Frigitek Technical Data

The FRIGITEK® controller works in conjunction with 2 speed EC (electronically commutated) motors to maximize their efficiency and nearly double the energy savings provided by EC motors alone. 

The Frigitek ECMotor Controller functions by sensing the operational status of the cooling system, and controls the speed of the EC evaporator fans.  When the thermostat is satisfied and the compressor cycles off, the Frigitek controller will sense the compressor off cycle and will switch the motors to the slower speed.

Below is an example of the type of savings comparing a 3 fan motor evaporator unit with standard shaded pole motors to a unit fitted with 3 - 2 speed EC motors and a Frigitek controller.

 Fan Motor Efficiency Rebates

            Before Frigitek                                            4,370. KWH/yr

            After Frigitek                                                   649. KWH/yr

            Total Savings                                              3711.  KWH/yr

                               An 83% reduction in energy use

It is a fact that all of the electrical power which is used by the fan motors ends up as heat inside the refrigerated space. By operating the fans at a low speed when no cooling is called for, and at high speed only when the system is actively cooling the refrigerator, much less heat is introduced into the refrigerator. Although this results in an additional saving in evaporator fan motor energy consumption, the reduction in fan motor heat generated causes a significant reduction in refrigeration operation, saving enough energy at the compressor to almost double the savings provided by the EC motors alone.

                        Compressor Motor Efficiency rebates in an average size unit

                                    kWh reduction after Frigitek                  1728. KWH/y

                             Approximate 20% reduction in energy used by the compressor

The FRIGITEK ECMotor Controller unit is normally mounted inside the wiring end of the evaporator. Three cables connect the Controller into the evaporator system. One cable is wired to the power connections, one to the Differential Sensors and one to the Ice Sensor.

The Frigitek ECMotor Controller is designed to be easily installed when upgrading to EC motors. Installation typically takes about 45 minutes (as does each EC Motor), and can be done by any competent electrician or refrigeration technician. In addition to its energy saving qualities, the Frigitek® ECMotor Controller also provides some intrinsic advantages. The low speed of the fans results in lower evaporation from sensitive stored foods, and the lower noise levels contribute to worker efficiency, and a more pleasant workspace.

Controller Unit

         Voltage:      120 Vac or 208-240 Vac set at factory

         Current:    .15Amp

         Motor Control current: .15mA/motor

         Size:            5.5x 3.25 x 2.0

         Weight:       10.8 Oz

         Mounting:     Inside evaporator case

         Connections:   Plug-in connections for Power, TDS Sensor and Ice Sensor -  Factory-wired cables are provided for these connections

FOR ADDITIONAL INFORMATION CONTACT TRIDON INDUSTRIES AT 800-760-8044