41653_model43558.pmd
1
Programmable Heat Pump or
Multi-Stage Auto Season Thermostat
Owner’s Manual
Model 43558
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41653_model43558.pmd
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Table of Contents (continued)
4
Program Options
33
33
PROGRAMMING (continued)
Programmable Fan
2 or 4 Programs Per Day
33
Reviewing Programs
34-35
Power Switch
36
36
OPERATIONS
System Selection Key
Fan Key
37
System Indicator Light
Emergency Heat
37-38
38
Reviewing the Current Temperature Setting
Temporary Manual Override
Permanent Manual Override
Vacation (Programmable) Hold
Auto Season Changeover
Home Today
39
40
41
42
43
44-45
46
Energy Monitor
Filter Monitor
47
5
SPAN Settings
48
49-50
50
OPERATIONS (continued)
SAFETY FEATURES
Auto Recovery
Keyboard Lock
Backlighting (INDIGLO® Night-Light)
51
Remote Sensors
51-52
AC Power Monitor
Low Battery Warning
Error Mode
54
54
55
TROUBLESHOOTING
WIRING DIAGRAMS
Problems & Solutions
Technical Support
56-57
57
Heat Pump Systems
Mulit-Stage Systems
58
59
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Read This Before Installing Thermostat
6
IMPORTANT
COMPRESSOR PROTECTION
Read the entire installation section of this Owner’s Manual
1thoroughly before you begin to install or operate your Cli-
mate Technology Thermostat.
The thermostat provides a 3.5 minute delay after shutting off
5the 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
2thermostat.
You can program your thermostat before installation by in-
3serting 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.
TEMPERATURE RANGE
Your thermostat can be programmed between 45°F and 95°F
6(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
AUTO RECOVERY
Your thermostat is set from the factory to gradually recover
7the room temperature from an energy saving program to
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.
SYSTEM COMPATIBILITY
Your Thermostat is designed to operate these
24-Volt systems:
4
■ 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.
7
OPERATION
BATTERY WARNING
This system operates on your system’s 24 Volt power supply.
8The supply is monitored by the thermostat, and it will stop
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.
Batteries may be used optionally to prevent the loss of your
9thermostat’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.
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.
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Features
8
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.
9
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.
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10
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.
11
Selector Switches (continued)
11
■
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.
HG
HE
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
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41653_model43558.pmd
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12
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
Thermostat
Cover
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
13
Wire Labeling
13
■
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
FUNCTION
LABELS
(HEAT PUMP MODE)
(MULTI-STAGE MODE)
COMMENTS
R
24VAC supply
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.
Y1
Compressor stage 1
Compressor stage 2
DO NOT CONNECT
Auxiliary heating
Cooling stage 1
Cooling stage 2
Heating stage 1
Heating stage 2
Y2
W1
W2
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)
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41653_model43558.pmd
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14
INSTALLATION
TABLE A – TERMINAL DESCRIPTIONS (continued)
TERMINAL
LABELS
FUNCTION
(HEAT PUMP MODE)
FUNCTION
(MULTI-STAGE MODE)
COMMENTS
E
O
B
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.
G
L
Fan
Fan
Activates the system Fan. (Can be Auto, On, or Program controlled)
System monitor
System monitor
Activates System Check LED on the front of thermostat.
(Controlled by the system, not the thermostat.)
C
24VAC common
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)
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)
Remote sensor 2 (common)
Negative (-) Terminal for Remote Sensor #2. Polarity MUST be maintained.
15
TABLE B
15
HEAT PUMP CROSS-REFERENCE CHART
EXAMPLES OF DIFFERENT SYSTEM TERMINALS
CLIMATE
TECHNOLOGY
TERMINALS
BRYANT,
PAYNE
RHEEM-
RUUD
TRANE,
CARRIER
COLEMAN
COMFORTMAKER
WEATHERTRON
YORK
R
LENNOX (1) LENNOX (2)
R
Y1
W2
E
R
Y or Y1
W2
R
Y
R
Y
R
Y
R
Y
R
Y
R
Y
V-VR
M
Y
W2
E
W1
W2
E
W2
E
W
X2
W
W1
E
Y
E
jumper
to W2
jumper
to W2
E
O
B
G
L
O
O
O
O
G
B
O
O
R
F
B
G
L
B
G
L
G
L or F
C
G
G
L
G
X
B
G
L
L or X
C, X, X1
C
X
C, C1, X1
X
C
X
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.
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41653_model43558.pmd
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16
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.)
R
Figure 2
Figure 3
17
Connect Wires and Mount Thermostat Cover to Wallplate
17
■
■
■
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.
R
Y1
Insert
R
■
■
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.)
Y2
G
C
L
O
W2
B
E
R
Y1 W1
Switch on the main power at the panel or furnace.
RS1+ RS1- RS2+ RS2-
RS1+ RS1- RS2+ RS2-
Figure 5
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41653_model43558.pmd
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18
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
■
or
to change weighting between FULL,
1
HALF or OFF.
Remote temperature sensor 1 weighting
option
or
■
to change weighting between FULL, HALF or
2
Reamote-1
Temp
OFF. The factory default is “HALF.” The current temperature measure-
ment from sensor 1 is shown. (Blank if not connected.)
19
Remote temperature sensor 2 weighting
option
or
Remote-2
Temp
■
to change weighting between FULL, HALF or
3
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
■
or
to change the thermostat display between
4
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
5
(continued)
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41653_model43558.pmd
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20
PROGRAMMING
Option Menu (continued)
Stage 1 SPAN selection
Span Stg1
Span Stg2
■
or
to change the SPAN setting to 1, 2, or 3. The
option
6
factory setting is 2. Setting 1 will cause shorter cycle times. Setting 3
will cause longer cycle times.
Stage 2 SPAN selection
■
or
to change the SPAN setting to 1, 2, 3, 4, 5 or 6.
option
7
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
■
or
to change the deadband between 3, 4, 5 or 6°F,
option
8
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.
21
Auto Recovery selection
Recovery
■
or
to enable “YES” or disable “NO” the Auto
option
9
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
■
or
to change the LCD contrast between 0 and 9.
option
10
LCD
Lower numbers lighten the display. Higher numbers darken the display.
The factory setting is 5.
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41653_model43558.pmd
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22
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.
4
Monday
Temp
■ During time and day setting mode, the temperature and program
AM
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.
AM
or
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.
PM
or
23
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.
PM
or
■ Press again to change back to the normal display.
day-time
2
Temp
Saturday
or
AM
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
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41653_model43558.pmd
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24
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
1
2
3
4
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.
25
Personal Program Schedule
25
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
Time
Time
Time
Fri.
Time
Time
Time
Time
Temp
Temp
Temp
Temp
Temp
Temp
Temp
Temp
Sat.
Sun.
Time
Temp
Time
Temp
Time
Temp
Time
Temp
Sat.
Sun.
Time
Temp
Time
Temp
Time
Temp
Time
Temp
Time
Time
Time
Time
Time
Time
Time
Time
Temp
Temp
Temp
Temp
Temp
Temp
Temp
Temp
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41653_model43558.pmd
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26
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).
27
Weekday/Weekend Programming
27
Step 1
■ Slide Power Switch to ON.
2
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
AM
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
1
2
Temp
3
4
Weekdays
■ The Program hour and AM or PM indicator are flashing. Press to
change the hour.
AM
or
System
Fan
Step 4
program
■ Press again to change to the minute position. The current minute
will be flashing.
1
2
Temp
3
4
Weekdays
■ Press to change the minute.
AM
System
or
Fan
(continued)
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41653_model43558.pmd
28
28
PROGRAMMING
Weekday/Weekend Programming (continued)
Step 5
■ Press again to change to the program temperature. The current
temperature will be flashing.
program
1
2
Temp
3
4
Weekdays
■ Press to change the temperature.
AM
or
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
1
2
Temp
3
4
Weekends
■ Repeat steps 3 through 5 to complete the weekend programs.
■ Press at any time to exit the Program Mode.
AM
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.
29
7-Day Programming
29
Step 1
■ Slide Power Switch to ON.
2
Temp
Thursday
on off em
system
AM
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.
1
2
Temp
3
4
Monday
■ Press 2 times to reach the Monday program.
AM
System
Fan
■ The Program hour and AM or PM indicator are flashing. Press to
change the hour.
or
1
2
Temp
3
4
Monday
■ Press again to change to the minute position. The current minute will
be flashing.
program
AM
System
■ Press to change the minute.
Fan
or
(continued)
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30
30
PROGRAMMING
7-Day Programming (continued)
Step 5
■ Press again to change to the program temperature. The current
temperature will be flashing.
program
1
2
Temp
3
4
Monday
■ Press to change the temperature.
AM
or
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.
31
Everyday Programming
31
Step 1
■ Slide Power Switch to ON.
2
Temp
Thursday
on off em
system
AM
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.
program
prog-day
1
2
Temp
3
4
Everyday
■ Press 9 times to reach the Everyday program.
AM
System
Fan
Step 3
Step 4
■ The Program hour and AM or PM indicator are flashing. Press to change
the hour.
or
1
2
Temp
3
4
Everyday
■ Press again to change the minute position. The current minute will
be flashing.
program
AM
System
Fan
■ Press to change the minute.
or
(continued)
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32
32
PROGRAMMING
Everyday Programming (continued)
Step 5
■ Press again to change to the program temperature. The current tem-
perature will be flashing.
program
1
2
Temp
3
4
Everyday
AM
■ Press to change the temperature.
System
Fan
or
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.
33
Program Options
Programmable Fan
fan
33
■ 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.)
1
2
Temp
3
4
Weekdays
AM
“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
1
4
Weekdays
Temp
Program numbers 2 and 3 are turned OFF when 2 programs per
day are selected.
PM
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.
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34
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
1
1
1
2
Temp
3
4
Weekdays
■ Press repeatedly to cycle through the 4 programs.
AM
System
Fan
■ Press to display the Sa - Su programs.
Weekend
Programs
prog-day
program
2
Temp
3
4
Weekends
■ Press repeatedly to cycle through the 4 programs.
AM
System
Fan
Daily and
Everyday
Programs
■ Press to display M - F programs.
program
2
Temp
3
4
Weekdays
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
35
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
1
2
Temp
3
4
Monday
■ Press again to change to Monday’s program.
AM
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.
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36
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
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
System
37
Fan Key
37
Fan
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
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.
2
•
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)
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38
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.
2
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.
39
Reviewing the Current Temperature Setting
39
■ Current time and temperature.
4
Saturday
Temp
■ Thermostat is set to AUTO and the heating system is selected.
PM
System
Fan
■ Press for 1 second or less.
4
Saturday
Set Temp
Temp
or
■ 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.
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40
40
OPERATION
Temporary Manual Override
To temporarily change the current set temperature without affecting your program:
■ Press
or
and hold for about 1 second to enter
Manual Override mode. Display will flash.
■ Press
or
to change to your desired new temperature.
3
Set Temp
Temp
■ Press to return to normal mode, or wait 5 seconds for it to return automatically.
ret-clear
■ The current program number will flash to signify the Temporary Override.
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.
41
Permanent Manual Override
41
To hold your manual override for an extended period of time:
at
i
o
c
■ Press to make the current room temperature the HOLD tempera-
ture. HOLD will alternate on the display with the day and any
other messages.
n
a
v
Hold
hold
Temp
AM
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.
or
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.
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42
42
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.
at
i
o
c
n
a
v
■ 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
or
■ 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.
43
Auto Season Changeover
43
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.
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44
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.
h
o
■ Press to enter the Home Today override. The highest program tempera-
m
Home
e
ture for today will be selected from your programs in Heat mode and
Temp
t
o
become the set temperature. (In Cool mode, Home Today will select the
lowest program temperature for today to be the set temperature.)
d
y a
PM
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.
h
o
■ 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.
m
e
t
o
d
y a
45
■ 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.
45
at
i
o
c
■ 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.
n
a
v
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.
h
o
m
■ You may also press the Home Today key while in Temporary Manual
e
Override. The operation is the same as the previous point above.
t
o
d
y a
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46
46
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
n
o
y
m
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.
g
r e
Hr
Min
n e
■ 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
47
Filter Monitor
47
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
4
Filter
Temp
clean or change your system’s filter. “FILTER” will continue to display
until the counter is set back to zero.
PM
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.
Hr
Min
The display will blink, and the counter will be reset to zero.
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48
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.
49
Auto Recovery
49
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.
2
Temp
Recovery
PM
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)
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50
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.
1
Key Lock
Temp
and
AM
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.
51
Backlighting (INDIGLO® Night-Light)
51
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)
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52
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:
2
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.
AM
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
2
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.
AM
System
Fan
53
Review Remote Sensor Temperatures:
■ Press to see the currently measured temperature for each sensor, along
with its weight.
option
■ Example: Standard display
2
Temp
Thursday
AM
System
Fan
Local Sensor
Local
Remote Sensor 1
Remote Sensor 2
Remote-1
Remote-2
Temp
Temp
Temp
option
option
The system is controlling around the weighted average of 68°F, based on readings of 70°F, 67°F and 65°F.
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54
54
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.
3
Temp
No AC Pwr
■ Without AC power, the following functions are disabled:
- The system is turned off.
PM
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.
3
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
PM
System
Fan
55
Error Mode
55
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.
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56
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”.
57
Problem (cont.)
Solution (cont.)
57
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.
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41653_model43558.pmd
58
58
WIRING DIAGRAMS
HEAT PUMP SYSTEMS
Some terminals may not be used
THERMOSTAT WALLPLATE TERMINALS
Optional Jumper*
Y2
G
C
L
O
W2
B
E
R
Y1
W1
X
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
59
59
MULTI-STAGE SYSTEMS
Some terminals may not be used
THERMOSTAT WALLPLATE TERMINALS
Y2
G
C
L
O
W2
B
E
R
Y1
W1
X
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
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41653_model43558.pmd
60
Climate Technology Corp.
2500 FRISCO AVENUE
MEMPHIS, TN 38114
A Hunter Fan company
© 2004, Climate Technology Corp Form No. 41653-01, 01/27/04
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