Use and Care Manual

5
2) Select FA or SL (Fast or Slow) Heating Cycle Rate - The
FAsettingisfrequentlyusedforgas,oilorelectricheat.The
SLsettingproducesalongerheatingcyclewhichisnormally
for hot water or steam(hydronic) systems. Both settings
produceveryaccuratetemperaturecontrolandcanbeset
toyourpersonalpreference.FAcyclesthesystemjustunder
1°FandtheSLsettingcyclesatapproximately1.5°F.
3) Select Display Backlight (d-L OFF or ON) - The display
backlightimprovesdisplaycontrastinlowlightingconditions.
SelectingbacklightONwillkeepthelightonforashortperiod
oftimeafteranykeyispressed.SelectingOFFwillkeepthe
light off.
4) Select filter replacement run time - The thermostat will
display "FILTER" after the selected time of operation. This is
aremindertochangeorcleanyourairlter.Thistimecanbe
setfrom0to1950hoursin50hourincrements.A selection
of 000 will cancel this feature. When "FILTER"isdisplayed,
youcanclearitbypressing
and at the same time.
This resets the timer and starts counting the hours until the
nextlterchange.
5) Select Compressor Lockout (LOC OFF or ON)-Selecting
LOCONwillcausethethermostattowait5minutesbefore
turning on the compressor if the heating and cooling system
losespower.Itwillalsowait5minutesminimumbetween
cooling cycles. This is intended to help protect the compres-
sorfromshortcycling.Somenewercompressorsalready
haveatimedelaybuiltinanddonotrequirethisfeature.
Your compressor manufacturer can tell you if the feature is
already present in their system. When the compressor time
delayoccursitwillashthe(snowakeicon)foraboutve
minutes then turn on the compressor.
6) Select Temperature Display Adjustment (4 LO to 4
HI)-Allowsyoutoadjusttheroomtemperaturedisplay4°
higherorlower.Yourthermostatwasaccuratelycalibrated
atthefactorybutyouhavetheoptiontochangethedisplay
temperature to match your previous thermostat.
7) Select Temperature DIsplay (°F or °C) -Changesthedisplay
readouttoCelsiusorFahrenheitasrequired.
OPERATING FEATURES
Nowthatyouarefamiliarwiththethermostatbuttonsanddisplay,
readthefollowinginformationtolearnaboutthemanyfeatures
of the thermostat.
• SIMULTANEOUS HEATING/COOLING SETPOINT STOR-
AGE —Youcanenterbothyourheatingandcoolingset
points at the same time. There is no need to change the
thermostatatthebeginningofeachseason.
• CONFIGURATION MENU — Allows you to customize
certain thermostat options.
SETTING THE THERMOSTAT
This thermostat is very easy to operate. Set the SYSTEM
switch to either HEAT or COOL then press
or until the
temperature you want to maintain is shown on the right side
ofthedisplay.Ifyouwanttoturnthesystemoff,justmovethe
SYSTEMswitchtoOFF.
The FAN switch controls the fan operation. When the FAN
switch is set to AUTO,thefanwillcyclewiththefurnaceorair
conditioner.WhentheFANswitchissettoON,thefanwillrun
continuously,regardlessofSYSTEMswitchposition.
TROUBLESHOOTING
No Heating
With the SYSTEM switch set to HEAT, when the setpoint
temperatureisraisedorloweredpasttheroomtemperature,
thethermostatwillmakeasoftclicksound.Usually,thesound
indicatesthe thermostat isoperating correctly.If thesystem
doesnotcomeon,checkthesystemorcontactyourheating/
coolingserviceperson.Ifthethermostatdoesnotclicktrythe
ResetOperationlistedbelow.
No Cooling
SameprocedureasheatingexceptsetSYSTEMswitchtoCOOL.
Therecanbeuptoa5minutecompressorlock-outtimedelay
beforethethermostatclicksinCOOL.
Blank Display
A blank digital display usually indicates the thermostat has
receivedavoltagespike,staticdischargeorrequiresnewbat-
teries.Ifthedisplayremainsblankafterreplacingthebatteries,
seeResetOperationbelow.
Reset Operation
Ifavoltagespikeorstaticdischargeblanksoutthedisplayor
causes erratic thermostat operation you can reset the thermostat
bypressing
, andmovetheSYSTEMswitchfromOFF to
HEAT at the same time. This also resets the factory defaults
to the configuration menu.Ifthethermostathaspower,has
beenreset andstill doesnot functioncorrectly contactyour
heating/coolingservicepersonorplaceofpurchase.
OPERATION