Braeburn 3020 & 3220 Detailed Installer Guide

This guide provides detailed instructions for installing Braeburn 3020 and 3220 non-programmable thermostats.

Models Covered:

• 3020: Single Stage Heat / Cool Conventional or Heat Pump
• 3220: Up to 3 Heat / 2 Cool Heat Pump, Up to 2 Heat / 2 Cool Conventional

Model numbers are located on the back of the thermostat.

1 Specifications

This thermostat is compatible with:

• Single stage heat / cool conventional and heat pump systems
• Conventional systems up to 2 stages of heating and 2 stages of cooling (3220 only)
• Heat pump systems up to 3 stages of heating and 2 stages of cooling (3220 only)
• 250 - 750 millivolt heating only systems
• 2 or 3 wire hydronic zone systems

Electrical and Control Specifications:

• Electrical Rating: 24 Volt AC
• 1 amp maximum load per terminal
• AC Power: 18 - 30 Volts AC
• DC Power: 3.0 Volt DC (2 "AA" Alkaline Batteries Included)
• Control Range: 45°-90°F (7°-32°C)
• Temperature Accuracy: +/- 1°F (+/- 0.5°C)
• Outdoor Temperature Display Range: -40°-120°F (-40°-49°C)

Terminations:

• 3020: G, Rc, Rh, W1, O/B/V3, Y1, C, S1, S2
• 3220: G, Rc, Rh, W1/E/W3, W2, O/B/V3, Y1, Y2, C, L, S1, S2

2 Installation and Wiring

Warning: Disconnect power before beginning installation.

Thermostat Location

Install the thermostat approximately 5 feet (1.5 m) above the floor in an area with good air circulation and consistent room temperature. Avoid locations affected by drafts, direct sunlight, heat or cold air ducts, appliances, or exterior walls.

Installation Steps:

1. Install the Sub-Base
2. Provide Power
3. Connect Your Wires
4. Attach Thermostat to Sub-Base

1. Install the Sub-Base:

Remove the sub-base from the thermostat body. Mount the sub-base securely to the wall. Drill 3/16" pilot holes as needed, using supplied anchors for drywall or plaster.

2. Provide Power:

The thermostat requires 24 Volt AC Power or 2 "AA" Alkaline batteries. Batteries can be installed as a backup when using 24 Volt AC power.

• For 24 Volt AC Power: Connect the common wire from the transformer to the 'C' terminal on the thermostat sub-base. For dual transformer systems, the common must come from the cooling transformer.
• For Battery Power: Insert 2 "AA" alkaline batteries into the battery compartment, ensuring correct polarity (+/-).

3. Connect Your Wires

Wiring Terminations for Model 3020:

Wiring Terminations for Model 3220:

Typical Wiring Configurations - Conventional Systems

Note: The "System Type" option is configured in the Installer Settings. The 3020 is single-stage.

Heat Only or Millivolt:

Set System Type to 11CONV

1 HEAT / 1 COOL Single or Dual Transformer:

Set System Type to 11CONV

2 HEAT / 2 COOL Single or Dual Transformer:

Set System Type to 22CONV

Hydronic Heat Only:

Set System Type to 1HD

Hydronic Heat / 1 Cool:

Set System Type to 11HD

Notes - Conventional Systems:

[1] Optional 24 Volt AC common connection.

[2] Remove factory installed jumper for dual transformer systems.

[3] In dual transformer systems, transformer common must come from the cooling transformer.

[4] If needed for system. Provide disconnect and overload protection as required.

Additional Wiring Options:

Note: Additional options are configured in the Installer Settings section.

[1] These terminals can be used to connect a Braeburn ® indoor or outdoor remote sensor.

Typical Wiring Configurations - Heat Pump Systems

Note: The "System Type" option is configured in the Installer Settings. The 3020 is single-stage.

1 HEAT / 1 COOL - No Auxiliary Heat:

Set System Type to 11HP

2 HEAT / 2 COOL - No Auxiliary Heat:

Set System Type to 32HP

2 HEAT / 1 COOL - Including Auxiliary Heat:

Set System Type to 22HP

3 HEAT / 2 COOL - Including Auxiliary Heat:

Set System Type to 32HP

Notes - Heat Pump Systems:

[1] Optional 24 Volt AC common connection.

[2] O (cool active) or B (heat active) is selected in the Installer Settings menu.

[3] Install a field supplied jumper between the W2 and W1/E/W3 terminals if there is no separate emergency heat relay installed.

[4] If the L terminal is used, the 24 Volt AC common must be connected (C terminal).

[5] If a separate emergency heat relay is installed, the W1/E/W3 terminal should have both the auxiliary heat 1 relay and emergency heat relay connected. Provide disconnect and overload protection as required.

Notes - Additional Wiring Options:

[1] These terminals can be used to connect a Braeburn ® indoor or outdoor remote sensor.

4 Attach Thermostat to Sub-Base

1. Line up the thermostat body with the sub-base.
2. Carefully push the thermostat body against the sub-base until it snaps in place.
3. Insert Quick Reference Card into the slot on top of the thermostat.

Note: This thermostat ships configured as a 1H/1C conventional thermostat. Confirm installer settings.

Thermostat and Display Overview:

• 1 Room Temperature: Displays the current room temperature.
• 2 Set Temperature: Displays the current set point temperature.
• 3 Reset Button: Resets current time, program, and user settings.
• 4 SYSTEM Button: Selects the system mode (Heat, Cool, Off, Auto).
• 5 BACK Button: Moves back in setup modes.
• 6 NEXT Button: Moves forward in setup modes.
• 7 RETURN Button: Returns to normal mode from setup modes.
• 8 Service Indicators: Displays service/maintenance information.
• 9 FAN Button: Selects the fan mode (Auto, On).
• 10 Quick Reference Instructions: Stored in the slot at the top of the thermostat.
• 11 Low Battery Indicator: Shows when batteries need replacement.
• 12 Fan Indicator: Shows when the system fan is running.
• 13 System Status Indicator: Displays system status information.
• 14 Lock Mode Indicator: Indicates if the thermostat is locked.
• 15 SpeedBar (↑/↓): Increases or decreases settings (time, temperature, etc.).
• 16 Outdoor Temperature Indicator: Displays outdoor temperature if a sensor is connected.
• Battery Compartment: Located in the back of the thermostat.

Note: To view outdoor temperature (if a Braeburn ® outdoor sensor is connected), press the BACK and NEXT buttons simultaneously.

4 Installer Settings

Installer Settings must be configured correctly for proper operation. These settings are menu-driven.

Accessing Installer Settings:

1. Press and hold the RETURN and ↓ buttons for 3 seconds.
2. Release both buttons. The first installer setting will be displayed.
3. Change settings using the ↑ or ↓ portion of the SpeedBar ®.
4. Press NEXT or BACK to navigate between settings. Press RETURN to exit.

Note: Shaded areas in the table below do not apply to the 3020 model.

*When a Braeburn ® outdoor sensor is connected, the thermostat automatically recognizes it. Press BACK and NEXT at the same time to display outdoor temperature.

Notes - Installer Settings:

1 Only available if a 2 or 3 stage system type was selected in option 3.

2 Only available if a Conventional system was selected in option 3.

3 Only available if a 2 or 3 stage Heat Pump system was selected in option 3.

4 Only available if a Heat Pump system was selected in option 3.

5 Only available if the 24 Volt AC common wire is connected to the C terminal.

6 Not available if a Heat Only Hydronic system is selected in option 3.

7 Only available if a Braeburn ® indoor remote sensor was connected.

8 Only available if auto changeover was enabled in option 2.

9 Only available if a Braeburn outdoor sensor was connected.

Detailed Explanation of Installer Settings:

1. Temperature Scale: Selects the display scale in °F or °C.
2. Auto Changeover: Enables or disables the automatic switching between heating and cooling modes. A 5-minute delay is active when switching modes.
3. System Type: Configures the thermostat for the specific HVAC system. Changes here may reset other settings.
4. 1st Stage Differential: Sets the temperature difference for the first stage of heating or cooling.
5. 2nd Stage Differential: Sets the temperature difference for the second stage of heating or cooling.
6. 3rd Stage Differential: Sets the temperature difference for the third stage of heating or cooling.
7. 1st Stage Fan Control: Selects the fan control type for the first stage of heating (Gas or Electric).
8. Emergency Heat Fan Control: Selects the fan control type for emergency heat (Electric or Gas).
9. Reversing Valve (O/B Terminal): Configures the O/B terminal for cool-active or heat-active reversing valve operation.
10. Fossil Fuel Backup Heat: Selects the type of auxiliary heat (Electric or Gas) for heat pump systems.
11. Compressor Power Outage Protection: Enables or disables a delay for the compressor after a power outage to prevent damage.
12. AC Power Interrupt Warning: Enables or disables a warning message when AC power is lost.
13. Compressor Short Cycle Protection: Sets a delay to prevent the compressor from cycling on and off too rapidly.
14. Residual Cooling Fan Delay: Sets a delay for the fan after the cooling compressor turns off to improve efficiency.
15. Indoor Remote Sensor Control: Configures how the thermostat uses readings from an indoor remote sensor (thermostat only, remote only, or combined).
16. Lockout Security Level: Sets the level of keypad lockout (full or partial).
17. Auto Changeover Dead Band: Sets the temperature difference between heating and cooling set points in Auto Changeover mode to prevent system conflict.
18. Compressor Balance Point: Locks out the compressor's heating function below a specified outdoor temperature.
19. Auxiliary Heat Balance Point: Locks out the auxiliary heat function above a specified outdoor temperature.
20. Heat Set Point Upper Limit: Sets the maximum adjustable temperature for heating.
21. Cool Set Point Lower Limit: Sets the minimum adjustable temperature for cooling.

5 System Testing

Warning: Read Before Testing

• Do not short terminals on the gas valve or control board.
• Do not select COOL mode if the outside temperature is below 50°F (10°C).
• The thermostat has an automatic compressor protection delay.

Note: The compressor delay can be bypassed by pressing the reset button. This will reset user settings but retain installer settings.

Testing Procedure:

1. Heat Mode: Press SYSTEM until HEAT mode is selected. Raise the set temperature at least 3°F above the room temperature. The heating system should start.
2. Off Mode: Press SYSTEM to turn the system OFF. Allow the heating system to shut down.
3. Cool Mode: Press SYSTEM until COOL mode is selected. Lower the set temperature at least 3°F below the room temperature. The cooling system should start (unless compressor protection is active).
4. Off Mode: Press SYSTEM to turn the system OFF. Allow the cooling system to shut down.
5. Fan ON Mode: Press FAN until FAN ON is selected. The system fan should start.
6. Fan AUTO Mode: Press FAN until FAN AUTO is selected. Allow the system fan to turn off.

Limited Warranty

When installed by a professional contractor, this product is backed by a 5-year limited warranty. For full warranty details, visit www.braeburnonline.com/warranty or contact Braeburn Systems LLC at 866.268.5599.

Store this manual for future reference.

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.)