Pentax RTH8580WF, RTH8500, RTH8580, RTH8585, RTH8585WF User's Guide

User Guide

Wi-Fi Touchscreen Programmable Thermostat

RTH8500 Wi-Fi Series

In the box you will find

• Thermostat

• Wallplate (attached to thermostat)

• Screws and anchors

• Coin cell battery (inside the back

of the thermostat)

• Quick Start Guide

• Thermostat ID Card

• Wire labels

• User Guide

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Welcome

Congratulations on your purchase of a Honeywell Wi-Fi touchscreen programmable thermostat. When registered to Honeywell’s Total Connect Comfort Solutions, you can remotely monitor and control the heating and cooling system in your home or business— you can stay connected to your comfort system wherever you go.

Honeywell’s Total Connect Comfort is the perfect solution if you travel frequently, own a vacation home, a business or manage an Investment property or if you are simply looking for peace of mind.

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.

This thermostat contains a Lithium battery which may contain Perchlorate material. Perchlorate Material—special handling may apply. See www.dtsc.ca.gov/hazardouswaste/perchlorate

MERCURY NOTICE: Do not place your old thermostat in the trash if it contains mercury in a sealed tube. Contact the Thermostat Recycling Corporation at www. thermostat-recycle.org or 1-800-238-8192 for information on how and where to properly and safely dispose of your old thermostat.

NOT I C E: To avoid possible compressor damage, do not run air conditioner if the outside temperature drops below 50°F (10°C).

Need help?

Visit wifithermostat.com or call 1-855-733-5465 for assistance before returning the thermostat to the store.

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Table of contents

About your new thermostat

Home screen quick reference .....................5

Preset energy-saving schedules ................. 6

Installation

Installing your thermostat ............................ 8

Connecting to your Wi-Fi network .............26

Registering your thermostat online ........... 31

Operation

Setting the clock ........................................ 36

Setting the fan ........................................... 37

Selecting system mode ............................. 38

Adjusting program schedules .................... 39

Overriding schedules temporarily .............40

Overriding schedules permanently ........... 41

Setting vacation hold ................................. 42

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Setting filter reminder intervals ................. 43

Cleaning the screen .................................. 44

Unregistering thermostat........................... 45

Disconnecting Wi-Fi .................................. 46

Special features ........................................48

Setting functions and options ....................51

Appendices

Frequently asked questions ......................59

Message center messages ....................... 62

Troubleshooting ......................................... 65

Limited warranty ........................................ 71

Features of your Wi-Fi thermostat

With your new thermostat, you can:

• Connect to the Internet to monitor and control your heating/cooling system

• View and change your heating/cooling system settings

• View and set temperature and schedules

• Receive alerts via email and get automatic upgrades

Your new thermostat provides:

• Smart Response Technology

• Compressor protection

• Heat/cool auto changeover

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Home screen quick reference

Once your Wi-Fi thermostat is installed, it will display the home screen. Portions of this display will change depending on how you are viewing it. To change settings, simply press the appropriate area lightly with your finger.

Message center

Inside

Wi-Fi status

Select fan mode

Schedule is on (does not

Select system mode

Program schedules

Override schedule

Set clock

display when off)

M31565

Additional settings

Lock screen for cleaning

Unless you change the lighting function, the screen is always lit at low intensity. When you touch the screen, the screen brightens.

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Preset energy-saving schedules

This thermostat is pre-set with energy-saving program settings for four time periods. Using the default settings can reduce your heating/cooling expenses if used as directed. Savings may vary depending on geographic region and usage.

Default Heat Settings Default Cool Settings

WAKE

6:00 am

LEAVE

8:00 am

RETURN

6:00 pm

SLEEP

10:00 pm

To change the settings, see pages 39–42.

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Setting up your thermostat

Setting up your Wi-Fi programmable touchscreen thermostat is easy. It is preprogrammed and ready to go as soon as it is installed and registered.

Install your thermostat.

Connect it to your home wireless network.

Before you begin, you may want to watch a brief installation video.

Use the QR Code wifithermostat.com/support

7 69-2715ES—07

at the front of this guide, or go to

Installing your thermostat

You might need the following tools to install this thermostat:

• No. 2 Phillips screwdriver

• Small pocket screwdriver

• 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.

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• Drill and bits (3/16” for drywall, 7/32” for plaster) (optional)

• Hammer (optional)

• Electrical tape (optional)

Circuit

breaker

box

Heating/cooling

system power

switch

Installing your thermostat

2 Remove old thermostat faceplate

and leave wires connected. 2a Take a picture of the wire

If you have an older thermostat with a sealed mercury tube, turn to page 2 for proper disposal instructions.

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

wifithermostat.com/videos

Important! C wire is required and

is the primary power source for

Terminal designation

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

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Installing your thermostat

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 the 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.

4 Remove wallplate.

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

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Sticky tag

Blank tags

Terminal designation

Installing your thermostat

5 Separate Wi-Fi 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.

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Thermostat

Wallplate (back view)

Finger holds

Installing your thermostat

6 Mount wallplate for Wi-Fi 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.

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Wallplate

E/AUX

CONVENTIONAL

HEAT PUMP

M31543

O/B

Installing your thermostat

Important! The Wi-Fi thermostat requires a C wire to operate. The C, or common, wire

brings 24 VAC power to the thermostat. Many older mechanical or battery operated thermostats do not require a C wire. If you don’t have a C wire, try:

• Looking for an unused wire that is pushed into the wall. Connect that wire to C and check that it is connected to the 24 VAC common at your heating/cooling system. Check the video section at wifithermostat.com

Note: Not all heating/cooling systems label the 24 VAC common C. Check your system

manual or contact the manufacturer to find out which terminal is the 24 VAC common.

View the Alternate Wiring videos at wifithermostat.com/videos

Wiring

For conventional heating/cooling systems (natural gas, oil or electric furnace, air conditioner), see page 14. See “Glossary” on page 68 for further definition.

For a heat pump system, see page 15. See “Glossary” on page 68 for further definition.

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Installing your thermostat

Wiring (conventional system)

7A Wire the Wi-Fi thermostat to your conventional system.

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 13.

b Loosen screw, insert wire on inside edge of

terminal, then tighten screw.

c Verify wire is firmly secured by gently pulling

on wire. d Repeat steps a–c for all other wires. e Push any excess wire back into the wall

opening after all wires are installed. d Continue to page 20.

Labels don’t match? See alternate

wiring key on pages 16–17.

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Remove metal jumper

only if you have both

R and RC wires

HEAT PUMP

CONVENTIONAL

E/AUX

Note: The wiring for your

application might be different than the wiring from above.

O/B

Installing your thermostat

Wiring (heat pump system only)

7B Wire Wi-Fi thermostat to your heat pump.

Labels don’t match? See alternate

wiring key on pages 18–19.

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 13.

b Loosen screw, insert wire on inside edge of

terminal, then tighten screw. c Verify wire is firmly secured by gently pulling on

wire. d Repeat steps a–c for all other wires. e Push any excess wire back into the wall

opening after all wires are installed.

Continue to page 20.

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

E/AUX

Note: The wiring for your

application might be different than the wiring from above.

HEAT PUMP

AUX

O/B

terminal. No jumper is required.

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MCR33529

Installing your thermostat

CONVENTIONAL

Alternate wiring (conventional system)

Use this if your wire labels don’t match the terminal labels.

Note: You must have

a C wire or equivalent. See page 13.

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Metal Jumper

See key to

– 3

on page 17.

Installing your thermostat

Alternate wiring key (conventional system)

Remove metal jumper connecting R and RC only if you must connect both

R and RC. 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.

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Installing your thermostat

Alternate wiring (heat pump system only)

Use this if your wire labels don’t match the terminal labels.

HEAT PUMP

Note: You must have

a C wire or equivalent. See page 13.

E/AUX

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Metal Jumper

AUX

MCR33530A

O/B

See key to 1 – 7

on page 19.

Installing your thermostat

Alternate wiring key (heat pump system only)

Leave metal jumper between R and RC terminals in place.

If your old thermostat had both V and VR wires, check wifithermostat.com for help.

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, check wifithermostat.com for help. Attach the O wire to the O/B terminal. Set System Function 0190 to 0 (see page 55). If your old thermostat had an O wire and not a B wire, attach the O wire to the O/B terminal.

If your old thermostat had separate Y1, W1 and W2 wires, check wifithermostat.com for help.

This is the system monitor. If the monitor finds a problem, you will see a red light in the upper

right corner of the thermostat (shines through the cover). 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.

Do not use K terminal. For future use.

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Installing your thermostat

8 Install battery.

Insert the coin cell battery (included), observing the correct polarity.

Note: A correctly inserted

battery will extend about halfway out of the battery slot on the thermostat, allowing for easier removal.

This battery maintains time and date during power outages. It does not power the thermostat (C wire required).

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Thermostat interior

Installing your thermostat

9 Attach thermostat to wallplate.

Wallplate

Align the thermostat to the wallplate and then snap into place.

HEAT PUMP

CONVENTIONAL

AUX

M31543

O/B

Thermostat

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Installing your thermostat

10 Switch heating/cooling system ON.

Important!

10a Verify that the C wire is

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

10b Make sure the heating/

cooling system door is firmly secured.

10c Switch power back ON for

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

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Installing your thermostat

11 Set date and time.

Touch s or t buttons to change displayed time and date.

Press and hold a button to quickly change a setting.

Note: This thermostat will

automatically update for daylight saving time (if observed in your area) and all date/time information is stored. If the thermostat is connected to Wi-Fi and registered to Total Connect Comfort, the current time is updated from the internet.

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Year

Time

Day

Month

Installing your thermostat

12 Determine your heating/cooling system type.

Important! Heating/cooling system type must be set so that your

thermostat operates properly and does not damage your system.

12a If you have a traditional system (natural gas forced air with A/C),

your hermostat is set up by default to control this system.

12b If your system is:

• Conventionalmultistageheatandcool

• Anytypeofheatpump

• Hydronic

• Other

You MUST change the system type by setting system function 0170. See page 54 to match your thermostat to your system type.

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If you are not sure of your heating/cooling system type or have other questions, go to wifithermostat.com

Installing your thermostat

Congratulations! Your thermostat is operational. 13 Test your thermostat.

13a Press the

SYSTEM

button to change to

heating or cooling and begin operation.

13b For remote access to your thermostat,

continue to

“Connecting to your Wi-Fi

network” on page 26.

Heating/cooling system not turning on? Refer to page 67 or FAQ at wifithermostat.com/support

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Inside

MCR31580

Connecting to your Wi-Fi network

To complete this process, you must have a wireless device connected to your home wireless network. Any of these device types will work:

• Tablet (recommended)

• Laptop (recommended)

• Smartphone

If you get stuck... at any point in this procedure, restart the thermostat by removing

the thermostat from the wallplate, wait for 5 seconds, and snap it back onto the wallplate. Return to Step 1 in this procedure, which starts on page 27.

View the Wi-Fi Enrollment video at wifithermostat.com/videos

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Connecting to your Wi-Fi network

1 Connect to your thermostat.

1a Make sure the thermostat message center displays

Wi-Fi SETUP.

1b On the wireless device (laptop, tablet, smartphone),

view the list of available Wi-Fi networks

1c Connect to the network called

NewThermostat_123456 (the number will vary).

Note: If you are asked to specify a home, public, or

office network, select Home Network.

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Inside

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Connecting to your Wi-Fi network

2 Join your home network.

2a Open your web browser to access the

Thermostat Wi-Fi Setup page. The browser should automatically direct you to the correct page; if it does not, go to http://192.168.1.1

2b Find the name of your home network on this

page and select it.

Note: Some routers have enhanced features such as

guest networks; use your home network

2c Complete the instructions for joining your Wi-Fi

network and click on the Connect button. (Depending on your network setup, you may see an instruction such as Enter Password for your home network.)

Note: If you did not correctly connect to the thermostat, you may see

your home router page. If so, return to Step 1.

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+ 118 hidden pages