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Tekmar 422 Universal Reset Module - Two tN4, Mixing, Boiler, DHW & Setpoint

$ 658.80

The Universal Reset Module 422 is designed to operate all of the mechanical equipment in a hydronic heating system, except for zones, coordinating their operation through network communication. It can be used in applications ranging from a single zone of baseboard with an on/off boiler to multiple fan coils, mixed radiant floor zones, and a modulating/condensing boiler. This control regulates up to two heating water temperatures through Outdoor Temperature Reset and Indoor Temperature Feedback. It is capable of controlling a single on/off, two stage, or modulating boiler, a mixing device, Domestic Hot Water, setpoint loads, and can expand up to 24 zones in total for each heating water temperature.

Features
• Automatic Boiler Differential
• Boiler Protection
• DHW Post Purge
• DHW Priority (optional)
• DHW control
• Exercising
• Expandable up to 48 zones
• Indoor Temperature Feedback
• One touch overrides (with optional User Switch)
• Outdoor Temperature Reset
• Powered pump outputs
• Single on/off, or modulating boiler control
• System Setback (with optional Timer)
• Variable Speed, or Floating action mixing control
• Warm Weather Shut Down
• Zone Synchronization

Click to View Submittal Sheet
Click to View Installation Manual
Click to View Wiring Brochure

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