Kober Motan BP120L V1 User manual

rev. 02.04.2020 © KÖBER SRL VADURI BRANCH
KÖBER S.R.L.
VADURI BRANCH
INSTALLATION AND USE MANUAL
NAME OF APPARATUS / EQUIPMENT
DOMESTIC HOT WATER STORAGE TANK
Edition: 1
Revision: 3
Date: 27/07/2022
Form code F-POV-05-07
Page: 1 of 20
KÖBER S.R.L. Dumbrava Rosie
Vaduri Branch
DOMESTIC HOT WATER STORAGE TANK
TYPE BP120L_V1
INSTALLATION AND SERVICE TECHNICAL MANUAL
Vaduri, Zorelelor Street no.25, Alexandru Cel Bun Commune, Neamt 617511,
Romania, Tel.: [phone], Fax:[phone]
www.motan.ro

rev. 02.04.2020 © KÖBER SRL VADURI BRANCH
KÖBER S.R.L.
VADURI BRANCH
INSTALLATION AND USE MANUAL
NAME OF APPARATUS / EQUIPMENT
DOMESTIC HOT WATER STORAGE TANK
Edition: 1
Revision: 3
Date: 27/07/2022
Form code F-POV-05-07
Page: 2 of 20
Dear Client:
We congratulate you on your decision to use our product.
The MOTAN brand has been on the market since 2002, offering you quality and performance at a reasonable price. We
hope you will be completely satisfied with this product.
This product was built using high quality components, the highest class technologies, ensuring the product a modern design
and high reliability.
This document comes to your support with complete information related to the use and installation of the boiler.
Please read this manual carefully and keep it for future reference.
Manufacturer: KÖBER SRL Dumbrava Rosie Vaduri Branch
The boilers manufactured by KÖBER S.R.L. DUMBRAVA ROSIE VADURI BRANCH bear the marking of EC conformity.
In this way we guarantee the conformity of the products we offer. The quality of our products is the result of permanent
investment in the implementation of the latest technology in research and development, as well as of our professionalism,
experience and the dedication of our employees.
Please read the information contained in this manual carefully before you use the boiler.
The manual must be kept and be available at every moment.
This manual is the property of KÖBER S.R.L. DUMBRAVA ROSIE VADURI BRANCH. Its copying or reproduction is forbidden
without the written consent of KÖBER S.R.L. DUMBRAVA ROSIE VADURI BRANCH.
COMMERCIAL NAME DESCRIPTION TYPE
BOILER B120L
Monovalent storage tank (with internal coil and electric heater) for domestic
hot water
BP120L V1

rev. 02.04.2020 © KÖBER SRL VADURI BRANCH
KÖBER S.R.L.
VADURI BRANCH
INSTALLATION AND USE MANUAL
NAME OF APPARATUS / EQUIPMENT
DOMESTIC HOT WATER STORAGE TANK
Edition: 1
Revision: 3
Date: 27/07/2022
Form code F-POV-05-07
Page: 3 of 20
CONTENT
1GENERAL.............................................................................................................................................................. 4
1.1 Applicable standards and directives....................................................................................................................................4
2GENERAL PRESENTATION OF THE PRODUCT....................................................................................................... 4
2.1 Use according to specifications............................................................................................................................................4
2.2 Advantages............................................................................................................................................................................4
2.3 Components...........................................................................................................................................................................4
2.4 Technical data........................................................................................................................................................................5
2.4.1 Dimensional and constructive characteristics.....................................................................................................................5
2.4.2 Functional characteristics......................................................................................................................................................6
2.5 Design indications...................................................................................................................................................................7
2.5.1 Boiler principle diagram.........................................................................................................................................................7
2.5.2 Boiler operational modes.......................................................................................................................................................7
2.6 Boiler equiped with Mixing valve kit......................................................................................................................................8
3INSTALLATION INSTRUCTION............................................................................................................................... 9
3.1 Transport to the mounting place...........................................................................................................................................9
3.2 Installation.............................................................................................................................................................................10
3.2.1 Wall mounting.......................................................................................................................................................................10
3.2.2 Boiler connection .................................................................................................................................................................10
3.2.3 Filling the boiler with water ..................................................................................................................................................13
3.2.4 Emptying the boiler ..............................................................................................................................................................13
3.2.5 Electrical diagram................................................................................................................................................................14
4USE INSTRUCTIONS............................................................................................................................................. 15
4.1 Boiler startup..........................................................................................................................................................................15
4.2 Indications regarding boiler decommissioning..................................................................................................................16
5MAINTENANCE .................................................................................................................................................. 16
5.1 Boiler cleaning ......................................................................................................................................................................16
5.2 Anode checking...................................................................................................................... Error! Bookmark not defined.
5.3 Replacing the anode.............................................................................................................. Error! Bookmark not defined.
5.4 Checking heater ..................................................................................................................................................................17
5.5 Checking the hydraulic safety group.................................................................................................................................17
5.6 External cleaning..................................................................................................................................................................17
6DISPOSING OF OLD ELECTRICAL AND ELECTRONIC APPLIANCES (DIRECTIVE 2002/96/EC –DEEE)............ 17
7SPARE PARTS ...................................................................................................................................................... 18
8RECORDS OF INTERVENTIONS........................................................................................................................... 20

rev. 02.04.2020 © KÖBER SRL VADURI BRANCH
KÖBER S.R.L.
VADURI BRANCH
INSTALLATION AND USE MANUAL
NAME OF APPARATUS / EQUIPMENT
DOMESTIC HOT WATER STORAGE TANK
Edition: 1
Revision: 3
Date: 27/07/2022
Form code F-POV-05-07
Page: 4 of 20
1GENERAL
1.1 Applicable standards and directives
- SR EN 60335-1 "Safety of household and similar electrical appliances. Part 1: General prescriptions";
- SR EN 60335-2-21 " Household and similar electrical appliances. Safety. Part 2-21:
Particular prescriptions for water heaters with storage facilities";
- SR EN 625 "Central heating boilers using gaseous fuels. Specific conditions for the hot domestic water function of boilers with
two services, with rated caloric capacity lower or equal to 70 kW";
- EN 305: Heating switches – Definitions of heating switches performances and general procedure to determine heating
switches performances;
- SR EN 306 Heating switches – methods to measure parameters necessary for performance evaluation;
- SR EN 247 – Heating switches – terminology;
- SR EN 307 – Heating switches – regulations for the drafting of installation, operation and maintenance instructions ,
necessary for the maintenance of all heating switches performances.
2GENERAL PRESENTATION OF THE PRODUCT
2.1 Use according to specifications
The hot water boiler BP120L_V1, is designed for the preparation and stocking of hot domestic water hygienically, comfortably
and economically using the energy from solar collectors or from gas boiler and/ or electric heater.
The magnesium anode represents an additional protection for water quality and ensures the product a long life, as long as it is
replaced annually.
Attention!
During the warranty period, annual maintenance and replacement of the magnesium anode is mandatory. The
annual maintenance and replacement of the magnesium anode is done at the end user's expense.
Failure to carry out the annual maintenance and replacement of the magnesium anode leads to the loss of the commercial
warranty.
Failure to submit intervention reports for the annual replacement of the magnesium anode entails the loss of the commercial
warranty.
The boiler is designed to operate only in VERTICAL position.
2.2 Advantages
- Long term operation due to the stainless steel construction that observes the norms of food hygiene;
- Heating of a large volume of water due to the heating switch surfaces that reach the bottom of the boiler;
- Reduced heat losses due to thermo-insulation;
- It can be used for the bivalent preparation of hot domestic water, a combination between storage tank and electric
heater.
2.3 Components
The main constructive elements are presented in figure no.1:
A – heater operation indicator lamp
B – adjustable thermostat 0 - 60 0C - heater
command
C - ON/OFF button for heater command
D - adjustable thermostat 0-60°C – three way
valve/ pump command
E – anode assembly – (integrated airier)
F – temperature sensor casing – stainless steel
casing (DIN 1.4301; EN X5CrNi18-10; AISI/SAE
304) – for the mounting of temperature sensor
with maximum 8mm in diameter;
G – thermometer 0-120oC;
H – thermo-insulation (PU foam);
I – exterior jacket made of sponge foil covered in
ecological leather.
J – c o i l corrugated casing DN 20 (3/4'') open
pitched (DIN 1.4404; EN X2CrNiMo 17.12.2;
AISI/SAE 316) - L unfolded = 12m;
K – electric heater 2000W cu incorporated
thermostat;
L – boiler body made of stainless steel
(DIN 1.4404; EN X2CrNiMo 17.12.2; AISI/SAE 316);
M – boiler emptying plug
N – general feeding connector
O - connector V3C / pomp
P – side fixing support
Fig. 1

rev. 02.04.2020 © KÖBER SRL VADURI BRANCH
KÖBER S.R.L.
VADURI BRANCH
INSTALLATION AND USE MANUAL
NAME OF APPARATUS / EQUIPMENT
DOMESTIC HOT WATER STORAGE TANK
Edition: 1
Revision: 3
Date: 27/07/2022
Form code F-POV-05-07
Page: 5 of 20
Figure 2
2.4 Technical data
2.4.1 Dimensional and constructive characteristics
Table 1 presents the technical specifications for the boiler.
Figure 2 and table 2 show the main dimensions and connections.
Table 1
Boiler capacity
liters
120
Thermo-insulation
PU foam
Dimensions:
- length
mm
541
- width
mm
551
- height
mm
1177
Total weight
kg
~ 50
Thermal agent capacity
litri
3.5
Change heat surface
m
2
1,92
Connections:
- coil, thermal agent flow connection
interior screw thread
G3/4”
- coil, thermal agent return connection
interior screw thread
G3/4”
- cold water input, hot water output
interior screw thread
G3/4”
- electrical heater
interior screw thread
G1,1/4”
Table 2
A
Anode connection
RE
Resistance mounting
connection
AC
Hot water output
connection
AR
Cold water input
connection
TI
Thermal agent
input connection
G
Total emptying
connection
RI
Thermal agent
output
connection
ST
Temperature sensor
mounting jacket

rev. 02.04.2020 © KÖBER SRL VADURI BRANCH
KÖBER S.R.L.
VADURI BRANCH
INSTALLATION AND USE MANUAL
NAME OF APPARATUS / EQUIPMENT
DOMESTIC HOT WATER STORAGE TANK
Edition: 1
Revision: 3
Date: 27/07/2022
Form code F-POV-05-07
Page: 6 of 20
2.4.2 Functional characteristics
Boiler BP120L is recommended for the following installations:
- Maximum temperature HDW - 60ºC
- Maximum temperature thermal agent on the primary circuit - 80ºC
- Working pressure on the HDW circuit – recommended 6 bar
- Testing pressure on the HDW circuit – 6-7 bar
1. Regime power – is the power obtained with the heating of hot domestic water at a temperature of 12ºC, at various
discharges, using a thermal agent with a discharge of 0.78 m3/h at the temperature of 80ºC. If other input data is used,
other values of the regime power will be obtained.
o Coil use – table 3
- Average warming time at Dt = 65ºC – 28 minutes
oUsing boiler only with electrical heater
- boiler performance when used together with the electrical heater are presented in Figure 3.
2. Heat losses in Stand-by – 50.5W/24h, according to SR EN15502-1-2012.
Table 3
Tthermal agent
(°C) - input Tthermal agent (°C) - return
Q
thermal
agent
(l/min)
Q
DHW (l/min)
T DHW (°C) Pboiler (kw)
80
44.5
13
10
58.3
31.15
42.8
12
52.8
33.16
42
13
50.6
33.7
40.8
14
47.8
34.5
39.6
15
45
34.4
39.6
16
43.6
34.6
40.1
17
43.2
34.9
38.5
18
40.2
35.2
37.8
20
37.6
35.4
36.6
22
35.4
35.7
35.4
26
32.1
35.7
Figura 3

rev. 02.04.2020 © KÖBER SRL VADURI BRANCH
KÖBER S.R.L.
VADURI BRANCH
INSTALLATION AND USE MANUAL
NAME OF APPARATUS / EQUIPMENT
DOMESTIC HOT WATER STORAGE TANK
Edition: 1
Revision: 3
Date: 27/07/2022
Form code F-POV-05-07
Page: 7 of 20
3. Using boiler together with electrical heater.
Boiler startup when boiler is not full causes damage to the electrical heater.
It is recommended to install the electrical heater only in water with low hardness or average hardness up to 14°dH.
If the water has a hardness higher than de 20°TH (1°TH = French degree = 10mg CaCO3) it is recommended to have a
softener installed in order to prevent a calcareous crust from forming inside the boiler.
Boiler performance when used together with the electrical heater are presented in table 4.
2.5 Design indications
2.5.1 Boiler principle diagram
– figure 4, table 5
Figure 4
2.5.2 Boiler operational modes
- for operation by connection to a gas boiler / solar panel. In this
case, the boiler is equipped with the following components:
- Boiler body made of stainless steel sheet (DIN 1.4404; EN X2CrNiMo
17.12.2; AISI/SAE 316);
- coil (heat switch) – corrugated pipe DN 20 (3/4'') open pitched (DIN 1.4404; EN X2CrNiMo 17.12.2; AISI/SAE 316);
- automation panel: thermostat 0-600C for the control of the 3 way valve or of the recirculation pump mounted on the outside;
- thermometer to visualize water temperature inside the boiler;
- thermo-insulation (PU foam);
- integrated anode – airier assembly;
- total emptying plug.
- for operation by connection to central heating station/ solar panel and electrical heater. In this case, the boiler is equipped
with the following components:
- Boiler body made of stainless steel sheet (DIN 1.4404; EN X2CrNiMo 17.12.2; AISI/SAE 316);
- coil (heat switch) – corrugated pipe DN 20 (3/4'') open pitched (DIN 1.4404 ; EN X2CrNiMo 17.12.2 ; AISI/SAE 316);
- electrical heater 2 kW;
- automation panel: thermostat 0-60 °C for the control of the 3 way valve or of the recirculation pump mounted on the
outside;
thermostat 0-60°C for the control of the electrical heater;
ON/OFF button;
electrical heater operation signaling LED;
- thermometer to visualize water temperature inside the boiler;
- thermo-insulation (PU foam);
- integrated anode – airier assembly;
- total emptying plug.
- for operation only with electrical heater. In this case, the boiler is equipped with the following components:
- Boiler body made of stainless steel sheet (DIN 1.4404; EN X2CrNiMo 17.12.2; AISI/SAE 316);
- electrical heater 2kW;
- electrical heater: thermostat 0-60°C for the control of the electrical heater;
ON/OFF button;
electrical heater operation signaling LED;
Table 4
Rated power in normal regime operation - kW
2
Capacity to be heated at a difference in temperature of 50ºC - liters
80
Heating time from 19ºC to 60 ºC – minutes
230
Protection type
IP 41
Table 5
Pos. Name Equipment
1
Hot water return connection
Standard
2 Thermal agent flow connection
Optional,
depending on
the type
3 Thermal agent return connection
4 Cold water flow connection Standard
5 Anode – airier assembly Standard
6 Temperature sensor jacket Standard
7 Immersed electrical heater
Optional,
depending on
the type
8 Total emptying connection Standard

rev. 02.04.2020 © KÖBER SRL VADURI BRANCH
KÖBER S.R.L.
VADURI BRANCH
INSTALLATION AND USE MANUAL
NAME OF APPARATUS / EQUIPMENT
DOMESTIC HOT WATER STORAGE TANK
Edition: 1
Revision: 3
Date: 27/07/2022
Form code F-POV-05-07
Page: 8 of 20
- thermometer to visualize water temperature inside the boiler;
- thermo-insulation (PU foam);
- integrated anode – airier assembly;
- total emptying plug.
2.6 Boiler equiped with Mixing valve kit
Description:
This valve is specially designed for this application. Thermostat mixing
valve ensures high thermal performance and is able to precisely
control the temperature of the water mixture supplied in case of
variations in pressure, temperature or flow.
Anti-scalding function:
As a safety device, in case of a sudden failure of the cold water
supply at the entrance, the valve immediately closes the flow of hot
water. This prevents dangerous burns.
This performance is also guaranteed if there is a temperature
difference of at least 10 °C between the hot water and the mixed
outlet water. Also, in the event of failure of the boiler's hot water
supply, the valve closes the mixed outlet to prevent dangerous
thermal shocks (performing in accordance with UK specifications,
NHS D08 and BS 7942:2000 standard).
The mixing valve is certified according to EN1111 and EN1287
standards.
Tabel nr. 2 – Tehnical specification of mixing valve
Water outlet temperature - range
30-50°C
Precision
± 2°C
Maximum working pressure (static)
10 bar
Maximum working pressure (dynamic)
5 bar
Maximum inlet temperature
85°C
Maximum inlet pressure ratio
6:1
Minimum temperature difference between
hot water inlet and mixed water outlet to
ensure anti-rust
10 °C
Minimum flow for optimum performance
4 l/min
Legionella bacteria and the risk of scalding
In installations that produce domestic hot water with storage, to prevent the dangerous infection known as Legionella disease,
hot water must be stored at a temperature of at least 60°C. At this temperature, it is certain that the growth of the bacteria
that causes this infection will be completely prevented, but still it cannot be used directly by the consumer.
Temperatures above 48 ° C cause burns very quickly.
The mixing valve protects the user against burning exposed skin, limiting the temperature of the domestic water to
approx. 48 °C.
For example, at 55 ° C the partial burn will occur in approx. 30 seconds, while at 60 ° C the partial burn appears in approx. 5
seconds. For children and the elderly, these values are halved.
Table no. 3 - Exposure time to create a partial burn
Temperature
Adult
Children
70 °C
1 s
--
65 °C
2 s
0,5 s
60 °C
5 s
1 s
55 °C
30 s
10 s
50 °C
5 min
2,5 min
-For the reasons stated above, it is necessary to use a thermostatic mixing valve capable of reducing the temperature at the
point of use to a value lower than that of storage in the boiler and be suitable for domestic
use;
- to maintain a constant temperature even if there are pressure and temperature variations;
- offers an anti-scalding function in case of failure of the cold water supply at the entrance.
Thermal disinfection
The diagram below shows the behavior of Legionella Pneumophila bacteria
depending on the storage water temperature.
In order to ensure a correct thermal disinfection, the value of the storage water must be at
least 60 ° C.
Boiler equiped with mixing valve kit

rev. 02.04.2020 © KÖBER SRL VADURI BRANCH
KÖBER S.R.L.
VADURI BRANCH
INSTALLATION AND USE MANUAL
NAME OF APPARATUS / EQUIPMENT
DOMESTIC HOT WATER STORAGE TANK
Edition: 1
Revision: 3
Date: 27/07/2022
Form code F-POV-05-07
Page: 9 of 20
Hydraulic characteristic
Considering the flow characteristic, the Caleffi 5213 mixing valve
can be used by the consumer at a limited number of consumption
bridges. For this reason, the flow that passes through the mixing
valve is generally the same as that at the point of consumption, for
example: sink, shower, sink, etc.
In order to ensure an optimal performance, a flow rate of at least 4
l/min must be guaranteed at the mixing valve.
The installation must always be dimensioned in accordance with
the legislation in force regarding the nominal flow rate for each
point of consumption.
Adjusting and blocking the temperature in the mixing valve
The temperature is set to the desired value with the upper hexagon screw, below the protective cap.
For increased comfort, it is recommended to adjust the maximum temperature of the hot water, in order to prevent scalding
according to the use according to the table no. 3.
Tabel nr. 3 – types of hot water use
Types of hot water use
Tmax
Bidet
38°C
Shower
41°C
Sink
41°C
Bath tub
44°C
After setting the temperature to the desired value, it locks using the lock nut.
1 - Adjust the temperature; 3 - Using the lid for adjustment; 4 - Lock the set temperature with the lock nut.
OBS: To adjust the temperature it is necessary to remove the front cover of the boiler.
From the factory - the valve is set to the Hot-max position ~ 48 ° C
3INSTALLATION INSTRUCTION
The installation, commissioning, maintenance and repair will be performed by qualified personnel with competent skills in
the domain. Before performing any work on the equipment, it will be disconnected from the main electric energy supply.
3.1 Transport to the mounting place
Transport the boiler completely packaged to the mounting place. In this way, it is best protected during transport.
For transport use adequate auxiliary means. Ensure the boiler against tipping over during transport.

rev. 02.04.2020 © KÖBER SRL VADURI BRANCH
KÖBER S.R.L.
VADURI BRANCH
INSTALLATION AND USE MANUAL
NAME OF APPARATUS / EQUIPMENT
DOMESTIC HOT WATER STORAGE TANK
Edition: 1
Revision: 3
Date: 27/07/2022
Form code F-POV-05-07
Page: 10 of 20
3.2 Installation
ATTENTION!
The boiler will be installed only indoors, protected against frost
Recommended distances to the walls must be observed in order for the anode and electrical heater to de mounted/
dismounted – figures 6, 7. The floor must be plane and must have the necessary supporting capacity.
The boiler must be placed as close as possible to the heating equipment. For thermal performance, all connections must be
thermally insulated so as to minimize heat loss.
ATTENTION!
Do not extend the support legs more than 80 mm.
The floor where the boiler is installed must be plane and must have
the necessary support capacity.
3.2.1 Wall mounting
3.2.1.1 Mounting on the lateral support
The lateral fixing support is not mounted in the factory, it must be mounted by
the beneficiary.
Mounting of the lateral support pos.1 is done with the help of two screws
M10x20 mm pos. 3 which are screwed into the boiler body - figure 8.
On the exterior jacket the place to mount lateral supports is marked. The
exterior
jacket must be cut in order to mount lateral supports.
Before the boiler is mounted on the wall, you must ensure that the walls are
made of reinforced concrete or brick (solid and safe).
3.2.2 Boiler connection
The boiler connection to the water network and electric energy grid is
done by personnel authorized for the mounting/ installation activity.
Please keep in mind the following indications for the boiler connection to the drinkable water network. These indications are
important to ensure the good functioning of the boiler with no faults.
Pressure inside the running water installation should be minimum 1 bar.
It is obligatory to mount the water softener filter and the impurity filter on the cold water flow connection.
It is recommended to connect the equipment as close as possible to the main hot water consumer in order to avoid
heat loss along the pipes.
Figure 8
Figure 6
Figure 7