FEATURES
SPECIFICATIONS
1
2
2
• Contemporary styling with largedisplay
• 7Day Programming Flexibility
•AC Poweredwith Battery Back-up (2AA Alkaline batteries included)
• RelayOutputs for Maximum Compatibility
• EasyAccess Front Battery Door
• Pre-programmedfor quick installation
• MeetsTitle24 and Energy Star
(Energy Saving Guidelines)
•Vacation "HOLD"Mode
• CompressorShort CycleProtection
•Adjustable 1st &2nd StageTemperature Differentials
• ResidualCooling FanDelay
• EfficientRecoveryMode (ERM™)
• Lowbattery Indication
• Multi-coloredLED Status Indicators
• QuickWiringTerminal Block
• HighTemperature SafetySwitch
INSTALLATION
3
3.1
Replacing ExistingThermostat
1.
Always turn off powerto the airconditioningorheatingsystem prior to removingexisting
thermostat.
2.
Removethe cover of yourold thermostat and locatethewireterminals. Do not remove
wires from terminals yet.
3.
Using smallpiecesof maskingtapelabelwirespriorto removalfromterminals. Usethe
chart below to determinethe new terminaldesignationsforyournew thermostat.
• ElectricalRating: 24VoltAC (18-30VoltAC)
2 ampmaximum load per terminal
4 amptotal maximum load (allterminals)
• ControlRange: 45˚ - 90˚ F(7˚ - 32˚ C)
•Accuracy: +/- 1˚F (+/- .5˚ C)
•AC Power: 18-30VoltAC
• DCBack-Up Power:3.0Volt DC (2AAAlkaline batteries included)
• Compatibility:Multi-stage heatpump systems
with upto two stages ofheating andtwo stages
of cooling.
•Terminations: R,Y1,Y2,W2,E, G,O,B, L,C
OldTerminal from NewTerminal for
ExistingThermostat NewThermostat Terminal Description
R,V-VR orVR-R R 24VoltAC
Y,Y1or M Y1 Stage 1Coolingor Heating
Y2 Y2 Stage 2Cooling
W1,W2 orW-U W2 Stage 2Heating
E E Emergency Heating
Gor F G FanControl
Oor R O ReversingValve(Cooling)
B B ReversingValve(Heating)
Lor X L System StatusLED
C,Xor B C 24VoltAC,Transformer Common
3
INSTALLATION
3
3.1
Replacing ExistingThermostat cont.
4.
After labelingandremovingall wires from terminals,unscrewtheexisting thermostat
mountingbasefromwall. Makesureto securewiresto preventthemfromslipping
backintotheholein thewall.
NOTE: Thisthermostat is foruse on low voltage 24VoltAC multi-stage heat pump
systems withup to two stagesof heating andtwo stages ofcooling and requires a
transformer commonwire for proper installation.This thermostatis not foruse on
single stageheating orcooling systems.
Illustration ofround and rectangular
mechanical thermostatexploded
views.
3.2
Installing YourNew Thermostat
NOTE: Ifyou are installing thisthermostat in anew installation be sureto locate
the thermostat4 to 5feet above the floor inaccordance with applicable building
codes. Make sureto install the thermostat in alocation that providesgood airflow
characteristics andavoid areas behind doors,near corners,air vents,direct sunlight
or nearany heat generatingdevice. Installation inanyof theseareas could impact
thermostat performance.
1.
Always turn off powerto the airconditioningorheatingsystem prior to installingyournew
thermostat.
2.
Place systemswitchon frontof thermostatto OFF position.
3.
Place fan control switchon frontofthermostatto AUTOposition.
4.
Removefrontof thermostatbodyfromrear body by pressing releaselatchon bottomof
front body.
5.
Place the thermostatrearbody(mounting plate)againstwallin the desired thermostat
location.
6.
Guide thermostat wiresthroughcenter hole in rearbody. Continueto holdrearbody
againstwall.
cont.
