Instruction Manual

Operation 6-19
6.8.3.1 Main Air Regulator and Gauge
The main air inlet provides regulated air pressure to the dispensing system from your facility air source.
You can adjust the main air pressure with the Main Air Regulator. The recommended pressure from the
facility air supply to the dispensing system is 85 to 90 psi (586 to 620 kPa).
To adjust the main air pressure:
1. Verify that the facility air supply is connected to the main air inlet.
2. Locate the Main Air Regulator at the rear of the dispensing system (
Figure 6-7).
TIP For accurate pressure adjustment, lower the pressure below the desired level and then
increase to the desired pressure.
3. Rotate the Main Air Regulator counterclockwise until the Main Air Gauge registers 0 psi.
4. Rotate it clockwise until the Main Air Gauge registers 85 to 90 psi (586 to 620 kPa).
! If the Main Air Gauge fails to register pressure, verify that the dispensing system is
connected to the facility air source.
" NOTE The regulator assembly is equipped with a relief valve to protect the system components.
Increasing the pressure above 95 psi (655 kPa) may trigger the relief valve. If so, reduce
the air pressure below 95 psi.
5. Monitor the Main Air Gauge to make sure that pressure builds at a steady rate. Watch for
dropping pressure indicating an air leak.
! If there is an air leak, identify the source, shut off the facility air, and fix the leak before
proceeding.
Item Description
1 Main Air Regulator
2 Main Air Gauge
3 Main Air Inlet
Figure 6-7 Adjusting Main Air Pressure
1
2
3