For the best Gemaire experience, please update your web browser.

Honeywell T841A1738 - Heat Pump Thermostat Manual Changeover 2 Heat/1 Cool

Item: T841A1738
MFR: T841A1738/U

This product is no longer available for purchase.

Comparable Products


Honeywell Heat Pump Thermostat Manual Changeover 2 Heat/1 Cool
The T841A heating-cooling TRADELINE® thermostat provides 24 Vac control of two-staging heating and 1 stage cooling in heat pump systems, using manual changeover. This thermostat provides system switch selections of emergency heat, heat, off, cool & fan switch selections of auto-on.


NameHoneywell T841A1738 - Heat Pump Thermostat Manual Changeover 2 Heat/1 Cool
Gemaire Item NumberT841A1738
Manufacturer Product NumberT841A1738/U
SKU - PIM Number1389112012634
ERP Number31519
Unit of MeasureEA
Weight0.6 Pounds (Lb)
Length2.1 Inches (In)
Width3.5 Inches (In)
Height5.3 Inches (In)
Country of OriginMEX
Voltage20-30 VAC
Batteries IncludedNo
750mV CompatibleNo
Auto ChangeoverNo
Built In Wi-FiNo
Change/Check RemindersNo
Daylight Savings Time ReadyNo
Digital-Non ProgrammableNo
Displays Outdoor TemperatureNo
Heat Pump CompatibleNo
Indoor Remote SensorNo
Low Battery IndicatorNo
Programmable FanNo
Stages Cool1
Stages Heat2
Temperature Settings per Day0
Vacation ModeNo
Battery BackupNo
Dual Transformer CompatibleNo
Fan SwitchingYes
Removable InterfaceNo
System SwitchingYes
Temperature Range55°F to 95°F (12.7°C to 35°C)
Terminal DesignationsT,Y,W2,W3,E,G,X,O,B
Warranty OfferedYes
Accuracy2°F; 1°C
Switch Action1st Stage SPDT; Second Stage SPST
Ambient Temperature Range45°F to 85°F (7.2°C to 29.4°C)
Switch TypeMercury
CertificationsCertified; File No. LR95329-6
ApplicationHeat Pump Systems
CSA CertifiedYes
Sensing ElementYes
GEM - Case Quantity

Parts List