AC Troubles - Hard Start cap? Something else?
Okay guys, new member, long time lurker. The missus and I finally bought ourselves a 5er, a 2004 Terry Quantum Ax6. It's huge and we have had it out a couple times. Got a great deal on it and we lo...
Forum Discussion
LipschitzWrath, the LRA on your 15k unit is 79 amps. That's extremely high even for a 15k BTU RV unit. Most newer 15k units have a maximum LRA of 70 amps or less.
In any case, to put things into perspective, two EU2000i's operating properly in parallel (the EU2000i's are the king of inrush current BTW) cannot reliably start an RV a/c unit with an LRA much higher than ~60 amps---with the Eco mode on. With the Eco mode off, I've seen them start units with an LRA up to 70 amps or so. Never tested a parallel set of EU2000i's with an LRA much higher than 70 amps with the Eco mode off. IMO, it would be touch and go.
FYI, from my experience, a simple hard-start kit may reduce the LRA 10 percent or so, or drop the LRA from 79 to 71 amps. 71 amps is still quite high.
If your a/c unit works well on commercial power, all should be good with the MicroAir. The MA should easily drop your LRA down to less than 35 - 40 amps. Not sure about the Yamahas, but one EU2000i can start/run some newer, more efficient 15k units with the MA installed.
In any case, to put things into perspective, two EU2000i's operating properly in parallel (the EU2000i's are the king of inrush current BTW) cannot reliably start an RV a/c unit with an LRA much higher than ~60 amps---with the Eco mode on. With the Eco mode off, I've seen them start units with an LRA up to 70 amps or so. Never tested a parallel set of EU2000i's with an LRA much higher than 70 amps with the Eco mode off. IMO, it would be touch and go.
FYI, from my experience, a simple hard-start kit may reduce the LRA 10 percent or so, or drop the LRA from 79 to 71 amps. 71 amps is still quite high.
If your a/c unit works well on commercial power, all should be good with the MicroAir. The MA should easily drop your LRA down to less than 35 - 40 amps. Not sure about the Yamahas, but one EU2000i can start/run some newer, more efficient 15k units with the MA installed.
