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BCS3000M-9
A. GENERAL INFORMATION
The Hauck Burner Control System (BCS) provides burner management and temperature control of
a single pilot ignited burner firing on gas, oil or liquid propane (LP). The spark ignited, gas fired
pilot is interrupted after the main burner flame has been established. Flame supervision is
provided by a Honeywell RM7890A flame relay combined with a R7849A1023 amplifier module
and one or two C7027A1049 UV detectors.
A Honeywell UDC3200 series microprocessor based instrument is provided for temperature
control. The controller is electronically linked to the burner control motor to automatically adjust
the burner firing rate and maintain process temperature near the controller’s setpoint.
The Temperature Controller’s thermocouple senses the temperature of the material or exhaust
gases as it exits the dryer, depending on where it’s positioned. The controller generates a position
proportional output based on the difference between the setpoint and the process temperature
input.
The CONTROL MODE selector switch enables the operator to assign control of the burner. The
center, LOW FIRE, position of this switch is used to hold the burner at low fire. The right, MAN
(manual) position enables the operator to increase (INC) or decrease (DEC) the burner position via
the MANUAL switch. The left, AUTO position enables the Temperature Controller to operate the
burner. The alarm contact of the High Temp Limit instrument is used to shut down the burner if
the preset high temperature limit is exceeded. An auxiliary temperature limit is also available as
an option. Refer to Appendix C for entering the desired alarm setpoints.
WARNING
This equipment is potentially dangerous with the possibility of serious personal injury
and property damage. Hauck Manufacturing Company recommends the use of flame
supervisory equipment and fuel safety shutoff valves. Furthermore, Hauck urges rigid
adherence to National Fire Protection Association (NFPA) standards and insurance
underwriter’s requirements. Operation and regular preventative maintenance of this
equipment should be performed only by properly trained and qualified personnel.
Annual review and upgrading of safety equipment is recommended.
NOTE
High temperature limits will not prevent baghouse fires. They will, when properly
installed and adjusted shut off the burner when a given temperature setpoint is
exceeded. Outside factors such as chemicals, bag contamination or other
ignition sources are beyond the control of the burner management system.
CAUTION
The
HIGH TEMP LIMIT
alarm setpoint is factory set at 400°F (204 °C). If the
system is equipped with a fabric dust collector (baghouse), consult the
manufacturer for recommended baghouse temperature limitations.
