STIEBEL ELTRON DEL 13 Plus AU Instruction Manual

OPERATION AND INSTALLATION
Electronically controlled comfort instantaneous water heater
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Tmax
T

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CONTENTS
SPECIAL INFORMATION
OPERATION
1. General information �����������������������������������������3
1.1 Safety instructions����������������������������������������������� 3
1.2 Other symbols in this documentation ����������������������� 4
1.3 Units of measurement ������������������������������������������ 4
2. Safety����������������������������������������������������������4
2.1 Intended use������������������������������������������������������ 4
2.2 General safety instructions ������������������������������������ 4
2.3 Test symbols ������������������������������������������������������ 4
3. Appliance description ���������������������������������������4
4. Settings and displays ����������������������������������������5
4.1 User interface ���������������������������������������������������� 5
4.2 Display symbols �������������������������������������������������� 5
4.3 Setting the temperature���������������������������������������� 5
4.4 Internal anti-scalding protection (qualified contractors) 5
4.5 Setting the Tmax temperature limit�������������������������� 5
4.6 Allocating temperature memory buttons ������������������� 6
4.7 Settings menu ���������������������������������������������������� 6
4.8 Selecting ECO level ���������������������������������������������� 6
4.9 Inlet temperature information �������������������������������� 6
4.10 Recommended settings ���������������������������������������� 6
5. Cleaning, care and maintenance ���������������������������6
6. Troubleshooting ����������������������������������������������6
INSTALLATION
7. Safety����������������������������������������������������������7
7.1 General safety instructions ������������������������������������ 7
7.2 Instructions, standards and regulations �������������������� 7
8. Appliance description ���������������������������������������8
8.1 Standard delivery������������������������������������������������ 8
8.2 Accessories�������������������������������������������������������� 8
9. Preparation ���������������������������������������������������8
9.1 Installation location ��������������������������������������������� 8
9.2 Minimum clearances�������������������������������������������� 8
9.3 Water installation������������������������������������������������ 8
10. Installation����������������������������������������������������9
10.1 Standard installation�������������������������������������������� 9
11. Commissioning ��������������������������������������������� 11
11.1 Preparation ������������������������������������������������������ 11
11.2 Initial start-up��������������������������������������������������� 11
11.3 Recommissioning����������������������������������������������� 12
12. Appliance shutdown ��������������������������������������� 12
13. Alternative installation methods ������������������������� 12
13.1 Electrical connection from above on unfinished walls�� 12
13.2 Electrical connection on unfinished walls with short
power cable������������������������������������������������������ 13
13.3 Electrical connection on finished walls �������������������� 13
13.4 Water installation on unfinished walls ��������������������� 13
13.5 Wall mounting bracket when replacing an appliance��� 14
13.6 Installation with offset tiles����������������������������������� 14
13.7 Pivoting appliance cover �������������������������������������� 14
13.8 Operation with preheated water ���������������������������� 14
14. Service information ���������������������������������������� 14
15. Troubleshooting �������������������������������������������� 15
16. Maintenance ������������������������������������������������ 16
17. Specification ������������������������������������������������ 16
17.1 Dimensions and connections ��������������������������������� 16
17.2 Wiring diagram ������������������������������������������������� 17
17.3 DHW output������������������������������������������������������ 17
17.4 Application areas/ Conversion table ����������������������� 17
17.5 Pressure drop ��������������������������������������������������� 17
17.6 Fault conditions ������������������������������������������������� 17
17.7 Data table �������������������������������������������������������� 18
ENVIRONMENT AND RECYCLING
WARRANTY

ENGLISH
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SPECIAL INFORMATION | OPERATION
General information
SPECIAL INFORMATION
- The appliance may be used by children aged3
and older and persons with reduced physical,
sensory or mental capabilities or a lack of ex-
perience and know-how, provided that they
are supervised or they have been instructed
on how to use the appliance safely and have
understood the potential risks. Children must
never play with the appliance. Children must
never clean the appliance or perform user
maintenance unless they are supervised.
- The tap can reach temperatures of up to
50°C. There is a risk of scalding at outlet tem-
peratures in excess of 43 °C.
- The appliance is suitable for supplying a
shower (shower operation). When using pre-
heated water, it must be ensured that the inlet
temperature does not exceed 50°C.
- Ensure the appliance can be separated from
the power supply by an isolator that discon-
nects all poles with at least 3mm contact
separation.
- The specified voltage must match the power
supply.
- The appliance must be connected to earth.
- The appliance must be permanently connect-
ed to fixed wiring.
- Secure the appliance as described in chapter
"Installation/ Installation".
- Observe the maximum permissible pressure
(see chapter "Installation/ Specification/ Data
table").
- The specific water resistivity of the mains
water supply must not be undershot (see
chapter "Installation/ Specification/ Data
table").
- Drain the appliance as described in chapter
"Installation/ Maintenance/ Draining the
appliance".
OPERATION
1. General information
The chapters "Special information" and "Operation" are intended
for both users and qualified contractors.
The chapter "Installation" is intended for qualified contractors.
Note
Read these instructions carefully before using the appli-
ance and retain them for future reference.
Pass on the instructions to a new user if required.
1.1 Safety instructions
1.1.1 Structure of safety instructions
!
KEYWORD Type of risk
Here, possible consequences are listed that may result
from failure to observe the safety instructions.
 Steps to prevent the risk are listed.
1.1.2 Symbols, type of risk
Symbol Type of risk
Injury
Electrocution
Burns
(burns, scalding)
1.1.3 Keywords
KEYWORD Meaning
DANGER Failure to observe this information will result in serious
injury or death.
WARNING Failure to observe this information may result in serious
injury or death.
CAUTION Failure to observe this information may result in non-seri-
ous or minor injury.
!

OPERATION
Safety
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1.2 Other symbols in this documentation
Note
General information is identified by the adjacent symbol.
 Read these texts carefully.
Symbol Meaning
Material losses
(appliance damage, consequential losses and environmen-
tal pollution)
Appliance disposal
 This symbol indicates that you have to do something. The ac-
tion you need to take is described step by step.
1.3 Units of measurement
Note
All measurements are given in mm unless stated oth-
erwise.
2. Safety
2.1 Intended use
This appliance is suitable for heating domestic hot water or for
reheating preheated water. The appliance can supply one or more
draw-off points.
Water will not be reheated if the maximum inlet temperature for
reheating is exceeded.
The appliance is intended for domestic use. It can be used safely
by untrained persons. The appliance can also be used in non-do-
mestic environments, e.g.in small businesses, as long as it is
used in the same way.
Any other use beyond that described shall be deemed inappro-
priate. Observation of these instructions and of the instructions
for any accessories used is also part of the correct use of this
appliance.
2.2 General safety instructions
CAUTION Burns
The tap can reach temperatures of up to 50°C. There is a
risk of scalding at outlet temperatures in excess of 43 °C.
CAUTION Burns
If operating with preheated water, e.g.from a solar ther-
mal system, the DHW temperature may vary from the
selected set temperature.
!
WARNING Injury
The appliance may be used by children aged3 and older
and persons with reduced physical, sensory or mental
capabilities or a lack of experience and know-how, pro-
vided that they are supervised or they have been in-
structed on how to use the appliance safely and have
understood the potential risks. Children must never play
with the appliance. Children must never clean the ap-
pliance or perform user maintenance unless they are
supervised.
Where children or persons with limited physical, sensory or men-
tal abilities are allowed to use this appliance, we recommend a
permanent temperature limit. The following limitation options
are available:
- User adjustable: Temperature limit (e.g.for childproofing)
- Qualified contractor adjustable: Internal anti-scalding
protection.
!
WARNING
For continued safety of this appliance it must be in-
stalled, operated and maintained in accordance with
the manufacturer’s instructions.
!
Material losses
The user should protect the appliance and its tap against
frost.
2.3 Test symbols
See type plate on the appliance
Information for Australia/New Zealand:
Installation shall comply with standard AS/NZS 3500.4
3. Appliance description
The appliance switches on automatically as soon as you open the
hot water valve on the tap. When you close the tap, the appliance
switches off again automatically.
The appliance heats water as it flows through it. The DHW outlet
temperature can be variably adjusted. From a certain flow rate,
the control unit regulates the correct heating output, subject to
the temperature selected and the current cold water temperature.
The electronically controlled instantaneous water heater with au-
tomatic output matching maintains a consistent outlet tempera-
ture. It is irrespective of the inlet temperature, up to the maximum
output of the appliance.
If the appliance is operated with preheated water and the inlet
temperature exceeds the selected set temperature, the word "hot"
and the inlet temperature are displayed alternately, and the "hot"
LED flashes. The water is not heated further.
You can save and quickly call up different temperatures. With
the ECO function, the flow rate is limited to 3 preset levels. The
appliance is equipped with functions to permanently limit the
temperature (e.g.for childproofing). The backlight switches on
automatically as soon as water starts to flow through the appli-
!

OPERATION
Settings and displays
ENGLISH
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ance or you make a change on the user interface. The backlight
switches off automatically 5seconds after water stops flowing or
if no operation has been performed for 30seconds.
You can set the temperature unit and operating lock individually.
Heating system
The bare wire heating system is enclosed within a pressure-tested
plastic jacket. The heating system with its stainless steel heater
spiral is suitable for hard and soft water areas and is largely in-
susceptible to scale build-up. The heating system ensures rapid
and efficient DHW provision.
Note
The appliance is equipped with an air detector that large-
ly prevents damage to the heating system. If, during op-
eration, air is drawn into the appliance, the appliance
shuts down for one minute, thereby protecting the heat-
ing system.
4. Settings and displays
4.1 User interface
Tmax
T
D0000073010
2
3
1
5
4
1 Temperature selector
2 "hot" scald warning LED, at temperatures higher than 43°C
3 Temperature memory buttons 1 and 2
4 Display
5 ECO button with ECO level selection/ Menu call-up
4.2 Display symbols
Tmax
T
D0000073009
4
3
1
2
5
6
1 ECO indicator [rolling, levels 1 - 3, OFF]
2 Output bar [10 - 100%]
3 Segment display [°C/°F]
4 In the event of an appliance fault, a spanner appears
5 Operating lock [ON/OFF]
6 Tmax, displayed when temperature limit is enabled
4.3 Setting the temperature
Tmax
T
D0000073010
2
1
1 Set temperature selector (no end-stop):
"OFF", 20 - 50°C (factory setting)
2 Call up/assign preferred temperatures
Setting steps
Temperature range Step Temperature range Step
20°C ... 35°C 1°C 68°F ... 122°F 1°F
35°C ... 43 °C 0.5°C
43°C ... 50°C 1°C
!
Note
If the outlet temperature is not high enough when the
draw-off valve is fully open and the temperature selector
is set to maximum, then more water is flowing through
the appliance than can be heated by the heating system
(appliance working at maximum output).
 Use the ECO button to reduce the water volume until
the required temperature is achieved.
4.4 Internal anti-scalding protection (qualified
contractors)
The appliance has an anti-scalding protection function. The qual-
ified contractor can set an anti-scalding protection level for you
on request.
If the anti-scalding protection function (43°C) is enabled, "Tmax"
flashes continually once the set temperature has been reached.
4.5 Setting the Tmax temperature limit
Enabling the temperature limit
You can activate and adjust the temperature limit individually
(e.g.for childproofing).
 Press and hold buttons "1" and "2" for longer than 5seconds,
until "Tmax" and the temperature display flash.
 Select a temperature limit.
10seconds after completing the setting, the menu item will dis-
appear automatically.
If the high limit safety cut-out is enabled, "Tmax" is continuously
displayed.
Disabling the temperature limit
 Disable the high limit safety cut-out by pressing and holding
buttons "1" and "2" for longer than 5seconds.

OPERATION
Cleaning, care and maintenance
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4.6 Allocating temperature memory buttons
Memory buttons "1" and "2" can each be assigned a required
temperature.
 Select the required temperature.
 To store the required temperature, press and hold button
"1" or "2" for longer than 3seconds. The temperature flashes
once to confirm.
4.7 Settings menu
Menu Description
Temperature display Select °C or °F
Operating lock Select ON or OFF. Symbol displayed
Fault code display Displays E1...E3 if there is a fault on the appli-
ance. Call qualified contractor.
 To call up the menu, press and hold the ECO button for
longer than 5seconds.
 To select, turn the temperature selector.
 Press the ECO button once more.
 To quit the menu, press and hold the ECO button for longer
than 5seconds.
The menu switches off automatically if no operation has been
performed for 30seconds.
Note
To call up the menu when the operating lock is enabled,
press and hold the ECO button for longer than 10seconds.
4.8 Selecting ECO level
ECO level Display Flow rate limitation
Level 1 8l/min (factory setting)
Level 2 7l/min
Level 3 6l/min
No symbol No flow rate limit
 Briefly press the ECO button. Rolling selection, "Level1 - 3/
OFF".
4.9 Inlet temperature information
If the appliance is operated with preheated water and the inlet
temperature exceeds the selected set temperature, the word "hot"
and the inlet temperature are displayed alternately, and the "hot"
LED flashes.
4.10 Recommended settings
Your instantaneous water heater offers maximum precision and
maximum convenience in DHW provision. Should you nonetheless
be operating the appliance with a thermostatic valve, we recom-
mend that you:
 Adjust the set temperature on the appliance to maximum
temperature.
 Then set the required set temperature on the thermostatic
valve.
Saving energy
The following recommended settings will result in the lowest en-
ergy consumption:
- 38°C for hand washbasins, showers, bath
- 50°C for kitchen sinks
Internal anti-scalding protection (qualified contractors)
If required, the qualified contractor can set a permanent temper-
ature limit, for example in nurseries, hospitals,etc.
Recommended setting for operation with a thermostatic valve
and water preheated by solar energy
 Set the temperature at the instantaneous water heater to the
maximum temperature.
Following an interruption to the water supply
!
Material losses
To ensure that the bare wire heating system is not dam-
aged following an interruption to the water supply, the
appliance must be restarted by taking the following steps.
 Disconnect the appliance from the power supply by
removing the fuses/tripping the MCBs.
 Open the tap for one minute until the appliance and
its upstream cold water inlet line are free of air.
 Switch the power back ON.
5. Cleaning, care and maintenance
 Never use abrasive or corrosive cleaning agents. A damp
cloth is sufficient for cleaning the appliance.
 Check the taps regularly. Limescale deposits at the tap out-
lets can be removed using commercially available descaling
agents.
6. Troubleshooting
Problem Cause Remedy
The appliance will not
start despite the DHW
valve being fully open.
There is no power. Check the fuses/MCBs in
your fuse box/distribu-
tion board.
The aerator in the tap or
the shower head is scaled
up or dirty.
Clean and/or descale the
aerator or shower head.
The water supply has
been interrupted.
Vent the appliance and
the cold water inlet line.
When hot water is being
drawn off, cold water
flows for a short period.
The air detector de-
tects air in the water. It
switches off the heating
output briefly.
The appliance restarts
automatically after
1minute.
The required tempera-
ture cannot be set.
The high limit safety
cut-out and/or internal
anti-scalding protection
are enabled.
Deactivate the temper-
ature limit. The internal
anti-scalding protection
can only be adjusted by
the qualified contractor.
The flow rate is too low. ECO function is enabled. Select a different ECO
level or disable the ECO
function.
No settings can be made
on the programming
unit.
The operating lock is
enabled.
Press and hold the ECO
button for more than
10seconds to disable the
operating lock.

INSTALLATION
Safety
ENGLISH
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Note
After a power failure
Programming unit displays and selected settings are re-
tained following a power failure.
If you cannot remedy the fault, contact your qualified contractor.
To facilitate and speed up your request, provide the number from
the type plate (000000-0000-000000).
Nr.000000-0000-00000
Nr. 000000-0000-00000
D0000053312
INSTALLATION
7. Safety
Only a qualified contractor should carry out installation, commis-
sioning, maintenance and repair of the appliance.
7.1 General safety instructions
We guarantee trouble-free function and operational reliability only
if original accessories and spare parts intended for the appliance
are used.
!
Material losses
Observe the maximum inlet temperature. Higher tem-
peratures may damage the appliance. You can limit
the maximum inlet temperature by installing a central
thermostatic valve (see chapter "Appliance description/
Accessories").
CAUTION Burns
If the water supplied to the appliance is preheated,
please note the following points:
-The internally adjustable anti-scalding protection
and the temperature limit that is adjustable by the
user may be exceeded.
-The dynamic anti-scalding protection between the
appliance and the wireless remote control may not
be effective.
 In both cases, limit the temperature with an up-
stream central thermostatic valve.
WARNING Electrocution
This appliance contains capacitors which are discharged
when disconnected from the power supply. The capacitor
discharge voltage may briefly reach >60VDC.
7.2 Instructions, standards and regulations
Note
Observe all applicable national and regional regulations
and instructions.
- The IP25 (hoseproof) rating can only be ensured with a cor-
rectly fitted cable grommet.
- The specific electrical resistivity of the water must not fall
below that stated on the type plate. In a linked water net-
work, factor in the lowest electrical resistivity of the water.
Your water supply utility will advise you of the specific elec-
trical water resistivity or conductivity.

INSTALLATION
Appliance description
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8. Appliance description
8.1 Standard delivery
The following are delivered with the appliance:
- Wall mounting bracket
- Installation template
- 2 plugs
- 2 extensions
- 2 caps
- 2 tees
- 8 flat gaskets
- Strainer
- Plastic profile washer
- Plastic connection pieces/installation aid
- Cover and back panel guides
- Jumper for internal anti-scalding protection
8.2 Accessories
Wireless remote control
- FFB4SetAP
9. Preparation
9.1 Installation location
!
Material losses
Install the appliance in a room free from the risk of frost.
 Always install the appliance vertically and near the draw-off
point.
The appliance is suitable for undersink and oversink installation.
Undersink installation
D0000056242
1
2
1 Cold water inlet
2 DHW outlet
Oversink installation
D0000057030
12
1 Cold water inlet
2 DHW outlet
Note
 Mount the appliance on the wall. The wall must have
sufficient load bearing capacity.
9.2 Minimum clearances
≥50≥50
≥90
≥90
D0000060809
 Maintain the minimum clearances to ensure trouble-free op-
eration of the appliance and facilitate maintenance work.
9.3 Water installation
 Flush the water line thoroughly.
Taps/valves
Use appropriate pressure taps. Open vented taps are not per-
missible.
Permissible water line materials
- Cold water inlet line:
Pipes made from galvanised steel, stainless steel, copper or
plastic
- DHW outlet line:
Stainless steel pipe, copper pipe or plastic pipe
!
Material losses
If plastic pipework systems are used, take into account
the maximum inlet temperature and the maximum per-
missible pressure.
Flow rate
 Ensure that the flow rate for switching on the appliance is
achieved.
 Increase the water line pressure if the required flow rate is
not achieved when the draw-off valve is fully open.

INSTALLATION
Installation
ENGLISH
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10. Installation
Factory settings DEL13PlusAU DEL 18 Plus AU DEL27PlusAU
Internal anti-scalding protection Tmax (= 50°C) Tmax (= 50°C) Tmax (= 50°C)
Standard installation DEL13PlusAU DEL 18 Plus AU DEL27PlusAU
Electrical connection from below on unfinished walls x x x
Water connection, installation on finished walls x x x
For further installation options, see chapter "Alternative instal-
lation methods".
10.1 Standard installation
Opening the appliance
D0000053271
 Open the appliance by holding the fascia at the side and pull-
ing forwards away from the appliance cover. Undo the screw.
Pivot open the appliance cover.
D0000053272
 Remove the back panel by pressing the two locking tabs and
pulling the lower back panel section forwards.
Preparing the power cable on unfinished walls, for connection
from below
160
30
D0000053273
1
1 Cable entry installation aid
 Prepare the power cable.
Fitting the wall mounting bracket
D0000059694
 Mark out the holes for drilling using the installation tem-
plate. If the appliance is to be installed on finished walls, also
mark out the fixing hole in the lower section of the template.
 Drill the holes and secure the wall mounting bracket at 2
points using suitable fixing materials (screws and rawl plugs
are not part of the standard delivery).
 Fit the wall mounting bracket.
Preparing the water connection
!
Material losses
Carry out all water connection and installation work in
accordance with regulations.
D0000041720
 Remove the caps from the tees.
 Fit the plugs and the extensions with gaskets.
D0000041721
 Fit the strainer in the tee for the cold water inlet.
!
Damage to the appliance and environmental pollution
The strainer must be fitted for the appliance to function.
 When replacing the appliance, check that the strain-
er is present.

INSTALLATION
Installation
10 | DEL Plus AU www.stiebel-eltron.com
Installing the appliance
Note
If you are installing the appliance with flexible pipe con-
nections, also secure the bottom of the back panel with
a screw.
D0000077728
1
2
1 Cable entry installation aid
2 Cable grommet
Use the installation aid for easier wiring access through the cable
grommet (see plastic parts set supplied).
 Remove the cable grommet from the back panel.
 Pull the cable grommet over the cable sheath of the power
cable. For large cable cross-sections, enlarge the hole in the
cable grommet if necessary.
D0000077722
 Remove the transport protection plugs from the appliance
pipe connections.
 Bend the power cable 45° upwards.
 Route the power cable and cable grommet through the back
panel from the rear.
 Install the appliance on the threaded studs of the wall
mounting bracket.
 Press the back panel firmly into place, aligning it correctly.
 Lock the fixing toggle by turning it 90° clockwise.
 Pull the cable grommets into the back panel until both lock-
ing tabs engage.
D0000077727
 Screw the pre-assembled parts with flat gaskets to the cold
water and DHW pipes of the appliance.
 Fit the cold water inlet pipe and the DHW outlet pipe from
the pipework with flat gaskets to the extensions from the
appliance.
Making the electrical connection
WARNING Electrocution
Carry out all electrical connection and installation work
in accordance with relevant regulations.
WARNING Electrocution
The connection to the power supply must be in the form
of a permanent connection in conjunction with the re-
movable cable grommet. Ensure the appliance can be
separated from the power supply by an isolator that dis-
connects all poles with at least 3mm contact separation.
WARNING Electrocution
Ensure that the appliance is earthed.
!
Material losses
Observe the type plate. The specified rated voltage must
match the mains voltage.
 Connect the power cable to the mains terminal.
D0000053286
2
3
1
1 Lower back panel section
2 Connection piece in the standard delivery
3 Screw
If using threaded fittings on finished walls, the lower back panel
section can also be installed after fitting the taps. To do this, carry
out the following steps:
 Cut open the lower back panel section.
 Fit the lower back panel section by bending it out at the sides
and guiding it over the pipes.
 Insert the connection pieces into the lower back panel sec-
tion from behind.
 Click the lower back panel section into place.
Secure the lower back panel section with a screw.
!
Material losses
The cover plate of the lower back panel section must not
bend when installed.