Sterling SDF 250 - Manual (Page 63)

SDF 250/400/500
Assembly instructions 8-4
8.4. Compressed Air Supply
A compressed air supply is needed to operate the valve stem.
Check whether the compressed air piping has been installed and connected properly.
Check whether fittings, length and quality of the hose assemblies are in accordance with the
requirements.
The operating pressure is 5-6 bar (system overpressure).
Check the compressed air in the factory ductwork system.
Set the air pressure at 5-6 bar (system overpressure).
Open the panel by means of the provided switch cabinet key.
Attach the compressed air main to the maintenance unit (A).
Mount the panel.
L
Depressurise the compressed air piping of the unit for all types of
work.
F
The compressed air has to be dewatered, dustfree and oilfree.
The operating pressure is 5-6 bar (system overpressure).