Tekmar 402 tN2 House Control 402 - Boiler, DHW & Setpoint, Mixing, Four Zone Valves

Tekmar 402 tN2 House Control 402 - Boiler, DHW & Setpoint, Mixing, Four Zone Valves

The tekmarNet 2 House Control 402 is designed to operate all the mechanical equipment in a residential hydronic heating system, 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 heating 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, 4 on-board zone valves, and can expand up to 24 zones in total for each space heating water temperature.

• DHW priority (optional), setpoint operation
• Exercising, Boiler Protection
• DHW post purge, DHW control
• Outdoor temperature reset, indoor temperature feedback
• Expandable up to 48 zones, single on/off, two stage, or modulating boiler control
• Variable speed, floating action, or proportional mixing control, automatic boiler differentia
• Warm weather shut down, zone synchronization
• Only requires 2 Wires Per Zone, Four 24 V (ac) powered zone outputs
• For use with tekmarNet 2 thermostats only, tN4 expansion terminals