Foam concentrate tank(s), Figure 2-1. recommended relay wiring schematic, Ιι -8 – Hale 5.0 FoamLogix User Manual
Page 38
ΙΙ
-8
ROTARY GEAR PUMP
ELECTRONIC FOAM PROPORTIONING SYSTEM
Section
II
: Installation
FoamLogix when the main apparatus
electrical system is energized and the pump
is in gear. Use of a solenoid with a 200 AMP
peak, 100 AMP continuous rating is
recommended. Figure 2-1 shows the
recommended wiring of this relay.
With Hale FoamLogix Model 5.0 or Model
3.3, cable lengths up to 6 feet (1.8 meters)
require minimum 4 AWG type SGX (SAE
J1127) battery cable. Use solder lugs on
cable ends with a 5/16 inch (8 mm)
diameter hole. Refer to the following table
for the recommended battery cable size.
When planning cable runs make sure the
primary wires are routed by the shortest
most direct route.
S
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Z
I
S
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B
A
C
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8
.
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1
A braided flat ground strap connected to
the apparatus chassis is recommended for
the ground connection to limit the RFI/EMI
interference encountered with radios,
computers or other sensitive electronic
equipment. The ground strap should be a
minimum of 1-¼ inches (32 mm) wide and
be no longer than 18 inches (457 mm). The
ground strap must have soldered flat lug
ends with 5/16 inch (8 mm) diameter holes.
If the ground strap length exceeds 18
inches (457 mm), a wider ground strap
should be used or use a double thickness of
1-¼ inches (32 mm) wide ground strap.
When making the ground strap connection
make sure the connection is made to the
chassis. Use minimum 5/16 inch (8 mm)
diameter bolt or mounting stud for this
connection.
Make sure the ground is attached directly
to the chassis frame and not to the
apparatus body work. Before making
ground connection remove all paint,
grease and coatings from the connection
area. After making connection seal against
corrosion. When a flat ground strap is not
available use a battery cable one size
larger than the power cable used.
NOTE: When an inline current shunt
ammeter is installed on the apparatus it is
necessary to install a power filter kit (Hale P/
N 546-1870-00-0) on the Hale FoamLogix
foam pump.
FOAM CONCENTRATE TANK(s)
Foam concentrate tank(s) must be supplied
to suit the capacity required for the
apparatus application. The tank(s) must
meet NFPA minimum standards for their
design capacity, including filler size, vapor
pressure venting, baffling and drain
facilities. The following table lists
recommended foam tank capacities for
the different Hale FoamLogix models based
on NFPA requirements for flammable liquid
(Class B) fire suppression.
R
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T
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A
M
M
A
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9
7
3
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1
3
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3
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6
6
Figure 2-1. Recommended Relay Wiring
Schematic