Taco® ZVC404-4 ZVC Zone Valve Control, 4 Zones, 120 VAC, 1/6 hp Power Rating, DPDT Contact, Domestic

TAZVC404 MFG #: ZVC404-4

Features

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 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
External Indicator Lights
Switchable Priority
Simplified Wiring
Works with 2, 3, or 4-Wire Zone Valves
Compact Design
Fuse Protected
100% Factory Tested
Two Isolated End Switches
Extra Set of Dry Contacts
Contractor friendly PC Board Layout
Universal Thermostat Compatibility
Sturdy Screw Connections