FEATU RESSPECIFICATIONS
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•Contemporary styling with large display
•7 Day Programming Flexibility
•AC Powered with Battery Back-up (2 AA Alkaline batteries included)
•Relay Outputs for Maximum Compatibility
•Easy Access Front Battery Door
•Pre-programmed for quick installation
•Meets Title 24 and Energy Star
(EnergySaving Guidelines)
•Vacation "HOLD" Mode
•Compressor Short Cycle Protection
•Adjustable 1st & 2nd Stage TemperatureDifferentials
•Residual Cooling Fan Delay
•Efficient Recovery Mode (ERM™)
•Low battery Indication
•Multi-colored LED Status Indicators
•Quick Wiring TerminalBlock
•High Temperature Safety Switch
INSTA LLATI ON
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3.1 ReplacingExisting Thermostat
1.
Alwaysturn offpower to the air conditioning or heatingsystem prior to removing existing
thermostat.
2.
Removethe coverof your old thermostat and locatethe wire terminals. Do not remove
wiresfrom terminalsyet.
3.
Usingsmall piecesof masking tape label wires priorto removal from terminals. Use the
chartbelow to determinethe new terminal designationsfor your new thermostat.
•Electrical Rating: 24 Volt AC (18-30 Volt AC)
2amp maximum load per terminal
4amp total maximum load (all terminals)
•Control Range: 45˚ - 90˚ F (7˚ - 32˚ C)
•Accuracy: +/-1˚ F (+/- .5˚ C)
•AC Power: 18-30Volt AC
•DC Back-Up Power: 3.0 Volt DC (2AA Alkaline batteries included)
•Compatibility: Multi-stage heat pump systems
withup to two stages of heating and two stages
ofcooling.
•Terminations: R,Y1, Y2, W2, E,G, O, B,L, C
OldTerminal from NewTerminal for
ExistingThermostat NewThermostat TerminalDescription
R,V-VRor VR-R R 24Volt AC
Y,Y1or M Y1 Stage1Cooling or Heating
Y2 Y2 Stage2Cooling
W1,W2 orW-U W2 Stage2Heating
E E EmergencyHeating
Gor F G FanControl
Oor R O ReversingValve(Cooling)
B B ReversingValve(Heating)
Lor X L SystemStatus LED
C,X or B C 24VoltAC, Transformer Common
3INSTA LLATI ON
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3.1 ReplacingExisting Thermostat cont.
4.
Afterlabelingand removing all wires from terminals,unscrew the existingthermostat
mountingbasefrom wall. Make sure to secure wiresto prevent them from slipping
backinto the holein the wall.
NOTE: Thisthermostat is for use on low voltage 24 Volt AC multi-stage heat pump
systemswith up to two stages of heating and two stages of cooling and requires a
transformercommon wire for proper installation. This thermostat is not for use on
singlestage heating or cooling systems.
Illustrationof round and rectangular
mechanicalthermostat exploded
views.
3.2 InstallingYour New Thermostat
NOTE: Ifyou are installing this thermostat in a new installation be sure to locate
thethermostat 4 to 5 feet above the floor in accordance with applicable building
codes. Make sure to install the thermostat in a location that provides good airflow
characteristicsand avoid areas behind doors, near corners, air vents, direct sunlight
ornear any heat generating device. Installation in any of these areas could impact
thermostatperformance.
1.
Alwaysturn offpower to the air conditioning or heatingsystem prior to installingyour new
thermostat.
2.
Placesystemswitch on front of thermostat to OFF position.
3.
Placefan controlswitch on front of thermostat toAUTO position.
4.
Removefrontof thermostat body from rear body by pressingrelease latch on bottom of
frontbody.
5.
Placethe thermostatrear body (mounting plate)against wall in the desired thermostat
location.
6.
Guidethermostatwires through center hole inrear body. Continue to holdrear body
againstwall.
cont.