14
4.1 Electric unit adjustments before operation
1
Install pressure gauge or pressure
sensor to the seat in the pressure
gauge adapter.
Make sure the at gaskets
supplied with the control unit are
correctly positioned in the pressure
gauge adapter seat.
• nylon adapter = 1 gasket
• brass adapter = 2 gaskets
• Pressure gauge:
- tighten the pressure gauge into the relevant seat of pressure gauge holder ange until locking it,
without forcing it.
Use ARAG pressure gauges with 1/4" M coupling and a suitable end scale for the maximum operating
pressure.
• Pressure sensor:
- use ARAG sensors (Code 466112.X00); please read the instructions manual supplied with the
device for full installation information.
2
Set the relevant switch on the control
device to 'OFF' to set the main valve
so as to allow discharge.
3
Turn the knob anticlockwise to comple-
tely open the hand wheel of the
maximum pressure valve.
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