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3
RTH5160 Series
5 Take a picture of how your wiring
looks right now.
Be sure to include the letters next
to the terminals where the wires
are inserted. This will be a helpful
reference when wiring your new
thermostat.
Tip: If the color of your wires has
faded or if 2 terminals have the
same wire color, use the wire labels
provided in the package to label
each wire.
Y
R RC
Example of
a jumper
Terminals
1/4” to 3/8”
6 Record which R-wire(s) you have and write down the color of the wire(s).
Note: Do not include jumpers as a part of your count. The thermostat does
not need jumpers.
Terminal Wire Color
R
R
h
Rc
7 Record the remaining wires and write down the color of the wires.
Check mark the wires that are connected to terminals. Next to the check mark,
write down the color of the wire. Do not include jumpers as a part of your
count.
Check all that apply (Not all will apply):
Terminal Wire Color
Y
G
C
Terminal Wire Color
A or L/A
O/B
W2 or AUX
E
W
K
NOTES:
• C does not power the thermostat display or operations; batteries are
always required.
• If K was used on old thermostat you have a wire-saver at the equipment.
Re-wiring would need to be done so that Y and G are used instead of K.
• The RTH5160 thermostat does not support L/A, S, or U terminals.
• If there are wires in terminals that are not listed, you will need
additional wiring support. Visit yourhome.honeywell.com/support to
find out if the thermostat will work for you.
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