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User 
Manual Book 

Electric Storage Water Heater 

 

 

 
 

 

 
 

Unica Series 

 

ES 10A3, ES 15A3 

 

 

 

 

 

Summary of Contents for ES 10A3

Page 1: ...User Manual Book Electric Storage Water Heater Unica Series ES 10A3 ES 15A3 ...

Page 2: ...ng Connection 9 Part 4 How to Use 11 Operating Procedure 11 Operating the Water Heater 12 Product Function Introduction 12 Part 5 Maintenance 13 Tank Cleaning 13 Safety Valve Cleaning 13 Magnesium Anode 15 Heating Element 15 Part 6 Troubleshooting 15 Part 7 Disposal of Used Product 16 Part 8 Specification 17 Appendix Wiring Diagram 18 This manual book explains everything you need to know about you...

Page 3: ... if there is a problem with the power socket Incorrect installation and use of this electric water heater may result in serious injuries and loss of property Special Caution If the supply cord is damaged it must be replaced by MODENA technicians MODENA service agent or similarly qualified persons in order to avoid a hazard The power socket must be grounded earthed reliably The rated current of the...

Page 4: ...fter the water heater has been filled fully with water This water heater is not intended to be used by persons with special needs for their physical sensory or mental capabilities including children unless they have been given the supervision or instructions concerning the use of the appliance by a person who responsible for their safety Children should be supervised to ensure that they are not pl...

Page 5: ... pressure is 0 015 MPa 0 15 Bar When the water pressure is over 0 8 MPa the safety valve will automatically active The water may drip from the drainage pipe of the pressure relief device Picture 2 Therefore this pipe must be left open towards the air atmosphere The pressure relief device should be operated activated regularly to remove limestone deposits and to ensure that the pipe is free from bl...

Page 6: ...eters Rated Volume 10 L 15 L Rated Voltage 220 Rated Power 10 L 250 W 15 L 350 W Rated Pressure 0 8 MPa Rated Frequency 50Hz Rated Water Temperature 75 o C Heating Efficiency 90 Water proof Degree IPX4 Structure Mode Hermetically Closed Type Water Storage Style Picture 2 Picture 3 PART 2 PRODUCT INTRODUCTION Picture 4 Fixed Screw Nail Water Outlet Safety Valve Opened Water Drainage Valve Position ...

Page 7: ...8 hours after the electricity is switched off Rate power heating 250W 350W Installation Instruction This electric storage water heater shall be installed on a solid wall If the strength of the wall cannot bear the load equal to two times of the total weight of the water heater filled fully with water it is then necessary to install a special support In case of the hollow Picture 5 PART 3 INSTALLAT...

Page 8: ...e product for securing the bracket Picture 6 firmly on the wall Align the slots on the back of the water heater with the projections on the bracket and mount the water heater on the bracket until it is locked Install the power plug to the supply socket in the wall The suitable power supply is 220V It is recommended to place the supply socket on the right above the water heater The height of the po...

Page 9: ...Connect the pressure relief valve with the water heater on the inlet of the water heater In order to avoid leakage when connecting the plumbing the rubber seal gaskets that are provided with the water heater must be added at the end of the threads to ensure the connection is leak proof see Picture 8 Picture 8 Machine Body Rubber Seal Gasket Hot Water Outlet Controller Handle for Mixing Valve Power...

Page 10: ...liable Otherwise this water heater may drop off from the wall resulting to its damage even serious accidents or injury to the user When determining the locations for the holes of the bolt ensure that there is a clearance not less than 0 2 m on the right side of this appliance for the convenient maintenance if necessary Picture 9 Hot Water Outlet Pipe Triple Joint Pipe Valve for Water Pipe Shower P...

Page 11: ...utton the indicator light on the plug should be off and the reset button should bounce up Then push down the reset button and the indicator light will turns on to verify that the leakage protection works well Picture 10 If the reset button cannot be pressed during the use the leakage protection device ELCB might be error or fails to work If the reset button is pressed down and bounce up again then...

Page 12: ...it is normal if there is a bit of drip from the safety valve Please do not cover the safety valve of the water outlet hole Connect this outlet hole to a drainage pipe water may drip from the drainage pipe of the safety valve therefore this pipe must be exposed towards the atmosphere air The safety valve has to be operated regularly preferably at least every six months to remove limestone deposit a...

Page 13: ...decomposed or not and if necessary replace it with a new one in case of full decomposition The frequency of tank cleaning depends on the hardness of the water in each location where this water heater is applied Cleaning must be performed by MODENA or authorized maintenance services This water heater is equipped with a thermal switch which cuts off the power supply of the heating element upon overh...

Page 14: ...nk is completely clean Safety Valve Cleaning Safety valves should be cleaned regularly to prevent any dirt that clogs the valve 1 Remove the safety valve then clean and wash it 2 Check if the parts of the valve are still able to move properly 3 After cleaning the valve install the safety valve back to its position by giving the seal tape around the end of valve 4 Fill the water heater with water a...

Page 15: ...e sediment each year To do this cleaning procedure contact MODENA Customer Care Check the things below before contacting MODENA Customer Care in the event of disturbance while using this water heater Problem Possible Cause Recommended Action Heating indicator light is Off Failures of the temperature controller Contact MODENA Customer Care for repair Power indicator light is off 1 Power source is n...

Page 16: ... 1 Seal up the joints 2 Tighten the pipe connection 3 Tighten the element or replace the gasket and contact MODENA Customer Care for repair This symbol on the product or on its packaging indicates that this product may not be treated as household waste Instead it should be taken to the appropriate waste collection point for the recycling of electrical and electronic equipment By ensuring this prod...

Page 17: ...Inch Temperature Max 75o C Insulation Material PUF Polyurethane Product Dimension 389 x 389 x 301 mm 349 x 349 x 276 mm Product Weight 8 6 kg 7 1 kg Specifications of this appliance may change without notice to improve the quality of the product Figures in this manual are schematic and may not match your product exactly Values stated on the machine labels or in the documentation accompanying it ar...

Page 18: ...18 Picture 13 APPENDIX WIRING DIAGRAM Electrical Leakage Protection Wire Thermal Cut out Thermostat Power LED Green Heating Element Heating LED Red L N E Test Indicator Position Resetting ...

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