Standby Generator Sets Engine Protective Devices

ENGINE PROTECTIVE DEVICES

The standby generator may be required to operate for long periods of time without an operator on hand to monitor such engine conditions as coolant tempera- ture, oil pressure or rpm. For that reason, the engine has several devices designed to protect it against potentially damaging conditions by automatically shutting down the unit when the oil pressure is too low, the coolant temperature is too high, the coolant level is too low, or the engine is running too fast.

NOTE:

Engine protective switches and sensors are men- tioned here for the reader’s convenience. Also refer to the applicable control panel manual for additional automatic engine shutdown informa- tion.

‹HIGH COOLANT TEMPERATURE SWITCH

This switches contacts close if the temperature should exceed approximately 140° C (284° F), initiating an engine shutdown. The generator will automatically restart and the LED will reset once the temperature has returned to a safe operating level.

‹LOW COOLANT LEVEL SENSOR

Should the engine coolant level drop below the level of the high coolant temperature switch, it is possible for the engine to overheat without automatic shut- down. To prevent such overheating, the engine has a low coolant level sensor. If the level of engine coolant drops below the level of the low coolant level sensor, the engine automatically shuts down.

‹OVERCRANK SHUTDOWN

After a prespecified duration of cranking, this func- tion ends the cranking if the engine has failed to start. The overcrank LED will turn ON. Turn OFF the AUTO/OFF/MANUAL switch, then turn switch back to AUTO to reset the generator control board.

NOTE:

If the fault is not corrected, the overcrank feature will continue to activate.

Approximate Crank Cycle Times

•15 seconds ON

•7 seconds OFF

•7 seconds ON

•7 seconds OFF

•Repeat for 45 seconds Approximately 90 seconds total.

‹OVERSPEED SHUTDOWN

A speed circuit controls engine cranking, start-up, operation and shutdown. Engine speed signals are delivered to the circuit board whenever the unit is running. Should the engine overspeed above a safe, preset value, the circuit board initiates an automatic engine shutdown. Contact the nearest Authorized Dealer if this failure occurs.

‹RPM SENSOR LOSS SHUTDOWN

If the speed signal to the control panel is lost, engine shutdown will occur.

‹LOW OIL PRESSURE SWITCH

This switch has normally closed contacts that are held open by engine oil pressure during cranking and operating. Should oil pressure drop below the 8 psi range, switch contacts close, and the engine shuts down. The unit should not be restarted until oil is added, and the AUTO/OFF/MANUAL switch must be turned to OFF and then back to AUTO.

‹DC FUSE

This fuse is located inside of the control panel. It protects the panel wiring and components from damaging overload. Always remove this fuse before commencing work on the generator. The unit will not start or crank if the fuse is blown. Replace the fuse with one of the same size, type, and rating. (See the exploded views and parts lists at the end of this manual for replacement part number.)

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Generac Power Systems 005220-0 owner manual Engine Protective Devices
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005220-0 specifications

Generac Power Systems has made a name for itself in the world of backup and portable power solutions, and the Generac 005220-0 is no exception. This advanced generator is engineered for reliability and efficiency, making it an ideal choice for home and business owners who require a dependable source of power during outages.

One of the standout features of the Generac 005220-0 is its powerful Generac OHV engine, designed for optimal performance and longevity. This four-stroke engine provides ample power, ensuring that essential appliances and systems can continue to operate without interruption during power failures. With a 7,500 running watt and 9,375 starting watt capacity, it can handle a significant load, making it suitable for various applications, from powering essential home appliances to running tools on job sites.

Additionally, the 005220-0 is equipped with a large, durable 9.5-gallon fuel tank, allowing for extended run times. Depending on the load, users can expect several hours of operation without needing to refuel, which is a critical consideration for emergencies. The economical fuel consumption is a plus, providing significant runtime while minimizing costs.

In terms of technology, the Generac 005220-0 utilizes a variety of features that enhance its functionality and ease of use. The integrated Control Panel includes multiple outlets, enabling users to connect multiple devices simultaneously. Further, it comes with a digital hour meter, which helps track maintenance intervals and runtime, ensuring that the generator remains in optimal working condition.

Safety is a priority with the 005220-0, as it incorporates low-oil shutdown technology, which automatically turns off the engine when oil levels are dangerously low. This feature prevents potential engine damage, extending the lifespan of the generator. Additionally, it is equipped with a circuit breaker, protecting against overloads, thereby safeguarding both the generator and connected devices.

One of the key characteristics of the Generac 005220-0 is its portability. The generator is designed with a sturdy frame and comes with never-flat wheels and a folding handle, making it easy to transport to various locations as needed.

In summary, the Generac 005220-0 stands out for its powerful performance, extended runtime, user-friendly features, and safety attributes. Whether for home backup or job site power, it provides confidence and reliability, ensuring that power needs are met even in challenging circumstances.
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