Rothenberger ROREC Pro A3 Bedienungsanleitung Seite 21

the associated dangers. Otherwise, there is a danger of operat-
ing errors and injuries.
Supervise children during use, cleaning and maintenance. This
will ensure that children do not play with the device.
The equipment must only be operated by qualified specialized
staff!
Only authorized refillable refrigerant tanks can be used. The setting of the pressure limiting de-
vice shall not be lower than 45 bar(653 psi). Do not overfill the recovery tank, maximum at 80%
capacity to make sure that there is enough space for liquid expansion. Overfilling of the tank
may cause a violent explosion.
Always wear safety goggles and protective gloves while working with refrigerants to protect your
skin and eye from hurting by refrigerant gases or liquid.
Do not use this equipment near flammable liquid or gasoline.
A digital scale is needed to prevent overfilling.
Be sure that the place where you are working is thoroughly ventilated.
Before connecting, be sure to turn on the recovery unit to check:
1. If the fan is working properly (if there's air blowing out from the condenser side).
2. Connect the check valve to the outlet port and close the check valve. Keep the inlet port
open to atmosphere. Turn the knob to the "FAST" position and start the machine. The pres-
sure on the outlet side should rise to 558 psi (3,85 MPa/ 38,5 bar) within 65secs. After that,
the high pressure switch protection switch is on, and the machine will automatically shut
down.
When using an extension cord it should be minimum 14 AWG and no longer than 25 feet, oth-
erwise it may cause the voltage drop and damage the compressor.
The input pressure of the unit should not exceed 26 bar (377,0 psi)
The unit need to be laid in horizontally, otherwise it will lead to unexpected Vibration, noise or
even abrasion.
The ventilation opening of the unit must not be blocked.
If the overload protector pops, reposition it after 5 minutes.
When doing self purging operation, the knob must be turned slowly to "PURGE" to ensure the
inlet pressure is less than 5 bar (72.5 psi).
If fluid hammer happens in the recovery, please turn the knob slowly to "SLOW" position and do
not let reading pressure drop to zero.
When you select fast model to start work, please monitor output pressure, if the output pressure
increase fast to 27 bar (391.6 psi), please turn to slow mode slowly and monitor the outlet pres-
sure not exceeding 35 bar (507.6 psi).
The equipment is intended for serving air-conditioning and refrigeration systems containing less
than 200 lbs of high-pressure refrigerant.
The tank and hose used must comply with the local regulations.
Additional Safety instructions for refrigeration systems containing Flammable refriger-
ants:
Except for existing occupational hazard procedures or other regulations that may be required by
local, state or federal agencies, the following are additional safety recommendations when ser-
vicing refrigeration equipment that contain Class A2L, A2 or A3 refrigerants.
The area of service should be marked as Temporary Hazardous Zone. This
will be an area with a radius of 3m centered on refrigeration equipment being
serviced and should have no smoking and other hazardous signs posted.
Local supervisor should be notified of the zone's existence.
Ensure the refrigeration equipment's power has been discontinued during maintenance work.
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