Bradford-White BWCV User Manual
Internet Version for Reference Only
Installation and Operation Instructions Document 2142
C O R P O R A T I O N
B W
RADFORD HITE
®
Installation and Operation
Instructions for
Copper Brute II
Water Heater
Model BWCV
U.S. Reg. 2,765,423
FOR YOUR SAFETY: This product must be installed and serviced by a professional service technician,
qualied in hot water boiler 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. For indoor installations, as an additional
measure of safety, Bradford White strongly recommends installation of suitable Carbon Monoxide
detectors in the vicinity of this appliance and in any adjacent occupied spaces.
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
H2316900-
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Copper Brute II
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Bradford White
TABLE OF CONTENTS
SECTION 1. General Information
1.1 Introduction ........................................................ 3
1.2 Model Identication............................................ 3
1.3 Warranty ............................................................ 4
1.4 Dimensions ........................................................ 4
1.5 Locating the Appliance ...................................... 4
1.6 Locating Pump-Mounted Water Heater
with Respect to Storage Tank(s) ....................... 6
1.7 Locating Appliance for Correct Horizontal Vent/
Ducted Air Distance From Outside Wall ............ 6
SECTION 2. Venting and Combustion Air
2.1 Combustion Air .................................................. 6
2.1.1 Combustion Air From Room .............................. 6
2.1.2 Intake Combustion Air ....................................... 7
2.2 Venting............................................................... 8
2.2.1 Vent Categories ................................................. 8
2.2.2 Category I Vent.................................................. 8
2.2.3 Common Venting Systems ................................ 8
2.2.4 Category III Vent................................................ 8
2.3 Locating Vent & Combustion Air Terminals ..... 10
2.3.1 Side Wall Vent Terminal .................................. 10
2.3.2 Side Wall Combustion Air Terminal ................. 10
2.3.3 Vertical Vent Terminal ..................................... 11
2.3.4 Vertical Combustion Air Terminal .................... 11
2.4 Common Vent Test ......................................... 11
2.5 Vent Terminals for Outdoor Units .................... 11
SECTION 3. Gas Supply and Piping
3.1 Gas Supply and Piping .................................... 12
SECTION 4. Water Connections – Copper
Brute II Water Heater
4.1 Water System Piping – Water Heater.............. 13
4.2 Hot Water Supply Piping – Water Heater ........ 13
4.3 Water Flow Requirements – Water Heater...... 13
4.4 Combined Water Heating (potable)
and Space Heating – Water Heater................. 18
4.5 Freeze Protection – Water Heater ................... 18
SECTION 5. Electrical Connections
5.1 Main Power...................................................... 18
5.2 Temperature Control ....................................... 18
5.2.1 Temperature Control Description..................... 18
5.3 External Staging Control Wiring....................... 19
SECTION 6. Operating Instructions
6.1 Sequence of Operation.................................... 20
6.2 Programming the Temperature Control ........... 20
6.2.1 System Piping.................................................. 21
6.2.2 Choosing the Mode.......................................... 21
6.2.3 Programming ................................................... 21
6.2.4 Choosing the Mode for your Application.......... 24
6.3 Advanced Topics ............................................. 25
6.3.1 Differential:....................................................... 26
6.3.2 Staging Mode................................................... 26
6.3.3 Boiler Minimum (BOIL MIN)............................. 26
6.3.4 Boiler Maximum (BOIL MAX)........................... 27
6.3.5 Boiler Target Temperature............................... 27
6.3.6 Pump Operation............................................... 27
6.3.7 Set point Operation ......................................... 27
6.3.8 Dedicated Domestic Hot Water ....................... 27
6.3.9 Outdoor Reset Operation................................. 28
6.3.10 External Heater Operation............................. 28
6.3.11 Limit Controls ................................................ 29
6.3.12 Advanced Programming Mode...................... 29
6.4 Operating the Burner and Set Up .................... 29
6.4.1 Set Up for 0 to 2500 Feet Altitude ................... 29
6.4.2 High Altitude Adjustment and Set Up .............. 30
6.5 Shutting Down the Copper Brute II .................. 30
6.6 To Restart the Copper Brute II......................... 30
SECTION 7. Maintenance
7.1 System Maintenance ....................................... 30
7.2 Appliance Maintenance and
Component Description ................................... 31
7.2.1 Burners ............................................................ 32
7.2.2 Filter................................................................. 32
7.2.3 Gas Valves ...................................................... 32
7.2.4 Manual Reset High Limit Control ..................... 32
7.2.5 Automatic Reset High Limit Control................. 32
7.2.6 Temperature Control........................................ 32
7.2.7 Ignition Controls............................................... 32
7.2.8 Ignitors ............................................................. 32
7.2.9 Ignition Sensors ............................................... 33
7.2.10 Transformer................................................... 33
7.2.11 Blowers.......................................................... 33
7.2.12 Flow Switch ................................................... 33
7.2.13 Heat Exchanger Coil ..................................... 33
SECTION 8. Trouble Shooting
8.1 Resolving Lockouts.......................................... 34
8.2 Delayed Ignition – Possible Causes ................ 34
8.3 Short Cycling ................................................... 34
8.4 High Gas Consumption.................................... 34
8.5 Troubleshooting the Temperature Control....... 34
8.6 Troubleshooting Copper Brute II Controls ....... 36
SECTION 9. Wiring Diagrams
Ladder Diagrams................................................. 37-39
Wiring Schematics............................................... 40-41
Field Wiring.......................................................... 42-44
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Copper Brute II
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SECTION 1.
General Information
In the Commonwealth of Massachusetts, this
appliance must be installed by a licensed plumber or
gas tter.
WARNING
The Copper Brute II water heater must be installed
in accordance with the procedures detailed in
this manual, or the Bradford White warranty
may 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 the Natural Gas
and Propane Installation Code, CSA B149.1 and/
or local codes. Where required by the authority
having jurisdiction, the installation of Copper Brute
II appliances must conform to the Standard for
Controls and Safety Devices for Automatically Fired
Boilers, ANSI/ASME CSD-1. Any modications to
the heater, its gas controls, or wiring may void the
warranty. If eld conditions require modications,
consult the factory representative before initiating
such modications.
1.1 Introduction
This manual provides information necessary
for the installation, operation, and maintenance of
the Bradford White Copper Brute II heaters. Read it
carefully before installation.
All application and installation procedures
should be reviewed completely before proceeding
with the installation. Consult the Bradford White
factory, or local factory representative, with any issues
or questions regarding this equipment. Experience
has shown that most operating issues are caused by
improper installation.
The Copper Brute II is protected against over
pressurization. A pressure relief valve is tted to all
appliances. It is installed on the outlet header, at the
water outlet of the appliance.
IMPORTANT: The inlet gas pressure to the appliance
must not exceed 13" W.C. (3.2kPa).
All installations must be made in accordance with:
1) In the U.S., the " National Fuel Gas
Code"ANSI Z223.1/NFPA54, Latest Edition and all
applicable local codes as required by the Authorities
Having Jurisdiction (AHJ), or
2) In Canada, the "Natural Gas and Propane
Installation Code", CSA B149.1, latest edition and all
applicable local codes as required by the AHJ.
All electrical wiring is to be done in accordance with:
1). In the U.S., the "National Electrical Code"
(NEC), ANSI/NFPA 70, latest Edition and all
applicable local codes as required by the AHJ, or
2). In Canada, the “Canadian Electrical Code
- Part 1”, CSA STD. C22.1 and all applicable local
codes as required by the AHJ.
This appliance must be electrically grounded in
accordance with the applicable codes and standards
referenced above.
1.2 Model Identication
Consult the rating plate on the unit. The
following information describes the model number
structure.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
B W C V A 2
SERIES
B W C
USAGE
V
SIZE
0 5 0 0
0 7 5 0
1 0 0 0
1 2 5 0
1 5 0 0
1 7 5 0
2 0 0 0
FUEL
N
P
ALTITUDE
A
LOCATION
I
E
FIRING
MODE
K (500/750)
N (1000)
L (1250-2000)
REVISION
2
HEAT
EXCHANGER
B
C
K
N
P
S
OPTIONS
CODE
X
J
L
PUMP
OPTIONS
X
H
N
S
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Copper Brute II
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Bradford White
Model Character Designation
1-3 Model Series Designation
B W C = Copper Brute II
4 Usage
V = Volume Water
5-8 Size
0 5 0 0 = 500,000 BTU/h input
0 7 5 0 = 750,000 BTU/h input
1 0 0 0 = 999,000 BTU/h input
1 2 5 0 = 1,250,000 BTU/h input
1 5 0 0 = 1,500,000 BTU/h input
1 7 5 0 = 1,750,000 BTU/h input
2 0 0 0 = 1,999,000 BTU/h input
9 Fuel
N = Natural Gas
P = Propane
10 Altitude
A = 0-10,000 feet
11 Location
I = Indoor
E = Outdoor
12 Firing Mode
K = Two-stage (models 500 & 750)
N = Three-stage (model 1000)
L = Four-stage (models 1250 - 2000)
13 Revision
2 = Second version
14 Heat Exchanger
B = Glass-lined CI / copper / brz trim (std. BWCV)
C
= Glass K = Bronze / copper
N = Glass-lined cast iron / cu-nickel
P = Glass-lined cast iron / cu-nickel / brz trim
S = Bronze / cu-nickel
15 Option Code
X = Standard unit
J = CSD-1, FM, IRI, IL
L = MN and LDS (Indoor units only)
16 Pump Options
X = No Pump
H = Pump mounted, hard water pump
N = Pump mounted, normal pump
S = Pump mounted, soft water pump
lined cast iron / copper
Some accessory items are shipped in separate
packages. Verify receipt of all packages listed on
the packing slip. Inspect everything for damage
immediately upon delivery, and advise the carrier of
any shortages or damage. Any such claims should be
led with the carrier. The carrier, not the shipper, is
responsible for shortages and damage to the shipment
whether visible or concealed.
1.4 Dimensions
See Figure 1.
1.5 Locating the Appliance
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 CSAInternational for installation on combustible ooring;
in basements; in closets, utility rooms or alcoves.
Copper Brute II Water Heaters 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 heater
must be located as close as practical to a chimney or
outside wall. 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.
The dimensions and requirements that are shown
in Table 2 should be met when choosing the locations
for the heater.
1.3 Warranty
Bradford White’s Copper Brute II heaters are
covered by a limited warranty. The owner should
ll out the warranty registration card and return it to
Bradford White.
All warranty claims must be made to an
authorized Bradford White representative or directly
to the factory. Claims must include the serial number
and model (this information can be found on the rating
plate), installation date, and name of the installer.
Shipping costs are not included in the warranty
coverage.
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Copper Brute II
F
W
2
5
LEFT SIDE VIEW
PUMP
FRONT VIEW
13.7
35
B
C
W*
V*
10
25
A
12.4
31
H
W* V*
TO
P VIEW
FLOW SWITCH
INLET
OUTLET
PUMP
REAR VIEW
D
C
B
E
V* W*
G
V
19.7
50
41.5
105
35.3
89
13.7
35
29.3
74
13.8
35
7.75
20
RIGHT SIDE VIEW
Page 5
Shipping Weight
Size lbs. kg
500 425 193
750 505 229
1000 615 279
1250 675 306
1500 760 345
1750 825 375
Air Vent Horiz.
A B C D E F G H Conn. Conn. Vent
Size in cm in cm in cm in cm in cm in cm in cm in cm W V Pipe
500 33 85 15 40 5 15 29 76 32 83 7 20 8 22 46 117 6 15 6 15 6 15
2000 955 434
*Add 55 lbs. (25kg) for pump-
mounted units.
750 45 116 21 55 5 15 29 76 32 83 7 20 8 22 58 147 6 15 8 20 6 15
1000 57 146 28 73 5 15 29 76 32 83 7 20 7 18 70 178 8 20 10 25 8 20
1250 68 172 34 86 101/
1500 78 199 39 101 101/
8
26 30 78 29 75 8 22 8 22 80 203 8 20 12 30 8 20
8
26 30 78 29 75 8 22 8 22 91 231 8 20 12 30 8 20
1750 89 226 44 113 101/8 26 30 78 29 75 8 22 8 22 101 256 8 20 14 36 8 20
2000 99 253 49 126 101/8 26 30 78 29 75 8 22 8 22 112 284 12 30 14 36 12 30
*Air and vent connections may be on top or back of the heater, and are eld convertible. Dimensions in inches cm.
Figure 1. Dimensional Data.
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Horizontal Air Collar
Heater Vent Collar Vent Pipe & Pipe Max. Pipe Max. No. Side Wall Side Wall
Size Size Diameter Diameter Length of Elbows Vent Combustion
Terminal Air Terminal
in. cm in. cm in cm ft. m Part Number Part Number
500 6 15 6 15 6 15 50 15 3 CA001401 20260701
750 8 20 6 15 6 15 50 15 3 CA001401 20260701
1000 10 25 8 20 8 20 50 15 3 CA001402 20260703
1250 12 30 8 20 8 20 50 15 3 CA001403 20260703
1500 12 30 8 20 8 20 50 15 3 CA001403 20260703
1750 14 36 8 20 8 20 50 15 3 CA001403 20260703
2000 14 36 12 30 12 30 50 15 3 CA001404 20260706
Table 1. Horizontal Vent / Combustion Air Parameters.
Appliance Clearance From Service Access
Surface Combustible Material Clearance
inches cm inches cm
Left Side 1 2.5 24 61
Right Side 1 2.5 24 61
Top 1 2.5 12 30
Back 1 2.5 **12** 30**
Front 1 2.5 36 91
Vertical
(Category 1) 6* 15.2*
Vent
Horizontal per UL1738 venting
(Category 3) system supplier’s
Vent instructions
*1" (2.5cm) when b-vent is used.
**When vent and/or combustion air connects to the back,
recommended clearance is 36" (91cm).
Required Recommended
Bradford White
NOTE: When located on the same wall, the
combustion air intake terminal must be installed
a minimum of 12" (30cm) below the exhaust vent
terminal and separated by a minimum of 36 inches
(91cm) horizontally.
The air intake terminal must be installed high
enough to avoid blockage from snow, leaves and other
debris.
SECTION 2.
Venting and Combustion Air
2.1 Combustion Air
Copper Brute II water heaters must have
provisions for combustion and ventilation air in
accordance with section 5.3, Air for Combustion and
Ventilation, of the National Fuel Gas Code, ANSI
Z223.1, or Sections 7.2, 7.3 or 7.4 of CSA B149.1,
Table 2. Clearances.
Installation Codes, or applicable provisions of the local
building codes.
1.6 Locating Pump-Mounted Water Heater
with Respect to Storage Tank(s)
For best results, a pump-mounted water heater
should be located within 15 feet (4.6m) of the storage
tank(s). The pump is sized for 30 feet (9.1m) of piping.
If the heater must be installed with longer piping
runs, then larger diameter pipe or tubing shall be used.
Consult the factory for assistance.
1.7 Locating Appliance for Correct
Horizontal Vent/Ducted Air Distance
From Outside Wall
The forced draft combustion air blower/blowers
in the appliance has/have sufcient power to pull air
and vent properly when the following guidelines for
horizontal air and vent are followed (see Table 1).
NOTE: On models 750-2000, the vent collar size is
larger than the size of the vent pipe that can be used.
Vent collar size and horizontal pipe diameters can
be found in Table 1. The larger vent collar size is to
accommodate Category I (vertical) vent systems.
A Copper Brute II heater may receive
combustion air from the space in which it is installed,
or it can be ducted directly to the unit from the outside.
Ventilation air must be provided in either case.
2.1.1 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 inches (30 cm) of the top
and one commencing within 12 inches (30 cm) 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 (5.5 square cm/kW) of total input rating of all
equipment in the enclosure. When communicating to
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the outdoors through horizontal ducts, each opening
shall have a minimum free area of not less than
1 square inch per 2000 Btu/hr (11 square cm/kW) of
total input rating of all equipment in the enclosure.
Table 3 shows data for this sizing method, for each
Copper Brute II model.
Method 2: One permanent opening, commencing
within 12 inches (30 cm) 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 (7 square cm/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 CSA
B149.1.
Each Opening*
Model Square inches Square cm
500 125 807
750 188 1213
1000 250 1613
1250 313 2020
1500 375 2420
1750 438 2826
2000 500 3226
*Net Free Area in Square Inches / Square cm
Area indicated is for one of two openings; one at oor level and
one at the ceiling, so the total net free area could be double the
gures indicated.
This chart is for use when communicating directly with the
outdoors. For special conditions and alternate methods, refer to
the latest edition of ANSI Z223.1.
Note: Check with louver manufacturers for net free area of
louvers. Correct for screen resistance to the net free area
if a screen is installed. Check all local codes applicable to
combustion air.
directly as possible. Seal all joints with tape. Provide
adequate hangers. The unit must not support the
weight of the combustion air intake pipe. Maximum
linear pipe length allowed is 50 feet (15.2m). Three
elbows have been calculated into the 50-foot (15.2m)
linear run. Subtract 10 allowable linear feet (3.0m) for
every additional elbow used (see Table 1). When fewer
than 3 elbows are used, the maximum linear pipe
length allowed is still 50 feet (15.2m).
Term Description
minimum (either insulated or non-insulated)
Joint
Sealing
Single-wall galvanized steel pipe, 24 gauge
Pipe
Permanent duct tape or aluminum tape
Table 4. Required Combustion Air Piping Material.
The connection for the intake air pipe is on
the lter box. The heaters may have venting and
combustion air ducting attached to the top or the back.
They are shipped with the connections at the top. For
attaching either or both pipes to the back, the mounting
anges are reversible by removing the mounting
screws and orienting the anges in the desired
position. Replace the screws after positioning anges.
Run a bead of silicone around the collar and slide the
pipe over the collar. Secure with sheet metal screws.
In addition to air needed for combustion, air
shall also be supplied for ventilation, including all air
required for comfort and proper working conditions
for personnel. The Copper Brute II loses less than 1
percent of its input rating to the room, but other heat
sources may be present.
Table 3. Combustion Air Openings.
2.1.2 Intake 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 (see Table 1).
When taken from the roof, a eld-supplied rain cap or
an elbow arrangement must be used to prevent entry of
rain water (see Figure 2).
Use single-wall galvanized pipe, per Table
4, for the combustion air intake (see Table 1 for
appropriate size). Route the intake to the heater as
Figure 2. Combustion Air and Vent Through Roof.
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Bradford White
2.2 Venting
2.2.1 Vent Categories
Depending upon desired Copper Brute II venting,
it may be considered a Category I or a Category III
appliance. In general, a vertical vent system will
be a Category I system. However, in rare instances,
a Copper Brute II vertical vent system may be
considered Category III. In the U.S., the National Fuel
Gas Code (ANSI Z223.1-Latest Edition), or in Canada
the CSA B149.1 (latest edition), denes a Category
I vent system, and includes rules and tables to size
these vent systems. If the Copper Brute II vertical
vent system does not satisfy the criteria for Category I
venting, it must be vented as a Category III system.
All Copper Brute II vent systems which
discharge horizontally (without the use of a power
venter) are considered Category III vent systems.
2.2.2 Category I Vent
When vented as a category I appliance, the
vent system must conform to the National Fuel Gas
Code (ANSI Z223.1-Latest Edition) in the U.S., or
in Canada, to CSA B149.1 (latest edition). The vent
system must be sized and installed for a Category I
Fan-Assisted Appliance.
If chimney height is greater than 25 feet, or
if multiple units are vented into the same vertical
vent, a barometric damper must be installed on each
appliance, such that the ue draft does not exceed
(negative) 0.1" w.c.
If using a power venter for any type of Category
I venting, the draft should be set between (negative)
0.01 and 0.10" w.c.
2.2.3 Common Venting Systems
Copper Brute II heaters are Category I fanassisted when vented vertically and adhering to all
applicable codes. Copper Brute II heaters are not
allowed to be vented into a common horizontal vent
system, unless a properly sized vent fan is used, and
the common vent system is properly designed by the
vent fan manufacturer or a qualied engineer. When
common venting Copper Brute II fan-assisted unit
with other appliances through one shared vertical duct
called a “common vent”, special care must be taken by
the installer to ensure safe operation. In the event that
the common vent is blocked, it is possible, especially
for fan-assisted devices, to vent backwards through
non-operating appliances sharing the vent, allowing
combustion products to inltrate occupied spaces.
If the appliances are allowed to operate in this
condition, serious injury or death may occur.
WARNING
Operation of appliances with a blocked common
vent may lead to serious injury or death. Safety
devices must be implemented to prevent blocked
common vent operation. If safe operation of all
appliances connected to a common vent cannot
be assured, including prevention of spillage of ue
gasses into living spaces, common venting should
not be applied, and appliances should each be
vented separately.
It is for this reason that, in addition to
following proper vent sizing, construction and safety
requirements from the National Fuel Gas Code,
ANSI Z223.1 or in Canada, from CSA B149.1 as
well as all applicable local codes, it is required that
installers provide some means to prevent operation
with a blocked common vent. It is suggested that a
blocked vent safety system be employed such that if
the switch from one appliance trips due to excessive
stack spill or back pressure indicating a blocked vent
condition, that all appliances attached to the vent be
locked out and prevented from operating. Note that
the Copper Brute II is equipped with a blocked vent
safety (pressure) switch, as shipped. However, this
safety switch has only been designed and tested to be
effective in installations where the Copper Brute II
is vented separately and NOT common vented with
other appliances. As an additional precaution, it is
recommended that a Carbon Monoxide (CO) alarm be
installed in all enclosed spaces containing combustion
appliances. If assistance is required in determining
how a blocked vent safety system should be connected
to a Bradford White product, please call the Bradford
White Service Department at (800) 334-3393. Refer
to the installation and operating instructions on all
appliances to be common vented for instructions,
warnings, restrictions and safety requirements. If safe
operation of all appliances connected to a common
vent cannot be assured, including prevention of
spillage of ue gasses into living spaces, common
venting should not be applied, and appliances should
each be vented separately.
2.2.4 Category III Vent
When the Copper Brute II is vented with
horizontal discharge, it must be installed per
this installation manual and the venting system
manufacturer’s installation instructions. The vent
system must be sealed stainless steel, per Table 5.
Route the vent pipe to the heater as directly as
possible. Seal all joints and provide adequate hangers
as required in the venting system manufacturer’s
Installation Instructions. Horizontal portions of the
venting system must be supported to prevent sagging
and may not have any low sections that could trap
condensate. The unit must not support the weight of
Internet Version for Reference Only
Copper Brute II
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
B= Clearance to window or door that may be 4 feet (1.2 m) below or to side of opening; 36 inches (91 cm)
opened 1 foot (30 cm) above opening
C= Clearance to permanently closed window See note 4 See note 5
D= Vertical clearance to ventilated soft located
above the terminal within a horizontal See note 4 See note 5
distance of 2 feet (61cm) from the center
line of the terminal
E= Clearance to unventilated soft See note 4 See note 5
F= Clearance to outside corner See note 4 See note 5
G= Clearance to inside corner See note 4 See note 5
H= Clearance to each side of center line 3 feet (91 cm) within a height 15 feet above
extended above meter/ regulator assembly See note 4 the meter/ regulator assembly
I= Clearance to service regulator vent outlet See note 4 3 feet (91 cm)
J= Clearance to non mechanical air supply inlet
to building or the combustion air inlet to 4 feet (1.2 m) below or to side of opening; 36 inches (91 cm)
any other appliance 1 foot (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
Vent termination not allowed in this location
Vent termination not allowed in this location for category IV appliances. A vent shall not
L= Clearance above paved sidewalk or paved for category IV appliances. For Category III terminate directly above a sidewalk or paved
driveway located on public property appliances, vent must terminate at least 7 driveway that is located between two single
feet (2.13m) above the sidewalk or driveway. family dwellings and serves both dwellings.
For Category III appliances that do not violate
the previous condition, vent must terminate
at least 7 feet (2.13m) above the sidewalk or
driveway.
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 CSA-B149.1 Installation Codes.
3. Permitted only if veranda, porch, deck, or balcony is fully open on a minimum of two sides beneath the oor.
4. For clearances not specied in ANSI Z223.1 / NFPA 54, clearance is in accordance with local installation codes and the requirements of
the gas supplier.
5. For clearances not specied in CSA-B149.1, clearance is in accordance with local installation codes and the requirements of the gas
supplier.
Page 9
Figure 3. Combustion Air and Vent Through Side Wall.
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Copper Brute II
Page 11
Bradford White
the vent pipe. Horizontal runs must slope downwards
not less than inch per foot (2 cm/m) from the unit to
the vent terminal. Reference Table 1 for the size of the
Category III vent system. Up to three elbows can be
used with 50 linear feet (15.2m) of pipe. Subtract 10
allowable linear feet (3.0m) for every additional elbow
used.
Term Description
Pipe Must comply with UL Standard 1738
such as Type 29-4C Stainless Steel
(either insulated or non-insulated).
Joint Follow vent manufacturer’s instructions
Sealing
Table 5. Required Horizontal Venting Material.
WARNING
The outdoor vent terminal gets hot. Unit must be
installed in such a way as to reduce the risk of
burns from contact with the vent terminal.
2.3 Locating Vent & Combustion Air
Terminals
2.3.1 Side Wall Vent Terminal
The appropriate Bradford White side wall vent
hood must be used, and is listed in the installation and
operation manual. The terminal provides a means of
installing the vent piping through the building wall,
and must be located in accordance with ANSI Z223.1/
NFPA 54 and applicable local codes. In Canada, the
installation must be in accordance with CSA B149.1 or
.2 and local applicable codes. Consider the following
when installing the terminal:
1. Figure 3 shows the requirements for mechanical
vent terminal clearances for the U.S. and Canada.
2. Vent terminals for condensing appliances or
appliances with condensing vents are not
permitted to terminate above a public walkway,
or over an area where condensate or vapor could
create a nuisance or hazard.
3. Locate the vent terminal so that vent gases cannot
be drawn into air conditioning system inlets.
4. Locate the vent terminal so that vent gases cannot
enter the building through doors, windows,
gravity inlets or other openings. Whenever
possible, locations under windows or near doors
should be avoided.
5. Locate the vent terminal so that it cannot be
blocked by snow. The installer may determine
that a vent terminal must be higher than the
minimum shown in codes, depending upon local
conditions.
6. Locate the terminal so the vent exhaust does
not settle on building surfaces or other nearby
objects. Vent products may damage such
surfaces or objects.
7. If the water heater uses ducted combustion air
from an intake terminal located on the same wall,
locate the vent terminal at least 3 feet (0.9m)
horizontally from the combustion air terminal,
and locate the vent terminal at least 1 foot (0.3m)
above the combustion air terminal.
Important Note:
Massachusetts Code Requirement.
For Sidewall Vented Appliances with Vent Terminals Located Less Than 7 Feet above grade:
1. Massachusetts Code requires that a CO Detector
and Alarm, listed by an approved third party
inspection agency to ANSI/UL 2034 and
complying with NFPA720 (2005 Edition) be
installed on each oor level in which there are
bedroom(s), if there is not one already present.
The location shall be in the living space outside
the bedroom(s).
2. An additional CO Detector and Alarm, as
indicated above, shall be located in the room that
houses the appliance and shall be powered by the
same electrical supply as the appliance such that
one service switch serves both the appliance and
the CO detector. The CO detector shall have a
battery backup.
3. The vent terminal, and if applicable the air intake
terminal, shall be the approved Laars terminals.
A copy of this manual shall remain with the
appliance at the completion of the installation.
4. 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 the horizontally vented gas fueled
heating appliance or equipment. The sign shall
read, in print size no less than one-half (1/2) inch
in size, “GAS VENT DIRECTLY BELOW.
KEEP CLEAR OF ALL OBSTRUCTIONS”.
For Sidewall Vented Appliances with Vent Terminal Located More Than 7 Feet above grade:
Items 1, 2 and 3 above shall apply. Follow
the Installation Instructions provided with the CO
Detectors when installing them. For issues with the
CO Detectors, contact the installing contractor.
2.3.2 Side Wall Combustion Air Terminal
The Bradford White side wall combustion air
terminal (listed in Table 1) must be used when the
unit takes its combustion air through a duct from a
side wall. Consider the following when installing the
terminal:
1. Do not locate the air inlet terminal near a source
of corrosive chemical fumes (e.g., cleaning uid,
chlorinated compounds, etc.)
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Copper Brute II
Page 11
2. Locate the terminal so that it will not be subject
to damage by accident or vandalism.
3. Locate the combustion air terminal so that it
cannot be blocked by snow. The National Fuel
Gas Code requires that it be at least 12 inches (30
cm) above grade, but the installer may determine
it should be higher, depending upon local
conditions.
4. If the Copper Brute II is side-wall vented to the
same wall, locate the vent terminal at least 3
feet (0.9m) horizontally from the combustion air
terminal, and locate the vent terminal at least 1
foot (0.3m) above the combustion air terminal
(see Figure 3).
2.3.3 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 2).
2.3.4 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 2).
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.
2.4 Common Vent Test
When an existing heater 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 heater, the
following steps shall be followed with each appliance
remaining connected to the common venting system
placed in operation, while the other appliances
remaining connected to the common venting system
are not in operation.
1. Seal any unused openings in the common venting
system.
2. Visually inspect the venting system for proper
size and horizontal pitch and determine there is
no blockage or restriction, leakage, corrosion and
other deciencies which could cause an unsafe
condition.
3. Insofar as it is practical, close all building doors
and windows and all doors between the space in
which the appliances remaining connected to the
common venting system are located and other
spaces of the building. Turn on clothes dryers
and any appliance not connected to the common
venting system. Turn on any exhaust fans, such
as range hoods and bathroom exhausts, so they
will operate at maximum speed. Do not operate a
summer exhaust fan. Close replace dampers.
4. Place in operation the appliance being
inspected. Follow the lighting instructions.
Adjust thermostat so 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 in Part
II of the National Fuel Gas Code, ANSI Z223.1/
NFPA 54 and/or CSA B149.1, Installation Codes.
2.5 Vent Terminals for Outdoor Units
For outdoor applications, the vent and
combustion air openings must be covered with proper
terminals to prevent rain, snow and other objects from
falling into the heater.
If local codes allow, outdoor installations may
use 1' of appropriately sized galvanized single wall
or B-Vent and a rain cap for exhaust vent termination
in the default conguration (venting out of the top).
An appropriately sized galvanized 90° ell, positioned
with the opening facing down, may be used on the
combustion air inlet in the default conguration on
the back of the unit. Note that some local codes may
require a higher vertical vent height, extending above
any perimeter fencing, etc. In installations where the
appearance of the vent is objectionable, the low prole
vent terminals in Table 6 may be used.
Part numbers for the low prole terminals to
cover the vent and combustion air openings are shown
in Table 6.
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Page 12
Outdoor Vent Outdoor
Model (Size) Terminal Combustion
Air Terminal
500 20254701 D2007900
750 20254703 D2007900
1000 20254705 D2008000
1250 D2007700 D2008000
1500 D2007700 D2008000
1750 D2007800 D2008000
2000 D2007800 D2008200
Table 6. Vent Terminals for Outdoor Units.
Bradford White
SECTION 3.
Gas Supply and Piping
3.1 Gas Supply and Piping
Gas piping should be supported by suitable
hangers or oor stands, not by the appliance.
The Copper Brute II gas train allows the user to
pipe the gas from either the right side or the left side
of the unit. As shipped, the right side of the gas train is
capped off, and there is a manual valve on the left side.
If desired, the manual valve on the left side of the gas
train may be moved to the right side, and the cap on
the right side may be moved to the left.
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. Copper
Brute II heaters are equipped to operate at
elevations up to 10000 feet (3050m). Copper
Brute II heaters may be adjusted to operate
properly at altitudes above 2500 feet (see Section
6.4.2) and the input will be reduced if the heating
value of the gas supply is below sea level values.
2. The maximum inlet gas pressure must not exceed
13" W.C (3.2kPa). The minimum inlet gas
pressure is 5" W.C. (1.2kPa).
3. Refer to Table 7, size supply.
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.
Distance from Gas Meter
or Last Stage Regulator
Model and
Gas Type 0-100' 0-31m 100-200' 31-61m 200-300' 61-91m
500 natural 1-1/2" 3.8cm 2" 5.1cm 2" 5.1cm
500 propane 1" 2.5cm 1-1/2" 3.8cm 1-1/2" 3.8cm
750 natural 2" 5.1cm 2" 5.1cm 2-1/2" 6.4cm
750 propane 1-1/2" 3.8cm 1-1/2" 3.8cm 2" 5.1cm
1000 natural 2" 5.1cm 2-1/2" 6.4cm 3" 7.6cm
1000 propane 1-1/2" 3.8cm 2" 5.1cm 2-1/2" 6.4cm
1250 natural 2-1/2" 6.4cm 2-1/2" 6.4cm 3" 7.6cm
1250 propane 2" 5.1cm 2" 5.1cm 2-1/2" 6.4cm
1500 natural 2-1/2" 6.4cm 3" 7.6cm 3" 7.6cm
1500 propane 2" 5.1cm 2-1/2" 6.4cm 2-1/2" 6.4cm
1750 natural 2-1/2" 6.4cm 3" 7.6cm 3" 7.6cm
1750 propane 2" 5.1cm 2-1/2" 6.4cm 2-1/2" 6.4cm
2000 natural 3" 7.6cm 3" 7.6cm 3-1/2" 8.9cm
2000 propane 2-1/2" 6.4cm 2-1/2" 6.4cm 3" 7.6cm
Notes:
1.These gures are based on 1/2" (0.12kPa) water column pressure drop.
2.Check supply pressure and local code requirements before proceeding with work.
3.Pipe ttings must be considered when determining gas pipe sizing.
Table 7. Gas Piping Size.
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Copper Brute II
Page 13
Warning
Do not use open ame to check for leaks. An open
ame could lead to explosion, which could result in
property damage, serious injury or death.
NOTE: The Copper Brute II 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.
SECTION 4.
Water Connections —
Copper Brute II Water Heater
4.1 Water System Piping —
Water Heater
Hot water piping should be supported by suitable
hangers or oor stands. Do not support piping with
this heater. Due to expansion and contraction of
copper pipe, consideration should be given to the type
of hangers used. Rigid hangers may transmit noise
through the system resulting from the piping sliding in
the hangers. It is recommended that padding be used
when rigid hangers are installed.
The heater can be used with several different
types of readily available storage tanks. A pump draws
water from the storage tank and pumps the water
through the heater and back into the tank. Pumpmounted units have a circulating pump built into the
water heater. The pumps used are sized for the head
loss through the heater, plus 30 feet (9.1m) of fullsized piping (same size as heater outlet) and a normal
number of ttings. Pumps used on pump-mounted unit
are sized for soft/normal or hard water, so make sure
a pump-mounted unit matches the water quality of the
installation.
Pipe the outlet from the heater’s relief valve
such that any discharge from the relief valve will be
conducted to a suitable place for disposal when relief
occurs. Do not reduce line size or install any valves in
this line. The line must be installed to allow complete
drainage of both the valve and the line.
Suggested piping diagrams are shown in Figures
4, 5, 6 and 7. These diagrams are meant only as a
guide. Components required by local codes must be
properly installed.
Note the recommended location of the
temperature sensor on the diagrams. The heater is
shipped with an additional sensor that can be used for
more full-featured domestic water heating control. To
get these features, you must provide a location for the
additional sensor. It can be strapped to a pipe from 1"
to 4" diameter, or inserted into a tank immersion well.
The minimum inlet water temperature for the
Copper Brute II is 120°F (49°C) to avoid condensing
on the copper coils.
4.2 Hot Water Supply Piping —
Water Heater
Follow the tank manufacturer’s guidelines for
completion of the hot water system connections.
NOTE: A listed temperature and pressure relief
valve listed as complying with the Standard for
Relief Valves and Automatic Gas Shutoff Devices
for Hot Water Supply Systems (ANSI Z21.22 /
CSA 4.4) of suitable discharge capacity must be
installed in the separate storage tank system.
If the water heater is installed in a closed
water supply system, such as one having a backow
preventer in the cold water supply line, the relief valve
may discharge periodically, due to thermal expansion.
Means (such as a properly-sized expansion tank) shall
be provided to control thermal expansion. Contact the
water supplier or local plumbing inspector on how to
control this situation.
4.3 Water Flow Requirements —
Water Heater
In a water heating application (an open system),
new water is constantly being introduced. With the
new water comes a fresh supply of minerals that can
be deposited on the unit’s heat exchanger. This is
commonly known as scaling. The amount of minerals
will depend upon the hardness of the water. Water can
also be aggressive, and can erode metals, including
copper, if the water is moved too quickly. The water
ow requirements for the Copper Brute II water heater
are based upon the hardness of the water. The water
ow is kept high enough to prevent scaling, but low
enough to prevent tube erosion. For extremely soft or
hard water, cupro-nickel tubes are available. Contact a
Bradford White representative if you have questions or
concerns about water quality.
Pump-mounted water heaters can be ordered
with standard pumps for soft or normal water or with
pumps for hard water. The pumps used are sized for
the head loss through the heater, plus 30 feet (9.1m)
of full-sized piping (same size as heater outlet) and a
normal number of ttings.
Table 8 species water ow rates for water
heaters, which will enable the user to size a pump. The
head loss shown is for the heater only, and the user
will need to add the head loss of the piping system to
properly size the pump.
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Copper Brute II
Page 15
NOTES:
6. CAUTION: PUMP SIZING MUST BE BASED UPON WATER HARDNESS AT
JOB SITE
1. OPTIONAL
CWMU & RECIRC. LINE LOCATION.
2. LOCA
TE PENNANT DHW SENSOR OR REMOTE AQUASTAT
WELL IN LOWER 1/3 OF
TANK.
3. BACK FLOW PREVENTER
MAY BE REQUIRED. CHECK LOCAL CODES.
4. THERMAL EXPANSION
TANK MAY BE REQUIRED. CHECK LOCAL CODES.
5. WHEN USING
FACTORY MOUNTED PUMP, MAX PIPE LENGTH IS
30 FEET TO
TAL, SIX 90° ELBOWS , FULL PIPE SIZE.
SUPPL
Y
RECIRC.
CWMU
1
CAUTION: THIS DRAWING SHOWS SUGGESTED
PIPING CONFIGURATION AND VALVING, CHECK
WITH LOCAL CODES AND ORDINANCES FOR
ADDITIONAL REQUIREMENTS.
LEGEND
CHECK VALVE
THERMOMETER
TEMPERATURE
SENSOR
GLOBE VALVE
EXPANSION TANK
3-WAY VALVE
VALV
E
PRESSURE REDUCING
VALV
E
PUMP
PRV
TPRV
WATER CATEGORY
GRAIN HARDNESS PER GALLON
PPM / 17.1 = Grains Per Gallon
KEY:
S = SOFT
N =
NORMAL
H =
HARD
1 THROUGH 7.5
7.6 THROUGH 17
OVER 17
LOCATION OF
FACTORY-MOUNTED
PUMP
2
5
3
4
7. MINIMUM INLET WATER TEMPERATURE IS 120°F.
Bradford White
Model
(Size)
gpm ft temp rise °F lpm m temp rise °C
S N H S N H S N H S N H S N H S N H
500 45 68 90 1.8 2.3 3.5 19 13 9 170 257 341 0.5 0.7 1.1 10 7 5
750 45 68 90 2.1 3.0 6.0 28 19 14 170 257 341 0.6 0.9 1.8 16 10 8
1000 45 68 90 2.3 3.6 6.1 38 25 19 170 257 341 0.6 1.1 1.9 21 14 10
1250 68 68 90 3.8 3.8 6.3 31 31 24 257 257 341 1.2 1.2 1.9 17 17 13
1500 68 68 90 3.9 3.9 6.5 38 38 28 257 257 341 1.2 1.2 2.0 21 21 16
1750 68 68 90 4.0 4.0 6.7 44 44 33 257 257 341 1.2 1.2 2.0 24 24 18
2000 112 112 112 10.0 10.0 10.0 30 30 30 424 424 424 3.0 3.0 3.0 17 17 17
Notes:
1. S = soft water (1 to 7.5 grains hardness)
2. N = normal water (7.6 to 17 grains hardness)
3. H = hard water (more than 17 grains hardness)
4. gpm = gallons per minutes, lpm = liters per minute, ft = head loss in feet, m = head loss in meters
5. Head loss is for heater’s heat exchanger only
Table 8. Water Flow Requirements
Figure 4. Water Heater Piping — One Heater, One Tank.
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