Honeywell CT70 - Manual (Page 18)

18
LENNOX
! This terminal must be connected to transformer common.
# Leave factory-installed jumper in place.
R
Wiring
terminal
function
Existing
thermostat
wiring
New
thermostat
wiring
COMMON
POWER
1 ST STG.
HEAT (COMP)
1 ST STG.
COOL
2 ND STG.
HEAT
FAN
C/O VALVE
HEAT
C/O VALVE
COOL
SYSTEM
MONITOR
EM. HEAT
X X
Y W2
1
E E
L
M W1
B
V/VR
Y1
2
F G
R O
or Y
BL or
R or
Y
R
O
BK
or
or
or