MasterCool 69789-220 Instrucciones De Operación página 19

case, close the high-pressure tap (leave the low pressure open), and turn the A/C apparatus
on.
Once the filling operation has been completed the machine displays the message:
Close the high and low pressure taps. Press START to continue:
Start the vehicle's engine and the A/C system and wait at least 3 min:
At this stage the system is running normally and the high and low pressures can be checked by
reading them off the relevant pressure gauges. Press STOP to exit.
Only disconnect the high pressure rapid coupling (if necessary switch off the engine) and press
START:
Start the A/C system, open the high and low pressure taps and make the A/C system suction
the refrigerant left in the pipes. Press START to continue:
Wait until the high and low pressures balance out, after about 1 min disconnect the machine's
low pressure rapid coupling on the vehicle's A/C system and switch off the engine.
Press STOP to complete the procedure.
N.B. - When working with A/C systems with a single high-pressure coupling, set the charging
quantity ate about 100g in excess of the required quantity, since in this case it will be
impossible to recover the residual refrigerant from the hoses.
INSTRUCTIONS MANUAL
End charging
Close HP and LP
Press START to continue
Press RESET
Start the engine and the
A/C system to check
pressures
Press START
CHECK PRESSURES
STOP to exit
Disconnect HP couplings
Press START to empty
pipes
Open HP and LP pipes
Start A/C system
Press START to continue
Wait for HP and LP to
balance and close rapid
couplings
STOP to complete
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