39
As previously mentioned, a control board can be supplied that houses 3 operation pushbuttons and the
counter that memorizes the number of operating hours (Fig. 52).
1 ON - green button.
It enables the compressor to be started up.
The button has a light inside that comes on
when it is pressed.
(The general switch must be in the “ON”
position).
2 OFF - red button.
It enables the compressor to be stopped.
The button has a light inside that comes on
when the power supply is connected.
3 MANUAL PURGE - yellow button.
It enables the condensate to be purged manually.
This function permits the pressure present inside the condensate separators and the filter to be
discharged, evacuating the condensate through the electromagnetically- controlled valves.
This operation is normally carried out by the timer at regular intervals.
4 HOUR COUNTER
It enables the actual operating hours to be memorized in order to be able to carry out the maintenance
work as provided for.
5 PRESSURE SWITCH
It indicates the maximum cylinder filling pressure and can be adjusted manually. If the set pressure
is reached, the compressor is switched off.
Wall-mounted control panel for models with electric power supply
(optional)
7.1.1
52
Control panel
Summary of Contents for MCH 13/DH
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Page 94: ...94 Machine diagrams...
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