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Transfer Switch Communication
(Units with ACCM II or later transfer switch only)
Using #18 AWG twisted pair conductors, no greater than
200 ft in length, connect Tx Rx and Tx Rx GND from the
generator control panel (B) to GND and T/R on the transfer
switch control board (C) via the low voltage access hole (D).
Fault Detection System
The generator may have to run for long periods of time with
no operator present. For that reason, the system is equipped
with sensors that automatically shut down the generator
in the event of potentially damaging conditions, such as
low oil pressure, high temperature, over speed, and other
conditions. Refer to Fault Detection System in the operator’s
manual for more detailed information.
System Control Panel
The generator control panel, located inside the generator
housing, is shown below.
Brief descriptions of the controls used during installation are:
A – SET EXERCISE — Used to set the exercise cycle.
B - Circuit Breaker — Must be ON to supply power to the
transfer switch
C - 15 Amp Fuse —- Protects DC control circuits. Of the
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engine cannot crank or start. Replace the fuse using only
an identical ATO 15A fuse. One spare fuse is supplied
with the unit. If fuse was blown or removed, you will
need to rest the exercise timer (see Setting Exercise
Timer).
D - System Switch — This two-position switch is the most
important control on the home generator and is used
as follows:
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a utility power outage is sensed, the system will start
the generator. When utility power is restored, let the
engine stabilize internal temperatures, shuts off the
generator, and waits for the next utility power outage.
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unit from starting and resets any detected faults.
E - MANUAL OVER-RIDE — Used to manually start and stop
the generator.
F - Digital Display — Displays running time in hour or
fault codes.
More information may be found in Controls in the
operator’s manual.
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