Honeywell RTH7000 User Manual

RTH7000 Series

69-1900EF-1

Programmable Thermostat

Installation Guide

This thermostat provides control of 24 VAC heating and cooling systems, or 750mV heating systems.

This manual covers RTH7400 and RTH7500 models.

(Pull thermostat from wallplate and turn over to find model number)

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 your local waste management authority for instructions regarding recycling and proper disposal.

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

Read and save these instructions.

® U.S. Registered Trademark. Patents pending.

Table of contents

RTH7400 /RTH7500

Getting started

Installation tips ...........................................2

Pre-installation checklist ...........................3

Old thermostat removal

Remove old thermostat ............................. 5

Identify and label wires ..............................6

New thermostat installation

Wallplate mounting ....................................7

Wire connections ..................................... 10

Battery installation ...................................13

Thermostat mounting ..............................14

Time/date settings ...................................15

System setup

How to change settings...........................16

System settings ..................................17-23

Appendices

In case of difficulty...................................24

Customer assistance ...............................27

1-year limited warranty ............................28

Installation Guide

Installation is easy—even if you’ve never done it before!

Your new thermostat has been designed for fast, easy installation. Just follow the simple, step-by-step instructions in the following pages.

Install in three simple steps

• Label wires and remove your old thermostat (see pages 5-6).

• Install and wire your new thermostat (see pages 7-15).

• Set your new thermostat to match your heating/cooling system (see pages 16-23).

Installation tips

• Have everything you need ready to go before you begin (see pages 3-4).

• Do not use wire color as a guide. Use wire labels instead (see page 8).

TURN OFF POWER at heating/cooling system (or fuse/circuit-breaker panel) before you begin installation.

Pre-installation checklist

Check to make sure your package includes the following items:

RTH7400 /RTH7500

RTH7400/RTH7500 thermostat

Operating manual

(wallplate attached to back)

Wall anchors and

mounting screws (2 each)

Wire labels

Installation Guide

Pre-installation checklist

Required tools & supplies

• No. 2 Phillips screwdriver

• Small pocket screwdriver

• Drill

• Drill bit (3/16” for drywall, 7/32” for plaster)

• Hammer

• Pencil

• Electrical tape

• Level (optional)

• Two fresh AA alkaline batteries

RTH7400 /RTH7500

Remove your old thermostat

1. Turn off power at heating/cooling system (or fuse/circuit-breaker panel).

2. Remove cover and thermostat, but leave wallplate with wires attached.

Leave wallplate in place

Is there a sealed tube containing mercury? If so, see inside front cover of this manual for proper disposal instructions.

Old thermostat

Cover

Installation Guide

Label wires and remove old wallplate

Use a screwdriver to disconnect wires one by one. As you disconnect each wire, wrap it with the label matching the letter on your old thermostat. (Adhesive labels are supplied in your thermostat package.)

Remove the old wallplate only after all wires are labeled. Be careful not to let loose wires fall into the wall opening.

Wrap supplied labels securely around each wire

Do not let wires fall into wall opening!

IGNORE WIRE COLORS: Use only letter designations to

identify wire types.

RTH7400 /RTH7500

Remove wallplate

Grasp top and bottom of wallplate and pull to remove from thermostat.

Wallplate

Installation Guide

Mark wallplate mounting position

1. Pull wires through wallplate.

2. Level wallplate if desired. 3. Mark positions of both screw holes.

Mount wallplate

1. Drill holes at pencil-marked locations: 3/16” holes for drywall 7/32” holes for plaster.

2. Use hammer to tap anchors into holes until flush with wall.

3. Place wallplate over anchors and insert screws. Check level if desired, then tighten screws.

RTH7400 /RTH7500

Installation Guide

O/B

Aux

Connect wires (typical installation)

1. Match each labeled wire with same letter on terminal. (Use HEAT PUMP letters if you have a heat pump system.)

2. Use a screwdriver to loosen screw terminals, insert wires, then tighten screws.

3. Push any excess wire back into the wall opening.

Labels don’t match?

If labels do not match letters on thermostat, see pages 11-12.

Remove metal jumper if you have both R and Rc wires.

Insert wires, then tighten screws.

Alternate wiring (conventional systems)

If labels do not match terminals, connect wires as shown here (see notes, below).

Remove metal jumper connecting R and

Rc only if you must connect both R and Rc wires.

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.

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.

RTH7400 /RTH7500

Installation Guide

Alternate wiring (for heat pumps only)

Leave metal jumper in place, connecting R & Rc terminals.

If your old thermostat had both V and VR wires, stop now and contact a qualified contractor 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, stop now and contact a qualified contractor for help.

If your old thermostat had Y1, W1 and W2 wires, stop now and contact a qualified contractor for help.

If L terminal is used, C terminal wire must be connected (contact a contractor if there is no C wire).

If E and Aux terminals do not each have a wire connected, use a small piece of wire to connect them to each other.

About your new thermostatInstall batteries

Install 2 fresh AA alkaline batteries in back of thermostat.

RTH7400 /RTH7500

Back of thermostat

Installation Guide

About your new thermostatRemove tab and mount thermostat

Remove tab.

Align pins on back of thermostat with slots in wallplate, then push gently until thermostat snaps into place.

TIP: If wires interfere when you try to mount the thermostat, push excess wire back into the wall opening.

About your new thermostatSet time/date and restore electrical power

Go Back Next Done

2006

RTH7400 /RTH7500

Month Year Day

TIP: Don’t forget to restore electrical power at the heating/cooling system, or at the fuse/circuit-breaker panel.

1. Press s or t to set month, then press NEXT.

2. Press s or t to set day, then press NEXT.

3. Press s or t to set year, then press DONE.

4. Press s or t to set time, then press DONE to save and exit.

Installation Guide

Go Back Next Done

0120

System Fan Done

0120

System setup

Function Setting

1. Press SYSTEM, then press and hold FAN until the screen changes.

2. Change settings as required (see pages 17-23).

Press s t to change setting.

Press NEXT to advance to next function. Press DONE to save & exit.

NOTE: Because of choices you make while programming, some functions in the following pages may not appear.

About your new thermostatSystem setup

Year setting (first two digits)

Function

0120

Options: 20 = Year 20xx

Year setting (second two digits)

Function

0130

Options: 01 - 99 (i.e., 2001 - 2099)

Month setting

Function

0140

Options: 01 - 12 (i.e., January - December)

Date setting

Function

0150

Options: 01 - 31

Press s/t to change the first two digits of the year:

21 = Year 21xx

Press s/t to change the last two digits of the year:

Press s/t to change the current month:

Press s/t to change the current date:

RTH7400 /RTH7500

Installation Guide

System setup

Select system type

Function

0170

Options: 1 Heat/cool: Gas, oil or electric heating with central air conditioning.

Press s/t to select your system type:

2 Heat pump: Single-stage heat pump (no backup or auxiliary heat). 3 Heat only: Gas, oil or electric heat without central air conditioning. 4 Heat only with fan: Gas, oil or electric heat without central air conditioning. 5 Hot water heat (no fan): Gas, oil or hot water heat without central air

conditioning.

6 Cool only: Central air conditioning only. 7 Multi-stage heat pump: Heat pump with backup or auxiliary heating. 8 Conventional multi-stage system: 2 heat stages (wires on W and W2),

2 cooling stages (wires on Y and Y2).

9 Conventional multi-stage system: 2 heat stages (wires on W and W2),

1 cooling stage (wire on Y).

10 Conventional multi-stage system: 1 heat stage (wire on W), 2 cooling

stages (wires on Y and Y2).

+ 44 hidden pages