SECTION
I INSTALLATION
7
1.0 DPU, SWITCH,
DISPLAY CABLE
INSTALLATION
1.0.1 DPU MOUNTING
The unit should not
be mounted in the engine compartment,
but
v
installation and removal.
NOTE: lf
you
have a'Fuel
Level System'
you
may
want
to calibrate it before mounting the DPU.
(See
section
on
FUEL LEVEL SYSTEM OPERATION.)
1.0.2
DPU WIRING
All
power, ground
and transducer
wires
(except
fuel
level
transducers
connect)
to the DPU terminal blocks. See each respective
installation
section for
conneclions.
=
DO NOT: connect J4-16 to the same aircraft circuit
breaker as
J4-1 5.
-
DO NOT: allow wire
insulation
or foreign objects into the
position
being connected to.
-
DO NOT: over tighten the set screw
onto
the wire. lnstead,
the wire
needs
to be
securely
held, but not crushed
to the
point
of separation. Test the wire for security after tightening.
The
use of a
'Jewelers
Screwdrive/ will
provide
enough
\--l
torque for the
job.
3
DO
NOT: allow bare wires touch the metal
case
or adjacent
leads.
=
DO NOT: bend the
wires where they exit the
terminal block
position,
instead, form a
radius
away from the terminal
block
position.
::)
DO NOT: allow
static
electricity to contact any terminal.
Always
discharge
yourself
to
ground
first
!
DPU
'J4'TO
POWER CONNECTIONS
(Use
16 AWG
wire)
All other
DPU
connections
are described in each system
installation
section.
50t0002
REv F
VMI(}OO
OWNERS MANUAL
DPU
TERM.
WIRE
COLOR
CONNECT
TO
DESCRIPTION
J4-14
BLK GND BUS ACFT GROUND
BUS
J4-15
RED 5 AMP
BRKR
ACFT POWER
DIST SYSTEM
J4-16 WHT
LITE
CNTRL ACFT
PANEL
DIMMER SYSTEM
CASE
BLK GND BUS
ACFT
GROUND
BUS
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