Tecumseh CAJ Serie Instrucciones De Instalación página 7

The compressor housing must not be subjected to temperatures below -35°C; the materials used cannot guarantee sufficient
mechanical characteristics.
5.2. Expansion element
Tecumseh recommends the use of thermostatic rather than capillary expansion elements for negative applications.
5.3. Installation with a view to commissioning
Tecumseh cannot be held liable if installation and maintenance are not carried out in accordance with the instructions and
information provided in this document.
The directives in force in the country in which the compressor is installed and the specific rules and regulations for refrigerant and
electrical connections must be observed and complied with.
5.4. Location of the compressor and definition of the refrigerant load
5.4.1. Definition of the refrigerant load
The refrigerant load level must not exceed the quantity which can be stored on the high-pressure side. If migration into the
compressor during shutdown times is likely, or if the load exceeds 1.5 kg, Tecumseh recommends the use of a crankcase heater
and/or a non-return valve on the discharge line.
The return of liquid during transitory periods will be prevented by an anti-hammer reservoir.
The maximum load level of inflammable fluids is defined in Annex C of EN 378-1 by the volume at which the refrigerant system is
operated, it location and its usage type (non-exhaustive).
5.4.2. Location of electrical components which are an ignition source in the event of the use of inflammable fluids A2L, A2, or A3
These components must be installed in a zone which is not potentially inflammable. Tecumseh recommends that they are installed
at height and in a ventilated area.
5.4.3. Location of the compressor
The compressor must not prevent or interfere with the movement of persons or the opening of doors or shutters.
The base onto which the compressor will be installed must be sufficiently resistant (plinth, brackets, wall, etc.). Check that the
compressor level is horizontal and that it is equipped with its silent blocks.
Ensure that the circulation of air around the electrical components is not blocked (if inflammable fluids are used), which is also
required to cool the compressor.
5.5. Soldering, refrigerant connections
As a reminder, soldering may only be carried out on installations which do not contain a refrigerant load.
To ensure that the installation is functioning correctly, we advise that you:
- Perform soldering with dry nitrogen and keep all naked flames away from the electrical equipment
- Insulate the suction line as far as the compressor intake, to prevent condensation.
Cut and shape the tubes carefully in order to prevent the ingress of dust and metallic particles inside the system. Never use a saw.
Use a special bending tool which is adapted to the tube diameter in order to avoid major restrictions.
Tecumseh recommends soldered connections rather than tube expander-type screwed connections to limit the probability of leaks
over time. Screwed connections on a flat surface plane using a seal or gasket are acceptable.
Do not use screwed connections for inflammable fluids.
6