Electric Expansion Valve Controller

About us                                                                                   

      Fenghua Refworld Refrigeration Industry Co., Ltd. is a company specializing in the R&D, manufacture and sale of refrigeration components and equipment. Through several years of hard work and devotion in the field of refrigeration, high technology manufacturing equipment and advanced management concept, we are making a solid base for our future development. Now we have established a wide sales network all over the world. We are always open for your visit and cooperation and hope that we can establish long-term cooperation with your esteem company and will do what we can for the development of the world refrigeration and air conditioning.

About product                                                                         

Description

    EEV has been applied in refrigeration industry for a long time, and it is well known that EEV can improve the performance of the refrigerator, however, the EEV should work with pressure sensor and temperature sensor, gather all kinds of running data and combine the complex logic calculation to drive the opening of the valve, own complex control formats, and need many parts, so the application of the EEV is limited. As professional manufacture of the control system, REFWORLD has been devoted to the development of the advanced control technique of the refrigerator all along. Starting with the core of the control, we developed the MVC EEV controller to make SEV EEV can be convenient as same as the heat expansion valve.MVC EEV controller is the one integrating of data collecting, logic calculation, and current-limit drive. Working with EEV, this controller can adapt to the dynamic changes of the environment load and regulate the opening of the valve automatically, so that the refrigerating system runs in the best state. The precision of superheat controller can up to 0.5°C, which owns the functions of manual operation and LED displaying the opening of the valve, you can set different parameters to meet the need of every kind of refrigerant and model.   

Features

•  Applicable in each series of SEV EEV of GOLDAIR
• LED shows the opening of the valve and alarm signal
• Overheat of cooling and heating can be set separately
• MOP control
• Exhaust temperature control
• Support the flow need of the reversal thaw.
• Function of Pump-collection Applicable in the refrigeration occasion with low temperature (evaporation temperature -40°C)
• Have standby battery, closing the valve completely while power is cut off suddenly.
• Software can download on line, flexible and convenient

Operation specification

A,The input connection of the power of the controller: the power when the controller works normally is 85~260VAC 50/60Hz.

B,The analog input connection: 4-way analog input.

C,Digital signal input connection: Include on and off, cooling/heating mode, and defrosting signal.

D,Drive connection of the expansion valve: Connect the EEV directly.

E, Digital tube: 3 bits, show the opening of the valve (%), temperature, parameters (refer to the specification of the setting parameters)

F,The location for the nameplate of the controller

G,Buttons: four sets of buttons, used for parameters’ setting or inquiry and forced on/off of the valve.

 H,Standby power of the valve: 2 batteries (6F22 (9V)) offer the standby power-18V, you need to open the cover of the    controller to change the batteries.

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