Description
The Honeywell W7212 is a solid-state economizer logic module designed to modulate outdoor and return-air dampers for efficient free cooling in rooftop units and air handling systems. Compatible with CO₂ Demand Control Ventilation (DCV) sensors, Enthalpy sensors, and Dry Bulb temperature sensors, it delivers integrated ventilation and cooling control.
Features:
- Operates from commercial thermostat and DCV sensor to provide a totally integrated control system.
- Mounts on M7215 Motor or ductwork.
- The W7212 is used with Honeywell Series 72 actuators.
- Combines minimum and DCV maximum damper position potentiometers with compressor staging relay.
- Functions with solid state enthalpy or dry bulb changeover control.
- Terminals included for connecting optional S963B1128 Remote Potentiometer for remote minimum damper position control.
- LED indicates when free cooling is available.
- LED indicates when module is in DCV mode.
- LED indicates when exhaust fan contact is closed.
- W7212C with additional “E” enthalpy curve.
