Table of Contents
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Electric Tankless Water Heater
Installation and Operation Manual
Use this manual for installations in the United States of America: Please read all
instructions before using this water heater. Failure to follow the information in these
instructions may result in fire, electric shock, property damage, injury or death.
WARNING
MODEL:
FEMV18WA
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Table of Contents
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Summary of Contents for Mizudo FEMV18WA
- Page 1 MODEL: FEMV18WA Electric Tankless Water Heater Installation and Operation Manual WARNING Use this manual for installations in the United States of America: Please read all instructions before using this water heater. Failure to follow the information in these instructions may result in fire, electric shock, property damage, injury or death.
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Page 3: Table Of Contents
Contents CONTENTS 1 Explanation of Symbols and Safety Instructions 1.1 Recognize Safety Information 1.2 Understand Signal Words 1.3 Important Safety Messages 2 General Information 2.1 Unit Specifications 2.2 Technical Parameters 3 Installation 3.1 Quick Start Guide 3.2 Before Installation Process 3.3 Prepare for installation 3.4 Installation Instructions 3.5 Plumbing Installation... -
Page 4: Explanation Of Symbols And Safety Instructions
Explanation of Symbols and Safety Instructions 1 Explanation of Symbols DANGER and Safety Instructions This manual has safety information and instructions to help you eliminate or reduce the risk of accidents and injuries. 1.1 Recognize Safety Information This is the safety alert symbol. It is used to alert you to potential physical injury hazards. - Page 5 Explanation of Symbols and Safety Instructions Time/Temperature Relationship in Scalds 1. CAUTION: FOR HOUSEHOLD AND INDOOR USE ONLY. Temperature Time To Produce a Serious Burn 2. DO NOT install this hot water unit in a location 120 °F More than 5 minutes where it may be subjected to freezing temperatures.
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Page 6: General Information
General Information 2 General Information 2.1 Unit Specifications Front Cover Led Display Control Key Hot Water Outlet Cold Water Inlet 12.22" (310.5 mm) 3.43" (87 mm) 2.28" (58 mm) 3.94" (100 mm) -
Page 7: Technical Parameters
General Information 2.2 Technical Parameters FEMV18WA Model 240V~ Voltage Power 18kW Min. Required Circuit Breaker Size 2 X 40AMP Max. Amperage Recommended Wire Size 2 X (8AWG/2) Min. Water Flow to Activate the Unit 0.5 GPM / 1.93 L/min Safe Operating Pressure 2.9 PSI - 120 PSI... -
Page 8: Installation
Installation 3 Installation CAUTION This unit requires a 2X40A double pole 3.1 Quick Start Guide breaker. For more information please consult a certified electrician in your area. Mounting The unit should be installed vertically on a flat 3.2 Before Installation Process surface that is larger than the unit itself. -
Page 9: Prepare For Installation
Installation 3.4 Installation Instructions The installation must be in compliance with the National Electrical Code, your local electrical and plumbing codes. 1. Figure out where to mount the water heater unit, mark 4 mounting holes on the wall according to 1. -
Page 10: Plumbing Installation
5. A set of service valves should be applied to the inlet and outlet fittings of the water heater FEMV18WA if you live in hard water area, so you could get easy access of annual maintenance. Also, a descale device should be applied to the inlet pipe, so as to avoid scale build up and ensure long lifespan (Fig.5). -
Page 11: Installation Diagram
Installation 3.7 Installation Diagram Water Outlet Service Valve Water Inlet Descaling device Fig. 5 2X40A Double pole Breaker B Breaker A L2 L1 Black Black Terminal blocks Copper Fig. 6... -
Page 12: Operation
Operation 4 Operation If the unit has been paused, you may initially get a short burst of very hot water when you turn it on 4.1 Operation Instructions again. Please run the water through for a few seconds to let the temperature settle down. Please WARNING check the hot water with your hand before taking a shower. -
Page 13: Troubleshooting
Troubleshooting 6 Troubleshooting 6.1 Malfunction Code Error Code Failure analysis Solution Leakage of electricity Send to after-sales service. A. Select lower power level or turn down the Temperature exceed 149 °F / 65 °C temperature. B. Increase water flow. Water inlet temperature sensor failure Send back to after-sales service. -
Page 14: Circuit Diagram
Circuit Diagram 7 Circuit Diagram 18000W water heater FEMT18GA Heater Terminal Block Temperature Limiter 240V 60Hz 240V 60Hz Triac 1 Triac 2 Flow sensor Control PCB Water temp Main PCB sensor High temp sensor... -
Page 15: Packing List
Packing List 8 Packing List Order Quantity Design The water heater 1 piece Mounting brackets and screws 1 piece Installation and Operation Manual 1 piece Installation mounting template 1 pieces... -
Page 16: Warranty Policy
Mizudo’s sole discretion. The warranty claim for product parts and labor may be denied if a component or product returned to Mizudo is found to be free of defects in material or workmanship; damaged by improper installation, use or operation; or damaged during return shipping. - Page 17 Product for Repair or Refund Policy provided with the Product. Within the first 30 days of purchase, Mizudo will cover all ground shipping costs for warranty related issues in the US and Canada, excluding Alaska, Hawaii, and any location outside of the continental US and Canada. After the first 30 days of purchase, the owner is responsible for all shipping to Mizudo, regardless of reason or circumstance.
- Page 18 9. Mizudo will not pay increases in electricity for any reason whatsoever, including additional or unusual use of supplemental electrical heat.
- Page 20 Tel: 877-216-1818 E-mail: us.mizudo@fogatti.com @2023 Mizudo Holdings Limited. Mizudo Holdings Limited continually updates materials, and as such, content is subject to change without notice.
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