FRC AUTOFOAM FS15 User manual

FS15-60-120 Rev0204
1
AUTOMATIC
AROUND-THE-PUMP
FOAM SYSTEM
MODEL: FS15, FS60, FS120
FIRE RESEARCH CORPORATION
www.fireresearch.com
26 Southern Blvd., Nesconset, NY11767
TEL ( 631 ) 724-8888 FAX ( 631 ) 360-9727 TOLL FREE 1-800-645-0074

FS15-60-120 Rev0204
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CONTENTS Table of Contents
CONTENTS ............................................................................................................... 2
List of Tables ......................................................................................................... 2
List of Figures ....................................................................................................... 2
INTRODUCTION ...................................................................................................... 3
Overview ............................................................................................................... 3
Features ................................................................................................................. 3
Specifications ........................................................................................................ 4
GENERAL DESCRIPTION....................................................................................... 6
Components........................................................................................................... 6
Controls and Indicators ......................................................................................... 8
INSTALLATION......................................................................................................10
Install Control Module ........................................................................................ 10
Install Metering Valve Assembly and Eductor....................................................10
Install Flow Sensor(s) ......................................................................................... 12
Install Summing Device ......................................................................................18
Install Cables ....................................................................................................... 18
THEORY OF OPERATION ..................................................................................... 20
OPERATION ............................................................................................................22
Static Operational Check.....................................................................................22
Pump Intake and Discharge Pressure Requirements...........................................23
Operational Check............................................................................................... 24
CALIBRATION........................................................................................................ 28
TROUBLESHOOTING TIPS .................................................................................. 30
MAINTENANCE.....................................................................................................31
Flushing the System ............................................................................................31
Cleaning the Paddlewheel Sensors ..................................................................... 31
List of Tables
Table 1. Pump Pressure Requirements ....................................................................23
List of Figures
Figure 1. Plumbing Schematic ..................................................................................7
Figure 2. Controls and Indicators.............................................................................. 9
Figure 3. Control Module Dimensions ................................................................... 11
Figure 4. Meteing Valve Assembly and Eductor Installation ................................. 11
Figure 5. Flow Sensor Location Guidelines............................................................ 13
Figure 6. Saddle Clamp Installation........................................................................ 15
Figure 7. Weldment Installation ..............................................................................17
Figure 8. Cables....................................................................................................... 19
Figure 9. Sample Displays....................................................................................... 25
Figure 10. Summing Device.....................................................................................29
Figure 11. Drawings ................................................................................................. 32

FS15-60-120 Rev0204
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INTRODUCTION
Overview
The AutoFoam is an around-the-pump foam proportioning metering system. It
will automatically maintain a selected foam percent mixture regardless of water flow
fluctuations.The AutoFoamis microprocessorcontrolled and isautomatic in operation.
The AutoFoam has easy to use controls and indicators. It becomes operational at
the push of a single button. Push buttons select the foam proportioning percent. An
uppermultifunction displayshows the selectedfoam %, foam flow,and thetotal gallons
of foam used. A lower multifunction display shows the discharge flow rate and the
total gallons of water used. The operator can override automatic control by using the
manual override buttons to open or close the foam metering valve.
Around-the-pump proportioning systems operate with an eductor installed
between the water pump intake and pump discharge. A small flow of water from the
pump discharge passes through the eductor and creates a vacuum that draws foam
concentrate into the eductor.
The principle behind the AutoFoam system is straight forward. The flow rate on
the discharge side of the pump is measured.Ametering valve is opened to allow foam
concentrate to flow and this flow rate is measured. The program compares the flow
rates and adjusts the metering valve to provide the correct amount of foam concentrate.
The foam concentrate is injected into the intake side of the pump by a venturi eductor
and mixed with water. This produces the correct foam proportioning percent at the
pump discharge. The AutoFoam constantly monitors foam and water flow and adjusts
the metering valve to ensure proper foam proportioning.
Features
Complete Automatic Foam Proportioning
Push Button Control
Flow Totaling for Both Foam and Water
Powers-Up at the Previous Proportioning Percent
ManualOverride
Multiple Discharge Sensors (Optional)

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Specifications
Power
Supply Voltage: 12 VDC Nominal (24VDC SystemAvailable)
Supply Current: 1.5Amp Maximum
Foam Concentrate Induction
FS120: 2 - 120 GPM
FS60: 0.5 - 60 GPM
FS15: 0.5 - 15 GPM
Maximum Discharge Flow Rate
FS120: 2200 GPM
FS60: 2200 GPM
FS15: 2200 GPM
Proportioning Ratio
FS120: 1 - 10 %
FS60: 0.5 - 6 %
FS15: 0.5 - 6 %
Control Module
Power: 12VDC Nominal
Logic: 8-BIT Microcontroller
Housing: PaintedAluminum
Weight: 2 LBS
Environmental: Totally Sealed Enclosure with O-Rings
Temp Rating: 70° C
Connectors: Deutsch, Industrially Sealed
Discharge Flow Sensors
Type: Paddlewheel Type with Brass Housing for
Saddle Clamp or Weldment Mount (Stainless Steel
Housing Optional)
SensorMaterial: Acetal (Delrin) with Stainless Steel (316) Shaft

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Metering Valve Assembly
Valve: Variable Orifice Linear Flow, With Position Sensing
Flow Sensors: Paddlewheel Type
Weight: 24 LBS
OverallLength: 16.25"
OverallHeight: 10"
Couplings
FS120: 2.0"
FS60: 1.5"
FS15: 1.5"
Eductor
Material: Stainless Steel (304)
Weight: 4.2 LBS
Length
FS120: 20"
FS60: 12.5"
FS15: 12.5"
Water Flow Rate Through Eductor @ 150 PSI
FS120: 205 GPM
FS60: 130 GPM
FS15: 50 GPM
Couplings: Victaulic (Grooved Type)
FS120: Water Inlet 2.0", Foam Inlet 2.0", Discharge 2.0"
FS60: Water Inlet 1.5", Foam Inlet 1.5", Discharge 1.5"
FS15: Water Inlet 1.5", Foam Inlet 1.5", Discharge 1.5"