Your new Hunter 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
Hunter product!
Please read this manual for complete instructions on installing
and operating your thermostat.
If you require further assistance, call Hunter Support at 888830-1326 from 8 AM to 5 PM Central Time.
Model Information:
Model Number ___________________________________________
44760
Serial Number____________________________________________
Date Purchased __________________________________________
Where Purchased _________________________________________
2
3
Table of Contents
INTRODUCTION
INSTALLATION
PROGRAMMING
3
Read This Before Installing Thermostat6
Features8
What You Need10
Remove Old Thermostat10
Wire Labeling11
Mount Wallplate and Thermostat14
Connect Wires and Mount Thermostat to Wallplate15
Option Menu16
Setting Time and Day18
12 Hr. / 24 Hr. Time Format19
Programming Introduction20
Personal Program Schedule21
Programming23
Power Switch32
System Selection Key32
Fan Key33
System Indicator Light34
Emergency Heat35
Reviewing the Current Temperature Setting35
Temporary Manual Override36
Permanent Manual Override37
Vacation (Programmable) Hold38
Auto Season Changeover39
Home Today40
Energy Monitor42
Filter Monitor43
SPAN Settings44
4
Programmable Fan30
5
OPERATIONS
SAFETY FEATURES
TROUBLESHOOTING
WIRING DIAGRAM
(continued)
Auto Recovery45
Keyboard Lock46
Backlighting
AC Power Monitor48
Low Battery Warning48
Error Mode49
Problems & Solution50
Technical Support51
Heat Pump Systems52
(INDIGLO® Night-Light)
47
41652_model44760_web.pmd
6
Read This Before Installing Thermostat
IMPORTANT
Read the entire installation section of this Owner’s Manual
1
thoroughly before you begin to install or operate your
Hunter Thermostat.
Remove the Mylar label from the LCD display window.
INSTALLATION
All installation is normally performed at your
2
thermostat.
ARMCHAIR PROGRAMMING
You can program your thermostat before installation by in-
3
serting the batteries and following the instructions starting
on page 16. 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 Hunter Thermostat.
SYSTEM COMPATIBILITY
Your Thermostat is designed to operate these
4
24-Volt systems:
■ Multi-stage heat pumps with auxiliary heat
■ Single-stage heat pumps
This thermostat will not control 120/240 Volt systems or
millivolt systems.
COMPRESSOR PROTECTION
The thermostat provides a 3.5 minute delay after shutting off
5
the heating or cooling system before it can be restarted.
This feature will prevent damage to your compressor caused
by rapid cycling.
6
7
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).
AUTO RECOVERY
Your thermostat is set from the factory to gradually recover
7
the 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 16.
OPERATION
This system operates on your system’s 24 Volt power supply.
8
The 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.
The INDIGLO® Night-Light will not function when
NOTE:
AC power is lost.
BATTERY WARNING
Fresh alkaline batteries will provide over one year of memory
9
backup and clock operation. 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.
The default system selection at power-on is HEAT.
NOTE:
Batteries are recommended to prevent an undesired system change due to a power outage.
41652_model44760_web.pmd
8
Features
INDIGLO® Night-Light
activated by pressing any key.
Energy Monitor:
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.
Reset: Press with a
paper clip to reset the
thermostat and return
to power-up settings.
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.
Temperature Keys:
Keys for raising or
lowering temperature
settings.
Power Switch:
Select ON, Positive
OFF, or Emergency
Heat.
Soft-touch
programming
keypad, see details
below.
8
9
System Indicator LEDs: Show status
of Stage 1, Emergency, Stage 2, and
Check System.
System Key: Use to select system.
Select Heat, Cool or Auto.
Day/Time Key: Used for entering
the Clock setting mode. Use with
the Up and Down keys to set the
time and day.
Filter: Displays the filter usage
counter in hours and minutes.
Vacation / Hold: Enters permanent and vacation
(Programmable) HOLD modes.
®
As an ENERGY STAR
thermostat meets the ENERGY STAR
Partner, Hunter Fan Company has determined that this programmable
®
guidelines for energy efficiency.
Fan Key: Used to select fan mode.
Select Auto, ON, or Program
Controlled.
Option Key: Enters the option
menu.
Program Key: Enters Program
Mode for reviewing or chaning
Weekday, Weekend, Daily or
Everyday programs.
Program-Day Key: Selects the day
or days to review or change in
Program Mode.
Return-Clear Key: Returns to
normal display mode. Also clears
Filter and Energy counters, and
HOLD modes.
41652_model44760_web.pmd
10
INSTALLATION
What You Need
This thermostat includes two #8 slotted screws and two wall anchors for mounting. To install your thermostat, you should have
the following tools and materials.
Remove Old Thermostat
CAUTION:
mostat before reading the instructions carefully. WIRES
MUST BE LABELED PRIOR TO REMOVAL.
■
■
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).
Do not remove any wiring from existing ther-
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 thermostats will have screws or other locking devices that must
first be removed. Once wall mounting plate is exposed,
for wires.
look
■
Slotted Screwdriver(s)■Electric drill and 3/16" bit
■
Phillips Screwdriver
■
Hammer
TYPICAL HOME THERMOSTATS
Wall Mounting PlateThermostatCover
Wall Mounting PlateThermostatCover
■
Two 1.5 V (AA) size alkaline batteries
Figure 1
10
11
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 on the next page.
■
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
SHOWN IN TABLE A and B ON PAGES 12-13. (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.
■
After labeling wires, disconnect them from the existing thermostat 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.
(continued)
11
41652_model44760_web.pmd
12
INSTALLATION
TABLE A – TERMINAL DESCRIPTIONS
TERMINALFUNCTION
LABELS(HEAT PUMP)COMMENTS
R24V AC supplyHot wire of 24VAC transformer. Powers the thermostat & system.
Y1Compressor stage 1Activates the 1st stage compressor. (Heat or Cool for Heat Pumps)
W2Auxiliary heatingActivates the 2nd stage (auxiliary) heating when required.
EEmergency heating
OReversing valveActivates reversing valve in COOL mode. ALWAYS ON in COOL MODE.
(cooling mode)
BReversing valveActivates reversing valve in HEAT mode. ALWAYS ON in HEAT MODE.
(heating mode)
GFanActivates the system Fan. (Can be Auto, On, or Program controlled)
LSystem monitorActivates System Check LED on the front of thermostat.
C24V AC commonCommon wire of 24V AC transformer. REQUIRED for thermostat operation.
Activates Emergency heating ONLY when the System Switch is in Emergency (em) Mode.
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 Diagram on page 52.
Note: W2 wiresNote: T wire
no connectionno connection
to W2to W2
TABLE B
EXAMPLES OF DIFFERENT SYSTEM TERMINALS
13
41652_model44760_web.pmd
G C L O W2 B E R Y1
G C L O W2 B E R Y1
14
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.)
■
Position wallplate on wall and pull existing wires through
large opening. Then level for appearance. Mark holes for plastic anchors provided if your existing holes do not line up with
those on the Hunter wallplate.
Figure 2Figure 3
■
Drill holes with 3/16" bit and gently tap anchors into the
holes until flush with wall.
■
Reposition wallplate to wall, pulling wires through large
opening. Insert mounting screws provided into wall anchor
and tighten. (See Figure 3.)
C
O
F
G
W2
Y1
R
14
15
Connect Wires and Mount Thermostat 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.
■
Hold the wires in each terminal and tighten the terminal
screws securely, otherwise a loose wire could cause operational problems with your system or thermostat.
■
Push excess wire back into hole to prevent interference with
mounting of the thermostat.
■
Make sure the Power Switch is set to OFF.
■
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:
mostat onto the wallplate, as the terminal pins may be
damaged. If it does not snap properly, the thermostat
may not work.
■
Switch on the main power at the panel or furnace.
)
Do not force the ther-
Figure 4
G C L O W2 B E R Y1
RY1
R
Figure 5
15
Insert
41652_model44760_web.pmd
16
PROGRAMMING
Option Menu
Your thermostat has many settings that can be adjusted to fit your system and preferences.
■
option
ret-clear
Fahrenheit or Celsius (F°/C°) selection
option
12 Hr or 24 Hr. Clock selection
option
Press to enter the Option Menu and to change to the next option selection.
■
Press at any time to return to normal mode.
■
1
■
2
or to change the thermostat display between
Fahrenheit and Celsius.
or to change the time format display between
12 hour (AM / PM) and 24 hour (military).
16
Temp
Clock
17
Stage 1 SPAN selection
option
3
Auto Recovery selection
option
4
system
Auto Recovery is one of the ENERGY STAR® features of this thermostat. Refer to the Auto Recovery section on
NOTE:
pages 45-46 for more information.
LCD Contrast adjustment
option
5
■
■ or to enable “YES” or disable “NO” the Auto
■ To change between Heat or Cool recovery modes.
■ or to change the LCD contrast between 0 and 9.
or to change the SPAN setting to 1, 2, or 3. The
factory setting is 2. Setting 1 will cause shorter cycle times. Setting 3
will cause longer cycle times.
Recovery Mode. The factory setting is “YES.”
Lower numbers lighten the display. Higher numbers darken the display.
The factory setting is 5.
Span Stg1
Recovery
System
LCD
41652_model44760_web.pmd
18
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.
■ During time and day setting mode, the temperature and program
displays will go blank.
■ Example: Set the Thermostat to the current time of 2:16 PM on Saturday.
Refer to the Steps below.
Step 1■ Press to enter time and day setting mode. The current hour and the
Step 2■ Press again to change from hour setting to minute setting. The current
day-time
or
day-time
or
AM / PM indicator will be flashing.
■ 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.
minute will be flashing.
■ Press to change the Minute up or down to the current minute.
Monday
AM
System
Monday
AM
Monday
PM
18
4
Tem p
Fan
19
Step 3■ Press again to change from minute setting to day setting. The current
Step 4■ Press again to change back to the normal display.
NOTE:
day-time
or
day-time
or
ret-clear
You may press
day will be flashing.
■ Press to change the Day up or down to the current day.
ret-clear
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)
time, press
at any time while the Hour, Minute,
option
or Day is flashing to toggle between the 12 hour and 24 hour
formats. The AM / PM indicator will not be displayed in 24
hour mode. Both the current time and all programs will automatically change to the selected format. The time format may
also be changed in the Option Menu.
Saturday
PM
Saturday
AM
System
2
Tem p
Fan
20
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 during summer you can reduce your fuel bill up to 25%.
Your thermostat is capable of holding up to 4 separate programs
for each day of the week.
20
You can program weekdays as a group, weekends as a group, all
41652_model44760_web.pmd
22
PROGRAMMING
Personal Program Schedule (continued)
Cooling
DayProg. 1Prog. 2Prog. 3Prog. 4
Mon.TimeTempTimeTempTimeTempTimeTemp
Tues.TimeTempTimeTempTimeTempTimeTemp
Wed.TimeTempTimeTempTimeTempTimeTemp
Thurs. TimeTempTimeTempTimeTempTimeTemp
Fri.TimeTempTimeTempTimeTempTimeTemp
Sat.TimeTempTimeTempTimeTempTimeTemp
Sun.TimeTempTimeTempTimeTempTimeTemp
22
23
Programming
■ Your thermostat can be programmed for weekdays and week-
ends, have unique programs for all 7 days, or the same program for everyday. Use Weekday/Weekend Programming on
page 24, 7-day Programming on page 26, or Everyday Programming on page 28 to enter or revise programs to match
your Personal Program Schedule.
■ 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.
1) The program time can be set in 10 minute incre-
NOTE:
ments, and remains the same for both Heat and
Cool programs.
2) The program temperature can be set in incre-
ments of 1°F (1°C).
23
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 programming.
5) After 15 seconds without a key press, the thermostat will return to normal display mode.
6) When setting the program time, note the AM /
PM indicator.
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 comfortable at the program time.
41652_model44760_web.pmd
24
PROGRAMMING
Weekday/Weekend Programming
Step 1■ Slide Power Switch to ON.
on off em
If the power switch is in the OFF position, the last system selected will
NOTE:
be programmed.
Step 2■ Press to enter program mode. Weekdays are displayed and program
program
Step 3■ The Program hour and AM or PM indicator are flashing. Press to
Step 4■ Press again to change to the minute position. The current minute
program
■ Press to select HEAT or COOL to program the corresponding system.
(AUTO may be selected, but does not affect the programming steps.)
1 is flashing.
or
change the hour.
will be flashing.
■ Press to change the minute.
or
Thursday
AM
System
Weekdays
AM
System
Weekdays
AM
System
Fan
Fan
Fan
2
Tem p
1 2 3 4
Tem p
1 2 3 4
Temp
24
25
Step 5■ Press again to change to the program temperature. The current
Step 6■ Press again to move to the next program number.
Step 7■ Press to change to Weekend programs.
Step 8■ Change to the other system, and repeat steps 2 through 7.
program
or
program
prog-day
ret-clear
system
temperature will be flashing.
■ Press to change the temperature.
■ Repeat Steps 3 through 5 to change the remaining Weekday programs.
■ Repeat steps 3 through 5 to complete the weekend programs.
■ Press at any time to exit the Program Mode.
■ After 15 seconds, the thermostat will return to normal mode
automatically.
Weekdays
AM
System
Weekends
AM
System
Fan
Fan
1 2 3 4
Temp
1 2 3 4
Tem p
41652_model44760_web.pmd
26
PROGRAMMING
7-Day Programming
Step 1■ Slide Power Switch to ON.
on off em
system
Step 2■ Press to enter program mode, display shows weekday programs.
program
prog-day
Step 3■ The Program hour and AM or PM indicator are flashing. Press
Step 4■ Press again to change to the minute position. The current minute will
program
■ Press to select HEAT or COOL to program the corresponding system.
(Auto may be selected, but does not affect the programming steps)
■ Press 2 times to reach the Monday program.
or to change the hour.
be flashing.
■ Press
or to change the minute.
Thursday
AM
System
Monday
AM
System
Monday
AM
System
Fan
Fan
Fan
2
Tem p
1 2 3 4
Temp
1 2 3 4
Temp
26
27
Step 5■ Press again to change to the program temperature. The current
Step 6■ Press to move to programs 2, 3 and 4.
Step 7■ Press to change to the next day’s programs.
Step 8■ When finished, press to return to normal mode.
Step 9■ Change to the other system and repeat steps 2 through 8 above.
program
program
prog-day
ret-clear
system
temperature will be flashing.
■ Press
or to change the temperature.
■ Repeat Steps 3 through 5 to complete the programs for Monday.
■ 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.
■ After 15 seconds, the thermostat will return to normal mode automatically.
Monday
AM
System
Fan
1 2 3 4
Temp
41652_model44760_web.pmd
28
PROGRAMMING
Everyday Programming
Step 1■ Slide Power Switch to ON.
on off em
system
Step 2■ Press to enter program mode, display shows weekday programs.
program
prog-day
Step 3■ The Program hour and AM or PM indicator are flashing. Press to
■ Press to select HEAT or COOL to program the corresponding system.
(Auto may be selected, but does not affect the programming steps)
■ Press 9 times to reach the Everyday program.
or
change the hour.
Thursday
AM
System
Everyday
AM
System
Fan
Fan
2
Tem p
1 2 3 4
Temp
28
29
Step 4■ Press again to change the minute position. The current minute will
Step 5■ Press again to change to the program temperature. The current tem-
Step 6■ Press again to move the next program number.
Step 7■ Change to the other system and repeat steps 2 through 6.
program
or
program
or
program
ret-clear
system
be flashing.
■ Press to change the minute.
perature will be flashing.
■ Press to change the temperature.
■ Repeat Steps 3 through 5 to change the remaining programs.
■ Press at any time to exit the Program Mode.
■ After 15 seconds, the thermostat will return to Normal
mode automatically.
Everyday
AM
System
Everyday
AM
System
Fan
Fan
1 2 3 4
Temp
1 2 3 4
Temp
41652_model44760_web.pmd
30
PROGRAMMING
Program Options
Programmable Fan
■ Any time during programming, this will change the fan display between
fan
Reviewing Programs
You may want to review the programs to confirm that the settings are compatible with your lifestyle.
Weekday
Programs
program
“A UTO” and “ON” for the selected system and Program number. (Heat
and Cool can be set separately.)
“A UTO” = Fan control runs when the system is ON
“ON” = Fan control runs continuously
Fan must be set to “PGM” for the Programmable Fan to be activated.
NOTE:
■ Press to display M - F programs.
■ Press repeatedly to cycle through the 4 programs.
Weekdays
AM
System
Weekdays
AM
System
Fan
Fan
1 2 3 4
Temp
1 2 3 4
Temp
30
31
Daily and
Everyday
Programs
program
prog-day
program
■ Press to display the Sa - Su programs.
■ Press repeatedly to cycle through the 4 programs.
■ Press to display M - F programs.
NOTE:
Time or Temperature display will be blank when at least
one weekday program is different. (All programs will de displayed if programmed in Everyday mode.)
■ Press to change to Sa - Su. Again, if part of the display is blank, one of
the weekend programs is different.
Weekends
AM
System
Weekdays
SystemFan
■ Press again to change to Monday’s program.
■ Continue pressing to cycle through each day, or to reach the Everyday
programs.
■ Press repeatedly to cycle through the 4 programs.
■ Press to return to normal mode.
■ After 15 seconds, the thermostat will return to normal mode automatically.
Programs take affect as soon as the thermostat returns to normal mode.
NOTE:
If you are armchair programming the thermostat, slide the system selector to the OFF position before
mounting the thermostat to the wallplate.
Fan
Temp
1 2 3 4
Temp
41652_model44760_web.pmd
32
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 positively disconnected from the system.
Anytime you install or remove the thermostat from the wallplate, slide the Power
NOTE:
Switch to the OFF position to prevent the possibility of a rapid system On-Off.
System Selection Key
system
■ Press to select the desired system.
■ When Auto is selected, the system will change between Heat and Cool
automatically. Refer to the Auto Season Changeover section on page 39.
The default system selection at power-on or after a reset
NOTE:
is HEAT. Therefore it is recommended that 2 AAA batteries be
used for backup during power outages.
32
on off em
System
System
System
System
33
Fan Key
■ Press to set the fan operation.
fan
■ AUTO: the fan will turn on with the system.
ON: the fan will run continuously.
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 30.
The fan must be set to “PGM” for the fan’s program set-
NOTE:
tings to take effect.
33
Fan
Fan
Fan
Fan
34
OPERATIONOPERATION
34
363638
41652_model44760_web.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 thermostat will return to normal program operation. This feature allows you to return home to your normal comfort setpoint temperatures.
t
a
i
o
c
n
a
v
hold
day-time
To end Vacation Hold:
ret-clear
The Auto Season Changeover feature will not operate while the thermostat is in Vacation (Programmable) HOLD.
NOTE:
Refer to the Auto Season changeover feature on page 39 for more information.
■ 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.
■ Use to set the Vacation Hold temperature.
or
■ Press to set the Vacation Hold counter to the number of days you will be
away from home.
■ “Vacation” will alternate on the display with the day and any other
messages.
■ Press to return to the current program. The flashing Vacation display will be canceled.
Vacation
Set Temp
Day
System
Temp
Fan
38
39
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 programmed 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.
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-
39
play. “AUTO” will return when these holds are cleared. Auto Season Changeover will still function in Home Today mode, as this is
a comfort setting.
For example, you may have the following temperatures programmed at a given time:
If the room temperature rises above 78°F, then the thermostat
will automatically change to cool mode and turn on the air
conditioner.
Likewise, the thermostat will
and turn on heat when the room temperature falls below 68°F.
Heat Set Temp = 68°F
Cool Set Temp = 78°F
automatically change to heat mode
41652_model44760_web.pmd
40
OPERATION
Home Today
This Hunter 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
e
ture for today will be selected from your programs in Heat mode and
t
o
become the set temperature. (In Cool mode, Home Today will select the
d
a
y
lowest program temperature for today to be the set temperature.)
■ “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 Today 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
m
e
program of the next day by pressing the key again after the start time of
t
o
the third program.
d
a
y
Home
PM
SystemFan
Temp
(continued)
40
41
v
a
a
c
hold
■ If the system is changed between Heat and Cool modes (either manually
or by Auto Season Changeover) during the “Home Today” override period, the setpoint temperature will be automatically updated. It will automatically change from the highest heat program setpoint to the lowest cool program setpoint, or from the lowest cool program setpoint to
t
the highest heat program setpoint.
i
o
n
■ 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.
■ You can manually change the setpoint temperature while in Home Today
mode. Refer to the Temporary Manual Override instructions on page 36.
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-
h
tween heating and cooling.
o
■ You may also press the Home Today key while in Temporary Manual
m
e
Override. The operation is the same as the previous point above.
t
o
d
a
y
41652_model44760_web.pmd
42
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
r
o
■ To review energy usage, press to cycle through Today, Yesterday, [num-
t
i
n
o
m
y
g
r
e
n
e
ret-clear
ber] Days, Last 30 days, and Total. Press again to return to normal mode,
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.
■ 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.
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 tables on pages 21-22.
Today
HrMin
42
43
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 energy efficiency, change or clean your filter regularly.
filter
ret-clear
■ 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
clean or change your system’s filter. “FILTER” will continue to display
until the counter is set back to zero.
■ 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.
In this example, the counter is at 410 Hours, 26 minutes.
■ To reset the Filter Monitor counter, hold for 3 seconds.
The display will blink, and the counter will be reset to zero.
Filter
PM
SystemFan
Filter
Tem p
HrMin
43
4
41652_model44760_web.pmd
44
OPERATION
SPAN Settings
STAGE 1
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 temperature under most all conditions. However, if you find your system 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 17.
Span = 1. This decreases the cycle time by causing your
Span = 3. This increases the cycle time by causing your
system to run shorter.
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.
44
45
Auto Recovery
Hunter’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.
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.
For example, in Heat mode, you could have the following
programs:
Program #4 (Overnight)Program #1 (Morning)
Set Temp = 60°FSet Temp = 68°F
Time = 10PMTime = 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.
■ When the thermostat is
in Auto Recovery mode,
the display will alternate
“RECOVERY” with the
day, and the program
indicator will flash.
Details of Auto Recovery Operation:
■ Auto Recovery can be disabled by selecting “NO” in the Op-
tion Menu. Refer to page 17.
■ 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).
Recovery
PM
SystemFan
2
Tem p
45
41652_model44760_web.pmd
46
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.
■ 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.
and
The keyboard is locked when KEY LOCK appears on the display.
■ 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.
■ If the system changes between heat and cool (automatically
or manually) then the thermostat will recalculate Auto Recovery again. Setpoint temperature will be changed to the opposite 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.
Key Lock
AM
System
46
1
Temp
Fan
47
Backlighting (INDIGLO® Night-Light)
Your thermostat has an electroluminescent lamp that backlights
the display for easy viewing in the dark.
When any key is pressed the display is illuminated.
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-
erate several keys. The backlight will decrease in brightness before shutting off.
The backlight is powered by the 24V AC supply. It
NOTE:
will not operate when there is an AC power interruption
or if the thermostat is removed from the wallplate.
47
48
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.
■ Without AC power, the following functions are disabled:
- The system is turned off.
- 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
batteries are detected to be weak, the low battery warning is
No AC Pwr
PM
SystemFan
Low Batt
PM
SystemFan
Tem p
Tem p
48
3
3
41652_model44760_web.pmd
50
TROUBLESHOOTING
SCRAMBLED OR DOUBLE DISPLAY
(numbers over numbers)
NO DISPLAY
ENTIRE DISPLAY DIMS
PROGRAM DOES NOT CHANGE
AT YOUR DESIRED SETTING
AUTO / FAN DOES NOT TURN ON
FAN RUNS CONTINUOUSLY
50
SolutionProblem
1. Remove clear Mylar sticker
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
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.
4. Check any remote sensor readings or weights.
1. Move HG/HE selector to opposite position
1. Check fan setting. It may be “ON” or in Programmable Fan mode “PGMON”.
51
Solution (cont.)Problem (cont.)
HEATING OR COOLING DOES
NOT GO ON OR OFF
ERRATIC DISPLAY
IF UNIT CONTINUES TO OPERATE
IN THE OFF POSITION
THERMOSTAT PERMANENTLY
READS “HI,” “LO,” OR “Error”
AFTER PRESSING RESET BUTTON
If you experience any other problems, call 888-830-1326 from 8 AM to 5 PM Central Time for technical assistance.
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 LCD display.
If the Heat and Cool program temperatures are close, then the thermostat requires 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.
1. Press the RESET button once with a small pin and hold for two seconds.
The thermostat will need to be re-programmed.
1. Replace unit.
1. Replace unit.
51
41652_model44760_web.pmd
52
WIRING DIAGRAMS
HEAT PUMP SYSTEMS
GCLO
Fan
Relay
Common
Some terminals may not be used
THERMOSTAT WALLPLATE TERMINALS
Optional Jumper*
W2
System
Monitor
Reversing
Valve Cool
NOTE:
*Add jumper between W2 and E on systems without an E wire.