Johnson Controls TEC-2647-4 User manual

FlexSys BACnet®MS/TP Networked Thermostat
TEC - 2647 - 4
Model:
©2016 Johnson Controls | The performance specications are nominal and conform to acceptable industry standards. For applications at conditions beyond these specications, consult the local
Johnson Controls ofce. Johnson Controls, Inc. shall not be liable for damages resulting from misapplication or misuse of its products.
© 2016 AirFixture, LLC
1
Installation / Operation Manual
V160916
TEC26x7-4 Series BACnet® MS/TP Networked Thermostat Controllers with Two
Outputs Installation Instructions
Applications
The TEC26x7-4 Series Thermostat Controllers are
BACnet® Master-Slave/Token-Passing (MS/TP)
networked devices that provide control of local
hydronic reheat valves, pressure dependent Variable
Air Volume (VAV) equipment with or without local
reheat, or other zoning equipment using an on/off,
floating, or proportional 0 to 10 VDC control input. The
technologically advanced TEC26x7-4 Series
Thermostat Controllers feature a Building Automation
System (BAS) BACnet MS/TP communication
capability that enables remote monitoring and
programming for efficient space temperature control.
The TEC26x7-4 Series Thermostat Controllers feature
an intuitive user interface with backlit display that
makes setup and operation quick and easy. The
thermostat controllers also employ a unique,
Proportional-Integral (PI) time-proportioning algorithm
that virtually eliminates temperature offset associated
with traditional, differential-based thermostat
controllers.
North American Emissions Compliance
United States
Canada
Installation
Location Considerations
Locate the TEC26x7-4 Series Thermostat Controller:
• on a partitioning wall, approximately 5 ft (1.5 m)
above the floor in a location of average
temperature
• 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
TEC26x7-4 Series Thermostat Controller.
IMPORTANT: The TEC26x7-4 Series 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.
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.
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.

FlexSys BACnet®MS/TP Networked Thermostat
TEC - 2647 - 4
Model:
©2016 Johnson Controls | The performance specications are nominal and conform to acceptable industry standards. For applications at conditions beyond these specications, consult the local
Johnson Controls ofce. Johnson Controls, Inc. shall not be liable for damages resulting from misapplication or misuse of its products.
© 2016 AirFixture, LLC
2
Installation / Operation Manual
V160916
TEC26x7-4 Series BACnet® MS/TP Networked Thermostat Controllers with Two Outputs Installation
Instructions
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 controller
cover and open the thermostat controller as
illustrated in Figure 1.
3. Carefully pull the locking tabs on the right side of
the thermostat controller mounting base and
unlock the Printed Circuit Board (PCB). Open the
PCB to the left as illustrated in Figure 2.
4. Pull approximately 6 in. (152 mm) of wire from the
wall and insert the wire through the hole in the
thermostat controller mounting base.
5. Align the thermostat controller mounting base on
the wall and use the base as a template to mark
the two mounting hole locations.
6. Position the thermostat mounting base so that the
arrow on the base points upward to indicate the top
of the thermostat.
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.
Note: For surface-mount applications, use
durable mounting hardware such as Molly bolt
anchors that cannot be easily pulled out of the
mounting surface.
7. Secure the base to the wall surface using two
mounting screws as illustrated in Figure 3.
Note: Be careful not to overtighten the mounting
screws.
8. Swing the PCB back to the right and carefully snap
it into the locking tabs on the thermostat controller
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.
Figure 1: Removing the Thermostat
Controller Cover
FIG:cvr_rmvl
Figure 2: Opening the Thermostat Controller PCB
FIG:prcrctbrd
PCB
Locking
Ta b s
Figure 3: Securing the Thermostat Controller
Mounting Base to the Wall
FIG:mntbs

FlexSys BACnet®MS/TP Networked Thermostat
TEC - 2647 - 4
Model:
©2016 Johnson Controls | The performance specications are nominal and conform to acceptable industry standards. For applications at conditions beyond these specications, consult the local
Johnson Controls ofce. Johnson Controls, Inc. shall not be liable for damages resulting from misapplication or misuse of its products.
© 2016 AirFixture, LLC
3
Installation / Operation Manual
V160916
TEC26x7-4 Series BACnet® MS/TP Networked Thermostat Controllers with Two Outputs Installation
Instructions
Wiring
When an existing thermostat controller is replaced,
remove and label the wires to identify the terminal
functions. When a TEC26x7-4 Series Thermostat
Controller is replaced, simply remove the old screw
terminal blocks and reinsert them onto the PCB of the
replacement thermostat controller.
To wire the thermostat controller:
1. Strip the ends of each wire 1/4 in. (6 mm) and
connect them to the appropriate screw terminals as
indicated in Table 1 and Figure 5 through
Figure 18.
Note: For more details on wiring the MS/TP
Communications Bus, refer to the MS/TP
Communications Bus Technical Bulletin
(LIT-12011034).
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.
3. Reinsert the screw terminal blocks onto the PCB.
4. Reattach the MS/TP communication wires to the
terminal block.
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.
5. Reattach the thermostat controller cover to the
mounting base (top side first).
6. Use a Phillips-head screwdriver to reinstall the
security screw on the bottom of the thermostat
controller cover.
IMPORTANT: Because some of the objects may
not directly correlate to a previous version, you must
rediscover all point objects for the TEC26x7-4
version. For detailed information on this mapping,
refer to the TEC BACnet® MS/TP Network Series
Thermostat Controllers Technical Bulletin
(LIT-12011592).
!
CAUTION: Risk of Electric Shock.
Disconnect the power supply before
making electrical connections to avoid
electric shock.
Figure 4: Removing the Screw Terminal Blocks
FIG:trmnl_blcks
!
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.
IMPORTANT: Make all wiring connections in
accordance with local, national, and regional
regulations. Do not exceed the electrical ratings of
the TEC26x7-4 Series Thermostat Controller.

FlexSys BACnet®MS/TP Networked Thermostat
TEC - 2647 - 4
Model:
©2016 Johnson Controls | The performance specications are nominal and conform to acceptable industry standards. For applications at conditions beyond these specications, consult the local
Johnson Controls ofce. Johnson Controls, Inc. shall not be liable for damages resulting from misapplication or misuse of its products.
© 2016 AirFixture, LLC
4
Installation / Operation Manual
V160916
TEC26x7-4 Series BACnet® MS/TP Networked Thermostat Controllers with Two Outputs Installation
Instructions
4
Table 1: Terminal Identification (See Figure 5.)
Terminal
Number
Terminal Label Function
TEC2627-4
(On/Off or
Floating Control)
TEC2647-4
(Proportional
0 to 10 VDC Control)
4 24 V~ Hot 24 V~ Hot 24 VAC from Transformer
5 24 V~ Com 24 V~ Com 24 VAC (Common) from Transformer
6 BO5 Aux BO5 Aux Aux BO (Auxiliary Output)
7 BO5 Aux BO5 Aux Aux BO (Auxiliary Output)
8 BO3 Blank Open Heat
9 BO4 AO2 Close Heat
10 BO1 AO1 Open Cool
11 BO2 Blank Close Cool
12 BI1 BI1 Configurable Binary Input 1
13 RS RS Remote Sensor
14 Scom Scom Sensor Common
15 BI2 BI2 Configurable Binary Input 2
16 UI3 UI3 Configurable Universal Input 3
Blank +, –, REF +, –, REF MS/TP Bus

FlexSys BACnet®MS/TP Networked Thermostat
TEC - 2647 - 4
Model:
©2016 Johnson Controls | The performance specications are nominal and conform to acceptable industry standards. For applications at conditions beyond these specications, consult the local
Johnson Controls ofce. Johnson Controls, Inc. shall not be liable for damages resulting from misapplication or misuse of its products.
© 2016 AirFixture, LLC
5
Installation / Operation Manual
V160916
TEC26x7-4 Series BACnet® MS/TP Networked Thermostat Controllers with Two Outputs Installation
Instructions
5
Figure 5: Wiring the TEC26x7-4 Series Thermostat Controller (See Table 1.)
FIG:wrng_26x7
–
+REF
Supervisory
Controller
BI2 UI3
BI1
Scom
- OR -
Remote Inputs
Supply Sensor
Changeover Sensor
Voltage-Free
Contact
• COC/NH
Normally Heat
Closed Contact
= Cold Water
• COC/NC
Normally Cool
Closed Contact
= Hot Water
Voltage-Free
Contact
• Door
• Remote
Override
• Filter Alarm
• Service Alarm
Voltage-Free
Contact
• Remote NSB
• Motion
• Window
Three-Pole
Right Top
Connector
9 10 11 12 13 14 15 16
REF
–
+
BO2
BO5
Aux
BO5
Aux
Scom
BO1/
AO1
UI3
BI1 BI2
BO3
Two-Pole
Left Top
Connector
24 V~
Hot
24 V~
Com
BO4/
AO2
RS
Same 24 VAC
Power Source for Auxiliary Output
(24 VAC Maximum)
Separate 24 VAC
Power Source for Auxiliary Output
(24 VAC Maximum)
BO5
Aux
BO5
Aux
24 VAC
Thermostat Power
24 V~
Com
24 V~
Hot
BO5
Aux
BO5
Aux
Aux Contact
(Isolated Common)
• Reheat
• Lighting
• On/Off Actuation
• Exhaust Fan
Aux
Aux
24 VAC
Thermostat Power
24 V~
Com
24 V~
Hot
Eight-Pole Bottom Connector
4 5
6 7 8

FlexSys BACnet®MS/TP Networked Thermostat
TEC - 2647 - 4
Model:
©2016 Johnson Controls | The performance specications are nominal and conform to acceptable industry standards. For applications at conditions beyond these specications, consult the local
Johnson Controls ofce. Johnson Controls, Inc. shall not be liable for damages resulting from misapplication or misuse of its products.
© 2016 AirFixture, LLC
6
Installation / Operation Manual
V160916
TEC26x7-4 Series BACnet® MS/TP Networked Thermostat Controllers with Two Outputs Installation
Instructions
Figure 6: Wiring the TEC2627-4 Thermostat Controller for Floating Control
(Pressure-Dependent VAV Cooling Only)
Room Temperature Control Thermostat
(Minimum and Maximum Position
Adjusted on Actuator)
Floating
Actuator
UI3 COS
24 V~ Com
24 V~ Hot
BO1 Open
BO2 Close
FIG:tec2627_clng_only
Figure 7: Wiring the TEC2647-4 Thermostat Controller for Proportional 0 to 10 VDC Control
(Pressure-Dependent VAV Cooling Only)
Room Temperature Control Thermostat
(Minimum and Maximum Position
Adjusted on Actuator)
Proportional
Actuator
FIG:tec2647_clng_only
0 to 10
VDC
UI3 COS
24 V~ Com
24 V~ Hot
AO1
Figure 8: Wiring the TEC2627-4 Thermostat Controller for Floating Control
(Pressure-Dependent VAV Heating/Cooling with Changeover)
FIG:tec2627_htng_cl
ng_chngvr
Changeover
Sensor
Room Temperature Control Thermostat
(Minimum and Maximum Position
Adjusted on Actuator)
Floating
Actuator
Supply Air
Temperature Sensor
UI3 COS
24 V~ Com
24 V~ Hot
BO1 Open
BO2 Close

FlexSys BACnet®MS/TP Networked Thermostat
TEC - 2647 - 4
Model:
©2016 Johnson Controls | The performance specications are nominal and conform to acceptable industry standards. For applications at conditions beyond these specications, consult the local
Johnson Controls ofce. Johnson Controls, Inc. shall not be liable for damages resulting from misapplication or misuse of its products.
© 2016 AirFixture, LLC
7
Installation / Operation Manual
V160916
TEC26x7-4 Series BACnet® MS/TP Networked Thermostat Controllers with Two Outputs Installation
Instructions
7
Figure 9: Wiring the TEC2647-4 Thermostat Controller for Proportional 0 to 10 VDC Control
(Pressure-Dependent VAV Heating/Cooling with Changeover)
FIG:tec2647_htng_clng_chngvr
Changeover
Sensor
Room Temperature Control Thermostat
(Minimum and Maximum Position
Adjusted on Actuator)
Proportional
Actuator
Supply Air
Temperature Sensor
0 to 10
VDC
UI3 COS
24 V~ Com
24 V~ Hot
AO1
Figure 10: Wiring the TEC2627-4 Thermostat Controller for Floating Control
(Pressure-Dependent VAV Heating Cooling with Changeover and Reheat)
FIG:tec2627_htng_clng_chngvr
_rht
Changeover
Sensor
Room Temperature Control Thermostat
(Minimum and Maximum Position
Adjusted on Actuator)
Heating/Cooling
and On/Off
Duct Heater
Floating
Actuator
Supply Air
Temperature Sensor
1
C
UI3 COS
24 V~ Com
24 V~ Hot
BO1 Open
BO2 Close
BO5-Aux
BO5-Aux
Figure 11: Wiring the TEC2647-4 Thermostat Controller for Proportional 0 to 10 VDC Control
(Pressure-Dependent VAV Heating/Cooling with Changeover and Reheat)
FIG:tec2647_htng_clng_chngvr_rht
Changeover
Sensor
Room Temperature Control Thermostat
(Minimum and Maximum Position
Adjusted on Actuator)
Heating/Cooling
and On/Off
Duct Heater
Proportional
Actuator
Supply Air
Temperature Sensor
1
C
0 to 10
VDC
UI3 COS
24 V~ Com
24 V~ Hot
AO1
BO5-Aux
BO5-Aux
AO2

FlexSys BACnet®MS/TP Networked Thermostat
TEC - 2647 - 4
Model:
©2016 Johnson Controls | The performance specications are nominal and conform to acceptable industry standards. For applications at conditions beyond these specications, consult the local
Johnson Controls ofce. Johnson Controls, Inc. shall not be liable for damages resulting from misapplication or misuse of its products.
© 2016 AirFixture, LLC
8
Installation / Operation Manual
V160916
TEC26x7-4 Series BACnet® MS/TP Networked Thermostat Controllers with Two Outputs Installation
Instructions
8
Figure 12: Wiring the TEC2627-4 Thermostat Controller for Floating Control
(Heating/Cooling Hydronic Valve Control)
FIG:tec2627_htng_clng_hdrn
c
Room Temperature
Control Thermostat
UI3 COS
24 V~ Com
24 V~ Hot
BO1 Open
BO2 Close
Figure 13: Wiring the TEC2647-4 Thermostat Controller for Proportional 0 to 10 VDC Control
(Heating/Cooling Hydronic Valve Control)
FIG:tec2647_htng_clng_hdrnc
Room Temperature
Control Thermostat
0 to 10
VDC
UI3 COS
24 V~ Com
24 V~ Hot
AO1
Figure 14: Wiring the TEC2627-4 Thermostat Controller for Floating Control
(Heating/Cooling Hydronic Valve Control with Changeover)
FIG:tec2627_htng_clng_hdr
nc_chngvr
Floating
Heating/Cooling
Val ve
Optional Water
Supply Sensor
Room Temperature
Control Thermostat Supply Water
Temperature Sensor
UI3 COS
24 V~ Com
24 V~ Hot
BO1 Open
BO2 Close

FlexSys BACnet®MS/TP Networked Thermostat
TEC - 2647 - 4
Model:
©2016 Johnson Controls | The performance specications are nominal and conform to acceptable industry standards. For applications at conditions beyond these specications, consult the local
Johnson Controls ofce. Johnson Controls, Inc. shall not be liable for damages resulting from misapplication or misuse of its products.
© 2016 AirFixture, LLC
9
Installation / Operation Manual
V160916
TEC26x7-4 Series BACnet® MS/TP Networked Thermostat Controllers with Two Outputs Installation
Instructions
Figure 15: Wiring the TEC2647-4 Thermostat Controller for Proportional 0 to 10 VDC Control
(Heating/Cooling Hydronic Valve Control with Changeover)
FIG:tec2647_htng_clng_hdrnc_chngvr
Proportional
Heating/Cooling
Val ve
Optional Water
Supply Sensor
Room Temperature
Control Thermostat
Supply Water
Temperature Sensor
0 to 10
VDC
UI3 COS
24 V~ Com
24 V~ Hot
AO1
Figure 16: Wiring the TEC2627-4 Thermostat Controller for On/Off Control
Two-Pipe Applications Four-Pipe Applications
TEC2627onoff
24 V~
Com
24 V~
Hot
or
24 V~
Com
24 V~
Hot
Cooling
Val ve
or
Heating
Val ve
or
Figure 17: Wiring the TEC2627-4 Thermostat Controller for Floating Control
Two-Pipe Applications Four-Pipe Applications
TEC2627floating
24 V~
Com
24 V~
Hot
BO1
Cooling
Val ve
Heating
Val ve
BO2 BO3 BO4
24 V~
Com
24 V~
Hot
BO1
Heating/Cooling
Val ve
BO2

FlexSys BACnet®MS/TP Networked Thermostat
TEC - 2647 - 4
Model:
©2016 Johnson Controls | The performance specications are nominal and conform to acceptable industry standards. For applications at conditions beyond these specications, consult the local
Johnson Controls ofce. Johnson Controls, Inc. shall not be liable for damages resulting from misapplication or misuse of its products.
© 2016 AirFixture, LLC
10
Installation / Operation Manual
V160916
TEC26x7-4 Series BACnet® MS/TP Networked Thermostat Controllers with Two Outputs Installation
Instructions
Connecting the MS/TP Bus
To connect the MS/TP Bus:
1. Set the MS/TP address of the TEC BACnet MS/TP
Network Series Thermostat Controller per the
engineering drawings and test for bus voltage,
polarity, and isolation prior to wiring the MS/TP
Bus. Use the Com addr parameter to set the
MS/TP address for the thermostat controller.
Note: The wiring rules for the MS/TP Bus differ
from the wiring rules for the N2 Bus. For more
details on wiring the MS/TP Communications Bus,
refer to the MS/TP Communications Bus Technical
Bulletin (LIT-12011034).
2. Observe the polarity when connecting the bus
wires to the thermostat controller.
3. After the bus wires are connected to the first
thermostat controller, continue in a daisy-chained
fashion to the next thermostat controller.
Note: The bus wiring must be twisted-pair lines.
Do not run the bus wiring in the same conduit as
line voltage wiring (30 VAC or above) or other
wiring that switches power to highly inductive loads
(such as contactors, coils, motors, or generators).
The MS/TP Bus requires proper termination and
biasing at each end of a segment (a segment is a
physically continuous length of wire). Because the
rooftop controller is not equipped with end-of-line
termination, a Johnson Controls MS-BACEOL-0
End-of-Line Terminator (see Table 5; ordered
separately) or similar device is recommended to
provide this end-of-line termination. An end-of-line
terminator is required if a supervisory controller is not
at the end of the segment. If a supervisory controller is
at the end of the segment, then the end-of-line
terminator switch on the supervisory controller must be
set in the ON position.
The thermostat controller has automatic baud rate
detection. Do not exceed the maximum number of
devices allowed on a field bus. Be sure that the wiring
terminations are set correctly and that all
communication wiring is daisy-chained with no taps.
A small green light under the thermostat controller
cover (on the left edge when facing the thermostat
controller) indicates the communications mode when
the thermostat controller is operating.
The following blink codes may be seen:
•Short-Short-Long: Indicates that the baud rate is
known and that communication is active.
•Short-Short: Indicates that the thermostat
controller is scanning for the correct baud rate and
that there is no communication.
•Off: Indicates that there is no power to the
thermostat controller or that the MS/TP wiring
polarity is reversed.
•Long: Indicates that the MS/TP communication
daughter board is the wrong type for the main
board.
MS/TP Thermostat Controller Mapping
For detailed information on MS/TP Bus objects and
thermostat controller mapping, refer to the TEC
BACnet MS/TP Network Series Thermostat Controllers
Technical Bulletin (LIT-12011592).
Figure 18: Wiring the TEC2647-4 Thermostat Controller for Proportional Control
Two-Pipe Applications Four-Pipe Applications
TEC2647proportional
Heating/Cooling
Val ve
24 V~
Com
24 V~
Hot
AO1 AO2
Cooling
Val ve
Heating
Val ve
24 V~
Com
24 V~
Hot
AO1