Braeburn SOLO ST920WF Installer Manual
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Braeburn SOLO ST920WF Installer Manual

Braeburn SOLO ST920WF Installer Manual

Smart wi-fi thermostats
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Installer Manual
Smart Wi-Fi Thermostats
ST920WF Up to 3 Heat / 2 Cool Heat Pump
ST921WF
1 Specifications
4 Mobile Setup
Warning
For installation by experienced service technicians only.
Caution
Possible electric shock or damage to equipment can occur.
Disconnect power before beginning installation.
This thermostat requires 24 Volt AC Power.
For use only as described in this manual. Any other use will void warranty.
This manual is for Installer use only.
1
SPECIFICATIONS
This thermostat is compatible with:
• Single stage conventional and heat pump systems
• Single stage heat pumps with auxiliary heat
• Heat pump systems with 2 compressors and auxiliary heat (ST920WF)
• Conventional systems up to 2 stages of heat and 2 stages of cool (ST920WF)
• Heating only systems
• Cooling only systems
Electrical and Control Specifications
• Electrical Rating: 24 Volt AC
• 1 amp maximum load per terminal
• AC Power: 18 – 30 Volts AC
• Control Range: 50° to 90° F (10° to 32° C)
• Temperature Accuracy: +/- 1.5° F (+/- 1.0° C)
Up to 2 Heat / 2 Cool Conventional
Up to 2 Heat / 1 Cool Heat Pump
2 Heat / 1 Cool Conventional
1 Heat / 2 Cool Conventional
Model number is located on back of thermostat.
2 Installation
5 Manual Setup
®
3 Quick Reference
6 System Testing
Terminations
ST920WF: Rc, Rh, W1/OB, W2/AX, Y1, Y2, G, L, C
ST921WF: Rc, Rh, W1/OB, Y1, * , G, L, C
TM
ST920WF-100-01

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Summary of Contents for Braeburn SOLO ST920WF

  • Page 1 ® Installer Manual Smart Wi-Fi Thermostats ST920WF Up to 3 Heat / 2 Cool Heat Pump Up to 2 Heat / 2 Cool Conventional ST921WF Up to 2 Heat / 1 Cool Heat Pump 2 Heat / 1 Cool Conventional 1 Heat / 2 Cool Conventional Model number is located on back of thermostat.

  • Page 2: Installation

    2 INSTALLATION Warning Disconnect power before beginning installation. Thermostat Location Install the thermostat approximately 5 feet (1.5m) above the floor in an area that has a good amount of air circulation and maintains an average room temperature. Avoid installation in locations where the thermostat can be affected by drafts, dead air spots, hot or cold air ducts, sunlight, appliances, concealed pipes, chimneys and outside walls.

  • Page 3: Terminal Description

    2 INSTALLATION Attach Wiring - To insert a wire into a terminal, flip up the locking tab and slide the wire into the terminal directly above the corresponding label. Insert each wire as required for the desired application. Once each wire is inserted, flip the tab down to lock it in position.
  • Page 4 2 INSTALLATION Heat Pump Systems Typical Wiring Configurations for HVAC: HT PUMP or D FUEL MODEL Both ST921WF ST920WF Heat Pump Stages 1 Heat Pump 1 Heat Pump 1 Heat Pump 1 Heat Pump 2 Heat Pump 2 Heat Pump Auxiliary Heating Stages 0 Auxiliary 0 Auxiliary...

  • Page 5: Quick Reference

    3 QUICK REFERENCE Display Characters Alphanumeric text display Schedule Override Indicator Fan indicator: Temporary: & Permanent: Auto - On - Setpoint or parameter value Cooling Mode Setpoint indicator Off Mode Auto Cooling/ Schedule running indicator Heating mode Fahrenheit or Celsius units Heating Mode Room Temperature Emergency Heat mode...

  • Page 6: Mobile Setup

    The thermostat must be properly configured to operate correctly. Upon powerup or after a factory reset, you are presented with the option for MOBILE or MANUAL SETUP. Use the button to move from MOBILE to MANUAL SETUP, if desired. Description Available Settings Description of Available Settings MOBILE SETUP...
  • Page 7 Manual Setup Menu To Access the Menu after Initial Setup: 1) Press MODE and FAN at the same time for 5 seconds. 2) While in the menu, use the arrows to change the selected option. 3) Use FAN to confirm the option, and MODE to back out of current option or submenu.
  • Page 8 System Submenu To Access this Submenu: 1) Press FAN when viewing the option #1 SYSTEM in the main menu (see page 7). 2) While in the menu, use the arrows to change the selected option. 3) Use FAN to confirm the option, and MODE to back out of current option or submenu.

  • Page 9: Time/Date Submenu

    Time/Date Submenu To Access this Submenu: 1) Press FAN when viewing the option #3 TIME DATE in the main menu (see page 7). 2) Change settings as required using the arrows. 3) Use FAN to confirm a selection, or use MODE to back out of the current option or sub-menu.

  • Page 10: Network Submenu

    Network Submenu To access this submenu: 1) Press FAN when viewing the option #5 NETWORK in the main menu (see page 7). 2) While in the menu, use the arrows to change the selected option. 3) Use FAN to confirm the option, and MODE to back out of current option or submenu.

  • Page 11: System Testing

    6 SYSTEM TESTING Warning Read Before Testing • Do not short (or jumper) across terminals on the gas valve or at the heating or cooling system control board to test the thermostat installation. This could damage the thermostat and void the warranty. •...

  • Page 12: Limited Warranty

    Always refer to the support web site for the latest information. ® Braeburn Systems LLC 2215 Cornell Avenue • Montgomery, IL 60538 Technical Assistance: www.braeburnonline.com Call us toll-free: 866-268-5599 (U.S.) 630-844-1968 (Outside the U.S.) ST920WF-100-01 ©2023 Braeburn Systems LLC • All Rights Reserved.

This manual is also suitable for:

Solo st921wf

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