TABLE 2. TERMINAL REFERENCE

LABEL

NEW THERMOSTAT

 

OLD THERMOSTAT

TERMINAL

 

 

TERMINAL

NUMBER

DESIGNATION

FUNCTION

DESIGNATION

(1)

G

Fan Output

 

 

 

(2)

C

Transformer 24 VAC Common

 

 

 

(3)

L

(this terminal not used)

 

 

 

(4)

R

Transformer 24 VAC Hot

 

 

 

(5)

O

Changeover Output (Cooling)

 

 

 

(6)

B

Changeover Output (Heating)

 

 

 

(7)

E1

Emergency Heat Relay (cycles on

 

 

 

 

 

1st stage in Emergency Mode)

 

 

 

(8)

E2

Emergency Heat Relay (continually

 

 

 

 

 

energized in Emergency Mode)

 

 

 

(9)

Y1

Stage 1 Cool

 

 

 

(10)

Y2

(this terminal not used)

 

 

 

(11)

W1

Stage 1 Heat (Compressor)

 

 

 

(12)

W2

Stage 2 Heat (Auxiliary)

 

 

 

(13)

W3

(this terminal not used)

 

 

 

 

 

 

 

 

 

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White Rodgers 1F92W-51 manual