For Racing Type Control:

Facing the control, with the word BOW at the top, turn the control over to the to the right (or left) and inspect the control to insure the wiring is connected as follows:

• The blue wire is connected to the top two terminals

• The red wire is connected to the two left terminals

• The yellow wire is connected to the two bottom terminals

• The green wire is connected to the two right terminals

THE WIRING CONNECTIONS MUST NOT BE REVERSED

FAILURE TO COMPLY WITH POINTS 1 AND 2 WILL CAUSE THE AUTO TAB CONTROL TO FUNCTION IMPROPERLY

If you have any questions regarding points 1 and 2 contact Bennett Marine by E-mail Trimtabs@earthlink.com or call Bennett Marine Client Services at (954) 427-1400 (8:00 am - 5:00pm Eastern time, Monday through Friday).

Boat Leveler Insta-Trim Conversion:

The Auto Tab Control installation instructions are based on Bennett Trim Tab wire colors. If you are installing the Auto Tab Control on a Boat Leveler system, the wire color conversion is as follows:

Bennett RED wire = Boat Leveler GREEN wire

Bennett GREEN wire = Boat Leveler WHITE wire

Bennett Blue wire = Boat Leveler RED wire

Bennett YELLOW wire = Boat Leveler YELLOW wire

Step 2. MOUNTING THE ATTITUDE SENSOR

Note:  The Attitude Sensor has a 20' Cable (extension cables are available). This cable must reach from the installation point of the Attitude Sensor to the area under the instrument panel where the Central Processing Unit (CPU) and ATC Module will be installed.

Sensor Location - The sensor provides accurate readings regardless of mounting location.  It is not generally recommended that the sensor be mounted as high as a flying bridge or tower, (most normal helm locations are fine). It is not necessary to mount the Attitude Sensor on a completely level surface, as setting the zero point will account for any off-level mounting. However, do not mount the Attitude Sensor at a severe angle or upside down.

The Attitude Sensor should not be mounted directly on top of a metal surface.  If you must mount the Attitude Sensor on a metal surface, make sure you place a piece of wood (at least 1/2" thick) between the Attitude Sensor and the metal surface.

Installation: Using the (2) #10 x 1" stainless steel mounting screws, secure the Attitude Sensor to a horizontal surface. The arrow on top of the Attitude Sensor must be pointed forward, not angled off to the side (see Figure 1).

Run the Attitude Sensor cable to the area underneath the helm station where the CPU and ATC module will be mounted.

Step 3. MOUNTING THE CPU AND ATC MODULE

Note: Mount the CPU and ATC Module to a flat surface under the helm station.  This surface can be either horizontal or vertical, but must be flat to assure proper connection at the "ATC MATING POINT." (NOTE: If you have Bennett Trimdicators, plug your starboard display ribbon cable into the ATC Module connector marked "ribbon from STBD Trimdicator Display".)

Installation: Plug the mating connector of the ATC Module into the CPU connection marked "ATC MATING POINT..."

• Make sure the mounting holes in the ATC Module side connecting brackets line up over the holes in the CPU mounting brackets.

• Mount the CPU and ATC Module to a flat surface under the instrument panel using the enclosed (4) #8 x 3/4" stainless steel mounting screws.

Step 4. RUNNING ELECTRICAL CONNECTIONS

Installation:

Plug the connector from the Attitude Sensor cable into the CPU connection marked "FROM ATTITUDE SENSOR"

Plug the two pronged power plug (with 22 gauge orange and black wire) into the CPU connection marked "POWER". Attach the black wire to a convenient ground.  DO NOT CONNECT THE ORANGE POWER WIRE NOW.

Plug the three pronged (only 2 terminals) power plug (with 14 gauge orange and black wire) into the ATC Module connection marked "POWER".  Attach the black wire to a convenient ground.  DO NOT CONNECT THE ORANGE POWER WIRE NOW.

Plug the Four Color Wire Harness connector into the ATC Module connection marked "FROM ATC FOUR COLOR WIRE HARNESS...".

The ATC Four Color Wire Harness should now be connected to the trim tab system. The method of connection is determined by the type of trim tab helm control installed on the boat. The choices are as follows:

• Rocker Switch Control - Attach ring terminals (not included) to the ATC Four Color Wire Harness and connect to the Rocker Switch Control.  Use the "unused" screws on the back of the Rocker Switch, making sure that the same colors "share" the same brass strips. 

• Single Lever Control or Racing Type Control - Run the ATC Four Color Wire Harness to a convenient point in the Trim Tab Four Color Wire Harness and splice the harness wires in four separate connections, matching color for color (red to red, green to green, etc.).

Step 5. MOUNTING THE HELM KEYPAD

Notes: Find a desirable location for the ATC Helm Keypad at the helm station.  The Keypad mounting must be within a 6 foot proximity to the ATC Module for the standard cable to reach (longer cables are available).

Installation:

• Using the enclosed template #1, drill 3/32" pilot holes for the Helm Keypad's mounting screws.

• Using a hole saw drill a 1-1/4" hole for the cable and connector, as marked on the template #1 and feed the cable through the hole.

• Plug the Helm Keypad connector into the ATC Module connection marked "FROM ATC HELM KEY PAD"

• Apply a small bead of silicone sealant around the perimeter of the keypad back and mount with the enclosed (4) #6 x 3/4" oval head screws. Do not over tighten.

OPTIONAL SECOND STATION KEYPAD- Follow the above instructions for mounting the keypad and run cable to the ATC Module and plug into connector marked "FROM BRIDGE ATC HELM KEYPAD."

Step 6. RUNNING POWER WIRES

Notes: DO NOT CONNECT BOTH ORANGE POWER WIRES TO THE SAME POWER SOURCE

Installation:

• Connect the 22 gauge orange wire from the CPU to a convenient 12 volt source switched off with the ignition.

• Connect the 14 gauge orange wire from the ATC Module to a convenient 12 volt source, 20 amp fused source (probably the same source as the trim tab helm control).

Step 7. HOW TO SET THE ZERO POINT

Notes: The ON / OFF Helm Keypad button will not activate the ATC system until the initial zero point is set.  Until the zero point is set the "SET ZERO" light will slowly blink on and off.

Installation: Refer to section #3 in the Auto Tab Control system Operator's Manual for instructions on how to set the Zero Point.

SYSTEM SCHEMATIC: