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BurnerMate Universal. A Complete Boiler Control System. Preferred Instruments. Combustion and control business since 1920. Only domestic manufacturer of “linkage-less” controls. Only manufacturer with significant field service department.

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burnermate universal

BurnerMate Universal

A Complete Boiler Control System

slide2

Preferred Instruments

  • Combustion and control business since 1920.
  • Only domestic manufacturer of “linkage-less” controls.
  • Only manufacturer with significant field service department.
  • Strong network of representatives are boiler/burner/controls experts.
preferred instruments new burnermate universal

Preferred Instruments’ newBurnerMate Universal

  • “Linkage-less” controller incorporating:
  • Flame safeguard control
  • Parallel positioning combustion control w/ O2 trim
  • Draft control
  • Drum level control
  • And a whole lot more…
system components

BurnerMate Universal Boiler Controller

System Components

  • Controller Chassis:
  • Includes separate processors for FSG and combustion control in accordance with NFPA 85 paragraph 1.9.3.2.3.
  • Designed for sub-panel mounting.
  • Wiring is by quick disconnect terminal blocks.
system components1

BurnerMate Universal Boiler Controller

System Components

  • High Precision Servos:
  • Available in 3, 15, 37, 70, 140, 280, 420, and 720 ft-lb torques.
  • Triac input with feedback pot allows 0.1° accuracy.
  • All servos are daisy-chained on one digital loop.
  • Mounting kits are available for most existing valves & dampers.
system components2

BurnerMate Universal Boiler Controller

System Components

  • LCD Interface (required):
  • Can be flush-mounted on BMS enclosure or mounted to BMU chassis.
  • 4 x 20 character display is the primary interface to the controller.
  • Displays boiler status, alarms, annunciations, event history, etc.
system components3

BurnerMate Universal Boiler Controller

System Components

Optional 10” touch-screens available.

  • Graphical interface provides additional information, easier operator interface.
  • Modbus, Ethernet, and web-based communications are included for interfacing with EMS, BAS, or other LAN networks.
  • Designed to be flush-mounted in the BMS enclosure or remote-mounted.
touch screen graphics

BurnerMate Universal Boiler Controller

Touch screen graphics

Boiler overview screens provide current boiler operating conditions in an easy-to-understand graphical format.

touch screen graphics1

BurnerMate Universal Boiler Controller

Touch screen graphics

Color touch screens include “walk-thru’s” for easy controller configuration.

touch screen graphics2

BurnerMate Universal Boiler Controller

Touch screen graphics

Loop tuning screens provide familiar loop controller “faceplates” for easy configuration. Over 75 screens are pre-configured.

system components4

BurnerMate Universal Boiler Controller

System Components

  • Optional Communications Module:
  • Inexpensive module allows Modbus, Ethernet, and web-based remote monitoring.
  • BMU Modbus addresses are pre-programmed.
  • Designed to be sub-panel mounted.
system components5

BurnerMate Universal Boiler Controller

System Components

Preferred supplies a choice of three flame scanners:

  • IR, UV, and self-checking UV.
  • All flame scanners use identical military-style quick connect fittings.
  • The BMU will accept any U.L. listed flame scanner.
flame safeguard functions

BurnerMate Universal Boiler Controller

Flame Safeguard Functions

  • Stages the burner through purge, lightoff, main flame, and shutdown.
  • Supports up to three fuels (oil, natural gas, and a second gas fuel) Fuel changeover can be initiated locally or remotely.
  • Monitors up to 6 recycling limits, up to 33 shutdown limits and one or two flame scanners.
  • All limit inputs are 120 VAC, wired in parallel, and separately annunciated.
  • During a shutdown, all major status bits are recorded and saved for up to the last ten lockouts.
  • Adjustable time delays are available for many limits to avoid nuisance trips.
flame safeguard functions1

BurnerMate Universal Boiler Controller

Flame Safeguard Functions

  • Optional gas valve leak test logic.
  • Optional oil gun purge logic (blow-thru into the furnace, or suctioned back out of the gun via scavenger pump)
  • High flue gas temperature shutdown (added dry boiler protection)
fuel air ratio control functions

BurnerMate Universal Boiler Controller

Fuel-Air Ratio Control Functions

  • Jackshaft or parallel positioning combustion control is supported.
  • Up to 8 analog outputs available for fuel/air servos, and VSD’s for FD fan, FGR fan, and ID fan.
  • Up to 15 combustion control points can be programmed.
  • “Off-curve” points available for standby, purge, and light-off positions.
  • Optional O2 trim control is supported.
  • Separate curves available for VSD by-pass mode (in case of VSD failure)
fuel air ratio control functions1

BurnerMate Universal Boiler Controller

Fuel-Air Ratio Control Functions

  • Low fire and high fire rate limits can be temporarily configured to limit burner travel.
  • Problematic firing rates can be configured to be “skipped over” until the problem is resolved.
  • Burner can be warm-up slowly until FGR temperature reaches setpoint.
boiler control functions

BurnerMate Universal Boiler Controller

Boiler Control Functions

  • Single, two, or three-element PID feedwater control
  • Adjustable draft control is fully integrated into flame safeguard and fuel-air control algorithms.
  • Firing rate is used as a feed forward for both drum level and draft control.
  • VSD outputs available for ID fan and feedwater pump.
boiler control functions1

BurnerMate Universal Boiler Controller

Boiler Control Functions

  • Remote setpoint and remote firing rate control.
  • Outdoor air temperature reset
  • Warm standby and domestic hot water override
  • Low fire hold based on boiler shell or flue gas temperature.
  • Steam pressure or hot water control supported.
  • Five auxiliary relays can be configured to control additional boiler auxiliaries.
  • Supervised or automatic water column blowdown & low water level test logic.
  • Boiler cold start function allows for adjustable boiler thermal shock protection.
ease of operation

BurnerMate Universal Boiler Controller

Ease of Operation

  • No special sensors are required (common switches and transmitters can be used)
  • Preferred supplies flame scanners, or any U.L. listed scanners can be used. (BMU provides 120 VAC and 24 VDC power, and accepts a contact closure for proof of flame and analog input for optional flame intensity.
  • Servo set-up is easy, intuitive, and well-documented.
  • 33 basic parameters configure most control functions.
  • Flame safeguard logic is designed to U.S. standards (NFPA 85)
security features

BurnerMate Universal Boiler Controller

Security Features

  • Servos are “locked” into place on the fuel air curves. Putting a servo in manual will trip the burner.
  • Safety related parameters can only be changed when the burner is off-line.
  • Fuel-air curve points must be “verified” before the technician can exit commission mode.
  • Four levels of password security enable operators, technicians, engineers, and Preferred factory personnel access to parameter settings.
product support

BurnerMate Universal Boiler Controller

Product Support

  • BMU is Made in America. It is available only through Preferred and it’s factory trained representatives.
  • All components are in stock.
  • It is supported from the Preferred Utilities factory in Connecticut, outside sales offices in Massachusetts, Illinois, Texas, and Oregon, and factory trained representatives around the country.
  • Preferred has service engineers located throughout the U.S.
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