MEX VS
Chillers and inverter air / water heat pumps with axial fans
19
It is a good rule to carry out periodic checks in order to verify the proper operation of the unit.
OPERATION
1 month 4 month 6 month
Filling the water circuit.
x
Presence of bubbles in the water circuit.
x
Check out that safety and control devices work correctly.
x
Check out possible oil leakage from compressor.
x
Check out possible water leakages from the hydraulic circuit.
x
Check out the proper working of the flow switches.
x
Check out that the crankcase electric heaters are properly supplied and functioning.
x
Clean the metallic filters of the hydraulic circuit.
x
Clean the finned coil by means of compressed.
x
Check out that all the terminals on the electric board as well as on the terminals of the
compressor are properly fixed.
x
Tightening of water connections.
x
Check out the tightening and the balancing of the fan blades.
x
Correct voltage.
x
Correct absorption.
x
Check the refrigerant charge.
x
Check the operating pressure, and superheat and subcooling.
x
Check of the efficiency of circulation pump.
x
Check the expansion tank.
x
If the unit should be out of service for a long period, discharge water from the piping and from
heat exchanger. This operation is necessary if, during seasonal stoppages, ambient
temperature is expected to go down below the freezing point of the employed fluid.
x
10.1
ENVIRONMENTAL PROTECTION
According to the norms dealing with the use of depleting stratospheric ozone substances, it is forbidden to release refrigerants
fluids in the atmosphere. They have to be collected and delivered to the seller or to proper gathering points at the end of their
operating life. Refrigerant R410A is mentioned among controlled substances and for this reason it has to be subjected to the
mentioned norms.
A particular care is recommended during service operations in order to reduce as much as possible any
refrigerant loss.
11
APPLIANCE RECYCLING
Once the unit is arrived at the end of its life cycle and needs to be removed or replaced, the following operations are
recommended:
• the refrigerant has to be recovered by trained people and sent to proper collecting centre;
• compressors’ lubricating oil has to be collected and sent to proper collecting centre;
• the frame and the various components, if not serviceable any longer, have to be dismantled and divided according to their
nature, particularly copper and aluminium, which are present in conspicuous quantity in the unit. These operations allow easy
material recover and recycling process, thus reducing the environmental impact.
The user is responsable of the proper disposal of this product, according to national regulations in the country of destination of
the appliance. For more information you should contact the installation company or local competent authority.
An incorrect decommissioning of the appliance may create serious environmental damage and endanger people’s
safety. Therefore, it’s recommended that the unit shall be disposed only by authorized persons and technical training
who have followed training courses recognized by the competent authorities.
It is required to follow the same precautions described in the previous paragraphs.
Pay special attention during the disposal operation of the refrigerant gas.
Содержание MEX VS 112 RH
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