2. Confirm protected enclosure door(s) is sealed and Purge air supply is on.
3. Activate alarm system (if utilized), then adjust the Enclosure Pressure Control Regulator
unit until the Enclosure Pressure Gauge reads a minimum of 0.5” on the scale (Refer to
Figure below).
IF UNABLE TO REACH 0.5” ON GAUGE VERIFY THAT THE AIR SUPPLY IS ACTIVE, AND THE DOOR IS LATCHED
PROPERLY, THEN CHECK THE UNIT FOR LEAKS.
DO NOT PROCEED UNLESS A MINIMUM OF 0.5” IS READ ON THE SCALE WHILE THE VORTEX COOLER IS NOT
ACTIVE.
4. Next, turn the Enclosure Pressure Control Regulator 1 FULL turn clockwise and allow
Purge air to run for 2 Minutes (Minimum Purge Time) before continuing (Class I
applications).
CAUTION: Make sure the pressure remains in the SAFE range the entire time the unit is purging. It is
acceptable if Vortex cooler activates while unit is purging as long as needle remains above 0.5” in the SAFE
area on pressure gauge.
5. Once the required minimum time has elapsed AND the Enclosure Pressure reading is
still in the SAFE zone you may safely power on the unit.
WARNING: IMMEDIATELY remove power upon loss of SAFE pressure.
I.5 New Light Option
(Default: OFF)
Customers with the side panel mounted light option revision B or higher require CL1/CL2 software version
15.11 or higher and must enable this option in the Configuration menu for proper light operation. All previous
units without a revision label on the light option side panel or those with Revision A must have this option
disabled.
To enable/disable this option:
• From the main menu go to the Service Menu and enter the appropriate password
• From the Service Menu select Configuration and enter the appropriate key value – Contact DOD
service for assistance if needed.
• On the Configuration menu scroll down and select Options
• On the Options menu scroll and select “New Light Option”
• Change the value from 0 to 1 to enable the new light option.
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