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Lux P521U - Digital 5-2 Day Programmable/Manual, 2 Heat/1 Cool, Universal Thermostat

Item: P521U
MFR: P521U
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Digital 5-2 Day Programmable/Manual, 2 Heat/1 Cool, Universal Thermostat.
  • Separate Weekday and Weekend Programs (2 or 4 periods/day)
  • Large Display with Back light
  • Adjust Heating and Cooling Limits
  • Keyboard Lock
  • Programmable Air Filter Monitor
  • Selectable Smart Recovery
  • Dual Power - 2 AA Batteries Included
  • User Selectable Programmable or Non-Programmable Operation
  • Manual Temperature Hold
  • Temporary Temperature Override
  • Adjustable Temp. Differential Cycle Rate
  • Adjustable 2nd Heat Stage Offset Setting
  • User Temperature Calibration
  • 5/2 Minute Selectable Time Delay
  • Battery Free Memory Storage
  • 12/24 Hour Clock Display
  • Optional Wall Plate Available


NameLux P521U - Digital 5-2 Day Programmable/Manual, 2 Heat/1 Cool, Universal Thermostat
Gemaire Item NumberP521U
Manufacturer Product NumberP521U
SKU - PIM Number1366804189485
ERP Number341430
Unit of MeasureEA
Weight0.5 Pounds (Lb)
Length1.5 Inches (In)
Width4.8 Inches (In)
Height5.5 Inches (In)
Country of OriginCHN
Voltage24 VAC
Electrical Connection24 VAC
Electrical Rating1.5 Amps per terminal at 24 Volts AC
Power MethodDual Powered: Battery or Hardwired
Batteries IncludedYes
750mV CompatibleYes
Auto ChangeoverNo
Built In Wi-FiNo
Change/Check RemindersYes
Daylight Savings Time ReadyNo
Digital-Non ProgrammableYes
Display OptionsLCD
Displays Outdoor TemperatureNo
Heat Pump CompatibleYes
Indoor Remote SensorNo
Low Battery IndicatorYes
Programmable FanNo
Stages Cool1
Stages Heat2
Temperature Settings per Day4
Vacation ModeNo
Battery BackupYes
Accuracy+ or - 1 degree
Sensing ElementNo
Ambient Temperature Range45°F to 90°F (7.2°C to 32.2°C)
Application2 Heat 1 Cool
Differential Temperature+ or - 1 degree
Dual Transformer CompatibleNo
Fan SwitchingNo
Number of HVAC Zones1
Operating Temperature Range14°F to 122°F (-10°C to 50°C)
Removable InterfaceNo
Switch ActionNo
System SwitchingNo
Temperature Range45°F to 90°F (7.2°C to 32.2°C)
Terminal DesignationsO, B, G, Y, RC, RH, W1, A, W2, C
Warranty OfferedYes
Energy Star RatedNo
Inside Width5 1/4"
Inside Depth1"
Inside Height3 1/4"
IncludesInstallation Kit and Manual
Cycle/Hertz60 Hz
GEM - Case Quantity


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