Regulation Of The Working Pressure; Inflation Up Of The Vase - PEDROLLO DG ped Instrucciones De Uso

REGULATION OF THE WORKING PRESSURE

The WORKING PRESSURE is viewed through the green LEDS which are illuminated
on the control panel.
The WORKING PRESSURE of the DG PED goes from a minimum of 1 bar to a maxi-
mum of 5.5 bar.
To regulate:
• Press button to view the WORKING PRESSURE.
• Press buttons or to increase or reduce the WORKING PRESSURE.
Every time button or
of 0.5 bar.
Example
Press button to visualise the WORK-
ING PRESSURE. With the green leds
switched on as shown in the diagram
the working pressure is 2 bar.

INFLATION UP OF THE VASE

The expansion vase inside the DG PED is preloaded in the factory to 1.5 bar.
The optimum inflation of the expansion vessel guarantees the
perfect operation of the system and it protects the membrane
from premature breakages.
The inflation of the expansion vessel must be done with
an installation pressure of zero.
Maximum inflation pressure 4 bar.
inflate the expansion vase to 1.5 bar less than the working
pressure (see table).
To inflate the expansion vase:
• Remove the plug.
• Use a compressor.
• Attach the tube of the compressor to the correct valve.
• Inflate the expansion vase to the chosen pressure.
26 | ENGLISH
is pressed the value increases or decreases in steps
To increase the working pressure to,
for example, 3 bar press button
twice. The value increases by 1 bar
(0.5 + 0.5 bar).
(only for skilled personnel)
The leds light up as shown in the dia-
gram. Working pressure is 3 bar.
Working pressure Inflation pressure
3.0 bar 1.5 bar
3.5 bar 2.0 bar
4.0 bar 2.5 bar
4.5 bar 3.0 bar
5.0 bar 3.5 bar
5.5 bar 4.0 bar