Kober C15SPV24MEFM User manual

KÖBER SRL VADURI BRANCH
USER MANUAL
MURAL CENTRAL HEATING STATION
C15SPV24MEFM
C17SPV31MEF
KÖBER SRL, no. 25 Vaduri, Alexandru cel Bun Commune, Neamt 61 511, Romania
Tel.:[phone], Fax:[phone]
www.motan.ro

USER MANUAL CENTRAL HEATING STATION TYPE C15SPV24MEFM / C17SPV31MEF
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Contents
1 Sa ety instructions and symbols ................................................................................................................................................... 3
2 Valability o instructions ................................................................................................................................................................ 3
3 EC Marking .................................................................................................................................................................................... 3
4 Use according to destination ....................................................................................................................................................... 3
5 Sa ety instructions .......................................................................................................................................................................... 3
5.1 Instalation and adjustment ....................................................................................................................................................................3
5.2 Gas smell ...................................................................................................................................................................................................3
5.3 Changes in the area adjiacent to the heating station .....................................................................................................................3
6 Technical and unctional characteristics .................................................................................................................................... 4
7 Mounting ........................................................................................................................................................................................ 5
.1 Mounting set ............................................................................................................................................................................................5
.2 Dimensions and mounting positions .....................................................................................................................................................5
8 Installation ...................................................................................................................................................................................... 6
8.1 Conditions for the installation of the central heating station ...........................................................................................................6
8.1.1 Installation directions............................................................................................................................................................6
8.1.2 Protection of the station in order to keep the warranty ................................................................................................6
8.2 Gas connecting pipe .............................................................................................................................................................................
8.3 General directions for the heating installation ...................................................................................................................................
8.4 General directions for the hot water circuit ........................................................................................................................................
8.5 Connecting pipe of the safety valve ...................................................................................................................................................8
8.6 Air/ burnt gases input/ output pipes ....................................................................................................................................................8
8. Electric grid connection .........................................................................................................................................................................8
8.8 Installation filling and emptying ............................................................................................................................................................8
9 Operation instructions ................................................................................................................................................................... 9
9.1 Control Panel ...........................................................................................................................................................................................9
9.1 Description of functions and of graphic contexts diplayed on the control panel LMC1112 ...............................................9
9.1.1 LIGHT function ......................................................................................................................................................................9
9.1.2. Graphic context – station startup ................................................................................................................................ 10
9.1.3. Graphic context - Stand-by .......................................................................................................................................... 10
9.1.4. Graphic context – error state ........................................................................................................................................ 10
9.1.5. Graphic context – waiting state ................................................................................................................................... 10
9.1.6. Graphic context – functioning state ........................................................................................................................... 10
9.1. . Graphic context – adjustment of functioning parameters .................................................................................... 10
9.1.8. Graphic context - Service submenu ............................................................................................................................. 11
9.2 Central heating station startup .......................................................................................................................................................... 11
9.3 Functioning as waste hot water station (WHW) .............................................................................................................................. 11
9.4 Functioning as heating station (HS) ................................................................................................................................................... 11
9.5 Preset functions related to station safety ......................................................................................................................................... 11
9.6 Setting additional functions ................................................................................................................................................................ 11
9. Error signals ............................................................................................................................................................................................ 12
9.8 Station switch off in safety conditions ............................................................................................................................................... 13
9.9 User training ........................................................................................................................................................................................... 13
9.10 Quality Conditions and Warranty ...................................................................................................................................................... 13
10 Inspection and maintenance ..................................................................................................................................................... 13
10.1 Inspection and maintenance intervals ............................................................................................................................................. 13
10. Drawings necessary or mounting and commissioning ........................................................................................................... 14
10.1. Types of input-output configurations for mounting ........................................................................................................................ 14
10.2. Minimum distances for mounting the co-axial kit ........................................................................................................................... 14
10.3 Hydraulic pump characteristic .......................................................................................................................................................... 15
10.4 Functioning schemes covered by warranty .................................................................................................................................... 16

USER MANUAL CENTRAL HEATING STATION TYPE C15SPV24MEFM / C17SPV31MEF
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1Sa ety instructions and symbols
When installing the central heating station we ask you to respect the safety instructions contained in this manual!
This manual is the property of KÖBER SRL-Vaduri branch. Copying or reproduction without written consent KÖBER SRL-Vaduri
branch is strictly forbidden.
The following lines explain the symbols used in the text:
Danger! - direct danger for corporal integrity and life;
Danger! - danger of death by electrocution;
Caution! - pontentially dangerous situation for the product and the environment;
Note! - useful notes and information. This symbol indicates a necessary activity;
2Valability o instructions
These instructions are valid exclusively for central heating station type C15SPV24MEFM / C17SPV31MEF.
3EC Marking
EC marking applied on this product guarantees that the equipment complies with the esential conditions stipulated in
the applicable European legislation:
- Directive regarding gas equipment 2009/142/CE (ex. 90/396/CEE)
- Directive regarding energy efficiency 92/42/EEC
- Directive regarding electromagnetic compatibility 2014/30/EU (ex. 2004/108/EC)
- Directive for low frequency 2014/35/EU (ex. 2006/95/EC).
4Use according to destination
- Central heating station C15SPV24MEFM/C1 SPV31MEF is designed following current technical standards and observing
recognized safety norms ;
- In case of misuse or inappropriate use, the health or life of users or third parties can be put in danger, as well as the central
heating station and other goods;
- This equipment must not be used by people with limited psychological and sensitive capacities (including children), or by
people with no experience or/ and no knowledge;
- The station provides both heating in closed circuit central heating installations, as well as hot water. Use for other purposes or for
additional purposes other than stipulated is considered inappropriate use. The manufacturer is not responsible for possible
damage resulting from inappropriate use. The user is the only one responsible;
- Compliance with the use and installation instructions, the additional documentation, as well as with the inspection and
maintenance stipulations is part of what is understood by use according to destination.
5Sa ety instructions
5.1 Instalation and adjustment
Installation and commissioning can be done only by a company authorized and agreed by KÖBER SRL-Vaduri Branch!
This company will assume responsibility or the correct installation and commissioning.
Adjustment work, as well as maintenance and repair are allowed to be per ormed only by a company authorized and agreed
by KÖBER SRL-Vaduri Branch!
Danger!
Danger o death by poisoning and explosion because o breeches in the gas pipes and connections in case o
incorrect installation!
Danger o deterioration when inappropriate tools are used. For tightening or unscrewing connection screws use
appropriate wrenches (no box wrenches, extensions etc).
5.2 Gas smell
When gas smell appears, take the following into account:
- Do not activate electric switches in the dangerous zone;
- Do not smoke in the dangerous zone;
- Do not use mobile phones in the dangerous zone;
- Turn off the gas tap;
- Air the dangerous zone;
- Notify the gas distribution company.
5.3 Changes in the area adjiacent to the heating station
Modifications of the following installations are not allowed:
- The central heating station;
- The gas or water pipes or electric cables;
- Air/ gas incoming/ outgoing pipes.

USER MANUAL CENTRAL HEATING STATION TYPE C15SPV24MEFM / C17SPV31MEF
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6Technical and unctional characteristics
Tab. 1 Functional and constructive characteristics
Type C15SPV24MEFM C17SPV31MEF
Commercial name OPTIMUS MAXOPTIMUS
Energy efficiency symbol *** ***
Usable gas category II2H3B/P; II2ELL3B/P
(GN-G20, G25; GPL-G30/G31)
II2H3B/P
(GN-G20, GPL-G30/G31)
Flue Forced Forced
Burning room Air-tight Air-tight
Maximum power efficiency 92 % 93 %
Class NOx 3 3
Rated power (min/max), 24 kW 31 kW
Rated power 10 kW 11 kW
Gas pressure in the network(on the regulator) 20 mbar 20 mbar
Rated maximum fuel GN consumption 2.52 Nmc/h 3,1 Nmc/h
Maximum pressure on the thermal circuit 0.5÷3 bar 0.5÷3 bar
Maximum pressure on the house hot water circuit 0.2÷8 bar 0.2÷8 bar
Maximum temperature on the thermal circuit 30÷80 °C 30÷80 °C
Temperature on the house hot water circuit 30÷55 °C 30÷55 °C
Hot water flow ∆t = 30 °C 10 min 12l/min
Electric characteristics
Input ~230V/50 Hz ~230V/50 Hz
Nominal power
(EEI pump <0.2) 80 W 80 W
Construction characteristics
Height (mm) 00 00
Width (mm) 436 436
Depth (mm) 303 331
Height with mounted corner 850 850
Weight 32 kg 34.5
Capacity primary heat switch 0.5 l 1.8l
Connector
s
Thermal input, output 3/4‘’ 3/4‘’
Cold water input, house hot water
output 1/2'’ 1/2'’
Gas input 3/4'’ 3/4'’
Expansion vessel with membrane l l
Air/ gas incoming/ outgoing pipes Co-axial - Ø100/Ø60
Dual - Ø80 **
Co-axial - Ø100/Ø60
Dual - Ø80 **
Length of burnt gases pipe Co-axial - maximum 3m**
Dual - maximum 5m**
Co-axial - maximum 3m**
Dual - maximum 5m**
Burnt gases (maximum temperature) ~150 °C ~150 °C
Class of electric protection Class I Class I
Protection class IP 40 IP 40
** Standard central heating station is delivered with co-axial kit; dual kit is delivered as accessory only on request.

USER MANUAL CENTRAL HEATING STATION TYPE C15SPV24MEFM / C17SPV31MEF
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7Mounting
7.1 Mounting set
Check whether the mounting set is complete and undamaged – see table2.
7.2 Dimensions and mounting positions
7.2.1 Installation site
When choosing the installation site, please take into consideration the following safety instructions:
Caution!
Do not install the station in spaces that are exposed to reezing! In case o reezing the sation can be damaged.
This equipment can not be installed and used in open air. Outdoor installation can cause functioning flaws.
Caution!
It is not recommended to install the central
heating station in bathrooms or kitchens or
other areas with high humidity. The station can
be installed only in rooms with maximum 60% humidity
between 20-30°C in order to prevent the damaging o
electronic components.
Caution!
The burning air o the station must not contain
substances such as lourine vapours, chlorine,
sulphur, dissolvants, colorants, adhesives or
gasoline. These substances can lead in time to the
corrosion o the equipment and air/ gas incoming/
outgoing pipes.
Legend:
A - Racord tur termoficare
B - Racord iesire apa calda menajera
C- Racord alimentare combustibil
D - Racord intrare apa rece
E - Racord retur termoficare
Fig. 1.2 Dimensions and mounting positions
Tab. 2 Mounting set
Pos.
Item
Name
1 1 Station
2 1 Station support
3 1 Bag of small elements - it contains:
- mounting screws 8x80 - 2 items.
4 1
Printed packet – it contains:
- user manual - 1 item
- conformity statement - 1 item
- warranty certificate – 1item
- commissioning statement -1 item
Model Dimensions (mm)
a b c d e f
C15SPV24MEFM 231 205
145 90 15 303
C1 SPV31MEF 2 2 164 168 113 199 331
Fig. 1.2
3
4
Fig.
1.1

USER MANUAL CENTRAL HEATING STATION TYPE C15SPV24MEFM / C17SPV31MEF
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7.2.2 Minimum necessary distances/ ree spaces or mounting
Both for the mounting/ installation of the central heating stations and for later maintenance operations you will need the
following minimum distances (fig. 1.3), respectively minimum free spaces for mounting:
– distance to the lateral: 100 mm
– distance to the bottom part: 250 mm
– distance to the upper part: 400 mm
- distance to front: 400 mm
Caution!
Danger o damaging the equipment by incorrect
setting!
The equipment can be mounted only on a lat, ixed sur ace.
Note!
Minimum necessary distances/ ree spaces or
mounting are valid also or mounting with/ within pieces
o urniture.
8Installation
Danger!
Danger o death by poisoning and explosion because o breeches in the gas pipes and connections in case o
incorrect installation! Installation and commissioning can be done only by a company authorized and agreed by
KÖBER SRL-Vaduri Branch!
This company will assume responsibility or the correct installation and commissioning.
8.1 Conditions or the installation o the central heating station
8.1.1 Installation directions
The central heating station will be subject to corrosion from the moment it is filled with water!
To receive warranty during the entire warranty period it is essential to take into consideration the following directions in order
not to increase the corrosion!
- The burning gas must have the sulphur content within the limits of the applicable European standard: it is accepted for a short
period of time to have a maximum of 150 mg/m3, but the yearly average must be of 30 mg/m3.
- The burning air must not contain chlorine, ammonia, alkaline agents, halogenated hydrocarbs, freon, plaster particles, lints,
dirt or dust;
- Installation of the central heating station in the proximity of a swimming pool, washing machine or cleaner can result in the
contamination of the burning air with these compounds.
- - Water pH must be within the following limits: ,5<pH<9,,5
It is recommended to check the water and thermal agent pH requently and i the value does not all within the limits provided
by the manu acturer, it will be treated again.
- Water asperity must be within the limits 5°F <TH <15°F (5°F (French degrees), equivalent to 50 mg CaCO
3
or an equivalent
quantity of other Ca and Mg salts).
- It is recommended to have repeated station startup cycles with the fuel tap off in order to air the installation.
- If the central heating station is not used for a long period of time during the cold season, full emptying of the installation is
recommended to prevent damage caused by freezing.
8.1.2 Protection o the station in order to keep the warranty
Before and during installation, the central heating station must be kept away from impurities: construction dust, sand, copper
dust, fats etc as well as welding splashes, scoria. In any of theses cases, the installation must be washed with clean water mixed
with a highly concentrated cleaning agent.
Genereally, in order to keep the warranty it is necessary to apply any neccesary treatment to prevent the contamination of
water with the following:
Black mud (magnetite - Fe3O4) formed as a result of the continuous electrolyte corrosion occurring in any installation
which is not protected with an inhibitor.
Red mud (rust - Fe2O3) produced during oxidation.
Calcarous deposits produced especially on the hottest areas of the central heating station.
A combination o these three actors mentioned above causes the majority o the problems occurring with heating systems.
Fig.1.3

USER MANUAL CENTRAL HEATING STATION TYPE C15SPV24MEFM / C17SPV31MEF
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Caution!
The presence o these substances (black mud/ red mud/ calcarous deposits) means that the standard measures to
prevent problems o the heating system were not observed.
This is one o the causes resulting in losing warranty!
8.2 Gas connecting pipe
Caution!
Danger o death by poisoning and explosion because o breeches in the gas pipes and connections in case o
incorrect installation!
Installation o gas pipes is allowed to be per ormed only by an authorized agent. During installation all legal
stipulations, as well as the local regulations o gas distribution companies are to be observed.
When installing the gas pipe it is essential that it is not tensed so as not to create areas o leakage!
Caution!
Maximum sa ety pressure or the gas valve is 60 mbar! Going above this pressure limite may resul in damage.
Work pressure with G20 natural gas unctioning must be 20 mbar!
Gas pressure at the entry into the gas valve i GPL gas is used must be maintained between 30÷37 mbar!
Caution!
Is is obligatory to istall a pressure regulator on the uel input circuit, adjusted at 20 mbar.
Caution!
In case parasite voltage appears on the gas pipe, it can be insulated by installing an electroinsulating piece
(according to the Technical Norms or the planning and execution o natural gas input systems).
Central heating boilers C15SPV24MEFM/C17SPV31MEF function on GN natural gas or liquefied gas GPL. The gas connecting
pipe is made of stainless steel with an interior diameter of 16.4 mm. The gas input pipe must not have a diameter smaller than
that of the gas connecting pipe of the central heating station. The fuel input must be done according to applicable legal
stipulations.
8.3 General directions or the heating installation
Caution! Be ore connecting the central heating station care ully wash the entire heating installation! In this way, you
eliminate rom the pipes various debris such as welding splashes, scoria, grummet, putty, dirt or similar. Otherwise,
these substances can orm deposits in the heating switcher and can cause damage or mal unctioning.
Caution!
It is obligatory to install an impurity ilter on the return o the thermal circuit installation!
When installing connecting pipes it is essential or these not to be tensed to avoid creating areas o leakage!
Maximum working pressure allowed is 3bar.
Recommended working pressure is 1.5 bar!
Caution!
It is orbidden to use the central heating station without thermal agent or partilally illed – danger o explosion!
It is orbidden to use the central heating station i it is not completely aired!
The equipment is provided with a l capacity and 1 bar loading pressure expansion vessel. Before installing the equipment,
check whether this volume is sufficient. If not, an additional expansion vessel must be installed on the aspiration side of the
pump.
Caution!
Check the pressure inside the expansion vessel be ore commissioning.
Pressure inside the expansion vessel must be 0.8÷1bar.
8.4 General directions or the hot water circuit
Connect the central heating station to the hot water installation.
It is obligatory to install ilters to de-harden the water and a mechanical impurity ilter on the cold water input
connecting pipe!
Caution!
When installing connecting pipes it is essential or these not to be tensed to avoid creating areas o leakage!
The apparition o pressure shocks (input pressures higher than 3-4 bars in addition to symoultaneously activating
quick closing taps) can a ect the components o the hydraulic circuit inside the central heating station. We recommend the
installation o a pressure regulator adjusted to 3-4 bars!
Damage caused by the apparition o pressure shocks or by the use o higher pressure than recommended on the cold water
input circuit is not covered by the warranty!
We recommend the installation o a pressure regulator! Damage caused by the use o pressure higher than
recommended on the cold water input circuit is not covered by the warranty!
It is orbidden to install one-way valves on the the cold water input circuit.
The cold water input pipe o the hot water preparation circuit will always be open (closing the network is done only by
activating the taps at the consumer points) to allow take-over o possible dilatations on this circuit.
Note!
It is recommended that the distance between the hot water connecting pipe o the central heation station and the
nearest conumer is minimum 6m o pipe. Otherwiswe, there is always the risk o hot water burns.

USER MANUAL CENTRAL HEATING STATION TYPE C15SPV24MEFM / C17SPV31MEF
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8.5 Connecting pipe o the sa ety valve
Caution!
Danger o hot water burns!
The connecting pipe of the pressing of the safety valve is connected to the drain pipe to the sewage system.
Otherwise, there is always the risk of flooding, for which the manufacturer of the central heating station is not responsible.
8.6 Air/ burnt gases input/ output pipes
The central heating station does not use air from the room where it is installed or from the neighbouring rooms. Admission of air
necessary to an efficient and not dangerous burning is always from the outside.
Caution!
The kit will obligatory have an incline o 3% (approximately 2°) in order to eliminate condensation towards the exterior.
It is obligatory to install central heating stations in rooms with ventilation in accordance with applicable norms.
Danger!
It is orbidden to run the station without the air/ burnt gases input/ output pipes because it endangers the li e and health
o people. Installation is carried out only by authorized personnel using original spare parts provided by the
manu acturer.
Caution!
In order to obtain the e iciency declared by the manu acturer, while at the same time observing the limits o
compounds rom resulting burning gases, it is necessary to mount the diaphragms delivered with the central heationg
station.
8.7 Electric grid connection
The central heating station must be connected to one-phase network of 230V - 50Hz with protection null.
Dispersion withstand of the earthing switch (earthing) must comply with applicable norms (maximum 4 ohm, and the working
null must not have residual current).
Electric powering of the central heating station will be executed from a separate circuit provided with differential protection
fuses of 30 mA.
External connections must comply with applicable norms. Connection to the electric grid of the building must allow the entire
electric insulataion of the central heating station for situations when interventions are required.
Grid connection is done taking into account the symbolism of colours as follows: Brown = phase, Blue = null, Green and Yellow =
earthing.
The current plug must be accessible so that the user can easily disconnect it.
Caution!
It is not allowed to mount the central heating station with a de ective electric installation or with no earthing.
Danger o death by electric shock with electric contacts!
8.8 Installation illing and emptying
The following operations are executed to fill the installation:
- electrically power the central heating station;
- open the filling tap (fig. 1.4) of the central heating station and of the thermal/ house water installation:
- charge the boiler with a pressure of 0.4 bar shown on the display;
- open the air vent of the pump;
- activate the boiler pump to air the installation: for activation long press J
( ) and the pump will turn on, while the central heating station is OFF
(Stand-by);
- set the needed hydraulic characteristic on the pump (5, 6 or m H2O);
- continuue to charge the boiler up to 1.5 bar , pressure shown on the
display;
- close the filling tap of the central heating station;
- check the system to be water-proof. If there is leakage, solve the problem;
- leave the pump on until all noises on the installation stop. It is needed 2-3
complete airvent cicles of 50-60 sec each;
- airvent the radiators;
* igure conains ERP pump
- check the pressure in the installation shown on the display. If necessary, fill with thermal agent observing the above mentioned
steps;
- turn off the station pump by pressing J7 ( ) or by turning on the station by pressing POWER.
Caution! Obligatory operation!
Check the correct unctioning o the pump with no uel in the central heating station.
De icient thermal trans er can cause the melting o the vent pipe o the ventilator, errors o the central heating station
damage o the main switch o the station.
Incorrect airing o the installation can cause damage o the main heating switch.
Note!
Recommended pressure on the thermal circuit is 1.5 bars.
Fig.1.4

USER MANUAL CENTRAL HEATING STATION TYPE C15SPV24MEFM / C17SPV31MEF
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Emptying the central heating station
Emptying of the station implies the following:
- turn off the station by pressing Power si switch off the electric power, close the gas tap;
- close the thermal tap and the cold water input tap;
- open the filling tap (fig.1.4), and then the consumer point of hot house water.
Caution!
Danger o hot water burns when emptying the station.
9Operation instructions
9.1 Control Panel
The LMC1112 control panel (fig.1.5) allows the visualization and change of parameters defining the functioning of the central
heating station. It consists of:
- 8 keys (J1÷J8) - tab.3
- LCD display, where communication messages (graphic symbols) are displayed. The meaning of the 10 types of symbols
(S1÷S10) is presented in table 4.
Fig. 1.8 Functions of keys on the control panel
Table 3: Control panel keys
Key Symbol Description:
J1 CH + Used to increase the set thermal temperature or to navigate the installation submenu
J2 CH - Used to decrease the set thermal temperature or to navigate the installation submenu
J3 DHW + Used to increase the set temperature on hot water circuit or the value of the current parameter
in the installation submenu
J4 DHW - Used to decrease the set temperature on hot water circuit or the value of the current
parameter in the installation submenu
J5 POWER Used to switch the station on/ off
J6 RESET Used to reset the electronic control board from an error state
J Used to change the functioning mode winter/ summer
J8 LIGHT Used to activate/ deactivate the light on the display
Table 4: Description o graphic symbols in the LCD display
Tasta Adnotare Descriere:
S1 It diplays the temperature (°C), set value, parameter values, informative values, various
messages („On”, “SP”, “Co”, “EI”, “SI”, etc.)
S2 It displays informative values, parameter values, pressure
S3 It shows the state of the central heating station (Closed (OFF) = active symbol, Open (ON) =
inactive symbol)
S4 It shows the presence of flame
S5 It shows whether the set functioning mode is SUMMER (active symbol)
S6 It shows whether the set functioning mode is WINTER (active symbol)
S The symbol is displayed continuously, which means that the station functions as thermal station.
The symbol is displayed interrupted whenthe thermal temperature is set.
S8
If this symbol is displayed continuously it means that the station functions as hot water station.
The symbol is displayed interrupted whenthe hot water temperature is set.
S9 It shows the fact that the S2 symbol displays the value of the pressure inside the installation
(active symbol)
S10
It shows the fact that there was an unsaved change of parameters in the EEPROM
memory (it flashes)
9.1 Description o unctions and o graphic contexts diplayed on the control panel LMC1112
9.1.1 LIGHT unction
LIGHT k e y ( J8 fig.1.5) is used to activate/ deactivate the light on display function.
Fig.
1.5
LMC1112
Control panel
Fig.1.6

USER MANUAL CENTRAL HEATING STATION TYPE C15SPV24MEFM / C17SPV31MEF
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9.1.2. Graphic context – station startup
When started, the station is in an intermediary state for 5 seconds, necessary to initialise the system. During this interval the
diplay shows only the message “ On ” on the S1 symbol on the interface (see figure 1.6).
9.1.3. Graphic context - Stand-by
This context is associated with an inactive/ waiting state of the central heating station. In the stand-by
s t a t e a l l t h e a c t i v a t i o n e l e m e n t s a r e i n a c t i v e a n d e v e r y b u r n i n g
d e m a n d i s i g n o r e d .
An exception to the rule: the anti- reezing unction (generated by a value of water temperature
in the installation lower than 9°C, which will initiate a burning cycle to prevent the
freezing of the thermal agent in the installation.
Intrarea si iesirea din acest regim se face prin apasarea tastei POWER cel putin o secunda.
Actiuni posibile:
- POWER - comutarea intre starea ON/ Entering and exiting this regine is done by pressing POWER key for at least one
second.
Possible actions:
- POWER – comute between ON/OFF states;
- LIGHT – activation or deactivation of light functions.
Figure 1. is a good example of display in the stand-by state (pressure on the thermal installation 1,8 bar).
9.1.4. Graphic context – error state
The display of an error is sometimes asociated with a state of malfunctioning/ error of the station.
There are three types of errors:
- Critical errors: all the activating/state elements of the central heating station are inactive and any
burning request is ignored. Getting out of this critical error state is done by pressing the RESET key;
- Normal errors: all the activating/state elements of the central heating station are active and any
burning request is ignored. Getting out of a normal error state is done by pressing the RESET key;
- Informative errors: all the activating/state elements of the central heating station are active and all burning requests are
accepted. Getting out of an informative state is done automatically when the cause of error disappears.
In this context the diplay flashes a message with the error code.
Possible actions:
- RESET – reset critical or normal errors;
- LIGHT - activation or deactivation of light functions – possible only if the central heating station is not in a state of critical
error.
Figura 1.8 is a good example of display of an error (in our case E20).
9.1.5. Graphic context – waiting state
Waiting state is associated with a functioning state of the station, but with no burning request. All the
activating/state elements of the central heating station are active and all burning requests are accepted
if no error is present. In this state, the display shows pressure and thermal temperature, as well as the
functioning mode summer/ winter.
Possible actions:
- POWER - comute between ON/OFF states;
- IN/SU – comute between summer/ winter functioning modes;
- LIGHT - activation or deactivation of light functions;
- CH+ - display and setting of maximum thermal temperature;
- CH- - display and setting of minimum thermal temperature;
- DHW+ - display and setting of maximum hot water temperature;
- DHW- - display and setting of minimum hot water temperature.
Figura 1.9 is an example of display in the waiting state (pressure in the heating installation is 1,4 bar, working mode is summer,
and the temperature in the installation is 1 °C).
9.1.6. Graphic context – unctioning state
This state is associated with the presence of flame or the functioning of the circulation pump of the station. In this state, all the
activating/state elements of the central heating station are active and the burning request is accepted. The display shows the
delivered instant temperature on the circuit meeting the request (heating ot hot water – symbols S5 or S6), regardless of the
presence or lack of flame, the pressure inside the installation and the functioning mode summer/ winter.
Possible actions:
- POWER - comute between ON/OFF states;
- IN/SU comute between summer/ winter functioning modes;
- LIGHT - activation or deactivation of light functions;
- CH+ - display and setting of maximum thermal temperature;
- CH- - display and setting of minimum thermal temperature;
- DHW+ - display and setting of maximum hot water temperature;
- DHW- - display and setting of minimum hot water temperature.
Figures 1.10 and 1.11 are two examples of graphic display of this context. Figure 1.10 – pressure in the heating installation is
1,8 bar, central heating station is in winter mode, flame is present, heating demand is satisfied and the instant thermal
temperature is 43°C;
Figura 1.11 – pressure in the heating installation is 1, bar, central heating station is set on winter
mode, flame is present, station deliveres hot water, and the instant hot water temperature is 53°C.
9.1.7. Graphic context – adjustment o unctioning parameters
The adjustment of the main functions of the station (thermal temperature, hot water temperature) can be
done both in the waiting state and in the functioning state
When we enter the state display of these values, the last value previously set will be displayed. Only in the period the set value is
displayed we can make changes of its value. Practically, at any moment of functioning of the station, by pressing J1 (CH+) or J2
(CH-) keys, the set value of the thermal temperature will be displayed and can be changed.
Fig.1.
Fig.1.8
Fig.1.9
Fig.1.10
Fig.1.11
Fig.1.10

USER MANUAL CENTRAL HEATING STATION TYPE C15SPV24MEFM / C17SPV31MEF
11 din 1
Similarlry, at any moment of functioning of the station, by pressing the J3 (DHW+) or J4 (DHW-) keys, the set value of the hot
water temperature will be displayed and can be changed.
While doing these settings, the display will show the value of the set temperature (thermal or hot water),
the pressure in the installation and the functioning mode of the station (winter/ summer).
Getting out of this setting mode is done automatically i no key is pressed or at least 3 seconds.
Figures 1.12 and 1.13 are two examples of displaying temperature in the setting mode.
Figure 1.12 – pressure in the heating installation is 1,8 bar, central heating station is set on winter
mode, set value of thermal temperature is 42°C;
Figure 1.13 – – pressure in the heating installation 1,6 bar, central heating station is set on winter mode,
set value of hot water temperature is 60°C.
9.1.8. Graphic context - Service submenu
In the Service submenu, various functioning parameters of the central heating station can be viewed/ changed/ checked. This
submenu can be accessed only by service personnel authorised by KOBER SRL Vaduri Branch,
9.2 Central heating station startup
To startup the station press POWER key fig.1.5.
Choosing the unctioning mode winter/ summer
By pressing J7 key ( ) you can change the functioning mode winter/ summer. This can be viewed on the display, symbol
S5/S6 will be activated;
Adjusting temperature on the thermal circuit
The adjustment of temperature is done by pressing J1 and J2 keys. Press J1 to increase temperature and J2 respectively to
decrease temperature;
Adjusting water temperature on the hot water circuit
The adjustment of temperature is done by presing J3 and J4 keys. Press J3 to increase temperature and J4 respectively to
decrease temperature;
9.3 Functioning as waste hot water station (WHW)
The station can function as WHW in both seasons – winter and summer.
The WHW request has priority over the heating request in the „winter” mode.
The station can function as instant WHW or as accumulation boiler WHW (the boiler is purchased separately). For the
functioning of the station as an accumulation boiler WHW station please contact an authorised service company.
In intant regime, the minimum flow of hot water detected by the station is 2.4 l/min.
For confort in using the station as a WHW station we recommend to exploit the station at a flow of approximately -8 l/min.
When the station functions with low flows, the station functions continuously at the minimum charge as long as the hot water
temperature is under the threshold limit of 63°C. When the hot water temperature reaches the mentioned limit of 63°C, the
burner is closed and a new burning will happen when the hot water temperature is lower than the limit of 60°C.
When the station functions with high flows, the hot water temperature will be the opposite of the hot water flow, but lower than
the set temperature.
With instant WHW configuration on request the CONFORT function can be activated/ deactivated. Please contact an
authorized service company.
This function allows the delivery of hot water as soon as possible, while keeping the boiler hot. If the function is active, the boiler
starts when the hot water temperature is equal to the set hot water temperature; the boiler stops when the hot water
temperature is 8°C ( fixed value) higher than the set hot water temperature. If the water heated in this way is not consumed
within one hour, the CONFORT function is automatically deactivated.
9.4 Functioning as heating station (HS)
The station functions in this mode when „winter” season is selected. For the selection of the type of heating installation (floor or
radiators) please contact an authorised service company.
If a thermoregulator is connected to the electronic board, the stations functions in thermal mode only when the surrounding
temperature is lower than the set temperature in the thermoregulator.
9.5 Preset unctions related to station sa ety
1. Anti- reezing protection unction. If the temperature in the installation drops below 9°C, the system turns on the heating at
minimum charge until the temperature reaches 30°C.
2. Post-circulation o the hot water and heating pump unction. The post-circulation cycle starts only if the system is not in the
BURNING state.
Advantages:
a) it prevents the water from becoming stationary at high temperatures inside the heat switch. In this way, calcareous deposits
are reduced significantly
b) it prevents water from boiling inside the heat switch in the post-heat interval.
These advantages have as result the protection of the heat switch.
3. Pump anti-blocking system and three-way valve.
If the station did not go through a burning cycle in the last 24h, the pump will be started for 12 seconds to avoid its blocking. In
this time the three-way valve is also activated and deactivated.
4. Post-ventilation
After each station stop, the ventilator still functions for some time to evacuate completely the burning gases out of the station
and also the water vapours they contain. In this way, both the ventilator control electric circuit and the primary heat switch,
which cools down partially, are protected.
5. “Legionella” bacteria prevention unction
This function is active for the functioning of the station as accumulation boiler WHW.
When hot water is prepared in the boiler, the ANTILEGIONELLA function is actived automatically. This function implies that once
a week (on Wednesdays, between 03AM ÷ 04AM) the temperature of the water in the boiler is kept at the value of 65°C.
9.6
Setting additional unctions
Setting additional functions is done only in the "Service" menu. Please contact an authorised service company.
Fig.1.12
Fig.1.13

USER MANUAL CENTRAL HEATING STATION TYPE C15SPV24MEFM / C17SPV31MEF
12 din 1
9.7 Error signals
Possible errors of the system are indicated by the following codes which appear on the display.
Table 5: Meaning of error signals which appear on the display:
Code Non-
volatile Meaning Resetting mode
E01 YES Problems of the feeding source AUTO- RESETTABLE when the cause
disappears
E02 NO Malfunction of the electronic board AUTO- RESETTABLE when the cause
disappears
E04 NO Malfunctions of the interface mode AUTO- RESETTABLE when the cause
disappears
E06 NO Frequent resetting of the electronic board Manually resettable by pressing RESET
E0 NO Installation parameters in the electronic board memory
are corrupted Manually resettable by pressing RESET
E08 YES Internal memory is corrupt Manually resettable by pressing RESET
E10 NO
Water system pressure is incorrect.
Water pressure in the installation is too low (lower than 0,8
bars).
Resettable error when the cause disappears!
Fill the installation with water to the recommended
working pressure (1.5 bars) and monitor the pressure for a
few days.If pressure continues to drop, check for water
leakage on one of the joints of the thermal installation. If
you checked and it is allright, but the presuure continues
to drop, contact an authorised service company.
AUTO- RESETTABLE when the cause
disappears
E11 YES Rapid increase of the output water temperature AUTO- RESETTABLE when the cause
disappears i
E13 NO Difference between input/ output temperatures too big AUTO- RESETTABLE when the cause
disappears
E15 YES No water flow signal when the boiler pump is activated Manually resettable by pressing RESET
E20 YES Failed burning after three attempts Manually resettable by pressing RESET
E22 YES Malfunction of flame detection Manually resettable by pressing RESET
E23 YES Malfunction of flame detection Manually resettable by pressing RESET
E25 YES BCU malfunction Manually resettable by pressing RESET
E30 YES Malfunctioning burnt gases sensor Manually resettable by pressing RESET
E31 NO Malfunctioning thermal input sensor Manually resettable by pressing RESET
when the cause disappears
E32 NO Malfunctioning thermal output sensor Manually resettable by pressing RESET
when the cause disappears
E35 NO Malfunctioning external temperature sensor Manually resettable by pressing RESET
when the cause disappears
E36 NO Mafunctioning WHW temperature Manually resettable by pressing RESET
when the cause disappears
E3 NO Malfunctioning boiler temperature sensor 1 Manually resettable by pressing RESET
when the cause disappears
E38 NO Malfunctioning boiler temperature sensor 2 Manually resettable by pressing RESET
when the cause disappears
E40 YES Temperature of burning gases is too high Manually resettable by pressing RESET
when the cause disappears
E41 NO Temperature of thermal agent on the thermal input is too
high or too low
Manually resettable by pressing RESET
when the cause disappears
E42 NO Temperature of thermal agent on the thermal output is
too high or too low
Manually resettable by pressing RESET
when the cause disappears
E45 NO External temperature too high Manually resettable by pressing RESET
when the cause disappears
E46 NO WHW temperature too low/ too high Manually resettable by pressing RESET
when the cause disappears
E4 NO Temperature displayed by boiler sensor 1 is too low/ high Manually resettable by pressing RESET
when the cause disappears
E48 NO Temperature displayed by boiler sensor 2 is too low/ high Manually resettable by pressing RESET
when the cause disappears
E50 YES Malfunctioning with feeding of ventilator at 230VAC Manually resettable by pressing RESET
E51 YES Error with command/ state of ventilator Manually resettable by pressing RESET
E52 YES Incorrect ventilator functioning (ex. turation) Manually resettable by pressing RESET

USER MANUAL CENTRAL HEATING STATION TYPE C15SPV24MEFM / C17SPV31MEF
13 din 1
9.8 Station switch o in sa ety conditions
If the user observes abnormal functioning of the equipment, if error codes are displayed repreatedly or if the user cannot
understand the actions of the central heating station, the user must stop the functioning of the station immediately and in
maximum safety conditions. For this, the user must perform the following operations:
- Press ON-OFF key and interrupt the functioning of the station;
-Disconnect the central heating station from the main power line by unplugging it (if applicable);
- Interrupt the fuel circuit by turning off the gas taps;
-Interrupt the flow of house water and of heatined water by turning off the corresponding taps for these circuits;
After the station is switched off in safety conditions, the user will contact the authorized service company in the area.
9.9 User training
It is obligatory for the specialized personnel commissioning the station to instruct the user about the following aspects:
1. Central heating station switch on/ off procedure in safety conditions by checking the following elements:
- electrical power connection;
- fuel (gas) connection;
- feeding and filling the thermal circuit;
- the station filling tap must be turned off;
- the pressure in the installation by reading the control panel (1.5bar);
- the station taps on the house water circuit must be turned on.
2. The functioning way of the station and possible problems that may occur. Also each key and symbol on the control panel
must be explained.
3. Warn the user that a drop in the water pressure of the system is caused by loss of thermal agent which needs to be
mended before using the station again.
4. Warn the user on the works performed on the air/ gases input/ output systems. Warn the user that changing them is strictly
orbidden.
5. It is recommended that the user should have the station verified by an authorized person at least once a year.
6. Warn the user about the the precautions that need to be taken against freezing.
7. Hand the user the user manual of the central heating station.
At the end of training a commissioning statement is signed (table 2), by which the user signs that they are aware of the correct
way of using the central heating station. .
This statement is also signed by the authorized person who commissioned the central heating station.
The authorised person who commissions the station has the right to refuse to sign the station commissioning statement if they
notice defects of the local connecting installations and will not sign the commissioning statement until these defects have been
remedied.
9.10 Quality Conditions and Warranty
The company KÖBER S.R.L. - VADURI BRANCH as the manufacturer, guarantees the correct functioning of the central heating
station if are observed ALL conditions for the installation, commissioning, use and periodical technical revision established in the
“Warranty Certificate” given by the manufacturer and signed by the authorized company in the presence of the beneficiary
when the product is purchased.
The Warranty Certi icate that comes with the product details all the limits o the warranty. Please care ully ollow the directions in
the Warranty Certi icate and be ore reporting any mal unctioning o the station make sure that all the local connecting
installations are o the required quality!
Caution!
Not observing the conditions o the warranty certi icate results in losing warranty.
10 Inspection and maintenance
10.1 Inspection and maintenance intervals
It is obligatory to perform the periodical technical inspection in accordance to applicable law.
In the warranty period of the station the periodical technical inspection will be performed by companies authorised by KÖBER
S.R.L. - VADURI BRANCH.
In order to ensure permanent availability, safety in functioning, efficiency and extended working life, it is recommended that a
yearly technical inspection should be performed by the authorized agreed company. This is why we recommend that you sign
a service and maintenance agreement.
It is recommended that this inspection should be performed before the cold season when the station is used at full capacity.
Danger!
Inspections, maintenabce and repair work are allowed only to technicians authorised and agreed by KÖBER S.R.L. -
VADURI BRANCH.
Not having inspections/ maintenance work can result in material and physical damage.
In order to bene it rom all the station unction or an extended period o time we recommend the use o original
spare parts.

USER MANUAL CENTRAL HEATING STATION TYPE C15SPV24MEFM / C17SPV31MEF
14 din 1
10. Drawings necessary or mounting and commissioning
10.1. Types o input-output con igurations or mounting
C12
C12x
C8 2
C32
C32 x
C42
C22 C12
C12
C12 x
10.2. Minimum distances or mounting the co-axial kit
GARAGE, ANNEX, ETC
LEGEND:
A – distance under the window/ ventilation hole = 300mm
B - distance over the window/ ventilation hole = 300mm
C – distance left/ right to the window/ ventilation hole = 300mm
D, E – distance from the roof/ gutter = 250mm
F – distance from the garage roof/ balcony = 250mm
G – distance to vertical gutter = 250mm
H – distance to internal/ external corners = 250mm
H* - distance to windows/ doors = 300mm
I – distance to ground/ balcony = 300mm
J – distance over the door = 600m
L – distance to the door/ window in the garage = 1200mm
M – vertical distance to another terminal = 1500mm
N – horizontal distance to another terminal = 300mm
O – distance to the wall of another construction = 1200m
H

USER MANUAL CENTRAL HEATING STATION TYPE C15SPV24MEFM / C17SPV31MEF
15 din 1
10.3 Hydraulic pump characteristic
When designing the thermal installation, the hydraulic pump characteristics need to be taken into consideration.
Pump setting:
The pump can be set to function in four modes (4 steps).
Table 6 – Pump functioning modes
(*)functioning mode set in the factory.
UPM3 Flex As
[m]
LED 1
red
LED 2
yellow
LED 3
yellow
LED 4
yellow
LED 5
yellow
4 • •
5* • • •
6
•
•
•
•
•
•
•
To set on another curve please contact the authorized service company.
NOTE!
To save on energy and to maintain the possible unctioning noises to a low level, please choose a low characteristic
curve.
P
Pump pressure [kpa]
80
70
60
50
40
30
20
10
0
Pump flow Q[mc/h]
LED 1

USER MANUAL CENTRAL HEATING STATION TYPE C15SPV24MEFM / C17SPV31MEF
16 din 1
10.4 Functioning schemes covered by warranty
10.4.1 Central heating with radiators and instant preparation o hot water
This note is inform ative.
KÖBER Ltddon’t assum es no responsibility for its proper
functioning.
RADIATORS NETWORK
RT
TT
CMC1X
SE
A
TA
SC
ACM
PC
V3C
BOTTOM PLAN
Legend :
TA - Ambient thermostat
SE - Exterior temperature sensor
TT - Central heating Output
RT - Central heating Input
A - Cold water input
PC - Boiler circulation pump
CMC1X - Boiler BCU
ACM - DHW domestic hot water
V3C - Three-way valve
SC - Primary heating exchanger
10.4.2 Floor central heating and instant preparation o hot water
T his note is inform ative.
KÖBER Ltd don’t assum es no responsibility for its proper
functioning.
Legend :
TA - Ambient thermostat
SE - Exterior temperature sensor
TT - Central heating Output
RT - Central heating Input
A - Cold water input
PC - Boiler circulation pump
CMC1X - Boiler BCU
ACM - DHW domestic hot water
V3C - Three-way valve
SC - Primary heating exchanger
BOTTOM PLAN
TT
CM C1XS E
A
TA
SC
ACM
PC
V3C
RT
FLOOR H E ATING

USER MANUAL CENTRAL HEATING STATION TYPE C15SPV24MEFM / C17SPV31MEF
1 din 1
10.4.3 Central heating with radiators and accumulated preparation o hot water (accummulation boiler)
T his note is inform ative.
KÖ BER Ltd don’t assumes no responsibility for its proper
functioning.
RADIATORS NETWORK
Legend :
TA - Ambient thermostat
SE - Exterio r temperatu re sensor
TT - C entral heating Ou tput
RT - Central heating In put
A - Cold water input
PC - Boiler circulation pump
CMC1X - Boiler BCU
ACM - DHW domestic hot wate r
V3C - Three-way valve
SC - Primary heating exchanger
BOTTOM PLAN
CMC1X
SE
SC PC
V 3C
RT
TT
TA
TB
TS
AR
A
RB
ACM
TI
P C
TS - Thermostat
TI - Thermometer
TB - Water tank output
RB - Water tank input
10.4.4 Floor central heating and accumulated preparation o hot water (accummulation boiler)
T his note is inform ative.
KÖ BER Ltd don’t assum es no responsibility for its proper
functioning.
Legend :
TA - Ambient th ermo stat
SE - Exterior temperatu re se nsor
TT - Central heating Output
RT - Central heating In put
A - Cold wa ter in put
PC - Boiler circula tion pump
CMC1X - Boiler BCU
ACM - DHW domestic hot water
V3C - Three-way va lve
SC - Primary hea ting exchanger
FLOOR HE ATIN G
TS - Thermosta t
TI - Th ermometer
TB - Water tank output
RB - Water tank input
BOTTOM PLAN
CMC1XSE
S C PC
V 3C
RT
TT
TA
TB
TS
AR
A
RB
ACM
TI
PC