This item is an Airboss Panel (8 Zones) manufactured by Arzel Zoning.
The AirBoss zone control is perfect for larger residences or light commercial applications and can control up to eight zones. It has the flexibility to control single- or multi-stage equipment, including heat pumps. Includes master zone control for setback in unoccupied zones from zone 1 programmable thermostat. On-board second stage delay timers eliminate the need for two-stage thermostats. Equipped with leaving air temperature (LAT) sensor. Unlimited Smart Zones can be added.