Braeburn 4020 Installer Manual
Programmable Thermostats
PREMIER SERIES
4020 Heat Only Hydronic with Freeze Protection
Model number is located on back of thermostat.
1 SPECIFICATIONS
Compatibility:
- Single stage hot water or steam systems
- Single stage in floor heating systems
- 250 - 750 millivolt heating only systems
- 2 or 3 wire hydronic zone systems
Terminations:
R, W, V3, C, S1, S2
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° to 90° F (7° to 32° C)
- Temperature Accuracy: +/- 1° F (+/- .5° C)
- Outdoor Temperature Display Range: -40° to 120° F (-40° to 49° C)
Model Number: 4020-100-03
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.
Install the Sub-Base:
- Remove the sub-base from the body of the thermostat.
- Mount the sub-base as shown below:
Drill 3/16" pilot holes in your desired location. Use supplied anchors for drywall or plaster.
[Diagram: Wall with mounting holes and wires]
[Diagram: Sub-base with wire terminals and mounting points]
Provide Power
24VAC Power Terminal (C)
[Diagram: 24VAC power terminal block labeled 'C']
Batteries Installed as Shown
[Diagram: Thermostat rear showing battery compartment with +/- indicators]
- Battery Power: Insert the 2 supplied "AA" type alkaline batteries into the battery compartment located in the rear housing of the thermostat. Make sure to position the Positive (+) and Negative (-) sides of the batteries correctly with the +/- symbols in the battery compartment.
- Optional 24 Volt AC power: Connect the common side of the transformer to the C terminal on the thermostat sub-base. In dual transformer installations, the transformer common must come from the cooling transformer.
Attach to Thermostat Sub-Base
[Diagram: Thermostat body and sub-base being joined]
Once you complete the wiring in Section 3, attach thermostat to sub-base and then configure the Installer Settings in Section 5.
- Line up the thermostat body with the sub-base.
- Carefully push the thermostat body against the sub-base until it snaps in place.
NOTE: This thermostat ships configured for hot water systems (HWTR).
3 WIRING
Conventional Systems - Typical Wiring Configurations
| Wiring Terminal | Terminal Description | Hot Water Heat (System Type: HWTR) | Steam Heat (System Type: STM) | Under Floor Heat (System Type: UFLR) |
|---|---|---|---|---|
| R | 24 VAC Heating Transformer | R | R | R |
| W | Heat Relay | W | W | W |
| V3 | Zone Valve Power Close | V31 | V31 | V31 |
| C | 24 VAC Transformer Common | C2 | C2 | C2 |
"System Type" is configured in the Installer Settings - See section 5.
NOTES - Conventional Systems
- Only connect if needed for system
- Optional 24 VAC transformer common connection
Provide disconnect and overload protection as required.
Additional Wiring Options
| Wiring Terminal | Terminal Description | Notes |
|---|---|---|
| S1 S2 | Remote Sensor | These terminals can be used to connect an outdoor or indoor remote sensor or in-floor slab sensor. For remote sensor configuration, refer to installer settings 12-14 in section 5. |
NOTE: Use 18-22 gauge unshielded wire with a 200-foot maximum wire length. Avoid running wire along with 120 VAC wiring or near magnetic ballasts.
4 QUICK REFERENCE
Thermostat
1 SYSTEM Button: Selects the system you want to control
2 PROG Button: Enters programming mode or hold for 3 seconds to enter SpeedSet® mode
BACK Button*: Secondary function of the PROG button - Moves to previous setting
HOLD Button: Enters / Exits the HOLD mode (program bypass mode)
3 NEXT Button*: Secondary function of the HOLD button - Moves to next setting
TEMP Button: Used to view temperature at remote sensor
4 RETURN Button*: Secondary function of the TEMP button - Exits program or setting modes
5 Up / Down Arrow Buttons: Increases or decreases settings (time, temperature, etc.)
6 MENU Button: Used to access thermostat User / Installer setting modes
7 Lock / Unlock Thermostat: Access user Lock / Unlock screen by holding PROG and HOLD together for 5 seconds
Battery Compartment: Located on the back side of thermostat
* BACK, NEXT and RETURN are secondary functions of the PROG, HOLD and TEMP buttons when in programming or configuration modes, BACK, NEXT and RETURN appear in the display screen indicating that the PROG, HOLD and TEMP buttons now function as BACK, NEXT and RETURN.
Thermostat Display
[Diagram: Thermostat display showing various elements]
1 Room Temperature: Displays the current room temperature
2 Set Temperature: Displays the current setpoint temperature
3 Override Indicator: Indicates that the current program schedule has been temporarily overridden
4 Time of Day: Displays the current time of day
5 Message Center: Displays various thermostat status and maintenance information
6 System Mode: Displays the system mode and current system status
7 Lock Mode Indicator: Indicates if the thermostat is locked
8 Low Battery Indicator: Indicates when the batteries need to be replaced
9 Outdoor Temperature: If a Braeburn® outdoor sensor is connected, the outdoor temperature will be displayed
5 INSTALLER SETTINGS
The Installer Settings must be properly configured in order for this thermostat to operate correctly. The Installer Settings are menu driven. The portion of these settings that do not apply to your setup will be skipped.
To Enter Installer Settings Menu
- Press and hold down the MENU button for 5 seconds.
- Release the MENU button after the first installer setting is displayed.
- Change settings as required using the [up-arrow] or [down-arrow] buttons.
- Press NEXT (HOLD) or BACK (PROG) to move to the next or previous setting.
- Press RETURN (TEMP) to exit. Menu will exit automatically after last setting.
*If UNLOCK 0000 is displayed, you must enter your 4-digit installer lock code to proceed (see Installer Settings 20 and 21).
[Diagram: Thermostat showing menu navigation]
| No. | Installer Setting | Displayed | Default Setting | Available Settings | Description of Available Settings |
|---|---|---|---|---|---|
| 1 | Residential or Commercial Profile | MODE | RES | RES COMM | Select for Residential profile Select for Commercial profile If residential mode is selected, 4 programming events per day are available (MORN, DAY, EVE, NITE). If commercial profile is selected, 2 programming events per day are available (OCC, UNOC). |
| 2 | Programming Mode | PROGRAM DAYS | 7 | 7 52 NO | Select for 7-day programming mode Select for 5-2 day programming mode Select for non-programmable mode [Only available if a Residential (RES) profile was selected in setting 1] Selects the programming capabilities of the thermostat, either full 7 individual days, 5-2 day (weekday/weekend) programming or non-programmable. |
| 3 | Clock Format | CLOCK | 12HR | 12HR 24HR | Select for a 12-hour clock Select for a 24-hour clock Selects either a 12 hour or 24 hour clock format. |
| 4 | Temperature Scale | DEGREE | F | F C | Select for Fahrenheit temperature display Select for Celsius temperature display Selects a temperature scale of either °F or °C. |
| 5 | System Type | SYSTEM | HWTR | HWTR STM UFLR | Select for hot water systems Select for steam systems Select for under-floor systems Select the type of equipment you are controlling. |
| 6 | Differential Temperature | DEGREE DIFI | 1.0 | 0.5, 1.0, 2.0 | Select a temperature differential of 0.5°, 1° or 2° F (0.2°, 0.5° or 1.0° C) Selects a temperature differential which controls the degree of separation between the setpoint temperature and the heating system. |
| 7 | AC Power Interrupt Warning | POWR MON | OFF | OFF ON | Power outage alert is disabled Power outage alert is enabled [Only available if thermostat is powered with a 24 VAC common (C) wire] When enabled, the thermostat will display NO POWER when AC power to the thermostat is lost. Batteries must also be installed for this feature to operate. |
| 8 | Boiler Minimum Off Time | BOIL MIN OFF | 0 | 5, 4, 3, 2, 1, 0 | Select a boiler minimum off time in minutes Selects the minimum amount of time that the boiler will remain off after a call for heat ends. During this time, the thermostat will not respond to a heating call. Once the selected time has elapsed, the thermostat will answer heating calls as necessary. |
| 9 | Heat Setpoint Upper Limit | HIGH LIM HEAT | 90 | 90 - 45 (32° to 7°C) | Select a Heat Setpoint Upper Limit of 90° to 45°F (32° to 7°C) Selects the upper setpoint adjustment limit that cannot be exceeded in heat mode. |
| 10 | Heat Setpoint Lower Limit | LOW LIM HEAT | 45 | 45 - 90 (7° to 32°C) | Select a Heat Setpoint Lower Limit of 45° to 90°F (7° to 32°C) Selects the lower setpoint adjustment limit that cannot be exceeded in heat mode. |
| 11 | Adaptive Recovery Mode (ARMTM) | RECOVER | OFF | OFF ON | Adaptive Recovery Mode is disabled Adaptive Recovery Mode is enabled [Not available if non-programmable was selected in setting 2] During ARM, room temperature is recovered by turning on the heating up to 2-hours before the end of the set back period. The setpoint temperature is changed to that of the upcoming program temperature. |
| 12 | Remote Sensor Type | SENSOR TYPE | F | F A 0 | Select for a remote air sensor Select for a remote floor (slab) sensor Select for an outdoor sensor [Only available if a Braeburn sensor or AFTS floor sensor is connected] If a Braeburn sensor is connected, the thermostat will automatically detect the sensor. Select the type of remote sensor that was connected. NOTE: Option F for floor (slab) sensor will only appear if the system type was set to UFLR in setting number 5. |
| 13 | Indoor Remote Air Sensor | REMOTE SENS | I | I E A | Temperature is sensed from thermostat only (Internal) Temperature is sensed from remote sensor only (External) Temperature is averaged between thermostat and remote sensor (Average) [Only available if Braeburn model 5390 remote indoor sensor is connected and air sensing (A) was selected in setting 12] If a Braeburn indoor remote sensor is connected, the thermostat will automatically detect the sensor. When an indoor sensor is detected, you may select between thermostat only (I), remote sensor only (E) or the average of the thermostat and remote sensor (A). |
| 14 | Floor Remote Sensor Control | FLOOR SENS | A | A F | Select for remote air sensing Select for remote floor (slab) sensing [Only available if remote sensor type was set to F (floor) in setting 12] Selects how your thermostat will use the connected floor sensor. If A is selected, the thermostat will only use the floor sensor for floor temperature limits. If F is selected, the thermostat will use the floor sensor for heating control instead of the internal temperature sensor. |
| 15 | Floor Temperature Offset | OFFSET FLR | 0 | -5 to 5 (-2° to 2.5°C) | Select the floor temperature offset in degrees [Only available if remote sensor type was set to F (floor) in setting 12] Select a value to offset the floor temperature reading, from -5 to 5°F (-2.5 to 2.5°C). This offset will be applied to the floor temperature reading used for display and heating control. This offset value does not apply to the air temperature reading. |
| 16 | High Floor Temperature Limit | HI FLOOR LIM | 85 | 50-95 (10° to 35°C) | Select a High Floor Temperature Limit of 50° to 95°F (10° to 35°C) [Only available if floor remote sensor control was set to A (air) in setting 14] Selects a high floor temperature protection limit. When the floor temperature rises above this value, the heating will be shut off. The heating will remain shut off until the floor temperature falls 5°F (3°C) below the limit value. CAUTION - Take care when selecting a value for this setting, as the heat will be shut off when this temperature is reached. This limit will only be observed while the thermostat is in HEAT mode. |
| 17 | Low Floor Temperature Limit | LO FLOOR LIMIT | 50 | 40-85 (5° to 30°C) | Select a Low Floor Temperature Limit of 40° to 85°F (5° to 30°C) [Only available if floor remote sensor control was set to A (air) in setting 14] Selects a low floor temperature protection limit. When the floor temperature falls below this value, the heating will be run continuously until the floor temperature reaches the specified value. CAUTION - Take care when selecting a value for this setting, as the heat will be run continuously until this temperature is reached. This limit will only be observed while the thermostat is in HEAT mode. |
| 18 | Floor Freeze Protection Limit | FREEZE PROTECT ACTV | 40 | 40-60 (5° to 16°C) | Select a Floor Freeze Protection Limit of 40° to 60°F (5° to 16°C) [Only available if remote sensor type was set to F (floor) in setting 12] Selects a floor freeze protection limit. When the floor temperature falls below this value, the heating will be run continuously until the floor temperature reaches the specified value. CAUTION - Take care when selecting a value for this setting, as the heat will be run continuously until this temperature is reached. This limit will only be observed even when the thermostat is in OFF mode. |
| 19 | User Lock Security Level | USERLOCK LVL | 3 | 3 2 1 | If locked, all buttons are disabled If locked, all buttons except [up-arrow] and [down-arrow] are disabled If locked, only the PROG, HOLD and MENU buttons are disabled Selects the level of keypad lockout when the thermostat has been locked by the user. See the User Manual for instructions on setting the 3-digit lock code and locking/unlocking the thermostat. |
| 20 | Installer Lock | INSTLOCK | OFF | OFF ON | Installer Lock disabled Installer Lock enabled When enabled, a 4-digit lock code can be entered in setting 21. This lock code will be required the next time the Installer Settings menu is accessed. Select OFF to skip the installer lock. |
| 21 | Installer Lock Code | IL CODE | 0000 | 0-9 | Select 0-9 for each digit [Only available if Installer Lock was enabled in setting 20] Select a 4-digit lock code (0-9 for each digit) to lock the Installer Settings menu. The code 0000 is not a valid lock code and cannot be used. |
| 22 | Installer Clear (factory reset) | CLEAR | NONE | NONE ALL | Clear disabled - No changes made Clear enabled - Factory Reset Selecting ALL will return thermostat to all factory default settings. Factory reset will take affect upon exiting Installer settings menu. |
Additional options are located in the User Settings – See User Manual.
6 SYSTEM TESTING
[Warning] Read Before Testing
Do not short (or jumper) across terminals on the gas valve or at the heating system control board to test the thermostat installation. This could damage the thermostat and void the warranty.
- Press the SYSTEM button until the thermostat is in HEAT mode.
- Press the [up-arrow] button to raise the set temperature a minimum of 3 degrees above the current room temperature. The system should start within a few seconds.
- Press the SYSTEM button until the thermostat is in the OFF mode. Allow the heating system to fully shut down.
Limited Warranty
When installed by a professional contractor, this product is backed by a 5 year limited warranty. Limitations apply. For limitations, terms and conditions, you may obtain a full copy of this warranty:
- Visit us online: www.braeburnonline.com/warranty
- Call us: 866.268.5599
- Write us: Braeburn Systems LLC, 2215 Cornell Avenue, Montgomery, IL 60538
[Description of 5 YEAR LIMITED WARRANTY graphic]
Installer - store this manual for future reference
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