Control Panels - Northern Lights M844W3 Operator's Manual

Figure 3-A: Series 1-B Generator Control Panel
Figure 3-B: Series 3 Generator Control Panel
Figure 3-C: Series 4 Generator Control Panel
Updated 10-11-19

Control Panels

1. SHUTDOWN BYPASS-PREHEAT SWITCH
There are two functions built into this switch:
1. Preheats the fuel before beginning the starting
process. Press switch 10 seconds before
attempting start-up.
2. Bypasses the safety shutdown feature during starting
process. Keep switch engaged while starting engine and
for up to five seconds afterwards, allowing oil pressure
to build beyond shutdown set point.
2. ENGINE CONTROL SWITCH
To start the engine, hold this switch in the START
position until the engine is running.
NOTE: Excessive cranking of marine sets equipped
with water lift muffler systems can cause engine damage.
See page 7.
After the engine starts, release the switch and it will
return to RUN position. To stop the engine, hold the
switch in the STOP position until the engine has
completely stopped.
NOTE: The rocker switch is used on Series 1 panels only,
and has a light that glows when the set is running.
3. HOUR METER
Keeps track of engine running time.
4. OIL PRESSURE GAUGE
Shows the oil pressure in the engine lubricating system.
5. ENGINE TEMPERATURE GAUGE
Registers the temperature of the engine coolant.
6. D.C. VOLTMETER OR AMMETER
When the engine is stopped, the voltmeter indicates the
condition of the battery. When the engine is running, the
voltmeter indicates the voltage output of the alternator.
For Series 4 Control Panels Only:
7. A.C. VOLTMETER
Shows the generator output voltage.
8. FREQUENCY METER (Hertz)
The frequency meter indicates alternating current
frequency: 60 Hz (1800 RPM), or 50 Hz (1500 RPM).
9. AMMETER/VOLTMETER SELECTOR
SWITCH
Used to check voltage and current of each phase.
10. A.C. AMMETER
Shows the generator load on each phase. The phase is
selected with the Ammeter Selector switch (
OM844W3 5/21
12
).
Item 9