Ranein 電気式タンクレス給湯器、14kW 240V、モデル RE14K - 取扱説明書

1. はじめに

This manual provides essential information for the safe and efficient installation, operation, and maintenance of your Ranein RE14K Electric Tankless Water Heater. Please read this manual thoroughly before installation and use, and retain it for future reference.

The Ranein RE14K is a 14 kW, 240V on-demand instant water heater designed for residential whole-house shower applications. It features an LED temperature display and a compact, space-saving design. Key features include:

• エネルギー効率: Up to 99% thermal efficiency, saving up to 60% on heating costs compared to tank-type heaters. No preheating required.
• 強力なパフォーマンス: Provides endless hot water with a flow rate up to 3.6 GPM, suitable for 2-3 usage points simultaneously.
• 簡単な操作: Features knob controls and an LED display for easy temperature adjustment from 86°F to 131°F in 1°F increments.
• 安全機能: Incorporates leakage protection, overheat protection, and automatic shutdown. Heating elements are separated from water to prevent scale buildup.

2. 安全情報

重要： Installation must be performed by a qualified electrician and plumber in accordance with all local and national electrical and plumbing codes. Failure to do so may result in property damage, serious injury, or death.

• Ensure the water heater is sized correctly for your hot water needs.
• Verify your electrical infrastructure can accommodate the power supply requirements (14 kW, 240V, 1 x 60 Amp 回路ブレーカー）。
• Do not install the unit outdoors or in areas exposed to weather.
• ユニットを子供の手の届かない場所に保管してください。
• A mandatory grounding wire must be connected for safety.
• Heating elements are separated from water to prevent scale buildup and ensure longevity.
• The unit includes leakage protection, overheat protection, and automatic shutdown features.

3. セットアップとインストール

3.1 インストール前のチェック

Before beginning installation, confirm the following requirements:

• 力： 14 kW, 240 Volts.
• 遮断器： 1×60 Amp double-pole breaker required.
• ワイヤゲージ： 6 AWG (American Wire Gauge) cable required.
• 水道接続: 1/2" NPT.
• ユニット寸法: Approximately 10.7" x 14.25" x 3.22".

Ensure your home's electrical panel has sufficient space and capacity for the required breaker.

3.2 ユニットの取り付け

The compact design allows for flexible installation. Ensure adequate clearance around the unit for safety and maintenance. Typically, 15 inches above and 12 inches to the side are recommended clearances.

Use the provided mounting brackets and hardware. A template may be included in the packaging to assist with drilling holes for precise placement.

3.3配管接続

The unit has clearly marked inlet (blue) and outlet (red) ports for water connections. Use 1/2" NPT fittings. It is highly recommended to install isolation valves on both the hot and cold water lines for future servicing.

• Connect the cold water supply line to the blue "INLET" port.
• Connect the hot water output line to the red "OUTLET" port.
• Use Teflon tape on all threaded metal-to-metal connections to ensure a watertight seal.

3.4電気接続

Before making any electrical connections, ensure the main power supply to the circuit breaker panel is turned OFF. The Ranein RE14K requires a 240V, 60 Amp double-pole circuit breaker and 6 AWG wiring.

• Remove the front cover of the water heater to access the wiring terminals.
• Connect the 6 AWG wires from the 60 Amp double-pole breaker to the designated terminals inside the unit.
• Ensure a mandatory grounding wire is properly connected.
• すべての接続をしっかりと固定します。
• Replace the front cover once wiring is complete.

3.5 Initial Startup and Flushing

Before turning on the electrical power, ensure all plumbing connections are secure and open the cold water supply valve. Run water through the hot water faucets for at least one minute to purge any air from the system. This prevents damage to the heating elements.

4. 操作手順

Once installed and flushed, your Ranein RE14K water heater is ready for operation.

4.1 温度制御

• 電源オン/オフ: Click the control knob to turn the unit on or off.
• 温度調整: Rotate the knob to adjust the desired water temperature. The temperature range is 86°F to 131°F (30°C to 55°C), adjustable in 1°F increments.
• スイッチユニット: To switch between Fahrenheit (°F) and Celsius (°C) display, press and hold the knob for 3 seconds.
• The LED display will show the set temperature and other operational data.

4.2 Usage Points

With a flow rate of up to 3.6 GPM, the RE14K is suitable for providing hot water to 2-3 usage points simultaneously, such as a shower and a sink, or two sinks.

5. メンテナンス

The Ranein RE14K is designed for low maintenance. The heating elements are separated from the water flow, which helps prevent scale buildup and corrosion, extending the unit's lifespan.

• Regularly inspect water connections for any signs of leakage.
• Ensure the area around the water heater remains clear of obstructions for proper ventilation.
• If the unit is to be left unused for an extended period in freezing temperatures, ensure proper winterization procedures are followed to prevent damage.

6。 トラブルシューティング

For specific troubleshooting steps, please refer to the detailed troubleshooting section in the printed manual included with your product. Common issues may include:

• No hot water: Check power supply, circuit breaker, and water flow.
• Insufficient hot water: Verify correct temperature setting and ensure flow rate is within specifications for simultaneous usage.
• Error codes on LED display: Consult the manual for specific code meanings and resolutions.

7. 仕様

8. 保証とサポート

Specific warranty details for the Ranein RE14K Electric Tankless Water Heater are typically provided in the product packaging or on the manufacturer's official website. Please refer to the documentation included with your purchase for comprehensive warranty information and contact details for customer support.

For technical assistance or service inquiries, please contact Ranein customer support. Contact information can usually be found in your product manual or on the Ranein brand store page.