Energie AQUAPURA SPLIT 160i, Техническое руководство

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AQUAPURA SPLIT
English
Technical Manual
4.2.3. Load of Nitrogen
a) After finishing the couplings, make sure there are no leaks. For this purpose, inject a load of ni -
trogen with a pressure of 10 bar through the pressure inlet (3-way valve);
b) Brush every coupling in soap foam and make sure that the pressure in the pressure gauge is
constant;
c) After checking for leaks, remove nitrogen from the circuit.
4.2. 4. Create Vacuum
a) During the whole procedure, employ, connections, vacuum pump and pressure gauges suitable
for fluid R134a;
b) Employ a vacuum pump only to remove the air and humidity inside the piping;
c) Never use the system coolant to purge the connection pipes;
d) The valves must be completely shut during the vacuum process, in order to create vacuum only
in the piping;
Shut Valves
A – 2 Way Valve B – 3 Way Valve
e) Create a vacuum with the vacuum pump plugged to the inlet of the 3-way pressure valve as de -
picted, keeping the valves completely shut until there is a vacuum of 50 Pa (0.5mbar);
f) Once the vacuum procedure is over, shut the vacuum pump valves. The vacuum pressure gauge
should indicate the same reading after the pump has stopped, ensuring the installation is in a vac -
uum and ready for running the coolant;
g) After concluding the vacuum procedure you must open the two valves so that the coolant may
circulate throughout the whole system..
Open Valves
A – 2 Way Valve B – 3 Way Valve
After concluding the vacuum, do not remove the hoses while the system is not com -
pletely pressurized by the coolant