Argo X3 ECO PLUS - Vacuum pump; Vacuum pump procedure

V 10/19
83
Vacuum pump
Maintenance
Only use adequate equipment for the R32
refrigerant
Do not use a different refrigerant from
R32.
Do not use mineral oils to clean the unit.
Post-installation checks
Checks Possible fault
Has the unit been installed securely? The unit could fall, move or produce excessive
noise.
Is the thermal insulation of the pipes sufficient? Risk of condensation and dripping water.
Has the check for gas leaks been executed? Risk of cooling (heating) not satisfactory.
Does the water drain properly? Risk of condensation and dripping water.
Does the supply voltage match the voltage indicated on
the data plate?
Risk of malfunction or damage to components.
Vacuum pump
Humid air left inside the refrigerant circuit can cause com-
pressor malfunction. After having connected the indoor
and outdoor units, bleed the air and humidity from the
refrigerant circuit using a vacuum pump.
Vacuum pump Vacuum pump
Twisting moment (N.m)
35-40
60-65
45-50
Φ12
70-75Φ19
Φ9.52
Diameter (mm)
Φ16
(1) Unscrew and remove the caps from the 2-way and 3-
way valves.
(
2
) Unscrew and remove the cap from the service valve.
(3) Connect the vacuum pump hose to the service valve.
(4) Operate the vacuum pump for 10-15 minutes until an
absolute vacuum of 10 mm Hg has been reached.
(
5
) With the vacuum pump still in operation, close the
low-pressure knob on the vacuum pump coupling.
Stop the vacuum pump.
(6) Open the 2-way valve by 1/4 turn and then close it
after 10 seconds. Check all the joints for leaks using
liquid soap or an electronic leak device.
(
7
) Turn the body of the 2-way and 3-way valves. Discon-
nect the vacuum pump hose.
(8) Replace and tighten all the caps on the valves.
Φ6 15-20
18K unit need to be installed the indoor unit
conversion joint
18K MODE:
INDOOR
UNIT
Connect to the
indoor unit
Refrigerant fluid di rection of fiow
3-way valve
inlet
(8) Secure
(2)Turn
(2)
(7)Turn to open fully
Tu r n
Valve cap
Valve cap
Service
(2)Turn
(8) Secure
(8) Secure
2-way valve
(6) Open by 1/4 turn
(7)Turn to open fully
6,35 15-20
9,52 35-40