Westinghouse i4500 Generator

MNRon I have the Magnum hybrid 3000w inverter/ charger for over 5 years now using everyday (fulltime 99% boondocking). I can use either my eu2000i or eu2200i to run the Carrier Air V 15k air conditioner at elevation as high as 6,000' with outside air temps in the 90's range. I did add a micro-air 365 to the A/C unit which made all the difference, before the micro-air it was hit and miss. I set the "loadshare" to 16a when above 5,000' this keeps the Magnum from faulting, but with your larger generator you shouldn't have a problem getting one going.

I also run my A/C off just batteries/ solar assisting for a few hours at times. I'm using LiFePO4 batteries which helps.

Here are the setting I've used since day 1 on the Me-Arc50 for the Inverter.
Favorites (can be changed to personal taste)
F1_ Bat amps - PT  ADC (present be produced)
F2_ AC output - 121 VAC/ 60.0 HZ
F3_ AC input - Amps= 15a (adjustable with incoming power)
F4_ Load amps - 0 amps AC
F5_ AC Amps - -2 amps

CRTL
01_ AC in Control - Auto Connect
02_ CHG Control - Multi Stage
03_ Gen Control - Off
04_ PT Control
• a_ PT Chg CTRL 1 - Multi Stage
• b_ PT Aux Relay - Control= Disengage
• c_ PT Alarm - Control= Off
• d_ PT Mppt Ctrl - 15 min sweep

METER
Inverting_ DC (present time reading)

01 DC Meters
• a_ DC volts (present time reading)
• b_ DC amps (present time reading)
02 AC Meters
• a_ AC output (present time reading)
• b_ Load amps (present time reading)
• c_ Input AC (present time reading)
• d_ Inv/ Chg amps (present time reading)
• e_ Input AC1 (present time reading)

SET UP
01 System Set up
• a_ Set Clock
• b_ Screen set up (press select) _ Brightness (50%),  Contrast (100%),  Power save (1 min)
• c_ Temp select - Fahrenheit
• d_ Max charge- Amps 200 adc
• e _ Link PT Chg - setting - yes

02 Inverting/ Inverter set up
• a_ Search watts - Off
• b_ LBCO setting - 12.0 vdc
• c_ AC In time - 6:00am-6:00pm
• d_ AC In VDC - 11.O-14.1 vdc
• e_ AC In SOC - 80%-100% SOC
• f_ Power up - Always off

SET UP INVERTING
03 Charger Set up
• a_ AC Input - Amp= (can be set to available shore power/ generator incoming power)
• b_ VAC Drop out - 80 VAC
• c_ Battery type - Custom (with in here absorb voltage can be adjusted)
• d_ Absorb done - Time= 0.1 hrs (minimum, can't be turned off)
• e_ Max charge - Rate= 100%
• f_ Max charge - Time= 12.0 hrs
• g_ Final charge - Stage= Multi
• h_ EQ Reminder - Days= Off

04 AGS SET UP - No AGS Present
05 BMK SET UP - No BMK Present

06 PT SET UP (Magnum pt controller follows Magnum inverter settings)
• a_ Battery Type - Linked
• b_ Absorb Done - Linked
• c_ Maxed Charge - Rate= 100%
• d_ Max Charge - Time= 12.0 hrs
• e_ Bulk Start (press select)
- select Bulk Start, Daily / sun up= yes
- set Bulk Start, Volts= 12.0
- set Bulk Start, SOC= 80%
• f _ PT Aux Relay - 10.0 to 14.0
• g_ PT Alarm - 10.0 to 14.0
• h_ Power Save PT - Display= 15 min

TECH
01 Temperatures (press select_ scroll)
- Inv BTS (present time reading)
- Inv TFMER  (present time reading)
- Inv FET'S  (present time reading)
- AGS Sensor 0ff
- ACLD Temp 32f
- PT BTS  (present time reading)
- PT Inductor  (present time reading)

02 Versions (press select_ scroll)
- Inverter: 1.2
- Remote: 4.0
- AGS: 0.0
- Router: 0.0
- ACLD: 0.0
- PT: 1.1

03 Inv Model - MSH3012H (3000w hybrid)
04 Fault History
05 Set up pin
06 Ext Control - No ext control
07 Show all - Menus= No
08 Load Defaults

The following parameters are for programming the ME-ARC Version 4 advanced control.

Setup 02B LBCO Setting: Volts = 12.0
Setup 03C Battery Type: = Custom
Set Absorb Volts: = 14.1v or  14.2v (depending on season)
Set Float Volts: = 13.6
Set EQ Volts: = 14.1
Set EQ Done Time: = 0.1
Setup 03D Absorb Done Time: = 0.1 (minimum)
Setup 03E Max Charge Rate: = 100%
Setup 03G Final Charge Stage: = Float

Bob213 - my Magnum inverter is feed from the shore umbilical and then feeds my whole RV through the panel. I tried starting with the inverter off, but no go there too. When the inverter is ‘off’ it passes through 60A per leg, but it still has the voltage integrity checks etc.

I’ve mess around some more and now am starting to think that I might have been too cute trying to limit the input current and have the boost take over. I’m thinking that it may be the input current limit was kicking in and not letting the genny do it’s job. And for some reason the boost function isn’t just additive to what’s coming in but instead might somehow be kicking out the source for another integrity check and then getting in a loop.

I’ve now upped the input limit to 27A (altitude based output of the genny) and it’s been running fine for quite a while. Given I’m getting cooling I’m done messing around tonight. Tomorrow I’ll try restarting with these settings, maybe even take input limit up to 33A (generator boost capability) or higher and let genny take itself out of the loop instead of Magnum dumping it out.

I’m hopeful that that will resolve my issue. Still don’t understand why Magnum boost doesn’t just add to incoming without forcing integrity check if that’s what it’s doing. I’ll mess around some more tomorrow and maybe call Magnum support on Monday.

Thanks for letting me think this through on-line…and for any suggestions still to come

Ron

Don't have your answer but I would like to learn more. Can you explain why you have both genny and inverter going at the same time. I would think even at altitude that the 4500w genny would be all you need. How does the inverter know when to come online?
Thank you for any answers.