Dux 21ENB5N Owner's Manual
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Dux 21ENB5N Owner's Manual

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See also: Installation Manual
Ex. 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/NZS5601, AS/
NZS3500.4, AS/NZS3000 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 recomended.
For optimum performance we reommend installation of Dux optional temperature controllers.
SBB80PS
Rev. 06/16

Owners 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
*SBB80PS*

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  • Page 1: Owners Guide

    Installation must conform with local codes, or in the absence of local codes, AS/NZS5601, AS/ NZS3500.4, AS/NZS3000 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 fl ammable vapours and liquids in the vicinity of this or any other appliance.
  • Page 3 3. Turn off gas and water supply valve. water heater area for evidence of leaking gas. 4. Call Dux on AU 1300 365 115. Be sure to smell next to the fl oor because some gas is heavier than air and will settle on the fl oor.
  • Page 4 (left side of casing) and ceiling (Do not enclose using Be sure Prohibited to do. corrugated sheets, etc.) Ex. For Natural Gas (21ENB5N) xxxxxxxx Unit Carbon monoxide poisoning or fire may occur as a result. Installation and service must be...
  • Page 5 Owner's Guide Do not touch the power Contact Dux before using with cord with wet hands. a solar heater. Don’t touch Electric Be sure with a wet Shock. to do. hand. Contact a qualifi ed service technician for any necessary Don’t...
  • Page 6 Owner's Guide Important Safety Information CAUTION Do not drink water that has been inside the Do not disassemble the remote controller. unit for an extended period of time. Do not Do not use benzene, oil or fat detergents drink the fi rst use of hot water from the to clean the remote controller.

  • Page 7: Table Of Contents

    Owner's Guide Contents Important Safety Information............... 2 Contents ......................7 General Parts Main Unit ....................8 Names and Functions of Controllers Main Controller (ECM1D) ................9 Bathroom Controller (ECB1D) ..............10 Bathroom 2 Controller (ECB2D) .............. 11 Initial Operation ................... 12 Clock Adjustment ..................

  • Page 8: General Parts

    Owner's Guide General Parts Main Unit Outdoor Wall Mounted, Power fl ue Model Flue Exhaust Front Cover Air Inlet Inlet water fi lter (Inside Water Inlet) p.24) Gas Supply Valve Water Supply Valve Hot Water Pipe External Weatherproof Power Point Drain Pipe - Condensing Model only Discharges the condensate Ex.

  • Page 9: Names And Functions Of Controllers

    Owner's Guide Names and Functions of Controllers Main Controller (ECM1D) <Optional> What is actually displayed depends on how the water heater is set. Setting Buttons For setting the hot water temperature p.14-15) For other settings. Display Operation Button For turning the water heater on or off.

  • Page 10: Bathroom Controller (Ecb1D)

    Owner's Guide Bathroom Controller (ECB1D) <Optional> What is actually displayed depends on how the water heater is set. Setting Buttons For setting the hot water temperature p.14 -15) For other settings. Display Operation Button For turning the water heater on or off. Call Button Bath Fill Button To activate Bath Fill.

  • Page 11: Bathroom 2 Controller (Ecb2D)

    Owner's Guide Bathroom 2 Controller (ECB2D) <Optional> What is actually displayed depends on how the water heater is set. Operation Button ON/OFF Display For turning the water heater on or off. Setting Buttons For setting the hot Water temperature. BATHROOM 2 ECB2D p.14 -15) * Before use, remove the protective sheet from the remote controller surface.

  • Page 12: Initial Operation

    Open the water supply valve. CLOSED OPEN Open a hot water fixture to confirm that water is available, and then close the fixture again. Hot water fixture Open the gas supply valve. Turn on the power. Ex. 21ENB5N Part: XXXXX Rev XX...

  • Page 13: Clock Adjustment

    Owner's Guide Clock Adjustment (Main Controller) Note: Only the main controller has a clock function. 1, 3 Clock setting and the clock can be dis- played regardless of “ON or OFF" of the operation button. (The illustration is in a state of "OFF".) MAIN ECM1D Press the Set...

  • Page 14: Setting And Using The Water Heater

    Owner's Guide Setting and Using the Water Heater (Starting with the Operation Off) (Main Controller) Press the Operation Button MAIN ECM1D The temperature will be displayed on the Remote Controller. Previous set temperature (Eg.: 40°C) DANGER To prevent scalding: Remote Controller Display High Temperature Hot Water Heater temperatures over 50°C can cause severe burns instantly or death from scalding.
  • Page 15 Owner's Guide Set temperature. Turn on hot Turn off the hot Always check the water. water. temperature setting before use. Cold Check the indicator lights. Water temperature The temperature settings below are examples. The temperature setting °C : necessary depends on the usage, the length of piping or seasons. Bathroom and Bathroom 2 controller are these ranges.

  • Page 16: Controller Priority Function

    Owner's Guide Controller Priority Function Priority Hot water supplied from this appliance is delivered to the kitchen, bathroom, and shower, etc. at the same temperature. The water temperature can only be changed by one remote controller if a number of remote controllers are installed.

  • Page 17: Muting The Remote Controller

    Owner's Guide Muting the Remote Controller (Main Controller) The remote controller will emit a sound when any button is pushed. This sound can be muted if it is desired. * Initial factory setting is with sound MAIN ECM1D Hold the Operation Button for fi ve seconds.

  • Page 18: Bath Fill Function

    Owner's Guide Bath Fill Function (Main Controller) (Bathroom Controller) MAIN BATHROOM ECM1D ECB1D (Starting with the operation off) Press the Press the Bath Preparation Operation Button Fill Button Plug the bath drain. Flashing after 10 sec. The temperature will be displayed on the remote control thermostat.

  • Page 19: Filling Up The Bath

    Owner's Guide Filling Up the Bath Water Temperature In order to run a warm bath, push the bath fill The temperatures settings below are only examples. The °C : button and open the hot water tap of the bath. temperature setting necessary will depend on the usage, the length of piping or seasons.
  • Page 20 Owner's Guide An alarm will sound for 10 seconds when the flow reaches the set level. And the hot water will stop automatically. Turn off the hot * When using hot water at another hot water outlet, also water when the turn it off.

  • Page 21: Call Function

    Owner's Guide Call Function (Bathroom Controller) The call button can be used to sound an alarm at the Main Controller. (Conversation is not possible as it is not an intercom.) BATHROOM ECB1D Press the call button. The alarm sounds for as long as the button is pressed.

  • Page 22: Frost Protection

    Owner's Guide Frost Protection CAUTION * Damage can occur from frozen water within the device and pipes even in warm environments. Be sure to read below for appropriate measures. * Repairs for damage caused by freezing are not covered by the warranty. Freezing is prevented within the device automatically by the freeze-prevention heater Freezing cannot be prevented when the power plug is unplugged.

  • Page 23: Regular Maintenance

    Owner's Guide Regular Maintenance Performance CAUTION To prevent burns or scalding, turn off the operation button and wait until the equipment cools before performing maintenance. Be sure to do. For dust and soot in For laundry, newspaper, Check Check the flue exhaust. timber, oil, spray cans and other combustible materials.

  • Page 24: Periodic Maintenance

    8. Open the water supply valve and check that water does not leak from the inlet water filter. Water Supply Valve Ex. 21ENB5N * This water heater should be serviced by an authorised person at regular intervals not exceeding 2 years. Part: XXXXX Rev XX...

  • Page 25: Troubleshooting

    Owner's Guide Troubleshooting Initial Operation • Check for reversed plumbing or crossed pipes. Unit does not attempt to ignite • Check the inlet water filter. ( p.24) when water is running. • Reset unit and try again. There may be air in the gas line. Unit attempts to ignite but fails •...

  • Page 26: Amount Of Hot Water

    Owner's Guide (Continued) • The unit will not heat the water if the flow rate is less than The water is cold when only a 2.5 litre per minute. single fixture is open. Open the fixture more or open other fixtures so that a greater flow passes through the unit, and the unit should begin heating again.

  • Page 27: Remote Controller

    Owner's Guide Remote Controller The light on the operation button does • Has there been a power failure? not come on. • Is the power connected properly? Clock shows “0:00”. • If the power is disconnected for any reason, when the power is reconnected, the clock on the display screen shows “0:00”, indicating that it needs to be reset.
  • Page 28 If the flashing number doesn't return the problem is solved. Clogging of neutralizer Contact the installer or DUX Service Department for assistance. (Condensing model only) Abnormal combustion, Have a professional check the gas supply pressure.

  • Page 29: Follow-Up Service

    See warranty Document on page 34. Period of Time for Stocking Repair Parts Dux will stock repair and maintenance parts for this unit within ten (10) years of the date of original manufacture. Reinstallation If you want to reinstall the appliance at a different location, confirm that the gas and power supply indicated on the data plate are available at the new location.

  • Page 30: Specifications

    Owner's Guide Specifications Specifications Model Name 26ECB5N 26ECB5L 26ECB6N 26ECB6L 21ECB5N 21ECB5L 21ECB6N 21ECB6L Approval certification number SAI-400194 Installation Outdoor, Wall Mounted Type Air Supply/Exhaust Power Flue Operating Pressure 200 -1,000 kPa Minimum Flow Rate 2.5 L/min. Dimensions 520mm (Height) x 350mm (Width) x 170mm (Depth) Weight 18 kg 17 kg...

  • Page 31: Specifications

    Owner's Guide Specifications Model 21ENB5N 21ENB5L 21ENB6N 21ENB6L 17ENB5N 17ENB5L 17ENB6N 17ENB6L Approval certification number SAI-400195 Installation Outdoor, Wall Mounted Type Air Supply/Exhaust Power Flue Operating Pressure 200 -1,000 kPa Minimum Flow Rate 2.5 L/min Dimensions 520mm (Height) x 350mm (Width) x 170mm (Depth)
  • Page 32 Owner's Guide Specifications Model Name 26ENA5N 26ENA5L 26ENA6N 26ENA6L Approval certification number SAI-400195 Installation Outdoor, Wall Mounted Type Air Supply/Exhaust Power Flue Operating Pressure 200 -1,000 kPa Minimum Flow Rate 2.5 L/min. Dimensions 600mm (Height) x 350mm (Width) x 170mm (Depth) Weight 19 kg Water Holding Capacity...

  • Page 33: Water Quality

    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 34: Manufacturer's Warranty

    Consumer Law (“ACL”). a Unit will only be met by Dux where the damage could be considered reasonably foreseeable and If the Unit fails to conform to this Warranty during...
  • Page 35 Owner's Guide Contact Details: Dux Manufacturing Limited Lackey Road, Moss Vale, NSW, 2577, Australia 1300 365 115 (Australia) 0800 729 389 (New Zealand) Email: duxaftersales@dux.com.au Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a...
  • Page 36 Owner's Guide Note Part: XXXXX Rev XX...

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26ena5n21enb5l26ena5l21enb6n26ena6n21enb6l ... Show all

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