• 2-Zone AR861-2II or 3-Zone AR861-3II
  • Ice Cube Technology
  • Plug-in Replacement Relays
  • Switchable Priority
  • Perfect for Indirect Water Heaters or Priority Zones
  • Auto-Reset Electronic Fuse Protection – Eliminates Nuisance Service Calls
  • 15VA Transformer/Full 1/3HP Realy Load Rating
  • Robust Components Provide Years of Trouble-free Service

(See Installation, Operation and Maintenance Manual for complete instructions)