Evaporator Control with Eletronic Expansion Valve Teaching Equipment Refrigeration Training Equipment

Evaporator Control with Eletronic Expansion Valve Teaching Equipment Refrigeration Training Equipment

SR2030 Evaporator Control with Eletronic Expansion Valve Teaching Equipment Refrigeration Training Equipment for college, vocational training center, university. 

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SR2030 Evaporator Control with Eletronic Expansion Valve Teaching Equipment Refrigeration Training Equipment

Learning Objectives / Experiments

– modern refrigeration controller with electronic expansion valve

– functional principle of the controller

* thermostat function

* daytime and night-time operation

* operation with open and closed freezer

* defrost functions

* safety functions

* alarm functions

* monitoring of the components

– controller programming

– fault finding

Specification

[1] experimental unit from the practical series for the training of mechatronics engineers for refrigeration

[2] investigation and programming of an industrial refrigeration controller in the example of a freezer

[3] simulation of the freezer by way of software

[4] schematic on the front panel with lamps to indicate the operating states of the actuators

[5] programming of the refrigeration controller using a programming device

[6] simulated freezer with compressor, electronic expansion valve, fan, electric defrost heater for the evaporator, frame heating, pressure and temperature sensors

[7] real freezer components for demonstration purposes: 1 electronic expansion valve, 1 pressure sensor, 2 temperature sensor

[8] software for simulation via USB under Windows Vista or Windows 7

Technical Data

Functions of the refrigeration controller

– thermostat function

– daytime/night-time operation

– defrost functions

– messages and alarms

– fan operation

– energy saving functions

– safety functions

Simulated sensors

– air temperature upstream of the evaporator

– air temperature downstream of the evaporator

– evaporator surface temperature

– refrigerant temperature upstream of the

compressor

– refrigerant pressure upstream of the compressor

Functions of the simulation software

– outer temperature input

– opening/closing the door

– selection of refrigerant

– pressure and temperature time graphs

Dimensions and Weight

LxWxH: 660x350x570mm

Weight: approx. 20kg

Required for Operation

230V, 50/60Hz, 1 phase or 120V, 60Hz/CSA, 1 phase

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