Kober C38GC45V1 User manual

KÖBER SRL VADURI BRANCH
USER MANUAL
CONDENSING WALL-MOUNTED GAS BOILER
C38GC45V1
The image is for presentation only. The product
differs depending on the model purchased,
on the area and the acquisition period.
KÖBER SRL, Vaduri no.25, Alexandru cel Bun Commune, Neamt 617511, Romania
Tel.:[phone], Fax: [phone]
www.motan.ro
PM004406

REV 01.08.2022 page 2 of 37
KÖBER SRL
VADURI BRANCH CONDENSING WALL-MOUNTED BOILERS C38GC45V1
Contents
CONTENTS .............................................................................................................................................................................. 2
1 SAFETY INSTRUCTIONS AND SYMBOLS ....................................................................................................................... 4
1.1 Validity of instructions ..................................................................................................................................................................... 4
1.2 CE marking ...................................................................................................................................................................................... 4
1.3 Description and operation of the device ..................................................................................................................................... 4
1.4 Intended use ................................................................................................................................................................................... 4
1.5 Product label .................................................................................................................................................................................. 4
2 DESCRIPTION OF THE BOILER ....................................................................................................................................... 5
2.1 Structure .......................................................................................................................................................................................... 5
2.2 Constructive and functional characteristics ................................................................................................................................ 6
3 SAFETY INSTRUCTIONS ................................................................................................................................................. 7
3.1 Safety instructions ........................................................................................................................................................................... 7
4 ASSEMBLY ..................................................................................................................................................................... 7
4.1 Unpacking the product .................................................................................................................................................................. 7
4.2 Mounting set ................................................................................................................................................................................... 7
4.3 Overall dimensions and mounting position .................................................................................................................................. 8
4.3.1 Place of installation ..................................................................................................................................................................... 8
4.3.2 Minimum required distances / free spaces for mounting ........................................................................................................ 9
4.4 Fixing the boiler ............................................................................................................................................................................... 9
5 INSTALLATION ............................................................................................................................................................ 10
5.1 Conditions for boiler installation ................................................................................................................................................... 10
5.1.1 Installation instructions .............................................................................................................................................................. 10
5.1.2 Indications for the protection of the boiler in order to keep the warranty ........................................................................... 10
5.2 Gas connection ............................................................................................................................................................................ 10
5.3 Connecting the boiler to the heating installation ...................................................................................................................... 11
5.4 Connecting the boiler to the domestic hot water circuit ......................................................................................................... 11
5.5 Condensate drain pipe connection ........................................................................................................................................... 12
5.6 Safety valve connection .............................................................................................................................................................. 13
5.7 Air / flue inlet / exhaust pipes ....................................................................................................................................................... 13
5.7.1 Use of coaxial condensation kit (plastic inner tube) -fig.5.7 .................................................................................................. 13
5.7.2 Use of dual kit ............................................................................................................................................................................ 14
5.7.3 Use of vertical coaxial kit .......................................................................................................................................................... 15
5.8 Connection to the electrical network ......................................................................................................................................... 15
5.8.1 Connecting an ambient thermostat or outdoor sensor ......................................................................................................... 16
5.8.2 Connecting the sensor to the external boiler ......................................................................................................................... 17
5.8.3 Connecting the 3-way valve ................................................................................................................................................... 17
5.9 Filling and emptying the installation ............................................................................................................................................ 17
6 OPERATING INSTRUCTIONS - USER INTERFACE......................................................................................................... 19
6.1
Control panel
type LMC201 ........................................................................................................................................................ 19
6.2
Description of functions and
graphical contexts displayed by LMC1X control panel ......................................................... 20
6.2.1 Graphic context - Display error E88 ......................................................................................................................................... 20
6.2.2 Graphic context – boiler start................................................................................................................................................... 21
6.2.3 LIGHT function............................................................................................................................................................................ 21
6.2.4 Graphic context - Standby state (OFF / OFF) ......................................................................................................................... 21
6.2.5 Graphic context - standby status (ON / ON) .......................................................................................................................... 21
6.2.6 Graphic context - error status .................................................................................................................................................. 22
6.2.7 Graphic context - HOLIDAY submenu ..................................................................................................................................... 22
6.2.8 Graphic context - COMFORT submenu .................................................................................................................................. 22
6.2.9 Graphic context - Activation of the VTP function - Periodic Technical Verification ............................................................ 22
6.2.10 Graphic context - SERVICE submenu ................................................................................................................................... 23
7 START-UP AND USE OF THE BOILER ............................................................................................................................ 23
7.1 Commissioning works.................................................................................................................................................................... 23
7.2 Starting the boiler .......................................................................................................................................................................... 24
7.2.1 Starting the boiler ...................................................................................................................................................................... 24
7.2.2 Heating operation ..................................................................................................................................................................... 24
7.2.3 Domestic hot water operation through the boiler (see chap. 10.5 "Operating diagrams") ............................................... 24
7.3 Preset boiler safety functions ....................................................................................................................................................... 25
7.4 Switching off the boiler safely ...................................................................................................................................................... 25
7.5 User training ................................................................................................................................................................................... 26
7.6 Quality and warranty conditions ................................................................................................................................................. 26
8 INSPECTION AND MAINTENANCE............................................................................................................................. 26
8.1 Inspection and maintenance intervals ....................................................................................................................................... 26
8.2 Maintenance works ...................................................................................................................................................................... 27
9 DESCRIPTION OF THE ERRORS AND THE WAY OF TROUBLESHOOTING THEM ......................................................... 28
10 DISPOSAL OF ELECTRICAL AND ELECTRONIC WASTE (GEO 5/2015) ...................................................................... 29
11 ANNEXES .................................................................................................................................................................... 30
11.1 Sketches necessary for installation and commissioning ......................................................................................................... 30
11.2 Recommended minimum distances for mounting the coaxial kit ........................................................................................ 30
11.3 Hydraulic characteristic of the pump...................................................................................................................................... 32
11.4 Operating diagrams ................................................................................................................................................................. 34
11.4.1 Central heating with radiators .............................................................................................................................................. 34

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KÖBER SRL
VADURI BRANCH CONDENSING WALL-MOUNTED BOILERS C38GC45V1
11.4.2 Central underfloor heating ................................................................................................................................................... 34
11.4.3 Central heating through the floor and radiators................................................................................................................. 35
11.4.4 Central heating by radiators and boiler with coil ............................................................................................................... 35
11.4.5 Central heating through the floor and boiler with coil ....................................................................................................... 36
11.4.6 Mixed central heating (with radiators and underfloor) and coil water tank .................................................................... 36
11.4.7 Central heating with radiators, coil water tank and solar collectors ................................................................................. 37
11.4.8 Mixed central heating (with radiators and underfloor), coil water tank and solar collector .......................................... 37

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KÖBER SRL
VADURI BRANCH CONDENSING WALL-MOUNTED BOILERS C38GC45V1
1 SAFETY INSTRUCTIONS AND SYMBOLS
When installing the boiler, please follow the safety instructions in this manual!
This manual is the property of KÖBER SRL- VADURI BRANCH. It is forbidden to copy or reproduce it without the written approval
of KÖBER SRL-VADURI BRANCH.
In the following, the symbols used in the text are made explicit:
Danger! -direct danger to bodily integrity and life;
Danger! -danger of death from electric shock;
Caution! -potentially hazardous situation for the product and the environment;
Indication! -useful information and indications. This symbol indicates a required activity;
1.1 Validity of instructions
These instructions are valid exclusively for condensing wall-mounted boilers of the C38 * range, models:
MODEL TRADE NAME POWER FUNCTIONS PROVIDED
C38GC45V1
CONDENS 100 45 CH2 45 kW
HEATING PRODUCTION, WITHOUT 3-WAY
VALVE
Where:
C38 - family of boilers / internal coding;
G - type of fuel - gas;
C- in condensation;
45- the maximum nominal power that the boiler can provide, in kW.
The boiler is designed to use gas of classes: G20, G25, G25.1, G31.
Caution!
The type of gas for which the device is set in factory is natural gas, G20.
The installation of the product for the use of another type of gas other than the one for which the appliance was
set int the factory is prohibited and leads to the loss of the warranty!
Caution!
The use of another type of gas is prohibited.
1.2 CE marking
The CE marking applied on this product guarantees that the appliance meets the essential conditions specified in the
European legislation in force:
- the European regulation on appliances consuming gaseous fuels EU 2016/426;
- EcoDesign Directive 2009/125 / EC;
- the directive on energy efficiency 92/42 / EEC and the European Regulations no. 811-814 / 2013;
- Directive on electromagnetic compatibility 2004/108 / EC (eg 89/366 / EEC);
- low voltage directive 2006/95 / EC (ex. 73/23 / EEC).
1.3 Description and operation of the device
The boiler of the C38 range represents a device that consumes gaseous fuel (natural gas) which has the role of transforming
the energy of gaseous fuel, by combustion, into thermal energy. This device operates unattended due to the protection and
control systems it is equipped with.
1.4 Intended use
- The boilers of the C38 range are designed according to current technical standards and are built in accordance with the
recognized safety norms;
- In case of improper or non-compliant use, the health or life of users or third parties may be endangered, respectively the
boiler or other material goods may be affected;
- This device must not be used by persons (including children) with limited or inexperienced mental, sensory and / or lack of
knowledge;
- The boiler provides heat in closed installations of central heating and domestic hot water as instant. Use for other purposes or
for purposes other than those provided is considered inconsistent with the intended use. For any damage resulting from this,
the manufacturer / supplier assumes no liability. The risk is borne exclusively by the user;
- Follow the instructions for use and installation
of all the related documentation, as well as of the inspection and
maintenance provisions which are an integral part of the use in accordance with the intended use.
Caution!
Abuse of any kind is prohibited.
1.5 Product label
The technical operating parameters of your boiler can also be found on the product label that is pasted from the factory on
the side wall of the boiler or on the front cover of the boiler, depending on the model.

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KÖBER SRL
VADURI BRANCH CONDENSING WALL-MOUNTED BOILERS C38GC45V1
2 DESCRIPTION OF THE BOILER
2.1 Structure
2.1.1The structure of the condensing wall-mounted boiler model C38GC45V1
Tab. 2.1Condensing wall-mounted boiler components
Caution!
The C38GC45V1 gas boiler is not equipped with an expansion tank; its installation and connection must be done by
the installer. Installing the power plant in an installation without an expansion tank is not covered by the warranty!
Fig 2.1
1 Main heat exchanger 10 Pressure sensor
2 Primary circuit overtemperature
thermostat 11 Circulation pump
3 Flowswitch 12 Fan with built-in nozzle
4 District heating temperature sensor 13 Ignition electrode
5 Condensation siphon 14 Ignition transformer
6 Automatic aerator 15 Flue gas temperature sensor
7 Gas valve 16 Pressure gauge
8 Electronic board box 17 Filling valve
9 Overpressure valve 3 bar 18 Heating return temperature sensor

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KÖBER SRL
VADURI BRANCH CONDENSING WALL-MOUNTED BOILERS C38GC45V1
2.2 Constructive and functional characteristics
Tab. 2.2.1: Technical characteristics of the boiler model C38GC45V1:
Name CONDENS 100 45 CH2
Type
C38GC45V1
Gas category II2H3P (GN-G20 ; GPL-G31)
Circulation Forced
Combustion chamber
Condensation
Yield stars (dir. 92/42 / EEC)
****
NOx class (G20)
5
Energy efficiency class in district heating operation A
Energy efficiency class in operation on domestic hot water A
Nominal caloric flow min / max - district heating G20 kW
5.1 / 46.95
G31
kW
6,1
-
47,1
Maximum rated power (80/60 ° C) (kW) G20 kW
44.7
G31 kW
44,6
Maximum rated power (50/30 ° C) (kW) G20 kW
49.6
G31 kW
49,5
Useful efficiency at nominal caloric flow at 80/60 ° C G20 %
97.33
Useful efficiency at nominal caloric flow at 50/30 ° C G20 %
105.70
Maximum nominal fuel consumption depending on the
condensing / non-condensing operating mode
G20 mc/h 4.97
G31 mc/h 1,92
Seasonal energy efficiency related to space heating in active mode ηS (%) 91
Condensation amount (50/30 ° C) 3.3 l / h
GN at connection (after reducer)
20 mbar (max. 25 mbar, min. 17
mbar)
GN maximum allowable 35 mbar
Modulation report 1: 9
Pressure on the district heating circuit minimum 0.8 bar - maximum 3 bar
Temperature adjustment range 30 ÷ 80 ° C
Floor system temperature adjustment interval 15 ÷ 45 ° C
Boiler temperature adjustment range on the boiler 30 ÷ 60 ° C
Electrical
characteristics
Feeding
~ 230VAC / 50 Hz
Nominal power
180 W
Interface
Display type
LCD
Display size
4.3 inches
Constructive features
Height
788 mm
Width
400 mm
Depth
372 mm
Height with elbow mounted
938 mm
Weight
~ 37 kg
Primar
y heat exch
anger capacity
~4,2 l
CONNECTIONS
Heating input and output 1''
District heating filling 1/2 ''
Gas supply 3/4 ''
Hydraulic group
Bronze material
Exhaust type
C13; C13x; C33; C33x; C43; C43x;
C83; C83x; C93; C93x
Type of exhaust pipe **
Lungim
e kit coaxial D60/D100 min.
1m - max. 20m
Lungime kit dual D80/D80 min. 1m -
max. 5m
Flue gas temperature (return temperature 30 ° C) ~ 59 ° C
Protection class IPX4D class
Informative values:
The maximum recommended volume of water in the
installation 200 l
(**) - The boiler is delivered standard with coaxial kit, the dual kit is delivered as an accessory on request (see chap. 5.7.2)

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KÖBER SRL
VADURI BRANCH CONDENSING WALL-MOUNTED BOILERS C38GC45V1
3 SAFETY INSTRUCTIONS
3.1 Safety instructions
3.1.1 Installation and adjustment
Installation can only be performed by an authorized installer. It also takes responsibility for the correct installation and for the
first commissioning. Carrying out the adjustment works as well as the maintenance and repair is allowed only to a company
authorized and approved by KOBER SRL Vaduri.
Danger!
Danger to life due to poisoning and explosion due to leaks in the gas routes in case of irregular installation!
Danger of damage when using improper tools. When tightening or loosening threaded joints, use only suitable
fixed wrenches (no tubular wrenches, extension wrenches, etc.).
3.1.2 Smell of gas
When the smell of gas appears, the following will be taken into account:
- Do not operate the electrical switches in the dangerous area;
- Do not use open flames;
- Do not smoke in the dangerous area;
- Do not use the phone in a dangerous area;
- Close the gas valve;
- Ventilate endangered area;
- Notify the gas distribution company.
3.1.3 Changes in the adjacent area of the heater
No operation to modify the following installations is allowed:
- The boiler;
- For gas, water pipes and electricity cables;
- For air / gas intake / exhaust pipes.
4 ASSEMBLY
4.1 Unpacking the product
1. Remove the product from the carton.
2. Remove the protective film from the product.
4.2 Mounting set
Check that the mounting set is complete and undamaged - see table 4.1.
Tab. 4.1 Mounting set
Pos. Pcs. Name
1 1
Boiler *
* The image is for presentation only.
The product differs depending on
the model purchased, the area
and the period of purchase.
The 230Vac power cord does not
have a plug. It will be mounted
when installing the product, at the
customer's expense.
2
1
Boile
r support
3 1
Small bag
-
contains:
- mounting dowels 8x80 - 2 pcs.
4 1
Printed package
-
contains:
- technical manual - 1 pc.
- declaration of conformity - 1 pc
- warranty certificate and
commissioning report -1 pc.
3
4
Fig.4.1

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KÖBER SRL
VADURI BRANCH CONDENSING WALL-MOUNTED BOILERS C38GC45V1
4.3 Overall dimensions and mounting position
4.3.1 Place of installation
When choosing the installation location, please consider the following safety instructions:
Caution!
Do not install the boiler in areas endangered by frost! In case of frost the boiler can be damaged.
These devices cannot be installed and used outdoors. External installation may cause malfunctions.
Caution!
It is not recommended to install the heating boiler in bathrooms, kitchens, near a swimming pool, laundry or other
areas with high humidity.
The boiler can only be installed in premises with a maximum humidity of 60% in the range of 20-30 ° C, in order to
prevent damage to the electronic components.
Caution!
The combustion air of the boiler must not contain: chlorine, ammonia, alkaline agents, halogenated hydrocarbons,
freon, gypsum-cardboard particles, lint, dirt or dust; otherwise damage to the heat exchanger may occur. The boiler
must NOT be installed in an environment with high humidity, dust, vapors, condensation or with ambient temperatures
higher than + 50 ° C or below 15 ° C. These substances can lead over time to the formation of corrosion in the
appliance and in the air / gas intake / exhaust pipes.
FIG. 4.2 Overall dimensions and mounting positions of thermal boiler model C38GC45V1:
The legend:
A - Fuel supply connection
B - District heating connection
C- Heating circuit charging connection
D - Heating return connection
Fig. 4.2

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KÖBER SRL
VADURI BRANCH CONDENSING WALL-MOUNTED BOILERS C38GC45V1
4.3.2 Minimum required distances / free spaces for mounting
Both for the installation / assembly of the boiler, and
for carrying out subsequent maintenance works, you
need the following minimum distances (fig. 4.3),
respectively minimum free spaces for installation:
- distance from the front: 500 mm;
- distance from the sides: 150 mm;
- distance from the bottom: 250 mm;
- distance from the top: 400 mm;
Caution!
Danger of damage to the boiler due to
incorrect fixing!
The device can only be mounted on a flat, fixed
surface.
Indication!
The minimum distances / free mounting
spaces mentioned are also valid for mounting in
recessed furniture.
4.4 Fixing the boiler
- Drill two holes for fixing the boiler support (1);
- Mark the position of the exhaust / intake piping;
- Mount the boiler support (1) with the supplied dowels and screws (2, 3) on the wall (fig.4.4);
- Suspend the boiler (4) on the boiler support.
Fig. 4.3
Fig. 4.4

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KÖBER SRL
VADURI BRANCH CONDENSING WALL-MOUNTED BOILERS C38GC45V1
5 INSTALLATION
5.1 Conditions for boiler installation
5.1.1 Installation instructions
The boiler will be subjected to the corrosion effect, from the moment it is filled with water. For granting of the warranty, during
the whole warranty period, it is essential that the following installation instructions are taken into account in order not to
aggravate the corrosion phenomenon.
 The flue gas must have a sulfur content within the limits of the European standard in force: a maximum of 150 mg / m3 is
accepted for a short period of time, but the annual average must be 30 mg / m3.
Combustion air must not contain: chlorine, ammonia, alkaline agents, halogenated hydrocarbons, freon, drywall, lint, dirt
or dust;
Installing the boiler near a swimming pool, a washing machine or laundry, can lead to contamination of the combustion
air with these compounds;
 The pH of the water must be within the following limits: 7.5 <pH <8.5 and if the installation contains aluminum
components, it must be less than 8.5.
 It is recommended to regularly check the pH of the heating agent, if the value does not fall within the limits given by the
manufacturer, it is treated again;
 The hardness of the water must be within the limits: 5 ° F <TH <15 ° F (5 ° F (French degrees), the equivalent of 50 mg CaCO3
or an equivalent amount of other Ca and Mg salts);
 Maximum permissible free residual chlorine content of 0.5 mg / l and maximum permissible chloride level of 250ppm;
 It is recommended to make repeated starts of the boiler, with the fuel valve turned off, in order to ventilate the installation.
Opening and closing the 3-way valve, by permuting in summer / winter also allows a better ventilation of the installation.
 If the boiler is not used for a long time in the cold season, it is necessary to completely empty it in order not to damage
due to frost. The use of antifreeze is not covered by the warranty.
5.1.2 Indications for the protection of the boiler in order to keep the warranty
Before and during the installation, the boiler must be protected from the inclusion of impurities: construction dust, sand, copper
dust, grease, etc. as well as welding splashes, slag. In any of these cases, the installation must be washed well with clean
water, mixed with a very concentrated cleaning agent.
In general, in order to maintain the warranty, it is necessary to apply any treatment necessary to prevent water contamination
with the following:
 Black sludge (magnetite - Fe3O4) formed as a result of continuous electrolytic corrosion in any unprotected
installation with an inhibitor;
 Red mud (rust - Fe2O3) - is a product of oxidation;
 Limestone deposits that are deposited especially on the hottest areas of the boiler;
The mixture of the three factors listed above causes most of the problems in your heating system.
Caution!
The presence of these substances (antifreeze / black mud / red mud / limescale deposits) means that the standard
measures to prevent problems in your heating system have not been met.
This is a cause a loss of commercial warranty!
5.2 Gas connection
The central unit is connected to the gas supply installation - through connection A (fig. 5.1),
Danger!
Danger to life due to poisoning and explosion due to leaks in the gas path in case of improper / defective
installation!
The installation of the gas part is only allowed by an authorized installer. It also takes responsibility for the correct
installation and for the first commissioning.
During the work, the legal provisions will be observed, as well as the local prescriptions of the gas supply
companies.
When installing the gas pipe, make sure that it is not tense, so as not to cause leaks!
Caution!
The maximum safe operating pressure of the gas valve is 60 mbar! Damage may occur by exceeding this pressure.
The natural gas pressure GN at the inlet of the gas valve must be maintained in the range of 20 ÷ 25 mbar!
Caution!
It is mandatory to mount a pressure regulator (with impurity filter) on the fuel supply circuit.
Caution!
If parasitic voltage appears on the gas pipe, it is insulated by installing an electrical insulating part (according to the
Technical Norms for the design and execution of natural gas supply systems).
Boilers of the range C38GC45V1 are adjusted and tested in the factory for operation with GN-G20 natural gas. The gas
connection is made of gas stainless steel pipe with an inner diameter of 16.4 mm. The gas supply line must not have a
diameter smaller than the gas connection of the boiler. Refueling must be done in accordance with the legal regulations in
force.
Caution!
Where the setting for operation on propane-G31 is necessary, this will be carried out by the authorized company at
the time of putting the plant into operation. Defaults due to improper adjustment of the gas valve for G31 propane
operation are not covered by the warranty!

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KÖBER SRL
VADURI BRANCH CONDENSING WALL-MOUNTED BOILERS C38GC45V1
5.3 Connecting the boiler to the heating installation
The boiler is connected to the district heating circuit by the connections B and E (Fig. 5.1).
When designing the district heating circuit, the hydraulic characteristic of the pump that equips this boiler model will be
considered! See chap. 10.3 "Hydraulic characteristic of the pump".
Caution!
The boiler is not equipped with an expansion vessel; its installation and connection must be done by the installer.
The installation of the boiler in an installation without an expansion vessel is not covered by the warranty.
It is recommended to connect the expansion vessel directly to the boiler by connecting to connection D (fig. 5.1),
which is in the lower part of the boiler.
The dimensioning of the expansion vessel is made according to the volume of the heating installation!
Caution! Before connecting the boiler, carry out a thorough washing of the entire heating system! In this way, you
remove debris such as magnetite powder, welding splashes, slag, hemp, putty, rust, coarse dirt or the like.
Otherwise, these substances may deposit in the heat exchanger and may cause malfunctions.
The washing of the installation (new or old) is must be carried out through the service companies authorized and
approved by KOBER SRL once it is put into operation.
The defects appeared in the thermo-hydraulic circuit of the boiler, due to the non-washing of the installation (new or
old) once it is put into operation, are not covered by the commercial warranty.
Indication!
The pH of the water must be within the limits: 7.5 <pH <9.5 and if the installation contains aluminum components, it
must be less than 8.5, The hardness of the water must be within the limits: 5 ° F <TH <15 ° F (5 ° F French degrees, the
equivalent of 50 mg CaCO3 or an equivalent amount of other Ca and Mg salts). Defects in the thermo-hydraulic circuit of the
boiler, due to the high hardness of the water are not covered by the commercial warranty.
Caution!
On the return of the installation, it is mandatory to mount a mechanic (filter Y) of impurities
On the district heating circuit, it is mandatory to install, on the return of the installation, an anti-magnet filter to retain
fine metallic impurities, which normally cannot be retained by the mechanical filter, and which are further entrained inside the
hydraulic circuit of the boiler damaging the thermo-hydraulic components (irreparable damage to the gearbox body,
operating noises, etc.)!
If a magnetic filter is installed, the metal particles will be retained and will no longer be entrained in the boiler body!
The lack of a magnet filter leads to the loss of the commercial warranty!
Caution!
When installing the connection pipes, care must be taken not to strain them, in order to avoid leaks!
The maximum allowable working pressure is 3 bar.
The recommended working pressure is 1.5 bar.
Caution!
The use of the boiler without thermal or partially filled agent is forbidden - danger of explosion;
The use of the boiler without being completely ventilated is forbidden!
5.4 Connecting the boiler to the domestic hot water circuit
The boiler is connected to the domestic hot water installation - through connections C (fig. 5.1.1).
Caution!
It is mandatory to install softener filters and a
mechanical impurity filter on the cold water inlet
connection.
Caution!
The cold water supply connection is only used for
filling the district heating circuit. When the boiler is
operating on district heating, the boiler filling valve must be
closed.
Caution!
When installing the connection pipes, care must be
taken not to strain them, in order to avoid leaks!
The occurrence of pressure shocks (supply pressures higher than
3-4 bar simultaneously with the actuation of the quick-closing
valves) can affect the components of the hydraulic circuit inside
the boiler. We recommend installing a pressure regulator!
Damage to the boiler elements due to pressure shocks or the
use of too much pressure on the cold water inlet circuit is not
covered by the warranty! It is forbidden to install one-way valves
on the cold water supply circuit. The cold water supply pipe of
the domestic hot water preparation circuit will remain
permanently open (the network is closed only through the taps
at the consumption points) to allow the expansion of this circuit to be taken over.
Fig
. 5.1

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KÖBER SRL
VADURI BRANCH CONDENSING WALL-MOUNTED BOILERS C38GC45V1
5.5 Condensate drain pipe connection
Danger!
Danger to life due to flue gas leaks!
The condensate drain pipe from the siphon must not be tightly connected to a sewage pipe, because otherwise the
internal condensate siphon can be emptied by suction and the flue gases can enter the room where the boiler is
installed.
The condensate resulting from the condensation of water vapor contained in the flue gases is discharged from the boiler,
through the condensate drain siphon, which is located at the bottom of the boiler. As this condensation is acidic, having a pH
of about 3.8 ÷ 5.4, the discharge must be made through a plastic pipe (flexible) with an inner diameter of at least Ø25 mm or
more, which is connected at one end to the siphon hose and at the other end to a sewer pipe.
Before commissioning the boiler, approx. 1/2 liter of water through the flue gas connection (fig.5.2), in order to form a "water
plug" in the siphon - thus preventing the flue gas from escaping into the room.
The condensate evacuation route must be continuously
descending (not to present possible areas of condensate
stagnation, especially in the situation when it crosses areas with risk
of frost).
The condensate drainage route must comply with the regulations
in force regarding wastewater.
Recommended condensation removal methods:
The methods are presented below in the order in which they are recommended to be adopted depending on the possibilities
offered by the mounting positions and the existing installation. As much as possible the condensate drain must be made so
that the shortest path and gravitational flow are chosen. If there is a possibility, it is recommended to eliminate the
condensation in the ground through a pipe provided with ventilation (figure 5.4). If this is not possible, the internal sewerage
network can be used (fig. 5.5). Where neither of the first two cases is possible, a condensate pump can be used (Fig.5.6).
KÖBER SRL sells the CONLIFT 1 condensate pump, which can be purchased by the beneficiary from the KÖBER SRL sales
department.
Caution!
In the areas where frost appears, the condensate evacuation is not done outside the building, which will lead to the
blocking of the evacuation route and the flooding of the combustion chamber due to the frost.
Caution!
The absence of water in the siphon causes emanations of the smoke evacuated in the ambient air.
Table 5.1 - Legend of figures 5.4 ÷ 5.6
1. Condensation siphon
2. Ventilation piping
3. Minimum 450 mm and maximum 3 floors of
building
4. Hydraulic closure (swan neck)
5. Condensation pump
Fig. 5.2
Fig. 5.3
Overpressure
valve connection
Condensation evacuation
connection
Fig. 5.4 – Condensation evacuation in ventilated soil Fig. 5.5 – Condensation elimination in sewage
Fig. 5.6
–
Condensation evacuation with
condensation pump

REV 01.08.2022 page 13 of 37
KÖBER SRL
VADURI BRANCH CONDENSING WALL-MOUNTED BOILERS C38GC45V1
5.6 Safety valve connection
Caution!
Danger of scalding!
The discharge valve of the safety valve (fig. 5.3) is connected to a drainpipe to the sewer. Otherwise, there is a risk of flooding,
which is not the responsibility of the boiler manufacturer.
5.7 Air / flue inlet / exhaust pipes
The boiler does not require air intake in the room in which it is installed. The air required for combustion for efficient operation is
recommended to be captured from outside the building. The equipment is delivered for this purpose with a coaxial or dual
flue gas supply / exhaust system called exhaust kit.
The equipment is delivered standard with coaxial exhaust kit. On request, however, it can also be delivered with a dual
exhaust kit. It is also possible to order additional components such as elbows at 45 ° and 90 ° as well as extensions of 0.5m and
1m for both the dual system and the coaxial system.
5.7.1 Use of coaxial condensation kit (plastic inner tube) -fig.5.7
The coaxial intake-exhaust kit, fig.5.7 is delivered together with the boiler. The exhaust is made through a tube with a diameter
of Ø60 mm, coaxial with the air intake tube with a diameter of Ø100 mm.
The connection is made as follows:
a. all the gaskets are mounted in their own places.
b. the end element (13) is fixed on the air / gas intake / exhaust piping.
c. insert the gasket (11) for the interior on the piping.
d. the piping is fixed on the elbow of the kit.
e. glue the self-adhesive gasket (15), fix the elbow of the kit on the upper cover of the pressurized chamber with the
screws (16).
f. mount the gasket (11) for the exterior.
Table 5.2 - Coaxial kit
Pos. Pcs. Name Pos. Pcs. Name
1 1 Air intake plug 9 1 Air intake pipe Ø100mm
2 1 Gas outlet plug 10 1 Centering profile Ø60 - Ø 100mm
3 1 Gas outlet connector 11 2 Masking profile (through hole)
4 1 Flue gas outlet elbow Ø60 mm 12 1 Gasket Ø60mm
5 1 Air intake elbow Ø100 mm 13 1 Plastic terminal Ø60 - Ø 100mm
6 1 Gasket Ø60 mm 14 2 Self-tapping screw 4.2x16 mm
7 1 Gasket Ø100 mm 15 1 Fixing gasket 2mm
8 1 Flue gas exhaust pipe Ø60mm 16 4 Self-tapping screw 4.2x16 mm
Caution!
The kit must have a 3% (approximately 2 °)
ascending slope on the exhaust side for
condensate recovery, the slope is given by the
position of the terminal.
- at the mounting position of the terminal, it must be similar
to the one in figure 5.7. Mounting it in another position can
lead to the accumulation of water from precipitation in the
combustion chamber of the boiler.
Caution!
For easy installation of the kit it is necessary to
lubricate the end of the elbow (4) at the entrance
Fig. 5.7
Slope 3% (approx. 2°)
Fig. 5.8
Fixing screws
Coaxial kit
Kit gasket
Exchanger gasket
Exchanger inlet pipe
end lubrication

REV 01.08.2022 page 14 of 37
KÖBER SRL
VADURI BRANCH CONDENSING WALL-MOUNTED BOILERS C38GC45V1
to the boiler, use only standard commercial soap or water. Lubrication is required to prevent the exhaust gasket from moving
on the main heat exchanger (fig. 5.8).
Never use lubricant based on mineral oils, they can damage the seals.
When installing the kit, make sure that the edges of the inlet pipe to the boiler are chamfered.
Caution!
It is mandatory to place the boilers in premises that have ventilation according to the norms in force. The technical
instructions will be studied before mounting / installation, commissioning or service intervention.
For each additional elbow used, the maximum length of the intake / exhaust pipes is reduced (90 ° - 1m elbow, 45 ° -
0.5 m elbow).
In no case will the total length of the coaxial kit, even with extensions, exceed the equivalent of 3 m (without the first elbow).
Danger!
It is forbidden to operate the boiler without air / gas intake / exhaust pipes, due to the fact that it endangers the life
and health of people.
Risk of death by escaping flue gases.
Make sure that all measuring sockets on the exhaust kit are always closed.
The replacement will be made only by authorized personnel in accordance with the legislation in force, using original parts
provided by the manufacturer.
5.7.2 Use of dual kit
The dual kit, fig. 5.9 is delivered only on request. The dual kit consists of two ducts: one for air intake and one for exhaust gases
of the same diameter, Ø80mm, two 90-degree elbows and the corresponding gaskets.
The connection is made as follows (see figure no. 5.9):
- the gaskets pos. 1 and 10 are glued on the connectors pos. 2 and 9;
- fix the connectors, positions 2 and 9 on the upper part of the pressurization chamber with 4 screws each, position 3;
- position the masking profiles on the piping;
- the intake / exhaust pipes are fixed in connectors.
Table 5.3 - Dual kit
Pos. Pcs. Name Pos. Pcs. Name
1 1 Gasket 6 1 Exhaust pipe Ø 80 mm
2 1 Exhaust connector Ø 80 mm 7 4 Passage hole masking profile
3 8 Self-tapping screw Ø 3.9x9.5 mm 8 1 Air intake pipe Ø 80 mm
4 4 Gasket Ø 80 mm 9 1 Inlet connector Ø 80 mm
5 2 Elbow at 90 ° MF Ø 80 mm 10 1 Gasket
The dual kit will be mounted with the intake pipe with a downward slope of 3% (approximately 2 °) and the exhaust
pipe with an ascending slope of 3% (approximately 2 °). It is mandatory to place the thermal boilers in premises that
have ventilation according to the norms in force. The technical instructions will be studied before mounting /
installation, commissioning or service intervention. For each additional elbow used, the maximum length of the intake /
exhaust pipes is reduced (90 ° - 1m elbow, 45 ° - 0.5 m elbow). In no case will the total length of the dual kit, even with
extensions, exceed the equivalent of 5 m (without the first elbow).
Caution!
For easy installation of the kit it is necessary to lubricate the end of the connector (2) at the inlet part of the boiler, use
only standard commercial water or soap. Lubrication is required to prevent the exhaust gasket from moving on the
main heat exchanger.
Never use lubricant based on mineral oils, they can damage the seals.
When installing the kit, make sure that the edges of the inlet pipe to the boiler are chamfered.
Danger!
It is forbidden to operate the boiler without air / gas intake / exhaust pipes, due to the fact that it endangers the life
and health of people.
The replacement will be made only by authorized personnel in accordance with the legislation in force, using
Fig. 5.9

REV 01.08.2022 page 15 of 37
KÖBER SRL
VADURI BRANCH CONDENSING WALL-MOUNTED BOILERS C38GC45V1
original parts provided by the manufacturer.
5.7.3 Use of vertical coaxial kit
The vertical coaxial kit, fig. 5.10 is delivered only on request. The exhaust is made through a tube with a diameter of Ø60 mm,
coaxial with the air intake tube with a diameter of Ø100 mm. The connection is made as follows:
- all the gaskets are mounted in their own places;
- fix the intake tube (10) on the upper cover of the pressurization chamber with 4 screws, taking care that between the cover
and the elbow kit to position the afferent gasket;
- it is fixed on the intake / exhaust pipes, taking care to position the afferent gaskets. Install the roof mounting kit (4).
Caution!
It is mandatory to place the thermal boilers in premises that have
ventilation according to the norms in force. The technical instructions will
be studied before mounting / installation, commissioning or service
intervention.
In no case will the total length of the vertical coaxial kit, even with extensions, exceed
the equivalent of 5 m.
Caution!
For easy installation of the kit it is necessary to lubricate the end of the
exhaust pipe (6) at the inlet part of the boiler, use only standard
commercial water or commercial soap. Lubrication is required to prevent the exhaust
gasket from moving on the main heat exchanger.
Never use lubricant based on mineral oils, they can damage the seals.
When installing the kit, make sure that the edges of the inlet pipe to the boiler are
chamfered.
Danger!
It is forbidden to operate the boiler without air / gas intake / exhaust
pipes, due to the fact that it endangers the life and health of people. The
replacement will be made only by authorized personnel in accordance
with the legislation in force, using original parts provided by the manufacturer.
5.8 Connection to the electrical network
Danger!
Danger to life due to electric shock to electrical contacts!
The boiler must be connected to a single-phase network, provided with earthing, to ensure a stable voltage of 230 VAC +10%
/ - 15%, frequency 50 Hz, respecting the Phase-Zero polarity.
In order to ensure in operation a stable voltage of 230 Vac + 10% / - 15%, it is mandatory to install a SUPERVENTION FILTER type
KLSP-03A brand KÖBER SRL. Any defect due to an overvoltage outside the range 230 Vac + 10% / - 15%, on installations where
the OVERVOLTAGE PROTECTION FILTER type KLSP-03A brand KÖBER SRL has not been installed, is not covered by the warranty!
The leakage resistance of the earthing (earthing) must be in accordance with the regulations in force (maximum 4 ohms, and
the working NUL must not have residual currents). It is recommended to supply the boiler from a separate circuit provided with
fuses with 30mA differential protection. External connections must comply with current regulations. The connection to the
electrical network of the building must allow complete electrical insulation of the boiler for the situations when an intervention
is necessary for it.
The connection to the network is made by means of a plug mounted at the end of the 3x0.75 blue / brown / yellow-green
three-wire cable, 2m, tight in bundles in the area of the boiler hydraulic group taking into account the color semantics as
follows: Brown = phase, Blue = null, Green and yellow = grounding.
The power outlet must be accessible so that the user can easily remove the connector.
An electrical outlet for connecting a thermal boiler is compliant if:
a) L = phase; N = null; G = grounding
b) The voltage measured with the voltmeter on alternating current is: LN ~ LG = 230 Vac +/- 10%
c) The voltage measured with the voltmeter is:
-for alternating current: NG ˂ 10 Vac;
-for direct current: NG = 0 Vdc
d) Resistance measured between zero work and grounding: NG ˂ 0.4 Ω
Caution!
It is not allowed to dredge the boiler in an installation without earthing or with faulty earthing.
Positio
PIECE
Name.5.
1
1
Flue gas exhaust pipe Ø 60 mm
2
1
Centering profile Ø 60/100 mm
3
1
Air intake pipe Ø 100 mm
4
1
Roof mounting kit Ø 60
/100 mm
5
2
Gasket Ø 60 mm
6
1
Gas exhaust pipe Ø 60 mm
7
1
Gas
ket Ø 100 mm
8
1
Air intake pipe Ø 100 mm
9
1
Central fixing gasket Ø 100 mm
10
4
Self
-
drilling screw 4.2 x 16 mm
11
1
Flue gas outlet plug
12
1
Flue gas socket connector
Fig. 5.10

REV 01.08.2022 page 16 of 37
KÖBER SRL
VADURI BRANCH CONDENSING WALL-MOUNTED BOILERS C38GC45V1
5.8.1 Connecting an ambient thermostat or outdoor sensor
The procedure of coupling an ambient thermostat or an external sensor to the boiler can be done EXCLUSIVELY by the
authorized personnel of the partner service companies approved by KÖBER SRL Vaduri Branch.
Mounting an outdoor sensor is only useful in the presence of an ambient thermostat.
It is recommended to use the KÖBER brand outdoor sensor, type KST-E-N10.
Technical specifications:
Model: KST-E-N10
Rated voltage: max. 5 Vdc
Maximum rated current: 18 mA
Resistance to 25 ° C (R25): 10kΩ ± 5%
Constant β25 / 100: 3977 / 3988k ± 1%
Temperature range: -35 ° C .... + 115 ° C
By using a temperature sensor, the "climate compensation" function can be activated.
If the "climate compensation" function has been activated, then the temperature of the thermal agent is adjusted according
to the climatic conditions outside, ensuring a high comfort and an energy saving.
Thus, if the outside temperature increases, the temperature of the heating medium decreases according to a "compensation
curve" (fig.5.11).
CAUTION!
The maximum limit that the boiler will reach when heating must be set from the user interface (maximum desired
temperature on the heating circuit)!
Recommendation: - Circuit CH radiators Tset = 80 ° C;
- Circuit CH floor Tset = 45 ° C.
Table 1 - Use of external sensor on the CH radiator circuit.
SP05 3 6 8 10 RECOMANDED SET 12 15 18 21 24 27 30 33
T °C
exterioara
T °C tur incalzire
obtinuta doar daca temperatura pe incalzire este setata din interfata utilizator (Tset
CH=80°C)
20
30
30
30
30
30
30
30
30
30
30
30
30
18
31
31
32
32
32
33
34
34
35
35
36
37
16
31
32
33
34
35
36
37
38
40
41
42
43
14 32 34 35 36 37 39 41 43 44 46 48 50
12
32
35
36
38
40
42
44
47
49
52
54
56
10
33
36
38
40
42
45
48
51
54
57
60
63
8
3
4
37
40
42
44
48
52
55
59
62
6
6
70
6
34
38
41
44
47
51
55
59
64
68
72
76
4
35
40
43
46
49
54
59
64
68
73
78
80
2
35
41
44
48
52
57
62
68
73
79
80
80
0
36
42
46
50
54
60
66
72
78
80
80
80
-2 37 43 48 52 56 63 70 76 80 80 80 80
-
4
3
7
44
49
54
59
6
6
73
80
80
80
80
80
-
6
38
46
51
56
61
69
77
80
80
80
80
80
-
8
38
47
52
58
64
72
80
80
80
80
80
80
-
10
39
48
54
60
66
75
80
80
80
80
80
80
-
12
40
49
56
62
68
78
80
80
80
80
80
80
-
14
40
50
57
64
71
80
80
80
80
80
80
80
-16 41 52 59 66 73 80 80 80 80 80 80 80
-
18
41
53
60
68
76
80
80
8
0
80
80
80
80
-
20
42
54
62
70
78
80
80
80
80
80
80
80
-
22
43
55
64
72
80
80
80
80
80
80
80
80
-
24
43
56
65
74
80
80
80
80
80
80
80
80
-
25
44
57
66
75
80
80
80
80
80
80
80
80
-
28
44
59
68
78
80
80
80
80
80
80
80
80
-
30
4
5
60
70
80
80
80
80
80
80
80
80
80
Table 2 - Use of external sensor on the CH floor circuit.
SP05 1 5 10 RECOMANDED SET 15 20 25 30 33
T °C
exterioara
T °C tur incalzire obtinuta doar daca temperatura pe incalzire este setata din int
erfata
utilizator (Tset CH=45°C)
10
16
20
25
30
35
40
45
45
0
17
25
35
45
45
45
45
45
-
10
18
30
45
45
45
45
45
45
-19 18 34 45 45 45 45 45 45

REV 01.08.2022 page 17 of 37
KÖBER SRL
VADURI BRANCH CONDENSING WALL-MOUNTED BOILERS C38GC45V1
For example (the graph next to Fig. 5.14):
- if desired a maximum of 70 ° C for the CH in the
interface of the user (red line on the graph) this can
only be achieved if SP 05> 6, for external
temperatures of maximum -30 ° C (SP05 = 6 column
of the table).
5.8.2 Connecting the sensor to the external boiler
The procedure for coupling the external boiler sensor to the boiler is made EXCLUSIVELY by the authorized personnel of the
partner service companies approved by KÖBER SRL Sucursala Vaduri.
The sensor on the external boiler must be of the type:
Resistance to 25 ° C (R25): 10kΩ ± 5%
Constant β25 / 100: 3988k ± 1%
5.8.3 Connecting the 3-way valve
The procedure for coupling the 3-way valve to the boiler is made EXCLUSIVELY by the authorized personnel of the partner
service companies approved by KÖBER SRL Vaduri Branch.
Switching the three-way valve is done from the control panel by pressing the J1 key ( ).
5.9 Filling and emptying the installation
Caution!
The heating system must be washed before filling;
Do not use antifreeze or corrosive agents as an additive for heating water! The company KÖBER SRL – VADURI
BRANCH does not assume responsibility for the damages caused by this.
Caution!
The filling of the installation is done only with the fuel valve closed.
Danger of explosion when starting the boiler.
When the boiler is switched on, the welcome message “OFF and0.0bar ” immediately followed by the entry of the boiler in
error E88 ( ).
This will indicate the need to perform the PIF (Commissioning) operation by one of the service companies authorized
according to the legislation in force and approved by us KÖBER SRL. For this, contact one of the partner companies within your
domicile, indicated in the list inside the Warranty Certificate.
To perform the pressure tests by the installer, it is available to display the pressure on the analog pressure gauge mounted
under the boiler.
Caution!
In order to grant the warranty, the removal of the boiler from error status E88 is allowed only to the personnel
authorized and approved by KÖBER SRL.
To fill the installation, the following operations are performed:
To fill the installation, the following operations are performed:
1. the filling valve (fig. 5.13) of the boiler and those of the district heating / domestic water installation are opened;
2. the boiler is charged with a pressure around 0.8 bar, indicated on an analog manometer mounted at the bottom of
the boiler ("below the boiler");
3. the pump aerator is opened;
4. the boiler is supplied with electricity, and the boiler will automatically initiate the "self-ventilation" function on CH for
450 seconds if no key is pressed as follows: 30 seconds (pump ON), followed by 20 seconds pump OFF. The cycle is
repeated 9 times;
5. after performing the 450 second ventilation cycle, the tightness of the entire system is checked (if there are leaks, the
problems are remedied);

REV 01.08.2022 page 18 of 37
KÖBER SRL
VADURI BRANCH CONDENSING WALL-MOUNTED BOILERS C38GC45V1
6. the ventilation of the boiler is continued by manually activating the ventilation module, for activation long press the J1
key ( )and the pump will start, the boiler being in the OFF (Stand-by) state, for deactivation press the J1 key ( )or by
starting the boiler from the J5 key - (POWER);
7. the pump operating stage is adjusted according to the installation (see chap. 7.11);
8. the filling of the installation is continued, with the ventilation function turned up to 1.1-1.5 bar;
9. the tightness of the entire system is checked. If there are losses, the problems are remedied;
10. the radiators are ventilated;
11. 2-3 ventilation cycles of 50-60 seconds are performed until noises are heard in the installation, according to the steps
described above;
12. check the pressure in the installation indicated on the display / manometer. If necessary, fill it with thermal agent,
following the steps above.
* the figure is informative, the equipment of the purchased boiler may differ.
Caution!
Check the correct operation of the pump with non-fueled boiler.
Operation of the boiler with the pump blocked can lead to melting of the
venturi tube, error or damage to the main boiler derailleur.
The operating condition of the pump is MANDATORY checked when starting up, with
the front cover of the boiler removed, by checking the indication of the pump LEDs and
activating the VENTILATION function.
If the VENTILATION function cannot be executed "LOCKED PUMP", then it is necessary to
unblock the pump as follows (fig. 5.14):
- with the help of a straight-head screwdriver (6x1), remove the rotor screw, then
unlock the rotor by turning left, right with a crosshead screwdriver (PH2).
After unlocking the pump rotor, continue with the correct ventilation of the installation,
by performing the steps described above.
Indication!
Rules to reduce the risk of pump blockage:
1. When installing - Operate the pump min. ½ hours in maximum constant setting of
the curve, to ensure that the rotor container is filled with water.
2. When commissioning - Make sure that the pump is operational for at least 30
minutes. every week or works continuously (until the heating system is fully put into
operation, e.g. during construction)
3. Normal operation - During the summer, it is strongly recommended that the pump run for a period of time each week.
Caution!
Improper ventilation of the system can lead to melting of the venturi tube, error or irreparable damage to the main
exchanger of the boiler.
Caution!
Switching on the boiler with air in the installation leads to irreparable damage to the main heat exchanger and the
recovery exchanger (see fig. 5.12).
Failure to properly ventilate the installation will void the warranty.
Indication!
The recommended pressure on the district heating circuit is 1 ÷ 1.5 bar.
Emptying the boiler
Emptying the boiler involves the following:
- switch off the boiler from the J5 key - (POWER)and disconnect the power supply, turn off the gas valve;
- close the tap on the district heating and cold water inlet;
- open the DHW valve (fig.5.13) and a DHW consumption point.
Caution!
Danger of scalding when emptying the boiler.
Fig.5.12
Fig.5.13
OPEN
Pressure gauge Filling tap
Fig.5.14

REV 01.08.2022 page 19 of 37
KÖBER SRL
VADURI BRANCH CONDENSING WALL HEATING POWER PLANT C38GC45V1
6 OPERATING INSTRUCTIONS - USER INTERFACE
6.1
Control panel
type LMC201
The LM201 control panel (fig.6.1) allows the visualization and modification of the parameters that define the operation of the
boiler.
Is made of:
-
8 touch keys (J1 ÷ J8) - tab.6.1
-
LCD type display, where the messages (graphic symbols) of communication with the control panel are displayed:
The meaning of the symbols and the display of the digits is presented in tab. 6.2.
Table 6.1: Control panel keys
Key Annotation Description:
J1
Switching operation in winter / summer; Activates / deactivates the central ventilation function
(long press in standby mode)
J2
Resetting the electronic board from an error state; exit the installation menu
J3
Increase the temperature set in winter mode; navigation through the installation menu;
increment value current parameter installation menu
J4
Decrease the temperature set in winter mode; navigation through the installation menu;
decrement value current parameter installation menu
J5
POWER - Boiler start / stop
J6
Activating the comfort function
J7
Increase the temperature set in summer mode; navigation through the installation menu;
increment value current parameter installation menu
J8
Decrement the temperature set in summer mode; navigation through the installation menu;
decrement value current parameter installation menu
Fig. 6.1 Control pane
l LMC201

REV 01.08.2022 page 20 of 37
KÖBER SRL
VADURI BRANCH CONDENSING WALL HEATING POWER PLANT C38GC45V1
Table 6.2: Description of graphic symbols in the LCD display area
Key Annotation Description:
S1
Indicates whether the set operating mode is WINTER - active symbol
S2 Indicates the status of the "Vacation" function - active / inactive
S3
Indicates whether the DHW production mode is by boiler - active symbol
S4 Indicates the status of the "Antifreeze" function - active / inactive
S5
Indicates the status of the boiler (OFF = active symbol, ON = inactive symbol)
S6
Indicates that there was an unsaved change in th
e parameters in the EEPROM memo
ry
(flashes - in the SERVICE submenu); indicates the need to perform VTP (periodic technical
check) (symbol flashes)
S7 Indicates the status of the "Comfort" Function - active / inactive
S8
Indicates serial communication status (RS232 with computer) - active / inactive
S9
Indicates whether the set operating mode is SUMMER - (active symbol)
S10
Displays the presence of the flame
S11 Indicates the operation of the boiler in DHW mode, flashes (DHW production)
S12
Indicates the operation of the boiler in AT mode, flashes (district heating)
S13
Indicates the modulation stage
S14
"HOME" symbol
-
active in the presence of the outdoor sensor connected to the control
panel
D1
Displays temperature (° C), parameter values
D2 Displays temperature (° C), parameter index, error counter
D3 Displays the pressure in ex format. 1.5 bar, other texts ("On", "OFF", "HELLO" etc.)
D4
Displays outdoor temperature (° C) - active in the presence of the outdoor sensor
D5
Displays indoor temperatur
e (° C)
-
active in
the presence of indoor temperature sensor
-
in
correlation with the S14 symbol
6.2
Description of functions and
graphical contexts displayed by LMC1X control panel
6.2.1 Graphic context - Display error E88
When the boiler is switched on, the welcome message “OFF and0.0bar ” immediately followed by the entry of the boiler in
error E88 ( ).
Fig. 6.2 Control panel LMC202 display