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 fitted oil mist filter
allows oil back flow 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 off 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 filling. The must be filled with the oil provided prior
to the first operation.
Option: Intake port with anti-back flow to prevent oil sucks back in case of an accidental
shut off of the pump or power cut.
Intake port with back flow prevention:
For RL-2:
RL-2-307-RS
For RL-4:
RL-4-307-RS
For RL-8:
RL-8-307-RS
Other accessories
Vacuum gauge with ball valve:
For vacuum pumps RL-2, RL-4, RL-8:
Special hose to vent combustible refrigerant from closed environments:
Available for RL-2, RL-4:
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.
4663786
4663336
4664244
RL-VAC
10859-CL-197-Y-SP
4663981
9881865
5