Bradford-White Corp BMT2V, BMT2H warranty Operating Temperature Control, External Boiler Operations

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Brute Deluxe (500-2000)

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pump, boiler, and radiation units for one (1) hour.

10.Recheck the water level in the expansion tank. If the water level exceeds ¼ of the volume of the expansion tank, open the tank drain, and drain to that level.

11.Shut down the entire system and vent all radiation units and high points in the system piping, as described in Step 4.

12.Close make-up water valve and check strainer in pressure reducing valve for sediment or debris from the make-up water line. Reopen make-up water valve.

13.Check gauge for correct water pressure and also check water level in the system. If the height indicated above the boiler insures that water is at the highest point in the circulating loop, then the system is ready for operation.

14.Refer to local codes and the make-up water valve manufacturer’s instructions as to whether the make- up water valve should be left open or closed.

15.After placing the unit in operation, the ignition system safety shutoff device must be tested. First, shut off the manual gas valve, and call the unit for heat. After the pre-purge and ignitor heat-up time, the main gas terminals will be energized, attempting to light, for four (4) seconds, and then will de- energize. The unit will go into lockout mode. Second, turn the power off and then on again, open the manual gas valve and allow the unit to light. While the unit is operating, close the manual gas valve and ensure that power to the main gas valve has been cut.

16.Within three (3) days of start-up, recheck all air bleeders and the expansion tank as described in Steps 4 and 8 above.

Important: The installer is responsible for identifying to the owner/operator the location of all emergency shutoff devices.

WARNING

Do not use this appliance if any part has been under water. Immediately call a qualified service technician to inspect the appliance

and to replace any part of the control system and any gas control that may have been

under water.

6.3 Operating Temperature Control

All Brute Deluxe's are equipped with a two-stage aquastat. To utilize this mounted controller be sure to have the "Local/Remote" selector switch to "Local". Set the controller to the desired operating set point. The controller has an interstage differential that can be adjusted from 3°F to 10°F. This allows the user to have some control over how stage 2 and stage 1 call for heat (see Figure 22).

Because the Brute Deluxe controller senses inlet water and the manual reset high limit senses outlet water, the high limit should be set 40-50°F higher than the controller, to avoid nuisance lockout of the manual reset high limit.

6.4 External Boiler Operations

If controlling the stages of the BMT2 from an external source (multiple boiler control, BAS, etc) the "Local/Remote" selector switch above the terminal strip must be placed in the "Remote" position. In this mode, the controller that is mounted on the BMT2 will no longer have control of the unit. The 24V from the unit waits at the input terminal, and the external control switches this 24V from the input terminal to the stage terminal.

6.5 Limit Controls

The manual reset high limit control is provided as standard equipment on all heaters. An additional automatic reset switch is optional.A high limit temperature-sensing bulb is always located in the heater outlet. Burners will automatically shut down whenever overheating occurs.

6.6Operating the Burner and Set Up

6.6.1 Set Up for 0 to 2500 Feet Altitude

The Brute Deluxe appliance utilizes a modular

*1 Difference between the temperatures at which the two switches make R-W. Adjustable from 3°F to 10°F (1.7°C to 5.6°C) on standard models, or from 3.6°F to 12°F (2.0°C to 6.7°C); 55°F to 175°F (13°C to 79°C) models.

*2 Two DPDT switches operate in sequence. Each switch differential is fixed at approximately 3°F (1.7°C) on standard models, or 3.6°F (2.0°C); 55°F to 175°F (13°C to 79°C) models.

Figure 22. Honeywell L8008G.

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Contents Brute Deluxe Table of Contents General Information IntroductionModel Identification Clearances WarrantyDimensions Locating the Appliance57¾ 33¾ 16¾ 42545¾ 22¾ 50534¼ 10¼ 80¾ 16¾ 46¼22¾ 58¼ 28¾ 70¼Intake Combustion Air Venting and Combustion AirCombustion Air Combustion Air From RoomCommon Venting Systems VentingVent Categories Category I VentVertical Vent Terminal Locating Vent & Combustion Air TerminalsSide Wall Vent Terminal Side Wall Combustion Air TerminalCombustion Air and Vent Through Side Wall Vertical Combustion Air Terminal Common Vent Test BoilersNatural Gas Supply and PipingVent Terminals for Outdoor Units Natural Propane4A.1 Heating System Piping Hot Supply Connections Boiler Water Connections Boiler4A.4 Freeze Protection Boiler Water Connections Water Heater4A.2 Cold Water Make-Up Boiler 4A.3 Water Flow Requirements Boiler4B.5 Freeze Protection Water Heater Electrical Connections4B.2 Hot Water Supply Piping Water Heater 4B.3 Water Flow Requirements Water HeaterHydronic Piping Multiple Boilers, Primary Secondary System Hydronic Piping One Boiler, Multi-Temperature System Water Heater Piping One Heater, One Tank Water Heater Piping Multiple Heaters, One Tank Water Flow Requirements BMT2V Water Heater Piping Multiple Heaters, Multiple TanksField Wiring Main PowerBrute Deluxe 1000 Wiring Diagram Brute Deluxe 500-750 Connection Diagram Brute Deluxe 1000 Connection Diagram Brute Deluxe 1250-2000 Connection Diagram Filling the System External Staging Control WiringOperating Instructions Sequence of OperationExternal Boiler Operations Operating Temperature ControlOperating the Burner and Set Up Set Up for 0 to 2500 Feet AltitudeHigh Altitude Adjustment and Set Up Shutting Down the Brute Deluxe MaintenanceSystem Maintenance Appliance Maintenance Component DescriptionFilter Manual Reset High Limit ControlTemperature Control Flow SwitchTrouble Shooting Delayed Ignition Possible CausesResolving Lockouts High Gas Consumption Replacement PartsShort Cycling Water Heater Parts List see next Short Cycling BoilerInternal Components See Figure Sheet Metal Components See FigureGas Train Components See Figure Heat Exchanger Components See Figure Electrical Components See Figure Sheet Metal Components Internal Components Brute Deluxe Water Heater Brute Deluxe Hydronic BoilerElectrical Components

BMT2H, BMT2V, Hydronic Boiler, Water Volume Heater specifications

Bradford-White Corporation, a leader in the water heating and hydronic heating industries, offers an impressive range of products designed to meet diverse residential and commercial needs. Among their notable innovations are the BMT2V and BMT2H series hydronic boilers and water volume heaters, which combine state-of-the-art technology with user-friendly features.

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