Weather Compensation Module 423e

Two On/Off or modulating boiler controls, weather compensator for four variable temperature systems and DHW control.

The Weather Compensation Module 423e provides outdoor water temperature reset to a hydronic heating system based on the outside air temperature in order to maximise comfort and fuel efficiency. The 423e can operate two on / off boilers or two modulating boilers.

The 423e can override the weather compensated water temperature to provide Domestic Hot Water or Setpoint operations. The 423e can operate four outdoor weather compensated water temperatures, up to three of these water temperatures can be mixing water temperatures. To operate a mixing device, a Mixing Expansion Module must be connected to the 423e for each mixing water temperature.

Features:

• Four tN4 Buses
• Up to One Boiler and Three Mixed Water Temperatures
• Two On-Off or Modulating Boiler outputs
• Equal Run Time Rotation
• Powered Pump Outputs
• DHW Operation
• Optional DHW Sensor
• Setpoint Operation