Open discharge valve(s), Open cafs discharge, Check foamlogix and air flow readings – Hale CAFSPro User Manual

Page 44: Duplex master pressure gauge, Hale foamlogix control unit

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Operation

44

CAFSPro User Operation Manual

p/n: 029-0020-75-0

Note: A direct tank fill separates the pump intake from the positive supply pres-
sures and allows the pump and CAFS to operate independently of the high pres-
sure supply for easier operations. Hale offers an automatic direct tank fill that
allows continuous operation without operator action.

Open Discharge Valve(s)

Open the discharge valve(s) to charge the discharge line(s).

Open CAFS Discharge

Slowly open the nozzle on the CAFS hose line to begin compressed air
foam fire operation.

The LEDs on the FoamLogix and CAFSPro control units turn ON to indicate
foam concentrate and air injection.

Check FoamLogix and Air Flow Readings

1.

With the nozzle open the system discharges compressed air foam. The
FoamLogix display shows the foam solution flow rate in the CAFS capa-
ble discharge(s).

2.

The CAFSPro display shows the air flow rate in SCFM.

3.

The duplex master pressure gauge needles (RED and BLACK) do not
necessarily match when CAFS discharge(s) are open.

4.

Typically, air pressure is less than the water pressure when flowing. For
example, when the indicator is at the full WET 0.5% position, the follow-
ing readings are shown on the various displays:

Duplex Master Pressure Gauge

Water, black needle ..........................................100 PSIG (7 BAR)

Air, red needle ....................................................85 PSIG (6 BAR)

Note: With the CAFS discharge closed (or nozzle shut), the two needles (air and
water) on the master duplex pressure gauge should match, within 5 PSI (0.4
BAR).

Hale FoamLogix Control Unit

Water Flow ..................................................... 95 GPM (360 LPM)

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