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AW000245

-DRAFT

Tantalus ST-1480 Smart Thermostat

Operating and
Installation Manual

© All Rights Reserved

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Summary of Contents for ST-1480

Page 1: ...AW000245 DRAFT Tantalus ST 1480 Smart Thermostat Operating and Installation Manual All Rights Reserved ...

Page 2: ...Page 2 ...

Page 3: ...ode programming of your yearly Heating and Cooling needs Easy adjustment of temperature and schedule EnergyStar compliant presets to help reduce heating and cooling costs Wirelessly communicates with your utility Notifies you and automatically responds to utility demand response programs Single button Conserve Mode operation Large easy to read backlit display Silent operation Protection against in...

Page 4: ...TROLS 8 HOME SCREEN 9 TITLE BAR 10 HELP BUTTON 10 SETTING THE TIME 11 DEFAULT SCHEDULE 12 TEMPORARY HOLD 13 HEATING AND COOLING MODES 14 FAN MODES 15 TEMPERATURE SETTINGS 16 SCHEDULE 18 PERMANENT TIMED AND VACATION HOLDS 19 TEMPERATURE UNITS AND CALIBRATION 21 SERVICE INFORMATION 22 USER OPTIONS 23 LANGUAGES 23 ...

Page 5: ...D MAINTENANCE 30 MOUNTING THE THERMOSTAT 30 MOUNTING THE REMOTE SENSORS 30 CLEANING THE THERMOSTAT 30 REMOVING THERMOSTAT FRONT HOUSING FROM BACKPLATE 31 REPLACING THE BATTERY 31 WIRING CONFIGURATION 32 SETUP MENU OPTIONS 34 PASSWORD 34 SETPOINT RANGE 35 EQUIPMENT TYPE 35 EQUIPMENT SETTINGS 36 CONVENTIONAL SYSTEMS 36 HEAT PUMP SYSTEMS 37 CONTROL OPTIONS 38 ...

Page 6: ...Page 6 RESET 39 CONVENTIONAL SYSTEM TEST 40 HEAT PUMP SYSTEM TEST 41 PRODUCT CONFORMITY 42 NOTES 43 ...

Page 7: ... temperatures the schedules and remaining parameters of the thermostat configuration Conservation Mode When set in this mode by either you or through a remote request from your utility the scheduled SETPOINT values are modified to save energy you cannot modify any settings that may affect the objective temperatures or the HVAC equipment operation ...

Page 8: ...IGHT TAB buttons appears on the bottom of the display screen Use the SCROLL buttons to move through the menu items and options and to change highlighted values Press the SELECT v button to select or accept highlighted menu items You can always go back or cancel prior to saving changes ...

Page 9: ...een The Home Screen displays current temperature and operation data To view this screen when the backlight is off just press any of the buttons Icons such as the heat or fan are animated when the equipment is running ...

Page 10: ...r means Link OFF means Link ON The Title Bar also displays messages sent through the communications link to you by your utility e g the Electricity Rate HELP button The HELP button provides you with information on how to navigate through the individual menu screens It will help you quickly change settings without referring to this user manual however it does not replace it so please keep this manu...

Page 11: ...to select the TIME menu Press SELECT to enter the TIME menu Use the SCROLL buttons to select between the ADJUST DATE TIME and the CLOCK FORMAT menus To change between 12 and 24 hour clock formats press SELECT on the CLOCK FORMAT menu item The setting will be underlined You can change it using the SCROLL buttons and then pressing SELECT To adjust the date and time press SELECT on the ADJUST DAY TIM...

Page 12: ...e time required to reach a desired temperature prior to the start of the SETPOINT time therefore you only need to set the desired time for the SETPOINT temperature SCHEDULE Mon to Fri Sat Sun SETPOINT SETPOINT START TIMES NAME HEAT COOL START TIMES NAME HEAT COOL 6 00 am Wake 70 F 21 C 78 F 26 C 8 00 am Leave 62 F 17 C 85 F 29 C 8 00 am Wake 70 F 21 C 78 F 26 C 6 00 pm Return 70 F 21 C 78 F 26 C 1...

Page 13: ...SCROLL buttons to highlight the operating target SETPOINT HEAT or COOL which will be underlined Press the SELECT button to toggle between the HEAT and COOL temperatures Set the desired temperature using the SCROLL buttons Press the LEFT TAB to ENGAGE HOLD or RIGHT TAB to CANCEL and return to the normal Home Screen When TEMPORARY HOLD is engaged the screen will be as shown below To cancel a HOLD pr...

Page 14: ...e operating mode AUTO The thermostat automatically selects heating or cooling depending on the indoor temperature HEAT The thermostat controls only the heating system COOL The thermostat controls only the cooling system OFF Heating and cooling systems are off EMERG Note only for heat pumps with auxiliary heat The thermostat only controls the Emergency Auxiliary heat which leaves the heat pump s co...

Page 15: ... SCROLL through the operating modes to get to the fan modes then press SELECT to engage the desired fan mode AUTO The fan runs only when the heating cooling or emergency systems are on For conventional systems with the option FAN ON IN HEAT set to NO the fan is not controlled by the thermostat but by the furnace ON The fan runs continuously ...

Page 16: ...age the HEAT mode heating your dwelling up to 70 F throughout the winter In the spring when temperatures rise again the thermostat will change back to COOL mode The SETPOINT s HEAT and COOL temperatures can be changedusing the SETPOINTS screen Choose SETPOINTS from the Main Menu to view this screen To change the HEAT and COOL temperature settings SCROLL to the SETPOINT you want to change and press...

Page 17: ...ued To change the name of a SETPOINT press EDIT NAME and change the SETPOINT s name by using the SCROLL and SELECT buttons Use SELECT to move the cursor to the next position and SCROLL to find the desired letter or blank empty character ...

Page 18: ...GRAM window displays the SETPOINT associated with the start time on the right Adjust the start time by pressing SELECT and SCROLLING the time Press SELECT to movewithin the PROGRAM wi ndow Here the SETPOINT can be SCROLLED to choose the name of a different SETPOINT Press SELECT to return to the start times on the right You can have up to 6 scheduled start times To add a start time SCROLL to a blan...

Page 19: ... from the main Menu then select the HOLD TYPE press SELECT then SCROLL to the desired HOLD TYPE and press SELECT again Permanent HOLD Using the arrow keys change the HOLDTYPE to PERMANENT and press the SELECT key SCROLL to the line above HOLD TYPE and press the SELECT key again scroll to choose the desired SETPOINT NAME Press SAVE CHANGES to accept the new settings and initiate the HOLD To cancel ...

Page 20: ...Press SAVE CHANGES to accept the new settings and initiate the HOLD To cancel the HOLD return to the HOLD menu and press CANCEL HOLD Vacation HOLD Choose the HOLD UNTIL date in VACATION HOLD You can alsochoose the SETPOINT to HOLD Press SAVECHANGES to accept the new settings and initiate the HOLD To cancel the HOLD return to the HOLD menu and press CANCEL HOLD ...

Page 21: ...is off slightly then you can easily calibrate the thermostat s display temperature by up to 5 4 F 3 C using these steps SELECT TEMPERATURE from the Main Menu Change the UNITS by pressing SELECT on the UNITS line then SCROLL between FAHRENHEIT F and CELSIUS C To calibrate the thermostat select the OFFSET line Press SELECT then SCROLL to change the offset Press SAVE CHANGES to accept the new setting...

Page 22: ...thermostat for future reference Choose SERVICE INFO from the main Menu Press EDIT NAME and enter the name and contact information using the SCROLL and SELECT buttons After pressing SAVE CHANGES scroll to the next line if you need to enter additional information then follow the procedure just described ...

Page 23: ...erlined Press SAVE CHANGES to save Schedule There are three choices for the weekly schedule To change between the three scheduling options SELECT the SCHEDULE line in the USER OPTIONS menu and SCROLL between these three choices 5 2 DAYS Mon Fri schedule is the same Sat Sun schedule is the same 7 DAYS Every day of the week has an individual schedule 5 1 1 DAYS Mon Fri schedule is the same Sat has a...

Page 24: ...GE FILTER reminder alarmappears You can clear the alarm by touching CLEAR ALARM In order to re enable the CHANGE FILTER reminder set the desired period and touch SAVE CHANGES Power Outages In the event of a power failure the thermostat will retain information for proper operation of the heating and cooling equipment as well as maintaining the time It will not display information on the display scr...

Page 25: ...stat allows either you or your utility to modify scheduled and HOLDSETPOINTs to reduce energy consumption There are two Conservation Modes User Conserve and Utility Conserve These controls are active when in the Conservation Mode CONSERVEStatus Light CONSERVEButton HOME Led ...

Page 26: ...xed value If a temporary HOLDor the current scheduled SETPOINT expires the incremental temperature change is applied to the next scheduled SETPOINT Note that you will not be able to change any scheduled or HOLDSETPOINTs while you are in the User Conserve Mode you will have to exit this mode before you can make those changes At this point the thermostat will set back the current SETPOINT HOLD or sc...

Page 27: ...the User Conserve Mode press the Conserve Button again and the thermostat will go back to its regular schedule or applicable HOLD The Green Conserve Status light will turn OFF When the thermostat exits the User Conserve Mode it enters the Normal Operation Mode w here the SETPOINTs are as programmed by the Schedule or HOLDand you are able again to modify any configuration parameter of the thermosta...

Page 28: ...the heating system If a temporary HOLDor the current scheduled SETPOINT expires the incremental temperature change is applied to the next scheduled SETPOINT At this point the thermostat will set back the current SETPOINT HOLD or scheduled SETPOINT by a fixed value of 2 C to conserve energy The SETPOINT s name at the Home Screen of the thermostat will be replaced by a label showing Conserve When en...

Page 29: ...The Utility Conserve Mode ends when your utility sends a signal to the thermostat to end the Utility Conserve Mode or you opt out of the Utility Conserve Mode by pushing the Conserve Button In the case you opt out of the Utility Conserve Mode you will not be able to go back to it The only Conserve Mode you will be able to enter is the User Conserve Mode When the thermostat exits the Utility Conser...

Page 30: ... pipes or chimneys and unconditioned areas such as outside walls behind the thermostat The 2 wallplate anchors should be spaced 3 5 inches 90 mm apart in a vertical direction Pull wires through the backplate and connect to the appropriate terminals as defined in the Wiring Configuration Mounting the Remote Sensors Outdoor sensors should be mounted in shaded locations out of direct sunlight The the...

Page 31: ...ottom of the front housing forward and remove Replacing the Battery A LOW BATTERY WARNING will appear when the battery falls below 10 of its rated capacity This procedure does not lose the thermostat settings however time settings will require re programming Replace with a CR 2032 battery Warning Do not use metallic tools when removing battery or backplate this may damage the thermostat ...

Page 32: ...Page 32 Wiring Configuration See Wiring Table on the next page ...

Page 33: ...eat W1 10 4 RS GND Sensor Ground Fan G 11 5 FILTER Filter 1st Stage Cool Y1 12 6 2nd Stage Cool Y2 13 7 2nd Stage Heat W2 14 1 Common GND C 8 2 FAULT Heat Pump Fault Power 24VAC R 9 3 RS OUT Outdoor Sensor Auxiliary Heat E 10 4 RS GND Sensor Ground Fan G 11 5 FILTER Filter 1st Stage Heat Pump Y1 12 6 2nd Stage Heat Pump Y2 13 7 Changeover Valve O B 14 Conventional Systems CONV Heat Pump Systems HP...

Page 34: ... after 20 minutes of the last button press and force you to re enter a password The default INSTALLER password is INST The INSTALLER password limits access to critical thermostat settings which include Password Equipment Settings SETPOINT Range Control Equipment Type Reset The passwords can be changed in the PASSWORD menu SCROLL to change either USER or INSTALLER password SCROLL through the letter...

Page 35: ... The thermostat must be configured correctly to match the equipment type The number of cooling and heating stages must be defined in the Conventional or Heat Pump setting EQUIPMENT TYPE DEFAULT OPTION CONVENTIONAL OF COOL STAGES 0 0 2 OF HEAT STAGES 1 0 2 HEAT PUMP OF COOL STAGES 1 1 2 OF HEAT STAGES 1 1 3 REV VALVE ON IN COOL ON IN HEAT For Heat Pumps defining one more heat stage than cool stages...

Page 36: ...FF TIME 3 MIN 1 6 MIN Minimum cycle time for the furnace air conditioner FAN ON IN HEAT YES NO this option only applies to the furnace The fan turns on when the thermostat sends the fan on signal If the Fan Mode is AUTO the thermostat will turn the fan on whenever the furnace is turned on The furnace waits until enough heat is built up before turning on the plenum fan The furnace controls the fan ...

Page 37: ...he same time Does not allow Heat Pump and Auxiliary Heat to be on at the same time add on configuration BALANCE POINTS HIGH 122 F 50 C 38 122 F 39 50 C The High Balance Point defines the outdoor temperature above which the Auxiliary Heater is disabled An external temperature sensor must be installed for the Balance Points to operate LOW 40 F 40 C 40 120 F 40 49 C The Low Balance Point defines the ...

Page 38: ... a desired temperature The algorithm determines the time required to reach the temperature and engages the equipment prior to the next Scheduled SETPOINT in order to reach the desired temperature at the appropriate time The temperature may not be reached if the ANTICIPATION TIME is less than the time required to heat or cool to the desired temperature MAX RECOVERY TIME 90 MIN 0 180 MIN The maximum...

Page 39: ...0ºF 78ºF SETPOINT 7 62ºF 85ºF SETPOINTS SETPOINT 8 62ºF 85ºF LANGUAGE ENGLISH USER OPTIONS CHANGE FILTER REMINDER 0 MONTH S TEMPERATURE UNITS FAHRENHEIT ºF USER INSTALLER PASSWORD PRESET 1234 OFF INST MAX MIN HEAT 93ºF 41ºF SETPOINT RANGE COOL 95ºF 43ºF OF COOL STAGES 1 EQUIPMENT TYPE CONVENTIONAL OF HEAT STAGES 1 MIN ON OFF TIME 3 MIN EQUIPMENT SETTINGS FAN ON IN HEAT YES CHANGE HYSTERESIS 2ºF AN...

Page 40: ...SELECT ENGAGE HOLD First stage cooling should engage 2ND stage cooling Remain in COOL mode Return to the Temporary HOLD function and SELECT ENGAGE HOLD again Second stage cooling should engage 1ST stage heating Change mode to HEAT and modify the temperature by 5 F 3 C and ENGAGEHOLD First stage heating should engage 2ND stage heating Remain in HEAT mode and return to the Temporary HOLD function an...

Page 41: ...function and SELECT ENGAGE again Second stage cooling should engage 1ST stage heating Mode HEAT Modify the SETPOINT by at least 5 F 3 C above room temperature and SELECT ENGAGE HOLD First stage heating should engage 2ND stage heating Remain in HEAT mode Return to the Temporary HOLD function and SELECT ENGAGE HOLD again Second stage heating should engage Heating using Auxiliary Heat Remain in HEAT ...

Page 42: ...ccordance with the manufacturer s instructions complies with the requirements of IEC 60730 1 for EMC emissions and immunity This equipment is RoHS compliant The battery in this thermostat may contain perchlorate material special handling may be necessary www dtsc ca gov hazardouswaste perchlorate Changes or modifications not expressly approved by the party responsible for compliance could void the...

Page 43: ...Page 43 Notes ...

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