Special Requirements For R32 Gas - Olimpia splendid SHERPA TOWER S2 E 4 Instrucciones Para La Instalación, Uso Y Mantenimiento

30. All the refrigerant must be recovered safely, also collect a sample of oil and
refrigerant if it is necessary to collect a sample of oil and refrigerant in case
an analysis is necessary before the reuse of the recovered refrigerant.
Before carrying out the procedure, electrically insulate the system and make sure
that:
• the mechanical movement equipment of the cylinders containing
refrigerant are available;
• all the personal protective equipment is used correctly;
• the recovery process is supervised, at any moment, by a competent
person;
• the equipment and recovery cylinders are compliant with the standards.
Empty the system and, if that is not possible, use a collector in order to be
able to remove the refrigerant.
Before the recovery starts, make sure the cylinder is positioned on the scale
and start the recovery machine working according to the instructions.
31. DO NOT fill the cylinders excessively (the liquid must not be higher than
80% of the volume).
DO NOT exceed, even temporarily, the maximum operating pressure of the
cylinder.
Once the process is complete, as previously described, make sure the
equipment and the cylinders are removed. Before switching on the
appliance, check that all the insulation valves are closed.
32. Recovered refrigerant must not be discharged in another refrigerating
systems unless it has been cleaned and checked.

0.5 - SPECIAL REQUIREMENTS FOR R32 GAS

The tables refer to 8-10kW units. For 4-6kW units a maximum length of the
pipes of 29m is allowed and no evaluation of the minimum area is necessary.
• The pipes must be protected against physical damages.
The installation of the pipes must be the minimum one.
• If the total load of refrigerant in the system is <1,842 kg (namely if the pipes
length is ≤ 20m for 8/10kW units), there are no requirements of minimum area
to be evaluated.
If the refrigerant load exceeds 1,842 kg (namely if the length of the pipes is
≥ 20m for 8/10kW units), the request for minimum area must be checked as
shown by the following flow chart.
X- Internal unit
A- Room where the internal unit
is installed
evaluation of the minimum area
must be done)
B- Room adjacent to A
EN - 12
(on which the
A
X
≥1,5m
B
≥ANV
min
≥ANV
min