TZ45 Rev B INSTALLATION MANUAL 141-01773-02
Contents
1. 28 Heat Pump HVAC System Types enenatis earns rne ense nnn 28 lUi E 30 Standard Gas Electric HVAC System Wiring esses ener 31 Heat Pump HVAC System Wiring sss seen nnne enne nnne nnns nnne 32 FOG H R I 33 33 DCN 141 01773 02 1 19 11 3 Overview Z Wave Thermostat The Z Wave thermostat provides for typical thermostat control of a central heating and cooling HVAC system plus has the added feature of Z Wave communications for remote control The thermostat has a large backlit graphical display control buttons status LEDs and a temperature sensor The thermostat can display multiple screens for different functions of the thermostat The default thermostat control screen shown below will display the current room temperature heating and cooling setpoints system mode manual fan mode time and status information Status Indicator e A Setpoint LEDs wt 4 Up Down e Pu Buttons BE iei TN HOLD On screen dynamic A button labels 4 Heating Cooling Setpoints Function Control Buttons Display operation Thermostat control screen Normally the thermostat displays the thermostat control screen as shown above Using the Menu button you can2. Change Over Valve O or B You must configure the thermostat s changeover valve setting to work correctly with your HVAC system Check your system information to be sure Change over type O orange wire change over with cooling most common type and default setting Change over type B brown wire change over with heating e X Note If you get cooling when you expect heating change the C O type to the opposite setting HVAC system transformer Heat Pump systems have one system transformer Do not cut the RC RH jumper Wire the HVAC systems 24VAC common blue wire to the 24Com terminal and the 24VAC return red wire to the 24RC or 24RH terminal DCN 141 01773 02 1 19 11 32 FCC INFORMATION TO USER This device complies with Part 15 of the FCC Rules Operation is subject to the following two conditions 1 This device may not cause harmful interference and 2 This device must accept any interference received including interference that may cause undesired operation This equipment has been tested and found to comply with the limits for Class B Digital Device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarant
3. The Next button will change to the Copy button Press the Copy button to open the Copy Schedule screen Scroll through the days and select the days you want to copy the schedule to by setting the N under each day to Y by using the Yes No buttons After selecting all the days desired press the COPY button Exit the Copy Schedule screen with the DONE button Copy Schedule Screen Select Yes or No to days to copy schedule U to using Up Down buttons 0999 Press COPY button to copy the schedule to the Press DONE button to exit back to day days with Y selected schedule screen Use the scroll buttons to navigate forwards or backwards through the days of the week DCN 141 01773 02 1 19 11 15 Main Menu User Settings The User Settings screen allows you to set or change various user options of the thermostat such as the Clock Filter and Maintenance service timers Minimized Screen timeout Fahrenheit Celsius mode Sensor Calibrations and Display settings User Settings Screen User Settings p S Up Select menu item with r rvi _ Up or Down buttons Screen Timeout 0 Down DONE SELECT U C Press DONE button to exit back to Main Press SELECT button to go to the submenu screen Menu screen Menu items Set Clock Go to the Clock setting screen Filter Service Go to the Filter Service Screen Sets resets
4. amp cooling transformer systems Standard Gas Electric HVAC System Wiring TZ45 Thermostat Back Note Rev I Connect cable Optional shield to Remote 24COM 24RC 24RH W1 Heat 1 G Fan RS1 RS1 RS2 RS2 Heat 2 W2 Comp 2 Y2 Twisted Pair shielded cable wiring O00000 HVAC System THERMOSTAT CONNECTION oe C 24VAC Common RC 24VAC Return W1 Heating Stage 1 Y1 Cooling Stage 1 G Fan W2 Heating Stage 2 Installation Notes Y2 Cooling Stage 2 Standard HVAC System Setup You must set up the system configuration in the Installers Settings Mechanical Settings Menu page 23 System Type Set the system type to Gas Elec This is the default setting Fan Type Set Fan Type to Gas for gas systems or Elec for electric heating systems Default is Gas Single Stage systems use W1 for heating stage 1 Y1 for cooling stage 1 Two Stage Heating systems use W1 for stage 1 W2 for stage 2 heating You must enable two stage heating in installer settings Two Stage Cooling systems use Y1 for stage 1 and Y2 for stage 2 cooling You must enable two stage cooling in the installer settings HVAC system transformer f you have an integrated heating and cooling system with a single transformer do NOT cut jumper JP1 Wire the HVAC system s 24VAC common blue wire to the 24Com terminal and the 24VAC Return red wire to either 24RH or 24RC terminal This is typical o
5. HEATING Mode Only heating will occur COOLING Mode Only cooling will occur AUTO Mode Heating or cooling will come on according to the heating and cooling setpoints The system will automatically switch between heating and cooling modes as needed to maintain the setpoints Special Heat Pump Mode EHEAT Mode An additional system mode EHEAT for Emergency Heat will be displayed if the HVAC system type is set to Heat Pump If there is a compressor failure with the Heat Pump system setting the mode to EHEAT will allow the supplemental Aux heat to come on first whenever there is a call for heating It also disables the compressor output to prevent further damage to the HVAC system DCN 141 01773 02 1 19 11 9 Fan Mode FAN Button The FAN button controls the HVAC system s MANUAL fan mode The current manual fan mode is displayed above the button Press the FAN button to go to the FAN MODE selection screen shown below Fan Mode Screen a Up Select Fan mode with 4 Up or Down buttons U Down Press DONE button to select mode and exit Press FAN button to go to the FAN Mode screen back to main Thermostat Control Screen Normally the FAN mode is in the Auto mode the system fan is automatically controlled by HVAC system If you want the FAN on manually select the ON mode The fan will run continuously until it is turned off by selecting AUTO mode Optional Fan Mode Fan Cycler f the Fan Cycler feature
6. O Type to w Heat Note during Heat Pump operation the changeover relay once engaged will stay on until an opposite heat or cool call occurs Check your HVAC system requirements for correct settings Minimum Run Time MRT The thermostat has a Minimum Run Time after the start of any heat or cool call This minimum run time assures even heating and cooling cycles Minimum Run Time will keep the system on even if you change the setpoint to a temperature that would satisfy the call until the MRT expires Changing the Mode to OFF will cancel the MRT and the system will turn off immediately MRT can be adjusted in the Installer Settings Menu of the THERMOSTAT Note MRT status is shown in the thermostat System Status LED on screen label Minimum Off Time MOT The thermostat has a Minimum Off Time after any heat or cool call This delay prevents rapid heating cooling cycles and also provides short cycle protection for compressor calls This delay may be noticeable when you change a setpoint and it does not respond immediately due to another call that has recently completed and the MOT delay timer is preventing the restart of the system The MOT delay time can be adjusted in the Installer Settings Menu of the THERMOSTAT There is a minimum of 5 minutes delay to assure compressor protection Note MOT status is shown in the thermostat System Status LED on screen label DCN 141 01773 02 1 19 11 29 INSTALLATION Power The the
7. items will take you to additional submenu screens for specific settings Menu Selection Schedules Jea Up Select menu item with User Settings p Usage Graphs 4 or Down buttons Away Setpoints U Down DONE SELECT 4 Press DONE buiton to exit back to main Press SELECT button to go to the submenu screen thermostat screen Main Menu Selections Note Some menu items are optional They must be enabled in the Installer Settings menu during the system setup to show up in the Main Menu list Schedules Optional This screen is used to view and set the programmable setback schedules of the thermostat User Settings This screen is used to set the Clock Filter Service Maintenance Service Screen Timeout F C mode Sensor Calibration and Backlite Display settings Usage Graph Shows daily heating and cooling run time hours for a week Away Setpoints Sets the energy savings Away setback heating and cooling setpoints ZWave Install Used to install the thermostat into a ZWave network Thermostat Info Screen This screen shows the firmware versions of the Thermostat and the Zwave interface ZWave network IDs and the HVAC system type setup DCN 141 01773 02 1 19 11 12 Main menu Schedules Schedules is an optional menu item It will only show up in the menu list if Schedules is enabled in the Installer settings for the thermostat Provides for local schedule control The Schedules Scr
8. the ZWave Install item Select the item 3 Press the YES button in the ZWave Install screen Your controller will indicate the thermostat was successfully added to its network see your controller s user manual for details Also you can check if the thermostat was successfully added to the network by checking the ZHID Home ID and ZNID Node ID located in the Thermostat Info screen For other specific tasks such as adding the thermostat to Scenes or Groups or deleting the thermostat from an existing network use the Z Wave Install procedure Note Before adding the thermostat to a Z Wave Network check that it does not already belong to one by viewing the Home and Zone ID s located in the Thermostat Info screen An un configured thermostat should show zeros for both the Home and Zone IDs Consult your controller s user manual for details on removing a device from a Z Wave network Setback Mode Operation If your controller does not support full thermostat device class functions it may still be able to control the energy saving AWAY mode of the thermostat through BASIC SET commands Sending the BASIC SET Value 0x00 the thermostat will go into the AWAY mode and use the predefined AWAY setback setpoints These setpoints are set in the Main Menu Away Setpoints item Sending the BASIC SET Value OxFF the thermostat will revert back to the mode it was in Hold or Run before the BASIC SET Value 0x00 command was sent Note that wh
9. to add 1 deg and it will show 75 To change the temperature calibration use the scroll buttons to select the internal or a remote sensor Once selected use the and buttons to change the temperature calibration to the desired setting The value shown in the xx is the calibrated or offset temperature that you want the sensor to show You can refresh the info on this screen by pressing the right hand blank button When you close this screen it may take a few seconds for the temperature displayed on the main thermostat screen to update to the new temperature Sensor Calibration Screen Menu Selection P internal 75 0 E Up Select menu item with e e 4 Remote1 n a 0 or Down buttons Remote2 n a 0 o Down Press DONE button to exit back to main thermostat screen Press buttons to increase decrease the calibration offset DCN 141 01773 02 1 19 11 20 Main Menu User Settings Backlite Display The Backlite Display screen allows you to set the Backlite timeout and contrast Backlite Timeout Sets the time from last button press that the backlite will timeout and turn off The timeout value is adjustable from 0 or 20 to 120 seconds If set to 0 the Backlite will always be ON If set in the range of 20 to 120 seconds the Backlite will turn OFF after the selected time expires Contrast Sets the contrast level of the LCD display adjustable from 0 to 20 Use this control to
10. AC systems supports changeover valve operation for either changeover with cooling or changeover with heating Multi Stage HVAC Compatibility For Standard HVAC systems the HVAC outputs support 2 stages of heating and 2 stages of cooling For Heat Pump HVAC systems the HVAC outputs support 3 stages of heating 2 compressor 1 Aux Heat and 2 stages of cooling Remote Communications The Z Wave thermostats have a Z Wave communications module for communicating to control systems with Z Wave capability DCN 141 01773 02 1 19 11 27 HVAC System Operation and Setup General Heating and Cooling Operation In the HEATING mode the heating system will be turned on at one degree below the setpoint and will turn off at the setpoint This turn on and turn off offset is referred to as the heating setpoint delta T and is adjustable in the Installer Settings menu of the THERMOSTAT It is set to the one degree operation by default In the COOLING mode the cooling system will be turned on at one degree above the setpoint and will turn off at the setpoint Similarly the cooling setpoint delta T is adjustable in the Installer Settings menu In the AUTO mode the system will switch between heating and cooling as determined by the heating and cooling setpoints and the current temperature Once in a heating or cooling mode of operation the normal one degree setpoint control is maintained Setpoint Push Heating and cooling setpoints are forced to ma
11. Model TZ45 Z Wave Thermostat ei NODE th HOLD INSTALLATION AND OPERATION MANUAL DCN 141 01773 02 1 19 11 Model TZ45 Z Wave Thermostat This manual applies to the following product revisions or later revisions up to the next manual revision release Product Part No Firmware Revision Z Wave Thermostat 001 01773 1 00 3 Document Revision History Revision Date Changes 01 10 20 10 Original release 02 1 19 11 Canadian Certification addition Product Specifications Product Model TZ45 Product Thermostat Size Display Backlight Contrast Buttons LEDs Power Temperature Sensing Range HVAC System Type Compatible Multistage System Compatible Standard HVAC Systems Heat Pump Systems Heat Pump change over valve Remote Sensors Communications DCN 141 01773 02 1 19 11 Thermostat for Heating and Cooling HVAC System control Z Wave RF communications enabled 5 7 wide x 4 0 height x 1 2 depth Graphical LCD 2 75 x 1 5 64x128 pixel Yes Blue white Controllable on off timeout Adjustable on screen 6 4 3 green 1 red 24VAC from HVAC System 40F to 190F Standard gas electric or Heat Pump 2 stage heating 2 stage cooling 3 stage heating 2 compressor 1 aux heat 2 stage cooling Selectable change over with cool or with heat 2 connections two wire remote primary or averaging Z Wave RF Tabl
12. T button to go to the submenu screen thermostat screen DCN 141 01773 02 1 19 11 13 Main Menu Schedules Heat and Cool Schedule Screen When you select the Heat and Cool Schedule menu item the day schedule programming screen opens and the schedule for current day will be displayed Use the scroll buttons to highlight the data to be modified Once the data has been highlighted use the buttons to change the value of the data To copy a days schedule to another day or group of days move the cursor to C on the bottom right of the schedule screen When you highlight the the button below will become Copy Press this button to change to the Copy Schedule Screen Schedule Screen Increase or decrease the time or temperature setting with the Up Down buttons Press NEXT button to go to the next day or if Copy Press DONE button to exit back to Main is selected go to Copy Schedule screen Menu screen Use the scroll buttons to navigate forwards or backwards through the time and temperature settings DCN 141 01773 02 1 19 11 14 Main Menu Schedules Heat and Cool Copy Schedule The Copy Schedule screen is a sub screen of the Schedule screen The Copy Schedule screen allows you to copy a day s schedule to another day or group of days First select the day to be copied in the Schedule screen Scroll to the c at the bottom of the Schedule screen to highlight it
13. Y1 or Y2 outputs if test mode on a live system DCN 141 01773 02 1 19 11 23 System Settings Submenu Mechanical Settings Submenu Type Range Gas Elec or Default Gas Elec Selects HVAC type Gas Electric or Heatpump Fan Type Range Gas or Elec Default Gas Selects the Fan type if system is Gas or Electric C O Type Range w Cool or w Heat Default w Cool Selects the Heatpump Changeover Valve type 274 Stage Heat Range Y or Default N Enables the 274 Stage Heat operation Aux Heat HP Range Y or N Default Y Enables the Auxiliary Heat operation Typically the Aux Heat will be heat strips in a Heatpump system 274 Stage Cool Range Y or Default N Enables the 274 Stage Cool operation Schedule Enable Range Y or N Default N When enabled the local thermostats scheduler function is enabled Recovery enable Range Y or N Default N For Heat Pump Systems Intelligent setback recovery is an automatic advance start of heating to allow the system to be at setpoint by the schedule time without the use of Aux heating Note on Delta Settings The Delta T Setting is the delta or difference between the setpoint and current temp for determining when a heat or cool call comes on The delta is the number of degrees away from setpoint H C Delta Range 3 15 degrees Default 3 Sets the minimum separation between heating and cooling setpoints Attempts to lower the cooling below the heating setpoint by this a
14. access other screens and functions of the thermostat Minimized Display Mode Optionally you can set the thermostat to show only the temperature in a minimized display mode This mode can be set on or off in the thermostat Users Settings menu Backlight The thermostat has a backlit display for low light and night visibility It can be set to remain on constantly or to turn off after a 20 120 second delay These are selectable in the User Settings menu Status LEDs The thermostat has four LED s that displays status information The LEDs have dynamic on screen labels that change with the screen being displayed Function Control Buttons The thermostats buttons are Soft Keys meaning that they change functions when you change screens The function of the button is defined by on screen labels that are dynamic and change when you change screens DCN 141 01773 02 1 19 11 4 Z Wave Installation Z Wave controllers from various manufacturers may support the Z Wave Thermostat General V2 Device class used by the RCS Z WAVE Thermostat The following procedure will allow the thermostat to be added to a Z Wave network General Programming Procedure for controllers supporting the thermostat device class 1 Set your primary controller to Include mode fo add the thermostat as a node on your network see your controller s user manual for detailed instructions 2 Inthe Thermostat s Main Menu scroll down to
15. adjust the darkness of the display To light and the display looks faded too dark and dark lines will appear in the display Typically 10 is the correct setting Adjust as needed Backlite Settings Screen Up Select menu item with g lt Up or Down buttons Down Press DONE button to exit back to User Settings screen Press buttons to increase decrease the setting DCN 141 01773 02 1 19 11 21 Main Menu Thermostat Info The Thermostat Info screen displays the current configuration of the Z WAVE Thermostat This information is useful for quick check of firmware versions and HVAC system setup It also shows the Zwave network setting Thermostat information displayed is Thermostat Model and firmware version number Z Wave Settings ZWave Firmware version ZWave Node ID ZWave Home ID System Type Standard or Heat Pump HVAC system Fan Type if HVAC type Standard Gas or Elect OR e Changeover if HVAC type Heat Pump Changeover with cool or changeover with heat When finished viewing this screen press the Done button to return to the main Menu screen or wait for screen to timeout Thermostat Info Screen 0999 Press DONE button to exit back to Main Menu screen DCN 141 01773 02 1 19 11 22 Main Menu gt Installer Settings Hidden Screen The Installer Settings screen is a hidden screen designed for installer use only Do not change any settings in this screen
16. arts Cooling Delta Stage 2 OFF Range 0 to 8 degrees Default 0 Sets the delta from setpoint that stage 2 Cooling stops Stage 2 turns off at setpoint Delta Stage 2 Max Heat SP Range 50F to 90F 4C 32C Default 90F 32C Sets the maximum heating setpoint value Will not ramp or accept setpoints higher that this maximum Min Cool SP Range 55F to 99F 10C 37C Default 55F 10C Sets the minimum cooling setpoint value Will not ramp or accept setpoints lower than this minimum Minimum Run Time Range 1 9 MinutesDefault 3 Sets the minimum run time before a heating cooling cycle can turn off Sets heating cooling cycle time Prevents rapid cycling Minimum Off Time Range 5 9 Minutes Default 5 Sets the minimum off time before another heating cooling cycle can begin Provides compressor short cycle protection Fan Cycler Submenu The fan cycler function cycles the HVAC system fan for an ON period followed by an Off period continuously Used to provide minimum air ventilation requirements When the Fan ON time is set to a value greater than 0 an additional Cycler FAN mode is present when pressing the FAN button Fan ON Time Range 0 120 minutes Default 0 OFF Fan OFF Time Range 10 120 minutes Default 10 DCN 141 01773 02 1 19 11 25 Installer Settings Summary Setting Range Default Display Lock YorN N Locks out front but
17. ce screen will show the accumulated Heat and Cool Runtime hours as well as the Service Interval that will be used to trigger a Maintenance Message Any HEAT or COOL type of HVAC operation will cause the respective Runtime values to increase When the combined HEAT and COOL Runtime hours equals the Service Interval hours the Red LED will flash along with a Maint message to remind you your HVAC system may require periodic maintenance Pressing the Menu button will take you to the Filter Service screen The Reset button can be pressed and the HEAT and COOL Runtime values will be reset to zero The Service Interval period can be changed using the buttons Maintenance Service Screen Press DONE button to exit back to User Press RESET to reset the runtime counters Settings screen Use buttons to increase or decrease the service interval hours DCN 141 01773 02 1 19 11 19 Main Menu User Settings Sensor Calibration The Sensor Calibration screen allows you to change the temperature calibration of the internal temperature sensor You can change the temperature calibration by 7 degrees When the Sensor Calibration screen is selected it will show the current temperature calibration The 75 in the example screen below and the current number of degrees of offset being applied 1 deg in the example If the sensor s actual temp is 74 with 0 degrees of offset and you want it to be 75 then press
18. displayed next to the Setpoint Up Down buttons DCN 141 01773 02 1 19 11 6 Thermostat Operation Buttons Menu go to the Main Menu Screen to select other thermostat settings screens System Mode go to the System Mode screen to set thermostat operating mode Fan Mode to the Fan mode screen to set the fan mode Schedule Mode go to the Schedule mode screen to set schedule mode or setback Setpoint Up Down Buttons Press either the Up or Down buttons to go to the Heating or Cooling Setpoint screen Clock Display The current time is displayed in the upper left corner of the main screen Set the clock from the User Settings Menu The time will blink when the clock has not been set LED Displays The Thermostat Control Screen has the following LEDs and on screen labels LED L1 Green System Operation mode SYS OFF displayed gt HVAC system is OFF LED Off SYS MOT displayed gt Minimum Off Time MOT delay On is active LED Off HEAT ON displayed HVAC system is heating LED On COOL ON displayed HVAC system is cooling LED On HEAT MRT displayed gt HVAC system is Heating and Minimum Run Time MRT delay off is active LED On o COOL displayed gt HVAC system is Cooling and Minimum Run Time MRT delay off is active LED On 39 EE o LED L2 Green System Stage mode o display gt 1 stage heating or cooling LED OFF o 2 Stg displayed gt Stage 2 heating or coolin
19. e The setpoints can be set from 50 F to 90 F 4 C to 32 C for heating or 55 F to 99 F 10 C to 37 C for cooling Setpoint Push Note that you cannot lower the cooling setpoint below the heating setpoint The thermostat will oush the heating setpoint lower if you try to lower the cooling setpoint below the heating setpoint It maintains a 3 degree separation between the heating and cooling setpoint The same is true for raising the heating setpoint above the cooling setpoint Again the thermostat will push the cooling setpoint up to maintain the 3 degree separation NOTE If the system mode is OFF pressing either the Up or Down buttons will take you to the System Mode screen You must first set an operating mode before you can change the setpoints To change the Heat Setpoint you must be in Heating mode to change the Cool Setpoint you must be in the Cooling mode If you are in Auto mode the mode of the last system call will be the setpoint screen displayed DCN 141 01773 02 1 19 11 8 System Mode Press the System Mode button to display the System Mode selection screen System Mode Screen Up Select system mode with Up or Down e Down buttons Press DONE button to select mode and Press MODE button to go to the System Mode screen exit back to main thermostat screen Mode Operation OFF Mode System is off No heating or cooling will come on If system was on it will turn off
20. e of Contents OVetVieW Loan D ROUEN DAMIANI Qu E 4 Z Wave Installation RE 5 Seiback Mode Operallon rust P eb di idee bee be oe bed e EP ees 5 Incl sion and ExcluSiIOn o o to anat eo a He EE ERU m DO AS tels 5 Thermostat Control Screen 15 siete 6 Temperature DISplay s ii 6 Setpoint Be e 6 Thermostat Operation Butloris t t e ec De eu o BE Ro Po coperta bo eg 7 Setpoint Up Down Bulttons eese esee eene nennen nnne 7 Clock DISPlAY m Aaa 7 LED Displays nuts ee ee tia a pitis 7 Setting Heating or Cooling Setpoints sessi esent tnnt 8 Schedules Screens i d irr e Er ir der e dar e den iden didn e aAA E EAE RA AEn 13 User Settings SCreeni si RE HE e EE e E HER e Eo e E ribus 16 Thermostat Iola SGre orratio inana oe aede dette 22 Main Menu gt Installer Settings Hidden Screen 23 Installer Settings 26 HVAC System 27 RREA eS ee 27 Remote COMMUNICATIONS RR 27 HVAC System Operation and Setup 00 00 000000100000 28 Standard HVAC System
21. ee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures e Heorient or relocate the receiving antenna e Increase the separation between the equipment and receiver e Connect the equipment into an outlet on a circuit different from that to which the receiver is connected e Consult the dealer or an experienced radio TV technician for help Any changes or modifications not expressly approved by the party responsible for compliance could void the user s authority to operate the equipment IC This device complies with Industry Canada license exempt RSS standard s Operation is subject to the following two conditions 1 this device may not cause interference and 2 this device must accept any interference including interference that may cause undesired operation of the device Le pr sent appareil est conforme aux CNR d Industrie Canada applicables aux appareils radio exempts de licence L exploitation est autoris e aux deux conditions suivantes 1 l appareil ne doit pas produire de brouillage et 2 l utilisateur de l appareil doit accepter tout brouillage radio lectrique subi m me si le brouillage est susceptible d en compromettre le fonctionnement DCN 141 01773 02 1 19 11 33
22. een allows you to review and set the setback schedule for the thermostat The thermostat has a 4 x 7 schedule Four times a day can be selected for changes to the heating and cooling setpoints Each day of the week can have a different schedule Groups of days can be copied with the same schedule When the thermostat is set to Hun mode the schedule will be executed daily with the setpoints being changed as per that days schedule stored in the thermostat Hold mode stops schedule operation and holds the current setpoints until changed manually or by network commands The Schedules Screen gives you the option of setting a custom setback schedule or to load one of two preset schedules Menu Options e Heat and Cool You can change the individual day hour and setpoints for the Heating and Cooling schedule by selecting this menu item e Preset Comfort This is a preset schedule with mild setbacks Select this menu item to load the Comfort schedule into the thermostat Confirmation screen will be displayed for Yes No entry e Preset EnergyMiser This is a preset schedule with deeper setbacks Select this menu item to load the EnergyMiser schedule into the thermostat Confirmation screen will be displayed for Yes No entry Schedules Screen Select Schedule p N Up Select menu item with a Preset EnergyMiser v Mam Up or Down buttons gt U Down DONE SELECT W Press DONE button to exit back to main Press SELEC
23. en the BASIC SET commands are sent the TZ45 will momentarily display the new mode on the Schedule Mode screen Inclusion and Exclusion Inclusion or exclusion is started by putting the controller into add node or remove node state and performing the General Programming Procedure outlined above As part of the process the thermostat sends a node information frame at normal power Low power inclusion or low power exclusion is not possible DCN 141 01773 02 1 19 11 5 Thermostat Control Screen Minimized Screen The Minimized Screen shows only the room temperature jj It is displayed if you set the Screen Timeout in U the User Settings Menu to a time greater than 0 If set to 0 the minimized screen is disabled and the main thermostat screen is normally displayed E N Ww UV Ot Press any button to return to the thermostat control screen Main Thermostat Control Screen Status Indicator y jj Setpoint Mus x 4 Up Down 149 Buttons pe Heating H button labels Q Q Ec ee Setpoints Thermostat Operation Buttons The main Thermostat Control Screen is the screen that is normally displayed on the thermostat Temperature Display The thermostat will normally display the current room temperature from the internal temperature sensor or a remote sensor if installed Setpoint Display The current heating and cooling setpoints are
24. f most central systems If you have separate heating and cooling systems with separate transformers cut jumper JP1 Wire the heating 24V R red wire to the thermostat s 24RH terminal Wire the cooling systems 24V R red wire to thermostat s 24RC terminal Also wire the cooling systems 24VAC Common blue wire to the thermostat s 24COM terminal DCN 141 01773 02 1 19 11 31 HVAC SYSTEM CONNECTION Heat Pump HVAC System Wiring TZ45 Thermostat Back Note Rev Connect cable shield to Optional 24COM Remote i Sensors 24COM 24RC 24RH W1 Heat 1 G Fan Y1 Comp 1 RS1 RS1 RS2 RS2 C O Valve W2 0 Comp 2 Y2 Twisted Pair shielded cable wiring O00000 SYSTEM HVAC System THERMOSTAT CONNECTION 24VAC Common RC 24VAC Return W1 Aux Heating Y1 Cooling Stage 1 G Fan O B Changeover Valve Installation Notes Y2 Cooling Stage 2 Heat Pump HVAC System Setup You must set up the system configuration in the Installers Settings Mechanical Settings Menu page 23 System Type Set the mechanical system type to Heat Pump Fan Type Not used for Heat Pump systems this is automatically set when selecting heat pump system type Single Stage Compressor Systems use Y1 for stage 1 heating cooling and W1 for stage 2 Aux heating heat strips Two Stage Compressor Systems use 7 for stage 1 Y2 for stage 2 heating cooling and W1 for stage 3 Aux heating heat strips
25. g is active LED On o Aux Heat displayed gt Stage 3 heating is active LED On LED L3 Green Schedule mode Shows state of Schedule Run Hold Mode o displayed gt Setback schedule is running LED Off o Hold displayed gt Schedule is off temperature setpoint hold in effect LED On o Away displayed gt Away setback mode is active LED On LED L4 RED Alert LED Used for system alerts o display gt No alerts LED Off o Alert Text displayed gt Specific alert text Filter Maint LED On DCN 141 01773 02 1 19 11 7 Heating Cooling Setpoint Setting Setting Heating or Cooling Setpoints Setpoint Up and Down Buttons Press either the Up or Down button in the main Thermostat Control Screen to go to the current system operating mode Heating or Cooling Setpoint screen as shown below Heating Cooling Setpoint Adjustment Screen HEATING SETPOINT Up Heating and Cooling setpoint setting buttons 2 v U Adjust setpoint to Down desired temperature DONE Press Done button to select new setpoint and exit back to main thermostat screen The UP and DOWN buttons adjust the setpoint temperature Pressing the UP button will increment the setpoint value by one degree and conversely pressing the Down button will decrement the setpoint one degree Pressing and holding a button will cause the setpoint to continuously change until the button is released Setpoint Rang
26. ill take you directly to this screen to set the clock Set Clock Screen Increase or decrease the time or date setting with the Up Down buttons 0999 Press BACK button to exit back to User Press SET button to set the time and Exit Settings screen without setting the time Use the scroll buttons to navigate forwards or backwards through the time and date settings DCN 141 01773 02 1 19 11 17 Main Menu User Settings Filter Service The Filter Service screen will show the accumulated Filter Runtime hours as well as the Service Interval that will be used to trigger a Filter Message Any type of HVAC operation that causes the HVAC system fan to run will cause the Filter Runtime value to increase When the Runtime hours equals the Service Interval hours the Red LED will flash along with a Filter message to remind you to replace the filter Pressing the Menu button will take you to the Filter Service screen Once the filter has been replaced press the Reset button to reset the Filter Runtime value to zero The Service Interval period can be changed using the buttons Filter Service Screen Press DONE button to exit back to User Press RESET to reset the runtime counter and exit Settings screen Use buttons to increase or decrease the service interval hours DCN 141 01773 02 1 19 11 18 Main Menu User Settings Maint Service The Maintenance Servi
27. intain a separation between them with a default setting of 3 degrees If the heating or cooling setpoint is changed to be within the setpoint delta the system will automatically push the other setpoint to maintain the setpoint delta separation The H C setpoint delta is also adjustable in the Installer Settings menu of the THERMOSTAT Standard HVAC System Types Gas or electric heating systems are considered Standard HVAC systems These systems consist of an indoor furnace blower assembly and an outdoor AC condensing unit for those systems with air conditioning installed These systems in general are referred to as central forced air HVAC systems You must configure the Thermostat to match your HVAC system type for correct system operation Setup Standard System Type Selection To configure the Thermostat for standard Gas Electric HVAC system operation change the Type in the Installer Settings System Settings Mechanical Settings menu option to Gas Elec Fan Type Selection Gas systems do not require a fan output for heating operation Set the Fan Type in the Installer Settings System Settings Mechanical Settings Fan Type to GAS Electric and hydronic heating systems do require a fan output with the call for heating Set the Fan Type in the Installer Settings System Settings Mechanical Settings Fan Type to ELEC Be sure to check your HVAC system s requirements Heat Pump HVAC System Types Hea
28. is enabled in the Installer Setup the additional fan mode Cycle will be shown in the Fan Mode menu This mode cycles the fan on and off continuously for fresh air ventilation according to the settings in the Installer Setup DCN 141 01773 02 1 19 11 10 Schedule Operation Schedule Mode The Schedule button sets the schedule operation to RUN or HOLD mode It also allows you to select an AWAY setback mode Pressing the Schedule button will take you to the SCHEDULE MODE menu screen as shown below Schedule Mode Screen Up Select Schedule mode 4 with Up or Down E wn buttons Vi Vu S Press DONE button to select mode and Press the Schedule button to go to the exit back to main thermostat screen Schedule Mode screen Schedule Modes RUN Mode n the run mode the thermostat schedule is running and setpoints will change according the times and temperatures in the internal schedule HOLD Mode This holds the current temperature setpoint settings The schedule operation is disabled AWAY Mode 7his is an energy saving setback mode When selected the AWAY mode setback temperature setpoint settings are used It also inhibits schedule operation AWAY mode setpoints are set in the Main Menu Away Setpoints item DCN 141 01773 02 1 19 11 11 Main Menu The Menu button on the main Thermostat Control Screen selects the MAIN MENU screen The Main Menu is a list of the primary thermostat setting screens Selecting these
29. mount will PUSH the heating setpoint down to maintain this separation Same for setting the heating setpoint above the cooling setpoint it will PUSH the cooling setpoint up to maintain this separation Heating Delta Stage 1 ON Range 1 to 8 degrees Default 1 Sets the delta from setpoint that stage 1 heating starts Heating Delta Stage 1 OFF Range 0 to 8 degrees Default 0 Sets the delta from setpoint that stage 1 heating stops Stage 1 turns off at setpoint Delta Stage 1 Heating Delta Stage 2 ON Range 1 to 8 degrees Default 2 Sets the delta from setpoint that stage 2 heating starts Heating Delta Stage 2 OFF Range 0 to 8 degrees Default 0 Sets the delta from setpoint that stage 2 heating stops Stage 2 turns off at setpoint Delta Stage 2 Heating Delta Stage 3 ON Range 1 to 8 degrees Default 3 Sets the delta from setpoint that stage 3 heating starts Heating Delta Stage 3 OFF Range 0 to 8 degrees Default 0 Sets the delta from setpoint that stage 3 heating stops Stage 3 turns off at setpoint Delta Stage 3 DCN 141 01773 02 1 19 11 24 Cooling Delta Stage 1 ON Range 1 to 8 degrees Default 1 Sets the delta from setpoint that stage 1 cooling starts Cooling Delta Stage 1 OFF Range 0 to 8 degrees Default 0 Sets the delta from setpoint that stage 1 Cooling stops Stage 1 turns off at setpoint Delta Stage 1 Cooling Delta Stage 2 Range 1 to 8 degrees Default 2 Sets the delta from setpoint that stage 2 cooling st
30. rmostat requires 24VAC power from the HVAC system it is controlling Connect the 24VAC Common typically the Blue wire terminal and 24VAC R typically the Red wire terminal from the HVAC system to the thermostats HVAC System terminal block 24VCom and 24V RH or 24V RC terminals the RH and RC terminals are default tied together Common or Split Transformer Systems Most HVAC systems have a common heating and cooling transformer A trace is connected to tie the RH and RC inputs together for this configuration If you have a system with separate heating and cooling transformers you will need to split the RH and RC jumper by cutting the trace on the PCB When wiring split systems wire the heating systems 24VAC R red wire to the thermostat s RH terminal and wire the cooling systems 24VAC H to the thermostat s RC terminal Also wire the cooling systems 24VAC Com to the thermostat s 24VAC Com terminals Note Do not split RC RH for Heat Pump systems Remote Sensors The TZ45 is compatible with Model RTS3 and RTS4 two wire remote sensors Refer to the wiring instructions included with the remote sensor NOTE Remote Sensors require shielded twisted pair cable Connect the shield to the 24VAC Com connector on the wiring terminal strip DCN 141 01773 02 1 19 11 30 HVAC SYSTEM CONNECTION JP1 internal RC RH Jumper onithe circuitiboafd Bit TT lwiczcoccii izizc2l2222e22 52 222221222220 L2 24COM Sensors Cut for separate heating
31. t Pump HVAC systems are combined heating and cooling systems The system consists of an indoor air handler a blower fan and coil assembly and an outdoor unit Heat pumps change from heating mode to cooling mode by switching the refrigerant flow using a changeover or reversing valve In both heating and cooling operation the compressor and fan outputs are on and the state of the changeover output determines if heating or cooling is being provided Heat pumps can have one or two stages of compressor operation plus an optional third stage of electric heat strips DCN 141 01773 02 1 19 11 28 The third stage of heating will be turned on when the current temperature falls 3 deg below the current setpoint and will turn off at the setpoint Setup Heat Pump System Type Selection To set the Thermostat for Heat Pump HVAC operation change the Type in the Installer Settings System Settings Mechanical Settings menu option to Heat Pump Changeover Type Selection O B terminal Most heat pump systems are designed to work normally in the heating mode and require a change over output for cooling operation There are two types O and B Change the C O Type in the Installer Settings System Settings Mechanical Settings menu option to match your system type Changeover with Cooling orange wire from HVAC system Set C O Type to w Cool This is the default setting B Changeover with Heating brown wire from HVAC system Set C
32. the filter timer alert Maint Service Go to the Maintenance Service Screen Sets resets the maintenance timer alert Screen Timeout Set the display timeout time in seconds Options are 0 or 15 to 120 default set to 0 seconds This is the time before the main thermostat screen reverts to the Minimized Screen temperature display only after the last button press Minimized Screen feature is disabled by setting this time to 0 F C Settings Go to the F C Settings Screen Select which temperature display mode you desire Fahrenheit F or Celsius C Sensor Calibration Go to the Sensor Calibration Screen This screen allows you to set the calibration of the internal and remote temp sensors Backlite Display Go to the Backlite Display settings screen This menu allows you to set the backlight timeout period and adjust the display contrast DCN 141 01773 02 1 19 11 16 Main Menu User Settings Set Clock The Set Clock screen allows you to set the Thermostat s internal clock To set the Time and Date move the cursor with the navigation arrows until the data you want to change is highlighted Using the and buttons to increment or decrement the data to the desired setting When finished press the SET button to return to the Main Menu screen or wait for screen to timeout NOTE If the clock has been reset by an extended power outage the Clock display on the thermostat screen will be blinking Pressing the MENU button w
33. tons F C Mode CorF F Screen Timeout 0 20 120 0 seconds Schedule Enable YorN N Max heat setpoint 50F 90F 4C 32C 90F 32C Min cool setpoint 55F 99F 10C 37C 55F 10C Min Run Time MRT 1 9 3 Min Off Time MOT 5 9 5 Mechanical Type Std or HP Std Mechanical Fan Type Gas or Elec Gas Mechanical C O Type w Heat or w Cool w Cool Mechanical 2 Stage Heat YorN N Mechanical Aux Heat YorN Y Mechanical 2 Stage Cool YorN N Filter Interval 300 Maint Interval 3000 H C Delta 3 15 3 Heat Delta Stage 1 On 1 8 1 Heat Delta Stage 1 Off 0 8 0 Heat Delta Stage 2 1 8 2 Heat Delta Stage 2 Off 0 8 0 Heat Delta Stage 3 On 1 8 3 Heat Delta Stage 3 Off 0 8 0 Cool Delta Stage 1 On 1 8 1 Cool Delta Stage 1 Off 0 8 0 Cool Delta Stage 2 1 8 2 Cool Delta Stage 2 Off 0 8 0 Fan Cycler ON time 0 120 0 0 Fan Cycler OFF Fan Cycler Off Time 10 120 10 DCN 141 01773 02 1 19 11 26 HVAC System Connection The thermostat connects to the HVAC system s thermostat connections just like a traditional thermostat does HVAC System Compatibility The thermostat is compatible with most heating and cooling systems There are two types of HVAC systems Standard gas electric and Heat Pump systems The system type is selectable from the Installer Screen System Settings Mechanical Settings submenu For Standard HVAC systems Gas heating or Electric heating For Heat Pump HV
34. unless you are a qualified service technician Changing these settings will affect the operation of the heating cooling system To enter this screen go to the main menu selection screen and press and hold the two inner buttons for 3 seconds until the Installer Settings screen appears The Installer Settings screen displays the current internal settings of the thermostat You can view and change the settings from this screen Scroll to the desired function and use the buttons to change Installer Settings Screen Installer Setti ngs ispl Up Select menu item with 0 4 Up or Down buttons Down Press DONE button to exit back to Main Menu screen Press buttons to increase decrease the setting Installer Settings Menu items Display Lock Range Y or N Default N Y Display LOCKED N Display unlocked Allows you to lock or unlock the thermostat buttons When the buttons are locked you can still access the main menu but you will not be allowed to select any menu options The Installer Settings hidden button operation is always operational allowing you to return to this screen and turn Display Lock off Service Mode Submenu Test Mode Range Y or N Default N Y Test mode on Reduces all delays to 10 sec for quicker system testing N Test mode off Normal system delays CAUTION in test mode all system safety delays are shorten Do not operate the system compressor in test mode Disconnect
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