Section 6

DIAGNOSTIC TESTS

Introduction

The “Diagnostic Tests” in this chapter may be per- formed in conjunction with the “Flow Charts” of Section 5. Test numbers in this chapter correspond to the numbered tests in the “Flow Charts”.

Tests 1 through 19 are procedures Involving problems with the generator's AC output voltage and frequency (Problems 1 through 5 in the “Flow Charts”).

Tests 19 through 54 are procedures involving prob- lems with engine operation (Problems 6 through 14 in the “Troubleshooting Flow Charts”).

It may be helpful to read Section 2, “Measuring Electricity”.

NOTE: Test procedures in this Manual are not nec- essarily the only acceptable methods for diagnos- ing the condition of components and circuits. All possible methods that might be used for system diagnosis have not been evaluated. If any diag- nostic method is used other than the method pre- sented in this Manual, the technician must ensure that neither his personal safety nor the product's safety will be endangered by the procedure or method that has been selected.

Test 1 - Check No-Load Voltage and

Frequency

PROCEDURE:

1.Disconnect or turn OFF all electrical loads connected to the generator.

2.Set a volt meter to measure AC voltage.

3.Reset all circuit breakers to the on position.

4.Turn the Idle Control switch to OFF.

5.Start the engine and let it stabilize and warm up.

50A240

Figure 6-1. – VOM Test Leads Connected to 50A

Outlet

*NOTE: If the generator is not producing AC Power, loss of governor control may occur caus- ing an overspeed or extremely high RPM condi- tion. If this condition occurs manually control throttle (60Hz /3600 RPM) to perform test.

6.Place the meter test leads into the 50A outlet. See Figure 6-1.

7.Read the AC voltage.

8.Connect a AC frequency meter as described in Step 6.

9.Read the AC frequency.

RESULTS:

For units rated 60 Hertz, no load voltage and frequen- cy should be approximately 238-242 VAC and 59-61 Hertz. See Flow Chart Problem 1.

TEST 2 - CHECK MAIN CIRCUIT BREAKER

PROCEDURE:

The generator has seven circuit breakers located on the control panel. If outlets are not receiving power, make sure the breakers are set to ON or “Closed”.

If a breaker is suspected to have failed, it can be tested as follows (see Figure 6-7):

1.Set a Volt meter to measure resistance.

2.With the generator shut down, disconnect all wires from the suspected circuit breaker terminals to prevent interaction.

3.With the generator shut down, connect one meter test lead to a one terminal of the breaker and the other meter test lead to the other terminal. See Figure 6-7.

4.Set the breaker to its ON or “Closed” position. The meter should read CONTINUITY.

5.Set the breaker to its OFF or “Open” position and the meter should indicate INFINITY.

RESULTS:

1.If the circuit breaker tests good, refer back to the flow chart.

2.If the breaker tests bad, it should be replaced.

A B

00.00

ON

50A

 

OFF

C.B.

A B

Figure 6-7. – 50 Amp Breaker Test Points

Page 37

Page 38 Page 40
Page 39
Image 39
Guardian Technologies 5308 Test 1 Check No-Load Voltage Frequency, Test 2 Check Main Circuit Breaker, Procedure, Results
Page 38 Page 40

5308, 4583, 4451 & 4986, 4582 & 4987 specifications

Guardian Technologies has carved a niche in the market with its innovative air purification and UV-C sanitization products. The company's model numbers, including 4582, 4987, 4451, 4986, 4583, and 5308, represent a diverse range of solutions designed to enhance indoor air quality and safety in both residential and commercial settings.

The Guardian Technologies 4582 is equipped with a true HEPA filter that captures 99.97% of dust, pollen, smoke, and other particles as small as 0.3 microns. This model features a smart sensor that adjusts the fan speed according to the air quality in real-time. The UV-C light technology integrated into this device works to eliminate viruses and bacteria, providing an additional layer of protection against airborne pathogens.

The 4987 model follows suit with similar advanced features but adds a sleek design ideal for modern interiors. With multiple speed settings and a night mode, the 4987 is perfect for bedrooms or quiet spaces. Its energy-efficient operation coupled with an indicator that signals filter replacement ensures that users maintain optimal performance effortlessly.

The Guardian Technologies 4451 and 4986 models are particularly notable for their enhanced capacity and filtration efficiency. Both units incorporate a three-in-one filtration system that includes a pre-filter, activated charcoal filter, and HEPA filter. With their strategic design, these models not only purify the air but also trap common household odors, making them a popular choice for families with pets.

The 4583 model stands out with a unique combination of design and functionality. It features a low-profile design, making it easy to fit into any space. Its UV-C light technology not only disinfects air but can also sanitize surfaces, bridging the gap between air purification and direct sanitation.

Finally, the Guardian Technologies 5308 caters to larger spaces, offering impressive air circulation and filtration capabilities. Equipped with a high-efficiency particulate air (HEPA) filter and a powerful fan, it effectively cleans larger areas while maintaining whisper-quiet operation.

In summary, Guardian Technologies’ products exemplify a commitment to improving air quality and promoting health through innovative technology. With features like HEPA filtration, UV-C sanitization, smart sensors, and sleek designs, consumers can choose from a range of models that best fit their needs, ensuring cleaner, safer indoor environments.
Top Page Image Contents