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2.6.5 - Plant vacuum
When all of the tests and checks regarding perfect sealing have been performed, a vacuum must be applied
to the system to remove the impurities contained therein (air, nitrogen and humidity).
a. Use a vacuum pump with capacity of 40 l/min (0.66 l/s) and connect it to the gas line service fitting using
a flexible hose with 5/16" attachment.
b. Lower the pressure inside the circuit to the absolute value of 50 Pa for approx. 2 hours.
If, after this period of time, the pressure has not been taken to the set value (50
Pa), it means that there is a lot of humidity in the circuit or there is a leak.
c. Maintain the vacuum pump operating for another 3 hours.
If the value still hasn't been reached after this period of time, look for the leak.
d. When the vacuum has been applied and the system has been cleaned, remove the pump fitting when
this is still running.
e. Tighten the cap (20) (figure 24).
2.6.6 - Filling the plant
Remove the cap in order to operate on the intake line cock and on that of the liquid which, on opening, allow
the appliance to be filled with refrigerant.
• Look for an adhesive sheet with 2 stick-
ers in the outdoor unit documentation.
• Remove the lower label and stick it in
proximity of the loading and/or reset point.
• Clearly note the amount of refrigerant
loaded on the refrigerant label using
indelible ink.
• In box "1" note the amount of gas
established in the technical data (kg).
• In box "2" note any additional load inserted
by the installation technician (kg).
• In box "3" the sum of the two previous
values (kg).
• Remove the transparent label remain-
ing in the upper part of the adhesive
sheet and stick it over the previous one
affixed to the loading point.
GR A
-
φόρτ
-
B
-
A
B
A
B
plaque
A B
, και +
A B
kg
1
kg
2
kg
3
B
A
EN - 25
ARYAL S1 E
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