the
boiler’s ue collar may cause vent failure, leading to
property damage, personal injury, or death.
WARNING
Failure to use the appropriate vent material,
installation techniques, or glues and 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changes
dramatically with changes in operating water
temperature. Therefore, it is necessary to assess
the application of the boiler to determine the
requiredcertiedventclass.IftheBruteis
installed in an application where the ambient
temperature is elevated, and/or installed in
a closet/alcove, CPVC, polypropylene, or
stainless steel material is required. If the
system temperatures are unknown at the time of
installation, class IIC or higher venting material
is recommended.
The Brute is a Category IV appliance and may be
installed with PVC, CPVC that complies with ANSI/
ASTM D1785 F441, or polypropylene that complies
with ULC-S636 Class 2C, or a stainless steel venting
system that complies with the UL 1738 Standard.
(See Table 5.) The unit’s vent can terminate through
the roof, or through an outside wall.
The use of polypropylene vent material has
been accepted by CSA for use with exhaust and
combustion. The polypropylene vent manufacturer
shall have ULCS636 Class 2C approval or higher
with a recognized listing agency for all components
used in the venting system. All components used
must be from the same manufacturer and designed
for use with exhaust temperatures of 195°F
(90°C) or higher. When installing polypropylene
vent systems, please, refer to the vent supplier’s
installation instructions for proper installation
techniques.
When using PVC/CPVC for the vent material, the
rst 12 inches or 305 mm of vent must be connected
to the CPVC section included with the Brute. The
CPVC vent section included with the Brute 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
from the same manufacturer and UL-S636 rated.
All installations must be done following the vent
supplier’s recommended installation techniques. If
these are not available, refer to the Bradford White
recommendations for the material used.
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 to drain.
Route the vent pipe to the heater as directly as
possible. Seal all joints. 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.
3.2.1 Common Venting
A single vent that is shared by multiple Brute’s must
be engineered by a competent venting specialist,
and could involve the selection of draft inducing
equipment, hardware and controls to properly
balance ue gas pressures. Do not common
vent Brute’s unless the vent system meets this
requirement. Brute’s are never permitted to
share a vent with Category I appliances.
3.2.2 Venting Requirements Unique to
Canada
Brute 1000 & 1200 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 certied stainless steel or other
ULC S636 certied BH vent (eg. plastics) must
be installed per the vent manufacturer’s certied
installation instructions.

Page 10
B RADFORD W HITE
It is the responsibility of the appropriately licensed
technician installing this Brute to use ULC
S636 certied 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.
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 classied 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
Flue Gas Sampling Port -
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: within 2 feet
of the ue connection. There is no ue gas sampling
port internal to the Brute, so one must be installed
in the vent system external to the Brute. A ue gas
sampling port available as a component of the ULC
S636 certied vent system is preferred. However, if
one is not available with the certied 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 means to ensure the
vent system remains sealed. (See Figure 7.)
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
and not collect anywhere in the vent system -
including in the ue gas sampling port.
Exhaust Vent Terminal -
An exhaust vent terminal must be installed. If an
exhaust vent terminal is not available with the
certied vent system, Bradford White suggests
the use of a coupler tting from the certied vent
system into which the vent terminal screen can be
installed. Be sure to install and terminate both vent
and combustion air pipes per the instructions in this
section.
3.3 Locating the Vent and 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 8 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,
Figure 7. Test Port

Page 11
B RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h
Brute
TM
*When vent terminal is less than 10 feet (3 m) horizontally
from a forced air inlet, the terminal must be at least 3 feet
(0.9 m) above the air inlet. (US only)
Figure 8. Combustion Air and Vent Through Side Wall
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 (30 cm); 36 inches (91 cm)
opened Other than Direct vent: 4 ft (1.2m) below or to
side of opening; 1 ft (30 cm) above opening
C= Clearance to permanently closed window See note 4 See note 5
D= Vertical clearance to ventilated soft located
above the terminal within a horizontal See note 4 See note 5
distance of 2 feet (61 cm) from the center
line of the terminal
E= Clearance to unventilated soft 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: 36” (91cm)
inlet to building or the combustion air inlet Other than Direct vent: 4 ft (1.2m) below 36 inches (91 cm)
to any other appliance or to side of opening; 1 ft (30 cm) 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 7 ft (2.1 m)
driveway located on public property for category IV appliances. See note 5
M= Clearance under veranda, porch, deck, See note 4 12 inches (30 cm)
or balcony See note 5
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 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 specied 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 specied in CAN/CSA-B149, clearance is in accordance with local installation codes and the requirements of the
gas supplier.
6. IMPORTANT: All terminals must be placed so that they remain a minimum 12” above expected snow line. Local codes may have
more specic requirements, and must be consulted.

Page 12
B RADFORD W HITE
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 10 and 11 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.
3.3.2 Side Wall Combustion Air Terminal
The Bradford White side wall combustion air terminal
must be used when the heater takes air from a side
wall. (See Figure 9.) Contact Bradford White for
AL29-4C termination ttings. Consider the following
when installing the terminal. (See Figure 9 and
Figure 10).
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 damage by accident or vandalism. It must be
at least 7 feet ( 2.1 m) 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
(30 cm) above grade, but the installer may
determine it should be higher, depending upon
local conditions.
4. If the Brute is side-wall vented to the same wall,
locate the vent terminal at least 1 foot (0.3 m)
above the combustion air terminal.
5. Multiple vent kits should be installed such that
IMPORTANT: All terminals must be placed so that they remain at least
12” above the expected snow line. Local codes may have more specific
requirements, and must be consulted. Refer to the NFPA54 National Fuel
Gas Code and your local codes for all required clearances for venting.
Figure 9. Multiple Side-Wall
Terminals, Air and Vent
Figure 10. Minimum Venting Distance

Page 13
B RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h
Brute
TM
the horizontal distance between outlet group
and inlet group is 36” (90 cm). (See Figure 10.)
6. The vent outlet must be at least 12” above the
top of the air inlet, and must be at least 36” (90
cm) horizontally from the air inlet.
3.3.3 Vertical Vent Terminal
When the unit is vented through the roof, the vent
must extend at least 3 feet (0.9 m) above the point
at which it penetrates the roof. It must extend at
least 2 feet (0.6 m) higher than any portion of a
building within a horizontal distance of 10 feet (3.0
m), and high enough above the roof line to prevent
blockage from snow. The vent terminal offered with
the Brute 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” (30 cm) below the vent terminal.
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. The opening on
the end of the terminal must be at least 12” (30 cm)
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” (30 cm)
below the vent terminal.
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 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 gastter 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.
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 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 certied.
3. Signage
A metal or plastic identication 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 inspec-
tion, 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’s. It describes what must be
done when a unit is removed from a common vent
system. Brute’s require special vent systems and
fans for common vent. Contact the factory if you
have questions about common venting Brute’s.
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.

Page 14
B RADFORD W HITE
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 or
other deciencies which could cause an unsafe
condition.
3. As much as possible, close all building doors
and windows. Also close 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 any clothes dryers or other appliances 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 any 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 ve 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 the doors, windows, exhaust fans,
replace dampers and any other gas burning
appliances to their previous conditions of use.
7. Any improper operation of the common venting
system should be corrected so that the instal-
lation 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 vent-
ing system should be resized to approach the
minimum size as determined using the appropri-
ate tables and guidelines in the National Fuel
Gas Code, ANSI Z223.1 NFPA 54 and/or CSA
B149.1, Installation Codes.
3.5 Outdoor Installation
The Brute 1000 & 1200’s may only be installed
outdoors in applications where the outdoor
temperature doesn’t drop below freezing. For proper
operation in outdoor installations, the boiler must
be equipped with the inlet air and exhaust terminal
kits listed in Table 3C. The bottom panel cover
plate must be removed. Additional instructions are
supplied with the terminal kits.
3.6 Condensate Drain Trap
A condensate drain trap is included with the Brute
and is designed to drain the boiler of condensate.
The vent condensate should be drained through
a drain tee located in the vent line. This will help
prevent excessive condensate from entering the
boiler condensate trap and preventing the boiler
from operating.
Connect a 3/4” PVC pipe between the drain
connection and a oor drain (or condensate pump if
a oor drain is not accessible).
The condensate drain must be installed to
prevent the 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 disposal method.
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. Damage caused by failure to
install a neutralizer kit or to adequately treat
condensate will not be the manufacturer’s
responsibility.

Page 15
B RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h
Brute
TM
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.
Installers should refer to local building and safety
codes or, in the absence of such requirements,
follow the National Fuel Gas Code, ANSI Z223.1
NFPA 54 and/or CSA B149.1, Installation Codes.
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. The
Brute 1000 & 1200 will function properly
without the use of high altitude modication at
elevations up to 10,000 feet (3050 m).
2. The maximum inlet gas pressure must not
exceed 13” W.C. (3.2 kPa). The minimum inlet
gas pressure is 4” W.C. (1.0 kPa).
3. Refer to Tables 6A, 6B, 6C and 6D to size the
piping.
4. Run the 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 the action of liqueed
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
(3.45 kPa).
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 (3.45 kPa).
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 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 ob-
structed gas supply line. Some Brute’s 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
B RADFORD W HITE
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” 1” 1-1/4” 1-1/2” 2”
LENGTH MAXIMUM CAPACITY IN THOUSANDS OF BTU PER
HOUR
20 200 418 787 1616 2422 4664
40 137 287 541 1111 1664 3205
60 110 231 434 892 1337 2574
80 94 197 372 763 1144 2203
100 84 175 330 677 1014 1952
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 - Pipe Capacity for Propane
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
Table 6B - Equivalent Pipe Lengths
Brute 1000 & 1200
NATURAL GAS
REQUIRED
CU FT
SIZE / HR.
1000 1000
1200 1200
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 conrm 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 - Natural Gas Requirements
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” 1” 1-1/4” 1-1/2” 2”
FT CUBIC FEET OF GAS PER HOUR
20 92 190 350 730 1100 2100
40 130 245 500 760 1450
60 105 195 400 610 1150
80 90 170 350 530 990
100 150 305 460 870
Table 6C - Pipe Capacity for Natural Gas
Table 6. Gas requirements