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COMPRAG RDX series compressed air refrigerated dryer
1
2
Fig. 4.1.3 Reset of high-pressure relay
1. High-pressure relay
2. Manual release push button
Pressure value: R 404 A Shutdown at 1.5 bar (-24,7°C) – Start-up at 5.5 bar (2,5°C).
S3: The high-pressure relay is arranged on the discharge side of the compressor and is
actuated if the pressure exceeds the preset value. Attention: After a “high pressure error”
occurs, the dryer blocks a restart attempt as this recurring error may cause damage to
the dryer. It is manually reset using the button on the actual pressure relay. In order to do
this, unscrew the left panel and press the discharge button, as shown in gure 4.1.3. The
cause of the error needs to be remedied before it can be unblocked.
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