Bradfordwhite Canada Residential Boiler Wall Mounted Brute Lx Blxcw Blxhw Iomanual 1295A Bw User Manual

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User Manual: Bradfordwhite Canada Residential Boiler Wall Mounted Brute Lx Blxcw Blxhw Iomanual 1295A Bw canada_residential_boiler_wall_mounted_brute_lx_blxcw_blxhw_iomanual_1295a_bw uploads wp-content bradfordwhitecorp :

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Installation and Operation Instructions

Document 1295A

Installation and Operation
Instructions for

Brute LX
Wall-Mounted Modulating Boiler
Model BLXH
50, 75, 100, 125, 150, 175 & 220 MBH

Combination
Boiler and Water Heater
Model BLXC 125, 150 and 175 MBH

FOR YOUR SAFETY: This product must be installed and serviced by a professional service technician,
qualified in hot water boiler and heater installation and maintenance. Improper installation and/or operation
could create carbon monoxide gas in flue gases which could cause serious injury, property damage, or
death. Improper installation and/or operation will void the warranty.
WARNING
If the information in this manual is not
followed exactly, a fire or explosion may
result causing property damage, personal
injury or loss of life.
Do not store or use gasoline or other
flammable 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 fire department.

H2364001A

Installation and service must be performed
by a qualified installer, service agency, or gas
supplier.

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 ou ni
d’autres vapeurs ou liquides inflammables dans
le à proximité 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 dans le bâtiment où vous vous
trovez.
• 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 qualifié

ou par le fournisseur de gaz.

BRADFORD WHITE CORP.

TABLE OF CONTENTS
SECTION 1.
General Information

SECTION 4.
Gas Supply and Piping

1.1

Introduction ......................................................... 1

4.1 Gas Supply and Piping........................................... 17

1.2

To Open the Brute LX.......................................... 1

1.3

Rating Plate......................................................... 1

1.4

Model Nomenclature........................................... 1

1.5

Brute LX Overview............................................... 2

SECTION 5.
Pump Capacity

1.6

Start Up / Shut Down Instruction (Decal)............. 3

5.1 Brute LX Heating System Pump Capacity.............. 18

1.7

Dimensions for all Sizes...................................... 4

1.8

Unpacking............................................................ 6

1.9

Warranty.............................................................. 6

SECTION 6.
Water Connections
6.1

Central Heat System Piping.............................. 19

SECTION 2.
Locating the Appliance

6.2

Cold Water Make-Up......................................... 19

6.3

Freeze Protection.............................................. 19

2.1

Locating the Appliance........................................ 7

6.4

Recognized Chemicals...................................... 20

2.2

Correct Vent Distance
from Outside Wall or Roof Termination................ 7

6.5

Domestic Hot Water Piping (DHW and BLXC).. 20

2.1

Wall Mount Hole Locations.................................. 8

6.6

Indirect Water Heater Piping.............................. 20

6.7

Condensate Drain.............................................. 20

6.8

Piping Schematics........................................ 21-26

SECTION 3.
Venting and Combustion Air
3.1

Combustion Air.................................................... 9

3.1.1 Combustion Air from Room................................. 9

SECTION 7.
Electrical Connections
7.1

Main Power........................................................ 27

7.2

Pump Connections............................................ 27

7.3

24Vac Transformer Circuit Breaker.................... 27

7.4

Central Heat - Call for Heat............................... 27

7.5

Outdoor Air Temperature Sensor....................... 27

7.6

Domestic Hot Water Connection....................... 27

7.7

System Sensor
(lead lag/cascading operation only)................... 27

3.3.4 Vertical Combustion Air Terminal....................... 15

7.8

External Control Connections............................ 27

3.3.5 Installations in the Commonwealth
of Massachusetts............................................... 15

7.9

Ladder Diagram, Connections, and

3.1.2 Ducted Combustion Air...................................... 10
3.2

Venting (Exhaust).............................................. 10

3.2.1 About Common Venting..................................... 12
3.3

Locating Vent & Combustion Vent Terminals..... 13

3.3.1 Side Wall Vent Terminal..................................... 13
3.3.2 Side Wall Combustion Air Terminal.................... 13
3.3.3 Vertical Vent Terminal........................................ 15

3.4

Common Vent Test............................................ 16

Wiring Diagrams........................................... 28-30

Brute LX

SECTION 8.
CONTROL Setup and Operation

SECTION 11.
Maintenance

8.1

Digital Display.................................................... 31

11.1

System Maintenance ........................................ 42

8.2

CONTROLLER Modes...................................... 32

11.2

8.3

User Mode......................................................... 33

Appliance Maintenance and Component
Description......................................................... 42

8.4

Installer Mode.................................................... 34

8.5

Service Mode..................................................... 35

8.6

Modulation Control............................................ 35

8.7

Pump Control..................................................... 35

8.8

High Limit........................................................... 36

8.9

Stack Temperature............................................. 36

8.10

Domestic Hot Water Temperature..................... 36

SECTION 9.
OPERATION Modes

11.2.1 Burner................................................................ 42
11.2.2 Appliance Control.............................................. 42
11.2.3 Ignitor Assembly................................................ 43
11.2.4 Flame Sensor.................................................... 43
11.2.5 Blower................................................................ 43
11.2.6 Heat Exchanger Coils........................................ 43
11.2.7 Gas Conversion................................................. 44

SECTION 12.
Troubleshooting
12.1

Sequence of Operation . ................................... 45

12.2

Short Cycling..................................................... 45

12.3

Error Codes....................................................... 46

9.1

Hydronic Heating Demand................................ 36

9.2

Hydronic Heating with Outdoor Reset............... 36

9.3

Hydronic Heating Using External
Modulation Control............................................ 36

9.4

Warm Weather Shutdown.................................. 37

9.5

Domestic Hot Water Demand (BLXC only)........ 37

9.6

Domestic Hot Water Priority (BLXC only).......... 37

SECTION 13.
Replacement Parts

9.7

Cascade Auto Configuration.............................. 38

13.1

SECTION 10.
Set Up Instructions
10.1

Filling the Boiler System.................................... 39

10.2

Starting the Burner after Set Up........................ 39

10.2.1 Burner Operation............................................. 39
10.2.2 Boiler Setup and Adjustment........................... 40
10.3

Shutting Down the Brute LX.............................. 40

10.4

To Restart the Brute LX..................................... 40

Exploded Parts Illustrations .............................. 48

BRADFORD WHITE CORP.

SECTION 1.
General Information

THE

Brute LX

START-UP
INSTRUCTIONS

WIRING
DIAGRAM

RATING PLATE

Figure 1. Opening the Brute LX.
The top and bottom panels come off when
pulled forward. This is true for all sizes.

WARNING

Brute LX 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 LX boilers must conform to
the Standard for Controls and Safety Devices for Automatically Fired Boilers, ANSI/ASME CSD-1. Any modifications
to the boiler, its gas controls, or wiring may void the warranty. If field conditions require modifications, consult the
factory representative before initiating such modifications.

Page 1

Brute LX
1.1 Introduction

Edition “National Fuel Gas Code” or
2) CSA B149.1 “Natural Gas and Propane Installation
Code” and with the requirement of the local utility or
other authorities having jurisdiction. Such applicable
requirements take precedence over the general
instructions contained herein.
All electrical wiring is to be done in accordance with
the local codes, or in the absence of local codes, with: 1)
The National Electrical Code ANSI/NFPA No. 70-latest
Edition, or 2) CSA STD. C22.1 “Canadian Electrical
Code - Part 1”. This appliance must be electrically
grounded in accordance with these codes.

This manual provides information necessary for the
installation, operation, and maintenance of Bradford
White Brute LX appliances. 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 problems or
questions regarding this equipment. Experience has
shown that most operating problems are caused by
improper installation.
All installations must be made in accordance with
1) American National Standard Z223.1/NFPA54-Latest

1.2 To Open the Brute LX

To open the Brute LX for maintenance and servicing,
the upper and lower plastic panels are designed to 'pop'
off when they are pulled forward. See Figure 1 and
Figure 3. This will expose the top metal panel which
covers the heat exchanger, and the lower panel which
holds the low voltage connections and covers the pump
and other lower components.
To remove these panels for further access into the
Brute LX, there are two screws that hold each panel in
place. Remove the 2 screws on the upper panel and slide
the upper metal panel up and out. For the lower panel,
remove the 2 screws and hinge the lower metal panel
downward.
The center panel containing the On/Off Switch, Gauges,
and User Interface is not removable.

Nomenclature
(1)
(2-3)
(4)
(5)
(6-8)

1.3 Rating Plate

(9)

The Rating Plate is located on the metal pan behind the
lower plastic panel. It contains Model Nomenclature,
Manufacture Date, Model Number, Serial Number,
Output Rating, and all other information pertaining to
your Brute LX. .

(10)
(11)
(12)

1.4 Model Nomenclature

The Model Nomenclature is shown on your Rating Plate
and consists of a series of letters and numbers
( Nomenclature ) that further identifies the
characteristics of your Brute LX. See Figure 2.
1
B
LABEL
BRUTE

(13)

L
X

SERIES

L - SERIES

HEAT
EXCHANGER

USAGE
H - HYDRONIC
C - COMBI
UNIT

Figure 2. Model Nomenclature

CONFIG
W - WALL

SIZES
MBTU/h
50
75
100
125
150
175
220

Label
B = Brute
Series Designation
LX = L Series Heat Exchanger
Usage
H = Modulating Boiler
C = Combination Boiler and Water Heater
Configuration
W = Wall Hung
Size
50 = 50,000 BTU/hr input
75 = 75,000 BTU/hr input
100 = 100,000 BTU/hr input
125 = 125,000 BTU/hr input
150 = 150,000 BTU/hr input
175 = 175,000 BTU/hr input
220 = 220,000 BTU/hr input
Fuel
N = Natural Gas
P = LP Gas (propane)
Altitude
A = Up to10,000 Feet: de-rate applies*
Revision
1 = First version
Options Code
X = Standard
L = Low water cutoff
Pump Options
N = With Pump

FUEL

ALTITUDE

N - NATURAL

A - 0-10,000 FEET

P - PROPANE

REVISION
1 - FIRST

OPTIONS

PUMP OPTIONS

X - STANDARD

N - WITH PUMP

L - LWCO

* For high altitude applications, boiler must be
de-rated 4% per 1000 feet above 2000 feet.

Page 2

BRADFORD WHITE CORP.

1.5 Brute LX, Overview
GAS SUPPLY

CENTRAL HEAT OUT
CONNECTION
(SUPPLY WATER)

LIFT

CENTRAL HEAT
IN CONNECTION
(RETURN WATER)

BOTTOM
VIEW

2 SCREWS

USER
INTERFACE
ON / OFF
SWITCH
TEMPERATURE /
PRESSURE GAUGE
2 SCREWS

LOW VOLTAGE
FIELD CONNECTION
TERMINALS

CENTRAL HEAT
IN CONNECTION
(RETURN WATER)

AUTOMATIC
AIR VENT
LOW WATER CUT OFF
(OPTIONAL)
WATER PRESSURE
SWITCH
BLOCKED VENT
PRESSURE SWITCH

DHW
HOT OUT

DHW
COLD IN

DHW FLAT PLATE
HEAT EXCHANGER
(COMBINATION BOILERS ONLY)
COMBUSTION INLET
EXHAUST

SERVICE HATCH
GAS SUPPLY
COMBUSTION
AIR FAN
( BLOWER )
GAS VALVE
HEAT EXCHANGER
ASME TAG
HEAT EXCHANGER

SHOWN WITH THE FRONT PANELS OFF,
AND A SIDE PANEL MISSING FOR VISUAL
PURPOSES.

3-WAY VALVE
PUMP

CENTRAL HEAT OUT
CONNECTION
(SUPPLY WATER)
CONDENSATE
TRAP

Figure 3. Location of Components

FOLDS DOWN
TO OPEN
HIGH VOLTAGE
FIELD CONNECTION
TERMINALS

Brute LX
1.6 Start Up / Shut Down Instructions
(Decal)

The Start Up / Shut Down Instruction (Decal) can be found
on the metal panel behind the Top Panel. See Figure 1.
This Decal is also referred to as the Operating Instructions
Label and/or Warning Label.

FOR YOUR SAFETY READ BEFORE OPERATING
"WARNING: If you do not follow these instuctions exectly, a fire or explosion
may result causing property damage, personal injury or loss of life.
A. This appliance does not have a pilot. It is equipped with an ignition device that
automatically lights the burner.
B. BEFORE OPERATING smell all around the appliance area for gas. Be sure to smell
next to the floor because some gas is heavier than air and will settle on the floor.
WHAT TO DO IF YOU SMELL GAS
· Do not try to light appliance.
· Do not touch any electric switch: do not use any phone in your building
· Immediately call your gas supplier from a neighbor's phone. Follow the gas
supplier's instructions.
· If you cannot reach your gas supplier, call the fire department.
C. Do not use this appliance if any part has been under water. Immediately call a
qualified service technician to inspect the appliance and to replace any gas control which
has been under water
D. TO TURN OFF GAS TO APPLIANCE
(1) SET SELECTOR SWITCH TO "OFF"(0) (2) Turn off all electric power to appliance
(3).Turn manual gas cock "off"

PAR MESURE DE PRUDECE, LISEZ CE QUI SUIT AVANT
DE FAIRE FONCTIONNER L'APPAREIL

"MISE EN GARDE: Si vous ne suivez pas ces instructions a la lttre, un
incendie ou une explosion pourrait se produire et causer des dommages
materiels, des blessures personnelles ou meme la mort..
A. Cet appareil n'est pas doté d'une veilleuse. Il est équipe d'un dispositif d'allumage
qui allume automatiquement le brûleur. Ne tentez pas d'allumer le brûleur manuellement.
B. AVANT D'UTILISER, vérifiez s'il n'ya pas d'odeur de gaz prés de l'appareil. Vérifiez
s'il n'ya pas d'odeur de gaz prés du plancher, car le gaz est plus lourd que l'air et peut
se déposer sur le plancher.
QUE FAIRE EN CAS D'ODEUR DE GAZ
• N'essayez pas d'allumer n'importe quelque appareil que ce soit.
• Ne touchez pas a un commutateur electrique. N'utilisez pas le téléphone de votre résidence.
• Appelez immédiatement votre fournisseur de gaz en utilisant le téléphone de votre
voisin. Suivez les instructions de votre fournisseur de gaz.
• Si vous ne pouvez joindre votre fournisseur de gaz, appelez le service des incendies.
C. N'utilisez pas cet appareil si l'une des pièces a été plongée sous l'eau.
Communiquez immédiatement avec un technicien de service qualifie afin qu'il inspecte
l'appareil et remplace toute pièce du système de commande et toute commande de
gaz qui aurait été plongée sous l'eau.
D. FERMETURE DE L'ALIMENTATION EN GAZ
(1) Poussez le bouton a bascule vers La position OFF (0).
(2) Coupez l'alimentation électrique â l'affairée.
(3) fermez le robinet de gaz manuellement vers OFF (la poignée est horizontale
H23377-

Figure 4. Start Up / Shut Down Instructions (Decal)

Page 3

Page 4

BRADFORD WHITE CORP.

HYDRONIC
OUTLET

17"
43

73 "
4
20

AIR
ELIMINATION
VENT
AIR
INLET
EXHAUST
VENT

1.7 Dimensions, Brute LX
31 "
4
8

31 "
4
8

GAS

HYDRONIC
INLET
TOP

23 "
4
7

FRONT

CONDENSATE
TRAP
HYDRONIC
INLET

F
C

DHW
OUTLET

SIDE

GAS

HYDRONIC
OUTLET
E
J

G
A
L

BOTTOM

K
B

DHW
INLET
Figure 5. Dimensional Drawing, All Sizes

Page 5

Brute LX

Size
Model

Dimension
A

50, 75 MBH

1" (3)

15-3/4" (40)

3-3/4" (9)

9-1/4" (24)

8" (20)

1-1/2" (4)

5-3/4" (14)

15-1/2" (39)

100 MBH

1" (3)

15-1/2" (39)

1-1/4" (3)

12-3/4" (33)

11" (28)

1-1/4" (3)

9-1/2" (24)

14-3/4" (37)

125 MBH

1" (3)

15-1/2" (39)

1-1/4" (3)

12-3/4" (33)

11" (28)

1-1/4" (3)

9-1/2" (24)

14-3/4" (37)

2-3/4" (7

150, 175 MBH

1-1/2" (4)

15-1/4" (39)

1-3/4" (4)

13" (33)

11-1/4" (28)

2-3/4" (7)

5-1/4" (14)

2" (5)

2-3/4" (7

220 MBH

1-1/2" (4)

15-1/4" (39)

1-3/4" (4)

13" (33)

11-1/4" (28)

2-3/4" (7)

5-1/4" (14)

2" (5)

inches (cm's)

Size
Model H

Dimension
JA
*

D
M

E
N

F
O

/2" (4)

5-3/4" (14)
15-1/2"
50, 75
MBH (39)

1"--(3)

15-3/4"
-- (40)

3-3/4"
-- (9)

30-1/2"
9-1/4" (78)
(24)

(39)
15-1/4"
8" (20)

4-5/8" (12)
1-1/2"
(4)

5-3/4" (14)

15-1/2" (39)

/4" (3)

9-1/2" (24)10014-3/4"
MBH (37)

1"--(3)

15-1/2"
-- (39)

1-1/4"
-- (3)

30-1/2"
12-3/4" (78)
(33)

18"
11" (28)
(46)

4-5/8"
1-1/4" (12)
(3)

9-1/2" (24)

14-3/4" (37)

/4" (3)

9-1/2" (24)12514-3/4"
MBH (37)

2-3/4"
1" (3)
(7)

12-3/4"
15-1/2" (33)
(39)

1-1/4"
2" (5) (3)

30-1/2"
12-3/4" (78)
(33)

18"
11" (28)
(46)

4-5/8"
1-1/4" (12)
(3)

9-1/2" (24)

14-3/4" (37)

2-3/4" (7

3/4" (7)

5-1/4" (14)
(5)
150, 175 2"MBH

2-3/4"
1-1/2" (7)
(4)

12-3/4"
15-1/4" (33)
(39)

1-3/4"
1-3/4"(5)
(4)

35-1/2"
13" (33)
(90)

11-1/4"
18" (46)
(28)

8-7/8"
2-3/4" (23)
(7)

5-1/4" (14)

2" (5)

2-3/4" (7

3/4" (7)

5-1/4" (14)220 MBH
2" (5)

1-1/2"
-- (4)

15-1/4"
-- (39)

1-3/4"
-- (4)

38-1/2"
13" (33)
(90)

11-1/4"
18" (46)
(28)

8-7/8"
2-3/4" (23)
(7)

5-1/4" (14)

2" (5)

inches (cm's)

* - J dimension applies for both the DHW OUTLET and DHW INLET
Table 1.

Dimensional Tables, All Sizes

izing Data WALL

izing Data,
iping

Input

Model

Size

BTU/h

Output
kW

BTU/h

DHW
AFUE
Gas
Water
DHW
Output @
Conn. Size Conn. Size Conn. Size
75°F Rise
inches
inches
inches

Boiler
Shipping
Weight
lbs kg

Combi
Shipping
Weight
lbs
kg

MLX

50,000

14.6

47,500

13.2

95% 1/2” NPT

3/4” NPT

MLX

75,000

21.9

71,250

20.8

95% 1/2” NPT

3/4” NPT

MLX

100

100,000 29.3

95,000

27.8

95% 1/2” NPT

3/4” NPT

112

MLX

125

125,000 36.6

118,750

34.8

3.1 gpm

95% 1/2” NPT

3/4” NPT 1/2” NPT

126

133

MLX

150

150,000 43.9

142,500

41.8

3.7 gpm

95% 1/2” NPT

1“ NPT

1/2” NPT

140

148

MLX

175

175,000 51.6

166,250

48.7

4.3 gpm

95% 1/2” NPT

1“ NPT

1/2” NPT

153

163

MLX

220

220,000 64.4

209,000

61.2

95% 1/2” NPT

1“ NPT

161

NOTES:
1. For other boiler ratings:
Boiler Horsepower: HP = Output
33,475

Table 2.

Radiation Surface: EDR sq. ft. = Output
150

Cond.
Piping Type and
SizesHydronic
Outlet

Return

DHW
Inlet

2nd
Return

Gas
Supply

Hydronic
Supply

DHW
Outlet

2nd
Supply

50 thru 125

3/4"
PVC

3/4"
copper

1/2"
NPT

3/4"
copper

1/2"
NPT

3/4"
NPT

1/2"
NPT

3/4"
copper

150 - 220

3/4"
PVC

1"
NPT

1/2"
NPT

3/4"
copper

1/2"
NPT

1"
NPT

1/2"
NPT

3/4"
copper

Page 6

BRADFORD WHITE CORP.

1.8 Unpacking

The Brute LX is shipped in a single crate with the
standard components packed with the appliance See
Figure 6:

1. Remove all packing and tie-down materials.
2. Check contents of the carton against items shown.

7
4

5
8
1

Bird Screen

3
6

1) PRV
2) PRV Pipe w/ washer
3) Wall attach bracket

9
4) Outdoor sensor
5) Exhaust terminal assy
6) Air intake terminal assy

7) Gas Supply Shut Off Valve
8) Washer
9) Flow restrictor

Figure 6. Contents of the Hardware Shipping Package

1.9 Warranty

Bradford White Brute LX appliances are covered by
a limited warranty. The owner should complete the
warranty registration at www.bradfordwhite.com.
All warranty claims must be made to an authorized
Bradford White representative. Claims must include the
serial number and model (this information can be found
on the rating plate), installation date, and name of the
installer. Shipping costs are not included in the warranty
coverage.

Some accessory items may be shipped in separate
packages. Verify receipt of all packages listed on the
packing slip. Inspect everything for damage immediately
upon delivery, and advise the carrier of any shortages
or damage. Any such claims must be filed with the
carrier. The carrier, not the shipper, is responsible
for shortages and damage to the shipment whether
visible or concealed.

Page 7

Brute LX

SECTION 2.
Locating the Appliance
2.1 Locating the Appliance

Sizing Data WALL

The Brute LX is designed for indoor
wall-mounted installations only.

Input

Model

MLX

Output

BTU/h

50,000

14.6

47,500

13.2

DHW
AFUE
Ga
Output @
Conn.
75°F Rise
inche

95%

1/2” N

The Brute LX must be mounted to a suitable wall by a
MLX 75
75,000 21.9
71,250 20.8
95% 1/2” N
qualified heating contractor under the guidelines of a
MLX 100 100,000 29.3
95,000 27.8
95% 1/2” N
wall mounted boiler or combination unit. Use a suitable
MLX 125 125,000 36.6 118,750 34.8 3.1 gpm 95% 1/2” N
wall, either concrete or wood and use the appropriate
fasteners for that wall. Failure to wall mount this boiler
MLX 150 150,000 43.9 142,500 41.8 3.7 gpm 95% 1/2” N
using correct fasteners will affect the performance and
MLX 175 175,000 51.6 166,250 48.7 4.3 gpm 95% 1/2” N
life expectancy of the boiler and will void the warranty.
MLX 220 220,000 64.4 209,000 61.2
95% 1/2” N
The appliance should be located to provide clearances
NOTES:
on all sides for maintenance and inspection. It should
1. For other boiler ratings:
not be located in an area where leakage of any
Boiler Horsepower: HP = Output Radiation Surface: EDR sq. ft. = Outpu
connections will result in damage to the area adjacent to
33,475
150
the appliance, the wall that it is hung on, or to the lower
floors of the structure.
Cond. Hydronic DHW
2nd
Sizing
Data,
Outlet
Return
Inlet
Return
When such a location is not available, it is recommended
Piping
3/4"
3/4"
1/2"
3/4"
that a suitable drain pan, adequately drained, be installed
50 thru 125
PVC
copper
NPT
copper
under the appliance.
3/4"
1"
1/2"
3/4"
Figure 7. Locating
150 - the
220 Appliance.
The appliance is design certified by CSA-International
PVC
NPT
NPT
copper
for wall-mounted installation in basements; in closets,
utility rooms or alcoves. The location for the appliance
should be chosen with regard to the vent pipe lengths
and external plumbing and on a plumb (vertical) wall.
Wall
Flo
The unit shall be installed such that the gas ignition
system components are protected from water (dripping,
APPLIANCE
SUGGESTED SERVICE ACCESS CLEARANCE
APPLIANC
Clearances SURFACE
INCHES
CM
SURFACE
spraying, rain, etc.) during operation and service
Left Side
6
15
Left Side
(circulator replacement, control replacement, etc.).
If the vent terminal and/or combustion air terminal
Right Side
6
15
Right Si
terminate through a wall, and there is potential for snow
Top
12
30
Top
accumulation in the local area, both terminals must
Closet, Front
6
15
Closet, F
be installed at an appropriate level above grade or the
Front
24
61
Front
maximum expected snow line.
Bottom
24
61
Vent
The dimensions and requirements that are shown in
Vent
1
3
Table 3 should be met when choosing the locations for
Certified by CSA for zero clearance to
the appliance.
combustible materials on all sides.
Table 3.

Clearances

2.2 Correct Vent Distance from Outside
Sizing Data FLOOR STANDING
Wall or Roof Termination
The forced draft combustion air blower in the appliance
has sufficient power to vent properly when the
guidelines in Table 4 are followed.
For concentric vent terminal kit (optional), follow
installation instructions included with the kit.

Input

Model

Output

BTU/h onkW
BTU/h
NOTE: When located
the same
wall,kW
the
MLX Distance
50
50,000
14.6
47,50011.13.2
Venting
is found
on Figure

MLX

75,000

21.9

71,250

20.8

DHW
AFUE
Ga
Output @
Conn.
75°F Rise
inche
Minimum

95%

1/2” N

95%

1/2” N

MLX

100

100,000 29.3

95,000

27.8

95%

1/2” N

MLX

125

125,000 36.6

118,750

34.8

3.1 gpm

95%

1/2” N

MLX

150

150,000 43.9

142,500

41.8

3.7 gpm

95%

1/2” N

MLX

175

175,000 51.6

166,250

48.7

4.3 gpm

95%

1/2” N

MLX

220

220,000 64.4

209,000

61.2

95%

1/2” N

Overall Width
17 "
Page 8
43.2 cm

Centered
Wall Bracket
(supplied)
12P3013

Bolts/Anchors (4)
provided by installer,
each is to be suitable for
BRADFORD
WHITE CORP.
160 lbs [73kg]
minimum.

2" Air Inlet

2.2 Wall Mount Hole
Locations.
7 3 "
4
19.6 cm

32"

Overall Width
17 "
43.2 cm
A

Exhaust and
Concentric
3 1 "
4
8.1 cm

2" Air Inlet16”
40.6 cm
7 43 "
2" Exhaust and
19.6 cm
Concentric
3 1 "
4
Bolts/Anchors
8.1 cm(4)
Centered
provided by installer,
Wall top
Bracket
Desired
of Brute LX each is to be suitable for
(supplied)
160 lbs [73kg]
12P3013
minimum.

Wall Mounting Dimensions

Wall to which Brute
LX is mounted

Anchor / fastener provided
by Installer - appropriate for
250 lbs (114 kg) operating
Recommended service clearances:
weight
Sides:
3" / 15cm

Zero clearance to combustables allowed
Top
6" / 15cm
Bottom: 24" / 61cm
Front: 24" / 61cm

Dimensions shown in Inches and centimeters
Bracket factorymounted
on back of Mascot

16”
40.6 cm

A
A

Safety Wall Bracket, Qty 2
Note: Brute LX
(supplied)
bracket and wall
12P4010

Wall Mounting Dimensions
Centered
Wall Bracket
(supplied)
12P3013
B

Wall bracket
provided by
Bradford White

bracket are
purposely offset.

Bolts/Anchors (4)
provided by installer,
each is to be suitable for
160 lbs [73kg]
minimum.

Figure 8. Mounting Detail.

DIMENSIONS

Zero clearance to combustables allowed
Recommended service clearances:
Sides: Wall
3" Mounting
/ 15cm Dimensions
Top
6" / 15cm
Bottom: 24" / 61cm
Front: 24" / 61cm

MASCOT LX
MODEL SIZE
50, 75, 100, 125
150/175
220

DESIGNATOR
A
B
A
B
A
B

Dimensions shown in Inches and centimeters
B

FMA56A

Zero clearance to combustables allowed
Recommended service clearances:
Sides: 3" / 15cm
4
Top
6" / 15cmWall
Bracket, Qty 2
Bottom: 24"Safety
/ 61cm(supplied)
Front: 24" / 61cm
12P4010
Dimensions shown in Inches and centimeters

Figure 9. Wall Bracket Hole Mounting Locations

INCHES

4-1/2
29- 3/4
55-1/4
33-6
33-1/2
54
5-3/4
366
36-1/2

11.5
75.6

11.5

13.4
85.2 85.2
14.6 14.7
93.0 0

75.7

Page 9

Brute LX

SECTION 3.
Size and Combustion Air
Venting

Boiler

Volts
Phase
TheMLX
Brute LX
50includes a standard
120 CPVC vent/combustion
Single
air adapter.
field connections
require use of PVC/CPVC
MLX If75
120
Single
vent
materials,
MLX
100the installer must
120use proper adhesive
Singleto
joinMLX
CPVC 125
and/or PVC pipe and
120fittings.
Single
MLX 150
120
Single
MLX 175
120
Single
3.1MLX
Combustion
Air 120
220
Single

Amps
sectional area as the free area of the openings to which

1.5 connect.
they
1.5
Method 1: Two permanent openings, one commencing
1.5 12" (300mm) of the top and one commencing
within
1.5
within 12" (300mm) of the bottom, of the enclosure
1.5 be provided. The openings shall communicate
shall
2.2
directly, or by ducts, with the outdoors or spaces
2.2 freely communicate with the outdoors. When
that
Brute LX boilers and water heaters must have provisions
directly communicating with the outdoors, or when
for combustion and ventilation air in accordance with the
communicating to the outdoors through vertical ducts,
*applicable
Minimum 15A
circuit
required
requirements for Combustion Air Supply and
each opening shall have a minimum free area of 1
Ventilation in the National Fuel Gas Code, ANSI Z223
square inch per 4000 Btu/hr (550 square mm/kW) of
1; or in Canada, the Natural Gas and Propane Installation
total input rating of all equipment in the enclosure.
Code, CSA B149.1. All applicable provisions of local
When communicating to the outdoors through
building codes must also be adhered to.
horizontal ducts, each opening shall have a minimum
A Brute LX unit can take combustionINTAKE
air from/ the
EXHAUST free area of not less than 1 square inch per 2000 Btu/
MaxorEquivalent
Vent andair
Air Pipe Length (each)
space in which it is installed,
the combustion
hr (1100 square mm/kW) of total input rating of all
can be ducted directly
to the 2-PIPE
unit. Ventilation
air must
STANDARD
STANDARD
2-PIPE
OPTIONAL CONCENTRIC
equipment
in the enclosure.
SIZES in either
DIA.case.
FT.
m
DIA.
FT.
m
DIA.
FT.
m
be provided
Method 2: One permanent opening, commencing
50 - 175
2"
40 12.2
*3"*
150 45.7
3/5"
40 12.2
within 12" (300mm) of the top of the enclosure, shall
220
2”
30
9.1
*3”*
120
36.6
3/5”
40 shall
12.2directly communicate
be permitted. The opening
3.1.1 Combustion Air from Room
with the outdoors or shall communicate through a
In the United States, the most common requirements
vertical or horizontal duct to the outdoors or spaces
specify
that
shall
communicate
the
* Must
usethe
2x3space
adapter
within
1 ft. (30cm)with
of boiler.
that directly communicate with the outdoors and shall
outdoors
in
accordance
with
method
1
or
2,
which
follow.
Reference the Installation and Operation Manual for more details.
have a minimum free area of 1 square inch per 3000
Where ducts are used, they shall be of the same crossINTAKE AND EXHAUST LENGTH
MAX EQUIV.
FT.
M

VENT

MAX EQUIV.
FT.
M

CONCENTRIC MAX EQUIV.
VENT
FT.
M

SIZE

VENT

6.1

*3"*

150

30.5

3/5"

6.1

*3"*

150

30.5

3/5"

6.1

100

6.1

*3"*

150

30.5

3/5"

6.1

125

6.1

*3"*

150

30.5

3/5"

6.1

150

6.1

*3"*

150

30.5

3/5"

6.1

175

6.1

*3"*

150

30.5

3/5"

6.1

220

4.6

*3"*

120

24.4

3/5"

6.1

Installations in the U.S. require exhaust vent pipe that is a combination of PVC & CPVC complying with
ANSI/ASTM D1785 F441 or stainless steel complying with UL1738. Polypropylene installations require
exhaust vent pipe that is certified to ULC S636.
Intake (air) pipe may be any material that complies with ANSI/ASTM D1785 F441, ABS that complies with
ANSI/ASTM D1527 or galvanized material.
Installer must comply fully with manufacturer's installation instructions, to maintain ANSI Z21.13 safety
certification.
Closet and alcove installations do not allow the use of PVC under any circumstances
To calculate max equivalent length, measure the linear feet of the pipe, and add 5 feet (1.5m) for each
elbow used.
* Must use 2x3 adapter within 1 ft. (30cm) of boiler.

Table 4.

Vent / Air Pipe Sizes

Page 10

BRADFORD WHITE CORP.
INSTALLATION STANDARDS

MATERIAL
ABS
PVC, sch 40
CPVC, sch 40
Polypropylene
Single wall galv. steel
Table 6.

UNITED STATES
ANSI/ASTM D1527
ANSI/ASTM D1785 or D2665
ANSI/ASTM F441
UL1738, ULC S636.
26 gauge

CANADA

Air pipe material must be chosen
CPVC, sch 40, ANSI/ASTM, Polypropylene
based upon the intended application of the boiler.

Required Combustion Air Pipe Material.

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 confined space.
Other methods of introducing combustion and
ventilation air are acceptable, providing they conform to
the requirements in the applicable codes listed above.
In Canada, consult local building and safety codes or, in
absence of such requirements, follow CAN/CGA B149.

3.1.2 Ducted Combustion Air

The combustion air can be taken through the wall, or
through the roof. When taken from the wall, it must be
taken from out-of-doors by means of the Bradford White
horizontal wall terminal, shown in Table 5. See Table 4
to select the appropriate diameter air pipe. When taken
from the roof, a field-supplied rain cap or an elbow
arrangement must be used to prevent entry of rain water
(see Figure 5).
Use ABS, PVC, CPVC, polypropylene, or galvanized
pipe for the combustion air intake (see Table 6), sized
per Table 4. Route the intake to the boiler as directly
as possible. Seal all joints. Provide adequate hangers.
The unit must not support the weight of the combustion
air intake pipe. Maximum linear pipe length allowed is
shown in Table 4. Subtract 5 allowable linear ft. (1.5m)
for every elbow used.
The connection for the intake air pipe is at the top of the
unit (see Figure 3).
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.

The flue temperature of the Brute LX changes
dramatically with changes in operating water
temperature. Therefore, it is necessary to assess the
application of the boiler to determine the required
certified vent class. If the Brute LX 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, stainless, polypropylene or CPVC
material is recommended.
The Brute LX is a Category IV appliance and may
be installed with PVC, CPVC or polypropylene that
complies with ULC-S636, ANSI/ASTM D1785 F441
(see Table 4) or a stainless steel venting system that
complies with UL 1738 Standard (see Table 8).
WARNING

Failure to use the appropriate vent material, installation
techniques, glues/sealants could lead to vent failure
causing property damage, personal injury or death.

WARNING

3.2 Venting (Exhaust)
Part Number

Size

239-44069-02

PVC Concentric Vent Terminal

239-44069-01

PVC Concentric Vent Terminal

CA010101

Flush Vent Terminal PVC

CA010100

Flush Vent Terminal PVC

CA007100

3" to 5"

Table 5.

Vent Termination Options

Description

Stainless Steel Concentric Vent Terminal

Page 11

Brute LX
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.

INSTALLATIONS IN CANADA require the use
of venting material certified to ULCS636. All Gas
vents connected to the Brute LX, plastic, stainless
steel or otherwise must be certified to this ULC
standard. Appropriate selection of vent material is
very important for proper performance and safe
operation of the Brute LX.
The flue temperature of the Brute LX changes
dramatically with changes in operating water
temperature. Therefore, it is necessary to assess the
application of the boiler to determine the required
certified vent class. If the Brute LX is installed in
an application where the outlet water temperature
exceeds 145°F, and/or installed in a closet, class
IIB or higher vent material is required. If the
system temperatures are unknown at the time of
installation, class IIB or higher venting material is
recommended.
IN CANADA all venting used must meet the
following requirements:
1. ULC-S636 certified and marked
2. The first 3 feet of venting must be accessible for
visual inspection.
3. All components used in the vent system must be
from a certified manufacturer.
4 . Vent system components must not be mixed
with alternate manufacturers certified
components and/or unlisted components.
5 . The venting must be installed according to the
vent manufacturers installation instructions.
The unit’s vent can terminate through the roof, or
through an outside wall.
See Table 4 to select the appropriate vent pipe
diameter. Vent pipe must pitch upward, toward the vent
terminal, not less than 1/4" per foot, so that condensate
will run back to the Brute LX to drain. Route vent pipe
to the heater as directly as possible. Seal all joints and
provide adequate hangers as required in the venting
system manufacturer’s Installation Instructions.
Horizontal portions of the venting system must be
supported to prevent sagging and may not have any
low sections that could trap condensate. The unit must
not support the weight of the vent pipe.

NOTICE

The instructions for the installation of the venting
system shall specify that the horizontal portions of
the venting system shall be supported to prevent
sagging; the methods of and intervals for support
shall be specified. These instructions shall also
specify that the venting system:
Category I, II and IV boilers must be installed so
that horizontal sections have a slope of at least ¼
inch per foot (21 mm/m) to prevent accumulation of
condensate; and
For Category II and IV boilers, where necessary,
have means provided for drainage of condensate.

AVIS

Les instructions d'installation du système
d'évacuation doivent préciser que les sections
horizontales doivent être supportées pour prévenir
le fléchissement. Les méthodes et les intervalles
de support doivent être spécifiés. Les instructions
doivent aussi indiquer les renseignements suivants:
les chaudières de catégories I, II et IV doivent
présenter des tronçons horizontaux dont la pente
montante est d'au moins ¼ po par pied (21 mm/m)
entre la chaudière et l'évent; les chaudières de
catégories II et IV doivent être installées de façon à
empêcher l'accumulation de condensat;
et si nécessaire, les chaudières de catégories II et IV
doivent être pourvues de dispositifs d'évacuation du
condensat.

NOTICE

For Category II and IV boilers, be installed so as to
prevent accumulation of condensate; and
For Category II and IV boilers, where necessary,
have means provided for drainage of condensate.

AVIS

les chaudières de catégories II et IV doivent être
installées de façon à empêcher l'accumulation de
condensat; et
si nécessaire, les chaudières de catégories II et IV
doivent être pourvues de dispositifs d'évacuation du
condensat.

Page 12

BRADFORD WHITE CORP.

INSTALLATION STANDARDS
MATERIAL
Stainless Steel
PVC, sch 40
CPVC, sch 40
Polypropylene
Table 8.

UNITED STATES
UL 1738
ANSI/ASTM D178
ANSI/ASTM F441
UL1738 or ULC-S636

CANADA
Venting must be ULC-S636 certified for use as
venting material. The venting material must be chosen
based upon the intended application of the boiler.

Required Exhaust Vent Material.
Allowable Polypropylene Vent Manufacturers
/ Trade Names

3.2.1 About Common Venting

NOTICE

DO NOT COMMON VENT BRUTE LX UNITS.Brute
LX units are never permitted to share a vent with
Category I appliances.

Example
Components
Single Wall Pipe
Elbow
PVC adapter

MFR (model number abbreviated*)
Centrotherm
DuraVent
Selkirk
Trade Names/Models
InnoFlue
PolyPro
Polyflue
ISVLxxxx
xPPS-x
xPF-xx
ESELxxxx
xPPS-E90
xPF-90
ISAGxxxx
xPPS-AD
xPF-PVC-PF

Notes:
"x", "xx" and "xxxx" refer to variations in nominal size. See manufacturer's
catalog for a particular application.

These manufacturers
manufacturers samples
sampleshave
havebeen
beentested
testedand
andauthorized
authorizedtotosafely
safely
equpment.
operate with
with Laars
Bradford
White equipment
Only the above manufacturers and models have been approved.
Substitutes are not allowed.

AVIS

NE PAS ÉVENT COMMUNE BRUTE LX UNITÉS.
Brute LX unités ne sont jamais autorisés à
partager un évent Catégorie I avec les appareils.

Manufacturers materials and models may not be mixed in the same
application.
Contact Polypropylene manufacturer's distributor for complete model
number selection.
Installer must follow Polypropylene manufacturers installation instructions.

Table 7.

Allowable Vent Manufacturers

Figure 10. Minimum Venting Distance.

Page 13

Brute LX
3.3 Locating Vent & Combustion Air
Terminals
3.3.1 Side Wall Vent Terminal

The appropriate Bradford White side wall vent
terminal must be used. The terminal must be located in
accordance with ANSI Z223.1/NFPA 54 and applicable
local codes. In Canada, the installation must be in
accordance with CSA B149.1 or .2 and local applicable
codes. Consider the following when installing the
terminal:
1.
Figure 12 shows the requirements for mechanical
vent terminal clearances for the U.S. and Canada.
2. Vent terminals for condensing appliances or
appliances with condensing vents are not permitted
to terminate above a public walkway, or over an
area where condensate or vapor could create a
nuisance or hazard.
3. Locate the vent terminal so that vent gases cannot
be drawn into air conditioning system inlets.
4. Locate the vent terminal so that vent gases cannot
enter the building through doors, windows, gravity
inlets or other openings. Whenever possible, avoid
locations under windows or near doors.
5.
Locate the vent terminal so that it cannot be
blocked by snow. The installer may determine
that a vent terminal must be higher than the
minimum shown in codes, depending upon local
conditions.
6. Locate the terminal so the vent exhaust does not
settle on building surfaces or other nearby objects.
Vent products may damage surfaces or objects.
7. If the boiler or water heater uses ducted combustion
air from an intake terminal located on the same
wall, see Figure 12 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

Figure 11. Combustion Air and Vent Through Roof.

issues.

3.3.2 Side Wall Combustion Air Terminal

The Bradford White side wall combustion air terminal,
or concentric terminal (see Table 5), must be used
when the heater takes air from a side wall. Consider the
following when installing the terminal (see Figure 12):
1. Do not locate the air inlet terminal near a source
of corrosive chemical fumes (e.g., cleaning fluid,
chlorine compounds, etc.)
2. Locate the terminal so that it will not be subject to
damage by accident or vandalism. It must be at least
7 feet (2.1m) above a public walkway.
3. Locate the combustion air terminal so that it cannot
be blocked by snow. The National Fuel Gas Code
requires that it be at least 12 inches (30cm) above
grade, but the installer may determine it should be
higher, depending upon local conditions.
4.
For concentric vent, follow instructions included
with vent kit.
5. Multiple vent kits should be installed such that the
horizontal distance between outlet group and inlet
group is 36" (90cm) minimum.
6. Vent outlet must be no lower than the center of the
air inlet, and must be at least 12" (30cm) away from
the air inlet (see Figure 10).

Page 14

BRADFORD WHITE CORP.

U.S. Installations (see note 1)

Canadian Installations (see note 2)

A= Clearance above grade, veranda, porch,
deck, or balcony

12 inches (30 cm)
See note 6

B= Clearance to window or door that may be
opened

Direct vent only: 12 inches (30cm);
Other than Direct vent: 4 ft (1.2m) below or to
side of opening; 1 ft (30cm) above opening

36 inches (91 cm)

C= Clearance to permanently closed window

See note 4

See note 5

D= Vertical clearance to ventilated soffit located
above the terminal within a horizontal
See note 4
distance of 2 feet (61cm) from the center
line of the terminal

See note 5

E= Clearance to unventilated soffit

See note 4

See note 5

See note 4

See note 5

3 feet (91 cm) minimum

See note 5

Clearance to outside corner

G= Clearance to inside corner

H= Clearance to each side of center line
extended above meter/regulator assembly See note 4

3 feet (91 cm) within a height 15 feet
above the meter/regulator assembly

Clearance to service regulator vent outlet

See note 4

3 feet (91 cm)

Clearance to nonmechanical air supply
inlet to building or the combustion air inlet
to any other appliance

Direct vent only: 12" (30cm) 80-285; 36" (91cm)
399-850. Other than Direct vent: 4 ft (1.2m) below
or to side of opening; 1 ft (30cm) above opening

36 inches (91 cm)

K= Clearance to a mechanical air supply inlet

3 feet (91 cm) above if within 10 feet (3 m)
horizontally

6 feet (1.83 m)

Vent termination not allowed in this location
for category IV appliances.

Vent termination not allowed in this
location for category IV appliances.

See note 4

12 inches (30 cm) (see note 3)

Clearance above paved sidewalk or paved
driveway located on public property

M= Clearance under veranda, porch, deck,
or balcony

Notes:
1. In accordance with the current ANSI Z223.1 / NFPA 54 National Fuel Gas Code.
2. In accordance with the current CAN/CGA-B149 Installation Codes.
3. Permitted only if veranda, porch, deck, or balcony is fully open on a minimum of two sides beneath the floor.
4. For clearances not specified 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 specified in CAN/CGA-B149, clearance is in accordance with local installation codes and the requirements of the gas
supplier.
6. IMPORTANT: terminal must be placed such that it remains a minimum 12" above expected snow line. Local codes may have more
specific requirements, and must be consulted.

*When vent terminal is less than 10 feet (3m) horizontally
from a forced air inlet, the terminal must be at least 3 feet
(0.9m) above the air inlet.

Figure 12. Combustion Air and Vent Through Side Wall.

Brute LX

3.3.3 Vertical Vent Terminal

When the unit is vented through the roof, the vent must
extend at least 3 feet (0.9m) above the point at which it
penetrates the roof. It must extend at least 2 feet (0.6m)
higher than any portion of a building within a horizontal
distance of 10 feet (3.0m), and high enough above the
roof line to prevent blockage from snow. When the
combustion air is taken from the roof, the combustion
air must terminate at least 12" (30cm) below the vent
terminal (see Figure 11).

3.3.4 Vertical Combustion Air Terminal

When combustion air is taken from the roof, a fieldsupplied rain cap or an elbow arrangement must be
used to prevent entry of rain water (see Figure 11). The
opening on the end of the terminal must be at least 12"
(30cm) above the point at which it penetrates the roof,
and high enough above the roof line to prevent blockage
from snow. When the vent terminates on the roof, the
combustion air must terminate at least 12" (30cm) below
the vent terminal.

3.3.5 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 finished 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 gasfitter
shall observe that a hard-wired carbon monoxide
detector with an alarm battery back-up is installed on the
floor level where the gas appliance is to be installed. In
addition, the installing plumber or gasfitter 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 qualified 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

Page 15

adjacent floor 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
certified.
3. Signage. A metal or plastic identification plate
shall be permanently mounted to the exterior of the
building at a minimum height of eight (8) feet above
grade directly in line with the exhaust vent terminal
for horizontally vented gas fueled heating appliance
or equipment. The sign shall read, in print no less than
one-half (1/2) inch in size: "GAS VENT DIRECTLY
BELOW, KEEP CLEAR OF ALL OBSTRUCTIONS".
4. Inspection
The state or local gas inspector of the side-wall
horizontally vented gas fueled appliance shall not
approve the installation unless, upon inspection, the
inspector observes carbon monoxide detectors and
signage installed in accordance with the provisions of
248 CMR 5.08(2)(a) 1-4.

Page 16

BRADFORD WHITE CORP.

3.4 Common Vent Test
NOTE: This section does not describe a method for
common venting Brute LX units. It describes what
must be done when an existing unit is removed from a
common vent system.
Brute LX units require special vent systems and fans for
common vent. See Section 3.2.1 or contact the factory
if you have questions about common venting Brute LX
units.

NOTICE

At the time of removal of an existing boiler, the following
steps shall be followed with each appliance remaining
connected to the common venting system placed
in operation, while the other appliances remaining
connected to the common venting system are not in
operation.
1. Seal any unused openings in the common venting
system.
2. Visually inspect the venting system for proper size and
horizontal pitch and determine there is no blockage or
restriction, leakage, corrosion and other deficiencies
which could cause an unsafe condition.
3. Insofar as 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.
4. Place in operation the appliance being inspected.
Follow the lighting instructions. Adjust thermostat so
the appliance will operate continuously.
5. Operate the main burner for 5 minutes then,
determine if the cut-draw overflows to the discharge
opening. Use the flame of a match or a candle or the
smoke of a cigarette, a cigar or a pipe
6. Once it has been determined, according to the
method indicated above, that each device connected
to the drainage system is placed in the open air in
an adequate manner. Install the doors and windows,
fans, the registers of chimneys and gas appliances to
their original position
7. Tout mauvais fonctionnement du système d'évacuation
commun devrait être corrigé de façon que l'installation
soit conforme au National Fuel Gas Code, ANSI
Z223.1/NFPA 54 et (ou) aux codes d'installation CAN/
CSA-B149.1. Si la grosseur d'une section du système
d'évacuation doit être modifiée, le système devrait
être modifié pour respecter les valeurs minimales des
tableaux pertinents de l'appendice F du National Fuel
Gas Code, ANSI Z223.1/NFPA 54 et (ou) les codes
d'installation CAN/CSA-B149.1

AVIS

Au moment du retrait d'une chaudière existante, les
mesures suivantes doivent être prises pour chaque
appareil toujours raccordé au système d'évacuation
commun et qui fonctionne alors que d'autres appareils
toujours raccordés au système d'évacuation ne
fonctionnent pas:
1. Sceller toutes les ouvertures non utilisées du système
d'évacuation.
2. Inspecter de façon visuelle le système d'évacuation
pour déterminer la grosseur et l'inclinaison horizontale
qui conviennent et s'assurer que le système est
exempt d'obstruction, d'étranglement, de fuite,
de corrosion et autres défaillances qui pourraient
présenter des risques.
3. Dans la mesure du possible, fermer toutes les
portes et les fenêtres du bâtiment et toutes les
portes entre l'espace où les appareils toujours
raccordés au système d'évacuation sont installés et
les autres espaces du bâtiment. Mettre en marche
les sécheuses, tous les appareils non raccordés au
système d'évacuation commun et tous les ventilateurs
d'extraction comme les hottes de cuisinière et les
ventilateurs des salles de bain. S'assurer que ces
ventilateurs fonctionnent à la vitesse maximale. Ne
pas faire fonctionner les ventilateurs d'été. Fermer les
registres des cheminées.
4. Mettre l'appareil inspecté en marche. Suivre les
instructions d'allumage. Régler le thermostat de façon
que l'appareil fonctionne de façon continue.
5. Faire fonctionner le brûleur principal pendant 5 min
ensuite, déterminer si le coupe-tirage déborde à
l'ouverture de décharge. Utiliser la flamme d'une
allumette ou d'une chandelle ou la fumée d'une
cigarette, d'un cigare ou d'une pipe.
6. Une fois qu'il a été déterminé, selon la méthode
indiquée ci-dessus, que chaque appareil raccordé
au système d'évacuation est mis à l'air libre de
façon adéquate. Remettre les portes et les fenêtres,
les ventilateurs, les registres de cheminées et les
appareils au gaz à leur position originale.
7. Tout mauvais fonctionnement du système d'évacuation
commun devrait être corrigé de façon que l'installation
soit conforme au National Fuel Gas Code, ANSI
Z223.1/NFPA 54 et (ou) aux codes d'installation CAN/
CSA-B149.1. Si la grosseur d'une section du système
d'évacuation doit être modifiée, le système devrait
être modifié pour respecter les valeurs minimales des
tableaux pertinents de l'appendice F du National Fuel
Gas Code, ANSI Z223.1/NFPA 54 et (ou) les codes
d'installation CAN/CSA-B149.1

Page 17

Brute LX

SECTION 4.
Gas Supply and Piping

WARNING:

Open flame can cause gas to ignite and result in
property damage, severe injury, or loss of life.

4.1 Gas Supply and Piping

Gas piping should be supported by suitable hangers or
floor stands, not the appliance.
Review the following instructions before proceeding
with the installation.
1. Verify that the appliance is fitted for the proper type
of gas by checking the rating plate. Brute LX will
function properly without the use of high altitude
modification at elevations up to 10,000 feet (3050
m).
2. The maximum inlet gas pressure must not exceed
13" W.C. (3.2kPa). The minimum inlet gas pressure
is 4" W.C. (1.0kPa).
3. Refer to Table 11, Table 10, Table 9 and Table 12 to
size piping.
4. Run gas supply line in accordance with all
applicable codes.
5. Locate and install manual shutoff valves in
accordance with state and local requirements.
6. A sediment trap must be provided upstream of the
gas controls.
7. All threaded joints should be coated with piping
compound resistant to action of liquefied 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.

NOTE: The Brute LX appliance and all other gas
appliances sharing the gas supply line must be firing at
maximum capacity to properly measure the inlet supply
pressure. The pressure can be measured at the supply
pressure port on the gas valve. Low gas pressure could
be an indication of an undersized gas meter, undersized
gas supply lines and/or an obstructed gas supply line.

SCHED 40 METAL PIPE CAPACITY FOR 1.50 SPECIFIC GRAVITY
UNDILUTED PROPANE

NOMINAL PIPE SIZE @ 11" W.C. INLET AND 0.5" W.C. PRESSURE DROP
SIZE
LENGTH

1/2"

3/4"

MAXIMUM CAPACITY IN THOUSANDS OF BTU PER HOUR

200

418

787

137

287

541

110

231

434

197

372

100

175

330

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 9.

Nominal Pipe Size, Propane

SCH 40 METAL PIPE CAPACITY FOR 0.60 SPECIFIC GRAVITY NATURAL GAS

NOMINAL PIPE SIZE @ 0.30" W.C. PRESSURE DROP
LENGTH
FT

1/2"

3/4"

CUBIC FEET OF GAS PER HOUR

190

350

130

245

105

195

170

100

Table 10. Nominal Pipe Size, Natural Gas

Page 18

BRADFORD WHITE CORP.

SECTION 5.
Pump Capacity

Brute LX NATURAL GAS REQUIRED

SIZE

CU FT / HR INPUT RATE.

50
75
100
125
150
175
220

5.1 Brute LX Heating System
Capacity

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 fittings used according to Table 6B. Align total length (pipe and
fittings) on left side column of Table 6C with highest cubic feet of gas required.
NOTES: Consult and confirm with Applicable Fuel Gas Code before
beginning work. Verify gas inlet pressure is between 4 and 13 in W.C.
before starting boiler.

Table 11. Natural Gas Required

EQUIVALENT LENGTHS OF STRAIGHT PIPE FOR TYPICAL SCH 40 FITTINGS

NOMINAL PIPE SIZE

1/2"

FITTING

3/4"

LINEAR FEET

90° ELBOW

3.6

4.4

5.2

TEE

4.2

5.3

6.6

Table
12.11Equivalent Pipe Lengths.
Table
DHW Performance Data

At various cold water inlet temperatures
Model:

125

GPM
2
3
4
5
Model:

100
79
59
48

150

GPM
4
5
6
8

150
50

GPM
3
4
6
8
Model:

125

95
71
48
36

175

175
50
83
67
55
42

Inlet Temp F
60
Temp Rise F
97
77
58
46

70
95
75
56
45

Pump

Brute LX's internal pump is sized for a maximum of
30 ft total equivalent pipe. Bradford White strongly
recommends the unit to be piped in primary/secondary
fashion, or use a low loss header/hydraulic separator.
Please contact Bradford White for further application
details.

SECTION 6.
Water Connections
6.1 Central Heat System Piping
NOTE: This appliance must be installed in a closed
pressure system with a minimum of 12 psi (82.7kPa)
static pressure at the boiler.

Hot water piping should be supported by suitable
hangers or floor stands. Do not support piping with this
appliance. Due to expansion and contraction of copper
pipe, consideration should be given to the type of hangers
used. Rigid hangers may transmit noise through the
system resulting from the piping sliding in the hangers.
It is recommended that padding be used when rigid
hangers are installed. Maintain 1" (2.5cm) clearance to
combustibles for hot water pipes.
Pipe the discharge of the pressure relief valve (full size)
to a drain or in a manner to prevent injury in the event of
pressure relief. Minimum fill pressure must be 12psig
(82.7kPa). Install shutoff valves where required by code.
CAUTION

Inlet Temp F
60
Temp Rise F
92
69
46
35

Inlet Temp F
60
Temp Rise F
81
65
54
40

Table 13. DHW, Performance Data.

70
90
68
45
34

70
79
63
53
39

PRV (included) must be installed immediately at boiler
outlet with no valves between. Use PRV adapter pipe
(included) for bottom connections or add PRV directly
to the top of boiler with pipe coupling.
__________________________________________

ATTENTION

PRV (inclus) doit être installé immédiatement à sortie
chaudière avec pas de vannes entre. Utiliser le PRV
tuyau adaptateur (inclus) pour les connexions bas ou
ajouter PRV directement vers le haut de la chaudière
avec raccord de tuyau.
__________________________________________

Suggested piping diagrams are shown on the following
pages. These diagrams are meant only as a guide.
Components required by local codes must be properly
installed.

Page 19

Brute LX

Brute LX's efficiency is higher with lower return
water temperatures.
Bradford White strongly recommends that Brute LX
be piped in a primary-secondary fashion (using either
piping or a hydraulic separator) such that the pump that
is mounted on the boiler ONLY serves the boiler.
Brute LX boiler must be located within 15 feet (4.6m)
of the supply and return header (or the hydraulic
separator). The pump is sized for a maximum of 30 feet
(9.1m) of piping and the headloss of the boiler only.
The system designer should take into account allowable
boiler temperature rise of 65°F (36°C) Maximum.

6.2 Cold Water Make-Up

1.
Connect the cold water supply to the inlet
connection of an automatic fill valve.
2.
Install a suitable back flow preventer between
the automatic fill valve and the cold water supply.
3.
Install shut off valves where required.
The boiler piping system of a hot water heating boiler
connected to heating coils located in air handling
appliances where they may be exposed to refrigerated
air circulation, must be equipped with flow control
valves or other automatic means to prevent gravity
circulation of the boiler water during the cooling cycle.
A boiler installed above radiation level, or as required
by the authority having jurisdiction, must be provided
with a low water cutoff device at the time of boiler
installation.

6.3 Freeze Protection

Brute LX units are certified for indoor use only, and are
not design-certified for placement outdoors.
Proper precautions for freeze protection are
recommended for boiler installations in areas where the
danger of freezing exists.
Power outage, interruption of gas supply, failure of
system components, activation of safety devices, etc.,
may prevent a boiler from firing. Any time a boiler is
subjected to freezing conditions, and the boiler is not
able to fire, and/or the water is not able to circulate,
there is a risk of freezing in the boiler or in the pipes
in the system. When water freezes, it expands which
may result in bursting of pipes, or damage to the boiler,
which could result in leaking or flooding conditions.
Do not use automotive antifreeze or ethylene
glycol. To help prevent freezing, Bradford White
recommends the use of inhibited propylene glycol
concentrations between 20% and 35% glycol. Typically,
this concentration will serve as burst protection for
temperatures down to approximately -5°F (-20°C).
If temperatures are expected to be lower than -5°F
(-20°C), glycol concentrations up to 50% can be used.

NOTE: Bradford White supplied pumps are not all
capable of maintaining the reduced temperature rise
required with glycol concentrations greater than
35%.

NOTICE

Different glycol products may provide varying
degrees of protection. Glycol products must be
maintained properly in a heating system, or they may
become ineffective. Consult the glycol specifications,
or the glycol manufacturer, for information about
specific products, maintenance of solutions, and set
up according to your particular conditions.

6.4 Recognized Chemicals

The following manufacturers offer glycols, inhibitors,
and anti-foamants that are suitable for use in the Brute
LX. Please refer to the manufacturers instructions for
proper selection and application.
1.
2.
3.

Sentinel Performance Solutions Group
Hercules Chemical Company
Dow Chemical Company

6.5 Domestic Hot Water Piping (BLXC)

Connect domestic hot and cold water piping to the
boiler at locations noted in Figure 14. Expected DHW
performance is indicated in Table 13.
Use of flow restrictor is optional to prevent colder water
at excessive flow rates. Contact Bradford White for
alternate configurations.

6.6 Indirect Water Heater Piping

The BLXH model can control an indirect water heater
zone. Pipe to the locations shown in Figure 14. Setpoint
is made via aquastat or sensor well located on the
indirect water heater, or can be controlled at the boiler
via a remote sensor. See Section 9 for control details.
Sensor, Bradford White PN E2337501

Page 20

BRADFORD WHITE CORP.

6.7 Condensate Drain

A condensate drain trap is built into the Brute LX.
Connect a 3/4” PVC pipe between the drain connection
and a condensate neutralizer before entering drainage
system.
The condensate drain and included trap must be
installed. 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.

Figure 13. DHW Connections with Anti-Scald Valve
and Flow Restrictor.

CAUTION

Condensate is mildly acidic (pH=5), and may harm some floor 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.
Contact Bradford White to order Kit# A2123601
__________________________________________________________________________________________

Page 21

Brute LX

CAUTION
Scalding Risk: Bradford White recommends
the use of a thermostatic mixing
valve at domestic hot water
outlet (boiler location) to
reduce potential for scalding.
Contact Bradford White for
recommended models.

6.8 Piping Schematics

Expansion tank and auto feed

Air Eliminator

Heating
Supply

*
*
*
*
*
Figure 14. Hydronic Piping — High and low temp zones.

* Closely spaced tee's - 4 pipe diameters apart

Sediment
trap

Heating
Return

_____________________________________________

Mascot LX - residential high and low temp. zones

Figure 14 through Figure 19 illustrate typical piping
configurations for Brute LX boilers. These diagrams
are only meant as a guide. All components or piping
required by local code must be installed.

Expansion tank and auto feed

Heating
Supply

1" piping to DHW

Sediment
trap

Heating
Return

* Closely spaced tee's - 4 pipe diameters apart

Air Eliminator

*
*

Figure 15. Hydronic Piping (only) — with an indirect tank as a zone.

18"
heat
trap

Indirect DWH Tank

Page 22

BRADFORD WHITE CORP.

Zones with:
-zone valves 24V
-balancing valves

DHW

Sediment trap

check valve

* Closely spaced tee's - 4 pipe diameters apart

*
Purge/drain valves

1-41"
Primary
loop

Expansion
tank and auto
feed

Air seperator

Multi Mascot LXs for Large house
residential with long / muliple baseboard
zones

check valve

DHW

Brute LX
Page 23

Figure 16. Hydronic Piping — BLXC Multi boilers for large homes with long / multiple baseboard zones.

Zones with:
-zone valves 24V
-balancing valves

Note: Expansion tank may be required
if system volume is over 50 gallons

Sediment trap

*
* Closely spaced tee's - 4 pipe diameters apart

Purge/drain valves

1-41"
Primary
loop

Expansion tank and auto feed

Page 24

BRADFORD WHITE CORP.

Figure 17. Hydronic Piping — BLXC Multi boilers for large homes with long / multiple radiant zones.

Figure 18. Hydronic Piping — BLXC Heating zones piped with zone pumps.

Sediment trapSediment trap

Purge/drain
valves
Purge/drain valves
1 41"
Primary
loop

Water Feed controls
Water Feed controls

1 41"
Primary
loop

DHW

3
1
3
1
Increase fromIncrease
4 to 1 4 from 4 to 1 4

* Closely spaced
* Closely
tee's spaced
- 4 pipe tee's
diameters
- 4 pipe
apart
diameters apart

air vent

Expansion tank
Expansion tank

Manifold sizeManifold
based onsize based on
number of zones
number
required
of zones required

air vent

DHW

3
1
3
1
Increase fromIncrease
4 to 1 4 from 4 to 1 4

Mascot
Mascot
LX Combi
LX Combi
-Hydronic
-Hydronic
pipingpiping
-Heating
-Heating
zoneszones
pipedpiped
with Zone
with Zone
pumps
pumps

Manifold sizeManifold
based onsize based on
number of zones
number
required
of zones required

Brute LX
Page 25

Figure 19. Hydronic Piping — Heating zones piped with zone valves.

Manifold size based
Manifold
on size based on
number of zones
number
required
of zones required

to 1

air vent

3
4

1
4

1 41"
Primary
loop

DHW

Sediment trap Sediment trap

1 41"
Primary
loop

DHW

Purge/drain valves
Purge/drain valves

* Closely spaced
* Closely
tee's - 4spaced
pipe diameters
tee's - 4 pipe
apartdiameters apart

Expansion tankExpansion tank

air vent

Increase from 34Increase
to 1 41 from

Mascot
Mascot
LX Combi
LX Combi
-Hydronic
-Hydronic
pipingpiping
-Heating
-Heating
zoneszones
piped piped
with Zone
with valves
Zone valves

Manifold size based
Manifold
on size based on
number of zones
number
required
of zones required

Page 26

BRADFORD WHITE CORP.

Page 27

Brute LX

SECTION 7.
Electrical Connections
WARNING

The appliance must be electrically grounded in
accordance with the requirements of the authority having
jurisdiction or, in the absence of such requirements, with
the latest edition of the National Electrical Code, ANSI/
NFPA 70, in the U.S. and with latest edition of CSA
C22.1 Canadian Electrical Code, Part 1, in Canada. Do
not rely on the gas or water piping to ground the metal
parts of the boiler. Plastic pipe or dielectric unions may
isolate the boiler electrically. Service and maintenance
personnel, who work on or around the boiler, may be
standing on wet floors and could be electrocuted by an
ungrounded boiler. Electrocution can result in severe
injury or death.

Single pole switches, including those of safety controls
and protective devices must not be wired in a grounded
line.
All electrical connections are made on the terminal
blocks that are located inside the control panel.
NOTE: All internal electrical components have been
prewired. No attempt should be made to connect
electrical wires to any other location except the terminal
blocks.

CAUTION

Label all wires prior to disconnection when servicing
controls. Wiring errors can cause improper and
dangerous operation. Verify proper operation after
servicing

CAUTION

Brute LX supply voltage must not be disengaged,
except for service or isolation, or unless otherwise
instructed by procedures outlined in this manual. To
signal a call for heat, use the 24V DC field-interlock,
as shown in the wiring diagram(s).

7.2 Pump Connections

Brute LXC energizes boiler pump (opens 3-way valve),
and system pump upon a demand for Central Heat.
Brute LXH energizes boiler pump and system pump
upon a central heat demand
The combined load for all pumps must not exceed
5 amps. In some installations, a pump relay may be
required.

7.3 24Vac Transformer with Circuit Breaker

24Vac is supplied by a transformer mounted behind the
lower door. All 24Vac power is supplied through a 2A
circuit breaker located behind lower door.

7.4 Central Heat - Call for Heat

Connect the Call for Heat to terminals #5 and #6
(connections labeled "T-T or interlock").

7.5 Outdoor Air Temperature Sensor

Connect the outdoor air temperature sensor to
connections labeled "Outdoor sensor." The outdoor air
temperature sensor is used for warm weather shutdown
and outdoor reset. If an outdoor sensor is not installed,
the CH setpoint of the boiler is limited to 140°F.

7.6 Domestic Hot Water Connection

For indirect water heater, connect aquastat for remote
sensor to terminals #7 & #8 or domestic hot water
sensor to terminals #9 & #10 (see Figure 21).
Domestic Hot Water Sensor PN is E2337501

7.7 System Sensor

Connect the system sensor to connections labeled
"system sensor" on lead boiler only. #3 and #4

7.8 External Control Connections
7.1 Main Power

Plug power cord into a non-switched 115V electrical
outlet with 15A circuit protection. FLA is 2A. There
is an internal 10A breaker to protect internal system
components.

If the unit is being controlled by an external 0-10VDC
signal, connect this to terminals 11 and 12. When
making the connections, follow the polarity designations
shown on the label. A "dry" alarm contact is located on
terminals 10 and 11 at high voltage panel (backside).
Note: The 0-10VDC signal may be to send a modulation
signal, or a temperature setpoint signal to the boilers
from a building management program (See Section 9).

Page 28

BRADFORD WHITE CORP.
REVISIONS
ECN

REV.

7.9

DRAFT

14-016N-08

JM 5-22-14

CHECK

ENG

CD 5

Ladder Diagram, Connections, and Wiring Diagrams
CHANGE: GRAPHIC CORRECTION

(see Figure 20 thru Figure 22)

120VAC

NEUTRAL

PWB

PWB-3

PWB-2

PWB-1

ON/0FF
SWITCH
CIRCUIT
BREAKER
BLOWER
MAIN CONTROL
800mA

X3-4

24VDC X3-12
SUPPLY

X3-5 PWB-4

F1
X3-6 PWB-6

X3-7 PWB-8

5A
X11-7
X2-3

BOILER PUMP X3-14,PWB-7

DHW PUMP
R
RELAY

X3-15,PWB-9

IMPORTANT NOTE
Maximum COMBINED load
on Terminals PWB 4, 6
and 8 shall NOT exceed
5 Amps

X3-8

RK WIRE

SYSTEM PUMP X3-13,PWB-5
R
RELAY

X11-14
X2-6

120 VAC
24 VAC

USED ON LABEL H2365
Figure 20. Ladder Diagram.
UNLESS OTHERWISE SPECIFIED:
TOLERANCES ARE:
DECIMALS .X .1 FRACTIONS 1/8"
DECIMALS .XX .03

DO NOT SCALE DRAWING.
THIRD ANGLE PROJECTION.
DIMENSIONS ARE IN INCHES.

Brute LX

3.00

Page 29

OUTDOOR
SENSOR

23-

SYSTEM
SENSOR

45-

T-T

67-

1- GROUND
2- NEUTRAL

TANK
AQUASTAT

3- LINE

DHW
SENSOR

1011 +

4- SYS PMP
5- NEUTRAL

DC IN

12 -

6- DHW
PMP

13 +

DC OUT

14 -

15- GROUND

8- BOILER PMP

16- GND
17-A
18-B

MOD
BUS

SAFETY
INTERLOCK

1011-

ALARM
CONTACT

12- SPARE

H2366001C

20-

9- NEUTRAL

H2366000C

19-

7- NEUTRAL

Low Voltage
Field Connections
(located on the front of
the inside lower panel)

High Voltage
Field Connections
(located behind the
inside lower panel)

Shown at
actual size

Figure 21. Field Wiring Connections

21 W

Y
G

FWB

FACE DOW N

SAFETY O
INTERLOCK

MODBUS

GND

GROUND

DC OUT

DC IN

+
+
-

DHW
SENSOR

TANK
AQUASTAT

FIELD T
INTERLK T

SYSTEM
SENSOR

OUTDOOR
SENSOR

BK
GY

FROM X8

LINE

DHW PUMP
RELAY

SYSTEM PUMP
RELAY
PUMPS BY OTHERS
WHEN REQ'D

R
BOILER
PUMP

FROM PWB

PWB

FACE UP

SPARE

ALARM
CONTACTS

W/GY

NEUT W
Y

COMBI UNITS ONLY

3 WAY VALVE

G
G

R
BK

BL
BR

W/V

GY
Y

W
BL

V
O

FROM FWB

HI LIM IT
SW ITC H

G
Y
GY
R

G
W

LINE BK

NEUT

WATER
PRESSURE
SWITCH

R
Y

10 5

Y
W
G

CIRCUIT
BREAKER

COMBI ONLY
FLOW
SENSOR

BK
W

TRANSFO RM ER

GAS VALVE

BK
R

CIRCUIT
BREAKER

TO/FROM X3

W/R

NEUT W

LINE

L1 IN

NEUTRAL

GROUND

FRO M X6

W
O

Y
Y

X12

Y/R
R

FROM XO

BLOCKED
VENT SW

FLOW
SWITCH

12
6

8
1

LOW
WATER
CUT OFF

OPTIONAL

INLET
PROBE

FLUE
TEM P

2
4

1
3

1 2
5

X8
8

FROM FWB

WIRE DIAGRAM

1 2

1 2
4

2
3

POWER
SWITCH

2
4

1
3

FLUE
OPER.
SAFETY CONTROL

XX
MALE
(TO XO)

SAFETY
LIMIT

DISPLAY
HARNESS
(E23579)

MAIN CONTROL

X11

W
G

BRUTE LX

BLOWER

FRO M X4
FRO M H-X/DHW SENSO R

AIR
PRESSURE
SWITCH

O
O
Y
GY

O
O
O
O

O
O
BR

O
R
V

W
G

BL
Y

BK
V
BK
V

R
BR

V
R

O
O
R
G

BR
V

FROM X11

O
O
V
BL

FROM X5

O
GY
BL
G

BL
BK/R

FROM X1

R
W
Y
V
O

R
BL
Y

W/GY
GY

O
Y
BK

W/V
V

1
8

GY BL

H-X/DHW
SENSOR

FROM FWB

BK
W
G

BK/R

W/R
R
O
W

FLAME
SENSOR

XO
FEMALE
(TO XX)

BR/G
R
G
R

BR/G
V
BL

W
BK
Y
GY
BK

O
BR
BL
BK/R

SPARK
IGNITOR

H2365100D

G
Y

Figure 22. Wiring Diagram.
V
BR

Page 30

BRADFORD WHITE CORP.

Page 31

Brute LX

SECTION 8.
Control Setup and Operation
sensors. The control regulates the boiler set temperatures
and operating modes. For typical heating and DHW
operation, the control is programmed to give priority to
domestic hot water. The control is setup using the User
Interface which contains 5 buttons and a digital display.

The Brute LX control is an integrated electronic control
that includes flame control, safety device monitoring
and pump regulating functions. The control regulates
the heat input by controlling the blower speed and
activating the gas valve. The board controls the ignition
sequencing and monitors signals received by all boiler

BRUTE LX
Up
(next)
Looping
Scroll

Down
(next)

On/Off
Power

Reset

Cancel

SELECT / OK

Temperature and
Pressure Gauges

Figure 23. The User Interface

The User Interface is located on the one panel of
the Brute LX that is not removable. It contains all the
buttons and gauges that are necessary to contol and
monitor the unit. See Figure 23

8.1 Digital Display

The centerpiece of the User Interface is the Digital
Display. All of the needed parameters of the Brute LX
can be viewed and monitored on this Digital Display.
All controls can be adjusted using the SELECT / OK
button and the Up and Down arrows.

Descriptions of the icons used in the display are
shown in Figure 24.

Page 32

BRADFORD WHITE CORP.

Up
(next)

Looping
Scroll

Down
(next)

9
Reset

Cancel

SELECT / OK

Figure 24. Display Icons

These icons and numbers are always displayed (either outlined or 'Darkened')
1- Current or set temperature, parameter number, modulation percentage.
2- Set temperature, parameter value, error code, announcement code.
3- Temperature unit (will show either Fahrenheit or Celsius).
4- Percentage or temperature set point.
5-

Icon 1 displays the flue temperature when 'Darkened'.

6- Icon 1 displays inlet temperature when arrow up is 'Darkened',
outlet temperature when arrow down is 'Darkened',
differential (outlet –inlet) temperature when both arrows are 'Darkened'.
7- DHW/Tank temperature, System temperature, Outdoor temperature.
When respective probe is present, the icon outline will be outlined. When the respective temperature
will be displayed, the icon inner part will be 'Darkened'.
8-

Heat input in five steps (20%, 40%, 60%, 80%, 100%).

Will be visible when,
9- Heat demand is active.
10- External demand is active (e.g. cascade master or 0-10V input).
11- DHW demand is active.
12- Service is required or when in installer mode.
13- Summer mode is present (only DHW request will be satisfied).
14- Boiler is in lockout.
15- Revolutions Per Minute (fan speed, shows only in Service Mode).

8.2 CONTROLLER Modes
Three control modes can be displayed: USER,
INSTALLER, and SERVICE.
USER Mode is for a homeowner or service technician
to adjust the most common operating parameters
(See Table 14).

INSTALLER Mode allows an installer access to
all of the parameters for installation, setup, and
reconfiguration of the boiler.
SERVICE mode is used only by trained Brute LX
technicians.

Page 33

Brute LX
8.3 USER Mode

The USER Mode is for a homeowner or service technician to adjust the most common operating parameters (See
Table 14). In the USER Mode, when the boiler is ON and operating normally, the USER can scroll Up and Down
using the Arrow Keys. Of the 7 viewable parameters, 4 can be adjusted (depending on if they are installed). The USER
adjustable parameters are the Outlet Temp, DHW Setpoint, and Outdoor Air Temp. If the System Setpoint is installed, it
can be adjusted, but then the Outlet Temperature can no longer be adjusted.
These parameters can be adjusted in the USER Mode by pressing the 'Select/OK' button (while in that parameter)
and then using the Up and Down arrows to set to the desired temperature.
Once the desired parameter is displayed, always press 'Select/OK' again to Save that setting.
Setpoint (°F)
Parameter

Description

Range

Default

Outlet
Temp

Outlet Temperature is displayed as well as the 'darkened'
arrow pointing away from boiler icon.
The boiler setpoint (CH) can be changed by pressing 'Select/
OK' until 'Set' is displayed. Use the Arrows to adjust to the
desired Outlet temperature and then press 'Select' to Save.

45 - 189

130

Inlet Temp

Inlet Temperature is displayed as well as the 'darkened'
arrow pointing towards boiler icon

Delta T

Delta T is the temperature difference between the outlet
and inlet. The temperature difference is displayed and both
arrows below boiler icon become 'darkened'.

Stack
Temp

The Stack Temperature is displayed and the box on top of
the boiler icon is 'darkened'.

DHW
Setpoint

If the DHW Sensor is installed, Domestic Hot Water Temperature
is displayed and the the faucet icon will be 'darkened'. The
DHW setpoint can be changed by pressing 'Select' until 'Set'
is displayed on the left. Use the Arrows to adjust to the desired
temperature and then press 'Select' to Save.

68 - 189

120

System
Setpoint

If a System Sensor is installed, it will over-ride the Outlet
Temp, and the System Setpoint will be displayed and the
radiator (system) icon 'darkened'. The system setpoint can
be changed by pressing 'Select'. Use the Arrows to adjust to
the desired temperature and then press 'Select' to Save.

45-189

130

Outdoor
Air Temp

If the Outdoor Air Temperatue Sensor is installed, the house
icon (showing the outdoor sensor) becomes 'darkened' and
the Outdoor Air temperature is displayed.

Table 14.

Display

User Mode Displays.

Laars SIT Parameters BRADFORD WHITE CORP.

Page 34

USER
MODE
8.4
INSTALLER
Mode

CIRCULATION PUMPS

BMS

ANTICYCLING & FLAGS

Control

Service

User settings

Description
DEFAULT
PARAMETER
Param
INSTALLER
Mode is an extensive set of parameters
again. The INSTALLER
Mode Parameters will then
that can
be changed
to suit
the individual installation and
be accessible by pressing
U000
DHW
set point
120 °Fthe Up or Down arrows.
USHW
shouldU001
only be accessed
by a trained service technician or
(See Table 15 and Table
US1S
CH set point
130 °16)
F
installer.
To change the value15
of that parameter, press
USPW
U002
Installer Password
To access the INSTALLER Mode, hold
Select/OK
button
again.
The
parameter
will
blink.
U003 and the
DUI1
Display
60 sec
'Select/OK'
downtimeout
˅ arrow key simultaneously
Pressing the Up or Down arrows will increase or
U004
Unit
temperature
(F
/
C)
°
F
DUI2
until U00 is displayed. Press 'Select/OK' again and then
decrease the parameter value. The value will be
release. Change the value to 15 and then press 'Select/OK'
= dhw
Temp
confirmed by pressing Select/OK button D00
and the
blink
INSTALLER MODE
DEFAULT
PARAMETER Description
Param
P01
Service notification months
12
SERVI
P02
SERVI
Service notification hours since last service
8760
P03
SERVI
Service notification cycles
500
* displayed as secondsTMAX
P04
Timeout for service mode
180 secs
P06
Cascade address and configuration
-1
CASC
P07
Cascade temperature set point
140 ° F
CASC
P08
Cascade temperature offset
10 ° F
CASC
P09
Cascade temperature hysteresis from offset
20 ° F
CASC
shows 300
P11
min time a bic must remain on or off
30 sec
CASC
min next on time
60 sec
CASC
shows 600
P12
P23
Anti cycling time
30 sec
TANTI
Anti cycling dropoff temperature on s2
10 °F
ANTIC
P24
P25
0-10V to Power (fan speed)
Enabled
FUNCF
P26
0-10V to outlet setpoint
Disabled
FUNCF
Enabled = NO / DisableFUNCF
P27
Alarm contact configuration
Enabled
P28
DHW demand blocks system pump Enable / Disable
Disabled
FUNCF
P29
System Pump Always On Enable / Disable
Disabled
FUNCF
0-10V Input - Enable / Disable
Enabled
FUNCF
P30
shows 200
P31
BMS Voltage at Minimum
2 VDC
V010A
shows 1000
P32
BMS Voltage at Maximum
10 VDC
V010B
shows 100
P33
On threshold Voltage
1 VDC
V010O
shows 50
P34
On hysteresis Voltage
.5 VDC
V010H
shows 200
P35
BMS Rate at Minimum Voltage
20%
V010A
shows 1000
P36
BMS Rate at Maximum Voltage
100%
V010B
P37
BMS Temperature Setpoint at Minimum Voltage
70 °F
V010A
BMS Temperature Setpoint at Maximum Voltage
180 °F
V010B
P38
P39
Postcirculation time CH pump
30 sec
TPCIR
P40
Postcirculation time DHW pump
30 sec
TPCIR
P41
Postcirculation time System pump
30 sec
TPCIR
P42
Summer kick CH pump timer
20 sec
SKICK
P43
Summer kick DHW pump timer
20 sec
SKICK
P44
Summer kick System pump timer
20 sec
SKICK
P45
Delta T Setpoint for CH pump speed control
20 °F
CHPM
Minimum output voltage for CH pump output
3.5 VDC
CHPM
shows 350
P46
P47
Differential Max Fan Speed for DHW demand
0 RPM
MAXF
P48
Differential Maximum Fan Speed for CH demand
0 RPM
MAXF
Table 15.

Installer Parameters (part 1)

Page 1

Page 35

Table 16.

0 min
55 min
180 ° F
0°F
6°F
12 ° F
20 ° F
60 ° F
140 ° F
45 ° F
37 ° F
5°F
25 ° F
180 ° F
70 ° F
120 ° F
90 ° F
5°F
32 ° F
190 ° F
10 ° F
20 ° F

FROST PROTECTION &
OUTDOOR RESET

CH Priority time over DHW
DHW Priority time over CH
DHW tank setpoint
Stop DHW tank demand offset
Start DHW tank demand offset
Block DHW demand (combi) offset
Unblock DHW demand (combi) offset
Minimum user setting DHW set point
Maximum user setting DHW set point
Frost protection s tart pump temperature
Frost protection start burner temperature
Frost protection stop burner hysteresis
Low outdoor air temperature for heat curve
High setpoint for heat curve
High outdoor air temperature for heat curve
Low setpoint for heat curve
Outside temperature disabling CH demand
Outside temperature disabling CH hysteeresis
Minimum user setting CH set point
Maximum user setting CH set point
Block offset CH demand
Block hysteresis CH demand

TEMP.
SETTINGS

P49
P50
P51
P52
P53
P54
P55
P56
P57
P58
P59
P60
P61
P62
P63
P64
P65
P66
P70
P71
P72
P73

DHW SETTINGS

Brute LX

SW
* displayed as secondsSW
HW
HW
HW
HW
HW
CM
CM
FR
FR
FR
HC
HC
HC
HC
HC
HC
CM
CM
CH
CH

Installer Parameters (part 2)

will stop.
The parameter value will return to the previous
setting if you press the Cancel button.
Otherwise, Exit INSTALLER Mode by pressing
and holding 'Select/OK' for 3 seconds.

8.5 SERVICE Mode
The Brute LX Series of appliances has been
designed with a SERVICE Mode of operation
intended for servicing and troubleshooting of the
unit by a Brute LX trained service technican.
‘SERVICE' Mode can be activated by pressing
and holding the 'Select/OK' button and ‘Up Arrow’
simultaneously for five seconds. With an active call
for heat, the boiler will light and run at 100% of firing
rate. The boilers input can be adjusted in 20% rate
increments by pressing the ‘Up’ or ‘Down’ Arrows. You
can also toggle between Maximum Rate and Minimum
Rate by pressing the 'Select/OK' button. To exit
SERVICE Mode depress and hold the 'Select/OK' button
for five seconds.

NOTE: There must be an active call for heat given
to the appliance for Service Mode to allow the
boiler to start. When the Service Mode is exited,
the boiler will continue to run until the call is either
satisfied or removed.

8.6 Modulation Control

The control uses a PID algorithm to adjust the firing
rate of the boiler as the control point is approached.
Pagegoal
2 of the control is to operate at a minimum
The
firing rate to match the load on the appliance.

8.7 Pump Control

The boiler pump is active anytime there is a call for
heat applied to the control. When there is a central
heat call the system pump relay is active. If there
is a DHW call while the central heat call is active
the system pump turns off. This happens because of
domestic hot water priority, which forces the control
to satisfy the domestic water demand prior to the
hydronic demand. When the last heat demand is
satisfied the boiler pump enters an overrun time.

Page 36

8.8 High Limit

The control uses a dual thermistor sensor to monitor the
Brute LX's maximum temperature. The high limit sensor
is installed in the outlet water. A dual thermistor sensor
is used, so that the two temperatures can be monitored
and compared to confirm accuracy. The control will
automatically reduce the firing of the Brute LX to
prevent the high limit from tripping. The high limit
setpoint is not adjustable.

8.9 Stack Temperature

The stack temperature is a dual thermistor sensor
and is limit rated. The control compares each of the
temperature readings to determine accuracy. The stack
sensor is used as a limiting feature to avoid excessive
temperatures in the venting.

8.10 Domestic Hot Water Temperature

The domestic hot water temperature sensor is used to
control the DHW temperature. The DHW setpoint can
be adjusted through the Base / Home state and the User
Mode. On LX ‘C’ or Combi models, the DHW sensor
is pre-installed in the DHW exchanger. On LX ‘H’ or
Heat models the DHW can be can be controlled by an
aquastat or optional DHW sensor installed in an indirect
tank.

BRADFORD WHITE CORP.

SECTION 9.
OPERATION Modes
To access the setup parameters for configuring different
Operation Modes, the installer level password most be
used according to section 8.4.

9.1 Hydronic Heating Demand

When using the Brute LX for hydronic heating a call
for heat must be supplied to the "T-T or Interlock"
terminals. Once the call is supplied the control energizes
the boiler pump, the system pump relay, shifts the
3-way valve position and begins the ignition process.
The ignition process consists of a prepurge, trial for
ignition, and run period. The prepurge period starts
once the fan RPM reaches a preset level. The trial for
ignition period follows. The trial for ignition period lasts
4 seconds during which the direct spark ignition system
and gas valve are energized. At the end of the trial for
ignition period the flame signal is compared with the
preset flame threshold value. If the flame signal is higher
than the flame threshold the Brute LX enters "run". If
the flame signal is below the threshold the Brute LX
returns to prepurge and starts the ignition process over.
In "run" the Brute LX monitors the flame signal, call for
heat, safeties, and water temperatures and modulates as
needed between 100% and 20% of rate to satisfy the call
for heat.

9.2 Hydronic Heating with Outdoor Reset

Outdoor reset varies the control setpoint based on the
outdoor temperature. The reset function works as shown
in Figure 25. When the outdoor air temperature reaches
P61 "high outdoor temperature setpoint” the control
point setting is adjusted to P62 “low boiler temperature
setpoint”. When the outdoor air temperature reaches P63
“low outdoor temperature setpoint” the control setpoint
is adjusted to P64 “high boiler temperature”.

9.3 Hydronic Heating Using External
Modulation Control (BMS)

The Brute LX can accept a 0-10 VDC input to
integrate with a building management system or external
modulating control. Utilizing Installer Parameters P31
“BMS Voltage at minimum” and P32 ”BMS voltage
at maximum” the installer can set the minimum and
maximum input voltages. By default this input is
enabled but can be disabled using Installer Parameter
P30 “0-10v Input Enable / Disable”.
The Brute LX can use an external 0-10VDC signal to
control its fan speed (modulation rate), or to control its

Page 37

Brute LX
outlet setpoint. The 0-10V signal may also be used to
create a heat demand eliminating the need to supply a
separate “TT call”.
9.3.a External Signal to Control Modulation.
Installer Parameter P25 “0-10V to Power (fan speed)”
– This is the default 0-10VDC configuration in which
the external signal directly corresponds to fan speed
or ‘boiler power’ In this mode, the call is initiated by
the 0-10v input based on Installer Parameters P33 “On
threshold voltage” and P34 “Off hysteresis voltage”.
The modulation power can also be scaled with P35
“BMS rate at minimum voltage” and P36 “BMS rate at
maximum voltage”.
9.3.b External Signal to Control Setpoint.
Installer Parameter P25 “0-10v BMS modulation
control” must be disabled – In this mode the 0-10VDC
input directly controls the boiler's outlet temperature.
Set the parameters using the Installer Parameters P37
“ BMS Temperature setpoint at minimum voltage” and
P38 “BMS temperature setpoint at maximum voltage”

9.5.b Boiler only DHW aquastat demand
For Boiler only units (BLXH), an indirect water heater
can be piped-in. An aquastat in the indirect water heater
connected to terminals 7 and 8 will signal demand for
DHW. In this demand mode the boiler will modulate on
the outlet water temperature sensor and use P51 “DHW
setpoint (S1 – Tank) as the setpoint.
9.5.c Boiler only DHW sensor demand
An optional DHW sensor (Bradford White PN
E2337501) can also be installed in an indirect water
heater connected to terminals 9 and 10 to initiate demand.
In this mode the tank sensor will control demand and
modulation based on the DHW setpoint. In the case of
indirect heaters the boiler will also modulate on the outlet
water temperature sensor and use P51 “DHW setpoint
(S1 – Tank) as the setpoint.
The service person should note the minor wiring
differences on Figure 22.

9.3.c External Signal Initiates Heat Demand
In this mode P26 “0-10V BMS Thermostat Demand
Required” must be disabled to eliminate the need for
a separate “TT Call”. This allows a heat demand to be
created every time the 0-10V signal exceeds P33 “BMS
On Volts”. The heat demand will remain until the 0-10V
signal drops below P33 “BMS On Volts” – P34 “BMS
Demand Off Differential Voltage”

9.4 Warm Weather Shutdown

Warm weather shutdown overrides a central heat
call when the outdoor air temperature is greater than
the warm weather shutdown setpoint. Warm weather
shutdown is always active when there is an outdoor
sensor attached to the control. The warm weather
shutdown setpoint can be adjusted in Installer mode,
using P65 “CH outdoor Air Shutdown Temperature” and
P66 “CH Outdoor Air Shutdown Differential”.

9.5 Domestic Hot Water Demand
9.5.a Combi Boiler DHW
For Combi units (BLXC), DHW demand is triggered
by a flow sensor located near the DHW cold water inlet.
When water begins to flow (open faucet, shower, etc.),
the boiler will fire, based on the water temperature
requirements. It may cycle on and off under very low
flow rates. Minimum flow is 0.5 gpm.

Figure 25. Outdoor Reset Setpoint Temperatures.

9.6 Domestic Hot Water Priority

DHW priority is used to allow the CH call to be
interrupted when there is a DHW call. This allows
the boiler to use the full capacity to satisfy hot water
demands without interruptions. From the factory the
default settings give priority to DHW for 55 minutes
before switching to satisfy the CH demand. To adjust
navigate to installer parameter P50 “ DHW priority
over CH” and adjust the time as required.
At the end of the DHW priority period the
boiler will switch to CH priority to supply heat to the
building. The boiler remains in this state until P49,
“CH priority time over DHW” expires. To adjust
navigate to installer parameter P49 and adjust the time
as required.

Page 38

9.7 Cascade Auto Configuration

To operate up to 8 boilers in cascade, the boilers
must be “daisy chained” together using Modbus
terminals A, B and GND, located on the boilers
terminal block. The wiring should be completed with at
least three wire shielded cable with ground. The ground
wire should be connected to a suitable chassis ground
on one end of the daisy chain only. Wire each boilers
terminal A in series with the next boilers terminal A
until all are connected. Repeat this process for Terminal
B and GND.
To configure the control system, identify which
boiler is going to be the “master” boiler for the cascade
system and navigate to installer parameter P06,
“Cascade Address”. Set the address to “0” and press
and hold “select”. When “auto cfg” appears on the
display press “select” to start the auto configuration
process. The auto configuration process will find all
boilers connected to the “master” boiler and assign
addresses. When auto configuration is complete the
display should show “boilr #” where # is the total
number of boilers found in the cascade system.
The final steps are to set the individual setpoints
in the cascade system, which include P07 “Cascade
Setpoint”, P08 “Cascade off Hysteresis” and P09
“Cascade on hysteresis”. These variables must be set
to the appropriate values for the installation. When
setting P09 “cascade on hysteresis” the value should
NOT be less than P08 “Cascade off Hysteresis” as
P09 references the off point (P07+ P08) as the starting
point for the on hysteresis. An example of this is shown
below.
Correct settings:
P07 = 120°F
P08 = 10°F
P09 = 20°F
With these setting the modulation point is 120°F
The off point is 120°F + 10°F = 130°F
The on point is 130°F – 20°F = 110°F
Incorrect settings:
P07 = 120°F
P08 = 10°F
P09 = 5°F
With these setting the modulation point is 120°F
The off point is 120°F + 10°F = 130°F
The on point is 130°F – 5°F = 125°F
In this case the boiler is turning back on prior to
reaching the modulation point, which could lead to
short cycling.

BRADFORD WHITE CORP.
9.7.1 Cascade Manual Configuration
In some applications it may be necessary to configure the
cascade system manually. To do this, the boilers should
be wired as shown in the Auto Cascade section of the
manual. Then each individual control in the cascade
must have a specific address assigned by adjusting P06
“ Cascade address” on each boiler. To start, identify
the boiler that will be the “master” boiler. Navigate to
parameter P06 “cascade address” set to “0” and press
“Select” (do NOT press and hold select). Then press and
hold select.
Repeat this process for each boiler in the cascade setting
each address to a unique number.
The last step is to adjust all of the setpoints for the
installation application as shown in the Auto cascade
section of the manual.

Page 39

Brute LX

SECTION 10.
Set Up Instructions

10.1 Filling the Boiler System

1. Ensure the system is fully connected. Close all
bleeding devices and open make-up water valve.
Allow system to fill slowly.
2. Move manual lever on 3-way valve actuator to
"open" position, allowing air to purge from boiler
loop. Valve is normally in DHW position until
there is a call for Central Heat via "T-T" contacts. If
make-up water pump is employed, adjust pressure
switch on pumping system to provide a minimum
of 12 psi (81.8 kPa) at the highest point in the
heating loop.
3. If a water pressure regulator is provided on the
make-up water line, adjust the pressure regulator
to provide at least 12 psi (81.8 kPa) at the highest
point in the heating loop.
4. Open bleeding devices on all radiation units at the
high points in the piping throughout the system,
unless automatic air bleeders are provided at such
points.

Note that there is an air bleed located on the
left side of Brute LX, on top of the jacket.
5. Cycle the boiler pump on and off 10 times, 10
seconds on and 10 seconds off to remove all air
from the heat exchanger. Then run system and
appliance pump for a minimum of 30 minutes with
the gas shut off.
6. Using manual lever located on left side of 3-way
valve actuator, move from "open" position back to
closed position repeatedly. This process forces air
out of the internal DHW loop.
WARNING
Failure to remove all air from the heat exchanger could
lead to property damage, severe injury or death.

7. Recheck all air bleeders as described in Step 4.
8. Start up boiler according to the procedure in this
manual. Operate the entire system, including the
pump, boiler, and radiation units for one (1) hour.
9. Shut down the entire system and vent all radiation
units and high points in the system piping, as
described in Step 4.
10. Close make-up water valve and check strainer in
pressure reducing valve for sediment or debris from
the make-up water line. Reopen make-up water
valve.
11. Check gauge for correct water pressure and also
check water level in the system. If the height
indicated above the boiler insures that water is at

the highest point in the circulating loop, then the
system is ready for operation.
12. Refer to local codes and the make-up water valve
manufacturer’s instructions as to whether the makeup water valve should be left open or closed.
13. After placing the unit in operation, the ignition
system safety shutoff device must be tested.
First, shut off the manual gas valve, and call the
unit for heat. Main gas terminals will be energized,
attempting to light, for four (4) seconds, and then
will de-energize. The unit will go into lockout after
the required number of trial for ignition periods.
Second, turn the power off, press the manual reset
button on the boiler control, or the user display,
open the manual gas valve and allow the unit to
light. While the unit is operating, close the manual
gas valve and ensure that power to the main gas
valve has been cut.
14. Within three (3) days of start-up, recheck all air
bleeders and the expansion tank as described in
Steps 4 and 8 above.
Important Note: The installer is responsible for
identifying to the owner/operator the location of all
emergency shutoff devices.

WARNING

Do not use this appliance if any part has been under
water. Immediately call a qualified service technician
to inspect the appliance and to replace any part of
the control system and any gas control that may have
been under water.

10.2 Starting the Burner after Set Up

Initial setup must be checked before the unit is put
in operation. Problems such as failure to start, rough
ignition, strong exhaust odors, etc. can be due to
improper setup. Damage to the boiler resulting from
improper setup is not covered by the limited warranty.

10.2.1 Burner Operation

REQUIRED TOOLS: Allan Key Set (English), Screw

drivers, and combustion analyzer.
1. Using this manual, make sure the installation
is complete and in full compliance with the
instructions and all local codes.
2. Determine that the appliance and system are filled
with water and all air has been bled from both.
Open all valves.

3. Observe all warnings on the Operating
Instructions (Start Up / Shut Down
Instruction ) Decal, located on the back of
the Top Front Cover, and turn on gas and
electrical power to appliance.

Page 40

BRADFORD WHITE CORP.

4. Brute LX will enter the start sequence. Blower and
pump will energize for pre-purge, then the ignition
sequence starts. After all safety devices are verified,
the gas valve opens. If ignition doesn’t occur, turn
off the Brute LX, check that there is proper gas
supply. Wait 5 minutes and start the unit again.
5. Turn Brute LX on.
6. After placing the appliance in operation, the
Burner Safety Shutoff Device must be tested:
(a) Close gas shutoff valve with burner operating.
(b) Flame will go out and blower will continue to run
for the post purge cycle. One or three additional
attempts to light will follow including pre-purge,
ignitor on, valve/flame on and post purge. Ignition
will not occur as the gas is off. The ignition control
will lockout.
(c) Open gas shutoff valve. Reset the boiler control
by pressing the RESET button on the control or
on the display. Restart the appliance. The ignition
sequence will start again and the burner will start.
The appliance will return to its previous mode of
operation.
CAUTION

Should any odor of gas be detected, or if the gas
burner does not appear to be functioning in a normal
manner, CLOSE MAIN SHUTOFF VALVE. Do not
shut off switch. Contact your heating contractor, gas
company, or factory representative.

10.2.2 Boiler Setup and Adjustment

1. Measure the CO2 in the flue products at high fire.
The Brute LX can be forced to high fire to allow
for easier setup. Refer to Section 8 for instructions
on how to access the forced rate menu. The CO2
readings should be between the range shown in
Table 17. If the CO2 is not within the range shown,
adjustments may be made. To adjust the high fire
CO2, locate the high fire adjuster screw (see Figure
26). Using a 2.5 mm Hex wrench, slowly make
adjustments in 1/16 of a revolution increments
until the CO2 is within the range identified.
(see Figure 26)
2. Measure the CO2 in the flue products at low fire.
Brute LX can be forced to low fire to allow for
easier setup. Refer to Section 8 for instructions on
how to access the forced rate menu. CO2 readings
should be between the range shown in Table 17. If
the CO2 is not within the range shown, adjustments
may be made. To adjust the low fire CO2, locate
the low fire adjuster screw. Using a 4 mm Hex
wrench, slowly make adjustments in 1/16 of a
revolution increments until the CO2 is within
the range identified. (see Figure 26)

3. Repeat steps 1 and 2 to confirm that the CO2 ranges
are within the required ranges. High and Low
Fire CO2 settings should be approximately equal.
Adjust if necessary.
If any CO2 readings cannot be adjusted to the
specified ranges (see Table 17), please consult the
factory for further information.
WARNING

Improper adjustment may lead to poor combustion
quality, increasing the amount of carbon monoxide
produced. Excessive carbon monoxide levels may
lead to personal injury or death.

10.3 Shutting Down Brute LX

1. Turn off the main electrical disconnect switch.
2. Close all manual gas valves.
3. If freezing is anticipated, drain Brute LX and be
sure to also protect building piping from freezing.
All water must be removed from heat exchanger
and condensate trap or else damage from freezing
may occur.
This step to be performed by a qualified service person.

10.4 To Restart Brute LX

If drained, go back to Section 10 in this manual for
proper filling and purging, prior to continuing.
1. Turn off the main electrical disconnect switch.
2. Close all manual gas valves.
3. WAIT FIVE (5) MINUTES.
4. Set the aquastat or thermostat to its lowest setting.
5. Open all manual gas valves.
6. Reset all safety switches (pressure switch, manual
reset high limit, etc.).
7. Set the temperature controller to the desired
temperature setting and switch on electrical power.
8. Burner will go through a prepurge period and
ignitor warm-up period, followed by ignition.

Page 41

Brute LX

Note: H
igh and Low Fire CO2 settings
should be approximately equal.

Adjustment Screws on
Gas Valve
Close door first, before
measuring CO2 Range

High-fire
setting
Manifold
Pressure
Screw
(under cap)

Figure 26. Adjustment Screws and Settings for CO2

GAS TYPE

Natural
Propane

CO2 (%) RANGE

)

8.9 __ 9.9
9.9 __ 10.9

Table 17. CO2 Range and Pressure Settings.

Low-fire
setting

Page 42

BRADFORD WHITE CORP.

SECTION 11.
Maintenance
WARNING

Disconnect all power to the appliance before
attempting any service to the appliance. Contact with
electricity can result in severe injury or death.

11.1 System Maintenance

(yearly, unless otherwise noted)
1. If a strainer is employed in a pressure reducing
valve or the piping, clean it every six months.
2. Inspect the venting system for obstruction or
leakage at least once a year. Periodically clean the
screens in the vent terminal and combustion air
terminal (when used).
3. Keep the appliance area clear and free from
combustible materials, gasoline, and other
flammable vapors and liquids.
4. If the appliance is not going to be used for extended
periods in locations where freezing normally
occurs, it should be isolated from the system and
completely drained of all water.
5. Low water cutoffs, if installed, should be checked
every year. Float type low water cutoffs should be
flushed periodically.
6. Inspect and clean the condensate collection system
yearly.
7. When a means is provided to neutralize condensate,
ensure that the condensate is being neutralized
properly.
8. Removal of burner and inspection of combustion
coil and flue passages is required at least once a
year. Clean with a soft bristle brush / vacuum or
wash with water if necessary. Sooting and buildup
on the coils is an indication of improper set up and
poor combustion. Determine the cause and make
corrections.
9. Inspect the vent system and air intake system, and
ensure that all joints are sealed properly. If joints
need to be resealed, completely remove existing
Garlock sealing material, and clean with alcohol.
Apply new sealing material, and reassemble.

11.2 Appliance Maintenance and
Component Description

Brute LX gas and electric controls are engineered for
long life and dependable operation, but the safety of
equipment depends on their proper functioning. Only
a qualified service technician should inspect the basic
items listed below every year:

a. Appliance control
b. Automatic gas valve
c. Pressure switches
d. Blower
e. Pump

f. Flow switch
g. Low water cutoff
h. Burner
i. Heat exchanger

11.2.1 Burner

Check the burner for debris. Remove the blower
assembly to access the burner. Remove the 4 bolts
connecting the blower Pull burner up and out. Clean
burner, if necessary, by blowing compressed air from
the outside of the burner into the center of the burner,
and wipe the inside of the burner clean with glass
cleaner. A dirty burner may be an indication of improper
combustion or dirty combustion air. Determine the
cause, and correct. If damaged, replace the burner gasket
when replacing the burner.
NOTE: When installing the burner, make sure the flange
is aligned with the mating surface, as each is keyed to
control fit.

11.2.2 Appliance Control

Brute LX has an integrated control that incorporates
manual reset high limit control, operating temperature
control, modulating control, ignition control, outdoor
reset control, pump control and many other features. If
any of these features are thought to be defective, please
consult the factory for proper trouble shooting practices
prior to replacing the control. If control replacement is
required, turn off all power to the appliance and shut off
all manual gas valves to the appliance. Remove the front
door to the appliance and the control panel plastic bezel.
Remove all wire connections from the control board.
The control board connections are keyed to only allow
connection in the proper location, but proper handling
techniques should be used to avoid damage to the
wiring or connectors. To remove the control push in on
the two tabs on the left side of the board to unlatch the
clips from the control panel. Rotate the control around

Use only genuine Bradford White replacement parts.

ATTENTION

CAUTION

Label all wires prior to disconnection when servicing
controls. Wiring errors can cause improper and
dangerous operation. Verify proper operation after
servicing.

Au moment de l'entretien des commandes, étiquetez
tous les fils savant de les débrancher. Les erreurs de
câblage peuvent nuire au bon fonctionnement et être
dangereuses. S'assurer que l'appareil fonctionne
adéquatement une fois l'entretien terminé.

Page 43

Brute LX
the fastening points on the right side of the control to
remove the hooks from the control panel. To replace
the control repeat the steps above in the reverse order
making sure to connect all wires in the proper location.
Place the appliance in operation following the steps
outlined in Section 10.

11.2.3 Ignitor Assembly

The ignitor assembly is a two rod system that consists
of a ground rod and a sense rod. To remove the ignitor
assembly, shut off the 120 Volt power supply to the
appliance. Turn off all manual gas valves connecting the
appliance to the main gas supply line. Remove the front
door of the boiler to gain access to the ignitor assembly.
Remove the two wires connected to the assembly. Then
remove the two bolts connecting the ignitor assembly
to the burner door. Remove and replace the old ignitor
assembly gasket. Reinstall a new ignitor assembly in
the reverse order if the old assembly is determined
defective. Replace gasket if necessary.

11.2.4 Flame Sensor

The flame sensor is a single rod system. To replace the
flame sensor electrode, shut off the 120 Volt power
supply to the boiler. Turn off all manual gas valves
connecting the boiler to the main gas supply line.
Remove the front door of the boiler to gain access to
the flame sensor electrode. Remove the flame sensor
wire from the electrode. Remove the two bolts fastening
the electrode to the boiler top. Remove and replace the
old flame sensor gasket. Reinstall a new flame sensor
electrode in the reverse order if the old electrode is
determined defective.

CAUTION

Igniters and sensors get hot and
can cause burns or injury.

11.2.5 Blower

The combustion air blower is a high-pressure centrifugal
blower with a variable speed motor. Speed of the motor
is determined by the control logic. 120 Volts remain on
to the blower at all times. If a blower change is required,
turn off the 120 Volt power and gas supply to the unit.
Take the front panel off. Disconnect the 120 Volt and
control signal connections from the blower. Disconnect
the bolts connecting the venturi to the blower housing.
Disconnect the fan outlet bolts from the burner door
blower arm. If the fan is determined to be defective
replace the existing fan with a new one reversing the
steps above. Make sure to install all of the required
O-rings and gaskets between the blower arm and the
blower and blower face and venturi flange.

11.2.6 Heat Exchanger Coils

Black carbon soot buildup on the internal surfaces of
the heat exchanger is caused by one or more of the
following; incomplete combustion, combustion air
problems, venting problems and heater short cycling.
Soot buildup or other debris on the heat exchanger may
restrict the flue passages.
If black carbon soot buildup on the heat exchanger is
suspected, disconnect electrical supply to the unit, and
turn off the gas supply by closing the manual gas valve
on the unit. Access the heat exchanger through the
burner at the top of the boiler, and inspect the tubing
using a flashlight and a mirror. If there is a buildup of
black carbon soot or other debris on the heat exchanger,
clean per the following:

CAUTION

Black carbon soot buildup on a dirty heat exchanger
can be ignited by a random spark or flame. To prevent
this from happening, dampen the soot deposits with
a wet brush or fine water spray before servicing the
heat exchanger.

1. Shut off the 120 Volt power supply to the boiler
2. Turn off all manual gas valves connecting the boiler
to the main gas supply line.
3. Disconnect all blower wiring and gas valve piping.
4. Remove the four bolts connecting the blower flange
to the burner flange.
5. Remove the burner assembly from the heat
exchanger.
6. Disconnect the condensate drain line.
7. Attach a longer hose to drain and run to a bucket.
8. Clean the heat exchanger by brushing light
accumulations of soot and debris. Use a brush
with soft bristle (non metal) to avoid damaging the
surface of the heat exchanger tubes or refractory.

CAUTION
Be careful not to damage refractory material located
at top and bottom of heat exchanger.

9. Once the tubes have been brushed clean rinse the
tubes and combustion chamber with a small amount
of water to rinse all of the debris out of the bottom
of the flue collector and into the longer condensate
trap line, which is being diverted into a separate
container.
NOTE: The Warranty does not cover damage caused
by lack of required maintenance, lack of water flow,
or improper operating practices.

Page 44

BRADFORD WHITE CORP.

WARNING
Failure to rinse the debris from the heat exchanger
and temporary drain line may lead to clogged
condensate lines, traps and neutralizers. Condensate
pumps (if used) may also be damaged from the
debris left behind, possibly causing property damage.

10. Install all components removed in the reverse
order to place the appliance back in operation.
Make sure all gaskets are in place as components
are installed. Replace any damaged gaskets. Do
NOT reuse damaged gaskets.
11.

Place the appliance in operation according to
Section 10 checking all gas connections for leaks.
Confirm all fasteners are tight.

11.2.7 Gas Conversion

There are no parts or orifices required for the gas
conversion of the Brute LX. But if a gas conversion
is performed, the unit must be identified with the
appropriate gas labels and a conversion sticker to allow
technicians performing maintenance in the future to
properly identify the gas type of the appliance. These
stickers are included with the boiler during shipment.
Conversion to/from LP Gas Instructions:
1.

Open the front covers as described in Section 1
and Figure 1.

Place "Propane Gas" sticker over the "Natural
Gas" sticker (or vice versa) where the gas supply
line enters the appliance.

Fill out gas conversion sticker with all of the
required information and place adjacent to the
Rating Plate sticker (which is behind the center
door panel).

Confirm that the gas supply is turned on.

Start boiler per lighting procedure shown on inside
front cover or side of appliance.

With a combustion analyzer, check CO2 levels at
both maximum and minimum input.
Refer to sections Figure 26 and Table 17 of this
manual for the proper adjusting procedures.

Close all front covers.
WARNING

Serious injury or death could occur if CO2 levels are
not adjusted properly.
__________________________________________

WARNING

This conversion shall be installed by a qualified
service agency in accordance with the manufacturer's
instructions and all applicable codes and
requirements of the authority having jurisdiction. If
the information in these instructions is not followed
exactly, a fire, an explosion or production of carbon
monoxide may result causing property damage,
personal injury or loss of life. The
qualified service agency is responsible
for the proper and complete installation
of this kit. The installation is not proper
and complete until the operation of the
converted appliance is checked as specified in the
manufacturer's instruction supplied with the kit.

AVERTISSEMENT

Ce conversion doit être installé par un organisme de
service conformément aux instructions du fabricant
et tous les codes et les exigences de l'autorité
compétente. Si les informations contenues dans ces
instructions n'est pas suivi à la lettre, un incendie,
une explosion ou de la production de monoxyde
de carbone mais résultat causant des dommages
matériels, des blessures ou des pertes de vie. Le
service est responsable pour la bonne et complète
l'installation de ce kit. L'installation n'est pas correcte
et complète jusqu'à ce que le fonctionnement de
l'appareil converti est vérifiée comme spécifié dans le
manuel d'instruction fourni avec le kit.
3.0"

NATURAL
NATUREL

1.0"

H0011700F

Figure 27. Natural Gas Sticker

Figure 28. Propane Gas Sticker
3.50"
20 Industrial Way
Rochester, NH 03867

This boiler has been converted to use:
Converted
by:

Natural Gas
Propane

Date:
H2200500D

Figure 29. Gas Conversion Sticker

2.00"

Brute LX

SECTION 12.
Troubleshooting
12.1 Sequence of Operation

Brute LX is a cold start appliance that should start only
on a call for heat from a tank aquastat, room thermostat,
zone valve end switch or other space temperature
control device (flow switch for DHW).
1. Upon a call for heat: (a) the internal pump and
system pump will start; (b) the blower will begin a
short pre-purge.
2. Following the prepurge cycle the direct spark
ignition will spark and will begin a 4 second
trial for ignition. The unit is allowed one or three
ignition retries.
3. The gas valve will then be energized and a reduced
45% rate ignition will occur. The unit will remain
in the reduced rate start-up period for
ten (10) seconds.
4. After the reduced rate start time is over, the
unit will be in normal operation. Firing rate
will modulate based on the heating load via the
temperature controller settings and readings.
5. When the call for heat is complete, or the unit
reaches its setpoint temperature, the gas valve will
close, and the fan will continue to run for its postpurge. If a pump delay time is used, the pump will
continue to run for the specified amount of time
(adjustable from 0.1 to 10 minutes).

12.2 Short Cycling

Because Brute LX is a modulating boiler, and it's input
will decrease when there is a reduction in heating
load, short cycling is greatly reduced. If the heating
load drops below the minimum input of the boiler for
an extended period, the boiler will have a tendency to
short cycle. This can be a symptom of improper control
or piping layout. When in DHW mode under low load
conditions, the boiler will normally cycle more often,
but should not cycle frequently during call for central
heating.

Page 45

LOCKOUT CODES
CODE
DESCRIPTION
Page
E001 46 Memory error lockout
E002
Fan speed error
E003
Flame present when not in run
12.3
Codes
- See
E004 Error
Outlet
auto-reset
hi Table
limit 18.
E005
Water pressure switch error
LOCKOUT
CODESSwitch - TBD
E006
Safety
CODE
DESCRIPTION
E007
Optional low-water cutoff error
E008
Field Interlock
error
E001
Memory
error lockout
E009
Blocked
vent
switch (175C, 175H only at this time)
E002
Fan
speed
error
E010
Blocked
vent / when
fan proving
E003
Flame
present
not in switch
run error
Lockoutauto-reset
due to 3 consecutive
flame losses during run
E011
E004
Outlet
hi limit
E012
Lockoutpressure
due to 3switch
consecutive
E005
Water
error failed ignitions
E013
Flue high
temperature
E006
Safety
Switch
- TBD
E014
Outlet
temperature
E007
Optional
low-water
cutoff(manual
error reset hi limit)
LOCKOUT
CODEShigh
E015
Flue sensor
drift
too high
E008
Field
Interlock
error
CODE
DESCRIPTION
E016
Outlet sensor
drift
too
high 175H only at this time)
E009
Blocked
vent
(175C,
E001
Memory
errorswitch
lockout
E017
Flue
sensor
error
E010
Blocked
vent
/ fan proving switch error
E002
Fan
speed
error
Lockout
due toerror
3 consecutive
E018
Outlet present
sensor
E011
E003
Flame
when
not in runflame losses during run
E019
Inlet
sensor
error
E012
Lockout
due
to
3
consecutive
failed ignitions
E004
Outlet auto-reset hi limit
E013
Flue
high
temperature
E005
Water pressure switch error
E014
Outlet
high
temperature
(manual
reset hicapacity)
limit)
BLOCKINGSafety
CODESSwitch
(may
rate/heating
E006
-reduce
TBD input
E015
Flue
sensor
drift toocutoff
high error
CODE
DESCRIPTION
E007
Optional
low-water
E016
Outlet
sensor
too high
b01
General
(e.g. ifdrift
setpoint
reached or other not specified)
E008
Field
Interlock
error
E017
Flue
sensor
error
b02
Anticycling
E009
Blocked
vent switch (175C, 175H only at this time)
E018
Outlet sensor
b03
temperature
too high
E010
Blocked
vent /error
fan proving
switch error
E019
Inlet
b04
Deltasensor
T (Outlet-Inlet)
temperature
highduring run
Lockout
dueerror
to 3 consecutive
flametoo
losses
E011
b05
Flue temperature
too high failed ignitions
E012
Lockout
due to 3 consecutive
BLOCKING
CODES
reduce
b06
Line
voltage
too
low input rate/heating capacity)
E013
Flue
high(may
temperature
CODE
DESCRIPTION
E014
Outlet
high temperature (manual reset hi limit)
b01
General
(e.g.drift
if setpoint
E015
Flue
sensor
too highreached or other not specified)
NOTIFICATION
CODES
b02
Anticycling
E016
Outlet
sensor drift too high
CODE
DESCRIPTION
b03
Outlet
temperature
tootohigh
E017
Flue
sensor
error due
n01
Fan speed
limited
flue gradient not detected
b04
Delta
T
(Outlet-Inlet)
temperature
too high
E018
Outlet
sensor
error
n02
Fan speed limited due to outlet temperature
E019
Inlet
sensorlimited
error too
b05
Flue
temperature
n03
Fan speed
duehigh
to delta T (Outlet - Inlet)
b06
Line
voltagelimited
too low
n04
Fan speed
due to flue temperature
BLOCKING
CODES
(maynot
reduce
input
n05
DHW
sensor
present
in rate/heating
combi boiler. capacity)
HW call will be blocked
NOTIFICATION
CODES
CODE
DESCRIPTION
n06
Outdoor sensor not preset
CODE
DESCRIPTION
b01
General
(e.g. if setpoint reached or other not specified)
n01
Fan speed limited due to flue gradient not detected
b02
Anticycling
n02
Fan speed
limited due
outlet temperature
b03
Outlet
temperature
tootohigh
n03
Fan speed
limited duetemperature
to delta T (Outlet
- Inlet)
b04
Delta
T (Outlet-Inlet)
too high
n04
Fan speed
limited too
duehigh
to flue temperature
b05
Flue
temperature
b06
Line
n05
DHWvoltage
sensor too
not low
present in combi boiler. HW call will be blocked
n06
Outdoor sensor not preset
Table 18. Error
Codes
NOTIFICATION
CODES
CODE
DESCRIPTION
n01
Fan speed limited due to flue gradient not detected
n02
Fan speed limited due to outlet temperature
n03
Fan speed limited due to delta T (Outlet - Inlet)
n04
Fan speed limited due to flue temperature
n05
DHW sensor not present in combi boiler. HW call will be blocked
n06
Outdoor sensor not preset

BRADFORD WHITE CORP.

Brute LX

Page 47

Page 48

BRADFORD WHITE CORP.

SECTION 13.
Replacement Parts

13.1 Exploded Parts Views, and
their Bradford White Part
Numbers
See Figure 31
and Figure 32,
for blower and
combustion parts

43
44

47
46

26
40

13
34

38
35

4
41

5
6

3
Figure 30. Parts

2P2003

ef
2P9102

2P9103

2p2000
E2356900

2P7008

2P3002

2P2003

2P4000
2p2000

2P3003

2P4000
2P3001

2P3003

11
12
13
14
15
16
17
1
18
2
19
3
19
3
19
4
20
5
21
6
22
7
23
8
24
9
24
10
24
11
24
12
25
13
26
27
14
26
15
26
16
26
17
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26
19
26
19
26
19
20
27
27
21
28
22
28
23
28
24
29
24
30
24
31
24
32
25
33
26
34
27
26
35
26
37
26
38
26
39
26
40
26
41
26
41
27
42
27
43
28
44
28
45
28
46
46
29
46
30
47
31
47
32
33
34
35

P2074600
P2074500
E2357300
Brute
LX
E2357500
S2105400
2-Jun-14
12P2065
Part
#PN
Laars
S2124500
P2067603
S2127600
S2116300
RA2112400
AA2122500
2117500
R2076000
RA2114200
PV2022700
2093100
RW2013400
E2359000
RE2356900
W2014200
E2356800
W2014300
E2335100
RL2018401
E2318900
RL2018402
E2357200
RL2018403
P2074600
RL2018404
P2074500
S2127300
E2357300
S2127200
RW2013300
E2357500
05P2100
S2105400
07P2100
12P2065
10P2100
S2124500
12P2100
S2127600
15P2100
RA2112400
17P2100
A2122500
22P2100
RA2114200
V2022700
S2123800
S2125400
RW2013400
A2117700
W2014200
Call
Factory
W2014300
A2122600
RL2018401
A2122004
RL2018402
R
E2337501
RL2018403
F2027600
RL2018404
R
0021300
S2127300
S2115100
S2127200
RW2013300
E2357000
05P2100
A2117600
07P2100
E2335000
10P2100
E2357700
12P2100
12P7015
15P2100
12P3006
17P2100
12P3004
22P2100
12P3005
S2123800
12H5500
S2125400
500-168
A12H5501
2117700
Call
Factory
S2114000
EA2122600
2334702
E2334700
A
2122004
REE2334701
2337501
E2344901
F2027600
2312401
RE0021300
S2115100
E2357000
A2117600

SWITCH, LOW PRESSURE
VENT, AIR, AUTO
GROMMET, SENSOR, FLUE
SENSOR, OUTLET
GASKET, BLOWER/ FAN OUTLET
ADAPTER PLATE
Description
ORING, BLOWER INLET
PIPE,
PVC,VENTURI
3/4" SCHTO
40BLOWER
X 6" LONG
GASKET,
O-RING,
1" ID X 1-3/16"
BLOWER,-120,
COMBUSTION
50OD
- 75
TRAP,
CONDENSATE
BLOWER, COMBUSTION 100-125
TRAP
KIT, COMBUSTION
CONDENSATE150-220
- LARGE
BLOWER,
COUPLING,
VALVE, GAS,PIPE,
LHX SS, 1/2" NPT
FLOW
SENSOR
DHW
GASKET, FLAME- SENSOR
CONTROL
BOARD - w/Firmware
IGNITOR, SPARK
DISPLAY
UNIT
SENSOR, FLAME
CIRCUIT
2A
BURNER BREAKER,
50-75
CIRCUIT
10 AMP
BURNER BREAKER,
100
SENSOR,
DUPLEX,
FLUE
BURNER 125-175
SWITCH,
LOW PRESSURE
BURNER 220
VENT,
AIR,BURNER,
AUTO ABOVE FLANGE
GASKET,
GROMMET,
SENSOR,
FLUE FLANGE
GASKET, BURNER,
BELOW
SENSOR,
OUTLET
GASKET, IGNITOR
HEAT
EXCHANGER
50 OUTLET
GASKET,
BLOWER/ FAN
HEAT
EXCHANGER
75
ADAPTER PLATE
HEAT
100
ORING,EXCHANGER
BLOWER INLET
HEAT
EXCHANGER
125BLOWER
GASKET,
VENTURI TO
HEAT
EXCHANGER
150 50 - 75
BLOWER,
COMBUSTION
HEAT
EXCHANGER
175 100-125
BLOWER,
COMBUSTION
HEAT
EXCHANGER
220 150-220
BLOWER,
COMBUSTION
VALVE,
GAS,
LHX
HEAT EXCHANGER PLATE 125/150
HEAT
EXCHANGER
PLATE 175
GASKET,
FLAME SENSOR
PUMP
50-125
IGNITOR,
SPARK
PUMP
150FLAME
SENSOR,
PUMP
175-220
BURNER
50-75
3-WAY
VALVE,
BURNER
100 ACTUATOR
SENSOR,
TEMPERATURE, DHW
BURNER 125-175
WASHER,
SEALING, 1.19 OD X .79 ID
BURNER 220
TRANSFORMER,40VA,
115V/24V
GASKET, BURNER, ABOVE
FLANGE
O RING, 20.04
mm I.D.
X 27.10
mm O.D.
GASKET,
BURNER,
BELOW
FLANGE
SENSOR, IGNITOR
TEMPERATURE, INLET
GASKET,
HEAT
EXCHANGER
50
GAUGE,
PRESS/TEMP
HEAT EXCHANGER
75 AMBER
SWITCH,
ROCKER, 120V,
HEAT EXCHANGER
100 BUTTON
COVER,
DISPLAY, PUSH
HEAT EXCHANGER
125
PANEL,
MIDDLE
W/TREELOCK
HEAT
EXCHANGER
150
PANEL,
TOP LAARS
W/TREELOK
HEAT
EXCHANGER
175
PANEL,
BOTTOM SHORT
HEAT
EXCHANGER
220
PANEL,
BOTTOM LONG
HEAT
EXCHANGER
PLATE 125/150
ADAPTER,
VENT, CPVC
HEAT
PLUG,EXCHANGER
HEX, 1/8" NPTPLATE 175
PUMP
50-125
GASKET,
VENT ADAPTER, M2 125
PUMP
150
GROMMET
PUMP
175-220
SWITCH,
PRESSURE, FAN PROVING
SWITCH,
PRESSURE,
FAN PROVING
3-WAY
VALVE,
ACTUATOR
SWITCH, PRESSURE,
FAN DHW
PROVING
SENSOR,
TEMPERATURE,
SWITCH,
VENT
WASHER,PRESSURE,
SEALING, 1.19
ODPRESSURE
X .79 ID
SWITCH,
PRESSURE, VENT
PRESSURE
TRANSFORMER,40VA,
115V/24V
O RING, 20.04 mm I.D. X 27.10 mm O.D.
SENSOR, TEMPERATURE, INLET
GAUGE, PRESS/TEMP

x
x
x
x
x
x
50
x
x
xx
x
x
x
xx
x
x
x
x
x
x
x
x
x
x
x
x

x
x
x
x
x
x
75
x
x
xx
x
x
x
xx
x
x
x
x
x
x
x
x
x
x
x

x
x
x
x
x
x
100
x
x
x
xx

x
x
x
x
x
x
125
x
x
x
xx

x
x
xx
x
x
x
x
x
x
x
x
x
x
x

x
xx
xx
x
x
x
x
x
x
x
x
x
x
x
x

x
x

x
x
x
x
x

x
x
x
x
x
x
x
x
x
x
x
x
x
x

x
x
x
x
x

x
x
x
x
x
x
x
x
x
x
x
x
x
x

x
x

x
x
x
x

x
x
x
x
x
x
x
x
x
x
x
x

x
x
x
x

x
x
x
x
x

x
x
x
x
x
x
175

x
x
x
Page 49
x
x
x
220

xx
x
xx
xx
x
x
x
x
x
x
x
x
x
x

xx
x
x
xx
x
x
x
x
x
x
x
x
x
x

x
x

x
x
x
x

x
x
x
x
x
x
x
x
x

x
x
x
x
x
x
150

x
x
x
x
x
x
x
x
x
x
x

x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
xx
x
x
x

x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x

x
x
x
x
x
x

x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x

xx
x
x

Page 50

BRADFORD WHITE CORP.

19
15

24
23

22
27

Figure 31. Parts, Blowers and Combustion

E2356900

2P7008

2P3002

Ref
2P9102
2P2003

2P9103

E2356900

2P7008
2p2000

2P3002

2P2003

2p2000

2P4000

2P3003

2P4000

2P3001

6
RE2356900
7
E2356800
8 Brute
E2335100
LX
9
E2318900
10
E2357200
11
P2074600
12
P2074500
13
E2357300
2-Jun-14
Part
# PN
Laars
14
E2357500
1
P2067603
15
S2105400
2
S2116300
16
12P2065
3
AS2124500
2117500
17
3
R2076000
18
S2127600
4
P2093100
19
RA2112400
5
EA2122500
2359000
19
6
RE2356900
19
RA2114200
7
E2356800
20
V2022700
8
E2335100
21
RW2013400
22
W2014200
9
E2318900
23
W2014300
10
E2357200
24
RL2018401
11
P2074600
24
RL2018402
12
P2074500
24
RL2018403
13
E2357300
24
RL2018404
14
E2357500
25
S2127300
15
S2105400
26
S2127200
16
12P2065
27
RW2013300
17
S2124500
26
05P2100
18
S2127600
26
07P2100
19
RA2112400
26
10P2100
19
A2122500
26
12P2100
19
RA2114200
26
15P2100
20
V2022700
26
17P2100
21
RW2013400
26
22P2100
22
W2014200
27
S2123800
23
W2014300
27
S2125400
24
RL2018401
28
A2117700
24
RL2018402
28
Call Factory
24
RL2018403
28
A2122600
24
RL2018404
29
A
2122004
25
S2127300
30
RS2127200
E2337501
26
31
F2027600
27
RW2013300
32
R05P2100
0021300
26
33
S07P2100
2115100
26
34
E

2357000
26
10P2100
35 Figure
A2117600
26
12P2100
32.
37
E2335000
26
15P2100
38
E2357700
26
17P2100
39
12P7015
26
22P2100
40
12P3006
27
S2123800
41
12P3004
27
S2125400
41
28
A12P3005
2117700
42
12H5500
28
Call
Factory
43
500-168
28
A2122600
44
29
A12H5501
2122004
45
30
RSE2114000
2337501
46
E
2334702
31
F2027600
46
E2334700
32
R
0021300
46
E
33
S2334701
2115100

CONTROL BOARD - w/Firmware
DISPLAY UNIT
CIRCUIT BREAKER, 2A
CIRCUIT BREAKER, 10 AMP
SENSOR, DUPLEX, FLUE
SWITCH, LOW PRESSURE
VENT, AIR, AUTO
GROMMET, SENSOR, FLUE
Description
SENSOR,
OUTLET
PIPE,
PVC,
3/4" SCHFAN
40 XOUTLET
6" LONG
GASKET, BLOWER/
O-RING,
-120,
1"
ID
X
1-3/16"
OD
ADAPTER PLATE
TRAP,
CONDENSATE
ORING, BLOWER INLET
TRAP
KIT,VENTURI
CONDENSATE
- LARGE
GASKET,
TO BLOWER
COUPLING,
PIPE, SS, 1/2" 50
NPT
BLOWER, COMBUSTION
- 75
FLOW
SENSOR
- DHW 100-125
BLOWER,
COMBUSTION
CONTROL
BOARD - w/Firmware
BLOWER, COMBUSTION
150-220
DISPLAY
UNITLHX
VALVE, GAS,
CIRCUIT
2A
GASKET,BREAKER,
FLAME SENSOR
CIRCUIT
IGNITOR,BREAKER,
SPARK 10 AMP
FLAME FLUE
SENSOR, DUPLEX,
BURNER 50-75
SWITCH,
LOW PRESSURE
BURNER
100
VENT,
AIR,
AUTO
BURNER 125-175
GROMMET,
SENSOR, FLUE
BURNER 220
SENSOR,
OUTLET
BURNER, ABOVE
FLANGE
GASKET, BLOWER/
FAN OUTLET
GASKET,
ADAPTERBURNER,
PLATE BELOW FLANGE
GASKET,
IGNITORINLET
ORING, BLOWER
HEAT
EXCHANGER
50 BLOWER
GASKET,
VENTURI TO
HEAT
EXCHANGER
75
BLOWER,
COMBUSTION
50 - 75
HEAT
EXCHANGER
100
BLOWER, COMBUSTION 100-125
HEAT
EXCHANGER
125 150-220
BLOWER,
COMBUSTION
HEAT
VALVE,EXCHANGER
GAS, LHX 150
HEAT
EXCHANGER
175
GASKET,
FLAME SENSOR
HEAT
EXCHANGER
IGNITOR,
SPARK 220
HEAT
EXCHANGER
SENSOR,
FLAME PLATE 125/150
HEAT
EXCHANGER
PLATE 175
BURNER 50-75
PUMP
50-125
BURNER
100
PUMP
150125-175
BURNER
PUMP
175-220
BURNER
220
3-WAY
VALVE,
ACTUATOR
GASKET,
BURNER,
ABOVE FLANGE
SENSOR, BURNER,
TEMPERATURE,
GASKET,
BELOWDHW
FLANGE
WASHER,
SEALING,
1.19
OD
X .79 ID
GASKET, IGNITOR
TRANSFORMER,40VA,
HEAT
EXCHANGER 50 115V/24V
O RING,
20.04 mm I.D.
HEAT
EXCHANGER
75X 27.10 mm O.D.
SENSOR,
TEMPERATURE,
HEAT EXCHANGER 100 INLET
GAUGE,
PRESS/TEMP
HEAT
EXCHANGER
125
Blower
for
models
50, 75, 100, and 125
SWITCH,
ROCKER, 120V,
HEAT EXCHANGER
150 AMBER
COVER,
DISPLAY, PUSH
HEAT EXCHANGER
175 BUTTON
PANEL,
MIDDLE
HEAT
EXCHANGER
220
PANEL,
TOP LAARS PLATE
W/TREELOK
HEAT
EXCHANGER
125/150
PANEL,
BOTTOM SHORT
HEAT
EXCHANGER
PLATE 175
PANEL,
BOTTOM LONG
PUMP 50-125
ADAPTER,
PUMP 150 VENT, CPVC
PLUG,
HEX, 1/8" NPT
PUMP 175-220
GASKET,
VENTACTUATOR
ADAPTER, M2 125
3-WAY
VALVE,
GROMMETTEMPERATURE, DHW
SENSOR,
SWITCH,
FANOD
PROVING
WASHER,PRESSURE,
SEALING, 1.19
X .79 ID
SWITCH,
PRESSURE, FAN
PROVING
TRANSFORMER,40VA,
115V/24V
SWITCH,
PRESSURE,
PROVING
O RING, 20.04
mm I.D. FAN
X 27.10
mm O.D.

x
x
x
x
x
x
x
x
50
x
x
xx
xx

x
x
x
x
x
x
x
x
75
x
x
xx
xx

x
x
x
x
x
x
x
x
x
x
x
x
x

x
x
x
x
x
x
x
x
x
x
x
x

x
x
x
x
x
x

x
x
x
x
x
x
x
x
100
x
x
xx
xx

x
x
x
x
x
x
x
x
125
x
x
xx
xx

x
x
x
x
x
x
x
x
x
x
x
x
x

x
x
x
x
x
x
x
x
x
x
x
x
x
x

x
x
x
x
x
x
x
x
175
x
x
x

x
x
Page
x 51
x
x
x
x
x
220
x
x
x

xx
x
x
x
x
x
x
x
x
x
x
x
x
x
x

x
x
x
x
x
x
x
x
x
x
x
x

x
x
x
x
x

x
x
x
x
x
x

x
x
x
xx
x

x
x
x
x
x
x
x
x
x
x
x
x

x
x
x
x
x
x
x
x
x
x
x

x
x
x
x
x
x
x
x
x
x
x
x
x

x
x
x
x
x
x
x
x

x
x
x
x
x
x
x
x
x

x
x

x
x
x
x

x
x
x
x
x
x
x

x
x
x
x
x
x
x
x

x
x
x
x
x
x
x

x
x
x
x
x

x
x

x
x
x
x
x
x
x

x
x
x
x
x
x
x
x
150
x
x
x

x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x

BRADFORD WHITE CORP.

H2364001A

Dimensions and specifications subject to change without notice in accordance with our policy of continuous product improvement.

200 Lafayette St.
Middleville, MI 49333
Warranty: (800) 531-2111

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