1. Ifihan
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. Alaye Aabo
WARNING: Failure to follow these safety instructions could result in property damage, serious injury, or death.
- Ensure the unit is installed by a qualified professional in accordance with all local plumbing and electrical codes.
- Ma ṣe ṣiṣẹ ẹrọ igbona omi ti o ba bajẹ tabi ti ko ṣiṣẹ.
- Ge asopọ agbara nigbagbogbo ṣaaju ṣiṣe eyikeyi itọju tabi iṣẹ.
- 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.
- Rii daju didasilẹ to dara lati ṣe idiwọ mọnamọna itanna.
- Ma ṣe dènà àtọwọdá iderun titẹ.

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. Ọja Ipariview
The Ranein WarmCube 8 is designed for efficiency and durability, featuring:
- Omi Gbona Lẹsẹkẹsẹ: 8-gallon capacity provides hot water on demand, ideal for point-of-use applications.
- Ikole ti o tọ: Equipped with a stainless steel inner tank for corrosion resistance and extended lifespan.
- Imudara Alapapo: 1440W heating element ensures rapid water heating.
- Idabobo to ti ni ilọsiwaju: Triple-layer design with enamel coating, high-density insulation foam, and reinforced decarburized steel plate for superior heat preservation and reduced energy loss.
- Òtútù Títúnṣe: Precision control for desired water temperature up to 185°F (85°C).
- Awọn ẹya Aabo: 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. Eto ati fifi sori
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 Aye Yiyan
- Yan ibi ti o rọrun lati wa fun itọju ati aabo lati awọn iwọn otutu ti o tutu.
- 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 Plumbing Awọn isopọ
- Connect the cold water inlet to the designated port on the water heater.
- Connect the hot water outlet to your fixture's hot water line.
- Fi fáàfù ìgbóná àti ìfúnpá (T&P) sí i gẹ́gẹ́ bí àwọn kódì agbègbè ṣe béèrè.
- Flush the tank with water before connecting to power to remove any air and ensure no leaks.
4.3 Electrical Awọn isopọ
- 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. Awọn ilana Iṣiṣẹ
Once installed and filled with water, the Ranein WarmCube 8 is ready for operation.
5.1 Ibẹrẹ Ibẹrẹ
- 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 Atunṣe iwọn otutu
The water heater features a precision adjustable thermostat. Use the control knob on the front of the unit to set your desired water temperature.
- Tan bọtini si ọna aago lati mu iwọn otutu pọ si.
- 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 Lojoojumọ
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. Itọju
Regular maintenance ensures optimal performance and extends the lifespan of your water heater.
- Ṣiṣan Ọdọọdun: 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.
- Ode Ninu: Nu ode pẹlu ipolowoamp asọ. Maṣe lo awọn afọmọ abrasive.
- Ayewo: Periodically inspect for any signs of leaks, corrosion, or damage to the power cord.
7. Laasigbotitusita
Tọkasi tabili atẹle fun awọn ọran ti o wọpọ ati awọn ojutu wọn.
| Isoro | Owun to le Fa | Ojutu |
|---|---|---|
| Ko si omi gbona | No power; thermostat set too low; tripped breaker; heating element failure. | Check power connection and breaker; adjust thermostat; contact qualified technician for element replacement. |
| Omi ko gbona to | Thermostat set too low; excessive hot water demand; sediment buildup. | Increase thermostat setting; allow time for recovery; flush tank to remove sediment. |
| Omi jijo | Loose connections; faulty T&P valve; tank rupture. | Tighten connections; replace T&P valve; contact qualified technician for tank issues. |
| Iṣẹ ṣiṣe ariwo | Erofo buildup ni ojò. | Flush tank to remove sediment. |
Ti iṣoro naa ba wa lẹhin igbiyanju awọn iṣeduro wọnyi, jọwọ kan si atilẹyin alabara.
8. Awọn pato
| Ẹya ara ẹrọ | Ẹ̀kúnrẹ́rẹ́ |
|---|---|
| Brand | Ranein |
| Nọmba awoṣe | RC80G-W |
| Ara | WarmCube 8 |
| Agbara | 8 galonu |
| Voltage | 120V |
| Agbara | 1440W |
| Iwọn otutu ti o pọju | 185°F (85°C) |
| Awọn iwọn Ọja (W x H) | 17.32" x 17.32" |
| Iwọn Nkan | 28.2 iwon |
| Iṣagbesori Iru | Wall, Floor, Under-sink |
| Mabomire Rating | IPX4 |
| Ti abẹnu ojò elo | Irin ti ko njepata |
| Awọn irinše to wa | Omi igbona |

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. Atilẹyin ọja ati Support
For warranty information and customer support, please refer to the documentation included with your product or visit the official Ranein webojula. Tọju iwe-ẹri rira rẹ bi ẹri rira fun awọn iṣeduro atilẹyin ọja.
For technical assistance or service inquiries, please contact Ranein customer service.





