Demir Dokum Atron H 24 User manual

Atron H 24 / Atron H 28
Instruction for Use
Іструкція з експлуатації
Руководство по эксплуатации
Kullanma Klavuzu

Wall Hung Combination Boiler
Настінний опалювальний водогрійний котел
Настенный комбинированный котел
Kombi


Wall Hung Combination Boiler
Atron H 24 / Atron H 28
EN

Natural Gas / Liquefied Petroleum Gas
ATRON H 24 / ATRON H 28 Wall Hung Combination Boilers
All range of heating boilers is manufactured from high quality materials, enabling reliability and optimum performance.
There is a commitment to the continual development of the appliances to ensure the customer’s benefit from the latest
advances in combustion technology and energy savings.
WARNINGS
GAS LEAK OR FAULT
Turn off the gas emergency control valve immediately. Eliminate all sources of ignition, i.e. smoking, blowlamps,
hot air guns etc. Do not operate electrical lights or switches either on or off. Open all doors and windows, ventilate
the area.
METAL PARTS
This boiler contains metal parts (components) and care should be taken handling and cleaning, with particular
regards to edges.
SEALED COMPONENTS
Under no circumstances must the user interfere with or adjust sealed parts.
IMPORTANT
Danger of death by electric shock! All live parts of the system may be installed, serviced and repaired only by a
competent person.
Product/Production certified by:
Notified Body IMQ 51BT3737 (90/396/CEE)
51BT3737DR (92/42/CEE)
The manufacturer, in the continuous process to improve his products, reserves the right to modify the data expressed in
the present documentation at any time and without prior notice.
These instructions are an integral part of the controller and must be left with the user.
Please read these instructions and follow them carefully for the safe and economical use of this product. No responsibil-
ity has been taken for unsatisfactory performance of the appliance or flue arising from the failure to comply with the instal-
lation instructions.
2

Gas Safety (Installation and Use) Regula-
tions
In your own interests and that of safety, it is the law that all
gas appliances must be installed and serviced by a com-
petent person in accordance with the current issue of
current regulations.
Gas Category
This boiler is for use on Natural Gas and LPG.
Ventilation
On installation the boiler must be installed with minimum
clearances of 100 mm each side, 200 mm above, 300
mm below with 600mm access to the front. If an opening
door is to be fitted across the front of the boiler allow 5
mm clearance to the front panel.
Electrical Connection
The boiler MUST be earthed.
The boiler MUST be connected to a permanent 230V AC,
50Hz supply, fused at 3A.
Connection of the whole electrical system of the boiler,
including any heating controls, to the electrical supply
must be through one common isolator.
The colors of three core flexible cable are blue - neutral,
brown - live, green and yellow - earth.
Testing and Certification
This boiler is certificated to the current issue of EN 483 for
performance and safety.
It is important that no alteration is made to the boiler
unless approved in writing.
Any alteration not approved, could invalidate the certifica-
tion, boiler warranty and may also infringe the current
issue of the statutory requirements.
CE Mark
This boiler meets the requirements of Statutory Instru-
ment, No. 3083 of the Boiler (Efficiency) Regulations, and
therefore is deemed to meet the requirements of Direc-
tive 92/42/EEC on the efficiency requirements for new hot
water boilers fired with liquid or gaseous fuels.
Type test for purposes of Regulation 5 certified by:
Notified body 0051.
Product/production certified by: Notified body 0051.
The CE mark on this appliance shows compliance with:
1. Directive 90/396/EEC on the approximation of the laws
of the Member States relating to appliances burning
gaseous fuels.
2. Directive 2006/95/EC on the harmonization of the
Laws of the Member States relating to electrical equip-
ment designed for use within certain voltage limits.
3. Directive 2004/108/EC on the approximation of the
Laws of the Member States relating to electromagnetic
compatibility.
Documents
Please retain these user instructions and all related docu-
ments in a safe place for future reference.
If you vacate the premises in which this system is
installed, please give the documents to the new owner.
3
Important Information

4
General Note
Servicing/maintenance should be carried out by a
competent person in accordance with the current rules in
force in the countries of destination.
Utilization
The appliance is not to be used by children or persons
with reduced physical, sensory or mental capabilities, or
lack of experience and knowledge, unless they have
been given supervision or instruction.
Children being supervised not to play with the appliance.
Servicing
To ensure the continued efficient and safe operation of
the product it is recommended that it is checked and
serviced at regular intervals. The frequency of servicing
will depend upon the site conditions and usage, but in all
cases the boiler must be serviced once a year. For further
advice or information contact your installer.
Cleaning
The boiler can be cleaned using a mild liquid detergent
with a damp cloth.
Do not use any form of abrasive or solvent cleaner as you
may damage the surfaces.
Recycling
These products comprise many recyclable parts. The
packaging and the content of the package shall not be
disposed of with general domestic waste but according to
the current regulations.
Boiler Design and Clearances
Description
The boiler is a combined domestic hot water and central
heating appliance. The internal control unit electronically
provides direct burner ignition and combustion supervi-
sion along with continuous modulation of the burner’s gas
supply.
By means of a manual button the boiler can be set to
operate in one of two operating modes, domestic hot
water only (summer mode) or domestic hot water and
central heating (winter mode).
Domestic Hot Water Mode:
When hot water demand is requested the boiler will fire
automatically. An integral pump is then energized and hot
water from the boiler’s primary circuit is circulated through
the secondary heat exchanger, allowing the instantane-
ous transfer of heat to the incoming cold water. The
secondary heat exchanger is protected against an
internal build up of lime scale by limiting the hot water
temperature at the tap to a maximum 64°C. Hot water will
continue to flow through the tap until no longer required.
When the demand for hot water ceases the integral pump
may continue to run for a short while to dissipate any
excess heat within the boiler.
Domestic Hot Water and Central Heating
Mode:
When heating demand is requested the boiler will fire
automatically. An integral pump is then energized and hot
water from the boiler’s primary circuit is circulated around
the heating systems, pipe-work and radiators. The heat
output from the boiler is automatically adjusted by the
boiler’s internal control unit to match the heating demand.
As the water temperature of the heating system
increases the gas input to the burner decreases, conserv-
ing energy and increasing efficiency. When the demand
for heating no longer exists either the room thermostat is
satisfied or the heating period has ended, the burner will
shut down and the boiler will revert to stand-by, waiting to
respond to the next heating demand. The integral pump
may continue to run after shut down for a short while to
dissipate any excess heat within the boiler.
Important Information
Please Note. When domestic hot water is called for
during the heating mode, the boiler will automatically
revert to domestic hot water mode until the demand
for hot water ceases.

5
Technical Data
Atron H 24 Atron H 28
Heat Input (max)
Heat Output (max)
Heat Input (min)
Heat Output (min)
Useful efficiency at 100% load (80/60 °C)
Useful efficiency at 30% load (ret 47 °C)
Useful efficiency @ min (80/60 °C)
25,3
23,5
10,5
9,2
93
90,2
87,5
1,38 NG
0,79 LPG
Max. 9,3
Min. 1,6
Max. 2,777
Min. 1,174
Max. 35,8
Min. 6,5
1,38 NG
0,79 LPG
Max. 9,1
Min. 1,8
Max. 3,206
Min. 1,437
Max. 34,8
Min. 7,6
kW
kW
kW
kW
%
%
%
29,1
27
13
11,3
92,9
90,3
87,3
Gas type
Gas Inlet Pressure (NG)
Gas Inlet Pressure (LPG -Propane)
II2H3+
13
37
mbar
mbar
mbar
mbar
V/Hz
Watt
°C
°C
PMS
PMS
Nominal
Min.
Min.
Bar
L
I / min.
m3 / h
mm
Burner injectors
Burner Pressure (NG)
Gas Rate (NG) (13 mbar)
Burner Pressure (LPG-Propane)
Power Supply
Max. power consumption
NOx Class
Level of Protection
Maximum heating temperature
Max. domestic hot water temperature
220 - 2240 V, 50 Hz
98
3
IPX 4 D
85
64
3
1,5
0,8
0,25
7
1
8
10,7 12,7
Central Heating Operating pressure (bar)
Domestic Water Supply Output at 30º C T
Domestic water supply pressure (bar)
Expansion Vessel Capacity
Expansion Vessel Pre - charge Pressure
Table 1

6
LCD Display
User Control Panel
1. Central Heating (CH) Temperature Control Knob & Summer / Winter Mode Selection
2. Domestic Hot Water (DHW) Temperature Control Mode & ON/OFF Position
3. “ECO / COMFORT” Mode selection & Reset Button
4. LCD Screen (Temperatures, CH Pressure, Fault Codes)
Figure 1
Figure 2
DHW Symbol
CH Symbol
ECO Mode
COMFORT Mode
Reset Symbol
Flame Symbol
Pressure Symbol
Temperature Symbol

Operating the Boiler
Boiler Function
Figure 3 Figure 4
Figure 7 Figure 8
Figure 5
Figure 6
Initial Operating
Check that all isolating valves and the gas service cock
on the appliance are open and that water flows from the
hot water taps and then close taps.
NOTE: It is possible to see different pressure values on
LCD screen and analog manometer due to dynamic
pressure. It is not a fault.
If you are in any doubt about the boiler being filled with
water contact your installer.
Do not operate the boiler without water.
1. With no demand from any external controls.
Prior to firing, check that the electrical supply to the boiler
is 'On'
2. Set the boiler's central heating and domestic hot water
temperature controls to maximum by turning CH and
DHW adjustment knobs as defined in Figure 1.
3. Set the thermostatic radiator valves and the room
thermostat to maximum value.
4. Turn the CH temperature control knob between
min-max until the temperature shown on LCD and the
pressure value disappear.
5. The boiler's control unit will now automatically carry out
pre-ignition safety checks before igniting the burner.
Boiler controls
The function and operation of the main controls located
on the control panel fascia figure 1 is as follows:
In the position, where pressure value can be seen, the
boiler is in stand-by mode (figure 3) and power supply is
ON.
To operate the boiler, the DHW control knob should be
turned until the temperature appears and the pressure
value disappears on LCD. Working Mode (Figure 4)
By turning CH control knob, it is possible to change the
boiler’s operating mode either from winter to summer ( )
or summer to winter mode ( ).
Summer Mode Selection
If only DHW symbol ( ) appears on the screen, it
denotes that the boiler is ready to operate in summer
mode to only supply domestic hot water. This symbol
blinks when the tap is ON. (Figure 5)
Winter Mode Selection
If there is a requirement to change the operating mode
from summer to winter, just set the CH knob between
min and max CH temperature value. (Figure 7) To have
the comfort conditions, it is advised to set CH tempera-
ture as “e”.
CH temperature can be set between 38°C - 85°C. Also,
it can be set between 30°C - 50°C for undersoil heating
systems.
In this mode, LCD display shows both DHW and CH
symbols at the same time but only operating circuit
symbol blinks. (Figure 8)
7
To set summer mode from winter mode, turn the CH
knob to ( ) position (figure 6). DHW temperature can
be set between 35°C - 64°C.

8
Figure 10
Eco & Comfort Modes for CH
Central heating system can be operated in two alternative
modes. Eco & Comfort.
Boiler includes NTC sensors for measuring inlet and
outlet water temperatures. And boiler calculates heating
ramp each 30 seconds.
In case heating demand of CH; at the beginning burner
works with minimum capacity for 1 minute. After that time,
if measured ramp is smaller than the ramp given for
modes in table 2 power is increased by 1 kW for each 30
seconds.
In Comfort mode, boiler automatically sense heat loss of
building and power is modulated between maximum
power and required power for building whereas water
temperature level is between set+3°C and set+5 °C
-Eco & Comfort modes can be selected by button number
3 (Figure1)
-Either “E” symbol for Eco mode or “C” symbol for Com-
fort mode, appears on LCD (Figure 2)
-Factory set is Comfort and Winter mode.
System Pressure
There is a valve placed bottom right side of boiler to fill the
radiators with water.
To fill the system, press reset button for 2 seconds to see
the pressure value of the system on the screen, then turn
the valve counter-clockwise direction and fill the system
till the pressure value reaches between 1 and 2 bar, close
the filling valve by turning clockwise direction.
There is a pressure difference between digital and analog
manometer due to dynamic pressure.So, if you are filling
the system according to analog manometer before
working, keep the pressure level between 1and 1,5
bars. (Figure 3, Figure 9)
When new water is added to a central heating system,
a certain amount of air also enters the system. As air
will rise in water, it will collect at high points in the
system, this is especially noticeable within radiators.
With the central heating switched on, feel the top and
then the bottom of the radiator - if the top is noticeably
cooler than the bottom, there is a good likelihood that
there is air in the radiator.
1. With warm water in the radiator, switch off the
Central Heating system.
2. Fit a bleed key onto the bleed valve (this is usually at
the top at one end of the radiator - on some designs of
radiator, it may be at the back).
3. Loosely wrap a piece of old cloth around the key to
catch any expelled water.
4. Open the bleed valve by turning the bleed a 1/2 turn
counter clockwise - hissing of air being expelled will
normally be heard.
5. When water starts to dribble out of the valve, close
the valve by turning the key a 1/2 turn clockwise.
DO NOT OVER TIGHTEN.
6. If the Central Heating system is a sealed system,
check the pressure and, if neces sary, top up the pres-
sure as required.
CH Mode Ramp
ECO Mode
Reduced ECO Mode (Floor Heating)
COMFORT Mode
Reduced COMFORT Mode (Floor Heating)
2 °C/min
1 °C/min
4 °C/min
2 °C/min
Figure 9
Table 2

Fault Codes Definition
The control unit has an in-built fault diagnostic function
display. When a fault occurs, the type of fault is
indicated on LCD with a fault code. A listing of the fault
codes and meanings, see table 3
F01 Overheat Fault: When CH temperature exceeds
98°C, the boiler stops operating and “RESET” and
“F01” indications appears on LCD at the same time.
Please call authorized serviceman.
F02 Domestic Hot Water NTC Fault: When there is a
fault on DHW NTC sensor, there appears F02 fault
code on LCD. The boiler still operates and meets
domestic hot water requirement by CH NTC sensors
inside the boiler. Please call authorized serviceman.
F03 Central Heating Flow NTC Sensor Fault: When
there is a fault on CH flow NTC sensor, there appears
F03 fault code on LCD. Please call authorized service-
man.
F04 Ionization Fault: When there is gas cut-off, or a
fault on ionization electrode, there appears F04 fault
code on LCD due to unsuccessful ignition attempts.
Please press “eco/comfort-reset” button to reset the
boiler and ensure that the gas valve is not closed for
any purpose. If the problem still occurs, please call
authorized serviceman.
F05 Air Flow Fault: When there is a fault on air flow
(e.g. due to flue blockage) to the boiler, or low mains
supply voltage (< 165 V) there appears F05 fault code
on LCD. If the problem still occurs, please call author-
ized serviceman.
F06 Central Heating Return NTC Sensor Fault:
When there is a fault on CH return NTC sensor, there
appears F06 fault code on LCD. Please call authorized
serviceman.
F07 Gas Valve Driving Fault: When there is a fault on
gas valve driving circuit.
F08 CH out NTC Sensor OverHeat Fault: If CH outlet
temperature above 95°C, there appears F08 fault code
on LCD.
F09 Air Pressure Switch Contact Fault: If the air
pressure switch contact is in a stuck position at startup
or re-operation, there appears F09 fault code on LCD.
First, unplug mains supply and then re-plug it. If the
problem still occurs, please call authorized service-
man.
F10 Central Heating Water Pressure Fault: When
there is a fault on water pressure sensor, or if the water
pressure is below 0,3 bar, or if the water pressure is
over 2.7 bar, there appears F10 fault code on LCD.
The pressure value should be between 1 and 2 bars.
Please fill your boiler from the filling valve at the bottom
if the pressure is low. If the problem still occurs, please
call authorized serviceman.
F11 Circulation Fault: When the temperature differ-
ence between CH flow and return is over 35°C, F11
fault code appears on LCD. This problem may occur
due to installation size or type. If the problem still
occurs, please call authorized serviceman or the
installer.
F12 Low Voltage Fault (Voltage < 165 V): If the
mains supply voltage is below 165V, F12 fault code
appears on LCD. If the problem still occurs, please call
authorized installer to check mains supply voltage
nominal value (230 V AC).
F13 CH Circuit NTC Connections Fault: If CH return
temperature is 7C hotter than CH out temperature for
20 sec. period of time F13 fault code appears on LCD.
This fault code does not appear while flowing DHW
water.
Note: If there appears “RESET” on LCD with fault
code, system should be reset by pressing
“eco/comfort-reset” button once.
9
CODE DEFINITION
F01
F02
F03
F04
F05
F06
F07
F08
F09
F10
F11
F12
F13
Over Heat Fault
Domestic Hot Water NTC Fault
Central Heating Water NTC Fault
Ionization Fault
Air Flow Fault
Central Heating Return Sensor Fault
Gas Valve Driving Fault
CH out NTC Sensor OverHeat Fault
Air Pressure Switch Contact Fault
Central Heating Water Pressure Fault
Circulation Fault
Low Voltage Fault (Voltage ‹ 165 V)
CH Circuit NTC Connections Fault
Table 3

Figure 11
Figure 13
10
Boiler Protection Functions
Beyond fault diagnostic display function, the boiler
possess of more protection functions defined below.
Frost Protection
The boiler has a built in frost protection device that
protects the boiler from freezing. If the boiler is to be left
and there is a risk of frost, ensure that the gas and electri-
cal supplies are left connected. The frost protection
device will light the boiler when the temperature of the
boiler water falls below 6ºC. When the temperature
reaches 15ºC, the boiler will shut down. In any case,
maximum duration for this operation is 10 minutes.
During this operation, Fr symbol appears on the screen.
(Figure 11)
NOTE: This device works irrespective of any room
thermostat setting and will protect the boiler, but not
necessarily the full system. Ensure that vulnerable
sections of the circuit are adequately lagged.
Over Work Protection
In case WHB operates continiously in 24 hours, appli-
ance stops operation for 15 seconds. After 15 seconds,
WHB continues operation for heat demand on position
which is adjusted.
Anti-Blockage protection
After inactivity of pump or 3 way valve, pump and 3 way
valve energized for 15 seconds. During this operation,
there appears Ab symbol on the screen. (Figure 12)
Lower Console (Pipe Connections)
A-Radiator inlet (3/4”)
B-DHW outlet (1/2”)
C-Gas inlet (3/4”)
D- DHW inlet (1/2”)
E-Radiator return (3/4”)
F- Analog Manometer
G- Filling Valve
Figure 12
F
ABCDE
G

Information for Installation
While choosing installation space;
tInstallation environment must not include acid vapor.
tDo not install the boiler inside the explosives.
tDo not install the boiler to stairwells, corridors or
daylight spaces.
tDo not install the boiler beside or above of ovens,
furnaces, radiators, stoves or similar heating elements.
tDo not install the boiler on chimney walls.
tDo not install the boiler open atmosphere or spaces at
stake of freezing. Necessarily, install the boiler to
closed spaces.
tBoiler can be installed in cupboard, but leave 10cm
free space of both sides of boiler for service activities.
(Figure 14)
tBoiler should be installed on fire-resistant wall. If the
wall is not fire resistive, use insulation between wall
and boiler, Also, use insulation between chimney hole
and the wall.
tIf the boiler will be installed on a table or a bench
leave 30cm distance between boiler and table. (Figure
14)
Using with single room;
tBoiler installed room, must be well ventilated and
must have at least 12m³ volume.
tAlways clean air must enter to the room. To provide
clean air, two air vent each has 75cm² area must be
placed on the outer wall of the room.(Figure 15)
tOne of air vent must be placed close to ceiling, at
least 180 cm above from the floor.
tThe other air vent must be close to floor. Instead of
this air vent, the door could be cut out 4cm from the
bottom edge.
tInstead of two air vents, one air vent which has
150cm² net area could be placed very close to floor.
tAir vents must be always open type.
Using with combined room;
If the room is not assure conditions above and
combined to another room;

24 and 28m³ for Atron H 28 boiler.

has 75cm² net area or one air vent which has 150cm²
net area.
"
two air vents each has 75cm² (Figure 16) net area or
one air vent which has 150cm² net area. Instead of air
vents air duct could be used for ventilation. In this case,
10m straight duct which has 300 cm² cross section area
can be used for ventilation. Equivalent length of 90°
elbow can be calculated as 3m, 45° elbow equivalent
11
Figure 14
Figure 15
Figure 16

ATRON H 24 ATRON H 28
Case Dimensions
Flue Types
Flue P#pe Diameter
Flue Pipe Diameter With Std. Twin Adapter
Max. Flue Length C12
Max. Flue Length C12
Max. Flue Length C32
295d x 410w x 700h
C12-C32-C42-C52-C82-B22P
60/100
80/80
1m (60/100) with original diaphragm
2m (60/100) with original diaphragm
4.6m (60/100) without diaphragm
5.5m (60/100) without diaphragm
0,2
0.5
1.0
30,5
2m (80/80) with
orginal diaphragm
10m (80/80) with
Ø39 diaphragm
15,5m (80/80)
without diaphragm
4m (80/80) with
orginal diaphragm
2m (60/100) with original diaphragm
5.5m (60/100) without diaphragm
0,2
0.5
1.0
33
33 35,5
mm
mm
mm
m
m
m
295d x 444w x 700h
Max. Flue Length C32
Max. Flue Length C42, C52, C82, B22P m
m
m
m
m
kg
kg
m
Max. Flue Length C42, C52, C82, B22P
Max. Flue Length B22P (ø60 - ø100)
Max. Flue Length B22P (ø60 - ø100)
Equivalent Length Twin Adapter (80/80)
Equivalent Length 45° Bend (60/100)
Equivalent Length 90° Bend (60/100)
Gross Weight
Net weight
Table 4
Chimney Installation
Figure 17 Figure 18
Standard fan diaphragm has been installed to the boiler (Figure 17- Figure 18)
Installation must be done according the table below. (Table 4)
12
Chimney installation must provide
the clearances given in Table 5 and
shown in Figure 19
Figure 19
Table 5
A - Below window 60 cm G - Beside horizontal or vertical duct 60 cm
B - Below air vent 60 cm H - Distance from outer corner of building 60 cm
C - Below rain channel 30 cm I - Distance from inner corner of building 30 cm
D - Below balcony 30 cm L - From the ground 30 cm
E - Beside window 40 cm M - Vertical distance between two chimneys. 40 cm
F - Beside air vent 60 cm N - Horizontal distance between two chimneys. 60 cm

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UK

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