The "nest" and it's loads
All loads turned off and each load measured 1 at a time with a Sears AC/DC clamp on amp meter. Watts are measured current * 12 volts Basic formulas: All watts are E*I=W; in all cases E = 12 Vdc...
Forum Discussion
Chandalen wrote:
scrub: What ga wire are you using? Where is the TS-45 located? It seems the wire appears to be 12ga and the runs to the TS seem to be very long.
Is the 14.69 on the multimeter incoming from the panels or outgoing to the batteries?
Again, cant tell, but are you using the voltage sense and thermal probe options on the TS?
1. Wire gauge, for the portables, Imp 4.47 amps each, it is 8 AWG 20 feet long. The roof mounted is 10 feet of 10 AWG, Imp 7.1 amps. All wire between solar panels and CC is marine grade tinned.
2. 8 gauge between the CC and batteries about a foot, sense is used and I need to pick up the RTS. Battery jumpers are 2 awg. 8 awg marine to the load distribution panel about 3 feet there; 30 amp Blue Sea fuse and holder. 40 amp auto resetting breaker between CC and batteries.
The small wires in the pic are to a test point set up so I can measure solar panel input to CC and CC output the the camper is closed up. The load center on the left is 15 Square D QO breakers between solar panels and CC Wire there is 4 AWG. QO breakers are rated 48 volt dc and panel Voc is 21.
The CC is in the rear storage compartment above the batteries.
Voltage is CC output at the end of a boost cycle getting ready to switch to absorb.
FYI the system this morning switched from bulk to absorb at 10 AM; current was 12 amps and that is with the roof mounted panel partially shaded.
