Johnson Controls TEC2245-4 Catalog Page

TEC2245-4

TEC2245-4 LONWORKS Network

Thermostat Controller

Code No. LIT-1900634
Issued February 8, 2010

LONW

ORKS

® Network Thermostat Controller with Single Proportional

Output and One-Speed Fan Control

Description

The TEC2245-4 Thermostat Controller is a
L

ONWORKS® network 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 TEC2245-4 Thermostat Controller
features a Building Automation System (BAS)

ONWORKS communication capability that

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enables remote monitoring and programming
for efficient space temperature control.

The TEC2245-4 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 TEC2245-4 L

Thermostat with Single Proportional Output
and One-Speed Fan Control Product Bulletin
(LIT-12011609) for important product

application information.

ONWORKS® Network

Features

•LONWORKS network communication —
provides compatibility with a proven
communication network; L
network is widely accepted by Heating,
Ventilating, and Air Conditioning (HVAC)
control suppliers

ONWORKS

• 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 TEC2245-4 Thermostat Controller fails to
operate within its specifications, replace the
unit. For a replacement thermostat controller,
contact the nearest Johnson Controls®
representative.

Selection Chart

Thermostat Controller Models

Code Number Description Applications

TEC2245-4 LONWORKS network, Two-Pipe, Proportional 0 to 10 VDC 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 TEC2245-4 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 TEC2245-4.

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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2

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

Output, and One-Speed FanControl Thermostat Controller

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

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Control of Two-Pipe Fan Coils, Cabinet Unit Heater s, or Other
Equipment Using a Proportional 0 to 10 VDC Control Input and
One-Speed Fan Control

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TEC2245-4 LONWORKS® Network Thermostat Controller with Single Proportional

Thermostat Dimensions, in. (mm)

70.0ºF

Room Temp

(125)

3-3/8

(86)

(29)

FIG:dmnsns_2245

Output and One-Speed Fan Control (Continued)

4-15/16

1-1/8

Technical Specifications

TEC2245-4 LONWORKS Network 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 In-Rush
Auxiliary Output

Rating
Analog Inputs Resistive Inputs (RS and UI3) for 10k ohm Johnson Controls Type I I Negat ive Temperature Coefficient (NTC)

Binary Inputs Voltage-Free Contacts across Terminal Scom to Terminals BI1, BI2, or UI3
Wire Size Unshielded Twisted Pair - 22 AWG (0.6 mm Diameter) Minimum, 18 AWG (1.0 mm Diameter) Recommended

ONWORKS Network Standard 64 Devices Maximum without a Repeater, 127 Devices Maximum with a Repeater;

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Thermostat Controller Measurement
Range

Sensor Type Local 10k ohm NTC Thermistor
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)

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.

Triac Output 19 to 30 VAC, 1.0 A Maximum, 15 mA Mini mum, 3.0 A In-Rush

Thermistor Sensors

6,250 ft (1,905 m) Maximum (Bus Topology)

-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 in 0.5° Increments
Cooling Control 54.0°F/12.0°C to 100.0°F/38.0°C in 0.5° Increments

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

Canada UL Listed, File E27734, CCN XAPX7,

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

Zealand

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

ONMARK® Certification 3.4

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

C-Tick Mark, Australia/NZ Emissions Compliant

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