BHT-9000 Smart Knob Thermostat User Guide
Welcome
Welcome to the BHT-9000 Smart Knob Thermostat. This guide provides information for Water Heating, Boiler, and Electric Heating systems.
Please confirm that this product is suitable for your heating equipment before installation. For safe and proper use, please adhere to the following:
- Ensure power is turned off before installation or maintenance.
- Strictly follow the wiring diagram for installation.
- Confirm fasteners are suitable for the product when mounting to the wall.
- Do not pull cables too hard to avoid product damage.
- If using hard plastic wire, bend it to an appropriate angle beforehand.
- Professional installation is recommended.
- Contact after-sales service for equipment failure; do not attempt self-repair.
- After installation, refer to this manual to ensure normal and safe use, and keep the manual properly.
In the Box
- Thermostat: 1pc
- Screws: 2pc
- User Guide: 1pc
- QC Passed: 1pc
- Floor Sensor: 1pc (Optional)
About Your Thermostats
The BHT-9000 range is designed to control electric underfloor, water heating, or water/gas boiler systems. These units are suitable for commercial, industrial, civil, and domestic properties.
Model Definition
- GA: Water heating, 5A
- GB: Electric floor Heating, 16A
- GC: Water/Gas Boiler, 5A
- P: Weekly Programmable
- W: Wifi
- L: Backlight
- N: Modbus Communication
- S2: Both internal sensor and floor external sensor
For example: BHT-9000 GCLW
Features
On Appearance
- LED display with a friendly interface and LED matrix light for simple, energy-saving display that protects your eyes.
- Touch buttons for simple operation.
- Ultra-thin embedded panel with a visible thickness above the wall of only 12.4mm, fitting perfectly into all kinds of walls.
- Frameless acrylic panel design, simple and elegant.
- Classic black/white color scheme, seamlessly integrated.
- Compatible with standard 86mm square cassettes and 60mm European cassettes, meeting all installation environments.
- Interlock connection for easy installation.
On Functionality
- Rich function options, including Modbus, WIFI, and keycard, to meet diverse needs.
- Strict temperature control accuracy (±1°C) to provide desired warmth.
- Power-off protection to safely save all settings.
- Preset adjustment of 5+1+1 mode in a week, with programmable settings for 6 time periods per day, promoting green energy saving, lower costs, and intelligent environmental protection.
- Supports the creation of product local groups/shares for unlimited centralized control of product numbers and multi-terminal control.
- Perfect integration with Tmall Genie, Amazon Echo, and Google Home for a full voice control experience.
Technical Data
| Parameter | Specification |
|---|---|
| Power Supply | 95 ~ 240 VAC, 50~60 Hz |
| Current Load | 5A (water heating, water/gas boiler), 16A (electric heating) |
| Sensor | NTC3950, 10K |
| Accuracy | ±1°C |
| Set Temp. Range | 5-35°C |
| Room Temp. Range | 5-70°C |
| Display Temp. Range | 5 ~ 70°C |
| Ambient Temp. | 0~ 45°C |
| Ambient Humidity | 5 ~ 95% RH (Non Condensing) |
| Storage Temp. | -5~ 45°C |
| Power Consumption | < 1.5W |
| Timing Error | < 1% |
| Shell Material | PC + ABS (Fireproof) |
| Installation Box | 86 * 86mm Square or European 60mm Round Box |
| Wire Terminals | Wire 2 x 1.5 mm² or 1 x 2.5 mm² |
| Protection Class | IP20 |
| Buttons | Capacitive Touch Buttons |
Dimensions
Diagram showing dimensions in millimeters. Key measurements include: Width 88.0mm, Height 46.0mm, Depth 46.9mm, Mounting hole spacing 60.0mm ±1.5mm, Front panel height 13.1mm, Knob diameter Ø24.0mm, Body depth 38.3mm, Total depth 49.0mm, and a rear projection of 130.0mm with a 92.0mm width and 58.5mm height mounting plate.
Installation
Your thermostat is suitable for installation within a standard 86mm pattress box or a European 60mm pattress box.
Installation Steps
- Separate the upper and lower boards.
- Connect the power cord and device cord.
- Fix the screws on the cassette.
- Fasten the panel to the mounting plate.
- Fix the screws on the cassette.
Before Wiring and Install
Important Safety Precautions:
- Read these instructions carefully. Failure to follow them could damage the product or cause a hazardous condition.
- Check the ratings given in the instructions and on the product to ensure suitability for your application.
- Installer must be a trained, experienced service technician.
- After installation is complete, check product operation as provided in these instructions.
Caution: Electrical Shock or Equipment Damage Hazard. Can shock individuals or short equipment circuitry. Disconnect power supply before installation.
Wiring Diagrams
Diagrams illustrate wiring for different models:
- GA (Water Heating): Shows connections for AC 95~240V (L, N) and NTC sensor. Protection Class IP20.
- GB (Electric Heating): Shows connections for AC 95~240V (L, N), NTC sensor, and LOAD terminals (L1, N1). Protection Class IP20.
- GC (Water/Gas Boiler): Shows connections for AC 95~240V (L, N) and NTC sensor. Protection Class IP20.
Note: GA is for water heating; GB is for electric heating; GC is for water/gas boiler; NTC and Modbus are optional.
Operation
Power On/Off
Press the knob to turn the thermostat on/off.
Manual & Programmable Modes
Touch the mode icon [Mode Button] to switch between manual mode (indicated by Manual) and programmable mode (indicated by Programmable).
Setting Temperature
In programming mode, temperature and time settings are locked. To adjust, first switch to manual mode by pressing the [Display Button]. In manual mode, turn the knob to set the desired temperature.
Adjusting/Setting the Clock
Press the clock icon [Clock Button] to set the minute, hour, and weekday. Adjust values by turning the knob. Press the [Clock Button] again to confirm and exit.
Locking Your Thermostat
Press and hold the [Display Button] and the [Lock Button] for 5 seconds to lock/unlock your thermostat. You can select full lock or half lock in the advanced options (item 3).
Adjusting/Setting the Programmable Schedules
Press the schedule icon [Schedule Button] four times. The minutes of the time will flash; set them using the knob. Press the [Schedule Button] again, the hour will flash; set the hour by turning the knob. Press the [Schedule Button] again, the temperature setting will flash; set the temperature by turning the knob. This completes the setting for period 1. Repeat this process for periods 2, 3, 4, 5, and 6. Press the [Schedule Button] once more to enter Saturday schedule settings (indicated by 'SAT' on screen). Repeat the process for Sunday schedule settings. Press the [Schedule Button] once more to confirm and exit.
Default Settings for Program Schedule
A separate schedule can be set for weekdays (Mon-Fri) and weekends (Sat or Sun).
| Time Display | MON.-FRI. (shows on screen) | SAT. (shows on screen) | SUN. (shows on screen) | |||
|---|---|---|---|---|---|---|
| TIME | TEMP. | ON TIME | TEMP. | ON TIME | TEMP. | |
| Period 1 | 6:00~8:00 | 20°C | 6:00~8:00 | 20°C | 6:00~8:00 | 20°C |
| Period 2 | 8:00~11:30 | 15°C | 8:00~11:30 | 20°C | 8:00~11:30 | 20°C |
| Period 3 | 11:30~13:00 | 15°C | 11:30~13:00 | 20°C | 11:30~13:00 | 20°C |
| Period 4 | 13:30~17:00 | 15°C | 13:30~17:00 | 20°C | 13:30~17:00 | 20°C |
| Period 5 | 17:00~22:00 | 22°C | 17:00~22:00 | 20°C | 17:00~22:00 | 20°C |
| Period 6 | 22:00~6:00 | 15°C | 22:00~6:00 | 15°C | 22:00~6:00 | 15°C |
Checking the Temperature of Floor Sensor
Press and hold the up arrow [Up Arrow Button] for 5 seconds to display the temperature of the floor sensor. If no external sensor is connected, the thermostat will display "Er" (Error). Note: Do not use third-party external sensors, as the temperature reading may be incorrect.
Setting the Functions and Options
During power off, press and hold the [Display Button] and the [Mode Button] for 8 seconds to access system functions. Then press the [Mode Button] to scroll through available functions and use the knob to change options. All settings are confirmed automatically.
System Functions and Options
| Code | Function | Setting and Options | Default |
|---|---|---|---|
| 1 | Temperature compensation | -9 to 9 °C | -3 |
| 2 | Deadzone Temp. | 1-5°C | 1 |
| 3 | Button Locking | 01: All buttons are locked except power button. 01: All buttons are locked. | 1 |
| 4 | Sensor type | In: Internal Sensor (to control the temp.) Ou: External Sensor (to control the temp.) AL: Internal&External Sensor (Internal sensor to control the temp., external sensor to limit the temp.) | AL |
| 5 | Min. Set Temp. | 5-15°C | 5 |
| 6 | Max. Set Temp. | 15-45°C | 35 |
| 7 | Low temp. protection setting. | 0-10°C | 0 |
| 8 | High temp. protection setting. | 25-70°C | 50 |
| 9 | Energy saving Mode | 00: OFF, 01: ON | 0 |
| 10 | Heat Energy saving Temp. | 1-30°C | 20 |
| 11 | Window opening detection | 00: off, 01: on | 0 |
| 12 | Window opening detection temperature | 2-4°C | 2 |
| 13 | Window opening detection time | 2-30mins | 20 |
| 14 | Window opening detection cycle time | 10-60mins | 0 |
| 15 | °C/°F | 0: °C, 1: °F | 0 |
| 16 | Reset | 00: No factory reset; 01: Factory reset | 0 |
| 17 | Standby brightness | 4-99 | 20 |
| 18 | Backlight standby | 00: off, 01: on | 0 |
| 19 | Version number | U2 |
About Wi-Fi Connection
Before using your Wi-Fi thermostat for the first time, configure the Wi-Fi signal and settings using your smartphone or tablet to enable communication between devices.
Step 1: Download Your APP
Search for "Smartlife" in the Apple Store or Google Play, or scan the QR code provided (Figure 1-2). Complete account registration and installation according to the APP's guidance.
[Figure 1-1: App download screen. Figure 1-2: iOS app store search. Figure 1-3: Android app store search.]
Step 2: Connect the Thermostat
Method 1: Bluetooth Network Distribution
Turn on your mobile phone's Bluetooth. Set the thermostat to the Wi-Fi enabled state (press and hold the [Mode Button] for 8 seconds when the thermostat is off). Follow the tutorial to complete connection and settings.
[Figures 2.1-2.6: Illustrating Bluetooth connection steps.]
Method 2: Scan the QR Code to Configure Network
Follow the guide using the QR code for connection and setup.
[Figures 2.2 & 2.7-2.8: Illustrating QR code network configuration.]
Method 3: Ordinary Distribution Network Guidance
Follow the steps involving device reset and selecting the Wi-Fi network.
[Figures 2.3, 2.4, 2.7.1: Illustrating ordinary network distribution.]
Network Distribution Modes
EZ Mode
When the thermostat is off, press and hold the [Mode Button] until the thermostat screen flashes quickly and displays the [Wi-Fi Icon - Fast Blink] icon. Then, operate according to the provided figures (Fig 2.9-Fig 2.13).
[Figures 2.9-2.13: Illustrating EZ Mode setup.]
AP Mode
When the thermostat is off, press and hold the [Mode Button] until the thermostat screen flashes slowly and the [Wi-Fi Icon - Slow Blink] icon is displayed. (If the [Wi-Fi Icon - Static] icon appears, continue pressing the [Mode Button] until the screen flashes slowly and displays the [Wi-Fi Icon - Slow Blink] icon). Then, operate according to the provided figures (Fig 2.14-Fig 2.19).
[Figures 2.14-2.19: Illustrating AP Mode setup.]
APP Operation Interface Description
The app interface allows for adjusting temperature, changing device names, and setting weekly programming schedules. It also displays current and target temperatures, floor temperature, and sensor types.
[Screenshots showing app interface elements like "Add Device", "More settings", "Thermostat", "Floor temp.", "Sensor type", etc.]
Simple Exception Handling
| No. | Phenomenon | Handling |
|---|---|---|
| 1 | Power is on but without display. Without output but display works. | Check if the terminals between LCD panel and Power Unit Box are loose. Use a new LCD panel or new Power Unit Box to replace the old one. |
| 2 | Room Temp. Is a little different from the actual. | Do temperature calibration in item 1 of high senior options. |
Service
Your thermostat carries a 24-month warranty from the date of purchase. Service outside the warranty period may incur a charge. For more details, please contact Beca directly.
