1. Ifihan
This manual provides instructions for the installation, operation, and maintenance of your OJ Microline UWG4-4999 WiFi Touch Screen Programmable Thermostat. This thermostat is designed for electric radiant floor heating systems and features a built-in GFCI, dual sensing (air/floor), and dual voltage capabilities (120V/240V).
The UWG4-4999 offers remote control and monitoring via Android/iOS devices, an intuitive 7-day programming schedule, and an adaptive function for energy efficiency.
2. Alaye Aabo
ÌKÌLỌ̀: Ewu ìkọlù iná mànàmáná. Onímọ̀ ẹ̀rọ iná mànàmáná tó mọ̀ nípa rẹ̀ gbọ́dọ̀ ṣe iṣẹ́ rẹ̀ gẹ́gẹ́ bí ìlànà iná mànàmáná tó wà ní àdúgbò. Yọ agbára kúrò ní ibi tí a ti ń gé ẹ̀rọ náà kí o tó fi sori ẹ̀rọ tàbí kí o tó ṣe iṣẹ́ náà.
- Ensure power is OFF before wiring.
- This device contains a Class A GFCI for protection against ground faults. Test the GFCI regularly as per local codes.
- Do not install in locations exposed to direct water spray.
- Operating temperature range: +32 to +104°F (0 to +40°C).
3. Package Awọn akoonu
Daju pe gbogbo awọn paati wa ṣaaju ki o to bẹrẹ fifi sori:
- OJ Microline UWG4-4999 Thermostat
- Floor Sensọ
- Iṣagbesori skru
- Afowoyi Olumulo (iwe-ipamọ yii)
4. Eto ati fifi sori
4.1 Wiring aworan atọka
Refer to the following diagram for proper wiring connections. Ensure all connections are secure and comply with local electrical codes.

Image: Wiring diagram for the UWG4-4999 thermostat. It illustrates connections for Neutral (from power source), Hot (from power source), House Ground, and connections to the Heater. The diagram also shows the internal components and terminal block layout.
4.2 Fifi sori ti ara
- Ge asopọ agbara: Pa agbara si Circuit igbona ni panẹli ina akọkọ.
- Iṣagbesori: Mount the thermostat in a standard electrical box. Ensure the box is clean and free of debris.
- Asopọmọra: Connect the thermostat wires according to the wiring diagram. The thermostat supports dual voltage (120V/240V).
- Fifi sori ẹrọ sensọ ilẹ: Install the floor sensor cable in a conduit or directly into the floor, ensuring it is positioned correctly within the heated area. Connect the sensor wires to the designated terminals on the thermostat.
- Itẹmọọn to ni aabo: Ṣe aabo thermostat si apoti itanna nipa lilo awọn skru ti a pese.
- Asomọ oju oju: Attach the decorative faceplate.
- Atunṣe agbara: Restore power at the main electrical panel.
4.3 Oṣo oluṣeto akọkọ
Upon first power-up, the thermostat will guide you through an initial setup wizard on its 3.5" responsive touch color screen. This wizard will help configure basic settings such as date, time, temperature units, and heating mode.

Image: The OJ Microline UWG4-4999 thermostat's touch screen display. It shows the current time (Fri 3:29 PM), outdoor temperature (71°F), current room temperature (72°), and indicates "On Schedule" with the next change set for 74° at 6:00 PM. An "Adjust..." button is visible for manual override.
5. Awọn ilana Iṣiṣẹ
5.1 Fọwọkan iboju Interface
The thermostat features a 3.5" responsive touch color screen for direct control. Navigate menus and adjust settings by tapping the screen.

Image: A hand with a finger touching the "up" arrow on the OJ Microline UWG4-4999 thermostat's touch screen, indicating a temperature adjustment. The screen displays the current temperature (72°) and schedule information.
5.2 Ṣíṣètò Ìṣètò kan
The UWG4-4999 supports a 7-day, 4-event programmable schedule. This allows you to customize heating times and temperatures for different periods of the day and week to maximize comfort and energy savings.
- Access the "Heating Schedule" menu from the main screen.
- Yan ọjọ́(àwọn) tí o fẹ́ ṣètò.
- Set the desired time and temperature for each of the four events (e.g., Morning, Day, Evening, Night).
- Fi awọn ayipada rẹ pamọ.

Image: A smartphone screen showing the "Heating Schedule" interface for Monday. It lists several time slots (e.g., 6:00 AM, 9:00 AM, 12:00 PM, 1:00 PM, 6:00 PM, 11:00 PM) with corresponding set temperatures (e.g., 70°, 72°, 70°, 74°, 62°). This demonstrates the app's scheduling capabilities.
5.3 Wi-Fi Connectivity and Remote Control
Connect your thermostat to your home Wi-Fi network to enable remote control and monitoring via the OJ Microline app on your Android or iOS smartphone/tablet.
- Download the OJ Microline app from your device's app store.
- Follow the in-app instructions to connect your thermostat to your Wi-Fi network.
- Once connected, you can adjust settings, view energy usage, and manage schedules from anywhere.
The thermostat supports integration with Google Home and Amazon Alexa for voice control.

Image: The OJ Microline UWG4-4999 thermostat displayed next to logos for Google Home and Amazon Alexa, indicating its compatibility with these voice control platforms. A smartphone screen showing a heating schedule is also visible in the background.
5.4 Pataki Awọn ẹya ara ẹrọ
- Iṣe Adaṣe: The thermostat features an adaptive function that learns your home's heating patterns and adjusts run times to maintain set temperatures efficiently, reducing energy consumption.
- Titiipa ọmọ: Activate the child lock feature to prevent unauthorized changes to settings.
- Ipo isinmi: Use vacation mode to set a lower, energy-saving temperature for extended periods when you are away.
- Open Window Mode: This feature detects sudden drops in temperature (e.g., from an open window) and temporarily pauses heating to save energy.
- Power Logging: Access detailed energy usage reports directly on your PC or mobile device through the app.
6. Itọju
6.1 Ninu
Clean the thermostat's touch screen and casing pẹlu asọ, damp Aṣọ. Má ṣe lo àwọn ohun ìfọṣọ tàbí àwọn ohun èlò ìfọṣọ, nítorí pé wọ́n lè ba ojú ilẹ̀ jẹ́.
6.2 GFCI Igbeyewo
The built-in Class A GFCI should be tested monthly to ensure proper operation. Refer to local electrical codes for specific testing requirements.
- Press the "TEST" button on the thermostat. The heating should turn off.
- Press the "RESET" button. The heating should resume.
- If the GFCI does not trip or reset correctly, discontinue use and contact a qualified electrician.
7. Laasigbotitusita
| Isoro | Owun to le Fa | Ojutu |
|---|---|---|
| Iboju thermostat ti ṣofo. | Ko si agbara si thermostat. | Check circuit breaker. Ensure wiring is correct. |
| Ilẹ̀ kò gbóná. | Heating element issue, GFCI tripped, incorrect settings. | Check GFCI (press RESET). Verify schedule and set temperature. Consult an electrician if heating element is suspected. |
| Wi-Fi connection unstable or not connecting. | Incorrect Wi-Fi password, weak signal, router issue. | Re-enter Wi-Fi password. Move router closer or use a Wi-Fi extender. Restart router. |
| Kika iwọn otutu dabi pe ko pe. | Sensor issue, thermostat placement. | Ensure floor sensor is properly installed and connected. Avoid placing thermostat near drafts or heat sources. |
8. Imọ ni pato
| Ẹya ara ẹrọ | Sipesifikesonu |
|---|---|
| Awoṣe | UWG4-4999 |
| Brand | OJ Electronics |
| Voltage | 120V/240V AC |
| O pọju fifuye | 15 Amps (1800W @ 120V, 3600W @ 240V) |
| GFCI | Kilasi A (ipele irin ajo 5 mA) |
| Aijẹ | Dual Sensing (Air/Floor) |
| Floor Limit Range | +41 si +104°F (+5 si +40°C) |
| Ibaramu otutu Ibiti | +32 si +104°F (0 si +40°C) |
| Ifihan | 3.5" Responsive Touch Color Screen |
| Asopọmọra | Wi-Fi, compatible with Android/iOS app, Google Home, Amazon Alexa |
| Awọn iwe-ẹri | C-UL-us Listed, Certified for Wet Room installations |

Image: A detailed graphic showing the technical specifications and wiring diagram for the OJ Microline UWG4-4999 thermostat. It highlights dual voltage, maximum load, temperature ranges, Class A GFCI, and certifications (C-UL-us Listed).
9. Atilẹyin ọja ati Support
9.1 Limited Factory Warranty
The OJ Microline UWG4-4999 thermostat comes with a 3-Year limited factory warranty. Atilẹyin ọja yi ni wiwa awọn abawọn ninu awọn ohun elo ati iṣẹ ṣiṣe labẹ lilo deede.
For specific terms and conditions of the warranty, please refer to the documentation included with your product or visit the official OJ Electronics webojula.
9.2 Onibara Support
For technical assistance, troubleshooting, or warranty claims, please contact OJ Electronics customer support. Contact information can typically be found on the manufacturer's webaaye tabi ni apoti ọja.
Awọn orisun Ayelujara: Ṣabẹwo si OJ Electronics webojula for FAQs, additional documentation, and support contact details.





