h. Repeat the seal test.
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
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,
this is still running.
e
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
ers in the outdoor unit documentation.
loaded on the refrigerant label using
indelible ink.
established in the technical data (kg).
by the installation technician (kg).
values (kg).
-
GR A
-
-
B
-
A
B
A
B
plaque
A B
,
A B
+
kg
1
kg
2
kg
3
B
A
EN - 23
NEXYA S4 E