White Rodgers 1F92W-51 Installation & Operation Manual page 10

NEW THERMOSTAT
LABEL TERMINAL
NUMBER DESIGNATION
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
(12)
(13)
10
TABLE 2. TERMINAL REFERENCE
G Fan Output
C Transformer 24 VAC Common
L (this terminal not used)
R Transformer 24 VAC Hot
O Changeover Output (Cooling)
B Changeover Output (Heating)
E1 Emergency Heat Relay (cycles on
1st stage in Emergency Mode)
E2 Emergency Heat Relay (continually
energized in Emergency Mode)
Y1 Stage 1 Cool
Y2 (this terminal not used)
W1 Stage 1 Heat (Compressor)
W2 Stage 2 Heat (Auxiliary)
W3 (this terminal not used)
FUNCTION
OLD THERMOSTAT
TERMINAL
DESIGNATION