Elkhart Brass 2900E Series - Manual (Page 10)

9
B. Valve Controller and Position Indicator Module:
The 81384001 valve controller and position indicator module is to be installed in the
pump control panel. The panel cutout template is shown on the layout drawing. The
module is secured to the pump panel with four split lock washers and four #6-32 stainless
steel small pattern nuts (1/4” socket driver), which are provided with the module. The
pressure gage for each discharge valve should be installed above the 81384001 module
controlling that valve. A harness is included with each control module and is to be
connected to the back of the module. This harness contains two male connectors; one for
supply power, and one that is to be connected to the valve via an intermediate harness.
Power Source:
It is recommended that power to all 81384001 valve control modules be controlled by a
single switch/relay combination so that power can be shut off unless the apparatus is in
pumping mode. Automatic reset circuit breakers must be installed between the power
source and the 81384001 modules. A breaker rating of 10 amps is recommended, and
two modules may be powered through a single breaker. Each 81384001 module includes
an input power connector with red and black wire leads as shown in electrical layout
drawing. The leads have crimp connectors with heat shrink tubing. Strip about 5/16” of
insulation from the power source wire and insert it into the crimp connector of the red
lead on the supplied power connector. Secure the wire lead in the crimp connector with a
suitable crimper. Similarly, strip and crimp the ground wire to the black lead on the
supplied power connector (Chassis ground is not recommended). After crimping, use a
heat gun or another heat source to shrink the plastic sleeves until the adhesive melts and
flows to seal the connections.
C. Interconnecting Harnesses:
Interconnecting harnesses are provided in several lengths to connect the 81384001 valve
controller and position indicator module and the valve assembly. See Layout Drawing
for a complete list of harness lengths. These harnesses should be carefully secured to the
vehicle frame or other structural members to protect them from abrasion due to vibration.
Also, they must not be installed where they could be exposed to temperatures over 160°F.
The harnesses must be supported near all connections.
D. Primary/Secondary Controller Option:
The option exists to control a single valve with two controllers. The controllers may be
located in different locations on a truck. The dual controller option functions with the use
of a primary controller that is connected to the valve via a power/sensor harness. The
secondary controller does not utilize a power/sensor harness; rather it is connected to the
primary controller by a primary/secondary harness. The secondary harness sends a signal
to the primary controller that controls the valve. The primary controller will override the
secondary controller. Refer to the Primary/Secondary Layout Drawing for wiring
diagram and harness length options. Primary and Secondary controllers must share a
common ground (Chassis ground is not recommended).
NOTE: The 81384001 module is only sealed from the environment when all harnesses
are plugged in.