2
Operation
Refer to exploded parts diagrams and illustrations when reading this section.
Starting & Stopping
Plug the compressor into an outlet socket of nominal voltage and fitted with the
correct fuse as shown in section Electrical Connections.
Switch the compressor on using the O/l switch located on the pressure switch
- see
figs 1&2.
The compressor will start running and automatically switch off at the preset pressure.
Note !
Duplex models VT300/300D, VT400/400D are fitted with a sequential start system to
reduce electrical loading.
You will notice one motor starting a few seconds after the other. This is normal.
As air is used the pressure drops and the motor will restart at the preset pressure.
Approx 2 Bar differential.
Note !
Each time the compressor switches off or the power supply is interrupted, you will
hear a short hiss of air.
You are hearing the unloader valve discharging the residual delivery pipe pressure.
This is normal.
Summary of Contents for VT75
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