Friedrich - Honeywell CT70 Wiring Manual

FRIEDRICH

Wiring
terminal
function
COMMON
POWER
COMPRESSOR
1 STG.
ST
HEAT
AUX. HEAT
FAN
C/O VALVE
HEAT
C/O VALVE
COOL
SYSTEM
MONITOR
EM. HEAT
!
This terminal must be connected to transformer common.
#
Leave factory-installed jumper in place.
$
Tape off the end of the wire. Jumper is not required on this
thermostat (CT70).
16
Existing
thermostat
wiring
C
X X1
or or
RH
RC
or
Y
Y2
or
W1
W2
G
B
O
Y1
or
L
E X2
or
W3 U
or
3
New
thermostat
wiring
1
X
R
Y1
W1
W2
G
B
L
E
1
2
O