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Residential S1-THSU301-S model Digital Thermostat Optional accessories available, including Wi-Fi Owner’s Manual & Installation Instructions...
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“OFF” prior to changing settings in setup or restoring Factory Defaults. This Source 1 thermostat has the ability to receive updates to its firmware. Periodically firmware updates are released by the manufacturer to add features and/or performance enhancements. This manual was produced reflecting the most current firmware/feature set at the time of publication, firmware rev.
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Glossary of Terms Auto-Changeover: A mode in which the thermostat will turn on the heating or cooling based on room temperature demand. Cool Setpoint: The warmest temperature that the space should rise to before cooling is turned on (without regard to deadband). Deadband: The number of degrees the thermostat will wait, once a setpoint has been reached, before energizing heating or cooling.
Table of Contents Table of Contents GET TO KNOW YOUR THERMOSTAT Get to Know Your Thermostat ............1 Quick Start ..................6 INSTALLATION INSTRUCTIONS Installation Instructions ..............8 The Thermostat Backplate ............10 Sample Wiring Diagrams .............. 12 Test Operation ................15 USER SETUP Backlight Operation ..............
Get To Know Your Thermostat Optional Wireless Module Backlit, Scrolling Display Backlit LCD Display Mode Button Heat or Cool Demand Indicator Red = Heat, Green = Cool Backlit Cooler & Warmer Buttons Setup Buttons Behind Door...
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Get To Know Your Thermostat Setup Buttons...
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Get To Know Your Thermostat Display Features Program ONOFF 2nd3rd 18:88 Stage Setup Step Day Night Morning Evening Fan On Outdoor Program icon—Indicates that Time Period Programming is running or is enabled to be set. Clock with Day of the Week—Indicates the current time and day. This clock is also used to program the time period schedules.
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Get To Know Your Thermostat Display Features Program ONOFF 2nd3rd 18:88 Stage Setup Step Day Night Morning Evening Fan On Outdoor 2nd Stage icon Indicates when 2nd stage heating has been engaged. Setup Step icon Indicates the step number when programming the thermostat Morning, Day, Evening &...
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Get to know your thermostat Display Features Program ONOFF 2nd3rd 18:88 Stage Setup Step Day Night Morning Evening Fan On Outdoor Fan On icon – Indicates constant, continuous fan operation. When Fan On is not lit - indicates the fan will only operate when necessary to heat or to cool.
Quick Start During Setup and Programming Press the WARMER or COOLER buttons to modify the selection. Press the MODE button to advance and confirm through the setup steps. Setting the Clock and Day* *Not available when wi-fi module is present. Press the SET CLOCK button.
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Quick Start Selecting your desired temperature AUTO-CHANGEOVER MODE - Pressing the WARMER or COOLER buttons in AUTO mode will adjust both the heat and cool setpoints simultaneously. To adjust heat and cool setpoints individually, choose HEAT mode to adjust the heat setpoint and COOL mode to adjust the cool setpoint, then return to AUTO mode.
Installation Instructions Remove and Replace the old thermostat To install the thermostat properly, please follow these step by step instructions. If you are unsure about any of these steps, call a qualified technician for assistance. • Assemble tools: Flat blade screwdriver, wire cutters and wire strippers.
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Installation Instructions Wire Connections If the terminal designations on your old thermostat do not match those refer to the chart below or the wiring on the new thermostat, diagrams that follow. Wire from the Install on the old thermostat Function new thermostat terminal marked connector marked...
Installation Instructions The Source 1 Thermostat Backplate To remove the thermostat backplate: Gently separate the display from the base by pulling first from one side, then the other until the two pieces unsnap. A small screwdriver may be used, very carefully, to start seperating the two pieces.
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Installation Instructions Check Dip Switch Ensure which switch is correct for your system. Dip switches are located on the back of the thermostat. ELEC RV=O RV=B GAS/ELEC HEATPUMP 1. When GAS/EL or HP is set for GAS/EL: This switch (GAS or ELEC) controls how the ELEC thermostat will control the Fan (G) terminal in heating mode.
Installation Instructions Sample Wiring Diagrams Conventional Heating and Cooling Systems 3 Wire, Heat Only 4 Wire, Cool Only Residential & Commercial 1 Stage Heating Residential & Commercial 1 Stage Cooling. with no Fan. 24VAC Power 24VAC Power 24VAC Common 24VAC Common 1st Stage Cool W1/O/B 1st Stage Heat...
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Installation Instructions Sample Wiring Diagrams Heat Pump Systems 5 Wire, 1 Stage Cooling, 1 Stage Heat 6 Wire, 1 Stage Cooling, 2 Stage Heat Residential & Commercial Heat Pump with Residential & Commercial Heat Pump with O Reversing Valve O Reversing Valve 24VAC Power 24VAC Power 24VAC Common...
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Installation Instructions Sample Wiring Diagrams Dry Contact W1/O/B DEHUM Accessory such as Time clock or door switch...
Installation Instructions Test Operation The Source 1 thermostat has a diagnostic feature that enables testing of all outputs. This feature is contained in Technician Setup. To enter Technician Setup, press and hold the SETUP button for 10 seconds until all the icons appear. Follow the next steps to view settings and test equipment.
User Setup: Backlight Operation How to Change Settings in the Setup Screens To enter Advanced Setup, press the SETUP button, then press MODE. Use the WARMER or COOLER buttons to adjust the value of your selection. Press MODE to advance to the next setup step. Press SETUP again to leave the setup screens. Setup Backlight (setup steps 3-8)
User Setup: Scrolling Screen and Display Options Scrolling Display Method (Setup Step 16) This option allows the user to choose how the scrolling text is displayed. Options are: Scrolling Non-Scrolling Scroll Letters Slow Whole Words Slow Scroll Letters Fast Whole Words Fast Scroll Words Slow Words Centered Slow Scroll Words Fast...
User Setup Vacation & Away Settings VACATION The Vacation feature allows the thermostat to use temporary, energy saving setpoints without having to change regular programming. The HOME/AWAY feature allows for a one button press to bring HOME | AWAY in your stored unoccupied vacation settings. A subsequent press of the HOME/AWAY button restores the last used comfort settings.
User Setup - Wireless Modules Wireless Module Wireless Module The ACCESSORY STATUS button allows the user to view the status of wired and wireless accessories. For many of the wireless devices this status includes: Battery Level, Signal Strength, and Last Time Updated. If there is an optional wireless module installed, the ACCESSORY SETUP button allows the user to link or connect...
User Setup - Service Filter These setup steps allow the user to monitor equipment runtimes and program service alerts. Service alerts are displayed in the scrolling marquee. Runtime hours or days appear in the clock display. Setup Step OUTDOOR˚ Press and hold FAN to clear FAN ON/AUTO service alert messages from the scrolling marquee.
User Setup - Runtimes To view, set, or reset System Runtimes, press the SETUP button, then press MODE. Press MODE to advance to the desired setup step. Use the WARMER or COOLER buttons to adjust the value of your selection. Press SETUP again to leave the setup screens.
User Setup - Time Period Programming Programming a Daily Schedule* *not available when wi-fi module is present To enter Time Period Programming screens. Press and hold PROGRAM until the scrolling prompt appears. OFF - Time Period Program is off. RUN - Time Period Program is running. HOLD TO SET - Press and hold PROGRAM to make Time Period Programming changes.
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User Setup - Time Period Programming Programming a Daily Schedule (cont.) This thermostat features four programmable time periods per 24 hour day: Morning, Day, Evening, and Night. The start time for each time period is adjustable. The stop time for each time period is the start time for the next period.
Installer Setup How to Change Settings in the Setup Screens To enter Advanced Setup, press the SETUP button, then press MODE. Use the WARMER or COOLER buttons to adjust the value of your selection. Press MODE to advance to the next setup step. Press SETUP again to leave the setup screens.
Installer Setup Cycles Per Hour (setup step 17) The Cycles Per Hour setting may limit the number of times per hour your HVAC unit may energize. For example, at a setting of 6 cycles per hour the HVAC unit will only be allowed to energize once every 10 minutes.
Installer Setup Deadband Settings The Deadband is the number of degrees or minutes that the thermostat waits before it initiates the stages of heating or cooling. 1st Stage Deadband (Setup Step 23) - Specifies the minimum temperature difference between the room temperature and the desired setpoint before the first stage of heating or cooling is allowed to turn on.
Installer Setup Dry Contact Operation Dry Contact Polarity (setup step 25) Closed (Normally Closed) - The dry Open (Normally Open) - The dry contact is closed until the connected contact is open until the connected device opens the circuit. device closes the circuit. ‘Idle’...
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Installer Setup - Automated Demand Response Overview Source 1 thermostats support the handling of specific signals from the utility provider. The utility generated signals carry pricing information and/or setback actions that alter the comfort settings of the thermostat in order to reduce energy usage on demand. This is known as Automated Demand Response or ADR for short.
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Installer Setup - Automated Demand Response The Demand Response configuration page, shown below, is where the thermostat is configured to respond to the energy provider’s signals. It also sets operational parameters for the thermostat. The left column of the ADR configuration page allows or prevents access by the utility.
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Installer Setup - Automated Demand Response Selecting the Overview tab of the ADR page will cause a summary of ADR events to be displayed.
Installer Setup - Automated Demand Response ADR (setup step 29) Controls whether you want the thermostat to possibly respond to signals from the utility provider. Select ON to allow this and to have steps 30-36 appear. ADR Action (setup step 30) Allows the user to determine what action is taken when an ADR event is received.
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Installer Setup - Automated Demand Response Cool Setpoint Offset (setup step 35) Heat Setpoint Offset (setup step 36) Specifies how much the current setpoints in effect prior to an event will be altered during an event when the ADR ACTION is set to OBSERVE SETPOINT OFFSETS.
Installer Setup Locking/Unlocking the Keypad To prevent unauthorized use of the thermostat, the front panel buttons may be disabled. To disable, or ‘lock’ the keypad, press and hold the MODE button. While holding the MODE button, press the WARMER and COOLER buttons together.
Installer Setup Resetting the Thermostat to the Factory Default Settings (for default values see page 36 & 37) If, for any reason, you desire to return all the stored settings back to the factory default settings, follow the instructions below. WARNING: This will reset all Time Period and Advanced Programming to the default settings.
Technician Setup To enter Technician Setup, press and hold the SETUP button for 10 seconds. After all the icons appear, press MODE. The version number of the thermostat will appear in the scrolling text. Press MODE to advance to the next step. Use the WARMER or COOLER buttons to adjust the value of your selection.
Troubleshooting • SYMPTOM: The air conditioning does not attempt to turn on. CAUSE: The compressor timer lockout may prevent the air conditioner from turning on for a period of time. REMEDY: Consult the Owner’s Manual in the Installer Setup section to defeat the Cycles Per Hour (page 25).
Warranty One-Year Warranty - This Product is warranted to be free from defects in material and workmanship. If it appears within one year from the date of original installation, whether or not actual use begins on that date, that the product does not meet this warranty, a new or remanufactured part, at the manufacturer’s sole option to replace any defective part, will be provided without charge for the part itself provided the defective part is returned to the distributor through a qualified servicing dealer.
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