Tantalus ST-1480 Specification sheet

AW000245
-
DRAFT
Tantalus ST-1480 Smart Thermostat
Operating and
Installation Manual
© All Rights Reserved

Page
2

Page
3
Operating and
Installation Manual
Congratulations on the purchase of your new thermostat. It has been designed for easy
programming to save you on energy costs and allow a comfortable living environment.
Features:
•Auto Mode 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 installation short circuits

Page
4
Table of Contents
OPERATING THE THERMOSTAT...........................................................................7
WORKING MODES..............................................................................................................7
NORMAL OPERATING MODE............................................................................................8
NAVIGATING THE CONTROLS ..........................................................................................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
USEROPTIONS ................................................................................................................23
LANGUAGES .................................................................................................................23

Page
5
SCHEDULE....................................................................................................................23
CHANGE FILTER REMINDER.......................................................................................24
POWER OUTAGES ...........................................................................................................24
THERMOSTAT CONSERVATION MODE.........................................................................25
USER CONSERVE MODE.............................................................................................26
UTILITY CONSERVE MODE.........................................................................................28
INSTALLATION AND 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
RESET...............................................................................................................................39
CONVENTIONAL SYSTEM TEST .....................................................................................40
HEAT-PUMP SYSTEM TEST............................................................................................41
PRODUCT CONFORMITY.................................................................................................42
NOTES...............................................................................................................................43

Page
7
OPERATING THE THERMOSTAT
Working Modes
The thermostat has two working modes:
•Normal Operating Mode: In this mode you can program the SETPOINT 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 saveenergy;you
cannot modify any settings that may affect the objective temperatures or the HVAC
equipment operation.

Page
8
NORMAL OPERATING MODE
Navigating the Controls
The function of the LEFT and RIGHT 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
Home Screen
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
Title Bar
The current time isdisplayed in the upper right corner of the Title Bar while in the upper left corner
there is an icon showing the communications link status between the thermostat and the utility
meter:
means Link OFF, means Link ON,
The Title Bar also displays messages sent through the communications link to you byyour utility
(e.g., the Electricity Rate).
HELP button
The HELP button providesyouwith information on how to navigate through the individual menu
screens. Itwill help you quickly change settings without referring to this user manual; however, it
does not replace it so please keep this manual forfuture reference.
??