STIEBEL ELTRON | DHM 6 - 220 | Operation Instruction | Stiebel Eltron DHM 6 - 220 Operation Instruction

Stiebel Eltron DHM 6 - 220 Operation Instruction
OPERATION AND INSTALLATION
Hydraulically controlled mini instantaneous water heater
»» DHM 6 220
CONTENTS | Special information

SPECIAL INFORMATION
OPERATION
1.
General information�����������������������������������������3
2.
Safety����������������������������������������������������������5
3.
Appliance description���������������������������������������6
4.
Settings�������������������������������������������������������6
5.
Cleaning, care and maintenance���������������������������6
6.
Troubleshooting����������������������������������������������7
INSTALLATION
7.
Safety����������������������������������������������������������7
8.
Appliance description���������������������������������������8
9.
Preparations��������������������������������������������������8
10.
Installation����������������������������������������������������9
11.
Commissioning��������������������������������������������� 12
12.
Shutting down���������������������������������������������� 13
13.
Troubleshooting�������������������������������������������� 13
14.
Maintenance������������������������������������������������ 14
15.
Specification������������������������������������������������ 15
GUARANTEE
ENVIRONMENT AND RECYCLING
SPECIAL INFORMATION
-- The appliance may be used by children aged 3
and up and persons with reduced physical, sensory or mental capabilities or a lack of experience
and know-how, provided that they are supervised
or they have been instructed on how to use the
appliance safely and have understood the resulting risks. Children must never play with the appliance. Children must never clean the appliance
or perform user maintenance unless they are
supervised.
-- During operation, the tap can reach temperatures
in excess of 50 °C. There is a risk of scalding at
outlet temperatures in excess of 43 °C.
-- Ensure the appliance can be separated from the
power supply by an isolator that disconnects all
poles with at least 3 mm contact separation.
-- The specified voltage must match the mains
voltage.
2 | DHM 6 220www.stiebel-eltron.com
-- In the case of damage, the power cable must only
be replaced by a qualified contractor authorised
by the manufacturer using the original spare
part.
-- Secure the appliance as described in chapter „Installation / Installation“.
-- Observe the maximum permissible pressure (see
chapter „Specification / Data table“).
OPERATION
1.
The chapter “Operation” is intended for appliance users and qualified contractors.
The chapter “Installation” is intended for qualified contractors.
Note
Read these instructions carefully before using the appliance and retain them for future reference.
Pass on the instructions to a new user if required.
-- 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“.
General information
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.
ff
Steps to prevent the risk are listed.
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ENGLISH
Operation
General information
Operation
General information
1.1.2 Symbols, type of risk
Symbol
!
1.2
Other symbols in this documentation
Type of risk
Injury
Note
Notes are bordered by horizontal lines above and below
the text. General information is identified by the symbol
shown on the left.
ff
Read these texts carefully.
Electrocution
Burns
(burns, scalding)
1.1.3 Keywords
KEYWORD
DANGER
WARNING
CAUTION
Meaning
Failure to observe this information will result in serious
injury or death.
Failure to observe this information may result in serious
injury or death.
Failure to observe this information may result in non-serious or minor injury.
Symbol
!
Material losses
(appliance damage, consequential losses and environmental pollution)
Appliance disposal
ff
This symbol indicates that you have to do something. The action you need to take is described step by step.
1.3
Units of measurement
Note
Unless specified otherwise, all dimensions are given in
mm.
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2.
Safety
2.1
Intended use
!
This appliance is intended for domestic use. It can be used safely
by untrained persons. The appliance can also be used in a non-domestic environment, e.g. in a small business, as long as it is used
in the same way.
This appliance is designed to heat DHW. The appliance is designed
for one hand washbasin.
Any other use beyond that described shall be deemed inappropriate. Observation of these instructions and of instructions for any
accessories used is also part of the correct use of this appliance.
2.2
General safety instructions
DANGER Scalding
During operation, the tap can reach temperatures in excess of 50 °C.
There is a risk of scalding at outlet temperatures in excess of 43 °C.
DANGER Electrocution
Any damaged power cables must be replaced by a qualified electrician. This prevents potential hazards from
arising.
WARNING Injury
The appliance may be used by children aged 3 and up and
persons with reduced physical, sensory or mental capabilities or a lack of experience and know-how, provided
that they are supervised or they have been instructed on
how to use the appliance safely and have understood
the resulting risks. Children must never play with the
appliance. Children must never clean the appliance or
perform user maintenance unless they are supervised.
!
Material losses
Protect the appliance and tap against frost.
!
Material losses
Only use the special aerator provided. Prevent scale
build-up at the tap outlets (see chapter "Cleaning, care
and maintenance").
2.3
Test symbols
See type plate on the appliance.
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ENGLISH
Operation
Safety
Operation
Appliance description
3.
Appliance description
The hydraulically controlled mini instantaneous water heater
heats the water directly at the draw-off point. The heating system
starts automatically when the tap is opened. The short pipe runs
ensure that energy and water losses are minimal.
Increasing the temperature
ff
Reduce the flow rate at the tap.
Reducing the temperature
ff
Open the tap further or add more cold water.
The DHW output depends on the cold water temperature, the heating output and the flow rate.
Following an interruption of the water supply
The bare wire heating system is suitable for hard and soft water
areas. This heating system has a low susceptibility to scale buildup. The heating system ensures quick and efficient DHW provision
at the hand washbasin.
5.
Fitting the special aerator supplied provides an optimum water jet.
4.
Settings
The appliance heating system switches on automatically as soon
as you open the DHW valve at the tap or activate the sensor of a
sensor tap. The water is heated. The water temperature can be
adjusted at the tap:
See chapter “Commissioning / Recommissioning”.
Cleaning, care and maintenance
ff
Never use abrasive or corrosive cleaning agents. A damp
cloth is sufficient for cleaning the appliance.
ff
Check the taps/valves regularly. Limescale deposits at the
spouts can be removed using commercially available descaling agents.
ff
Have the electrical safety of the appliance regularly checked
by an electrician.
ff
Regularly descale or replace the special aerator (see chapter
“Appliance description / Accessories”).
For the start volume, see chapter “Specification / Data table / On”.
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6.
Troubleshooting
Problem
The appliance will not
start despite the DHW
valve being fully open.
Cause
No power to the appliance.
Remedy
Check the fuses/MCBs in
your fuse box.
The aerator in the tap is Clean and/or descale the
scaled up or dirty.
aerator or replace the
special aerator.
The water supply has
Vent the appliance and
been interrupted.
the cold water inlet line
(see chapter "Settings").
If you cannot remedy the fault, notify your qualified contractor. To
facilitate and speed up your request, provide the serial number
from the type plate (000000-0000-000000).
DHM 6-220 Nr.: 000000-0000-000000
INSTALLATION
7.
Safety
Only a qualified contractor should carry out installation, commissioning, 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 max. permissible inlet temperature. Higher
temperatures may damage the appliance. You can limit
the inlet temperature by means of a central thermostatic
valve (see chapter "Appliance description / Accessories").
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ENGLISH
Installation
Troubleshooting
Installation
Appliance description
7.2
Instructions, standards and regulations
8.2
Note
Observe all applicable national and regional regulations
and instructions.
Special aerator “SR”*
-- SR 5: Part number 270582
The specific electrical resistance of the water must not fall below
that stated on the type plate. In a linked water network, factor in
the lowest electrical resistance of the water (see chapter “Specification / Data table”). Your water supply utility will advise you of
the specific electrical water resistance or conductivity.
8.
Appliance description
8.1
Standard delivery
The following are delivered with the appliance:
-- Sieve inside the cold water inlet
-- Special aerator “SR”
-- Connection hose 3/8, 500 mm long, with gaskets*
-- Tee 3/8*
-- Company logo for oversink installation
*for the connection as pressure-tested appliance
Accessories
* For use in thread M22/M24.
Pressure-tested tap
-- WEH Sensor tap for washbasins
ZTA 3/4 - central thermostatic valve
Thermostatic valve for central premixing, for example for operating an instantaneous water heater with a solar thermal system.
9.
Preparations
ff
Flush the water line thoroughly.
Water installation
A safety valve is not required.
Taps
ff
Use suitable taps (see chapter “Appliance description /
Accessories”).
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Installation
Installation
10.2 Installation options
Undersink installation, pressure-tested, with pressure-tested
tap
10. Installation
10.1 Installation site
Ensure that the lateral fixing screws for the cover are always accessible.
The appliance is only suitable for undersink installation (water
connections at the top).
26_02_05_0093
Install the appliance in a room free from the risk of frost and near
the draw-off tap.
DANGER Electrocution
Protection rating IP25 is only ensured if the appliance
back panel is fitted.
ff
Always fit the appliance back panel.
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ENGLISH
Note
Fitting the special aerator supplied provides an optimum
water jet.
Installation
Installation
10.2.1 Appliance installation
ff
Mount the appliance on the wall.
Note
The wall must have a sufficient load-bearing capacity.


ff
Undo the cover fixing screws by two turns.
ff
Undo the snap fastener using a screwdriver.
ff
Remove the appliance cover with the heater towards the
front.
ff
Using pliers, break out the knock-out for the power cable
in the appliance cover. Correct the contours with a file if
necessary.
ff
Use the appliance back panel as a drilling template.
ff
Secure the appliance back panel to the wall with suitable
rawl plugs and screws.



26_02_05_0085

26_02_05_0083

26_02_05_0084

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Installation
Installation
10.2.3 Oversink installation, non-pressurised, with nonpressurised tap
ENGLISH
ff
Route the power cable through the cable entry in the back
panel.
ff
Hook in the appliance cover with the heater at the bottom.
ff
Click the heater into place using the snap fastener.
ff
Secure the appliance cover with the cover fixing screws.
10.2.2 Tap installation
Material losses
When making the connections, counter the torque on the
appliance using a size 14 spanner.
26_02_05_0081_
!
ff
Fit the 3/8 connection hose provided and the 3/8 tee.
ff
Install the tap. For this, also observe the tap operating and
installation instructions.
Tap installation
ff
Fit the tap according to the illustration. For this, also observe
the tap operating and installation instructions.
!
Material losses
When making the connections, counter the torque on the
appliance using a size 14 spanner; see chapter "Installation alternatives / Undersink installation".
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Installation
Commissioning
DANGER Electrocution
Carry out all electrical connection and installation work
in accordance with regulations.
DANGER Electrocution
Ensure that the appliance is earthed.
Ensure the appliance can be separated from the power
supply by an isolator that disconnects all poles with at
least 3 mm contact separation.
DANGER Electrocution
In the delivered condition, these appliances are equipped
with a power cable.
Connection to a permanent power supply is possible,
provided the fixed cable has a cross-section that is at
least equal to that of the standard power cable of the
appliance. A maximum cross-section of 3 x 6 mm² may
be used.
!
Material losses
When making the connection to a standard safety socket
(in the case of a power cable with plug), ensure that the
socket is freely accessible after the appliance has been
installed.
!
Material losses
Take note of the type plate. The specified voltage must
match the mains voltage.
ff
Connect the power cable as shown in the wiring diagram
(see chapter “Specification / Wiring diagram”).
11. Commissioning
11.1 Initial start-up
26_02_05_0087
10.3 Connecting the power supply
ff
Fill the appliance by running the tap several times until the
pipework and appliance are free of air.
ff
Carry out a tightness check.
ff
Insert the power cable plug, if present, into the standard
safety socket or set the fuse/MCB.
ff
Check the function of the appliance.
11.2 Appliance handover
ff
Explain the appliance function to users and familiarise them
with its operation.
12 | DHM 6 220www.stiebel-eltron.com
Installation
Shutting down
11.3 Recommissioning
!
Material losses
Following an interruption of the water supply, recommission the appliance by carrying out the following steps,
in order to prevent irreparable damage to the bare wire
heating system.
ff
Isolate the appliance from the power supply. Pull the power
cable plug, if present, from the socket, or remove the fuse/
reset the MCB.
ff
See chapter “Initial start-up”.
13. Troubleshooting
Problem
The appliance will not
start despite the DHW
valve being fully open.
Cause
The aerator in the tap is
scaled up or dirty.
Remedy
Clean and/or descale the
aerator or replace the
special aerator.
The sieve in the cold
Clean the sieve after
water line is blocked.
shutting off the cold
water inlet line.
The heater is faulty.
Check the resistance of
the heating system and
replace the appliance if
required.
The safety pressure limit- Remedy the cause of
er has responded.
the fault. Isolate the appliance from the power
supply and depressurise
the water line. Activate
the safety pressure
limiter.
12. Shutting down
ff
Isolate the appliance from the power supply by means of the
fuse/MCB in your fuse box or by pulling the power cable plug
from the socket.
ff
Drain the appliance (see chapter “Maintenance”).
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ENGLISH
ff
Make users aware of potential dangers, especially the risk of
scalding.
ff
Hand over these instructions.
Installation
Maintenance
14. Maintenance
Activating the safety pressure limiter
DANGER Electrocution
Before any work on the appliance, disconnect all poles
from the power supply.
Draining the appliance
1
1 1-pole safety pressure limiter
D0000059721
DANGER Scalding
Hot water may escape during the draining process.
If the appliance needs to be drained for maintenance or to protect
the whole installation when there is a risk of frost, proceed as
follows:
ff
Close the shut-off valve in the cold water inlet line.
ff
Open the draw-off valve.
ff
Undo the water connections on the appliance.
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Cleaning the strainer
15. Specification
You can clean the fitted strainer after removing the cold water
supply pipe.
15.1 Dimensions and connections
c01
ENGLISH
Installation
Specification
c06
20
Appliance storage
ff
Store the dismantled appliance in a room free from the risk
of frost, as water residues remaining inside the appliance can
freeze and cause damage.
165
95
143
4,8
b02
120
190
b03
82
D0000018336
Checking the earth conductor
ff
Check the earth conductor (in Germany e.g. BGV A3) on the
earth conductor contact of the power cable and on the appliance connector.
28
26_02_05_0065_
30
DHM
b02
b03
c01
c06
Entry electrical cables I
Entry electrical cables II
Cold water inlet
DHW outlet
Male thread
Male thread
G 3/8 A
G 3/8 A
Replacing the power cable
ff
If replacing the cable, use a power cable with 4 mm²
cross-section.
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Installation
Specification
15.2 Wiring diagram
15.3 Increasing the temperature
15.2.1 DHM 6 220, 1/N/PE ~ 220 V
40
35
30
25
1
10
2
p>
LN
LN
1 Safety pressure limiter
2 Pressure differential switch
L = brown
N = blue
!
Material losses
ff
In the case of a permanent power supply, connect
the power cable according to the designations on
the socket terminals.
3
4
5
6
7
X Flow rate in l/min
Y Temperature increase in K
D0000040409
2
15
V>
D0000041401
20
15.4 Application areas
For the specific electrical resistance and specific electrical
conductivity, see “Data table”.
Standard specification at 15 °C
20 °C
25 °C
Spec. Spec. conductiv- Spec. Spec. conductiv- Spec. Spec. conductivresist- ity σ ≤
resist- ity σ ≤
resist- ity σ ≤
ance
ance
ance
ρ≥
ρ≥
ρ≥
Ωcm mS/m μS/cm
Ωcm mS/m μS/cm
Ωcm mS/m μS/cm
1100
91
909
970
103
1031
895
112
1117
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15.5 Data table
DHM 6 220
220815
Electrical details
Rated voltage
Rated output
Rated current
Fuses
Frequency 2
Phases
Specific resistance ρ15 ≥ (at ϑcold ≤25 °C)
Specific conductivity σ15 ≤ (at ϑcold ≤25 °C)
Specific resistance ρ15 ≥ (at ϑcold >25 °C)
Specific conductivity σ15 ≤ (at ϑcold >25 °C)
Max. mains impedance at 220 V / 50 Hz
Connections
Water connection
Values
Max. permissible inlet temperature
ON
Pressure drop at flow rate
Flow rate for pressure drop
DHW delivery
Δϑ at DHW delivery
Hydraulic data
Rated capacity
Versions
Oversink installation
Undersink installation
V
kW
A
A
Hz
Ω cm
μS/cm
Ω cm
μS/cm
Ω
220
6,0
27,3
32
50
1/N/PE
1100
909
1100
909
0,358
Open vented type
Sealed unvented type
Protection class
Insulation block
Heating system heat generator
Cap and back panel
Colour
IP-Rating
Energy data
Energy efficiency class
Dimensions
Height
Width
Depth
Weights
Weight
DHM 6 220
X
X
1
Plastic
Bare wire
Plastic
white
IP25
A
mm
mm
mm
143
190
82
kg
1,4
G 3/8 A
°C
l/min
MPa
l/min
l/min
K
35
> 2,6
0,09
2,6
3,4
25
l
0,1
X
X
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ENGLISH
Installation
Specification
Installation
Specification
Guarantee
The guarantee conditions of our German companies do not
apply to appliances acquired outside of Germany. In countries
where our subsidiaries sell our products a guarantee can only
be issued by those subsidiaries. Such guarantee is only granted if the subsidiary has issued its own terms of guarantee. No
other guarantee will be granted.
We shall not provide any guarantee for appliances acquired in
countries where we have no subsidiary to sell our products.
This will not affect warranties issued by any importers.
Environment and recycling
We would ask you to help protect the environment. After use,
dispose of the various materials in accordance with national
regulations.
18 | DHM 6 220www.stiebel-eltron.com
ENGLISH
GUARANTEE | ENVIRONMENT AND RECYCLING
www.stiebel-eltron.comDHM 6 220 | 19
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4<AMHCMN=hcfja >
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Irrtum und technische Änderungen vorbehalten! | Subject to errors and technical changes! | Sous réserve d‘erreurs
et de modifications techniques! | Onder voorbehoud van vergissingen en technische wijzigingen! | Salvo error o
modificación técnica! | Excepto erro ou alteração técnica | Zastrzeżone zmiany techniczne i ewentualne błędy | Omyly a
technické změny jsou vyhrazeny! | A muszaki változtatások és tévedések jogát fenntartjuk! | Отсутствие ошибок не
гарантируется. Возможны технические изменения. | Chyby a technické zmeny sú vyhradené! Stand 9147
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