Lux Products PSP711CC Series Thermostat User Manual

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Complete, Easy To Read  
INSTALLATION AND OPERATING  
INSTRUCTIONS  
4. Hold the base against the wall. Route the wires through the hole below  
the terminal block. Position the base for best appearance (to hide any marks  
from an old thermostat). Attach the base to the wall with the two screws  
provided.  
TEMPERATURE ADJUSTMENT:  
SETTING THE AIR FILTER LIFE  
Pressing an arrow key once adjusts the set temperature by one degree in  
the associated direction. Holding the key will automatically advance the  
setting in the associated direction.  
This value sets the number of days to be counted before a filter  
change is indicated.  
To set the AIR FILTER USAGE LIMIT:  
1. Rotate dial to AIR FILTER.  
2. LCD shows: SET LIMIT at lower left, with current setting at center  
screen.  
3. With a new filter installed, use the UP/DOWN keys to change this  
value to the number of days of useful filter life specified by your filter  
manufacturer. The available settings are: 000, 30, 60, 90, and 120 days.  
The default air filter life setting is 90 days. A selection of 000 days will  
disable the Air Filter Counter feature completely, and hide both the  
“number of days” and the “bar graph” items from the red lower portion of  
the display.  
4. The counter for the Air Filter Usage Monitor is automatically reset  
back to zero when the usage limit setting value has been changed.  
5. Return the dial to the RUN position when finished.  
CONNECTING THE WIRES  
CHANGING OTHER SETTINGS:  
5. Wires must be trapped between black clamp and brass  
terminal.  
If there are many choices for a value, usually that setting will automatically  
advance by holding one of the arrow keys. Some settings though, must be  
changed one press at a time.  
6. Securely tighten all 7 electrical terminal screws.  
PSP711CC SERIES  
DISPLAY ILLUMINATION:  
SMART TEMP ELECTRONIC THERMOSTAT  
These diagrams are provided for new installations or unreferenced wires.  
Press the light bulb button to illuminate the display. Pressing other  
buttons will keep the display illuminated until no button has been pressed for  
approximately 20 seconds.  
HEATING SYSTEMS  
COOLING SYSTEMS  
M  
JUMPER  
PROVIDED  
JUMPER  
PROVIDED  
Easy as  
AT  
FAN MODES:  
F  
Y  
The fan switch has three positions AUTO, CLEAN, and ON. Setting the  
FAN switch to AUTO automatically runs your system's fan as required only  
for heating and cooling. The CLEAN position insures that your system's fan  
runs at least the programmed minimum duty cycle. The default duty cycle  
requires it to run 15 minutes every hour. Setting the FAN switch to ON runs  
your system's fan continuously. The FAN icon will flash whenever the fan is  
running.  
1–2–3  
G
Y
W
RH RC  
B
O
G
Y
W
RH RC  
B
O
Installs Easily  
Set Day and Time  
Choose Heat or Cool  
LUX PRODUCTS CORPORATION  
Mt. Laurel, New Jersey 08054, USA 43376-05  
RESETTING AIR FILTER COUNTER  
To reset the air filter counter when you replace your filter:  
1. Rotate dial to AIR FILTER.  
G
F
W
RH  
RC  
R
V
5
G
F
Y
RC  
R
WARNING: Use Energizer® or DURACELL® Alkaline Batteries Only.  
Energizer® is a registered trademark of Eveready Battery Company, Inc.  
DURACELL® is a registered trademark of The Gillette Company, Inc.  
2. Press and release COPY to reset counter  
3. Press and release COPY again to restore previous count.  
4. Return the dial to the RUN position when finished.  
N O T E  
The FAN switch works only if your system provides a wire for the  
PSP711CC’s “G” terminal.  
H
4
C*  
6
V
TEMPERATURE OVERRIDE  
I M P O R T A N T !  
OVERRIDE allows you to change the current SET TEMPERATURE in  
HEAT or COOL until the next program period without changing your  
temperature control programs.  
Please read all instructions carefully before beginning  
installation. Save them for future reference. Before removing  
any wiring from your existing thermostat, its wires must be  
labeled with their terminal designations. Ignore the color of the  
wires since they may not comply with any standard.  
SETTING THE TIME AND DAY:  
Open the door on the front of the thermostat. Rotate the dial to the  
SET DAY/TIME position. You should see the display pictured below with a  
day of the week flashing.  
G
Press UP/DOWN to change the current temperature setting. The  
HEATING / COOLING SYSTEMS  
HEATING / COOLING SYSTEMS  
4- or 5-WIRE WITH ONE TRANSFORMER  
5- or 6-WIRE WITH TWO TRANSFORMERS  
OVERRIDE indicator appears on display.  
G
G
G
Press UP to change day  
Su  
G
The OVERRIDE will be canceled at the start of the next program period,  
JUMPER  
PROVIDED  
JUMPER  
REMOVED  
of week.  
and the temperature setting will return to its programmed value.  
Thank you for your confidence in our product. To obtain the best  
results from your investment, please read these instructions and acquaint  
yourself with your purchase before installing your new thermostat. Then  
follow the installation procedures, one step at a time. This will save you  
time and minimize the chance of damaging the thermostat and the  
systems it controls. These instructions may contain information beyond  
that required for your particular installation. Please save for future  
reference.  
Press NEXT to set the time;  
it will flash.  
Press UP or DOWN to  
change time of day.  
G
An OVERRIDE may be terminated by rotating the dial, switching the  
mode to OFF, or initiating a HOLD.  
:
G
Y
W
RH RC  
B
O
G
Y
W
RH RC  
B
O
AM  
12 00  
G
Adjusting the set temperature to its program value will also cancel an  
OVERRIDE.  
TEMPERATURE HOLD  
When you are finished setting the day and time, rotate the dial to RUN to  
HOLD may be used for manual temperature control. HOLD is the  
simplest means to set and maintain a fixed temperature. It allows you to  
set and maintain a fixed temperature indefinitely in Heat or Cool without  
concern for programming. To initiate a HOLD:  
return to normal operation or to another position to continue programming.  
G
F
Y
W
RH  
RC  
R
V
5
B*  
O
G
F
Y
W
RH RC B*  
R
O
HARDWARE RESET  
This button will unlock your thermostat and read option switch positions,  
before the unit begins normal operation. It is located inside on the rear of the  
unit’s circuit board. It is a small square component labeled S8, with a white  
button at it’s center.  
COMPATIBILITY  
G
Press and release HOLD.  
C*  
6
H
4
C*  
6
H
4
V
5
G
Adjust temperature as desired with UP/DOWN.  
The PSP711CC can be used with most single stage 24 volt gas, oil or  
electric heating and air conditioning systems, single stage heat pumps, or  
gas millivolt heating systems. It cannot be used with 3 wire zone valves,  
120 volt heating systems, or multi stage heat pumps. Ask your dealer for  
other LUX thermostats to control those systems.  
G
Temperature setting will not change until the HOLD is cancelled.  
To cancel a HOLD, press and release HOLD again, rotate the dial, or  
G
SOFTWARE RESET  
Use this front panel RESET to return all software settings and programs to  
their default values. Option jumpers will be read and operation will  
correspond to their current positions. SOFTWARE RESET is disabled while  
your thermostat is locked. To assist in reprogramming, copy your programs  
into the chart provided before using SOFTWARE RESET.  
switch mode to OFF.  
All COMMON WIRES MUST BE TAPED OFF.  
If "Y" and "C" are both present, "C" is a common wire. DO NOT USE "C"! TAPE IT OFF!  
ADVANCED FEATURES  
If a "B" wire in your system is a system common, then connecting it at the "B"  
terminal may cause damage to your system. TAPE IT OFF!  
*
FEATURES  
TEMPERATURE SWING  
A thermostat works by turning your heating or cooling system on or off  
whenever the room temperature varies from the set-point temperature.  
This variation is the "swing." Your system should cycle on about 3 to 6  
times per hour. A smaller swing number increases the number of cycles,  
so room temperature is more constant. A larger swing number decreases  
the number of cycles, but saves energy in most cases.  
2 WIRE SYSTEM HEAT ONLY  
UP  
PROGRAMMING  
DOWN  
LARGE  
BACKLIT  
DISPLAY  
G
G
Y
Y
W
RH  
RC  
B
O
The PSP711CC provides four independent programming periods per day  
for HEAT, COOL, and FAN. Each is programmed separately. You can use the  
default programs or alter them to suit your schedule.  
LIGHT  
IAQ  
INDEPENDENTLY  
PROGRAMMABLE  
FAN  
JUMPER  
®
DEFAULT ENERGY STAR TEMPERATURE PROGRAM  
SWING SETTING  
As supplied from the factory, the following ENERGY STAR® approved  
program will be used for temperature control in RUN mode. This program  
and all other software settings may be restored to their default values via a  
SOFTWARE RESET.  
1. Rotate dial to the AIR FILTER position.  
2. Simultaneously press NEXT & HOLD.  
3. Use UP/DOWN keys to change swing.  
4. Choices are 1 through 9. The default is 2.  
5. Rotate the dial to the RUN position to finish.  
EASY  
PROGRAMMING  
WITH  
®
24 VOLT  
HEAT  
LUX SPEED DIAL  
MODE SWITCH  
HEAT  
TRANSFORMER  
120 V CA  
PERIOD  
Morning 6:00 AM 70°F (21°C) 6:00 AM 78°F (26°C)  
Day 8:00 AM 62°F (17°C) 8:00 AM 85°F (29°C)  
Evening 6:00 PM 70°F (21°C) 6:00 PM 78°F (26°C)  
Night 10:00 PM 62°F (17°C) 10:00 PM 82°F (28°C)  
HEAT MODE  
COOL MODE  
TEMPERATURE CALIBRATION  
1. Rotate the dial to SET DAY/TIME.  
2. Simultaneously press NEXT & HOLD.  
3. Use UP/DOWN keys to adjust the thermostats calibration by as  
much as 5°F ( 3°C).  
3 WIRE SYSTEM HEAT ONLY  
(3rd WIRE FOR FAN)  
W
RH  
RC  
B
O
G
G
G
G
G
G
G
G
G
Small elegant design  
Exclusive LUX Speed Dial®  
EL Illuminated Display  
Comprehensive Graphical  
Filter Monitor  
7 Day Programming  
Energy Star Compliant  
4 Periods Per Day  
Independent Fan Program  
Programmable (minimum)  
Fan Duty Cycle  
Nonvolatile Memory For  
All Programs And Settings  
Temporary Temperature  
Override  
Temperature Hold  
Keyboard Lockout  
LOCK  
F/C Temperature Display  
12/24 Hr Clock Display  
Adjustable Temperature  
Differential / Cycle Rate  
User Temperature Offset /  
Calibration  
5/2 minute selectable  
minimum Run/Off time provides  
short cycle and compressor  
protection  
MO  
JUMPER  
EDITING HEAT OR COOL PROGRAMS  
To prevent tampering,
This sequence of keys will lock  
and unlock the set temperature, programs  
and other settings. When the keys are locked,  
a padlock icon will be visible above the time  
and temperature display.
NITE  
You can change any preset times and/or temperatures to suit your  
schedule for each day of the week. The four periods each day are  
Morning(MORN), Day,(DAY) Evening(EVE), and Night(NITE).  
HEAT  
G
G
G
G
G
:
24 VOLT  
HEAT  
1 30 70 SET  
G
G
FAN  
HEAT  
FILTER  
TRANSFORMER  
120  
WEEKDAY PROGRAMMING  
PROGRAM  
START AT  
MO  
MORN  
1. Select HEAT or COOL with the  
mode switch.  
120 VAC  
HEAT  
2. Rotate dial to SET WEEKDAY  
PROGRAMS. You will see the display  
shown here:  
3 WIRE SYSTEM COOL ONLY  
:
SETUP OPTIONS  
G
G
AM  
6 0070  
SET  
G
Y
W
RH  
RC  
B
O
JUMPER SETTINGS  
3. The HEAT or COOL set temperature will be displayed on the right side of  
the display. The start time for the displayed period will flash to show that this  
may be changed.  
4. Use the UP/DOWN arrow keys to change the start time for this period.  
One period ends at the start time of the next period. The beginning of that  
period may not be any closer to the beginning of the next period than one  
15 minute increment.  
There are four jumpers, each controls a setting depending on its  
position.  
JUMPER  
C A U T I O N  
GAS/ELECTRIC MODE - J4  
The PSP711CC is protected against normal static electric discharges.  
To minimize the risk of damaging the unit in extremely dry weather,  
touch a grounded metal object before touching your thermostat.  
The position of this jumper controls when the thermostat requests the  
system fan to run. In HEAT mode with the gas jumper in place, the fan is  
controlled by the heating system itself. In HEAT mode with the jumper  
open or removed, the fan is controlled by the thermostat.  
24 VOLT  
COOLING  
A/C  
FAN  
COMPRESSOR  
TRANSFORMER  
5. Press NEXT to accept the displayed start time and advance to edit the  
SET TEMPERATURE.  
5MIN/2MIN MINIMUM RUN TIME - J3  
120 VAC  
INSTALLATION  
The position of J3 sets the minimum length of time that the thermostat  
must remain with Heat or Cool either on or off before it will automatically  
switch to the alternate On or Off state. This feature prevents short cycling  
and provides compressor protection for cooling units. Choices are 2 or 5  
minutes.  
6. Use the UP/DOWN arrow keys to change the flashing HEAT or COOL  
set temperature to the temperature you desire.  
7. Press NEXT to accept the displayed set temperature and advance to  
edit the start time for the next period. It will be flashing.  
8. Repeat for each of the four periods per day. When all the periods for a  
day have been set, the start time for the next morning will be displayed  
flashing so that it may be edited.  
9. Repeat PROGRAMMING for each remaining day.  
10. Rotate the dial back to RUN to accept all current values and end the  
programming session.  
Please read all instructions carefully before beginning installation.  
4 WIRE SYSTEM HEATING AND COOLING  
C A U T I O N  
G
Y
W
RH  
RC  
B
O
Turn off electricity to the appliance before installing or  
servicing thermostat or any part of the system. Do not  
turn electricity back on until work is completed.  
TEMPERATURE DISPLAY FORMAT °F/C - J2  
The position of this jumper controls whether temperature is displayed  
in degrees or C°  
JUMPER  
G
Do not short (jumper) across electric terminals on furnace or air  
conditioner to test the system. This may damage the thermostat and  
TIME DISPLAY FORMAT 12/24 HR CLOCK - J1  
The position of this jumper controls whether time is displayed in 12  
hour or 24 hour Military Time format.  
void your warranty.  
24 VOLT  
G
All wiring must conform to local codes and ordinances.  
WEEKEND  
PROGRAMMING  
PROGRAM  
A/C  
FAN  
HEAT  
HEAT/COOL  
COMPRESSOR  
G
The thermostat should be limited to a maximum of 1.5 amps;  
TRANSFORMER  
REPOSITIONING JUMPERS  
1. To program Saturday or Sunday,  
select HEAT or COOL and rotate the  
dial to SET WEEKEND PROGRAMS.  
You will see a display similar to that  
shown here:  
SU  
higher current may cause damage to the thermostat.  
To change a setting, the jumper must be repositioned and a  
HARDWARE RESET must be performed. These jumpers are located  
inside the thermostat on the rear of its circuit board. To access them,  
remove the unit from the wall by pressing up on the thumb latch at the  
bottom of thermostat and swinging the body out and away.  
120 VAC  
MORN  
G
Your thermostat is a precision instrument. Please handle it with  
HEAT  
START AT  
AM  
care.  
5 WIRE SYSTEM HEATING AND COOLING  
(2 TRANSFORMER SYSTEM)  
:
6 0070 SET  
TOOLS REQUIRED  
2. Use steps 3 - 10 described in  
WEEKDAY PROGRAMMING to  
program Saturday and Sunday.  
G
#1 Phillips screwdriver (small)  
G
Y
W
RH  
RC  
B
O
The table pictured on the right is also  
printed on the circuit board. The closed or  
shorted position is that which covers both a  
jumpers pins. To prevent its loss, a jumper  
may be placed over one pin only for the  
open positions. After settings have been  
changed, press S8, the HARDWARE RESET  
OPEN CLOSE  
J4 ELECT GAS  
J3 2MIN 5MIN  
G
Drill with 3/16-in. (4.8mm) bit  
G
Wire stripper/cutter  
COPY BUTTON  
THERMOSTAT LOCATION  
JUMPER  
REMOVED  
COPY will copy the previous day’s Heat, Cool or Fan program into the  
current day and advance to the beginning of the next day.  
J2  
C
F
On replacement installations, mount the new thermostat in place of the  
old one unless the conditions listed below suggest otherwise. On new  
installations, follow the guidelines listed below.  
J1 24HR 12HR  
24 VOLT  
HEAT  
24 VOLT  
COOL  
HEAT  
COOL  
FAN  
COOLING  
HEAT  
DAY  
PERIOD  
1. Locate the thermostat on an inside wall, about 5 ft. (1.5m) above the  
button for the changes to take effect. See HARDWARE RESET  
TIME TEMP. TIME TEMP.  
TRANSFORMER TRANSFORMER  
MORN  
DAY  
floor, and in a room that is used often.  
120 VAC  
120 VAC  
2. Do not install it where there are unusual heating conditions, such as:  
in direct sunlight; near a lamp, television, radiator, register, or fireplace;  
near hot water pipes in a wall; near a stove on the other side of a wall.  
3. Do not locate in unusual cooling conditions, such as: on a wall  
separating an unheated room; or in a draft from a stairwell, door, or  
window.  
THURS  
EVE  
HEAT  
COOL  
BATTERIES AND MAINTENANCE  
DAY  
PERIOD  
NIGHT  
MORN  
DAY  
TIME TEMP. TIME TEMP.  
SINGLE STAGE HEAT PUMP SYSTEM  
MORN  
DAY  
INSTALLING BATTERIES/ MAINTENANCE  
MON  
FRI  
SAT  
SUN  
G
Y
W
RH  
RC  
B*  
O*  
The PSP711CC requires batteries to operate your heating/cooling  
system. Replace the batteries when the battery REPLACE indicator  
appears in the display or at least once a year.  
EVE  
EVE  
NIGHT  
MORN  
DAY  
NIGHT  
MORN  
DAY  
4. Do not locate in a damp area. This can lead to corrosion that may  
shorten thermostat life.  
5. Do not locate where air circulation is poor, such as: in a corner or an  
alcove; or behind an open door.  
6. Do not install the unit until all construction work and painting has  
been completed.  
JUMPER  
ADD  
JUMPER  
1. Switch electricity to the furnace and air conditioner OFF.  
2. To access your units batteries remove the unit from the wall by  
pressing up on the thumb latch at the bottom of thermostat and swinging  
the body up and away.  
TUES  
WED  
EVE  
EVE  
NIGHT  
MORN  
DAY  
NIGHT  
MORN  
DAY  
24 VOLT  
HEAT  
HEAT  
CHANGEOVER  
HEAT  
CHANGEOVER  
COOL  
FAN  
3. Remove the used batteries.  
PUMP  
TRANSFORMER  
EVE  
EVE  
4. Install two new Energizer or DURACELL "AA" size alkaline  
batteries in the battery compartment. Observe the polarity marking  
shown in the compartment.  
5. Hang the top of the unit by the tabs at the top corners of the base,  
then snap the bottom of the unit into place. Do not use unnecessary  
force. If the body does not snap into place easily, remove the body,  
re-hang it from the tabs and try again.  
6. Turn the power back on to your heating and/or air conditioning  
system. If this is the first time you are installing batteries, the thermostat  
will display "SUN 12:00 AM".  
Within 90 seconds the thermostat will begin to display the room  
temperature alternately with the time. To correct the display, see "Setting  
the TIME and DAY," after you set the programs.  
NIGHT  
NIGHT  
*"B" OR "O" BUT NEVER BOTH  
120 VAC  
C A U T I O N  
CLEAN AIR CYCLE.  
G
Read instructions carefully before removing any wiring from existing  
The CLEAN AIR CYCLE insures that the fan runs for at least the specified  
duration each hour to circulate and filter the air in your home. Hourly fan run  
time may be specified from 9 to 60 minutes per hour."60" = ON or  
continuous run. The default minimum run time is 15 minutes total per hour.  
Additional fan run time is not called for when the heating or cooling  
requirement exceeds the threshold setting. When additional fan run time is  
required, it is met by running the fan at 20 minute intervals, for 1/3 the hourly  
run time setting.  
COMPLETING YOUR INSTALLATION  
7. See Setup Options to configure jumpers.  
8. Install two new Energizer or DURACELL "AA" size alkaline batteries at  
this time. For instructions, see BATTERIES/MAINTENANCE.  
9. Install your PSP711CC on its base.  
thermostat.  
G
Wires must be labeled before they are removed.  
G
Do not allow wires to touch each other or parts on thermostat.  
G
When removing wires from their terminals, ignore the color of the  
wires since they may not comply with any standard.  
To do this hang the top of the unit by the  
tabs on the base, then snap the bottom  
of the unit into place. Do not use  
N O T E  
Remove sticker from display.  
REMOVING THE OLD THERMOSTAT  
unnecessary force. If the body does not snap into place easily, remove the  
body, re-hang it from the tabs and try again.  
EDITING CLEAN CYCLE PROGRAMS  
1. Switch electricity to the furnace and air conditioner  
OFF; then proceed with the following steps.  
1. Turn rotary dial to SET FAN  
PROGRAM  
FAN  
MO  
MORN  
10. Turn the power back on to your heating and/or air conditioning system.  
11. Verify that the system and its fan are operating properly. When set to a  
high temperature, the heating system should provide warm air after a short  
time. Likewise, a cooling system should provide cool air after a short time.  
Usually sound from the furnace and air conditioning units can be heard while  
they are running. The rush of moving air should be heard within a short time  
after either has been started.  
PROGRAMS. You will see a display  
2. Remove cover from old thermostat. Most are snap-  
on types and simply pull off. Some have locking  
screws on the side. These must be loosened.  
3. Note the letters printed near the terminals. Attach  
labels (enclosed) to each wire for identification.  
Remove and label wires one at a time. Make sure the wires do not fall  
back inside the wall.  
similar to that shown here:  
START AT  
TECHNICAL ASSISTANCE  
2. The start time for the displayed  
period will flash to show that this may  
be changed. Use the UP/DOWN arrow  
keys to change the start time for this  
period. One period ends at the start  
:
AM  
6 00  
If you have any problems installing or using this thermostat, please  
reread the instructions carefully or visit our online technical support at  
www.luxproproducts.com. Technical assistance is available through our  
Technical Service Number. If you require assistance, please call our office  
between 8:00 a.m. and 4:30 p.m. Eastern Standard Time, Monday  
through Friday. The number is (856) 234-8803.  
time of the next period. The beginning of that period may not be any closer  
to the beginning of the next period than one 15 minute increment.  
3. Press NEXT. The minimum run time flashes to show that it may be  
edited.  
12. Your installation is now complete.  
4. Loosen all screws on the old thermostat and remove it from the wall.  
MOUNTING THE PSP711CC  
1. Strip insulation leaving 3/8 in.  
(9.5mm) bare wire ends and clean off  
any corrosion.  
N O T E  
If you have an electric system and the blower does not operate after  
installation, find the electric/gas heat jumper on the back of the body.  
Move the jumper to ELEC and perform a HARDWARE RESET.  
4. To change the minimum run time for this period, use the UP/DOWN  
keys.  
WARRANTY  
2. Fill wall opening with non-  
combustible insulation to prevent drafts  
from affecting the thermostat.  
5. Press NEXT to accept the setting and progress to the next period.  
6. Repeat for each of the four periods per day.  
7. When all the periods for a day have been set, the start time for the next  
morning will be flashing so that it may be edited.  
8. Repeat programming for each remaining day.  
9. Rotate the dial back to RUN to accept all current values and end the  
programming session.  
Limited Warranty: If this unit fails because of defects in materials or  
workmanship within one year of date of original purchase, LUX will, at its  
option, repair or replace it. This warranty does not cover damage by  
accident, misuse, or failure to follow installation instructions. Implied  
warranties are limited in duration to one year from date of original  
purchase. Some states do not allow limitations on how long an implied  
warranty lasts, so the above limitation may not apply to you. Please return  
malfunctioning or defective units to the participating retailer from which  
the purchase was made along with proof of purchase. Please refer to  
Technical Assistance” before returning your thermostat. Purchaser  
assumes all risks and liability for incidental and consequential damage  
resulting from installation and use of this unit. Some states do not allow  
the exclusion of incidental or consequential damages, so the above  
exclusion may not apply to you. This warranty gives you specific legal  
rights and you may also have other rights which vary from state to state.  
Applicable in the U.S.A. only.  
OPERATING INSTRUCTIONS  
The PSP711CC alternately displays the current time and the room  
temperature. It also displays the day of the week and the current program  
period, MORN, DAY, EVE, or NITE. Set temperatures are indicated in the  
right side of the display.  
C A U T I O N  
Be careful not to drop the unit or disturb electronic parts.  
Leave the door closed while the body is being removed  
from the base.  
You can make program or setting changes with the thermostat body on  
the wall, or conveniently removed from its base plate.  
AIR FILTER USAGE MONITOR  
The AIR FILTER USAGE MONITOR counts the number of days a filter  
has been in use. In RUN mode, the display shows the remaining filter life  
via a bar-graph, and the number of DAYS LEFT in the 3 digit filter display  
area.  
SYSTEM MODES:  
3. Remove the body from the thermostat’s base by pressing the thumb  
latch at the bottom center of the unit and swinging the body away.  
The Mode switch has three positions HEAT, OFF, and COOL. In the winter,  
set the system switch to HEAT to control your heating system. In the  
summer, set the switch to COOL to control your air conditioner. In spring and  
fall or when the windows are open, you can set the switch OFF.  
CHANGE FILTER will appear when the days remaining has reached  
zero and the filter should be changed. DAYS OVER is indicated when a  
filter change is past due. The filter counter can count up for days over  
from 000 to 999 days.  
N O T E  
If you are mounting the base to soft material like plasterboard or if you  
are using the old mounting holes, the screws may not hold. Drill a 3/16  
in. (4.8mm) hole at each screw, and insert the plastic anchors provided.  
UP/DOWN/CHANGE ARROW KEYS:  
There are two arrow keys just right of the unit’s display. They are used to  
adjust set temperatures and change other settings.  

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