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12. ELECTRICAL WIRING DIAGRAM
13.
GENERAL DESCRIPTION OF PARTS
+ Desiccant – An adsorbent used for drying air or gases. The proper quantity, size and type are necessary.
+ Inlet Valve – Normally open air operated switching valves used to direct air flow through the towers.
+ Exhaust Valve – Normally closed air operated switching valves used to exhaust purge air, hold air in the on-line
tower and exhaust air from the tower ready to be regenerated.
+ Outlet and Check Valves – Valves that allow full flow in one direction and no flow in the opposite direction.
These valves are used in conjunction with the inlet and exhaust valves to control the desired flow of process air
through the dryer.
+ Safety Relief Valves – Valves on each tower to protect the vessels from overpressure situations. The setting is
indicated on each valve.
+ Purge Exhaust Silencer – Installed to reduce exhaust noise during purge and blow down for the protection all
personnel and to comply with OSHA standards. Silencers are non-mechanical, but must be maintained.
+ Purge Flow Control Valve – Valve that allows the adjustment and regulation of purge air flow used for the
regeneration process.
+ BEKOMIN Controller – Electronic controller that provides an interface between the operator and dryer, provides
dryer cycle status, operates the electric solenoid valves, provides indicator lights and alarm controls. All hard
wired connections, including the power connections during installation are made to this device.
+ Electric Solenoid – An electromechanical device used for controlling the flow of liquid or gas.
DRYPOINT® XC Series Heatless Regenerated Dryers: IOM10003
(Rev.I)
29
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