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Trying to install 3 ecobee lite t stats on a 2 wire with

Customer Question
HI IM Ray Im trying...
HI IM Ray Im trying to install 3 ecobee lite t stats on a 2 wire with Fast stats to create a common. i have 3 taco bronze colored valves the t stat wire goes to. how do i wire it?
JA: I'll do all I can to help. How long have you been dealing with this?
Customer: just recently customer purchased t stats from amazon and hired me to install
JA: Do you plan on doing the work yourself?
Customer: im a license electrician
JA: Anything else we should know to help you best?
Customer: would like to know how the wire the fast stats to the zone valves
Submitted: 4 months ago.Category: HVAC
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Answered in 18 minutes by:
8/4/2017
HVAC Technician: Rick, HVAC Supervisor replied 4 months ago
Rick
Rick, HVAC Supervisor
Category: HVAC
Satisfied Customers: 22,573
Experience: 40+ yrs. experience as a licensed oil & gas technician.
Verified

Welcome to Just Answer, my name is ***** ***** I will do my best to help you with your issue. First I’ll need some more info so I have a more complete picture of your situation.

I don't understand " with Fast stats to create a common". You get your common from the zone valve transformer. There is one transformer lead that goes to the thermostats and the other to the zone valves #2 (middle terminal). You connect the transformer terminal that feeds the valves #2 terminal to common on the new thermostat.

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Customer reply replied 4 months ago
The t stats require 3 wires I now only have 2 a red and a white...
HVAC Technician: Rick, HVAC Supervisor replied 4 months ago

You'll have to run new thermostat cable with at least 3 wires.

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HVAC Technician: Rick, HVAC Supervisor replied 4 months ago

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Phil
Phil
Phil, Mechanical Engineer
Category: HVAC
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