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Bradford White Corp.

2. Set the outdoor reset and warm weather

shutdown parameters as desired.

How to get there – Outdoor Reset Screen and Warm

Weather Shutdown Screen

Home Page <Press View Lead/ Lag button> Lead/ Lag

Screen <Press Lead/ Lag Master button> Lead/ Lag

Screen <Press Configure button> Lead/ Lag Master
Configuration Screen <Press Advanced Settings button>

Select the Outdoor Reset Screen or the Warm Weather

Shutdown Screen

fig. 92 – outdoor reset

For a detailed explanation of the Outdoor

Reset function, see the section titled “About

Outdoor Reset” which follows.

fig. 93 – Warm Weather Shutdown

When enabled, the Warm Weather Shutdown

feature will turn off the Central Heating

functions when the outdoor temperature

exceeds the setpoint. This prevents the system

from running when there is no need for heat.

Enable -

These options determine how quickly

the system shuts down after the outdoor

temperature rises above the setpoint. The

options are Shutdown immediately/ After

demand ends/ Disabled.

Setpoint -

If the outdoor temperature is higher than

this, the system will shut off the Lead/Lag

Central Heating functions.

about outdoor reset

The Outdoor Reset feature calculates a correction

for the Lead/Lag setpoint depending on the outdoor

temperature. This allows the system to adjust for

changes in the outdoor temperature and run more

efficiently.

The Show Line button at the bottom of the Outdoor

Reset screen displays a curve which shows

how the system will behave at different outdoor

temperatures. See Fig. 94.

fig. 94 – Show line Screen

The display shown above show the action of the

system with one possible group of settings. The

green line shows the setpoint used by the system.

• Without Outdoor Reset, this would be a

constant 120°F (or whatever value you chose),

regardless of the outdoor temperature. The

green line in the graph would run straight

across the display.

•

However, with the Outdoor Reset feature

turned on, the system will adjust for changes

in the outdoor temperature. Let’s take a

detailed look at behavior of the setpoint,

shown by the green line in the display. For

cold outdoor temperatures (below 32°F), the

setpoint remains unchanged (120°F). As the

temperature begins to rise above 32°F, the

Outdoor Reset function causes the setpoint to

be lowered. At these warmer temperatures,

the heating load on the system is not as great,

so the system does not have to reach as high

a temperature to handle the load. As you can

see from the display, at an outdoor temperature

of about 70°F, the system stops adjusting the

setpoint. Above 70°F, the setpoint is constant

at 100°F.

Содержание BNTH1000

Страница 1: ...d cause serious injury property damage or death Improper installation and or operation will void the warranty AVERTISSEMENT Assurez vous de bien suivres les instructions donn es dans cette notice pour...

Страница 2: ...Bradford White Corp...

Страница 3: ...ments 18 5 1 Brute Elite Boiler Flow and Head Requirements 18 5 2 Brute Elite Water Heater Flow and Head Requirements 18 Section 6 Water Connections 19 Section 6A NTH Units 19 6A 1 NTH System Piping H...

Страница 4: ...77 Setup Type 2 78 Setup Type 3 79 9 6 Gateway Connections to a Building Automation System 80 9 7 Setup for High Altitude Operation NT 1700 Only 80 9 8 Installer Parameters 81 Section 10 Operating Ins...

Страница 5: ...e 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...

Страница 6: ...Single Boiler Installation Each controller and burner work together Each boiler includes two of these controller burner combinations Notice the different terms we are using here The term boiler refers...

Страница 7: ...s we go through the explanations in this manual we will point out whether a control function affects the whole Lead Lag system or just an individual controller burner pair This has been just a quick i...

Страница 8: ...lite 4 Usage H Hydronic V Volume Water 5 8 Size 1 0 0 0 1 000 000 BTU hr input 1 7 0 0 1 700 000 BTU hr input 9 Fuel N Natural Gas P LP Gas 10 Options Code J CSD1 Version X Standard Unit 11 Pump Optio...

Страница 9: ...gauge Blower 1 under bezel Automatic gas valves Manual gas valve Blower 2 Touch Screen Display Protective Cover slides downward Power switch Ducted air inlet Electrical box PRV and flow switch Outlet...

Страница 10: ...lower 1 behind bezel Automatic gas valves Manual gas valve on back Blower 2 Touch Screen Protective Cover slides downward Power switch Ducted air inlet Electrical box PRV and flow switch Outlet temper...

Страница 11: ...or system sensor kit is included DANGER Water temperature over 125 F 52 C can cause severe burns instantly or death from scalds Children disabled and elderly are at highest risk of being scalded See i...

Страница 12: ...Page 8 Bradford White Corp Fig 6 Dimensions BNT 1700...

Страница 13: ...te level above grade or the maximum expected snow line The dimensions and requirements that are shown in Table 1 should be met when choosing the locations for the appliance 2 2 Locating Unit for Corre...

Страница 14: ...combustion air from the space in which it is installed or the combustion air can be ducted directly to the unit Ventilation air must be provided in either case 3 1 1 Combustion Air From Room In the Un...

Страница 15: ...as possible Seal all joints Provide adequate hangers The unit must not support the weight of the combustion air intake pipe The maximum linear pipe length allowed is 100 feet 39 m Subtract 5 allowabl...

Страница 16: ...turer and designed for use with exhaust temperatures of 195 F 90 C or higher When installing polypropylene vent systems please refer to the vent supplier s installation instructions for proper install...

Страница 17: ...and orientation of the flue gas sampling port to ensure that condensate is free to flow back into the Brute Elite and not collect anywhere in the vent system including in the flue gas sampling port E...

Страница 18: ...ator vent outlet See note 4 3 feet 91 cm J Clearance to nonmechanical air supply Direct vent only 36 91cm inlet to building or the combustion air inlet Other than Direct vent 4 ft 1 2m below 36 inches...

Страница 19: ...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 1 m above a public walkway...

Страница 20: ...orizontally vented gas fueled equipment is installed in a crawl space or an attic the hard wired carbon monoxide with alarm and battery back up may be installed on the next adjacent floor level b In t...

Страница 21: ...each appliance remaining connected to the common venting system properly vents when tested as outlined above return the doors windows exhaust fans fireplace dampers and any other gas burning appliance...

Страница 22: ...ld be coated with piping compound resistant to the action of liquefied petroleum gas 8 The appliance and its individual shutoff valve must be disconnected from the gas supply piping during any pressur...

Страница 23: ...AR FEET 90 ELBOW 3 6 4 4 5 2 6 6 7 4 8 5 TEE 4 2 5 3 6 6 8 7 9 9 12 Table 6B Equivalent Pipe Lengths Brute Elite NATURAL GAS REQUIRED CU FT SIZE HR 1000 1000 1700 1700 To size piping Measure linear di...

Страница 24: ...Flow GPM H L Ft 1 000 95 30 75 20 62 15 54 11 48 9 42 7 1 700 161 41 129 27 107 19 92 14 81 11 72 9 Temperature Rise in C Model 11 0 C 13 7 C 16 5 C 19 3 C 22 0 C 24 7 C Flow LPM H L m Flow LPM H L m...

Страница 25: ...is a risk of freezing in the boiler or in the pipes in the system When water freezes it expands This may result in bursting of pipes or damage to the boiler and this could result in leaking or floodi...

Страница 26: ...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 p...

Страница 27: ...feed controls Air vent 4 pipe dia max 4 pipe dia max 4 pipe dia max 4 pipe dia max Low temp radiant zone Space heating zone circuits Space heating zone circuit System pump Note This drawing is a sche...

Страница 28: ...irectly off of boiler Air vent 4 pipe dia max Expansion tank Water feed controls 4 pipe dia max Indirect DHW tank Anti scald mixing valve Cold water Domestic hot water out Note This drawing is a schem...

Страница 29: ...f of boiler Low temp radiant zone Low temp radiant zone Air vent Water feed controls Expansion tank 4 pipe dia max Indirect DHW tank Anti scald mixing valve Domestic hot water out Cold water Note This...

Страница 30: ...adiant zone Space heating zone circuit Air vent Water feed controls Expansion tank Common piping must be sized for the combined water flow of all of the boilers 4 pipe dia max 4 pipe dia max 4 pipe di...

Страница 31: ...the boilers High temp space heating zone circuit 4 pipe dia max 4 pipe dia max 4 pipe dia max Indirect DHW tank Note Indirect pump must be sized for boiler and indirect Anti scald mixing valve Domest...

Страница 32: ...must be installed in water conditions of 10 gpg hardness or less with a pH range of 6 5 to 9 5 pH Values outside of this range may reduce the life expectancy of the product Operating the NTV in water...

Страница 33: ...water heating applications Fig 18 DHW Piping One Heater Two Vertical Tanks 6B 5 NTV Suggested Piping Schematics Figures 17 19 show suggested piping configurations for NTV boilers These diagrams are on...

Страница 34: ...dup and failure of the heat exchanger 6B 7 Condensate Drain Trap A condensate drain trap is included with the boiler and is supplied to drain the boiler of condensate The vent condensate should be dra...

Страница 35: ...pply voltage is toggled as a call for heat signal premature failure of these components may result The Brute Elite does not recognize 4 mA as a signal to shut off If the call for heat is not connected...

Страница 36: ...Page 32 Bradford White Corp Fig 20 Electronics Panel Layout TB5 TB2 TB1 Primary controller upper burner Secondary controller lower burner TB7 TB6 TB4 TB3 TB10 TB9...

Страница 37: ...d on the control panel All 24 VAC power is supplied through a circuit breaker that is part of the transformer The transformer is then connected to terminal blocks 1 and 2 TB1 and TB2 7 4 Signal Connec...

Страница 38: ...Page 34 Bradford White Corp Fig 21 Ladder Diagram...

Страница 39: ...Page 35 Brute Elite Boilers and Water Heaters Fig 22 Wiring Diagram...

Страница 40: ...Page 36 Bradford White Corp...

Страница 41: ...and to present information about the operation of the boiler Each boiler includes a touchscreen but in a typical installation only the touchscreen on one of the boilers will be active Fig 23 Controls...

Страница 42: ...d corner Return to Home page Bell Upper left hand corner System in Lockout Reset required Padlock Upper right hand corner Shows whether a password has been entered so parameters can be changed Back Up...

Страница 43: ...ion we will explain how to check the Lead Lag information while the system is running 1 Start at the Home screen Fig 29 Fig 29 Home Screen Up to 8 controllers or up to 4 boilers can be displayed on th...

Страница 44: ...tion of the whole system You might also want to check the functions on one of the individual controllers and the system gives you a way to do this 1 From the Home screen Fig 33 press the icon for the...

Страница 45: ...screen shown in Fig 36 is part of a large loop that covers all of the parameters used by the system To go to another part of the loop press the left arrow or right arrow at the top of the screen Here...

Страница 46: ...4 Next we will show you how to change one of these parameters Let s turn on the Central Heat function On the Configuration Screen Fig 39 scroll down and press the line for CH Central Heat Configurati...

Страница 47: ...meters in this group have safety related functions If you change any of them you will have to do the verification for the whole group Fig 43 Verification Needed Notes Once you change one of these safe...

Страница 48: ...heck the list carefully Press Yes if all of the parameters in the group have been entered correctly If you made changes in other safety related groups verify the entries in those groups in the same wa...

Страница 49: ...iple boiler installation each individual boiler is still set up as shown in Fig 48 The boiler controls are arranged in a daisy chain using a Modbus connection with the Secondary control of one boiler...

Страница 50: ...Primary burner on a particular boiler may start first one time and the Secondary burner for that boiler may start first the next time When the Run sequence is initiated the burner with the least amoun...

Страница 51: ...all four reach 65 all are allowed to go over 65 The Lead Lag controller will change the firing order of the burners based on the run time of each burner 9 1 3 NTH Lead Lag with Indirect Domestic Hot...

Страница 52: ...Page 48 Bradford White Corp Fig 51 Connection Terminals...

Страница 53: ...Table 12 Installations for Special Options 9 3 Brute Elite System Configurations Brute Elite s can be installed in many different arrangements The steps in the installation will be different depending...

Страница 54: ...t the date and time on the system System 2 Single boiler Local control Outdoor reset Job I Set the parameters used by the Lead Lag system Job J Install the System sensor and adjust the setpoint Job K...

Страница 55: ...Lead Lag Master Job E Set up the Modbus control addressing to assign addresses for each of the controls Job F Set up the addresses for the flap valves Job G Disconnect the Operator Interfaces that wi...

Страница 56: ...of the controls Job F Set up the addresses for the flap valves Job G Disconnect the Operator Interfaces that will not be used Job H Connect the Modbus wiring Job I Set the parameters used by the Lead...

Страница 57: ...controls Job F Set up the addresses for the flap valves Job G Disconnect the Operator Interfaces that will not be used Job H Connect the Modbus wiring Job I Set the parameters used by the Lead Lag sy...

Страница 58: ...e boiler System control 4 20 mA modulation control Outdoor reset 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...

Страница 59: ...s 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 Set up the addresses for the flap valves Job G Disconnect the Operat...

Страница 60: ...ace on each boiler Each boiler includes two separate controls as shown in Fig 48 In a system with four boilers there will be eight separate controls See Fig 49 The first job is to name each of these c...

Страница 61: ...ontrollers and they all operate together as part of the Lead Lag system There is only one Lead Lag Master in the system Usually the controller used for this is the Primary controller on Boiler 1 Other...

Страница 62: ...with the Secondary controller for Boiler 1 and make sure this is not set up as a Master Fig 59 Home Screen 2 The system will take you to the Status Summary screen Fig 60 Status Summary Screen 3 To di...

Страница 63: ...me screen on the first boiler See Fig 63 Fig 63 Home Screen 4 Press the Setup button in the lower right hand corner to go to the Setup screen Fig 64 Setup Screen 5 Press the Control Setup button Figur...

Страница 64: ...lve See Fig 67 A flap valve acts like a one way valve or check valve If one burner in a boiler is operating and the other is not one of the flap valves will close to prevent exhaust air from moving ba...

Страница 65: ...ller you want to work with The system will take you to the Status Summary screen for that controller Fig 69 Status Summary Screen 3 Press the Configure button Figure 70 shows the Configuration screen...

Страница 66: ...ch of the boilers In this example we are still working with the Primary control for Boiler 1 From the table you can see that this control should have a flap valve ID of 1 Enter the correct ID from Tab...

Страница 67: ...refully Press Yes if all of the parameters in the group have been entered correctly 12 The system will tell you to reset the control system Fig 77 Safety Parameter Reset You must press the Reset butto...

Страница 68: ...ed Operator Interface 4 Close the front door and turn on power to the boiler Job H Connect the Modbus Wiring This is an individual function do this on each of the controls In an installation with mult...

Страница 69: ...set up as the Lead Lag Master usually the Primary controller on Boiler 1 We have already explained how the Lead Lag Master controls the operation of the Lead Lag system Your job at this point is to e...

Страница 70: ...resis value On hysteresis The system will not fire the burners until the System sensor reaches the LL CH Setpoint minus an additional hysteresis value P I D Gain These control the damping used by the...

Страница 71: ...ine of the screen DHW priority override time If Domestic Hot Water has priority see the next line below this sets how long the DHW loop will have priority before returning to control by the Lead Lag C...

Страница 72: ...When enabled the Warm Weather Shutdown feature will turn off the Central Heating functions when the outdoor temperature exceeds the setpoint This prevents the system from running when there is no nee...

Страница 73: ...he location shown in Fig 91 Connect the System sensor to the System terminals on the controller acting as the Lead Lag Master usually the Primary controller on Boiler 1 Use terminals 3 and 4 on TB6 2...

Страница 74: ...for the Lead Lag setpoint depending on the outdoor temperature This allows the system to adjust for changes in the outdoor temperature and run more efficiently The Show Line button at the bottom of th...

Страница 75: ...er temperature setting This is located on the main Lead Lag Configuration screen How to get there Lead Lag Master Configuration Screen Home Page Press Lead Lag Master button Lead Lag Screen Press Conf...

Страница 76: ...n TB7 3 Enable a central heat call for each control on the system This function must be set up for each controller separately This function operates outside of the Lead Lag system How to get there Cen...

Страница 77: ...ondary controller Secondary burner Operator interface Boiler 1 Fig 97 Primary and Secondary Burners in a Boiler Fig 98 High and Low Fire Adjustments on Gas Valve BNT 1000 High fire adjustment Low fire...

Страница 78: ...ner Enable switch in the upper left hand corner of the screen Since you selected the Secondary control for this boiler this will turn off the Secondary burner The system will ask you to log in as you...

Страница 79: ...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 Manual in Run and Standby Using this setting the manual control will set...

Страница 80: ...n On the Home screen press the icon for the Secondary controller On the Status Summary screen press the Operation button On the Operation screen for the Secondary burner press the yellow box for the F...

Страница 81: ...ressure gauge and plug the ports Repeat the test setup on each burner Job P Setting the Date and Time on the System Display This is a Lead Lag function do this once for the whole Lead Lag system Use t...

Страница 82: ...emand The DHW pump will start circulating water through the loop in the indirect water heater The System sensor is used to control modulation in this configuration so sensor placement is critical This...

Страница 83: ...should be jumpered from the Primary control in each boiler terminals 5 and 6 on TB6 to terminals 7 and 8 on TB6 The LL CH setpoint used by all of the boilers is set in the normal way working from the...

Страница 84: ...ay connect a DHW sensor or the input from the aquastat to terminals 5 and 6 on TB6 Be sure there is no thermostat connected check terminals 5 and 6 on TB7 The two burners in each boiler will operate i...

Страница 85: ...the COM2 tab to bring up the setup screen for the COM2 function Click the box labeled Enable COM2 Port See Fig 121 9 7 Setup for High Altitude Operation BNT 1700 Only This is an individual function do...

Страница 86: ...atus Summary screen Configure button Configuration Menu Select Statistics Configuration line Boiler Name This parameter allows the installer to give each controller a unique name Home screen Select a...

Страница 87: ...Master screen Configure button Lead Lag Master Configuration screen Advanced Settings button Left or Right arrow buttons Outdoor Reset screen CH Central Heat Off Hysteresis The off hysteresis is adde...

Страница 88: ...Central Heat call for heat when both of these are enabled and active The DHW priority also may shift for a period of time as specified by DHW Priority time and method parameters Home screen Lead Lag...

Страница 89: ...n screen Flap valve controller ID Each flap valve has a unique ID number On a system with 4 boilers there would be 8 flap valves numbered 1 through 8 Home screen Select a controller Status Summary scr...

Страница 90: ...or Domestic Hot Water when the Lead Lag system is enabled Home screen Lead Lag Master button Lead Lag Master screen Configure button Lead Lag Master Configuration screen Lead lag DHW TOD setpoint This...

Страница 91: ...have a unique Modbus address Be sure to enter this for each controller in the system Home screen Select a controller Status Summary screen Configure button Configuration Menu Select line for LL Slave...

Страница 92: ...Home screen Select a controller Status Summary screen Configure button Configuration Menu Select Statistics Configuration Temperature units This parameter determines whether temperature is represente...

Страница 93: ...l system and any gas control that may have been under water Section 10 Operating Instructions 10 1 Filling the Boiler System 1 Ensure the system is fully connected Close all bleeding devices and open...

Страница 94: ...tion The initial setup must be checked before the unit is put into operation Problems such as failure to start rough ignition strong exhaust odors etc can be due to improper setup Damage to the boiler...

Страница 95: ...Appliance control f Flow switch b Automatic gas valve g Low water cutoff c Pressure switches h Burner d Blower i Heat exchanger e Pump Do the following once every six months 1 If a strainer is employ...

Страница 96: ...and a sense rod To remove the ignitor assembly shut off the 120 Volt power supply to the unit Turn off all manual gas valves connecting the unit to the main gas supply line Remove the front door of t...

Страница 97: ...move the nuts located on the outside diameter of the burner door to the heat exchanger 4 Remove the burner door burner assembly from the heat exchanger 5 Disconnect the condensate drain line 6 Attach...

Страница 98: ...Conversion Brute Elite s can easily be converted from natural to propane gas or from propane to natural gas If a gas conversion is performed the unit must be identified with the appropriate gas label...

Страница 99: ...Lag Arrangement in a Multiple Boiler Installation 12 1 1 Controller Synchronization On a multiple boiler installation the individual boiler controllers are arranged in a daisy chain using a Modbus co...

Страница 100: ...lated parameter but do not finish the verification process For more information on verification see Section 8 8 Primary burner Primary controller Flap valve Flap valve Secondary controller Secondary b...

Страница 101: ...stop it 12 2 2 Viewing the Lockout and Alert Histories 1 To view the Lockout history start at the Home screen Fig 124 Fig 124 Home Screen 2 Press the Lead Lag Master button Figure 125 shows the Lead L...

Страница 102: ...Page 98 Bradford White Corp Fig 128 Alert Log Screen To get more information on a particular alert touch the entry for that alert on the screen...

Страница 103: ...figuration mode and safety parameters need verification and a device needs reset to complete verification 2 Configuration ended without verification re enter configuration verify safety parameters and...

Страница 104: ...2 If fault repeats replace module 18 Internal fault Safety relay test failed due to feedback not ON L Internal fault 1 Reset module 2 If fault repeats replace module 19 Internal fault Safety RAM writ...

Страница 105: ...Internal fault 1 Reset module 2 If fault repeats replace module 32 46 Internal fault Safety Key 0 through 14 L Internal fault 1 Reset module 2 If fault repeats replace module 47 Flame Rod to ground l...

Страница 106: ...wiring and correct any faults 2 Check Preignition Interlock switches to assure proper functioning 3 Check the valve operation 4 Reset and sequence the module monitor the PII status 5 If code persists...

Страница 107: ...ule 91 Inlet sensor fault H 1 Check wiring and correct any possible errors 2 Replace the Inlet sensor 3 If previous steps are correct and fault persists replace the module 92 Outlet sensor fault H 1 C...

Страница 108: ...orrect any errors 2 Make sure that the flame detector is wired to the correct terminal 3 Make sure the F G wires are protected from stray noise pickup 4 Reset and sequence the module if code reappears...

Страница 109: ...hardware test Not a lockout 111 Flame current lower than weak threshold H Hold time of recycle and hold option Will not be a lockout fault Hold Only Internal hardware test Not a lockout 113 Flame circ...

Страница 110: ...ariable speed Fan Drive ability to change speeds 3 Change the VFD 4 If the fault persists replace the module 137 ILK Interlock failed to close H 1 Check wiring and correct any possible shorts 2 Check...

Страница 111: ...rs replace the module 157 Combustion pressure and flame OFF L 1 Check that flame is not present in the combustion chamber Correct any errors 2 Make sure that the flame detector is wired to the correct...

Страница 112: ...le 2 If fault repeats replace module 174 Safety relay feedback incorrect L Internal Fault 1 Reset module 2 If fault repeats replace module 175 Safety relay open L Internal Fault 1 Reset module 2 If fa...

Страница 113: ...grounding 3 If fault repeats replace module 194 Invalid ignite failure response setting L 1 Return to Configuration mode and recheck selected parameters reverify and reset module 2 If fault repeats v...

Страница 114: ...al grounding 3 If fault repeats replace module 205 Invalid Outlet high limit response setting L 1 Return to Configuration mode and recheck selected parameters reverify and reset module 2 If fault repe...

Страница 115: ...219 Invalid Stack limit response setting L 1 Return to Configuration mode and recheck selected parameters reverify and reset module 2 If fault repeats verify electrical grounding 3 If fault repeats re...

Страница 116: ...fault repeats replace module 230 Invalid CH Central Heat demand source setting L 1 Return to Configuration mode and recheck selected parameters reverify and reset module 2 If fault repeats verify elec...

Страница 117: ...ion mode and recheck selected parameters reverify and reset module 2 If fault repeats verify electrical grounding 3 If fault repeats replace module 239 Invalid Header connector type setting L 1 Return...

Страница 118: ...ol I O button leads to Fig 129 Fig 129 Burner Control I O Screen A green dot indicates a function that is on 2 Press the Digital I O button to look at functions where the functions are either on of of...

Страница 119: ...ry Screen Configure button Configuration Menu Select Statistics Configuration line Statistics Configuration Screen Fig 135 Statistics Configuration Screen 12 7 Analysis The control system includes an...

Страница 120: ...nitiation sequence also delays the boiler demand from being energized and re energized from an intermittent AC line input or control input If an AC problem exists for more than 240 seconds a lockout w...

Страница 121: ...Setpoint plus the Lead Lag Central Heat Off Hysteresis value approx 10 F 12 At the end of the Lead Lag Central Heat request the burner is switched off The fan stays on until Post Purge is complete 13...

Страница 122: ...re Switch is not reached within four minutes and fifteen seconds after the blower is commanded to drive to the light off rate fan RPM at the end of Prepurge Locks out if the Main Valve terminal is ene...

Страница 123: ...0 LG 10 10J3038 BRACKET PIPE 11 10J7006 BRACKET MOUNTING SLIDE TOP 12 10J1270 BRACKET ANGLE STIFFENING CONTROL MOUNT 13 10J7013 BRACKET MOUNTING SIDE BOTTOM 14 10J1204 CROSS BRACE HX BASE 15 10J1205 S...

Страница 124: ...5 COVER ACCESS FIELD CONNECTIONS 59 S2008000 GASKET CLOSED CELL 75 X 06 X 4 5 CUT LG 60 17J3030 GASKET HX OUTLET BNT 1 7 61 17J3031 PLATE RETAINER GASKET 62 17J2520 PLATE ASSY CONNECTION INLET 63 S211...

Страница 125: ...M ID 94 RA2113100 BLOWER COMBUSTION AIR 100 S2116800 GASKET FAN FLANGE 101 P0026800 PLUG PIPE BRASS 1 4 NPT P2080300 PLUG PIPE STAINLESS STEEL 1 4 NPT 102 P0071500 PLUG 3 4 STEEL P2080200 PLUG 3 4 STA...

Страница 126: ...M4 X 30MM CHEESE HD 136 P2014200 PLUG HD 1 4 NPT SQ SOCKET BLK 137 R10J5150 TRANSITION ASSEMBLY VENTURI W PARTS V2018600 ADAPTER 4MM HOSE BARB X M5 8 W WASHER Q0068441 1 4 TUBE PRESSURE SENSING BNT 6...

Страница 127: ...17100 GASKET BURNER 187 R2071700 RL20202 BURNER W GASKET 188 R2071500 R2071500 IGNITOR SPARK W GASKET 189 RW2013300 RW2013300 GASKET IGNITOR 190 S2112600 S2112600 FLANGE NUT M6 SERRATED 191 RS2114200...

Страница 128: ...TRAP 213 A2119700 A2119700 TRAP CONDENSATE 214 10J126900 10J126900 BRACKET MOUNTING TRAP 215 P2073200 P2073200 COUPLING 3 4 TO 1 2 REDUCING PVC 216 P2067701 PIPE PVC 1 2 X 1 49 LONG SCH 40 217 10J1237...

Страница 129: ...Page 125 Brute Elite Boilers and Water Heaters Fig 140 Machine Frame BNT1000 13 3 PARTS ILLUSTRATIONS...

Страница 130: ...Page 126 Bradford White Corp Fig 141 Rear Panel BNT1000 Fig 142 Rear Panel BNT1700...

Страница 131: ...Page 127 Brute Elite Boilers and Water Heaters Fig 143 Machine Frame BNT1700...

Страница 132: ...Page 128 Bradford White Corp Fig 144 Front Panels and Covers BNT1000 and BNT1700...

Страница 133: ...Page 129 Brute Elite Boilers and Water Heaters Fig 145 Burners and Combustion Chamber BNT1000...

Страница 134: ...Page 130 Bradford White Corp Fig 146 Burners and Combustion Chamber BNT1700...

Страница 135: ...Page 131 Brute Elite Boilers and Water Heaters Fig 147 Heat Exchanger Components BNT1000 and BNT1700 Fig 148 Burner Detail BNT1000...

Страница 136: ...Page 132 Bradford White Corp Fig 149 Burner Detail BNT1700...

Страница 137: ...Page 133 Brute Elite Boilers and Water Heaters Fig 150 Electronic Components Fig 151 Condensate Trap BNT1000...

Страница 138: ...Page 134 Bradford White Corp Fig 152 Condensate Trap BNT1700 Fig 153 Flow Switch BNT1000 and BNT1700...

Страница 139: ...Page 135 Brute Elite Boilers and Water Heaters This page intentionally left blank...

Страница 140: ...Page 136 Bradford White Corp This page intentionally left blank...

Страница 141: ...ange without notice in accordance with our policy of continuous product improvement Ambler PA 19002 Tech Service 800 334 3393 Service Parts 800 538 2020 www BradfordWhite com Warranty Service 800 531...

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