Honeywell RedLink - YTH6320R1001

Davidb6

Thanks beenthere, always makes good sense to clean up and organize these patchwork systems.

As far as I know (dust, old wires, etc) I don't think anyone has touched the top three zones in many years.

At the bottom of the page..if I disconnect that transformer the whole system shuts down so, no question the aquastat (transformer) is gone.

I'll test the redlink...it's very possible it no longer works.

I’ll rewire everything this weekend and let you know how it works out.

Really appreciate your patients and help.

Dave

Maybe a dumb question but I’ll ask anyway. There’s no wiring priority (first, second, third, fourth) for the Taco’s is there? As long as there all wired together I can start with anyone of them.

beenthere

Correct. They aren't prejudice as to which one is wired first or last.

I remember(although the memory gets fainter as the years go by) when I first saw and had to wire up those zone valves. It was very greek to me(and I had training). And I made my fair share of mistakes.

So, I don't want to be too harsh on anybody that wires them up incorrectly.

Cause I know I wired more then one up wrong in the early years.

Just take your time, and look at the drawing often.

Davidb6

Spending some time going over and over the drawings just to make sure I'm not assuming anything -

Based on drawing # 2 -

1, This seems obvious but I'll ask anyway -
When I'm done rewiring, each # 1 on the Taco's should only have one wire (incomming signal from thermostats) attached to it and, the R on the transformer should have 4 wires (outgoing power to each of the 4 thermostats). Correct?

2, The aqua stat has two "T"s. Are these interchangeable or is there a differance I need to be aware of?
One "T" will go to the #3 on the zone valve and one will go to #2.

beenthere

The TT terminals are iterchangable. So it doesn't matter which hooks to 2 and 3 of the zone valve.

I usually make a pig tail to put on the R terminal of the transformer.
And then run all the wires to the stats with that pig tail. Instead of trying to put 4 or 5 wires on the R terminal screw.

Davidb6

beenthere...I can't thank you enough. Found one transformer (transformer on bottom of posted thumb page) was not working. I removed it and every piece of wiring from the thermostats on back. Rewiring everything as you showed and all zones work great.

Can't believe you were able to guide a novice (me) to fix a problem over a chat when two experts couldn't do it while in the house.

Thanks again!!
Dave

beenthere

Your welcome.

Some techs, are befuddled by low voltage wiring.