GA 12.107/5.02 - 12/97
15
Installation
2.7 Start-up
Check the phase sequence
Check the mains connection for correct phase sequence
each time the unit is connected to the power supply and
following every modification of the electrical connections.
The cable ends are marked with L1, L2, L3 and PE.
When connected this way, the clockwise phase se-
quence remains.
If the phase sequence is incorrect, the compressor unit
will be shut down after about 5 minutes in operation and
the “
TEMPERATURE
” error message will appear (thermal
switch
TSH
2).
Since malfunctions in the coolant supply can trigger the
same error message, check for correct coolant connec-
tion, flow rate and temperature. If the coolant delivery
volume and temperature are sufficient, then the difficulty
is probably due to inverted polarity. Isolate the mains
cable from the power supply and interchange two pha-
ses at the mains connection.
Helium filling pressure
Caution
If the RW 6000-1 is connected to 60 Hz line
voltage, the helium filling pressure may not
exceed 14
-1
bar at room temperature.
Release helium, if necessary. A helium filling adapter is
provided for this purpose with the compressor unit.
Unscrew the protective cap from the drain connection
(11/2).
Slowly and carefully screw the self-sealing couplings of
the adapter onto the drain connection.
Warning
Do not screw the adaptor on too quickly as
there is otherwise the danger that too much
helium will escape or that oil will be swept
along with the helium out of the compres-
sor.
Keep the face and bodily openings away
from the adapter discharge orifice.
Compressed gas can induce asphyxiation
effects at high concentration. Do not inhale
helium or use it to create a “squeaky voice”
effect.
Once the correct helium filling pressure has been
reached, remove the adapter once again. Replace the
protective cap on the drain connector.
Summary of Contents for RW 6000-1
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