Comprag A1108 [16/120] Regulating system

16 Version 1.2

2.5 Regulating system

Fig. 2.5 Regulating system

The system is controlled by an electronic controller t-Log (2) which keeps the net pressure

within programmable pressure limits by automatically loading and unloading the compressor

in relation to air consumption.

Unloading: If air consumption is less than the air delivered by the compressor, the net

pressure Increases and reaches the upper limit of working pressure (unloading pressure).

The controller (2) stops energize the solenoid valve (3), the valve opens, the air pressure from

the separator tank (4) closes the damper (5) of the suction valve (1), and the compressor’s

pneumatic system is unloaded through the throttle.

Loading: When the net pressure decreases to the loading pressure, the controller (2) energizes

the solenoid valve (3). Air pressure from the separator tank (4) is interrupted and the damper

(5) opens. Air suction resumes and the compressor runs loaded.