Operation - Rothenberger ROREC Pro Digital Instrucciones De Uso

a. Lp0: Upon reaching -20inHg the device does not switch off (ATTENTION: no protection for
internal components)
b. Lp1: As soon as the limit value for 20 seconds is reached, the device switches off automati-
cally
c. Lp2: As soon as the limit value for 20 seconds is reached, the device switches off automati-
cally The device switches on again as soon as the pressure increases again and exceeds 0
bar. This mode is set as standard on newly delivered devices.
Please proceed as follows to set the various modes:
 Hold the menu button for about 8 seconds. A signal tone already sounds after 5 seconds
which refers to calibration of the sensors. Despite this continue to hold down the menu but-
ton further.
After 8 seconds the currently selected mode appears on the display. Through rapid tapping on
the menu button one can now switch between the modes. Inactivity for about 3 seconds leads to
saving of the currently selected value.
4.3

Operation

Standard liquid/gas retrieval:
 Check whether the operating conditions of the cycle are correct.
Ensure that all connections are correctly and firmly tightened!
 Open the liquid connection of the recycling bottle.
 Ensure that the operating button is set to the position "Recover".
 Open the outlet connection of the plant.
 Open the high pressure connection on the manifold (if connected). Opening of the liquid
connection has the effect of the liquid being removed from the cycle. After removal of the
liquid, for complete emptying of the plant, open the high pressure connection on the mani-
fold.
 Close the plant at a suitable outlet (see type plate on the plant).
 Press the "On/Off button" in order to start the compressor.
 Leave switched on until the desired pressure has been established and the device switches
itself off.
 Close the low and high pressure connections on the manifold.
 Turn the unit off.
 Close the inlet connection of the unit and proceed with the self-emptying as described in the
next section.
ATTENTION: Empty the device after every use. In the case of non-emptying of the
refrigerant residues, damage can occur to internal components due to acid and there-
fore the service life of these components is shortened!
Self-emptying procedure for removal of refrigerant residues from the recovery unit:
 Slowly turn the operating button to the PURGE position and leave the plant switched on until
the desired pressure is achieved and/or the internal pressure switch-off switches off auto-
matically.
 Close the connections of the recovery bottle.
 Interrupt the power supply, remove all hoses and dry the filter.
 Turn the operating button to the CLOSE position.
 In the last step cover the cap on the inlet and outlet connection.
Push/Pull method for liquids:
The Push/Pull method is only used for large plant in which there is at least 10 kg of liquid refrig-
erant.
ATTENTION: A pair of scales must be used for the "Push/Pull" method in order to
prevent overfilling of the disposal bottle itself when the bottle is fitted with a float fill level
indicator!
14 ENGLISH