21
Installation and Operation Manual
System 2000
If you are still having difficulty priming the foam pump in
your FoamPro system, do the following:
• Make sure foam concentrate tank shut-off valve is
open.
• Check to make sure there are no restrictions from
the concentrate tank to the inlet of the foam pump.
• Check to make sure there are no leaks in the
plumbing where air can enter the pump.
Wet the foam pump to speed priming operations using
the following procedures.
• Remove one of the valve caps from the head of the
pump and remove the check valve under it (See
Figure 23).
• Pour a small amount of concentrate into the valve
opening to fill up the pumping chamber in the pump
head.
• Replace the check valve and cap and tighten
securely. Run the pump again and the pump
should prime right away.
Proceed to calibration section as the system must
be calibrated.
• Put the system into “simulated flow mode” by
selecting the “FLOW” display and depressing
“RESET” (both up and down buttons
simultaneously) (See Figure 22.) Increase
simulated flow by pressing button to permit
easier priming (above 150). Display will show
“ ” to indicate the simulated flow.
• Engage the FoamPro system by pressing the red
“FOAM” button.
• Foam concentrate should begin flowing into the
container. If concentrate is not being pumped,
check first to make sure the foam pump is running.
If the pump is running, but no concentrate is being
delivered, then the pump is most likely not primed
completely. If the pump does not prime within
20-30 seconds, disengage the system by pressing
the red “FOAM” button.
• If the system has been installed properly, foam
concentrate should flow readily to the pump.
• Once foam flow is established, turn the system
off and turn the CAL/INJECT valve back to the
inject position.
Figure 23. Foam Pump Manual Priming
Figure 22. Simulated Flow Indication
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