Community Forums

GeneCanfield · 04-08-2021, 09:58 AM

I am looking for help installing AGS from my Xantrex 3012 and a duo therm thermostat to my 8KW Onan QD. Has anyone DIY'ed this. I have pulled the
gen start switch from the dash and started poking around and am a little confused by the readings Im getting from my VOM. So if anyone has already gone through this and could save me some time it would be greatly appreciated. I purchased this Alpine a year ago and the PO had the 3012 installed but did not install the AGS. The install manual shows about 15 different ways to wire it.

Cinequip · 04-08-2021, 12:22 PM

Gene, I also have an '09 and my coach has the AGS installed from factory. My AGS is hidden behind the Xantrex control panel, which is located in the cabinet above the entry stairs (I'm a front door). When I upgraded to the SW3012 inverter, I also had to replace the control panel and AGS module. It was as simple as plugging in the existing cabling to the new boxes, which went into the same locations. The wiring to the Dometic thermostat was already in place, and works fine with the new AGS.

GeneCanfield · 04-08-2021, 12:50 PM

Thanks Scott, Mine did not have AGS installed so I am starting from scratch. Im going to have to run a cat5 or 6 cable to the inverter and a pair of wires to the thermostat. I am hoping someone on here can show me they way they wired everything and save me some time. The install instructions are kind of vague and when I started poking around with a volt meter I got some results that confused me even more.

Cinequip · 04-08-2021, 11:08 PM

Don't you have an SCP (System Control Panel) inside the coach somewhere? The AGS plugs into the spare RJ45 jack on the back of the SCP. Shouldn't have to run another cat 5e cable to the SW3012, if you have an SCP.

Just out of curiosity, what are the last 5 of your VIN?

sandy1 · 04-10-2021, 08:48 AM

As Scott said the loom was standard and wiring should be where your inverter
Control panel is located. AGS on these was an added module and just needs to be programmed into inverted control panel

GeneCanfield · 04-10-2021, 11:23 AM

Yes the xanbus connection is simply plug and play. I am going to have to run a cat 5 or 6 wire to either the inverter or the controller but that is the easy part. its the wiring from the ags module to the generator that is kind of a pain figuring out.

GeneCanfield · 04-10-2021, 04:39 PM

The last 5 of my vin are 75816 one of the last ones made.

bcbowers · 04-11-2021, 07:59 AM

Gene, I have performed an conversion on my ‘03from the old AGS to the newer Xantrex AGS after replacing my Freedom 458 with an SW2012.

Your first step is to check the gen start switch wiring to determine if the individual wires are stamped with identification as to its purpose. My old AGS and the gen switch wires were both stamped on each wire for identification. I made a correlation table between new and old harness and then spliced accordingly. I may still have that table on my computer but can’t look until after church. I’ll let you know.

GeneCanfield · 04-12-2021, 07:56 AM

Thank you, I have my switch out and there are no marks on any of them. I also have the onan wiring diagram and the numbers on the diagram do not correspond to anything on my switch. I have a good idea which ones are which but I would hate to hook something up wrong and cause any damage to the Onan.

sandy1 · 04-12-2021, 11:32 AM

On the wire loom wires there is stamped a number and normally a wire name about every 12” along the wires. This is the way these wiring harness was manf
The number will coorispond to numbers on alpine wire diagram. If you have alpine owners manual (usually gray folder) int wiring diagrams were folded in the back. They are also available on alpine coach association tech library. These looms were made for all coaches so the ags wiring should have already been in loom just not terminated or exposed at monitor location

sandy1 · 04-12-2021, 11:53 AM

Sample of wire markings
These markings are every 12-18 inches along entire length of wire

GeneCanfield · 04-12-2021, 01:45 PM

This helped a lot. I had to dig out the plug from behind the dash and untape it but I found the wires are marked the same as yours. This was really all I needed. Guess I should have dug deeper. Thank you.

Gene

Cinequip · 04-12-2021, 06:17 PM

Thanks for the VIN. You are the 2nd or 3rd coach from the end of the line. The owners of 75818 report theirs was the last one delivered before the doors closed. There are a few VIN's after that, but those were completed by others who bought partially finished coaches at auction.

I'm 75809.

GeneCanfield · 04-13-2021, 09:13 PM

Scott, My RV is kind of unique from what I have seen. They must have been running out of parts at the end. No power basement slides and no aqua hot. And no AGS..HAHA until now. I got everything wired and now just have to run the wire from the dash to the controller which is located towards the rear. Also have a front kitchen and a hallway to the bedroom. I am very happy with it though. Plenty of room for the 50 inch tv in the back. Custom made desk and dinette table. I am a tinkerer and have just about got everything fixed the way I want it. Just a couple more things to do.

Gene