Venstar T1045 Owner's Manual

Venstar Inc. 05/08Digital ThermostatDigital ThermostatresidentialT1045THERMOSTATStages: 2-Heat, 1-CoolBattery or System PoweredAuxiliary Heat In

Sample Wiring Diagrams4 Wire, 1 Stage Cooling, 1 Stage Heat-Heat Pump with B reversing valve.Residential Heat Pumps, split systems & package units

Sample Wiring Diagrams5 Wire, 1 Stage Cooling, 2 Stage Heat-Heat Pump with B reversing valve.Residential Heat Pumps, split systems & package units

Page 12Turn on the power to the Heat Pump.Test OperationOn the thermostat, slide the Aux Heat Switch to the NORMAL position. The Aux Heat icon will a

Page 13Test OperationOn the thermostat, slide the Mode Switch to OFF. Slide the Fan Switch to Fan On. The fan should turn on and run continuously.On

Page 14Trouble ShootingSYMPTOM: The slide switches on the thermostat are very difficult to move.CAUSE: The backplate of the thermostat is

Page 15Trouble ShootingSYMPTOM: Aux Heat does not turn on.CAUSE: The Aux Heat Switch is set for Lockout.REMEDY: Consult the Aux Heat section

Page 16WarrantyOne-Year Warranty - This Product is warranted to be free from defects in material and workmanship. If it appears within

Page 2ContentsPage #Remove Old ThermostatSafety WarningsPreparationBattery ReplacementWarrantyTest OperationTroubleshootingWire ConnectionsT1045INSTAL

The two Alkaline “AA” batteries must be replaced at least once every 12 months to ensure proper operation. The Low Battery icon (fig. 1) will appear

Page 4These tools will be required: Flat BladeScrewdriverWire cutter& StripperMake sure your Heater/Air Conditioneris working properly before begi

Remove the cover of the old thermostat.If it does not come off easily check forscrews.Loosen the screws holding the thermostatbase or subbase to the w

Page 6T1045INSTALLATION INSTRUCTIONSSuPMI2:00:Battery ReplacementThe batteries must be replaced immediately when the thermostatdisplays the low batter

Page 7T1045INSTALLATION INSTRUCTIONSSuPMI2:00:Wire ConnectionsIf the terminal designations on your oldthermostat do not match those on the new thermos

Sample Wiring Diagrams4 Wire, 1 Stage Cooling, 1 Stage Heat-Heat Pump with O reversing valve.Residential Heat Pumps, split systems & package units

Sample Wiring Diagrams5 Wire, 1 Stage Cooling, 2 Stage Heat-Heat Pump with O reversing valve.Residential Heat Pumps, split systems & package units