Honeywell CT70 Owner's Manual - Page 20
Trane/american Standard
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TRANE/AMERICAN STANDARD Wiring terminal function COMMON POWER 1ST STG. HEAT AUX. HEAT FAN C/O VALVE HEAT C/O VALVE COOL SYSTEM MONITOR OUTDOOR SENSOR OUTDOOR STAT Existing thermostat wiring 1 B R Y W1 or W G O F or L T W2 or X2 New thermostat wiring 1 X R W1 2 Y1 W2 G B O L 3 E ! This terminal must be connected to transformer common. # Leave factory-installed jumper in place. $ Tape off end. CT70 replaces outdoor reset with improved zero droop performance. 20
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20
TRANE/AMERICAN STANDARD
!
This terminal must be connected to transformer common.
#
Leave factory-installed jumper in place.
$
Tape off end. CT70 replaces outdoor reset with improved zero
droop performance.
Wiring
terminal
function
Existing
thermostat
wiring
New
thermostat
wiring
COMMON
POWER
1
ST
STG.
HEAT
AUX. HEAT
FAN
C/O VALVE
HEAT
C/O VALVE
COOL
SYSTEM
MONITOR
OUTDOOR
SENSOR
OUTDOOR
STAT
B
X
R
R
W
W2
G
G
O
O
1
Y
Y1
W1
B
L
L
T
X2
E
1
2
3
W1
W2
F
or
or
or