Program Thermostat Owners Manual Do not use on circuits exceeding specified voltage. Higher voltage will damage 3.

Do not use on circuits exceeding specified voltage. Higher voltage will damage 3. Move FAN switch to AUTO position. The blower should stop immediately
Model A3708 control and could cause shock or fire hazard. Do not short out terminals on gas Heating System
valve or primary control to test. Short or incorrect wiring will damage thermostat 1. Move system switch to heat mode. If the auxiliary heating system has a standing pilot,
LCD Display: Shows Time,Day,Temperature,Program Number,and
other feature information as required.
and could cause personal injury and/or property damage. be sure to light it.
Selector Switches 2. Press to adjust thermostat setting to 1 above room temperature. The heating


Reviews filter usage Electric/Gas Switch (Fan Option) system should begin to operate. The display should show “STG1”. However, if the
in hours and minutes.
Also resets filter setpoint temperature display is flashing, the compressor lockout feature is operating
counter to zero.
(see Configuration menu, item 5).
Temperature Keys:
Keys for raising or lowering
3. Adjust temperature setting to 3° above room temperature.If your system configuration
TEMP

temperature setting. is set at MS2, HP2 or HP1, the auxiliary heat system should begin to operate and the
Fan Switch: Fan display should show “STG1+2” 2”.
SYSTEM FAN switch for Automatic
or Continuous fan
4. Press to adjust the thermostat below room temperature. The heating system should
cool off heat auto ON AUTO
operation. stop operating.
System Switch: Emergency System
Selector switch for
Cool,Off,Heat or auto.
EMER bypasses the Heat Pump to use the heat source wired to terminal E on the
thermostat. EMER is typically used when compressor operation is not desired, or you
prefer back-up heat only.

GAS
K2
Soft touch programming Front Door:
buttons (see below) Cover keys Open with one finger from left or right. 1. Press SYSTEM switch to select Heat mode. then press EMER key.. “EMER” will show
Elec-Gas on the display.

ELEC
FEATURES Switch 2. Press to adjust thermostat setting above room temperature. The Aux. heating system
Structure of thermostat and explanation for the keypads will begin to operate. The display will show “STG1” “EMER” to indicate that the Aux.
For entering system is operating.
minute of day. Figure 1. Electric/Gas Switch (Fan Option) 3. Adjust temperature setting to 2°C above room temperature.The auxiliary heat system
For entering
hour of day. For entering day of week.
Overrides energy-
This thermostat is configured from the factory to operate a heat/ cool, fossil fuel (gas, oil, should begin to operate and the display should show “STG1+2”.
Enters Program Mode
saving program for reviewing and changing etc.), forced air system. It is configured correctly for any system that DOES NOT require 4. Press to adjust the thermostat below room temperature. The Aux. heating system
temperatures while weekday, weekend,or daily
you are at home
HOME
TODAY
HOUR MIN DAY PROG programs. the thermostat to energize the fan on a call for heat. If you system is an electric heat or should stop operating.
for the day. heat-pump system that requires the thermostat to turn on the fan on a call for heat, Cooling System
Measures and displays
heating and cooling system ENER
AUTO PROG
EMER
HOLD locate the ELEC/GAS switch on the back of the thermostat (see fig. 1) and switch it to 1. Move SYSTEM switch to select the Cool mode.
operating time for Today, PROG DAY / RUN

Yesterday,This Week,Last the ELEC position. This will allow the thermostat to energize the fan immediately on a 2. Press to adjust thermostat setting below room temperature. The blower should come
Week,or Total. By monitoring
your energy usage, you can
Provides permanent temperature setting call for heat. If you are unsure if the heating/ cooling system requires the thermostat to on immediately on high speed, followed by cold air circulation. The display should show
by overriding stored programs. It also
program the thermostat to EMER Mode. returns the thermostat to current program control the fan, contact a qualified heating and air conditioning service person. When the “STG1”.
optimize energy savings. control from manual override or Home
Automatically programs the Today mode. Returns display to current
thermostat is configured for Heat Pump, the thermostat will always power the circulator 3. Adjust temperature setting to 2°C below room temperature. The second stage cooling
thermostat to its built-in time and temperature. fan on a call for heat in the HEAT mode. The ELEC/GAS switch must be set to match the should begin to operate and the display should show “STG1+2”
ENERGY STAR R compliant Selects the day or days to
program setting. review or change in Program type of Auxiliary heat your system uses for proper operation in the EMERgency mode. 4. Press to adjust the temperature setting above room temperature. The cooling system
Mode. All wiring diagrams are for typical systems only. Refer to equipment manufacturers’ should stop operating.
instructions for specific system wiring information.
We are pleased you have selected one of our broad line of wall thermostat. Our products Attach Thermostat Base to Wall CONFIGURATION MENU
are manufactured to high quality standards and are designed for years of service. 1. Remove the packing material from the thermostat. Gently pull the cover straight off the INSTALLER/CONFIGURATION MENU
Read This Before Installing Thermostat base. Forcing or prying on the thermostat will cause damage to the unit. Step Press Displayed Press up or down Comments
OPERATION 2. Connect wires beneath terminal screws on base using appropriate wiring schematic Button (Factory Default) key to select
YOUR THERMOSTAT REPLACES (see figs. 2 through 4). 1 F MS 2 SS1, HP2, HP1 Selects Single stage, Multi-stage,
Description CP2811 3. Place base over hole in wall and mark mounting hole locations on wall using base as or Heat Pump (Single stage or
Heat Pump (No Aux. or Emergency Heat) Yes a template. 2-stage) System Configuration
Heat Pump (with Aux. or Emergency Heat) Yes 4. Move base out of the way. Drill mounting holes. 2 F (RECO)off on Auto Recovery select
Standard Heat & Cooling Systems Yes 5. Fasten base loosely to wall, as shown in fig. 1, using two mounting screws. Place a 3 F (SPAN)2 1,3 Span(one stage)
Two Stage Heat & Two Stage Cool Yes level against bottom of base, adjust until level, and then tighten screws. (Leveling is for 4 F (BLIT)on off BackLight
Standard Heat Only Systems Yes appearance only and will not affect thermostat operation.) If you are using existing
5 F (SP2)2 1,3 Span(Two Stage)
mounting holes, or if holes drilled are too large and do not allow you to tighten base
Millivolt Heat Only Systems– Floor or Wall Furnaces Yes 6 F (TEMP)F C Selects temperature display
snugly, use plastic screw anchors to secure subbase.
Standard Central Air Conditioning Yes °F or °C
6. Push excess wire into wall and plug hole with a fireresistant material (such as
Gas or Oil Heat Yes 7 F HOUR(12) 24 Selects time format display
fiberglass insulation) to prevent drafts from affecting thermostat operation.
Electric Furnace Yes 12hours or 24hours
Hydronic (Hot Water) Zone Heat-2 Wires Yes 8 F COMP(OFF) ON Selects Compressor
Hydronic (Hot Water) Zone Heat–3 Wires No Lockout OFF or ON
This Thermostat will NOT control 110/220Volt systems. 9 F COOL(2) 1 This model must select 2
IMPORTANT 10 F FACT(0) 1,2 Select 2,all the setting will
2, Read the entire installation section of this Owner’s Manual thoroughly before you go back to factory default
begin to install or operate your Thermostat. The configuration menu allows you to set certain thermostat operating characteristics to
This thermostat can be used for conventional or heat pump system, your system or personal requirements. Set SYSTEM switch to OFF, then simultaneously
Please configure the thermostat according to Configuration Menu press up and down keys to enter configuration menu. The display will show the first item
Mounting
before operation. Hole
Mounting in the configuration menu.The configuration menu table summarizes the configuration
REMOVE THE MYLAR LABEL FORM THE LCD DISPLAY WINDOW. Hole options. An explanation of each option follows.Press F key to change to the next menu
INSTALLATION item. To exit the menu and return to the program operation, press Hold/Run Key. If no
3, All installation is normally performed at your thermostat. keys are pressed within fifteen Seconds, the thermostat will revert to normal operation.
ARMCHAIR PROGRAMMING 1)Single Stage, Multi-stage or Heat Pump System Configuration
4 You can program your thermostat before installation by inserting the batteries and

This control can be configured for Heat Pump or two stage heat/one stage cool
following the instructions starting configuration menu.This can be done while you relax in Figure 2. Thermostat base multi-stage operation.The display indicates “MS 2” (default for multi-stage mode) in the
your favorite chair and is a very good way to familiarize yourself with all the functions of display. The Multi-stage configuration can be toggled to “SS1”, or “HP1” by pressing the
your thermostat. up or down key. In Multi-stage configuration, EMER mode is useless.
The following time and temperature settings are pre-programmed into the thermostat: 2) Select Energy Management Recovery OFF or ON
Temperature in ˚F (˚C) Your thermostat is set from the factory to gradually recover the room temperature from
Reversing Reversing 2nd Stage
Program Number Time Heat Cool Valve Valve Compressor Fan Emergency an energy saving program to your comfort program. Therefore, the thermostat may turn
Energized in Relay Heat
Energized in your system on several minutes prior to your programmed.
1 6:00 am 68˚F(20˚C) 78˚F(26˚C) Cool Mode Heat, Compressor Aux Relay TRANSFORMER
Emergency Contactor Heat (Class Current Limited)
3)Fast or Slow Crycle Selection(one stage)
2 8:00 am 60˚F(16˚C) 85˚F(29˚C) Mode Relay Hot 4)Select Backlight function OFF or on
3 4:00 pm 68˚F(20˚C) 78˚F(26˚C) 24 VAC 120 VAC
Figure 3 Typical wiring diagram for single transformer heat pump systems
Neutral 5) Fast or Slow Crycle Selection(two stage)
4 10:00 pm 60˚F(16˚C) 82˚F(28˚C) 6)Select °F or°C Readout. when you change this parameter.the programming come
COMPRESSOR PROTECTION back to fault. you have to set the programming again.
5 The thermostat provides a 4 minutes delay after shutting of the heating or cooling

Changes the display readout to Centigrade or Fahrenheit as required

system before it can be restarted. This feature will prevent damage to your compressor Reversing
Valve
Reversing
Valve
2nd Stage
Compressor Fan Emergency Limit or Safety
7) Selects time format display 12hours or 24hours
Switches
caused by rapid cycling. Note that this delay also applies to the heating system control. It Energized in
Cool Mode
Energized in
Heat,
Relay
Aux
Heat
Relay TRANSFORMER 8)Select Compressor Lockout COMP OFF or ON
Compressor
does not provide a delay when there are power outages.you can select the function on Emergency
Mode
Contactor Heat
Relay
(Class Current Limited)
Selecting COMP ON will cause the thermostat to wait 4 minutes before turning on the
Hot
or off at the configuration. 24 VAC 120 VAC
compressor if the heating and cooling system loses power. It will also wait 5 minutes
Neutral
TEMPERATURE RANGE minimum between cooling and heating cycles. This is intended to help protect the
6, This thermostat can be programmed between 45˚F and 95˚F (7˚C and 35˚C). compressor from short cycling. Some newer compressors already have a time delay
Figure 4. Typical wiring diagram for two transformer heat pump systems with NO safety circuits
However, it will display room temperatures from 30˚F to 99˚F (0˚C and 37˚C). “HI” will be built in and do not require this feature. Your compressor manufacturer can tell you if
displayed if the temperature is higher than 99˚F (37˚C), and “LO” will be displayed if the Limit or the lockout feature is already present in their system. When the thermostat compressor
temperature is lower than 30˚F (0˚C).This thermostat will automatically cutoff in Heat Reversing
Valve
Reversing
Valve
2nd Stage
Compressor Fan Emergency
Limit or
Safety
Safety
Switches time delay occurs it will flash the setpoint for about four minutes.
Energized in Relay Heat Switches
mode if the temperature rises above 95˚F (35˚C), and automatically cutoff in Cool mode Cool Mode
Energized in
Heat, Compressor Aux Relay
Auxiliary 9) This model must select 2
Emergency Contactor Heat The accessory relay scheme
if the temperature drops below 45˚F (7˚C). Mode Relay Heating
Transformer
is required when safety
10) This model must select 2 to back factory Default
circuits ezist in both systems
NOTE: if the thermostat measure a temperature over 99˚F(37 ), ”HI” will be displayed (Class


Limit or Current Limited)

Safety Limit or Safety
on the LCD. if the temperature is below 32˚F(0 ). and ”LO” will be displayed on the


Switches
Switches
Setting Time And Day
LCD,. Heat Pump Transformer Remove the mylar label covering the LCD display window before operating thermostat.
POWER FAILURE (Class Current Limited)
Initial display after power-up. The temperature will
Figure 5. Typical wiring diagram for two transformer heat pump systems with safety circuits in
7 Whenever the main power is interrupted or fails, the battery power retains and update after a few seconds.
BOTH systems

current time. This thermostat has permanent memory, although you will have to reset EXAMPLE: Set the Thermostat to the current time of 9:43 a.m. on
Mon

Heat Pump Terminal Outputs

AM

your clock when there are power outages. Saturday Refer to Figure at right
Refer to equipment manufacturers'instructions for specific system wiring information. 4

POWER SUPPLY During time and day setting mode , the temperature
You can configure the thermostat for use with the following heat pump system types: TEMP

8 The thermostat shall be powered by 24 VAC and with batteries as backup. HO UR

and program display will go blank.
HEAT PUMP TYPE 1 1. Single stage compressor system; gas or electric backup. This

BATTERY WARNING Press and hold to rapid advance to the current hour.
thermostat is designed to operate a single-transformer system. If you have a
Sat

9 Fresh alkaline batteries should provide about one year of service. However, when the
AM

two-transformer system, cut and tape off one transformer. If transformer safety circuits Tap to advance one hour at a time. Note the AM /PM
batteries become drained, “BATT” will alternate on the display with the current time. indicator, as the display will cycle through 24 hours.
are in only one of the systems, remove the transformer of the system with NO safety MIN
When this message occurs, install 2 new AA batteries, You have approximately 1 minute Press and hold to rapid advance to the current
circuits. If required, replace remaining transformer with a 75VA Class II transformer. After
to change the batteries and keep thermostat’s clock and program settings. Once the minute.
disconnecting one transformer, the two commons must be jumpered together.
batteries have become too low to ensure proper operation, your system will be turned off,
Sat

Use the terminal output information below to help you wire the thermostat properly for DAY Tap to advance one minute at a time. AM

and the display will be cleared except for “BATT” flashing on the LCD display. Tap to advance one day at a time.
your heat pump system. After wiring, see CONFIGURATION section for proper
CAUTION: Once only the “BATT” only display occurs, the thermostat is shut down, and When finished press to return to normal mode.
thermostat configuration. TEMP

your system will no longer operate. In this condition, there is no temperature HOLD
/ RUN After 15 seconds, the thermostat will return to normal
THERMOSTAT TERMINALS (HEAT PUMP)
control of your dwelling. NOTE: The backlight will not function when the automatically.
SYSTEM Heat Pump 1 Heat Pump 2
thermostat is in low battery condition. Auto Programming
NOTE: If you plan to be away from the premises over 30 days, we L Malfunction
Studies conducted by the Department of Energy estimate that Sat Sun

recommend that you replace the old batteries with new alkaline batteries prior to C* 24 Volt(Common) AM

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

leaving. R 24 Volt Emergency (hot)
during winter can reduce your fuel bill by as much as much as 2

INSTALLATION E/W1 Emergency Mode 1st stage

33%. By setting your thermostat up 5˚F (3 ) for tow 8-hour


TEMP
HEAT

What You Need W2 HP 1 and Emergency 2nd stage

periods during summer you can reduce your fuel bill up to 25%.
This thermostat includes two #8 slotted screws and two wall anchors for mounting. To Y1 Heat and Cool mode 1st stage (compressor)
Your thermostat is capable of holding up to 4 separate programs
install your thermostat, you should have the following tools and materials.
Mon Tue Wed Thu Fri
Y2 No output 2nd stage compressor for each day ofthe week. You can program all weekdays, Monday
Slotted Screwdriver(s) Small Philips screwdriver Hammer G Blower/Fan Energized on call for Heat and Cool to Friday, to the same 4 programs as show in the table, or each
Electric drill and 3/16” bit Two1.5V (AA) size alkaline batteries (included) Set GAS/ELEC switch for Emergency mode weekday can have a different set of 4 programs. Similarly
CAUTION: O Energized in Cool Mode weekend programs, Saturday and Sunday, can be the same 4
To prevent electrical shock and/or equipment dam- damage, age, disconnect B Energized in Heat Emergency mode programs or each weekend day can have a different set of 4 programs.
electric power to system at main fuse or circuit breaker box until installation is Your thermostat is pre-programmed to meet the ENERGY STAR guidelines for energy
complete. efficiency. Note that it is easier to modify these programs than to
Before removing wires from old thermostat' s switching subbase, label each wire with the
Mon Tue Wed Thu Fri Sat Sun

programs than to program the thermostat manually. AM

PM

terminal designation it was removed from. Press once. During Auto Programming, the 1 2
Reversing Heat
1. Shut off electricity at the main fuse box until installation is complete. Ensure that Reversing Compressor
Relay display will change as shown.
3 4

Valve Valve Contactor AUTO

electrical power is disconnected. Energized in Energized in Stage 2 Stage 1 PROG
The thermostat will be programmed for all 7 days
2. Remove Old Thermostat: A standard heat/cool thermostat consists of three basic Cool Mode Heat, Compressor Heat of the week as shown below.
Emergency Fan
parts: Mode
Contactor Relay Relay
Temperature in ˚F/


Stage 1 Stage 2
a. The cover, which may be either a snap-on or hinge type.
b. The base, which is removed by loosening all captive screws. Program Number Time Heat Standard
Figure 5. Typical wiring diagram for single transformer multi-stage systems
c. The switching subbase, which is removed by unscrewing the mounting screws that 1 6:00am 68 ˚F (20 ) 78 ˚F (26 )
 

CHECK THERMOSTAT OPERATION

hold it on the wall or adaptor plate. Note: 2 8:00am 60 ˚F (16 ) 85 ˚F (29 )
 

3. Remove the front cover of the old thermostat. With wires still attached, remove wall To prevent static discharge problems, touch side of thermostat to release static 3 4:00pm 68 ˚F (20 ) 78 ˚F (26 )
 

plate from the wall. If the old thermostat has a wall mounting plate, remove the build-up before touching any keys. 4 10:00pm 60 ˚F (16 ) 85 ˚F (29 )
 

thermostat and the wall mounting plate as an assembly. If at any time during testing your system does not operate properly, contact a
4. Identify each wire attached to the old thermostat. Refer to Manual Programming entering or changing the programs.
qualified serviceperson.
5. Disconnect the wires from the old thermostat one at a time. DO NOT LET WIRES PROGRAMMING
Fan Operation
FALL BACK INTO THE WALL. Before programming or changing programs, use this Personal
If your system does not have a G terminal connection, skip to Heating System System.
6. Install new thermostat using the following procedures. Program Schedule to determine which times and temperature
1. Turn on power to system.
WARNING Settings will best satisfy both your comfort and energy saving requirements. Use a
2. Move FAN switch to ON position. The blower should begin to operate.
pencil so you can revise yours records each time you change your temperature settings.
Heating . change or clear your filter regularly.
DAY Program1 Program2 Program3 Program4 1st weekday program is displayed. When the total system run time for heat and cool reaches 500 hours, you need clean
Program indicator(1) appears. or change your system’s filter, “FILT” will continue to flash until the counter is set back to
Mon Tue Wed Thu Fri
Mon. Time Time Time Time AM

Temp Temp Temp Temp Mon to Fri indication appears. zero.

Tue. Time Time Time Time PROG
HEAT
Press to review total filter usage. The display will blink “FILT”
TEMP

Temp Temp Temp Temp Continue pressing DAY to view each day. Then show the filter Monitor counter. After 15seconds, the
Wed. Time Time Time Time display will return to normal mode, or you can hit RUN to exit H

Temp Temp Temp Temp Continue pressing PROG to view each period. immediately.
Thu. Time Time Time Time The Filter Monitor will display up to 999 hours and 59 minutes of M

Temp Temp Temp Temp If you are armchair programming the thermostat, before you mount the face of the usage. In this example, the counter is at 410 Hours, 26 minutes.
Fri. Time Time Time Time thermostat, turn the system selector to the OFF position. To reset the Filter Monitor counter, depress FILTER for 3 seconds. The display will
Temp Temp Temp Temp Reviewing the Current Temperature Setting blink, and the counter will be reset to zero.
Current time and temperature. NOTE: Clearing the Filter Monitor counter will also clear ALL Energy Monitor counters,
Sat. Time Time Time Time Mon
AM
as Filter usage and Total Energy usage are the same. Also, clearing the Energy Monitor
Temp Temp Temp Temp
Press less than 1 second . counters will clear the Filter Monitor counter as well.
Sun. Time Time Time Time HEAT
Set Temperature is shown above current room Auto Recovery
Temp Temp Temp Temp TEMP

temperature. Auto Recovery calculates how early to turn your system back on, so that the room
Cooling
temperature is already comfortable by the start of the comfort temperature program
DAY Program1 Program2 Program3 Program4 OPERATION period. Auto Recovery work’s in both Heat and Cool modes.
system
Mon. Time Time Time Time System Selector Switch When the thermostat is in Auto Recovery mode, the display will
Temp Temp Temp Temp The System Selector Switch on the front of the thermostat determines alternate “RECO” with time, and the program indicator will flash. 2

Tue. Time Time Time Time the Operating mode of the thermostat. You may select COOL ,OFF , Auto Recovery can be disabled by sliding the Recovery switch TEMP
HEAT

Temp Temp Temp Temp HEAT,AUTO. In order to take full advantage of this thermostat’s cool off heat auto
on the circuit board to disable.
Wed. Time Time Time Time feature, we recommend using the AUTO mode. Refer to the Auto Season Changeover Auto Recovery will not operate if Permanent hold or Temporary
Temp Temp Temp Temp information on Auto Season Changeover. hold is in operation.
Thu. Time Time Time Time NOTE: Anytime you install or remove the thermostat form the wallplate, slide the System Auto Recovery can be canceled manually if HOLD is pressed during the recovery
Temp Temp Temp Temp Selector to the OFF position to prevent the possibility of a rapid system On-Off. process.
Fri. Time Time Time Time Fan Switch fan Auto Recovery will be canceled and change to next period.
Temp Temp Temp Temp The Fan switch should normally be located in the AUTO position. The Fan Details of Auto Recovery Operation:
Sat. Time Time Time Time will be turned on along with normal operation of your system. In a normal Auto Recovery can be disabled by sliding the Recovery switch on the circuit board to
Temp Temp Temp Temp gas or oil furnace, the Fan will be turned on by your furnace after its warm-up on auto the DISABLE position.
Sun. Time Time Time Time delay. For electric heat, air conditioning, and heat pump operation, the Fan will turn on Today is in operation.
Temp Temp Temp Temp with the system. To run the Fan on continuously, slide the Fan switch to the ON position. Auto Recovery can be canceled manually if HOLD is pressed during the recovery
Manual Programming Temporary Manual Override process. If a recovery process is canceled manually then the recovery process will not
Your thermostat can be programmed for weekdays and weekends, or have unique To temporarily change the current set temperature without start again until the next program period starts (an exception is that if time or program is
programs for all 7 days. Use Weekday /Weekend Programs or 7-day Programming to affecting your program: SET TEMP
changed then the thermostat will check Auto Recovery conditions immediately).
enter or revise programs to match your Personal Program Schedule. The same steps 1
Auto Recovery will be canceled and change to Home Today mode if HOME TODAY is
are used when entering programs for the first time, or revising programs entered during Press and hold or for less than 1 second to enter TEMP
HEAT pressed during the recovery process.
Auto Programming. Manual Override mode.. Keyboard lock
Familiarize yourself with Manual Programming, so that you can easily modify your The keyboard can be locked to prevent unauthorized changes to Mon

Press and to change to your desired new temperature. the thermostat.

AM

programs as your comfort needs change. The example below demonstrates the Manual 2

Programming method. Press to RUN to normal mode or wait 15 seconds for it to return automatically. To lock or unlock the keyboard, press and hold hold/run Key for 3 HEAT
HOLD
NOTE: / RUN The current program number will flash to signify the Temporary Override. seconds. The keyboard is locked. when LOCK appears on the TEMP

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

At the next program change, the Temporary Override is canceled, and the next display.
Heat and Cool programs. program temperature becomes the setpoint temperature. All keys are locked, Any time a key is pressed, LOCK will appear on the display for 1
2 The program temperature can be set in increments of 1˚F (1˚C).

HOLD To end the Temporary Manual Override: second.
/ RUN
3 The Heat setpoint can not be set higher than the Cool set point, and the Cool

Press and wait for HOLD to display on the lcd. Backlighting
set point can not be set lower than the Heat set point. Press HOLD key twice. This will return the set temperature to the current Your thermostat has an electroluminescent lamp that backlights the display for easy
4 If the system selector is in AUTO mode, the current operating mode will be used for

program set temperature. viewing in the dark.
programming. NOTE: The Auto Season Changeover feature will not operate while the thermostats is When any key is pressed the display is illuminated.
5 After 15 seconds without a key press, the thermostat will return to normal display

in Temporary Manual Override. Refer to the Auto Season Changeover feature for more The display will remain illuminated for 8 seconds after the last key is pressed. This
mode. information. allows the light to stay on if you need to operate several keys.
6 When setting the program time, note the AM/PM indicator.

Permanent Override or a Designated Day Override NOTE: If the thermostat is in Low Battery warning condition, the backlight will not
7 With the Auto Recovery feature enabled, you do not need to set your comfort

To hold your Manual Override for vacation or Until a Designated Thu
operate. Replace with 2 new AA alkaline batteries to restore the Backlight function.
program times early. Auto Recovery will determine how early Recovery will determine Day. HOLD PM Low Battery Warning
how early to turn your system on, so that the room is comfortable at the program time. HOLD Press to make the current program temperature the Your thermostat has a two-stage lower battery warning system.
/ RUN
Weekday/Weekend Programming HOLD temperature. HOLD will be displayed on the LCD, TEMP When the batteries are first detected to be weak, the first stage
Weekday Programs and the Program number will disappear. low battery warning is indicated 3
HEAT

Press Display Reads Follow the Temporary Manual Override instructions above to change the by “BATT” flashing on the LCD display. At your earliest TEMP

Normal display of time, temperature, Sat

Permanent Manual Override temperature. convenience, you need to replace the batteries with 2 new AA
and day of the week. PM
You can confirm the held set temperature by pressing for less than 1 second. alkaline batteries.
HOLD Press again. Hold day will be displayed on the lcd and When the batteries become too weak for normal operation, the
/ RUN
TEMP
the clock will disappear HOLD
thermostat enters the second stage low battery warning which
Press Day key to add override days. Press Hour key to shuts down the thermostat. In this condition, “BATT” flashes
HOUR
Step 1 Selects days Mon to Fir for same set of 4 reduce override days TEMP
alone on the display, and the thermostat will turn your system Off.
PROG Follow the Temporary a Designated Day Override Your system will remain shut-off until the batteries are replaced.
DAY
programs each day.
DAY
instructions above to change the Permanent Manual Override NOTE: The thermostat will still keep the current Set Temperature and Filter run time in
temperature. memory until new batteries are installed. After confirming that new batteries have been
inserted, the thermostat will return to normal operation.
Step 2 Program indicator(1) is displayed. Mon Tue Wed Thu Fri Error Mode
AM

68 is displayed. If the thermostat is unable to control your system due to an Mon

PROG


AM
1 To end Override: unexpected battery problem, the thermostat will enter Error Mode.
1

Mon to Fir is displayed. Under Permanent Override Press hold/return key twice. Under a Designated Day In this condition, the thermostat flashes “E1”,“E2”,”E3”or”E4”on HEAT

Override press the hold once. The thermostat will return to the current program, and the the LCD display, and shuts off your system. To correct this
Step 3 Press and hold until 6:00 is displayed. Mon Tue Wed Thu Fri
HOLD display will be canceled. problem, replace the batteries with 2 new AA alkaline batteries,
NOTE: The Auto Season Changeover feature will not operate while the thermostat is in even if you have recently replaced them. Move the battery out,
Mon

Note AM/PM
AM
AM

HOUR
1 permanent Manual Override. Refer to the Auto Season Changeover feature for more and then hold any key to release the rest energy. Then place the 1

information. battery again. You will need to reprogram your thermostat and
HEAT

Auto Season Changeover confirm normal operation.

Step 4 Press once to change temperature to 69 .

When the System Selector is in AUTO position , the thermostat will automatically If Error Mode returns, please call us for further information.
change between Heating and Cooling systems, depending on your program. We
Lcd display information Lcd display information
Weekday program 1 is complete. recommend keeping your programmed heating and cooling temperature at least 4˚F
Press PROG to move to program 2,3, and 4 (2˚C) apart to allow the Auto Season Changeover to occur when the appropriate E1 Sensor Error E3 No use
and follow the same steps. temperature span has been reached. However, if your heating and cooling programs set E2 System switch Error E4 E2 memory Error
temperatures are close, there is a built-in program to prevent the thermostat is in
Warning Mode
Use to insert or change time and temperature Temporary, a Designated Day Override or Permanent Override, as these overrides are Mon

HOUR MIN energy saving settings. Auto Season Changeover will still function in Home Today mode, If the SYSTEM MONITOR SWITCH is close show the system have AM

of other programs.
as this is a comfort setting. wrong. the thermostat flashs “E5”on the LCD display. 1

HEAT

Selects weekend days Sat, Sun for same For example, you may have the following temperatures programmed at a given time:
PROG
DAY set of 4 programs each weekend day. Heat Set Temp=68˚F, Cool Set Temp=78˚F
Follow steps 2-4 to enter programs. If the room temperature rises above 78˚F, then the thermostat will automatically change Auto Cut Off
to cool mode and turn on the air conditioner. Your thermostat will automatically cutoff in Heat mode if the room temperature rises
Likewise, the thermostat will automatically change to heart mode and turn on heat when above 95˚F (35˚C). It will cutoff in Cool mode if the room temperature drops below
Similar to weekday programming. the room temperature falls below 68˚F. 40˚F (4˚C).
HOME TODAY Note that if your system has malfunctioned and no longer responds to thermostat
to insert weekend programs. This patent pending feature allows you to quickly and Temporarily Override your energy controls, the Auto Cut-Off will have no effect.
PROG HOUR MIN
saving program setting on days when you are normally away from home with one key TROUBLESHOOTING
Individual Day Programming press. Problem Solution
To program for each individual day separately by a different set of programs, first select Press to enter the Home Today override .The highest SCRAMBLED OR 1. Remove clear mylar sticker.
HOLD
day by displaying the day of program, then insert the desired times and temperatures. / RUN program temperature for today will be selected from your DOUBLE DISPLAY
Press Display Reads programs in Heat mode and become the set (numbers over
Mon to Fir are selected. Mon to Fir will have temperature.(In Cool mode ,Home Today will select the HEAT
numbers)
TEMP

PROG Same programs. lowest program temperature for today to be the set NO DISPLAY 1. Check battery connections and batteries
DAY temperature.) 2. Move the battery out, and then hold any key to release
The display will alternate between “HOME” and the current time. the rest energy. Then place the battery again.
HOME
When pressed during the day, the thermostat will remain in Home Today mode ENTIRE DISPLAY 1. Replace Batteries
Sat to Sun will have TODAY until the first program of the next day. DIMS
Same programs. If the system is changed between Heat and Cool modes (either manually or by PROGRAM DOES 1. Check that the time is set properly to “AM” or “PM”
PROG
DAY Auto Season Changeover) during the “Home Today” override period, the setpoint NOT CHANGE AT 2. Check that the thermostat is not in “HOLD” o r “ Home
temperature will be automatically update. It will automatically change from the lowest YOUR DESIRE Today” mode.
cool program setpoint to the highest heat program setpoint. SETTING 3. Check for the correct day settings.
Mon is selected, program for Mon only. Press to exit Home Today mode before the schedule ending time. ”HOME” is AUTO/FAN DOES 1. Move Elec/Gas selector to opposite position is in the
HOLD
PROG
/ RUN no longer displayed on the LCD screen, and the thermostat returns to the current NOT TURN ON correct position (“HEAT,”COOL” or “AUTO”)
DAY program. 2. The thermostat may be in the AUTO Mode. Look
You can manually change the setpoint temperature while in Home Today mode. for ”AUTO” on the LCD display. If the Heat and Cool
Refer to the Temporary Manual Override instructions .Manually changing the set program temperature are close, then the thermostat
Use to enter programs for Monday. temperature while in Home Today mode will not affect the Home Today ending requires a larger room temperature change before
PROG
HOUR MIN time, However, the set temperature will not change automatically with a manual changing from Heat or Cool.
DAY
or Automatic change between heating and cooling. 3. There may be as much as 4 minute delay before the
Energy Monitor Heat or Cool system turns On-wait and check.
Similarly Tue to Sunday can be selected. The Energy monitor feature measures and stores the H (Compressor protection delay).
amount of time the heating and air conditioning system 4 Check your circuit breaks and switches to ensure there
PROG
operates. Usage can be display for Today (since 12 am),


ENER
DAY M is power to the system.
Yesterday, This Week (since Monday), Last Week (last 5. Replace batteries.
Monday through Sunday), and Total (up to 999 Hrs). By monitoring your energy 6. Make sure your furnace blower door is closed properly.
Display the day to be programmed and use usage, you see how much the set-back periods are saving, and you can test 7. If your system only uses 4-wires, be sure the jumper
program adjustment to save even more. To review energy usage, press to cycle wire is installed between the RC and RH terminals.
PROG
DAY HOUR MIN to enter programs. through Today, Yesterday, this Week, Last Week, and Total. Press again to return 8. Check the position of the Furnace or Heat Pump selector
to normal mode, or wait 15 seconds for the display to return to normal mode .You switches: Normal/O/B.
NOTE: Another approach to programming is to first program all weekdays Mon can also return to normal mode at any time by pressing RUN. ERRATIC DISPLAY 1. Move the battery out, and then hold any key to release
through Fir and Sat and Sun as same programs. Then, display and change the HOLD
For example: This LCD display shows Today’s usage to be 10 Hours, 26 the rest energy. Then place the battery again.
programs of only those days which will have different programs. / RUN minutes. IF UNIT CONTINUES 1. Replace unit
Reviewing Programs Press and hold for 3 seconds to reset the Energy Monitor’s counters. TO OPERATE IN THE
The display will blink, and counters will be cleared to zero. OFF POSITION
You may want to review the programs to see that the settings are compatible with your NOTE: Clearing the Energy Monitor counter will also clear the Filter Monitor counter , as
THERMOSTAT 1. Replace unit.
lifestyle. Filter usage and Total Energy usage are the same. Also, clearing the filter Monitor
Sat PERMANENTLY
counter will clear ALL Energy Monitor counters as well.
PM READS
Normal display of current time, day of week Filter Monitor
“E1”,”E2”,”E3”, “E4”..
temperature, and day of week. TEMP
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,