ΙΙ
-40
ROTARY GEAR PUMP
ELECTRONIC FOAM PROPORTIONING SYSTEM
Section
ΙΙ
ΙΙΙΙ
ΙΙ
ΙΙ
: Installation
two wires exit the heat shrink tubing
pinch the tubing while heating the
tubing to make sure the adhesive seals
around both wires.
CAUTION:
Use the silicone sealer
provided with the Hale FoamMaster
system to insulate the terminal strip
connection screws and prevent
corrosion.
2.
Tie one wire from each low level
switch together as a common lead.
Connect this common lead to the
center screw on the terminal block on
the A-B switch box.
3. Connect the lead from Tank A to the
terminal labeled A TANK on the switch
box and connect the wire from Tank B to
the terminal labeled B TANK.
4. Seal the terminal strip connections
using the silicone sealer provided.
GROUND AND PRIMARY POWER
CONNECTIONS
CAUTION:
Connect the primary positive
lead from the terminal block to the
master switch terminal or relay terminal
using minimum 4 AWG type SGX (SAE
J1127) chemical resistant battery cable
and protect with wire loom.
CAUTION:
Prevent corrosion of power
and ground connections by sealing
these connections with silicone sealant
provided.
GROUND CONNECTION
Be sure the Hale FoamMaster system is
grounded to the chassis. Use a short length
of wide flat ground strap at least 1-¼ inches
(32 mm) wide and less than 18 inches (457
mm) long to reduce the potential of RFI
emitted by this connection. A stud labeled
NEG (—)
is located on the distribution box to
attach the chassis ground strap to the Hale
FoamMaster system. (See figure 2-24)
When making the ground strap connections
make sure lugs are attached to the strap
ends for trouble free connections.
When the length of the ground strap
exceeds 18 inches (457 mm) use a wider
strap or a double thickness strap.
CAUTION: DO NOT
connect the main
power lead to small leads that are
supplying some other device such as a
light bar or siren. The Hale FoamMaster
Model 3.3 and Model 5.0 require 60 AMP
minimum current. The Hale FoamMaster
Model 3.0 requires 40 AMP minimum
current.
PRIMARY POWER SUPPLY
CONNECTION
Make sure adequate switched electrical
power from the b terminal to the
battery connection stud on the distribution
box (see figure 2-24) is provided. Use 4
AWG minimum type SGX (SAE J1127)
battery cable directly to the battery,
battery switch or solenoids for cable runs up
to 6 feet (1.8 meters) long. Longer wire runs
may require larger battery cable for proper
operation. DO NOT connect power to the
same connection as the pump primer. The
following table provides recommended
cable size for various lengths of cable run.
Figure 2-31. Low Tank Sensor A-B
Switchbox Connections
TANK B
TERMINAL
COMMON
TERMINAL
TANK A
TERMINAL
A-B SWITCHBOX MOUNTED ON
FOAM PUMP
