{"id":42410,"date":"2024-12-25T06:46:12","date_gmt":"2024-12-25T06:46:12","guid":{"rendered":"https:\/\/www.vevor.com\/diy-ideas\/product\/vevor-instant-water-heater-18kw-manual\/"},"modified":"2025-09-01T19:29:43","modified_gmt":"2025-09-01T19:29:43","slug":"vevor-instant-water-heater-18kw-manual","status":"publish","type":"product","link":"https:\/\/www.vevor.com\/diy-ideas\/product\/vevor-instant-water-heater-18kw-manual\/","title":{"rendered":"VEVOR Instant Water Heater, 18kw Manual"},"content":{"rendered":"

Unlock the ultimate convenience and reliability with the VEVOR Instant Water Heater<\/a>, 18kw Electric Tankless Water Boiler. Our comprehensive manual, designed to walk you through every step of the setup, troubleshooting, and optimization process, is now available for download.<\/p>\n

Featuring a digital temperature display and easy installation, this water heater ensures a constant 24-hour water supply for your kitchen, bathroom, shower, mall, salon, or shampoo stations.<\/p>\n

ETL Listed for safety and efficiency, the manual provides clear, detailed instructions and insights, making sure you get the most out of your VEVOR Instant Water Heater. Whether you\u2019re setting up for the first time or fine-tuning your system, this manual is an invaluable resource. Download today and experience seamless, hassle-free operation.<\/p>\n

VEVOR Instant Water Heater User Manual<\/h2>\n

MODEL: <\/b>JN18\/ JN27<\/p>\n

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WARNINGS<\/b><\/h2>\n

This is not a do-it-yourself project. Failure to have this appliance installed by a licensed plumber and electrician will void all warranties.<\/span><\/p>\n

Under no circumstances should you attempt to install, repair, or disassemble the tankless electric heater without first shutting off all power to the unit directly at the circuit breaker box.<\/span><\/p>\n

Installation of this product is restricted to indoor locations only by licensed plumbing or electrical contractors.<\/span><\/p>\n

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Important Safety Instructions<\/b><\/h2>\n
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  1. The installation must comply with the National Electrical Code and your local electrical and plumbing codes.<\/span><\/li>\n
  2. This appliance must be <\/span>EARTHED.<\/b><\/li>\n
  3. A qualified electrician must supervise all wiring and installation.<\/span><\/li>\n
  4. CAUTION<\/b>: This product has more than one power-supply connection point. Disconnect all power supplies before servicing (for models JN08, JN13, JN18, JN27 only).<\/span><\/li>\n
  5. This appliance is not intended for use by persons (including children) with reduced physical, sensory, or mental capabilities or a lack of experience and knowledge unless they have been given supervision or instruction concerning its use by a person responsible for their safety. Children should be supervised to ensure they do not play with the appliance.<\/span><\/li>\n
  6. This appliance <\/span>MUST<\/b> be permanently connected to the fixed circuit breaker and installed vertically.\u00a0<\/span>DO NOT\u00a0<\/strong>install this appliance near a tinder or a strong magnetic field.<\/li>\n
  7. This appliance is <\/span>forbidden <\/b>to be switched on if you think it may be frozen, as this could result in severe damage to the unit. Please wait until you are sure that it has completely thawed out before you switch it on.<\/span><\/li>\n
  8. To avoid scalding, please feel the outlet hot water temperature with your hand before showering to ensure it is suitable.<\/span><\/li>\n
  9. Before connecting pipes to the water heater hoses, it is essential to FLUSH the pipes to wash away all plumbing paste or residue in the pipes.<\/span><\/li>\n
  10. The heating chamber is treated with composite nano insulation material; it is natural if there is a slight smell or green blue smoke when the unit is first used.<\/span><\/li>\n
  11. If the wire is damaged, you must contact a qualified electrician to have it replaced with dedicated wire from our authorized dealers.<\/span><\/li>\n
  12. CAUTION: FOR HOUSEHOLD AND INDOOR USE ONLY.<\/span><\/li>\n
  13. Risk of electric shock<\/b>, CONNECT ONLY TO A CIRCUIT THAT IS PROTECTED BY A GROUND-FAULT CIRCUIT INTERRUPTER (GFCI).\u00a0<\/span><\/li>\n<\/ol>\n

    Save this instruction.<\/span><\/p>\n

    Instant Water Heater Product Features<\/b><\/h2>\n

    The tankless electric water heaters are incorporated with China’s national patent technology with multiple safety devices. The unit also has the following features:<\/span><\/p>\n

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    1. Tankless, instantaneous heating for on-demand hot water. No pre-heating. No standby heating loss. Energy-saving.<\/span><\/li>\n
    2. Micro-computer control, adopting patent heating technology. Water is completely separated from electricity by multiple layers of composite nano insulation material.<\/span><\/li>\n
    3. Over-temperature protection: When the outlet water temperature reaches over 167\u00b0F\/75\u00b0C, the electricity will be cut off to avoid getting scalded, and the screen displays E1. The appliance will start to work automatically when the temperature drops to the set temperature.<\/span><\/li>\n
    4. Malfunction of sensor- when there is a malfunction with the inlet temperature sensor, the heater stops working and displays E3.<\/span><\/li>\n
    5. Malfunction of sensor- when there is a malfunction with the outlet temperature sensor, the heater stops working and displays E4.<\/span><\/li>\n
    6. Conversion between degrees Fahrenheit and degrees Celsius.<\/li>\n<\/ol>\n

      Electrical Diagram<\/b><\/h2>\n

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      Technical Data<\/h2>\n

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      Note<\/strong>:* A suitable<\/span>\u00a0recognized strain relief means shall be provided when the product is installed.<\/span><\/p>\n

      Recommended Accessories<\/b><\/h2>\n

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      Product Inner Structure<\/h2>\n

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      Instant Water Heater Installation Guideline<\/b><\/h2>\n

      The installation must comply with the National Electrical Code, your local electrical and plumbing codes.<\/span><\/p>\n

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      1. Make sure the appliance is intact, and the fittings are complete.<\/span><\/li>\n
      2. Please make sure the main power supply, water pressure, grounding condition, ammeter and wire reach the standard of installation requirements.<\/span><\/li>\n
      3. The appliance must be connected to properly grounded dedicated branch circuits of proper voltage rating. Ground must be brought to the “ground” at the circuit breaker panel.<\/span><\/li>\n
      4. This appliance <\/span>MUST<\/b> be permanently connected to the fixed circuit breaker. Please switch off the circuit breaker if you don’t use the heater.<\/span><\/li>\n
      5. DO NOT<\/strong> install this appliance near a strong magnetic field or a transformer. The unit must only be mounted vertically near the water fittings. Please electrify and try the machine after getting through the waterway.<\/span><\/li>\n<\/ol>\n

        Installation Method<\/b><\/h2>\n

        Fixed installation on the wall<\/b><\/h3>\n

        Locate an appropriate place on a section of wall as mentioned above.<\/span><\/p>\n

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        Water Connections<\/b><\/h3>\n
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        1. All water pipes must comply with national and applicable state and local water pipe codes.<\/span><\/li>\n
        2. The unit should be connected directly to the main water supply. Flush the pipe with water to remove any debris or loose particles.<\/span><\/li>\n
        3. It is required to use 3\/4″ NPT water connections to fit the models of JN18 and JN27.<\/span><\/li>\n
        4. Please remember to install rubber seal rings at the connections. When all water connections are completed, check for leaks and take corrective action before proceeding.<\/span><\/li>\n<\/ol>\n

          Electrical connection<\/b><\/h3>\n
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          1. All electrical work must comply with national and applicable state and local electrical codes.<\/span><\/li>\n
          2. All units must be connected to a properly grounded dedicated branch circuit of proper voltage rating.<\/span><\/li>\n
          3. JN18 require two independent circuits. Use two supply cables protected by two separate double-pole breakers.<\/span><\/li>\n
          4. JN27 require three independent circuits. Use three supply cables protected by three separate double-pole breakers.<\/span><\/li>\n
          5. While feeding the cable to the terminal blocks, please make sure the metal wire ends and the terminal blocks touch completely. Then, tighten the screws to ensure the full current can pass through.<\/span><\/li>\n
          6. Before beginning any work on the electric installation, be sure that main breaker panel switch is OFF to avoid any danger of electric shock, all mounting and plumbing must be completed before proceeding with electrical hook-up.<\/span><\/li>\n<\/ol>\n

            Operation Instructions<\/b><\/h2>\n
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            1. Turn on the circuit breaker to bring electrical power to the unit.<\/span><\/li>\n
            2. Open water faucet for a few minutes until water flow is continuous and air purged from water pipes. The unit must be operated after the breakers are turned on.<\/span><\/li>\n
            3. After the unit is supplied with power, a beep sound can be heard, and LED lights will flash for 2 seconds. There will be no other display, and the appliance will stay on standby.<\/span><\/li>\n
            4. Press the power button to turn the appliance ON\/OFF. When the unit is ON, the LED displays the outlet’s actual water temperature. After 5 seconds, the screen switches to the screen saver while the appliance stops working. The display screen light will be off. If the screen is touched, it will be light again.<\/span><\/li>\n
            5. Single touch <\/span>\ud83d\udd3c<\/b> and <\/span>\ud83d\udd3d<\/b> to adjust the outlet temperature.<\/span>\n