Taco ZVC404-4 Zone Valve Control, 4 Zones, 120 VAC, 1/6 hp, DPDT, Domestic
TACO ZVC404-2(4) 4 ZONE VALVE CONTROL WITH PRIORITY
Taco ZVC404-4 Zone Valve Control, 4 Zones, 120 VAC, 1/6 hp, DPDT, Domestic
- Depth: 2-3/4 in
- Height: 7 in
- Series: ZVC
- Suitable For Use With: System Pump
- Width: 10-3/4 in
- Number of Zones: 4
- Voltage Rating: 120
- Power Rating: 1/6 hp
- Contact Form: DPDT
- Domestic/Import: Domestic
- 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 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 |