5
m Carry the vacuum pump on the designated handle only.
m Keep the pump levelled and secured during transport to avoid oil spillage. Oil spillage
could cause damage to the electric motor.
Electric data
The electric data is mentioned under „technical data“ on page 8 of this manual.
Technical description
The REFCO vacuum pumps RL-2, RL-4, RL-8 are rotary vane type vacuum pumps. The
pump is cooled internally by a mechanical impeller during operation. A tted oil mist lter
allows oil back ow into the oil circulation system of the pump head. The gas ballast valve
prevents the build-up of condensation inside the oil box and the pump head. The motor
is protected by a thermocouple which turns the pump o automatically if overheated.
m Caution! The motor will restart automatically after a cooling period of approximately
20 minutes.
Contents of delivery of standard execution RL-2, RL-4, RL-8
• Vacuum pump oil DV-44/DV-45
• Multilingual instructions of use
The RL-8 is in addition equipped with a ball valve to isolate the pump from a system.
m The pumps are supplied without oil lling. The must be lled with the oil provided prior
to the rst operation.
Option: Intake port with anti-back ow to prevent oil sucks back in case of an accidental
shut o of the pump or power cut.
Intake port with back ow prevention:
For RL-2: RL-2-307-RS 4663786
For RL-4: RL-4-307-RS 4663336
For RL-8: RL-8-307-RS 4664244
Other accessories
Vacuum gauge with ball valve:
For vacuum pumps RL-2, RL-4, RL-8: RL-VAC 4663981
Special hose to vent combustible refrigerant from closed environments:
Available for RL-2, RL-4: 10859-CL-197-Y-SP 9881865
Note
Please note the minimal operating temperatures for the vacuum pumps are described
under „technical data“ on page 8 of this manual. If the environmental temperatures are
below the minimal rates the pump may take several seconds or minutes until the motor
runs on full speed and the pump can develop its full capacity.
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