The Taco Priority Protection Plug-In Card is a solid state control that helps prevent
freeze-ups in the event of a priority zone failure. If the priority zone calls for heat
continuously for more than one hour, power is then returned to the space heating
zones, allowing all the zones to function independently. Once the priority zone is
satisfied, the control?s auto-reset is activated. The next time the priority zone calls, it is
again allowed to have priority for up to one hour.
- Control: Solid State Control
- Dimensions: 2" x 1.75"
- Connections: Plugs into any PowerPort Slot on any -EXP
- Power Supply: 24 VAC (Powered by -EXP Control)
- Relays: 2 amp
- Diagnostics: LED Light
- Time Delay: Fixed, 1 Hour