17
GT ULTRA ZERO AIR GENERATOR
USER MANUAL
www.vicidbs.com
Version 1.03.0000
7.3. NORMAL OPERATION
When the system is in operation mode, the green “System Ready” panel LED is illuminated and the outlet
valve is open, supplying continuous Ultra Zero Air. During operation mode, the microcontroller continuously
monitors the inputs. If a fault occurs, the system will enter into a particular fault state if it is not corrected
within the specified time.
Verify that:
• “POWER” green LED is on
• “READY” green LED is on
7.4. STARTUP TROUBLESHOOTING AND SYSTEM FAULTS
If there are any improper conditions detected by the control board, the unit will not come out of the warm up
cycle. Instead, fault conditions are indicated by the panel LEDs.
Any of the following conditions will prevent the unit from going to operation mode:
• If catalyst heater temperature is still below the minimum threshold, then a low temperature fault is
indicated by the red “Check System” LED.
• If the catalyst has expired, the system does not start the warm-up cycle. The processor immediately
flashes the red “Check System” LED. If the catalyst is within 2 months of expiring, then the red “Check
System” LED will flash, but the system will still start to operate.
• If a low or high inlet pressure condition exists, then a fault is indicated and the outlet valve will remain
closed. The yellow “Warm up / Check Pressure” panel LED is illuminated steadily.
• If the dryer valve is not switching properly, then a fault is indicated and the outlet valve will remain closed.
The red “Check System” LED is illuminated steadily.
• During normal operation, if any of the following conditions occur, the control board will indicate a fault or
warning and close the outlet.
7.4.1. Inlet Pressure Low
Low inlet pressure warnings are indicated by a steady yellow “Check Pressure” panel LED on the cabinet. If
pressure is not restored to a minimum of 4.5 bar within three minutes, the control board automatically closes
the outlet valve, shutting off the Ultra Zero Air supply from the generator. The control board will continue to
monitor the inlet pressure, and will automatically restore the unit to normal operating mode when pressure is
within range.
