PROGRAMMING MANUAL • PH5
- Mk II AIR INTAKE EMERGENCY SHUT-OFF VALVE
L6533
ECN 1-2408
L6533_Rev1
2
1
Operation
•
When the controller is unprogrammed, red light will exhibit continuous rapid flash
•
When the controller is programmed and in normal operating mode, light will remain off
•
When emergency condition arises and engine shutdown is needed, press toggle switch and valve will close
•
In overspeed runaway condition, controller will automatically close the valve and shut down the engine
•
When the valve is activated, red light will become solidly lit and remain lit until removal of shut-down
signal and a minimum of 15 seconds has elapsed.
•
Once shut-down signal is removed and 15 seconds have elapsed, red light will exhibit continuous slow
flash and valve can be reset (continuous slow flash is a reminder that the valve has closed and needs to be
reset)
•
Red light will extinguish when engine is restarted and constant RPM is read for 10 seconds (if engine can
be run for 10 seconds, the valve must already be reset - the continuous flash warning will turn itself off)
Use your discretion to reset valve and restart engine after a shut-down event. Do NOT reset the valve until
it is safe to do so. In most cases, it is recommended to wait until the cause is understood and shared with
the necessary safety parties before restarting.
Do NOT activate toggle switch for more than 5 seconds as system may enter Test Mode. Valve will still
close and require manual reset if this occurs.
2
Maintenance
To ensure a trouble-free long life of your PowerHalt Shut-Off Valve, a scheduled monthly maintenance procedure
is mandatory:
Seizing due to lack of use is the #1 failure mode of any shut-off valve in the market. As this is a safety
device, activation testing must be employed at a minimum of once per month to ensure system remains
functional and valve is free moving. Daily activations are recommended to ensure proper function of the
system.
•
Inspect all fasteners, clamps, and support brackets for tightness and the required torque
•
Inspect all wiring / cable runs for corrosion, vibration wear, and loose connections
•
Inspect all hoses for cracks, damage, and leaks
•
Inspect the controller for damage, dirt, and poor connections
•
Activate the valve to ensure it remains functional and free moving
