LCA
RG66000986 – Rev.00
24
CHARGING WITH R407C REFRIGERANT
- Connect the cylinder of refrigerant gas to the male 1/4 SAE inlet situated on the liquid line after
discharging a little gas to eliminate air in the connection pipe.
-
Carry out the charging operation with the refrigerant in liquid form
until you reach 75% of the
total charge.
- Then connect to the inlet on the intake line and complete the charging process with the refrigerant
in
liquid form
until no more bubbles can be seen on the liquid level indicator and the operating
parameters specified in the section "Checking the refrigerant level" have been reached.
Since R407C is a ternary mixture, charging must take place exclusively with liquid
refrigerant to ensure the correct percentages of the three constituents.
Introduce refrigerant through the inlet in the liquid line.
A unit that was originally charged with R407C in the factory cannot be charged with R22
or other refrigerants.
ENVIRONMENTAL PROTECTION
The law implementing the regulations [reg. EEC 2037/00] which govern the use of ozone-depleting
substances and greenhouse gases bans the dispersal of refrigerant gases in the environment and
requires whoever is in their possession to recover them and, at the end of their useful life, either to
return them to the dealer or take them to a suitable waste disposal facility.
The refrigerant HFC R407C is not harmful to the ozone layer but is included among the substances
responsible for the greenhouse effect and thus falls within the scope of the aforesaid regulations.
Therefore, special care should be taken when carrying out maintenance work to
minimise refrigerant leaks.
