Figure I.3.1
Terminal Q – Normally closed
Terminal R – Common
Terminal S – Normally open
** Also note that the relay is affected by the Energized/De-Energized setting in the CL1/CL2.
The maintenance relay has the same specifications as any of the relays available on the standard 14 pin
connector:
24 VDC 6 Amp Max – 240VAC 6 Amp Max
I.4 Z-Purge Enclosures with Vortex (A/C) Coolers
For your reference we have included the booklet for the Model YZ101 Purge Unit and the Operation & Safety
instructions for the Vortex cooler.
For more in-depth information you may reference NFPA 496 – Standard for Purged and Pressurized
Enclosures for Electrical Equipment.
Please follow the steps below to CONNECT THE PURGE SUPPLY TO THE CL1/CL2-purge enclosures.
WARNING: The Purge air (Instrument quality air or Inert Gas) intake MUST originate in a NON-HAZARDOUS
area.
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