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HFF 134


Teaching suggested applications*

-          Identification of the components of an installation operating with R134a

-          Commissioning and settings (temperature controller-expansion valve) of a refrigerating installation

-          Standard operation procedure to recover and load the refrigerant (requires additional tooling OUT134)

-          Setting of the control components (pressure control valve, pressure switch LP, pressure switch HLP)

-          Maintenance operations on a refrigeration installation, replacement of the dehydrator, replacement of a pipe on the low pressure side (requires additional tooling OUT134)

-          Draw of the refrigeration cycle on enthalpy diagram to check the operation of the installation


The HFF134 trainer is designed to train the learners in the transfer of refrigerants. The installation is based on a refrigerating cycle operating with R134a. It comprises the main components of a positive installation, a compressor, a condenser, a receiver, a solenoid control valve, an expansion valve, an evaporator and a suction line accumulator. Service valves and fittings Schrader type allow the learners to connect a manifold for the load operations, recovery operation and verification operation.

The cold chamber is simulated by a cabinet. The cabinet door is equipped with an enthalpy diagram R134a with erasable surface (format A3). A thermostatic control box will control the operation of the solenoid valve (pump down control). Two switches located on the box are used to stop the operation of the solenoid valve and of the condenser (this facilitates adjustment of the pressure switches).

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 a great flexibility of integration into your premises. In the lower part, the bench comprises a storage area equipped with two doors with key locking (storage of tooling).

The manufacturing of this equipment meets European machine directive

This equipment can be used alone or with other compatible equipment in our range (see last section of this document).

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*Teaching suggested applications


ZA du Parc
42490 Fraisses

Phone number/Fax

+33 (0)4 77 10 10 10
+33 (0)4 77 61 56 49


Please, give us your technical and teaching requirements and we will manufacture for you your new system.


Because we have the experience, and choose the best suppliers we will assure features and relevance.

The essential of DIDATEC :

Standard range distribution - Research department / Customization

 Units of : Demonstration, Teaching and lab manuals, Research and development.

Technical and lab manuals - Advice and layout plan studies 

Warehouse and trials : 1600 m², Research department : 150 m², Spare parts : 300 m².

Because all systems are being manufactured at our plant, accordind to your specific needs and budgets we will assure quality and long-lived. 

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