DH12103M - Boiler SIEMENS - Free user manual and instructions

Product type	Wall-mounted condensing gas boiler
Brand	Siemens
Model	DH12103M
Use	Central heating and domestic hot water production
Nominal power (heating)	24 kW
Nominal power (DHW)	28 kW
Energy class	A
Dimensions (H × W × D)	700 mm × 420 mm × 330 mm
Weight	32 kg
Power supply	230 V / 50 Hz
Gas type	Natural gas (G20) or propane (G31)
Gas pressure (G20)	20 mbar
Seasonal efficiency (EEI)	92 % (class A)
Main functions	Electronic ignition, flame modulation, weather compensation, frost protection
Maintenance and cleaning	Annual cleaning by a qualified professional; inspection of gaskets and burners
Safety	Overheat safety cut-out, low water safety, flue blockage safety, safety thermostat
Spare parts and repairability	Repairability index 8.4/10; parts available through Siemens network
General information	2-year warranty; compliant with CE, EN 15502 standards

Frequently Asked Questions - DH12103M SIEMENS

How to adjust the heating temperature?

Use the adjustment knob on the front panel. Turn it to set the desired temperature between 30 °C and 80 °C. Refer to the « Settings » section in the manual.

What to do in case of hot water failure?

First check that the water supply valve is open. Make sure the circulator is running (sound). If the problem persists, check the displayed error codes and contact a qualified installer.

How to bleed the radiators?

Turn off the boiler and wait for the water to cool. Open the radiator bleed valve with a special key. Close it as soon as water flows steadily. Restore the pressure if necessary (between 1 and 1.5 bar).

What does error code F1 mean?

Code F1 indicates an ignition fault. Check the gas supply and that the gas valve is open. If the problem persists, call a professional.

Where to find spare parts?

Spare parts are available from authorized Siemens dealers. Use the model DH12103M for your search. You can also order online on the official website.

How to maintain my boiler?

Annual maintenance by a professional is mandatory. They clean the burner, check the gaskets, inspect the ventilation and measure emissions. Regularly clean the ventilation grilles.

Can I use the boiler during a power outage?

No, the boiler requires a power supply (230 V). In case of an outage, it shuts down automatically. Restore power to restart it.

How to fill the water circuit?

Open the filling valve located under the boiler. Watch the pressure gauge: the pressure should reach about 1.2 bar. Close the valve after filling.

The boiler is making noise, is it normal?

A slight operating noise is normal. Banging or whistling sounds may indicate scaling or a flow problem. Bleed the radiators or call a technician.

What is the complete user manual?

Download the full manual in PDF format from sites like Notice-Facile. The manual details installation, use, maintenance and error codes.

USER MANUAL DH12103M SIEMENS

Exterior view of a Siemens air conditioner unit (no text or symbols on the device itself)

DH12103M

6 720 820 341

9001217901

Montage- und

Gebrauchsanleitung

Installation and

operating instructions

Notice de montage

et d'utilisation

Montage-en

gebruikshandleiding

Eine Störung, was tun?

Achtung!

This appliance is intended for domestic use and the household environment only.

■ Install and operate the appliance as described in the text and illustrations. We do not accept liability for damage resulting from failure to heed these instructions.
This appliance is intended for use up to an altitude of 2000 m above sea level.
The appliance may only be installed and stored in a frost-free room (due to residual water).

Risk of electric shock! Switch off the mains voltage supply immediately if a fault occurs. Immediately shut off the cold water supply to the appliance should it leak.

The continuous-flow heater may only be connected and put into operation by a qualified professional.
In order to avoid potential sources of danger, repairs and maintenance may only be undertaken by a suitably qualified specialist.

■ Never open the appliance without disconnecting the power supply beforehand.

The statutory regulations of the respective country, as well as those of the local electricity and water suppliers, must be adhered to.

The continuous-flow heater is a Class I appliance and must be connected to the protective earth.

The appliance must be permanently connected to installed pipes. The conductor cross-section must comply with the installed appliance power.

■ Caution: Earthed water pipes may give the appearance of a connected protective earth.

To guarantee compliance to relevant safety regulations, an all-pole separator must be fitted during installation. The contact opening must be at least 3 mm.

The continuous-flow heater is only suitable for closed (pressurised) operation.

The tap and outlet fittings must be approved for operation with closed (pressurised) continuous-flow heater systems.

- Only connect the continuous-flow heater to a cold water line. A non-return valve must NOT be connected to the cold water.

- Do not use plastic pipes. Steel or copper pipes are suitable for the cold-water supply. Insulated copper pipes are particularly suitable for the hot-water pipes.

The appliance should be installed close to the tap that is used the most frequently.

■ Disconnect the electrical connection cable from the supply and shut off the water supply before connecting the appliance!

■ Connect the water supply and then connect the electrical supply.

Only make the openings which are required for installation on the rear of the appliance. If the appliance is reinstalled, the unused openings must be provided with watertight sealing.

- Do not touch electrically live parts after installation.

The appliance should be disconnected from the electrical mains supply when working on the water supply. After service work is complete, proceed as during the first-time appliance start-up.

- No changes may be made to the appliance.

■ The appliance may only be used for heating drinking water for household use.

This appliance can be used by children aged 8 years and older as well as by persons with diminished bodily, sensory or mental perception, or those who lack knowledge or experience, if they are monitored or have received instruction concerning use and comprehend the possible dangers that can result. Children may not play with the appliance. Cleaning and maintenance by the user may not be performed by unsupervised children.

- Keep children away from the appliance.

- Please monitor children to ensure that they do not play with the appliance.

The mixer and the warm water pipe may be hot. Please inform and instruct children appropriately.
- Do not use aggressive or abrasive cleaning detergents!

Congratulations on purchasing this Siemens appliance. You have acquired a top-quality product, which will give you a lot of enjoyment.

Please read this installation and operating instruction manual carefully, then act accordingly! Store for future reference.

Installation instructions

Install the continuous-flow heater as described in the illustrated section. Observe the instructions in the text.

The illustrations can be found in the centre of the instruction manual.

Installation

List of items supplied

1 Continuous-flow heater
2 Installation template
3 Connection piece for hot water
4 Washer, red ∅ 15 mm
5 Connection piece for cold water
6 Washer, ∅ 24 mm
7 Mounting bolt
8 Wall plug
9 Securing nut
10 Threaded bushing
11 Cable grommet

Wall mounting

There are two ways in which the continuous-flow heater can be mounted on the wall:

• Using the mounting bolt. Unevenness in the wall up to a depth of 25mm can be compensated for.
• Making use of the holes that were drilled for the old heater: Use the mounting template to establish whether the existing holes line up properly.

The following describes the installation procedure using the mounting bolt.

Marking the point for mounting the heater and selecting the opening for the connecting cable (Fig. A)

Important! Make sure that the connecting cable is isolated from the mains electricity supply!

• Do not use a steam cleaner.
  The appliance is only to be descaled by a suitably qualified specialist.

Place hole 3 in the mounting template over the cold-water inlet.
Select the most suitable hole through which the connecting cable is be fed. The connecting cable must pass through one of the six holes marked 14... Terminal BZ45Z20M can be used if the cable is fed into the continuous-flow heater through one of the bottom holes marked 14a.
■ Mark the point 12 at which the mounting bolt is to be inserted.

Fitting the mounting bolt and attaching the pipe connecting pieces (Fig. B)

Open up the heater (Fig. C)

Punching out the holes at the rear of the heater for the mounting bolt and the connecting cable

Important: When mounting the appliance, only the holes actually required should be punched out. Any other holes that are not going to be used must be sealed watertight.

Inserting the connecting cable (Fig. D)

- Push the grommet 11 over the end of the connecting cable.

Note: Do not use the grommet for a cable with a cross-section of 16 mm ² . The appliance must then be installed flush with the wall.

• Place the heater over the connecting cable.
  Press the grommet into the hole in the rear wall of the heater through which the cable should be fed. Ensure that the edges of the grommet are flush with the hole all the way round.
  Fit the heater onto the threaded bushing 8 and secure it in place with the nut 9.

Compensating for unevenness in the wall (Fig. E)

Water connection

■ Using the locking screw 15, the water connection can be aligned by ± 10 mm vertically.
Adapt the bend in the "hot" pipe so that it lines up with the hot-water outlet. In doing so, make sure that the "cold" elbow connection is not bent.

Attention: Ensure that a distance of at least 6 mm is maintained to live parts of the heater.

■ Connect the water outlet and inlet and tighten the securing nut on the mounting bolt.

Checking for leaks and flushing the heater:

■ Turn on the hot-water tap.
- Check that all pipe joints are properly sealed.

IV. Electrical connection

As a matter of principle, the water connections must be completed first of all before the heater is connected to the electricity supply. The appliance should be wired up according to the circuit diagram on the inside of the cover.

Circuit as delivered: 12 kW Y 400 V 3 \~ (11 kW Y 380 V 3 \~)

Connection Options:

• 8.0 kW 230 V \~ (7.4 kW 220 V \~)
• 6.0 kW 230 V \~ (5.5 kW 220 V \~) (The required optional bridge can be found under accessories.)
  To guarantee compliance to relevant safety regulations, an all-pole separator must be fitted during installation. The contact opening must be at least 3 mm.
  Terminal BZ45Z20M (special accessories) can be used if the connecting cable is fed into the continuous-flow heater via one of the bottom holes 14a!
  The wires must not interfere with the operation of release button A on the safety temperature limiter.

Connection Options (Fig. A)

Definitiv wiring diagram in the appliance:

f1 Safety temperature limiter with mains terminals 1-3-5
12 Change-over terminal strip (The required optional bridge for the 6 kW 230 V \~/5.5 kW 220 V \~ circuit can be found under accessories.)

Installation note

The installation of non plug-in ready appliances must be undertaken by the respective utility operator or by a qualified specialist company, who can also assist you when you are requesting the approval of the utility company for installation of the appliance.

v. Mounting the cover onto the heater

vi. Startup

The device is compliant to IEC 61000-3-12.

■ Switch on via the heater fuses in the domestic wiring.
■ Turn on the hot water tap and check the water temperature.
Explain the appliance to the user and please give him the operating instructions.

Priority switch for combination with electric storage heaters (Fig. A)

If the heater is going to be operated in this way, a priority switch must be connected into the line connecting the L2 phase to the appliance. It should be mounted on the meter or distribution panel.

a, b Control line for the electricity supply company connected to the coil input on the charging contactor

f1 Safety temperature limiter with mains terminals
f3 Priority switch (current relay)

Specifications

	DH12103M
Rated power as delivered [kW] / Rated voltage	12 kW Y 400V3 ~ (11 kW Y 380V3 ~)
Connection Options	8.0 kW 230 V ~ (7.4 kW 220 V ~)6.0 kW 230 V ~ (5.5 kW 220 V ~)
Switch-on point [l/min]	3.6
Mixed water [l/min] at rated power
approx. 38 °C 6.5
approx. 50 °C(supply temperature 12 °C)	4.4
Minimum flow pressure of appliance* [MPa (bar)]
with flow limiter 0.3 (3)
without flow limiter 0.2 (2)
Energy efficiency class	A
Load profile	XS
Annual energy consumption [kWh]	474
Daily energy consumption [kWh]	2.178
Sound power level [dB]	15
Hot water heating energy efficiency [%]	38.9

* Plus any pressure loss at the tap mixer

Dimensions

Special accessories

BZ45U20 Pipe set: for use of the continuous-flow heater as an under sink appliance
Intermediate terminal block BZ45Z20M: Required when the mains connecting cable is fed in through the bottom access hole 14a.
■ Priority switch (load shedding relay) BZ45L21: for operation with the priority circuit
■ Mounting set BZ45K24M: for surface-mount installation
Truncated connecting piece sealed at rear for water connection from below (e. g. cold water connection via fitting mounted below heater):
Elbow joint, "cold" (right) Order no. 056169
Elbow joint, "hot", (left) Order no. 255568

Operating instructions

Please read and observe the detailed safety instructions at the start of these instructions!

■ Important: The appliance may never be exposed to frost!

Risk of electric shock!

Switch off the mains voltage supply immediately if a fault occurs.

- Immediately shut off the cold water supply to the appliance should it leak.

Getting to know your appliance

The continuous-flow heater heats the water as it flows through the appliance. The appliance only consumes power during this period.

This appliance can supply hot water to taps in several different locations. It should be installed close to the tap that is used the most frequently. This will enable you to reduce energy consumption.

Operating the appliance

■ Turn on the hot-water tap.

The continuous-flow heater switches on automatically and heats the water as it flows through the appliance.

The heater switches off again when you turn off the tap.

Increasing the water temperature

When the tap is turned on fully, it is possible that the heater capacity is not sufficient to heat the water to the required temperature.

■ Turn the tap off slightly. The water flows through the appliance more slowly and reaches a higher temperature as a result.

Decreasing the water temperature

Mix with cold water.

Saving energy

To minimise energy consumption when turning off the hot water:

• Turn off the hot-water tap slowly in order to use the residual heat of the continuous-flow heater.
• This also prevents the water temperature from briefly increasing above the preselected temperature if the hot-water tap is turned on again within the next few minutes.

To obtain particularly uniform hot-water temperatures, it is recommended to use thermostatically-controlled premixers.

The thermostatically-controlled premixer must be suitable for hydraulically controlled continuous-flow heater.

Winter operation

Note: It is possible in winter that the supply temperature of the water is reduced and the required outlet temperature is no longer achieved.

In order to compensate for this temperature reduction, please reduce the water quantity on the tap until the required water temperature is achieved.

Cleaning

■ Simply wipe the appliance with a damp cloth. Do not use acidic or abrasive cleaning materials.

Notes: It is normally not necessary to descale the appliance. However, extremely hard water and the frequent flows of very hot water can cause the appliance to scale up. In this case please contact our after-sales service.

A fault, what to do?

Attention!

Repairs must only be carried out by an authorised technician. Improper repairs can lead to risk of serious injury to the user.

If your appliance does not operate as required, it is often due to a very minor problem. Please check whether you can remedy the fault yourself by using the following guidelines. You will save yourself the costs of an unnecessary visit by customer service personnel.

The water does not heat up or not enough water flows out of the tap:

• Check the fuse in the fusebox.
• Drop in pressure in the water mains. If the pressure is too low, the appliance will not switch on.
  The strainer on the tap or shower head is blocked. Unscrew the strainer and either clean or descale it.
  The corner valve is clogged. Turn on the hot-water tap fully and open and close the corner valve several times. Then clean the filter in the water tap.
  The heater needs descaling. Arrange for a service engineer to visit.

The continuous-flow heater switches off during the drawing-off of water, resulting in a reduction in the watertemperature:

The washer inside the hot-water tap must be a non-swelling type.

If you cannot resolve the problem yourself, switch off the heater via the fuse in the domestic wiring. Arrange for a service engineer to visit.

After-sales service

If you call the after-sales service for assistance, please specify the E no. and FD no. of your appliance.

These numbers can be found on the underside of the continuous-flow heater.

Disposal

This appliance is labelled in accordance with European Directive 2012/19/EU concerning used electrical and electronic appliances (waste electrical and electronic equipment – WEEE).

The guideline determines the framework for the return and recycling of used appliances as applicable throughout the EU.

Please ask your specialist retailer about current disposal facilities.

Guarantee

The guarantee conditions for this appliance are as defined by our representative in the country in which it is sold.

Details regarding these conditions can be obtained from the dealer from whom the appliance was purchased. The bill of sale or receipt must be produced when making any claim under the terms of this guarantee.

Subject to change without notice.

Illustration of an open book with a curved arrow pointing upward, no text or symbols present

B

Diagram of a box with arrows indicating motion, showing a tool inserted into the base (no text or symbols present)

IV.

A

Technical line drawing of a mechanical assembly with cross-sectional views and dimension arrows (no text or symbols)

V.

VI.
A

European Trade Center Building, 5th floor 1784 Sofia

Tel.: [phone]

Fax: [phone]

mailto:[e-mail]

www.siemens-home.bg

CH Schweiz, Suisse, Svizzera, Switzerland

BSH Hausgeräte AG

Central Branch Service

17 km E.O. Athinon-Lamias &

Potamou 20

14564 Kifisia

Unit 1 & 2, 3rd Floor

North Block, Skyway House

3 Sham Mong Road

Tai Kok Tsui, Kowloon

Hong Kong

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Kneza Branimira 22

10000 Zagreb

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Mobil: 069 324 812

mailto:[e-mail]

MK Macedonia, Makedonija

GORENEC

Jane Sandanski 69 lok. 3

1000 Skopje

Tel.: [phone]

Mobil:070 697 463

mailto:[e-mail]

PH Philippines

Häfele Philippines, Incorporated

Levi Mariano Avenue, Brgy. Ususan,

Taguig City 1632

Metro Manila

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Fax: [phone]

mailto:[e-mail]

PL Polska, Poland

2034/1-5 Ital Thai Building,

1st Floor, New Petchburi Road

Bangkapi, Huaykwang,

Bangkok, 10310

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Fax: [phone]

Service Call Center 02 351 8995

Spareparts 02 769 7975

www.siemens-home.com/th

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ve Ticaret A. S.

Fatih Sultan Mehmet Mahallesi

Balkan Caddesi No: 51

34771 Ümraniye, Istanbul

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9001217901