Enviro-tec PC-01-0134 Fan Relay Board with 30VA Transformer FRBii

The Enviro-tec PC-01-0134 is a Fan Relay Board 2 (FRBii) designed for commercial HVAC fan coil unit applications. This control board manages fan motor operation and integrates seamlessly with thermostats, controllers, and other peripheral devices to ensure efficient heating and cooling performance.

Key Features:

• Integrated 30VA multi-tap transformer steps down AC voltage to 24VAC for control circuits
• Accepts multiple input voltages: 120V, 208V, 240V, and 277V single-phase power
• Controls three-speed fan motor operation with intelligent speed selection logic
• Built-in fuse protection on secondary side prevents transformer damage from wiring errors
• HEAT output terminal connects to electric heat contactors or relays with fan interlock safety
• DAMP output terminal for motorized damper actuator control
• Screw terminal block and 18-pin connector for easy field wiring
• Factory-provided harnesses for faster installation and simplified troubleshooting

This genuine OEM replacement part is engineered specifically for Enviro-tec fan coil units including the PK-FCU030 series. The board allows connection of thermostats, electric heat relays, water valve actuators, condensate drain pan float switches, and air dampers. All control signals operate at a safe 24VAC nominal voltage, properly insulated from line voltage components.