Radio Thermostat CT110 Install Manual page 5

Find the step-by-step diagram for your system
C W R
C W R G
F r o m
2 Wire
F r o m
H V A C
Heat
H V A C
Go To Page 15
Go To Page 15
C Wn Yn R G
F r o m Multi-stage Cool
H V A C
Multi-Stage Heat
W
n
Go To Page 17
C W Y R G
F r o m
3 Wire
H V A C
Heat
W W
Go To Page 16
C B O Y R G
or
F r o m
4 Wire Heat Pump
H V A C
w/o Aux Heat
B
Go To Page 17
C W Y RH RC G
F r o m
4 Wire
H V A C
Heat/Cool
W
Go To Page 16
C B O AUX
or
Multi-stage
F r o m
H V A C
Heat Pump w/
Multi-stage
B
Go To Page 18
• Select the reference page
with your wiring diagram and
set-up information below.
5 Wire
Heat/Cool
• The C-wire is optional but
preferred. Without a C-Wire the
CT110 will operate on batteries
only for about one year.
• Hot water systems diagrams
are on pg20.
• If your combination of wires
Y R G
n n
is not above you can use the
wiring table at the end if the
install section to determine
Aux Heat
your connections, contact
customer support for help.
5
PG