ghi_tx001462gb.fm
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HI 400HD D / HD G Operation
4.26 High and Low Voltage Protection (G Models)
Serial Number
Range
20105810 and higher
Introduction
Your machine is equipped with a control board that offers high and low voltage
protection. This enhanced control board controls burner operation when the
voltage drops or spikes for prolonged periods. If you wish to install this enhanced
control board on a machine outside the serial number range listed above, contact
Wacker Neuson.
Operation
During high and low voltage conditions, machines equipped with this feature
operate as shown in the table below.
Note: The machine can not be reset while the operating status indicator is blinking
orange.
Overriding
restart delay
To override the 2 minute delay for restarting the machine after the voltage rises
above 90 VAC, remove the plug from the power receptacle and immediately plug it
back in. If the problem persists, contact Wacker Neuson.
If the Voltage: Duration Action
Drops below 90 VAC 10 seconds Shuts down machine and initiates a
blinking orange operating status indicator.
Rises above 90 VAC 2 minutes Restarts machine.
Rises above 147 VAC — Shuts down machine immediately.
Drops below 147 VAC — Restarts the machine immediately.
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