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Teaching suggested applications*

-         Identification of components of a negative refrigerating system

-         Piping and wiring exercises

-         Leak testing of the circuit

-         The refrigerating fluid load (requires tooling and fluid not supplied)

-         Commissioning and setting (expansion valve, pressure switches  ...)

-         Study of the basic concept of a refrigeration system running .

-         The system with industrial rendering

-         The kit comes with the main components attached to the support. The wiring and piping are not realized. (See photo above)

Description

The negative refrigeration building kit allows to train students in the realization of a negative refrigerating system. The system includes all the standard components such as compressor, condenser, expansion valve, evaporator, tanks, pressure switches.

The kit comes complete with the main components attached to the support. Students can work on identifying the components, the shaping of refrigerant piping, the wiring of the cabinet, leak testing, the refrigerant load (requires the tooling not supplied with the bench), commissioning, adjusting and verifying the proper operation.

The kit is intended to be assembled with the cold rooms type CHB100 of DIDATEC brand.

The robust design of this equipment makes it perfectly suited for use in schools.

Its structure in anodized aluminum on wheels gives it great strength as well as great flexibility of integration into your premises. The manufacturing of this equipment meets European machine directive

1.A hermetic compressor
Evaporation temperature -25 ° C
Maximum pressure: 32 bars
Power: 700W
Equipped with two service valves
2. Air condenser
forced convection
3. receiver
Vertical made of steel
Volume: 1.5L
4. Refrigerant recovery valve
5. Filter drier
Solid cartridge drier Ø1 /4 "
Sight glass Ø1 /4 "
6. Solenoid valve
Normally closed
Straight passage Ø1 /4 "
7. Thermostatic expansion valve
Internal pressure equalization with calibrated orifice (-40°C /+ 10°C)
8. Evaporator
Forced convection
Evaporation temperature -25°C
Power: 700W
Electrical defrost
9. A suction line accumulator.
Vertical made of steel
Volume: 1.5L
10. Control and safety system
High pressure gauge -1 à 30bars
Low pressure gauge -1 à 10bars
High pressure switch control
Low pressure switch control
HLP combined safety pressure switch

The electrical cabinet of the system includes:
-an electrical cabinet made of steel with a 230VAC plug to connect the accessories.
-the standard safety elements (main switch, emergency stop button, GFCI, connection to earth and white light)
-a circuit breaker for each element
-the relays for the main components of the system (evaporator, electro valve, compressor, condenser, defrost heater)
-lights for each component
-a refrigeration temperature controller with 2 probes to manage all the components (defrost, ventilation…)

Characteristics of the frame :
-the frame is made of anodized aluminum and screwed profiles
-it is set up on 4 wheels diameter 100mm.
1.

 
Additionnal material supplied
The kit is supplied with the equipment necessary for the realization of piping and electrical wiring:
-30mL annealed tube 1/4 "
-15mL annealed tube 3/8 "
-30mL of insulation tube 1/4 "
-15mL of insulation tube 3/8 "
-100m of cable 3G0.75
-50m of cable 4G0.75
-100m of white wire 0.75mm²
-100m of red wire 0.75mm²
-100m of black wire 0.75mm²
-100m of blue wire 0.75mm²
-100m of black wire 1,5mm²
-100m of blue wire 1,5mm²
-100m of ground wire 0.75mm²
-A batch of refrigeration fittings (nuts ...)
-A batch of electrical accessories (tip ends, collars ...)

The tooling required to achieve is not included in delivery.

• Power supply: 230 Vac – 50 Hz –10A
• Power supply Type: 1 phase(s) + Neutral + Earth.
• Dimensions :  (LxWxH mm): 800 x 800 x 1700
• weight (Kg): 95