BOCK/net/BACnet/Remote Access for OT125-500
For use with BACnet or Bock remote access (BOCKnet). If multiple water heaters are installed at a single location, order only one unit with this kit (20252), order all other units with OptiTHERM Modbus kit (20250). Only Available pre-installed on new OptiTHERM orders. Not available for field conversion.