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.
- Outdoor temperature reset, indoor temperature feedback
- Warm weather shut down, zone synchronization
- DHW post purge, DHW control
- DHW priority (optional), expandable up to 48 zones
- Single on/off or modulating boiler control, variable speed, or
floating action mixing control
- Automatic boiler differential, Exercising
- Boiler protection, powered pump outputs
- System setback (with optional Timer)
- One touch overrides (with optional User Switch)
