Honeywell RTH8500 Wi-Fi Series Thermostat User Guide
Installing your thermostat
Labels don’t match? See alternate
wiring key on page 8.
Wiring (heat pump system only)
7B Wire Wi-Fi thermostat to your heat pump.
a
Starting with the C Wire, match the sticky tag on the wire to the terminal labels.
You must have a C wire. See page 6.
HEAT PUMP
b
Loosen screw, insert wire on inside edge of
terminal, then tighten screw.
c
Verify wire is firmly secured by gently pulling
on wire.
Repeat steps a–c for all other wires.
Push any excess wire back into the wall
opening after all wires are installed.
Continue to page 9.
RC
R
L
E/AUX
K
R
O
O/B
d
e
Y
Y
G
G
C
C
f
Note: The wiring for your
application might be different
than the wiring from above.
Note: If old thermostat has separate wires on AUX and E,
place both wires into the E/AUX terminal. If old thermostat
has wire on AUX with a jumper to E, place wire on E/AUX
terminal. No jumper is required.
Alternate wiring (conventional system)
Use this if your wire labels don’t match the terminal labels.
CONVENTIONAL
Note: You must have
Metal Jumper
a C wire or equivalent.
See page 6.
RC
RC
Y2
Y2
1
R
R
2
W
W
Y
W2
W2
Y
K
3
G
C
G
C
Alternate wiring key (conventional system)
Remove metal jumper connecting R and RC only if you must connect both
R and RC.
1
2
3
If your old thermostat had both R and RH wires, remove metal jumper.
Connect the R wire to the RC terminal, and the RH wire to the R terminal.
Do not use K terminal. For future use.
7
33-00133EF—01
| General | Details |
|---|---|
| Name | Honeywell RTH8500 Wi-Fi Series Thermostat User Guide |
| Make | Honeywell |
| Language | English |
| Filetype | PDF (Download) |
| File size | 1.23 MB |
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