Multiple Boiler Control

In multiple parallel boiler arrangements the plant master must output to each boiler s combustion controls.

Multiple boiler control.

There are numerous bus architectures available. Boiler staging if you use a tekmar control that should do the job. Master and central control of multiple boilers for overall system load control reduces boiler on off cycling due to system load management incorporates lead lag or unison modulation for steam or hot water boiler systems. Dcs plc or computer controlled smart instruments linked together by a communication data bus.

With a multiple boiler programmable controller such as the merley sequence controller the appropriate number of boilers can be set up to fire and modulate together to accurately respond to variations in demand in the most efficient manner in this way we can increase overall plant efficiency with improved load matching of the entire boiler plant to the building s. The communication data bus passes significant data between the digital control systems in a serial format. Modern microprocessor based controls for multiple boiler systems often perform several functions. Complex boiler control systems may involve multiple digital control systems e g.

For starters they automatically calculate the proper supply water temperature to the system. That control will also rotate the boilers. Select your level of control classic stage multiple heat sources to provide outdoor temperature reset for hydronic heating and domestic hot water generation. Performance use tekmarnet communication to stage multiple heat sources optimize system operation and provide remote monitoring and alerts capability.

A tekmar 275 should do fine. Alternate supply of the multiple boiler sequencer is the ems using modbus or 4 20ma as discussed above or a third party device such as manufactured by tekmar or heat timer. The boiler control 274 is designed to stage multiple boilers using outdoor temperature reset. The utica boilers multiple boiler control mbc operates up to four boilers and resets the heating system water temperature based on outdoor air temperatures.

Utica boilers are piped in primary secondary arrangement and the mbc control automatically selects how many boilers are needed to maintain the required heating load. When connecting the ems input to the rj45 modbus port the multiple boiler sequencer function cannot be done by the control and must be supplied by others. If the demand is for space heating the controller typically determines its target temperature using outdoor reset logic. It can be used in applications ranging from a single zone of baseboard multiple baseboard and fan coil zones to dedicated domestic hot water heating in commercial buildings.

Selecting multiple boilers maximizes your energy savings and provides.