Bradford White Brute BNTH1000 Installation And Operation Instructions Manual
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Bradford White Brute BNTH1000 Installation And Operation Instructions Manual

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Installation and Operation Instructions
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.
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.
Installation and service must be performed
by a qualified installer, service agency, or gas
supplier.
WARNING
Installation and
Operation Instructions for
Brute
Modulating Boiler
Model BNTH1000
1,000 MBTU/h
Model BNTH1200
1,200 MBTU/h
Assurez-vous de bien suivres les instructions
données dans cette notice pour réduire au
minimum le risque d'incendie ou d'explosion ou
pour éviter tout dommage matériel, toute blessure
ou la mort.
Ne pas entreposer ni utiliser d'essence ni d'autres
vapeurs ou liquides inflammables dans le
voisinage de cet appareil ou de tout autre appareil.
QUE FAIRE SI VOUS SENTEZ UNE ODEUR DE GAZ:
• Ne pas tenter d'allumer d'appareils.
• Ne touchez à aucun interrupteur. Ne pas vous
servir des téléphones dansle bâtiment où vous
vous trouvez.
• Appelez immédiatement votre fournisseur de
gaz depuis un voisin. Suivez les instructions du
fournisseur.
• Si vous ne pouvez rejoindre le fournisseur de
gaz, appelez le sservice des incendies.
L'installation et l'entretien doivent être assurés par
un installateur ou un service d'entretien qualifié ou
par le fournisseur de gaz.
Document 1266C
TM
Water Heater
Model BNTV1000
1,000 MBTU/h
Model BNTV1200
1,200 MBTU/h
AVERTISSEMENT

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  • Page 1 Installation and Operation Instructions Document 1266C Installation and Operation Instructions for Brute Modulating Boiler Water Heater Model BNTH1000 Model BNTV1000 1,000 MBTU/h 1,000 MBTU/h Model BNTH1200 Model BNTV1200 1,200 MBTU/h 1,200 MBTU/h 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.

  • Page 2: Table Of Contents

    RADFORD HITE Table of Contents Section 1 Section 6 GENERAL INFORMATION ........1 WATER CONNECTIONS ........18 Introduction ..........1 About the Touch Screen ......1 Section 6A - BNTH Systems........18 Safety Notes ..........3 6A.1 BNTH System Piping: Hot Supply Connections ..........18 1.4 Model Identification / Nomenclature ..
  • Page 3 Brute RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h Section 9 – SETUP AND CONFIGURATION ......42 10.3 Shutting Down the Brute ......87 9.1 Review of Lead/Lag Control System ..42 10.4 Restarting the Brute ........ 87 9.1.1 About Lead/Lag Operation ..... 42 9.1.2 Lead/Lag Modulation Cycle ....43 Section 11 9.1.3 BNTH Lead/Lag with Indirect MAINTENANCE .............
  • Page 4 RADFORD HITE...

  • Page 5: General Information

    Brute can deliver such any questions regarding this equipment, please outstanding performance. You can access the consult the Bradford White factory, or a local factory representative. Many operating problems are caused control system using the ‘Touch Screen Display’...
  • Page 6 Page 2 RADFORD HITE Installation burner pairs will refer back to that single value. • Each controller and burner work together. Each On the Touch Screen, from the ‘home’ screen boiler includes two of these controller/burner you can reach all of the Lead/Lag functions by combinations.

  • Page 7: Safety Notes

    Brute Page 3 RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h • Section 8 – “Using the Touch Screen and the WARNING Gauges.” Carbon Monoxide Hazard This section will explain how to “Navigate” through the Touch Screen : how to enter and Improper adjustment of the burners may lead to poor change values, and so on.

  • Page 8: Warranty

    HITE Warranty the packing slip. Inspect everything for damage Bradford White’s Brute 1000 & 1200 are covered by immediately upon delivery, and advise the carrier a limited warranty. The owner should complete the of any shortages or damage. Any such claims warranty registration at: should be filed with the carrier.

  • Page 9: Dimensions

    Brute Page 5 RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h Figure 5. Dimensions Dimensions DANGER • Water temperature over 125°F (52°C) can The dimensions are shown in Figure 5 cause severe burns instantly or death from scalds. Unpacking •...

  • Page 10: Locating The Appliance

    Page 6 RADFORD HITE SERVICE APPLIANCE SUGGESTED ACCESS CLEARANCE Section 2 INCHES SURFACE LOCATING THE APPLIANCE Front 60.9 Left Side 30.5 Locating the Appliance Right Side 45.7 The Brute 1000 and 1200’s may be installed indoors Back 60.9 or outdoors. The unit may only be installed outdoors in a location which will never experience freezing 60.9 temperatures.

  • Page 11: Venting And Combustion Air

    Brute Page 7 RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h 3.1.1 Combustion Air From Room Section 3 In the United States, the most common VENTING AND COMBUSTION AIR requirements specify that the space shall communicate with the outdoors in accordance with Combustion Air Method 1 or 2.

  • Page 12: 3.1.2 Ducted Combustion Air

    In both shall be permitted. The opening shall directly installation types, Bradford White part number CA008500 (for Model 1,000 and 1,200) can then be communicate with the outdoors or shall...

  • Page 13: Venting

    All installations must be done following the vent property damage, personal injury, or death. supplier’s recommended installation techniques. If these are not available, refer to the Bradford White WARNING recommendations for the material used. Failure to use the appropriate vent material,...

  • Page 14: Locating The Vent And Combustion Air Terminals

    CSA B149.1 or .2 and one is not available with the certified vent system, local applicable codes. Bradford White suggests using a tee with the branch Consider the following when installing the terminal: connection sized to allow for insertion of a flue gas analyzer probe.
  • Page 15 Brute Page 11 RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h U.S. Installations (see note 1) Canadian Installations (see note 2) A= Clearance above grade, veranda, porch, 12 inches (30 cm) 12 inches (30 cm) deck, or balcony See note 6 See note 6 B= Clearance to window or door that may be...

  • Page 16: Side Wall Combustion Air Terminal

    If the Brute is side-wall vented to the same wall, locate the vent terminal at least 1 foot (0.3 m) The Bradford White side wall combustion air terminal above the combustion air terminal. must be used when the heater takes air from a side Multiple vent kits should be installed such that wall.

  • Page 17: 3.3.3 Vertical Vent Terminal

    Brute Page 13 RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h the horizontal distance between outlet group a. In the event that the side-wall horizontally and inlet group is 36” (90 cm). (See Figure 10.) vented gas fueled equipment is installed in a crawl space or an attic, the hard-wired carbon The vent outlet must be at least 12”...

  • Page 18: Outdoor Installation

    Page 14 RADFORD HITE 1. Seal any unused openings in the common operation in outdoor installations, the boiler must venting system. be equipped with the inlet air and exhaust terminal kits listed in Table 3C. The bottom panel cover 2. Visually inspect the venting system for proper plate must be removed.

  • Page 19: Gas Supply And Piping

    Brute Page 15 RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h Section 4 GAS SUPPLY AND PIPING Gas Supply and Piping Gas piping should be supported by suitable hangers WARNING or floor stands, not the appliance. Open flame can cause gas to ignite and result in Installers should refer to local building and safety property damage, severe injury, or loss of life.

  • Page 20: Distance & Pipe Size, Tables

    Page 16 RADFORD HITE Brute 1000 & 1200 TO SIZE PIPING: NATURAL GAS Measure linear distance from meter outlet SCH 40 METAL PIPE CAPACITY FOR 0.60 SPECIFIC GRAVITY to last boiler. Add total input of all boilers REQUIRED NATURAL GAS and divide by 1000 to obtain cu ft / hr CU FT required.

  • Page 21: Pump Requirements

    1200 6" 6" 100 ft 30 m Installations in the U.S. require exhaust vent pipe that is a combination of PVC and CPVC complying with ANSI/ASTM D1785 F441, polypropylene pipe that complies Brute Page 17 RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h with ULC S636, or stainless steel complying with UL 1738.

  • Page 22: Water Connections

    Page 18 RADFORD HITE Section 6 - WATER CONNECTIONS Section 6 is divided into TWO parts. Suggested piping diagrams are shown in Figures Section 6A covers NTH units designed 12 through 16. These diagrams are meant only as for hydronic heating. Many installations guides.

  • Page 23: Bnth Freeze Protection

    Do not use automotive antifreeze. To help prevent continuously slope downward toward the drain with freezing, Bradford White recommends the use no spiraling. of inhibited glycol concentrations between 20% Consult local codes for the disposal method.
  • Page 24 Page 20 RADFORD HITE Low temp. radiant zone Space heating zone circuits Space heating zone circuit System pump Air vent 4 pipe dia. max. 4 pipe dia. max. 4 pipe dia. max. Water feed controls 4 pipe dia. max. Note - This drawing is a schematic representation of a piping style, and is not intended to be used...
  • Page 25 Brute Page 21 RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h 4 pipe dia. max. Air vent Water feed Anti-scald controls mixing valve 4 pipe Domestic dia. max. hot water Expansion tank Indirect DHW tank Note - This drawing is a schematic representation of a piping style, and is not intended to be used as a working installation drawing.
  • Page 26 Page 22 RADFORD HITE Note - This drawing is a schematic representation of a piping style, and is not intended to be used as a working installation drawing. Local code requirements must be met. Low temp. radiant zone Low temp. radiant zone Air vent Water feed controls Expansion tank...
  • Page 27 Brute Page 23 RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h Space heating Note - zone circuits This drawing is a schematic representation of a piping style, and is not intended to be used as a working installation drawing. Local code requirements must be met.

  • Page 28: Section 6B - Bntv Systems

    Page 24 RADFORD HITE Space heating zone circuits High temp. space heating zone circuit Space heating zone circuit Air vent 4 pipe dia. max. 4 pipe dia. max. Water feed controls Expansion tank 4 pipe dia. max. Common piping must be sized for the combined water flow of all the boilers.

  • Page 29: Bntv Piping Requirements

    Brute Page 25 RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h as required by code. The piping should be installed so that each pump Specific instructions for the installation of a Low supplies flow only to the heater to which it is Water Cut Off (LWCO) are the following: attached.

  • Page 30: Bntv Cold Water Make-Up

    Page 26 RADFORD HITE 6B.4 NTV Freeze Protection 6B.6 NTV Suggested Pumps The NTV unit must never be installed outdoors See Table 8 for water flow and head in a location which may experience freezing requirements. temperatures. If installed indoors, and there is an Note - The head loss for the piping, fittings, event such as a power outage, component failure and accessories must be calculated and added...

  • Page 31: Condensate Trap

    Brute Page 27 RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h Building return NOTES: WARNING: This drawing shows 1. Optional CWMU & recirculation suggested piping configuration and line location. valving. Check with local codes and 2. Locate the NTV DHW sensor ordinances for additional requirements.

  • Page 32: Electrical Connections

    Page 28 RADFORD HITE Section 7 ELECTRICAL CONNECTIONS Caution The supply voltage to the Brute must not be WARNING disengaged, except for service or isolation, or The Brute 1000 & 1200 appliances must be unless otherwise instructed by procedures outlined electrically grounded in accordance with the in this manual.
  • Page 33 Brute Page 29 RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h TB10 Secondary controller Primary controller (lower burner) (upper burner) Figure 19. Electronics Panel Layout Model 1,000 1,200 Voltage 120 V AC 120 V AC Current - FLA 10 A 12 A Pump Connections Ratings...

  • Page 34: Vac Transformer With Integral Circuit Breaker

    Page 30 RADFORD HITE 24 VAC Transformer with Integral Circuit Breaker Mechanically, install the LWCO device in a tee fitting in the supply piping above the highest point of the 24 VAC is supplied by a transformer mounted on the boiler (unless the boiler has an existing fitting for that control panel.

  • Page 35: Ladder Diagrams

    E23460 DWG NO. Brute Page 31 RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h REVISIONS REV. DRAFT CHECK ENGR APPR APPR AH 2/12/14 14-013 ADDED SECONDARY CONNECTORS TO THE STACK CHANGE: TEMP SENSOR. ZONE D-1 Caution Ladder and Wiring Diagrams When servicing controls, label all wires prior to See Figure 20 and Figure 21.
  • Page 36 Page 32 RADFORD HITE THIS DOCUMENT AND THE INFORMATION CONTAINED HEREIN ARE PROPRIETARY TO LAARS HEATING SYSTEMS CO. AND SHALL NOT BE REPRODUCED, TRANSFERRED TO OTHER DOCUMENTS, USED OR DISCLOSED TO OTHERS FOR MANUFACTURING OR ANY OTHER PURPOSE EXCEPT AS SPECIFICALLY AUTHORIZED IN WRITING BY LAARS HEATING SYSTEMS CO.

  • Page 37: Wiring Diagrams

    Brute Page 33 RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h REVISIONS REV. APPR DRAFT CHECK ENGR APPR AH 1/30/14 14-013N-01 CHANGED STACK SENSOR FROM 4 PIN TO 8 PIN CHANGE: CONNECTOR FLAPPER GY/V GY/V PRIMARY OUTLET WATER STACK TEMP BL/V W/BL...

  • Page 38: Using The Touch Screen And Gauges

    Page 34 RADFORD HITE Section 8 In multiple boiler configurations, each Brute will still have it’s own Touch Screen, but only the Touch USING THE TOUCH SCREEN AND Screen on the lead boiler will be active. Up to 8 GAUGES controllers (4 boilers) can be displayed on the ‘home’...
  • Page 39 Brute Page 35 RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h Login Home Upper Return to Home page left-hand corner Bell Upper System in Lockout, left-hand Reset required corner Shift Backspace Padlock Upper Shows whether a Clear Cancel right-hand password has been corner...

  • Page 40: While Operating - Checking Lead/Lag Operating Information

    Page 36 RADFORD HITE At the bottom of the screen shown in Fig. 28, the Blue Normal operation system is telling you that it wants you to log in. Gray and Communication crossed out problem Yellow Hold state. This could be Anti short cycle, fan speed transitions, etc.

  • Page 41: While Operating - Checking Individual Parameters

    Brute Page 37 RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h You can change the setpoints from this will appear. This shows the current operating screen. When you press the yellow box condition of that controller, and also shows beside Setpoint, the controller presents this some of the configuration settings.

  • Page 42: Checking Individual Details

    Page 38 RADFORD HITE Configuring Parameters on Individual Controllers Checking Individual Details In this section, we will just give you a quick The Details button on the Status Summary screen explanation of how to change parameters on one of leads to a series of screens that show all of the the controllers.

  • Page 43: Verification Process For Safety-Related Parameters

    Brute Page 39 RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h Press the Configure button to start a configuration session for the selected controller. See Fig. 39. Fig. 41 - Numeric Entry Screen Verification Process for Safety- Related Parameters Fig.
  • Page 44 Page 40 RADFORD HITE Fig. 45 - Edit Safety Data Fig. 43 - Verification Needed Notes – Once you are done changing safety parameters, • Once you change one of these safety-related press Confirm. The system will present a listing parameters, you must finish the verification for each group of parameters which includes a process for the group that includes the parameter,...

  • Page 45: Optional Variable Speed Pump Control

    Brute Page 41 RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h Optional Variable Speed Pump Control. Pump speed is controlled to maintain a user-chosen temperature rise between the inlet and outlet of the NeoTherm. For the entire kit and the complete 6 page instruction sheet, Reference Kit # CA009900 Document 7025C CA009900 Document 7025C...

  • Page 46: Setup And Configuration

    Page 42 RADFORD HITE Section 9 SETUP AND CONFIGURATION Review of Lead/Lag Control System 9.1.1 About Lead/Lag Operation The boilers in this series are always set up for Lead/ On a multiple-boiler installation, each individual boiler Lag operation. In a single-boiler installation, there is still set up as shown in Fig.

  • Page 47: Lead/Lag Modulation Cycle

    Brute Page 43 RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h In either kind of installation, a system sensor is Let’s consider the following example: usually used to monitor the demand. The input from Four Brute boilers are tied together via Modbus this sensor is used to control the modulation rates of connections.

  • Page 48: Bnth Lead/Lag With Indirect

    Page 44 RADFORD HITE 9.1.3 NTH Lead/Lag with Indirect Boiler X Boiler Y Domestic Hot Water So far, we have been describing a system which Low demand - handles the Central Heat function only. There are The first burner* in several ways the Domestic Hot Water can be set up sequence fires at less than 65%...
  • Page 49 Brute Page 45 RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h Fig. 51 – Connection Terminals...
  • Page 50 Page 46 RADFORD HITE Table 12 – Installations for Special Options System Multiple System Common Setpoint Modulation Outdoor or single or local vent control control, 4-20 reset boilers boiler 4-20 ma control Single Local boiler Single Local boiler Multiple Local boiler Multiple Local...
  • Page 51 Brute Page 47 RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h Table 12 – Installations for Special Options (continued) Single System boiler Single System Yes, from boiler system Multiple System boiler Multiple System Yes, from boiler system Multiple System boiler Multiple...
  • Page 52 Page 48 RADFORD HITE System 4 – Multiple boilers, Local control, Outdoor reset Job B Set up the names for each of the controllers Job C Make one control the Lead/Lag master Job D On each of the controllers that will act as a slave, disable the Lead/Lag Master Job E Set up the Modbus control addressing to assign addresses for each of the controls Job F...
  • Page 53 Brute Page 49 RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h System 7 – Single boiler, System control Job I Set the parameters used by the Lead/Lag system Job L Building automation or multiple boiler control thermostat demand Job O Set up the combustion on each of the burners Job P...
  • Page 54 Page 50 RADFORD HITE System 11 – Single boiler, System control, 4-20 mA setpoint control Job I Set the parameters used by the Lead/Lag system Job M Building automation or multiple boiler control 4-20 mA setpoint control Job O Set up the combustion on each of the burners Job P Set the date and time on the system System 12 –...
  • Page 55 Brute Page 51 RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h System 15 – Single boiler, System control, 4-20 mA modulation control Job N Building automation or multiple boiler control 4-20 mA modulation control Job O Set up the combustion on each of the burners Job P Set the date and time on the system System 16 –...
  • Page 56 Page 52 RADFORD HITE System 20 – Multiple boiler, System control, Common vent, 4-20 mA setpoint control, Outdoor reset Job A Note on common venting Job B Set up the names for each of the controllers Job C Make one control the Lead/Lag master Job D On each of the controllers that will act as a slave, disable the Lead/Lag Master Job E...

  • Page 57: Installation Jobs

    Brute Page 53 RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h Installation Jobs Note – To install your system, you will not need to do all of the installation jobs listed here. Please refer to Section 9.3 for a list of specific installation jobs necessary to install your system.

  • Page 58: Master

    Page 54 RADFORD HITE present the keyboard screen. Use the “BS” Start at the ‘home’ screen. See Fig. 56. (BackSpace) key to erase the existing name. Enter the new name, then press OK. Now you can rename the other control on Boiler 1 –...

  • Page 59: D Disable The Lead/Lag Master Function On The Lead/Lag Slaves

    Slave (usually Slave 1). A single controller performs both functions. When the controllers arrive from the Bradford White factory, they will all be configured as slaves. Your job in this step is to disable the Lead/Lag Master Fig.

  • Page 60: E Set Up The Modbus Control Addressing

    Page 56 RADFORD HITE Job E – Set Up the Modbus Control Addressing (This is an individual function – do this for each of the controls Use the separate Touch Screen on each boiler.) Do this on any system with multiple boilers. Note –...

  • Page 61: F Set The Flap Valve Ids

    Brute Page 57 RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h (These are individual functions. Make the flap valve then press OK. assignment on each of the controllers. Use the Touch Screen on each of the boilers.) WARNING Do this on any system with multiple boilers.
  • Page 62 Page 58 RADFORD HITE WARNING If the flap valve identifications are not configured correctly, this could cause the equipment to malfunction. This could lead to personal injury or death, and could damage the equipment. If the configuration is not correct, the control system will present an error –...
  • Page 63 Brute Page 59 RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h Table 14 – Number of Controls In this example, we are still working with the Primary control for Boiler 1. From the table, Number of Number of you can see that this control should have a boilers controls...
  • Page 64 Page 60 RADFORD HITE Fig. 76 – Safety Parameter Confirmation Check the list carefully. Press Yes if all of the Fig. 74 – Reset Button on Controller parameters in the group have been entered correctly. The control system allows 30 seconds to 12.

  • Page 65: G Disconnect Unused Operator Interfaces

    Brute Page 61 RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h Once a Lead/Lag system is set up and operating, AWG or thicker shielded twisted pair wire with drain. the monitoring functions will all be handled from one Two twisted pairs or three conductors are needed.

  • Page 66: Lead/Lag System

    Page 62 RADFORD HITE Boiler 1 (Lead/Lag Master) Boiler 2 Secondary Primary TB9, pin 7 connect to TB9, pin 1 TB9, pin 8 connect to TB9, pin 2 TB9, pin 9 connect to TB9, pin 3 TB9, pin 10 connect to TB9, pin 4 TB9, pin 11 connect to...
  • Page 67 Brute Page 63 RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h DHW time of day setpoint - System sensor reaches the LL CH Setpoint minus an additional “hysteresis” value. Separate Time-of-Day Setpoint for Domestic Hot Water (See the material on “About the P, I, D Gain - ‘Time of Day’...
  • Page 68 Page 64 RADFORD HITE If a 4 – 20 mA input is used to adjust the Press the left-arrow or right-arrow until you setpoint, this entry sets the high limit of the see the Outdoor Reset screen (Fig. 86). control range. (In the example shown here, an input of 20 mA would result in a setpoint of 120°F.) Press the left-arrow or right-arrow until you...
  • Page 69 Brute Page 65 RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h Low water temp. - When enabled, the Warm Weather Shutdown feature will turn off the Central Heating If the outdoor temperature reaches the Max. functions when the outdoor temperature Outdoor Temp.

  • Page 70: About The "Time Of Day" Function

    Page 66 RADFORD HITE Job J - Install the System Sensor and Table 16 – Base Load Settings Adjust the Setpoint Number Base load min. of boilers (This is a Lead/Lag function – do this once for the whole Installed Lead/Lag system.

  • Page 71: About Outdoor Reset

    Brute Page 67 RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h on TB7. the system shuts down after the outdoor temperature rises above the setpoint. The options are Shutdown immediately/ After Set the outdoor reset and warm weather demand ends/ Disabled.

  • Page 72: L Building Automation Or Multiple Boiler Control Thermostat Demand

    Lag Master Configuration Screen setpoint. Line 2 = CH Setpoint Min. outdoor temp. - Note - Bradford White offers “gateways” to If the outdoor temperature reaches allow connections to BACnet, LON, and other this value or below, the system will not communications protocols.

  • Page 73: N Building Automation Or Multiple Boiler 4-20Ma Modulation Control

    High Fire and Low Fire conditions. As Note - The system can also operate using 0 - 10V we said, a boiler includes two controllers (Primary dc using a converter (Bradford White part number and Secondary), which control two burners (Primary CA006100.) and Secondary).
  • Page 74 Page 70 RADFORD HITE Boiler 1 Operator Primary Primary interface controller burner valve High fire adjustment Low fire adjustment valve Secondary Secondary controller burner Fig. 97 – Primary and Secondary Burners in a Boiler the same adjustments there. WARNING Improper adjustment may lead to poor combustion quality, increasing the amount of carbon monoxide produced.
  • Page 75 Brute Page 71 RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h The system will present the Status Summary Press the Burner Enable switch in the upper screen. left-hand corner of the screen. Since you selected the Secondary control for this boiler, this will turn off the Secondary burner.
  • Page 76 Page 72 RADFORD HITE Positive connection point Negative connection point Fig. 105 – Connections for Pressure Gauge BNT1000 and BNT1200 controller will present the Manual Firing Rate screen shown in Fig. 104. Manual in Run - The Manual in Run control will only set the fan speed when the control has proven flame and the unit has entered the Run mode.
  • Page 77 Brute Page 73 RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h turn the screw clockwise. burner, press the yellow box for the Firing Rate. Login using the installer-level password, (Make the adjustment in small steps of 1/8 then press OK. turn to avoid “overshooting”...

  • Page 78: System Display

    Page 74 RADFORD HITE • Turn off the call for heat, and set both burners to run at 1200 RPM for low fire. Here is the procedure: Turn on the call for heat, and check the Start at the ‘home’ screen. performance again.

  • Page 79: Setup For Domestic Hot Water On A Lead/Lag System

    Brute Page 75 RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h hydronic temperature and the maximum DHW outlet temperature. Select Date and Time. Figure 107 shows the setup screen. The setup for this is all done from within the Lead/ Lag system.

  • Page 80: Setup Type 2

    Page 76 RADFORD HITE • The plumbing must be set up so that, during DHW demand, each boiler used for DHW is pumped by the DHW pump, and the boiler pump is turned off. This will keep the temperature zones separate. •...

  • Page 81: Setup Type 3

    Brute Page 77 RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h Select that line by pressing it. If you want to change the DHW priority, the system will ask you to log in using the installer-level password. For this kind of installation, the entry should be “DHW>...

  • Page 82: Gateway Connections To A Building Automation System

    Page 78 RADFORD HITE Gateway Connections to a Building Automation System Enabling Modbus Port 2 - Brute boilers can be controlled and monitored For this system to work correctly, Modbus Port 2 on through the included Modbus ports. The the unit operating as the Lead/Lag Master must be Modbus wiring should be completed according enabled.

  • Page 83: Installer Parameters

    Brute Page 79 RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h Installer Parameters This is a list of all of the parameters which can be accessed using the Installer password. Label Description How to Reach 4 mA water If a 4 –...
  • Page 84 Page 80 RADFORD HITE Label Description How to Reach CH (Central This controls whether a local Central Heat If Lead/Lag enabled – Heat) has demand has priority over the control asserted by <’home’ screen> Lead/Lag Master button priority over the LL Master, when this controller is enabled as <Lead/Lag Master screen>...
  • Page 85 Brute Page 81 RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h Label Description How to Reach CH (Central This setpoint is used when the time-of-day input If Lead/Lag enabled – Heat) is off. If the outdoor reset function is active, this <’home’...
  • Page 86 Page 82 RADFORD HITE Label Description How to Reach The DHW pump (Pump C) can be turned <’home’ screen> Select a controller (Domestic on manually, or it can be set to operate <Status Summary screen> Configure Hot Water) automatically. If it is turned on then it remains button <Configuration Menu>...
  • Page 87 Brute Page 83 RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h Label Description How to Reach Lead lag D This is part of the damping function <’home’ screen> Lead/Lag Master button gain (“Derivative”) used when the controller interprets <Lead/Lag Master screen>...
  • Page 88 Page 84 RADFORD HITE Label Description How to Reach Lead lag on When the Lead/Lag function is enabled, the If Lead/Lag enabled – hysteresis control system will not fire the boilers until the <’home’ screen> Lead/Lag Master button temperature at the System sensor drops to the <Lead/Lag Master screen>...
  • Page 89 Brute Page 85 RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h Label Description How to Reach Modbus Each controller must have a unique Modbus <’home’ screen> Setup button <Setup address address. screen> Control setup button/ Change address button Number of Each controller needs to know how many flap <’home’...

  • Page 90: Initial Startup Instructions

    Page 86 RADFORD HITE Section 10 INITIAL STARTUP INSTRUCTIONS 10.1 Filling the Boiler System the expansion tank, open the tank drain, and Ensure the system is fully connected. Close all drain to that level. bleeding devices and open the make-up water valve.

  • Page 91: Initial Burner Operation

    Brute Page 87 RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h 10.2 Initial Burner Operation button on the control. Restart the appliance. The ignition sequence will The initial setup must be checked before the unit is start again and the burner will start. The put into operation.

  • Page 92: Maintenance

    11.1 System Maintenance 11.2 Maintenance Notes Do the following once a year: Use only genuine Bradford White replacement parts. Lubricate the System pump, if required, per the instructions on the pump. Caution Inspect the venting system for obstruction When servicing the controls, label all wires before or leakage.

  • Page 93: 11.2.3 Controllers

    Brute Page 89 RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h power supply to the boiler. Turn off all manual gas assembly gasket. If the old assembly is determined valves connecting the boiler to the main gas supply to be defective, install a new ignitor assembly in the line.

  • Page 94: 11.2.7 Blower

    Page 90 RADFORD HITE 11.2.7 Blower bucket. The combustion air blower is a high-pressure Clean the heat exchanger by brushing away centrifugal blower with a variable speed motor. The any light accumulations of soot and debris. Use speed of the motor is determined by the control a non metallic brush with soft bristles to avoid logic.

  • Page 95: 11.2.10 Natural/Propane Gas Conversion

    Brute Page 91 RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h 11.2.10 Natural/Propane Gas Conversion 11.2.12 Battery (Date and Time Back-Up for Brute 1000 & 1200’s can easily be converted from natural to propane gas or from propane to natural Touchscreen Display) gas.

  • Page 96: Troubleshooting

    Page 92 RADFORD HITE Section 12 TROUBLESHOOTING 12.1 Potential Setup and 12.1.1 Controller Synchronization Synchronization Problems On a multiple-boiler installation, the individual boiler controllers are arranged in a “daisy chain” using Because the Brute uses a sophisticated control a Modbus connection, with the Secondary control system, it can constantly perform a series of self- of one boiler connected to the Primary control of checks.

  • Page 97: Flap Valve Status Checks

    Brute Page 93 RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h 12.1.2 Flap Valve Status Check During a lockout condition, the image of the affected controller on the ‘home’ screen will Each boiler includes two burners, and each burner appear in red.

  • Page 98: Viewing The Lockout And Alert Histories

    Page 94 RADFORD HITE Correct the cause of the problem, and press If you press the Details button, the control the button on the screen to clear the Hold. software will present a screen similar to this (Fig. 126). If a serious problem continues, the system will declare a Lockout.
  • Page 99 Brute Page 95 RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h Fig. 128 – Alert Log Screen To get more information on a particular alert, touch the entry for that alert on the screen.

  • Page 100: Troubleshooting Tables (All Codes)

    Page 96 RADFORD HITE 12.3 Troubleshooting Table This table includes a listing of the faults that might be generated by the controllers, and displayed on the Touch Screen. Some of these can be corrected by an installer changing a parameter, while other conditions are more complicated, and will require a service technician.
  • Page 101 Brute Page 97 RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h Internal fault: Internal fault Invalid burner control state flag 1. Reset module 2. If fault repeats, replace module. Internal fault: Internal fault Safety relay drive cap short 1.
  • Page 102 Page 98 RADFORD HITE Internal fault: Internal fault Static flame ripple 1. Reset module 2. If fault repeats, replace module. Internal fault: Internal fault Flame rod shorted to ground detected 1. Reset module 2. If fault repeats, replace module. Internal fault: Internal fault A/D linearity test fails 1.
  • Page 103 Brute Page 99 RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h AC input phases reversed 1. Check the module and display connections. 2. Check the module power supply and make sure that both frequency and voltage meet the specifications.
  • Page 104 Page 100 RADFORD HITE Outlet high limit H or L 1. Check wiring and correct any possible errors. 2. Replace the outlet high limit. 3. If previous steps are correct and fault persists, replace the module. DHW (Domestic Hot Water) high limit H or L 1.
  • Page 105 Brute Page 101 RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h Internal Fault: A2D mismatch. Internal Fault. 1. Reset module. 2. If fault repeats, replace module. Internal Fault: Exceeded VSNSR Internal Fault. voltage tolerance 1. Reset module. 2. If fault repeats, replace module. Internal Fault: Exceeded 28V voltage Internal Fault.
  • Page 106 Page 102 RADFORD HITE Flame lost in run 1. Check main valve wiring and operation - correct any errors. 2. Check the fuel supply. 3. Check fuel pressure and repeat turndown tests. 4. Check ignition transformer electrode, flame detector, flame detector siting or flame rod position.
  • Page 107 Brute Page 111 RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h 12.4 Diagnostic Tests and Input/ The button for Analog I/O displays items that change continuously between two limits. See Output Indicators Fig. 131. Two kinds of screens are grouped together in this section: •...
  • Page 108 Brute Page 103 RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h Fan speed failed during preignition H or L 1. Check wiring and correct any potential wiring errors. 2. Check the VFDs (Variable-speed Fan Drive) ability to change speeds. 3.
  • Page 109 Page 104 RADFORD HITE Purge fan switch OFF H or L 1. Purge fan switch is off when it should be on. 2. Check wiring and correct any errors. 3. Inspect the Purge Fan switch J6 terminal 3 and its connections. Make sure the switch is working correctly and is not jumpered or welded.
  • Page 110 Brute Page 105 RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h Block intake ON 1. Check wiring and correct any errors. 2. Inspect the Block Intake Switch to make sure it is working correctly. 3. Reset and sequence the module. 4.
  • Page 111 Page 106 RADFORD HITE Invalid DHW (Domestic Hot Water) high 1. Return to Configuration mode and recheck limit enable setting selected parameters, reverify and reset module. 2. If fault repeats, verify electrical grounding. 3. If fault repeats, replace module. Invalid DHW (Domestic Hot Water) high 1.
  • Page 112 Brute Page 107 RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h Invalid lightoff rate setting 1. Return to Configuration mode and recheck selected parameters, reverify and reset module. 2. If fault repeats, verify electrical grounding. 3. If fault repeats, replace module. Invalid lightoff rate proving setting 1.
  • Page 113 Page 108 RADFORD HITE Invalid Prepurge time setting 1. Return to Configuration mode and recheck selected parameters, reverify and reset module. 2. If fault repeats, verify electrical grounding. 3. If fault repeats, replace module. Invalid Purge rate proving setting 1. Return to Configuration mode and recheck selected parameters, reverify and reset module.
  • Page 114 Brute Page 109 RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h Invalid Flame threshold setting 1. Return to Configuration mode and recheck selected parameters, reverify and reset module. 2. If fault repeats, verify electrical grounding. 3. If fault repeats, replace module. Invalid Outlet high limit setpoint setting 1.

  • Page 115: Diagnostic Tests And Input/Output Indicators

    Page 110 RADFORD HITE Invalid DHW (Domestic Hot Water) 1. Return to Configuration mode and recheck connector type setting selected parameters, reverify and reset module. 2. If fault repeats, verify electrical grounding. 3. If fault repeats, replace module. Invalid Stack connector type setting 1.

  • Page 116: Lead/Lag Slave Diagnostics

    Page 112 RADFORD HITE 12.5 Lead/Lag Slave Diagnostics 12.7 Analysis The control system includes a diagnostic screen that The control system includes an Analysis branch lists some information on the Lead/Lag slaves in the that can display the behavior over a period of time system.

  • Page 117: Control Snapshot

    Brute Page 113 RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h 12.8 Control Snapshot 12.9 Operating Sequence The software allows you to take a “snapshot” of the current state of the controller, including setup Initiation information and operating information. This Each controller enters the Initiation sequence after information can be helpful during troubleshooting.
  • Page 118 Page 114 RADFORD HITE Burner Ignition Sequence 14. The Boiler pump and System pump remain on during their pump overrun times. Here is the start-up sequence following a Lead Lag 15. At the end of the pump overrun times, the (LL) Central Heating request: Boiler and System pumps are turned off.
  • Page 119 Brute Page 115 RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h During the Initiate Period: • All of the checks made under Synchronization, plus: • All of the checks made under Synchronization, plus: • Locks out if the Main Valve terminal is energized.

  • Page 120: Replacement Parts

    13.1 General Information To order or purchase parts for the Bradford White Brute, contact your nearest Bradford White dealer or distributor. If they cannot supply you with what you need, contact Customer Service. (See the back cover for addresses, and for telephone and fax numbers.) 13.2...
  • Page 121 Brute Page 117 RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h Part No. - Part # Description Model 1000 Model 1200 __ Same 10J3019 COVER < __ Same S2116600 GROMMET, 1 1/2” PIPE, FLEX < __ Same 10J3031 PLATE, RETAINER, GASKET, HX <...
  • Page 122 Page 118 RADFORD HITE Part No. - Part # Description Model 1000 Model 1200 __ Same S2117801 HEAT EXCHANGER, GIANNONI TRIO < __ Same 10J4047 CLIP, QUICK DISCONNECT < __ Same S2116900 O-RING, 61mm x 53mm x 4mm < __ Same E2339400 THERMISTOR, NTC, 1/8”...
  • Page 123 Brute Page 119 RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h Part No. - Part # Description Model 1000 Model 1200 R2071700 R2071701 BURNER W/ GASKET __ Same R2071500 IGNITOR, SPARK, W/ GASKET < __ Same RW2013300 GASKET, IGNITOR <...
  • Page 124 Page 120 RADFORD HITE...

  • Page 125: Parts Illustrations

    Brute Page 121 RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h 13.3 Parts Illustrations Fig. 140 - Machine Frame - BNT1000 and BNT1200...
  • Page 126 Page 122 RADFORD HITE Fig. 144 - Front Panels and Covers Fig. 141 - Rear Panel...
  • Page 127 Brute Page 123 RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h Fig. 145 - Burners and Combustion Chamber...
  • Page 128 Page 124 RADFORD HITE Fig. 147 - Heat Exchanger Components...
  • Page 129 Brute Page 125 RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h Fig. 148 - Burner Detail...
  • Page 130 Page 126 RADFORD HITE Fig. 150 - Electronic Components Fig. 151 - Condensate Trap...
  • Page 131 Brute Page 127 RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h Fig. 153 - Flow Switch...
  • Page 132 RUTE. BOILERS AND VOLUME WATER HEATERS, 1,000 & 1,200 MBTU/h RADFORD HITE Notes: Dimensions and specifications subject to change without notice in accordance with our policy of continuous product improvement. 200 Lafayette St. www.BradfordWhite.com Middleville, MI 49333 Warranty: (800) 531-2111 Litho in U.S.A. © Bradford White 1509 Document 1266C-BW...

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