Purging The System; Purity Adjustment - Branick 475 Installation, Operation & Repair Parts Information

PURGING THE SYSTEM (intial setup only) ______________________________________
Now you are ready to fill the internal 30 gallon tank with nitrogen. There may be "regular" air in the tank and this
must be purged to obtain the proper nitrogen purity in the tank.
1. On the particulate filter, rotate the Air Inlet Valve to the ON position (vertical).
2. On the digital inflator, flip the Power On/Off button to the ON position. The inflator will go through its
status check and calibration procedure. Air will now begin to flow through the nitrogen membrane and
begin to fill the internal 30 gallon tank.
NOTE: This nitrogen system is equipped with an automatic air supply shut-off. When the tank reaches
the preset pressure, the air feed will automatically shut-off. This is done to prevent unnecessary
use of the air compressor. When approximately 15 psi is used from the nitrogen storage tank, the
automatic shut-off will open and begin filling the storage tank again.
3. Let the tank pressure build until the system automatically shuts-off the air supply.
4. Rotate the Air Inlet Valve to the OFF position (horizontal).
5. Open the Auxiliary Valve located on the back of the unit.
6. When the tank is empty (Tank Pressure Gauge reads 0), close the Auxiliary Valve.
7. Rotate the Air Inlet Valve to the ON position and refill the tank to full pressure.
8. Use a Nitrogen Analyzer to check the purity in the tank at the Nitrogen Sampling Port. If the purity is 95%
or better, you're ready to inflate tires with nitrogen. If purity is not at least 95%, repeat steps 4 – 8.
PURITY ADJUSTMENT INSTRUCTIONS ________________________________________
Your nitrogen generator is equipped with a purity adjustment dial. Nitrogen purity is factory set to a minimum of
95%. Maximum travel of the dial will vary by model but will be between 180° and 270°.
NOTE: Increasing nitrogen purity will decrease your nitrogen flow which can increase tire fill times.
To increase nitrogen purity, rotate the purity adjustment dial clockwise. To decrease nitrogen purity, rotate the
purity adjustment dial counter-clockwise.
DIGITAL INFLATOR OPERATING INSTRUCTIONS ________________________________
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2
1
5
1 Increase Key
2 Decrease Key
3 Top-Off Key
4 Nitrogen Purge Cycle Key
Power "On/Off" Button
5
Fill Control Valve (grey handle) – not shown
6
6
3
4