CSA cUS, Meets Class B: ICES and FCC Part 15

• Only requires two-wire per zone, four 24 VAC powered zone outputs For use with tekmarNet® 2 thermostats only, tN4 expansion terminals Outdoor temperature reset, indoor temperature feedback Warm weather shut down, zone synchronization DHW post purge, DHW control DHW priority (optional), setpoint operation Expandable up to 48 zones, single on/off, two-stage or modulating boiler control Variable speed, floating action or proportional mixing control, automatic boiler differential Exercising, boiler protection

The tekmarNet® two 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, set point loads, four on-board zone valves and can expand up to 24 zones in total for each space heating water temperature.