Johnson Controls TEC20x6-4 Series, TEC20x6H-4+PIR Series, TEC20x6H-4 Series Installation Instructions Manual

TEC20x6(H)-4 and TEC20x6H-4+PIR Series Wireless Thermostat
Controllers with Dehumidification Capability, Fan Control, and
Occupancy Sensing Capability

Installation Instructions

Part No. 24-9890-1095, Rev. B

Issued July 13, 2010

Supersedes May 17, 2010

Applications

The TEC Series Wireless Thermostat Controller
System provides wireless networked control of
Heating, Ventilating, and Air Conditioning (HVAC)
equipment on a Building Automation System (BAS)
that enables remote monitoring and programming. This
TEC Series System integrates into a supervisory
controller that uses BACnet® Internet Protocol (IP) or
BACnet Master-Slave/Token-Passing (MS/TP)
communications.

TEC20 Coordinators allow the supervisory controlle r to
communicate with multiple TEC Wireless Thermostat
Controllers. TEC20x6(H)-4 and TEC20x6H-4+PIR
Series Wireless Thermostat Controllers control two- or
four-pipe fan coils, cabinet unit heaters, or other
equipment using on/off, floating, or proportional
0 to 10 VDC control input, three speeds of fan control,
and dehumidification capability.

The TEC20x6H-4+PIR Series Thermostat Controllers
have occupancy sensing capability built into the device.
These devices maximize up to 30% energy savings in
high-energy usage light commercial buildings, such as
schools and hotels, during occupied times by using
additional standby setpoints. See the Occupancy

Sensor Operation – TEC20x6H-4+PIR Series
Thermostat Controllers section for more information.

The wireless mesh network uses ZigBee™ technology
to enable remote monitoring and programming and to
enhance reliability by providing redundant transmission
paths through other TEC Wireless Thermostat
Controllers, creating a resilient, self-healing mesh
network.

IMPORTANT: The TEC20x6(H)-4 and
TEC20x6H-4+PIR Series Wireless Thermostat
Controllers are intended to provide an input to
equipment under normal operating conditions.
Where failure or malfunction of the thermostat
controller could lead to personal injury or property
damage to the controlled equipment or other
property, additional precautions must be designed
into the control system. Incorporate and maintain
other devices, such as supervisory or alarm systems
or safety or limit controls, intended to warn of or
protect against failure or malfunction of the
thermostat controller.

North American Emissions Compliance

United States

This equipment has been tested and found to
comply with the limits for a Class A digital device
pursuant to Part 15 of the FCC Rules. These limits
are designed to provide reasonable protection
against harmful interference when this equipment is
operated in a commercial environment. This
equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in
accordance with the instruction manual, may cause
harmful interference to radio communications.
Operation of this equipment in a residential area is
likely to cause harmful interference, in which case
the user will be required to correct the interference
at his/her own expense.

RF Transmitters: Compliance Statement (Part 15.19)

This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:

TEC20x6(H)-4 and TEC20x6H-4+PIR Series Wireless Thermostat Controllers with

1. This device may not cause harmful interference, and

2. This device must accept any interference received,
including interference that may cause undesired
operation.

Warning (Part 15.21)

Changes or modifications not expressly approved by
the party responsible for compliance could void the
user’s authority to operate the equipment

Dehumidification Capability, Fan Control, and Occupancy Sensing Capability

.

1

Canada

Figure 1: Removing the Cover

FIG:cvr_ rmvl

This Class (A) digital apparatus meets all the
requirements of the Canadian Interference-Causing
Equipment Regulations.

Cet appareil numérique de la Classe (A) respecte
toutes les exigences du Règlement sur le matériel
brouilleur du Canada.

RF Transmitters: Industry Canada Statement

The term IC before the certification/registration number
only signifies that the Industry Canada technical
specifications were met.

Le terme « IC » précédant le numéro d'accréditation/
inscription signifie simplement que le produit est
conforme aux spécifications techniques d'Industrie
Canada.

Installation

Location Considerations

Locate a thermostat controller:

• on a partitioning wall, approximately 1.5 m (5 ft)
above the floor in a location of average
temperature

For detailed information on locating devices for
optimum signal strength, refer to the Wireless Metasys
System Location Guide (LIT-12011294).

Installing the Thermostat Controller

Follow these steps to install the thermostat controller:

1. Use a Phillips-head screwdriver to remove the
security screw if it is installed on the bottom of the
thermostat controller cover.

Note: Normally, the security screw is packaged
separately in a plastic bag with the thermostat
controller. Skip this step if the screw is not installed
on the bottom of the cover.

2. Pull the bottom edge of the thermostat cover and
open the thermostat as illustrated in Figure 1.

Note: PIR Models have a wiring connection
between the cover and the Printed Circuit Board
(PCB). This connection allows for proper wiring of
the occupancy sensor . Car efully remove the wiring
connection from the PCB by pulling up on the
connector block. Do not attempt to remove the
connector block by pulling on the wires.

• away from direct sunlight, radiant heat, outside
walls, behind doors, air discharge grills, stairwells,
or outside doors

• away from steam or water pipes, warm air stacks,
unconditioned areas (not heated or cooled), or
sources of electrical interference

Note: Allow for vertical air circulation to the
TEC20x6(H)-4 and TEC20x6H-4+PIR Series
Thermostat Controllers.

For integrated Passive Infrared (PIR) models, make
sure the thermostat controller is located centrally,
where occupant movement is frequent.

Wireless Signal Transmission Range

Line-of-sight transmission ranges between a
TEC20 Coordinator and a TEC Wireless Thermostat
Controller (or between TEC Wireless Thermostat
Controllers) can be less than the recommended
distances shown in Table 1. The effective transmission
range for indoor applications varies because of Radio
Frequency (RF) signal absorption and re flectio n due to
metal obstructions, walls (or floors), and furniture found

in typical building interiors.

Table 1: Recommended Transmission Ranges

Type Distance

Through Walls 10 m (32.8 ft)
Open Space 30 m (98.4 ft)

TEC20x6(H)-4 and TEC20x6H-4+PIR Series Wireless Thermostat Controllers with Dehumidification

2

Capability, Fan Control, and Occupancy Sensing Capability

3. Carefully pull the locking tabs on the right side of

Figure 2: Opening the PCB

F

I

G

:

p

r

n

t

_

c

i

r

c

_

Tabs

Figure 3: Securing the

Mounting Base to the Wall

Figure 4: Removing the Screw Terminal Blocks

the mounting base and unlock the PCB. Open the
PCB to the left as illustrated in Figure 2.

PCB
Locking

d

r

b

4. Pull approximately 152 mm (6 in.) of wire from the
wall and insert the wire through the hole in the
mounting base.

5. Align the mounting base on the wall, and use the
base as a template to mark the two mounting hole
locations.

Note: If you need to install the thermostat on an
electrical junction box, use 2-1/2 x 4 in.
(63 x 101 mm) square boxes with mud ring covers,
and avoid smaller 1-1/2 x 4 in. (38 x 101 mm)
square or 3 x 2 in. (76 x 51 mm) boxes. This
procedure ensures you have enough space for
cabling and end-of-line devices, if needed.

s

b

_
g

n

t

n
m

:
G

I
F

8. Swing the PCB back to the right, and carefully
snap it into the locking tabs on the mounting base.

9. Remove the screw terminal blocks that are
attached to a disposable adhesive. Figure 4
illustrates the locations of the screw terminal
blocks on the thermostat controller.

Note: For surface-mount applications, use
durable mounting hardware such as Molly bolt
anchors that cannot be easily pulled out of the
mounting surface.

6. Position the thermostat mounting base on the wall
so that the arrow on the base points upward to
indicate the top of the thermostat.

7. Secure the mounting base to the wall surface using
two mounting screws as illustrated in Figure 3.

Note: Be careful not to overtighten the mounting
screws.

s
k

c

l

b

_

l

n
m

r

t

:
G

I
F

TEC20x6(H)-4 and TEC20x6H-4+PIR Series Wireless Thermostat Controllers with Dehumidification

3

Capability, Fan Control, and Occupancy Sensing Capability

Wiring

!

!

CAUTION: Risk of Electric Shock.

Disconnect the power supply before
making electrical connections to avoid
electric shock.

CAUTION: Risk of Property Damage.

Do not apply power to the system before
checking all wiring connections. Short
circuited or improperly connected wires
may result in permanent damage to the
equipment.

To wire the thermostat controller:

1. Strip the ends of each wire 6 mm (1/4 in.) and
connect them to the appropriate screw terminals as
indicated in Figure 5.

Note: If multiple wires are inserted into the screw
terminals, be sure to properly twist the wires
together prior to inserting them into the screw
terminals.

2. Carefully push any excess wire back into the wall.
Note: Seal the hole in the wall with fireproof

material to prevent drafts from affecting the
ambient temperature readings.

IMPORTANT: Make all wiring connections in
accordance with local, national, and regional
regulations. Do not exceed the electrical ratings of
the thermostat controller.

When replacing an existing thermostat controller,
remove and label the wires to identify the terminal
functions. When replacing a thermostat controller of the
same model, simply remove the old screw terminal
blocks and reinsert them onto the PCB of the
replacement thermostat controller.

3. Reinsert the screw terminal blocks onto the PCB.
Note: If multiple wires are inserted into the

terminals, be sure to properly twist the wires
together prior to inserting them into the terminal
connectors.

4. Reattach the cover to the mounting base (top side
first).

5. Use a Phillips-head screwdriver to reinstall the
security screw on the bottom of the cover.

TEC20x6(H)-4 and TEC20x6H-4+PIR Series Wireless Thermostat Controllers with Dehumidification

4

Capability, Fan Control, and Occupancy Sensing Capability

See Figure 5, Figure 6, Figure 7, and Table 2 for

Fan

-H

Three-Pole
Right Top
Connector

BO2

BO5

Aux

BO1/
AO1

UI3

BI1

BI2

Fan

-M

Fan

-L

24 V~

Hot

Com

BO4/

AO2

Left T o p Connector

1 2 3 4 5

F

I

G

:

T

E

C

2

0

x

6

H

2

_

T

R

M

N

L

S

Figure 5: TEC20x6(H)-4 and TEC20x6H-4+PIR

Series Thermostat Controller Terminals

Figure 6: TEC20x6(H)-4 and TEC20x6H-4+PIR Series Thermostat Controller with

Separate Power Source for Auxiliary Contact

Scom

Contact

• COC/NH

= Cold Water

• COC/NC
Normall y Cool

= Hot Water

Voltage-Free
Contact

• Door

• Remote
Override

• Filter Alarm

• Service Alarm

Voltage-Free
Contact

• Remote NSB

• Motion

• Window

(24 VA C Maximum )

BO5

Aux

BO5

Aux

24 VAC

Thermostat Power

24 V~

Com

24 V~

Hot

Power and Fan

Aux Contact
(Isolated Co m m on)

• Reheat

• Lighting

• Exhaust Fan

Aux

Fan

-H

Fan

-M

Fan

-L

information on wiring the thermostat controllers.

Five-Pole

24 V~

BO5

BO3

Aux

6 7 8

Eight-Pole Bottom Connector

Scom

RS

9 10 11 12 13 14 15 16

Separate 24 VAC

Power Source for Auxiliary Output

TEC20x6(H)-4 and TEC20x6H-4+PIR Series Wireless Thermostat Controllers with Dehumidification

Capability, Fan Control, and Occupancy Sensing Capability

• On/Off Actuation

Remote Inputs

BI1

- OR -

Supply S ensor
Changeover Sensor

FIG:TEC20x6 H4_SEP

BI2 UI3

Voltage-Free

Normally Heat
Closed Contact

Closed Contact

5

Figure 7: TEC20x6(H)-4 and TEC20x6H-4+PIR Series Thermostat Controller with

Same Power Source for Auxiliary Contact

Scom

Contact

• COC/NH

= Cold Water

• COC/NC
Normally C ool

= Hot Water

Voltage-Free
Contact

• Door

• Remote
Override

• Filter Alarm

• Service Alarm

Voltage-Free
Contact

• Remote NSB

• Motion

• Window

C

Power Source for Auxiliary Output

(24 VA C Maximum)

Power and Fan

BO5

Aux

BO5

Aux

• Reheat

• Lighting

• On/Off Actuation

• Exhaust Fan

Aux

24 VAC

24 V~

Com

24 V~

Hot

Fan

-H

Fan

-M

Fan

-L

Same 24 VA

Aux Contact
(Isolated Co m m on)

BI1

Remote Inputs

BI2

FIG:TEC20x6 H4_SAM

UI3

Voltage-Free

Thermostat Power

Table 2: TEC20x6(H)-4 and TEC20x6H-4+PIR Series Thermostat Controller Terminals

Terminal
Number

TEC2016-4,
TEC2016H-4,
TEC2016H-4+PIR
(On/Off Control)

Terminal Label by Model Function

TEC2026-4,
TEC2026H-4,
TEC2026H-4+PIR
TEC2036-4,
TEC2036H-4,
TEC2036H-4+PIR
(On/Off or Floating
Control)

1 Fan-H Fan-H Fan-H Fan On – High
2 Fan-M Fan-M Fan-M Fan On – Medium
3 Fan-L Fan-L Fan-L Fan On – Low
4 24 V~ Hot 24 V~ Hot 24 V~ Hot 24 VAC from Transformer
5 24 V~ Com 24 V~ Com 24 V~ Com 24 VAC from Transformer

6 BO5 Aux BO5 Aux BO5 Aux Auxiliary Binary Output
7 BO5 Aux BO5 Aux BO5 Aux Auxiliary Binary Output
8 BO3 BO3 Blank Open Heat

10 Blank BO1 AO1 Open Cool

9 Blank BO4 AO2 Close Heat

11 BO2 BO2 Blank Close Cool
12 BI1 BI1 BI1 Configurable Binary Input 1
13 RS RS RS Remote Sensor
14 Scom Scom Scom Sensor Common
15 BI2 BI2 BI2 Configurable Binary Input 2
16 UI3 UI3 UI3 Configurable Universal Input 3

TEC20x6(H)-4 and TEC20x6H-4+PIR Series Wireless Thermostat Controllers with Dehumidification

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Capability, Fan Control, and Occupancy Sensing Capability

TEC2046-4,
TEC2046H-4,
TEC2046H-4+PIR,
TEC2056-4,
TEC2056H-4,
TEC2056H-4+PIR
(Proportional
0 to 10 VDC Control)

- OR -

Supply S ensor
Changeover Sensor

(Common)

Normally H eat
Closed Contact

Closed Contact

Sample Applications

Figure 8: Wiring TEC2016(H)-4 and TEC2016H-4+PIR Thermostat Controllers for On/Off Control

24 V~

Com

24 V~

Hot

BO2

Two -Pip e Applic ations

Four-Pipe Applications

Com

N.O.

Heating

Valve

24 V~

Hot

BO3

N.C.

Cooling

Valve

Figure 9: Wiring TEC2026(H)-4, TEC2026H-4+PIR, TEC2036(H)-4, and TEC2036H-4+PIR

Thermostat Controllers for On/Off Control

Two -Pip e Applicat ions

FIG:TEC2026H4_TEC2036H4_onoff

24 V~

Com

24 V~

Hot

or

Com

Hot

Cooling

Valve

or

Heating

Valve

or

Figure 10: Wiring TEC2026(H)-4, TEC2026H-4+PIR, TEC2036(H)-4, and TEC2036H-4+PIR

Thermostat Controllers for Floating Control

Four-Pipe Applications

FIG:TEC2026H4_TEC203 6H4_flt

Com

Hot

BO1

Cooling

Valve

Heating

Valve

24 V~

Com

24 V~

Hot

BO1

Heating/Cooling

Valve

BO2

Figure 8 through Figure 11 show sample applications
for these thermostat controllers.

24 V~

24 V~

FIG:TEC2016 H4_onoff

24 V~

Two -Pip e Applic ations

Four-Pipe Applications

24 V~

BO2 BO3

BO4

24 V~

TEC20x6(H)-4 and TEC20x6H-4+PIR Series Wireless Thermostat Controllers with Dehumidification

Capability, Fan Control, and Occupancy Sensing Capability

7

Setup and Adjustments

Figure 11: Wiring TEC2046(H)-4, TEC2046H-4+PIR, TEC2056(H)-4, and TEC2056H-4+PIR

Thermostat Controllers fo r Pr oportional Control

Two -Pip e Applic ations

Four-Pipe Applications

FIG:TEC2046H4_TEC2056H4_prop

Heating/Cooling

Valve

Com

Hot

Cooling

Valve

Heating

Valve

24 V~

Com

24 V~

Hot

AO1

Figure 12: Front Cover (TEC20x6H-4+PIR Model Shown)

70.0ºF

FIG:TEC20x6(H)PIR_wrlss_

Status LED beneath cover

indicates network status.

Five keys on the therm ost at controll er
make operation easy and intuitive.

Backl i t, plain t ex t

Liquid Crystal Display (LCD)

is easy to rea d in any conditio n.

Light-Emitting Diodes (LEDs)
indicate system acti vi t y.

PIR mot io n detector

saves ener gy using

standby se tp oi nt s.

AO1

AO2

24 V~

24 V~

Thermostat Controller User Interface Keys

The user interface consists of keys on the front cover
(Figure 12). The function of each key is as follows:

• MODE key toggles among the system modes
available, as defined by selecting the appropriate
operation sequence in the Installer Configuration
Menu (Off, Heat, Cool, Auto).

• FAN key toggle s am on g th e fan mode s available,
as defined by selecting the appropriate fan menu
options defined in the Installer Configuration Menu
(Low, Med, High, Auto).

• OVERRIDE key (commercial models) overrides

the unoccupied mode to occupied at the local user
interface for the specified TOccT ime. (T OccTime is
defined by selecting the appropriate time period in
the Installer Configuration Menu.)

TEC20x6(H)-4 and TEC20x6H-4+PIR Series Wireless Thermostat Controllers with Dehumidification

8

Capability, Fan Control, and Occupancy Sensing Capability

Room Temp

• °C/°F key (hospitality models) changes the

• UP/DOWN arrow keys change the configuration

frntvw

If one of the binary inputs is configured to operate
as a remote override contact, this OVERRIDE
function is disabled. The OVERRIDE key also
allows access to the Installer Configuration Menu.
(See the Configuring the Thermostat Controller
section.)

temperature scale to either Celsius or Fahrenheit
and allows access to the Installer Configuration
Menu. (See the Configuring the Thermostat
Controller section.)

Note: For hospitality models, binary inputs can
override from the unoccupied mode to occupied
mode.

parameters and activate a setpoint adjustment.