1. 서론
This manual provides essential information for the safe and efficient operation, installation, and maintenance of your Ranein Electric Mini Tank Water Heater, Model WarmCube 8. Please read this manual thoroughly before installation and use, and retain it for future reference.
The Ranein WarmCube 8 is an 8-gallon point-of-use electric water heater designed to provide instant hot water for various applications, including kitchens, bathrooms, and RVs. It operates on 120V with a 1440W heating element.

Figure 1: Ranein WarmCube 8 Electric Mini Tank Water Heater. This image shows the compact, white unit with a central control knob and the Ranein logo.
2. 안전 정보
경고: 이 안전 지침을 따르지 않을 경우 재산 피해, 심각한 부상 또는 사망에 이를 수 있습니다.
- Ensure the unit is installed by a qualified professional in accordance with all local plumbing and electrical codes.
- 온수기가 손상되었거나 오작동하는 경우 작동하지 마십시오.
- 유지관리나 서비스를 수행하기 전에는 항상 전원을 분리하세요.
- The unit is equipped with dry-burn protection and an advanced leakage prevention system (auto-cutoff in <0.1s) for enhanced safety. However, regular inspection is recommended.
- The maximum operating temperature is 185°F (85°C). Exercise caution to prevent scalding.
- The unit has an IPX4 waterproof rating, indicating resistance to splashing water, but it should not be submerged.
- 감전을 방지하려면 올바르게 접지하십시오.
- 압력 방출 밸브를 막지 마십시오.

Figure 2: Multiple Protection Features. This diagram highlights the water heater's safety features, including high temperature resistance, corrosion resistance, high pressure resistance, dry burning resistance, IPX4 waterproof rating, and leakage resistance.
3. 제품 오버view
The Ranein WarmCube 8 is designed for efficiency and durability, featuring:
- 순간 온수: 8-gallon capacity provides hot water on demand, ideal for point-of-use applications.
- 내구성 있는 구조: Equipped with a stainless steel inner tank for corrosion resistance and extended lifespan.
- 효율적인 난방: 1440W heating element ensures rapid water heating.
- 고급 단열: Triple-layer design with enamel coating, high-density insulation foam, and reinforced decarburized steel plate for superior heat preservation and reduced energy loss.
- 조절 가능한 온도 조절 장치: Precision control for desired water temperature up to 185°F (85°C).
- 안전 기능: Includes high-temperature resistance, high-pressure resistance (up to 1.0 MPa), dry-burn protection, IPX4 waterproof rating, and an advanced leakage prevention system.

Figure 3: Key Features Summary. This graphic illustrates the water heater's 24-hour timer function, 1440W high power, multiple protection systems, 55-145°F temperature range, easy installation options, 3D foam insulation, and energy-saving design.

Figure 4: 3-Layer Inner Liner. This image shows a cross-section of the tank, detailing the enamel layer, density layer, and decarburized steel plate layer, which contribute to its durability and heat preservation.
4. 설정 및 설치
The Ranein WarmCube 8 offers versatile installation options, including under-sink, wall-mounted, or floor-mounted setups. Ensure adequate clearance and proper plumbing and electrical connections.
4.1 사이트 선택
- 유지보수가 용이하고 동결로부터 보호되는 장소를 선택하십시오.
- Ensure the mounting surface (if wall-mounted) can support the weight of the unit when full (approximately 8 gallons of water + unit weight).
- Verify sufficient space for installation and future servicing.

Figure 5: Under-Sink Space Confirmation. This image illustrates the minimum clearance required for under-sink installation: minimum 5 inches above the unit, and minimum 2 inches on the sides.
4.2 배관 연결
- 냉수 유입구를 온수기의 지정된 포트에 연결하십시오.
- Connect the hot water outlet to your fixture's hot water line.
- Install a temperature and pressure relief (T&P) valve as required by local codes.
- Flush the tank with water before connecting to power to remove any air and ensure no leaks.
4.3 전기 연결
- The unit operates on a standard 120V outlet. Ensure the circuit can handle the 1440W load.
- Plug the water heater into a properly grounded electrical outlet.

Figure 6: Multiple Installation Options. This image displays the water heater installed under a sink and mounted on a wall, demonstrating its flexibility for various spaces.
5. 사용 설명서
Once installed and filled with water, the Ranein WarmCube 8 is ready for operation.
5.1 초기 시작
- Ensure the tank is completely filled with water before plugging in the unit. Open a hot water faucet to allow air to escape until water flows steadily.
- Plug the unit into a grounded 120V outlet. The heating indicator light will illuminate.
5.2 온도 조절
The water heater features a precision adjustable thermostat. Use the control knob on the front of the unit to set your desired water temperature.
- 손잡이를 시계 방향으로 돌려 온도를 높입니다.
- Turn the knob counter-clockwise to decrease the temperature or turn the unit off.
- The temperature range is typically 55°F to 145°F (13°C to 63°C), with a maximum internal temperature capability of 185°F (85°C).

Figure 7: Temperature Knob Adjustment. This image shows the control knob and suggests optimal temperatures for different uses: 107°F for washing dishes, 104°F for washing vegetables, 98°F for brushing teeth, and 89°F for washing face.
5.3 매일 사용
The unit will automatically heat water to the set temperature and maintain it. Hot water will be available instantly at your point of use.
6. 유지관리
정기적인 유지보수는 최적의 성능을 보장하고 온수기의 수명을 연장시켜 줍니다.
- 연간 세척: Drain and flush the tank annually to remove sediment buildup. Disconnect power before draining.
- T&P Valve Check: Test the temperature and pressure relief valve at least once a year by lifting the lever. Ensure water flows freely and the valve reseats properly.
- 외부 청소: 광고로 외부를 청소하세요amp 천. 연마성 세척제는 사용하지 마십시오.
- 점검: Periodically inspect for any signs of leaks, corrosion, or damage to the power cord.
7. 문제 해결
일반적인 문제와 해결 방법은 다음 표를 참조하세요.
| 문제 | 가능한 원인 | 해결책 |
|---|---|---|
| 뜨거운 물이 없습니다 | No power; thermostat set too low; tripped breaker; heating element failure. | Check power connection and breaker; adjust thermostat; contact qualified technician for element replacement. |
| 물이 충분히 뜨겁지 않음 | Thermostat set too low; excessive hot water demand; sediment buildup. | Increase thermostat setting; allow time for recovery; flush tank to remove sediment. |
| 물이 새다 | Loose connections; faulty T&P valve; tank rupture. | Tighten connections; replace T&P valve; contact qualified technician for tank issues. |
| 시끄러운 작동 | 수조에 침전물이 쌓였습니다. | Flush tank to remove sediment. |
이러한 해결 방법을 시도한 후에도 문제가 지속되면 고객 지원팀에 문의하세요.
8. 사양
| 특징 | 세부 사항 |
|---|---|
| 상표 | 라네인 |
| 모델 번호 | RC80G-W |
| 스타일 | WarmCube 8 |
| 용량 | 8갤런 |
| 권tage | 120V |
| 힘 | 1440와트 |
| 최대 온도 | 화씨 185도(섭씨 85도) |
| 제품 치수(폭 x 높이) | 17.32인치 x 17.32인치 |
| 품목 무게 | 28.2파운드 |
| 장착 유형 | Wall, Floor, Under-sink |
| 방수 등급 | IPX4 |
| 내부 탱크 재질 | 스테인리스 스틸 |
| 포함된 구성 요소 | 온수기 |

Figure 8: Product Parameters. This image provides a visual representation of the water heater's dimensions and a table summarizing key specifications including capacity, voltage, power, max water pressure, weight, amperage, and waterproof grade.
9. 보증 및 지원
For warranty information and customer support, please refer to the documentation included with your product or visit the official Ranein web사이트. 보증 청구를 위해 구매 증빙 자료로 구매 영수증을 보관하세요.
For technical assistance or service inquiries, please contact Ranein customer service.





