
MAX100/200-OPERATION Rev200813
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3. INTRODUCTION
Overview: How the Foam System Works
The FoamPro AccuMax injection system is an electronically controlled, hydraulically driven, foam concentrate
proportioning system designed to provide the wide range of foam concentrate injection rates necessary for foam operations.
The FoamPro AccuMax system will accurately deliver from 0.1% to 10.0% foam concentrate.
The performance and accuracy of the foam system shall be in compliance to applicable sections of NFPA #1901
(mobile vehicle systems) or NFPA #20 (fixed systems). Please note: the installer shall be responsible for final compliance
of the assembled foam installation, setup, and testing to meet NFPA or 3rd party testing requirements.
The FoamPro AccuMax system is a flow-based proportioning system that measures water flow through specified
discharges or water manifold and injects the correct proportional amount of foam concentrate to maintain the desired
percentage. The basic system is comprised of the following five (5) assemblies for 1 to 15 foam line injectors and discharges:
a. Hydraulic System
: FoamPro shall furnish the hydraulic pump, hydraulic motor, and hydraulic controller shall be supplied
by Foam Pro. The hydraulic cooler and reservoir can be supplied by the final installer or Foam Pro.
b. Foam System:
FoamPro shall furnish foam line Injectors (FLI) for water manifold (single-point) or each discharge
(multi-point), low-flow assembly, Fury or Fusion foam displays, main foam flowmeter, foam pressure transducer, FRC
TankVision level display (or optional low-level sensor), and cabling for the foam system.
c. Electrical System:
FoamPro shall furnish displays and controls, electrical communication system, and cabling. The final
installer shall supply power supply fusing and wiring.
d. Foam Pump Components:
FoamPro shall furnish foam pump, relief valve, and foam pump inlet wye strainer.
e. Water Discharge Components:
FoamPro shall furnish water flowmeter & pressure transducer (single-point) or water
flowmeters and pressure transducers on each discharge (multi-point). Fusion and APEX systems have Elkhart electric
valves furnished by Foam Pro.
The hydraulic controller operates the hydraulic drive system to supply the proper amount of foam concentrate required
for the AccuMax operation and foam line controllers in use. A ‘wye’ strainer shall be installed before the foam pump to
protect the positive displacement foam pump from debris. A safety pressure relief valve shall be installed downstream of
the foam pump to recirculate foam to the suction side of the foam pump. This relief valve shall be supplied by FoamPro
and approved by the foam pump manufacturer. Hydraulic power to operate the foam pump shall be provided by a separate
hydraulic pump, in mobile systems shall be driven by the transmission mounted PTO and fixed systems by an electric
motor or diesel engine. The foam concentrate line (from the foam pump) shall have a pressure transducer to control the
hydraulic system.
The foam line controller (FLI) shall consist of foam flowmeter, foam control valve, foam injection check valve, and
a calibrate/inject valve. The AccuMax Fury or Fusion or Fusion/Apex displays communicate the proper information to
ensure the proper amount of concentrate is dispensed to the foam manifold or to the discharge that it controls.
The AccuMax II displays are in constant communication with hydraulic controller, foam line injector (FLI), water
pressure transducer(s), and water flowmeter(s) to determine the correct amount of foam concentrate required and to
control the hydraulic pump to provide the hydraulic flow to drive the foam pump to deliver the proper amount of foam
concentrate. Additionally, the AccuMax system monitors the foam flow through the master foam flowmeter from the
discharge of the foam pump. The AccuMax Fusion or Fury display menu allows the operator in “menu mode” to display
various functions and settings for foam system operator information.
Содержание FoamPro Accumax II Fury
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