[AT] OT : problems with rv ac portland coming soon .

[Cecil Bearden]

It sounds like your generator was not set to provide the rated wattage 
at 60cycle.  I have collected Onan generators for many years and have a 
couple of digital meters with frequency capability.  When I test a 
generator I load it with heaters (1500 WATT) and light bulbs to the 
rated capacity and check the frequency.  At 3000watt, it should hold 
frequency to 59 to 61 hz.  If not, I would take it back to where I got 
it.  Some of the late import generators have a shut down system to shut 
the motor off when the load drops the frequency more than 5 hz.  This 
keeps it from harming sensitive electronic devices on the load...

The dealers do the same things with a load bank, my system just costs a 
lot less....

Cecil in OKla

Ivan Cousins wrote:
> Slightly more technical ,
> first off I shut off everything in the camper to make sure there was nothing 
> else running .
>  Got my clamp on amp meter out , 1.6 a on the fan motor , 22 on the 
> compressor . 23.6 total x 120v =2832 watt surge  .  That is actual starting 
> current when I flip the switch ..   The gen is supposed to provide 3000 w 
> ,with 2700 rated . Thats cutting it close ,but it also states it can hold 
> 2700 for 30 min .   They claim that with the booster it will start all roof 
> mounted ac units . Doesnt seem to make any difference if the economy 
> throttle is on or off ,it just rumbles for a second and shuts off .  It has 
> a 30 a receptacle . Back to facts , I did install the hard start capacitor 
> like they suggest , without any noticable effect  .  ?    Bad booster or a 
> bad run cap ?   Ok now what is really inside the booster ?  You can loosen 
> up the cap ,the bottom half is a start capacitor , top is ?
>   I dont have any way to test the capacitors ,other than to grab the wire , 
> but aint no way thats gonna happen ! I learned all about capacitors back in 
> jr high . I knew a guy who would charge the darn things up and then pitch 
> them to some poor soul .  I was only dumb enough to catch one .
>  I also got out the regular colemann 2500 watt gen ,it will start the ac 
> with no problem . Its rated 2000 run 2500 surge .  But it turns at 3600 rpms 
> ,screaming at the top of its lungs .  The coleman only has a std 15 a 
> receptacle .  It will also start right up if its pluged into the outside 
> receptacle on the house .  120 v 15 aa circuit .
>    I do know where there is an ac unit in the scrap yard ,I will have to 
> swing by and scrounge up the capacitor and try swapping it out .
>   Well I will work on it tomorrow after I get home .  Ivan
>  
> 
> 
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