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6
11
Review the wiring table information.
a. Refer to:
• Table1-IfyoudoNOThaveaheatpump
• Table 2 - If you have a heat pump
b. Select the correct row based upon the thermostat being replaced, and then circle the wire labels you have.
c. Connect your wires as shown in the New Thermostat Terminals row.
Table 1: Gas or Electric
(Single Stage or Multistage)
Themostat Being Replaced Wire Labels
All Brands C
X
B
R
RC
RH W
W1
W2 G
F
Y
Y1
Y2
Connects to
New Thermostat Terminals
24COM 24RC 24RH W1 W2/O/B G Y1 Y2
Table 2: Heat Pump
(Single Stage or Multistage)
Themostat Being Replaced
Wire Labels
Trane/AmericanStandard
(Weathertron) or York
COM
C
B
R
RC
RH E
X2
W
W1
W2
Y
AUX
O G Y
Y1
Y2
Other Brands COM
C
X
R
RC
RH E
X2
W
W1
W2
Y
AUX
O
B
G
F
Y
Y1
Y2
Lennox C
X
R
RC
**VR
**V
RH E
X2
W
W1
W2
Y
AUX
O
**R
G
F
Y
Y1
Y2
Connects to
New Thermostat Terminals
24COM 24RC 24RH *W1 W2/O/B G Y1 Y2
* ConnecttwowirestotheW1terminal
**Ifyourexistingthermostathasa“V”or“VR”wirelabel,connectthatwireto“24RC”onthenewthermostat,thenconnectthe
wirelabeled“R”to“W2/O/B”onthenewthermostat
Some wire terminals may
not be used
Some wire terminals may
not be used
12
Attach all wires securely to the new thermostat.
Note:Awiremustbeconnectedto“24C”topowerthethermostat.
a. Usetheinformationfromstep11tomatchthewirestothecorrectterminals.
b. Use1/8”bladescrewdrivertosecurewiresinterminals.
CAUTION: EQUIPMENT DAMAGE HAZARD
Improper wiring can lead to equipment damage. Follow the
Terminal Connection information from step 11 carefully to ensure
the control is wired properly. After wires are secure, bare wires
MUST NOT touch each other.
24RC
G
Y1
Y2
RS2
RS2
HC
24C
24RH
W1
W2/O
RS1
RS1
H1