islandman
I just obtained a relatively new, still in the box, 20kw Model 5887 from a neighbor who decided they did not want it. It does not have any automatic standby switch, which is good because I have, and want to keep, my manual disconnect to utility power that I use now with my large portable generator. I just want to make sure that I wouldn't have any problems simply wiring it to the generator side of my manual disconnect without using any automatic standby switch and turning the generator on manually when needed. Thanks.
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ceb58
islandman;8032 wrote:
I just obtained a relatively new, still in the box, 20kw Model 5887 from a neighbor who decided they did not want it. It does not have any automatic standby switch, which is good because I have, and want to keep, my manual disconnect to utility power that I use now with my large portable generator. I just want to make sure that I wouldn't have any problems simply wiring it to the generator side of my manual disconnect without using any automatic standby switch and turning the generator on manually when needed. Thanks.


What is the amp rating of your disconnect? What amp service do you have? What is the amp rating of the gen. breaker? 100amp or 125amp.
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techntrek
You might want to keep the generator set to Auto so it runs its weekly exercise routine without you having to remember to do it manually.
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islandman
20kw

My manual disconnect breaker is 100amp and I believe the generator is the standard 100amp. I plan to shut the breakers of my heat pump/auxillary strip heat off in the house panel when we have an outage prior to disconnecting utility power and turning generator on. This generator will be used for what we hope will be shorter storm outages. I plan on installing a diesel unit in the future to handle longer term outages which we can have on this island if the undersea cable has problems. We have been out for as long as two weeks before the coop brought in generators on trucks to run the island grid until cables were repaired.
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ceb58
islandman;8036 wrote:
My manual disconnect breaker is 100amp and I believe the generator is the standard 100amp. I plan to shut the breakers of my heat pump/auxillary strip heat off in the house panel when we have an outage prior to disconnecting utility power and turning generator on. This generator will be used for what we hope will be shorter storm outages. I plan on installing a diesel unit in the future to handle longer term outages which we can have on this island if the undersea cable has problems. We have been out for as long as two weeks before the coop brought in generators on trucks to run the island grid until cables were repaired.


Just trying to figure out what you have. Do you have a manual transfer switch or a breaker interlock on the panel.
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VHF
Does the 5887 have a battery charger installed in the generator or is it expecting a charger to be located in the transfer switch?

In either case, you'll need a charger [I]somewhere [/I]configured such that the charger gets 120VAC power [I]both [/I]when on utility power and when you are running on generator power.

In addition to keeping the battery fully charged, the charger effectively powers the control board--without the charger working, the battery will be run down in just a few days (unless of course you remove the 7.5A main fuse.)
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islandman
answers to questions

I use an interlock on a panel that is out on my wellhouse as my manual disconnect. The wellhouse also has power to use for the battery charger while under utility or generator power.
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ceb58
islandman;8047 wrote:
I use an interlock on a panel that is out on my wellhouse as my manual disconnect. The wellhouse also has power to use for the battery charger while under utility or generator power.


Then you will be fine with the 20kw.



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My manual disconnect breaker is 100amp and I believe the generator is the standard 100amp


Your equipment must be rated for the max. ampacity of ether your service or gen. A 20kw works out at 83 amps but code allows you go to the next standard size breaker which is 100amp.
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