Maktek OMEGA Manual

rev.no:02
23.08.2019

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1. SAFETY.................................................................................................................
1.1 SYMBOL KEY....................................................................................................
1.2 SAFETY PRECAUTIONS..................................................................................
1.3 GENERAL EXPLANATIONS.............................................................................
1.4 C.O.S.H.H..........................................................................................................
1.5 PREPARATION.................................................................................................
1.5.1 Load Check .................................................................................................
1.5.2 Boiler Location.............................................................................................
1.5.3 Central Heating Installation..........................................................................
2. INTRODUCTION OF THE DEVICE.......................................................................
2.1 APPERANCE AND EXTERNAL DIMENSIONS.................................................
2.2 COMPONENTS OF THE BOILER.....................................................................
2.2.1 6-40 kW Models...........................................................................................
2.2.2 50-100 kW Models......................................................................................
2.3 OPERATION PRINCIPLE OF THE DEVICE.....................................................
2.4 MAIN FEATURES OF THE BOILER ................................................................
3.MOUNTING AND INSTALLATION........................................................................
3.1 UNPACKING......................................................................................................
3.1.1 Delivery Content ..........................................................................................
3.2 INSTRUCTIONS FOR MOUNTING...................................................................
3.3 MINIMUM SPACES FOR INSTALLATION........................................................
3.4 WALL MOUNTING.............................................................................................
3.5 HEATING AND HOT WATER SYSTEM INSTALLATION CONNECTIONS.....
3.6. CIRCULATION PUMP INFORMATION............................................................
3.6.1 Energy Efficient Pump (Optional)..................................................................
3.6.2 3-Speed Circulation Pump...........................................................................
3.7 BOILER INSTALLATION DIAGRAMS...............................................................
3.7.1 With DHW (Plate Heat Exchanger)...............................................................
3.7.2 Only Heating.................................................................................................
3.7.3 Installation With Hot Water Cylinder.............................................................
3.8 ELECTRIC CONNECTION................................................................................
3.8.1 Electricity Connection Precautions...............................................................
3.8.2 Electricity Supply Connection.......................................................................
3.8.3 Electrical Connection Diagram 220V (Monophase).....................................
3.8.4 Electrical Connection Diagram 380V (3-phase)...........................................
3.9 MAIN BOARD SWITCHES................................................................................
3.9.1 Switches 1....................................................................................................
3.9.2 Switches 2....................................................................................................
3.10 ROOM THERMOSTAT CONNECTION...........................................................
3.11 ELECTRICITY CONNECTION PARAMETERS..............................................
4. COMMISSIONING.................................................................................................
4.1 FILLING WATER TO THE SYSTEM.................................................................
4.2 STARTING UP..................................................................................................
5. USER INSTRUCTIONS..........................................................................................
5.1 CONTROL PANEL............................................................................................
5.2 ERROR CODES................................................................................................
5.3 TROUBLESHOOTING .....................................................................................
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6. SAFETY SYSTEM OF THE DEVICE ...................................................................
6.1 RCD DEVICE (SHORT CIRCUIT RELAY).......................................................
6.2 HEATING TANK FLOAT LEVEL SENSOR (H6) ..............................................
6.3 LOW WATER PRESSURE...............................................................................
6.4 OVERHEAT LIMIT THERMOSTAT..................................................................
6.5 SHORT CIRCUIT THERMOSTAT....................................................................
6.6 FROST PROTECTION .....................................................................................
6.7 DOMESTIC HOT WATER NTC SENSOR........................................................
6.8 CENTRAL HEATING NTC SENSOR ...............................................................
6.9 HIGH WATER PRESSURE PROTECTION.....................................................
6.10 PRECAUTION AGAINST PUMP LOCK.........................................................
6.11 3-WAY VALVE ACTUATOR MOTOR SAFETY.............................................
6.12 AUTOMATIC BY-PASS..................................................................................
7. TECHNICAL TABLE.............................................................................................
8. MAINTENANCE...................................................................................................
9. GUARANTEE CONDITIONS ................................................................................
10.EXPLODED VIEW 6 - 40kW MODELS..............................................................
10.1 MAIN HEAT EXCHANGER GROUP DETAIL................................................
10.2 HYDROLIC GROUP DETAIL.........................................................................
10.3 RELAY BOARD GROUP DETAIL..................................................................
10.4 EXPLODED VIEW PARTS LIST....................................................................
11. EXPLODED VIEW 50 - 100kW MODELS..........................................................
11.1 MAIN HEAT EXCHANGER GROUP DETAIL................................................
11.2 RELAY BOARD GROUP DETAIL..................................................................
11.3 EXPLODED VIEW PARTS LIST....................................................................
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1. SAFETY
1.1 SYMBOL KEY
This symbol expresses the risk of serious personel injury or death unless taking care of
warnings.
This symbol expresses the risks which can cause minor injuries or harms to
the environmet and goods.
1.2 SAFETY PRECAUTIONS
Do not open the protective cover of the device.
Electric shock as a result of the contact with electrical items.
Personel injury like burnt as a result of contact with overheated surfaces or cut as a
result of contact with sharp surfaces.
Do not remove the device from the place of mounting, do not disconnect the
electrical or water connections. (Get in contact with authorized service)
Electric shock as a result of the contact with electrical items.
Flood as a result of demounted water installation.
Protect the main energy cable against damages.
Electric shock danger as a result of contact with not izolated open wires.
Do not leave tools or other objects on the device.
Injury resulted from falling objects from device because of vibration.
Damage to the furniture or floor or animals resulted from falling objects from device
because of vibration.
Do not climb on the device.
Personel injury as a result of falling down with device or falling down of the device itself.
Damage risk under device as a result of fall down from the place installed.
Do not climb on unsteady objects like stool, chair or ladders for cleaning or
maintenance.
Personel injury resulted from falling down from height or cuts which can be caused from
a rapid closing of the ladder.
Do not clean the device without switching it to off position and cutting of the main
energy supply.
Electric shock as a result of the contact with electrical items.
Use the device for only heating the house and getting hot water.
Explosion and damage risk resulted from inappropriate using and overloading.
Damage risk to the environment resulted from inappropriate using.
Do not allow children or adults who have limited physical or mental competance,
or People lacking the knowlagde about the operating instructions of the boiler to
intervene with the device.
Risk of damage to device resulted from misuse.
Personal injury from burnts, breathing smoke or poisoning.
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Pay attention to not damaging the electric cables and water pipes inside the wall
while making holes on wall for boiler mounting plate.
Electric shock as a result of the contact with electrical items.
Flood risk resuls from water pipe puncture.
Suitable profiled cables must be used in all electric connections.
Fire risk results from overheated law profiled cables.
1.3 GENERAL EXPLANATIONS
MAKTEK Electric Boiler provides the heating by central boiler heating system and with
radiators connected to the system and provides hot water by heat exchanger.
Installation and services must be in accordance with recent standarts and announced
directives. Our company is not responsible for damages caused from wrong
installation and usage.
Make sure the boiler is operated only to comply the intended use of the boiler. Any
usage which does not comply with the boiler's intended use may cause serious injury,
death or harms to the environment and goods.
ATTENTION ; Only Autorised Services and Manufacturer are responsible for the
boiler.Do not allow other people to interfere with the settings of the boiler.
1.4 C.O.S.H.H
Materials used in the manufacture of this appliance are non-hazardous and no special
precautions are required when fitting or servicing this appliance.
1.5 PREPARATION
1.5.1 Load Check
A load check should be taken into consideration when installing high output boilers.
1.5.2 Boiler Location
The boiler must be installed on a wall that will provide an adequate fixing, and should
be installed in a location that the boiler and pipe-work are not subject to frost and
damp conditions.
1.5.3 Central Heating Installation
Detailed recommendations are given in EN 12828.
Pipes forming part of the useful heating surface should be insulated to prevent any
potential heat loss or frost damage.
Drain valves should be fitted at the lowest point of the system pipe work in an
accessible position.

3
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435
320
740
755
575
320
6-40 kW
50-100 kW
2. INTRODUCTION OF THE DEVICE
2.1 APPERANCE AND EXTERNAL DIMENSIONS

2.2 COMPONENTS OF THE BOILER
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a. Main heat exchanger
b. Heating elements
c. 3-way valve actuator motor
d. DHW temperature NTC sensor
e. Flow manifold
f. Water pressure switch
g. Pressure gauge
h. Plate heat exchanger
i. Electronic flow sensor
j. Filling valve
k. Circulation pump
l. Return manifold
m. 3 bar safety valve
n. Expansion vessel
o. Relay board
p. Cooling fan for relay board
q. CH temperature NTC sensor
r. Short-circuit thermostat
s. Limit thermostat
t. Circuit braker
u. Cable gland fixing plate
v. Cable gland
w.Earth connection
x. Rail terminal block
y. Float level sensor
z. Manual air vent
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2.2.1 6-40 kW Models

a. Main heat exchanger
b. Heating elements
c. Pressure gauge
d. Circulation pump
e. Return manifold
f. 3 bar safety valve
g. Water pressure switch
h. Relay board
i. Cooling fan for relay board
j. CH temperature NTC sensor
k. RCD Device
l. Short-circuit thermostat
m. Limit thermostat
n. Insulator connectors
o. Protective cover
p. Cable gland
q. Float level sensor
r. Manual air vent
s. Filling valve
t. Expansion vessel
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2.2.2 50-100 kW Models
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2.3 OPERATION PRINCIPLE OF THE DEVICE
MAKTEK Omega electric combi boiler provides central heating with the use of panel
radiators or underfloor heating pipes. The primary heating circuit water is heated in the
main heat exchanger with the heating elements. The hot water circulates the installation
with the help of the circulation pump, delivering hot water to the radiators or underfloor
heating pipes.
The boiler also produces domestic hot water to be used in sinks and showers in the house.
The DHW is generated by the plate heat exchanger located inside the boiler.
Electric combi boiler senses the DHW demand when the water tap is opened and the 3-way
valve actuator motor changes postion to divert the hot water to the plate heat exchanger
automatically in order to produce DHW. In winter mode operation, DHW supply is always
prioritized.
2.4 MAIN FEATURES OF THE BOILER
•MAKTEK Omega electric combi boiler uses ONLY electricity as fuel.
•The device is equipped with many safety functions to provide risk free operation.
•Operates with 99% efficiency.
•Eco-friendly, 0 emissions.
•Due to its quiet operation and lack of connections like chimneys, it can be mounted in
living areas easily.
•It offers an aesthetic look with its minimized dimensions and exterior design. Running
costs are 32 lower than diesel boilers and 25 lower than LPG boilers. Provides hot
water in constant temperature at set value.
•Heating system can quickly enter the regime and heat the house.
•Protection against high pressures with 3 bar safety valve.
•Manometer
•Energy efficient circulation pump.
•1 bar set safety switch.(protection againts running without water)
•Built-in RCD (short circuit relay) provides electrical protection and safe operation.
•Automatic by-pass system.
•Modulation according to room temperature (with optional room thermostat)
•Electronic water temperature control with NTC system.
•Electronic temperature adjustment thermostat.
•Limit thermostat against overheating.
•Short-circuit thermostat for increased protection.
•Anti-jamming system. Operating in every 24 hours to prevent pump jamming.
•Frost protection system.
•Wide capacity range, from 6 kW upto 100 kW. Meets a wide range of heating
requirements.

3.MOUNTING AND INSTALLATION
3.1 UNPACKING
Open the box as seen in the above sketch. Place the box on the ground, arrows on the
box pointing to the ground. Cut the cords or remove the staples, fold the lids of the box
on each side and turn the box upside down. Pull the box upwards and remove it.
3.1.1 Delivery Content
3.2 INSTRUCTIONS FOR MOUNTING
Boiler should not be installed in humid places such as bathrooms and areas that may
be affected by rain water.
The boiler should be installed on strong walls that can carry it and perpendicular to the
ground.
Spesific space must be left around the for the authorized service to intervene in the
event of a technical breakdown or maintenance. You can find the minimum spaces
required for installation in the below diagram.
Only use the wall plugs, screws and wall mounting plate supplied with the device during
installation.The boiler must be installed vertically (upright position) and checked with a
spirit level so that it can work properly after installation. Failure to do so will invalidate
the warranty.
3.3 MINIMUM SPACES FOR INSTALLATION
At least the following space must be left in order to reach the internal parts of the
device easily when a failure occurs or when maintenance is carried out.
Suggested space is the minimum space and it is favorable to leave more space
depending on the situation.
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QTY
DES ., CRIP'T'l1 ON
1 Electric.al C•ombi Boi ler
·1 Walll Moun1ting1
Pl.ate
1 D·ocu1
menits
Pack
4 1I0x50 Wall Plug I
4 M7x5101 s.
crew
1RCD Device Box
24x30 Wood Screw
26 mm Wall Plug
6-40 kW 50-100 kW
1RCD Device
1Documents Pack
410x50 Wall Plug
4M7x50 Screw
DESCRIPTION
1Electrical Combi Boiler
1Wall Mounting Plate
QTY DESCRIPTION
1Electrical Combi Boiler
QTY
4M7x50 Screw
1Wall Mounting Plate
1Documents Pack
410x50 Wall Plug

3.4 WALL MOUNTING
•Place the mounting plate parallel to
the floor. (Check with spirit level).
•Mark the holes on the wall.
•Drill on the marked spots and insert
the wall plugs.
•Place the wall mounting plate and fix it
on the wall using the screws.
•Hang the boiler on the mounting plate.
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3.5 HEATING AND HOT WATER SYSTEM INSTALLATION CONNECTIONS
•At DHW function, please make sure that the pressure of the city water network on
cold water inlet side is not more that 6 Bars. If the network pressure is more than 6
Bars, a pressure regulator must be added. In order for the DHW system to run, the
minimum pressure level of the network must be 0,8 Bar.
•In order to provide a good circulation at heating function, installation pipe diameters
must be selected properly and diameter restrictions should not be allowed at elbow
passage. When selecting the pipe diameter, pipe resistance above the capacity of
the pump must be avoided. You can see the pump capacities from the pump
pressure curve.
•When there is a pressure increase at heating system, the security ventile operates in
order to discharge water to decrease pressure.
•When radiator thermostatic valves are installed in the heating system and when the
heat balance is provided at all isolated departments, if the thermostatic valves turns
off the system, automatic by-pass system immediately runs in order to provide the
minimum circulation in heat exchanger and provides the safety of device.
•Insulation : We recommend that all pipe-work is insulated where practical. Especially
the primary pipe-work with in a boiler cupboard.This will reduce heat loss and protect
the cupboard from high temperatures.
CAUTION ! : During installation ; on the return water inlet pipe , usage of 3/4" particule
filter and 2 valves on both sides of the filter is advised. On the cold water inlet pipe 1/2"
particule filter and valve must installed.
CAUTION ! : The primary circuit must be flushed to ensure that no debris is traped in
the system. Failure to do so may lead to boiler failure which will not be covered by
manufacturer's warranty. Where existing radiators and pipe-work is used, a power flush
must be carried out to remove debris.
•Central heating and domestic hot water pipe connections must be made according to
the below figure. Make sure to remove the plastic taps before making the pipe
connections. Inlets and outlets are clearly marked with blue and red colors on the
bottom of the boiler.
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•LED indicator combinations during pump venting
function, manual restart and key lock
3.6 CIRCULATION PUMP INFORMATION
3.6.1 Energy Efficient Pump (Optional)
•Signal display
•LED is lit up in green in normal operation
•LED lights up/flashes in case of fault
•Display of selected control mode Δp-v, Δp-c and
con-stant speed
•Display of selected pump curve (I, II, III) within the
control mode
-
-
Ii
/
I
!Press ur e G, auge
H eat i ng W ate r Ou itl et G 3/4
Domes tic Ho,t W ate r Out l et G l/2
Co ld W ate r l1n!et ,G l/2
- -
•••
- -
•••
Sa1fe ty V,a lv e ,Q1 u1tll et
Return W ater llnll et ,G 3/4.
Pressure gauge
Heating water outlet G1/2
Domestic hot water outlet G 1/2
Filling Valve
Return water inlet G 3/4
Cold water inlet G 1/2
Indicator Lights (Leds)

Select control mode
• Select pump curve (I, II, III) within the control mode
Press and hold
• Activate the pump venting function
(press for 3 seconds)
• Activate manual restart (press for 5 seconds)
• Lock/unlock button (press for 8 seconds)
Press
Operating button
Control modes and functions
Recommended for two-pipe heating systems with radi-
ators to reduce the flow noise at thermostatic valves.
The pump reduces the delivery head to half in the case
of decreasing volume flow in the pipe network.
Electrical energy saving by adjusting the delivery head
to the volume flow requirement and lower flow rates.
There are three pre-defined pump curves (I, II, III) to
choose from.
Recommended for underfloor heating or for large-sized
pipes, applications without a variable pipe network
curve (e.g. storage charge pumps) or
single-pipe heating systems with radiators.
The control keeps the set delivery head constant irre-
spective of the pumped volume flow.
There are three pre-defined pump curves (I, II, III) to
choose from.
Constant differential
pressure Δp-c
(I, II, III)
II
III
I
H/m
Q/m³/h
III
I
II
H/m
Q/m³/ h
Variable differential
pressure Δp-v
(I, II, III)
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Recommended for systems with fixed
system resistance requiring a constant
volume flow.
The pump runs in three prescribed fixed
speed stages (I, II, III).
Constant speed
(I, II, III)
I
III
II
H/m
Q/m³/ h
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Water Flow (m3 / h)
Water Flow (m3 / h)
Height (m)
Height (m)
3.6.2 3-Speed Circulation Pump
MAKTEK Omega Boiler is supplied with a 3-speed circulation pump in standard. You can
choose the required pump speed according to the resistance of your installation. You can
use the below diagram for deciding the pump speed.
NFSL 12/5
NFSL 12/7
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3.7 BOILER INSTALLATION DIAGRAMS
3.7.1 With DHW (Plate Heat Exchanger)
Heating Water Outlet G 3/4
Domestic Hot
Water Outlet
G 1/2
Cold Water
Inlet G 1/2
Return Water
Inlet G 3/4
Particule Filters
Radiator
Valve
Cold Water Inlet
DHW Outlet
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3.7.2 Only Heating
Return Water
Inlet G 3/4
Heating Water Outlet G 3/4
Cold Water
Inlet G 1/2
Radiator
Valve
Particule Filters
Cold Water Inlet
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Radiator
Heating Water Outlet G 3/4
Return Water
Inlet G 3/4
Cold Water
Inlet G 1/2
Cylinder Outlet G 3/4
Cylinder Inlet G 3/4
Solar Panels
Solar Panel Inlet
Solar Panel Outlet
DHW Outlet
DHW Return
Cold Water Inlet
Safety Valve
Thermostat
3.7.3 Installation With Hot Water Cylinder
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