Rheem; Ruud - Honeywell CT70 Wiring Manual

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.
Existing
thermostat
wiring
1
X
R
Y
W2
G
B
O
L
E
RHEEM/RUUD
New
thermostat
wiring
1
X
R
Y1
2
W1
W2
G
B
O
L
E
19