Intellitec EMS Problem
I have an Intellitec Model 800 EMS in my 50 amp coach. Lately it has been doing strange things. When plugged into 120v power the display indicates 50 amp service. When running on the genset, the di...
Forum Discussion
You sir are full of yourself and wasting my time. You accuse me of sarcasm yet slander all engineers. Who do you think designed this system. It was not an RV repairman. Please ignore my posts in the future.
For everyone else, after digging in the manuals I see that my dometic ACs have a dedicated load shedding feature that allows the EMS to disable the unit. This is two wires that are routed to the normally open contacts of the relay. This means that the two wires must be connected for the load shed to function. This also means that the EMS must close the relay. If you simply pull the connector or the fuse, no load shedding occurs. This explains why my ACs continued to run after I pulled the control board fuse. This load shedding can be for one or both of the ACs contrary to some "expert" opinions. My 40 years as an engineer trumps his 35 as a technician.
I am going to permanently remove this Intellitec junk and buy a remote display for the Progressive HW50c I already have. That way, if I have to run on less than a 50A service, I can monitor my own usage and do my own load shedding.
For everyone else, after digging in the manuals I see that my dometic ACs have a dedicated load shedding feature that allows the EMS to disable the unit. This is two wires that are routed to the normally open contacts of the relay. This means that the two wires must be connected for the load shed to function. This also means that the EMS must close the relay. If you simply pull the connector or the fuse, no load shedding occurs. This explains why my ACs continued to run after I pulled the control board fuse. This load shedding can be for one or both of the ACs contrary to some "expert" opinions. My 40 years as an engineer trumps his 35 as a technician.
I am going to permanently remove this Intellitec junk and buy a remote display for the Progressive HW50c I already have. That way, if I have to run on less than a 50A service, I can monitor my own usage and do my own load shedding.
