HALE SmartFOAM, Описание, установка и руководство по эксплуатации

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Page 38
SmartFOAM
If panel mounted FS series strainers are installed, mount
the strainer in the foam concentrate hose that supplies
concentrate to the ADT, MDT II or MST. The FS series
strainer may also be mounted in the outlet hose of the
MDT II or MST.
IMPORTANT!
WHEN DETERMINING THE STRAINER LOCATION
KEEP IN MIND THE REQUIREMENT FOR GRAVITY
FEED OF FOAM CONCENTRATE TO THE FOAM PUMP
THROUGH THE STRAINER AND AVOID AIR TRAPS IN
THE HOSES. ALSO, CLEARANCE MUST BE PRO-
VIDED TO ALLOW REMOVAL OF THE BOWL ASSEM-
BLY TO CLEAN THE STAINLESS STEEL MESH, TO
MAKE HOSE CONNECTIONS TO THE STRAINER AND
FOR OPERATION OF THE SERVICE VALVE.
The installer must provide a strainer service isolation valve
in the foam concentrate hose to prevent spillage during
service. An MST or MDT II can serve this purpose.
CONTROL UNIT AND INSTRUCTION /
SYSTEM DIAGRAM PLACARD
Determine a location on the operator panel of the appa-
ratus for the control unit and instruction/ system diagram
placard, if provided. These components must be located
at the main pump operator position in close proximity to
each other. Consideration must be given for routing the
control cable from the control unit to the motor controller
on the foam pump and motor assembly. If necessary, order
longer or shorter cable assemblies to suit the location de-
mands.
INSTALLER SUPPLIED COMPONENTS
Due to the many differences in apparatus configurations
and design requirements the Hale SmartFOAM system in-
staller must supply components such as:
❑
Mounting brackets
❑
Piping
❑ Hoses
❑
Fittings
❑
Electrical wiring
❑
Foam tank(s)
The following guidelines are recommendations for selec-
tion of additional components for a complete system instal-
lation. These recommendations reflect materials and com-
ponents that are tested extensively with Hale SmartFOAM
systems and provide proven reliable performance.
Always obviously/uniquely label the wiring for the 6.5 24V
portion of the foam system when installed on a 12V appa-
ratus.
FOAM CONCENTRATE SUCTION HOSE
SmartFOAM 2.1A and 1.7 AHP Foam systems
These systems are provided with 15 ft (4.6 m) of 1/2-in
(13 mm) ID reinforced PVC foam concentrate suction hose.
The system installer may need to supply additional fittings
and hose from the foam tank to the inlet of the foam pump.
All components selected transfer foam concentrate; there-
fore they must be compatible with the foam concentrates be-
ing used in the system.
SmartFOAM 3.3, 5.0, and 6.5 Foam systems
Hoses for Class “A” foam concentrates have minimum 3/4-in
(19 mm) inside diameter. Hoses for Class “B” foam concen-
trates must have a minimum 1-in (25.4 mm) inside diameter
due to higher viscosity of the concentrate.
Note: Certain types of Class “B” AFFF-ARC or ATC concen-
trates require a 1-1/4
-in or 1-1/2 -in (32 or 38 mm) ID foam
concentrate supply line.
Hoses for the foam concentrate suction that are not subject
to high pressure, i.e. flushing water or foam concentrate dis-
charge, must have a rating of 23 inHg (584 mm) vacuum
and 50 PSI (3.5 BAR) pressure or greater.
Note: NFPA requires that foam concentrate suction hose be
clear to observe foam concentrate flow during foam pump
operation.
Recommended components
Hose: PVC, Kuriyama Kuri-Tec K3130 or K7130 series.
Fittings: Hose Barb Type; Brass, Stainless Steel or Nylon.
Foam concentrate suction hose subjected to flushing water
pressure must be rated for 23 inHg (584 mm) vacuum and
the maximum discharge pressure of the fire pump (500 PSI
[34 BAR] minimum). These hoses include the hose from the
outlet of the MDT II or MST to the foam pump inlet.
Recommended components
Hose: Aeroquip 2580 series or Equivalent Reinforced
Hydraulic Hose.
Fittings: Brass or Stainless Steel Hose End Crimp or Reus-
able Type (Aeroquip 412 series or Equivalent).
A foam tank shut-off valve and drain valve should be pro-
vided in the foam tank suction hose to allow strainer service,
tank drainage and easier priming.
These components are subject to the same material charac-
teristics and pressure ratings as stated above. When the In-
line strainer/valve assembly option is installed the shut-off
valve is included. A separate valve is not required.