Liquid-Cooled Instruction Sheet

Engine Shutdown Add-On Kit 5
Firmware Update (if required)
The generator controller may require a firmware update.
Firmware version 1.19 or later is required.
Verify controller firmware version. If an update is
required, install latest version before testing engine
shutdown switches.
1. Connect negative battery terminal and tighten nut.
2. Install 7.5 A fuse and configure install wizard.
3. With generator controller OFF, enter Edit menu.
4. Scroll through the options and select “Update
Firmware.” Press Enter.
5. Insert a USB drive with current firmware into
controller port. Follow prompts.
6. After firmware has been updated, press “Escape”
until sub menu screen displays.
7. Enter dealer menu.
8. Select “Dealer/Edit” menu.
9. Scroll through the options and select “Auxiliary Stop
Setting.”
10. Select “Auxiliary Shutdown.”
11. Press Escape until submenu screen displays.
Activate Engine Shutdown
Functionality
Verify firmware version of the controller is correct as
specified in Firmware Update (if required). If an update
is required, download and install the latest firmware
before proceeding.
The controller must detect the installed switches to
activate the engine shutdown functionality.
1. Verify controller is powered and generator is OFF.
2. Turn rocker switches ON to verify switches are
disengaged.
3. Turn one rocker switch OFF. The controller should
detect that the switch has been engaged and will
display “Auxiliary Shutdown.”
• If alarm appears on controller screen, turn rocker
switch ON and clear alarm.
• If alarm does not appear on controller screen,
engine shutdown switch is not functioning. Verify
firmware version meets requirements. Disconnect
power and re-check wiring installation. Contact
Generac Technical Support if the problem cannot
be identified or if you need assistance.
4. Repeat steps 1–3 for second rocker switch.
Test Switch Operation
Test engine shutdown switches after installation to verify
proper operation.
1. Verify rocker switches are ON.
2. Press MANUAL key on control panel keypad to start
engine.
3. With engine running, press one of the engine
shutdown switches to OFF. Engine should shut down
immediately.
• If engine stops, press engine shutdown switch to
ON, clear alarm on controller, and restart engine to
verify generator is operating normally. After
verifying normal operation of first switch, verify
operation of second switch.
•If engine does not stop, engine shutdown switch
is not functioning correctly. Stop generator through
the control panel, and re-check wiring installation.
Contact Generac Technical Support if the problem
cannot be identified or if you need assistance.
4. Show homeowner how to operate engine shutdown
switches. Remind him or her that the engine
shutdown switches are not intended to be the
primary means to shut down the generator under
normal operating conditions. Accidental activation of
an engine shutdown switch will prevent the generator
from operating during a power outage.
Complete Installation
1. Move main line circuit breaker (generator disconnect)
to ON (closed).
2. Close viewing window.
3. Install side access panel and lock latch using vise-
action key.
Figure 12 - Completed Installation
ON
OFF
ENGINE
SHUTDOWN
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