3000W Chinese Gensets Info.

jlaustin wrote:

MrWizard wrote:
If me , I would follow the Professor's example with the cylinder ?, this is where the heat is generated 'pun intended' and you don't want the engine to overheat & seize, if the engine temp is where it belongs, then everywhere else should also be OK.

I'm only up to page 626 on attempting to catch up on the thread!:B

Is there a recommended location for the probe on the cylinder - it's going to be very different out on a fin versus deep between the fins, or, in the direct path of the cooling air versus out of the airstream?

Regards,
John

Depends......

If you have an adjustable thermostat like the Fenwall I have you can put it most anywhere.

If you use a fixed temperature switch like a 180 degree sensor from a car over the cylinder is a good location.

We are looking at two different things. One is high temperature shut down, the second is measuring/monitoring temperature.

I have found if the air temperature inside the enclosure, near the generator, goes over 160 degrees we have a problem. You can monitor this at most any point in the air flow exit path away from the exhaust. Just keep in mind that if the air temp is over 160 the temperature inside the alternator is well over 190, which is the break down point for the armature windings enamel insulation.

I did hit 150 in the "cave" last summer running the A/C for a long period of time. I got worried but it did not go higher. You could smell the results of the heat - which was disconcerting to me.

One thing you MUST remember is as the outside temps go up, cooling is reduced - even with a stock outside Chinese genny. Additionally, as the temps go up we want more cold from the A/C which imposes a heavier load on the genny and generates even more heat. Truth is the Chinese gennys we play with are not really adequate for running a 15,000 BTU A/C on an RV for long periods of time when the outside temperatures are in the upper 90's - no matter where they are located. This is one of the reasons I converted a 6,000 BTU window unit to fit in a Dometic RV rooftop cabinet for the bedroom in the fiver. At least we do not go to bed with sweat rolling off our bodies on those near 100 degree days.