installing digital t-stat help needed
I purchased a Honeywell digital t-stat RTH2410B. I have looked at a video posted here on installing a new controller. The problem is, in the video he only has 5 wires, red, yellow, white, green, gray....
Forum Discussion
Wishbone51 wrote:
I did this as my first mod. using THIS tutorial. I have a comment on this page as "Wishbone" with some solutions to my confusion.
The main issues that caused confusion were:
1) The entire thing is powered by the backup batteries, which I have to replace every year. It normally takes 24v, which we have no access to in the RV.
2) It took me awhile to figure out that the furnace and A/C is triggered by ground, not power .. So you feed the green (GND) wire into the RC terminal, not the red one.
Also, another thing that confused me is that the AC only worked sometimes when I installed it. Turns out that for some protection reason, if you turn on the A/C, the thermostat prevents it from turning back on after a waiting period. This is sometimes configurable.
The Green wire to RC works on YOUR system....but not ALL
OPs uses the RED (+) to RC and Green is for his Fan Speed
Different systems...different wiring schemes.
A/C Compressor re-start delay is so pressure can equalize and protect motor from starting under a high load
