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- Taco® Zone Valve Control, Series: ZVC, 4 Zones, 120 VAC, 1/6 hp, DPDT, For Use With: System Pump, 7 in Height, 10-3/4 in Width, 2-3/4 in Depth, Domestic
- Operation/external diagnostics - when any thermostat calls for heat, the appropriate zone valve is energized and the yellow light goes on
- When the zone valve is fully open, the red light goes on and energizes the end switch relay
- The green light should always be on, indicating that power is connected
- Priority operation - when zone 4 is switched to the priority setting and is actuated, all other zones will stop operation until zone 4 is satisfied
- When zone 4 is not switched to priority, all zones will operate independently
- When a circulator is used on the priority zone instead of a zone valve, jumper 3 and 4 of the priority zone
- Priority protection operation - when the priority zone calls continuously for more than one hour, power is returned to all the other zones, allowing each zone to function independently
- Once the priority zone is satisfied, the control's auto-reset is activated and the priority zone is again allowed to have priority for up to one hour starting from when it calls next
- Contact FormDPDTDomestic / ImportDomesticNumber of Zones4Voltage Rating120 VACDepth2-3/4 inHeight7 inManufacturerTACOManufacturer #ZVC404-4Motor HP1/16 HPSeriesZVCSuitable For Use WithSystem PumpWidth10-3/4 in