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Teaching suggested applications*

-   Identification of components of a positive refrigeration system

-   Commissioning and verification of operation

-   Study of the basic concept of an R134A refrigeration system.

-   Study of the thermodynamic cycle on enthalpy diagram.

-   Study of regulation

-   The system has an industrial rendering

-   The system is delivered assembled, loaded and functional

Description

The positive cold room allows the study of a positive refrigeration system. The system includes all standard components such as compressor, condenser, expansion valve, evaporator, cylinders, pressure switches.

It is delivered complete, assembled and functional. Students will be able to work on the identification of components, commissioning, adjustment and verification of proper functioning. They will also be able to proceed with the recovery of the fluid and the load (requires tools not supplied with the bench).

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

Its anodized aluminum structure on wheels makes it extremely robust as well as great flexibility of integration into your premises. The manufacturing of this equipment meets the European machine directive

The bench is installed on an aluminum profile structure equipped with four directional brake casters.
It has an electrical box with general power disconnector and 30mA differential circuit breaker.

1 - Hermetic compressor
Commercial type
Refrigerant: R 134 a
Cooling capacity: approx. 700 W
- Condensation temperature + 43° C
- Evaporation temperature +0° C
Maximum pressure: 16 bar

2 - Air condenser
Forced convection
In copper tube and aluminum fins
Mounted on the same chassis as the compressor

3 - Liquid tank
Vertical - Steel
1/4"  outlet valve
Capacity: 1.5 L

4 - Refrigerant recovery valve
Straight passage  1/4 "
Mounted on the bottle

5 - Dehydration station
1/4"  solid cartridge dehydrator
1/4"  humidity indicator light

6 - Electromagnetic valve
Normally closed
Straight passage  1/4 "

7 - Thermostatic expansion valve
Internal pressure equalization

8 - Air evaporator
Forced convection
Copper tube and aluminum fins
Electrical power of the
Fridge power: about 585 W at dt 7K

9 - Anti-liquid blow bottle
Steel
Capacity: 1.5L

10 - Control system
High pressure gauge
Low pressure pressure gauge
Temperature controller with room temperature display, operation management (evaporator, compressor), room thermostat

• Power supply: 230Vac – 50 Hz –
• Dimensions: (LxWxH mm): 2000 x 800 x 1800
• weight (Kg): 155