background image

 

 

Y2

W2

K

RC

R

W

Y

G

C

RC

R

O/B

Y

G

C

R

W

G

C

Y

HEAT PUMP

CONVENTIONAL

L

E

AUX

K

MCR35007

Y2

Install your thermostat.

Setup your thermostat

Connect thermostat to the Z-Wave network.

1

2

This thermostat works with common 24 volt 
systems such as forced air, hydronic, heat 
pump, oil, gas, and electric.
It will not work with millivolt systems, such as 
a gas fireplace, or with 120/240 volt systems 
such as baseboard electric heat.

Automation and Control Solutions

Honeywell International Inc.
1985 Douglas Drive North
Golden Valley, MN 55422

yourhome.honeywell.com

® U.S. Registered Trademark.
© 2013 Honeywell International Inc.
33-00012—01   M.S.     10-13
Printed in U.S.A.

C

C

MCR31537

M31545

Blank 
sticky 

tag

Terminal

designation

1.3  Label wires 

Do not label by wire color.  

Use the supplied sticky tags to label 
each wire as you disconnect it. Label 
wires according to old thermostat 
terminal designations, not by wire 
color.

Note: 

If no tag matches a terminal 

designation, write the appropriate letter 
on a blank sticky tag.

1.4  Remove wallplate

Remove the old wallplate from the 
wall after all wires are labeled and 
disconnected.

M31538

Finger holds

Wallplate (back view)

Thermostat

1.5  Separate Z-Wave thermostat 

and its wallplate

On your new thermostat, grasp the 
finger holds on the top and bottom of 
the wallplate with one hand and the 
thermostat (front) with the other hand. 
Pull pieces apart.

1.1  Switch OFF power to your 

heating/cooling system

1.1a 

Important!

 To protect your 

equipment, switch OFF 
the power to your heating/
cooling system at the 
breaker box or the system 
switch.

1.1b  Confirm power is OFF. Try 

to turn on heating/cooling 
equipment by changing 
temperature on your old 
thermostat. Your power is 
OFF if your system does not 
turn ON.

Install your thermostat

Turn over  

Welcome

Getting set up and ready is simple.

1

or

M31535

If you have an older thermostat with a 
sealed mercury tube, see warning page 
for proper disposal instructions.

1.2  Remove old thermostat 

faceplate and leave wires 

connected

1.2a  Take a picture of the wire 

connections for later reference.

1.2b  If no wire is connected to a 

terminal labeled C or no C 
terminal exists on the old 
thermostat, call 1-800-468-
1502 for wiring assistance.

Important! 

C wire is required and is 

the primary power source for your 
thermostat. Without a C wire, your 
thermostat will not power up.

C

C

MCR33823

Wallplate

1.6  Mount wallplate for Z-Wave 

thermostat

Mount your new wallplate using 
screws and anchors included with 
the thermostat.
If necessary:
•  Drill 3/16-in holes for drywall
•  Drill 7/32-in holes for plaster

Note: 

You may be able to use your 

existing wall anchors. Hold the 
wallplate up to the existing anchors 
to check for alignment.

M31543

Y2

W2

K

RC

R

W

Y

G

C

RC

R

O/B

Y

G

C

HEAT PUMP

CONVENTIONAL

L

E/AUX

K

R

Y

C

W

G

MCR31539

1.7  Connect wires

1.7a  Starting with the C Wire, match 

the sticky tag on the wire to the 
terminal labels.

Important! 

C wire is required and is the 

primary power source. Without a C wire, 
your thermostat will not power up. 

1.7b  Loosen screw, insert wire on inside 

edge of terminal, then tighten 
screw.

1.7c  Verify wire is firmly secured by 

gently pulling on wire. 

1.7d  Repeat steps 1.7a–1.7c for all 

other wires.

1.7e  Push any excess wire back into 

the wall opening after all wires are 
installed.

Note:

 The wiring for your 

application might be different 
than the wiring from above.

Labels don’t match or have heat pump system? 

See User Guide.

Remove metal jumper 

only

 if you 

have both 

R and RC wires

Insert wires here

1.8  Remove battery tab

The thermostat is shipped from the 
factory with the coin cell installed. To 
keep the battery from discharging during 
shipment and storage, the thermostat is 
shipped with a plastic tab inserted in the 
battery holder. Simply pull the plastic tab 
out of the battery tray. Make sure that 
the battery tray is fully inserted into the 
thermostat.

1.9  Attach thermostat to wallplate

Align the thermostat onto wallplate and 
snap into place.

Circuit 

breaker  

box

Circuit 

breaker  

box

Heating/cooling 

system power 

switch

Heating/cooling 

system power 

switch

Thermostat

Wallplate

M31543

Y2

W2

K

RC

R

W

Y

G

C

RC

R

O/B

Y

G

C

HEAT PUMP

CONVENTIONAL

L

AUX

/E

K

1.10  Switch heating/cooling 

system ON

Important!

1.10a  Verify that the C wire is 

connected at the thermostat 
and at the heating/cooling 
system.

1.10b  Make sure the heating/

cooling system door is firmly 
secured.

1.10c  Switch power back ON for 

your heating/cooling system 
at the breaker box or its 
power switch.

or

M31544

1.11  Set date and time

1.11a Touch 

s

 or 

t

 buttons to 

change displayed time and date.

1.11b  Press and hold an arrow to 

quickly change a setting.

1.11c Press 

DONE

 to save changes.

Day

Time

Month

Year

Sticky 

tag

Quick Start Guide

Touchscreen  
Thermostat

RTH8580ZW

Before you 
begin

Gather
•  Small screw driver
•  Drill (if needed)

Need Help?

For assistance with this product please 
visit 

http://yourhome.honeywell.com 

or call Honeywell Customer Care toll-
free at 

1-800-468-1502.

Remove tab.

3

33-00012-01

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