Yamaha iSEB 3000

Hi,

Thanks! I'll set the input on the Magnum to 23 amps when I use the genny. If I understand correctly that should leave 500 watts of surge for 10 seconds and another 200 watts from the genny itself.

I'll be running the genny/magnum combination for the first time on Friday. The forecast is for 31 c (88 f) so I'll need to keep the RV cool.

The 23.33 amps is the rated amps for resistive, inductive, capacitive, or any combination of these element type loads.

The VA rating does not discriminate between the various load types.

23 amps for a resistive load at 120v. I think you are better to set it for 20a for some PF and voltage fluctuation headroom. Maybe even less if running eco throttle. But you definitely want to have amps high enough to power the air plus some charging the battery.

JMHO, worst case bump it up or down a bit.

It utilizes the starting battery for additional capacity.

Looking at the specifications, that generator is rated 2800 VA continuous, 3000 VA Surge, and then the boost feature quote "The Boost Control Unit (BCU) senses when extra power is needed and boosts output for up to 10 seconds, giving air conditioners, power tools, and other equipment the extra boost of power they may need to start quickly and efficiently."

It looks like the Boost technology is just another way of looking at surge demand.

Hi Ken,

Thanks for explaining--but does it mean I have 23 amps of output (plus the boost from the Yamaha)?

2oldman wrote:

pianotuna wrote:
The generator is 2800 VA. Does this "translate" to about 23 to 24 amps?

Throw in a PF (power factor) and the answer is yes. Not that I know how to find that number.

Many sites to choose from discuss this. Salvo would know.

Power Factor (PF) = Power (watts)/ Apparent Power (Volt-Amps)

EDIT: Oh, and power devices such as generators or transformers, etc... are actually rated in VA not watts.

pianotuna wrote:
The generator is 2800 VA. Does this "translate" to about 23 to 24 amps?

Throw in a PF (power factor) and the answer is yes. Not that I know how to find that number.

Many sites to choose from discuss this. Salvo would know.

pianotuna wrote:
Hi,

The generator is 2800 VA. Does this "translate" to about 23 to 24 amps?

I want to know so that I can set up the Magnum "boost" inverter so as to not over load the Yamaha.

Thanks in advance.

2800VA/120V = 23.33A