DeDietrich DTG N User manual

DTG X .. N
Low temperature gas boiler
User Guide
300006361-02
en

Contents
DTG X .. N 09/03/2016 - 300006361-02
Important recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
1 Ventilation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
2 Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
3 Adapting to another gas type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Switching off the boiler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Symbols used
Caution danger Risk of injury and damage to equipment. Attention must be paid to the
warnings on safety of persons and equipment
Specific information Information must be kept in mind to maintain comfort
ZReference Refer to another manual or other pages in this instruction manual

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09/03/2016 - 300006361-02 DTG X .. N
Congratulations on your choice of a high quality product. We strongly advise you to read the following instructions in order to
guarantee the optimal operation of your appliance. We are sure that it will be entirely to your satisfaction and will meet with all of
your expectations.
Important recommendations
For a proper operating of the boiler, follow carefully the
instructions.
Any intervention on the appliance and heating equipment
must be carried out by a qualified engineer.
The manufacturer is not liable for any improper use of the
appliance or failure to maintain or install the unit correctly
(the user shall take care to ensure that the system is
installed by a qualified engineer).
Check the seal on the gas and water pipe connections.
Check that the appliance is properly set for the type of gas
used.
Keep to the polarity shown on the terminals: phase (L),
neutral (N) and earth 4.
Check regularly that the installation contains water and is
pressurised.
Burn hazard in direct contact with the flame inspection
window.
1 Ventilation
Do not obstruct the air inlets in the room (even partially). The compulsory cross section of aeration vents in the premises in
which the boiler is installed must comply with the standards current
in the country.
2 Maintenance
- The servicing and cleaning of the boiler and the sweeping of the
flue gas pipe and the bleed pot must be done at least once a year
by a qualified professional. We recommend taking out a
maintenance contract.
- Regularly check the level of water in the system and top up if
required, taking care that cold water is not added suddenly into the
boiler when it is hot. If this operation is repeated several times per
season, locate the leak and repair it.
Do not drain the installation, except in cases of absolute
necessity. For example: Several months' absence with the
risk of ice in the building.
3 Adapting to another gas type
The operations required to switch from one gas to another must be
carried out by your fitter.

4DTG X .. N 09/03/2016 - 300006361-02
Description
1. Safety box
2. Gas regulation block
3. Ignition burner gas supply pipe
4. Ignition electrode
5. Burner
6. Downdraught thermostat
7. Sensor tube
8. Gas inlet
9. Flame inspection window
10. Ionization probe
11. Ignition burner
1. Timed circuit breaker (4 A)
2. General ON 1/ OFF 0switch
3. 3-positions switch:
Winter .- Summer %- STB TEST
4. Boiler thermometer
5. Boiler thermostat
6. Safety thermostat: set to 110 °C
7. Emplacement for MB2 module (optional)
6
7
8
9
3
4
5
STB
20 °C 40
4
0
I
w
x
TEST
STB
M000266
3
9
6
5
1
28
410
11
7
A
M
P
6
7
8
9
3
4
5
STB
20 °C 40
0
I
w
x
TEST
STB
1
M00026
5
2
3
4 5 67
4
A
M
P

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09/03/2016 - 300006361-02 DTG X .. N
Commissioning
Initial commissioning must be done by a qualified
professional.
1. Check the water pressure in the installation. Top up with more
water if necessary.
2. Open the gas valve.
3. Check that the safety thermostat has not triggered. Remove the
safety thermostat hood and press the reset button with a
screwdriver.
4. Set the On/Off switch to 1.
5. Set the Summer/Winter swtich to ..
6. Create a requirement for heat: Place the boiler thermostat in the
required position.
7. The safety box carries out its ignition cycle.
If the safety control box malfunctions, reset it by pressing the
reset button. Make a further attempt to light it.
Check that the heating pump is working (not gummed up).
Degum the circulation pump if necessary.
Switching off the boiler
Set the On/Off switch to 0.
Precautions to take if there is a danger of frost
Heating circuit:
Use a correctly dosed antifreeze to prevent the heating water
freezing. If this cannot be done, drain the system completely. In all
cases, consult the fitter.
Domestic hot water circuit:
Drain the domestic water tank and pipes.
Precautions to take in the event of prolonged shutdown (one
year or more)
- Close the gas valve
- The boiler and the chimney must be swept carefully.
- Close the door of the boiler to prevent the internal circulation of air.
Troubleshooting
Checks to make before calling your fitter:
The burner is not working:
- Check the boiler thermostat settings.
- Shutdown by the safety thermostat due to accidental overheating.
Check that the safety thermostat has not triggered. To restart the
boiler, reset the safety thermostat. Remove the safety thermostat
hood and press the reset button with a screwdriver. Carry out the
start-up operations again. Call your fitter.
- The safety control box is malfunctioning. Press the reset button on
the safety control box. Call your fitter.
The burner is operating but the radiators are cold:
- Bleed the radiators.
- Top up the primary circuit with water.
- Check that the heating pump is operating correctly.
- If it is often necessary to top up the installation with water, contact
your fitter.
Before informing the fitter of a fault, make a note of the following
information:
- Product type
- Year of manufacture
- Serial number
- Type of gas used
This information can be found on the rating plate stuck to the front
plate of the boiler.

6DTG X .. N 09/03/2016 - 300006361-02
Warranty
You have just purchased one of our appliances and we thank you
for the trust you have placed in our products. Please note that your
appliance will provide good service for a longer period of time if it is
regularly checked and maintained. Your fitter and our customer
support network are at your disposal at all times.
Warranty terms
Starting from the purchase date shown on the original fitter's
invoice, your appliance has a contractual guarantee against any
manufacturing defect.
The length of the guarantee is mentioned in the price catalogue.
The manufacturer is not liable for any improper use of the appliance
or failure to maintain or install the unit correctly (the user shall take
care to ensure that the system is installed by a qualified fitter). In
particular, the manufacturer shall not be held responsible for any
damage, loss or injury caused by installations which do not comply
with the following:
- applicable local laws and regulations
- specific requirements relating to the installation, such as national
and/or local regulations
- the manufacturer's instructions, in particular those relating to the
regular maintenance of the unit
- the rules of the profession
The warranty is limited to the exchange or repair of such parts as
have been recognised to be faulty by our technical department and
does not cover labour, travel and carriage costs. The warranty shall
not apply to the replacement or repair of parts damaged by normal
wear and tear, negligence, repairs by unqualified parties, faulty or
insufficient monitoring and maintenance, faulty power supply or the
use of unsuitable fuel. Sub-assemblies such as motors, pumps,
electric valves etc. are guaranteed only if they have never been
dismantled.
France
The preceding dispositions are not exclusive of benefits for the
purchaser of the legal guarantee as stated in Civil Code articles
1641 to 1648.
Poland
Warranty conditions are included in the warranty card.
Switzerland
The application of the warranty is subject to the terms and
conditions of sale, delivery and warranty of the company marketing
our products.
Belgium
The preceding dispositions about the contractual guarantee are not
exclusive of profit if the need arises for the purchaser in Belgium of
the applicable legal dispositions on hidden defects.
Italy
The duration of our warranty is shown on the certificate delivered
with the appliance.
Our liability as manufacturer may not be invoked in respect of
incorrect use of the appliance, incorrect or insufficient maintenance
thereof, or incorrect installation of the appliance (you must
therefore ensure that installation and maintenance operations are
carried out respectively by a qualified professional and by an after
sales service company).
The legislation laid down by European Directive 99/44/EEC,
transposed by Legislative Decree No. 24 of 2 February 2002
published in O.J. No. 57 of 8 March 2002, continues to apply.
Russia
The foregoing provisions in no way affect the rights of the
consumer, which are guaranteed by the legislation of the Russian
Federation as regards hidden defects.
The terms and conditions of warranty and the terms and conditions
of application of the warranty are indicated on the warranty form.
The warranty shall not apply as regards the replacement or repair
of wearing parts under normal use. Such parts include
thermocouples, injection nozzles, flame control and ignition
systems, fuses and gaskets.
Turkey
Due to the laws and regulations the product life for this product is
10 years. During that time the producer and/or the distributor has
to provide after sales services and spare parts.
Other countries
The above provisions do not restrict the benefit of the legal laws
regarding hidden defects applicable in the buyer's country.

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© Copyright
All technical and technological information contained in these technical instructions, as well as any
drawings and technical descriptions supplied, remain our property and shall not be multiplied
without our prior consent in writing.
Subject to alterations.
09/03/2016
DE DIETRICH THERMIQUE
57, rue de la Gare F- 67580 MERTZWILLER - BP 30
DUEDI S.r.l.
DE DIETRICH SERVICE
BDR Thermea (Czech republic) s.r.o
www.duediclima.it
www.dedietrich.cz
Distributore Ufficiale Esclusivo
De Dietrich-Thermique Italia
www.dedietrich-heiztechnik.com
Freecall 0800 / 201608
Jeseniova 2770/56
130 00 Praha 3
+49 (0)25 72 / 9161-0
+49 (0)25 72 / 9161-102
[email protected]
Via Passatore, 12 - 12010
San Defendente di Cervasca
CUNEO
[phone]
[phone]
[email protected]
[phone]
[email protected]
IT
DE DIETRICH THERMIQUE S.A.S
DE DIETRICH THERMIQUE Iberia S.L.U.
www.dedietrich-calefaccion.es
C/Salvador Espriu, 11
08908 L’HOSPITALET de LLOBREGAT
[phone]
[email protected]
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