Raymarine E12171 Installation Manual page 19

Make the following connections:
Table 1-2: Recommended cable sizes
Cable length
(pump to
course
computer or
ACU)
12V CR pumps
up to 3m (10ft.)
up to 7m (23 ft.)
up to 16m (52 ft.)
12V CR pumps
up to 3m (10ft.)
up to 5m (16 ft.)
up to 10m (32 ft.)
up to 16m (52 ft.)
1. CR pump motor supply:
• using appropriate cables connect the CR pump motor to the boat's
power supply via an appropriate circuit breaker and fuse (see table
above).
2. Solenoid control valves - using suitable cable (at least 16 AWG or 1.5mm
runs up to 16m/52 ft.):
• for the "A" side: connect the positive core to the MOTOR A terminal and
the negative core to one of the SOLENOID (-) terminals at the course
computer.
•for the "B" side: connect the positive core to the MOTOR B terminal and
the negative core to one of the SOLENOID (-) terminals at the course
computer.
3. Using a pair of cables, connect the motor relay control terminals on the pump
to the course computer CLUTCH terminals.
WARNING: CLUTCH VOLTAGE
To avoid damaging your CR pump, you MUST set the CLUTCH VOLTAGE
fuse on your course computer to 12V. This applies even on 24V motor
systems.
Note: if installing the pump on a boat with mechanical steering, you also need to
connect a bypass valve to the CLUTCH terminals (see page 20).
Cable gauge
(AWG)
10
8
6
12
10
8
6
Copper area
(mm²)
6
10
16
4
6
10
16
19
Fuse rating
60 A
40A
²
for