I have an Airmaster Tiger 14/60, it will not charge beyond 4.5 bar, it can be completely empty but still have to be switched back on.
Trying to follow you.
A solenoid valve between the pump heads and the air storage tank. This is to enable the compressor to run or stop? The air supply from the tank stays open to air outlet(s).
A Clarke power supply switches the main power on or off.
The compressor initially runs to 3.4 bar, shuts off and will not restart until the Clark switch is opened and closed again. Correct?
The pressure control switch is valved off to the air tank or to the pump heads?
Is this a new setup, or is existing and worked before?
Normally, there are two ports before the check valve and two ports after the check valve, all on the check valve device screwed on to the air tank inlet.
Before the check valve, one tube goes to the pumps and the other to the pressure switch relief valve. The pressure switch will activate the relief valve when the preset tank pressure is satisfied, this drains and reliefs the pumps pressure making them ready to restart under no pressure. There should be no solenoid valves here.
After the check valve, ported is a tube to the pressure switch, the switch operates on this pressure, tank pressure, the tank is also on this port side, after the check valve.
The pressure switch has a cover, under the cover is a set of electric contacts, a operating pressure adjustment nut pushing on a coil spring. Loosening the spring tension lowers the operating pressure, tightening the tension of the spring raises the operating pressure. This is the adjuster of the tank pressure. The only leaking of air should be, after the pressure is satisfied, when the pressure relief valve is activated by the satisfied pressure switch. Any other leaks are considered leaks.
To remotely control the compressor to run/stop, a solenoid valve can be installed on the air tank outlet, or a switch (or timeclock) connected in series with the pressure switch contacts and power supply.
For finishing touch, I recommend you install an automatic electronic timed drain valve to drain water out of the air tank, beats doing it manually, plumbing required.
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