SystemAir MCV 15 Manuel D'installation page 20

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For those units that have separate condensers (remote condensers or split condensing units), the
values indicated refer to a distance of about 10 metres between indoor unit and outdoor unit.
For circuits that are greater than 10 metres, the amount of refrigerant gas should be increased
according to the length and size of the piping.
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VKRXOG DGGHG The quantity of oil depends on how the system has been installed, whether it allows
the return of the oil to the compressor more or less easily.
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XVXDOO\ 6XQLVR 2LO * ZKHQ WKH UHIULJHUDQW JDV LV 5
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(0.$5$7( 5/6 ,&, WKHVH RLOV XVHG IRU WKH VDPH JDV FDQ EH PL[HG  Great care should be
taken that the oils do not come into contact with the air and that the piping has been perfectly dried.
Keep in mind that in systems that have lengthy and extensive pipework and/or are equipped
with larger condensers than normal, it is advisable to fit in the circuit an extra liquid reciever in order to
better handle the larger quantity of refrigerant gas that has been loaded. This should allow the
possibility of gathering all the gas in the recievers in case of maintenance or specific repairwork to the
system.
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