Comfort Stat CP2006 User Manual

Program Thermostat Owners Manual

Model：CP2006

LCD Display:Shows
Time,Day,Temperature,
Program Number,and
other feature information
as required.

Temperature Keys: Keys for
raising or lowering trmperature
setting.

Reviews filter usage
in hours and minutes.
Also resets filter
counter to zero.

system

cool

heat off

FEATURES

buttons (see below)

Front Door:Covers keys Open with one finger from left or right.Soft touch programming

Structure of thermostat and explanation for the keypads

Overrides energy­saving program
temperatures whi le
you are at home
for the day.

Measures and displays
heating and cooli ng system
operating ti me for Today,
Yesterday,This Week,Last
Week,or Total. By moni toring
your energy usage, y ou can
program the ther mostat to
optimize energy savi ngs.

We are pleased you have selected one of our broad line of wall thermostat. Our products
are manufactured to high quality standards and are designed for years of service.

Read This Before Installing Thermostat
OPERATION

Automaticall y programs the
thermostat to i ts built-in
ENERGY STAR compliant
program setti ng.

For entering
hour of day.

HOME

TODAY

ENER

R

For entering
minute of day.

HOUR MIN

PROG

AUTO
PROG

DAY

Selects the day or days to
review or change i n Program
Mode.

1，Your Thermostat is designed to operate with most gas, oil, electric or 2-wire hot water
heating and air conditioning systems. It will also operate single-stage heat pumps that do
not have auxiliary or emergency heat.
These have 24-volt or millivolt control systems and represent most central heating, air
conditioning, or space heating units in use in the United States.
This Thermostat will NOT control multi-stage heat pumps or 110/220Volt systems.

IMPORTANT

2, Read the entire installation section of this Owner’s Manual thoroughly before you
begin to install or operate your Thermostat.
REMOVE THE MYLAR LABEL FORM THE LCD DISPLAY WINDOW.

INSTALLATION
3, All installation is normally performed at your thermostat.
ARMCHAIR PROGRAMMING

4，You can program your thermostat before installation by inserting the batteries and
following the instructions starting Feature selector switches .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 thermostat.

The following time and temperature settings are pre-programmed into the thermostat:

Temperature in F˚ (C˚)
Program Number Time Heat Cool

1 6:00 am 68˚F(20˚C) 78˚F(26˚C)
2 8:00 am 60˚F(16˚C) 85˚F(29˚C)
3 4:00 pm 68˚F(20˚C) 78˚F(26˚C)
4 10:00 pm 60˚F(16˚C) 82˚F(28˚C)

COMPRESSOR PROTECTION

5，The thermostat provides a 4 minutes delay after shutting of the heating or cooling
system before it can be restarted. This feature will prevent damage to your compressor
caused by rapid cycling. Note that this delay also applies to the heating system control. It
does not provide a delay when there are power outages.

TEMPERATURE RANGE

This thermostat can be programmed between 45˚F and 95˚F (7˚C and 35˚C). However, it
will display room temperatures from 30˚F to 99˚F (0˚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 30˚F (0˚C).
This thermostat will automatically cutoff in Heat mode if the temperature rises above
95˚F (35˚C), and automatically cutoff in Cool mode if the temperature drops below 45˚F
(7˚C).
NOTE: if the thermostat measure a temperature over 99˚F(37℃), ”HI” will be displayed
on the LCD. if the temperature is below 32˚F(0℃). and ”LO” will be displayed on the
LCD.

POWER FAILURE

7， Whenever the main power is interrupted or fails, the battery power retains and
current time.

AUTO RECOVERY

8， Your thermostat is set from the factory to gradually recover 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 the Selector Switches
information on Selector switches

POWER SUPPLY

9，The thermostat shall be powered by 24 VAC and with batteries as backup.

BATTERY WARNING

9，Fresh alkaline batteries should provide about one year of service. However, when the
batteries become drained, “BATT” will alternate on the display with the current time.
When this message occurs, install 2 new AA batteries, You have approximately 1 minute
to change the batteries and keep thermostat’s clock and program settings. Once the
batteries have become too low to ensure proper operation, your system will be turned off,
and the display will be cleared except for “BATT” flashing on the LCD display.
CAUTION: Once only the “BATT” only display occurs, the thermostat is shut down, and

your system will no longer operate. In this condition, there is no temperature
control of your dwelling. NOTE: The backlight will not function when the

thermostat is in low battery condition.

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.

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.

■ Slotted Screwdriver(s) ■ Small Philips screwdriver ■ Hammer

■ Electric drill and 3/16” bit ■ Two1.5V (AA) size alkaline batteries (included)

Remove Old Thermostat

CAUTION: Do not remove any wiring from existing thermostat before r eading the
instructions carefully. Wires must be labeled prior to removal.
INPORTANT! 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 the 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.

Typical Home Thermostats

Wall mounting Plate Thermostat Cover

Battery Compartment:
Front access allows
easy insertion of two
AA 1.5V batteries.

F

fan

auto

on

auto

For entering day of week.

DAY

PROG

HOLD

RUN

CLEAR

Provides permanent temperature sett ing
by overriding st ored programs. It also
returns the ther mostat to current program
control from man ual override or Home
Today mode.

Front Door:
Battery cover
Open with one
finger from top.

Fan Switch: Fan
switch for Automatic
or Continuous fan
operation.

System Switch:
Selector switch for
Cool,Off,Heat or auto.

Enters Program Mode
for reviewin g and changing
weekday, weekend,or daily
programs.

Returns displa y to current
time and temperatur e.

Figure1

Wiring Labeling

■ Each wire coming from the wall to the existing thermostat is connected to a terminal
point on that thermostat. Each of these terminal points is usually marked with a code
letter as shown in Table A below.

■ Note that this thermostat has multiple function terminals that allow Single-Stage Heat
Pump capability. Standard systems use: RH, RC, G, Y, W. [Single-Stage Heat Pumps
use: R, Y, G, and O or B.] Table A below shows the multiple functions of the terminals.
Use the terminals that match your system.

■ 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. 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
SELFADHESIVE LABELS PROVIDED TO THE WIRE AS SHOWN IN TABLE A
BELOW. (For example, attach the label marked W to the wire that toes 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.

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

Y

RH

G

W

RC

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
with insulating material 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.

If the code letter on

your existing

Thermostat is

Table A

AC24V

AC24V

RH,R,
VR or 4
24 Volt

RC,VC,
24 Volt Cool

G or F
Fan

Y,Y1 C or M
(See Note)
Air Conditioning
Compressor

W or H
Heating

Not for heat pumps

O, B, or R
Reversing Valve
(Single-stage
Heat Pumps only)

then mark the wire with

L

N

label shown

and connect to

thermostat terminal

shown

L

N

RH

RC

G

Y/Y1

W

O/B

NOTE: Do not connect a “Common” wire (sometimes labeled “C”) to any terminal on this
thermostat. Tape up the wire and do not use. This wire provides electricity to non-battery
powered thermostats.

Mount Wallplate and Thermostat

■ Remove the wallplate from your
thermostat by pressing the release
tab on the bottom of the thermostat.
See Figure 2. 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 wallplate.

■ Drill holes with 3/16” bit and gently
tap anchors into the boles 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. Figure3

NOTE: 5- Wire Systems

R

H

L

N

OB

R

C

Y

/

Y

1

G

W

If your thermostat has one wire marked R or RH (2, 3, or 4-wire system), then leave the
jumper wire between the RH and RC terminals on the wallplate. Otherwise, if you have
separate RH and RC wires (5-wire system), then remove the jumper wire between the
RH and RC terminals.

Connect Wires and Mount Thermostat to
Wallplate Figure 5

■ Match and connect the labeled wires to the
appropriate coded terminal screws on the
wallplate. (See Figure 4, 5) Ignore any wires
which may be present, but which were note
connected to the old thermostat.

Figure4

RH

■ Refer to the Wiring

Diagrams below to be sure your system is wired correctly.

■ 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 the hole to prevent interference when installing the

thermostat to the wallplate.

■ Make sure the System Switch is set to OFF, and the Fan Switch is set to AUTO.

■ If your system is a single stage heat pump and uses an O or B wire, you must move

the System Selector switch inside the thermostat to the Heat Pump position. If you have
a normal furnace or electric system, leave the switch in the Standard position. Refer to
the System Selector section on the back for more information on this switch.

■ Insert the tabs on top of the thermostat body into the slots at the top of the wallplate.

Press the bottom of the thermostat body into the snap on the bottom of 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 alkaline batteries, observing the polarity marked inside the

battery compartment.

■ Switch on the main power at the panel or furnace.

Selector Switches

In order for this thermostat to control your system, the system type must be specified by
the selector switches on the printed circuit board inside the thermostat. There is also a
selector switch for your choice of Fahrenheit or Celsius temperature display.

Heating System Selector (HG – HE switch)

The factory position for this switch is in the “HG” position. Leave 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 after installation. If the Fan operation is normal,
leave it in the “HG” position. If the Fan does not come on within minute of the thermostat
calling for heating, 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.

Furnace or Heat Pump selector (NORMAL-O-B switch)

The factory position for this switch is in the
NORMAL position. Leave it in this position if you
have ANY system that uses gas, oil, electric, or
hot water heating.
If you have a single-stage Heat Pump (no
auxiliary or emergency heat source), then slide
the switch to the position that matches your

RH-RC WIRE SYSTEM

OFF

ON

NAME

F/C

12/24

SPAN

RECOVERY

K3

SYSTEM SETTING

ALTERNATE

CELSIUS

24 HOURS

+2F/-1F

DISABLE

5WIRES

4WIRES/HEAT PUMP

O

B

NORMAL

* STANDAND

FAHRENHEIT

12 HOURS

+1F/-1F

ENABLE

1234

RECOVERY ENABLE

DISABLE

FAHRENHEIT

CELSIUS

SPAN (+1F/-1F)

(+2F/-1F)

12 HOURS

24 HOURS

JP1

HG

HE

K2

Reversing Valve type. If your heat pump system has a “B” wire, slide the switch to ”B” for
your reversing valve that activates in HEAT mode. If your heat pump system has an “O”
wire, slide the switch to “O” for your reversing valve that activates in COOL mode.

Feature Selector Switches:
F˚ / C˚ selector (Fahrenheit / Celsius)

Your thermostat is set for F˚ mode from the factory. In order to change to C˚ mode, slide
the switch to C˚ and Move the battery out and wait for about 1 minute then place the
batteries .

NOTE: Unless press any key about 2 seconds without the battery, then place the battery
again. the thermostat will not change temperature mode. All progra ms and settings will
be lost..

12Hr. / 24 Hr. selector

Your thermostat is set from the factory in normal 12 (AM/PM) time format. To change to
24 hour (military) time, slide the Switch to the 24 position. This change may be made
without resetting the thermostat, and will automatically change the current time display
and all program times in memory.
Span selector –Switch 7
Your thermostat is set temperature. If you require slower temperature cycles in Heat
mode, you can select +2˚F/-1˚F by sliding the switch to this position. This may be
necessary if your heating system cycles too rapidly.

Auto Recovery s elect

Your thermostat is set from the factory with the Auto Recovery Feature enabled , If you
prefer to use normal recovery, slide the switch to this position.
Table B below summarizes the Feature Switches discussed above. A similar table is
printed directly on the circuit board for your quick reference.

Switch Setting

Function Alternate Standard

˚F/ Celsius Fahrenheit

12Hr. / 24 Hr. 24 Hour 12 Hour

Span +2˚F/-1˚F +1˚F/-1˚F

Auto Recovery Disable Enable

Setting Time And Day

Table B

Remove the mylar label covering the LCD display window before operating thermostat.

■ Initial display after power-up. The temperature will

update after a few seconds.

EXAMPLE: Set the Thermostat to the current time of 9:43 a.m. on

Saturday Refer to Figure at right

■ During time and day setting mode , the temperature

HOUR

and program display will go blank.

■ Press and hold to rapid advance to the current hour.
Tap to advance one hour at a time. Note the AM /PM

MIN

indicator, as the display will cycle through 24 hours.

■ Press and hold to rapid advance to the current

.

minute

DAY

Tap to advance one minute at a time.

■ Tap to advance one day at a time.

■ When finished press to return to normal mode.

RUN

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

Auto Programming

Studies conducted by the Department of Energy estimate that
setting your thermostat back 10˚F (6) for two 8-hour periods
during winter can reduce your fuel bill by as much as much as 33%.
By setting your thermostat up 5˚F (3℃) for tow 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 ofthe week. You can program all weekdays, Monday to
Friday, to the same 4 programs as show 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.
Your thermostat is pre-programmed to meet the ENERGY STAR
guidelines for energy efficiency. Note that it is easier to modify these programs than to
programs than to program the thermostat manually.

■ Press once. During Auto Programming, the display

AUTO

will change as shown.

PROG

■ The thermostat will be programmed for all 7 days
of the week as shown below.

Temperature in ˚F/℃

Program Number Time Heat Standard

1 6:00am 68 ˚F (20℃) 78 ˚F (26℃)

2 8:00am 60 ˚F (16℃) 85 ˚F (29℃)

3 4:00pm 68 ˚F (20℃) 78 ˚F (26℃)

4 10:00pm 60 ˚F (16℃) 85 ˚F (29℃)

■ Refer to Manual Programming entering or changing the programs.

PROGRAMMING

Before programming or changing programs, use this Personal
Program Schedule to determine which times and temperature
Settings will best satisfy both your comfort and energy saving requirements. Use a
pencil so you can revise yours records each time you change your temperature settings.

Heating

DAY Program1 Program2 Program3 Program4

Mon. Time

Tem p

Tue. Time

Tem p

Wed. Time

Tem p

Thu. Time

Tem p

Fri. Time

Tem p

Sat. Time

Tem p

Sun. Time

Tem p

Time

Tem p

Time

Tem p

Time

Tem p

Time

Tem p

Time

Tem p

Time

Tem p

Time

Tem p

Time

Tem p

Time

Tem p

Time

Tem p

Time

Tem p

Time

Tem p

Time

Tem p

Time

Tem p

Time

Tem p

Time

Tem p

Time

Tem p

Time

Tem p

Time

Tem p

Time

Tem p

Time

Tem p

Cooling

DAY Program1 Program2 Program3 Program4

Mon. Time

Tem p

Tue. Time

Tem p

Wed. Time

Tem p

Thu. Time

Tem p

Fri. Time

Tem p

Sat. Time

Tem p

Sun. Time

Tem p

Time

Tem p

Time

Tem p

Time

Tem p

Time

Tem p

Time

Tem p

Time

Tem p

Time

Tem p

Time

Tem p

Time

Tem p

Time

Tem p

Time

Tem p

Time

Tem p

Time

Tem p

Time

Tem p

Time

Tem p

Time

Tem p

Time

Tem p

Time

Tem p

Time

Tem p

Time

Tem p

Time

Tem p

Manual Programming

■ Your thermostat can be programmed for weekdays and weekends, or have unique
programs for all 7 days. Use Weekday /Weekend Programs or 7-day Programming to
enter or revise programs to match your Personal Program Schedule. The same steps
are used when entering programs for the first time, or revising programs entered during
Auto Programming.

■ Familiarize yourself with Manual Programming, so that you can easily modify your
programs as your comfort needs change. The example below demonstrates the Manual
Programming method.

NOTE:

1，The program time can be set in 10-minute increments, and remains the same for both

Heat and Cool programs.

play

y

r

2，The program temperature can be set in increments of 1˚F (1˚C).
3，The Heat setpoint can not be set higher than the Cool set point, and the Cool
set point can not be set lower than the Heat set point.
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 Recovery will determine
how early to turn your system on, so that the room is comfortable at the program time.

Weekday/Weekend Programming

Programs

Weekday
Press Display Reads

■ Normal display of time, temperature,
and day of the week.

Step 1 ■ Selects days Mon to Fir for same set of 4

Step 2 ■ Program indicator(1) is displayed.

■ 68℉ is displayed.

■ Mon to Fir is displayed.

Step 3 ■ Press and hold until 6:00 is displayed.

■ Note AM/PM

Step 4 ■ Press once to change temperature to 69℉.

■ Weekday program 1 is complete.

of other programs.

■ Selects weekend days Sat, Sun for same
set of 4 programs each weekend day.

PROG

PROG

HOUR

Use to insert or change time and temperature

PROG

DAY

■ Follow steps 2-4 to enter programs.

programs each day.

DAY

■ Press PROG to move to program 2,3, and 4

and follow the same steps.

HOUR

MIN

Similar to weekday programming.

PROG

to insert weekend programs.

HOUR MIN

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

■ Mon to Fir are selected. Mon to Fir will have

PROG

Same programs.

DAY

PROG

DAY

■ Mon is selected, program for Mon only.

PROG

DAY

Use to enter programs for Monday.

PROG

DAY

Similarly ■Tue to Sunday can be selected.

PROG

DAY

■ Sat to Sun will have
Same programs.

MIN

HOUR

Display the day to be programmed and use

PROG

DAY

HOUR

MIN

to enter programs.

NOTE: Another approach to programming is to first program all weekdays Mon
through Fir and Sat and Sun as same programs. Then, display and change the
programs of only those days which will have different programs.
Reviewing Programs

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

temperature, and day of week.
.

■ Normal display of current time, day of week

■ 1st weekday program is displayed.

■ Program indicator(1) appears.

■ Mon to Fri indication appears.

■Continue pressing to view ea ch perio d.

PROG

■Continue pressing to view eac h da y.

DAY

PROG

If you are armchair programming the thermostat, before you mount the face of the

thermostat, turn the system selector to the OFF position.

Reviewing the Current Temperature Setting

Current time and temperature.

■ Press less than 1 second .

■ Set Temperature is shown above current room temperature.

OPERATION
System Selector Switch

The System Selector Switch on the front of the thermostat determines

system

the Operating mode of the thermostat. You may select COOL ,OFF ,
HEAT,AUTO. In order to take full advantage of this thermostat’s
feature, we recommend using the AUTO mode. Refer to the Auto Season Changeover

cool

heat

auto

off

information on Auto Season Changeover.
NOTE: Anytime you install or remove the thermostat form the wallplate, slide the System
Selector to the OFF position to prevent the possibility of a rapid system On-Off.

Fan Switch

fan

The Fan switch should normally be located in the AUTO position. The Fan
will be turned on along with normal operation of your system. In a normal
gas or oil furnace, the Fan will be turned on by your furnace after its warm-up

auto

on

delay. For electric heat, air conditioning, and heat pump operation, the Fan will turn on
with the system. To run the Fan on continuously, slide the Fan switch to the ON position.

Temporary Manual Override

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

■ Press and hold or for less than 1 second to enter
Manual Override mode..

■ Press and to change to your desired new temperature.

■ Press to RUN to normal mode or wait 15 seconds for it to return automatically.

RUN

■ The current program number will flash to signify the Temporary Override.
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 and wait for HOLD to display on the lcd.

HOLD

CLEAR

■ Press HOLD key twice. This will return the set temperature to the current

program set temperature.

NOTE: The Auto Season Changeover feature will not operate while the thermostats is
in Temporary Manual Override. Refer to the Auto Season Changeover feature for more
information.

Permanent Override or a Designated Day Override

To hold your Manual Override for vacation or Until a Designated

Day.

HOLD

CLEAR

HOLD

CLEAR

HOLD

CLEAR

HOUR

Day Override press the hold once. The thermostat will return to the current program, and

the HOLD display will be canceled.
NOTE: The Auto Season Changeover feature will not operate while the thermostat is in
permanent Manual Override. Refer to the Auto Season Changeover feature for more
information.

Auto Season Changeover

When the System Selector 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 temperature at least 4˚F
(2˚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 is in
Temporary, a Designated Day Override or Permanent Override, as these overrides are
energy saving settings. 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:
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.
Likewise, the thermostat will automatically change to heart mode and turn on heat when
the room temperature falls below 68˚F.

HOME TODAY

This patent pending 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.

HOLD

CLEAR

HOME

TODAY

Auto Season Changeover) during the “Home Today” override period, the setpoint
temperature will be automatically update. It will automatically change from the lowest
cool program setpoint to the highest heat program setpoint.

HOLD

CLEAR

Energy Monitor

ENER

HOLD

CLEAR

NOTE: Clearing the Energy Monitor counter will also clear the Filter Monitor counter , as
Filter usage and Total Energy usage are the same. Also, clearing the filter Monitor
counter will clear ALL Energy Monitor counters as well.

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 clear your filter regularly.

■ When the total system run time for heat and cool reaches 400
hours, you need clean or change your system’s filter, “FILT” will
continue to flash until the counter is set back to zero.

■ Press to review total filter usage. The display will blink “FILT”
Then show the filter Monitor counter. After 15seconds, the display
will return to normal mode, or you can hit RUN 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, depress FILTER for 3 seconds. The display will
blink, and the counter will be reset to zero.
NOTE: Clearing the Filter Monitor counter will also clear ALL Energy Monitor counters,
as Filter usage and Total Energy usage are the same. Also, clearing the Energy Monitor
counters will clear the Filter Monitor counter as well.

Auto Recovery

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 work’s in both Heat
and Cool modes.

■When the thermostat is in Auto Recovery mode, the display will
alternate “RECO” with time, and the program indicator will flash.

■Auto Recovery can be disabled by sliding the Recovery switch on
the circuit board to disable.

■ Press to make the current program temperature

the HOLD temperature. HOLD will be displayed on

the LCD, and the Program number will disappear.

■ Follow the Temporary Manual Override instructions above to change the

Permanent Manual Override temperature.

■ You can confirm the held set temperature by pressing for less than 1

second.

■ Press again. Hold day will be displayed on the lcd

and the clock will disappear

■Press Day key to add override days. Press Hour

key to reduce override days

■ Follow the Temporary a Designated Day Override instructions above to

change the Permanent Manual Override

DAY

temperature.

To end Override:

Under Permanent Override Press hold/return key twice. Under a Designated

■ Press to enter the Home Today override .The highest program temperature for
today will be selected from your programs in Heat mode
and become the set temperature.(In Cool mode ,Home
Today will select the lowest program temperature for today
to be the set temperature.)

■ The display will alternate between “HOME” and the current time.

■ When pressed during the day, the thermostat will remain in Home Today mode

until the first program of the next day.

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

■ 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 .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 between heating and cooling.

■ The Energy monitor feature measures and stores the
amount of time the heating and air conditioning system
operates. Usage can be display for Today (since 12 am),
Yesterday, This Week (since Monday), Last Week (last
Monday through Sunday), and Total (up to 999 Hrs). By monitoring your energy
usage, you see how much the set-back periods are saving, and you can test
program adjustment to save even more. To review energy usage, press to cycle
through Today, Yesterday, this Week, Last Week, 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 RUN.

■ 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.
The display will blink, and counters will be cleared to zero.

■Auto Recovery will not operate if Permanent hold or Temporary hold is in operation.

■Auto Recovery can be canceled manually if HOLD is pressed during the recovery

process.

■Auto Recovery will be canceled and change to next period.

Details of Auto Recovery Operation:

■ Auto Recovery can be disabled by sliding the Recovery switch on the circuit board to
the DISABLE position.

■ Today is in operation.

■ Auto Recovery can be canceled manually if HOLD 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).

■ Auto Recovery will be canceled and change to Home Today mode if HOME TODAY is
pressed 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 the
and Keys for 3 seconds. The keyboard is locked
when LOCK appears on the display.

■ All keys are locked, Any time a key is pressed, LOCK will appear
on the display for 1 second.

Backlighting

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 8 seconds after the last key is pressed. This
allows the light to stay on if you need to operate several keys.
NOTE: If the thermostat is in Low Battery warning condition, the backlight will not
operate. Replace with 2 new AA alkaline batteries to restore the Backlight function.

Low Battery Warning

Your thermostat has a two-stage lower battery warning system. When the batteries are
first detected to be weak, the first stage low battery warning is indicated
by “BATT” flashing on the LCD display. At your earliest convenience,
you need to replace the batteries with 2 new AA alkaline batteries.
When the batteries become too weak for normal operation, the
thermostat enters the second stage low battery warning which shuts
down the thermostat. In this condition, “BATT” flashes alone on the
display, and the thermostat will turn your system Off. Your system will
remain shut-off until the batteries are replaced.
NOTE: The thermostat will still keep the current Set Temperature and
Filter run time in memory until new batteries are installed. After confirming that new
batteries have been inserted, the thermostat will return to normal operation.

Error Mode

If the thermostat is unable to control your system due to an unexpected battery problem,
the thermostat will enter Error Mode. In this condition, the thermostat
flashes “E1”or “E2”on the LCD display, and shuts off your system. To
correct this problem, replace the batteries with 2 new AA alkaline
batteries, even if you have recently replaced them. Move the battery
out, and then hold any key to release the rest energy. Then place the
battery again. You will need to reprogram your thermostat and
confirm normal operation.

If Error Mode returns, please call us for further information.

Lcd dis

E1 Sensor Erro

information Lcd displa

E2 System switch

information

Auto Cut Off

Your thermostat will automatically cutoff in Heat mode if the room temperature rises
above 95˚F (35˚C). It will cutoff in Cool mode if the room temperature drops below
40˚F (4˚C).
Note that if your system has malfunctioned and no longer responds to thermostat
controls, the Auto Cut-Off will have no effect.

Wiring Diagrams

120V
AC

THERMOSTAT

AC24V

L

RC

RH

N

G

O/B

Y

120V
AC

THERMOSTAT

AC24V

L

RC

RH

N

G

O/B

Y

120V
AC

THERMOSTAT

AC24V

RC

RH

NL

G

O/B

Y

120V
AC

THERMOSTAT

AC24V

RC

RH

NL

G

O/B

Y

120V
AC

L

THERMOSTAT

AC24V

RC

RH

N

G

O/B O/B

Y

120V
AC

THERMOSTAT

AC24V

L

RC

RH

N

G

Y

TROUBLESHOOTING

Problem

SCRAMBLED OR

Solution

1. Remove clear mylar sticker.
DOUBLE DISPLAY
(numbers over
numbers)

NO DISPLAY 1. Check battery connections and batteries

2. Move the battery out, and then hold any key to release

the rest energy. Then place the battery again.

ENTIRE DISPLAY

1. Replace Batteries
DIMS

PROGRAM DOES
NOT CHANGE AT
YOUR DESIRE
SETTING

AUTO/FAN DOES
NOT TURN ON

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

2. Check that the thermostat is not in “HOLD” o r “ Home

Today” mode.

3. Check for the correct day settings.

1. Move HG/HE selector to opposite position 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 temperature are close, then the thermostat
requires a larger room temperature change before
changing from Heat or Cool.

3. There may be as much as 4 minute delay before the

Heat or Cool system turns On-wait and check.
(Compressor protection delay).
4，Check your circuit breaks and switches to ensure there
is power to the system.

5. Replace batteries.

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

7. If your system only uses 4-wires, be sure the jumper

wire is installed between the RC and RH terminals.

8. Check the position of the Furnace or Heat Pump selector

switches: Normal/O/B.

ERRATIC DISPLAY 1. Move the battery out, and then hold any key to release

the rest energy. Then place the battery again.

IF UNIT CONTINUES
TO OPERATE IN THE

1. Replace unit

OFF POSITION

THERMOSTAT
PERMANENTLY

1. Replace unit.

READS “HI”, “LO”,
OR “E1”,“E2”.

If you experience any other problems, call us for technical assistance.

The service number is 1-866-591-9898