Electronic Bypass

Electronic Bypass

Economical and Efficient Fan and Pump Control

Control Techniques’ packaged products feature Affinity, H300 or Commander HSK VFDs. These FPCs (Fan and Pump Controller) are easy to specify. Fire Alarm modes and Fireman's Override are built in. Damper control and automatic transfer to bypass on VFD fault provide the flexibility to meet the most demanding installations without adding options.

These FPCs are highly reliable Fan and Pump Control packages that feature a three-contactor electronic bypass control and an Affinity, H300 or Commander HSK VFD. This easy-to-use HVAC control has a graphical status display, dedicated alarm display, and Hand/Off/Automatic controls.

Features Options Downloads
  • 3-contactor electronic bypass
  • Digital AC drive featuring dynamic and quadratic motor flux V/Hz mode (default), open loop vector mode, or rotor flux control* (Affinity/H300 only) 
  • Speed reference, 0-10VDC, 0-20mA, 4-20mA 
  • Linear and S-type accel and decel ramps 
  • Whisper-quiet switching frequencies to 18kHz 
  • 1–30hp (208V), 1–40hp (230V), 1–200hp (460V) 
  • RS485 port for Modbus RTU, BACNet*, and Metasys N2* communications 
  • Bright VFD keypad 
  • Built-In EMC/RFI filter 
  • Complimentary PC software tools

 *Affinity/H300-only Features

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