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4.4 Fitting Control Unit SHC14
The SHC14 controller is supplied with a cradle
that can be screwed to a convenient bulkhead
using the supplied self-tapping screws. Drill
2.5mm (0.1 in) pilot holes for the screws.
• If fitting to glassfibre (GRP) countersink the
holes before screwing in to avoid splitting the
gelcoat.
The SHC14 is fitted with a coiled cable ending
in a four-pin plug. This connects to the autopi-
lot via a weatherproof socket assembly and
junction box.
• Fit the bulkhead socket to a vertical surface to
prevent standing water gathering around or in
the socket. Always fit the weather cap when the
remote is not plugged in.
To fit the socket to the dash, a 25mm (1 in) hole
will need to be drilled for the socket, which is
fixed using the four self-tapping screws provid-
ed with the socket assembly. Drill 2mm (0.1 in)
pilot holes for the screws.
• Again, to avoid splitting the gelcoat if fitting to
GRP, countersink the holes before screwing in.
4.5 Fitting Compass Unit SHS12
The compass should be positioned as close to
the centreline of the boat as possible (Fig 4.15),
in one of four possible orientations (see section
6.2). If the boat is GRP or wooden, the compass
can be mounted below deck, but must be at
least 1m (3 ft) away from any metallic objects
such as stereo speakers, heating units etc.
• If the boat has a metal hull (this includes fer-
rocement), the compass must be mounted
above decks on a mast or pole between one and
two metres (3 to 7 feet) above deck.
When mounting, make sure that the compass is
the right way up and is level. The compass unit
can be screwed to a vertical bulkhead using the
two No.6 x
3
in self tapping screws provided. If
/ 4
screwing into GRP, drill pilot holes and coun-
tersink them properly, which will stop the gel-
coat splitting when the screws are tightened.
Page 20
Fig 4.14 - Connecting control unit
BOW
BOTTOM
VIEW
BOW
SIDE
VIEW
Fig 4.15 - Mounting compass unit
4.6 Fitting Course Computer SCP12
Locate the course computer in a moisture, heat
and vibration free area, somewhere between the
boat's power source and the pump to minimise
power cable lengths.
• The SCP12 should be mounted vertically with
the cooling fin uppermost, and be easily acces-
sible once installed.
The unit is held in place using three No.6 x 1 in
self tapping screws. To access the mounting
holes, remove the terminal cover by loosening
the three screws holding it in place. Drill and
countersink three pilot holes in the indicated
positions if screwing to GRP (Fig 4.16).
4.7 Electrical Installation
• The SCP12 should be connected to the boat's
battery via the main switch panel with a prop-
erly rated breaker or fuse and switch. It will be
much easier to configure the rudder limits if the
switch is close to the SHC14 control.
• All AP14H components wire directly to the
SCP12 course computer. The terminal bay is
clearly labelled, and each terminal block has a
specific cable channel.
• It is important that the correct diameter
cable is used to supply the 12v power to the
SCP12, depending on the length of run nec-
essary (Fig 4.17). For this reason, the SCP12
should be fitted as close to the power supply
and pump as possible.
The SLF12, SHC14 and SHS12 are all connected
to the course computer using three conductor
cables (red, white and black). Each cable is con-
nected to the marked terminal in the connection
bay (Fig 4.18 - over). For good connections, wire
ends should be tinned if the cables are shortened.
Poor connections will impair performance.
• The cables should be kept away from cables
which carry radio or pulsed signals (1m / 3 Ft
minimum distance is recommended).
Each cable should then be led through the
appropriate cable channel, which will hold the
cables firmly in position when the terminal
cover is replaced.
SIDE VIEW
TOP VIEW
Fig 4.16 - Mounting Course Computer
Length of
Cross Section
Conductor
AWG
Cable Run
Area
Type
Under 5M
2.5mm 2
50/0.25
13
(16.6Ft)
5-10M
4mm 2
56/0.3
12
(33.3Ft)
Fig 4.17 - Cable selection table
Page 21
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