OpenTherm

Versatronik® OpenTherm

521 - OT/LON Gateway

522 - OT/Modbus Gateway

525 - OT/BACnet-IP Gateway

This communication gateway is situated between an Opentherm Enabled room temperature controller boiler.
It relays the information flow between the two and can convert this information to several different protocols.

The OT/BACnet IP (525), OT/Modbus (522) and OT/LONWORKS® (521) models have the ability to communicate directly with the boiler.
This makes it possible to have a building management system take control of your OT enabled boilers. In this configuration, a thermostat is not required.

Ordering information

Versatronik 521 OT,LONWorks - P/N 704052

Metal enclosure, 120V power supply

Versatronik 521D OT,LONWorks - P/N 704072

Plastic DIN-rail enclosure, 24VAC power supply

Versatronik 522 OT,Modbus - P/N 704054

Metal enclosure, 120V power supply

Versatronik 522D OT,Modbus - P/N 704077

Plastic DIN-rail enclosure, 24VAC power supply

Versatronik 525 OT,BACnet/IP - P/N 704051

Metal enclosure, 120V power supply

Versatronik 525D OT,BACnet/IP - P/N 704073

Plastic DIN-rail enclosure, 24VAC power supply


Versatronik Price Lists

Please e-mail (sales@kwe-tech.com,) or call us at (519) 747-5042 for pricing.

Canadian Price List (July 2011)
U.S.A. Price List (July 2011)



Gateway Diagram

Overview Specifications Documentation

Datapoints:

Applies for LONWorks as well as BACnet IP versions

  • Boiler Setpoint (Writable)
  • DHW Setpoint (Writable)
  • Boiler Water Temperature
  • Maximum Modulation Level
  • Current Modulation Level
  • Room Temperature
  • Room Setpoint Temperature
  • Outside Temperature
  • Return Water Temperature
  • Flue Gas Temperature
  • Boiler Heat Exchanger Temperature
  • DHW Upper- and Lower-bound Setpoint Limits
  • Boiler Fan Speed
  • Water Pressure
  • OEM Fault
  • OEM Diagnostic Code
  • Boiler Faults (service reqd, lockout, gas/flame, air pressure, water over-temp)
  • Flame Status
  • °C or °F Selectable