4 Operation
4.1 Initial start-up
Safety
The operator must apply all relevant Safety precautions during operation.
The maximum recommended motor starting frequency is starts is 20 starts per hour. In
order to keep the number of starts at an acceptable level, the compressor must be
connected to an air receiver with a suitable size.
Initial start-up
1. Remove the yellow painted transport brackets (E, F) (if applicable)
Transport brackets on SF 6 and SF 6
+
2. Close the air outlet valve (AV - see section Introduction ).
3. Check the settings of overload relay (F21 - see section Settings of overload relay and fuses).
Check the drive motor connections. Connect the compressor to the electricity net.
4. Close the condensate drain valve(s). See sections Introduction and Flow diagram for their location.
5. Switch on the voltage. Lamp (H1) alights.
Start the compressor and stop it immediately by means of switch Q1 (see section Introduction).
On 3-phase units, check the rotation direction of drive motor. For this purpose, a sheet with start-up
instructions is fitted to the outlet grating. When the rotation direction is correct, the paper will be
Instruction book
2920 7110 11 23
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