9000 watt predator generator with parallel 6000xps.

[Turbo_Gunner]

Decided to try the predator 9000/7500 generator with 2 6000xps, used a 50 amp 4 prong range outlet box, split the wiring from the outlet out to each generator port of the inverters, made a cord with a 50 amp range cord from the generator to the outlet plug. Ran it for about 3 hours tonight to see how it went and after some adjustments we had no issues and was charging great. My house doesn’t get close to the max of this generator unless I try to have water heater, we’ll pump, and air conditioning going at once, winter here so no need for ac, and flipped the breaker to the water heater just to be safe, after a it flipped it back on and still had no issues. Thoughts?

 

[BentleyJ]

The 6000XP seems to be fairly forgiving regarding qualifying gen power. Frequency from the generator is showing as 54.44Hz. That's a little low. Seems like you are referring to the Harbor Freight conventional style 9000/7250 generator not the 9500 Inverter style. If so there may be a mechanical adjustment on the governor to carb linkage that can be adjusted to get the engine RPM up to 3600 under load which will give you the desired 60Hz electrical output.

 

[Turbo_Gunner]

The 6000XP seems to be fairly forgiving regarding qualifying gen power. Frequency from the generator is showing as 54.44Hz. That's a little low. Seems like you are referring to the Harbor Freight conventional style 9000/7250 generator not the 9500 Inverter style. If so there may be a mechanical adjustment on the governor to carb linkage that can be adjusted to get the engine RPM up to 3600 under load which will give you the desired 60Hz electrical output.

Thanks for the response. And yes this is the non inverter predator, I did think that also and will be adjusting for that this morning. Will keep posted.

 

[Offgrid Jungle]

What is your gen charge rate setting? I set mine to 2000 watts to leave overhead to carry the house loads as needed. Remember, the gen carries the house loads + charges the battery at whatever rate you set up.

 

[Turbo_Gunner]

What is your gen charge rate setting? I set mine to 2000 watts to leave overhead to carry the house loads as needed. Remember, the gen carries the house loads + charges the battery at whatever rate you set up.

I set it to 3500 watts lastnight just for testing, no big loads on in the home.

 

[Madcodger]

Decided to try the predator 9000/7500 generator with 2 6000xps,

Thoughts?

I think if it works well for you that's awesome, and I'm glad to know it works with the 6000XP. I went a different route by connecting the Predator 13000W generator to two Chargeverters and connecting it all to a busbar rather than through the generator connection of the inverters. The upside is that we don't worry about the non-sine wave power of the generator or having it bog down with a big load. The downside is the expense, and not seeing the generator's contribution in either the EG4 app or on Solar Assistant (they think the batteries just magically recharge). If your approach works well for you, that's awesome and it's good to know that generator works with that inverter.

 

[Turbo_Gunner]

I think if it works well for you that's awesome, and I'm glad to know it works with the 6000XP. I went a different route by connecting the Predator 13000W generator to two Chargeverters and connecting it all to a busbar rather than through the generator connection of the inverters. The upside is that we don't worry about the non-sine wave power of the generator or having it bog down with a big load. The downside is the expense, and not seeing the generator's contribution in either the EG4 app or on Solar Assistant (they think the batteries just magically recharge). If your approach works well for you, that's awesome and it's good to know that generator works with that inverter.

So far it’s working like a top, I just make sure to keep the loads small while the generator is going, made the well pump kick on lastnight while charging and the generator seemed to handle it well. Currently have it set to 4200 watts. I’m trying to decide if I wanna go chargeverter route to eliminate potential inverter problems, or buy the new 13000 watt predator generator and keep it the way it is. If it keeps going well I think imma go with the 13000.

 

[MattMan119]

So far it’s working like a top, I just make sure to keep the loads small while the generator is going, made the well pump kick on lastnight while charging and the generator seemed to handle it well. Currently have it set to 4200 watts. I’m trying to decide if I wanna go chargeverter route to eliminate potential inverter problems, or buy the new 13000 watt predator generator and keep it the way it is. If it keeps going well I think imma go with the 13000.

Holly cow you did this with the non-inverter version ? That is fantastic .. I have an inverter 9500 super quite, and a regular 8750w .. I always assumed i would use the chargeverter with mine.. But this is great news for those that do not have one of the inverter types.

 

[Turbo_Gunner]

Holly cow you did this with the non-inverter version ? That is fantastic .. I have an inverter 9500 super quite, and a regular 8750w .. I always assumed i would use the chargeverter with mine.. But this is great news for those that do not have one of the inverter types.

Yessir! Non inverter predator 9000/7250, keep the loads small and adjust settings accordingly seems to do the trick.

 

[Madcodger]

or buy the new 13000 watt predator generator and keep it the way it is. If it keeps going well I think imma go with the 13000.

While I use Chargeverters, I have that 13000 watt. It's really only a 10000 running watt generator, and a bit less than that if you use propane or NG. One quirk I've noticed is that if I haven't started it for 3-4 weeks I often need to turn the fuel selector to propane, NG, or off, and then back to gas, to get it to run on gas. It's sometimes a little finicky to start as well. Not the worst generator I've ever owned but also not the best. I may replace it next year with a propane automatic, or even a small diesel.

 

[Jsauerii]

That is the exact generator I have, I couldn't find the THD rating so I did a quick search to see if anyone was doing it regardless and this popped up.
I have yet to wire the gen but looking at ice storm this weekend and no way I am keeping charged up for the cloudy days coming. I didn't want to damage my dual 6000 xp's to be certain.

FWIW IMO you have those two XP's way too close to each other, you are feeding the exit heat of the right one directly into the left intake. I have mine spaced about 12" and I think it was too close so I grabbed a pair of adjustable vent deflectors from my local hardware store that had a stick tape side and popper one on the rights exhaust and the lefts intake so its being diverted as much as possible but you didn't even leave enough room between the two to do that I don't think. I am not sure you could even do what my original idea was with so little clearance. I was going to use some of that dollar tree foam board to make an exit duct and run that heat up into the attic during the summer and divert it into the room in winter. Anyways just something to consider.

Other topic back at hand I think I will go ahead and wire mine up for a trial run. I don't use anything heavy outside the cloths dryer in winter and I can avoid using that while the gen is running so I think I will shoot for about what you did with 4000 to 4500 input to keep it at about 50% load.

BTW what size wire did you use? Looks very small compared to mine.

Decided to try the predator 9000/7500 generator with 2 6000xps, used a 50 amp 4 prong range outlet box, split the wiring from the outlet out to each generator port of the inverters, made a cord with a 50 amp range cord from the generator to the outlet plug. Ran it for about 3 hours tonight to see how it went and after some adjustments we had no issues and was charging great. My house doesn’t get close to the max of this generator unless I try to have water heater, we’ll pump, and air conditioning going at once, winter here so no need for ac, and flipped the breaker to the water heater just to be safe, after a it flipped it back on and still had no issues. Thoughts?

 

[MakeMePower]

if its like my 7k, there is a screw under the fuel tank to adjust the speed/frequency, set it to 62 with no load on it.

 

[Jsauerii]

I meant to ask if he found that just in case. I will look at mine tomorrow to see.

if its like my 7k, there is a screw under the fuel tank to adjust the speed/frequency, set it to 62 with no load on it.

 

[Turbo_Gunner]

That is the exact generator I have, I couldn't find the THD rating so I did a quick search to see if anyone was doing it regardless and this popped up.
I have yet to wire the gen but looking at ice storm this weekend and no way I am keeping charged up for the cloudy days coming. I didn't want to damage my dual 6000 xp's to be certain.

FWIW IMO you have those two XP's way too close to each other, you are feeding the exit heat of the right one directly into the left intake. I have mine spaced about 12" and I think it was too close so I grabbed a pair of adjustable vent deflectors from my local hardware store that had a stick tape side and popper one on the rights exhaust and the lefts intake so its being diverted as much as possible but you didn't even leave enough room between the two to do that I don't think. I am not sure you could even do what my original idea was with so little clearance. I was going to use some of that dollar tree foam board to make an exit duct and run that heat up into the attic during the summer and divert it into the room in winter. Anyways just something to consider.

Other topic back at hand I think I will go ahead and wire mine up for a trial run. I don't use anything heavy outside the cloths dryer in winter and I can avoid using that while the gen is running so I think I will shoot for about what you did with 4000 to 4500 input to keep it at about 50% load.

BTW what size wire did you use? Looks very small compared to mine.

All battery connections minus the added charge controller are 4/0, Pv is 10 gauge, 6 gauge on the rest.

And yea I agree the inverters are close together, and plan on building some sort of heat deflection later on, but as of right now these things have barely put out any heat, the 6000ex’s would run you out of that room, “was built for the ex’s in mind and letting them be the batteries heat source, so the room is limited space, with the xp’s I had to add heat to the room.

 

[Turbo_Gunner]

if its like my 7k, there is a screw under the fuel tank to adjust the speed/frequency, set it to 62 with no load on it.

Yes, I meant to come back to an earlier reply about frequency to add this point.

 

[Turbo_Gunner]

That is the exact generator I have, I couldn't find the THD rating so I did a quick search to see if anyone was doing it regardless and this popped up.
I have yet to wire the gen but looking at ice storm this weekend and no way I am keeping charged up for the cloudy days coming. I didn't want to damage my dual 6000 xp's to be certain.

FWIW IMO you have those two XP's way too close to each other, you are feeding the exit heat of the right one directly into the left intake. I have mine spaced about 12" and I think it was too close so I grabbed a pair of adjustable vent deflectors from my local hardware store that had a stick tape side and popper one on the rights exhaust and the lefts intake so its being diverted as much as possible but you didn't even leave enough room between the two to do that I don't think. I am not sure you could even do what my original idea was with so little clearance. I was going to use some of that dollar tree foam board to make an exit duct and run that heat up into the attic during the summer and divert it into the room in winter. Anyways just something to consider.

Other topic back at hand I think I will go ahead and wire mine up for a trial run. I don't use anything heavy outside the cloths dryer in winter and I can avoid using that while the gen is running so I think I will shoot for about what you did with 4000 to 4500 input to keep it at about 50% load.

BTW what size wire did you use? Looks very small compared to mine.

Also I think you’ll find it’s a great solution and works well for emergency battery charging in these not ideal solar days we are having here in ky rn.

 

[solaratcamp]

for the guys talking about your generators, are any of you using a two wire auto start funcion to auto start and stop your generator. if so how did you do it? Cant find a 240volt 6-10KW range inveter gen with two wire start. Can find ones with ats plugs, unsure if this would work with 6000xp.