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|08-30-2012, 10:44 AM||#1|
Join Date: Aug 2012
New Trane Heat Pump Thermostat
I just purchased and installed an EB-STAT-02
This is one of those "Smart" Thermostats...
My existing equipment is
Heat Pump: 2TWR2-IN-1B
Thermostat: TAYSTAT 570
My understanding is a Dual Stage Heat / Single Stage Cool
My wiring at the old thermostat consisted of:
G = Green (Fan)
B = Blue (Common)
R = Red (no specific description)
Y = Yellow (Compressor Contactor 1)
W = White (Aux Heat Relay)
X2 = Black (Emergency Heat Relay)
O = Orange (Switchover Valve)
The new thermostat manual is here:
I configured my wiring as such:
Ecobee - Trane
Y – Y
W (O/B) – O
G – G
W2 – W
RH / RC – R (this is jumped)
At this point I decided to use an "accessory" switch for the emergency heat.
As the new thermostat states, all non-powered accessories require a jump from "R" so...
R jumped to ACC1
ACC1r – X2
R also jumped to the other 24v main input block.
B connected to other 24v main input block.
I currently have cool running right now. Everything seems fine, but haven't tried heat.
My concerned is over the X2 and W wire.
This new Smart Thermostat does not have an "E" terminal.
The W1 is occupied by the changeover (orange wire).
The W2 is occupied (how I have it wired) by the W wire.
So what to do with the X2 or Emergency Heat wire?
I have read to leave it unhooked?
New member - thanks for reading!
Last edited by cory_booth; 08-30-2012 at 10:49 AM.
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