®
SINCE
1 8 8 6
44300/44350
OwnerÕs Manual
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We are pleased you have selected one of our broad line of home comfort products. Our
products are manufactured to high quality standards and are designed for years of service.
We hope you will be satisfied and thank you for buying a Hunter product.
Table Of Contents
Installation
Features
6
8
Remove Old Thermostat
Labeling Wires
10
14
14
System Selector Switches
Connecting Wires and Mounting Thermostat
Operation
Programming/Setting Clock
Personal Program Schedule
Reviewing Program Settings
Manual Overide
16
20
26
27
30
30
31
32
34
Temperature Span
Backlighting
Filter Monitor
Trouble Shooting Guide
Typical Wiring Diagrams
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Read This Before Installing Thermostat
IMPORTANT
This Hunter Thermostat will not control multi-
Read the entire installation section of this
1Owner’s Manual thoroughly before you begin
to install or operate your Hunter Thermostat.
stage heating or cooling systems, 110/220 V
systems, or 3 wire zone systems.
COMPRESSOR PROTECTION
• Remove the mylar label from the display
window.
The thermostat provides a 4-minute delay
5after shutting off the compressor before it
can be restarted. This feature will prevent
damage to your air conditioner compressor
caused by rapid cycling. It does not provide a
delay when there are power outages.
INSTALLATION
All installation is normally performed at your
2thermostat.
PROGRAMMING
TEMPERATURE RANGE
You can practice programming before
3installing your thermostat by inserting and
connecting the batteries and following the
instructions on page 14. 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.
Your thermostat can be programmed between
640°F and 95°F (5°C and 35°C). However, it will
display room temperatures from 32°F to 99°F (0°C
and 37°C).
POWER FAILURE
Whenever the main power is interrupted or
7fails, the battery power retains the programs
and current time.
OPERATION
Your Hunter Thermostat is designed to
4operate with most gas, oil, electric or 2-wire
hot water heating, and air conditioning systems
that have 24-volt or millivolt control.
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BATTERY WARNING
CAUTION: The batteries are the only source
of power used to operate your system. If you
do not replace the batteries, the display will
dim and your heating and cooling system will
stop operation.
When the batteries are low, the “LOW BATT”
8indicator on the display will flash. When this
happens, install new batteries immediately.
Once the “LOW BATT” indicator appears, the
thermostat will continue to operate for
approximately 30 days. (Only alkaline batteries
should be used in your thermostat.
Rechargeable batteries have different properties
which may cause the thermostat to not operate
properly. Do not use old batteries.) The batteries
should last one year.
NOTE: If you plan to be away from the
premises over 30 days, we recommend that
you replace the old batteries with new
alkaline batteries prior to leaving.
How This Thermostat Works…And Saves You Money
This thermostat is designed to optimize the use of your heating and cooling equipment. It
does this by matching your comfort (the temperatures in your home) to your schedule.
An example:
6:00 am – You wake up. Program 1 has the heat set to 70° (21°C).
7:30 am – You leave for work. The second program turns the heat back to 62° (17°C)
while you are away.
5:00 pm – You come home. The third program has already warmed your house back
to 70° (21°C).
10:00 pm – You go to bed. A half hour later, program 4 turns the heat back to 64° (18°C)
to save energy while you are under the blankets.
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Features
6-7
ݗ ݚݙݘ M T W TH F SA SU
HEAT COOL
c
Display shows time, day, temperature, program number,
hold, usage and low battery indicator.
AM
PM
:
88 88 88
FILTER LO BAT
SET TEMP HOLD TEMP
Individual
Display backlight for viewing in the dark.
(Feature found only on certain models.)
pushbuttons for
raising or lowering
temperature settings.
Reset button for
resetting computer back
to 12:00 A.M. and
clearing all programs.
LIGHT
Manual switch for
turning on heating and
cooling system.
Manual switch for
automatic or continuous
fan operation.
Soft touch programming
buttons (see below)
Battery door for easy access
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For entering minute of day.
For entering day of week.
For entering hour
of day.
Reviews filter
usage in
HOUR
MIN
DAY
hours and
minutes. Also
resets filter
counter to
zero.
For reviewing
and changing
weekday or
weekend
AUTO
PROGRAM
PROG
FILTER
RETURN
programs
PROG
DAY
12/24 HRS
Picks the
day/days for
programs
Changes the clock
into 12 or 24 hour
(military) mode.
(Model 44300)
Returns
display to
current
time and
temperature.
Automatically
programs
thermostat for
weekday and
weekend
HOLD/CLEAR button.
(Model 44350)
program
settings.
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Installation
8-9
What You Need
This thermostat comes with two #8 slotted screws and two wall anchors for mounting. To
install your unit, you should have the following tools and materials.
■ Slotted screwdriver
■ Hammer
■ Electric drill and 3/16" bit
■ Two 1.5V (AA) Size Alkaline batteries
Remove Old Thermostat
CAUTION: Do not remove any wiring from existing thermostat before reading the
instructions carefully. Wires must be labeled prior to removal.
■ IMPORTANT! Turn off the power to the furnace at the main power panel or at the furnace.
■ Remove existing thermostat cover and thermostat. See Figure 1. Some thermostats will have
screws or other locking devices that must first be removed. Once wall mounting plate is
exposed, look for wires.
■ 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).
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TYPICAL HOME THERMOSTATS
FIGURE 1
Wall Mounting Plate
Thermostat
Cover
Wall Mounting Plate
Thermostat
Cover
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Installation
Label Wires
10-11
■ 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 page 11.
■ The number of wires in your system can be as few as two (for heat only 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.
■ There is often no terminal marking on the existing thermostat of two wire, heat only systems.
Do not worry, just connect either of the wires to the RH terminal, then connect the other wire
to the W terminal to complete the circuit.
■ IMPORTANT! BEFORE DISCONNECTING ANY WIRES, APPLY THE SELF-ADHESIVE LABELS
PROVIDED TO THE WIRE AS SHOWN IN TABLE A ON PAGE 11. (For example, attach the
label marked W to the wire which 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.
Y
G
W
RH
RC
■ 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.
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Wire Labeling
If the code letter on your
existing thermostat is
and connect to thermostat
Terminal shown
then mark wire
with label shown
RH, R,
VR or 4
24 Volt
This table will help you
match the labels to the
wires so you can attach
them to your Hunter
Thermostat.
RH
RED
RC, VC
24 Volt Cool
RC
RC
BLUE
G or F
Fan
G
NOTE: Follow the labels
when connecting wires
since many installations
do not follow color
GREEN
Y, C or M
(See Note)
coding of wires.
Y
Air Conditioning
YELLOW
W or H
Heating
W
WHITE
TABLE A
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Installation
12-13
Wire Labeling
NOTE: If your thermostat has one wire marked R or RH (4-wire system), then leave
the jumper wire between the RH and RC terminals. Otherwise, if you have separate
RH and RC wires (5-wire system), then remove the jumper wire between the RH and
RC terminals.
NOTE: Do not connect a “Common” wire (sometimes labelled “C”) to any terminal on
this thermostat. Tape up the wire and do not use. This wire provides electricity to non-
battery powered thermostats.
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Mount Wallplate and Thermostat
Snap open the wallplate from your thermostat by pressing the release tab on the bottom of
the thermostat.
Position wallplate on wall and pull existing wires through large opening. Then level for
appearance. Mark holes for plastic anchors provided if existing holes do not line up with
Hunter Thermostat holes.
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 2.)
Figure 2
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Installation
14-15
Selector Switches
The heating system selector and the F°/C° selector switches are located on the Printed
Circuit Board.
■ Heating system selector
The heating system selector is a switch on the Printed Circuit Board on the inside of the
thermostat. The switch is at “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. Leave the switch in the “HG” position. If the fan does not come on when the
thermostat calls for heat, change the switch position to “HE.”
The system selector has no effect in the cooling mode.
NOTE: “HG” position is for gas and most other systems. “HE” position is for certain
electric systems having a fan relay.
■ F°/C° selector (Fahrenheit/Centigrade)
Your thermostat is set for F° mode from the factory. In order to
HE
HG
change to C° mode, slide the switch to C° and press reset
button on front of the thermostat with a paper clip. The reset
button is located near the display.
C
F
NOTE: Unless reset button is pressed, the thermostat will
not change the mode.
Connect Wires and Mount Thermostat Cover to Wall Plate
■ Match and connect the labeled wires to the appropriate coded terminal screws on the
mounting plate. (See Figure 3, 4.) Ignore any wires which may be present, but which were
not connected to the old thermostat.
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■ Be sure to 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 cover.
■ Make sure the Function Switch is set at OFF, and the FAN-AUTO Switch is in AUTO.
■ Insert the bottom tab on the thermostat body into the slot at the bottom of the wallplate.
Press top of the thermostat body to snap it into the wallplate. (NOTE: Do not force the
thermostat onto the wallplate, as the terminal pins may be damaged. If it does not
snap properly, the thermostat may not work.)
■ Insert the two AA size batteries, observing the
polarity marked on the unit.
■ Switch on the main power. Press the reset button.
(See Figure 5.)
■ The LCD display indicates the current room
temperature of your house. If it shows random
numbers or partial digits, press the reset button
once again.
■ The installation is now complete. Continue reading
Owner’s Manual for complete operating instructions.
RH
G
W
Y
RC RH
FIGURE 4
FIGURE 3
FIGURE 5
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Programming
16-17
Remove mylar label covering display
window.
If power is interrupted the batteries will
keep all programs.
1
2
3
4
When the heating or cooling system is
actually operating, “HEAT” or “COOL”
will appear on the display.
If “LOW BATT” indicator appears on the
display replace the batteries.
Setting the Time and Day of Week
When you first install the two AA batteries, the thermostat automatically sets the day and
time to Monday, 12:00 a.m., shows the current room temperature and is programmed for 68°
in heat mode and 78° in cool mode. Press the reset button after installing new batteries.
The first data you should enter is the current time and day of week. As the keys are pressed,
the display will show the data being entered.
EXAMPLE:
If the unit is
being
ݗ ݚݙݘ ■ Initial read-out after pressing
M T W TH F SA SU
HEAT COOL
c
reset button.
■ Current room temperature is 72°.
■ No indication of program number.
AM
PM
:
installed at
9:15 p.m.,
Saturday, to
set the
thermostat,
you would
press the
keys in the
shown
I 2 0 0 7 2
FILTER LO BAT
SET TEMP HOLD TEMP
ݗ ݚݙݘ M T W TH F SA SU
HEAT COOL
■ Press once. Temperature digits
c
disappear, show time set mode.
AM
PM
:
HOUR
I 2 0 0 7 2
FILTER LO BAT
SET TEMP HOLD TEMP
sequence.
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ݗ ݚݙݘ M T W TH F SA SU
HEAT COOL
■ Press and hold until current hour
c
AM
appears on display.
HOUR
MIN
:
PM
I 9 0 0 7 2
FILTER LO BAT
SET TEMP HOLD TEMP
ݗ ݚݙݘ HEAT CcOOL
■ Press and hold until current
M T W TH F SA SU
minutes appear on display.
AM
PM
:
I 9 I 5 7 2
FILTER LO BAT
SET TEMP HOLD TEMP
ݗ ݚݙݘ ■ Press until current day appears
HEAT CcOOL
M T W TH F SA SU
on display.
AM
DAY
:
PM
I 9 I 5 7 2
FILTER LO BAT
SET TEMP HOLD TEMP
ݗ ݚݙݘ ■ Returns to normal time and
temperature.
■ If return is not pressed it will return
automatically in 10 seconds.
HEAT CcOOL
M T W TH F SA SU
AM
PM
RETURN
:
I 9 I 5 7 2
FILTER LO BAT
SET TEMP HOLD TEMP
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Programming
18-19
Typical Suggested Summer
and Winter Programs for Maximum Savings
Studies conducted by the Department of
Energy estimate that setting your thermostat
MO
to
FR
PROG #
TIME
5:00AM
7:00AM
3:00PM
TEMP IN F° (C°)
back 10°F for two 8-hour periods during
winter can reduce your fuel bill by as much
as 33%. By setting your thermostat up 5°
for two 8-hour periods during summer you
can reduce your fuel bill up to 25%.
1
2
3
4
68 (20) 78 (25)
60 (15) 85 (29)
68 (20) 78 (25)
10:00PM 62 (16) 82 (27)
Your thermostat is capable of holding up to
4 separate programs for each day of the
week. You can program all weekdays,
Monday to Friday, to the same 4 programs
as shown in the table, or each weekday can
have a different set of 4 programs. Similarly
weekend programs, Saturday and Sunday,
can be the same 4 programs or each
weekend day can have a different set of 4
programs.
SA
and
SUN
PROG #
TIME
TEMP IN F° (C°)
1
2
3
4
5:00AM
68 (20) 78 (25)
10:00AM 62 (16) 82 (27)
3:00PM 68 (20) 78 (25)
10:00PM 62 (16) 82 (27)
A typical set of programs is shown in Table 3.
TABLE 3
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NOTE: The thermostat program will NOT
take effect immediately after
When your program becomes effective at
the next time/temperature setting, the
appropriate corresponding program number
will appear on the display.
programming of your thermostat but at
the next programmed time/temperature
change. The thermostat is preset to 68°F
for heat and 78°F for air conditioning. So
if you want a temperature other than 68°F
or 78°F right away, use the temporary
manual override feature (described on
page 28) to enter your desired
temperature setting.
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Programming
20-21
Personal Program Schedule
Before programming or changing the
Use a pencil so you can revise your records
program, use this Personal Program Schedule each time you change your temperature
to determine which times and temperature
settings will best satisfy both your comfort
and energy saving requirements.
settings.
FOR WINTER
FOR SUMMER
PROGRAM PROGRAM PROGRAM PROGRAM
PROGRAM PROGRAM PROGRAM PROGRAM
NUMBER
1
2
3
4
NUMBER
1
2
3
4
MONDAY
TIME
TIME
TIME
TIME
MONDAY
TIME
TIME
TIME
TIME
TEMP
TEMP
TEMP
TEMP
TEMP
TEMP
TEMP
TEMP
TUESDAY
TIME
TIME
TIME
TIME
TUESDAY
TIME
TIME
TIME
TIME
TEMP
TEMP
TEMP
TEMP
TEMP
TEMP
TEMP
TEMP
WEDNESDAY TIME
TEMP
TIME
TEMP
TIME
TEMP
TIME
TEMP
WEDNESDAY TIME
TEMP
TIME
TEMP
TIME
TEMP
TIME
TEMP
THURSDAY
TIME
TIME
TIME
TIME
THURSDAY
TIME
TIME
TIME
TIME
TEMP
TEMP
TEMP
TEMP
TEMP
TEMP
TEMP
TEMP
FRIDAY
TIME
TIME
TIME
TIME
FRIDAY
TIME
TIME
TIME
TIME
TEMP
TEMP
TEMP
TEMP
TEMP
TEMP
TEMP
TEMP
SATURDAY
SUNDAY
TIME
TEMP
TIME
TEMP
TIME
TEMP
TIME
TEMP
SATURDAY
SUNDAY
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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Programming Your Thermostat
Your thermostat can be programmed in two
different ways.
1. Auto-program method
2. Manual method
PROGRAM
NUMBER
TIME
TEMP IN F° (C°)
HEAT COOL
1
2
3
4
5:00AM
7:00AM
3:00PM
68 (20) 78 (25)
60 (15) 85 (29)
68 (20) 78 (25)
MON. –
FRI.
Before programming, position the
HEAT/OFF/COOL selector to the mode to be
programmed.
Auto-program method
10:00PM 62 (16) 82 (27)
5:00AM 68 (20) 78 (25)
10:00PM 60 (15) 85 (29)
3:00PM 68 (20) 78 (25)
10:00PM 62 (16) 82 (27)
In auto-program method, you can program
your thermostat instantly for the entire week
by simply pressing “Auto Prog.” key once.
When this key is pressed, the standard
program gets activated and your thermostat
is programmed automatically. The standard
program is shown in table 4.
1
2
3
4
SAT. &
SUN.
TABLE 4
Manual method
In this method, each program is inserted
according to your personal programming
schedule.
When the battery is first inserted, the
thermostat is programmed for 68°F (20°C) in
heat mode and 78°F (25°C) in cool mode.
NOTE: There are no energy saving time or
temperature settings.
If you wish to change this program to suit
your life style, you can do so by changing the
time and the temperatures of those programs
which you want to be different than standard
programs. The method is explained in the
manual method of programming.
AUTO
PROG
Press
. Your thermostat will be
programmed automatically according to Table 4.
Familiarize yourself with manual
programming. The following example
demonstrates the manual programming
method. You can program or change the
program of weekdays, weekends, or
individual days.
(If the slide switch is in the heat mode, only
heat program is effective. In order to activate
cool program, slide the switch to cool mode
and press “Auto Prog.”)
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Programming
22-23
Programming Your Thermostat (Continued)
NOTE: 1) The program time is set in
increments of 15 minutes.
3) When setting PM time, make
sure the “PM” indicator
appears on the display.
2) The program temperature is
set in increments of 1°F.
Press
Display Reads
Weekday
Programs
ݗ ݚݙݘ M T W TH F SA SU
HEAT COOL
■ Normal display of time, temper-
c
ature, and day of the week.
AM
PM
:
8 9 1 5 7 2
FILTER LO BAT
SET TEMP HOLD TEMP
Step 1
Step 2
Step 3
ݗ ݚݙݘ ■ Selects days M to F for same set
M T W TH F SA SU
HEAT COOL
c
of 4 programs each day.
PROG
AM
PM
:
DAY
80 00 68
FILTER LO BAT
SET TEMP HOLD TEMP
ݗ ݚݙݘ ■ Program indicator (1) is displayed.
■ 68°F is displayed.
■ 0:00 space for time is displayed.
■ M to F is displayed.
M T W TH F SA SU
HEAT COOL
c
AM
PM
:
PROG
80 00 68
FILTER LO BAT
SET TEMP HOLD TEMP
ݗ ݚݙݘ ■ Press and hold until 6:00 is
displayed.
■ Note AM/PM
M T W TH F SA SU
HEAT COOL
c
AM
PM
:
HOUR
86 00 68
FILTER LO BAT
SET TEMP HOLD TEMP
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Press
Display Reads
Step 4
ݗ ݚݙݘ HEAT COcOL
M T W TH F SA SU
■ Press once to change
temperature to 69°F.
■ Weekday program 1 is complete.
■ Press PROG to move to
program 2, 3, and 4 and follow
the same steps
AM
:
PM
86 00 69
FILTER LO BAT
SET TEMP HOLD TEMP
Use
to insert or change time and
HOUR
MIN
temperatures of other programs.
Continue
for
Weekend
Programs
ݗ ݚݙݘ ■ Selects weekend days SA, SU
for same set of 2 programs each
weekend day.
■ Follow steps 2-4 to enter
programs.
M T W TH F SA SU
HEAT COOL
c
AM
PM
PROG
DAY
:
86 00 68
FILTER LO BAT
SET TEMP HOLD TEMP
Similar to weekday programming.
to insert weekend programs.
PROG
HOUR
MIN
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Programming
24-25
Individual Day Programming
To program for each individual day separately by a different set of programs, first select day
by displaying the day of program, then insert the desired times and temperatures.
Press
Display Reads
ݗ ݚݙݘ M T W TH F SA SU
HEAT COOL
■ M to F are selected. M to F will
c
PROG
DAY
have same programs.
AM
PM
:
80 00 68
ݗ ݚݙݘ FILTER LO BAT
SET TEMP HOLD TEMP
HEAT COcOL
M T W TH F SA SU
■ SA and SU will have same
PROG
DAY
program.
AM
PM
:
83 00 68
FILTER LO BAT
SET TEMP HOLD TEMP
ݗ ݚݙݘ M T W TH F SA SU
HEAT COOL
■ M is selected, program for M
c
PROG
DAY
only.
AM
PM
:
80 00 68
FILTER LO BAT
SET TEMP HOLD TEMP
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to enter programs
for Monday.
Use
PROG
HOUR
MIN
ݗ ݚݙݘ M T W TH F SA SU
HEAT COOL
■ T is selected.
c
PROG
DAY
AM
Similarly
:
PM
80 00 68
FILTER LO BAT
SET TEMP HOLD TEMP
ݗ ݚݙݘ M T W TH F SA SU
HEAT COOL
■ W is selected.
c
PROG
DAY
AM
PM
:
80 00 68
FILTER LO BAT
SET TEMP HOLD TEMP
Display the day to be programmed and use
to enter programs.
PROG
HOUR
MIN
NOTE: Another approach to programming is to first program all weekdays M through F
and SA and SU as same programs. Then, display and change the programs of only
those days which will have different programs.
NOTE: If program time remains 0:00, that particular program will not be effective; e.g.,
if Program #2 has time 0:00, the thermostat will jump from Program #1 to Program #3.
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Programming
26-27
Reviewing Programs
You may want to review the programs to see that the settings are compatible with your lifestyle.
ݗ ݚݙݘ M T W TH F SA SU
HEAT COOL
■ Normal display of current time,
Weekday
Program
c
temperature, and day of week.
AM
:
PM
8 9 1 5 7 2
FILTER LO BAT
SET TEMP HOLD TEMP
ݗ ݚݙݘ ■ 1st weekday program is displayed.
■ Program indicator (1) appears.
■ M to F indication appears.
M T W TH F SA SU
HEAT COOL
c
AM
PM
:
PROG
86 00 68
FILTER LO BAT
SET TEMP HOLD TEMP
Continue pressing
to review programs.
PROG
NOTE: The temperatures you have
entered will NOT take effect immediately,
but at the next program time change. The
Thermostat is pre-set to 68°F in heat
mode and 78°F in cool mode.
When your entered program becomes
effective, the corresponding program
number will appear on the display.
After programming, confirm
PROG
the new programs by pressing
If you want a temperature other than 68°F
or 78°F right away, you must use the
manual override feature described below
to enter the temperature you want.
If you are armchair programming the
thermostat, before you mount the face of the
thermostat, turn the system selector to the
OFF position.
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To Review The Current Temperature Setting:
ݗ ݘ ݚݙ ■ Current time and temperature
M T W TH F SA SU
HEAT COOL
c
AM
:
PM
8 9 1 5 6 8
FILTER LO BAT
SET TEMP HOLD TEMP
ݗ ݘ ݚݙ ■ 70 indicates the current setting of
the thermostat is 70°F. 68 shows
the present room temperature as
68°F.
M T W TH F SA SU
HEAT COOL
Press
for 2
seconds
or less:
c
AM
PM
:
86 70 68
FILTER LO BAT
SET TEMP HOLD TEMP
or
■ If held for more than 2 seconds,
you will manually override your
present temperature to a new
setting as explained below.
Manual Override of Program
If You Want to Change the Temperature Without Affecting
Your Program:
Press and hold
Press and hold
to raise
to lower
temperature.
temperature.
The new temperature will hold until the next program time is reached.
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Programming
28-29
Temporary Manual Override
In the following example, the present room temperature is 60°F and we want to raise the
temperature to 70°F temporarily until the next program.
ݗ ݘ ݚݙ ■ Press arrow to display current
M T W TH F SA SU
HEAT COOL
c
set and room temperatures.
AM
PM
:
8 9 6 8 6 0
FILTER LO BAT
SET TEMP HOLD TEMP
ݗ ݚݙݘ M T W TH F SA SU
HEAT COOL
■ Continue pressing arrow. After 2
seconds, the set temperature
digits will blink and begin to
increase until the button is
released at the desired setting (in
this case 70°F).
c
AM
PM
:
8 9 7 0 6 0
FILTER LO BAT
SET TEMP HOLD TEMP
■ Program number flashes.
■ Press return or in 10 seconds it
will return to showing current
time and temperature.
■ To display a manual override setting, press
either arrow for less than 2 seconds.
■ When arrow is released, the display will
show current time and temperature.
■ Your thermostat is now in manual override
mode to 70°F until the next program.
Indicator number flashes until the next
program time comes into effect.
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Programming Your Thermostat (Continued)
Permanent Manual Override
In the event you wish to hold your manual
override for vacation or just an extended
period of time, follow the temporary manual
ݗ ݚݙݘ M T W TH F SA SU
HEAT COOL
override instructions on
page 28, then immediately
press HOLD/CLEAR.
c
HOLD
CLEAR
HOLD
CLEAR
AM
:
PM
8 9 5 5 7 2
FILTER LO BAT
SET TEMP HOLD TEMP
This will maintain override
setting indefinitely. “HOLD” will
appear on the display.
To Return To Program*
ݗ ݘ ݚݙ ■ To return immediately to the
HEAT CcOOL
M T W TH F SA SU
current program, press
HOLD
CLEAR
HOLD
CLEAR
AM
PM
:
8 9 1 5 5 5
HOLD/CLEAR until program
number appears. “HOLD”
will disappear if you were in
permanent manual override.
FILTER LO BAT
SET TEMP HOLD TEMP
(*From temporary or permanent manual
override state)
NOTE: You can also return the current
program by pressing “HOLD TEMP” once
in permanent override mode.
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Other Features
30-31
Temperature Span
Your thermostat is pre-programmed at the
factory to cycle when the temperature rises
1° above or 1° below the temperature
setting. It cannot be changed.
Backlighting (Model 44350 only)
Press
The display will remain backlit for
LIGHT
approximately five (5) seconds. If another
button is pushed, the five second timer will
reset, and the light will turn off five seconds
after the last button is pressed.
Your thermostat comes with an electrolumi-
nescent lamp for easy viewing of the display
in the dark. To activate press the “light”
button between the up and down arrow keys.
12/24 Hour Clock
The 12/24 hour switch is located on the
printed circuit board inside the thermostat.
(Model 44350 only) Pressing the 12/24
button alternates the clock between 12 or
24 hour (military) mode.
NOTE: Move system selector slide switch
to “OFF” before removing thermostat
from wall and changing 12/24 hour clock
mode.
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Operations
Using the Filter Review Feature
Your thermostat also keeps a record of the
number of hours your filter has been in use.
To maximize energy efficienty, change or
clean your filter regularly.
To help you remember, at 500 hours, the
word “FILTER” will appear on the display,
reminding you to change the filter and reset
the counter back to zero. The “FILTER” will
continue to display if the counter is not set
back to zero.
Filter review will display up to 999 hours
and 59 minutes of usage. Counter will start
from zero after 999 hours and 59 minutes
of usage.
ݗ ݚݙݘ ■ Indicates the usage of filter or total
Press for
2 Seconds
or Less
M T W TH F SA SU
HEAT COOL
c
usage in hours and minutes. For
example, 145 hours and 38 minutes.
(If held for more than 2 seconds, the
counter will reset to zero.)
AM
FILTER
:
PM
8 I 4 5 3 8
FILTER LO BAT
SET TEMP HOLD TEMP
ݗ ݚݙݘ HEAT CcOOL
M T W TH F SA SU
■ Back to normal display of time and
temperature.
■ Auto-return after 10 seconds if no
AM
PM
RETURN
FILTER
:
8 9 I 5 7 2
FILTER LO BAT
SET TEMP HOLD TEMP
key is pressed.
To reset filter
counter back
to zero.
Press and
Hold for
3 to 4
ݗ ݚݙݘ M T W TH F SA SU
HEAT COOL
■ Indicates the usage of filter or total
c
usage in hours.
AM
PM
:
8 I 4 5 3 8
FILTER LO BAT
SET TEMP HOLD TEMP
ݗ ݚݙݘ M T W TH F SA SU
HEAT COOL
■ The counter will reset to zero.
■ When released, returns to current
time and temperature.
c
AM
PM
:
8 0 00 00
Seconds
FILTER LO BAT
SET TEMP HOLD TEMP
NOTE: Press FILTER RESET to clear the filter counter on Model 44300. The counter is
only reset when “FILTER” is displayed.
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Troubleshooting
Problem
32-33
Solution
SCRAMBLED OR DOUBLE DISPLAY
(numbers over numbers
1. Remove clear mylar sticker.
NO DISPLAY
1. Check battery connections and batteries.
2. Press reset button once with a small pin
and hold in for two seconds.
ENTIRE DISPLAY DIMS
1. Replace batteries.
PROGRAM DOES NOT CHANGE AT YOUR
DESIRED SETTING
1. Check that time is set properly to “AM” or
“PM.”
2. Check that thermostat is not in "HOLD"
mode.
3. Check for correct day setting.
AUTO/FAN DOES NOT COME ON
1. Move HG/HE system selector to opposite
position.
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HEATING OR COOLING DOES NOT GO
ON OR OFF
1. Check that function switch is in correct
position (“HEAT” or “COOL”).
2. There may be as much as 20 seconds
delay before the system turns on - wait
and check.
3. Check your circuit breakers and switches
to ensure there is power to the system.
4. Replace batteries.
5. Make sure your furnace blower door is
closed properly.
6. If your system only uses 4-wires, be sure
the jumper wire is installed between the
RC and RH terminals.
ERRATIC DISPLAY
1. Press the reset button once with a small
pin and hold in for two seconds. Then
reprogram.
IF UNIT CONTINUES TO OPERATE IN OFF
POSITION
1. Replace unit.
1. Replace unit.
THERMOSTAT READS , HI, LO
PERMANENTLY
If you experience any other problems, call 901-745-9222 from 8AM to 5PM Central
Standard time for technical assistance.
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Wiring Diagrams
34-35
4-wire Heat/Cool System
THERMOSTAT
Jumper
RC
RH
G
W
Y
Heat/Cool
Transformer
Fan
Heat Relay
or Valve
Cool
Contactor
Relay
5-wire Heat/Cool System
THERMOSTAT
RC
RH
G
W
Y
Cool
Heat
Fan
Heat Relay
or Valve
Cool
Transformer
Transformer
Relay
Contactor
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2-wire Heat Only
3-wire Heat Only
3-wire Cool Only
THERMOSTAT
RC
RC
RC
RH
G
W
Y
Y
Y
Heat
Heat Relay
or Valve
Transformer
THERMOSTAT
RH
G
W
Heat
Fan
Heat Relay
or Valve
Transformer
Relay
THERMOSTAT
RH
G
W
Cool
Transformer
Fan
Cool
Contactor
Relay
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