STIEBEL ELTRON DHF 13 C-AU Specification sheet

OPERATING AND INSTALLATION
Hydraulically controlled compact instantaneous water heater
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CONTENTS | SPECIAL INFORMATION
SPECIAL INFORMATION
OPERATION
1. General information �����������������������������������������3
1.1 Safety instructions����������������������������������������������� 3
1.2 Other symbols in this documentation ����������������������� 3
1.3 Units of measurement ������������������������������������������ 3
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 �������������������������������������������������������4
4.1 Recommended tap/valve settings ���������������������������� 4
5. Cleaning, care and maintenance ���������������������������5
6. Troubleshooting ����������������������������������������������5
INSTALLATION
7. Safety����������������������������������������������������������6
7.1 General safety instructions ������������������������������������ 6
7.2 Instructions, standards and regulations �������������������� 6
8. Appliance description ���������������������������������������6
8.1 Standard delivery ����������������������������������������������� 6
9. Preparation ���������������������������������������������������6
9.1 Installation location ��������������������������������������������� 6
9.2 Water installation������������������������������������������������ 6
10. Installation����������������������������������������������������7
10.1 Standard installation�������������������������������������������� 7
10.2 Alternative installation methods������������������������������ 9
10.3 Completing the installation������������������������������������ 9
11. Commissioning ��������������������������������������������� 10
11.1 Initial start-up��������������������������������������������������� 10
11.2 Recommissioning����������������������������������������������� 10
12. Appliance shutdown ��������������������������������������� 10
13. Troubleshooting �������������������������������������������� 11
14. Maintenance ������������������������������������������������ 11
15. Specification ������������������������������������������������ 12
15.1 Dimensions and connections ��������������������������������� 12
15.2 Wiring diagram ������������������������������������������������� 12
15.3 DHW output������������������������������������������������������ 12
15.4 Pressure drop ��������������������������������������������������� 12
15.5 Data table �������������������������������������������������������� 13
ENVIRONMENT AND RECYCLING
WARRANTY
INSTALLATION TEMPLATE (IN THE CENTRE SECTION OF THESE
INSTRUCTIONS)
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 in excess of
60°C. There is a risk of scalding at outlet tem-
peratures in excess of 43 °C.
- The appliance is not suitable for supplying a
shower (shower operation).
- 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").
- Drain the appliance as described in chapter
"Installation/ Maintenance/ Draining the
appliance".

OPERATION
General information
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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.
f 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.
1.2 Other symbols in this documentation
Note
General information is identified by the adjacent symbol.
f Read these texts carefully.
Symbol Meaning
Material losses
(appliance damage, consequential losses and environmen-
tal pollution)
Appliance disposal
f 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.
!
!

OPERATION
Safety
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2. Safety
2.1 Intended use
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.
This pressure appliance is designed to heat DHW. The appliance
can supply one or more draw-off points.
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
During operation, the tap can reach temperatures in ex-
cess of 60 °C.
There is a risk of scalding at outlet temperatures in ex-
cess of 43 °C.
!
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.
!
WARNING
For continued safety of this appliance it must be in-
stalled, operated and maintained in accordance with
the manufacturer's instructions.
!
WARNING
This appliance may deliver water at high temperature.
Refer to the plumbing code of Australia (PCA), local re-
quirements and installation instructions to determine
if additional delivery temperature control is required.
!
Material losses
The user should protect the appliance and its tap against
frost.
2.3 Test symbols
See type plate on the appliance
3. Appliance description
The hydraulically controlled instantaneous water heater heats the
water as it flows through the appliance. The heating output starts
automatically as soon as a tap is opened and the starting flow
rate is exceeded (see chapter "Specification/ Data table"). Adjust
the DHW flow rate and temperature by mixing it with cold water
at the tap.
You can choose between 2 output stages. Two further output stages
are hydraulically controlled in relation to the flow rate.
The flow rate controller compensates for pressure fluctuations,
thereby ensuring largely stable temperatures. The controller limits
the throughput, thereby ensuring an adequate increase in the
DHW temperature at all times.
Heating system
The tubular heater heating system has a pressure-tested copper
cylinder. The heating system is suitable for soft water areas (for
application range, see chapter "Specification / Data table").
4. Settings
D0000042703
1 2
1 Low power
2 This setting is suitable, for example, for washing your hands.
At low flow rates, the appliance starts heating at half the se-
lected output.
3 Full power
This setting is suitable, for example, for baths, showers and
washing up. At low flow rates, the appliance starts heating
at half the selected output and at higher flow rates, the full
selected output.
f Click the output selector into the required position.
For start volumes, see chapter "Specification/ Data table/ On".
4.1 Recommended tap/valve settings
Note
If the outlet temperature is not high enough when the
draw-off valve is fully open at full power, then more water
is flowing through the appliance than can be heated by
the heating system (appliance is at its output limit).
f Reduce the water volume at the draw-off valve.
Low draw-off rate = high outlet temperature
High draw-off rate = low outlet temperature

OPERATION
Cleaning, care and maintenance
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Recommended settings when using a thermostatic valve
f Set the output selector to full power.
Twin lever tap
Output stage Application range
Partial load Washbasin
Full load Bath, sink
f Add cold water if the temperature is too high when the tap is
fully open.
Mono lever mixer
Output stage Application range
Full load All
f Turn the tap lever to the highest temperature.
f Fully open the tap.
f Increase the outlet temperature by closing the tap slowly.
f Reduce the outlet temperature by adding cold water or open-
ing the tap further, if possible.
Following an interruption to the water supply
!
Material losses
Following an interruption in the water supply, the appli-
ance must be recommissioned by carrying out the fol-
lowing steps, in order to prevent damage to the tubular
heater heating system.
f Disconnect the appliance from the power supply by
removing the fuses/tripping the MCBs.
f Open the tap for one minute until the appliance and
its upstream cold water inlet line are free of air.
f Switch the mains power back on again.
5. Cleaning, care and maintenance
f Never use abrasive or corrosive cleaning agents. A damp
cloth is sufficient for cleaning the appliance.
f 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 flow rate is too low
for switching on the
heating output. The aer-
ator in the tap is scaled
up or dirty.
Clean and/or descale the
aerator.
If you cannot remedy the fault, notify your qualified contractor. To
facilitate and speed up your enquiry, please provide the numbers
from the type plate on the appliance (000000-0000-00000):
Nr.: 000000-0000-00000
D0000042704

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INSTALLATION
Safety
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 ther-
mostatic valve.
7.2 Instructions, standards and regulations
Note
Observe all applicable national and regional regulations
and instructions.
Note
The installation of this appliance shall conform to the
Plumbing Code of Australia (PCA), and the New Zealand
Building Code.
Protection rating IP 24 (splashproof) can only be guaranteed with
a correctly fitted cable grommet.
8. Appliance description
8.1 Standard delivery
The following are delivered with the appliance:
- Wall mounting bracket
- Installation template (in the centre section of these
instructions)
- 2 extensions
- 2 caps
- 2 tees
- 2 plugs
- 8 flat gaskets
- Strainer
- Plastic profile washer
- 2 cover guides (for installation on finished walls)
9. Preparation
9.1 Installation location
!
Material losses
Install the appliance in a room free from the risk of frost.
f Always install the appliance vertically and near the draw-off
point.
The appliance is suitable for undersink and oversink installation.
Note
f Mount the appliance on the wall. The wall must have
sufficient load bearing capacity.
Undersink installation
D0000042705
1
2
1 Cold water inlet
2 DHW outlet
Oversink installation
D0000042706
12
1 Cold water inlet
2 DHW outlet
9.2 Water installation
- Never operate with preheated water.
- No safety valve is required.
f Flush the water line thoroughly.
f Ensure that the flow rate for switching on the appliance is
achieved (see chapter "Specification/ Data table", On). In-
crease the mains water pressure if the required flow rate is
not achieved with the draw-off valve fully opened.

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INSTALLATION
Installation
Taps/valves
Use appropriate pressure taps. Open vented taps are not per-
missible.
Thermostatic pressure valves must be suitable for hydraulically
controlled instantaneous water heaters.
Permissible water line materials
- Cold water inlet pipe:
Pipes made from galvanised steel, stainless steel, copper or
plastic
!
Material losses
If you use plastic pipework in the cold water inlet line,
you must observe the following condition:
f Install a metal pipe approx. 1 m in length at the ap-
pliance cold water connection. Then you can install
the plastic pipework.
- DHW outlet line:
Stainless steel pipe or copper pipe
!
Material losses
The instantaneous water heater is unsuitable for installa-
tion with plastic pipework in the DHW outlet line.
10. Installation
10.1 Standard installation
- Electrical connection from below on unfinished walls
- Water connection, installation on finished walls
For further installation options, see chapter "Alternative instal-
lation methods":
- Water installation on unfinished walls
- Power cable for finished walls
Opening the appliance
compact contr o l
compact contr
26�02�02�0396
f Turn the cap to the left and pull it forwards to remove it.
f Undo the screw.
f Pivot open the appliance cover.
Preparing the power cable
160
≥ 30
26�02�02�0887
Making the water connection
!
Material losses
Carry out all water connection and installation work in
accordance with regulations.
D0000041720
f Remove the caps from the tees.
f Fit the plugs and the extensions with gaskets at the tees.
D0000043188
f Fit the strainer and the plastic profile washer 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.
f When replacing the appliance, check that the strain-
er is present.
D0000043189
f Remove the transport protection plugs from the appliance
connections.
f Screw the pre-assembled parts with flat gaskets to the cold
water and DHW pipes of the appliance.

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INSTALLATION
Installation
f Fit the cold water inlet pipe and the DHW outlet pipe from
the pipework with flat gaskets to the extensions from the
appliance.
Fitting wall mounting bracket and appliance
26�02�02�0398
3
2
1
1 Wall mounting bracket
2 Threaded stud
3 Threaded bush
f Detach the wall mounting bracket from the appliance.
f Mark out the drill holes with the installation template (in the
centre section of these instructions). If the appliance is to be
installed with water connections on finished walls, also mark
out a fixing hole in the lower part of the template.
f Drill the holes and secure the wall mounting bracket with
2screws and 2rawl plugs (screws and rawl plugs are not
part of the standard delivery).
f Fit the wall mounting bracket.
f Mount the appliance on the threaded stud.
f Press the back panel firmly into place and secure it with the
threaded bush. You can compensate for a tile offset with the
nut on the threaded stud.
Installation with offset tiles
≤12
≥100
2
1
D0000043272
1 Minimum contact area of the appliance
2 Maximum tile offset
f Adjust the wall clearance with the nut on the threaded stud.
Press the back panel firmly into place and secure it with the
threaded stud.
Fitting the cable grommet
1
D0000042709
1 Cable grommet
f Fit the cable grommet.
Making the electrical connection
WARNING Electrocution
Carry out all electrical connection and installation work
in accordance with relevant regulations.
WARNING Electrocution
Connection to the power supply is only permissible in the
form of a permanent connection in conjunction with the
cable grommet. Ensure the appliance can be separated
from the power supply by an isolator that disconnects 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 voltage must match
the mains voltage.
f Connect the power cable to the mains terminal (see chapter
"Specification/ Wiring diagram").

DHF 13 C-AU, DHF 15 C-AU
Installation template

398 mm
383 mm