WattNode Module for real-time, energy monitoring in HVAC equipment
Continental Control Systems has developed a small, low-cost energy meter module which OEMs can design into their equipment for energy consumption monitoring. This new “meter on a board” concept is designed for high volume production, but can be customized with the specific features required by OEM. The WattNode Module is the ideal solution for energy monitoring in HVAC/R equipment including RTU, PTAC, and CRAC units, VRF heat pumps, chillers, fans, compressors, and refrigeration racks.
The board provides all the multi-measurement functionality of traditional submeters including positive and negative kWh registers, kW demand, peak demand, volts, amps, kVARs, and power factor for each individual phase as well as aggregated values.
The factory calibrated, UL Recognized component is easy to incorporate into the OEM’s equipment and was awarded an honorable mention in this year’s AHR 2016 Innovation Competition. The board requires a 4 to 30 volt AC or DC power source and an RS-485 port (BACnet or Modbus). The line voltage inputs accommodate any single or three phase electric service from 120 to 600 volts. Current transformers are available in many different styles and ranges including board mounted solid-core and split-core with wire leads.
Interface choices include PCB connectors, screw terminals, or pigtail wire leads. Board dimensions can be adjusted and various mounting options, such as standoffs or DIN rail are available.
For harsh environmental applications, a 70 degree ambient temperature rating and conformal coating options are available.