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Custom Fire Apparatus, Inc. <br />Incorporated within the control display shall be a micro -processor that receives the input from the <br />flowmeter, while also monitoring foam concentrate pump output, comparing values to ensure that the <br />operator preset proportional amount of foam concentrate is injected into the discharge side of the fire <br />PUMP. <br />A paddle wheel type flowmeter shall be installed in the discharge line to the specified "foam capable" <br />discharges. <br />The digital computer control display shall enable the pump operator to perform the following control and <br />operation functions for the foam proportioning system: <br />1. Provide push-button control for foam proportioning rates from 0.1% to 9.9% in 0.1% increments. <br />2. Show current gallon per minute water flow rate. <br />3. Show total gallons of water discharged, during and after foam operations are completed. <br />4. Show total gallons of foam concentrate consumed. <br />5. Simulate flow rates for manual operation. <br />6. Perform set-up and diagnostic functions for the computer control microprocessor. <br />7. Flash a "low concentrate" warning when the foam concentrate tank(s) run low. <br />8. Flash a "no concentrate" warning and shut the foam concentrate off, preventing damage to the pump, <br />should the foam tank go empty. <br />9. Foam Strainer, in suction line, removable <br />A 12-volt electric motor driven positive displacement foam concentrate pump, rated up to 2.6 GPM, with <br />operating pressures up to 250 psi (maximum psi of 400) shall be installed in a suitable location near the <br />apparatus pump hose. <br />A pump motor electric driver (mounted to the base of the pump) shall receive signals from the computer <br />control display, and power the .5 horsepower electric motor directly coupled to the concentrate pump in a <br />variable speed duty cycle to ensure that the correct proportion of concentrate preset by the pump operator <br />is injected into the fire stream. <br />The motor driven foam pump system shall be mounted to a fabricated stainless steel platform, <br />strategically located within the fire pump module, such that the pump is below the level of the foam cell. <br />MASTER FOAM MANIFOLD <br />07/26/22 <br />-99- <br />