Honeywell Thermostat TB6980 User's Manual
Contents
1. olo nlo anla wj Tire Baseboard FIGURE 1 Damper control with electric reheat and auxiliary baseboard heating Configuration menu settings 0j1 5 2 0 3 1 4 TB6980B Damper actua or Duct heater OPEN CLOSED 24Vac Actuator 24V loating COM OPEN CLOSED T2 AN 2 T2 COM nlo ola w T3 T3 o 10 12 FIGURE 2 Damper control with electric COM Sensor c over NSB lt hot water heating 2 X Thermal valve N O reheat and auxiliary TB7980B Damper actuator Configuration menu settings i4 2 6 5 0 3 1 Duct heater Automatic changeover temperature sensor 50014157 001 lev y 2 10 V analog Actuator 24Vac COM ES AN1 COM T2 AN 2 nlo ola wl T3 T2 COM 24 V system 13 w 10 11 42 NSB COM Sensor c over FIGURE 3 Damper control with automatic changeover electric reheat and central cooling Configuration menu settings TB6980B Air 3 0 1 0 0 3 1 4 return2. 130 equipment 7 14 F 7 C 6 140 Default value Default value 8 16 F 8 C 71450 is 95 F 35 C is 50 F 10 C 9 18 F 9 C 8 160 TB7980B model section 4 2 section 4 3 1 section 4 4 section 4 5 section 4 5 section 5 6 section 4 3 2 in 5 5 5 g aj 4 5 SP HI SP LG Papam Default mode amp 6 Output 3 Output 1 Maximum Minimum Application Output 1 type Output 2 type Output 3 type activation NSB value min opening setpoint setpoint section 4 6 section 4 6 0 Internal sensor O Cool 0 10V 0 Not used 0 Not used 0 100 1 2 F 1 C 0 0 1 Room 1 Heat 0 10 V 1 SSR 24 VAC 1 SSR 24 VAC 1 10 2 4 F 2 C 1 10 2 Return 2 Cool 240V 2 N C Valve 2 N C Valve 2 20 3 6 F 3 C 2 20 eee i aes oe 3 Supply 3 Heat 2 10V 3 NO Valve 3 N O Valve 3 30 4 8 F 4 C 3 30 35 C and 40 C and 4 Auto changeover 4 Mech relay 4 Mech relay 4 40 5 10 F 5 C 4 40 minimum maximum 5 Limited cooling 5 SSR 3 32 V 5 Contact 5 50 6 12 F 6 C 5 50 setpoint 1 setpoint 1 6 SCR 0 10 V 6 609 7 14 F 7 C 2 z Default value Default value 7 Act 0 10 V 7 70 8 16 F 8 C is 95 F 35 C is 50 F 10 C 8
3. set the switch to Analog see section 4 7 4 6 4 5 Output 3 models TB6980B and TB7980B The following table shows the output types for Output 3 and their corresponding settings in the configuration menu Menu setting Description 0 Not used 1 24 VAC pulsed triac 1 sec cycle 2 24 VAC pulsed triac 10 min cycle direct action e g N C thermal valve 24 VAC pulsed triac 10 min cycle reverse action 9 e g N O thermal valve 4 24 VAC pulsed triac 15 min cycle e g mechanical relay such as R841 5 N O contact The contact closes when Output 1 reaches or exceeds set percentage See section 4 1 When any setting between 1 and 4 is selected Output 3 controls heating only regardless of the thermostat s mode Setpoint 100 me Output 3 0 100 me Output 2 Output 1 ym max min KO 0 100 hi 3 0 100 m Output 2 0 max XN 1 min Ambient temperature Cold Hot When setting 5 is selected Output 3 controls heating or cooling depending on whether the default mode has been set to heat or cool respectively see section 4 3 1 For example if the default mode has been set to heat mode the contact remains opened when the thermostat is in cool mode When the thermostat is in heat mode the contact closes when Output 1 reaches a percentage of its capacity set via the configuration menu Setpoint l Output 3 On off L I l I 1 Output
4. Default mode amp Output 1 Maximum Minimum Application NSB value k h h i Output 1 type s min opening setpoint setpoint section 4 2 section 4 3 1 section 5 6 section 4 3 2 section 4 6 section 4 6 if ia i f menu can now be modified 0 Internal sensor 0 Cool 0 10V 1 2 F 1 C 0 0 1 Room 1 Heat 0 10V 2 4 F 2 C 1 10 Can be set Can beset 3 2 Return 2 Cool 2 10V 3 6 F 3 C 2 20 between 95 F between 50 F 3 Supply 3 Heat 2 10V 4 8 F 4 C 3 30 35 C and 10 C and 4 erage minimum maximum j 4 Auto changeover 5 10 F 5 C 4 40 setpoint 1 setpoint 1 go to the next item 5 Limited cooling 6 12 F 6 C 5 50 5 7 14 F 7 C Default value Default value 8 16 F 8 C is 95 F 35 C is 50 F 10 C 6 9 18 F 9 C SW2 switch back to NORMAL TB6980A model A NSB I E 8 5 faj aj SP HI SP LD aopication Defautmode NSB value min opening opening time sepoi setpoint i aii z section 4 3 2 section 4 3 3 section 4 6 section 4 6 0 Internal sensor 0 Cool 1 2 F 1 C 0 0 0 80 1 Room 1 Heat 2 4 F 2 C 1 10 1 90 Can be set Can be set 2 Return 3 6 F 3 C 2 20 2 100 between 95 F between 50 F 3 Supply 4 8 F 4 C 3 30 3 110 35 C and 10 C and 4 Auto changeover 5 10 F 5 C 4 40 4 120 IMU maximum setpoint 1 setpoint 1 5 Limited cooling 6 12 F 6 C 5 50 5
5. its base and secure with the cap tive screw TB6980 TB7980 TB6980 TB7980 Installation and User Guide ZonePRO Thermostats Configuration and status display Heating mode Cooling mode Temperature display Temperature adjustment button Output power display Override button Overide 2 2 Terminal Designations The designations of the terminals vary according to the particular model of thermostat Refer to the following table for the description of each terminal TERMINAL DESCRIPTION 1 eae Power suppl 2 COM Pply 3 AN1 4 COM TB7980 models 3 OPEN Output 1 4 CLOSED TB6980 models 5 T2 AN2 6 T2 COM Output 2 TB6980B and TB7980B models 7 T3 8 T3 Output 3 TB6980B and TB7980B models 9 COM External sensor input For applications requiring 10 SENSOR an external sensor see section 4 2 9 COM Mode Changeover input N O contact See sec 11 C Over tion 5 5 2 9 COM Night Setback activation input N O contact 12 NSB See section 5 6 Note To configure the terminals see section 4 62 0238 03 1 6 3 Typical Applications TB7980B iguration menu settings 0 3 1 5 6 3 1 Duct heater Damper actuator x Mufo Relay 2 10 V analog 24Vac COM e AN1 COM T2 AN 2 T2 COM 13 13 COM z Sensor c over NSB
6. opening to 0 fully closed when a duct heater is connected to Output 2 or 3 4 3 3 Opening time TB6980 models only The damper opening time can be set between 80 and 160 seconds 4 4 Output 2 models TB6980B and TB7980B Output 2 controls heating only regardless of the thermostat s mode When the thermostat is in heat mode Output 2 is activated as soon as Output 1 reaches its full capacity When the thermostat is in cool mode Output 2 is activated when the measured temperature drops below the setpoint Setpoint 100 Output 2 Output 1 i A 0 min 9SN Output 2 I I 0 I max Output 1 l I NG min Cold Hot Ambient temperature The following table shows the output types for Output 2 and their corresponding settings in the configuration menu Menu setting Description 0 Not used 1 24 VAC pulsed triac 1 sec cycle 2 24 VAC pulsed triac 10 min cycle direct action e g N C thermal valve 24 VAC pulsed triac 10 min cycle reverse action 3 e g N O thermal valve 4 24 VAC pulsed triac 15 min cycle e g mechanical relay such as R841 5 0 10 V pulsed 1 sec cycle 6 0 10 V analog 1 sec refresh e g SCR controlled device such as a re heater 7 0 10 V analog max of 10 min refresh e g valve 8 2 10 V analog max of 10 min refresh e g damper Note If 0 4 is selected set the SW6 switch to Triac If 5 8 is selected
7. to control a damper It controls heating when the thermostat is in heat mode or cooling when the thermostat is in cool mode Setpoint max I I I I Output 1 I I I I min max Output 1 Ambient temperature Cold Hot Set the following configuration parameters Default mode Output type TB7980 models only e Minimum opening Opening time TB6980 models only 4 3 1 Default Mode Output Type The default mode heat cool is used for the following e The default mode is the thermostat s mode at power up e The default mode is the active mode when the N O changeover contact is open see section 5 5 2 e When configured as a contact see section 4 5 Output 3 controls either heating or cooling depending on whether the default mode is set to heat or cool respectively TB6980 TB7980 The following table shows the different default modes the different output types for Output 1 and their corresponding settings in the configuration menu TB7980 models Cool 0 10 V analog Cool max of 10 min refresh 24 V tri state floating Heat 0 10 V analog Heat max of 10 min refresh 24 V tri state floating Cool 2 10 V analog max of 10 min refresh Heat 2 10 V analog max of 10 min refresh 4 3 2 Minimum Opening The minimum damper opening can be set between 0 and 50 Menu setting TB6980 models 0 3 Note It is not recommended to set the minimum damper
8. 1 gm max I PA min I Output3 LI I l Off Output 1 I max wG I min Ambient temperature Cold Hot 4 6 Minimum and Maximum Setpoints The minimum and maximum setpoints are factory set at 50 F 10 C and 95 F 35 C The maximum setpoint can be set between 95 F 35 C and minimum setpoint 1 The minimum setpoint can be set between 50 F 10 C and maximum setpoint 1 TB6980 TB7980 4 7 DIP Switches Three switches at the back of the control module are used to select various options Temperature Display SW1 Selects the desired temperature display C or F Access Mode SW2 Selects the operation mode NORM or the configuration mode MENU e Place the switch to MENU to access the configuration menu e Place the switch to NORM for normal display Output 2 Type SW6 Sets Output 2 type Analog or Triac WARNING Place the switch according to the type of device Analog or Triac connected to Output 2 Failure to do so can result in thermostat damage 5 Operation 5 1 Power Up Upon power up the thermostat undergoes a series of test before displaying the actual temperature Note On the TB6980A and TB6980B models at power up the message OPEN appears at the top of the screen during the calibra tion of the damper opening This can last up to 3 minutes 5 2 Backlight To turn the backlight on press any button The display will illuminate for 12 seconds 5 3 Temperature Display an
9. 9 COM 9 COM 9 COM 10 Sensor 10 Sensor 10 Sensor 11 c over 11 c over 11 c over 12 NSB F 12 NSB 3 12 NSB E gt d d FIGURE 6 Changeover and NSB inputs using different 24 Vac transformers 2 6 4 Configuration 4 1 Configuration Menus See following pages for explanations NOTE Factory settings are inside the shaded cells Remove the thermostat from its base and Reinstall the thermostat The thermostat is now in configuration mode The first digit flashes to indicate that the first item of the To modify the setting use the up down arrows Refer to the adjacent tables Press Override to save the new setting and Repeat steps 3 and 4 for remaining items When the configuration is done set the ABBREVIATIONS Night setback number of degrees the thermostat will be set back upon receiving a setback signal SSR Solid state relay used with fast cycling electric heaters SSR s are a quiet alternative to electromechanical relays They re typically included with electric duct reheat equipment SCR Silicon controlled rectifier similar to an SSR SCR s are also quiet and capable of switching very high current If used they re usually included with the N C Normally closed N O Normally open 1 TB7980A model set the SW2 switch to MENU im eps
10. Act 2 10 V 8 80 9 18 F 9 C 9 90 a If Output 2 type is set to 0 4 set the SW6 switch to Triac If the output type is set to 5 8 set the switch to Analog see section 4 7 TB6980B model nl 5 5 5 E 5 5 B 8 SP HI SP LU wer Output 3 Output 1 Output 1 Maximum Minimum mares ee a eh 2 bo aa pia activation ee min opening opening time setpoint setpoint ji section 4 4 section 4 5 j section 4 3 2 section 4 3 3 section 4 6 section 4 6 0 internal sensor 0 Cool 0 Not used 0 Not used 0 100 1 2 F 1 C 0 0 0 80 1 Room 1 Heat 1 SSR 24 VAC 1 SSR 24 VAC 1 10 2 4 F 2 C 1 10 1 90 Can be set Can be set 2 Return 2 N C Valve 2 N C Valve 2 120 3 F 3 c 2 20 2 100 re oe oe 3 Supply 3 N O Valve 3 N O Valve 3 30 4 8 F 4 C 3 30 3 110 and and 4 Auto changeover 4 Mech relay 4 Mech relay 4 40 5 10 F 5 C 4 40 4 120 minimum maximum 5 Limited cooling 5 SSR 3 32 V 5 Contact 5 50 6 12 F 6 C 5 50 5 130 setpoint 1 setpoint 1 0 o o 6 SCR 0 10 V 6 60 7 14 F 7 C 6 140 Default Default 7 Act 0 10 V 7 70 8 16 F 8 C 7 150 value is 95 F value is 50 F 8 Act 2 10 V 8 80 9 18 F 9 C 8 160 35 C 10 C 9 90 a If Output 2 type is set to 0 4 set the SW6 switch to Triac If the output type is set to 5 8 set the switch to Analog see section 4 7 TB6980 TB7980 3 6 4 2 Application Types The follow
11. BLE FOR ANY LOSS OR DAMAGE OF ANY KIND INCLUDING ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING DIRECTLY OR INDI RECTLY FROM ANY BREACH OF ANY WARRANTY EXPRESS OR IMPLIED OR ANY OTHER FAILURE OF THIS PRODUCT Some states do not allow the exclusion or limitation of incidental or consequential damages so this limitation may not apply to you THIS WARRANTY IS THE ONLY EXPRESS WARRANTY HONEYWELL MAKES ON THIS PRODUCT THE DURATION OF ANY IMPLIED WAR RANTIES INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE IS HEREBY LIMITED TO THE TWO YEAR DURATION OF THIS WARRANTY Some states do not allow limitations on how long an implied warranty lasts so the above limitation may not apply to you This warranty gives you specific legal rights and you may have other rights which vary from state to state If you have any questions concerning this warranty please write Honeywell Customer Relations 1985 Douglas Dr Golden Valley MN 55422 or call 1 800 468 1502 8 Customer Assistance If you have any questions regarding your thermostat please go to http customer honeywell com or call Honeywell technical hot line at 1 888 245 1051 07 2012 6 6
12. Honeywell 1 Introduction The TB6980 TB7980 digital thermostats provide proportional plus integral individual space temperature control in zoned commercial HVAC systems such as hydronic and pressure dependent VAV with or without reheat There are four different models TB7980A single output modulating TB7980B multiple output modulating TB6980A single output floating TB6980B multiple output floating Depending on the models the thermostat can have up to three out puts for the following applications gt Floating or Modulating damper valve actuator control gt Damper valve actuator control with duct reheat and auxiliary heat B models only gt Hydronic systems room control perimeter heating and cool ing Accessories R841 family of electromechanical relays T7770A3002 remote room sensor 50014156 002 remote room sensor 32004800 001 bare thermistor 50014157 001 duct temperature sensor vvv v v 2 Installation 2 1 Mounting Instructions 1 Remove the thermostat from its base by unscrewing the cap tive screw and tilting the bottom of the thermostat up The screw cannot be completely removed S D 2 Pass the wires through the center hole of the base and secure the base to the wall or onto an electrical box 3 Wire the thermostat See section 2 2 for terminal designations and section 3 for typical wiring diagrams 4 Reinstall the thermostat onto
13. ML6984 ML7984 ML6410 ML7410 ML6161B2024 MN6105A1011 ML7161A2008 MN7505A2001 Wiring 18 AWG 1 mm wire Mounting directly to drywall single gang NEMA standard 2 in x 4 in electrical box double gang NEMA standard electrical box with mounting plate 7 Warranty Honeywell warrants this product excluding battery to be free from defects in the workmanship or materials under normal use and service for a period of two 2 years from the date of purchase by the consumer If at any time dur ing the warranty period the product is determined to be defective or malfunc tions Honeywell shall repair or replace it at Honeywell s option If the product is defective i return it with a bill of sale or other dated proof of purchase to the place from which you purchased it or ii call Honeywell Customer Care at 1 800 468 1502 Customer Care will make the determination whether the product should be returned to the following address Honeywell Return Goods Dock 4 MN10 3860 1885 Douglas Dr N Golden Valley MN 55422 or whether a replacement product can be sent to you This warranty does not cover removal or reinstallation costs This warranty shall not apply if it is shown by Honeywell that the defect or malfunction was caused by damage which occurred while the product was in the possession of a consumer Honeywell s sole responsibility shall be to repair or replace the product within the terms stated above HONEYWELL SHALL NOT BE LIA
14. _ Duct heater Supply temperature sensor Fresh air w 50014157 001 MU foren croseo Relay 24V floating 24Vac COM T H OPEN CLOSED T2 AN 2 T2 C0M njo oja w T3 T3 w 10 11 12 COM Sensor c over es NSB e FIGURE 4 Temperature control of fresh air supply TB7980B 9 SE TB7980B TB7980B TB7980B 1 24Vac 1 24Vac 1 24Vac 2 COM 2 COM 2 COM 3 AN1 3 AN1 3 AN1 4 COM 4 COM 4 COM 5 T2 AN 2 5 T2 AN 2 5 T2 AN 2 6 12 COM 6 T2 COM 6 12 COM 7 T3 7 13 7 13 of 8 13 8 T3 8 T3 9 COM 9 COM 9 COM CAUTION 10 Sensor 10 Sensor 10 Sensor Do not connect 111 c over 111 c over 11 c over common to ground 12 NSB 1 12 NSB J 12 NSB g d pE a TB7980B a S CAUTION Do not connect common to ground FIGURE 5 Changeover and NSB inputs sharing the same 24 Vac transformer TB6980 TB7980 e TB7980B TB7980B TB7980B 1 24Vac 1 24Vac 1 24Vac 2 CoM _ 2 COM 2 COM 3 AN1 3 AN1 3 AN1 4 COM 4 COM 4 COM 5 T2 AN 2 5 T2 AN 2 5 T2 AN 2 6 T2 C0M 6 Telcom 6 T2 COM Bea T T3 7 T3 7 T3 E 8 T3 8 T3 8 T3
15. at the top of the display E1 The internal temperature sensor is defective E2 The internal temperature sensor is shorted E3 The external temperature sensor is defective or not connected E4 The external temperature sensor is shorted 6 Technical Specifications Power 24 VAC Current consumption 25 mA Output signals Depends on output configurations Output ratings Triac output 0 5 A maximum 24 VAC Analog output SCR connection 0 10 V 10kQ minimum Analog output SSR connection 0 10 V 45 mA maximum Setpoint range 50 F to 95 F 10 C to 35 C Temperature display 32 F to 140 F 0 C to 60 C Temperature display resolution 1 F 0 5 C Mode hysteresis 4 F 2 C Automatic changeover deadband 9 F 5 C Duty cycle Depends on output configurations NSB offset Programmable 2 F to 18 F 1 C to 9 C NSB override period 2 hours Memory protection Configuration and setpoint Temperature control Proportional integral adaptive P I A Operating temperature 32 F to 140 F 0 C to 60 C Storage temperature 4 F to 122 F 20 C to 50 C TB6980 TB7980 Printed in USA Humidity limits 0 to 95 R H non condensing Dimensions 2 7 x 4 6 x 1 0 in 69 x 118 x 27 mm Accessories R841 electromechanical relay 50014157 001 air duct temperature sensor 50014156 002 remote room temperature sensor Compatible Damper Valve actuators VC6930 VC6934 VC6936 VC7930 VC7934 VC7936
16. d Setting The thermostat usually displays the actual temperature To view the setpoint press once on one of the av buttons The setpoint appears for 5 seconds and is indicated by the display During the setpoint display press one of the aw buttons to change it Note The temperature setpoint is automatically increased or decreased by 2 F 1 C when the controller switches to heating mode or to cooling mode respectively For example if the setpoint is at 77 F 25 C in heating mode it will become 79 F 26 C in cool ing mode and will return to 77 F 25 C when the controller is back in heating mode 5 4 Output Display ouput The bar graph represents the voltage for an analog out I put or the duty cycle for a triac output The bar graph I usually shows Output 1 power of damper opening b OUTPUT 2 To view Output 2 or 3 press Override for 2 seconds to b enter the diagnostic mode Press Override momentarily Pad to switch between the three output graphs To exit the diagnostic mode press Override for 2 seconds or wait for 1 minute for the mode to exit automatically J OUTPUT 3 4 Ubu 5 5 Mode Changeover The thermostat can switch between heat mode and cool mode either via the automatic changeover e the changeover input 5 6 5 5 1 Automatic changeover In automatic changeover the thermostat detects when the system switches between heat mode and cool mode by comparing
17. ing table shows the different thermostat applications and their corresponding settings in the configuration menu Menu setting Description 0 Internal To control the ambient temperature using the internal sensor built in sensor To control the ambient temperature using the 1 Room 50014156 002 temperature sensor the internal sensor is not used To control the temperature at the air return using the 2 Air return 50014157 001 temperature sensor the internal sensor is not used To control the temperature at the fresh air supply using 3 Air supply the 50014157 001 temperature sensor the internal sensor is not used Automatic To control the ambient temperature using the internal 4 sensor The 50014157 001 temperature sensor is used changeover f for automatic changeover See section 5 5 1 To use the outdoor air for cooling whenever possible The 50014157 001 temperature sensor is used to measure the outdoor air temperature The internal temperature sensor measures the room temperature which is then compared with the setpoint If the room 5 Limited temperature is lower than the setpoint the air intake cooling P P damper remains closed If the room temperature is higher than the setpoint the latter is then compared with the outdoor temperature If the fresh air temperature is lower than the setpoint by more than 5 F 3 C the damper opens to allow cool air in 4 3 Output 1 Output 1 is used
18. the air supply temperature with the ambient temperature If the thermostat is in heat mode it switches to cool mode when the air supply is cooler than ambient by 9 F 5 C or more If it is in cool mode it switches to heat mode when the air supply is warmer than ambient by 9 F 5 C or more Note Neither the heat mode icon 4 nor cool mode icon appears when the thermostat is placed in automatic changeover 5 5 2 Changeover Input The thermostat is in the default mode when the contact between ter minals 9 and 11 is open and switches mode when the contact is closed The default mode is set via the configuration menu Note The changeover contact state is ignored if the thermostat is configured in automatic changeover or in limited cooling 5 6 Night Setback The Night Setback NSB mode is activated when the contact between terminals 9 and 12 is closed When the IVE thermostat is in the NSB mode indicated by the ECONO l display the temperature is lowered or raised by the set NSB value depending whether the thermostat is in heat mode or cool mode respectively The NSB value is set via the con figuration menu Night Setback Override To temporarily override the NSB mode press the Over ride button The NSB mode is lifted for the next 2 hours or until the Override button is pressed again During the override the normal setpoint is used and OVERRIDE is displayed 5 7 Error Codes The following error codes can appear
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