Company: Grundfos Pumps Corp.
Description: This series of zone controls manages circulators and boilers in residential hydronic heating systems. The non-networked devices control up to six heating zones and can be coupled together in various configurations to accommodate any application. Boiler pumps, domestic hot water pumps, system pumps, and pump priority are all controlled from the UPZC control. The zone-relay control connects to standard thermostats using either two or three wires. The optional third wire provides 24 vac to thermostats that require external power. The UPZC operates in a cold-start configuration with a call for heat from a thermostat. The module’s relay is energized which, in turn, switches 120 vac to activate the circulator and provides a call-for-heat signal to the boiler. Side-mounted terminals provide simple access and wiring while the forward-facing LED display on the front panel shows system status and zone function.
Contact: 630-236-6900; us.grundfos.com