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Johnson Controls TEC2645-4 - #, BACnet 2 Pipe, Networked Thermostat, Proportional Output, 1 Speed Fan

Item: TEC2645-4
MFR: TEC2645-4
This product is no longer available for purchase.
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TEC2645-4 BACnet® MS/TP Networked Thermostat Controller with Single Proportional Output and One-Speed Fan Control. The TEC2645-4 Thermostat Controller is a BACnet® Master-Slave/Token-Passing (MS/TP) networked device that provides control of two-pipe fan coils, cabinet unit heaters, or other equipment using a proportional 0 to 10 VDC control input and one-speed fan control. The technologically advanced TEC2645-4 Thermostat Controller features a Building Automation System (BAS) BACnet MS/TP communication capability that enables remote monitoring and programming for efficient space temperature control. The TEC2645-4 Thermostat Controller features an intuitive user interface with backlit display that makes setup and operation quick and easy. The thermostat controller also employs a unique, Proportional-Integral (PI) control algorithm that virtually eliminates temperature offset associated with traditional, differential-based thermostat controllers.

Features and Benefits:
  • BACnet MS/TP Communication - Provides compatibility with a proven communication network; BACnet MS/TP is widely accepted by Heating, Ventilating, and Air Conditioning (HVAC) control suppliers.
  • Password Protection Option - Protects against unwanted thermostat controller tampering.
  • Backlit Liquid Crystal Display (LCD) - Offers real-time control status of the environment in easy-to-read, plain text messages with constant backlight that brightens during user interaction.
  • Proportional 0 to 10 VDC Control - Offers additional application flexibility by providing more advanced control signals.
  • Single/Dual Setpoint Adjustment - Enables user setpoint options to accommodate application.
  • Override Interface Key - Allows easy access for temporarily overriding the unoccupied mode.
  • Simplified Setpoint Adjustment - Enables the user to change the setpoint by simply pressing the UP/DOWN arrow keys.
  • Two Configurable Binary Inputs - Provide additional inputs for advanced functions such as remote night setback, service or filter alarms, motion detector, and window status.
  • Over 20 Configurable Parameters Enable the thermostat controller to adapt to any application, allowing installer parameter access without opening the thermostat cover.


NameJohnson Controls TEC2645-4 - #, BACnet 2 Pipe, Networked Thermostat, Proportional Output, 1 Speed Fan
BrandJohnson Controls
Gemaire Item NumberTEC2645-4
Manufacturer Product NumberTEC2645-4
SKU - PIM Number1405423017258
ERP Number323983
Unit of MeasureEA
Weight0.3 Pounds (Lb)
Length6.0 Inches (In)
Width4.3 Inches (In)
Height2.0 Inches (In)
Hazardous MaterialNo
EPA Cert RequiredNo
Country of OriginCAN
Voltage24 VAC
Electrical Connectionunknown
Electrical Ratingunknown
Power MethodHardwired
Batteries IncludedNo
750mV CompatibleYes
Auto ChangeoverYes
Built In Wi-FiNo
Change/Check RemindersNo
Daylight Savings Time ReadyNo
Digital-Non ProgrammableNo
Display Optionsyes
Displays Outdoor TemperatureNo
Heat Pump CompatibleNo
Indoor Remote SensorYes
Low Battery IndicatorNo
Programmable FanYes
Stages Cool1
Stages Heat1
Temperature Settings per Day2
Vacation ModeYes
Battery BackupNo
Ambient Temperature Range40 to 90
Application2 Pipe
Dual Transformer CompatibleYes
Fan SwitchingYes
Number of HVAC Zones1
Operating Temperature Range40°F (4.4°C)
Removable InterfaceYes
System SwitchingYes
Temperature Range40°F to 100°F (4.4°C to 37.7°C)
Terminal Designationsyes
Warranty Offeredunknown
GEM - Case Quantity


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