OnTrac® Multiple Boiler Control - for Large Systems, Hybrid Systems or BA
Full-color, touch-screen programmable multiple boiler control.Communicates over 485 serial connection via ModBus to individual boilers' TempTrac controls.
Stand-alone operating modes: static loop setpoint, outdoor reset and setback.
BAS communication includes remote analog reset and remote network control via ModBus TCP/IP or RTU protocol with option for BacNet MSTP or IP, LonWorks, or Johnson Controls N2 protocols.
Controls up to 20 boilers in traditional 'all non-condensing' or 'all condensing' boiler systems.
Special hybrid boiler system capability controls up to 12 condensing boilers and 8 non-condensing boilers as unique sets.
Capabilities brochure (pdf), standard and optional equipment list (pdf) submittal (pdf), specification (word), installation/wiring manual (pdf) Programming manual (pdf)
TempTrac® On-Board Boiler Operator
Electronic operator with LED readouts of boiler water temperature.Push-button programmable.
Operating modes: static loop setpoint, outdoor reset, setback and remote network control via 485 serial connection with ModBus RTUprotocol.
Modulating, stage-fired and on/off burner control.
Fully programmable setpoints and differentials for staging and modulation.
Fully customizable outdoor reset curves.
Basic operating manual (pdf) Advanced operating manual (pdf) ModBus register list (pdf)
Modbus RTU manual (pdf)
Protocol Gateways for OnTrac® and TempTrac® controls
Modbus communication protocol is converted to either BACnet MSTP, BACnet IP. LonWorks or Johnson Controls N2 through a gateway. Custom gateway is factory programmed with the register maps of TempTrac and OnTrac devices. BacNet MSTP and IP setup manual for TempTrac and OnTrac controls (pdf)