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 | Full Boiler Modulation: Multiple boiler firing rates are
automatically adjusted to satisfy the overall plant hot water or steam
demand. Either unison (parallel) or series modulation is used. |
| Boiler Monitoring: Flue gas temperature, smoke opacity, and
boiler draft may be monitored and trended. Warning alarms and burner
safety shutdown interlocks may be included. |
| Unmanned Boiler Plants: Provides for off-site monitoring and
control using internal modem or RS232/485 interface. Serves as a single
plant monitoring point for Building Automation Systems and personal
alphanumeric pagers. |
| Additional Monitoring and Control:
 | Pumps (Hot water distribution, feed water, oil, and gas
booster): Sequencing, monitoring, and variable speed control |
| Valves (Hot water generator isolation, deaerator, surge
tank, air handler heating coil): Sequencing, monitoring, and control
|
| Fresh air dampers and fans: sequence, monitor, and control
are based on number of boilers online |
| Generator fuel oil: Level control, pump control, main tank
selection and filtration |
| Cooling towers: Sequencing and fan speed control with wet
bulb optimization |
| Chillers and air compressors: Sequencing, monitoring, and
control
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