Caleffi ZVR103 Z-one Relay for 3 Zone Heating Systems - High Efficiency HVAC Control Valve for Home & Commercial Use

Caleffi ZVR103 - Z-one Relay (three zone) The ZVR103is a multi-zone zone valve and boiler operating control for multiple zone hydronic heating systems. The ZVR103interfaces with low voltage thermostats, or any other low voltage controllers having a switching action. The ZVR103controls up to 3zones. In addition, a system pump, secondary pump and a priority (DHW) pump can also be controlled. LED indicators provide functional status and easy system troubleshooting. The ZVR106is a perfect match with Caleffis Z-one motorized zone valves. Features: Compatible with low voltage 2, 3, or 4 wire thermostats R, W, C and T T COM dual labeling at thermostat terminals Z-oneLink unlimited zone expansion to ZVR and ZSR series Selectable priority with 1 hour time-out feature System and secondary pump status selectable during ZONE 1 demand Circulator will start only after the zone valve end switch is closed Dry contact for ZONE 1 (DHW), capable of switching line voltage Dry contact AUX for signaling a variable speed self regulated pump or other controls Large terminal connections High Capacity 40 VA standard for the 3 zone model expandable to 80 VA Automatic resettable low voltage fuse Controls system pump, secondary pump, and priority pump Front LED Lights 100% Factory tested with 3 year warranty, ETL Listed / CSA Certified Specification: Power supply: 120 VAC, 50/60 Hz Transformer voltage: 24 VAC Maximum transformer load:40 VA Electrical switch rating: 20A Max Combined Electrical switch rating, AUX, ZONE 1, XX: 120 VAC, 2A each Electrical switch rating pumps: 120 VAC, 5A each Resettable Fuse: automatic Qualify for a five year warranty when installed together with Caleffi Z-one zone valves.