Uni-Line PerfectSense PS3210 Series User manual

Programmable Thermostat
Owners Manual
Model: PS3210 Series
FEATURES
Structure of thermostat and explanaon of the keypads
We are pleased you have selected our wall thermostat.
Our products are manufactured to high quality standards
and are designed for years of service.
Read This Before Installing Thermostat
OPERATION
YOUR THERMOSTAT FUNCTIONS WITH
Descripon
Heat Pump (No Auxiliary or Emergency Heat) Yes
Heat Pump (With Auxiliary or Emergency Heat) Yes
Standard Heat & Cooling Systems Yes
Two Stage Heat & One Stage Cool Yes
Standard Heat Only Systems Yes
Millivolt Heat Only Systems – Floor or Wall Furnaces Yes
Standard Central Air Condioning Yes
Gas or Oil Heat Yes
Electric Furnace Yes
Hydronic (Hot Water) Zone Heat-2 Wires Yes
Hydronic (Hot Water) Zone Heat-3 Wires No
This Thermostat will NOT control 110/220 Volt systems.
IMPORTANT
Read the enre installaon secon of this Owner’s Manual
thoroughly before you begin to install or operate your
thermostat.
REMOVE THE MYLAR LABEL FROM THE LCD DISPLAY
WINDOW.
INSTALLATION
All programming is normally performed at your
thermostats locaon.
ARMCHAIR PROGRAMMING
You can program your thermostat before installaon by
inserng the baeries and following the instrucons
starng with the installer/conguraon menu. This can be
done while you relax in your favorite chair and is a very
good way to familiarize yourself with all the funcons of
your thermostat.
The following me and temperature sengs 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)
410:00 pm 60°F(16°C) 82°F(28°C)
by Uni-Line®
COMPRESSOR PROTECTION
The thermostat provides a 4-minute delay aer shung
o the heang 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 heang system control. It does not provide a delay
when there are power outages. You can select the funcon
on or o at the conguraon.
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 automacally shut down in
Heat mode if the temperature rises above 95°F (35°C), and
automacally shut down in Cool mode if the temperature
drops below 45°F (7°C).
NOTE: If the thermostat measures 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
Whenever the main power is interrupted or fails, the
backup baery power will maintain the current me. This
thermostat also has a permanent memory that will retain
your program seng through power outages.
POWER SUPPLY
The thermostat is powered by 24V AC and has baery
backup.
BATTERY WARNING
Fresh alkaline baeries should provide about one year
of service. When the baeries become weak, BATT will
alternate on the display with the current me. When this
message occurs, install 2 new AA baeries. You have
approximately 1 minute to change the baeries and
keep the thermostat’s clock and program sengs. Once
the baeries have become too weak to ensure proper
operaon, your system will be turned o, and the display
will be cleared except for BATT ashing on the LCD display.
CAUTION: Once the BATT display occurs, the thermostat
is shut down, and your system will no
longer operate. In this condion, there is no
temperature control. NOTE: The backlight will
not funcon when the thermostat is in low
baery condion.
NOTE: If you plan to be away from the premises over 30
days, we recommend that you replace the old baeries
with new alkaline baeries prior to leaving.
INSTALLATION
What You Need:
This thermostat includes two #8 sloed screws and two
wall anchors for mounng. To install your thermostat, you
should have the following tools and materials.
• Sloed screwdriver(s)
• Small Phillips screwdriver
• Hammer
• Electric drill and 3/16” bit
• Two1.5V (AA) size alkaline baeries (included)
CAUTION:
To prevent electrical shock and/or equipment damage,
disconnect electric power to system at main fuse or
circuit breaker box unl installaon is complete.
Before removing wires from old thermostat, label each
wire with the terminal designaon it was removed from.
1. Shut o electricity at the main fuse box unl
installaon is complete. Ensure that electrical power is
disconnected.
2. Remove old thermostat. A standard heat/cool
thermostat consists of three basic parts:
a.
The cover, which may be either a snap-on or hinge type.
b. The base, which is removed by loosening all screws.
c. The switching subbase, which is removed by
unscrewing the mounng screws that hold it on
the wall or adapter plate.
3. Remove the front cover of the old thermostat. With
wires sll aached, remove wallplate from the wall. If
the old thermostat has a wall mounng plate, remove
the thermostat and the wall mounng plate as an
assembly.
4. Idenfy each wire aached to the old thermostat.
5. Disconnect the wires from the old thermostat one at
a me.
DO NOT LET WIRES FALL BACK INTO THE WALL.
6. Install new thermostat using the following procedures.
WARNING
Do not use on circuits exceeding specied voltage. Higher
voltage will damage control and could cause a shock or re
hazard. Do not short out terminals on gas valve or primary
control to test. Incorrect wiring will damage thermostat
and could cause personal injury and/or property damage.
Selector Switches
Figure 1. Electric/Gas Switch (Fan Opon)
This thermostat is congured from the factory to operate
a heat/cool, fossil fuel (gas, oil, etc.), forced air system.
It is congured correctly for any system that DOES NOT
require the thermostat to energize the fan on a call for
heat. If your system is an electric heat or heat pump
system that requires the thermostat to turn on the fan
on a call for heat, locate the ELEC/GAS switch on the back
of the thermostat (see Figure 1) and switch it to the ELEC
posion. This will allow the thermostat to energize the
fan immediately on a call for heat. If you are unsure if the
heang/cooling system requires the thermostat to control
the fan, contact a qualied heang and air condioning
service person. When the thermostat is congured for heat
pump, the thermostat will always power the circulator
fan on a call for heat in the Heat mode. The ELEC/GAS
switch must be set to match the type of auxiliary heat your
system uses for proper operaon in the Emergency mode.
All wiring diagrams are for typical systems only. Refer to
equipment manufacturer’s instrucons for specic system
wiring informaon.
Aach Thermostat Base to Wall
1. Remove the packing material from the thermostat.
Gently pull the cover straight o the base. Forcing or
prying on the thermostat will cause damage to the unit.
2. Connect wires beneath terminal screws on base using
appropriate wiring schemac (see Figures 2 through 6).
3. Place base over hole in wall and mark mounng hole
locaons on wall using base as a template.
4. Move base out of the way. Drill mounng holes.
5. Fasten base loosely to wall, as shown in Figure 1,
using two mounng screws. Place a level against
boom of base, adjust unl level, and then ghten
screws. (Leveling is for appearance only and will not
aect thermostat operaon.) If you are using exisng
mounng holes, or if holes drilled are too large and do
not allow you to ghten base snugly, use plasc screw
anchors to secure subbase.
6. Push excess wire into wall and plug hole with a re
resistant material (such as berglass insulaon) to
prevent dras from aecng thermostat operaon.
Figure 2. Thermostat base
Figure 3. Typical wiring diagram for single transformer
heat pump systems
Figure 4. Typical wiring diagram for two transformer heat
pump systems with NO safety circuits

Figure 5. Typical wiring diagram for two transformer heat
pump systems with safety circuits in BOTH systems
Figure 6. Typical wiring diagram for single
transformer mul-stage systems
Heat Pump Terminal Outputs
Refer to equipment manufacturer’s instrucons for
specic system wiring informaon. You can congure the
thermostat for use with the following heat pump system
types: HEAT PUMP TYPE 1 1. Single stage compressor
system; gas or electric backup. This thermostat is designed
to operate a single-transformer system. If you have a
two-transformer system, cut and tape o one transformer.
If transformer safety circuits are in only one of the systems,
remove the transformer of the system with NO safety
circuits. If required, replace remaining transformer with
a 75VA Class II transformer. Aer disconnecng one
transformer, the two commons must be jumpered together.
Use the terminal output informaon below to help you
wire the thermostat properly for your heat pump system.
Aer wiring, see CONFIGURATION secon for proper
thermostat conguraon.
THERMOSTAT TERMINALS (HEAT PUMP)
SYSTEM Heat Pump 1
L Malfuncon
C* 24 Volt (common)
R24 Volt Emergency (hot)
E/W1 Emergency Mode 1st stage
W2 HP 1 and Emergency 2nd stage
Y1 Heat and Cool mode 1st stage (compressor)
GBlower/Fan Energized on call for Heat and Cool
Set GAS/ELEC switch for Emergency mode
OEnergized in Cool Mode
B Energized in Heat Emergency mode
CHECK THERMOSTAT OPERATION
Note: To prevent stac discharge problems, touch side of
thermostat to release stac build-up before touching
any keys.
If at any me during tesng your system does not operate
properly, contact a qualied service person.
Fan Operaon
If your system does not have a G terminal connecon, skip
to Heang System.
1. Turn on power to system.
2. Move Fan switch to ON posion. The blower should
begin to operate.
3. Move Fan switch to AUTO posion. The blower should
stop immediately
Heang System
1. Move System switch to Heat mode. If the auxiliary
heang system has a standing pilot, be sure to light it.
2. Press to adjust thermostat seng to 1°F/1°C above
room temperature. The heang system should begin to
operate. The display should show STG1. However, if the
setpoint temperature display is ashing, the compressor
lockout feature is operang (see Conguraon Menu,
item 5).
3. Adjust temperature seng to 3°F/3°C above room
temperature. If your system conguraon is set at MS2,
HP2 or HP1, the auxiliary heat system should begin to
operate and the display should show STG1+2.
4. Press to adjust the thermostat below room
temperature. The heang system should stop operang.
Emergency System
EMER bypasses the heat pump to use the heat source
wired to terminal E on the thermostat. EMER is typically
used when compressor operaon is not desired, or you
prefer back-up heat only.
1. Press System switch to select Heat mode, then press
EMER key. EMER will show on the display.
2. Press to adjust thermostat seng above room
temperature. The auxiliary heang system will begin to
operate. The display will show STG1 EMER to indicate
that the auxiliary system is operang.
3. Adjust temperature seng to 2°F/2°C above room
temperature. The auxiliary heat system should begin to
operate and the display should show STG1+2.
4. Press to adjust the thermostat below room temperature.
The auxiliary heang system should stop operang.
Cooling System
1. Move System switch to select the Cool mode.
2. Press to adjust thermostat seng below room
temperature. The blower should come on immediately
on high speed, followed by cold air circulaon. The
display should show STG1.
3. Press to adjust the temperature seng above room
temperature. The cooling system should stop operang.
CONFIGURATION MENU
INSTALLER/CONFIGURATION MENU
Step Press
Buon
Displayed
(Factory
Default)
Press
down key
to select
Comments
1FMS 2 SS1, HP2,
HP1
Selects Single
stage, Mul-stage
or Heat Pump
(Single stage or
2-stage) System
Conguraon
2F(DIFF)2 1,3 DIFF (one stage)
3F(BLIT)on o BackLight
4 F (SP2)2 1,3 DIFF (Two Stage)
5 F (TEMP)F C
Selects
temperature
display °F or °C
6 F HOUR(12) 24
Selects me format
display 12 hours or
24 hours
7 F COMP(OFF) ON Selects Compressor
Lockout OFF or ON
8 F FACT(0) 1,2 Select 1 to reset to
factory defaults.
The conguraon menu allows you to set certain
thermostat operang characteriscs to your system
or personal requirements. Set System switch to OFF,
then simultaneously press up and down keys to enter
conguraon menu. The display will show the rst item
in the conguraon menu. The conguraon menu table
summarizes the conguraon opons. An explanaon
of each opon follows. Press F key to change to the next
menu item. To exit the menu and return to the program
operaon, press Hold/Run key. If no keys are pressed
within een seconds, the thermostat will revert to
normal operaon.
1. Single Stage, Mul-stage or Heat Pump System
Conguraon This control can be congured for Heat
Pump or two stage heat/one stage cool mul-stage
operaon. The display indicates MS 2 (default for
mul-stage mode) in the display. The mul-stage
conguraon can be toggled to SS1, or HP1 by pressing
the up or down key. In mul-stage conguraon, EMER
mode is not used. In this model, the HP2 is not used.
2. Fast or slow cycle selecon (one stage)
3. Select backlight funcon OFF or on
4. Fast or slow cycle selecon (two stage)
5. Select °F or °C readout. When you change this
parameter, the programming returns to default.
You have to set the program again.
6.
Selects me format to display in 12-hour or 24-hour clock
7. Select compressor lockout (COMP OFF or ON) Selecng
COMP ON will cause the thermostat to wait 4 minutes
before turning on the compressor if the heang and
cooling system loses power. It will also wait 5 minutes
minimum between cooling and heang cycles. This is
intended to help protect the compressor from short
cycling. Some newer compressors already have a me
delay built in and do not require this feature. Your
compressor manufacturer can tell you if the lockout
feature is already present in their system. When the
thermostat compressor me delay occurs it will ash
the setpoint for about four minutes.
8. Select 1 to reset to factory defaults.
Seng Time And Day
• Remove the mylar label covering the
LCD display window before operang
thermostat.
• Inial display aer power-up. The
temperature will update aer a few
seconds.
• During Time and Day Seng mode, the
temperature and program display will
go blank.
• Press and hold HOUR to rapid advance
to the current hour. Tap to advance one hour at a
me. Note the AM/PM indicator, as the display will
cycle through 24 hours.
• Press and hold MIN to rapid advance to the current
minute.
• Tap to advance one minute at a me.
• Tap DAY to advance one day at a me.
• When nished press HOLD/RUN to return to normal
mode. Aer 15 seconds, the thermostat will return to
normal automacally.
Auto Programming
Studies conducted by the Department of Energy
esmate that seng your thermostat back 10°F
(6°C) for two 8-hour periods during winter can
reduce your fuel bill by as much as much as
33%. Seng your thermostat up 5°F (3°C) for
two 8-hour periods during summer can reduce
your fuel bill up to 25%.
Your thermostat is capable of holding up to 4
separate programs for each day of the week.
You can program all weekdays, Monday to Friday, to the
same 4 programs as shown in the table, or each weekday
can have a dierent set of 4 programs. Similarly weekend
programs, (Saturday and Sunday) can be the same 4
programs or each weekend day can have a dierent
set of 4 programs.
Your thermostat is pre-programmed to be energy
eciency. Note that it is easier to modify these programs
than to program the thermostat manually.
• Press once. During Auto Programming, the display
will change as shown.
• The thermostat will be programmed
for all 7 days of the week as shown
below.
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)
410:00 pm 60°F(16°C) 85°F(28°C)
• Refer to Manual Programming for entering or changing
the programs.
PROGRAMMING
Before programming or changing programs, use this
Personal Program Schedule to determine which mes
and temperature sengs will best sasfy both your
comfort and energy saving requirements. Use a pencil so
you can revise yours records each me you change your
temperature sengs.
Heang
DAY Program 1 Program 2 Program 3 Program 4
Mon Time
Temp
Time
Temp
Time
Temp
Time
Temp
Tue Time
Temp
Time
Temp
Time
Temp
Time
Temp
Wed Time
Temp
Time
Temp
Time
Temp
Time
Temp
Thu Time
Temp
Time
Temp
Time
Temp
Time
Temp
Fri Time
Temp
Time
Temp
Time
Temp
Time
Temp
Sat Time
Temp
Time
Temp
Time
Temp
Time
Temp
Sun Time
Temp
Time
Temp
Time
Temp
Time
Temp
Cooling
DAY Program 1 Program 2 Program 3 Program 4
Mon Time
Temp
Time
Temp
Time
Temp
Time
Temp
Tue Time
Temp
Time
Temp
Time
Temp
Time
Temp
Wed Time
Temp
Time
Temp
Time
Temp
Time
Temp
Thu Time
Temp
Time
Temp
Time
Temp
Time
Temp
Fri Time
Temp
Time
Temp
Time
Temp
Time
Temp
Sat Time
Temp
Time
Temp
Time
Temp
Time
Temp
Sun Time
Temp
Time
Temp
Time
Temp
Time
Temp
Manual Programming
• Your thermostat can be programmed for weekdays and
weekends. Use Weekday/Weekend Programs to enter
or revise programs to match your Personal Program
Schedule. The same steps are used when entering
programs for the rst me 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 me can be set in 10-minute increments,
and remains the same for both Heat and Cool programs.
2. The program temperature can be set in increments of
1°F (1°C).
3. The heat setpoint cannot be set higher than the cool
setpoint, and the cool setpoint cannot be set lower than
the heat setpoint.
.

4. If the system selector is in AUTO mode, the current
operang mode will be used for programming.
5. Aer 15 seconds without a key press, the thermostat
will return to normal display mode.
6. When seng the program me, note the AM/PM
indicator.
7. With the Auto Recovery feature enabled, you do not
need to set your comfort program mes early. Auto
Recovery will turn your system on so that the room is
comfortable at the program me.
Weekday/Weekend Programming
Weekday Programs Display Reads
• Normal display of me, temperature, and
day of the week.
Step 1
• Selects days Mon. to Fri. for same set
of 4 programs each day.
Step 2
• Program indicator (1) is displayed.
• 68°F is displayed.
• Mon. to Fri. is displayed.
Step 3
• Press and hold unl 6:00 is displayed.
• Note AM/PM
Step 4
• Press once to change temperature to 69°F.
• Weekday program 1 is complete.
• Press PROG to move to program 2, 3, and 4 and
follow the same steps.
Use to insert or change me and
temperature of other programs.
• Selects weekend days Sat. and Sun.
for same set of 4 programs each
weekend day.
• Follow steps 2-4 to enter programs.
Similar to weekday programming.
Use to insert weekend programs.
Individual Day Programming
To program each individual day separately by a dierent
set of programs, rst select day by displaying the day of
program, then insert the desired mes and temperatures.
Press Display
Reads
• Mon. to Fri. are selected. Mon. to Fri.
will have same programs.
• Sat. to Sun. will have same programs.
•
Mon. is selected, program for Mon. only.
Use to enter programs for Monday.
• Similarly Tue. to Sun. can be selected.
Display the day to be programmed and use
to enter programs
NOTE: Another approach to programming is to rst
program all weekdays Mon. through Fri. and Sat. and
Sun. as same programs. Then, display and change the
programs of only those days which will have dierent
programs.
Reviewing Programs
You may want to review the programs to see that the
sengs are compable with your lifestyle.
• Normal display of current me, day of week
temperature, and day of week.
• 1st weekday program is displayed.
• Program indicator (1) appears.
• Mon to Fri indicaon appears.
• Connue pressing to view each day.
• Connue pressing to view each period.
If you are armchair programming the thermostat, turn the
System Selector to the OFF posion
Reviewing the Current Temperature Seng
Current me 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 the operang mode
of the thermostat. You may select COOL, OFF,
HEAT, or AUTO. In order to take full advantage of this
thermostat’s features, we recommend using the AUTO
mode. Refer to the Auto Season Changeover informaon
for using this feature.
NOTE: Anyme you install or remove the thermostat from
the wallplate, slide the System Selector to the OFF posion
to prevent the possibility of a rapid system on-o.
Fan Switch
The Fan switch should normally be set in
the AUTO posion The fan will be turned on
along with normal operaon of your system.
In a normal gas or oil furnace, the fan will be turned on by
your furnace aer its warm-up delay. For electric heat, air
condioning, and heat pump operaon, the fan will turn
on with the system. To run the fan connuously, slide the
Fan switch to the ON posion.
Temporary Manual Override
To temporarily change the current set
temperature without aecng 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 automacally.
• The current program number will ash 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.
• 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 thermostat is in Temporary Manual
Override. Refer to the Auto Season Changeover feature for
more informaon.
Permanent Override or a Designated Day Override
To hold your Manual Override for vacaon or unl a
Designated Day.
• 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
instrucons above to change the Permanent
Manual Override temperature.
• You can conrm the setpoint by pressing HOLD/
RUN 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/Designated Day
Override instrucons above to change
the Permanent Manual Override temperature.
To End Override
Under Permanent Override press hold/return key twice.
Under a Designated 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 informaon.
Auto Season Changeover
When the System Selector is in AUTO posion, the
thermostat will automacally change between heang
and cooling systems, depending on your program. We
recommend keeping your programmed heang 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. If your heang and
cooling programs have setpoints that are close, there is
a built-in program to prevent the thermostat from going
into Temporary, Designated Day Override, or Permanent
Override, as these overrides are energy saving sengs.
Auto Season Changeover will sll funcon in Home Today
mode, as this is a comfort seng.
For example, you may have the following temperatures
programmed at a given me: Heat Set Temp=68°F, Cool Set
Temp=78°F.
If the room temperature rises above 78°F, then the
thermostat will automacally change to cool mode and
turn on the air condioner.
Likewise, the thermostat will automacally change to heat
mode and turn on heat when the room temperature falls
below 68°F.
HOME TODAY
This feature allows you to quickly and temporarily override
your energy saving program seng on days when you are
normally away from home with one key press.
• Press to enter the Home Today override.
When in Home Today override, the
thermostat will use the previous manual
override temperature setpoint for the
remainder of the day.
• The display will alternate between HOME and the
current me.
• When pressed during the day, the thermostat will
remain in Home Today mode unl the rst program
of the next day.
• If the system is changed between Heat and
Cool modes (either manually or by Auto Season
Changeover) during the Home Today Override
period, the setpoint temperature will be
automacally update. It will automacally change
from the lowest cool program setpoint to the
highest heat program setpoint.
• Press to exit Home Today mode before the schedule
ending me. 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 instrucons. Manually changing
the set temperature while in Home Today mode will
not aect the Home Today ending me, however,
the set temperature will not change automacally
with a manual or automac change between
heang and cooling.
Energy Monitor
• The Energy monitor feature measures
and stores the amount of me the
heang and air condioning system
operates. Usage can be displayed 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 setback 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
me 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.
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 lter has been in use. To
maximize your system’s performance and energy
eciency, change or clean your lter regularly.
• When the total system run me for heat and
cool reaches 500 hours, you need to clean or
change your system’s lter. FILT will connue
to ash unl the counter is set back to zero.
• Press FILTER to review total lter usage. The display will
blink FILT, then show the Filter Monitor counter. Aer 15
seconds, 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.
• Aer changing or cleaning the system lter, press and
release the Filter Buon. The usage hours will display on
the screen. Reset the display by pressing and holding the
Filter Buon again unl the hours displayed are zero (0).
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 program
period. Auto Recovery works in both Heat and
Cool modes.
• When the thermostat is in Auto Recovery mode, the
display will alternate RECO with me, and the program
indicator will ash
• Auto Recovery can be disabled by sliding the Recovery
switch on the circuit board to disable.
• Auto Recovery will not operate if Permanent Hold or
Temporary Hold is in operaon.
• 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 unl the next program period starts
(an excepon is that if me or program is changed then
the thermostat will check Auto Recovery condions
immediately).
•
Auto Recovery will be canceled and change to next period.
• 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
the hold/run key for 3 seconds. The keyboard is locked
when LOCK appears on the display.
• When all keys are locked, LOCK will appear on the display
for 1 second any me a key is pressed.
Backlighng
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 aer 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 Baery warning
condion, the backlight will not operate. Replace with 2
new AA alkaline baeries to restore the Backlight funcon.
Low Baery Warning
Your thermostat has a two-stage lower baery
warning system. When the baeries are rst
detected to be weak, the rst stage low baery
warning is indicated by BATT ashing on the
LCD display. Replace the baeries with 2 new
AA alkaline baeries.
When the baeries become too weak for normal
operaon, the thermostat enters the second stage low
baery warning which shuts down the thermostat. In
this condion, BATT ashes alone on the display, and the
thermostat will turn your system o. Your system will
remain o unl the baeries are replaced.
NOTE: The thermostat will sll keep the current Set
Temperature and Filter run me in memory unl new
baeries are installed. Aer conrming that new baeries
have been inserted, the thermostat will return to normal
operaon.
Error Mode
If the thermostat is unable to control your
system due to an unexpected baery problem,
the thermostat will enter Error Mode. In this
condion, the thermostat ashes E1, E2, E3 or
E4 on the LCD display, and shuts o your system.
To correct this problem, replace the baeries
with 2 new AA alkaline baeries, even if you have recently
replaced them. Press the reset buon once with a small
pin and hold for two seconds then reprogram.
If Error Mode returns, please contact us for further
informaon.
Warning Mode
If the Malfuncon Input (L) from the heat pump
is acve, the thermostat ashes E5 on the LCD
display.
Auto Cut O
Your thermostat will automacally shut down in Heat
mode if the room temperature rises above 95°F (35°C).
It will shut down in Cool mode if the room temperature
drops below 40°F (4°C).
Note that if your system has malfunconed and no longer
responds to thermostat controls, the Auto Cut-O will have
no eect.
Two Year Limited Warranty
Robertshaw warrants to the original contractor installer or
to the original consumer user that each new PerfectSense
Product shall be free from defects in materials and
workmanship under normal use and service for a period
of two (2) years from the date of manufacture (“Warranty
Period”). If any Product fails within the applicable Warranty
Period, Robertshaw shall, at its sole opon, repair or
replace the Product, provided that the Product is returned
to Robertshaw facility or designated agent within the
Warranty Period, with transportaon charges prepaid, and
that the Product, upon examinaon by Robertshaw, is found
to conform to this warranty. The above warranty does not
apply to: i) baeries; ii) improper installaon; iii) Products
that have been damaged, misused, neglected, mishandled,
or altered in any manner whatsoever, and/or; iv) defects or
damage that result from use of the Product in other than
its normal and customary manner or in any manner not
in accordance with Robertshaw recommendaons and/or
instrucons. Any and all costs of labor, thermostat removal,
or reinstallaon are not covered under this warranty and
shall be the sole responsibility of the consumer or installer,
as applicable.
THE FOREGOING WARRANTY IS IN LIEU OF AND
EXCLUDES ALL OTHER WARRANTIES, WHETHER VERBAL
OR WRITTEN, EXPRESS OR IMPLIED INCLUDING, EXCEPT
TO THE EXTENT PROHIBITED BY APPLICABLE LAW, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT
SHALL ROBERTSHAW BE LIABLE TO CONSUMER,
CONTRACTOR OR ANY THIRD PARTY FOR ANY
CONSEQUENTIAL, INCIDENTAL, SPECIAL OR PUNITIVE
DAMAGES ARISING FROM OR RELATING TO USE OF
THE PRODUCT INCLUDING, BUT NOT LIMITED TO, LOSS
OF GOODWILL, LOSS OF PROFIT OR REVENUE, AND
PROPERTY DAMAGE, REGARDLESS WHETHER SUCH
LOSS OR DAMAGE IS BASED IN CONTRACT, WARRANTY,
TORT, NEGLIGENCE, STRICT LIABILITY, INDEMNITY,
PRODUCT LIABILITY, OR OTHERWISE AND EVEN IF
ROBERTSHAW HAS BEEN ADVISED OF THE POSSIBILITY
OF SUCH DAMAGES.
TROUBLESHOOTING
Problem Soluon
Scrambled or double
display
(numbers over numbers)
1. Remove clear mylar scker.
No display 1. Check baery connecons and
baeries.
2. Press the reset buon once with
a small pin and hold for two
seconds then reprogram.
Enre display dims 1. Replace baeries.
Program does not change
at your desired sengs
1. Check that the me is set
properly to AM or PM.
2. Check that the thermostat is not
in HOLD or Home Today mode.
3. Check for the correct day
sengs.
Auto fan does not
turn on properly
1. Move ELEC/GAS selector to
opposite posion.
2. There may be as much as a 4
minute delay before the heat or
cool system turns on. Wait and
check. (Compressor protecon
delay)
3. Check your circuit breakers
and switches to ensure there is
power to the system.
4. Replace baeries.
5. Make sure your furnace blower
door is closed properly.
6. Check the posion of the Furnace
or Heat Pump selector switches:
Normal/O/B.
Errac display Press the reset buon once with a
small pin and hold for two seconds
then reprogram.
If unit connues to
operate in the OFF
posion
1. Replace unit.
Thermostat permanently
reads E1, E2, E3, E4
1. Replace unit.
If you experience any other problems, contact Technical Support
service at: [email protected] or (800) 445-8299.
Customer Service Telephone 1.800.304.6563
Customer Service Facsimile 1.800.426.0804
Robertshaw®, Uni-Line® and PerfectSenseTM are trademarks of Robertshaw,
its subsidiaries and/or affiliated companies. All other brands mentioned
may be the trademarks of their respective owners.
For Technical Service
Telephone 1.800.445.8299
www.uni-line.com
www.robertshaw.com
©2015 Robertshaw
10/15 – 352-00240-001
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