User Manual

8
Connection
IMPORTANT! In retrofit installations, disconnect the wires from the old control panel before connecting
the ACS. It should not be connected in parallel with the old panel. Switch off the main circuit breaker
before starting the connection!
Installation descriptions and a video are available at
www.mente-marine.com
Hydraulic trim tabs
Hydraulic trim tabs, such as Bennett, Instatrim, QL and Trimmaster use a hydraulic pump unit to extend
and retract the actuators. The pump unit is situated in the rear of the boat and connected to the
battery's negative (-) terminal. From the pump unit, a wire harness is routed to the ACS.
Connect the wires to the ACS terminals 3, 4, 5, 6, according to the figure that follows. Terminals 5 and 6
are connected to the pump’s motor and terminals 3 and 4 to the valves controlling the trim tabs. The
table below shows the colours used by the major manufacturers of hydraulic trim tabs.
*Bennett’s electronic control panels have a separate control box. ACS is connected after the control box
directly to the wires of the pump. The old control panel and control box are removed.
ACS
marking
Instatrim
(QL)
Bennett*
Trim-
master
3 Green Red Green
4 White Green White
5 Yellow Yellow Yellow
6 Red Blue Red
10...30V dc (+)
(-)
20A
M
1 2 3 4 5 6 7
3 4 5 6