Teaching equipment : Refrigeration kit

 

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Refrigeration kit

DESCRIPTION

This refrigeration kit consists of all the parts required to design and construct a positive cold chamber operated by a sealed forrm compressor.

Designed and manufactured to industrial standards.

Use of refrigerant R 134 as required by new European standards.

Teaching equipment : Refrigeration kit - CRD 300

TECHNICAL SPECIFICATIONS
 

The refrigeration kit is made up of the following components :
Electric power of the fan engine : 30 W
Refrigerating power : 325 W /
t 10°C
• A sealed compressor
Commercial type
Electric power 1/8 CV
Refrigerating power 445 W
Condensation temperature : +50°C
Evaporation temperature : +7.2°C
• A air forced ventilation condenser
Copper tube and aluminium blade
Electric power of the fan engine 33 W
• A liquid tank
Vertical type, steel, capacity 0.9 litre
• Thermostatic expansion valve
Pressure internal equalization

 

• A dehydrator
Ό” solid shape
• A cold chamber with evaporator
Chamber volume : 90 litres
Forced convection evaporator
Copper tube and aluminium blades
• Three state indicators of the fluid with damp indicator
• A low pressure manometer -1…..+10 relative bar
• A high pressure manometer -1…..+30 relative bar
• A high and low pressure combined pressure switch
• An electro-valve for the pump down regulation
• A schrader micro valve
• A safety valve
• An atmosphere thermostat
• An electric box with differential protection and buttons
• A block of connections, lengths of copper tubes, capillary
• A perforated plate for the shaping of the elements
• A handled contact probe thermometer

PEDAGOGIC APPLICATIONS

 

• The student receives a plate on which different components of a positive cold chamber refrigeration unit are mounted.
• The student designs a refrigeration unit using the components provided.
• The various components are mounted in positions to comply with the design.
• The components are connected using copper and brass tubes. This will involve bending, brazing, expanding...
• Research of escape, air draught
• A schematic for wiring the system is designed and then implemented
• The unit is filled with refrigerant.
• The unit is regulated while it is running.
• An enthalpic diagram is constructed for the operating unit.

UTILITIES
• Tools of refrigeration engineer
• Tools of bending, expanding of tubes
• Brazing set and silver rod
• Nitrogen bottle + mano expansion valve
• Escape indicator

• Vacuum pump + manifold
• Charge cylinder + R 134 a bottle (0,7 kg)
• Tools of electrician and consumable

(wires, nozzles…)

VOLUME
(Mounted unit)
Length : 650 mm
Width : 560 mm
Height : 800 mm
Weight : 40 kg


SHIPPING SPECIFICATIONS
Packing sizes
Length : 650 mm
Width : 850 mm
Height : 700 mm
Weight : 80 kg

 

 

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Refrigeration kit


Didatec Technologie - ZA du Parc 42490 Fraisses -  France -   Tel : 33 (0)4 77 10 10 10 -  Fax : 33 (0)4 77 61 56 49   
E-Mail : didatec.technologie@wanadoo.fr