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(e.g. 26ENG5N)
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 Plumbing Code of Australia (PCA) and 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 1.5-2.5 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.
FH9M001
Rev. 09/21
GISI093
Owner's Guide
FOR CONTINUED SAFETY OF THIS APPLIANCE IT
MUST BE INSTALLED, OPERATED AND MAINTAINED
IN ACCORDANCE WITH THE MANUFACTURER'S
INSTRUCTIONS.
Non Condensing Models
26ENG5N
26ENG5L
26ENG6N
26ENG6L
21ENB5N
21ENB5L
21ENB6N
21ENB6L
17ENB5N
17ENB5L
17ENB6N
17ENB6L
WARNING
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Summary of Contents for Dux 26ENG5N
- Page 1 Installation must conform with Plumbing Code of Australia (PCA) and 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.
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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 Do not install in locations where excessive dust or debris will be in the air. Leave the proper clearance between the To prevent injury or death, do not allow Water Heater and nearby objects (trees, small children to bathe or play in the timber, boxes with flammable materials, bathroom unsupervised.
- Page 5 Power must be switched on at all times for incomplete combustion or damage to the antifrost protection to work. internal electrical components. If it is snowing, check the air inlet, exhaust gas vent and exhaust vent terminal for Contact Dux before using with a solar heater. blockage.
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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 the gas burner is on, set (e.g. 26ENG5N) temperature is displayed for a minute and then “on” is displayed. This illustration shows an example of installation. The exact installation configuration may be slightly different. -
Page 8: Names And Functions Of Controllers
Owner’s Guide Names and Functions of Controllers Main Controller (ECM1D), Bathroom Controller (ECB1D) <Optional> • What is actually displayed depends on how the Water Heater is set. • Before use, remove the protective sheet from the Remote Controller surface. (ECM1D) (ECB1D) 1. -
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.
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Page 19: Regular Maintenance
Melamine Sponge to clean the Remote Controller.; discolouration, deformation, scratches or cracks may occur. • ECB1D and ECB2D are water resistant but not water proof. (e.g. 26ENG5N) Keep it as dry as possible. ECM1D is not water resistant. - Page 20 1. Close the water supply valve. Sealing Inlet water filter Water Supply Valve (e.g. 26ENG5N) 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.
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Page 21: 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 22 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 * 26ENG series: 1.5 L/min Heater on or off, when opening or closing a...
- Page 23 Check for an Error Code Error Code : 99 Cause : Abnormal combustion Action : Contact the installer or Dux Service When a failure occurs, information relating to the Department for assistance. error flashes on the Status Display or optional Remote Controller.
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Page 24: Follow-Up Service
If you want to reinstall the appliance at a different section. (See page 21-23) 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 25: 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 26ENG5N 26ENG5L 21ENB5N 21ENB5L 17ENB5N 17ENB5L Model Name 55°C model... -
Page 26: 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. Disconnect the electrical power to the Water Pressure Solenoid Valve Heater and close the gas supply valve. - Page 27 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.
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Page 28: 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 29 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: •...
- Page 30 Owner’s Guide Note...
- Page 31 Owner’s Guide Note...
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