Tekmar 423 Universal Reset Module, Two Boiler, Four tN4, DHW & Setpoint
- Brand: Tekmar
- Model: 423
Product highlights:
- Expandable up to 96 zones
- Outdoor Temperature Reset
- Warm Weather Shut Down
- Availability: In Stock. Ships within 2-3 days.
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Universal Reset Module, Two Boiler, Four tN4, DHW & Setpoint - Tekmar 423
The Universal Reset Module 423 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 four temperature systems comprised of multiple fan coils, baseboard, mixed radiant floor zones, and two modulating/condensing boilers. This control regulates up to four space heating water temperatures through Outdoor Reset and Indoor Temperature Feedback. It is capable of controlling two on/off or modulating boilers, Domestic Hot Water, setpoint loads, and can connect up to 24 zones for each space heating water temperature (96 in total).
Energy Saving Features:
- Outdoor Temperature Reset
- Indoor Temperature Feedback up to
- 96 zones
- Warm Weather Shut Down
- Zone Synchronization
- DHW Post Purge
Additional Features:
- Expandable up to 96 zones
- Two on/off or two modulating boiler control
- Controls up to 4 water temperatures (with use of up to 3 mix expansion modules)
- DHW control
- DHW Priority
- Automatic Boiler Differential
- Equipment Exercising
- Boiler Protection
- Powered pump outputs
- System Setback (with optional Timer)
- One touch overrides (with optional UserSwitch)
Application:
Boiler Reset
Depth (Inch):
9/16
Width (Inch):
5-3/8
Height (Inch):
3-5/8
Power Method:
From Interconnected Zone Manager
User Interface:
Push Button
Temperature Range (°F):
-76°-266°F
Voltage (V):
260v








