6 volt vs. 12 volt batteries
I do not want to start a debate I just have a simple question about the equipment my new trailer came with. My previous two trailers had 2 12 volt batteries. My new Keystone Fuzion 301 came with 2 6...
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allcool wrote:Crazy Cooter wrote:
The A/C is a Dometic Brisk Air 15K BTU and I installed a Supco SPPE E series. If I remember right, the instructions said to parallel to the OE cap? I also read it on a write up here: http://www.modmyrv.com/2009/05/27/rv-air-conditioner-hard-start-capacitor
Well, SPP E is a serieies of hard start kits.
Goes from SPP 4 -- SPP 10, which one did you use, makes a big difference in starting 'kick'.
I put a SPP 8 in my Dometic 15,000, it starts no problem with a 2800 gen/inverter.
Did you discard your oem start cap when adding the hard start kit..?
Might want to check a few things since you seem to be having a hard start condition.
1) If you have a 3 terminal run cap make sure the hard start is connected to the HERM and the COM terminals.
2) Test with a meter your run cap between the HERM and the COM terminals for 45mfd.You can test the FAN 5mfd tap also. Pretty sure most newer Dometics take a 45+5mfd run capacitor, it runs both the compressor and the fan. Look on the cap for its specs, the 5mfd tap is for the fan only, 45mfd for compressor. It doesn't have to be exact, just within + - 5% max.
Make sure to disconnect all wires first and discharge the capacitor by jumping out all terminals together to COM, with all power off, carefully with insulated needle nose or something similar.
Installed SPP6 thinking it would be plenty. I think I remember it being a three terminal cap and piggybacking it to the both common and terminal with the wire I traced to the compressor. I left the original cap connected.
May have to get back up there and have a look.....
