13
heatless desiccant air dryer
D3
4.3 shutdown procedure - standard controller
Isolate unit from compressed air system.
The unit will still be pressurized
Ensure the unit is fully depressurized and isolated
To fully depressurize, following the steps below;
• Cycle the dryer at least twice to ensure the unit exhausts and is completely depressurized.
• When fully depressurized the ‘clicking’ of the exhaust valves will be heard but no air exhausted.
• When the unit is fully depressurized, isolate from the electrical supply.