Specifications

Proposal Number PSDF #P09-0004
Provide push-button ON/OFF control of foam proportioning system.
Provide push-button control of foam proportioning rates from 0.1% to 10.0% (1.0% on a 2.1A and 3.3
systems), in 0.1% increments.
Show real time flow rate of water or foam solution.
Show total volume of water or foam solution discharged during and after foam operations.
Show foam concentrate injection rate.
Show total amount of foam concentrate consumed.
Permit resetting of totalized values for water and foam concentrate.
Simulate water flow rates for manual operation, calibration and testing of foam system.
Enable system setup and full range system diagnostic functions.
Indicate on LED bargraph foam concentrate is being injected and the foam system capacity.
Indicate on LED bargraph when system capacity is not within design parameters.
Store independent default values for Class A foam concentrate injection.
Flash a “low concentrate” warning when the foam concentrate tank runs low.
Flash a “no concentrate” warning and shut the system off when the foam tank is empty.
Flash a "low battery” warning when battery voltage is low enough to affect system operation.
Flash a "hot" warning when system is running hot due to low voltage or radiant heat.
A distribution box shall be attached to the base plate to provide ease of installation. The distribution box
shall be sealed to a NEMA 4X or equal rating to permit installation in the pump compartment. Foam
concentrate flow feedback shall be provided to the control unit through the distribution box by a sensor
mounted in the foam pump body. Rotors in the foam discharge side of the foam pump shall provide the
targets to pulse the sensor to generate a feedback signal.
The distribution box shall receive 12 volt direct current power from the apparatus electrical system as the
only source of power to operate the system and power component sensors. Control power shall be
distributed to the control unit, flow meter sensor and foam concentrate feedback sensor through a conductor
in the 100% electrically shielded cable sets provided by the foam proportioner manufacturer. The
microprocessor in the control unit shall process input signals from the flow meter sensor and foam feedback
sensor to determine the proper duty cycle for the electric motor to run. The distribution box shall provide
power to the electric motor, based on signals received from the control unit, at a variable rate to ensure that
the correct proportion of foam concentrate, preset by the pump operator on the control unit, is injected into
the water pump discharge stream. The distribution box shall have a main power control switch and over
current protection for the foam proportioning system. All primary electrical wires for the foam concentrate
system shall be type SXL or GXL (SAE J1128) per NFPA requirements. Electrical connections shall be
made using heavy duty 5/16 inch diameter studs and nuts.
HEAT EXCHANGER DISCHARGE
A gated discharge line shall be installed to provide water from the fire pump to the chassis supplied heat
exchanger to assist in engine cooling during pumping operations. The heat exchanger line shall be controlled
at the pump operator's panel with a Class 1 valve.
100' FOUR-SECTION REAR-MOUNT PLATFORM SPECIFICATIONS
Platform Design and Construction
The minimum of a 100 foot four-section, steel or aluminum, aerial platform has a minimum height of 100
feet at the top of the platform handrail at 75 degrees elevation. The horizontal reach from the outside edge of
the platform to the center of the turntable is 97 feet.
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