Honeywell RTH8500 Wifi Thermostat User Manual
Quick Installation Guide
Program schedule override (permanent)
1 Touch or on the thermostat
home screen to reach your desired
temperature. Hold Until will appear
together with the time you want the
hold to end.
2 Touch Hold Until. Permanent Hold will
appear on screen. Touch Permanent
Hold to hold this temperature until you
manually change it.
NOTE: To end permanent hold and
return to the program schedule, touch
Permanent Hold and then touch Run Schedule.
Wiring—conventional systems
Alternate wiring (conventional systems)
If labels do not match terminals, connect wires as shown below (see notes, below).
NOTES:
1. If you must connect both R and Rc wires, set the R Slider Tab to the down
position (2 wires).
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, wrap each separately with electrical
tape and do not connect them.
S
S
Y
L/A
A
O/B
or Y1 or M
AUX W2
Y2
E
or F
G
C
U
U
W
K
or W1 or H
or C1 or X or B
3
2
R
or R
or RH or 4 or V
2
Rc
14
| General | Details |
|---|---|
| Name | Honeywell RTH8500 Wifi Thermostat User Manual |
| Make | Honeywell |
| Language | English |
| Filetype | PDF (Download) |
| File size | 1.11 MB |

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