Taco HAFC201-4 Hydro Air Fan Control w/ Time Delays, replacement for HAFC201-2

The Hydro Air Fan Control is an interface between the thermostat and air handler. It also has an isolated endswitch to start the boiler andor pump. When the thermostat calls for heat, the Fan Control energizes the end switchrelay and allows the fan to operate at low speed when the water is above the optional aquastat setting. Whenthe thermostat calls for cooling, the Fan Control energizes the condenser and operates on high speed. The Fan
Control also includes three built-in fantime delay options, two selectable pump exercise modes, a secondary aquastat connection for freeze protection and the ability to switch a pump and or boiler.Features
Automatic Multi-Speed Switching
Prevents False Calls for Fan Operation
Simplified Wiring
Contractor-Friendly PC-Board Layout
Built in Time Delays
Pump Exercise Timer100% Factory Tested
Specifications:Application: Fan Control
Voltage: 24v
Pump Rating: 16 HP
Switch Action: DPDT
Features: Time Delays