Home > Honeywell Home > Honeywell Home RTH Series X2S Smart Thermostat Installation Guide
Honeywell Home RTH Series X2S Smart Thermostat Installation Guide
Wiring
Conventional Systems
Alternate wiring
S
S
Y
L/A
A
O/B
(conventional systems)
or Y1 or M
AUX W2
Y2
E
If labels do not match terminals,
connect wires as shown below
(see notes below).
or F
G
C
U
U
W
K
or W1 or H
or C1 or X or B
3
2
or RH or 4 or V
R
Rc
WIRING NOTES:
2
1. If you must connect both
R and Rc wires, set the
R Slider Tab to the down
position (2 wires).
M39603
2. If your old thermostat had
both R and RH wires, set the R Slider Tab to the down position (2 wires).
Then connect the R wire to the Rc terminal, and the RH wire to the R
terminal.
3. If your old thermostat had only 1 C or C1 wire, connect it to the C terminal. If
your old thermostat had 2 C or C1 wires, call support for assistance.
Heat Pump
WIRING NOTES:
A
L/A
1. Match each labeled wire with same letter on new
thermostat.
2. Insert the wires into the matching terminal.
O/B
Y
Y
G
C
AUX W2
E
W
K
NOTE: If you have difficulty inserting wires, you may
have to press down the terminal push button next to
the corresponding terminal. If the labels do not match
the letters on the thermostat, see the diagram above.
R
Rc
Alternate wiring (for heat pumps only)
WIRING NOTES:
M39605
1. Keep R Slider Tab in the up position (1 wire).
2. If your old thermostat had both V and VR wires, stop now and contact a
qualified contractor for help.
3. If your old thermostat had separate O and B wires, attach the B wire to the C
terminal. If another wire is attached to the C terminal, stop now and contact
a qualified contractor for help.
4. If your old thermostat had Y1, W1 and W2 wires, stop now and contact a
qualified contractor for help.
9
| General | Details |
|---|---|
| Name | Honeywell Home RTH Series X2S Smart Thermostat Installation Guide |
| Make | Honeywell Home |
| Language | English |
| Filetype | PDF (Download) |
| File size | 2.22 MB |
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