Wolo 140 Sea Alert - Manual (Page 3)

WIRING:
USING BOATS FACTORY HORN SYSTEM (TWO WIRE SYSTEM) Fig. 6
WARNING: You are required to use the relay supplied with this horn kit to protect the factory horn button
switch and wiring. The original factory horn draws less amperage then your new Sea Alert air horn. The relay
will ensure that the horn works reliably and will protect the factory horn system.
16. Remove the two (2) wires connected to
factory horn.
17. Connect relay terminal 85 to one of the
factory horn wires. Note: It does not make
a difference which factory horn wire is
connected to terminal 85.
18. Connect relay terminal 86 to the other
factory horn wire.
19. Connect relay terminal 30 to positive (+)
12-volts such as the battery, alternator or
fuse block, using 16-gauge or heavier wire.
WARNING: The 20-amp inline fuse provided
must be connected directly to the power
source.
20. Connect relay terminal 87 to the
compressor’s positive (+) terminal. Use not
less than 16-gauge wire.
21. Connect the compressor’s (-) terminal to boat’s negative (-) battery post or any clean metal negative
surface. Use not less than 16-gauge wire
.
RECAP OF RELAY TERMINAL CONNECTIONS
Relay terminals 30: connected to 12-volts (+) positive, using the 20-amp inline fuse.
Relay terminal 85: is connected to one of the factory horn wires.
Relay terminal 86: is connected to the other factory horn wire.
Relay terminal 87: is connected to the compressor’s (+) motor terminal.
The compressor’s negative (-) terminal is connected the boat’s negative (-) battery post.
WARNING: ALWAYS TEST THE HORN SIGNAL SYSTEM BEFORE USING THE VESSEL TO ENSURE
THE HORN IS FUNCTIONING AT PEAK PERFORMANCE. YOUR LIFE AND THE LIVES OF PEOPLE
ARE DEPENDENT ON THE VESSEL HAVING A WORKING HORN SIGNAL SYSTEM. NEVER USE THE
VESSEL WITHOUT A WORKING HORN SYSTEM.
Fig. 6
86