Honeywell CT70 Owner's Manual - Page 15
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Wiring terminal function COMMON POWER COMPRESSOR 1ST STG. HEAT AUX. HEAT FAN C/O VALVE HEAT C/O VALVE COOL SYSTEM MONITOR EM. HEAT Existing thermostat wiring 1 C R Y W1 or W2 G O F or L E CARRIER New thermostat wiring 1 X R Y1 2 W1 W2 G B O L E ! This terminal must be connected to transformer common. # Leave factory-installed jumper in place. 15
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15
CARRIER
!
This terminal must be connected to transformer common.
#
Leave factory-installed jumper in place.
Wiring
terminal
function
Existing
thermostat
wiring
New
thermostat
wiring
COMMON
POWER
COMPRESSOR
1
ST
STG.
HEAT
AUX. HEAT
FAN
C/O VALVE
HEAT
C/O VALVE
COOL
SYSTEM
MONITOR
EM. HEAT
C
X
R
R
Y
Y1
W1
W2
W2
G
G
O
O
B
1
2
1
L
L
E
E
F
W1
or
or