Function Of The Unit; Overview (A); Commissioning - Rothenberger ROREC Pro Digital Bedienungsanleitung

Noise pressure level (L
Sound power level (L
The noise level during operation can exceed 85 dB (A). Wear hearing protection!
Measured values determined in accordance with EN 60335.
4

Function of the Unit

4.1 Overview
Display
1
On/Off button
2
Menu button
3
Low Pressure display
4
High Pressure display
5
OFP display (in combination with an OFP cable)
6
4.2

Commissioning

Description of the ROTHENBERGER Recovery unit:
The Recovery unit is used to extract refrigerants from refrigerant cycles.
It is a two-piston compressor device which totally extracts all refrigerant. A low pressure switch
protects against damage to the piston. An overpressure switch prevents overfilling of the refrig-
erant recycling bottle.
Error messages:
The following error messages can appear on the display:
LP E1: The low pressure sensor is not attached
HP E1: The high pressure sensor is not attached
E2: The feed voltage is too low
E3: The feed voltage is too high
E4: The motor is overloaded
General comments:
Always use the device with a refrigerant filter to avoid damaging the compressor!
The device can be controlled using a fill level sensor. Recovery bottles with this function are not
however available in all countries. The so-called OFP cable (orange) is supplied for this function.
If the extraction unit and the Recovery bottle are connected together using this cable, automatic
switching off occurs and the OFP LED lights up as soon as the bottle is 80% filled. If the cable is
only connected to the device and not to the bottle, it cannot be started.
Always store the device with closed off connections and put the operating button in the
CLOSE position!
General settings:
Calibration of pressure sensors:
The device is fitted with a manual calibration function. If the display shows a pressure even
though there is no device attached the sensors can again be set to 0 bar.
 To calibrate, hold the menu button down for 5 seconds. A signal tone sounds and the sen-
sors are set to 0.
Please note that calibration is only possible when the displayed pressure is less than 2 bar.
Low pressure switch off:
The device is fitted with a low pressure switching off function (triggers at -20 inHg), which pro-
tects the internal components against operation without a lubricant and prevents evacuation of
the refrigeration cycle. The LP lights up upon reaching this value. There are various modes
available for this switching off:
) ................................
pA
) ................................ ≤ 79 dB (A) ¦ K
WA
ENGLISH
≤ 68 dB (A) ¦ K 3 dB (A)
pA
3 dB (A)
WA
Motor fault indicator
7
Operating button
8
Inlet connection
9
Outlet connection
10
Storage compartment at the rear
11
(A)
13