Operation and
Installation Guide
24 KKV
28 KKV
28 KKO
Wall-mounted condensing boiler
Output range 5 - 27,9 kW / 5,7 - 31,7 kW
Hot water heating (24 / 28 KKV)
Lion
xxxxxxxxxx_00- v.1 7/2007
EN
version
1
Table of contents
Introduction ........................................... 2
OPERATING INSTRUCTIONS
Controls and signals ............................. 4
Control panel ......................................... 4
Selecting Read mode ............................ 5
Selecting Setup mode .......................... 5
Error codes and troubleshooting .......... 6
Boiler control scheme ........................... 7
Starting the boiler and turning it off ...... 8
Boiler control ........................................ 8
Protective functions .............................. 9
Service and maintenance .................. 10
Warranty and warranty conditions ...... 11
Technical parameters ......................... 12
Boiler connection dimensions ............. 15
Usable gauge pressure to the system .15
Function schematic diagram .............. 16
INSTALLATION INSTRUCTIONS
Introduction ........................................ 18
Completeness of delivery ................... 20
Preparing for installation .................... 22
Installing the boiler ............................. 24
Air supply and fl ue gases removal ...... 28
Components of concentric
Ø 60/100 fl ue gas removal .................. 32
Components of concentric
Ø 80/125 fl ue gas removal .................. 33
Components of separate
Ø 80 / 80 ............................................. 36
Electrical wiring ................................... 40
Interconnecting boiler with
hot water tank ...................................... 42
Conversion to other fuel ...................... 42
Boiler electric wiring diagram ............. 43
Protherm Lion 24 KKV, 28 KKV, 28 KKO
The boiler Serial No. is shown on the plate which is attached to the back of the electrical
cabinet of control panel. The control panel is situated on the front face of the boiler.
In section “Operating Instructions” you will fi nd description of the boiler’s main functions
and guidelines how to handle the boiler safely. Section “Installation Instructions” is for
competent workers only.
2
Dear customer,
you have become the owner of a Protherm
Lion wall-mounted condensing boiler,
designed to run on natural gas.
Please note: The boiler can be also run on
propane, too, provided the requirements
detailed in this Operation and Installation
Guide are met.
Lion 24 KKV and 28 KKV are boilers with
forced exhaust of combustion gases,
intended for heating of heating water
(HeW) in central heating systems and for
heating domestic hot water (HoW) in a
fl ow-through method. Lion 28 KKO in its
basic version is intended only for heating of
heating water in central heating systems.
Using a kit available for this purpose, Lion
28 KKO can be extended to heat also hot
water in an external tank.
We trust that the Protherm Lion condensing
boiler will give you a long and satisfactory
service. However, in order to achieve
this, all conditions important for its safe
operation must be met. Therefore please
study this Guide carefully and respect all
principles stated therein.
1. When installing and using the boiler,
follow all manufacturer’s instructions and
warnings in this Guide.
2. The boiler and all associated equipment
must be installed and used in accordance
with design, all applicable valid laws,
regulations and technical specifi cations
and Operation Guide for the product.
3. Call a service technician authorised by
the manufacturer to install, convert and
set up the boiler.
4. Only a service organisation authorised
by the manufacturer may put the boiler
into operation following the installation.
5. The boiler complies with regulations
applicable in the Slovak Republic. When
used in the conditions of other countries,
any deviations from local regulations
must be identifi ed and rectifi ed.
6. In the event of a defect, call a
manufacturer’s service organisation –
any unauthorised interference may
damage the boiler (and possibly also
associated equipment!).
7. The authorised service technician who
puts the boiler into service for the fi rst
time must show the user the boiler’s
functions, its different parts, safety
functions and controls. He must also give
the user a User’s Guide and explain
anything unclear in it to him.
8. Check completeness and integrity of
delivery.
9. Check whether the model and type
supplied is suitable for the required use.
10. Whenever you are not certain how to
control the boiler, study appropriate
instructions in this Operation and
Installation Guide carefully and proceed
accordingly.
11. Never remove or damage any markings
and signs on the boiler.
12. When making any repairs, only original
parts must always be used. It is forbidden
to make any changes to the boiler’s
internal installation, or to interfere with it
in any way.
13. When shutting the boiler down for a
protracted period of time, we recommend
to shut the gas supply, heating water and
hot water off and disconnect the boiler
from power supply. This recommendation
applies in conjunction with the general
conditions stipulated in this Operation
and Installation Guide.
14. Handle the boiler and its part upon the
end of its service life in compliance with
environmental requirements.
15. The manufacturer disclaims any
responsibility for damages caused by
the failure to abide by:
• the conditions stipulated in this Operation
and Installation Guide;
• applicable regulations and standards;
• proper installation and operation
procedures; and
Introduction
3
• conditions stated in the Warranty
Certifi cate and the Service Book.
Safety of equipment and people
• According to the fi ndings of SZÚ Brno,
the boiler complies with the requirements
of European directive for appliances
powered by gas fuels 90/396/EHS,
European directive on effi ciency 92/42/
EHS, European directive on electrical
appliances used within certain voltage
ranges 2006/95/EC and European
directive on electromagnetic compatibility
89/336/ EHS.
• In addition, the appliance has been
approved according to European
standards EN 297, EN 483, EN 677, EN
625, EN 60335-01, EN 50165, EN
55014, EN 61000-3-2 and EN 61000-3-
3.
• In order to run and operate the boiler in
accordance with the purpose for which it
is designed in actual conditions of use
(hereafter referred to only as use), it is
necessary to abide also by additional
requirements – the most essential ones
of which (i.e. those which must not be
omitted) are found in the following
regulatory documents:
- in the design area: STN 06 0310 and
STN 06 0830;
- in the fi re safety area: STN 92 0300;
- for installation and assembly (and
repairs): STN EN 1775 or STN 38 6460
and/or STN 38 6462, Public Notice No.
48/1982 (as amended) and binding
occupational safety and health
regulations;
- during running and operation: STN 38
6405.
- in the area of combustion gases removal,
it is STN EN 483, vendor’s material –
“Catalogue of dual tubing for exhaust of
combustion gases and supply of
combustion air, intended for Type C gas
appliances, i.e. in closed execution, the
so called “TURBO”.
• In addition to the above mentioned
documents, it is necessary when using
the boiler to proceed in accordance with
this Operation and Installation Guide
and the accompanying boiler
manufacturer’s documentation. Any
interference by children, persons under
the infl uence of narcotic drugs, certifi ed
persons, etc., when using the boiler,
must be prevented.
Situations might occur in practice, when
the following essential measures must be
adopted:
• prevent the boiler from (even accidentally)
being turned on while conducting
inspections or working on the combustion
gasses fl ue route or gas and water
distribution pipes, by disconnecting the
boiler from power supply also by other
means than merely turning the main
switch off (e.g. by pulling the power cord
plug out of power socket);
• shut the boiler down every time when
there are any (even temporary)
fl ammable or explosive fumes present
on the premises from which combustion
air is supplied to the boiler (e.g. from
paint when painting, laying and spraying
molten substances, from gas leaks,
etc.);
• if it is necessary to drain water from the
boiler or from the whole system, the
water must not be dangerously hot;
• when water is leaking from the boiler’s
heat exchanger or when the exchanger
is clogged up with ice, do not attempt to
start up the boiler until normal operating
conditions have been restored;
• when gas leak has been detected or gas
supply has been interrupted, or if it is
suspected that this has happened, shut
the boiler down, turn the gas supply off
and call the gas supply company or a
service organisation.
4
Operating instructions
Operating instructions
Controls and signals
Main switch
The main switch (Fig. 1, pos. 1) is used to
switch the boiler on or off, or to shut the
boiler down. The main switch is situated
in the bottom half of the boiler’s control
panel.
Please note: The boiler must be put into
operation and switched on for the fi rst time
by an authorised service organisation.
Control panel
On the boiler’s control panel you can
monitor instantaneous values and set the
required parameters.
Description of control elements (Fig.1):
Fig. 1
1
2
3
4
5
6
7
8
9
1110
2. Heating water LED - indicates display
mode or setting of heating water
temperature.
3. Hot water LED – indicates display mode
or setting of hot water temperature.
4. Heating water pressure LED - indicates
display of pressure.
5. Indicates boiler defect.
6. Flame indicator LED – it lights up when
burner fl ame is on.
7. MODE button – switching to different
modes of reading or setting of values.
8. Button (+) – used to increase the value
of the parameter being set.
9. RESET button - used to unblock a
defect.
5
10. Display to show pressure, temperature,
service parameters and error codes.
Selecting Read mode
11. Button (-) – used to reduce the value of
the parameter being set.
Selecting Setup mode
Setting hot water temperature
Press and keep
depressed the
MODE button for
2 seconds and
then press the
MODE button
repeatedly until the LED under the symbol
starts fl ashing. Using the „+“ and „-“
buttons set the hot water temperature to the
required value. Setting range is --, 37 to
63°C (in 1°C steps). If you select (--), the
boiler will heat only heating water.
In the KKO model with an external hot water
tank it is possible to set the required hot
water temperature in the tank only if an NTC
sensor is installed.
Setting heating water temperature
Press and keep
depressed the
MODE button for 2
seconds and then
press the MODE
button repeatedly
until the LED
under the symbol
starts fl ashing. Using
the „+“ and „-“ buttons set the heating
water temperature to the required value.
Setting range is --, 38 to 82°C (in 1°C
steps). If you select (--), the boiler will heat
only hot water, i.e. it will be working in the
so called summer mode.
Displaying heating water
temperature
After turning the
boiler on with the
main switch, the
current heating
water temperature
will appear on the
display. LED under the symbol
lights
up.
Indicating “hot water tap open”
During hot water
tap open, the
display shows
the required
temperature of
hot water. If the
boiler is coupled with an external hot
water tank with an NTC sensor, then when
hot water is running, the current hot water
temperature inside the tank is displayed
on the screen (after pressing the MODE
button). This is indicated by lighting of
LED at symbol
.
Displaying heating water pressure
Pressing and
holding depressed
the MODE button
will display heating
water pressure
in the system for
about 30 s. The
LED under the symbol
lights up
Warning “heating water pressure
too low”
When the heating
water pressure
drops below 0.6
bar or it rises
above 2.8 bar,
the heating water
pressure appears on the display. The LED
under the symbol
fl ushes. The boiler
is still functional, the pressure must be
adjusted to the recommended value 1,2
- 2 bar. When the heating water pressure
drops below 0,3 bar, the boiler shuts itself
down.
6
Function hot water COMFORT
Press and keep
depressed the
MODE button for
2 seconds and
then press the
MODE button
repeatedly until the parameter P0 or P1
Error codes and troubleshooting
Error codes
If a fault is detected, the fault symbol and
the error code will appear on the screen
in turns.
and error code
The fault is also indicated by lighting up
the LED under the symbol
.
Boiler overheated – F.20
The boiler has
overheated and is
automatically shut
down, waiting for
the temperature
to drop. When the
temperature drops
down to operating temperature, the boiler
will restart itself. If the F.20 error code
reappears, call an authorised service.
Not enough water – F.22
There is not
enough water
in the heating
system. The boiler
is automatically
shut down. Top
up water in the
heating circuit (page 10 – Topping up
water in the heating system). and then
press the RESET button. If the error code
reappears, call an authorised service.
Faulty ignition – F.28
When starting the
boiler, the burner
failed to ignite.
Check the gas
shutting valve
underneath the
boiler and press the RESET button. If the
fault persists, call an authorised service.
Please note: The boiler will make fi ve
attempts to light itself up and if it fails, fault
F.28 will appear on the display.
Need for annual service inspection.
When this
message appears,
it is necessary to
call an authorised
service and ask
them to carry out
an “annual” preventative inspection. This
type of message is not factory enabled.
The function can be enabled on request
by an authorised service, which will set
a service interval. The service interval is
counted in hours, counting the time when
the boiler’s burner is on.
Please note: That a preventative “annual”
inspection has been carried out is
indicated by displaying “SE” with one of
the standard parameters appended (e.g.
heating water temperature in the boiler).
appears on the display. Using the „+“ and
„-“ buttons select the required COMFORT
mode (preheat) parameter. Setting range
P0 – OFF, P1 – ON.
Please note: The COMFORT function
ensures a permanent pre-heating of hot
water in the exchanger, shortening the time
before hot water of required temperature
starts running out of the tap.
7
Fig. 2
Schematic diagram – boiler controls
Recommended pressure
1,2 - 2 bar .
When pressure drops below
0,3 bar, the boiler is shut down
LED is flashing
Setting range
35 - 87 °C
Setting interval 1°C
- OFF/SUMMER
mode
Proceed according to instructions
Setting range
37 - 63 °C
P1 = ON
Using buttons (+) or (-)
select P1 or P0
P0 = OFF
- OFF
Start
HeW
temperature
Water
pressure
Setting heating water
temperature
Setting hot water
temperature
COMFORT hot water
heating mode
Warning – heating water
pressure too low
Error code displayed
“Service required” message
By pressing RESET, try to
restart the boiler. If the
problem persists, call
authorised service
Service required message is
displayed when the set service
interval is up. This function must
be enabled by a service
technician
LED is flashing
LED is flashing
Setting interval 1°C
Other error codes
If other error codes appear on the display,
try to restart the boiler by pressing the
RESET button. If the fault persists, call an
authorised service.
8
Starting the boiler up
Important: Putting the boiler into operati-
on and starting it up for the fi rst time must
be done by an authorised service only!
If you wish to start the boiler after it has
been put into operation, make sure that:
1. the boiler is connected to power supply;
2. all valves underneath the boiler (hot
water, heating water, gas) are opened;
3. the heating water pressure is within the
recommended range 1,2 – 2 bar.
Turn the main switch (Fig. 1, pos. 1) ON.
A few moments later the heating water
temperature will appear on the display and
the LED under the symbol
will light up
(Fig. 1, pos. 2). When the burner ignites,
the LED under the symbol will light up
(Fig.1, pos. 6).
In the event of an emergency boiler
shutdown, a fault indicating red LED will
light up on the control panel (Fig. 1,
Position 5) and an error message code
will appear on the boiler’s display. Unblock
the boiler by pressing the RESET button
(Fig.1, Position 9). If the emergency
shutdown recurs after a short time again,
or if the boiler cannot be RESET, call an
authorised service organisation.
Turning the boiler off
Turn the main switch (Fig. 1, pos. 1) off.
If the boiler is to remain shut down for a
protracted period of time, shut all valves
underneath the boiler off (HeW, HoW, gas).
When shutting the boiler down, take into
consideration the ambient temperature in
the given season. If there is a danger that
the boiler may freeze, drain the water from
the boiler, the heating system and the hot
water pipes.
Starting the boiler up and turning it off
Boiler control
Using the boiler without room
control unit
When run in this mode, the boiler maintains
the set heating water temperature. No room
control unit is connected, the terminals for
its connection must be interconnected
with a jumper (standard factory setting).
Setting procedure:
• turn the main switch ON;
• set the heating water temperature to the
required value on the control panel.
Using the boiler with room control
unit
The boiler maintains the set heating
water temperature. The room control
unit connection terminal jumper must be
removed and the room control unit wired
to the terminals. The boiler is turned on
and off to maintained the set temperature
in the room in which the control unit is
installed. Radiators in this room must not
be equipped with thermostatic valves.
Important: You must set on the boiler
control panel a heating water temperature
(temperature of the water in the system)
which will be capable of covering thermal
losses of the building even in low outdoor
temperatures.
Please note: Use only control units
recommended and sold by PROTHERM
which are designed and tested for the
particular type of boiler. If you use a
different unit, we cannot guarantee the
boiler’s correct and full functioning.
9
Using the boiler with equithermal
control
The boiler changes the heating water
temperature as the outdoor temperature
changes.
When this type of control is used, it is
necessary to install a control unit which
has the equithermal control function,
Protherm Thermolink B or Thermolink P.
In addition, it is necessary to install an
outdoor temperature sensor.
Protection against freezing
The boiler has an antifreeze protection
system which protects the boiler (but not
the heating and the hot water distribution
systems) against freezing.
When the heating water temperature
inside the boiler drops to 8°C, the pump
is switched on, regardless of signal
from room control unit and summermode setting. When the heating water
temperature inside the boiler reaches
10°C, the pump is automatically switched
off. If the heating water temperature inside
the boiler continues to drop, at 5°C the
boiler lights itself up and heats the heating
water to 35°C.
Important: When the frost protection
function is enabled, the three-way valve
switches to the middle position and both
heating water and hot water start to be
heated.
Protection of hot water tank against
freezing
When the temperature in hot water tank
drops to 10°C, the boiler heats the tank to
15°C. The function is enabled only when
the external hot water tank with an NTC
sensor is connected.
Protective functions
Pump protection
When the pump has been continuously
idle for 23 hours, it is automatically
switched on for about 20 seconds, to
prevent it from ceasing or clogging due to
protracted inactivity.
The boiler is also equipped with a clogging
protection system.
Important: This boiler function cannot be
disabled.
Two-speed pump
Two-speed pump with automatical
switching of the speed is mouted in the
boiler. When boiler warm heating water,
pump is runing according to setup of the
parameter on control board. When boiler
warm hot water, pump is runing for higher
speed.
Please note: Pump runing parameter
may be seting up only by an authorised
technician.
Pump run-down
Pump run-down is factory set to 30
seconds for heating of hot water. When
heating a heating water, the run-down is
set to 3 minutes. The maximum run-down
can be set to 60 minutes.
Important: Room control unit and outdoor
sensor must be installed by an authorised
service only.
Setting the boiler output
The boiler is factory-set to its maximum
output. If necessary, the boiler heating
water output can be adjusted as required
(in view of the boiler’s features).
Important: Output setting may be changed only by an authorised technician.
10
Important: This boiler function is enabled
only when boiler is connected to electrical
mains.
Anti-cycling
The boiler features an anti-cycling function.
The control board calculate automatically
the delay of the next start up of boiler
depending on boiler conditions.
Disconnecting the boiler from power
supply
Disconnect the boiler from power supply
only before service or when the boiler is
to be shut down for a protracted time (see
Chapter “Switching the boiler off” on page
8). When the boiler is disconnected from
power supply, all protection functions are
disabled.
Power failure
Power failure will turn the boiler off. When
power supply is restored, the boiler will
automatically restart itself without losing
any of the set operating parameters.
If after power supply restoration the red
LED on the control panel (Fig. 1, pos. 5)
lights up, proceed in accordance with the
Toping up water in the heating
system
Water in the heating system (in small
quantities) can be topped up through the
boiler’s top-up valve (Fig. 3).
When topping up water in the system, the
following conditions must be met:
1. Pressure of the water supplied to the
boiler must be always higher than the
water pressure inside the heating
system.
instructions in section Starting the boiler
and turning if off.
Please note: The boiler may get blocked
because of overheating caused by the
pump being switched off as a result of the
power failure. This fault can be fi xed by
pressing the RESET button on the boiler’s
control panel. If the fault persists, call an
authorised service.
Safety valve
The boiler is equipped with a safety valve
which opens when the pressure in the
heating system reaches 3 bar. DO NOT
TOUCH THE SAFETY VALVE! If the
safety valve starts releasing heating water,
always turn the boiler off, disconnect it
from power supply and call an authorised
service organisation. If the heating system
repeatedly looses pressure, consult your
service organisation.
Important: All the above-mentioned
electronic protection functions are
enabled only when the boiler is connected
to power supply (the power cord plug is
inserted into a power socket and the main
switch in the ON position (I).
Service and maintenance
2. The boiler must be cold (water
temperature must not exceed 30˚C).
3. Recommended water pressure inside
the cold boiler (not more than 30˚C) is
1,2 to 2 bar.
11
Fig. 3
Water top-up system
Warranty and warranty conditions
PROTHERM Lion gas boilers are covered
by warranty defi ned in the Warranty Certifi cate, the Service Book and other conditi-
Important: If the water mains pressure
were lower or equal to the water pressure
inside the heating system, the heating
water may run into the water mains, which
is forbidden. This danger is reduced by a
built-in reverse valve installed downstream
the top-up valve.
This notwithstanding, the manufacturer
disclaims responsibility for any damages
caused by incorrect manipulation with
the top-up valve and a failure to abide
by the conditions specifi ed above. Such
damages and defects are not covered by
the boiler’s warranty.
Procedure of topping up heating water to
the boiler:
• make sure that the boiler is connected to
power supply and the main switch is in
the ON position;
• when the heating water pressure showed
on the display is below 0.6 bar, the red
LED next to the symbol
on the boiler’s
control panel fl ashes (Fig. 1, Position 4)
and the display shows current heating
water pressure.
• partially open the top-up valve (Fig. 3).
Watch the pressure grow on the boiler’s
display panel;
• fi ll the system up until the pressure
reaches the value between 1.2 and 2
bar;
• when the required pressure has been
reached, tighten the top-up valves with
your hand;
• thoroughly bleed all radiators (the water
must be running out in a continuous
stream, free of air bubbles);
• check whether the pressure shown on
the display is within 1.2 and 2 bar. If
necessary, add more water into the
system.
Cleaning
The boiler cover can be cleaned with
a moist cloth and afterwards dried and
polished with a dry cloth. Never use
abrasive detergents or solvents.
Important: before cleaning the boiler, turn
it off with the main switch.
Regular service
To assure trouble-free and safe running of
your boiler, we recommend that you have
the boiler checked and serviced in regular
yearly intervals. These inspections are
not covered by the boiler’s warranty. The
operations to be done are specifi ed in the
Service Book and must be carried out by
an authorised service.
ons specifi ed in the Operation Guide and
Installation Guide (chapters Introduction
and Boiler installation).
12
Category . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . II
2H3P
Version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B23, B33, B53, C13, C33, C43, C53, C
83
Ignition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . electronic
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .G20 . . . . . . . . . .G31
Max./min. thermal input . . . . . . . . . . . . . . . . . . . . . . . . . [kW]. . . . .25,6 / 4,5 . . . . . .25,5 / 4,5
Max./min. thermal output at temperature drop 80 / 60 °C [kW] . . . .25,0 / 4,2 . . . . . .24,8 / 4,2
Max./min. thermal output at temperature drop 50 / 30 °C [kW] . . . .27,9 / 5,0 . . . . . .26,8 / 4,7
Efficiency at temperature drop 80 / 60 °C . . . . . . . . . . . . [%] . . . . . . .98,1 . . . . . . . . . .97,1
Efficiency at temperature drop 50 / 30 °C . . . . . . . . . . . . [%] . . . . . . . 105 . . . . . . . . . 101,7
Gas consumption (Q max.) . . . . . . . . . . . . . . . . . . . . . . [m
3
/h] . . . . . 2,7 . . . . . . . . . .1,04
Gas consumption (Q min.) . . . . . . . . . . . . . . . . . . . . . . [m
3
/h] . . . . .0,48 . . . . . . . . . .0,18
Gas pressure
Supply pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [mbar] . . . . . . 20 . . . . . . . . . . . 37
Heating
Max. operating pressure . . . . . . . . . . . . . . . . . . . . . . . . [bar]. . . . . . . . . . . . . . 3
Min. operating pressure . . . . . . . . . . . . . . . . . . . . . . . . [bar]. . . . . . . . . . . . . .0,6
Recommended operating pressure . . . . . . . . . . . . . . . . [bar]. . . . . . . . . . . . 1,2 – 2
Thermal range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [°C] . . . . . . . . . . . . 35 – 87
Expansion vessel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .[l] . . . . . . . . . . . . . . . 10
Boiler water volume (heating water volume) . . . . . . . . . . .[l] . . . . . . . . . . . . . . .2,7
Max. pressure in expansion vessel . . . . . . . . . . . . . . . . [bar]. . . . . . . . . . . . . . 3
Domestic hot water (HW)
Max. supply pressure . . . . . . . . . . . . . . . . . . . . . . . . . . [bar]. . . . . . . . . . . . . . 6
Min. supply pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . [bar]. . . . . . . . . . . . . .0,5
Min. flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [l/min] . . . . . . . . . . . . .1,5
Adjustable thermal range (depending on flow) . . . . . . . .[°C] . . . . . . . . . . . . 37 – 63
Hot water consumption at Δt 30˚C . . . . . . . . . . . . . . . . [l/min] . . . . . . . . . . . . 11,8
Max. flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .[l] . . . . . . . . . . . . . . . 10
Electrical data
Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [V/Hz] . . . . . . . . . . . 230/50
Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [W] . . . . . . . . . . . . . 123
Protection cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IP45
Extraction of combustion gases
Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . turbo
Max. length of concentric flue ø 60 / 100 . . . . . . . . . . . . [Em] . . . . . . . . . . . . . 9
Max. length of concentric flue ø 80 / 125 . . . . . . . . . . . . [Em] . . . . . . 13 . . . . . . . . . . . . 9
Max. length of separate flue ø 80 + 80 . . . . . . . . . . . . . . [Em] . . . . . . . . . . . 20 + 20
Noise level (1 m from boiler at height 1,5 m) . . . . . . . . . .[dB] . . . . . . . . . . . . .do 55
Combustion gasses flow by weight . . . . . . . . . . . . . . . . .[g/s] . . . . . . . . . . . . .11,49
Dimensions - height / width / depth . . . . . . . . . . . . . . . . [mm] . . . . . . . .780 / 450 / 323
Weight excluding water . . . . . . . . . . . . . . . . . . . . . . . . . .[kg] . . . . . . . . . . . . . . 44
Technical specifications - Model 24 KKV
13
Category . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . II
2H3P
Version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B23, B33, B53, C13, C33, C43, C53, C
83
Ignition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . electronic
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G20 . . . . . . . . . .G31
Max./min. thermal input . . . . . . . . . . . . . . . . . . . . . . . . . [kW]. . . . . 29,6 / 5,3 . . . . . .29,5 / 5,2
Max./min. thermal output at temperature drop 80 / 60 °C [kW] . . . . 29,0 / 5,0 . . . . . .28,7 / 4,9
Max./min. thermal output at temperature drop 50 / 30 °C [kW] . . . . 31,7 / 5,7 . . . . . .30,6 / 5,6
Efficiency at temperature drop 80 / 60 °C . . . . . . . . . . . . [%] . . . . . . . 98,1 . . . . . . . . . .97,1
Efficiency at temperature drop 50 / 30 °C . . . . . . . . . . . . [%] . . . . . . . 104 . . . . . . . . . 101,4
Gas consumption (Q max.) . . . . . . . . . . . . . . . . . . . . . . [m
3
/h] . . . . . . 3,13 . . . . . . . . . .1,21
Gas consumption (Q min.) . . . . . . . . . . . . . . . . . . . . . . [m
3
/h] . . . . . . 0,56 . . . . . . . . . .0,21
Gas pressure
Supply pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [mbar] . . . . . . .20 . . . . . . . . . . . 37
Heating
Max. operating pressure . . . . . . . . . . . . . . . . . . . . . . . . [bar]. . . . . . . . . . . . . . 3
Min. operating pressure . . . . . . . . . . . . . . . . . . . . . . . . [bar]. . . . . . . . . . . . . .0,6
Recommended operating pressure . . . . . . . . . . . . . . . . [bar]. . . . . . . . . . . . 1,2 – 2
Thermal range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [°C] . . . . . . . . . . . . 35 – 87
Expansion vessel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .[l] . . . . . . . . . . . . . . . 10
Boiler water volume (heating water volume) . . . . . . . . . . .[l] . . . . . . . . . . . . . . .2,7
Max. pressure in expansion vessel . . . . . . . . . . . . . . . . [bar]. . . . . . . . . . . . . . 3
Domestic hot water (HW)
Max. supply pressure . . . . . . . . . . . . . . . . . . . . . . . . . . [bar]. . . . . . . . . . . . . . 6
Min. supply pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . [bar]. . . . . . . . . . . . . .0,5
Min. flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [l/min] . . . . . . . . . . . . .1,5
Adjustable thermal range (depending on flow) . . . . . . . .[°C] . . . . . . . . . . . . 37 – 63
Hot water consumption at Δt 30˚C . . . . . . . . . . . . . . . . [l/min] . . . . . . . . . . . . . 14
Max. flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .[l] . . . . . . . . . . . . . . . 12
Electrical data
Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [V/Hz] . . . . . . . . . . . 230/50
Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [W] . . . . . . . . . . . . . 125
Protection cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IP45
Extraction of combustion gases
Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . turbo
Max. length of concentric flue ø 60 / 100 . . . . . . . . . . . . [Em] . . . . . . . . . . . . . 9
Max. length of concentric flue ø 80 / 125 . . . . . . . . . . . . [Em] . . . . . . .13 . . . . . . . . . . . .9
Max. length of separate flue ø 80 + 80 . . . . . . . . . . . . . . [Em] . . . . . . . . . . . 20 + 20
Noise level (1 m from boiler at height 1,5 m) . . . . . . . . . .[dB] . . . . . . . . . . . . .do 55
Combustion gasses flow by weight . . . . . . . . . . . . . . . . .[g/s] . . . . . . . . . . . . .13,36
Dimensions - height / width / depth . . . . . . . . . . . . . . . . [mm] . . . . . . . .780 / 450 / 323
Weight excluding water . . . . . . . . . . . . . . . . . . . . . . . . . .[kg] . . . . . . . . . . . . . . 44
Technical specifications - Model 28 KKV
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