Generac Power Systems 18 kW NG, 10 kW LP, 13 kW NG, 7 kW NG Operating Instructions, Control Panel

General information

Part 1

Section 1.7

Operating Instructions

Control Panel

SYSTEM READY
LOW BATTERY
LOW OIL PRESSURE
HIGH OIL TEMPERATURE	SET
OVERSPEED	EXERCISE
RPM SENSOR LOSS	ECS	ENTER
OVERCRANK

8 kW UNITS 10-20 kW UNITS

Figure 1. Generator Control Panel

Auto-Off-Manual Switch:

Use this switch to (a) select fully automatic operation,

(b)to crank and start the engine manually, and (c) to shut the unit down or to prevent automatic startup.

1.AUTO position:

a.Select AUTO for fully automatic operation.

b.When AUTO is selected, circuit board will moni- tor utility power source voltage.

c.Should utility voltage drop below a preset level and remain at such a low level for a preset time, circuit board action will initiate engine cranking and startup.

d.Following engine startup, circuit board action will initiate transfer of electrical loads to the “Standby” source side.

e.On restoration of utility source voltage above a preset level, circuit board action will initiate retransfer back to the “Utility Source” side.

f.Following retransfer, circuit board will shut the engine down and will then continue to monitor utility source voltage.

2.OFF Position:

a.Set the switch to OFF to stop an operating engine.

b.To prevent an automatic startup from occurring, set the switch to OFF.

3.MANUAL Position:

a.Set switch to MANUAL to crank and start unit manually.

b.Engine will crank cyclically and start (same as automatic startup, but without transfer). The unit will transfer if utility voltage is not available.

*DANGER: WHEN THE GENERATOR IS INSTALLED IN CONJUNCTION WITH AN AUTOMATIC TRANSFER SWITCH, ENGINE CRANKING AND STARTUP CAN OCCUR AT ANY TIME WITHOUT WARNING (PROVIDING THE AUTO-OFF-MANUAL SWITCH IS SET TO AUTO). TO PREVENT AUTOMATIC STARTUP AND POSSIBLE INJURY THAT MIGHT BE CAUSED BY SUCH STARTUP, ALWAYS SET THE AUTO-OFF-MANUAL SWITCH TO ITS OFF POSITION BEFORE WORKING ON OR AROUND THIS EQUIPMENT.

7.5 Amp Fuse:

This fuse protects the DC control circuit (including the circuit board) against overload. If the fuse element has melted open due to an overload, engine cranking or running will not be possible. Should fuse replace- ment become necessary, use only an identical 7.5 amp replacement fuse.

SETTING THE EXERCISE TIMER:

This generator is equipped with an exercise timer. Once it is set, the generator will start and exercise every seven days, on the day of the week and at the time of day specified. During this exercise period, the unit runs for approximately 12 minutes and then shuts down. Transfer of loads to the generator output does not occur during the exercise cycle unless utility power is lost.

8kW:

A switch on the control panel (see Figure1) permits selection of the day and time for the system to exercise. At the chosen time, perform the following sequence to select the desired day and time of day the system will exercise. Remember seasonal time changes affect the exercise settings.

1.Verify that the AUTO-OFF-MANUAL switch is set to AUTO.

2.Press and hold the “Set Exercise” switch for several seconds. All the red LED’s will stop flashing immediately and the generator will start.

3.The generator will start and run for approximately 12 minutes and then shut down. The exerciser is now set to run at this time of day each week.

Example: If the “Set Exercise” pressed on Saturday afternoon at 2:00 p.m., the generator will start and exercise for approximately 12 minutes every Saturday at 2:00 p.m.

NOTE: The exerciser will only work in the AUTO mode and will not work unless this procedure is performed. The exerciser will need to be reset every time the 12 Volt battery is disconnected and then reconnected, and when the fuse is removed and/or replaced.

Page 27