A circuit breaker or switch must be installed near the air dryer, shall be easy to reach, and shall be certified
according to EN60947-1 and EN60947-3. The switch or circuit breaker shall be marked as the
disconnection device for the air dryer and needs to be marked with On and Off positions.
DIN connector wiring
For permanently electrical connection of the dryer, consult the electrical diagram.
The mains cable shall be protected with a 3A fuse.
Output connections do not provide isolation from the mains. Connectors and
interconnecting wiring must meet EN61010-1:2001 requirements for reinforced insulation.
Energy management with Freeze contact (X3)
To freeze the regeneration cycle when the compressor runs unloaded, remove the jumper wire between pins
1 and 2 from the connector X3, and connect pin 1 and 2 of connector X3 with the potential free contact of
the compressor (contact open = freeze).
If the contact is opened, both solenoid valves will de-energise, closing the exhaust (no purge air
consumption), and both towers are pressurized.
Once the contact closes again (compressor runs loaded), the dryer will resume the cycle where it had left
off.
Instruction book
26 2920 7083 21
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