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MADE IN AMERICA
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Visit us at the World Energy Engineering Conference
Orlando, Florida
Sept. 30 - Oct. 2, 2015
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Find it here.
Hoffman Controls Corporation is a manufacturer of Electronic Special Purpose "First in the Industry" products for the HVAC&R (Heating, Ventilation, Air Conditioning & Refrigeration) industry.

With over 50 years of experience and history in the industry, Hoffman Controls has established a proven track record for meeting challenges with the expertise and technology required for the future. Start here for our full product line-up.

If you do not immediately find a solution for your application in our current product offerings,  please contact us to discuss your needs and how we might best serve them.
Coming Soon
Contact us for more information or to discuss becoming a beta site for one of these products

890 Universal Sequencer and Modulator

  • Operate up to 12 stages of fans, compressors, or heaters
  • Continuous output variation possible with one variable unit added to the mix
  • MODBUS RTU communication with building automation systems
  • Up to six sensors for monitoring inputs with combining options
  • Menu system allows easy set point adjustment including hysteresis
  • Secondary set of set points can be used based on an input contact closure
  • 32 character LCD display
  • 12 relay outputs plus modulating output (PWM and 0-10 VDC)
  • Inputs can be temperature, pressure, 0-10 VDC, or contact closures
890 Digital Sequencer

763-ECM EC Motor Speed Control

  • Control the speed of an ECM motor locally or remotely
  • MODBUS RTU communication with building automation systems
  • Closed-loop control mode will maintain motor speed independent of loading
  • LED display of motor rpm
  • PWM and DC outputs plus GO Signal
763-ECM Fan Control

770-PSC PSC Motor Speed Control

  • Control the speed of a PSC or shaded pole motor locally or remotely
  • MODBUS RTU communication with building automation systems
  • Closed-loop control mode will maintain motor speed independent of loading
  • Remote sensing of motor rpm
  • Easy operation with LCD based menu system
  • Motor voltages of 115 to 277 VAC
  • Motor currents up to 10A
770-PSC Fan Speed Control

610 Motor Current and Temperature Protection

  • Protects single phase and 3 phase motors from current draw problems
  • Uses current transformers to digitally sense currents
  • Two temperature sensors can also be used for thermal monitoring
  • MODBUS RTU communication with building automation systems
  • Trip point can be set based on current flow, current imbalance, temperature
  • Current trip timing is based on energy into system after trip set point is reached
  • Menu system allows easy adjustment of parameters and set points
  • 32 character LCD display
  • Selectable number of trips with automatic reset
  • Alarm signal
  • Can read and write all values over MODBUS, including manual reset
610 Overcurrent Protection
Featured Products
  • For walk-in and reach-in coolers and freezers
  • Continuously variable evaporator fan speed automatic control
  • Maximum efficiency, reduced compressor run time, improved product shelf life
  • PWM and DC outputs
  • Multi-Motor Capable
  • Compatible with ICE 59 and ICE 142 ECM motors
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  • For energy efficient ECM condenser fan motors in air-conditioning and refrigeration systems
  • Optimizes fan speed to improve system performance and save energy
  • Sensor or VDC input
  • PWM output
  • Low ambient control
  • Multi-motor capable
  • Compatible with Genteq ECM 2.3/3.0/EON and Evergreen CM motors
880-ECM Head Pressure Controller
  • For PSC or shaded pole single phase, single speed motors
  • Optimizes fan speed to improve system performance and save energy
814/816 Head Pressure Control
  • For three phase induction condenser fan motors
  • Optimizes fan speed to improve system performance and save energy
865-3AA PSC Head Pressure Control
  • For PSC or shaded pole motors
  • Low cost manually adjustable proportional speed control
  • Voltage ranges from 120 to 480 Volts, current up to 15 Amps
706 Manual PSC Speed Control
  • For EC Motors
  • Low cost manually adjustable speed control
  • PWM output to motor
760-ECM Manual Speed Control
  • For EC Motors with PWM input
  • Allows replacement of discrete speed PSC or EC motors with variable speed EC motors
  • Heating and cooling speeds are adjustable
762-ECM 2 Speed Fan Control
  • For EC Motors with PWM input
  • Allows replacement of discrete speed ECM with variable speed ECM
  • All four speeds are adjustable
764-ECM 4 Speed Fan Control
  • For EC Motors
  • Control input is DC voltage or current
  • PWM output to motor
792-ECM(VmA) Fan Speed Control
  • For PSC and shaded pole motors
  • Control input is DC voltage 2-10V
  • Minimum speed adjustment
  • Continuous flow switch
  • 115/208-230V, 10 amps
880-ECM Head Pressure Controller
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