TZ43 INSTALLATION MANUAL 141-01652-03
Contents
1. HVAC System Standard or Heat Pump Caution Set Installer Settings to Correct System Type HVAC SYSTEM THERMOSTAT CONNECTOR Optional Remote 24VAC Common Temperature R 24VAC Return Sensors W1 Heat Stage 1 W2 O Heat Stage2 G Fan Y1 Comp Stage 1 Y2 Comp Stage 2 for HP HVAC Systems OzChangeover Valve RC RH Jumper JP1 Cut for separate Heating and Cooling Transformers Typical Thermostat Wiring Color Codes HVAC System Transformer Most central HVAC systems have a common heating and cooling transformer This is the factory default setting for Jumper JP1 In some cases you may have separate heating and cooling systems each with their own transformer In that case cut Jumper JP1 and wire the heating transformer red wire to the RH terminal and the cooling system transformer red wire to the RC terminal Wire the cooling system s 24VAC Com to the TZ43 s 24VAC Com terminal DCN 141 01128 03 9 22 08 35 ZWave Command Class Information The TZ43 supports the following Command Classes Zwave Command Class Comments COMMAND CLASS THERMOSTAT MODE The operating mode of the TZ43 thermostat COMMAND CLASS THERMOSTAT OPERATING STATE Returns the operating state of the HVAC system COMMAND CLASS THERMOSTAT SETPOINT The TZ43 Setpoint heat or cool COMMAND CLASS THERMOSTAT FAN MODE The Fan Mode COMMAND CLASS THERMOSTAT FAN STATE2. Mechanical Settings Submenu Type Range Gas Elec or Heatpump 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 Set the Heatpump Changeover type 2 Stage Heat Range Y or N Default N Enables the 2 Stage Heat operation Aux Heat HP Range Y or N Default N Enables the Auxiliary Heat operation Typically the Aux Heat will be heat strips in a Heatpump system 2 Stage Cool Range Y N Default N Enables the 2 Stage Cool operation Schedule Override Range Y or N Default N When enabled the scheduler function is disabled and the Run Hold button does not appear on the main screen DCN 141 01128 03 9 22 08 22 Note 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 4 Sets the minimum separation between heating and cooling setpoints Attempts to lower the cooling below the heating setpoint by this amount 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 setpoin
3. B CO w Heat mode o Y1 Compressor Stage 1 0000000 O Y2 Compressor Stage 2 JP1 RH and RC Jumper Do not cut Leave RH and RC connected for Heat Pump Systems Heat Pump HVAC System Setup Notes Single Stage Compressor Systems use Y1 for stage 1 heating cooling and W1 for stage 2 heating heat strips Two Stage Compressor Systems use Y1 for stage 1 Y2 for stage 2 heating cooling and W1 for stage 3 heating heat strips NOTE You must configure the Changeover valve setting to work correctly with your HVAC system Changeover settings are made in the Installer Settings System Settings Mechanical Settings menu Changeover with cool is typical for most systems Check your system information to be sure If you get cooling when you expect heating change the C O type to the opposite setting DCN 141 01128 03 9 22 08 33 HVAC SYSTEM QUICK TEST If you need to verify that the HVAC system is operational you can perform the following test Thermostats like the TZ43 are just switches to the HVAC system as shown in the diagram below This is a simplified example of a thermostat and a standard HVAC wiring diagram The HVAC system operation can be tested by duplicating the thermostat switch operation by shorting across the thermostat terminals on the HVAC system HVAC SYSTEM STANDARD GAS AC TYPICAL THERMOSTAT Q C 24VAC COMMON R 24VAC HOT G FAN Thermostat Connection COMP RELAY Note The
4. H Delta Stage 3 Off 0 8 18 C Delta Stage 1 On 1 8 19 C Delta Stage 1 Off 0 8 20 C Delta Stage 2 On 1 8 21 C Delta Stage 2 Off 0 8 25 SB Mode 0 1 Setback mode 0 No Setback 1 Setback 69 Service Mode Test 0 1 0 No Service Mode 1 Service Mode enabled 75 Fan Cycler ON Time 0 120 On duration of Fan Cycler 76 Fan Cycler OFF Time 0 120 Off duration of Fan Cycler 77 2nd Stage Heat Enable 0 1 0 No 2 Stage Heat 1 2 Stage Heat 78 Aux Heat Enable 0 1 0 No Aux Heat 1 Aux Heat enabled 79 2nd Stage Cool Enable 0 1 0 No 2 Stage Cool 1 2 Stage Cool 141 01128 03 9 22 08 141 01128 03 9 22 08 37
5. 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 Maintenance Service Heat Runtime 0 HRS Cool Runtime 0 HRS Service Interval 3000 HRS Screen navigation buttons Return to Main Menu Screen Increase the Service Interval by 1 hour Decrease the Service Interval by 1 hour Reset the Heat Coo l Runtime Timers 141 01128 03 9 22 08 18 Menu User Settings Sensor Calibration The Sensor Calibration screen allows you to change the temperature calibration for the internal and any external remote temperature sensors attached to the Thermostat You can change the temperature calibration by 7 degrees When the Sensor Calibration screen is selected it will show the internal and all detected remote sensors Each sensor found will show the current temperature The 75 in the example screen below and the current number of degrees of offset being applied 1 deg in the example means that the remote sensor is not attached If the sensor s actual temp is 74 with 0 degrees of offset and you want it to be 75 then press to add 1 deg and it will show 75 To change t
6. Menu screen DCN 141 01128 03 9 22 08 21 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 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 Display Lock Range Y or N Default N Y Display LOCKED 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 Service Mode Range Y or N Default N Y Service Mode On N Service Mode Off Sets the thermostat timers in a test mode with short delays All runtime and staging delays are reduced to 15 seconds to speed up system checkout and testing Caution compressor short cycle protection is lost in this mode System Settings Submenu
7. RS2 Type Range A Curve Type 2 Type 3 Default Type 2 Selects the 10K Thermistor curve for Remote Sensor 2 If present Remote Sensor 2 will be averaged with the Primary sensor either the internal or RS1 Optionally RS2 can be configured to be an Outdoor sensor see RS2 Location RS2 Location Range In or Out Default In RS2 can optionally be configured as an Outdoor sensor Zwave Install Button Submenu Used to install un install the TZ43 into a Zwave Network DCN 141 01128 03 9 22 08 24 Installer Settings Summary Setting Range Default Display Lock Y or N Locks out front buttons Service Mode Y or N N Turns on service mode shortens delays to 15 seconds CAUTION no compressor protection F C Mode Cor F F Screen Timeout 0 240 0 seconds Schedule Override Y or N N Max heat setpoint 10 109 109 Min cool setpoint 6 110 6 Min Run Time MRT 1 9 6 Min Off Time MOT 5 9 6 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 Y or N N Mechanical 2 Stage Cool YorN N Remote Sensor1 Type A curve Type 2 Type2 Replaces internal sensor Type 3 Remote Sensor2 Type A curve Type 2 Type2 Averages with primary sensor or an Type 3 outside sensor if location set to Out Remote Sensor Loca
8. User Settings Menu DCN 141 01128 03 9 22 08 16 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 Filter Service Filter Runtime 12 HRS Service Interval 300 HRS East Screen navigation buttons Return to Main Menu Screen Increase the Service Interval by 1 hour Decrease the Service Interval by 1 hour Reset the Filter Runtime Timer 141 01128 03 9 22 08 17 Menu User Settings Maint Service The Maintenance Service 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
9. if you try to lower the cooling 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 the setpoint buttons will not change the setpoints To change the Heat Setpoint you must be in Heat mode to change the Cool Setpoint you must be in the Cool mode MENU Button The Menu button changes the screen display to the MAIN MENU screen which show what other functions are available on the Thermostat These are dynamic and can change with the version of the thermostat you have but the standard ones include Main Thermostat Screen Menu Button Q Main Menu Screen MENU Messages Schedules User Settings Thermostat Info MODE Button The MODE button controls the HVAC system mode The current mode selected is displayed above the button Pressing the MODE button will cause the mode and display to change to the next mode The system mode cycles from Off to Heat to Cool to Auto and back to Off again with each press of the MODE button When the HVAC system type is set to Heat Pump the mode selection will include EHEAT for Emergency Heat mode Mode Button OFF Off MODE Heat Cool pe EHEAT HP system only DON 141 01128 03 9 22 08 8 Thermosta
10. the days desired press the Copy button Exit the Copy Schedule screen with the Back button Copy Schedule Screen Copy Monday Schedule to Screen navigation buttons Return to Schedule Screen Yes Copy schedule to this day Move back with selection bar Move forward with selection bar No Do not copy to this day Copy Copy the schedule to the selected days 141 01128 03 9 22 08 14 Main Menu User Settings The User Settings screen allows you to set or change various user options of the thermostat such as the Clock Minimized Screen timeout Fahrenheit Celsius mode Sensor Calibrations and Display settings Menu options Set Clock Select this menu item to go to the Clock setting screen Filter Service Sets resets the filter timer alert Maint Service Sets resets the maintenance timer alert Screen Timeout Select the Screen Timeout time in seconds Options are 0 or 15 to 127 default set to 0 seconds This is the time before any screen reverts to the Minimized Screen temperature display only after you stop pushing buttons Minimized Screen feature is disabled by setting this time to 0 F C Mode Select which temperature display mode you desire Fahrenheit F or Celsius C Sensor Calibration Select this menu item to go to the Sensor Calibration screen Backlite Display Select this menu item to go the Backlite Display settings screen This menu allows you to set the backl
11. until changed by manual or remote network command In the Run mode the schedule loaded into the thermostat is activated and setpoints will change according to the schedule and the time and day of week Run Button Run RUN ub DON 141 01128 03 9 22 08 9 Thermostat Control Screen LED Displays The Thermostat Control Screen has the following LED labels and descriptions numbered from top to bottom 1 4 o LED 1 Green System Operation display LED Off SYS OFF displayed gt HVAC system is OFF LED Off SYS MOT displayed gt Minimum Off Time MOT delay on is active LED On SYS ON displayed gt HVAC System is running LED On SYS MRT displayed gt Minimum Run Time MRT delay off is active LED 2 Green System Economy Mode display o LED OFF Econ displayed gt Economy or 1 stage heating or cooling only o LED 2 Stg displayed gt Stage 2 heating or cooling is active o LED On Aux Heat displayed gt Stage heating is active o LED 3 Green Run Hold display Shows state of Schedule Run Hold Mode o LED Off displayed gt Setback schedule is running o LED On Hold displayed Schedule is off temperature setpoint hold in effect o LEDARED Alert LED Used for other system alerts o LED Off No Alerts present o LED Alert Text displayed gt Specific alert text DCN 141 01128 03 9 22 08 10 The Ther
12. week can have a different schedule Groups of days can be copied with the same schedule When the thermostat is set to Run 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 Preset EnergyMiser This is a preset schedule with deeper setbacks Select this menu item to load the EnergyMiser schedule into the thermostat Schedules Screen Select Schedule Heat and Cool Preset Comfort Preset EnergyMiser Screen navigation buttons Return to Main Menu Screen d Move menu selection pointer up Move menu selection pointer down Select the schedule to view or modify DCN 141 01128 03 9 22 08 12 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 highl
13. 8 03 9 22 08 29 INSTALLATION Remote Temperature Sensors The TZ43 can accept up to 2 remote temperature sensors The first sensor RS1 will replace the internal temperature sensor of the TZ43 The second sensor RS2 can either be an averaging sensor or an Outside sensor Remote sensors compatible with the TZ43 need to have the following characteristics 10K NTC Thermistor A Curve Type Type curves Compatible RCS Remote sensors are OS5 Outdoor Sensor A Curve RSxx Indoor Surface Mount Type 11 RSxx Indoor Flush Mount Type 11 Note When using remote sensors it is important to properly configure the TZ43 for the particular sensor type This menu option is located in Installer Settings Remote Sensors Failure to properly configure the sensor will result in in accurate temperature readings Remote Sensor 1 Remote Sensor 1 RS1 if installed will replace the internal temperature sensor of the TZ43 This allows the TZ43 to be located in a location different than the area where the temperature will be measured Wire specification 2 conductors 22Ga twisted pair or Cat 3 5 wire 100ft maximum length Remote Temp Sensor RS1 Sensor Remote Sensor 2 Remote Sensor 2 RS2 if installed will be averaged with the primary temperature sensor either the TZ43 internal sensor or RS1 Optionally RS2 can be configured to be an outside temperature sensor by selecting the RS2 location in the Installer Settings Remote
14. COMMON RED 24VAC RETURN omes WHITE W 1 Heat Stage 1 W2 Heat Stage 2 G Fan YELLOW o Y1 COMP 1 Compressor Stage 1 BROWN o Y2 COMP E Y2 Compressor Stage 2 IJP1 internal RC RH E Typical HVAC system ee notes thermostat wiring color codes Be sure to verify your systems wiring color codes Installation Notes Standard HVAC System Setup Notes Single Stage Systems use W1 for heating stage 1 and Y1 for cooling stage 1 Two Stage Heating systems use W1 for stage 1 and W2 for stage 2 heating Two Stage Cooling systems use Y1 for stage 1 and Y2 for stage 2 cooling HVAC System 24VAC Transformer If you have an integrated heating and cooling system with a single transformer do NOT cut jumper JP1 Wire the 24V Return red wire to either RH or RC This is typical of 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 control unit s RH terminal and run the cooling systems 24V red wire to control unit s RC terminal Also wire the cooling systems 24VAC Com to the control units 24VAC Com terminal DCN 141 01128 03 9 22 08 32 HVAC SYSTEM CONNECTION Heat Pump HVAC System Wiring Heat Pump HVAC System THERMOSTAT CONNECTION 24VAC COMMON 24RH RED 24VAC RETURN O B Changeover CO Valve NOTE Set correct Changeover value operation for O CO w Cool e G Fan or
15. ERE 31 Standard Gas Electric HVAC System Wiring sse 32 Heat Pump HVAC System Wiring a nnne 33 HVAC SYSTEM QUICK TEST 10s ccc nie eae nu eee 34 ZWave Command Class Intormatton nennen nnne nennen 36 TZ43 Varlable oco ed PG Ped rede ET EE HEU E HEUTE 36 DON 141 01128 03 9 22 08 3 Overview TZ43 Thermostat The TZ43 thermostat provides for typical thermostat control of a central heating and cooling HVAC system plus has the added feature of ZWave 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 In the default thermostat control screen shown below it displays the current temperature setpoint system mode manual fan mode time outside temperature and other information 10 25 AM Outside 60 Status Sys Off i Setpoint Indicator Econ Up Down LEDs Run Buttons MENU On screen Heat H dynamic labels And Cool C 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 can 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 m
16. HVAC system and thermostat connection voltage is 24VAC This is a safe voltage to work with but be careful to avoid shorting the 24VAC common C and 24VAC return terminals This may blow a fuse in the HVAC system Standard HVAC System Quick Test You can perform a quick test of the HVAC system by shorting across the appropriate thermostat terminals on the HVAC thermostat connector Use a short 6 inch wire to connect across the following terminals Function Test HVAC Terminals Result Fan RtoG Fan should come on Heating R to W Heat cycle should start for heating Cooling R to Y and G Compressor and Fan should start for cooling Heat Pump System Quick Test Similarly you can test Heat Pump operation by shorting across the following terminals Heat pump operation is determined by compressor calls in conjunction with changeover O outputs You must know what your system CO type is CO with Cool typical or CO with Heat You should have configured the TZ43 for correct CO type refer to this setting Heat Pump systems have an additional O terminal Function Test HVAC Terminals Result Fan R toG Fan should come on Heating R to Y and G Compressor and Fan should start and Heating occurs Cooling R to Y and G and O Compressor and Fan should start CO valve operates and Cooling occurs DON 141 01128 03 9 22 08 Model TZ43 RCS BN O0 01652 Thermostat Wiring Diagram
17. Model 1743 ZWave Thermostat 9 INSTALLATION AND OPERATION MANUAL DCN 141 01652 03 9 22 08 IMPORTANT NOTICE DO NOT USE THIS PRODUCT FOR BUILDING FREEZE PROTECTION YOU ARE ADVISED TO INSTALL A MECHANICAL FREEZE PROTECTION DEVICE ON YOUR SYSTEM FOR THIS PURPOSE Model 743 ZWave Thermostat This manual applies to the following product revisions or later revisions up to the next manual revision release Product Part No Firmware ZWave Thermostat 001 01652 01 Document Revision History Revision Date Changes 01 7 30 08 Original release 02 8 22 08 Updated Zwave Install description 03 9 22 08 Updated Zwave command class information Product Specifications Product Model Product Thermostat Size Display Backlight Contrast Buttons LEDs Temp sensors Power HVAC System Type Compatible Multistage System Compatible Standard HVAC Systems Heat Pump Systems Heat Pump change over valve Outside temp sensor Communications DON 141 01128 03 9 22 08 TZ43 Thermostat for Heating and Cooling HVAC System control ZWave 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 2 remote 24VAC from HVAC System Standard gas electric or Heat Pump 2 stage heating 2 sta
18. Sensor menu When configured as an outside sensor the RS2 temperature reading will be displayed on the top of the thermostat screen Wire specification 2 conductors 22Ga twisted pair or Cat 3 5 wire 100ft maximum length RS2 Sensor RS2 Remote Temp Sensor Sensor wiring is not polarized DCN 141 01128 03 9 22 08 30 Power The TZ43 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 TZ43 s 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 TZ43 s RH terminal and wire the cooling systems 24VAC to the 243 RC terminal Also wire the cooling systems 24VAC Com to the TZ43 s 24VAC Com terminals Note Do not split RC RH for Heat Pump systems DCN 141 01128 03 9 22 08 31 HVAC SYSTEM CONNECTION Standard Gas Electric HVAC System Wiring TZ43 Thermostat Standard HVAC System THERMOSTAT CONNECTION 24VAC
19. The HVAC system mechanical fan state COMMAND CLASS SENSOR MULTILEVEL Returns the temperature as displayed by the TZ43 Note this temperature is the TZ43 s working temperature and includes any averaging sensors COMMAND CLASS VERSION Returns various Zwave version information COMMAND CLASS CLOCK Used to set the TZ43 s real time clock COMMAND CLASS MANUFACTURER SPECIFIC Returns Manufacture and Product information COMMAND CLASS CONFIGURATION Used to read write internal TZ43 variables The majority of the variables are accessable via the on screen menu the CONFIGURATION command class is used to remotely set the variables It is recommended that you have a thourough understanding of the variables before making any changes See variable table below COMMAND CLASS LOCK Used to implement the Display Lock locking the thermostat keys TZ43 Variable Table Variable Description Minimum Maximum Notes Number Value Value 1 System Type 0 1 0 Gas Elec 1 HeatPump 2 Fan Type 0 1 0 Gas 1 Elec 3 Change Over Type 0 1 0 w Cool 1 w Heat 4 C F Type 0 1 0 C 1 F 9 Display Lock 0 1 0 Unlocked 1 Locked 10 MOT 5 9 Minimum OFF Time 11 MRT 1 9 Minimum Run Time 12 H Delta Stage 1 On 1 8 Stage Timers 13 H Delta Stage 1 Off 0 8 14 H Delta Stage 2 On 1 8 15 H Delta Stage 2 Off 0 8 16 H Delta Stage 3 On 1 8 17
20. cooling setpoint When in AUTO mode the buttons change the last call s heating or cooling setpoint Note that the setpoints will push each other if they are adjusted to get within the minimum Heat Cool separation setting This is normally 4 degrees 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 Outside Temperature Display optional The outside temperature is displayed in the top center of the main screen if an outside temperature sensor is attached to the Thermostat Remote Sensor RS2 Requires outside sensor Model OS5 be installed and RS2 to be configured as OUT in the Installer Settings DON 141 01128 03 9 22 08 7 Thermostat Control Screen Thermostat Control Screen Buttons UP and DOWN Buttons The UP and DOWN buttons adjust the setpoint temperature ut 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 i button down will cause the setpoint to continuously change until the button is released Setpoint Range The setpoints can be set from 40 F to 106 F 5 to 37 unless limited in the Installer Settings Setpoint Push Note that you cannot lower the cooling setpoint below the heating setpoint The thermostat will push the heating setpoint lower
21. ge cooling 3 stage heating 2 compressor 1 aux 2 stage cooling Selectable change over with cool or with heat 2 wire 10K NTC thermistor type ZWave Table of Contents enu e 4 Z wave Programming and Operation essent enne 5 ocu MER 6 Thermostat Control iine edens ee eene eene eee 7 Temperature Display aca na n a den EU EEG De EGRE ED DRE EU UE NER UR HERE Ren 7 Setpoint BUET 7 7 Outside Temperature Display optional 7 Thermostat Control Screen Buttons A 8 EED BISplays genee EE Eeer 10 Main E 11 Schedules Serob ESTEE 12 User Settings Sero Tr 15 Thermostat Info SCreens D 21 Main Menu gt Installer Settings Hidden Screen 22 Installer Settings SSUMMANY J eoe ne eerte eee o Pee iet eret 25 HVAC System nre nnne tenete nennen 27 HVAC System Compatibility 27 Remote later 27 Outside Temperature Operaiton eene enne 27 HVAC System Operation and Setup nennen nennen entres 28 Standard HVAC System Types nnne snnt ss nne E 28 Heat Pump HVAC System Types 28 Remote Temperature Sensors 1 enne 30
22. he Select button 3 Press the YES button 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 Button 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 unconfigured 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 DON 141 01128 03 9 22 08 5 Operation Thermostat 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 LEDs The Thermostat has four LED s that displays status information The LEDs have dynamic on screen labels that can change with the screen being displayed Screens A unique feature of the Thermostat graphical display is the ability to have multiple display screens In addition to a main thermostat control
23. he 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 Backlite Display Backlite Timeout ON Level OFF Level Contrast Screen Navigation Buttons Return to User Settings menu Move menu selection pointer up Increment value Decrement value Move menu selection pointer down Not used dt DCN 141 01128 03 9 22 08 20 Menu Thermostat Info The Thermostat Info screen displays the current configuration of the TZ43 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 Zwave Settings Zwave Firmware version Zwave Node ID Zwave Home ID System Type Standard or Heatpump HVAC system Fan Type setting for Standard systems No Fan w heat Gas systems or Fan w heat Electric Systems OR e Changeover setting for Heat Pump systems 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 Thermostat Info TZ43 Ver 03 07 7 ZVER 01 02 2 ZNID 002 ZHID 00 00 50 12 System Type Standard Fan Type No Fan w HT JI JI jJ Screen navigation buttons Return to Main
24. he 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 Sensor Calibration Internal Remote 1 Remote 2 Screen navigation buttons Return to Main Menu Screen Move menu selection pointer gt Increase the temperature by 1 deg EE temperato gey V Move menu selection pointer down Refresh screen temperatures rrt DCN 141 01128 03 9 22 08 19 Menu User Settings Backlite Display The Backlite Display screen allows you to set the Backlite ON and OFF brightness levels 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 45 seconds If set to 0 the Backlite will always be ON If set in the range of 20 to 45 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 adjust the darkness of t
25. ight 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 on the bottom right of the schedule screen When you highlight the c the button below will become Press this button to change to the Copy Schedule Screen Schedule Screen Monday Schedule Time Heat Cool 6 00A 72 82 Day 9 00A 68 84 Eve 5 00P 74 76 Nite 10 00P 70 78 CAE Tes Screen navigation buttons Return to Main Menu Screen Increment time or temperature Scroll Back Scroll Forward Select the next Day schedule V Decrement time or temperature OR if the copy c is selected go to schedule screen 141 01128 03 9 22 08 13 Menu Schedules Heat 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 H 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
26. ight timeout period and adjust the display contrast Usage Graph Select this menu item to display a Usage Graph that will show the runtime accumulation of Heating and Cooling cycles User Settings Screen User Settings Set Clock Screen Timeout F C Mode Sensor Calibration Return to Main Menu Move menu selection pointer up Increment value Decrement value Move menu selection pointer down Select the function to be set DCN 141 01128 03 9 22 08 15 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 will take you directly to this screen to set the clock Set Clock Screen Set Clock Time Date 7 13 08 Day Thu e Tal Screen navigation buttons Cancel and return to User Settings Menu Increment selected item 4 Move back with selection box navigation arrow gt Move forward with selection box navigation arrow f Decrement selected item Set the time and return to
27. mostat has a menu tree that can be accessed by pressing the Menu button on the Thermostat screen Various configurations of the Thermostat can have different screen contents The first screen that will come up is the Main Menu screen This is a list of the other menus or functions that can be accessed Standard screens are listed below Yours may vary with different configuration or revisions Optional screens are selected in the Installer Settings screen during the system setup Schedules Screen This screen is used to view and set the programmable setback schedules of the thermostat User Settings Screen This screen is used to set the Clock Filter Service Maintenance Service Screen Timeout F C mode Sensor Calibration and Backlite Display settings Thermostat Info Screen This screen shows the firmware versions of the Thermostat and Zwave interface HVAC system type and equipment options Main Menu Menu Selection Schedules User Settings Thermostat Info Screen navigation buttons Return to Thermostat Screen Move menu selection pointer up Not used Not used Move menu selection pointer down Select menu item at pointer 141 01128 03 9 22 08 11 menu Schedules The Schedules Screen 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
28. n 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 Heat 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 The third stage of heating will be turned on when the current temperature falls 6 deg below the current setpoint and will turn off at 3 degrees below the setpoint DCN 141 01128 03 9 22 08 28 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 Heatpump Changeover Type Selection Most heat pump systems are designed to work normally in the heating mode and require a change over output for cooling output Change the C O Type in the Installer Settings System Settings Mechanical Settings menu option to match your system needs Changeover with Cooling Set C O Ty
29. nts higher that this maximum High temps are for pool spa heating applications Min Cool SP Range 6 to 110 Default 6 Sets the minimum cooling setpoint value Will not ramp or accept setpoints lower than this minimum low temps are for deg C applications Minimum Run Time Range 1 9 Minutes Default 6 Sets the minimum run time before a heating cooling cycle can turn off Sets heating cooling cycle time Prevents rapid cycling DCN 141 01128 03 9 22 08 23 Minimum Time Range 5 9 Minutes Default 6 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 0 120 minutes Default 20 Remote Sensors Submenu The TZ43 can support 2 remote sensors 10K Thermistor type Each sensor can support several Thermostat Curves the most common curves being the A Curve Type 2 and Type 3 RS1 Type Range A Curve Type 2 Type 3 Default Type 2 Selects the 10K Thermistor curve for Remote Sensor 1 If present Remote Sensor 1 will replace the internal sensor of the TZ43 and become the Primary temperature sensor
30. ode This mode can be set on or off in the thermostat Users Settings screen Other screens Other standard screens are selected by the Menu button and include Schedules User Settings and Thermostat Info Other screens such as the SmartVent ventilation control screen may be present and selectable from the menu button depending on options included or selected in the installation setup process 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 45 second delay These are selectable in the User Settings menu DON 141 01128 03 9 22 08 4 Z wave Programming and Operation Z Wave controllers from various manufacturers may support the Z Wave Thermostat General V2 Device class used by the RCS TZ43 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 Setyour primary controller to Include mode to add the thermostat as a node on your network see your controller s user manual for detailed instructions 2 Navigate to the Z Wave Install Button screen This screen is located in the Installer Screen To enter this screen go to the main menu screen and press and hold the two inner buttons for 3 seconds until the Installer Settings screen appears Scroll down until the Z Wave Install Btn menu item is selected press t
31. pe to w Cool This is the default setting Changeover with Heating Set C O Type to w Heat Note during Heat Pump operation the changeover relay once engaged will stay on until the opposite HVAC call occurs Check your HVAC system requirements for correct settings Minimum Run Time MRT The TZ43 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 TZ43 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 0112
32. rent 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 maintain a separation between them with a default setting of 4 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 i
33. screen menus and other control screens for special functions are provided This makes an intuitive and easy to use user interface It allows the many functions of the Thermostat to be easily navigated The main screen is the Thermostat Control Screen From this screen you can access a menu screen that will list other control screens or setup screens Thermostat Control Screen This is the default main screen and the only screen needed for basic thermostat operation temperature setting and heat cool mode selection All other screens will automatically timeout and return this screen after 120 seconds of no activity Minimized Thermostat Screen The main thermostat screen will go to a minimized screen after a 30 second timeout period This presents a simple uncluttered display of the current room temperature and outside temperature if an OT sensor is attached This minimized screen can be disabled if desired Pressing any button when the minimized screen is displayed will causes the Thermostat Control screen to be restored and displayed Menu Selection Screen Pressing the Menu button on the Thermostat Control Screen will go to the Menu Selection screen This screen presents a list of the other functions or setup screens that can be selected Schedules Screen This screen is used to view and edit the time based setback schedules for the thermostat User Settings Screen This screen is a submenu of user settings for the initial set
34. t Control Screen Mode Button Operation Off Mode System is off No heating or cooling will come on If system was on it will turn off Heat Mode Only heating will occur Cool 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 when the temperature exceeds the appropriate setpoints EHEAT Mode Emergency Heat mode is only displayed when Heat Pump HVAC System type is selected When there is a compressor failure with the heat pump system setting the mode to EHEAT will allow the supplemental heat to come on whenever there is a heat call to provide heating It also disables the compressor outputs to prevent further damage to the system FAN Button The FAN button controls the HVAC system s MANUAL fan The current manual fan mode is displayed above the button Normally this button is in the Auto mode the system fan is automatically controlled by HVAC system Pressing the FAN button once will turn the manual fan operation ON Pressing it again will turn the manual fan OFF and return to the AUTO mode under control of the HVAC system zi AUTO Fan Button FAN Auto On 5 If the Fan Cycler feature is enabled the additional fan mode Cycle will be available RUN HOLD Button The RUN HOLD button controls the automatic SCHEDULE operation In the HOLD mode the current temperature is maintained
35. t 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 4 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 6 Sets the delta from setpoint that stage 3 heating starts Heating Delta Stage 3 OFF Range 0 to 8 degrees Default 3 Sets the delta from setpoint that stage 1 heating stops Stage 3 turns off at setpoint Delta Stage 3 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 ON Range 1 to 8 degrees Default 4 Sets the delta from setpoint that stage 2 cooling starts Stage 2 turns off at setpoint 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 1 Max Heat SP Range 5 to 109 Default 109 Sets the maximum heating setpoint value Will not ramp or accept setpoi
36. tion In or Out In Filter Interval 300 Maint Interval 3000 H C Delta 3 15 4 Heat Delta Stage 1 On 1 8 1 Heat Delta Stage 1 Off 0 8 0 Heat Delta Stage 2 On 1 8 4 Heat Delta Stage 2 Off 0 8 0 Heat Delta Stage 3 On 1 8 6 Heat Delta Stage 2 Off 0 8 3 Cool Delta Stage 1 On 1 8 1 Cool Delta Stage 1 Off 0 8 0 Cool Delta Stage 2 On 1 8 3 Cool Delta Stage 2 Off 0 8 0 Fan Cycler ON time 0 120 0 0 Fan Cycler OFF Fan Cycler Off Time 0 120 20 DON 141 01128 03 9 22 08 25 Installer Settings Screen Installer Settings p gt Display Lock Service Mode System Settings Max Heat SP Screen navigation buttons Return to Main Menu screen Move menu selection pointer Increase by 1 or change from N to Y Dectegse Oy TOI Change Om sto m Move menu selection pointer down Select Select menu item to go to a submenu 141 01128 03 9 22 08 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 HVAC systems supports changeover val
37. up of the thermostat You can set the clock minimized screen timeout Fahrenheit or Centigrade selection sensor calibration and display settings Thermostat Info Screen This is a quick reference list of the thermostat firmware versions and setup Each Thermostat screen is described in more detail in the following sections DON 141 01128 03 9 22 08 6 Thermostat Control Screen 10 25 AM Outside 60 Sys Economy 76H in 74 No Msg MENU MODE FAN RUN The thermostat control screen is the default display screen and is the screen that is normally displayed on the Thermostat It can be set to switch to a minimized screen of only room temperature after a few seconds of display The User Settings menu allows selecting the screen timeout for a minimized screen From the minimized screen display pressing ANY button will bring the main thermostat screen back Temperature Display The Thermostat will normally display the current temperature from the internal temperature sensor or a remote sensor The sensors have an accuracy of 1 F 5 The Thermostat temperature range is 63 F to 191 F NOTE f averaging remote sensors are attached the display will Show the average temperature of all attached averaging sensors Setpoint Display The heating and cooling setpoints are displayed next to the Setpoint Up Down buttons In the HEAT mode the Up Down buttons change the heat setpoint In the COOL mode they change the
38. ve 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 heatstrip and 2 stages of cooling Remote Communications The TZ43 thermostats have a Zwave communications module for communicating to control systems with Zwave capability Outside Temperature Operation The thermostat can use and display outside temperature information from a sensor attached to the RS2 Remote Sensor connection The outside temperature will be displayed on the Thermostat DCN 141 01128 03 9 22 08 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 cur
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