28 4812325559EN 2018-02-20
Exhaust System Cleaning Switch
Exhaust System Cleaning Enabled
The switch remains in the standard mid-position during normal
operations. This means Exhaust System Cleaning is enabled
and allows the exhaust system to clear any build-up by initiating
automatic cleaning. Exhaust System Cleaning initiated
automatically by a preset timer at 20-hour intervals and takes
around 15-30 minutes to complete. No operator action is
required and the equipment continues to work as normal during
the cleaning.
The HEST lamp may illuminate during cleaning to indicate
higher than normal exhaust temperatures and safety
considerations apply.
Start Exhaust System Cleaning
Pressing the switch into the top position starts a manual
(parked) Exhaust System Cleaning. This is required
on infrequent occasions due to very unusual duty cycle
conditions. A manual (parked) Exhaust System Cleaning may
be needed when the Exhaust System Cleaning Lamp
illuminates. When the Start Switch is pressed, cleaning begins
and this is confirmed by the Exhaust System Cleaning Lamp
flashing.
The HEST lamp may illuminate during the manual (parked)
Exhaust System Cleaning to indicate higher than normal
exhaust temperatures and safety considerations apply. The
switch returns to the standard Mid-Position after pressing the
manual (parked) Exhaust System cleaning.
Stop Exhaust System Cleaning Function
Pressing the switch into the bottom position prevents Exhaust
System Cleaning from occurring. Stopping the Exhaust System
Cleaning function is required only for safety reasons to avoid
higher than normal exhaust temperatures.
When the switch is pressed the Exhaust System Cleaning STOP
Lamp illuminates to indicate Exhaust System Cleaning is
disabled. The switch remains engaged in this position until
pressed back to the standard mid-position to restore the
automatic Exhaust System Cleaning function.
Exhaust System Cleaning should not be left disabled for long
periods of time as this results in the need for a manual (parked)
Exhaust System Cleaning.
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