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-34
ROTARY GEAR PUMP
ELECTRONIC FOAM PROPORTIONING SYSTEM
Section
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: Installation
CONTROL UNIT
The control unit mounts in the operator
panel of the apparatus. The cutout
required in the operator panel is a 3-¾ inch
(95 mm) diameter hole. The display is
secured with four #10 socket head screws in
the four holes in the face (See figure 2-23 for
mounting dimensions). The display requires
7 inches (178 mm) minimum clearance from
the back of the operator panel to allow
proper connection of cables. Once the
control unit is mounted on the operator
panel, connect the 6 pin control cable from
the male distribution box connection (figure
2-24) to the 6 pin female connector on the
back of the control unit (figure 2-25). A
decal on the distribution box identifies each
cable connection (see figure 2-24).
NOTE:
Ensure that the panel where the
control unit is mounted has an
adequate ground. For stainless steel
and vinyl coated panels a ground strap
½ inch (12 mm) wide must be attached
from one of the four screws holding the
control unit in place to the frame of the
fire truck to ensure adequate grounding.
FLOWSENSOR CONNECTIONS
If a single Hale FoamMaster paddlewheel
type flowsensor is used, a cable is supplied
which connects from the 4 pin connector
(refer to figure 2-11) or pigtail on the sensor
to the male 4 pin connector on the control
unit (see figure 2-25).
FOAM DISCHARGE MULTIPLEXING
DISPLAY UNITS
See foam discharge multiplexing system
manual (P/N 029-0020-36-0) for multiple
Hale FoamMaster Flowsensor installations.
Figure 2-26 shows the connection of the
flowsensors, pressure transducers and
display unit with the control unit for
reference only.
NOTE:
When an inline current shunt
ammeter is installed on the apparatus or
the Hale FoamMaster is used with
Multiplexing Display Units with multiple
water flow meters it is necessary to install
a FoamMaster power filter kit (Hale P/N
546-1870-00-0) on the Hale FoamMaster
foam pump.
FOAM TANK LOW LEVEL SENSOR
INSTALLATION
The foam tank low tank level sensor(s) must
be installed and wired to monitor foam
concentrate level. Mount a low tank level
Figure 2-23. Control Unit Mounting Dimensions
3.75 IN. (95 MM)
DIA. THRU HOLE
0.22 IN. (6 MM)
DIA. THRU HOLE
(4 PLACES)
0.63 IN.
(16 MM)
4.28 IN.
(109 MM)
1.75 IN.
(44 MM)
1.75 IN.
(44 MM)
3.50 IN.
(89 MM)
4.28 IN.
(109 MM)
3.50 IN.
(89 MM)
7.00 IN. (178 MM)
CLEARANCE BEHIND OPERATOR PANEL
OPERATOR
PANEL