Dux 26ECB5N Owner's Manual
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Dux 26ECB5N Owner's Manual

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(e.g. 26ECB5N)
Thank you for purchasing this Dux Gas Water Heater.
Before using, please:
Read this manual completely for operating instructions.
Confirm warranty and proof of purchase.
Keep this manual where it can be found whenever necessary.
Installation must conform with local codes, or in the absence of local codes, AS/NZS 5601, AS/NZS 3500.4, AS/
NZS 3000 wiring regulations and all Local Building, Water and Gas fitting regulations.
Dux reserves the right to discontinue, or change at any time, the designs and/or specifications of its products
without notice.
* Note: This appliance requires a minimum flow rate to operate of 2.5 litres/min., water fixtures with a flow rate
of 7.5 litres/min. or higher are recommended.
For optimum performance we recommend installation of Dux optional temperature controllers.
SBB816U
Rev. 05/19
Owner's Guide
Condensing Models
26ECB5N
26ECB5L
26ECB6N
26ECB6L
21ECB5N
21ECB5L
21ECB6N
21ECB6L
Non Condensing Models
21ENB5N
21ENB5L
21ENB6N
21ENB6L
17ENB5N
17ENB5L
17ENB6N
17ENB6L
26ENA5N
26ENA5L
26ENA6N
26ENA6L
32END5N
32END5L
32END6N
32END6L

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Summary of Contents for Dux 26ECB5N

  • Page 1 Installation must conform with local codes, or in the absence of local codes, AS/NZS 5601, AS/NZS 3500.4, AS/ NZS 3000 wiring regulations and all Local Building, Water and Gas fitting regulations. Dux reserves the right to discontinue, or change at any time, the designs and/or specifications of its products without notice.

  • Page 2: Important Safety Information

    Owner’s Guide Important Safety Information WARNING If the information in this manual is not followed exactly, a fire or explosion may result causing property damage, personal injury or death. • Do not store or use petrol or other flammable vapours and liquids in the vicinity of this or any other appliance.
  • Page 3 3. Turn off gas and water supply valves. will settle on the floor. 4. Call Dux on AU 1300 365 115. WHAT TO DO IF YOU SMELL GAS • Do not try to light any appliance.
  • Page 4 Owner’s Guide WARNING Check that the data plate. Leave the proper clearance between the Water Heater and nearby objects (trees, timber, boxes with flammable materials, etc.). Upper: (e.g. For Natural Gas) Min. 500 mm Left side: xxxxxxxx Min. 500 mm Right side: Front: Min.
  • Page 5 Power must be switched on at all times for internal electrical components. antifrost protection to work. If it is snowing, check the air inlet, exhaust Contact Dux before using with a solar heater. gas vent and exhaust vent terminal for blockage.

  • Page 6: Table Of Contents

    Owner’s Guide Contents Important Safety Information Contents General Names and Functions of Controllers Main Controller (ECM1D), Bathroom Controller (ECB1D) Bathroom 2 Controller (ECB2D) Initial Operation Clock Adjustment Setting and Using the Water Heater Operation (Not using the Remote Controller) Operation (Using the optional Remote Controller) Controller Priority Function Customizable Settings Muting the Remote Controller...

  • Page 7: General

    When hot water flows. After one minute passed from turn (e.g. 26ECB5N) on hot water, the outside edge of the two digit display will rotate in a circular pattern. If the amount of water is too low, “L”...

  • Page 8: Names And Functions Of Controllers

    Owner’s Guide Names and Functions of Controllers Some products use RC-9018C. In that case, refer to the Owner’s Manual of RC-9018C. Main Controller (ECM1D), Bathroom Controller (ECB1D) <Optional> • What is actually displayed depends on how the Water Heater is set. •...

  • Page 9: Bathroom 2 Controller (Ecb2D)

    Owner’s Guide Bathroom 2 Controller (ECB2D) <Optional> • What is actually displayed depends on how the Water Heater is set. • Before use, remove the protective sheet from the Remote Controller surface. ON/OFF 1. Operation Button / Indicator For turning the Water Heater ON/OFF. 2.

  • Page 10: Initial Operation

    Owner’s Guide Initial Operation Before start using for the first time, do the following: 1. Open the water supply valve. 2. Open a hot water fixture to confirm that water is available, and then close the fixture again. Hot water fixture 3.

  • Page 11: Clock Adjustment

    Owner’s Guide Clock Adjustment (For Main Controller only) Clock setting and the clock can be displayed Display the clock regardless of “ON or OFF" of the operation button. (The illustration is in a state of "OFF".) 1. Press the Set time button. Operation •...

  • Page 12: Setting And Using The Water Heater

    Owner’s Guide Setting and Using the Water Heater DANGER • To prevent scalding : Hot Water Heater temperatures over 50°C can cause severe burns instantly or death from scalding. • Children, disabled people and elderly are at the highest risk of being scalded. Please check the water temperature before bathing or showering.

  • Page 13: Operation (Using The Optional Remote Controller)

    Owner’s Guide Operation (Using the optional Remote Controller) 1. The Operation button is ON. Temperature Setting Options Priority indicator is displayed. The temperature settings below are examples. The temperature setting necessary depends on the usage, the length of piping and the season. (Default setting is 40°C) 37°C Washing dishes,...

  • Page 14: Controller Priority Function

    Owner’s Guide Controller Priority Function For Main Controller and Bathroom 2 Controller Hot water supplied from this Water Heater is delivered to the kitchen, bathroom, and shower, etc. at the same temperature. 1. Turn off the Operation button. The water temperature can only be changed by one remote controller if multiple remote controllers •...

  • Page 15: Customizable Settings

    Owner’s Guide Customizable Settings Muting the Remote Controller Bath Fill Function The Remote Controller will When the bath has reached the volume set on the controller, an alarm emit a sound when any button sounds and the hot water supply will stop automatically. is pressed.

  • Page 16: Call Function

    Owner’s Guide Call Function (For Bathroom Controller only) The call button can be used to sound an alarm at the Main Controller. Operation 1. Press the Call button. • The alarm sounds for as long as the button is pressed. •...

  • Page 17: Frost Protection

    Owner’s Guide Frost Protection Take the measures below for NOTICE extremely cold temperatures*. * Outside temperature including wind chill factor • Damage can occur from frozen water within less than -15°C. the appliance and pipes even in warm environments. Be sure to read below for appropriate measures.
  • Page 18 Owner’s Guide 5. Open all drain plugs and drain the water out of If the water heater will not be used for the unit. a long period of time, drain the water. 6. When the water is completely drained, replace all drain plugs and close the hot water fixtures.
  • Page 19 Owner’s Guide Turning the Unit Back On DANGER (Condensing Model only) After the water heater has been out of use for a long time make sure that you fill the condensate trap with water. This is to prevent dangerous exhaust gases from entering the building. Failure to fill the condensate trap could result in severe personal injury or death.

  • Page 20: Regular Maintenance

    Melamine Sponge to clean the Remote Controller.; discolouration, deformation, scratches or cracks may occur. (e.g. 26ECB5N) • ECB1D and ECB2D are water resistant but not water proof. Keep it as dry as possible. ECM1D and RC-9018C is not...
  • Page 21 1. Close the water supply valve. Sealing Inlet water filter Water Supply Valve (e.g. 26ECB5N) 2. Open all hot water fixtures. 3. With a bucket ready, remove the inlet water filter. (about 1 L will drain out) 4. Clean the inlet water filter with a brush under running water.

  • Page 22: Troubleshooting

    Owner’s Guide Troubleshooting Initial Operation Hot water is not available when a fixture is opened. The Water Heater does not attempt to ignite • Are the gas and water supply valves fully open? when water is running. • Is the water supply cut off? •...
  • Page 23 Owner’s Guide Sounds Fluctuations in hot water temperatures. • Set water temperature at 48°C to 50°C. This will allow you to use a higher flow of hot water thus The fan can be heard after operation is stopped. meeting the minimum flow requirement*. A motor can be heard when turning the Water * 32 litre models: 2.0L/min, Heater on or off, when opening or closing a...
  • Page 24 Error Code : 99 Cause : Abnormal combustion Status Display Action : Contact the installer or Dux Service Department for assistance. Indication on the Status Display : Error Code : 11 Cause : The outlet temperature is colder than set Cause : Ignition failure temperature.

  • Page 25: Follow-Up Service

    If you want to reinstall the appliance at a different section. (See page 22-24) location, confirm that the gas and power supply If the error is not corrected, contact Dux Service indicated on the data plate are available at the new Department at 1300 365 115.

  • Page 26: Specifications

    Owner’s Guide Specifications • Specifications may be changed without prior notice. • The capacity may differ slightly, depending on the water pressure, water supply, piping conditions, and water temperature. Item Specification 50°C model 26ECB5N 26ECB5L 21ECB5N 21ECB5L 21ENB5N 21ENB5L 17ENB5N 17ENB5L...
  • Page 27 145 W Prevention 2.3 mm 2.4 mm Burner Injector Size ULPG 1.6 mm 1.5 mm Accessories Anchoring Screws Performances Item Maximum Performance 50°C model 26ECB5N 26ECB5L 21ECB5N 21ECB5L 21ENB5N 21ENB5L 17ENB5N 17ENB5L Model Name 55°C model 26ECB6N 26ECB6L 21ECB6N 21ECB6L...

  • Page 28: Maintenance

    Owner’s Guide Maintenance When water hardness is high, following 3/4” Ball Valve Pressure Regulator maintenance (flushing the heat exchanger) is recommended. 3/4” Union Circulating Pump Check Valve Boiler Drain Valve 1. (For 32END5 series only) Pressure Solenoid Valve Open a hot water fixture and confirm that the Relief Valve Burner on indicator is displayed.
  • Page 29 Owner’s Guide WATER QUALITY All Dux water heating appliances are constructed from high quality materials and components and all are certified for compliance with relevant parts of Australian and New Zealand gas, electrical and water standards. Whilst Dux water heaters are warranted against defects, the warranty is conditional upon correct installation and use, in accordance with detailed instructions provided with the heater.

  • Page 30: Manufacturer's Warranty

    Where the Dux water heater is located outside the metropolitan area of a capital city and is more than 100km from a Dux office or Dux agent, the Owner will be responsible under the warranty for paying the costs of...
  • Page 31 You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure. If Dux fails to meet a guarantee under the ACL, your remedy for such failure may be limited to any one or more of the following: •...

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