Community Forums

MRUSA14 · 07-12-2014, 08:51 PM

Has anyone successfully run two AC's on 30A in an Anthem or Cornerstone? I was able to do this in my Beaver but it had a propane fridge, so I am not sure if it will work in my Anthem.

brobox · 07-12-2014, 09:04 PM

I installed the hardwired model and just as I finished someone posted about using a 220V appliance cord that already had the terminals attached. They said it was easier to work with and cost about the same. Next time I was as Lowe's I looked at them and they would be much easier to work with and actually cost less than romex and terminals.

I like projects so I installed the HW model. Both models are good, having one is the important thing.

Saltydog44 · 07-13-2014, 08:47 AM

Quote:

Originally Posted by MRUSA14

Has anyone successfully run two AC's on 30A in an Anthem or Cornerstone? I was able to do this in my Beaver but it had a propane fridge, so I am not sure if it will work in my Anthem.

Haven't tried two A/C's but we couldn't run one and the electric Aquahot.

brobox · 07-13-2014, 09:42 AM

I tried to run one A/C on 20 amp....that didn't work on the Entegra either. I am going to turn everything else off, chargers, refrig, etc. and try it again.

Marcosdad · 07-13-2014, 09:54 AM

Some other grad of the Spartan Academy help me out here, (my notes ended up on Lois Lerner's hard drive) but I recall Ted Cook telling us that one may run two A/C's if the charging amperage is reduced to 5 amps. This provides adequate power for the A/C's while depleting battery power to run inverter stuff. Then when A/C is not required, increase charging amperage to top off batteries. Anyone???

DSL417 · 07-13-2014, 09:54 AM

Quote:

Originally Posted by MRUSA14

Has anyone successfully run two AC's on 30A in an Anthem or Cornerstone? I was able to do this in my Beaver but it had a propane fridge, so I am not sure if it will work in my Anthem.

Yes...I did. Just couldn't use much in the kitchen. OK for TVs with two AC and some lights. I was surprised. Haven't worked out the math of the load amperage.

MRUSA14 · 07-13-2014, 11:26 AM

I surmised that you could. Glad to hear confirmation.

It might also help to turn off one inverter and set the other to 5A input.

voltdoc · 07-13-2014, 01:02 PM

Probably a good approach while on 30A (or less) is to set the inverter(s) "Shore" setting to 5A (the lowest it will go) and turn off the AquaHot electric element. Also turning off the Humidity Control on the fridge might help a bit.

The Shore setting just limits how much power the battery charger can pull from the shore power. Unless your house batteries are severely depleted you should not have any issue with that setting. Even when "Shore" is set at 5A, the charger can still deliver close to 50A of 12 volt power to the batteries and 12 volt loads.

The electric element in the Aquahot when active (and its not active all the time) accounts for almost 14 Amps (1650 watts) - just about half the power you have available with 30A service. Just leave the Aquahot electric element off and run on diesel/propane for hot water. That gives you a lot more room to run other loads - you should be able to run two A/C units plus the fridge with less chance of popping the breaker at the pole. You might still need to shut down one of those AC's to run the dryer.