WINTEMP Electric Tankless Water Heater KJU135 (3.5kW) User Manual

1. Pengenalan

This manual provides essential information for the safe and efficient installation, operation, and maintenance of your WINTEMP Electric Tankless Water Heater, Model KJU135 (3.5kW). This unit is designed to provide instant hot water for single-point-of-use applications, primarily sinks, without the need for a storage tank.

The WINTEMP KJU135 features self-adjusting temperature control, a digital display, and multiple safety protections, ensuring a continuous supply of hot water on demand.

Imej 1.1: Depan view of the WINTEMP KJU135 Electric Tankless Water Heater, showing the digital temperature display and control buttons.

2. Maklumat Keselamatan

AMARAN: Improper installation, adjustment, alteration, service, or maintenance can cause property damage, injury, or death. Read this manual thoroughly before installing or servicing this appliance.

• This appliance must be installed by a qualified electrician and plumber in accordance with all local and national electrical and plumbing codes.
• Do not operate this water heater if any part of it has been submerged in water. Immediately contact a qualified service technician to inspect the appliance and replace any part of the control system that has been submerged.
• Ensure the electrical supply matches the unit's requirements (3.5KW, 120V, 29A). Use a dedicated 1 x 30 Amp Double Pole (DP) breaker and 10# AWG wiring with ground.
• The unit is equipped with overheat protection, dry-heating protection, and electricity leakage protection functions to ensure user safety. Do not bypass or tamper dengan ciri-ciri keselamatan ini.
• This unit is designed for point-of-use applications such as sinks and is not intended for showering.

Imej 2.1: Selesaiview of the safety features integrated into the WINTEMP tankless water heater.

3. Persediaan dan Pemasangan

Proper installation is critical for the safe and efficient operation of your water heater. It is strongly recommended that installation be performed by a licensed professional.

3.1 Senarai Semak Pra-Pemasangan

• Keperluan Elektrik: Verify that your electrical system can support 3.5KW at 120 Volts, requiring a maximum amperage of 29A. A dedicated 1 x 30 Amp Double Pole (DP) circuit breaker and 10# AWG wiring with ground are mandatory.
• Sambungan Air: The unit requires a 1/2" NPT water connection for both inlet and outlet.
• Lokasi Pemasangan: Choose a suitable wall-mounted location, preferably under a sink, ensuring the unit is protected from freezing temperatures and direct sunlight. The unit dimensions are approximately 8.9” (W) x 7.7 ” (H) x 3.1” (D).
• Komponen yang Disertakan: Ensure all components are present: Water Heater, Rubber plug and screw for mounting, Operation and Installation instructions, and the external power cord.

3.2 Langkah Pemasangan

1. Pemasangan: Securely mount the water heater to a wall using the provided rubber plugs and screws. Ensure it is level and stable.
2. Sambungan Paip: Connect the cold water supply to the inlet (blue) and the hot water outlet (red) to your fixture using standard 1/2-inch NPT fittings. Ensure all connections are tight to prevent leaks.
3. Pendawaian elektrik: Connect the unit to the dedicated electrical circuit. The 1.2-meter power cord is equipped for easy connection. Follow the wiring diagram carefully, connecting the neutral, live, and ground wires to the appropriate terminals.
4. Water Flow Activation: Once plumbing is complete, slowly open the hot water faucet at the fixture to allow water to flow through the heater and purge any air from the system. Continue until a steady stream of water flows.
5. Hidupkan kuasa: After ensuring no leaks and all air is purged, turn on the dedicated circuit breaker.

Image 3.1: Installation diagram illustrating electrical and plumbing connections for the KJU135 model.

4. Arahan Operasi

The WINTEMP KJU135 is designed for user-friendly operation with its digital display and simple controls.

4.1 Permulaan Permulaan

• Ensure the unit is properly installed and filled with water (as per Section 3.2).
• Turn on the electrical power at the circuit breaker. The digital display will illuminate.
• Tekan butang kuasa (U) on the unit to activate it.

4.2 Pelarasan Suhu

• Use the '+' and '-' buttons on the front panel to adjust the desired water temperature. The digital display will show the set temperature.
• The unit features self-adjusting technology, which optimizes power consumption based on flow rate and desired temperature.
• Hot water will be available within approximately 3 seconds of activation.

Image 4.1: The tankless water heater provides instant hot water, saving time and water.

5. Penyelenggaraan

Regular maintenance ensures the longevity and optimal performance of your WINTEMP tankless water heater.

• Pemeriksaan Tahunan: It is recommended to have a qualified technician inspect the unit annually.
• Semak Kebocoran: Periodically inspect all water connections for any signs of leaks. Tighten connections if necessary.
• Pengudaraan Bersih: Faucet aerators can become clogged with sediment. Clean them regularly to maintain good water flow.
• Menyahkerak (jika perlu): In areas with hard water, mineral deposits can accumulate. If you notice reduced flow or heating efficiency, consult a professional for descaling procedures.
• Pembersihan Luaran: Bersihkan bahagian luar unit dengan lembut, damp kain. Jangan gunakan pembersih atau pelarut yang melelas.

6. Penyelesaian masalah

If you encounter issues with your water heater, refer to the following common troubleshooting steps. For problems not listed or if issues persist, contact customer support.

• No Hot Water / Insufficient Heat:
  • Check if the circuit breaker is tripped. Reset if necessary.
  • Ensure the unit is powered on and the desired temperature is set correctly.
  • Verify adequate water flow. The unit requires a minimum flow rate to activate heating.
  • Confirm the unit is not being used for applications beyond its capacity (e.g., showering).
• Kebocoran air:
  • Immediately turn off the water supply and electrical power to the unit.
  • Periksa semua sambungan paip untuk memastikan ia ketat.
  • If the leak originates from the unit itself, contact customer support.
• Paparan Digital Tidak Berfungsi:
  • Check the electrical supply and circuit breaker.
  • Ensure the unit is properly connected to power.

7. Spesifikasi

Image 7.1: Application guidance for KJU-135, illustrating performance based on regional inlet water temperatures.

8. Waranti dan Sokongan

WINTEMP provides a Tempoh jaminan 2 tahun untuk produk ini.

For any issues encountered during usage, or for warranty claims, please follow these steps:

1. Locate your order details.
2. Contact the Seller directly through the platform where the purchase was made.
3. Provide a clear description of your issue or question.

The seller will assist you with troubleshooting or guide you through the warranty process.