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8.8
Recharging with refrigerant R410A
•
Connect the tank 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.
•
Fill with refrigerant in liquid form until you reach 75% of the total charge.
•
Then connect to the inlet on the pipe between the thermostatic valve and evaporator 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 section 4.4 have been reached.
Introduce refrigerant through the inlet in the liquid line.
A unit that was originally charged with R410A in the factory must not be charged with
other refrigerants without the written authorization of Lennox.
8.9
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 R410A 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.
@DNOVA THN_R410A-IOM-1506-E
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