DavidB
We have a 2008 Generac 17 kw Model 0055310 . Just put a new VR on,Started up the unit in manual and let it warm up. Turned off the circuit breaker on the side of the generator and had around 230 volts. I turned the screw on the pot. clockwise 1/2 turn until I saw 247-248 volts on the meter under no load like the owners manual said. I then turned the breaker back on and still had 247-248 volts thru the breaker and into the transfer switch still under no load. Did I adjust the Voltage output correctly. Thanks David.
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d11gnccer
I'd say your fine.
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DavidB
Thank You d11gnccer for your reply.
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Ginaelectric
You must adjust the Frequency first. Then adjust the Voltage regulator second. No load Freq should be 62. Under load at 60. Then adjust the voltage from there.
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HKFever
Ginaelectric;18881 wrote:
You must adjust the Frequency first. Then adjust the Voltage regulator second. No load Freq should be 62. Under load at 60. Then adjust the voltage from there.


Frequency is king! ;)
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Peddler
That unit, I think, doesn't have a frequecy adjustment, it has an electronic governor. The only thing you can adjust is the voltage. Peddler
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DavidB
What would be the steps to checking the frequency. In the control panel under edit I can see the frequency is set for 60. What is the purpose of wanting 247-249 volts under no load. My owners manual saids that only the 8 kw has a governor to adjust the frequency and all V-Twin units do not require a engine govener adjustment due to their design. It also states the voltage regulator maintains a voltage in direct proportion to frequency at a 2 to 1 ratio. At 60 hertz line to neutral voltage will be 124 volts. So am I safe to think that I only need to adjust the voltage regulator to get a no load voltage somewhere around 247 volts. Peddler I think you might be rite on with no frequency adjustment it is built into the controls electronics with no adjustment. I can only adjust the voltage. Rite now I have it adjusted to give 244 volts with no load is that hight enought. Our utility voltage is also around 244 volts.
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d11gnccer
You are correct. That unit has an electronic throttle control if it is a 2008 model with LCD display.
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GenMan
I usually set them for 247 or as close as i can get them to 247
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DavidB
GenMan
I just started the 17 kw up in manual and let it warm up. I adjusted the voltage regulator to get 247-248 volts no load output with the circuit breaker off on the side of the generac. Sometimes the voltage goes to 245 on the low side and up to 249 just for a second. But stays around the 247-248 voltage. Our utility power is 246 today.
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Eric_G
Frequency adjustment - stepper motor

Peddler;18887 wrote:
That unit, I think, doesn't have a frequecy adjustment, it has an electronic governor. The only thing you can adjust is the voltage. Peddler


I had just replaced the VR on my Guardian 4583 which solved my voltage issue. I was able to get the desired 252v no load...but the no load frequency is solid at 60hz (62hz recommended). With this unit having a stepper motor...there is no manual throttle control to set frequency correct? I would imagine it is maintained automatic.
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