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View Full Version : Wiring from old ruum tstat to hunter tstat


rbleader
Jun 20, 2009, 11:04 AM
https://www.askmehelpdesk.com/attachment.php?attachmentid=20991&stc=1&d=1245520740

https://www.askmehelpdesk.com/attachment.php?attachmentid=20992&stc=1&d=1245520740


First pic is my old tstat - I believe it is a heat pump.
(note that orange wire and gray wires are not used, E and W2 are jumped)

Second pic is the new tstat's wiring explanation. Hunter Model 44860.

So I wired the wires as such:

Old->New
G->G
R->Rc/R
B->B
Y->Y1
W2->W2, jumped with E
X->C

O and L are not used on both new and old.
Y2 is now used on the new tstat.

Now, I turn it on and no matter what mode it is (heat/cool/auto) it seems like only the heater is turned on. What did I do wrong?

rbleader
Jun 20, 2009, 11:09 AM
Sorry, here are the pics...

http://img.photobucket.com/albums/v686/rbleader/1-1.jpg
http://img.photobucket.com/albums/v686/rbleader/2-1.jpg

KC13
Jun 20, 2009, 11:16 AM
Check the installation instructions for any reference to an "R"-"Rc" jumper. Disconnect and insulate the black wire and the orange wire. They were previously unused and should remain that way. If possible, post a better pic of the new wire connections (they are a little cut off in the current pic).

rbleader
Jun 20, 2009, 11:19 AM
Check the installation instructions for any reference to an "R"-"Rc" jumper.

R/Rc is 1 connector, there is also RH connector, but I'm sure it isn't used for heat pump system.

BTW, RH connector is not connected now;

KC13
Jun 20, 2009, 11:21 AM
R/Rc is 1 connector, there is also RH connector, but I'm sure it isn't used for heat pump system.Betcha it is...

rbleader
Jun 20, 2009, 11:24 AM
Betcha it is...

Jumped Rc/R with RH, still heater only.

KC13
Jun 20, 2009, 11:43 AM
If possible, post a better pic of the new wire connections (they are a little cut off in the current pic).This would be very helpful.

rbleader
Jun 20, 2009, 12:02 PM
This would be very helpful.

http://img.photobucket.com/albums/v686/rbleader/3-1.jpg

Here it is, it's a mess, but...

Old->New
G->G
R->Rc/R (currently jumped with RH)
B->B
Y->Y1
W2->W2, jumped with E
X->C

O, L, Y2 are empty.