Honeywell prestige thermostat / 2001 Trane tue100a984k3
#1
09-08-15, 08:14 PM
Honeywell prestige thermostat / 2001 Trane tue100a984k3
I am trying to hook up a honeywell prestige thermostat (THX9421R5127WW) with the wireless eim to a 2000-2001 model year trane tue100a984k3 with single stage heat and cool. I am getting power to the EIM and Thermostat from the Trane (R,C from Trane to R,C of EIM) and can connect the thermostat to the eim. During setup of the thermostat I tell it single stage heat and cool, residential ...
The trane has Y,W,T,G,C and has an aprilaire 550 humidifier hooked up to the C and W of the trane. the outside condenser is hooked up to the Y and C of the trane. The old thermostat is a Chronotherm IV which is hooked up to the R,W,Y,G of the Trane
I disconnected the old Chronotherm IV and used the R and C wires to the EIM and then took an R and C from the EIM to the trane. Then went from the Y,G,W on the Trane to the EIM. I am getting power to the EIM and Thermostat from the Trane (R,C from Trane to R,C of EIM) and can connect the thermostat to the eim. During setup of the thermostat I tell it single stage heat and cool, residential ...
Then nothing happens.. the lights on the EIM light up saying fan,power and cooling all active.. but its no go on the trane!?
It was getting hot so I hooked the old Chronostat back up and its humming away
I did not chaeck voltages on the eim to see what it was doing, I guess that will be my next step - but before I do that - is the Trane compatible with the Prestige? I dont see any reason why it would not be. Any advice would be appreciated.
The trane has Y,W,T,G,C and has an aprilaire 550 humidifier hooked up to the C and W of the trane. the outside condenser is hooked up to the Y and C of the trane. The old thermostat is a Chronotherm IV which is hooked up to the R,W,Y,G of the Trane
I disconnected the old Chronotherm IV and used the R and C wires to the EIM and then took an R and C from the EIM to the trane. Then went from the Y,G,W on the Trane to the EIM. I am getting power to the EIM and Thermostat from the Trane (R,C from Trane to R,C of EIM) and can connect the thermostat to the eim. During setup of the thermostat I tell it single stage heat and cool, residential ...
Then nothing happens.. the lights on the EIM light up saying fan,power and cooling all active.. but its no go on the trane!?
It was getting hot so I hooked the old Chronostat back up and its humming away
I did not chaeck voltages on the eim to see what it was doing, I guess that will be my next step - but before I do that - is the Trane compatible with the Prestige? I dont see any reason why it would not be. Any advice would be appreciated.
#2
09-08-15, 08:36 PM
Forum Topic Moderator
Did you wait over 5 minutes with a cooling demand present?
Did you write down the old wire to terminal combination used?
Did you write down the old wire to terminal combination used?
#3
09-09-15, 03:54 AM
Houston204 - Thanks for the reply. I hooked it up (minus the sensors) exactly as shown in the image. I have attached the before pics. Also the Red LED to the left on the control board flashes constantly which on the wiring diagram says "normal"
I may have a little more time tonight to rehook it up and see what happens. I will also test the voltage on the EIM between the R from the Trane and G to the Trane.
I may have a little more time tonight to rehook it up and see what happens. I will also test the voltage on the EIM between the R from the Trane and G to the Trane.
#4
09-09-15, 10:52 AM
Forum Topic Moderator
I would double check that furnace R connects to 3 R's at the EIM.
The factory jumpers may be missing.
The factory jumpers may be missing.
#6
09-09-15, 07:16 PM
great advice houston. turns out i had pushed the jumper out of position so it was no longer in contact with the terminal.
first i checked the continuity of each wire and then from the eim terminal block to the other end of the wire. all wires checked out good until red. once i reset the r rh rc jumpers all was well.
thanks again!
first i checked the continuity of each wire and then from the eim terminal block to the other end of the wire. all wires checked out good until red. once i reset the r rh rc jumpers all was well.
thanks again!
#8
09-10-15, 01:14 PM
Good luck on the lottery! New question - So where would I put the humidfier? Its an aprilaire 550 evaporative (I think)- manual humidity control on a dial thats in the return air. Its wired to the heat and common. the valve opens when hear it called for.. I have seen it wired to both the s terminals and the u terminals in the eim. I want the Honeywell stat to control it based on what I set it at in the tstat.. Is there anyway to make it auto based on the outdoor temp sensor?!
thanks
thanks
#9
09-10-15, 02:44 PM
Forum Topic Moderator
Add a jumper wire between the R's and one of the U1 terminals.
Connect the remaining U1 terminal to the humidifier.
Connect the remaining humidifier wire to C (24volt common)
Connect the remaining U1 terminal to the humidifier.
Connect the remaining humidifier wire to C (24volt common)
#12
09-11-15, 04:46 AM
Forum Topic Moderator
I would remove the old humidistat from the humidifier circuit.
A wire nut would work if it is only a 2 wire humidistat.
A wire nut would work if it is only a 2 wire humidistat.
#13
09-14-15, 06:33 AM
works like a champ.. common from humidifier to common on trane - jumpered u1 to R on eim, and then the other u1 on eim to humidifier. Can now all be controlled from Tstat! What would be really sweet is if the tstat would read the outdoor sensor and then set the humidity accordingly.. but I think I will need to set the humidity based on the outdoor temperature.. but at least I can do it from the tstat and will not have to go to the furnace (thats where the humidistat was) to make the adjustment.
#14
09-14-15, 08:14 AM
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What would be really sweet is if the tstat would read the outdoor sensor and then set the humidity accordingly..
There is a feature on the prestige called "window protection". It uses the outdoor temperature to limit the humidity on colder days. You must have the outdoor temp sensor connected to enble window protection.
#15
09-14-15, 12:46 PM
Thanks Bob! I did see that and I do have the outdoor temp installed. So I suppose I could set it at 50% and then turn on window protection and then when it gets cold, it will drop the humidity. Good deal!
I have also been emailing back and forth with Honeywell about getting them to add more info that is in the stat to the website and mobile app - Detla T, run time, temp.. etc.. more like ecobee. So far for the $249 I spent, this has been a great deal!
I have also been emailing back and forth with Honeywell about getting them to add more info that is in the stat to the website and mobile app - Detla T, run time, temp.. etc.. more like ecobee. So far for the $249 I spent, this has been a great deal!
