CIAT EREBA ACCESS 017 T Manuel D'instructions page 14

EREBA ACCESS T/HT units use a R-410A refrigerant charge. For
your information, we are reproducing here some extracts from the
official publication dealing with the design, installation, operation
and maintenance of air conditioning and refrigeration systems and
the training of people involved in these activities, agreed by the air
conditioning and refrigeration industry.
Refrigerant guidelines
Refrigeration installations must be inspected and maintained regularly
and rigorously by specialists. Their activities must be overseen and
checked by properly trained people.
To minimise discharge to the atmosphere, refrigerants and lubricating
oil must be transferred using methods which reduce leaks and losses
to a minimum.
If an oil draining or recovery operation becomes necessary, the fluid
transfer must be made using mobile containers.
• Leaks must be repaired immediately.
• Service valves fitted to the flow and return lines permit charge transfer
to a suitably arranged external container.
• It is indispensable to use a dedicated transfer station.
• Compressor lubricating oil contains refrigerant. Any oil drained from
a system during maintenance must therefore be handled and stored
accordingly.
• Refrigerant under pressure must never be discharged to the
atmosphere.
Recharging liquid refrigerant
R-410A refrigerant operates at 50%-70% higher pressures than R-22.
Be sure that servicing equipment and replacement components are
designed to operate with R-410A.
The cylinders that contain R-410A are pink.
The cylinders that contain R-410A are provided with a dip tube that
allows fluid to escape from the cylinder both when in upright position
and when turned upside down.
Unit R-410A should be charged with liquid refrigerant. Apply a common
flow regulator available on the market to the hose pipe to vaporize the
liquid refrigerant before it enters the unit.
R-410A, like other HFCs, is only compatible with the oils selected by the
manufacturer of compressors(POE).
NOTE:
Regularly carry out leak checks and immediately repair any leak found.
EREBA ACCESS 17 - 40 T/HT EN - 12