Dux 21ENB6N, 26ENA6N, 21ENB6L, 26ENA6L, 17ENB5N Owner's Manual
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Owners Guide
Condensing Models
26ECB5N
26ECB5L
26ECB6N
26ECB6L
21ECB5N
21ECB5L
21ECB6N
21ECB6L
Non Condensing Models
21ENB5N 26ENA5N
21ENB5L 26ENA5L
21ENB6N 26ENA6N
21ENB6L 26ENA6L
17ENB5N
17ENB5L
17ENB6N
17ENB6L
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
*SBB80PS*
Important Safety Information
Owner's Guide
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 ammable vapours and liquids in the
vicinity of this or any other appliance.
- WHAT TO DO IF YOU SMELL GAS
• Do not try to light the appliance.
• Do not touch any electrical switches; Do not use electrical appilances,
including the phone” inside the building.
• Immediately call you gas supplier, from a safe distance from the gas leak.
- To be installed and serviced only by an authorised person
- This appliance is not suitable for use as a pool heater
To prevent damage to property and injury to the user, the icons shown below will be used to warn of
varying levels of danger.
Every indication is critical to the safe operation of the water heater and must be understood and observed.
Potential dangers from accidents during installation and use are divided into the following four
categories. Closely observe these warnings; they are critical to your safety.
Icons warning of risk level
This is the safety alert symbol. It is used to alert you to potential personal injury hazards.
Obey all safety messages that follow this symbol to avoid possible injury or death.
DANGER
WARNING
CAUTION
CAUTION
Other icons
Electric
Shock
Prohibited No flame.
DANGER indicates an imminently hazardous situation which,
if not avoided, will result in death or serious injury.
WARNING indicates a potentially hazardous situation which, if not
avoided, could result in death or serious injury.
CAUTION indicates a potentially hazardous situation which, if not
avoided, may result in minor or moderate injury.
CAUTION used without the safety alert symbol indicates a potentially
hazardous situation which, if not avoided, may result in property damage.
High
Temperature.
Be sure
to do
.
Don’t
touch
.
Earth
Don’t
disassemble
the equipment.
Don’t touch
with a wet
hand.
2
Part: XXXXX Rev XX
Owner's Guide
Vapours from ammable liquids will explode and catch re causing death or severe burns.
Do not use or store flammable products such as petrol, solvents or
Prohibited
adhesives in the same room or area near the water heater.
Keep ammable products: Vapours:
1. Far away from the water heater.
2. In approved containers.
3. Tightly closed.
4. Out of children’s reach.
DANGER
1. Cannot be seen.
2. Vapours are heavier than air.
3. Go a long way on the oor.
4. Can be carried from other rooms to the main burner by air currents.
Vapours
Hot Water Heater temperatures over 50 °C can cause
severe burns instantly or death from scalding.
Prohibited
Children, disabled and elderly are at the highest risk of
being scalded. Feel water temperature before bathing or
showering. Temperature limiting valves are available, ask
licensed installer.
WARNING
No flame.
A. This water heater does not have a pilot.
It is equipped with an ignition device that
automatically lights the burner. Do not try
to light the burner by hand.
B. BEFORE OPERATING smell all around the
water heater area for evidence of leaking gas.
Be sure to smell next to the oor because
some gas is heavier than air and will settle
on the oor.
WHAT TO DO IF YOU SMELL GAS.
• Do not try to light any appliance.
• Do not touch any electrical switch;
do not use any phone in your building.
• Immediately call your gas supplier.
Follow the gas supplier’s instructions.
C.
Use only your hand to turn the gas valve knob.
Never use tools. If the knob will not turn by
hand, don’t try to repair it. Call a quali ed
service technician. Force or attempted repair
may result in a re or explosion.
D. Do not use this water heater if any part has
been under water. lmmediately call a quali ed
service technician to inspect the water heater
and to replace any damaged parts.
Be sure
to do.
Be sure
to do.
High
Temperature.
Be sure
to do.
Left side:
Min. 500mm
Do Not Install Indoors.
This will cause carbon
Prohibited
monoxide poisoning and a
potential fire hazard.
When a gas leak is noticed:
1. Stop use immediately
2. Close the gas valve
3. Contact your gas supplier immediately
If you detect abnormal combustion
or abnormal odours, or during an
earthquake, tornado or re:
1. Turn off the hot water supply
2. Turn off the power to the water heater
3. Turn off gas and water supply valve.
4. Call Dux on AU 1300 365 115.
Check the temperature
of the running hot water
before entering the
shower.
Check the temperature
before stepping into
the bath tub.
Leave the proper clearance between
the water heater and nearby objects
(trees, timber, boxes with ammable
materials etc.).
Upper:
Min. 500mm
Right side:
Min. 500mm
Front:
Sug. 600mm
Part: XXXXX Rev XX
3
Important Safety Information
Owner's Guide
Prohibited
Prohibited
Prohibited
Do not place the unit in an indoor
environment by means of adding walls
and ceiling (Do not enclose using
corrugated sheets, etc.)
Unit
Carbon monoxide poisoning or fire may
occur as a result.
Carbon Monoxide Poisoning
Hazard. Do not install this water
heater in a mobile home, recreation
vehicle or on a boat.
Do not place combustibles such as
laundry, newspapers, oils etc. near
the heater.
Check that the data label.
(left side of casing)
Be sure
to do.
Ex. For Natural Gas (21ENB5N)
xxxxxxxx
Installation and service must be
performed by a quali ed insraller,
Be sure
to do.
Prohibited
service agency or the gas supplier.
Do not use hair spray or spray
detergent in the vicinity of the
heater.
xx
xx
xx
xx xx
Unit
Do not use combustible chemicals
such as oil, petrol, benzene etc. in
Prohibited
the near the water heater or the
exhaust vent.
Do not store or use petrol or other
ammable vapours and liquids in the
Prohibited
vicinity of this or any other appliance.
Do not place or use a spray can
near the water heater or the exhaust
Prohibited
vent.
4
Prohibited
Do not allow small children to play
unsupervised in the bathroom or with
the water heater .
Do not allow small children to bathe
unsupervised.
This appliance is not intended for use
by persons (including children) with
reduced physical, sensory or mental
capabilities, or lack of experience and
knowledge, unless they have been given
supervision or instruction concerning
use of the appliance by a person
responsible for their safety.
Part: XXXXX Rev XX
Owner's Guide
Don’t touch
with a wet
hand.
Don’t
disassemble
the equipment.
Earth
Be sure
to do.
Do not touch the power
cord with wet hands.
Electric
Shock.
Contact a quali ed service
technician for any necessary
repairs, service or maintenance.
Be sure to electrically earth the
unit.
Keep power cord free of dust.
Contact Dux before using with
a solar heater.
Be sure
to do.
CAUTION
Do not turn off the water heater
while someone is bathing.
Prohibited
Do not cover the water heater, store
trash or debris near it, or in any way
Prohibited
block the ow of fresh air to the unit.
Prohibited
Prohibited
Prohibited
Be sure
to do.
Do not use the water heater for
other than hot water supply, shower
and bath.
Do not use a broken or modi ed power cord.
Do not bind, bend or stretch power cords.
Do not scratch, modify, or subject
them to impact or force. If the supply
cord is damaged, it must be replaced
by the manufacturer, its service agent
or similarly quali ed persons in order to
avoid a hazard.
Do not exchange a remote controler
cord without notice.
To prevent burns or scalding, turn
off the power button and wait until
the equipment cools before performing maintenance.
Prohibited
Prohibited
Don’t
touch.
Do not install in locations where
excessive dust or debris will be
in the air.
Do not use condensate, discharged
from the drain pipe, for drinking or for
consumption by animals.
Do not touch the exhaust vent
during or immediately after
operation of the water heater.
Part: XXXXX Rev XX
5
Important Safety Information
CAUTION
Owner's Guide
Do not drink water that has been inside the
unit for an extended period of time. Do not
drink the rst use of hot water from the
unit in the morning.
Clean the lter on the water inlet as
frequently as required. The quality of your
local water will affect the frequency required.
Keep the area around the unit clean.
If boxes, weeds, cobwebs, cockroaches etc. are in
the vicinity of the unit, damage or fire can result.
Do not install the equipment where the
exhaust will blow on walls or windows.
Treat hard, acidic or otherwise impure
supply water with approved methods to
ensure full warranty coverage.
Problems resulting from scale formation
are not covered by the warranty.
Do not disassemble the remote controller.
Do not use benzene, oil or fat detergents
to clean the remote controller.
This may cause deformation.
Do not get the remote controller wet.
ECB1D and ECB2D are water resistant,
too much water can cause damage.
ECM1D is not water resistant.
Do not splash water on the remote
controller. Do not expose the remote
controller to steam.
Do not locate the remote controller near stoves or
ovens, this may cause damage or failure.
Preventing damage from freezing (
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.
p.22)
Do not run water through the unit when
unit is not on.
When discharging hot water, make sure the unit is ON.
If water is run through the unit with the unit
OFF, water may condense inside the unit and cause
incomplete combustion or damage to the internal
electrical components.
6
Power must be switched on at all times for
antifrost protection to work.
If it is snowing, check the air inlet, exhaust
gas vent and exhaust vent terminal for
blockage.
Do not use parts other than those speci ed
for this equipment.
Part: XXXXX Rev XX
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 ........................................................................................ 13
Setting and Using the Water Heater........................................................... 14
Controller Priority Function ........................................................................ 16
Muting the Remote Controller .................................................................... 17
Bath Fill Function ........................................................................................ 18
Call Function ................................................................................................ 21
Frost Protection ........................................................................................... 22
Regular Maintenance................................................................................... 23
Troubleshooting .......................................................................................... 25
Follow-up Service ........................................................................................ 29
Speci cations .............................................................................................. 30
Manufacturer’s Warranty ............................................................................ 34
Part: XXXXX Rev XX
7
General Parts
Main Unit
Outdoor Wall Mounted, Power ue Model
Flue Exhaust
Front Cover
Owner's Guide
Air Inlet
Inlet water 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
* The above illustration shows an example of installation.
The exact installation configuration may be slightly different.
8
Ex. 26ECB5N
Part: XXXXX Rev XX
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
For other settings.
( p.14-15)
Display
Time Set Button
To set or lndicate Time
of day. (
Bath Fill Volume Button
For setting the amount
of water that is delivered.
p.13)
( p.18 -20)
* Before use, remove the protective sheet from the remote controller surface.
Display
The illustration below shows the remote controller display.
What is actually displayed depends on how the water heater is set.
Burner on Indicator
Operation Button
For turning the water
heater on or off.
Bath Fill Button
To activate Bath Fill.
To set Bath Fill
MAIN
ECM1D
Bath Fill Temperature Indicator
temperature.
( p.18 -20)
When burning, the
indicator is lit.
Priority Indicator
When this indicator is lit,
the hot water temperature
can be set.
Part: XXXXX Rev XX
( p.16)
Error Code Clock Bath Fill Volume setting
A number will flash if
a failure occurs.
( p.28)
When Time Set button
is pushed, the clock is
displayed.
( p.13)
When this indicator is lit,
bath fill temperature is
displayed.
Temperature setting
Bath Fill Temperature setting
( p.18 -20)
(Eg.: 40°C)
(Eg.: 40°C)
( p.18 - 20)
9
Bathroom Controller (ECB1D) <Optional>
What is actually displayed depends on how the water heater is set.
Owner's Guide
Setting Buttons
For setting the hot
water temperature
( p.14 -15)
For other settings.
Display
Call Button
To sound alarm at all
remote controls.
( p.21)
BATHROOM
Priority Button
To transfer control from
another remote.
( p.16)
* Before use, remove the protective sheet from the remote controller surface.
Display
The illustration below shows the remote controller display.
What is actually displayed depends on how the water heater is set.
ECB1D
Operation Button
For turning the water
heater on or off.
Bath Fill Button
To activate Bath Fill.
To set Bath Fill
temperature.
( p.18 -20)
Burner on Indicator
When burning, the
indicator is lit.
Priority Indicator
When this indicator is lit,
the hot water temperature
can be set.
10
( p.16)
Bath Fill Temperature Indicator
When this indicator is lit,
bath fill temperature is
displayed.
( p.18 -20)
Temperature setting
Bath Fill Temperature setting
Error Code Bath Fill Volume setting
A number will flash if
a failure occurs.
( p.28)
(Eg.: 40°C)
(Eg.: 40°C)
( p.18 - 20)
Part: XXXXX Rev XX
Owner's Guide
Bathroom 2 Controller (ECB2D) <Optional>
What is actually displayed depends on how the water heater is set.
Display
ON/OFF
BATHROOM2
ECB2D
* Before use, remove the protective sheet from the remote controller surface.
Display
The illustration below shows the remote controller display.
What is actually displayed depends on how the water heater is set.
Operation Button
For turning the water
heater on or off.
Setting Buttons
For setting the hot
Water temperature.
( p.14 -15)
Priority Indicator
When this indicator is lit,
the hot water temperature
can be set.
( p.16)
Burner on Indicator
When burning, the
indicator is lit.
Part: XXXXX Rev XX
Temperature setting
(Eg.: 40°C)
Error Code
A number will flash if
a failure occurs.
( p.28)
11
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