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Thermostat wiring reference chart - simplest case two-wire thermostat (C) Daniel Friedman How Wire a Trane, GE, or American Standard Thermostat
Ameican Standard, GE & Trane Thermostat Wiring Connection Tables

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Thermostat wiring details & connections for GE, Trane, or American Standard thermostats. This article gives a table showing the proper wire connections for the American Standard, GE or Trane room thermostat used to control heating or air conditioning equipment.

Room thermostat installation & wiring guide: this article series explains the basics of wiring connections at the thermostat for heating, heat pump, or air conditioning systems. Our page top sketch, courtesy of Honeywell Controls, illustrates the wiring diagram for a traditional Honeywell T87F thermostat used for 2-wire single pole single throw control of heating only in a typical gas-fired heating system.



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American Standard, GE & Trane Thermostat Wiring Guide

How to Wire a General Electric (GE), Trane, American Standard HVAC Thermostat

Numbers   Refer to the equipment wiring diagram (usually glued inside the equipment access covers and in the the installation/service manual). May be stages of electric heat, especially on
Air-Pro, Borg Warner, Coleman-Evcon, Frasier Johnson
(L)
Blue, Brown, Tan, or Gray Service indicator lamp
(W2)
Pink or other color Second stage of heat (may be same as (W) on heat pump or oil/gas systems.
(X2)
  Second stage of electric heat on GE/Trane/American Standard systems. Also used as indicator lamp or misc. contact on other systems.
(Y2)
Blue, Pink Compressor second stage
 

Continue reading at THERMOSTAT INSTALLATION STEPS or select a topic from closely-related articles below, or see our complete INDEX to RELATED ARTICLES below.

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