ROTHENBERGER ROKLIMA MULTI 4F - Manual (Page 17)

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amount of refrigerant previously selected, and will stop
automatically.
4.4.3 Charging.
During the charging process, the control panel will show
the charge pending, and the green LED will flash.
If we press a key, the message “charging” and the
remaining charge will appear in the control panel.
If no key is pressed for 2s, the remaining charge will
appear in the control panel in large digits.
C for 2s: Mode cancelled.
4.4.4 Charge completed.
Once the charge has been completed, the message
“charge completed" will appear in the control panel,
and the green LED will be lit without flashing.
Pressing any key will cause the system to go into scales
mode.
4.5. Setting the scales to zero (Tare Mode)
It is possible, whenever necessary, to set the tare of the
scales (setting to zero).
Once the tare of the scales working option has been
confirmed (see 4.2.2)
4.5.1 Tare of the scales.
The scales tare is set automatically, so that the current
weight corresponds to 0 kg.
4.5.2 Tare completed.
Message “tare completed” and green LED lit without
flashing.
Pressing any key will cause the system to go into scales
mode.
Warning! Never set the tare with the bottle on the plate
of the scales.
Before setting the tare, the bottle should be removed
from the scales.
4.6. Automatic Vacuum-Charge
Once the automatic vacuum & charge working option
has been confirmed (see 2.2)
Before initiating the vacuum and charge option, open
the capillary tube's valve, in the flexible tube, and allow
for the refrigerant to flow.
4.6.1 Vacuum time selection.
Keys or : Increase or decrease the selected time
(minutes).
OK: Confirm and continue.
C: Mode cancelled.
4.6.2 Selecting the amount of charge.
Keys or : Increase or decrease the programmed
charge in 0.01kg.
OK: Confirm and continue.
C: Mode cancelled.
4.6.3 Doing vacuum.
For the selected period of time, the control panel
indicates the remaining time in minutes and seconds,
and the flashing green LED indicates that the vacuum
is being created.
If the system detects that air is going in while the vacuum
is being created, the message “air in the system”, will
appear in the control panel, red LED will flash and the
vacuum time will restart.
If gas is detected in the system, the message “refrigerant
in the system” will appear in the control panel.
Pressing C for 2s will cancel the process.
4.6.4 Checking for leakage.
All through the period of time programmed for the
leakage test, the control panel indicates the remaining
time in minutes and seconds, and the green LED
flashes.
Should the system detect a leakage in the system, the
message “leakage detected” will appear in the control
panel. This indicates that the circuit has a leakage, and
that this must be identified and repaired.
Pressing C for 2s will cancel the process.
4.6.5 Checking the minimum weight.
If the existing weight on the scale is lower than
the weight programmed, the message “no minimum
weight” will appear in the control panel. Otherwise, the
application will transfer to the inside of the A/C system
the exact amount of refrigerant previously selected, and
will stop automatically.
4.6.6 Charging.
During the charging process, the control panel will show
the charge pending, and the green LED will flash.
If we press a key, the message “charging” and the
remaining charge will appear in the control panel.
If no key is pressed for 2s, the remaining charge will
appear in the control panel in large digits.
C for 2s: Mode cancelled.
INSTRUCTIONS FOR USE AND MAINTENANCE