PENN COMMERCIAL REFRIGERATION
CONDENSER FAN SPEED CONTROLLERS
3-PHASE CONDENSER FAN SPEED CONTROL
VFD68
VARIABLE FREQUENCY DRIVES
The VFD68 Variable Frequency Drive provides three-phase motor speed control in a variety of HVAC / R applications . The VFD68 drive is designed primarily for condenser fan speed control on HVAC and refrigeration condensing units , but can also be set up to control a variety of pumps , blowers and fans .
The VFD68 drive accepts an input signal from P499 electronic pressure transducer , or other devices that provide a 0 to 5 VDC , 0 to 10 VDC , or 4 to 20 mA signal . The application-specific design of the VFD68 drive provides a simple interface , which makes the drive easy to understand and operate . You can quickly and easily reconfigure the VFD68 drive to control variable speed pumps in cooling and heating applications , or to control variable speed supply fans in VAV applications .
The VFD68 drive is an RS485 , RTU-compliant ModBus ® slave device and can be integrated into a ModBus network .
FEATURES
• Selectable input types allows use with 0 to 5 VDC ( ratiometric ), 0 to 10 VDC , or 4 to 20 mA input signals from transducers , sensors , and controllers .
• High input signal selection of two similar inputs provides fan speed control of dual circuit condensing units , based on the highest pressure circuit .
• Compact design provides for easy and flexible installation .
• Three-phase 400V 50Hz models can control a wide variety of three-phase motors ranging up to 3hp .
• Simple and advanced end-user settings provide quick and simple application setup and operation , as well as advanced setup parameters for custom applications .
APPLICATIONS
The VFD68 drive accepts input signals from a variety of pressure transducers , temperature sensors , and low-voltage controllers to provide continuous response to changing condenser load conditions .
The VFD68 drive allows the system to :
■ Maintain optimum condenser head pressure
■ Operate in low ambient temperature conditions down to -40 ° C
■ Reduce short-cycling , which occurs when using
■ Use on / off fan controls
■ Maintain a more stable evaporator temperature
■ Operate more efficiently , reducing electricity cost . The VFD68 drive can also :
■ Help optimize compressor operation , reduce wear , and extend compressor life by stabilizing the condenser head pressures
■ Reduce motor repair and replacement costs by eliminating the condenser fan short-cycling
■ Extend refrigerated product life and provide more consistent comfort cooling by stabilizing evaporator temperatures
87 - REFRIGERATION
European Products Catalogue 2021