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kf3cw
Does interrupting the N1 lead with a switch cause the system to act just like a power outage? Whereas just throwing the breaker inside the transfer switch cabinet does not? Even though both transfer the load to the generator. I can easily interrupt the N1 lead if that is the preferred way to run the generator under load to get the moisture out of my oil, but would like specific steps in doing this. How much current is flowing through this lead?  Could I use a SPST toggle switch of sufficient current rating or better to use a “ 120v light switch “. Would I just place Generac on MANUAL mode , cut the N1lead and wire it thru a switch - ensure switch was closed, place Generac back in AUTO mode . And then to test procedure throw the switch opening the N1lead and let run( under load for 45 minutes) to remove moisture from oil. IN MY OPINION, GENERAC IS IGNORING A SERIOUS PROBLEM THAT IN THE END COSTS THE CONSUMER BIG $$$$.  Appreciate all of your inputs and Thanks for any help. 
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Brian Baughman
If an end user chooses to run a loaded exercise cycle, the best method is to turn off the normal source of power to the ATS.  Using a switch on the control wiring is not advised since it will cause the connected load to be connected to the generator without an interruption of power.  This could be problematic with motor loads if they are running and they are not connected to a load management system.
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Geoff Z
JayH wrote:


Ten years of 5-minute exercises = 5 * 52 * 10 / 60 = 43.3 hours.
Ten years of 12-minute exercises = 12 * 52 * 10 / 60 = 104 hours.

The difference doesn't seem like it would be a significant factor in engine life over a ten year period.


The 7 minute difference is not a significant factor. In a cold environment 12 minutes is not enough time to heat the engine to a point of boiling off condensation. We see 25-30 generators a week. Out of that 1 or 2 may have milky oil. We see it almost weekly. We don't keep track but there might even be a tendency for the older ones with longer 12 minute exercise to have the milky oil. We tell those customers to give the generator a good 30 minute run at least once a month. Simulating a power outage and having a loaded run is even better. Plus you get the satisfaction that the entire system is functioning as intended. Catching any issues before you are in the dark. That is free to the customer vs paying us to come out and do oil changes at a 6 month interval. We have customers that go either way. Then others that don't address it at all.
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Peddler
I don't think you can do that with a generac switch, though I am not too familiar with the Genmon system.
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BillM
I'm not familiar with the Genmon system.  Can someone explain to me how it can remotely do a full load test?  I get how you can remotely excercise the generator, I'm asking about the component where it gets the transfer switch to 'transfer' to gen power. 
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kf3cw
Thanks for that information Brian. I’ll just throw the breaker on the ATS as the lady at Generac customer service said to do once a month and let it run for 45 minutes and just reset the clocks. Very interesting thread here . I’m 79 but love learning new stuff. Appreciate all of your input 
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grsthegreat
im not sure how it works either, but heres a screen shot . not only does it reset the generators time and daylight savings time AUTOMATICALLY (done by turning on time sync option in settings  tab) i can simply either start start and stop the generator with a push of the ipad , or actually start and transfer load. it does a warm up sequence than transfers load. lights dont even flash. I can also reset exercise times if i want. all this without ever lifting the generator lid

genmon.jpg 
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Geoff Z
IN MY OPINION, GENERAC IS IGNORING A SERIOUS PROBLEM THAT IN THE END COSTS THE CONSUMER BIG $$$$.

We put these generators in harsh environments and expect absolute perfection out of them. I don't believe this to be a Generac issue but an environment issue. Some generators are subject to extreme cold and wind rushing above and around the generator. Condensation will happen it is inevitable. I don't believe Generac should tell every customer to do a 45 minute loaded test monthly because a few units suffer from extra condensation due to their own environment. How many people would that needlessly scare away from home standby? I have more customers that don't want to exercise because of fuel cost. Which is a big mistake. When we as dealers see condensation then I believe it is our responsibility to work with and educate that customer a longer monthly run is advised. We can also add an oil warmer which should help. We have not yet had one of our customers endure extra costs or repairs due to the milky oil. Other than the fuel to do the extended run or 2 quarts and a filter if they choose more frequent oil changes. Just my humble opinion.  
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Pville
grsthegreat wrote:
im not sure how it works either, but heres a screen shot . not only does it reset the generators time and daylight savings time AUTOMATICALLY (done by turning on time sync option in settings  tab) i can simply either start start and stop the generator with a push of the ipad , or actually start and transfer load. it does a warm up sequence than transfers load. lights dont even flash. I can also reset exercise times if i want. all this without ever lifting the generator lid


grsthegreat  -  When shutting down a genset, using this GenMon unit, does a cool down period occur as well?  I contacted an individual who builds these GenMon units and was told "According to jgyates, he can remotely stop his unit during an outage. This is not proven to work on air cooled units. Also it is not recommended to stop the unit during an outage remotely because it can cause equipment and property damage". I ask this  as you have had experience using the GenMon.  Have you had any issues when/if the generator is turned off while under load?  Thanks for any information.
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grsthegreat
Yes. But it only works when there is no outage. The genmon will not shut down my air cooled unit generator during outage. If I run a test with transfer when power is available, unit transfers back to utility then gen runs unloaded fir a minute. I never shut mine down under loads...never ever.

i don’t know why it would shutdown a liquid cooled unit. Same controllers in a way.
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Pville
grsthegreat  -  Thank you for the information.  I was hoping it would do so under load, primarily to conserve propane without having to trudge out in bad weather.  Like you I never shut down under a load.
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kf3cw
Thanks Geoff, I appreciate and totally agree with your point of view. I guess my frustration is that I don't live in a cold, humid , harsh area at all.  I would bet the weather here in Southern, MD is about average. And yet I have a SEVERE problem with water in my oil after just 3 months. I don't know why GENERAC wouldn't at least upgrade their software to give the consumer the opportunity to run the exercise cycle for 30-45 minutes in spite of the "environmental issues".  At the very least, ALL installers should explain to the to the customer the possibility of water contamination and their suggested way to counteract it when the system is installed as you apparently do. 
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UPS
Genmon does have the option of extending the exercise time. It's under Add-Ons, Enhanced Exercise.  Set that to On, and set whatever day, time, and runtime is desired.  It does not override the basic exercise scheduled in the Maintenance menu, so to avoid extra run sessions, the enhanced settings here can be set to overlap the basic setting.  
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BillM
To me, the generator should be designed to operate within the environment it's being sold to.  They should have either designed the generator with an oil heater or whatever is needed to slow the accumulation of condensation.  OR, they should have identified it and provided the consumer's an option to mitigate it.  Installing in Waukesha, WI, I put in the cold weather kit but if they would have said the oil turns into skim milk, so buy 'this' I would have.
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Geoff Z
The cold weather kit has always been available and can be added at anytime during the lifespan of the generator. Generac does recommend its use if the environment can be below 32 degrees. We just don’t see much need when the synthetic oil is used. I’d rather see the customer save the money. If problematic down the road then add it later. Some dealers put the cold weather kit on every installation. We offer it as an option. 
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patmurphey
Just for the record, what brand of air cooled standby generator has an exercise program that heats the oil enough to prevent condensation? ðŸ™‚
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78buckshot
patmurphey, the older Generacs like the pre-electronic governor had very little condensation issue, 12 minute exercise and a different crankcase breather set-up.
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Cobranut
78buckshot wrote:
patmurphey, the older Generacs like the pre-electronic governor had very little condensation issue, 12 minute exercise and a different crankcase breather set-up.


Newer EPA regulations likely require crankcase blowby to be recycled into the intake instead of to the air, which may contribute to the problem. 
At any rate, a 20 minute loaded test run once a month would be a lot better than running it every week for 5 or 10 minutes. 
The condensation builds up in the first few minutes of running, so fewer starts with a full warmup should minimize the problem. 
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78buckshot
I don't know why the 4000 series like the 4390's did/do not have much of an issue, the crankcase breather is piped to the air filter box but normally see very little oil mist and I don't recall finding milky oil in any of them.
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