Manuals / Generac Power Systems / Lawn and Garden / Portable Generator

Generac Power Systems 20 Generator Control Operation, Operating Unit with Manual Transfer Switch

Models: 25 30 20

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Standby Generator Sets

Operation

GENERATOR CONTROL AND

OPERATION

Refer to the appropriate control panel operator’s manual for this unit.

OPERATING UNIT WITH MANUAL TRANSFER SWITCH

If the generator was installed in conjunction with a transfer switch capable of manual operation only, the following procedure applies. A manually operated transfer switch is one that will not provide automatic start-up and does not include an intelligence circuit.

‹ENGINE START-UP AND TRANSFER

For additional information, refer to the applicable control panel manual for this unit, as well as any lit- erature pertaining to the specific transfer switch.

DANGER

The Maintenance Disconnect Switch and the AUTO/OFF/MANUAL switches (if so equipped) must be set properly, or the generator will crank and start as soon as the utility power to the transfer switch is turned off. Refer to applicable control panel and transfer switch manuals for more information.

Do not proceed until certain that utility source voltage is available to the transfer switch and the transfer switch main contacts are set to

UTILITY.

Do not attempt manual operation until all power supplies to the transfer switch have been posi- tively turned off, or extremely dangerous - pos- sibly lethal - electrical shock will result.

Transfer switch enclosure doors should be kept closed and locked. Only authorized personnel should be allowed access to the transfer switch interior. Extremely high and dangerous voltages are present in the transfer switch.

In order to transfer load from the utility source to the generator, follow these directions:

•Turn OFF or disconnect the utility power circuit to the transfer switch, using the means provided (such as the utility source main line circuit break- er).

•Set the transfer handle to its UTILITY (NORMAL) position with load circuits connected to the utility power supply.

•Set the standby generator’s main line circuit break- er to its OFF (or OPEN) position.

•Start the generator.

Do not crank the engine continuously for longer than 30 seconds, or the heat may

damage the starter motor.

•Let engine stabilize and warm up.

•Check all applicable instrument and gauge read- ings. When certain that all readings are correct, move the transfer switch manual handle to its STANDBY (GENERATOR) position, i.e., load cir- cuits supplied by the generator.

•Set the standby generator’s main line circuit break- er to its ON (or CLOSED) position.

•Load circuits are now powered by the standby generator.

‹RETRANSFER AND SHUTDOWN

For additional information, refer to the applicable control panel manual for this unit, as well as any lit- erature pertaining to the specific transfer switch.

To transfer the load back to the utility power source and shut down the generator, follow these direc- tions:

•Set the standby generator’s main line circuit break- er to its OFF (or OPEN) position.

•Manually move the transfer switch handle to its UTILITY (NORMAL) position, i.e., load circuits connected to the utility.

•Turn ON the utility power supply to the transfer switch, using the means provided (such as the util- ity power source main line circuit breaker).

•Let the generator run at no-load for a few minutes to stabilize internal temperatures.

•Shut down the generator.

OPERATING UNIT WITH AUTOMATIC TRANSFER SWITCH

If the generator has been installed with an automatic transfer switch, such as an RTS, HTS, or GTS-type transfer switch, the engine may be started and stopped automatically or manually.

NOTE:

Refer to the applicable manual for your trans- fer switch and to “Transfer Switch Start Signal Connections”. In addition, please note the dangers under “Engine Start-up and Transfer.”

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Generac Power Systems 20, 30, 25 owner manual Generator Control Operation, Operating Unit with Manual Transfer Switch
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25, 30, 20 specifications

Generac Power Systems is a leading manufacturer of backup power generation products and tools, known for their reliability and innovation. Among their diverse lineup are the Generac 20kW, 25kW, and 30kW home standby generators. These models are designed to provide seamless power during an outage, allowing homeowners to maintain their everyday activities without interruption.

The Generac 20kW generator is particularly popular for residential use. It can power essential circuits as well as larger appliances, making it an ideal choice for homes with moderate electricity needs. One of its standout features is the Smart Management Module, which allows homeowners to manage energy consumption effectively, ensuring that they can run necessary appliances without overwhelming the system. Additionally, the 20kW generator is equipped with a durable enclosure, offering long-lasting protection against the elements.

Moving up in capacity, the Generac 25kW model caters to homes with higher electricity demands. This generator combines efficiency with strength, providing enough power for a wider range of home appliances and systems. It features a TruePower Technology that delivers clean power, crucial for sensitive electronics. Moreover, the 25kW model operates quietly, contributing to a comfortable home environment even during power outages.

The Generac 30kW generator is designed for larger homes or light commercial applications. It provides an impressive power output while maintaining high efficiency. Its features include advanced digital control, allowing for easy monitoring and maintenance. The 30kW model also offers an automatic transfer switch, which ensures that power is restored quickly and safely when utilities fail.

All three models utilize Generac's G-Force engine, known for its low maintenance requirements and high performance. They come with a five-year limited warranty, providing peace of mind for users. Furthermore, with Wi-Fi monitoring capabilities, homeowners can keep track of their generator's status from anywhere, ensuring they are always prepared for any power interruption.

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