48 ST4000+ Wheel & Tiller Autopilots: Owner’s Handbook
5 Installing the ST4000+
5.2 Control unit
Location
Locate the ST4000+ control unit so it is:
• within easy reach from the steering position
• viewable straight on, or with a maximum viewing angle of 30°
• protected from physical damage
• at least 230 mm (9 in) from any compass
• at least 1 m (3 ft) from any radio/radar receivers/transmitters
The selected location should also:
• be clean, smooth and flat
• be accessible from behind (so you can secure and run cables)
• have sufficient space to accommodate the rear of the control unit
and connectors
• allow at least 6 mm (
1
/
4
in) between adjacent control units and
instruments so you can fit their sun covers
CAUTION:
The ST4000+ front cover is waterproof when installed according
to the following instructions. However, the rear cover must be
protected from water in a ventilated and drained area. Any water
or water vapor in this area could cause damage by coming into
contact with electrical connections or condensation by entering
the control unit through its breathing hole.
110 mm (4.33 in)
115 mm (4.53 in)
90 mm (3.55 in)
24 mm
(0.95 in)
17 mm
(0.67 in)
D3242-2
Control unit dimensions
