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Installing your thermostat
You might need the following tools to install this thermostat:
• No. 2 Phillips screwdriver
• Pen
• Pencil
• Level (optional)
1 Switch OFF power to your
heating/cooling system.
Important!
To protect your
equipment, switch OFF the power
to your heating/cooling system
at the breaker box or the system
switch.
2 Remove old thermostat faceplate
and leave wires connected.
2a Take a picture of the wire
connections for later
reference.
2b If no wire is connected to
a terminal labeled C or no
C terminal exists on the
old thermostat, view the
Alternate Wiring videos at
honeywellhome.com/wifi-
thermostat or reference the
C-wire addendum in the
box.
Important!
C wire is required
and is the power source for your
thermostat. Without a C wire, your
thermostat will not power up.
• Drill and bits (3/16" for drywall,
7/32" for plaster) (optional)
• Hammer (optional)
• Electrical tape (optional)
Circuit
breaker
box
C
Terminal
designation
If you have an older thermostat
with a sealed mercury tube,
turn to page ii for proper
disposal instructions.
3
or
Heating/
M31535
cooling system
power switch
Note:
You will need a
picture of your wire
connections to wire the
new thermostat.
69-2715EF—07
M33823A
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Need help?
Do you have a question about the RTH9585WF Smart Series and is the answer not in the manual?
Questions and answers
How do I adjust swing or differential temp on my thermostat RTH9585WF
To adjust the swing or differential temperature on the Honeywell Home RTH9585WF Smart Series thermostat, follow these steps:
1. Touch SETTINGS on the thermostat's display.
2. Select Preferences.
3. Choose Advanced Preferences.
4. Adjust the temperature differential (swing) settings as needed.
5. Confirm and save your changes.
The thermostat maintains at least a 3-degree difference between heating and cooling when set to Auto mode.
This answer is automatically generated
how do I change the temp at which the thermostat changes from heat pump to aux heat
This is for a weekend house. will the thermostat alert my phone if the furnace failed, and the temperature was falling Thanks
How do I change the passcode on the RTH 9585WF
To change the passcode on the Honeywell Home RTH9585WF Smart Series thermostat:
1. Touch "RÉGLAGES" (Settings).
2. Select "Réglages de sécurité" (Security Settings).
3. Choose "Modifier mode de verrouillage" (Change Lock Mode).
4. Select an option and follow the prompts.
5. If a passcode is used for added security, it can be changed during this process.
Note: Record the new passcode for future reference.
This answer is automatically generated