If your inverter is pure sine wave, you would have a better chance. The older ones are not, and I know I had to run my microwave three times as long under the inverter as shore power.
In the case of your compressor, a non-pure wave might be bad for it. If it is, I would just pay attention to your alternator, see if it is overheating (the alt. High temp sensor is good for that) or if it is throwing off bits of your belt. Bill Coleman Entrada, Erie, PA From: Edd Schillay [mailto:e...@schillay.com] Sent: Saturday, September 19, 2020 11:13 AM To: Stus-List Subject: Stus-List Re: Alternator / Inverter / Air Conditioning Joe, Thanks. I wasn’t looking to run all night at anchor. I was only thinking if we were moving under power with little to no breeze behind us, if it were possible to cool down the cabin a little, or at least get some relief standing in front of a vent for a short time. All the best, Edd ———————————————- Edd M. Schillay Captain of the “Starship Enterprise” C&C 37+ | Sail No.: NCC-1701-B Venice Yacht Club | Venice Island, FL www.StarshipSailing.com ———————————————- 914.774.9767 | Mobile ———————————————- Sent via iPhone 11 Pro iPhone. iTypos. iApologize On Sep 19, 2020, at 11:01 AM, Joe Della Barba <j...@dellabarba.com> wrote: That would be a marginal operation at best. The most benign thing that would go wrong would be the inverter overheating and shutting down. If that doesn't happen, running an alternator that hard for hours on end is pretty tough duty, I would not be surprised if the alternator died an early death. The worst case scenario is trying to run the AC at anchor. Long ago I dealt with a company that was selling 3 KW AC generators that belted off the main engine. End result was people running their engines all night to run the AC and carbon fouling them to death. Joe Coquina On 9/19/2020 10:24 AM, Edd Schillay wrote: Listers, As some of you already know, we installed air conditioning on the Enterprise a couple of months ago. We are currently at the dock on Captiva Island and the cabin is a glorious 75 degrees. According to the installer, at startup and maximum compression, the air conditioning on the boat will draw 1400 Watts. Years ago, when I repowered the boat with a new Beta 30 engine, I added a 120A alternator and a 2000W inverter, mostly so my wife can use her hairdryer when under way. My AC panel is switchable between Shore Power and the Inverter’ power. So here’s the question: Do you think it’s possible to actually run the air conditioning with the engine running? The math seems to work, but I am hesitant to give it a try. And, if it doesn’t work, what would actually happen? Are we talking a tripped breaker or something bad like alternator issues. Signed, Clueless in Captiva. All the best, Edd ———————————————- Edd M. Schillay Captain of the “Starship Enterprise” C&C 37+ | Sail No.: NCC-1701-B Venice Yacht Club | Venice Island, FL www.StarshipSailing.com ———————————————- 914.774.9767 | Mobile ———————————————- Sent via iPhone 11 Pro iPhone. iTypos. iApologize _______________________________________________ Thanks everyone for supporting this list with your contributions. Each and every one is greatly appreciated. If you want to support the list - use PayPal to send contribution -- https://www.paypal.me/stumurray _______________________________________________ Thanks everyone for supporting this list with your contributions. Each and every one is greatly appreciated. If you want to support the list - use PayPal to send contribution -- https://www.paypal.me/stumurray
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