EASYREC 1R-2R ENGLISH
15
6. Refrigerant transfer with Push-Pull method
7.1. WARNING
Duly connected by means of the push-pull method, the recovery unit allows the rapid transfer of the
liquid refrigerant from the refrigerant system to an external cylinder.
Connect the recovery unit and the refrigerant circuit by means of a filter drier and of a two-way manifold,
flexible hoses with ball valve, a cylinder with double valve (liquid-vapour); these items are supplied
separately on request and must be connected as shown in the picture.
Before use, make sure that all the flexible hoses, the filter drier, the stocking cylinder and the recovery
unit have been previously evacuated or that they contain the same refrigerant as the one to be
transferred. Make the refrigerant transfer with the refrigerant’s system turned off.
The stocking cylinder must have a capacity equal to the quantity of refrigerant that has to be removed;
anyhow, it must not be charged above 75% of its maximum capacity. It is recommended to use an
electronic scale in order to check the refilling of the stocking cylinder
7.2. REFRIGERANT TRANSFER
Make sure that the V4 valve is on position “Recovery”
a) Make sure all connections are correct and tight(refer to following illustration):
b) Operate on the refrigerant’s system in order that most part of the refrigerant will be pumped into
the liquid side of the system.
c) By means of the flexible hoses with ball valve, connect the cooling system liquid receiver
connection to the stocking cylinder liquid valve (with tube) (see the above picture)
d) By means of the flexible hose with ball valve, connect the recovery unit filter drier (IN) to the
stocking cylinder vapour valve (valve without tube)
e) By means of a flexible hose, connect the exit connection of the recovery unit to the HVAC
system vapour connection
f) Open the INPUT and OUTPUT valves of the recovery unit
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