4.3 Identify system configuration
Your wiring can help to determine the type of heating and cooling equipment installed in your home. Before attaching
the front cover, use the following chart, and check the box next to the settings that match your new thermostat's
wiring. This information will be used in Step 4.5 to configure your thermostat.
Thermostat Terminals
with attached wires
▢
No wire on thermostat terminal Y
▢
Y (no O/B)
▢
Y, Y2 (no O/B)
▢
Y, O/B
▢
Y, Y2, O/B
Outdoor Equipment
No air conditioner / no heat pump
Single stage air conditioner
Two stage air conditioner
Single stage heat pump
Two stage heat pump
Setting
(Used in 4.5)
AC0
AC1
AC2
HP1
HP2
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