Johnson Controls TEC2145-4 Catalog Page

Code No. LIT-1900629

TEC2145-4 N2 Networked

Thermostat Controller

Issued February 8, 2010

TEC2145-4

N2 Networked Thermostat Controller with Single Proportional Output
and One-Speed Fan Control

Description

The TEC2145-4 Thermostat Controller is an
N2 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 TEC2145-4
Thermostat Controller features a Building
Automation System (BAS) N2 Bus
communication capability that enables remote
monitoring and programming for efficient
space temperature control.

The TEC2145-4 Thermostat Controller
features an intuitive User Interface (UI) 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.

Refer to the TEC2145-4 N2 Networked

Thermostat with Single Proportional Output
and One-Speed Fan Control Product Bulletin
(LIT-12011603) for important product

application information.

Features

• BAS N2 open communication — provides
compatibility with a proven communication
network; N2 Bus 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 to adapt to any application,
allowing installer parameter access without
opening the thermostat cover

• optional discharge air sensor — monitors
unit efficiency

Repair Information

If the TEC2145-4 Thermostat Controller fails to
operate within its specifications, replace the
unit. For a replacement thermostat controller,
contact the nearest Johnson Controls®
representative.

Selection Chart

Code Number Description Applications

TEC2145-4 Networked N2 Bus, Two-Pipe, Proport i onal

0 to 10 VDC Control Output, and One-Speed
Fan Control Thermostat Controller

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

Accessories

Code Number Description

TEC-6-PIR
TE-636M-1
SEN-600-4

TE-636S-1 Strap-Mount Temperature Sensor

1. The TEC-6-PIR Accessory Cover can be used to replace the existing cover on a non-PIR TEC2145-4 Thermostat Controller to provide occupancy sensing

2. Additional TE-636xx-x Series 10k ohm Johnson Controls Type II Thermistor Sensors are available; refer to the TE-6300 Series Temperature Sensors Product

3. Only the occupancy override function can be accomplished using the SEN-600-4 with the TEC2145-4.

The performance specifications are nomina l and conf orm to accep table industr y standar ds. For ap plications a t condition s beyond th ese specification s, consult the local Johnson Controls o ffice.
Johnson Controls, Inc. shall not be liable for damages resulting from misapplication or misuse of its products. © 2012 Johnson Controls, Inc.

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capability.
Bulletin (LIT-216320) for more details.

Cover with Occupancy Sensor
Duct Mount Air Temperature Sensor
Remote Indoor Air Temperature Sensor with Occupancy Override and LED

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TEC2145-4 N2 Networked Thermostat Controller with Single Proportional Output and

Thermostat Dimensions, in. (mm)

70.0ºF

Room Temp

(125)

3-3/8

(86)

(29)

FIG:dmnsns_2145

One-Speed Fan Control (Continued)

4-15/16

1-1/8

Technical Specifications

TEC2145-4 N2 Networked Thermostat Controller with Single Proportional Output and One-Speed Fan Control

Power Requirements 19 to 30 VAC, 50/60 Hz, 2 VA (Terminals 4 and 5) at 24 VAC Nominal, Class 2 or SafetyExtra-Low Voltage (SELV)
Analog Output Rating 0 to 10 VDC into 2k ohm Resistance (Minimum)
Fan Relay Output Rating 19 to 30 VAC, 1.0 A Maximum, 15 mA Mini mum, 3.0 A Inrush, Class 2 or SELV
Auxiliary Output

Rating
Analog Inputs Resistive Inputs (RS and UI3) for 10k ohm Johnson Controls Type II Negative Temperature Coefficient (NTC)

Binary Inputs Voltage-Free Contacts Across Terminal Scom to Terminals BI1, BI2, or UI3
Wire Size 18 AWG (1.0 mm Diameter) Maximum, 22 A WG (0.6 mm Diameter) Recommended
Thermostat Controller Measurement

Range
Sensor Type Local 10k ohm Johnson Controls Type II NTC Thermistor Sensor
Resolution ±0.2F°/±0.1C°
Control Accuracy ±0.9F°/±0.5C° at 70.0°F/21.0°C Typical Calibrated
Temperature Range Backlit Display -40.0°F/-40.0°C to 122.0°F/50.0°C in 0.5° Increments

Default Minimum Deadband 2F°/1C° between Heating and Cooling
Ambient Conditions Operating 32 to 122°F (0 to 50°C); 95% RH Maximum, Noncondensing

Compliance United States UL Listed, File E27734, CCN XAPX, Under UL 873, Temperature Indicating and Regulating Equipment

Shipping Weight 0.75 lb (0.34 kg)

Triac Output 19 to 30 VAC, 1.0 A Maximum, 15 mA Mini mum, 3.0 A Inrush

Thermistor Sensors

-40.0°F/-40.0°C to 122.0°F/50.0°C

Heating Control 40.0°F/4.5°C to 90.0°F/32.0°C
Cooling Control 54.0°F/12.0°C to 100.0°F/38.0°C

Storage -22 to 122°F (-30 to 50°C); 95% RH Maximum, Noncondensing

FCC Compliant to CFR 47, Part 15, Subpart B, Class A

Canada UL Listed, File E27734, CCN XAPX7,

Europe CE Mark, EMC Directive 2004/108/EC
Australia and New

Zealand

Under CAN/CSA C22.2 No. 24, TemperatureIndicating and Regulating Equipment
Industry Canada, ICES-003

C-Tick Mark, Australia/NZ Emissions Compliant

The performance specifications are nomina l and conf orm to accep table industr y standar ds. For ap plications a t condition s beyond th ese specification s, consult the local Johnson Controls o ffice.
Johnson Controls, Inc. shall not be liable for damages resulting from misapplication or misuse of its products. © 2012 Johnson Controls, Inc.

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