Lennox 43558 Thermostat User Manual

41653_model43558.pmd

Introduction

CONGRATULATIONS!

Your new Climate Technology electronic thermostat will provide

years of reliable service. By saving energy, your thermostat will

pay for itself during its first season of use. Thank you for buying

a Climate Technology product!

Please read this manual for complete instructions on installing

and operating your thermostat.

If you require further assistance, call Climate Technology Techni-

cal Support at 800-676-7861 from 8 AM to 5 PM Central Time.

Model Information:

43558

Model Number ___________________________________________

Serial Number____________________________________________

Date Purchased __________________________________________

Where Purchased _________________________________________

Table of Contents

Read This Before Installing Thermostat

Features

6-7

8-9

INTRODUCTION

INSTALLATION

What You Need

10-11

Selector Switches

Remove Old Thermostat

Wire Labeling

13-15

Mount Wallplate and Thermostat

Connect Wires and Mount Thermostat Cover to Wallplate

PROGRAMMING

Option Menu

18-21

22-23

Setting Time and Day

Programming Introduction

Personal Program Schedule

Programming

Weekday/Weekend Programming

7-Day Programming

27-28

29-30

31-32

Everyday Programming

(continued)

41653_model43558.pmd

Table of Contents (continued)

Program Options

PROGRAMMING (continued)

Programmable Fan

2 or 4 Programs Per Day

Reviewing Programs

34-35

Power Switch

OPERATIONS

System Selection Key

Fan Key

System Indicator Light

Emergency Heat

37-38

Reviewing the Current Temperature Setting

Temporary Manual Override

Permanent Manual Override

Vacation (Programmable) Hold

Auto Season Changeover

Home Today

44-45

Energy Monitor

Filter Monitor

SPAN Settings

49-50

OPERATIONS (continued)

SAFETY FEATURES

Auto Recovery

Keyboard Lock

Backlighting (INDIGLO^®Night-Light)

Remote Sensors

51-52

AC Power Monitor

Low Battery Warning

Error Mode

TROUBLESHOOTING

WIRING DIAGRAMS

Problems & Solutions

Technical Support

56-57

Heat Pump Systems

Mulit-Stage Systems

41653_model43558.pmd

Read This Before Installing Thermostat

IMPORTANT

COMPRESSOR PROTECTION

Read the entire installation section of this Owner’s Manual

thoroughly before you begin to install or operate your Cli-

mate Technology Thermostat.

The thermostat provides a 3.5 minute delay after shutting off

the heating or cooling system before it can be restarted.

This feature will prevent damage to your compressor caused

by rapid cycling.

INSTALLATION

All installation is normally performed at your

thermostat.

TEMPERATURE RANGE

Your thermostat can be programmed between 45°F and 95°F

(7°C and 35°C). However, it will display room temperatures

from 15°F to 99°F (-9°C and 37°C). “HI” will be displayed if

the temperature is higher than 99°F (37°C), and “LO” will be

displayed if the temperature is lower than 15°F (-9°C).

ARMCHAIR PROGRAMMING

You can program your thermostat before installation by in-

serting the batteries and following the instructions starting

on page 18. This can be done while you relax in your favorite

chair and is a very good way to familiarize yourself with all the

functions of your Climate Technology Thermostat.

AUTO RECOVERY

Your thermostat is set from the factory to gradually recover

the room temperature from an energy saving program to

SYSTEM COMPATIBILITY

your comfort program. Therefore, the thermostat may turn your

system on several minutes prior to your programmed time. This

operation is normal, but can be turned off. Refer to the Options

Menu information on pages 18-21.

Your Thermostat is designed to operate these

24-Volt systems:

■ Multi-stage heat pumps with auxiliary heat

■ Multi-stage systems (2 stage heat, 2 stage cool)

This thermostat will not control 120/240 Volt systems or

millivolt systems.

OPERATION

BATTERY WARNING

This system operates on your system’s 24 Volt power supply.

The supply is monitored by the thermostat, and it will stop

Batteries may be used optionally to prevent the loss of your

thermostat’s clock, programs and options due to a power

outage. However, when the batteries become drained, a low

battery warning will appear on the display. When this message

occurs, install 2 new AAA batteries. You have approximately 30

seconds when changing the batteries to keep thermostat’s

clock and program settings.

functioning if AC power is lost. (When using backup batteries,

“No AC Pwr” will be displayed.) All system controls will remain

off until power is restored.

NOTE: The INDIGLO^®Night-Light will not function when

AC power is lost.

NOTE: The default system selection at power-on is HEAT.

Batteries are recommended to prevent an undesired sys-

tem change due to a power outage.

NOTE: Any remote temperature sensors (if used on your

system) will not operate when AC power is lost.

41653_model43558.pmd

Features

INDIGLO^®Night-Light

activated by pressing any key.

Alpha-numeric display shows time, day, temperature,

program number, and other feature information as required.

Home Today: Overrides energy-saving program

temperatures while you are at home for the day.

Energy Monitor:

Temperature Keys:

Keys for raising or

lowering temperature

settings.

Measures and displays

heating and cooling

system operating time for

Today, Yesterday, This

Month, Last Month, or

Total. By monitoring your

energy usage, you can

program the thermostat

to optimize energy

savings.

Power Switch:

Select ON, Positive

OFF, or Emergency

Heat.

Soft-touch

Reset: Press with a

paper clip to reset the

thermostat and return

to power-up settings.

programming

keypad, see details

below.

System Indicator LEDs: Show status

of Stage 1, Emergency, Stage 2, and

Check System.

Fan Key: Used to select fan mode.

Select Auto, ON, or Program

Controlled.

Option Key: Enters the option

menu.

System Key: Use to select system.

Select Heat, Cool or Auto.

Program Key: Enters Program

Mode for reviewing or chaning

Weekday, Weekend, Daily or

Everyday programs.

Day/Time Key: Used for entering

the Clock setting mode. Use with

the Up and Down keys to set the

time and day.

Program-Day Key: Selects the day

or days to review or change in

Program Mode.

Filter: Displays the filter usage

counter in hours and minutes.

Return-Clear Key: Returns to

normal display mode. Also clears

Filter and Energy counters, and

HOLD modes.

Vacation / Hold: Enters permanent and vacation

(Programmable) HOLD modes.

As an ENERGY STAR Partner, Climate Technology Corp. has determined that this

programmable thermostat meets the ENERGY STAR guidelines for energy efficiency.

41653_model43558.pmd

INSTALLATION

What You Need

This thermostat includes two #8 slotted screws and two wall an-

chors for mounting. To install your thermostat, you should have

the following tools and materials.

■

Slotted Screwdriver(s)

Phillips Screwdriver

Hammer

■

Electric drill and 3/16" bit

Two 1.5 V (AA) size alkaline batteries

Selector Switches

In order for this Climate Technology thermostat to control your

system, the system type must be specified by selector switch

on the rear inside if the thermostat. There are also other selec-

tor switches that allow you to customize the features to suit

your needs. Refer to Figure 2 for removal of wallplate.

System Selector Switches:

■

Heat Pump or Multi-Stage selector (HP-MS switch)

The factory position for this switch is in the “HP” position.

Leave it in this position if you have a heat pump system or

need emergency heat control.

NOTE: When changing these features after installation,

move the power switch to OFF before removing the ther-

mostat from the wall.

If you have a conventional multi-stage system (more than 1

stage of heat or cool), then slide the switch to the “MS”

position.

NOTE: The Emergency Heat Function operates both

stages of heat at the same time when in multi-stage

mode.

Selector Switches (continued)

■

Heating system selector (HG - HE switch)

The factory position for this switch is in the “HG” position. Leave it

in this position if you have a gas furnace or an oil burner.

If you have an electric furnace, test to see whether the Heat

and Fan come on as expected.

the switch can be moved to Disable. In this position, the Low

Battery Warning will not be displayed.

Climate Technology recommends that the Low Battery Warn-

ing be activated by sliding the switch to Enable, especially on

residential systems.

If Fan operation is normal, leave the switch in the “HG” position.

If the Fan does not come on within a minute of the thermo-

stat calling for Heat, change the switch position to “HE.”

This selector has no effect in the cooling mode.

Low Batt Warning Disable

Low Batt Warning Enable

NOTE: “HG” position is for gas and most other systems.

“HE” position is for certain electric systems having a

fan relay.

NOTE: This option is ignored when heat pump (HP) sys-

tem is selected.

ATTENTION: This

thermostat is powered by

24V AC from the system.

Please istall 2 AAA alkaline

HP-HEAT PUMP

MS-MUTI-STAGE batteries for clock and

memory backup.

■

Low Battery Warning Selector

This Climate Technology thermostat operates on your system’s

24V AC supply. Two AAA batteries may be installed to provide

clock operation and program retention during power outages.

The factory position for this switch has the Low Battery Warn-

ing Enabled. If the thermostat is to be used without batteries,

Figure A

41653_model43558.pmd

INSTALLATION

Remove Old Thermostat

CAUTION: Do not remove any wiring from existing ther-

mostat before reading the instructions carefully. WIRES

MUST BE LABELED PRIOR TO REMOVAL.

TYPICAL HOME THERMOSTATS

Figure 1

■

IMPORTANT! Turn off the power to the furnace at the main

power panel or at the furnace.

■

Remove existing thermostat cover. See Figure 1. Some ther-

mostats will have screws or other locking devices that must

first be removed. Once wall mounting plate is exposed, look

for wires.

Wall Mounting Plate

Thermostat

Cover

If wires are not visible, they may be connected to the back of

the wallplate. Again, look for screws, tabs, etc. Some models

have doors that open to expose wires and mounting screws.

(See Figure 1).

Wall Mounting Plate

Wire Labeling

■

Each wire coming from the wall to the existing thermostat is

connected to a terminal point on that thermostat. Each of

these terminal points is usually marked with a code letter as

shown in Table A below and on the next page.

SHOWN IN TABLE A and B ON PAGES 13-15. (For example,

attach the label marked W to the wire that goes to the W or H

terminal on your existing thermostat.) IGNORE THE COLOR OF

THE WIRES since these do not always comply with the standard.

■

The number of wires in your system can be as few as four

(for single-stage systems), as many as eight, or any number

in between. If you follow the labeling procedures correctly,

you do not have to be concerned about how many wires

there are.

IMPORTANT! BEFORE DISCONNECTING ANY WIRES, APPLY

THE SELF-ADHESIVE LABELS PROVIDED TO THE WIRE AS

■

After labeling wires, disconnect them from the existing ther-

mostat terminals.

Remove existing wallplate. To make sure wires do not fall back

into wall opening, you may want to tape them to the wall.

If hole in wall is larger than necessary for wires, seal this hole

so that no hot or cold air can enter the back of the thermostat

from the wall. This air could cause a false thermostat reading.

■

TABLE A – TERMINAL DESCRIPTIONS

TERMINAL

FUNCTION

LABELS

(HEAT PUMP MODE)

(MULTI-STAGE MODE)

COMMENTS

24VAC supply

Hot wire of 24VAC transformer. Powers the thermostat & system.

Activates the 1st stage compressor. (Heat or Cool for Heat Pumps)

Activates the 2nd stage compressor.

Compressor stage 1

Compressor stage 2

DO NOT CONNECT

Auxiliary heating

Cooling stage 1

Cooling stage 2

Heating stage 1

Heating stage 2

Activates the 1st stage of heating for Multi-stage systems ONLY.

Activates when auxillary heating is required on heat pump systems.

Activates the 2nd stage of heating for Multi-stage systems.

(continued)

41653_model43558.pmd

INSTALLATION

TABLE A – TERMINAL DESCRIPTIONS (continued)

TERMINAL

LABELS

FUNCTION

(HEAT PUMP MODE)

FUNCTION

(MULTI-STAGE MODE)

COMMENTS

Emergency heating

DO NOT CONNECT

Cooling damper

Heating damper

Activates Emergency heating ONLY when the System Switch is in

Emergency (em) Mode. (Ignored on Multi-stage systems)

Reversing valve

(cooling mode)

Activates reversing valve or damper in COOL mode.

ALWAYS ON in COOL MODE.

Reversing valve

(heating mode)

Activates reversing valve or damper in HEAT mode.

ALWAYS ON in HEAT MODE.

Fan

Activates the system Fan. (Can be Auto, On, or Program controlled)

System monitor

Activates System Check LED on the front of thermostat.

(Controlled by the system, not the thermostat.)

24VAC common

Common wire of 24VAC transformer. REQUIRED for thermostat operation.

Positive (+) Terminal for Remote Sensor #1. Polarity MUST be maintained.

RS1+

Remote temperature

sensor 1

Remote temperature

sensor 1

RS1-

Remote sensor 1 (common)

Negative (-) Terminal for Remote Sensor #1. Polarity MUST be maintained.

Positive (+) Terminal for Remote Sensor #2. Polarity MUST be maintained.

RS2+

Remote temperature

sensor 2

Remote temperature

sensor 2

RS2-

Remote sensor 2 (common)

Negative (-) Terminal for Remote Sensor #2. Polarity MUST be maintained.

TABLE B

HEAT PUMP CROSS-REFERENCE CHART

EXAMPLES OF DIFFERENT SYSTEM TERMINALS

CLIMATE

TECHNOLOGY

TERMINALS

BRYANT,

PAYNE

RHEEM-

RUUD

TRANE,

CARRIER

COLEMAN

COMFORTMAKER

WEATHERTRON

YORK

LENNOX (1) LENNOX (2)

Y or Y1

V-VR

jumper

to W2

jumper

to W2

L or F

L or X

C, X, X1

C, C1, X1

Note:W2 wires

no connection

Note:

T wire no

connection

NOTE: If your heat pump thermostat does not have an E wire, use the provided jumper wire to connect the E terminal to

the W2 terminal, as shown in three examples above. Refer to the Wiring Diagrams on pages 58-59.

41653_model43558.pmd

INSTALLATION

Mount Wallplate and Thermostat

■

Remove the wallplate from your thermostat by pressing the

release tab on the bottom of the thermostat. (See Figure 2.)

■

Drill holes with 3/16" bit and gently tap anchors into the

holes until flush with wall.

Position wallplate on wall and pull existing wires through

large opening. Then level for appearance. Mark holes for plas-

tic anchors provided if your existing holes do not line up with

those on the Climate Technology wallplate.

Reposition wallplate to wall, pulling wires through large

opening. Insert mounting screws provided into wall anchor

and tighten. (See Figure 3.)

Figure 2

Figure 3

Connect Wires and Mount Thermostat Cover to Wallplate

■

Straighten bare end of each wire and cut or strip it to 1/4”

maximum. Insert each labeled wire into the bottom of the

maching terminal. Refer to figures 4 and 5.

Figure 4

Hold the wires in each terminal and tighten the terminal

screws securely, otherwise a loose wire could cause opera-

tional problems with your system or thermostat.

Push excess wire back into hole to prevent interference with

mounting of the thermostat.

Insert

■

Make sure the Power Switch is set to OFF.

Y2 G C L O W2 B E R Y1 W1

Insert two AAA size alkaline batteries, observing the polarity

marked on the unit.

■

Insert the upper tabs on the thermostat body into the slot at

the top of the wallplate. Press bottom of the thermostat body

to snap it into the wallplate. (NOTE: Do not force the ther-

mostat onto the wallplate, as the terminal pins may be

damaged. If it does not snap properly, the thermostat

may not work.)

G C L O W2 B E R Y1 W1

Switch on the main power at the panel or furnace.

RS1+ RS1- RS2+ RS2-

Figure 5

41653_model43558.pmd

PROGRAMMING

Option Menu

Your thermostat has many settings that can be adjusted to fit your system and preferences.

■

Press to enter the Option Menu and to change to the next option selection.

option

ret-clear

■

Press at any time to return to normal mode.

Local temperature sensor weighting

option

Local

Temp

■

to change weighting between FULL,

HALF or OFF.

Remote temperature sensor 1 weighting

option

■

to change weighting between FULL, HALF or

Reamote-1

Temp

OFF. The factory default is “HALF.” The current temperature measure-

ment from sensor 1 is shown. (Blank if not connected.)

Remote temperature sensor 2 weighting

option

Remote-2

Temp

■

to change weighting between FULL, HALF or

OFF. The factory default is “HALF.” The current temperature measure-

ment from sensor 2 is shown. (Blank if not corrected.)

NOTE: Refer to the Remote Sensors section on pages 51-53 for more information on sensor weightings.

Fahrenheit or Celsius (F°/C°) selection

Temp

option

■

to change the thermostat display between

Fahrenheit and Celsius.

12 Hr or 24 Hr. Clock selection

Clock

■

or to change the time format display between

12 hour (AM / PM) and 24 hour (military).

option

(continued)

41653_model43558.pmd

PROGRAMMING

Option Menu (continued)

Stage 1 SPAN selection

Span Stg1

Span Stg2

■

to change the SPAN setting to 1, 2, or 3. The

option

factory setting is 2. Setting 1 will cause shorter cycle times. Setting 3

will cause longer cycle times.

Stage 2 SPAN selection

■

to change the SPAN setting to 1, 2, 3, 4, 5 or 6.

option

The factory setting is 2. Lower settings will cause the 2nd stage to turn

on sooner. Higher settings will cause the 2nd stage to turn on later.

NOTE: Refer to the SPAN section on page 48 for more information on SPAN settings.

Auto Season Changeover Deadband selection

Recovery

■

to change the deadband between 3, 4, 5 or 6°F,

option

The factory setting is 5. (°C are about 1/2°F)

System

NOTE: Refer to the Auto Season Changeover section on page 43 for more information.

Auto Recovery selection

Recovery

■

to enable “YES” or disable “NO” the Auto

option

Recovery Mode. The factory setting is “YES.”

System

■ To change between Heat or Cool recovery modes.

system

NOTE: Auto Recovery is one of the ENERGY STAR^®features of this thermostat. Refer to the Auto Recovery section on

pages 49-50 for more information.

LCD Contrast adjustment

■

to change the LCD contrast between 0 and 9.

option

LCD

Lower numbers lighten the display. Higher numbers darken the display.

The factory setting is 5.

41653_model43558.pmd

PROGRAMMING

Setting Time and Day

■ The LCD will show this information when batteries are first installed, or after

the Reset button is pressed.The temperature will update after a few seconds.

Monday

Temp

■ During time and day setting mode, the temperature and program

displays will go blank.

System

Fan

■ Example: Set the Thermostat to the current time of 2:16 PM on Saturday.

Refer to the Steps below.

Step 1

Step 2

■ Press to enter time and day setting mode. The current hour and the

AM / PM indicator will be flashing.

day-time

Monday

■ Press to change the Hour up or down to the current hour.

Note the AM / PM indicator, as the display will change at 12 AM

and 12 PM.

■ Press again to change from hour setting to minute setting. The current

minute will be flashing.

day-time

Monday

■ Press to change the Minute up or down to the current minute.

Step 3

Step 4

■ Press again to change from minute setting to day setting. The current

day will be flashing.

day-time

Saturday

■ Press to change the Day up or down to the current day.

■ Press again to change back to the normal display.

day-time

Temp

Saturday

ret-clear

System

Fan

ret-clear

NOTE: You may press

at any time during Day and Time setting to return to the normal display.

12 Hr. / 24 Hr. Time Format

Your thermostat is set from the factory in normal 12

(AM / PM) time format. To change to 24 hour (military)

formats. The AM / PM indicator will not be displayed in 24

hour mode. Both the current time and all programs will auto-

matically change to the selected format. The time format may

also be changed in the Option Menu.

time, press

at any time while the Hour, Minute,

option

or Day is flashing to toggle between the 12 hour and 24 hour

41653_model43558.pmd

PROGRAMMING

Programming Introduction

Studies conducted by the Department of Energy estimate that

setting your thermostat back 10°F (6°C) for two 8-hour periods

during winter can reduce your fuel bill by as much as 33%. By

setting your thermostat up 5°F (3°C) for two 8-hour periods dur-

ing summer you can reduce your fuel bill up to 25%.

You can program weekdays as a group, weekends as a group, all

7 days individually or everyday as a group.

The system fan may also be set to run continuously during a pro-

gram time period. Finally, the number of programs per day can

be reduced from 4 to 2 if desired.

Your thermostat is capable of holding up to 4 separate programs

for each day of the week.

Your Climate Technology thermostat is pre-programmed to meet

the ENERGY STAR^®guidelines for energy efficiency.

■ At power-up or after a reset, all 7 days of the week have these default programs:

Temperature in F° (C°)

Program Number

Time

6:00am

8:00am

4:00pm

10:00pm

Heat

Cool

68°F (20°C)

60°F (16°C)

68°F (20°C)

60°F (16°C)

78°F (26°C)

85°F (29°C)

78°F (26°C)

82°F (28°C)

■ The following sections describe how to change these programs.

Personal Program Schedule

Before changing programs, use this Personal Program Schedule

to determine which times and temperature settings will best sat-

isfy both your comfort and energy saving requirements.

Use a pencil so you can revise your records each time you

change your temperature settings.

Heating

Cooling

Day

Prog. 1

Prog. 2

Time

Temp

Prog. 3

Time

Temp

Prog. 4

Time

Temp

Day

Prog. 1

Prog. 2

Time

Temp

Prog. 3

Time

Temp

Prog. 4

Time

Temp

Mon. Time

Temp

Mon. Time

Temp

Tues. Time

Temp

Time

Temp

Time

Temp

Time

Temp

Tues. Time

Temp

Time

Temp

Time

Temp

Time

Temp

Wed. Time

Temp

Time

Temp

Time

Temp

Time

Temp

Wed. Time

Temp

Time

Temp

Time

Temp

Time

Temp

Thurs. Time

Temp

Time

Temp

Time

Temp

Time

Temp

Thurs. Time

Temp

Time

Temp

Time

Temp

Time

Temp

Fri.

Time

Fri.

Time

Temp

Sat.

Sun.

Time

Temp

Time

Temp

Time

Temp

Time

Temp

Sat.

Sun.

Time

Temp

Time

Temp

Time

Temp

Time

Temp

Time

Temp

41653_model43558.pmd

PROGRAMMING

Programming

■ Your thermostat can be programmed for weekdays and week-

ends, have unique programs for all 7 days, or the same pro-

gram for everyday. Use Weekday/Weekend Programming be-

low, 7-day Programming on page 29, or Everyday Program-

ming on page 31 to enter or revise programs to match your

Personal Program Schedule.

3) The Heat setpoint can not be set higher than the

Cool setpoint, and the Cool setpoint can not be

set lower than the Heat setpoint.

4) If the system selector is in AUTO mode, the

current operating mode will be used for pro-

gramming.

■ Familiarize yourself with Manual Programming, so that you

can easily modify your programs as your comfort needs

change. Follow the steps below to change the program times

and temperatures.

5) After 15 seconds without a key press, the ther-

mostat will return to normal display mode.

6) When setting the program time, note the AM /

PM indicator.

NOTE: 1) The program time can be set in 10 minute incre-

ments, and remains the same for both Heat and

Cool programs.

7) With the Auto Recovery feature enabled, you do

not need to set your comfort program times

early. Auto Recovery will determine how early to

turn your system on, so that the room is com-

fortable at the program time.

2) The program temperature can be set in incre-

ments of 1°F (1°C).

Weekday/Weekend Programming

Step 1

■ Slide Power Switch to ON.

Temp

Thursday

■ Press to select HEAT or COOL to program the corresponding system.

(AUTO may be selected, but does not affect the programming steps.)

on off em

System

Fan

NOTE: If the power switch is in the OFF position, the last system selected will

be programmed.

Step 2

Step 3

■ Press to enter program mode. Weekdays are displayed and program

1 is flashing.

program

2 3 4

Temp

Weekdays

■ The Program hour and AM or PM indicator are flashing. Press to

change the hour.

System

Fan

Step 4

program

■ Press again to change to the minute position. The current minute

will be flashing.

Temp

Weekdays

■ Press to change the minute.

System

Fan

(continued)

41653_model43558.pmd

PROGRAMMING

Weekday/Weekend Programming (continued)

Step 5

■ Press again to change to the program temperature. The current

temperature will be flashing.

program

2 3 4

Temp

Weekdays

■ Press to change the temperature.

System

Fan

Step 6

Step 7

■ Press again to move to the next program number.

program

■ Repeat Steps 3 through 5 to change the remaining Weekday programs.

■ Press to change to Weekend programs.

prog-day

ret-clear

Temp

Weekends

■ Repeat steps 3 through 5 to complete the weekend programs.

■ Press at any time to exit the Program Mode.

System

Fan

■ After 15 seconds, the thermostat will return to normal mode

automatically.

system

Step 8

■ Change to the other system, and repeat steps 2 through 7.

7-Day Programming

Step 1

■ Slide Power Switch to ON.

Temp

Thursday

on off em

system

System

Fan

■ Press to select HEAT or COOL to program the corresponding system.

(Auto may be selected, but does not affect the programming steps)

Step 2

Step 3

Step 4

program

prog-day

■ Press to enter program mode, display shows weekday programs.

■ Press 2 times to reach the Monday program.

Temp

Monday

System

Fan

■ The Program hour and AM or PM indicator are flashing. Press to

change the hour.

Temp

Monday

■ Press again to change to the minute position. The current minute will

be flashing.

program

System

■ Press to change the minute.

Fan

(continued)

41653_model43558.pmd

PROGRAMMING

7-Day Programming (continued)

Step 5

■ Press again to change to the program temperature. The current

temperature will be flashing.

program

2 3 4

Temp

Monday

■ Press to change the temperature.

System

Fan

Step 6

Step 7

■ Press to move to programs 2, 3 and 4.

program

prog-day

■ Repeat Steps 3 through 5 to complete the programs for Monday.

■ Press to change to the next day’s programs.

■ Repeat Steps 3 through 6 to complete the selected day’s programs.

■ Continue repeating Steps 3 through 7 to program all 7 days of the week.

Step 8

Step 9

■ When finished, press to return to normal mode.

ret-clear

system

■ After 15 seconds, the thermostat will return to normal mode automatically.

■ Change to the other system and repeat steps 2 through 8 above.

Everyday Programming

Step 1

■ Slide Power Switch to ON.

Temp

Thursday

on off em

system

System

Fan

■ Press to select HEAT or COOL to program the corresponding system.

(Auto may be selected, but does not affect the programming steps)

Step 2

■ Press to enter program mode, display shows weekday programs.

■ Press 9 times to reach the Everyday program.

program

prog-day

Temp

Everyday

System

Fan

Step 3

Step 4

■ The Program hour and AM or PM indicator are flashing. Press to change

the hour.

Temp

Everyday

■ Press again to change the minute position. The current minute will

be flashing.

program

System

Fan

■ Press to change the minute.

(continued)

41653_model43558.pmd

PROGRAMMING

Everyday Programming (continued)

Step 5

■ Press again to change to the program temperature. The current tem-

perature will be flashing.

program

2 3 4

Temp

Everyday

■ Press to change the temperature.

System

Fan

Step 6

■ Press again to move the next program number.

■ Repeat Steps 3 through 5 to change the remaining programs.

■ Press at any time to exit the Program Mode.

program

ret-clear

■ After 15 seconds, the thermostat will return to Normal

mode automatically.

Step 7

system

■ Change to the other system and repeat steps 2 through 6.

Program Options

Programmable Fan

fan

■ Any time during programming, this will change the fan display between

“AUTO” and “ON” for the selected system and Program number. (Heat

and Cool can be set separately.)

2 3 4

Weekdays

Temp

“AUTO” = Fan control runs when the system is ON

“ON” = Fan control runs continuously

System

Fan

NOTE: Fan must be set to “PGM” for the Programmable Fan to

be activated.

2 or 4 Programs Per Day

■ Any time during programming, this will change the number of programs

per day between 2 and 4.

option

Weekdays

Temp

Program numbers 2 and 3 are turned OFF when 2 programs per

day are selected.

System

Fan

■ The display will show which programs are available. If only the active

program number is displayed, then there is a difference between days of

the selected group.

41653_model43558.pmd

PROGRAMMING

Reviewing Programs

You may want to review the programs to confirm that the settings are compatible with your lifestyle.

■ Press to display M - F programs.

Weekday

Programs

program

2 3 4

Temp

Weekdays

■ Press repeatedly to cycle through the 4 programs.

System

Fan

■ Press to display the Sa - Su programs.

Weekend

Programs

prog-day

program

Weekends

Temp

■ Press repeatedly to cycle through the 4 programs.

System

Fan

Daily and

Everyday

Programs

■ Press to display M - F programs.

program

Weekdays

Temp

NOTE: Time or Temperature display will be blank when at least

one weekday program is different. (All programs will de dis-

played if programmed in Everyday mode.)

System

Fan

Daily and

Everyday

Programs

(cont.)

■ Press to change to Sa - Su. Again, if part of the display is blank, one of

the weekend programs is different.

prog-day

program

Temp

Monday

■ Press again to change to Monday’s program.

System

Fan

■ Continue pressing to cycle through each day, or to reach the Everyday

programs.

■ Press repeatedly to cycle through the 4 programs.

ret-clear ■ Press to return to normal mode.

■ After 15 seconds, the thermostat will return to normal mode

automatically.

NOTE: Programs take affect as soon as the thermostat returns to normal mode.

If you are armchair programming the thermostat, slide the system selector to the OFF position before

mounting the thermostat to the wallplate.

41653_model43558.pmd

OPERATION

Power Switch

The Power switch on the front of the thermostat determines the operating mode of the thermostat.

You may select ON, OFF or Emergency Heat (EM). When the Power Switch is OFF, all outputs are posi-

tively disconnected from the system.

on off em

NOTE: Anytime you install or remove the thermostat from the wallplate, slide the Power

Switch to the OFF position to prevent the possibility of a rapid system On-Off.

NOTE: When Emergency Heat (em) is selected on a multi-stage system, the thermostat will

activate both stages of heat (W1 and W2). Thus, the heat control becomes single-stage.

System Selection Key

System

■ Press to select the desired system.

system

■ When Auto is selected, the system will change between Heat and Cool

automatically. Refer to the Auto Season Changeover section on page 43.

NOTE: The default system selection at power-on or after a reset

is HEAT. Therefore it is recommended that 2 AAA batteries be

used for backup during power outages.

System

Fan Key

Fan

■ Press to set the fan operation.

fan

■ AUTO: the fan will turn on with the system. On a multi-stage system, the

fan is controlled by the system when the Heating system selector has

been set to HG.

ON: the fan will run continuously.

Fan

PGM Auto or ON: (Programmable Fan) The fan will select AUTO or ON,

depending on the setting in the programs. Refer to the Program Option

section on page 33.

NOTE: The fan must be set to “PGM” for the fan’s program set-

tings to take effect.

System Indicator Light

When the thermostat activates your system, LED lights are turned on just below the LCD display.

•

1 em

red

yellow

green or red

System Monitor

This red LCD is controlled by your system and will turn on if there is a problem with your

system. It can only work if you have a connection to the L terminal.

(continued)

41653_model43558.pmd

OPERATION

System Indicator Light (continued)

•

1 em

Stage 1 Light

This LED will turn on in GREEN when the first stage of heat or cool is activated.

When in Emergency Heat mode, this LED will turn on in RED when the first stage of

emergency heat is activated.

Stage 2 Light

This LED will turn ON in YELLOW when the second stage of heat, emergency heat or

cool is activated.

The Stage 1/Emergency and Stage 2 LED’s will flash On/Off when the corresponding stage is being held off tem-

porarily. For example, during a compressor delay.

Emergency Heat

When the Power Switch is in the “em” position, the thermostat

is placed in the Emergency Heat mode. The compressor will not

operate in this mode and only auxiliary heat will be used.

NOTE: Emergency Heat Mode is not an energy saving set-

ting, so use only when necessary.

When Emergency Heat is selected on a multi-stage system, both

stages of heat operate at the same time. So, the heating acts like

a single-stage system.

Reviewing the Current Temperature Setting

■ Current time and temperature.

Saturday

Temp

■ Thermostat is set to AUTO and the heating system is selected.

System

Fan

■ Press for 1 second or less.

Saturday

Set Temp

Temp

■ Set Temperature is shown beside current room temperature.

■ If held for over 1 second, Temporary Manual Override mode is entered.

System

Fan

Refer to the next section.

41653_model43558.pmd

OPERATION

Temporary Manual Override

To temporarily change the current set temperature without affecting your program:

■ Press

and hold for about 1 second to enter

Manual Override mode. Display will flash.

■ Press

to change to your desired new temperature.

Set Temp

Temp

■ Press to return to normal mode, or wait 5 seconds for it to return automatically.

■ The current program number will flash to signify the Temporary Override.

ret-clear

System

Fan

■ At the next program change, the Temporary Override is canceled, and

the next program temperature becomes the setpoint temperature.

To end the Temporary Manual Override:

■ Press to return the set temperature to the current program set temperature.

ret-clear

NOTE: The Auto Season Changeover feature will not operate while the thermostat is in Temporary Manual Over-

ride. Refer to the Auto Season Changeover feature on page 43 for more information.

NOTE: If Vacation Hold is set, then the number of days remaining will also be displayed. Refer to the Vacation

(Programmable) Hold section on page 42 for more information.

Permanent Manual Override

To hold your manual override for an extended period of time:

■ Press to make the current room temperature the HOLD tempera-

ture. HOLD will alternate on the display with the day and any

other messages.

Hold

hold

Temp

System

■ Follow the Temporary Override instructions above to change the

Fan

Permanent Override temperature.

■ You can confirm the held set temperature by pressing for less

than 1 second.

To end the Permanent Manual Override:

■ Press to return to the current program. The HOLD display will be canceled.

ret-clear

NOTE: The Auto Season Changeover feature will not operate while the thermostat is in Permanent Manual Over-

ride. Refer to the Auto Season Changeover feature on page 43 for more information.

41653_model43558.pmd

OPERATION

Vacation (Programmable) Hold

This thermostat can hold a fixed temperature for a selected number of days (up to 30). After the selected number of days, the thermo-

stat will return to normal program operation. This feature allows you to return home to your normal comfort setpoint temperatures.

■ Press and hold for 2 seconds to enter Vacation Hold mode. The set tem-

perature will be the current room temperature and the Vacation counter

will be set to 1 day.

Vacation

hold

Day

Set Temp

Temp

■ Use to set the Vacation Hold temperature.

System

Fan

■ Press to set the Vacation Hold counter to the number of days you will be

away from home.

day-time

■ “Vacation” will alternate on the display with the day and any other

messages.

To end Vacation Hold:

■ Press to return to the current program. The flashing Vacation display will be canceled.

ret-clear

NOTE: The Auto Season Changeover feature will not operate while the thermostat is in Vacation (Programmable) HOLD.

Refer to the Auto Season changeover feature on page 43 for more information.

Auto Season Changeover

When the System Selection is in AUTO position, the thermostat

will automatically change between Heating and Cooling systems,

depending on your program. We recommend keeping your pro-

grammed heating and cooling temperatures at least 5°F (3°C)

apart to allow the Auto Season Changeover to occur when the

appropriate temperature span has been reached. However, if

your heating and cooling programs set temperatures are close,

there is a built-in program to prevent the thermostat from

changing unnecessarily. This “Deadband” can be adjusted. Refer

to the Options Menu section on pages 18-21.

play. “AUTO” will return when these holds are cleared. Auto Sea-

son Changeover will still function in Home Today mode, as this is

a comfort setting.

For example, you may have the following temperatures pro-

grammed at a given time:

Heat Set Temp = 68°F

Cool Set Temp = 78°F

If the room temperature rises above 78°F, then the thermostat

will automatically change to cool mode and turn on the air

conditioner.

Auto Season Changeover is disabled when the thermostat is in

Temporary or Permanent Override, or Vacation Hold, as these

overrides are energy saving settings. While in any of these

modes, “AUTO” will be temporarily removed form the LCD dis-

Likewise, the thermostat will automatically change to heat mode

and turn on heat when the room temperature falls below 68°F.

41653_model43558.pmd

OPERATION

Home Today

This Climate Technology patented feature allows you to quickly and temporarily override your energy saving program setting on days

when you are normally away from home with one key press.

■ Press to enter the Home Today override. The highest program tempera-

Home

ture for today will be selected from your programs in Heat mode and

Temp

become the set temperature. (In Cool mode, Home Today will select the

lowest program temperature for today to be the set temperature.)

y ^a

System

Fan

■ “HOME” will alternate on the display with the day and any other

messages.

■ When pressed during the first or second program of the day, Home To-

day will automatically return to program control at the start of the

fourth program of the day. If Home Today is pressed after the start of the

third program time of the day, the thermostat will remain in Home To-

day mode until the first program of the next day.

■ If Home Today is already active, you may similarly extend it to the first

program of the next day by pressing the key again after the start time of

the third program.

y ^a

■ If the system is changed between Heat and Cool modes (either manually

or by Auto Season Changeover) during the “Home Today” override pe-

riod, the setpoint temperature will be automatically updated. It will au-

tomatically change from the highest heat program setpoint to the low-

est cool program setpoint, or from the lowest cool program setpoint to

the highest heat program setpoint.

■ Press to exit Home Today mode before the schedule ending time.

“HOME” is no longer displayed on the LCD screen, and the thermostat

returns to the current program.

hold

■ You can manually change the setpoint temperature while in Home Today

mode. Refer to the Temporary Manual Override instructions on page 40.

Manually changing the set temperature while in Home Today mode will

not affect the Home Today ending time. However, the set temperature

will not change automatically with a manual or Automatic change be-

tween heating and cooling.

■ You may also press the Home Today key while in Temporary Manual

Override. The operation is the same as the previous point above.

y ^a

41653_model43558.pmd

OPERATION

Energy Monitor

The Energy monitor feature measures and stores the amount of

time the heating and air conditioning system operates. Usage

can be displayed for Today (since 12AM), Yesterday, This Month

(up to 30 days), Last Month (last 30 days), and Total (up to 999

Hrs. 59 Min.). By monitoring your energy usage, you see how

much the setback periods are saving and you can test program

adjustment to save even more. Use table on page 25.

_or

■ To review energy usage, press to cycle through Today, Yesterday, [num-

ber] Days, Last 30 days, and Total. Press again to return to normal mode,

_it

Today

or wait 15 seconds for the display to return to normal mode. You can

also return to normal mode at any time by pressing RET CLEAR.

^re

Min

ⁿe

■ For example: This LCD display shows Today’s usage to be 10 Hours, 26

minutes.

■ Press and hold for 3 seconds to reset the Energy Monitor’s counters

while in Energy Monitor mode. The display will blink, and all counters

will be cleared to zero.

ret-clear

Filter Monitor

Your thermostat also keeps a record of the number of hours your filter has been in use. To maximize your system’s performance and en-

ergy efficiency, change or clean your filter regularly.

■ When the total system run time for heat and cool reaches 500 hours,

“FILTER” will alternate on the display with the day to remind you to

Filter

Temp

clean or change your system’s filter. “FILTER” will continue to display

until the counter is set back to zero.

System

Fan

■ Press to review total filter usage. After 15 seconds, the display will re-

turn to normal mode, or you can hit RET CLEAR to exit immediately. The

Filter Monitor will display up to 999 hours and 59 minutes of usage.

filter

In this example, the counter is at 410 Hours, 26 minutes.

Filter

ret-clear

■ To reset the Filter Monitor counter, hold for 3 seconds.

Min

The display will blink, and the counter will be reset to zero.

41653_model43558.pmd

OPERATION

SPAN Settings

STAGE 1

STAGE 2

Your thermostat is set at the factory to cycle at 1°F (0.5°C)

above and below the set temperature in Stage 1. (Span = 2.) This

setting has been designed to provide a comfortable room tem-

perature under most all conditions. However, if you find your sys-

tem cycling too fast or too slow, then the Span can be adjusted

to modify the cycle time. Refer to the Option Menu Stage 1 Span

selection on page 20.

The second (or auxiliary) stage turns on when the first

stage does not have enough capacity to reach the desired

set temperature.

The factory setting for Stage 2 Span is 2. It can be adjusted be-

tween 1 to 6; with the second stage being activated sooner at

lower numbers and later at higher numbers.

Span = 1. This decreases the cycle time by causing your

system to run shorter.

Span = 3. This increases the cycle time by causing your

system to run longer.

The Span settings remain the same for both HEAT and COOL.

The Span can be changed at any time and is independent of pro-

gram times or temperatures.

When the thermostat is powered on or the Reset key is pressed,

the Span is reset back to setting 2.

Auto Recovery

Climate Technology’s Auto Recovery feature meets the ENERGY

STAR^®guidelines for energy efficiency by allowing the heating or

cooling system to recover gradually from an energy-saving

setpoint temperature to a comfort setpoint temperature. In Heat

Pump mode, it also maximizes the efficiency of recovery by mini-

mizing the use of auxiliary heat, which results in maximum sav-

ings in various weather conditions.

■ When the thermostat is

in Auto Recovery mode,

the display will alternate

“RECOVERY” with the

day, and the program

indicator will flash.

Temp

Recovery

System

Fan

Details of Auto Recovery Operation:

Auto Recovery calculates how early to turn your system back On,

so that the room temperature is already comfortable by the start

of the comfort temperature program period. Auto Recovery

works in both Heat and Cool modes.

■ Auto Recovery can be disabled by selecting “NO” in the Op-

tion Menu. Refer to page 21.

■ Auto Recovery will not operate if Permanent hold, Vacation

hold Temporary hold or Home Today is in operation. It will

also not operate if the thermostat resets due to AC power loss

with no backup batteries.

■ Auto Recovery can be canceled manually if RET CLEAR is

pressed during the recovery process. If a recovery process is

canceled manually then the recovery process will not start

again until the next program period starts (an exception is

that if time or program is changed then the thermostat will

check Auto Recovery conditions immediately).

For example, in Heat mode, you could have the following

programs:

Program #4 (Overnight)

Set Temp = 60°F

Time = 10PM

Program #1 (Morning)

Set Temp = 68°F

Time = 6AM

The room temperature fell to 60°F overnight. Rather than having

the thermostat turning on at 6AM, Auto Recovery would note

the temperature difference between 60°F and 68°F and turn the

Heat on approximately 30 minutes early. Therefore, the room

temperature at 6AM would be about 68°F instead of 60°F.

(continued)

41653_model43558.pmd

OPERATION

Auto Recovery (continued)

■ Auto Recovery will be canceled if HOME TODAY or HOLD is

pressed during the recovery process. The thermostat will enter

Home Today, Permanent hold or Vacation hold.

■ If the system changes between heat and cool (automatically

or manually) then the thermostat will recalculate Auto Recov-

ery again. Setpoint temperature will be changed to the oppo-

site system’s comfort temperature if the recovery entry criteria

are still met. Otherwise, the recovery process will be canceled

and return to program control mode.

■ Auto Recovery will be canceled and change to Temporary

Manual Override mode if the setpoint is adjusted during the

recovery process.

Keyboard Lock

The Keyboard can be locked to prevent unauthorized changes to the thermostat.

■ To lock or unlock the keyboard, press and hold BOTH keys for 3 seconds.

The keyboard is locked when KEY LOCK appears on the display.

Key Lock

Temp

and

System

Fan

■ All keys are locked, but any time a key is pressed, KEY LOCK will appear

on the display for 1 second and the backlight will operate.

Backlighting (INDIGLO^®Night-Light)

Your thermostat has an electroluminescent lamp that backlights

the display for easy viewing in the dark.

erate several keys. The backlight will decrease in brightness be-

fore shutting off.

When any key is pressed the display is illuminated.

NOTE: The backlight is powered by the 24V AC supply. It

will not operate when there is an AC power interruption

or if the thermostat is removed from the wallplate.

The display will remain illuminated for 15 seconds after the last

key is pressed. This allows the light to stay on if you need to op-

Remote Sensors

This Climate Technology thermostat supports the addition of 1 or

2 optional remote sensors (Model 43658). Along with the sensor

inside the thermostat (Local), the displayed room temperature can

be a weighted average of these sensors. The Option Menu on

pages 18-21 shows how to change the weighting of each sensor.

How to use the weights to control temperature:

■ To take a simple average of all sensors, set all of them to

FULL or HALF. (This gives the same result because the

weight is the same.)

■ To give priority to one area over another, set the priority sen-

sor to FULL and the other 1 or 2 sensors to HALF. (Setting 2

sensors to FULL and the 3rd to HALF gives even more weight

to sensors 1 and 2.)

Description of the weightings:

FULL = The full temperature value is used in the averaging

calculation

■ To control only from the reading of a single Remote sensor,

set the desired sensor to FULL, and the other Remote and Lo-

cal sensor to OFF.

HALF =Half of the temperature value is used in the averaging

calculation

OFF = The temperature is ignored, and not used in the aver-

aging calculation.

(continued)

41653_model43558.pmd

OPERATION

Remote Sensors (continued)

Notes on sensor calculations:

■ If the sensor reading exceeds temperature limits (“HI” or “LO”) then the maximum or

minimum value will be used in the calculation.

■ If all 3 sensors are set to OFF, the Local sensor will automatically be set to FULL.

■ If there is a problem with the installed remote sensors, then the Local sensor reading

will be used for the temperature.

Detection of Remote Sensors:

Temp

Found RM1

■ When AC power is present, the thermostat can detect any remote sensors connected. (It

may take up to 30 seconds.) “Found RM1” or “RM2” will alternate with the day display.

System

■ The maximum distance a remote sensor can be wired to the thermostat is 328 ft.

(100m). For short distances up to 100 ft. (30m), standard thermostat wire will work. For

longer distances, or environments with a lot of RF noise, shielded or twisted pair wire

should be used.

Fan

Temp

Check RM1

■ If the thermostat has a problem communicating with a remote sensor, then “Check

RM1” or “RM2” will alternate with the day display.

System

Fan

Review Remote Sensor Temperatures:

■ Press to see the currently measured temperature for each sensor, along

with its weight.

option

■ Example: Standard display

Temp

Thursday

System

Fan

Local Sensor

Local

Remote Sensor 1

Remote Sensor 2

Remote-1

Remote-2

Temp

option

The system is controlling around the weighted average of 68°F, based on readings of 70°F, 67°F and 65°F.

41653_model43558.pmd

SAFETY FEATURES

AC Power Monitor

■ This thermostat operates on 24V AC, which is provided by your system’s transformer. If

the system loses electricity, then the 24V AC power is lost also.

■ The 2 AAA batteries provide backup operation of the clock, as well as all programs

and settings.

■ If the AC power is lost, then the LCD display will alternate “No AC Pwr” with the day.

Temp

No AC Pwr

■ Without AC power, the following functions are disabled:

- The system is turned off.

System

Fan

- The Backlight function is disabled.

- The remote sensor temperature readings are not available.

Low Battery Warning

Your thermostat has a low battery warning system. When the

AAA alkaline batteries. You

have 30 seconds to change

the batteries before the set-

tings are lost.

Temp

Low Batt

batteries are detected to be weak, the low battery warning is

indicated by “Low Batt” alternating on the LCD display with

the day. You then need to replace the batteries with 2 new

System

Fan

Error Mode

If the thermostat is unable to control your system due to an

unexpected problem, the thermostat will enter Error Mode. In

this condition, the thermostat flashes “Error” and a code num-

ber on the LCD display, and shuts off your system.

to the keypad. You will

need to reprogram your

thermostat and confirm

normal operation.

Error

To correct this problem, replace the batteries with 2 new

AAA alkaline batteries, even if you have recently replaced

them. Next, use a paper clip to press the RESET button next

If Error Mode returns, please

call Climate Technology Tech-

nical support at 800-676-7861 for further information.

41653_model43558.pmd

TROUBLESHOOTING

Problem

Solution

SCRAMBLED OR DOUBLE DISPLAY

(numbers over numbers)

1. Remove clear Mylar sticker

NO DISPLAY

1. Check terminal connection. A common (C) wire is required for operation.

2. Check battery connections and batteries.

3. Press RESET button with a small pin and hold in for two seconds.

1. Replace Batteries

ENTIRE DISPLAY DIMS

2. Adjust LCD contrast in the Option Menu.

1. Check that the time is set properly to “AM” or “PM”.

2. Check that the thermostat is not in “HOLD” or “Home Today” modes.

3. Check for the correct day setting.

PROGRAM DOES NOT CHANGE

AT YOUR DESIRED SETTING

4. Check any remote sensor readings or weights.

AUTO / FAN DOES NOT TURN ON

FAN RUNS CONTINUOUSLY

1. Move HG/HE selector to opposite position

1. Check fan setting. It may be “ON” or in Programmable Fan mode “PGMON”.

Problem (cont.)

Solution (cont.)

HEATING OR COOLING DOES

NOT GO ON OR OFF

1. Check that the system selector key is in the correct position (“HEAT,” “COOL”

or “AUTO”).

2. The thermostat may be in the AUTO mode. Look for “AUTO” on the LCDdisplay.

If the Heat and Cool program temperatures are close, then the thermostat re-

quires a larger room temperature change before changing from Heat or Cool.

3. There may be as much as a 4 minute delay before the Heat or Cool system turns

On - wait and check. (Compressor protection delay.)

4. Check your circuit breakers and switches to ensure there is power to the system.

5. Replace batteries.

6. Make sure your furnace blower door is closed properly.

7. Check the position of the Heat Pump or Multi-Stage selector switch.

ERRATIC DISPLAY

1. Press the RESET button once with a small pin and hold for two seconds.

The thermostat will need to be re-programmed.

IF UNIT CONTINUES TO OPERATE

IN THE OFF POSITION

1. Replace unit.

THERMOSTAT PERMANENTLY

READS “HI,” “LO,” OR “Error”

AFTER PRESSING RESET BUTTON

1. Replace unit.

If you experience any other problems, call 800-676-7861 from 8 AM to 5 PM Central Time for technical assistance.

41653_model43558.pmd

WIRING DIAGRAMS

HEAT PUMP SYSTEMS

Some terminals may not be used

THERMOSTAT WALLPLATE TERMINALS

Optional Jumper*

Compressor

Stage 2

Fan

Relay

System

Monitor

Reversing

Auxiliary Reversing

Emergency 24V

Compressor

Valve Cool Heat

Valve Heat Heat

Supply Stage 1

Common

NOTE: Common wire connection is REQUIRED.

*Add jumper between W2 and E

on systems without an E wire.

X - No Connection

MULTI-STAGE SYSTEMS

Some terminals may not be used

THERMOSTAT WALLPLATE TERMINALS

Cool

Stage 2

Fan

Relay

System

Monitor

Cool

Damper

Heat

Stage 2

Heat

Damper

24V

Supply

Cool

Heat

Stage 1 Stage 1

Common

NOTE: Common wire connection is REQUIRED.

X - No Connection