universalblue UAS1906-21 Manual De Instrucciones página 63

conditioning. We cannot exclude the possibility that some types of
special wiring diagrams are not included.
The diagrams are for your reference only. If the wiring connections
are different from these diagrams, please refer to the wiring
diagram printed on the unit you purchased.
Leakage control
Before using the device, remove the cover of the stop valve (liquid
and gas valves) and make sure to tighten them again for safety (to
prevent possible air leaks).
To prevent air leakage and dripping, tighten all pipe connection nuts.
2.Connect the shut-off valve, charging hose, distribution valve and
vacuum pump.
3.Fully open the LO handle of the distribution valve for at least 15
minutes and check that the composite meter displays -0.1Mpa(-
76cmHg).
4.After applying the vacuum, fully open the shut-off valve with a
spanner.
5.Check that both indoor and outdoor unit are free of air leakage.
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