Bradford White BNTH Installation And Operation Instructions Manual
  1. Manuals
  2. Brands
  3. Bradford White Manuals
  4. Water Heater
  5. BNTH
  6. Installation and operation instructions manual

Bradford White BNTH Installation And Operation Instructions Manual

Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
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 ELITE
Modulating Boiler
Model BNTH
Sizes 080–850 MBTU/h
Water Heater
Model BNTV
Sizes 150–850 MBTU/h
AVERTISSEMENT
Assurez-vous de bien suivres les instructions
données dans cette notice pour réduire au
minimum le risque d'incendie ou d'explosion ou
pour éviter tout dommage matériel, toute
blessure ou la mort.
Ne pas entreposer ni utiliser d'essence ni
d'autres vapeurs ou liquides 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 1243
238-49220-00A REV 4/11

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the BNTH and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Bradford White BNTH

Summary of Contents for Bradford White BNTH

  • Page 1 Installation and Operation Instructions Document 1243 Installation and Operation Instructions for BRUTE ELITE Modulating Boiler Model BNTH Sizes 080–850 MBTU/h Water Heater Model BNTV Sizes 150–850 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

    8.12.4 Lead Lag Hysteresis ........39 Water Connections - BNTH Boiler 8.12.5 Lead Lag Base Load Setting ......39 6A.1 BNTH System Piping: Hot Supply Connections 20 8.13 Boiler Pump Interrupt ........39 6A.2 BNTH Cold Water Make-Up ......20 6A.3...
  • Page 3 Brute Elite Page 3 SECTION 9. SECTION 11. Modes of Operation Maintenance Hydronic Heating Demand ......40 11.1 System Maintenance ........46 Hydronic Heating with Outdoor Reset ... 40 11.2 Appliance Maintenance and Component Description ............ 46 Hydronic Heating with Domestic Hot Water (DHW) Priority ........

  • Page 4: General Information

    RADFORD HITE ORP. Page 4 All installations must be made in accordance with SECTION 1. 1) American National Standard Z223.1/NFPA54-Latest General Information 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 WARNING having jurisdiction.
  • Page 5 Brute Elite Page 5 Figure 1. Location of Components, Sizes 80–105. Figure 2. Location of Components, Sizes 150-210.
  • Page 6 RADFORD HITE ORP. Page 6 Figure 3. Location of Components, Size 285. Figure 4. Location of Components, Size 399.
  • Page 7 Brute Elite Page 7 Figure 5. Location of Components, Size 500. Figure 6. Location of Components, Size 600.
  • Page 8 RADFORD HITE ORP. Page 8 Figure 7. Location of Components, Sizes 750 and 850.

  • Page 9: Appliance Overview

    Brute Elite Page 9 1.3 Appliance Overview 1.5 Unpacking Figures 1 through The Brute Elite is shipped in a single crate with the following standard components packed with the appliance (see Figure 1.4 Warranty A. exhaust vent terminal Bradford White’s Brute Elite appliances are (US only) B.
  • Page 10 Brute Elite is shipped with adapters for the air and vent that accept standard pipe of the proper size and type. SIZE IN CM IN CM 80 BNTH 13½ 34 9½ 24 18¼ 46 7½ 19 10¾ 28 11¾ 30 13¾...

  • Page 11: Locating The Appliance

    Brute Elite Page 11 SECTION 2. Locating the Appliance 2.1 Locating the Appliance SUGGESTED SERVICE ACCESS CLEARANCE APPLIANCE SURFACE INCHES Brute Elite is for indoor installations only. Left Side The appliance should be located to provide Right Side clearances on all sides for maintenance and inspection. It should not be located in an area where leakage of any connections will result in damage to the area adjacent to Back...

  • Page 12: Venting And Combustion Air

    RADFORD HITE ORP. Page 12 Method 1: Two permanent openings, one SECTION 3. commencing within 12" (300mm) of the top and one Venting and Combustion Air commencing within 12" (300mm) of the bottom, of the enclosure shall be provided. The openings shall communicate directly, or by ducts, with the outdoors or 3.1 Combustion Air spaces that freely communicate with the outdoors.

  • Page 13: Venting

    Brute Elite Page 13 combustion air intake (see Table 4), sized per Table The unit’s vent can terminate through the roof, or Route the intake to the boiler as directly as possible. Seal through an outside wall. all joints. Provide adequate hangers. The unit must not When using PVC/CPVC for vent material, venting support the weight of the combustion air intake pipe.

  • Page 14: Venting Requirements Unique To Canada

    RADFORD HITE ORP. Page 14 one must be installed in the vent system external to the units unless the vent system meets this Brute Elite unit. A flue gas sampling port available as a requirement. Brute Elite units are never permitted component of the ULC S636 certified vent system is to share a vent with Category I appliances.

  • Page 15: Side Wall Combustion Air Terminal

    Brute Elite Page 15 Figure 12 shows the requirements for mechanical 12" (30cm) away from the air inlet. Vent outlets vent terminal clearances for the U.S. and Canada. for models 399-850 must be at least 12" above the Vent terminals for condensing appliances or top of the air inlet, and must be at least 36"...
  • Page 16 RADFORD HITE ORP. Page 16 U.S. Installations (see note 1) Canadian Installations (see note 2) A= Clearance above grade, veranda, porch, 12 inches (30 cm) 12 inches (30 cm) deck, or balcony See note 6 See note 6 B= Clearance to window or door that may be Direct vent only: 12 inches (30cm);...

  • Page 17: Common Vent Test

    Brute Elite Page 17 one-half (1/2) inch in size: "GAS VENT DI- RECTLY 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 18: Gas Supply And Piping

    RADFORD HITE ORP. Page 18 3. Insofar as it is practical, close all building doors and SECTION 4. windows and all doors between the space in which Gas Supply and Piping the appliances remaining connected to the common venting system are located and other spaces of the building.

  • Page 19: Pump Requirements

    Brute Elite Page 19 SECTION 5. BRUTE ELITE NATURAL GAS Pump Requirements REQUIRED TO SIZE PIPING: CU FT SIZE / HR. Measure linear distance from meter outlet to last boiler. Add total input of all boilers and divide by 5.1 Brute Elite Boiler Flow and Head 1000 to obtain cu ft / hr required.

  • Page 20: Section 6A

    Figures 17-19. Section 6 is divided into two parts. The first is Brute Elite BNTH models can be ordered with or for BNTH models and is Section 6A. The without a pump included. second is for BNTV models and is Section 6B.

  • Page 21: Freeze Protection

    6A.3 Freeze Protection 6A.4 BNTH Suggested Piping Schematics Figures 15 through 21 show suggested piping configurations for BNTH boilers. These diagrams are WARNING Glycol must not be used in domestic hot water only meant as a guide. All components or piping applications.
  • Page 22 RADFORD HITE ORP. Page 22 Figure 15. Hydronic Piping — Single Boiler (zoning with circulators).
  • Page 23 Brute Elite Page 23 Figure 16. Hydronic Piping — Single Boiler, Low Temp Radiant Space Heating using Low Loss Header and Zone Valves.
  • Page 24 RADFORD HITE ORP. Page 24 Figure 17. Hydronic Piping — Multiple Boilers (zoning with circulators).
  • Page 25 Brute Elite Page 25 Figure 18. Hydronic Piping — Multiple Boilers with Indirect DWH Tank Piped from System Loop.
  • Page 26 RADFORD HITE ORP. Page 26 Figure 19. Hydronic Piping — Multiple Boilers, Reverse Return, Multi-Temp Zones (zoning with circulators).
  • Page 27 Brute Elite Page 27 Figure 20. Hydronic Piping — Heating zones with indirect DWH tank piped with zone pumps (indirect directly off boiler). Boiler pump must shut down during DHW.
  • Page 28 RADFORD HITE ORP. Page 28 Figure 21. Hydronic Piping, multiple boilers with indirect DWH off one boiler. Boiler pump must shut-down during DHW.

  • Page 29: Section 6B

    Section 6 is divided into two parts. The first is pipe, consideration should be given to the type of for BNTH models and is Section 6A. The hangers and supports used. Rigid hangers may transmit second is for BNTV models and is Section 6B.

  • Page 30: Cold Water Make-Up

    RADFORD HITE ORP. Page 30 6B.3 Cold Water Make-Up 6B.5 BNTV Suggested Piping Schematics The cold water make-up may be connected to the Figures 23-26 show suggested piping tank or to the inlet of the boiler as shown in Figures 23- configurations for BNTV boilers.
  • Page 31 Brute Elite Page 31 NOTES: 1. Optional CWMU & Recirc. line location. 2. Locate BNTV DHW sensor or remote aquastat well in lower 1/3 of tank. 3. Back flow preventer may be required - check local codes. 4. Thermal expansion tank may be required - check local codes.

  • Page 32: Electrical Connections

    RADFORD HITE ORP. Page 32 SECTION 7. Important Note: DO NOT MAKE/BREAK BRUTE ELITE LINE VOLTAGE TO SIGNAL CALL FOR HEAT. Electrical Connections A “call for heat / end call for heat” MUST be connected to the field interlock terminals. Some Brute Elite components are designed to have constant voltage WARNING during normal operation.

  • Page 33: Pump Connections

    The outdoor air temperature sensor is used for warm weather shutdown and outdoor reset. Minimum 15A circuit required Table 10. BNTH Electrical Data. 7.6 Domestic Hot Water Connection Connect a DHW sensor or aquastat to terminal block 6 (TB6), connections labeled DHW stat. The...
  • Page 34 RADFORD HITE ORP. Page 34 Figure 28. Lead-Lag / Cascading Wiring Connections.

  • Page 35: Wiring Diagrams

    Brute Elite Page 35 7.11 Wiring Diagrams (see Figures 29 and 30) Caution Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation. Verify proper operation after servicing Figure 29. Ladder Diagram.
  • Page 36 RADFORD HITE ORP. Page 36 Figure 30. Wiring Diagram (all sizes).

  • Page 37: Display Navigation

    Brute Elite Page 37 Once the value is adjusted the NEXT or DONE button SECTION 8. can be pressed. The DONE button returns you to the Brute Elite Control Setup Home screen. The NEXT button increments the display and Operation to the next item in the menu structure.

  • Page 38: Modulation Control

    RADFORD HITE ORP. Page 38 Prepurge timer is started once the prepurge RPM is 8.5 Anti-Short Cycle (ASC) achieved. The anti short cycle period is started whenever the Pre ignition time of 2 seconds to check the flame gas valve turns off. This period is to help prevent short sensor operation and status.

  • Page 39: Lead Lag Setpoint

    Brute Elite Page 39 will help reduce the chance of short cycling. DANGER 8.12.5 Lead Lag Base Load Setting • Water temperature over 125°F (52°C) can cause The lead lag system uses a base load setting that is severe burns instantly or death from scalds. set through the "setup"...

  • Page 40: Modes Of Operation

    RADFORD HITE ORP. Page 40 SECTION 9. once the fan RPM reaches a preset level. The trial for ignition period follows once the start-up RPM of the fan Modes of Operation is reached. The trial for ignition period lasts 4 seconds during which, the direct spark ignition system and gas valve are energized.

  • Page 41: Hydronic Heating Using Local Lead-Lag/Cascading Feature

    Brute Elite Page 41 setpoint is used to limit the maximum water temperature All three boilers will continue to fire simultaneously at leaving the boiler only. The modulation rate is equal input rates or… controlled by a 4-20mA (0-10Vdc using converter) Modulation rate approaches minimum firing rate signal supplied by an external control.

  • Page 42: Domestic Hot Water Heating Using External Modulation Control

    RADFORD HITE ORP. Page 42 firing rate is controlled by the DHW setpoint The ignition process consists of a prepurge, trial for temperature and the water temperature at the heat ignition, and run period. The prepurge period starts on a exchanger outlet.

  • Page 43: Operating Instructions

    Ensure the system is fully connected. Close all 14. Prime condensate trap with water (not required for bleeding devices and open make-up water valve. BNTH 600, 750, 850). Allow system to fill slowly. 15. Refer to local codes and the make-up water valve If make-up water pump is employed, adjust manufacturer’s instructions as to whether the...

  • Page 44: Boiler Setup And Adjustment

    RADFORD HITE ORP. Page 44 label and turn on gas and electrical power to Table 16. If the CO is not within the range appliance. shown, adjustments may be made. To adjust the Brute Elite will enter the start sequence. Blower low fire CO , locate the low fire adjuster screw and pump will energize for pre-purge, then the...
  • Page 45 Brute Elite Page 45 80–285 750, 850 Figure 33B. Brute Elite Gas Valves (600, 750 and 850). Figure 33A. Brute Elite Gas Valves (285, 399 and 500).

  • Page 46: Maintenance

    RADFORD HITE ORP. Page 46 qualified service technician should inspect the basic SECTION 11. items listed below every year: Maintenance a. Appliance control f. Flow switch b. Automatic gas valve g. Low water cutoff WARNING c. Pressure switches h. Burner Disconnect all power to the appliance before d.

  • Page 47: Ignitor Assembly

    Brute Elite Page 47 appliance and shut off all manual gas valves to the ignitor assembly to the burner door. Remove and appliance. Remove the front door to the appliance and replace the old ignitor assembly gasket. Reinstall a new the control panel plastic bezel.

  • Page 48: Transformer With Integral Circuit Breaker

    RADFORD HITE ORP. Page 48 11.2.6 Transformer with Integral Circuit Caution Breaker Black carbon soot buildup on a dirty heat exchanger The appliance has a 24Vac transformer with can be ignited by a random spark or flame. To integral 4 amp circuit breaker installed for supplying the prevent this from happening, dampen the soot control voltage required for the appliance only.

  • Page 49: Gas Pressure Switches (Optional)

    Brute Elite Page 49 SECTION 12. 11.2.9 Gas Pressure Switches (optional) The high and low gas pressure switches are 24V Trouble Shooting manual reset switches that act to cut power to the gas valves if the gas pressure is too low or too high for 12.1 Sequence of Operation proper operation.
  • Page 50 RADFORD HITE ORP. Page 50 CODE# PROBLEM PROBABLE CAUSE SOLUTION COMMON LOCKOUT CODES Internal error Flame rod to ground Check wiring / probe grounded, dirty probe Flame rod to ground leakage Faulty flame detector Clean or replace flame detector 24VAC voltage low/high Faulty transformer Check/correct supply line voltage;...
  • Page 51 Brute Elite Page 51 CODE# PROBLEM PROBABLE CAUSE SOLUTION ALERT CODES Maximum cycle count Control operates correctly, was reached however the cycle count will not increment any higher than 999,999 cycles Replace controller or adjust the count using blue display Maximum hours count Control operates correctly, was reached...

  • Page 52: Replacement Parts 13.1 General Information

    RADFORD HITE ORP. Page 52...
  • Page 53 Brute Elite Page 53...
  • Page 54 RADFORD HITE ORP. Page 54...
  • Page 55 Brute Elite Page 55...
  • Page 56 RADFORD HITE ORP. Page 56 Figure 35. Jacket Components.
  • Page 57 Brute Elite Page 57 Figure 36A. Internal Components, Sizes 80–210. Figure 36B. Internal Components, Sizes 285–600.
  • Page 58 RADFORD HITE ORP. Page 58 Figure 36C. Internal Components, Sizes 750-850.
  • Page 59 Brute Elite Page 59 Figure 37A. Gas Train Components, Sizes 80-500.
  • Page 60 RADFORD HITE ORP. Page 60 Figure 37B. Gas Train Components, Sizes 600-850.
  • Page 61 Brute Elite Page 61 Figure 38. Heat Exchanger Components.
  • Page 62 RADFORD HITE ORP. Page 62 Figure 39. Electrical Components.
  • Page 63 Brute Elite Page 63...
  • Page 64 Dimensions and specifications subject to change without notice in accordance with our policy of continuous product improvement. ® Ambler, PA 19002 Tech. Service (800) 334-3393 www.BradfordWhite.com Service Parts (800) 538-2020 Warranty Service (800) 531-2111 Litho in U.S.A. © Bradford White 1102 Document 1243...

This manual is also suitable for:

BntvBrute elite bnthBrute elite bntv

Table of Contents