Johnson Controls TEC2604-4, TEC2604-4+PIR Installation Instructions Manual

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TEC2604-4 and TEC2604-4+PIR BACnet® MS/TP Networked Multi-Stage Economizer Thermostat Controllers

Installation Instructions

TEC2604-4 and TEC2604-4+PIR

Part No. 24-9890-1079, Rev. B

Issued June 22, 2010

Supersedes January 27, 20

Applications

The TEC2604-4 and TEC2604-4+PIR Thermostat Controllers are BACnet® Master-Slave/ Token-Passing (MS/TP) networked devices that provide control of single- or multi-stage unitary rooftop units with economizers. The TEC2604-4+PIR Thermostat Controller provides advanced active occupancy logic that automatically switches occupancy from Occupied to Unoccupied as required by the presence of local activity. See the Occupancy Sensor Operation – TEC2604-4+PIR Thermostat Controller section for more information.

The technologically advanced TEC2604-4 and TEC2604-4+PIR 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 TEC2604-4 and TEC2604-4+PIR 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. Economizer functions include a 0 to 10 VDC control signal, dry bulb changeover strategy, adjustable minimum position, and mixed air setpoint control.

IMPORTANT: The TEC2604-4 and TEC2604-4+PIR Thermostat Controllers are intended to provide an input to equipment under normal operating conditions. Where failure or malfunction of the thermostat could lead to persona l 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.

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.

Canada

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.

Installation

Location Considerations

Locate the TEC2604-4 or TEC2604-4+PIR Thermost at 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, outside doors, air discharge grills, or stairwells, and from behind doors

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

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

TEC2604-4 and TEC2604-4+PIR BACnet® MS/TP Networked

Multi-Stage Economizer Thermostat Controllers Installation Instructions

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Note: Allow for vertical air circulation to the

Figure 1: Removing the Thermostat Controller

Cover (TEC2604-4+PIR Model Shown)

FIG:cvr_ rmvl

Figure 2: Opening the Thermost a t Contro ller PCB

Tabs

TEC2604-4 or TEC2604-4+PIR Thermostat Controller. 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.

3. Carefully pull the locking tabs on the right side of the thermostat controller mounting base and unlock the PCB. Open the PCB to the left as illustrated in Figure 2.

PCB Locking

2. Pull the bottom edge of the thermostat controller cover and open the thermostat controller 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. Carefully 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.

r b

_ d

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 controller mounting base so that the arrow on the base points upward to indicate the top of the thermostat controller.

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.

TEC2604-4 and TEC2604-4+PIR BACnet® MS/TP Networked Multi-Stage Economizer Thermostat

Controllers Installation Instructions

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.

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8. Swing the PCB back to the right and carefully snap

Figure 3: Securing the Thermostat Controller

Mounting Base to the Wall

Figure 4: Removing the Screw Terminal Blocks

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.

Wiring

When an existing thermostat controller is replaced, remove and label the wires to identify the terminal functions. When a TEC2604-4 or TEC2604-4+PIR Thermostat Controller is replaced, simply remove the old screw terminal blocks and reinsert them onto the PCB of the replacement thermostat controller.

IMPORTANT: Because some of the objects may not directly correlate to a previous version (TEC26xx-2), you must rediscover all point objects for the TEC2604-4 or TEC2604-4+PIR 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.

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 TEC2604-4 or TEC2604-4+PIR Thermostat Controller.

s k

n m

: G

I F

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 Figure 5.

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

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.

TEC2604-4 and TEC2604-4+PIR BACnet® MS/TP Networked Multi-Stage Economizer Thermostat

3. Reinsert the screw terminal blocks onto the PCB.

Controllers Installation Instructions

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4. Reattach the thermostat contro ller cover to the

Figure 5: Wiring the TEC2604-4 or TEC2604-4+PIR Thermostat Controller

24 VAC

Thermostat Power

Y2 Y1

RC C

If using the same power source install a jumper across RC and RH.

Heat 1

Heat 2

RH W1 W2

Cool 1

Energi zes on a Cal l for Fi r s t -Sta ge Cooling

24 VAC from Equipment Transformer 24 VAC (Co m m on) from Eq uipment Transformer 24 VAC for Heating Stages Energi zes on a Cal l for Fi r s t -Sta ge Heating Energ izes on a Call for Sec o nd-Sta ge Heati ng Auxiliary Output Configur able Digital Input 1 Configur able Digital Input 2 Remote R oom Sens or Sensor C ommon Auxiliary/Outdoor Air Sensor Remote Monitoring Supply Temperature Sensor 0 to 10 VDC Economizer Actuator Output MS/TP Bus

Function

Y1 Y2

C RH W1 W2

Aux

DI1 DI2 RS

Scom

OS MS EC

+, -, REF

Terminal

• Lighting

• On/Of f Actuation

• Exhaust Fan

Outdoor

Controller

0 to 10

VDC

24 VAC

Common

Supply Sensor

Cool 2

FIG:wrng

Three-Pole Right Top Connector

Eight-Pole Bottom Connector

Fan

Room

mounting base (top side first).

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

Energ izes on a Call for Sec o nd-Sta ge Cooli n g Energizes Fan in Accordance wi th th e Selected Fan Mode

Aux

DI1

Five-Pole Left Top Con nec tor

REF

Aux

Aux Cont act (High Side Common)

DI2

Scom

Remote

DI1 DI2

Auxiliary/

RH W1 W2

Scom

Supervisory

Remote

Monitoring

REF

for the thermostat and heating loads,

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.

TEC2604-4 and TEC2604-4+PIR BACnet® MS/TP Networked Multi-Stage Economizer Thermostat Controllers Installation Instructions

Air Sensor

Temperature

Sensor

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).

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The MS/TP Bus requires proper termination and

Figure 6: Front Cover of Thermostat Controller (TEC2604-4+PIR Model Shown)

70.0ºF

Backlit, plain text

Liquid Crystal Display (LCD)

is easy to read in any condition.

Five keys on the thermostat contr oller make ope ra t ion easy and i nt uitive.

indicate system activi ty.

FIG:frnt_v w

PIR motio n de te ct or

saves ene r gy using

standby setpoints.

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 Endof-Line Terminator (see Table 3; ordered separately) or similar device is recommended to provide this end-ofline 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.

Setup and Adjustments

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).

Thermostat Controller User Interface Keys

The TEC2604-4 and TEC2604-4+PIR Thermost at Controller user interface consists of five keys on the front cover (Figure 6). The function of each key is as follows:

•Use the YES key to:

- confirm menu selections and to advance to the next menu item

TEC2604-4 and TEC2604-4+PIR BACnet® MS/TP Networked Multi-Stage Economizer Thermostat

Room Temp

Light-Emitting Diodes (LEDs)

- stop the Status Display Menu from scrolling and to manually scroll to the next parameter on the menu

Note: When the thermostat controller is left unattended for 45 seconds, the thermostat controller display resumes scrolling.

•Use the NO key to decline a parameter change and to advance to the next menu item.

Controllers Installation Instructions

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•Use the MENU key to:

- access the Main User Menu or to exit the menu (See the Main User Menu

- access the Installer Configuration Menu or to exit the menu (See the Configuring the

TEC2604-4 or TEC2604-4+PIR Thermostat Controller section.)

•Use the UP/DOWN arrow keys to change the configuration parameters and to activate a setpoint adjustment.

section.)

Backlit Liquid Crystal Display (LCD)

The TEC2604-4 and TEC2604-4+PIR Thermostat Controllers include a 2-line, 8-character backlit display. Low-level backlighting is present during normal operation, and it brightens when any user interface key is pressed. The backlight returns to low level when the thermostat controller is left unattended for 45 seconds.

Light-Emitting Diodes (LEDs)

Three LEDs are included to indicate the fan status, call for heat, or call for cooling:

• The fan LED is on when the fan is on.

• The heat LED is on when heating is on.

• The cool LED is on when cooling is on.

Integrated PIR Sensor – TEC2604-4+PIR Thermostat Controller

The integrated PIR sensor allows for automatic switching between fully adjustable Occupied and Unoccupied temperature setpoints without user interaction. This feature generates inc rem en tal energ y savings during scheduled occupied period s while the space is unoccupied.

Programming Overview

Three menus are used to view, program, and configure the TEC2604-4 and TEC2604-4+PIR Thermostat Controllers: the Status Display Menu, the Main User Menu, and the Installer Configuration Menu.

Status Display Menu

The Status Display Menu is displayed during normal thermostat controller operation, and continuously scrolls through the following parameters:

• Room Temperature

• System Mode

• Schedule Status (Occupied/Unoccupied/Override [PIR Models])

• Outside Temperature – An outside air temperature sensor must be installed and connected.

• Applicable Alarms – The backlight lights up as an alarm condition is displayed.

Note: Press the YES key to temporarily stop this menu from scrolling.

Note: An option is available within the Installer Configuration Menu to lock out the scrolling display and show only the Room Temperature parameter.

Main User Menu

The Main User Menu is used to access and change the basic operating parameters of the thermost at controller . During normal thermostat controller operation, press the MENU key once to access the Main User Menu. This menu is most commonly used by the zone occupant, and includes the following parameters:

• Temperature Setpoints

• System Mode

• Fan Mode

The Main User Menu uses Auto Help. Auto Help is displayed automatically in the main User Menu when there is a pause in programming activity.

Installer Configuration Menu

Use the Installer Configuration Menu to set up the thermostat controller for application-specific operation. To access the menu, press and hold the MENU key for approximately 8 seconds.

Occupancy Sensor Operation – TEC2604-4+PIR Thermostat Controller

A TEC2604-4+PIR Thermostat Controller (or a TEC2604-4 Thermostat Controller equipped with a PIR accessory cover) provides advanced occupancy logic.

Note: The PIR strategy is an occupied strategy. If the thermostat controller is programmed to be Unoccupied , the PIR function does not have an effect on the occupancy strategy.

The thermostat controller automatically switches the occupancy level between Occupied and Unoccupied as required, when local movement is sensed. In the Occupied mode, if no movement is detected beyond the Unocc TM parameter setting, the mode changes to Unoccupied. Once movement is detected, the mode changes back to Occupied.

Occupancy sensing is enabled only if a PIR cover is installed. The PIR cover, when installed, is auto detected.

TEC2604-4 and TEC2604-4+PIR BACnet® MS/TP Networked Multi-Stage Economizer Thermostat

Controllers Installation Instructions

Page 7

PIR Diagnostic LEDs

Figure 7: Increasing Room Temperature Setpoints

Occ Heat

= 72°F

Occ Cool

= 75°F

Unocc Heat

= 65°F

Room Temperature

FIG:rm_tmp

The diagnostic LEDs inside the PIR lens brighten when movement is detected within the first 30 minutes after powerup. The LEDs do not light up or brighten after the initial 30-minute period.

Setpoints

The installer must be certain that the difference between the Occupied and Unoccupied setpoints can be recovered within a timely fashion to ensure occupancy comfort. In addition, the difference between the two setpoints must be large enough to warrant maximum energy savings.

These setpoints and Unoccupied time are adjust able to allow for customization, as dictated by the individual space requirements. See Figure 7 for an example of increasing room temperature setpoints.

Configuring the TEC2604-4 or TEC2604-4+PIR Thermostat Controller

The TEC2604-4 and TEC2604-4+PIR Thermost at Controllers ship from the factory with default settings for all configurable parameters. The default settings are shown in T able 1. To reconfigure the parameters via the thermostat controller, follow the steps in this section.

1. To access the Installer Configuration Menu, press and hold the MENU key for approximately 8 seconds.

Note: If the Password parameter is configur ed, Password 0 appears on the thermostat controller display indicating that the configured password is required to proceed. Use the UP/DOWN arrow keys to indicate the configured password, then press the MENU key to proceed through the Installer Configuration Menu parameters.

2. Once the Installer Configuration Menu begins, release and press the NO key to scroll through the parameters listed in Table 1.

3. When the desired parameter is displayed, use the YES key to choose the desired selection option.

4. Press the YES key and then the NO key to continue scrolling through the parameters.

When the thermostat controller is in the Installer Configuration Menu and left unattended for approximately 8 seconds, the thermostat controller reverts to the Status Display Menu.

Configuring Inputs DI1 and DI2

When DI1 and DI2 are configured for an alarm condition, an alarm condition is displayed locally when the input is closed. An alarm message is included on the scrolling Status Display Menu and when the message is displayed, the backlight momentarily lights up.

TEC2604-4 and TEC2604-4+PIR BACnet® MS/TP Networked Multi-Stage Economizer Thermostat

Controllers Installation Instructions

Page 8

Both inputs can be configured to the Selection Options included in Table 1.

Table 1: Installer Configuration Menu (Part 1 of 5)

Parameter

Description and Default Selection Options Appearing on Display

Pswrd Sets the protective access

password to prevent unauthorized

access to the Installer Configuration

Menu.

Default: 0

Note: The default setting does not

lock out access to the Installer

Configuration Menu. Com addr MS/TP address at the thermostat

controller; coincides with the

address assigned at the supervisory

controller.

Default: 254 DI1 Configuration of Digital Input 1.

Default: None

DI2 Configuration of Digital Input 2.

Default: None

Range: 0 to 1,000

Range: 004 to 127

(None): No function is associated with an input. (RemNSB): Remote Night Setback (NSB) via a time clock input, an

occupancy sensor, or from a voltage-free contact. Contact open = Occupied; contact closed = Unoccupied.

(RemOVR): Temporary occupancy request via a remote input. This override function is controlled by a manual remote occupancy override. When enabled, this condition disables the override capability of the thermostat controller.

(Filter): A Filter alarm is displayed. This alarm can be connected to a differential pressure switch that monitors a filter.

(Service): A Service alarm is displayed on the thermostat controller when the input is energized. Tie this input into the air conditioning unit control card, which provides an alarm if a malfunction occurs.

(Fan lock): A backlit flashing Fan lock alarm is displayed on the thermostat controller when the input is not energized. This alarm is used in conjunction with a local airflow sensor connected to the input. The thermostat controller heating or cooling action is locked out if no airflow is detected 10 seconds after the fan (Te rminal G) is energized. Contact open = no airflow; contact closed = airflow present.

(None): No function is associated with an input. (RemNSB): Remote Night Setback (NSB) via a time clock input, an

occupancy sensor, or from a voltage-free contact. Contact open = Occupied; contact closed = Unoccupied.

(Filter): A Filter alarm is displayed. This alarm can be connected to a differential pressure switch that monitors a filter.

TEC2604-4 and TEC2604-4+PIR BACnet® MS/TP Networked Multi-Stage Economizer Thermostat

Controllers Installation Instructions

Page 9

Table 1: Installe r Configuration Menu (Part 2 of 5)

Parameter

Description and Default Selection Options Appearing on Display

MenuScro Gives the option of having the

display continuously scroll the

parameters.

Default: on

Lockout Selectable Lockout Levels for

Pwr del

Frost pr Provides a minimum heating

Heat max

Cool min

Pband Proportional Band used by the PI

limiting end user keypad interaction.

Default: 0

Sets the delay time period at

thermostat controller powerup, or at

each time power is removed and

reapplied, before any operation

(fan, heating, or cooling) is

authorized. Also can be used to

sequence the startup of multiple

units in one location.

Default: 10.0 sec

setpoint of 42.0°F/5.5°C to prevent

freezing in the zone controlled by

the thermostat controller.

Default: off

Sets the Occupied and Unoccupied

maximum Heating setpoint values.

Default: 90.0°F/32.0°C

Sets the Occupied and Unoccupied

minimum Cooling setpoint values.

Default: 54.0°F/12.0°C

temperature control loop of the

thermostat controller.

Pband is not converted with C or F

scale and is always shown with a

range of 2 to 8.

Default: 2 (2.0F°/1.1C°)

(off): The scroll is inactive. (on): The scroll is active.

Function Level

Resume/Override Scheduling

Permanent T emperature Setpoints

T emporary T emperature Setpoints

System Mode Setting Access No Access No Access Fan Mode Setting Access No Access No Access Range: 10.0 to 120.0 sec

(on): Enabled (off): Disabled

Range: 40.0°F/4.5°C to 90.0°F/32.0°C

Range: 54.0°F/12.0°C to 100.0°F/37.5°C

Value F Scale Pband/C Scale Pband 2 2.0F°/1.1C° 3 3.0F°/1.7C° 4 4.0F°/2.2C° 5 5.0F°/2.8C° 6 6.0F°/3.3C° 7 7.0F°/3.9C° 8 8.0F°/4.4C° Note: The use of a larger proportional band is not to use the

thermostat controller as a discharge air controller device. The use of a larger proportional band can be used to solve issues for flawed HVAC design with basic sizing and thermostat controller location errors that cannot be worked around.

(0) (1) (2)

Access Access No Access

Access No Access No Access

Access Access No Access

TEC2604-4 and TEC2604-4+PIR BACnet® MS/TP Networked Multi-Stage Economizer Thermostat

Controllers Installation Instructions

Page 10

Table 1: Installer Configuration Menu (Part 3 of 5)

Parameter

Description and Default Selection Options Appearing on Display

Anticycl Anti-Short Cycle timer sets the

minimum on/off times for heating

and cooling stages.

Note: Set the anti-short cycle timer

to 0.0 min for equipment that

already has its own anti-short cycle

timer.

Default: 2.0 min Heat cph Sets the maximum number of

Heating cycles per hour.

Default: 4.0 Cool cph Sets the maximum number of

Cooling cycles per hour.

Default: 4.0 Deadband Sets the minimum deadband

between the heating and cooling

setpoints.

Default: 2.0F°/1.0C° Fan cont Determines how the fan is activated

in response to a call for heating or

cooling.

Default: on

Fan del Fan delay extends fan operation

after a heating or cooling cycle has

ended.

Default off

TOccTime Sets the duration of the Temporary

Occupancy Time when the heating

or cooling setpoints in the Occupied

mode are established by:

• an Override Function enabled in the Main User Menu (when the thermostat controller is in the Unoccupied mode)

• a temporary heating or cooling setpoint

default: 3.0 hrs

Cal RS Sets the desired room air

temperature sensor calibration (offset). The offset can be added to or subtracted from the actual displayed room temperature.

Default: 0.0F°/0.0C°C

Cal OS Sets the desired outdoor air

temperature sensor calibration (offset). The offset can be added to or subtracted from the actual displayed room temperature.

Default: 0.0F°/0.0C°

Range: 0.0 to 5.0 min adjustable in 1-minute increments

Range: 3.0 to 8.0 cycles per hour

Range: 3.0 or 4.0 cycles per hour

Range: 2.0F°/1.0C° to 4.0F°/2.0C° adjustable in 1.0F°/0.5C° increments

(off): Enables the thermostat controller to activate the fan in response to a call for cooling only.

(on): Enables the thermostat controller to activate the fan in response to a call for heating or cooling.

When there is a call for auxiliary heating, the fan is activated by the equipment fan and limit control.

(on): Extends fan operation by 60 seconds after a heating or cooling cycle has ended.

(off): No extension of fan operation after a heating or cooling cycle has ended.

The fan delay is only active when the fan is in the Auto mode. Range: 0.0 to 12.0 hrs adjustable in 1-hour increments

Range: -5.0F°/-2.5C° to 5.0F°/2.5C° adjustable in 1.0F°/0.5C° increments

Range: -5.0F°/-2.5C° to 5.0F°2.5C° adjustable in 1.0F°/0.5C° increments

TEC2604-4 and TEC2604-4+PIR BACnet® MS/TP Networked Multi-Stage Economizer Thermostat

Controllers Installation Instructions

Page 11

Table 1: Installe r Configuration Menu (Part 4 of 5)

Parameter

Description and Default Selection Options Appearing on Display

H stage Reverts the operation of a two-stage

thermostat controller to a single-

stage thermostat controller when

the second heating stage is not

needed.

Default: 2.0 C stage Reverts the operation of a two-stage

thermostat controller to a

single-stage thermostat controller

when the second cooling stage is

not needed.

Default: 2.0

H lock Discontinues heating operation in

C lock Discontinues cooling operation in

Unocc TM Sets the time delay between the

Aux cont Energizes peripheral devices

Chngstpt

response to the outdoor air

temperature. Requires that an

outdoor air temperature sensor be

installed and connected.

Default: 120°F/49°C

response to the outdoor air

temperature. Requires that an

outdoor air temperature sensor be

installed and connected.

Default: -40°F/-40°C

moment when the thermostat

controller toggles from the Occupied

mode to the Unoccupied mode after

the last motion is detected by the

occupancy sensor.

Default: 0.5 hours

(lighting equipment, exhaust fans,

and economizers).

Default: n.o.

Sets the economizer changeover

strategy, based on the outdoor air

temperature. Requires that an

outdoor air temperature sensor be

installed and connected.

When the OA temperature is below

the changeover setpoint, free

cooling is used (economizer

operation). When the OA

temperature is above the setpoint,

mechanical cooling is used

(compressor operation).

Default: 55.0°F/13.0°C

(1.0): One Stage (2.0): Two Stages

Range: -15°F/-26°C to 120°F/49°C adjustable in 5F°/5C° increments

Range: -40°F/-40°C to 95°F/35°C adjustable in 5F°/5C° increments

Range: 0.5 hours to 24.0 hours adjustable in 0.5 hour increments

(n.c.): Contact open = Occupied; contact closed = Unoccupied. (n.o.): Contact closed = Occupied; contact open = Unoccupied.

The contact toggles with the internal Occupied/Unoccupied schedule (or the NSB contact on one of the digital inputs, if used).

Range: 14.0°F/-10.0°C to 70.0°F/21.0°C

TEC2604-4 and TEC2604-4+PIR BACnet® MS/TP Networked Multi-Stage Economizer Thermostat

Controllers Installation Instructions

Page 12

Table 1: Installer Configuration Menu (Part 5 of 5)

Parameter

Description and Default Selection Options Appearing on Display

Min pos Sets the minimum position for the

OA dampers on the economizer.

These dampers are energized to

minimum position when the fan

(Terminal G) is energized and the

thermostat controller is in the

Occupied mode. When the

schedule is in the Unoccupied

mode, the minimum position is 0%.

Default: 0.0%

C mech Determines whether to allow

mechanical cooling (compressor

operation) if free cooling

(economizer operation) cannot

maintain the cooling setpoint.

Default: off

Mix stpt

MS temp Displays the mixed air temperature.

Establishes the mixed air

temperature when operating in the

economizer mode.

Default: 55.0°F/13.0°C

Requires that an MS be installed

and connected.

Default: N/A

Range: 0.0 to 100.0% equals 0 to 10 VDC output range

(0.0%) 0% 0 to 20%

(5.0%) 5% 24% (10.0%) 10% 28% (15.0%) 15% 32% (20.0%) 20% 36% (25.0%) 25% 40% (30.0%) 30% 44%

(on): Typically applies when the MS is installed before the

mechanical cooling refrigeration coils in the mixing plenum. In this scenario, mechanical cooling is allowed when free cooling cannot maintain the cooling setpoint.

(off): Typically applies when the remote Mixed air Sensor (MS) is installed after the mechanical cooling refrigeration coils. In this scenario, mechanical cooling will never operate at the same time as free cooling.

Range: 50.0°F/10.0°C to 90.0°/32.0°C

The mixed air temperature can be used to help service and troubleshoot the equipment and the economizer operation. The mixed air temperature is only accessible via the Installer Configuration Menu.

% OA Setting for 0 to 10 VDC

Actuator

Setting for 2 to 10 VDC

Actuator

1. When adjusting the numeric value, press the UP or DOWN arrow key to change the value by single increments; press and hold the UP or DOWN arrow key to change the numeric value in increments of ten.

2. When adjusting the temperature, press the UP or DOWN arrow key to change the value in 0.5F°/0.5C° increments; press and hold the UP or DOWN arrow key to change the value in 5.0F°/5.0C° increments.

Operation

Programming/Operating the TEC2604-4 or TEC2604-4+PIR Thermostat Controller

Once the thermostat controller is configured via the Installer Configuration Menu, its operating parameters can be programmed via the Main User Menu. Access this menu by pressing the MENU key during normal thermostat controller operation. The Main User Menu contains the basic operating features of the thermostat controller.

The Main User Menu also uses Auto Help, which is displayed automatically in the menu when there is a pause in programming activity. To exit Auto Help,

Enabling Override Schedule

Note: Enabling Override Schedule only appear s when in the Unoccupied Mode.

The override schedule prompt only appears when the thermostat controller is in the unoccupied state. This menu selection gives the user the option of overriding the unoccupied setpoints with the occupied setpoints for the amount of time specified under the TOccTime parameter. See the Configuring the TEC2604-4 or TEC2604-4+PIR Thermostat Controller section.

Note: If one of the digital inp uts is configured to operate as a remote override contact, this menu is disabled.

continue with the programming selection. When the thermostat controller is in the Main User Menu and is left unattended for 45 seconds, the menu revert s to the Status Display Menu.

TEC2604-4 and TEC2604-4+PIR BACnet® MS/TP Networked Multi-Stage Economizer Thermostat

Controllers Installation Instructions

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T o o verride the unoccupied state while in the Main User

75.0°F

set? Y/N

75.0°F

set? Y/N

68.0°F

set? Y/N

80.0°F

set? Y/N

62.0°F

set? Y/N

Y/N

Menu:

1. Press the NO key to all prompts until the Cancel ovrd prompt appears. If the thermostat controll er is in the unoccupied state, this is the first prompt.

2. Press the YES key to enable the temporary override. The thermostat controller returns to the Status Display Menu.

When scrolling through the Status Display Menu, Override now appears for the schedule status parameter.

Resuming the Programmed Schedule

This menu only appears when the thermost at controller is in the override mode.

To resume the schedule while in the Main User Menu:

1. Press the NO key to all prompts until the Resume Schedule prompt appears. If the thermostat controller is in the override state, this is the first prompt.

2. Press the YES key to resume the programmed schedule.

The thermostat controller returns to the Status Display Menu.

Entering Permanent Temperature Setpoints

The first prompt appearing in the Main User Menu of the thermostat controller when in the occupied state is to set the permanent temperature setpoint. Permanent setpoints are stored in the programmed schedule.

To enter the permanent heating and cooling setpoints for the Occupied and Unoccupied Modes, follow the steps in Table 2. When changing the temperatures, press the keys once to change the temperature in

0.5F°/0.5C° increments; press and hold down the keys

to change the temperature in 5.0F°/5.0C° increments.

Table 2: Entering Permanent Temperature

Setpoints (Part 1 of 2)

Thermostat Display

RoomTemp

Description

Press the MENU key while in the Status Display Menu to enter the Main User Menu.

Table 2: Entering Permanent Temperature

Setpoints (Part 2 of 2)

Thermostat

Description

Display

Press the YES key to change the

Cooling

Heating

Unocc CL

Unocc HT

°F/°

occupied cooling setpoint. Press the

NO key to advance to the occupied

heating setpoint menu.

Press the set the temperature. Press the key to store the value and advance to the next menu.

Press the occupied heating setpoint. Press the

NO key to advance to the unoccupied

cooling setpoint menu.

Press the UP/DOWN arrow keys to set the temperature. Press the key to store the value and advance to the next menu.

Press the unoccupied cooling setpoint. Press the NO key to advance to the unoccupied heating setpoint.

Press the UP/DOWN arrow keys to set the temperature. Press the key to store the value and advance to the next menu.

Press the unoccupied heating setpoint. Press the temperature display units.

Press the set the temperature. Press the key to store the value and advance to the next menu.

Press the units to °F or °C. Press the advance to the temperature setpoint type menu.

UP/DOWN arrow keys to

YES key to change the

NO key to advance to the

UP/DOWN arrow keys to

YES key to set the display

NO key to

YES

Press the NO key to all prompts until

Temperat

the temperature setpoint prompt appears on the display (it may be the first prompt). Press the YES key to enter the temperature setting menu.

TEC2604-4 and TEC2604-4+PIR BACnet® MS/TP Networked Multi-Stage Economizer Thermostat

Exit?

Press the Status Display Menu or press the key to reenter the temperature setting menu.

YES key to return to the

Controllers Installation Instructions

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Entering Temporary Temperature Setpoints

To temporarily change the setpoint, press the UP/DOWN arrow keys to change the temporary setpoint for the current mode of operation.

Note: Whether the thermostat controller is heating or cooling, the respective setpoint is temporarily adjusted. To toggle between the temporary heating and cooling setpoints, press the NO key while changing the temporary setpoints.

Ending Temporary Temperature Setpoints

The temporary setpoints remain in effect for the duration set in the TOccTime parameter or until manually released.

To release the temporary setpoint sooner, while in the Main User Menu:

1. Press the YES key to the first prompt that appears.

2. If the thermostat controller does not immediately return to the S tatus Display Menu, press the MENU key again and press the YES key to exit the Main User Menu.

The setpoint reverts to the Permanent Temperature Setpoint.

Selecting the System Mode

The thermostat controller has four system modes:

• Automatic Mode (auto): Automatic changeover between heating and cooling. This is the default setting.

• Cooling Mode (cool): Cooling operation only

• Heating Mode (heat): Heating operation only

• Off Mode (off): The thermostat controller is off; however, when frost protection (Frost pr parameter) is enabled, the thermostat controller still calls for heat (if required).

To set the system mode while in the Main User Menu:

1. Press the NO key to all prompts until the system mode prompt appears on the display. Press the YES key to select the desired system mode.

Selecting the Fan Mode

The thermostat controller has three fan mode settings:

• On Fan Mode (on): Energizes the fan all the time for both occupied and unoccupied states, even if the system mode is set to off.

• Automatic Fan Mode (auto): Energizes the fan only on a call for heating or cooling, for both occupied and unoccupied states.

• Smart Fan Mode (smart): Energizes the fan all the time for occupied states, and only on a call for heating or cooling in unoccupied states. This is the default setting.

To select the fan mode while in the Main User Menu:

1. Press the NO key to all prompts until the fan mode prompt appears on the display. Press the YES key to set the fan mode.

2. Press the UP/DOWN arrow keys to locate the desired fan mode. Press the YES key to select the desired fan mode.

3. Press the YES key to return to the Status Display Menu or press the NO key to return to the fan mode selection menu.

T roubleshooting

See Table 4 for display messaging. See Table 5 for troubleshooting details.

Accessories

All the accessories in Table 3 include mounting hardware; contact the nearest Johnson Controls® representative to order any of these parts.

Note: Review the technical specifications of the optional accessories prior to their use in an application.

Repair Information

If a TEC2604-4 or TEC2604-4+PIR Thermostat Controller fails to operate within its specifications, replace the unit. For a replacement thermostat controller, contact the nearest Johnson Controls representative.

2. Press the UP/DOWN arrow keys to locate the desired system mode. Press the YES key to select the desired system mode.

3. Press the YES key to return to the Status Display Menu or press the NO key to return to the system mode selection menu.

TEC2604-4 and TEC2604-4+PIR BACnet® MS/TP Networked Multi-Stage Economizer Thermostat

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Table 3: Accessories (Order Separately)

Code Number Description

SEN-600-1 Remote Indoor Air Temperature Sensor SEN-600-4 Remote Indoor Air Temperature Sensor with Occupancy Override and LED

TE-6361M-1 TE-6363P-1 TEC-3-PIR

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

TE-6300 Series Temperature Sensors Product Bulletin (LIT-216320) for more details.

2. The TEC-3-PIR Accessory Cover can be used to replace the existing cover on a non-PIR TEC2604-4 Thermostat Controller to provide occupancy sensing capability.

Duct Mount Air Te mperature Sensor Outside Air Temperature Sensor Cover with Occupancy Sensor

Table 4: Alarm Messages

Display Function

Frost Indicates that the heating is energized by the low limit frost protection room temperature setpoint 5.6°C (42°F). Fan Lock Indicates that the heating and cooling action are locked out due to a defective fan operation. Service Indicates that there is a service alarm in accordance with a programmable Digital Input. Filter Indicates that the filter(s) is dirty in accordance with a programmable Digital Input.

Table 5: Troubleshooting Details1 (Part 1 of 2)

Symptom Probable Causes

Multiple Symptoms

Poor Performance See the probable causes listed previously in the Multiple Symptoms section of this table.

Thermostat Goes Offline

Excessive bus errors may be occurring. A device may have been added or changed with a duplicate address (may not be the same address as

some devices having problems, and may have happened sometime before the problem was noticed). Wiring errors or wire problems may exist. The baud rate may have been changed on some devices on the network but not all devices. Max_Master may have been changed incorrectly (may have happened sometime before the problem

was noticed). A download may be in progress. There may be a fault at a device. A repeater may be needed or may be configured incorrectly. There may be a duplicate device object name or instance.

Excessive bus traffic may exist (bus overload). The baud rate may be set too low. There may be too many devices on the network. There may be unaccounted devices on the network (not mapped to the NAE). There may be unusually slow devices on the network or devices that are slow to respond. See the probable causes listed previously in the Multiple Symptoms section of this table. A power failure or other failure may have occurred at the thermostat controller. Communication may have been disabled at the thermostat controller.

TEC2604-4 and TEC2604-4+PIR BACnet® MS/TP Networked Multi-Stage Economizer Thermostat

Controllers Installation Instructions

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Table 5: Troubleshooting Details1 (Part 2 of 2)

Symptom Probable Causes

Thermostat Does Not Come Online

See the probable causes listed previously in the Multiple Symptoms section of this table. A thermostat controller may be connected to the wrong bus. A baud rate may be specified in the new thermostat controller that is incompatible wit h the running

network. No device on the network is configured to use a specific baud rate (normally the NAE), but all devices

are set to use auto baud. At least one device, typically the bus supervisor (NAE), must have an assigned baud rate. Set the baud rate in the bus supervisor and set all other devices to auto baud.

1. For common MS/TP troubleshooting information, refer to the

(LIT-12011034).

MS/TP Communications Bus Technical Bulletin

Technical Specifications

TEC2604-4 and TEC2604-4+PIR BACnet MS/TP Networked Multi-Stage Economizer Thermostat Controllers (Part 1 of 2)

Power Requirements 19 to 30 VAC, 50/60 Hz, 2 V A (Terminals RC and C) at 24 VAC Nominal, Class 2 or

Safety Extra-Low Voltage (SELV)

Relay Contact Rating (Y1, Y2, G , W1, W2, and AUX)

Digital Inputs Voltage-Free Contacts across Terminal C to Termi nals DI1 and DI2 Analog Inputs Resistive Inputs (RS and UI3) for 10k ohm Johnson Controls Type II Negative

Wire Size 18 AWG (1.0 mm Diameter) Maximum, 22 AWG (0.6 mm Diameter) Recommended Temperature Sensor Type Local 10k ohm Johnson Controls Type II Negative Temperature Coefficient (NTC)

Temperature Range Backlit

Display Heating

Control Cooling

Control

Accuracy T emperature ±0.9F°/±0.5C° at 70.0°F/21.0°C Typical Calibrated Minimum Deadband 2F°/1C° between Heating and Cooling Ambient Conditions Operating 32 to 122°F (0 to 50°C); 95% RH Maximum, Noncondensing

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

19 to 30 VAC, 1.0 A Maximum, 15 mA Minimum, 3.0 A Inrush, Class 2 or SEL V

Temperature Coefficient (NTC) Thermistor Sensors

Thermistor Sensor

-40.0°F/-40.0°C to 122.0°F/ 50.0°C in 0.5° Increments

40.0°F/4.5°C to 90.0°F/32.0°C

54.0°F/12.0°C to 100.0°F/38.0°C

TEC2604-4 and TEC2604-4+PIR BACnet® MS/TP Networked Multi-Stage Economizer Thermostat

Controllers Installation Instructions

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Metasys® and Johnson Controls® are registered trademarks of Johnson Controls, Inc.

Building Efficiency

507 E. Michigan Street, Milwaukee, WI 53202

TEC2604-4 and TEC2604-4+PIR BACnet MS/TP Networked Multi-Stage Economizer Thermostat Controllers (Part 2 of 2)

Compliance United States UL Listed, File E27734, CCN XAPX,

Canada UL Listed, File E27734, CCN XAPX7,

Europe CE Mark – Johnson Controls, Inc., declares that the BACnet Thermostats are

Australia and New Zealand

BACnet International

Shipping Weight TEC2604-4 Models: 0.75 lb (0.34 kg)

The performance specifications are nominal and conform to acceptable industry standards. For application at conditions beyond these specifications, consult the local Johnson Controls office. Johnson Controls, Inc. shall not be liable for damages resulting from misapplication or misuse of its products.

Under UL 873, Temperature Indicating and Regulating Equipment FCC Compliant to CFR 47, Part 15, Subpa rt B, Cla ss A

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

in compliance with the essential requirements and other relevant provisions of the EMC Directive 2004/108/EC.

C-Tick Mark, Australia/NZ Emissions Compliant

BACnet Testing Laboratories™ (BTL) 135-2001 Listed BACnet Application Specific Controller (B-ASC)

TEC2604-4+PIR Models: 0.77 lb (0.35 kg)

TEC2604-4 and TEC2604-4+PIR BACnet® MS/TP Networked Multi-Stage Economizer Thermostat

Published in U.S.A. www.johnsoncontrols.com

Controllers Installation Instructions

Johnson Controls TEC2604-4, TEC2604-4+PIR Installation Instructions Manual

Specifications and Main Features

Frequently Asked Questions

User Manual