Airwell PAC BTE UI 4 Manuel D'utilisation page 22

4 - REFRIGERATING CONNECTIONS
connect F to the vacuum pump
open cocks A, C and I
start the vacuum pump
in optimal conditions, 15-60 minutes are required to create
the vacuum. In the event of high moisture content in the
piping or the temperature is < 20 °C, a few hours may be
required
reach the lowest value (approximately 1 mbar = 100 Pa.)
close cock A
turn off the pump
overlap the red pointer of the vacuum gauge to the black
one
check the vacuum gauge to ensure that the pressure does
not rise, for a few minutes
if it rises, repeat the procedure
if everything is OK, proceed
connect E to the coolant cylinder
open cock B to charge the coolant (see table "additional
energy exchanger charge)
close cocks B, C and I
disconnect pipes D and H and cocks 1 and 2
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