Termal HOKKAIDO HWMI 300 A Installation & User Manual Download Page 1 | Manualshive

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WATER HEATER

INSTALLATION & USER'S MANUAL

WARNING!

PLEASE READ CAREFULLY THIS MANUAL BEFORE INSTALLING THE WATER HEATER

Model

HWMI 300 A

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Summary of Contents for HOKKAIDO HWMI 300 A

Page 1: ...1 WATER HEATER INSTALLATION USER S MANUAL WARNING PLEASE READ CAREFULLY THIS MANUAL BEFORE INSTALLING THE WATER HEATER Model HWMI 300 A...

Page 2: ...products DISPOSAL REQUIREMENTS Your Water Heater is marked with this symbol This means that electrical and electronic products shall not be mixed with unsorted household waste Do not try to dismantle...

Page 3: ...s Unit is required reliable earthing before usage otherwise might cause death or injury Please ask Authorized Technical Service for reliable earthing connection Your safety is the most important thing...

Page 4: ...Contents PRODUCT S OUTLINE 5 PRECAUTIONS ACCESSORIES 6 INSTALLATION 8 WIRING 13 OPERATING INSTRUCTIONS 15 TRIAL RUNNING CAPABILITY 22 MAINTENANCE 24 DIAGNOSTIC ERROR CODES 25 AUTOMATIC RESTART AFTER A...

Page 5: ...Water Outlet Drain Pipe Water Inlet Solar Water Inlet Electric Heater Air Inlet Top Cover Compressor Front Cover Display Cover Cover Electric Heater Front Decorative Board Electronic Control Box PARTS...

Page 6: ...wrong wire or fuse may cause the Unit to break down or a fire Do not insert fingers rods or other objects into the air inlet or outlet When the fan is rotating at high speed it will cause injury Never...

Page 7: ...installation height of power supply should be over 1 8m to prevent any sprinkling of water from reaching the Unit In the water inlet side the One Way valve must be installed It is normal if some wate...

Page 8: ...n location must be convenient for piping and wiring If the appliance is installed in indoor space it might cause a temperature drop and noise disturbance Please take preventive measures for this If th...

Page 9: ...fix the Unit in a location protected from the Unit Carry the Unit to the installation site by observing the rules and limits set by Manufacturer Install the Unit In order to avoid scratching or defor...

Page 10: ...th the above instructions explosions and injuries may occur Installation of the One Way Valve the specifications of the One Way Valve thread in accessories is RC3 4 It is used to prevent backflow of w...

Page 11: ...as A B 10m Air inlet connect to canvas air outlet without canvas A 10m This type of duct connection is recommended if the appliance is installed inside a room where temperature is higher than outdoor...

Page 12: ...angle as regards the ground must be no more than 2 Install filter inside the Unit In case main Unit is connected with canvas install filter at the air inlet of duct and then install the duct Fig 5 9 a...

Page 13: ...wiring must be performed by Authorized Technicians according to the circuit diagram Set the electric leakage protector according to the current electric technical standards The power cord and the sig...

Page 14: ...r T5L Tank Temp Sensor lower T5U Tank Temp Sensor upper TP Discharge Temp Sensor upper TH Return air temperature sensor Earthing Main Control Board Pressure Switch Compressor Electric Heater Compresso...

Page 15: ...Open After powered on the display lights up User can operate the Unit through the buttons for selecting different modes which are displayed Emptying if Unit needs to be cleaned moved etc water tank m...

Page 16: ...dicator When the actual water temperature exceeds 60 C it lights up Water temperature indicator When the actual water temperature exceeds 50 C it lights up Water temperature indicator When the actual...

Page 17: ...n the Unit will light for 3 seconds while the buzzer will ring twice After no operation for 1 minute all indicators will go out automatically except FILL WATER indicator flashing and WATER TEMP indica...

Page 18: ...ctric heater Used when the ambient temperature is very low By default the Unit operates in HYBRID Mode To change operation mode Temperature displayed is the water temperature in the upper part of the...

Page 19: ...d stop the Water Heater will start according to the set start time and will automatically stop after 10 minutes Fig 7 6 Fig 7 7 Fig 7 8 Fig 7 9 Timer Press the UP and DOWN key you can increase or decr...

Page 20: ...automatically when the ambient temperature meets the operation conditions of heat pump mode and the error LA will disappear at the same time Fig 7 10 Fig 7 11 Fig 7 12 In the unlocked state press the...

Page 21: ...s to stop the buzzer but ALARM indicator will keep on flashing If a malfunction occurs while system works in Economy mode operation may keep on if E heater mode is selected When some error happens tho...

Page 22: ...om 1 2 of Unit The upper sensor tests the water temperature in the upper part of Unit shown by display the bottom sensor tests the water temperature in the bottom part of Unit and controls the ON OFF...

Page 23: ...t the Authorized Technical Service Defrosting during Water heating Water Temperature Display Error Display Restart after a Long Stop Ambient Temperature Mode Selection Self Protection Apparatuses The...

Page 24: ...air inlet directly namely air inlet without connection with canvas the method of dismantle the filter is the following anti clockwise the air inlet ring take out the filter and clean it completely an...

Page 25: ...l restart automatically During water heating the displayed water temperature might still decrease or not increase for a period of time because of the heat exchange of the water When the whole tank of...

Page 26: ...pipe temp sensor error Heat Pump system error Electric leakage protection TH sensor condenser failure System high pressure protection Discharge pipe temperature overhigh protection No current flowing...

Page 27: ...will automatically restart after 3 minutes have elapsed since power is restored This means it is not required to press the ON OFF button Operation settings will be the same as before the blackout WARN...

Page 28: ...Products by the Manufacturer we reserve the right to vary the technical specifications at any time and without notice HOKKAIDO Srl 14 Via della Salute 40132 Bologna Italy Tel 39 051 41 33 111 Fax 39 0...

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