1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your EARUELETRIC K1H Series Digital LCD Thermostat. This thermostat is designed for precise temperature control in water heating, electric floor heating systems, and gas boilers, ensuring comfort and energy efficiency in your home or office. Please read this manual thoroughly before installation and use to ensure proper function and safety.
2. Package Contents
Upon opening the package, please verify that all items listed below are present and undamaged:
- 1 x EARUELETRIC K1H Series Thermostat
- 1 x Sensor probe (included only with electric floor heating models)
- Mounting Screws
- 1 x User Manual
Video: Unboxing and basic operation demonstration of the EARUELETRIC K1H Thermostat.
3. Specifications
The following table outlines the technical specifications for the K1H Series Thermostat:
| Feature | Specification |
|---|---|
| Type | Thermostat Temperature Controller |
| Material | Anti-flammable PC |
| Voltage | AC 90-240V, 50/60Hz |
| Max. Current Load | 3A (Plumbing/Resistive), 16A (Electric Heating) |
| Temperature Accuracy | ±1℃ |
| Temperature Setting Range | 5-60℃ |
| Work Environment | -5~50℃ |
| Power Consumption | <1W |
| Temperature Sensor | NTC |
| Display | LCD |
| Display Range | 0~50℃ |
| Certification | CE |
| Item Size | 86 x 86 mm (3.4 x 3.4 inches) |
Image: K1H Thermostat dimensions and technical indicators.
4. Product Overview
The K1H thermostat features a clear LCD display and intuitive buttons for easy operation. Below is a description of the display icons and physical components:
Image: K1H Thermostat display icons and their meanings.
Display Icons:
- Week Icon: Indicates the current day of the week.
- Room Temperature: Displays the current ambient room temperature.
- Period Icon: Shows the active programming period.
- Time Display: Shows the current time.
- Heating Icon: Indicates when the heating system is active.
- Mode Icon: Displays the current operating mode (e.g., Auto, Manual, ECO).
- Lock Icon: Indicates if the child lock function is enabled.
Button Functions:
- Power Button (⑂): Turns the thermostat on or off.
- ECO Button: Activates or deactivates energy-saving mode.
- Time Button (⏱): Enters timing settings.
- Up Button (▲): Increases values or navigates up.
- Down Button (▼): Decreases values or navigates down.
5. Installation
This product is designed for installation with a standard 86 control switch box and complies with EU regulations. Professional installation is recommended.
Image: Step-by-step diagram for K1H Thermostat installation.
Installation Steps:
- Prepare Wall: Install screw anchors with a spacing of 60mm on the wall.
- Separate Panels: Use a screwdriver to carefully separate the upper and lower panels of the thermostat.
- Route Wires: Pass the necessary electrical wires through the back panel, ensuring approximately 20 cm of wire length is available for connection.
- Fix Bottom Panel: Secure the bottom panel of the thermostat to the wall using the provided screws.
- Attach Top Panel: Align the top panel with the bottom panel, engaging the buckle at a 30-degree angle, then gently push to secure it in place.
6. Wiring Diagrams
Ensure all wiring is performed by a qualified electrician and in accordance with local electrical codes. Incorrect wiring can cause damage to the thermostat or heating system and pose a safety hazard.
6.1. Gas Boiler Wiring (3A Model - KC01RH-3A)
This diagram applies to gas boiler systems using the 3A model with a built-in temperature sensor.
Image: Wiring diagram for the 3A K1H thermostat connected to a gas boiler. Terminals 1 and 2 are for Live (L) and Neutral (N) power input. Terminals 6 and 7 are for the Output Passive connection to the gas boiler.
6.2. Water Heating Wiring (3A Model - KC01RH-3A)
This diagram applies to water heating systems using the 3A model with a built-in temperature sensor.
Image: Wiring diagram for the 3A K1H thermostat connected to a water heating system. Terminals 1 and 2 are for Live (L) and Neutral (N) power input. Terminals 6 and 7 are for the Dry Contact connection (NO/NC) to the water heating system.
6.3. Electric Heating Wiring (16A Model - KC01H-16A)
This diagram applies to electric heating systems using the 16A model with an external temperature sensor. This model can also control water pumps and electric valves.
Image: Wiring diagram for the 16A K1H thermostat connected to an electric heating device. Terminals 1 and 2 are for Live (L) and Neutral (N) power input. Terminals 3 and 4 are for the Electric Heating Device (L1, N1). Terminals 6 and 7 are for the external Temperature Sensor (NTC).
7. Operation
7.1. Basic Operations
- Power On/Off: Press the ⑂ (Power) key to turn the thermostat on or off.
- Energy Saving (ECO) Mode: Press the ECO key to enter energy saving mode. In this mode, the temperature cannot be adjusted directly.
- Exit ECO Mode: While in energy saving mode, press any key to automatically exit this mode.
- Timing Setting: Press the ⏱ (Time) key to enter the timing setting interface. Use the ▲ (Up) and ▼ (Down) keys to adjust the time.
- Child Lock: To enable or disable the child lock, press and hold the ⏱ (Time) and ▼ (Down) keys simultaneously for 5 seconds. A lock icon will appear/disappear on the display.
7.2. Operating Modes
The thermostat supports the following operating modes:
- Energy-saving mode: A pre-set mode for reduced energy consumption. The temperature value for this mode can be modified in the advanced options (Option 8).
- Timing mode: Allows scheduling of temperature settings based on time periods.
- Manual mode: Allows direct adjustment of the target temperature.
7.3. Advanced Option Settings
To access advanced settings, follow these steps:
- Ensure the thermostat is in the shutdown state.
- Press and hold the ECO key and the ⑂ (Power) key simultaneously for 5 seconds to enter the advanced option setting menu.
- Press the ECO key to cycle through the available options.
- Use the ▲ (Up) and ▼ (Down) keys to adjust the value for the selected option.
- Press the ⑂ (Power) key to exit the advanced option settings.
Image: Table detailing advanced option settings for the K1H Thermostat.
Below is a table of the advanced options:
| No. | Advanced Option Name | Default | Range |
|---|---|---|---|
| 1 | Temperature Adjustment | 0℃ | -5~5℃ |
| 2 | Temperature Tolerance | 1℃ | -0.5~5℃ |
| 3 | Energy Saving Temperature | 20℃ | 5~35℃ |
| 4 | High Temperature Protection | 60℃ | 35~90℃ |
| 5 | Low Temperature Protection | 1 | 0:off 1:on |
| 6 | NTC Select | IN | 0:IN 1:OUT 2:ALL |
8. Maintenance
To ensure the longevity and optimal performance of your thermostat, follow these simple maintenance guidelines:
- Cleaning: Wipe the thermostat's surface with a soft, dry cloth. Do not use abrasive cleaners, solvents, or chemical sprays, as these can damage the display or casing.
- Avoid Obstructions: Ensure that the thermostat's vents are not blocked by furniture, curtains, or other objects, as this can affect temperature readings.
- Regular Checks: Periodically check the wiring connections to ensure they are secure. If any loose connections are found, consult a qualified electrician.
9. Troubleshooting
If you encounter issues with your thermostat, please refer to the following common problems and solutions:
- Thermostat not powering on: Check the main power supply to the thermostat and ensure all wiring connections are secure.
- Incorrect temperature reading: Ensure the thermostat's vents are not obstructed. If an external sensor is used, check its connection and placement. Consider adjusting the 'Temperature Adjustment' or 'Temperature Tolerance' in advanced settings if a consistent offset is observed.
- Heating not activating/deactivating: Verify the operating mode (Manual, Timing, ECO) and target temperature settings. Check the wiring to the heating system. If using a gas boiler, ensure it is receiving the signal from the thermostat.
- Child lock engaged unexpectedly: Refer to the 'Child Lock' section in Basic Operations to disable it.
If the problem persists after attempting these solutions, please contact customer support.
10. Warranty and Support
Your EARUELETRIC K1H Series Thermostat comes with a manufacturer's warranty. For specific warranty terms and conditions, please refer to the documentation provided at the time of purchase or contact the seller directly. For technical support, troubleshooting assistance, or inquiries about replacement parts, please reach out to the seller or EARUELETRIC customer service.
Contact Information: Please refer to your purchase receipt or the seller's store page for the most up-to-date contact details.