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Old 01-24-2022, 05:35 PM   #1
Notanlines
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EMS location

Anyone have an idea where the EMS is located in a 40RSSA or similar, or if the system can be bypassed?
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Jim and DW 50 years Brenda
2017 40rssa, also a 2015 Salem (for Alaska)
2019 F450, ruby red
Harley Road King & sidecar
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Old 01-31-2022, 09:41 PM   #2
CHAPS2018
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Quote:
Originally Posted by Notanlines View Post
Anyone have an idea where the EMS is located in a 40RSSA or similar, or if the system can be bypassed?
Just double checking--you are referring to the system that monitors incoming power (ie, grounds, correct wiring, over/under voltage) correct? A example would be https://www.google.com/aclk?sa=L&ai=...gQIARBF&adurl=

Alternately there is a PMS (power mgmt (or control) system) that sheds loads inside the coach depending on what type of power source you have. an example would be: https://www.precisioncircuitsinc.com...hure-Rev-B.pdf
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Old 02-01-2022, 04:58 AM   #3
Notanlines
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Chaps, yes, the first one. We have both, but only curious about the first one, the actual EMS box itself.
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Jim and DW 50 years Brenda
2017 40rssa, also a 2015 Salem (for Alaska)
2019 F450, ruby red
Harley Road King & sidecar
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Old 02-01-2022, 10:10 AM   #4
CHAPS2018
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regarding bypass--if you have the progressive industries EMS there should be a remote box (either with or without a digital display) with a bypass switch.

Pics of each below.

Snippet from manual: ByPass: This switch is located on the remote display and allows the user to bypass the EMS in the event of failure, thus allowing AC power into the RV. This does not disable the surge protection portion of the EMS; however, all other features are disabled.

Of course, if you want to fully bypass it you will need to splice the 6Ga wires from the coach supply wiring to the distribution panel. I carry these just in case I run into problems. https://www.lowes.com/pd/Gardner-Ben...B&gclsrc=aw.ds
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Old 02-01-2022, 05:11 PM   #5
Notanlines
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I just can't find the box.
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Jim and DW 50 years Brenda
2017 40rssa, also a 2015 Salem (for Alaska)
2019 F450, ruby red
Harley Road King & sidecar
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