Guardian Technologies 4759 Operating Instructions, To Select Automatic Operation, Section, Part

GENERAL INFORMATION

PART 1

SECTION 1.6

OPERATING INSTRUCTIONS

THE SET EXERCISE SWITCH:

The air-cooled, prepackaged automatic standby generator will start and exercise once every seven (7) days, on a day and at a time of day selected by the owner or operator. The set exercise time switch is provided to select the day and time of day for system exercise.

See Page 5.1-3 ("The 7-Day Exercise Cycle") for instructions on how to set exercise time.

DANGER: THE GENERATOR WILL CRANK AND START WHEN THE SET EXERCISE TIME SWITCH IS SET TO "ON". DO NOT ACTUATE THE SWITCH TO "ON" UNTIL AFTER YOU HAVE READ THE INSTRUCTIONS IN PART 5.

PROTECTION SYSTEMS:

Unlike an automobile engine, the generator may have to run for long periods of time with no operator present to monitor engine conditions. For that reason, the engine is equipped with the following systems that protect it against potentially damaging conditions:

❏Low Oil Pressure Sensor

❏High Temperature Sensor

❏Overcrank

❏Overspeed

There are LED readouts on the control panel to notify you that one of these faults has occurred. There is also a System Set LED that is lit when all of the following conditions are true:

1.The AUTO-OFF-MANUAL switch is set to the AUTO position.

2.The NOT IN AUTO dip switch is set to the OFF position on the control board.

3.No alarms are present.

TO SELECT AUTOMATIC OPERATION

The following procedure applies only to those installations in which the air-cooled, prepackaged automatic standby generator is installed in conjunction with a prepackaged transfer switch. Prepackaged transfer switches do not have an intelligence circuit of their own, as do Generac "GTS" type transfer switches. Instead, automatic operation on prepackaged transfer switch and generator combinations is controlled by circuit board action.

To select automatic operation when a prepackaged transfer switch is installed along with a prepackaged home standby generator, proceed as follows:

1.Check that the prepackaged transfer switch main contacts are at their UTILITY position, i.e., the load is connected to the utility power supply. If necessary, manually actuate the switch main contacts to their UTILITY source side. See Part 5 of this manual, as appropriate, for instructions.

2.Check that utility source voltage is available to transfer switch terminal lugs N1 and N2 (2-pole, 1-phase transfer switches).

3.Set the generator AUTO-OFF-MANUAL switch to its AUTO position.

4.Actuate the generator main line circuit breaker to its "On" or "Closed" position. With the preceding Steps 1 through 4 completed, a dropout in utility supply voltage below a preset level will result in automatic generator cranking and start-up. Following startup, the prepackaged transfer switch will be actuated to its "Standby" source side, i.e., loads powered by the standby generator.

MANUAL TRANSFER TO "STANDBY" AND

MANUAL STARTUP

To transfer electrical loads to the "Standby" (generator) source and start the generator manually, proceed as follows:

1.On the generator panel, set the AUTO-OFF-MANUAL switch to OFF.

2.On the generator, set the main line circuit breaker to it's OFF or "Open" position.

3.Turn OFF the utility power supply to the transfer switch, using whatever means provided (such as a utility source line circuit breaker).

4.Manually actuate the transfer switch main contacts to their “Standby” position, i.e., loads connected to the “Standby” power source side.

NOTE: For instructions on manual operation of prepackaged transfer switches, see Part 5.

5.On the generator panel, set the AUTO-OFF-MANUAL switch to MANUAL. The engine should crank and start.

6.Let the engine warm up and stabilize for a minute or two at no-load.

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