TTE-650G Programmable Floor Heating Thermostat Installation & User Guide
Everything you need to install, configure, program, and operate the TTE-650G programmable thermostat for electric floor heating systems.
The TTE-650G is a programmable floor heating thermostat designed to detect indoor temperature and automatically regulate heating output according to the selected temperature setting and room temperature. The built-in clock supports a 7-day user schedule for programmable heating control.
The thermostat operates with 120VAC or 240VAC power at 50/60Hz and is designed for electric floor heating applications. It includes Class A 5mA GFCI protection and supports a maximum resistive output load of 15A.
At a Glance
- Model: TTE-650G
- Application: Electric floor heating
- Power supply: 120VAC/240VAC, 50/60Hz
- Self-consumption: Less than 2W
- Installation: 120V electrical box, deep
- Dimensions: 120mm x 76mm
- Outer shell: Tempered glass and PC alloy
- Wiring: Wiring and terminals
- GFCI: Class A, 5mA
- Output load: 15A, resistive
- Maximum power: 1,800W at 120VAC
- Maximum power: 3,600W at 240VAC
- Accuracy: ±0.1°C (1°F)
How the TTE-650G Works
The thermostat detects the indoor temperature and displays the corresponding temperature value. It automatically regulates the electric floor heating output according to the selected set point and the measured room temperature.
The internal clock controls the programmable 7-day schedule, allowing the thermostat to adjust heating operation according to the programmed schedule.
Important Installation Information
The TTE-650G is a line-voltage thermostat connected directly to an electric heating system. Before installation, verify the electrical supply and heating load and follow the wiring and installation instructions provided with the thermostat.
Electrical installation should comply with applicable local electrical codes and requirements. Where required, installation should be performed by a qualified electrician.
Installation Guide Overview
This guide walks through the TTE-650G installation and operation, including thermostat installation, electrical wiring, floor sensor connection, controls, GFCI testing, time and schedule programming, operating modes, temperature settings, floor temperature protection, and other available thermostat functions.
The following sections are based on the supplied TTE-650G installation and user manual and are organized for easier reading and reference on Flooringsupplyshop.com.
1. INSTALLATION
Before installing the TTE-650G, turn off power to the electrical circuit at the circuit breaker. The thermostat is a line-voltage control for electric floor heating systems, so the electrical connections must be made correctly before the thermostat is powered.
Separate the Control Panel and Power Board
Use a screwdriver to carefully separate the front control panel from the power board of the thermostat, as shown in Figures 1 and 2 in the installation illustration below.
Choose the Installation Location
Choose a suitable indoor location for the thermostat. The recommended installation height is approximately 4.5 to 5 feet above the floor.
Do not install the thermostat close to a heat source, such as a hot water pipe, heating pipe, wall-mounted light fixture, or in direct sunlight. Selecting an appropriate location helps the thermostat accurately sense the room temperature.
Image filename: tte-650g-thermostat-installation.jpg
Connect the Power Supply
Connect the incoming power wires to the Line 1 (L) and Line 2 (N) connections on the thermostat power board using the connectors provided.
Connect the Floor Heating Load
Connect the electric floor heating load wires to the Load 1 and Load 2 connections on the power board using the provided connectors.
The TTE-650G supports dual-voltage operation for 120VAC and 240VAC systems. The maximum resistive load is 15A, with a maximum load of 1,800W at 120VAC or 3,600W at 240VAC.
Connect the Floor Temperature Sensor
Connect the floor sensor wire to terminals 1 and 2 behind the power board. Tighten the terminal screws securely using the screwdriver provided with the thermostat.
The floor sensor is used to monitor floor temperature and can be used with the thermostat's floor temperature control and floor temperature protection functions.
Optional Remote Control Connection
If remote control is required and the appropriate auxiliary power module is being used, connect the auxiliary module to terminals 5 and 6 of the thermostat as shown in the installation diagram.
Wiring Connections
Connect the thermostat wiring according to the wiring diagram for the applicable electrical configuration. The TTE-650G is designed for 120VAC or 240VAC electric floor heating systems.
The detailed wiring diagram below shows the electrical connections for the TTE-650G and the applicable 120VAC and 240VAC configurations. Follow the diagram for the specific voltage and installation configuration.
Mount the Thermostat
After completing the wiring connections, carefully place the power board into the electrical wall box and secure it using the 2 mounting screws provided.
Once the power board is securely mounted, clip and fasten the front control panel into position. Secure the front control panel using the bottom screw.
Installation Checklist
- Power to the circuit is turned off before wiring.
- The thermostat is installed indoors at the recommended height.
- The thermostat is positioned away from heat sources and direct sunlight.
- Line 1 (L) and Line 2 (N) power connections are correctly connected.
- Load 1 and Load 2 heating wires are correctly connected.
- The floor sensor is connected to terminals 1 and 2.
- Any optional auxiliary module is connected to terminals 5 and 6 when required.
- The power board is secured to the electrical box with the supplied screws.
- The front control panel is properly clipped and secured.
Important: Do not restore electrical power until all wiring and mounting connections have been completed and checked.
2. WIRING DIAGRAM
The TTE-650G is a dual-voltage thermostat designed for electric floor heating systems operating at either 120VAC or 240VAC. The maximum resistive load is 15A, with a maximum output of 1,800W at 120VAC or 3,600W at 240VAC.
Refer to the wiring diagram below for the thermostat power, heating load, floor sensor, and auxiliary connection terminals.
Thermostat Connections
- Terminal 1: Floor sensor connection
- Terminal 2: Floor sensor connection
- Terminal 3: Connection shown in the wiring diagram
- Terminal 4: Connection shown in the wiring diagram
- Terminal 5: Auxiliary connection shown in the wiring diagram
- Terminal 6: Auxiliary connection shown in the wiring diagram
120VAC Operation
For a 120VAC electric floor heating system, the wiring diagram specifies a maximum resistive load of 15A / 1,800W.
240VAC Operation
For a 240VAC electric floor heating system, the wiring diagram specifies a maximum resistive load of 15A / 3,600W.
Floor Sensor
The floor temperature sensor connects to terminals 1 and 2 of the thermostat. The floor sensor allows the thermostat to monitor floor temperature and is used by the thermostat's floor temperature functions.
Wiring Important
Always verify the electrical supply, heating load, and terminal connections before applying power to the thermostat. Follow the wiring diagram supplied with the TTE-650G and applicable local electrical requirements.
Do not energize the thermostat until the wiring has been completed and checked.
Buttons and Display
The TTE-650G uses push-button controls and an LCD display for adjusting temperature settings, programming schedules, selecting operating modes, and accessing thermostat functions.
Thermostat Controls
- Up: Increases the selected temperature or setting value.
- Down: Decreases the selected temperature or setting value.
- Schedule Mode: Provides access to the thermostat's programmable schedule functions.
- Energy-Saving Mode: Provides access to the energy-saving operating mode.
- Away Mode: Provides access to the away operating mode.
- ON/OFF switch: Turns the thermostat on or off.
- GFCI Test: Tests the thermostat's built-in GFCI protection.
LCD Display Indicators
The display provides information about the thermostat's current operating condition and settings. Depending on the current mode, the display can show the following information:
- Current day
- Current time
- Time period
- Room temperature control
- Floor temperature control
- Target temperature
- Room temperature
- Floor temperature
- GFCI alert
- Heating status
- High floor temperature indication
- Temperature scale in Celsius or Fahrenheit
- Ambient temperature
- Keypad lock
- Remote control
- Manual mode
- Schedule mode
- Away mode
- Energy-saving mode
Understanding the Temperature Display
The thermostat can display the selected target temperature together with the measured room or floor temperature information, depending on the operating mode and configured settings.
The display also provides visual indicators for heating operation, GFCI status, temperature scale, lock status, schedule operation, away mode, and energy-saving mode.
Temperature Control Indicators
The thermostat's display identifies whether the temperature control is based on the room temperature, floor temperature, or the configured combination of room and floor temperature functions.
The exact indicator shown on the display will depend on the selected thermostat settings and operating mode.
4. OPERATION INSTRUCTIONS
ON/OFF Settings
To turn the TTE-650G on, start from the OFF display and slide the ON/OFF side switch upward. The thermostat will turn on and display the operating screen.
To turn the thermostat off, slide the ON/OFF side switch downward while the thermostat is operating. The display will show OFF.
GFCI Test
The TTE-650G includes built-in Class A GFCI protection. The GFCI function should be tested after installation to verify that it is operating correctly.
Before performing the test, make sure the thermostat is in heating mode. The target temperature may need to be adjusted higher than the current room temperature so the thermostat starts heating.
When the thermostat is operating and heating, press the GFCI button on the side of the thermostat. During a successful test, the display will show GFCI, the GFCI indicator light will turn on, and the thermostat will stop heating.
After testing, turn the thermostat off and then turn it on again. The GFCI icon should disappear from the display.
GFCI Test Result
- Thermostat should be in heating mode before testing.
- Adjust the target temperature if necessary to start heating.
- Press the GFCI button on the side of the thermostat.
- The display should show GFCI.
- The GFCI indicator light should turn on.
- The thermostat should stop heating.
If the expected GFCI test response does not occur, the manual instructs you to contact the supplier for a replacement.
Local Time Setting
To set the local time, the thermostat must be in OFF mode. Press S3 to enter the time-setting function. The blinking icon identifies the setting that can be adjusted.
Press S1 or S2 to adjust the selected value. Press S4 to move to the next setting item.
When the time settings are complete, press S4 to confirm. You can also wait approximately 5 seconds for the thermostat to return to the main interface.
During the time-setting process, pressing S3 returns the thermostat to the main interface quickly.
Important: Set the local time before programming the thermostat's schedule so that programmed heating periods operate according to the correct time.
5. WORKING MODES AND PROGRAM SCHEDULE
The TTE-650G provides four working modes to accommodate different heating preferences: Schedule Mode, Energy-Saving Mode, Away Mode, and Manual Mode.
Working Mode Settings
- Schedule Mode: During the normal display, press S3 to switch to Schedule Mode. The schedule icon will appear on the screen.
- Energy-Saving Mode: During the normal display, press S4 to switch to Energy-Saving Mode. The energy-saving icon will appear on the screen.
- Away Mode: During the normal display, press S5 to switch to Away Mode. The away icon will appear on the screen.
- Manual Mode: During the normal display, press S1 or S2 to switch to Manual Mode. The manual mode icon will appear on the screen.
Schedule Mode Settings
The TTE-650G provides three programmable schedule options:
- 7-Day Programmable: Allows the schedule to be programmed for each day.
- 5+2 Programmable: Uses one schedule for Monday through Friday and another schedule for Saturday and Sunday.
- 6+1 Programmable: Uses one schedule for six days and a separate schedule for the remaining day.
To enter the schedule setting interface, press and hold S3 for 5 seconds while the thermostat is displaying the normal screen.
Press S3 again to switch between the available schedule formats: 7:0, 5:2, and 6:1. After selecting the desired schedule format, press S4 to confirm.
The blinking icon identifies the setting that can be adjusted. Press S3 to select the weekday or setting to be changed. Use S1 or S2 to adjust the value, then press S4 to confirm and move to the next setting.
After all schedule settings have been entered, press S3 to save the settings and return to the main interface. The thermostat will also save the settings automatically after approximately 5 seconds without button input.
Factory Default Schedule
The thermostat's default schedule is shown below. These settings can be changed to suit the heating requirements of the installation.
- Period 1, Monday-Friday: 5:00 AM, target temperature 28°C (82°F)
- Period 2, Monday-Friday: 7:00 AM, target temperature 24°C (75°F)
- Period 3, Monday-Friday: 5:00 PM, target temperature 28°C (82°F)
- Period 4, Monday-Friday: 10:00 PM, target temperature 24°C (75°F)
- Period 1, Saturday-Sunday: 5:00 AM, target temperature 28°C (82°F)
- Period 2, Saturday-Sunday: 9:00 AM, target temperature 24°C (75°F)
- Period 3, Saturday-Sunday: 5:00 PM, target temperature 28°C (82°F)
- Period 4, Saturday-Sunday: 10:00 PM, target temperature 24°C (75°F)
Tip: Set the thermostat's local time before programming the schedule. The programmed start times depend on the thermostat's internal clock.
6. ENERGY-SAVING, AWAY, AND MANUAL MODES
Energy-Saving Mode
During the normal display, press S4 to enter the Energy-Saving Mode setting. Press S1 or S2 to adjust the value, then press S4 to save the setting and return to the main interface.
Away Mode
During the normal display, press and hold S5 for 3 seconds to enter the Away Mode setting. Press S1 or S2 to adjust the value, then press S5 to save the setting and return to the main interface.
Manual Mode
During the normal display, press S1 or S2 to enter the Manual Mode setting interface. Press S1 or S2 to adjust the value, then press S4 to save the setting and return to the main interface.
Check Room and Floor Temperature
During the normal display, press S4 and S5 at the same time to switch between and display the ambient room temperature and floor temperature.
This allows you to check the temperatures being detected by the thermostat and the connected floor sensor.
Lock the Keys
During the normal display, press S1 and S2 at the same time to lock the thermostat keys. A lock icon will appear on the screen.
After the keys are locked, pressing the thermostat buttons will not operate the controls until the keys are unlocked according to the procedure in the user instructions.
Control Methods
The TTE-650G provides three temperature control methods. The thermostat can use the floor temperature as the current room temperature, use the temperature detected by the built-in sensor as the current room temperature, or use the built-in room temperature sensor while using the floor temperature as an inspection value for floor protection.
The available control method determines how the thermostat responds to the measured temperature and controls the electric floor heating system.
7. TEMPERATURE CONTROL AND FLOOR PROTECTION
Temperature Control Methods
The TTE-650G provides three ways to control the thermostat:
- Floor Temperature Control: The thermostat uses the floor temperature as the current room temperature for heating control.
- Built-In Room Sensor Control: The thermostat uses the temperature detected by its built-in sensor as the current room temperature.
- Room Sensor with Floor Temperature Protection: The thermostat uses the built-in sensor to control the room temperature while monitoring the floor temperature as an inspection value to protect the floor.
The thermostat can display the room temperature and floor temperature indicators according to the selected control method.
Heating Operation
When the room temperature is below the target temperature, the thermostat starts heating and the heating indicator appears on the display.
When the room temperature reaches or exceeds the target temperature, the thermostat stops heating and the heating indicator disappears.
High Temperature Floor Protection
When the thermostat is configured to use the floor temperature as an inspection value for floor protection, the TTE-650G monitors the floor temperature while controlling the heating system.
If the floor temperature rises above 45°C (113°F), the thermostat displays FLOOR LIMIT and enters high-temperature protection mode. The thermostat stops heating.
When the floor temperature falls below 40°C (104°F), the FLOOR LIMIT indication disappears. If the target temperature is higher than the room temperature, the thermostat will then start heating again.
Important: The floor protection function is part of the thermostat's temperature-control operation when the floor temperature is selected as the inspection value. Follow the installation and configuration instructions carefully when setting up the thermostat for your specific electric floor heating system.
8. REMOTE CONTROL, SENSOR FAILURE, AND TEMPERATURE SCALE
Remote Control
When a signal is detected on the Setback terminal, the thermostat enters Remote Mode.
When the room temperature is below the target temperature set on the remote side, the thermostat starts heating. The heating indication appears on the display and an output signal is provided on the Relout terminal.
When the room temperature is above the target temperature set on the remote side, the thermostat stops heating. The heating indication changes accordingly and there is no output signal on the Relout terminal.
Sensor Failure
If the thermostat detects a sensor failure, EEE appears in the temperature display area and the thermostat stops heating.
If an EEE indication appears, check the connected sensor and wiring according to the installation instructions before returning the thermostat to normal operation.
Celsius and Fahrenheit Scale
The TTE-650G can display temperature in either Celsius (°C) or Fahrenheit (°F).
To switch between Celsius and Fahrenheit, place the thermostat in OFF mode, then press S3 and S4 at the same time.
Important: Remote control operation depends on the appropriate connection to the thermostat's Setback terminal. Follow the wiring and installation instructions before connecting any remote control equipment.
9. HIDDEN MENU SETTINGS - P1 THROUGH P5
The TTE-650G includes a hidden menu that allows additional thermostat parameters to be adjusted. These settings provide control over floor temperature protection, room temperature calibration, temperature setback, button sound volume, and backlight operation.
Entering the Hidden Menu
Place the thermostat in OFF mode. Press S3 and S5 at the same time to enter the hidden menu.
Press S1 or S2 to change the value and enter the password 1234. Press S5 to confirm.
After entering the hidden menu, press S4 to move to the next parameter.
P1 - High Temperature Protection Temperature
The default high temperature floor protection setting is 45°C (113°F).
The available setting range is 45°C to 95°C (113°F to 203°F). The setting can also be changed to OF, which turns off floor temperature protection.
P2 - Room Temperature Calibration
The default room temperature calibration value is 0.
The adjustable range is -9.5°C to +9.5°C (-16°F to +16°F).
P3 - Temperature Setback Value
The default temperature setback value is 2°C (4°F).
The adjustable range is 0.5°C to 10°C (1°F to 18°F).
P4 - Button Sound Volume
The default button sound volume is 3.
The available setting range is OF or 1 through 9. The OF setting turns the button sound off, while levels 1 through 9 select the volume level.
P5 - Backlight Brightness
The default backlight setting is NO.
The available settings are NO/OF. The manual specifies that ON keeps the backlight always on, while OF turns the backlight off when there is no operation.
Important: The hidden menu contains settings that can affect thermostat operation. Change these parameters only when you understand the function of the specific setting and its requirements for your floor heating system.
10. HIDDEN MENU SETTINGS - P6 THROUGH P12
The Hidden Menu continues with additional settings for temperature control, time format, floor temperature calibration, setback values, remote control temperature, and restoring the thermostat to factory default settings.
P6 - Control Method
The default control method is A-F. The available settings are A-F, Air, and Flo.
- Air: Temperature detected by the built-in sensor is used as the room temperature.
- Flo: Temperature detected by the floor sensor is used as the room temperature.
P7 - Time Format
The default time format is 24-hour. The available settings are 12-hour or 24-hour.
- 12: 12-hour format
- 24: 24-hour format
P8 - Floor Temperature Calibration
The default floor temperature calibration value is 0°C (0°F).
The adjustable range is -9.5°C to +9.5°C (-16°F to +16°F).
P9 - Floor Temperature Control Setback Value
The default floor temperature control setback value is 1.5°C (3°F).
The adjustable range is 0.5°C to 10°C (1°F to 18°F).
P10 - Floor Protection Temperature Setback Value
The default floor protection temperature setback value is 5.0°C (9°F).
The adjustable range is 0.5°C to 10°C (1°F to 18°F).
P11 - Target Room Temperature During Remote Control Mode
The default target room temperature during Remote Control Mode is 16.5°C (62°F).
The adjustable range is 5°C to 37°C (41°F to 99°F).
P12 - Reset to Factory Default
The default value for P12 is 53, with an adjustable range of 0 to 99.
To reset the thermostat to factory default settings, change the value to 55 and press S3.
Important: These Hidden Menu settings affect how the thermostat measures temperature, controls the floor heating system, and operates in different modes. Record the original settings before making changes if the thermostat is already configured for an existing installation.
11. HIDDEN MENU SETTINGS - P13 THROUGH P15
The final Hidden Menu settings control the room temperature increasing speed during heating, the temperature display scale, and the GFCI detecting level.
P13 - Room Temperature Increasing Speed During Heating
The default setting is 5, with an adjustable range of 0 to 99.
The manual explains that a setting of 5 means 5 × 30 seconds = 150 seconds. The thermostat increases the room temperature setting every 150 seconds until the actual room temperature is reached.
P14 - Celsius / Fahrenheit
P14 controls the temperature display scale.
- °C: Temperature is displayed in Celsius.
- °F: Temperature is displayed in Fahrenheit.
The available settings are °C / °F.
P15 - GFCI Detecting Level
The default GFCI detecting level is NOR. The available settings are NOR, 1, 2, 3, and OFF.
- NOR: Once a GFCI condition is detected, the thermostat will alarm GFCI.
- 1, 2, 3: Provides a delay before the GFCI alarm.
- OFF: Turns off the GFCI function.
Important: The GFCI setting is a safety-related function. Do not change this setting unless you understand the requirements of your installation and the operation of the thermostat.
This completes the Hidden Menu settings for the TTE-650G programmable floor heating thermostat.
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