SunStat 500670 User manual

5
sensor
2. Installation
Remove the Thermostat Face
1.RemovethethermostatFrontModule
fromthePowerModulebyopeningthedoor
andlooseningthescrew.
2. Pulloutwardnearthebottomonthe
FrontModuleandliftoff.
Prepare the Wiring
1.Findalocationforyourthermostat.Itis
suitableforindooruseonly,oninsulatedor
uninsulatedwalls.Locateitabout41⁄2feet
to5feetabovetheooronaninsidewall.Makesureitiswellventilatedand
notlocatedinaconnedspacesuchasasmallclosetorcabinet.Avoidplacing
itnearotherheatsourcessuchashot-waterpiping,heatduct,wall-mount
lighting,anddirectsunlighttohelppreventadverselyaffectingthethermostat.
2. Turnoffthepowertotheoorwarmingsystematthemaincircuitpanel
beforedoinganyelectricalwork.
3. Aqualiedelectricianshouldrunadedicatedcircuitfromthemaincircuit
paneltothethermostatlocation.
4. Ifadedicatedcircuitisnotpossible,youmaytapfromanothercircuitinthe
room.Makesurethereisenoughloadcapacity(amps)tohandletheaddition
ofyouroorwarmingsystem,andthatitisNOTwiredinserieswithanyother
device,includingotherGFCIs.
Owner’s Manual
Your new SunStat Pro thermostatisdesignedtocontrolthevoltageto
eithera120VACor240VACresistiveoorwarmingsystem.
Pleasefollowthismanualforcompleteinstallationandoperationinstructions.
Ifyouhaveanyquestionsorcomments,trycallingTechnicalSupportat
1-888-432-8932.
 CAUTION:Makesureyouarequaliedandarefamiliarwithhousewiring.
Thisisalinevoltagedevicethatcouldcauseseriousinjuryordamageif
improperlyinstalled.
Connect Wires
1. Matchandconnectthetwowires
marked“LINE1”and“LINE2”tothe
powersupplywiresusingthewirenuts
provided.
2. Gentlytugonthewirestomakesure
theyaresecure,otherwiseawirecould
loosenandcausefailure.
3. Overwrapthewirenutswithelectrical
tapetobettersecurethemtothewires.
4. Matchandconnectthetwowires
marked“LOAD1”and“LOAD2”tothe
oorwarmingsystemleadwiresand
securethesewiresthesameway.
5. Connectthehousegroundwiretothe
greenorbareleadwire(s)ofyouroor
warmingsystem.
6. Inserttheendsoftheoorsensor
wireintothe“SENSOR”terminals(1and
2)andtightenthescrews.Thereisno
polarity,soitdoesnotmatterwhichwire
endgoesintowhichterminal.
 CAUTION:Beforecontinuing,make
sureyourpowersupplyvoltagematches
thevoltageratingofyouroorwarming
system.
Connecting240Vtoa120Voorwarm-
ingsystemwillcauseoverheatingand
damagetothesystemandmaydamage
thecontrol,otherwiring,oorcoverings,
etc.
Remote Control
1. Ifyouwanttoconnectyourthermostattoaremotecontroldevice,suchas
ahomeautomationsystem,rstmakesurethattheremotedevicehasa“dry
contact”output(anun-energizedswitch,suchasthecontactsonarelay).Many
homeautomationsystemscomewithsuchanoutputthatopensorclosesat
speciedtimes.
2. Pull2-conductorwire,size18-to24-gage,throughthewallfromtheremote
device,intothiselectricalbox.
3. Connectthewireendsintothe“SETBACK”terminals(5and6)andtighten
thescrews(nopolarity).

SunStat Relays
1. IfyouwanttouseyourthermostattodriveaSunStatRelay(s)(askyourdealer
aboutthisconvenientwaytocontrollargersystemswithonethermostat),rst
readandfollowtheinstructionsfortheSunStatRelaythoroughly.
2. Pull2-conductorwire,size18-to24-gage,throughthewallfromtheSunStat
Relay,intothiselectricalbox.Thiswiremaybeupto100feet(30m)inlength
fromthethermostattothelastSunStatRelayinstalled.
3. Connectthewireendsintothe“RELOUT”terminals(3and4)andtightenthe
screws(ObservepolarityofthewireswhenconnectingtotheSunStatRelay).

Mount the Thermostat
1. Carefullyfoldandpressthewiresbackintotheelectricalbox.Donotuse
thethermostattopushthemin,asthismaycauseconnectionstoloosenand
possiblefailure.
2. SecurethethermostatPowerModule
intotheboxwiththemountingscrews
provided.
3. CarefullysnaptheFrontModuleonto
thePowerModule.
4. Tightenthescrew.
5. Switchonthepoweratthemaincircuit
panel.
NOTE to contractors:After installing the
thermostat, be sure to:
a.Do a Quick Setup (section 3),
b. Temporarily override the setpoint
SunStatPro
ProgrammableThermostat
Model500670
3. PresstheHOLD/RETURNbuttonorwait15secondsandthethermostatwill
returntothenormaloperatingmode,savingyourselection.Thethermostat
willnowdisplayaP1,P2,P3,orP4atthebottomright.
3. Quick Setup
On/Off Switch
Yourthermostatshouldbeturnedoffwhenit
isrstinstalled.ThedisplaywillshowOFFand
thetimeandday.
1.Slidetheon/offswitchtotheupperposition,
turningthethermostaton.Thedisplaywill
showthetimeandday,temperatures,andother
information.
2. Toturnthethermostatoffanytime,slidethe
on/offswitchtothelowerposition.Noheating
willoccurandallprogrammingisretained.
Change Format Between °F / 12-hour and °C / 24-hour
Yourthermostatisfactorysettooperateineither°F/12hourformator°C/
24hour(militarytime)format.Ifneeded,youmaychangethisatanytimeas
follows:
1.PresstheOPTIONSbuttonandholdfor1second.An°Fand
12hwillshowonthedisplay.
2. Pressthedownorupbuttontotoggleto°Cand24h.
3. PresstheHOLD/RETURNbuttontoreturntothenormal
operatingmode.
Set the Current Time and Day
1.PresstheDAY/TIMEbuttonandholdfor1second.Thehourshouldbe
blinking.
2. Pressthedownorupbuttontoadjustthehour.
3. PresstheDAY/TIMEbuttonbriey.Theminutesshouldbe
blinking.
4. Pressthedownorupbuttontoadjusttheminutes.
5. PresstheDAY/TIMEbuttonbriey.Thedayshouldbeblinking.
6. Pressthedownorupbuttontoadjusttheday.
7. PresstheHOLD/RETURNbuttonorwait15secondsandthe
thermostatwillreturntothenormaloperatingmode,savingyoursettings.
MO
SET TEMP
FLOOR
CYCLE
M
A
°F
1-4
Customized Program Schedule (User)
Tocustomizetheprogramsheduletomeetyourneeds,follow
thesesteps:
1.PressthePROGRAMbuttonandholdfor1second.Proand
U1, P1, P2, P3, or P4willshowonthedisplay.
2.PressthedownorupbuttontoselectU1.
3.PressthePROGRAMbuttonbriey.CYCLE 1andMOthrough
FRwillshowonthedisplay.Thehourshouldbeblinking.
4.Pressthedownorupbuttontoadjustthehour.
5.PressthePROGRAMbuttonbriey.Theminutesshouldbe
blinking.
6.Pressthedownorupbuttontoadjusttheminutes.
7.PressthePROGRAMbuttonbriey.Thesetpointtemperature
shouldbeblinking.
8.Pressthedownorupbuttontoadjustthesetpointtemperature.
Note: A good rule of thumb is to adjust this about 5 to 8°F (3 to 5 °C)
lower during cycles when you are away to help reduce energy use. If you
set the “away” cycles too low, it will take much longer to raise the
temperature again and may result in unsatisfying performance.
Note: Some wood and laminate oor manufacturers recommend a
maximum of 82 to 84°F (27° to 28°C). Check with manufacturer.
9.PressthePROGRAMbuttonbrieytomovetothenextcyclenumber.
10. RepeatSteps3through7toadjusttheremainingcycletimesandsetpoint
temperaturesMOthroughFR,andfortheotherdaysoftheweek.
11. Whenyounish,oratanytimeduringtheseadjustments,pressthe
HOLD/RETURNbuttonorwait30secondsandthethermostatwillreturntothe
normaloperatingmode.Youradjustmentswillbesaved.
Note: The display in normal operating mode will not show a “U1” indicating
“User” schedule. Also, all schedule adjustments are saved in memory and
will not be lost during power failure.
Note: If you only want to use two cycles during a day, clear the other cycles by
reducing their temperature below 40°F (4.5°C) to show (---).
To use these cycles again, adjust their time and temperature.
from
power
supply
on/off
MO
M
A
SET TEMP
LIMIT
FLOOR
°F
MO
°C
AIR
SET TEMP
SET BACK
LIMIT
FLOOR
USAGE
CYCLE
M
A
M
P
M
A
M
P
°C
°F
°C
°F
TU WE TH FR SA SU
HOLD
GFCI
TRIP
HEATING
°F
P1
P2
P3
P4
LOCK
MO
M
A
HEATING
MO
SET TEMP
CYCLE
M
A
°F
HOLD
USAGE
MO
CYCLE
M
A
°F
TU WE TH FR MO
CYCLE
M
A
°F
SET BACK
FLOOR
FLOOR
MO
CYCLE
M
A
°F
FLOOR
Use the Factory Programmed “User” Schedule
Ifyouwanttobeginusingyourthermostatnowwithoutmakinganychangesto
thefactorysetprogrammingschedule,youmayskiptosection“5 Operation”.
Itwilloperateinthe“User”Schedule(U1),pre-programmedasfollows,and
canbecustomizedlatertoyourneeds(seesection“4 Additional Setups”):
4. Additional Setups
Lifestyle Program Schedules (Presets)
Thereareconvenientschedulesalreadysetuptomeettypicallifestyles.Ifyou
seeascheduleP1throughP4youlike,selectoneasfollows:
1.PressthePROGRAMbuttonandholdfor1second.Proand
U1, P1, P2, P3, or P4willshowonthedisplay.
2. PressthedownorupbuttonbrieytoselectP1,P2,P3,orP4.
Theseschedulesarenotabletobemodied,andareasfollows:
MO
M
A
SET TEMP
LIMIT
FLOOR
°F
MO
°C
AIR
SET TEMP
SET BACK
LIMIT
FLOOR
USAGE
CYCLE
M
A
M
P
M
A
M
P
°C
°F
°C
°F
TU WE TH FR SA SU
HOLD
GFCI
TRIP
HEATING
°F
P1
P2
P3
P4
LOCK
MO
M
A
HEATING
MO
SET TEMP
CYCLE
M
A
°F
HOLD
USAGE
MO
CYCLE
M
A
°F
TU WE TH FR MO
CYCLE
M
A
°F
SET BACK
FLOOR
FLOOR
MO
CYCLE
M
A
°F
FLOOR
MO
M
A
SET TEMP
LIMIT
FLOOR
°F
MO
°C
AIR
SET TEMP
SET BACK
LIMIT
FLOOR
USAGE
CYCLE
M
A
M
P
M
A
M
P
°C
°F
°C
°F
TU WE TH FR SA SU
HOLD
GFCI
TRIP
HEATING
°F
P1
P2
P3
P4
LOCK
MO
M
A
HEATING
MO
SET TEMP
CYCLE
M
A
°F
HOLD
USAGE
MO
CYCLE
M
A
°F
TU WE TH FR
MO
CYCLE
M
A
°F
SET BACK
FLOOR
FLOOR
MO
CYCLE
M
A
°F
FLOOR
MO
M
A
SET TEMP
LIMIT
FLOOR
°F
MO
°C
AIR
SET TEMP
SET BACK
LIMIT
FLOOR
USAGE
CYCLE
M
A
M
P
M
A
M
P
°C
°F
°C
°F
TU WE TH FR SA SU
HOLD
GFCI
TRIP
HEATING
°F
P1
P2
P3
P4
LOCK
MO
M
A
HEATING
MO
SET TEMP
CYCLE
M
A
°F
HOLD
USAGE
MO
CYCLE
M
A
°F
TU WE TH FR MO
CYCLE
M
A
°F
SET BACK
FLOOR
FLOOR
MO
CYCLE
M
A
°F
FLOOR
to
oor
warming
system
1. Preparation
1.Unpackyourthermostatandmakesureeverythingisingoodcondition:
•Thermostat
•Floor sensor
•Small screwdriver
•Mounting screws
•Wire nuts for wiring connections
Ifanypartsaremissingordamaged,contactthestorewhereyoupurchased
thisthermostat.Donotinstalladamagedpart.
2. Gatherthefollowingtoolsandsupplies:
 •Phillipsscrewdriver,holesaw
 •Wirestrippers,“shtape”,otherelectricaltools
 •Electricalboxforthermostat:
a.Ifyouareconnectingtopowerleadsfromonly1or2oorwarming
 systems,youmayuseasingle-gang,31⁄2inchdeepbox.
b.Ifyouareconnectingtopowerleadsfrom3oorwarmingsystems,
 usea4x4x21⁄8inchordeeperbox(nota2-gangbox)whenyourwallstuds
 arestillexposed.Installasingle-gang“mud-ring”coverontheboxbefore
 installingdrywallmaterials.
c.Formorethan3oorwarmingsystemsorotherlayouts,youmayneed
 toinstallajunctionboxtoconnectthepowerleadstogether.Thenuse
 housewiretoconnectbetweenthejunctionboxandthethermostat
 electricalbox.Seetheinstallationinstructionsforyouroorwarming
 systemformoreinformation.
ALWAYS:WireallcircuitsasClass1,ElectricLightandPowerCircuits.
ALWAYS:Wireallcircuitswithinsulationrated600Vminimum.
ALWAYS:Mountthiscontrolonlytoagroundedmetallicboxora
 nonmetallicbox.
ALWAYS:Usepowersupplywiressuitableforatleast90°C.

CAUTION:Highvoltage–disconnectpowersupplybeforeservicing.
CAUTION:TheGFCIinthiscontroldoesnotprotectagainstshockifboth
bareconductorsaretouchedatthesametime.
5. Thecircuitbreakerinthemaincircuitpanelshouldbe15ampsmaximum
foraoorwarmingsystemtotaling12ampsorless.Forlargersystemsup
to15amps,usea20ampmaximumcircuitbreaker.Neverexceed15amps
onthisthermostat.Youmayconsiderusinganarc-fault(AFCI)typecircuit
breakerforadditionalprotection.
6. Pullthepowersupplywiringintothisbox,leavingabout6inchesofwire.
7. Pulltheoorsensorwireandthepowerleadwiresfromyouroorwarming
systemupthewall,intothisbox.Refertoyouroorwarmingsystem
installationinstructionsforplacementoftheoorsensortipintotheoorarea.
Note: The sensor wires should not be run in the same conduit as line voltage
wires to avoid possible interference. If the sensor lead wires are not long
enough, they may be extended an additional 15 feet (4.5 m) using minimum
20-gage 2-conductor wire or up to 50 feet (15 m) using shielded wire.
8. Mounttheelectricalbox.
power
module
front
module
MO
M
A
SET TEMP
LIMIT
FLOOR
°F
MO
°C
AIR
SET TEMP
SET BACK
LIMIT
FLOOR
USAGE
CYCLE
M
A
M
P
M
A
M
P
°C
°F
°C
°F
TU WE TH FR SA SU
HOLD
GFCI
TRIP
HEATING
°F
P1
P2
P3
P4
LOCK
MO
M
A
HEATING
MO
SET TEMP
CYCLE
M
A
°F
HOLD
USAGE
MO
CYCLE
M
A
°F
TU WE TH FR MO
CYCLE
M
A
°F
SET BACK
FLOOR
FLOOR
MO
CYCLE
M
A
°F
FLOOR
Cycle 1 2 3 4
Mon-Fri 6:00 am 8:00 am 5:00 pm 10:00 pm
82 F 74 F 82 F 74 F
Saturday 7:00 am 9:00 am 5:00 pm 11:00 pm
82 F 74 F 82 F 74 F
Sunday 7:00 am 9:00 am 5:00 pm 11:00 pm
82 F 74 F 82 F 74 F
U1 (User changeable)
82 F 82 F
74 F 74 F
Note: Air Sensing mode default temperatures are 70F and 62F.
Cycle 1 2 3 4
Mon-Fri 5:00 am 7:00 am 5:00 pm 10:00 pm
82 F 74 F 82 F 74 F
Saturday 5:00 am 9:00 am 5:00 pm 10:00 pm
82 F 74 F 82 F 74 F
Sunday 5:00 am 9:00 am 5:00 pm 10:00 pm
82 F 74 F 82 F 74 F
P1 (Early Riser)
Note: Air Sensing mode default temperatures are 70F and 62F.
Cycle 1 2 3 4
Mon-Fri 5:00 am 8:00 am 6:00 pm 11:00 pm
82 F 74 F 82 F 74 F
Saturday 6:00 am 9:00 am 5:00 pm 11:00 pm
82 F 74 F 82 F 74 F
Sunday 6:00 am 9:00 am 5:00 pm 11:00 pm
82 F 74 F 82 F 74 F
P2 (Longer Day)
Note: Air Sensing mode default temperatures are 70F and 62F.
Cycle 1 2 3 4
Mon-Fri 6:00 am 9:00 am 6:00 pm 10:00 pm
75 F 70 F 75 F 70 F
Saturday 7:00 am 10:00 am 6:00 pm 10:00 pm
75 F 70 F 75 F 70 F
Sunday 7:00 am 10:00 am 6:00 pm 10:00 pm
75 F 70 F 75 F 70 F
P4 (Take the chill off)
Note: Air Sensing mode default temperatures are 65F and 60F.
Cycle 1 2 3 4
Mon-Fri 6:00 am 8:00 am 6:00 pm 10:00 pm
82 F 79 F 82 F 75 F
Saturday 6:00 am 9:00 am 6:00 pm 10:00 pm
82 F 79 F 82 F 75 F
Sunday 6:00 am 9:00 am 6:00 pm 10:00 pm
82 F 79 F 82 F 75 F
P3 (At home during the day)
Note: Air Sensing mode default temperatures are 70F, 67F, and 62F.
Example
Cycle 1 2 3 4
Mon-Fri --:-- 7:30 am 6:00 pm --:--
-- F 72 F 80 F -- F
80 F 80 F
72 F
temperature to make sure it is
heating for a few minutes (section 5),
c. Test the GFCI (section 5).

5
sensor
2. Installation
Remove the Thermostat Face
1.RemovethethermostatFrontModule
fromthePowerModulebyopeningthedoor
andlooseningthescrew.
2. Pulloutwardnearthebottomonthe
FrontModuleandliftoff.
Prepare the Wiring
1.Findalocationforyourthermostat.Itis
suitableforindooruseonly,oninsulatedor
uninsulatedwalls.Locateitabout41⁄2feet
to5feetabovetheooronaninsidewall.Makesureitiswellventilatedand
notlocatedinaconnedspacesuchasasmallclosetorcabinet.Avoidplacing
itnearotherheatsourcessuchashot-waterpiping,heatduct,wall-mount
lighting,anddirectsunlighttohelppreventadverselyaffectingthethermostat.
2. Turnoffthepowertotheoorwarmingsystematthemaincircuitpanel
beforedoinganyelectricalwork.
3. Aqualiedelectricianshouldrunadedicatedcircuitfromthemaincircuit
paneltothethermostatlocation.
4. Ifadedicatedcircuitisnotpossible,youmaytapfromanothercircuitinthe
room.Makesurethereisenoughloadcapacity(amps)tohandletheaddition
ofyouroorwarmingsystem,andthatitisNOTwiredinserieswithanyother
device,includingotherGFCIs.
Owner’s Manual
Your new SunStat Pro thermostatisdesignedtocontrolthevoltageto
eithera120VACor240VACresistiveoorwarmingsystem.
Pleasefollowthismanualforcompleteinstallationandoperationinstructions.
Ifyouhaveanyquestionsorcomments,trycallingTechnicalSupportat
1-888-432-8932.
 CAUTION:Makesureyouarequaliedandarefamiliarwithhousewiring.
Thisisalinevoltagedevicethatcouldcauseseriousinjuryordamageif
improperlyinstalled.
Connect Wires
1. Matchandconnectthetwowires
marked“LINE1”and“LINE2”tothe
powersupplywiresusingthewirenuts
provided.
2. Gentlytugonthewirestomakesure
theyaresecure,otherwiseawirecould
loosenandcausefailure.
3. Overwrapthewirenutswithelectrical
tapetobettersecurethemtothewires.
4. Matchandconnectthetwowires
marked“LOAD1”and“LOAD2”tothe
oorwarmingsystemleadwiresand
securethesewiresthesameway.
5. Connectthehousegroundwiretothe
greenorbareleadwire(s)ofyouroor
warmingsystem.
6. Inserttheendsoftheoorsensor
wireintothe“SENSOR”terminals(1and
2)andtightenthescrews.Thereisno
polarity,soitdoesnotmatterwhichwire
endgoesintowhichterminal.
 CAUTION:Beforecontinuing,make
sureyourpowersupplyvoltagematches
thevoltageratingofyouroorwarming
system.
Connecting240Vtoa120Voorwarm-
ingsystemwillcauseoverheatingand
damagetothesystemandmaydamage
thecontrol,otherwiring,oorcoverings,
etc.
Remote Control
1. Ifyouwanttoconnectyourthermostattoaremotecontroldevice,suchas
ahomeautomationsystem,rstmakesurethattheremotedevicehasa“dry
contact”output(anun-energizedswitch,suchasthecontactsonarelay).Many
homeautomationsystemscomewithsuchanoutputthatopensorclosesat
speciedtimes.
2. Pull2-conductorwire,size18-to24-gage,throughthewallfromtheremote
device,intothiselectricalbox.
3. Connectthewireendsintothe“SETBACK”terminals(5and6)andtighten
thescrews(nopolarity).

SunStat Relays
1. IfyouwanttouseyourthermostattodriveaSunStatRelay(s)(askyourdealer
aboutthisconvenientwaytocontrollargersystemswithonethermostat),rst
readandfollowtheinstructionsfortheSunStatRelaythoroughly.
2. Pull2-conductorwire,size18-to24-gage,throughthewallfromtheSunStat
Relay,intothiselectricalbox.Thiswiremaybeupto100feet(30m)inlength
fromthethermostattothelastSunStatRelayinstalled.
3. Connectthewireendsintothe“RELOUT”terminals(3and4)andtightenthe
screws(ObservepolarityofthewireswhenconnectingtotheSunStatRelay).

Mount the Thermostat
1. Carefullyfoldandpressthewiresbackintotheelectricalbox.Donotuse
thethermostattopushthemin,asthismaycauseconnectionstoloosenand
possiblefailure.
2. SecurethethermostatPowerModule
intotheboxwiththemountingscrews
provided.
3. CarefullysnaptheFrontModuleonto
thePowerModule.
4. Tightenthescrew.
5. Switchonthepoweratthemaincircuit
panel.
NOTE to contractors:After installing the
thermostat, be sure to:
a.Do a Quick Setup (section 3),
b. Temporarily override the setpoint
SunStatPro
ProgrammableThermostat
Model500670
3. PresstheHOLD/RETURNbuttonorwait15secondsandthethermostatwill
returntothenormaloperatingmode,savingyourselection.Thethermostat
willnowdisplayaP1,P2,P3,orP4atthebottomright.
3. Quick Setup
On/Off Switch
Yourthermostatshouldbeturnedoffwhenit
isrstinstalled.ThedisplaywillshowOFFand
thetimeandday.
1.Slidetheon/offswitchtotheupperposition,
turningthethermostaton.Thedisplaywill
showthetimeandday,temperatures,andother
information.
2. Toturnthethermostatoffanytime,slidethe
on/offswitchtothelowerposition.Noheating
willoccurandallprogrammingisretained.
Change Format Between °F / 12-hour and °C / 24-hour
Yourthermostatisfactorysettooperateineither°F/12hourformator°C/
24hour(militarytime)format.Ifneeded,youmaychangethisatanytimeas
follows:
1.PresstheOPTIONSbuttonandholdfor1second.An°Fand
12hwillshowonthedisplay.
2. Pressthedownorupbuttontotoggleto°Cand24h.
3. PresstheHOLD/RETURNbuttontoreturntothenormal
operatingmode.
Set the Current Time and Day
1.PresstheDAY/TIMEbuttonandholdfor1second.Thehourshouldbe
blinking.
2. Pressthedownorupbuttontoadjustthehour.
3. PresstheDAY/TIMEbuttonbriey.Theminutesshouldbe
blinking.
4. Pressthedownorupbuttontoadjusttheminutes.
5. PresstheDAY/TIMEbuttonbriey.Thedayshouldbeblinking.
6. Pressthedownorupbuttontoadjusttheday.
7. PresstheHOLD/RETURNbuttonorwait15secondsandthe
thermostatwillreturntothenormaloperatingmode,savingyoursettings.
MO
SET TEMP
FLOOR
CYCLE
M
A
°F
1-4
Customized Program Schedule (User)
Tocustomizetheprogramsheduletomeetyourneeds,follow
thesesteps:
1.PressthePROGRAMbuttonandholdfor1second.Proand
U1, P1, P2, P3, or P4willshowonthedisplay.
2.PressthedownorupbuttontoselectU1.
3.PressthePROGRAMbuttonbriey.CYCLE 1andMOthrough
FRwillshowonthedisplay.Thehourshouldbeblinking.
4.Pressthedownorupbuttontoadjustthehour.
5.PressthePROGRAMbuttonbriey.Theminutesshouldbe
blinking.
6.Pressthedownorupbuttontoadjusttheminutes.
7.PressthePROGRAMbuttonbriey.Thesetpointtemperature
shouldbeblinking.
8.Pressthedownorupbuttontoadjustthesetpointtemperature.
Note: A good rule of thumb is to adjust this about 5 to 8°F (3 to 5 °C)
lower during cycles when you are away to help reduce energy use. If you
set the “away” cycles too low, it will take much longer to raise the
temperature again and may result in unsatisfying performance.
Note: Some wood and laminate oor manufacturers recommend a
maximum of 82 to 84°F (27° to 28°C). Check with manufacturer.
9.PressthePROGRAMbuttonbrieytomovetothenextcyclenumber.
10. RepeatSteps3through7toadjusttheremainingcycletimesandsetpoint
temperaturesMOthroughFR,andfortheotherdaysoftheweek.
11. Whenyounish,oratanytimeduringtheseadjustments,pressthe
HOLD/RETURNbuttonorwait30secondsandthethermostatwillreturntothe
normaloperatingmode.Youradjustmentswillbesaved.
Note: The display in normal operating mode will not show a “U1” indicating
“User” schedule. Also, all schedule adjustments are saved in memory and
will not be lost during power failure.
Note: If you only want to use two cycles during a day, clear the other cycles by
reducing their temperature below 40°F (4.5°C) to show (---).
To use these cycles again, adjust their time and temperature.
from
power
supply
on/off
MO
M
A
SET TEMP
LIMIT
FLOOR
°F
MO
°C
AIR
SET TEMP
SET BACK
LIMIT
FLOOR
USAGE
CYCLE
M
A
M
P
M
A
M
P
°C
°F
°C
°F
TU WE TH FR SA SU
HOLD
GFCI
TRIP
HEATING
°F
P1
P2
P3
P4
LOCK
MO
M
A
HEATING
MO
SET TEMP
CYCLE
M
A
°F
HOLD
USAGE
MO
CYCLE
M
A
°F
TU WE TH FR MO
CYCLE
M
A
°F
SET BACK
FLOOR
FLOOR
MO
CYCLE
M
A
°F
FLOOR
Use the Factory Programmed “User” Schedule
Ifyouwanttobeginusingyourthermostatnowwithoutmakinganychangesto
thefactorysetprogrammingschedule,youmayskiptosection“5 Operation”.
Itwilloperateinthe“User”Schedule(U1),pre-programmedasfollows,and
canbecustomizedlatertoyourneeds(seesection“4 Additional Setups”):
4. Additional Setups
Lifestyle Program Schedules (Presets)
Thereareconvenientschedulesalreadysetuptomeettypicallifestyles.Ifyou
seeascheduleP1throughP4youlike,selectoneasfollows:
1.PressthePROGRAMbuttonandholdfor1second.Proand
U1, P1, P2, P3, or P4willshowonthedisplay.
2. PressthedownorupbuttonbrieytoselectP1,P2,P3,orP4.
Theseschedulesarenotabletobemodied,andareasfollows:
MO
M
A
SET TEMP
LIMIT
FLOOR
°F
MO
°C
AIR
SET TEMP
SET BACK
LIMIT
FLOOR
USAGE
CYCLE
M
A
M
P
M
A
M
P
°C
°F
°C
°F
TU WE TH FR SA SU
HOLD
GFCI
TRIP
HEATING
°F
P1
P2
P3
P4
LOCK
MO
M
A
HEATING
MO
SET TEMP
CYCLE
M
A
°F
HOLD
USAGE
MO
CYCLE
M
A
°F
TU WE TH FR MO
CYCLE
M
A
°F
SET BACK
FLOOR
FLOOR
MO
CYCLE
M
A
°F
FLOOR
MO
M
A
SET TEMP
LIMIT
FLOOR
°F
MO
°C
AIR
SET TEMP
SET BACK
LIMIT
FLOOR
USAGE
CYCLE
M
A
M
P
M
A
M
P
°C
°F
°C
°F
TU WE TH FR SA SU
HOLD
GFCI
TRIP
HEATING
°F
P1
P2
P3
P4
LOCK
MO
M
A
HEATING
MO
SET TEMP
CYCLE
M
A
°F
HOLD
USAGE
MO
CYCLE
M
A
°F
TU WE TH FR
MO
CYCLE
M
A
°F
SET BACK
FLOOR
FLOOR
MO
CYCLE
M
A
°F
FLOOR
MO
M
A
SET TEMP
LIMIT
FLOOR
°F
MO
°C
AIR
SET TEMP
SET BACK
LIMIT
FLOOR
USAGE
CYCLE
M
A
M
P
M
A
M
P
°C
°F
°C
°F
TU WE TH FR SA SU
HOLD
GFCI
TRIP
HEATING
°F
P1
P2
P3
P4
LOCK
MO
M
A
HEATING
MO
SET TEMP
CYCLE
M
A
°F
HOLD
USAGE
MO
CYCLE
M
A
°F
TU WE TH FR MO
CYCLE
M
A
°F
SET BACK
FLOOR
FLOOR
MO
CYCLE
M
A
°F
FLOOR
to
oor
warming
system
1. Preparation
1.Unpackyourthermostatandmakesureeverythingisingoodcondition:
•Thermostat
•Floor sensor
•Small screwdriver
•Mounting screws
•Wire nuts for wiring connections
Ifanypartsaremissingordamaged,contactthestorewhereyoupurchased
thisthermostat.Donotinstalladamagedpart.
2. Gatherthefollowingtoolsandsupplies:
 •Phillipsscrewdriver,holesaw
 •Wirestrippers,“shtape”,otherelectricaltools
 •Electricalboxforthermostat:
a.Ifyouareconnectingtopowerleadsfromonly1or2oorwarming
 systems,youmayuseasingle-gang,31⁄2inchdeepbox.
b.Ifyouareconnectingtopowerleadsfrom3oorwarmingsystems,
 usea4x4x21⁄8inchordeeperbox(nota2-gangbox)whenyourwallstuds
 arestillexposed.Installasingle-gang“mud-ring”coverontheboxbefore
 installingdrywallmaterials.
c.Formorethan3oorwarmingsystemsorotherlayouts,youmayneed
 toinstallajunctionboxtoconnectthepowerleadstogether.Thenuse
 housewiretoconnectbetweenthejunctionboxandthethermostat
 electricalbox.Seetheinstallationinstructionsforyouroorwarming
 systemformoreinformation.
ALWAYS:WireallcircuitsasClass1,ElectricLightandPowerCircuits.
ALWAYS:Wireallcircuitswithinsulationrated600Vminimum.
ALWAYS:Mountthiscontrolonlytoagroundedmetallicboxora
 nonmetallicbox.
ALWAYS:Usepowersupplywiressuitableforatleast90°C.

CAUTION:Highvoltage–disconnectpowersupplybeforeservicing.
CAUTION:TheGFCIinthiscontroldoesnotprotectagainstshockifboth
bareconductorsaretouchedatthesametime.
5. Thecircuitbreakerinthemaincircuitpanelshouldbe15ampsmaximum
foraoorwarmingsystemtotaling12ampsorless.Forlargersystemsup
to15amps,usea20ampmaximumcircuitbreaker.Neverexceed15amps
onthisthermostat.Youmayconsiderusinganarc-fault(AFCI)typecircuit
breakerforadditionalprotection.
6. Pullthepowersupplywiringintothisbox,leavingabout6inchesofwire.
7. Pulltheoorsensorwireandthepowerleadwiresfromyouroorwarming
systemupthewall,intothisbox.Refertoyouroorwarmingsystem
installationinstructionsforplacementoftheoorsensortipintotheoorarea.
Note: The sensor wires should not be run in the same conduit as line voltage
wires to avoid possible interference. If the sensor lead wires are not long
enough, they may be extended an additional 15 feet (4.5 m) using minimum
20-gage 2-conductor wire or up to 50 feet (15 m) using shielded wire.
8. Mounttheelectricalbox.
power
module
front
module
MO
M
A
SET TEMP
LIMIT
FLOOR
°F
MO
°C
AIR
SET TEMP
SET BACK
LIMIT
FLOOR
USAGE
CYCLE
M
A
M
P
M
A
M
P
°C
°F
°C
°F
TU WE TH FR SA SU
HOLD
GFCI
TRIP
HEATING
°F
P1
P2
P3
P4
LOCK
MO
M
A
HEATING
MO
SET TEMP
CYCLE
M
A
°F
HOLD
USAGE
MO
CYCLE
M
A
°F
TU WE TH FR MO
CYCLE
M
A
°F
SET BACK
FLOOR
FLOOR
MO
CYCLE
M
A
°F
FLOOR
Cycle 1 2 3 4
Mon-Fri 6:00 am 8:00 am 5:00 pm 10:00 pm
82 F 74 F 82 F 74 F
Saturday 7:00 am 9:00 am 5:00 pm 11:00 pm
82 F 74 F 82 F 74 F
Sunday 7:00 am 9:00 am 5:00 pm 11:00 pm
82 F 74 F 82 F 74 F
U1 (User changeable)
82 F 82 F
74 F 74 F
Note: Air Sensing mode default temperatures are 70F and 62F.
Cycle 1 2 3 4
Mon-Fri 5:00 am 7:00 am 5:00 pm 10:00 pm
82 F 74 F 82 F 74 F
Saturday 5:00 am 9:00 am 5:00 pm 10:00 pm
82 F 74 F 82 F 74 F
Sunday 5:00 am 9:00 am 5:00 pm 10:00 pm
82 F 74 F 82 F 74 F
P1 (Early Riser)
Note: Air Sensing mode default temperatures are 70F and 62F.
Cycle 1 2 3 4
Mon-Fri 5:00 am 8:00 am 6:00 pm 11:00 pm
82 F 74 F 82 F 74 F
Saturday 6:00 am 9:00 am 5:00 pm 11:00 pm
82 F 74 F 82 F 74 F
Sunday 6:00 am 9:00 am 5:00 pm 11:00 pm
82 F 74 F 82 F 74 F
P2 (Longer Day)
Note: Air Sensing mode default temperatures are 70F and 62F.
Cycle 1 2 3 4
Mon-Fri 6:00 am 9:00 am 6:00 pm 10:00 pm
75 F 70 F 75 F 70 F
Saturday 7:00 am 10:00 am 6:00 pm 10:00 pm
75 F 70 F 75 F 70 F
Sunday 7:00 am 10:00 am 6:00 pm 10:00 pm
75 F 70 F 75 F 70 F
P4 (Take the chill off)
Note: Air Sensing mode default temperatures are 65F and 60F.
Cycle 1 2 3 4
Mon-Fri 6:00 am 8:00 am 6:00 pm 10:00 pm
82 F 79 F 82 F 75 F
Saturday 6:00 am 9:00 am 6:00 pm 10:00 pm
82 F 79 F 82 F 75 F
Sunday 6:00 am 9:00 am 6:00 pm 10:00 pm
82 F 79 F 82 F 75 F
P3 (At home during the day)
Note: Air Sensing mode default temperatures are 70F, 67F, and 62F.
Example
Cycle 1 2 3 4
Mon-Fri --:-- 7:30 am 6:00 pm --:--
-- F 72 F 80 F -- F
80 F 80 F
72 F
temperature to make sure it is
heating for a few minutes (section 5),
c. Test the GFCI (section 5).

Lockout Feature
Yourthermostathastheabilitytolockoutadjustmentbyotherusers.This
maybeusefulinpubliclocations.Onlytheon/offswitchandtheGFCItest
buttonwillthenoperate.
1.Pressthedownandupbuttonatthesametimeandholdfor1second.
LOCKwillshowonthedisplay.
2. Tocancelthislockout,thedownandupbuttonmustbepressedandheld
for1second.Thethermostatwillreturntothenormaloperatingmode.
Test the GFCI
ThereisaGFCI(GroundFaultCircuitInterrupter)insidethethermostat.It
isdesignedtohelpprotectpeoplefrompossibleelectricalshockiftheoor
warmingsystemhasbeendamaged.
TomakesuretheGFCIisoperating,testitafteritisinstalledandonceeach
month:
1.MakesurethethermostatisHEATING.Youmayneedtoincreasethe
setpointtemporarily.
2. PresstheGFCITestbuttononthesideofthethermostat.GFCI TRIP
shouldshowonthedisplayandaredlightwillshownexttotheGFCITest
button.Youshouldalsohearaclick,indicatingpowerhasbeenremoved
fromtheoorwarmingsystem.Ifanyoftheseindicatorsfail,turnoffthe
thermostatandreplaceit.Donotcontinuetouse.
3. ToresettheGFCI,slidetheOn/Offswitchoffandbackon.Ifthe
GFCIdoesnotreset,turnthethermostatoffandgotosection6
“Troubleshooting” forhelp.
Limited Warranty
WattsRadiant,Inc.warrantsthisthermostatcontrolandsensor(theproduct)
tobefreefromdefectsinmaterialandworkmanshipforaperiodoftwo(2)
yearsfromthedateoforiginalpurchasefromauthorizeddealers.During
thisperiod,WattsRadiant,Inc.willreplacetheproductorrefundtheoriginal
costoftheproductatWattsRadiant’soption,withoutcharge,iftheproduct
isprovendefectiveinnormaluse.Pleasereturnthethermostattoyour
distributortobeginthewarrantyprocess.
Thislimitedwarrantydoesnotcovershippingcosts.Nordoesitcovera
productsubjectedtomisuseoraccidentaldamage.Thiswarrantydoesnot
coverthecostofinstallation,diagnosis,removalorreinstallation,orany
materialcostsorlossofuse.
Thislimitedwarrantyisinlieuofallotherwarranties,obligations,orliabilities
expressedorimpliedbythecompany.InnoeventshallWattsRadiant,Inc.
beliableforconsequentialorincidentaldamagesresultingfrominstallation
ofthisproduct.Somestatesorprovincesdonotallowlimitationsonhow
longanimpliedwarrantylasts,ortheexclusionorlimitationofincidentalor
consequentialdamages,sotheaboveexclusionsorlimitationsmaynotapply
toyou.Thiswarrantygivesyouspeciclegalrightsandyoumayalsohave
otherrightsthatvaryfromstatetostate.
5. Operation
Controlling the Temperature
Yourthermostathasseveralwaystocontrolyouroorwarmingsystem.It
isfactorysettooperateintheprogramscheduleselectedbutthiscanbe
overriddentomeetyourneeds.
Program Schedule
Thethermostatwilloperatenormallyintheprogramscheduleselected.
Whenheatiscalledfor,HEATINGwillshowonthedisplayand
fullpowerissuppliedtotheoorwarmingsystem.Thisalso
signalstoturnonanySunStatRelaysthatmaybeconnectedto
yourthermostat.
7. Specications
 PowerSupply 120/240VAC,50/60Hz
 MaximumLoad 15amps,resistive
 MaximumPower 1800wattsat120VAC
  3600wattsat240VAC
 GFCI ClassA(5milliamptrip)
 DisplayRange 32°Fto140°F(0°Cto60°C)
 SettingRange 40°Fto99°F(4°Cto37°C)
 Accuracy ±0.9°F(0.5°C)
 StorageTemp 0°Fto120°F(0°Cto49°C)
 Sensor Thermistor,10kNTC,double-insulated
 Memory Programmingretainedindenitely
  Currenttimeanddaywillneedre-set
  ifpowerislostmorethan30minutes.
 ETLListing ControlNo.3037530
  ConformstoUL873,UL943,CSAC22.2No.
24,andCAN/CSAC22.2No.144
6. Troubleshooting
Problem Solution
Thermostatworks
butnoheatfromthe
system.
1.Checkwiringconnections.
2.IfGFCIistripped,resetthermostatwithon/offswitch.
3.Checkresistancesonoorwarmingsystem.See
manualforsystem.
Nodisplay. 1.Checkwiringconnections. 2.Checkcircuitbreakerorotherprotection“upstream”of
thermostat.
GFCIistripped.
1.Checkwiringconnections.
2.Resetthermostatbyswitchingoff/on.
3.Checkresistancesonoorwarmingsystem.See
manualforsystem.
Heatingoccursat
wrongtimes.
1.Checkthatthecurrenttimeandscheduletimesare
properlysettoAMorPM.
2.OnuninsulatedconcreteSmartStartmaystartheating
veryearly.Youmayturnthisfeatureoffifnotdesired.
Er1(onlyatstartup) Floorsensornotcorrecttypeoroutofrange.Checkoor
sensorresistance.
Er2 Floorsensorshort-circuited.Turnoffpoweratbreakerand
replacesensor.OrResetFactoryDefaults(section4).
Er3 Floorsensornotattachedandthermostatinoorsense mode.Turnoffpoweratbreakerandattachsensor.Or
ResetFactoryDefaults(section4).
Er4orEr5 Internalairsensorisfaulty.Replacethermostator
operateinoorsensemode.
Er6
Internaltemperatureoverlimit.Makesuresunlightis
notdirectedatthethermostatorotherheatsourcein
proximity.Otherwise,Turnoffpoweratbreakerand
contactfactory.
Er7 “End-of-life”indication.GFCIwillnolongerfunction correctlyorsafely.Resetthecircuitbreakerorreplace
thermostat.
Temporarily Overriding the Temperature
Youcantemporarilyadjustthetemperaturesetpointasfollows.Thiswillhold
untilthenextscheduledprogramtime:
1.Pressthedownoruparrowbuttonandholdfor1secondtoadjustthe
setpointtemperature.
2. Wait5secondsandthethermostatwillreturntothenormaloperating
mode,savingyouradjustment.
3. Tocancelthistemporaryoverrideandreturntothenormal
scheduletemperature,presstheHOLD/RETURNbuttonbriey.
Hold a Selected Temperature
Youcanholdthecurrentsetpointtemperatureindenitely,
especiallyusefulwhenyouareonvacation.
1.PresstheHOLD/RETURNbuttonandholdfor1second.HOLDwillshowon
thedisplayandthesetpointtemperatureshownwillbemaintaineduntilyou
cancelthishold.
2. Tocancelthishold,presstheHOLD/RETURNbuttonandholdfor1second.
HOLDwilldisappearfromthedisplay.
3. PressHold/Returnbrieyandthethermostatwillreturntothe
normalscheduletemperature.
Setback
YoucanusetheSetbackbuttontooverridethecurrentsetpoint
temperature.Thisisespeciallyusefulifyouhaveanalternate
temperatureyourepeatedlyselectwhenyouareaway.
1.PresstheSETBACKbuttonbriey.SETBACKwillshowonthedisplayand
itstemperature.Thissetpointwillholduntilthenextscheduledprogramtime.
2. ToholdthisSetbacktemperatureindenitely,presstheHOLD/RETURN
buttonandholdfor1second.Tocancelthishold,presstheHOLD/RETURN
buttonagainandholdfor1second.
3. TocancelthisSetbacktemperatureandreturntothenormalschedule
temperature,presstheSETBACKbuttonbriey.
To change the temperature stored in the SETBACK button:
1.PresstheSETBACKbuttonandholdfor1second.SETBACKwillshowon
thedisplayanditstemperatureshouldbeblinking.
2. Pressthedownorupbuttontoadjustthetemperature.
3. PresstheHOLD/RETURNbuttonorwait5secondsandthethermostatwill
returntothenormaloperatingmode,savingyouradjustment.
Remote Control Override
IfyourthermostatwasinstalledwithRemoteControlinputfromahome
automationsystem(seesection2 “Installation”),thiswilloverridethe
thermostatwhentheremotecontrolsystemclosesitsoutputswitchorrelay.
SETBACKandHOLDwillshowonthedisplayanditwilloperateintheSetback
temperatureindenitely.Tocancelthis,theRemoteControlswitchorrelay
mustbeopened.
MO
M
A
SET TEMP
LIMIT
FLOOR
°F
MO
°C
AIR
SET TEMP
SET BACK
LIMIT
FLOOR
USAGE
CYCLE
M
A
M
P
M
A
M
P
°C
°F
°C
°F
TU WE TH FR SA SU
HOLD
GFCI
TRIP
HEATING
°F
P1
P2
P3
P4
LOCK
MO
M
A
HEATING
MO
SET TEMP
CYCLE
M
A
°F
HOLD
USAGE
MO
CYCLE
M
A
°F
TU WE TH FR MO
CYCLE
M
A
°F
SET BACK
FLOOR
FLOOR
MO
CYCLE
M
A
°F
FLOOR
MO
M
A
SET TEMP
LIMIT
FLOOR
°F
MO
°C
AIR
SET TEMP
SET BACK
LIMIT
FLOOR
USAGE
CYCLE
M
A
M
P
M
A
M
P
°C
°F
°C
°F
TU WE TH FR SA SU
HOLD
GFCI
TRIP
HEATING
°F
P1
P2
P3
P4
LOCK
MO
M
A
HEATING
MO
SET TEMP
CYCLE
M
A
°F
HOLD
USAGE
MO
CYCLE
M
A
°F
TU WE TH FR
MO
CYCLE
M
A
°F
SET BACK
FLOOR
FLOOR
MO
CYCLE
M
A
°F
FLOOR
MO
M
A
SET TEMP
LIMIT
FLOOR
°F
MO
°C
AIR
SET TEMP
SET BACK
LIMIT
FLOOR
USAGE
CYCLE
M
A
M
P
M
A
M
P
°C
°F
°C
°F
TU WE TH FR SA SU
HOLD
GFCI
TRIP
HEATING
°F
P1
P2
P3
P4
LOCK
MO
M
A
HEATING
MO
SET TEMP
CYCLE
M
A
°F
HOLD
USAGE
MO
CYCLE
M
A
°F
TU WE TH FR MO
CYCLE
M
A
°F
SET BACK
FLOOR
FLOOR
MO
CYCLE
M
A
°F
FLOOR
Usage
Yourthermostatstoresinmemorythenumberofhoursitisheating.This
informationmaybeusefulincalculatingtheenergyusedbyyouroorwarming
system.
1.PresstheOPTIONSbuttonandholdfor1second.
2. PresstheOPTIONSbuttonagainuntilUSAGEand1 dshows
onthedisplay.
3. Thetimeshownonthedisplayisthenumberofhoursitwas
heatingtoday.
4. Pressthedownorupbuttontotogglebetweentheprevious
1-day,7-day,and30-dayusages.
5. PresstheHOLD/RETURNbuttonorwait15secondsandthe
thermostatwillreturntothenormaloperatingmode.
MO
M
A
SET TEMP
LIMIT
FLOOR
°F
MO
°C
AIR
SET TEMP
SET BACK
LIMIT
FLOOR
USAGE
CYCLE
M
A
M
P
M
A
M
P
°C
°F
°C
°F
TU WE TH FR SA SU
HOLD
GFCI
TRIP
HEATING
°F
P1
P2
P3
P4
LOCK
MO
M
A
HEATING
MO
SET TEMP
CYCLE
M
A
°F
HOLD
USAGE
MO
CYCLE
M
A
°F
TU WE TH FR MO
CYCLE
M
A
°F
SET BACK
FLOOR
FLOOR
MO
CYCLE
M
A
°F
FLOOR
Air Sensing and Regulator Modes
Yourthermostatisfactorysettooperatebasedontheoorsensor
temperature.Thisistherecommendedmethodtoproperlycontrolyouroor
warmingsystem.
However,itisalsopossibletoalsooperateyourthermostatineithertheair
sensingmodeorregulatormodetemporarilyiftheoorsensorwasdamaged
ornotinstalled.Anewoorsensorshouldbeinstalledtoenableoperation
inFloorSenseModeassoonaspossible.Thesemodesmustbeusedwith
cautiontoavoidoverheatingtheoor.
•AirSensingMode–Thismodeoperatesbyanairsensorinsidethe
thermostat.Ifyouroorsensorisconnected,youmustsetaFloorLimit
temperaturetoavoidoverheatingtheoorcoverings(seeFloor Limit
below).Note:the internal heating in the thermostat may affect the sensor
temperature.
•RegulatorMode–Inthismodetheuserselectstheamountoftimethe
oorwarmingsystemheatsduringa15-minuterepeatingcycle.Thereisno
temperaturesensinginthismode.(seesection5 “Operation”)
Ifyouwantittooperateintheairsensingmodeorregulatormode,youmay
changethisasfollows:
1.PresstheOPTIONSbuttonandholdfor1second.
2.PresstheOPTIONSbuttonagainuntilSENSshowsonthe
display.
3.PressthedownorupbuttontotogglethistoAirorrEGu.
4.PresstheHOLD/RETURNbuttontoreturntothenormal
operatingmode.
Floor Limit
IfyousetyourthermostattooperateinAirSenseMode,thedisplaywillshow
theairtemperaturebutwillalsomonitortheoorsensorifitisconnected.
Toavoidpossiblyoverheatingyouroor,youmustsetaFloorLimittemperature
soitturnsoffthesystemiftheoorsensortemperatureexceedsthisFloor
Limit.Somewoodandlaminateoormanufacturersrecommendamaximum
of82to84°F(27°to28°C).Checkwithmanufacturer.Itisfactorysetto99F
(37C)andcanbeadjustedasfollows:
1.PresstheOPTIONSbuttonandholdfor1second.
2.PresstheOPTIONSbuttonagainuntilSET TEMPandFLOOR
LIMITshowsonthedisplaywiththecurrentFloorLimittemperature.
3.Pressthedownorupbuttontoadjustthis.
4.PresstheHOLD/RETURNbuttontoreturntothenormaloperating
mode.
Calibration
Yourthermostatallowstheabilitytoslightlyadjustthedisplaytemperature.
Normallythisisnotrecommendednorrequired.However,inspecial
circumstancesthismaybenecessary,andcanbedoneasfollows:
1.PresstheOPTIONSbuttonandholdfor1second.
2.PresstheOPTIONSbuttonagainuntilCALshowsonthedisplay
withthecurrentsensortemperatureandthecurrentoffsetvalue.
Theoffsetvalueisfactorysettozero.
3.Pressthedownorupbuttontoadjustthis.
4.PresstheHOLD/RETURNbuttontoreturntothenormal
operatingmode.
MO
M
A
SET TEMP
LIMIT
FLOOR
°F
MO
°C
AIR
SET TEMP
SET BACK
LIMIT
FLOOR
USAGE
CYCLE
M
A
M
P
M
A
M
P
°C
°F
°C
°F
TU WE TH FR SA SU
HOLD
GFCI
TRIP
HEATING
°F
P1
P2
P3
P4
LOCK
MO
M
A
HEATING
MO
SET TEMP
CYCLE
M
A
°F
HOLD
USAGE
MO
CYCLE
M
A
°F
TU WE TH FR MO
CYCLE
M
A
°F
SET BACK
FLOOR
FLOOR
MO
CYCLE
M
A
°F
FLOOR
MO
M
A
SET TEMP
LIMIT
FLOOR
°F
MO
°C
AIR
SET TEMP
SET BACK
LIMIT
FLOOR
USAGE
CYCLE
M
A
M
P
M
A
M
P
°C
°F
°C
°F
TU WE TH FR SA SU
HOLD
GFCI
TRIP
HEATING
°F
P1
P2
P3
P4
LOCK
MO
M
A
HEATING
MO
SET TEMP
CYCLE
M
A
°F
HOLD
USAGE
MO
CYCLE
M
A
°F
TU WE TH FR MO
CYCLE
M
A
°F
SET BACK
FLOOR
FLOOR
MO
CYCLE
M
A
°F
FLOOR
MO
M
A
SET TEMP
LIMIT
FLOOR
°F
MO
°C
AIR
SET TEMP
SET BACK
LIMIT
FLOOR
USAGE
CYCLE
M
A
M
P
M
A
M
P
°C
°F
°C
°F
TU WE TH FR SA SU
HOLD
GFCI
TRIP
HEATING
°F
P1
P2
P3
P4
LOCK
MO
M
A
HEATING
MO
SET TEMP
CYCLE
M
A
°F
HOLD
USAGE
MO
CYCLE
M
A
°F
TU WE TH FR MO
CYCLE
M
A
°F
SET BACK
FLOOR
FLOOR
MO
CYCLE
M
A
°F
FLOOR
MO
M
A
SET TEMP
LIMIT
FLOOR
°F
MO
°C
AIR
SET TEMP
SET BACK
LIMIT
FLOOR
USAGE
CYCLE
M
A
M
P
M
A
M
P
°C
°F
°C
°F
TU WE TH FR SA SU
HOLD
GFCI
TRIP
HEATING
°F
P1
P2
P3
P4
LOCK
MO
M
A
HEATING
MO
SET TEMP
CYCLE
M
A
°F
HOLD
USAGE
MO
CYCLE
M
A
°F
TU WE TH FR MO
CYCLE
M
A
°F
SET BACK
FLOOR
FLOOR
MO
CYCLE
M
A
°F
FLOOR
Resetting Factory Defaults
Yourthermostathastheabilitytoresetallprogramming,settings,andusage
timestothefactorydefaults.Ifyouarecertainyouwanttodothis:
1.PresstheOPTIONSbuttonandholdfor1second.
2.PresstheOPTIONSbuttonagainuntilthesoftwareversion
Soft 1.4orsimilarshowsonthedisplay.
3.Pressthedownandupbuttonsatthesametimeandhold
for1second.Doneandrstwillshowonthedisplay.The
thermostatwillgothroughastartupmodeandreturntothe
normaloperatingmode.
MO
M
A
SET TEMP
LIMIT
FLOOR
°F
MO
°C
AIR
SET TEMP
SET BACK
LIMIT
FLOOR
USAGE
CYCLE
M
A
M
P
M
A
M
P
°C
°F
°C
°F
TU WE TH FR SA SU
HOLD
GFCI
TRIP
HEATING
°F
P1
P2
P3
P4
LOCK
MO
M
A
HEATING
MO
SET TEMP
CYCLE
M
A
°F
HOLD
USAGE
MO
CYCLE
M
A
°F
TU WE TH FR MO
CYCLE
M
A
°F
SET BACK
FLOOR
FLOOR
MO
CYCLE
M
A
°F
FLOOR
SmartStart
Yourthermostatisfactorysetwiththe“SmartStart”featureturnedon.The
thermostatautomaticallydeterminesthebesttimetobeginheatingsoit
reachesyoursetpointtemperatureatthescheduledtime.
Ifthisfeatureisnotdesired,youmayturnitoff:
1.PresstheOPTIONSbuttonandholdfor1second.
2.PresstheOPTIONSbuttonagainuntilSStshowsonthedisplay.
3.PressthedownorupbuttontotogglethisOnorOff.
4.PresstheHOLD/RETURNbuttontoreturntothenormal
operatingmode.
MO
M
A
SET TEMP
LIMIT
FLOOR
°F
MO
°C
AIR
SET TEMP
SET BACK
LIMIT
FLOOR
USAGE
CYCLE
M
A
M
P
M
A
M
P
°C
°F
°C
°F
TU WE TH FR SA SU
HOLD
GFCI
TRIP
HEATING
°F
P1
P2
P3
P4
LOCK
MO
M
A
HEATING
MO
SET TEMP
CYCLE
M
A
°F
HOLD
USAGE
MO
CYCLE
M
A
°F
TU WE TH FR MO
CYCLE
M
A
°F
SET BACK
FLOOR
FLOOR
MO
CYCLE
M
A
°F
FLOOR
Regulator Mode
Ifyousetyourthermostattooperateintheregulatormode,itwilloperatelike
atimer.Youmayadjusttheamountoftimetheoorwarmingsystemheats
duringa15-minuterepeatingcycleasfollows:
1.Withthethermostatintheregulatormode,itwillshowthe
heatingtimeandthecurrentcycletime.
2. Pressthedownorupbuttontoadjusttheheatingtimefrom0
through15.
•Example:Avalueof6willcauseittoheatfor6minutesof
 the15minutecycle,andthennotheatfor9minutesofthe15
 minutecycle.
•Zerowillcauseittoneverheat.
•15willcauseittoheatcontinuously.
3. Thecycletimeshownatthebottomofthedisplayisthecurrenttimeinthe
15-minutecycle.Itrepeatsfrom0:00through14:59(min:sec).
PPLIMP08001 IND © 2007-2010
WR_SunStat_Manual_Programmable EN 20100209 Effective: 02/09/2010

Lockout Feature
Yourthermostathastheabilitytolockoutadjustmentbyotherusers.This
maybeusefulinpubliclocations.Onlytheon/offswitchandtheGFCItest
buttonwillthenoperate.
1.Pressthedownandupbuttonatthesametimeandholdfor1second.
LOCKwillshowonthedisplay.
2. Tocancelthislockout,thedownandupbuttonmustbepressedandheld
for1second.Thethermostatwillreturntothenormaloperatingmode.
Test the GFCI
ThereisaGFCI(GroundFaultCircuitInterrupter)insidethethermostat.It
isdesignedtohelpprotectpeoplefrompossibleelectricalshockiftheoor
warmingsystemhasbeendamaged.
TomakesuretheGFCIisoperating,testitafteritisinstalledandonceeach
month:
1.MakesurethethermostatisHEATING.Youmayneedtoincreasethe
setpointtemporarily.
2. PresstheGFCITestbuttononthesideofthethermostat.GFCI TRIP
shouldshowonthedisplayandaredlightwillshownexttotheGFCITest
button.Youshouldalsohearaclick,indicatingpowerhasbeenremoved
fromtheoorwarmingsystem.Ifanyoftheseindicatorsfail,turnoffthe
thermostatandreplaceit.Donotcontinuetouse.
3. ToresettheGFCI,slidetheOn/Offswitchoffandbackon.Ifthe
GFCIdoesnotreset,turnthethermostatoffandgotosection6
“Troubleshooting” forhelp.
Limited Warranty
WattsRadiant,Inc.warrantsthisthermostatcontrolandsensor(theproduct)
tobefreefromdefectsinmaterialandworkmanshipforaperiodoftwo(2)
yearsfromthedateoforiginalpurchasefromauthorizeddealers.During
thisperiod,WattsRadiant,Inc.willreplacetheproductorrefundtheoriginal
costoftheproductatWattsRadiant’soption,withoutcharge,iftheproduct
isprovendefectiveinnormaluse.Pleasereturnthethermostattoyour
distributortobeginthewarrantyprocess.
Thislimitedwarrantydoesnotcovershippingcosts.Nordoesitcovera
productsubjectedtomisuseoraccidentaldamage.Thiswarrantydoesnot
coverthecostofinstallation,diagnosis,removalorreinstallation,orany
materialcostsorlossofuse.
Thislimitedwarrantyisinlieuofallotherwarranties,obligations,orliabilities
expressedorimpliedbythecompany.InnoeventshallWattsRadiant,Inc.
beliableforconsequentialorincidentaldamagesresultingfrominstallation
ofthisproduct.Somestatesorprovincesdonotallowlimitationsonhow
longanimpliedwarrantylasts,ortheexclusionorlimitationofincidentalor
consequentialdamages,sotheaboveexclusionsorlimitationsmaynotapply
toyou.Thiswarrantygivesyouspeciclegalrightsandyoumayalsohave
otherrightsthatvaryfromstatetostate.
5. Operation
Controlling the Temperature
Yourthermostathasseveralwaystocontrolyouroorwarmingsystem.It
isfactorysettooperateintheprogramscheduleselectedbutthiscanbe
overriddentomeetyourneeds.
Program Schedule
Thethermostatwilloperatenormallyintheprogramscheduleselected.
Whenheatiscalledfor,HEATINGwillshowonthedisplayand
fullpowerissuppliedtotheoorwarmingsystem.Thisalso
signalstoturnonanySunStatRelaysthatmaybeconnectedto
yourthermostat.
7. Specications
 PowerSupply 120/240VAC,50/60Hz
 MaximumLoad 15amps,resistive
 MaximumPower 1800wattsat120VAC
  3600wattsat240VAC
 GFCI ClassA(5milliamptrip)
 DisplayRange 32°Fto140°F(0°Cto60°C)
 SettingRange 40°Fto99°F(4°Cto37°C)
 Accuracy ±0.9°F(0.5°C)
 StorageTemp 0°Fto120°F(0°Cto49°C)
 Sensor Thermistor,10kNTC,double-insulated
 Memory Programmingretainedindenitely
  Currenttimeanddaywillneedre-set
  ifpowerislostmorethan30minutes.
 ETLListing ControlNo.3037530
  ConformstoUL873,UL943,CSAC22.2No.
24,andCAN/CSAC22.2No.144
6. Troubleshooting
Problem Solution
Thermostatworks
butnoheatfromthe
system.
1.Checkwiringconnections.
2.IfGFCIistripped,resetthermostatwithon/offswitch.
3.Checkresistancesonoorwarmingsystem.See
manualforsystem.
Nodisplay. 1.Checkwiringconnections. 2.Checkcircuitbreakerorotherprotection“upstream”of
thermostat.
GFCIistripped.
1.Checkwiringconnections.
2.Resetthermostatbyswitchingoff/on.
3.Checkresistancesonoorwarmingsystem.See
manualforsystem.
Heatingoccursat
wrongtimes.
1.Checkthatthecurrenttimeandscheduletimesare
properlysettoAMorPM.
2.OnuninsulatedconcreteSmartStartmaystartheating
veryearly.Youmayturnthisfeatureoffifnotdesired.
Er1(onlyatstartup) Floorsensornotcorrecttypeoroutofrange.Checkoor
sensorresistance.
Er2 Floorsensorshort-circuited.Turnoffpoweratbreakerand
replacesensor.OrResetFactoryDefaults(section4).
Er3 Floorsensornotattachedandthermostatinoorsense mode.Turnoffpoweratbreakerandattachsensor.Or
ResetFactoryDefaults(section4).
Er4orEr5 Internalairsensorisfaulty.Replacethermostator
operateinoorsensemode.
Er6
Internaltemperatureoverlimit.Makesuresunlightis
notdirectedatthethermostatorotherheatsourcein
proximity.Otherwise,Turnoffpoweratbreakerand
contactfactory.
Er7 “End-of-life”indication.GFCIwillnolongerfunction correctlyorsafely.Resetthecircuitbreakerorreplace
thermostat.
Temporarily Overriding the Temperature
Youcantemporarilyadjustthetemperaturesetpointasfollows.Thiswillhold
untilthenextscheduledprogramtime:
1.Pressthedownoruparrowbuttonandholdfor1secondtoadjustthe
setpointtemperature.
2. Wait5secondsandthethermostatwillreturntothenormaloperating
mode,savingyouradjustment.
3. Tocancelthistemporaryoverrideandreturntothenormal
scheduletemperature,presstheHOLD/RETURNbuttonbriey.
Hold a Selected Temperature
Youcanholdthecurrentsetpointtemperatureindenitely,
especiallyusefulwhenyouareonvacation.
1.PresstheHOLD/RETURNbuttonandholdfor1second.HOLDwillshowon
thedisplayandthesetpointtemperatureshownwillbemaintaineduntilyou
cancelthishold.
2. Tocancelthishold,presstheHOLD/RETURNbuttonandholdfor1second.
HOLDwilldisappearfromthedisplay.
3. PressHold/Returnbrieyandthethermostatwillreturntothe
normalscheduletemperature.
Setback
YoucanusetheSetbackbuttontooverridethecurrentsetpoint
temperature.Thisisespeciallyusefulifyouhaveanalternate
temperatureyourepeatedlyselectwhenyouareaway.
1.PresstheSETBACKbuttonbriey.SETBACKwillshowonthedisplayand
itstemperature.Thissetpointwillholduntilthenextscheduledprogramtime.
2. ToholdthisSetbacktemperatureindenitely,presstheHOLD/RETURN
buttonandholdfor1second.Tocancelthishold,presstheHOLD/RETURN
buttonagainandholdfor1second.
3. TocancelthisSetbacktemperatureandreturntothenormalschedule
temperature,presstheSETBACKbuttonbriey.
To change the temperature stored in the SETBACK button:
1.PresstheSETBACKbuttonandholdfor1second.SETBACKwillshowon
thedisplayanditstemperatureshouldbeblinking.
2. Pressthedownorupbuttontoadjustthetemperature.
3. PresstheHOLD/RETURNbuttonorwait5secondsandthethermostatwill
returntothenormaloperatingmode,savingyouradjustment.
Remote Control Override
IfyourthermostatwasinstalledwithRemoteControlinputfromahome
automationsystem(seesection2 “Installation”),thiswilloverridethe
thermostatwhentheremotecontrolsystemclosesitsoutputswitchorrelay.
SETBACKandHOLDwillshowonthedisplayanditwilloperateintheSetback
temperatureindenitely.Tocancelthis,theRemoteControlswitchorrelay
mustbeopened.
MO
M
A
SET TEMP
LIMIT
FLOOR
°F
MO
°C
AIR
SET TEMP
SET BACK
LIMIT
FLOOR
USAGE
CYCLE
M
A
M
P
M
A
M
P
°C
°F
°C
°F
TU WE TH FR SA SU
HOLD
GFCI
TRIP
HEATING
°F
P1
P2
P3
P4
LOCK
MO
M
A
HEATING
MO
SET TEMP
CYCLE
M
A
°F
HOLD
USAGE
MO
CYCLE
M
A
°F
TU WE TH FR MO
CYCLE
M
A
°F
SET BACK
FLOOR
FLOOR
MO
CYCLE
M
A
°F
FLOOR
MO
M
A
SET TEMP
LIMIT
FLOOR
°F
MO
°C
AIR
SET TEMP
SET BACK
LIMIT
FLOOR
USAGE
CYCLE
M
A
M
P
M
A
M
P
°C
°F
°C
°F
TU WE TH FR SA SU
HOLD
GFCI
TRIP
HEATING
°F
P1
P2
P3
P4
LOCK
MO
M
A
HEATING
MO
SET TEMP
CYCLE
M
A
°F
HOLD
USAGE
MO
CYCLE
M
A
°F
TU WE TH FR
MO
CYCLE
M
A
°F
SET BACK
FLOOR
FLOOR
MO
CYCLE
M
A
°F
FLOOR
MO
M
A
SET TEMP
LIMIT
FLOOR
°F
MO
°C
AIR
SET TEMP
SET BACK
LIMIT
FLOOR
USAGE
CYCLE
M
A
M
P
M
A
M
P
°C
°F
°C
°F
TU WE TH FR SA SU
HOLD
GFCI
TRIP
HEATING
°F
P1
P2
P3
P4
LOCK
MO
M
A
HEATING
MO
SET TEMP
CYCLE
M
A
°F
HOLD
USAGE
MO
CYCLE
M
A
°F
TU WE TH FR MO
CYCLE
M
A
°F
SET BACK
FLOOR
FLOOR
MO
CYCLE
M
A
°F
FLOOR
Usage
Yourthermostatstoresinmemorythenumberofhoursitisheating.This
informationmaybeusefulincalculatingtheenergyusedbyyouroorwarming
system.
1.PresstheOPTIONSbuttonandholdfor1second.
2. PresstheOPTIONSbuttonagainuntilUSAGEand1 dshows
onthedisplay.
3. Thetimeshownonthedisplayisthenumberofhoursitwas
heatingtoday.
4. Pressthedownorupbuttontotogglebetweentheprevious
1-day,7-day,and30-dayusages.
5. PresstheHOLD/RETURNbuttonorwait15secondsandthe
thermostatwillreturntothenormaloperatingmode.
MO
M
A
SET TEMP
LIMIT
FLOOR
°F
MO
°C
AIR
SET TEMP
SET BACK
LIMIT
FLOOR
USAGE
CYCLE
M
A
M
P
M
A
M
P
°C
°F
°C
°F
TU WE TH FR SA SU
HOLD
GFCI
TRIP
HEATING
°F
P1
P2
P3
P4
LOCK
MO
M
A
HEATING
MO
SET TEMP
CYCLE
M
A
°F
HOLD
USAGE
MO
CYCLE
M
A
°F
TU WE TH FR MO
CYCLE
M
A
°F
SET BACK
FLOOR
FLOOR
MO
CYCLE
M
A
°F
FLOOR
Air Sensing and Regulator Modes
Yourthermostatisfactorysettooperatebasedontheoorsensor
temperature.Thisistherecommendedmethodtoproperlycontrolyouroor
warmingsystem.
However,itisalsopossibletoalsooperateyourthermostatineithertheair
sensingmodeorregulatormodetemporarilyiftheoorsensorwasdamaged
ornotinstalled.Anewoorsensorshouldbeinstalledtoenableoperation
inFloorSenseModeassoonaspossible.Thesemodesmustbeusedwith
cautiontoavoidoverheatingtheoor.
•AirSensingMode–Thismodeoperatesbyanairsensorinsidethe
thermostat.Ifyouroorsensorisconnected,youmustsetaFloorLimit
temperaturetoavoidoverheatingtheoorcoverings(seeFloor Limit
below).Note:the internal heating in the thermostat may affect the sensor
temperature.
•RegulatorMode–Inthismodetheuserselectstheamountoftimethe
oorwarmingsystemheatsduringa15-minuterepeatingcycle.Thereisno
temperaturesensinginthismode.(seesection5 “Operation”)
Ifyouwantittooperateintheairsensingmodeorregulatormode,youmay
changethisasfollows:
1.PresstheOPTIONSbuttonandholdfor1second.
2.PresstheOPTIONSbuttonagainuntilSENSshowsonthe
display.
3.PressthedownorupbuttontotogglethistoAirorrEGu.
4.PresstheHOLD/RETURNbuttontoreturntothenormal
operatingmode.
Floor Limit
IfyousetyourthermostattooperateinAirSenseMode,thedisplaywillshow
theairtemperaturebutwillalsomonitortheoorsensorifitisconnected.
Toavoidpossiblyoverheatingyouroor,youmustsetaFloorLimittemperature
soitturnsoffthesystemiftheoorsensortemperatureexceedsthisFloor
Limit.Somewoodandlaminateoormanufacturersrecommendamaximum
of82to84°F(27°to28°C).Checkwithmanufacturer.Itisfactorysetto99F
(37C)andcanbeadjustedasfollows:
1.PresstheOPTIONSbuttonandholdfor1second.
2.PresstheOPTIONSbuttonagainuntilSET TEMPandFLOOR
LIMITshowsonthedisplaywiththecurrentFloorLimittemperature.
3.Pressthedownorupbuttontoadjustthis.
4.PresstheHOLD/RETURNbuttontoreturntothenormaloperating
mode.
Calibration
Yourthermostatallowstheabilitytoslightlyadjustthedisplaytemperature.
Normallythisisnotrecommendednorrequired.However,inspecial
circumstancesthismaybenecessary,andcanbedoneasfollows:
1.PresstheOPTIONSbuttonandholdfor1second.
2.PresstheOPTIONSbuttonagainuntilCALshowsonthedisplay
withthecurrentsensortemperatureandthecurrentoffsetvalue.
Theoffsetvalueisfactorysettozero.
3.Pressthedownorupbuttontoadjustthis.
4.PresstheHOLD/RETURNbuttontoreturntothenormal
operatingmode.
MO
M
A
SET TEMP
LIMIT
FLOOR
°F
MO
°C
AIR
SET TEMP
SET BACK
LIMIT
FLOOR
USAGE
CYCLE
M
A
M
P
M
A
M
P
°C
°F
°C
°F
TU WE TH FR SA SU
HOLD
GFCI
TRIP
HEATING
°F
P1
P2
P3
P4
LOCK
MO
M
A
HEATING
MO
SET TEMP
CYCLE
M
A
°F
HOLD
USAGE
MO
CYCLE
M
A
°F
TU WE TH FR MO
CYCLE
M
A
°F
SET BACK
FLOOR
FLOOR
MO
CYCLE
M
A
°F
FLOOR
MO
M
A
SET TEMP
LIMIT
FLOOR
°F
MO
°C
AIR
SET TEMP
SET BACK
LIMIT
FLOOR
USAGE
CYCLE
M
A
M
P
M
A
M
P
°C
°F
°C
°F
TU WE TH FR SA SU
HOLD
GFCI
TRIP
HEATING
°F
P1
P2
P3
P4
LOCK
MO
M
A
HEATING
MO
SET TEMP
CYCLE
M
A
°F
HOLD
USAGE
MO
CYCLE
M
A
°F
TU WE TH FR MO
CYCLE
M
A
°F
SET BACK
FLOOR
FLOOR
MO
CYCLE
M
A
°F
FLOOR
MO
M
A
SET TEMP
LIMIT
FLOOR
°F
MO
°C
AIR
SET TEMP
SET BACK
LIMIT
FLOOR
USAGE
CYCLE
M
A
M
P
M
A
M
P
°C
°F
°C
°F
TU WE TH FR SA SU
HOLD
GFCI
TRIP
HEATING
°F
P1
P2
P3
P4
LOCK
MO
M
A
HEATING
MO
SET TEMP
CYCLE
M
A
°F
HOLD
USAGE
MO
CYCLE
M
A
°F
TU WE TH FR MO
CYCLE
M
A
°F
SET BACK
FLOOR
FLOOR
MO
CYCLE
M
A
°F
FLOOR
MO
M
A
SET TEMP
LIMIT
FLOOR
°F
MO
°C
AIR
SET TEMP
SET BACK
LIMIT
FLOOR
USAGE
CYCLE
M
A
M
P
M
A
M
P
°C
°F
°C
°F
TU WE TH FR SA SU
HOLD
GFCI
TRIP
HEATING
°F
P1
P2
P3
P4
LOCK
MO
M
A
HEATING
MO
SET TEMP
CYCLE
M
A
°F
HOLD
USAGE
MO
CYCLE
M
A
°F
TU WE TH FR MO
CYCLE
M
A
°F
SET BACK
FLOOR
FLOOR
MO
CYCLE
M
A
°F
FLOOR
Resetting Factory Defaults
Yourthermostathastheabilitytoresetallprogramming,settings,andusage
timestothefactorydefaults.Ifyouarecertainyouwanttodothis:
1.PresstheOPTIONSbuttonandholdfor1second.
2.PresstheOPTIONSbuttonagainuntilthesoftwareversion
Soft 1.4orsimilarshowsonthedisplay.
3.Pressthedownandupbuttonsatthesametimeandhold
for1second.Doneandrstwillshowonthedisplay.The
thermostatwillgothroughastartupmodeandreturntothe
normaloperatingmode.
MO
M
A
SET TEMP
LIMIT
FLOOR
°F
MO
°C
AIR
SET TEMP
SET BACK
LIMIT
FLOOR
USAGE
CYCLE
M
A
M
P
M
A
M
P
°C
°F
°C
°F
TU WE TH FR SA SU
HOLD
GFCI
TRIP
HEATING
°F
P1
P2
P3
P4
LOCK
MO
M
A
HEATING
MO
SET TEMP
CYCLE
M
A
°F
HOLD
USAGE
MO
CYCLE
M
A
°F
TU WE TH FR MO
CYCLE
M
A
°F
SET BACK
FLOOR
FLOOR
MO
CYCLE
M
A
°F
FLOOR
SmartStart
Yourthermostatisfactorysetwiththe“SmartStart”featureturnedon.The
thermostatautomaticallydeterminesthebesttimetobeginheatingsoit
reachesyoursetpointtemperatureatthescheduledtime.
Ifthisfeatureisnotdesired,youmayturnitoff:
1.PresstheOPTIONSbuttonandholdfor1second.
2.PresstheOPTIONSbuttonagainuntilSStshowsonthedisplay.
3.PressthedownorupbuttontotogglethisOnorOff.
4.PresstheHOLD/RETURNbuttontoreturntothenormal
operatingmode.
MO
M
A
SET TEMP
LIMIT
FLOOR
°F
MO
°C
AIR
SET TEMP
SET BACK
LIMIT
FLOOR
USAGE
CYCLE
M
A
M
P
M
A
M
P
°C
°F
°C
°F
TU WE TH FR SA SU
HOLD
GFCI
TRIP
HEATING
°F
P1
P2
P3
P4
LOCK
MO
M
A
HEATING
MO
SET TEMP
CYCLE
M
A
°F
HOLD
USAGE
MO
CYCLE
M
A
°F
TU WE TH FR MO
CYCLE
M
A
°F
SET BACK
FLOOR
FLOOR
MO
CYCLE
M
A
°F
FLOOR
Regulator Mode
Ifyousetyourthermostattooperateintheregulatormode,itwilloperatelike
atimer.Youmayadjusttheamountoftimetheoorwarmingsystemheats
duringa15-minuterepeatingcycleasfollows:
1.Withthethermostatintheregulatormode,itwillshowthe
heatingtimeandthecurrentcycletime.
2. Pressthedownorupbuttontoadjusttheheatingtimefrom0
through15.
•Example:Avalueof6willcauseittoheatfor6minutesof
 the15minutecycle,andthennotheatfor9minutesofthe15
 minutecycle.
•Zerowillcauseittoneverheat.
•15willcauseittoheatcontinuously.
3. Thecycletimeshownatthebottomofthedisplayisthecurrenttimeinthe
15-minutecycle.Itrepeatsfrom0:00through14:59(min:sec).
PPLIMP08001 IND © 2007-2010
WR_SunStat_Manual_Programmable EN 20100209 Effective: 02/09/2010