Vacuum Pump; Leakage Detection - Argo DUAL 14 DCI R32 Manual De Instalacion Y Uso

Vacuum pump

Use the vaacum pump
Humid air left inside the refrigerant circuit can cause
compressor malfunction. After having connected
the indoor and outdoor units, bleed the air and
humidity from the refrigerant circuit using a vacuum
pump.
(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 low-pressure knob on the vacuum pump
coupling.absolute vacuum of 10 mm Hg has been
reached.
(5) With the vacuum pump still in operation, close
the 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.
Vacuum pump
Vacuum pump Location
(7) Turn the body of the 2-way and 3-way valves.
Disconnect the vacuum pump hose.
(8) Replace and tighten all the caps on the valves.

Leakage detection

1. With leakage detector: Check if there is leakage with leakage detector.
2. With soap water: If leakage detector is not available, please use soap water for leakage detection.
Apply soap water at the suspected position and keep the soap water for more than 3min. If there are
air bubbles coming out of this position, there's a leakage.
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