System Status........................................................................................................................................... 53
Control Status........................................................................................................................................... 53
BAS Only Points........................................................................................................................................ 54
Related documentation............................................................................................................................... 61
Single point of contact................................................................................................................................. 62
TEC3000 Color Series Field-Selectable BACnet MS/TP or N2 Networked and Wireless Thermostat Controllers
Technical Bulletin
Introduction
This document describes how to configure the various wireless and wired TEC3000 Series
Thermostat Controllers for BACnet MS/TP or N2 networked applications, including how to:
•Connect to the MS/TP or N2 bus and map a thermostat controller into a Network Automation
Engine (NAE)
•Add a thermostat controller
•Add points
•Command and configure from an NAE
•Troubleshoot the thermostat controller
Product overview
The technologically advanced TEC3000 Series Thermostat Controllers feature a Building Automation
System (BAS) BACnet MS/TP or N2 connectivity that enables remote monitoring and programming
for efficient space temperature control. The TEC3000 Series Thermostat Controllers feature an
intuitive user interface with backlit color display that makes setup and operation quick and easy.
The programming memory of all TEC3000 Series Thermostat Controllers is non-volatile.
In addition, the configuration can be backed up to a USB drive and restored to like models to
help expedite the commissioning process. Refer to the TEC3000 Series On/Off or Floating Fan Coil
Thermostats Installation Guide (LIT-12013161), TEC3000 Series Proportional Fan Coil Thermostats
Installation Guide (LIT-12013162), or TEC3000 Series Networked and Wireless Single- or Two-Stage
Economizer Thermostat Controllers Installation Guide (LIT-12013163) for information on using the USB
drive.
The TEC3000 Series Thermostat Controllers are BACnet MS/TP, N2, or ZFR Wireless networked
devices that provide control of:
•Rooftop units (with or without economizers, dehumidification, or hot gas bypass)
•Heat pumps
•Single- and multi-stage heating and cooling equipment
•Humidification and dehumidification equipment
•Two- or four-pipe fan coils
•Cabinet unit heaters
•Local hydronic reheat valves
•Pressure-dependent Variable Air Volume (VAV) equipment with or without local reheat
•Other individual zone equipment using an on/off, floating, or proportional 0 VDC to 10 VDC
control input
Proportional Fan Coil and Individual Zone Thermostat
Controllers
The TEC3000 Series Proportional Fan Coil and Individual Zone Thermostat Controllers are fieldselectable BACnet MS/TP, N2, or ZFR Wireless networked devices that provide control of:
•Local hydronic reheat valves
•Pressure-dependent VAV equipment with or without local reheat
Technical Bulletin
5TEC3000 Color Series Field-Selectable BACnet MS/TP or N2 Networked and Wireless Thermostat Controllers
•Two- or four-pipe fan coils
•Cabinet unit heaters
•Other individual zone equipment using a proportional 0 VDC to 10 VDC control input
The networked models feature a BAS BACnet MS/TP, N2, or ZFR Wireless communication capability
that enables remote monitoring and programming for efficient space temperature control.
Some models have occupancy-sensing capability built into the device. These thermostat controllers
maximize up to 30% energy savings in high-energy usage, light commercial buildings, such as
schools and hotels. Savings occur during occupied times by using additional standby setpoints
when occupants are not in the room.
All models feature an intuitive UI with backlit display that makes setup and operation quick and
easy. Multiple fan configurations are supported for all equipment types.
•Single-speed
•Multi-speed (two or three discrete speeds)
•Variable-speed/EC motors (0 VDC to 10 VDC control)
All models contain a built-in humidity sensor to support dehumidification on two-pipe fan coil units
with reheat and four-pipe fan coil units with individual coils or single coil with heating and cooling
valves installed. When no heating is required, the thermostat controller monitors space humidity
and activates dehumidification control as necessary. Heat, reheat, or both are used as required to
prevent over-cooling while achieving humidity setpoint and maintain the space temperature. For
optimal dehumidification performance, use a fan coil unit that has a multi-speed or variable-speed
fan.
On/Off or Floating Fan Coil and Individual Zone Thermostat
Controllers
The TEC3000 Series On/Off or Floating Fan Coil and Individual Zone Thermostat Controllers are
field-selectable BACnet MS/TP, N2, or ZFR Wireless networked devices that provide control of:
•Local hydronic reheat valves
•Pressure-dependent VAV equipment with or without local reheat
•Two- or four-pipe fan coils
•Cabinet unit heaters
•Other individual zone equipment using an on/off or floating control input
The networked models feature a BAS BACnet MS/TP, N2, or ZFR Wireless communication capability
that enables remote monitoring and programming for efficient space temperature control.
Some models have occupancy sensing capability built into the device. These thermostat controllers
maximize up to 30% energy savings in high-energy usage, light commercial buildings, such as
schools and hotels. Savings occur during occupied times by using additional standby setpoints.
All models feature a UI with backlit color display that makes setup and operation quick and easy.
Multiple fan configurations are supported for all equipment types.
•Single-speed
•Multi-speed (two or three discrete speeds)
•Variable-speed/EC motors (0 VDC to 10 VDC control)
All models contain a built-in humidity sensor to support dehumidification on two-pipe fan coil units
with reheat and four-pipe fan coil units with individual coils or single coil with heating and cooling
6
TEC3000 Color Series Field-Selectable BACnet MS/TP or N2 Networked and Wireless Thermostat Controllers
Technical Bulletin
valves installed. When no heating is required, the thermostat controller monitors space humidity
and activates dehumidification control as necessary. Heat, reheat, or both are used as required to
prevent over-cooling while achieving humidity setpoint and maintain the space temperature. For
optimal dehumidification performance, use a fan coil unit with a multi-speed or variable-speed fan.
Single- or Two-Stage RTU/Heat Pump with Economizer
Thermostat Controllers
The TEC3000 Series Single- or Two-Stage Economizer Thermostat Controllers are field-selectable
BACnet MS/TP, N2, or ZFR Wireless networked devices that provide control of:
•Unitary rooftop units (RTUs)
•Unitary RTUs with economizers
•Unitary RTUs with heat pumps
•Unitary RTUs with economizers and heat pumps
•Unitary RTUs with hot gas reheat
•Unitary RTUs with hot gas reheat and economizers
The networked models feature a BAS BACnet MS/TP, N2, or ZFR Wireless communication capability
that enables remote monitoring and programming for efficient space temperature control.
Some models have occupancy sensing capability built into the device. These thermostat controllers
maximize up to 30% energy savings in high-energy usage, light commercial buildings, such as
schools and hotels. Savings occur during occupied times by using additional standby setpoints.
All models feature an intuitive UI with backlit color display that makes setup and operation quick
and easy. Only the single-speed fan configuration is supported for RTU equipment types.
All models contain a build-in humidity sensor to support dehumidification on RTUs with hot gas
reheat and RTUs with auxiliary dehumidifier installed. When no heating is required, the thermostat
controller monitors the space humidity and activates dehumidification control as necessary. The
controller uses heat, reheat, or both as required to prevent over-cooling while it achieves the
humidity setpoint and maintains the space temperature.
Technical Bulletin
7TEC3000 Color Series Field-Selectable BACnet MS/TP or N2 Networked and Wireless Thermostat Controllers
Determining correct pairing of CPU Board and Base Board
Important: Make sure you attach the cover that corresponds to its correct base. The CPU
board number needs to match the Base board number. Otherwise you encounter an operation
error after you reattach a cover and base that do not belong together, as shown in Figure 1.
Figure 1: Error code indicating mismatched boards
Note: The example shown in Figure 1 indicates a TEC3612-16 CPU board that is mounted on
the base of a TEC3312-16.
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TEC3000 Color Series Field-Selectable BACnet MS/TP or N2 Networked and Wireless Thermostat Controllers
Technical Bulletin
Wireless TEC3000 networks
The TEC3000 includes an embedded wireless router and can only be used on a ZFR182x or ZFR183x
Pro Series Wireless Network.
The WRG1830/ZFR183x Pro Series Wireless Field Bus System is similar to the WNC1820/ZFR182x
Series wireless system in many ways. But there are several important differences.
•The wireless networks (PANs) formed by the ZFR183x and ZFR182x systems are not
compatible.
•The ZFR182x Series Routers and TEC3000 are not field upgradeable to be compatible with the
ZFR1830 Series System.
Important: ZFR182x Pro Series Wireless System compatible TEC30xx-1x-000 models and
ZFR183x Pro Series Wireless System compatible TEC31xx-1x-000 models are not compatible
with each other and cannot be used under the same PAN ID (network address).
Table 2: ZFR183x Pro Series indoor transmission ranges
Range typeTransmission distance
ZFR to ZFRTEC to ZFR
TEC to TEC
Recommended250 ft (75 m)250 ft (75 m)50 ft (15.2 m)
Maximum, Line of Sight 1000 ft (304.8 m)1000 ft (304.8 m)100 ft (30 m)
WRZ to ZFR
In ZFR182x Pro Series networks, place every wireless TEC3000 within 50 ft (15 m) of at least two
other TEC3000 or ZFR182x wireless devices.
In ZFR183x Pro Series networks, place every wireless TEC3000 within 250 ft (76.2 m) of at least two
other ZFR183x Pro Series wireless TEC3000.
If any wireless TEC3000 is not within 50 ft (15 m) of a ZFR182x Pro Series, or 250 ft (76.2) of a
ZFR183x Pro Series system with other compatible wireless TEC, use compatible ZFR182x or ZFR183x
Routers as repeaters with applicable accessories to provide multiple wireless data pathways.
Note: Change the address of the wireless TEC. The address on the wireless TEC is invalid from
the factory so it must be changed when installed.
A wireless network requires a network coordinator/gateway. See the WNC1800/ZFR182x Pro Series
Wireless Field Bus System Technical Bulletin (LIT-12012356) and WRG1830/ZFR183x Pro Series Wireless
Field Bus System Technical Bulletin (LIT-12013553) for more information about the layout of a ZFR182x
or ZFR183x Pro Series Network.
Configuring a wired TEC3000 for MS/TP or N2 bus
The TEC3000 supports network connectivity to a BAS using a BACnet MS/TP or N2 bus. You select
BACnet MS/TP or N2 communication through the software.
Wiring the network
N2 and BACnet MS/TP protocols use the same physical connections for an RS-485 connection, that
requires three conductors:
•NET +
•NET -
Technical Bulletin
9TEC3000 Color Series Field-Selectable BACnet MS/TP or N2 Networked and Wireless Thermostat Controllers
•NET COM
Connect the TEC3000 in line with other devices on the network.
End-of-Line termination
When the TEC3000 is the last device on the bus, make sure the end-of-line (EOL) switch on the I/O
board is in the On position.
Note: If the EOL switch is not on the I/O board, the thermostat is a stand-alone model.
Figure 2: EOL switch positions
Setting the network parameters
All network configuration is done through the software. On the home screen, click the menu icon.
Scroll down to Network Setup for the network settings. Out of the box, the thermostat is configured
in BACnet MS/TP mode. To change to the N2 mode, select FC Comm Mode and change to N2. This
change reboots the device when you click the save icon.
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TEC3000 Color Series Field-Selectable BACnet MS/TP or N2 Networked and Wireless Thermostat Controllers
Technical Bulletin
Table 3: Setup menus
Menu parameterDescription
BACnet Instance IDThis is the instance ID of the device on the BACnet MS/TP bus. BACnet
MS/TP systems use the instance ID for identification of the device. It can
be set from 1 to 4,194,302 and is unique to that site. The default is 1.
BACnet Device Address This is the physical MAC address of the BACnet MS/TP device on the bus.
It can be set from 4 to 127. Two devices on the same bus cannot have the
same BACnet MS/TP device address. The default is 4.
MSTP Baud RateThis is the baud rate that the TEC communicates on the network. The
default value is Auto, which allows the device to automatically detect
the baud rate of the BACnet MS/TP bus and operate at that speed. An
incorrect value causes the device to not communicate on the network,
and can potentially cause the network to fail. Options for this setting are
Auto, 1,200, 9,600, 19,200, 38,400, and 76,800 Baud.
BACnet Encoding TypeThis is the method of data encoding and is used by the BACnet MS/TP
bus. The default value, ISO 10646 (UCS-2), is the encoding used by the
Metasys® platform. When operating on a third-party BAS, refer to the
documentation provided with the BAS for the correct encoding type.
N2 Device AddressThis is the physical MAC address of the N2 device on the bus and can be
set from 1 to 255. Two devices on the same bus cannot have the same N2
device address.
Connecting the MS/TP or N2 bus
About this task: To connect the MS/TP or N2 bus, complete the following steps:
1.Set the MS/TP or N2 address of the TEC3000 Series BACnet MS/TP or N2 Network
Temperature and Humidity Thermostat Controller according to the engineering drawings.
Note: 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 daisychained 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).
Result
Configure the thermostat controller for automatic baud rate detection. Do not exceed the
maximum number of devices allowed on a field bus. Ensure that the wiring terminations are set
correctly and that all communication wiring is daisy-chained with no T taps.
Technical Bulletin
11TEC3000 Color Series Field-Selectable BACnet MS/TP or N2 Networked and Wireless Thermostat Controllers
MS/TP or N2 thermostat controller mapping
Preparation
About this task: Before you map a TEC3000 Series field-selectable BACnet MS/TP or N2 Network
Thermostat Controller into an NAE:
1.Decide which points within the thermostat controller need to be mapped. Only map the
points that need to be viewed or commanded on a regular basis. Excessive point mapping
lowers system performance. Suggested points for mapping include Zone Temp, System
Mode, Fan Mode, Manual Occupancy Mode, Occupied Heating Setpoint, Occupied Cooling
Setpoint, Unoccupied Heating Setpoint, and Unoccupied Cooling Setpoint. In addition, alarm
points may be mapped if they are used, and other points may be mapped if required. Use the
Engineering view of the MS/TP trunk on the NAE to examine infrequently used points.
Note: Set all thermostat controller configuration parameters as required before you
map the points into the NAE. If you alter any thermostat controller configuration
parameters after you mapped the points into the thermostat controller, re-map all
points individually, because some exposed points might have been added or removed.
Be careful when you map configuration parameters, because they should only be
mapped if the operator is fully familiar with their use.
2.Verify that a Field bus is defined in the NAE. BACnet MS/TP or N2 devices attach to a Field bus.
Refer to the Metasys N2 Communication Bus Technical Bulletin (LIT-636018) for instructions on
how to define a Field bus.
3.For Metasys system software earlier than Release 4.0, verify that a BACnet Integration is
defined for the Field bus. The thermostat controllers are mapped as BACnet MS/TP devices
under a Field bus BACnet Integration. Refer to the BACnet Controller Integration with NAE/
NCE Technical Bulletin (LIT-1201531) or the Metasys N2 Communication Bus Technical Bulletin
(LIT-636018) for instructions on how to define a BACnet Integration.
Note: Metasys system Release 7.0.7 or later software is required for correct support of
text strings on all network points.
Result
At this point, you can map the thermostat controller and the required points inside the thermostat
controller.
Adding a thermostat controller
You must add the thermostat controller before you can map its points. To add the thermostat
controller, select either the Field or N2 bus (depending on the selected configuration) and choose
Field Device from the Insert menu.
Assisted Definition using Auto Discovery is the easiest way to add a new thermostat controller
online; however, this method requires that the thermostat controller that you want to add is
connected and ready to communicate. Device addresses must be unique from 4 to 127 for the
BACnet MS/TP and 1 to 255 for the N2 network.
Note: Do not use the MAP-ALL functionality when you add the thermostat controller to a
Supervisory device, because this adds all TEC3000 Trend Objects which cannot be viewed in
the Supervisory device. These trends update every 15 minutes which could cause issues in the
Supervisory device.
Adding BACnet MS/TP points
You must map the required points under the thermostat controller device. To map the points, select
the thermostat controller device under the BACnet Integration (if required, refresh the tree view to
see a newly added thermostat controller device) and choose Field Point from the Insert menu.
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TEC3000 Color Series Field-Selectable BACnet MS/TP or N2 Networked and Wireless Thermostat Controllers
Technical Bulletin
Assisted Definition using Auto Discovery is the easiest way to add new points online; however, this
function requires that the thermostat controller that you want to map is connected and ready to
communicate. When mapping points offline, the point type must match the BACnet object type
(for example, AV, MV, BI), and the point instance number must match the point BACnet instance
number.
Adding N2 points
You must map the required points under the thermostat controller device. To map the points, select
the thermostat controller device under the N2 Integration (if required, refresh the tree view to see a
newly added thermostat controller device) and choose Field Point from the Insert menu.
Then you need to add the appropriate PRN file based on the TEC model being used as an extension
to the device. Multi-state points are defined as ADI points in the PRN file. You must map these using
either MI or MO NAE object types. Following the field point addition, object units may need further
tailoring of units and enum set values. See Table 4, Table 5 or Table 6 for the enum set values.
MS/TP or N2 bus points tables
Thermostat controllers
Table 4: Points for TEC3612-1x-000, TEC3613-1x-000, TEC3012-1x-000, TEC3013-1x-000,
TEC3112-14-000, and TEC3113-14-000
Point description Point nameObject
type
Control ModeSYSTEM-MODEMV29500MI, ADI1TEC3000 Unit Control Mode
Unit EnableUNITEN-MODEMV29501MI, ADI2Shutdown/Enable
Occupied Cooling
Setpoint
Occupied Heating
Setpoint
Unoccupied
Cooling Setpoint
Unoccupied
Heating Setpoint
Standby Cooling
Setpoint
Standby Heating
Setpoint
Setpoint OffsetWC-ADJAV29508AO, ADF7(Negative) Max Setpoint Offset.
Hold/RunHOLDRUN-
Humidity Setpoint ZNH-SPAV29510AO, ADF80% RH to 100% RH
CLGOCC-SPAV29502AO, ADF160°F to 100°F (15.05°C to 37.78°C)
HTGOCC-SPAV29503AO, ADF245°F to 85°F (7.22°C to 29.44°C)
CLGUNOCC-SPAV29504AO, ADF360°F to 100°F (15°C to 38°C)
HTGUNOCC-SPAV29505AO, ADF445°F to 85°F (7°C to 30°C)
CLGSTBY-SPAV29506AO, ADF560°F to 100°F (15°C to 38°C)
HTGSTBY-SPAV29507AO, ADF645°F to 85°F (7°C to 30°C)
MV29509MI, ADI3Hold/Run
MODE
InstanceIDPoint
type
Point
address
Unit (IP), enum set/range
1.Auto
2.Cooling
3.Heating
1.Shutdown
2.Enable
*When Occ Setpoint Select = Setpoint
Offset. Otherwise, see Table 11 for
constraints
1.Hold
2.Run
Technical Bulletin
13TEC3000 Color Series Field-Selectable BACnet MS/TP or N2 Networked and Wireless Thermostat Controllers
Table 4: Points for TEC3612-1x-000, TEC3613-1x-000, TEC3012-1x-000, TEC3013-1x-000,
TEC3112-14-000, and TEC3113-14-000
Point description Point nameObject
type
Network Override
NET-OATAV29513AO, ADF11-50°F to 125°F (-46°C to 52°C)
Outdoor Air
Temperature
Network Override
NET-OAHAV29514AO, ADF120% RH to 100% RH
Outdoor Air
Humidity
Network Override
NET-SATAV29515AO, ADF130°F to 150°F (-18°C to 65°C)
Supply Air
Temperature
Network Override
NET-ZNHAV29516AO, ADF140% RH to 100% RH
Zone Humidity
LOADSHED-RLAV29725AO, ADF300°F to 1°F/min (0°C to 0.5°C/min)
AV29726AO, ADF310 to 8 delta °F (0 to 5 delta °C)
ADJ
TEMPOCC-LENAV29727AO, ADF320 minutes to 300 minutes
InstanceIDPoint
type
Point
address
Unit (IP), enum set/range
1.Occupied
2.Temp Occupancy
3.Unoccupied
4.Standby
5.Occupied-Override
6.Unoccupied-Override
1.Occupancy BI
2.Temp Occ BI
3.Temp Occ
4.Occ Override
5.Local Schedule
6.BAS Schedule
7.Occupancy Sensor
1.Changeover Disabled
2.Cooling Mode
3.Heating Mode
4.Supply Temperature Unreliable
1.Off
2.On
3.Low
4.Medium
5.High
1.No
2.Yes
16
TEC3000 Color Series Field-Selectable BACnet MS/TP or N2 Networked and Wireless Thermostat Controllers
Technical Bulletin
Table 4: Points for TEC3612-1x-000, TEC3613-1x-000, TEC3012-1x-000, TEC3013-1x-000,
TEC3112-14-000, and TEC3113-14-000
Point description Point nameObject
type
Lockout LevelLOCL-LVLMV29531MI-ADI20States (0-2)
Unoccupied Off
UNOCC-OFF-DLY AV29532AO, ADF330 minutes to 10 minutes
Delay
Heat Prop BandHTG-PROP-BAND AV29535AO, ADF345 to 30 delta °F (2.8 to 16.7 delta °C)
Heat Integral Time HTG-INT-TIMEAV29536AO, ADF35300 seconds to 1600 seconds
Heat Process Range HTG-PROC-
AV29537AO, ADF3610 to 100 delta °F (5.6 to 56 delta °C)
RANGE
Heat Saturation
HTG-SAT-TIMEAV29538AO, ADF3760 seconds to 900 seconds
Time
Heat Time Constant HTG-TIME-
AV29539AO, ADF38360 seconds to 1440 seconds
CONST
Heat Process Dead
HTG-DEAD-TIME AV29540AO, ADF3920 seconds to 120 seconds
Time
Heat PeriodHTG-PERIODAV29541AO, ADF4030 seconds to 120 seconds
Cool Prop BandCLG-PROP-BAND AV29542AO, ADF415 to 30 delta °F (2.8 to 16.7 delta °C)
Cool Integral Time CLG-INT-TIMEAV29543AO, ADF42300 seconds to 1600 seconds
Cool Process Range CLG-PROC-
AV29544AO, ADF4310 to 100 delta °F (5.6 to 56 delta °C)
RANGE
Cool Saturation
CLG-SAT-TIMEAV29545AO, ADF4460 seconds to 900 seconds
Time
Cool Time Constant CLG-TIME-CONST AV29546AO, ADF45360 seconds to 1440 seconds
Cool Process Dead
CLG-DEAD-TIME AV29547AO, ADF4620 seconds to 120 seconds
Time
Cool PeriodCLG-PERIODAV29548AO, ADF4730 seconds to 120 seconds
DeadbandDEADBANDAV29556AO, ADF551.4 to 3 delta °F (0.78 to 1.66 delta °C)
Min Heating
MINHTG-SPAV29559AO, ADF56
Setpoint
Max Heating
MAXHTG-SPAV29560AO, ADF57Present value of Min Heating Setpoint
Setpoint
Min Cooling
MINCLG-SPAV29561AO, ADF58Present value of Max Heating Setpoint
Setpoint
Max Cooling
MAXCLG-SPAV29562AO, ADF59Min Cooling Setpoint present to 100°F