Skip to main content ↑ ↓
Topic: Recommendations for Inverter for older coaches [split from Re: Transfer switch(es) and inverter] (Read 696 times) previous topic - next topic - Topic derived from Transfer switch(es) a...

Re: Recommendations for Inverter for older coaches [split from Re: Transfer switch(es) and inverter]

Reply #20 –
Here we go! IMHO, a 3000W unit would more than do the trick. Here are the loads, and you guys please please guide me on this:
CPAP  200W  Max
CPAP  200W  Max
Coffee Pot  1500W
Most everything else on the coach:  66.7 Amps  Leg 1
                                                                  62.1 Amps  Leg 2
(no watt figures on the coach itself.
I mainly want to be able to keep both CPAPS running and the ice box (refrigerator to the younger world. I don't guess I knew what a fridge was till I was 10-12 years old.)
Please, your recommendations will be happily accepted....

Re: Recommendations for Inverter for older coaches [split from Re: Transfer switch(es) and inverter]

Reply #21 –
OK, the largest load you want to be able to run (and only for a short time) is 1500 watts.

So, a 2000 watt PSW inverter/charger will fit your needs.

Buying larger is both more $$ and more standby load on the battery bank.

Re: Recommendations for Inverter for older coaches [split from Re: Transfer switch(es) and inverter]

Reply #22 –
You want to use an inverter/charger with a very low power consumption just to be on and one that is efficient.

Many are using Victron equipment for an integrated suite of equipment for many funtions. A Multiplus 3000VA is a common choice for an inverter. Discounts for Forum members at Bay Marine. Quite a bit cheaper than a comparable Magnum and a 5 year warranty as well.
Victron MultiPlus 3000VA Inverter/Charger

You can get a remote panel but you don't have to.
Victron Digital Multi Control 200/200A

And a Victron BMV712 battery monitor rounds out a basic setup.
Victron BMV-712 Smart Battery Monitor with Built-In Bluetooth

If you don't have an inverter now then some 120v wiring may be needed.

If you need help just ask.  Many here to help.

Re: Recommendations for Inverter for older coaches [split from Re: Transfer switch(es) and inverter]

Reply #23 –
Quote from: warbirdlvr –
I mainly want to be able to keep both CPAPS running and the ice box (refrigerator to the younger world. I don't guess I knew what a fridge was till I was 10-12 years old.)
Please, your recommendations will be happily accepted....
FWIW, I buy sanitized used CPAPs from my vendor that run on 12 volts DC.  I pay around $100-150 for one.  I have bought several because I use them for off-road, tent-camping trips, and they die from abuse.  (I recently bought a sealing, padded case which should reduce the carnage!)  In the coach, I plug them into an accessory outlet.  When in the tent, I use one of these - charges in the car, and a charge lasts for several nights.

Amazon.com : 300W Solar Generator, FlashFish 60000mAh Portable Power Station...

No doubt a properly-sized inverter would be the most convenient route
As an Amazon Associate Foretravel Owners' Forum earns from qualifying purchases.

Re: Recommendations for Inverter for older coaches [split from Re: Transfer switch(es) and inverter]

Reply #24 –
The top ranked controller in many surveys, the Midnite Classic 150 is made in the U.S. has a fan, larger connection lugs than many others, $125 repair no matter what is wrong after 5 year warranty. It was number 1 back when we bought it in 2008 also. It is taller so accommodation has to be made for that. Flawless for us since we purchased it. Built like a tank and with all the bells and whistles. Read reviews below.

Best Solar Charge Controllers in 2021 [Reviews, Pricing & Specs] - Unbound Solar

13 Best Rated MPPT & PWM Solar Charge Controllers – Buyer's Guide – RobotoId™

Pierce

Re: Recommendations for Inverter for older coaches [split from Re: Transfer switch(es) and inverter]

Reply #25 –
By having the Cpap on 12 volts would consume much less battery than powering them with an inverter.

Re: Recommendations for Inverter for older coaches [split from Re: Transfer switch(es) and inverter]

Reply #26 –
Quote from: red tractor –
By having the Cpap on 12 volts would consume much less battery than powering them with an inverter.

Yup.  Each "conversion" is a loss of efficiency.

Re: Recommendations for Inverter for older coaches [split from Re: Transfer switch(es) and inverter]

Reply #27 –
OK, folks, here's what I have:
A  WFCO 9875 75 amp converter/charger
A  PD 52 power switch
The isolator on the frame looks OE.
I don't know for sure, but to me, from what I can glean, the converter and switch have been replaced? Yes/No?
As always, thanks in advance!!!!!

Re: Recommendations for Inverter for older coaches [split from Re: Transfer switch(es) and inverter]

Reply #28 –
I have one 9160 with smart wizard controller.  I also power the fridge  and tech center with a 2000watt Chinese PSW inverter.  I hope to also run my new Minisplit through the same 2000 watts.  Fridge draws average of 40 wattts and splikes to 78 . The AC should use about 900 on eco mode with spike to  1200.  On paper it works out . 
  The gen set runs the microwave and coffee maker .  I dont anticipate running those from battery .  Too much juice and conversion  loss .

 I may add one of the same PSW inverters simply for redundancy .