Centrometal EKO-CKS Multi Plus 170 Owner's manual

TECHNICAL INSTRUCTIONS
for installation, use and maintenance
of hot water boiler
and installation of additional equipment
TU-CKSMP-10-2022-ENG
EKO-CKS Multi Plus 170-580
Centrometal d.o.o. - Glavna 12, 40306 Macinec, Croatia, tel: [phone], fax: [phone]
HEATING TECHNIQUE
THE FIRST START-UP MUST BE DONE BY AUTHORIZED PERSON,
OTHERWISE PRODUCT WARRANTY IS NOT VALID.
ENG

These instructions are an integral part of this product. All rights reserved.
Reproduction of content of this document and transfer to third parties is
not allowed without written approval from manufacturer. Make sure the
instructions are always with the device, even if its sale / transfer of another
owner to the user or staff authorized for maintenance or repairs to consult.
i
READ THESE INSTRUCTIONS CAREFULLY BEFORE
INSTALLING THE BOILER TO HEATING SYSTEM!
Boiler must not be used by children or disabled persons (either
physically or mentally), as well as by person without knowledge or
experience, unless they are under control or trained by s person
responsible for their safety. Children must be supervised in the
vicinity of the product.
Boiler must not operate in flammable and explosive environment.
Before any work on the boiler, electric energy must be switched off.
Insufficient combustion air for chimney vent boilers with room air for
combustion can lead to dangerous conditions.
Make sure that the combustion air supply and discharge openings
are not reduced or closed off.
Keep doors to the boiler room closed.
Protect the boiler room and avoid rodents and birds from entering
and blocking the air openings.
When the above issues have not been resolved, the boiler can not be
placed in operation.
EKO-CKS Multi Plus 170-580
2
Important

EKO-CKS
Multi Plus 170
(kW)
(kW)
(mbar)
(l)
(°C)
(°C)
(kg/s)
(kg/s)
(°C)
(hours)
(°C)
(°C/bar)
(mbar)
(kW)
(%)
(l)
(mm)
(mm)
(mm)
(mm)
(kg)
(bar)
(bar)
(°C)
(R)/(DN)
(R)
(R)/(DN)
(mm)
(mm)
(mm)
(pcs.)
(mm)
(dB(A))
(V)
(Hz)
(W)
(W)
(W)
(W)
(l)
(l)
250
75-250
0,05
520
150
100
0,14652
0,05109
5
274,15 / 274
140
230×220
4350
1650
2470
3770
80
1"
40
4350
2210
2540
26 / 36
Φ202
1081
638
19,70
4049,5
1 × 1,1[kW], 400[V]
1 × 0,55[kW], 400[V]
1 × 0,18[kW], 400[V]
1 × 0,18[kW], 400[V]
2 × 0,0015[kW], 230[V]
2 × 0,0015[kW], 230[V]
4 × 0,083[kW], 230[V]
1 × 0,090[kW], 230[V]
1 × 1,6[kW], 400[V]
1 × 0,0065[kW], 230[V]
1 × 0,005[kW], 230[V]
120
90
340
102-340
0,05
965
150
100
0,1880
0,0709
12
372 / 371,58
4345
1600
2485
4260
80
1"
40
4345
2235
2540
32 / 44
with fan
under non-condensing conditions
overpressure
Φ202
<70
according to EN 15036-1
400
50
~(AC)
1330
670
25
3883,5
1 × 1,1[kW], 400[V]
1 × 0,55[kW], 400[V]
1 × 0,18[kW], 400[V]
1 × 0,18[kW], 400[V]
2 × 0,0015[kW], 230[V]
2 × 0,0015[kW], 230[V]
2 × 0,083kW], 230[V]
1 × 0,090[kW], 230[V]
1 × 1,6[kW], 400[V]
1 × 0,0065[kW], 230[V]
1 × 0,005[kW], 230[V]
6,89 [kW]
0,37-1,6 [kW]
0,37-1,6 [kW]
0,37-1,6 [kW]
x-2 [kW]
0,09 [kW]
170
90
EKO-CKS
Multi Plus 250
EKO-CKS
Multi Plus 340
TYPE
Nominal heat output
Heat output range
Boiler class
Necessary draught
Water amount in boiler
Exhaust gas temperature at nominal heat output
Exhaust gas temperature at minimal heat output
Exhaust mass flow at nominal heat output
Exhaust mass flow at minimal heat output
Setting range for temperature controller
Minimum operating time at nominal power
Minimal return temp.at boiler return tapping
Cold water tem. and pressure for safety heat exchanger
Boiler resistance on water side at nominal output
Fuel type
Max. heat input (wood chip / wood pellets)
Fuel moisture content
Fuel size
Filling chamber capacity
Filling opening dimension (h × w)
Required minimum accumulation next to boiler
Total mass - (boiler with casing and accessories)
Max. operating overpressure
Test pressure
Max. entry overpressure in thermal safety valve for
protection against return flame
Max. operating temperature
Number of turbulators (stainless steel / wire )
Heating appliance working
Heating appliance working
Heating appliance working at flue gas outlet
Flue pipe diameter
Boiler’s emission of airborne noise
Method to measure the airborne noise level
ELECTRICAL CONNECTIONS
Supply voltage
Frequency
Current type
Electrical input at nominal heat output
Electrical input at minimal heat output
Electrical input for stand by mode
Electrical power input
Cyclone fan
Conveyor 1 motor device
Ash cleaner motor device
Primary air fan
Secondary air lid motor device
Primary air lid motor device
Secondary air fan
Movable grate motor device
Electric heater
Against flame protection motor device
Motor device of 3-way mixing valve
ADDITIONAL CONNECTIONS POSSIBILITIES
Additional electrical power input
Conveyor 2 motor device (between boiler and tank)
Conveyor 3 motor device (tank conveyor)
Motor device of tank mixer
Heating pump
Motor device of flue gas chamber cleaning conveyor
Boiler ash box volume
Cyclon ash box volume
(D)
(E)
(F)
Boiler connections
Total dimensions
of the system
Total lenght
Total width
Total height
(A)
(B)
(C)
Boiler dimensions
Lenght
Width
Height
(bar) 10
450
135-450
0,05
1155
150
100
0,2343
0,0875
17
493,31 / 492,07
395
230×220
4620
1880
2555
5415
100
6/4"
50
4620
2540
2635
32 / 50
Φ202
1724
771
29,60
5388,5
1 × 2,2[kW], 400[V]
1 × 0,55[kW], 400[V]
1 × 0,18[kW], 400[V]
1 × 0,25[kW], 400[V]
4 × 0,0015[kW], 230[V]
2 × 0,0015[kW], 230[V]
6 × 0,083[kW], 230[V]
1 × 0,090[kW], 230[V]
1 × 1,6[kW], 400[V]
1 × 0,0065[kW], 230[V]
1 × 0,005[kW], 230[V]
170
90
EKO-CKS
Multi Plus 450
580
174-580
0,05
1700
150
100
0,2890
0,1071
18
637,36 / 634,57
450
230×220
4620
1970
2735
6135
100
6/4"
50
4620
2635
2810
44 / 63
Φ202
2190
890
35
5557,5
1 × 2,2[kW], 400[V]
1 × 0,55[kW], 400[V]
1 × 0,18[kW], 400[V]
1 × 0,25[kW], 400[V]
6× 0,0015[kW], 230[V]
2 × 0,0015[kW], 230[V]
8 × 0,083[kW], 230[V]
1 × 0,090[kW], 230[V]
1 × 1,6[kW], 400[V]
1 × 0,0065[kW], 230[V]
1 × 0,005[kW], 230[V]
170
90
EKO-CKS
Multi Plus 580
170
51-170
0,05
380
150
100
0,10872
0,03186
4
186,81 / 186,81
125
230×220
3995
1470
2220
2500
2"
1"
6/4"
3995
2020
2290
18 / 22
Φ182
860
610
15
3499,5
1 × 0,55[kW], 400[V]
1 × 0,55[kW], 400[V]
1 × 0,18[kW], 400[V]
1 × 0,18[kW], 400[V]
2 × 0,0015[kW], 230[V]
2 × 0,0015[kW], 230[V]
4 × 0,083[kW], 230[V]
1 × 0,090[kW], 230[V]
1 × 1,6[kW], 400[V]
1 × 0,0065[kW], 230[V]
1 × 0,005[kW], 230[V]
120
45
5
75-80; 75-93*
6,0
60
10-15°C / 2 bar
B1 Wood chip, C1 Wood pellets
max. 35 for wood chip, max. 12 for wood pellets
G30, G50 for wood chip, fi12×50 for wood pellets
330
230×220
by EN 303-5:2012, point 4.4.6.
4,0
8,0
93 (Boiler shutdown: 95°C)*
Flow and return
Charge/discharge
Safety line
TECHNICAL DATA
* Setting range for the temperature controller - depend about system configuration (see point „Boiler installation to central
heating system”.)
EKO-CKS Multi Plus 170-580 3
Technical data

NOTE:
Cyclone can be mounted on left or right side of the boiler
Conveyor 1
Junction box with boiler control unit
Automatic pneumatic air cleaning of
boiler flue passages (additional equipment)
Secondary air fan (number depend
about boiler power)
Flow line
Return line
Safety line
1
2
3
4
5
6
7
8
9
-
-
-
-
-
-
-
-
-
Boiler body
Wood chip / wood pellet burner
Cyclone
Cyclone fan motor
Cyclone ash box
Connection for thermic valve sensors
Ash box
Boiler-cyclone connection
Ash cleaners motor with gearbox
-
-
-
-
-
-
-
10
11
12
13
PLV
PVV
SV
EKO-CKS Multi Plus 170-580
4
Technical data
C
F

1.0. BOILER DESCRIPTION
Hot water boiler EKO-CKS Multi Plus 170 - 580 is automatically controlled system for producing heat by
burning wood chips and wood pellets. The boiler body is made of welded steel sheet. EKO-CKS Multi The
Plus 170 - 580 has a modern construction and design and is made out of the controlled materials of high
quality, welded with most modern technology and fulfil all special request for the connection on the
installation of a central heating system.
1.1. COMPONENTS
OBLIGATORY ADDITIONAL EQUIPMENT:
1. Feeding conveyor (Conveyor 2) for wood chip or wood pellets
2. Boiler return protection
ADDITIONAL EQUIPMENT:
1. Wood chip or wood pellets mixer with conveyor for a room
2. Wood chip container with mixer and 2m conveyor and electric actuator
3. Extension for the wood chip or wood pellet mixer conveyor
4. Automatic pneumatic air cleaning of boiler flue passages (content: air compressor, air pressure
regulator (5 bar) with manometer, safety elements of the minimum and maximum pressure)
5. System for automatic extraction of ash from the flue gas chamber (using the conveyor)
6. Buffer tank
7. Additional connection for buffer tank
8. Module for two heating circuits CM2K (max. 4 pcs.)
9. Room corrector CSK (when using CM2K)
10. Alarm module CAL
11. Communication module CM-GSM
12. Cascade manager CMNET
13. CM WiFi box (Internet supervision) or Profibus modul
14. Ash transport - TP-3M/9M/3000L-Multi Plus 340-580 (only for Multi Plus 340/450/580)
EKO-CKS Multi Plus 170-580 5
Boiler description, components

1.2. DELIVERY STATUS
Boiler EKO-CKS Multi Plus is delivered in parts for easier transportation and mounting in boiler room. On
picture below, item 1 „Boiler with boiler doors and burner” all fans and motor drives with gearbox are
shown mounted but they are delivered unmounted and it’s necessary to mount them when is boiler placed
in boiler room. Mounting procedure of all delivered part is described in „Technical-instructions-
ELECTRIC-DEVICES-EKO-CKS Multi Plus_ENG”. In picture below is showned delivery condition of
boiler EKO-CKS Multi Plus.
1. Boiler with boiler doors and burner
2. Conveyor 1 with motor drive and gearbox
3. Fuel supply box (between Conveyor 1 and Conveyor 2)
4. Conveyor 2 with motor drive and gearbox
5. Cyclone
6. Cyclone fan
7. Boiler-cyclone connection box 1/2
8. Boiler-cyclone connection box 2/2
9. Water tank holder
10. Water tank (1 or 2 pcs., depend about boiler power)
11. Ash cleaner box
12. Flue gas cleaning system (if is ordered, additional equipment)
13. Junction box
14. Boiler control unit with touch screen
15. Thermal insulation and sheet metal cover for cyclone fan and flue element flanges (in cardboard box)
EKO-CKS Multi Plus 170-580
6
Delivery status

2.0. BOILER POSITIONING AND ASSEMBLY
Always follow the most up-to-date local, municipal and building
regulations and codes.
i
2.1. BOILER ROOM
Ensure the boiler room complies with the requirements in these technical instructions. Boiler room must
be frost-proof and well ventilated. Boiler has to be positioned so that it can be properly connected to the
chimney and simultaneously, enabling tending of boiler and additional equipment, control during
operation, and cleaning and maintenance. No combustible materials may be stored in the boiler room.
Boiler may only be placed on fire and temperature resistant floor. No temperature-sensitive pipes or lines
may be installed in the floor beneath the heating boiler. The minimum distance to the walls required
according to point „Minimum distance from the boiler room walls”. The fresh air supply required according
to point „Opening for fresh air”. The temperature in the boiler room must not exceed +40°C while system is
in operation. The temperature in the boiler room must not fall below +10°C while the system is in operation.
Boiler must not operate in flammable and explosive environment.
Boiler positioning and assembly must be performed by a qualified person. Boiler should be placed on the
previously prepared concrete fundament which minimum height is 200-300 mm. Upper fundament
surface should be smooth and exactly horizontal. Boiler room must be frost proof and adequately
ventilated. Boiler should be placed that it connection to the cimney can be properly performed, cleaning
and maintenance must be possible and all parts of the boiler must be accessible. Before connecting to the
installation of central heating system boiler must be adjusted exactly in the horizontal position.
EKO-CKS Multi Plus 170-580 7
Boiler positioning and assembly, boiler room

2.2. MINIMUM DISTANCE FROM THE BOILER ROOM WALLS
FLAMMABLE ITEMS MUST NOT BE PLACED ON THE BOILER AND
WITHIN THE SAFETY DISTANCES.
A
B
C
D
E
500
500
500
1500
500
Minimum distances from the boiler room walls
EKO-CKS Multi Plus 170-580
8
Minimum distance from the boiler room walls

Each boiler room must be equipped with opening for supply of fresh air which is dimensioned in
accordance with boiler output. Such opening must be protected with a net or grate. The boiler location
must never be under negative pressure.
2.3. OPENING FOR FRESH AIR
Q - boiler output in kW
2
A - opening area in cm
A = 6,02 Q
Never cover the boiler or store debris or other materials near the
boiler, or in any way block the flow of adequate fresh air to the boiler.
Never cover the combustion air opening.
Insufficient combustion air for chimney vent boilers with room air for
combustion can lead to dangerous conditions.
Make sure that the combustion air supply and discharge openings
are not reduced or closed off.
Keep doors to the boiler room closed and do not block lovers in
boiler room door.
Protect the boiler room and avoid rodents and birds from entering
and blocking the air openings.
When the above issues have not been resolved, the boiler can not be
placed in operation.
Always follow the most up-to-date local, municipal and building
regulations and codes.
i
Boiler must not operate in flammable and explosive environment.
Equation for calculate opening area:
EKO-CKS Multi Plus 170-580 9
Opening for fresh air

2.4. CONNECTION TO THE CHIMNEY
Properly dimensioned and built chimney is the main condition for safe and economical functioning of the
boiler. The thermal insulation of the chimney has to be done properly, it has to be absolutely gas-
proof and smooth. On its lower part there has to be built in the opening for cleaning with the door. An brick-
layed chimney has to have three layers with an insulation of 30 mm in the middle, if the chimney is built
inside the house (i.e. inside the heated area), or an insulation of 50 mm if it is built outside the house (i.e.
outside the heated area). The flue gas temperature has to be at least 30°C higher then the temprerature of
their consdensation point. The choice and the construction of the chimney has to be performed by the
authorized person. Inside dimensions of the chimney intersection selected in accordance with diagram for
chimney selection, they depend of its height and nominal heat of boiler.
The flue gas tube for connecting the boiler and the chimney has to have a thermal insulation made
out of 30-50mm thick stone wool.
CHIMNEY SELECTION:
EKO-CKS MULTI PLUS model
Minimum chimney diameter
Useful chimney height*
Minimum chimney connection tube diameter
Maximum chimney connection tube lenght
Maximum number of chimney connection tube elbows
* in accordance with local regulations
For existing chimneys with not offered dimensions or out of standard is necessary to make chimney
calculation by real conditions and determine correct dimensions of flue gas connection and chimney.
If for any reason the boiler has to be connected to the chimney dimensioned for higher capacity boilers, the
possibility of condensation inside the chimney shall be highly inreased. The boiler's function shall not be
affected.
170 250 340 450 580 kW
300
250
10
5
300 350 350
350
400
350
mm
m
mm
m
pcs
4 - 20
300
5 10
35
EKO-CKS Multi Plus 170-580
10
Connection to the chimney

3.0. BOILER INSTALLATION TO CENTRAL HEATING SYSTEM
All installation works must be made in accordance with valid national and European standards. Boiler
EKO-CKS Multi Plus 170-580 can be connected to closed or open central heating systems. Boiler can be
fired with wood chip and wood pellets. Installation should be made, in according to technical standards, by
a professional who will be responsible for proper boiler operation. Before connecting boiler to central
heating system, the system has to be flushed to remove impurities remaining after system installation. It
prevents boiler overheating, noise within the system, disturbances at a pump and mixing valve. Boiler
should always be connected to central heating system by connectors/flange, never by welding.
Boiler EKO-CKS Multi Plus can be installed on following ways:
1) through buffer tank (CAS) (minimum volume of buffer tank is 12 l/kW)
- maximal adjusted temperature: 93°C (boiler shutdown: 95°C)
BOILER SHOULD ALWAYS BE CONNECTED TO CENTRAL HEATING
SYSTEM BY CONNECTORS/FLANGE, NEVER BY WELDING!
EKO-CKS Multi Plus 170-580 11
Boiler installation to central heating system

Figure 2. General connection scheme of the EKO-CKS Multi Plus 170-580 to the closed
heating system
A - Boiler flow
B - Boiler return
C - Connection line inlet-outlet
D - Heating pump
E - 3-way mixing valve with motor
drive (not included into delivery)
F - Thermal insulation of the safety boiler circuit
G - Automatic air vent pot
H - Safety valve (obligatory install by EN 12828)
I - Expansion vessel for closed systems
(approx. 10% of the total volume of installation)
LEGEND:
NOTE: CLOSING VALVES ARE NOT DISPLAYED ON THIS SCHEME
i
Hydraulic connection scheme must be performed in a manner as
shown in this scheme.
Other parts of installation which is not shown in this scheme
must be performed according to norme EN 12828:2012+A1:2014.
E
A
C
D
FG
B
M
H
I
Accumulation tank
3.1. BOILER INSTALLATION TO CLOSED HEATING SYSTEM
EKO-CKS Multi Plus 170-580
12
Boiler installation to closed heating system

3.1.1. THERMAL PROTECTION
THERMAL SAFETY PROTECTION MUST BE CONNECTED TO CITY
WATER SUPPLY, NOT TO WATER PRESSURE TANK.
By European EN norms for the closed heating system it’s obligatory to install thermal safety protection of
the boiler. Boiler is factory prepared for thermal protection installation (heat exchanger and thermal
valves). If is boiler mounted to closed heating system and if something happend that has to do with
overheating of the boiler, if thermal safety protection is not installed or incorrect installed then warranty is
not valid. Thermal protection will be activated if boiler temperature exceed 103°C.
IMPORTANT:
Thermal safety protection must be connected on plumbing installation of the building, charged from
plumbing, not from water pressure tank. At power supply failure situation exist possibilty of boiler
overheating and then water pressure tank is unable to ensure sufficitent quantity of water.
EKO-CKS Multi Plus 170-580 13
Thermal protection

THERMAL FUSE
Thermal fuse for the boiler EKO-CKS Multi Plus is composed from factory in-built heat exchanger and two
thermic safety valves (A). Boiler have two prepared connectors (C) for connecting thermic safety valves
(A) on in-built heat exchangers. Also, boiler have prepared two connectors (D) (on left and right side of the
boiler; on picture are showed just one of them) for exit from factory in-built heat exchanger. Connectors (D)
is necessary to connect to sewerage. Thermic safety valve probe (2) must be connected to prepared
connector (B).
1 - thermal protecting valve (must be facing down)
2 - thermal protecting valve probe
3 - cold water intlet (connect to city water supply)
4 - connect to prepared connectors on boiler (C)
2
1
4
3
A - Thermic safety valve
EKO-CKS Multi Plus 170-580
14
Thermal protection

3.2. BOILER INSTALLATION TO OPEN HEATING SYSTEM
3.2.1. INSTALLATION TO OPEN EXPANSION VESSEL
The boiler must be connected to the open central heating system according to the Figure 3 and Figure 4.
All lines from boiler to open expansion vessel must be isolated with thermal isolation with a minimum
thickness of 40 mm (stone wool or some equivalent thermal isolation). If is expansion vessel is placed
outside of heated area it must be thermal isolated. Open expansion vessel must be built enough highly
above the highest heating body harness and water heating to allow normal operation of the system, but
the water pressure in the boiler in any case shall not exceed the maximum allowed.
EKO-CKS Multi Plus 170-580 15
Boiler installation to open heating system, installation to open expansion vessel

Figure 3. General connection scheme of the EKO-CKS Multi Plus 170-580 to the open expansion vessel
OPC
To the boiler room
DF
CB
E
G
A - Safety boiler flow
B - Safety boiler return
C - Overflow line (has to lead
to the boiler room)
D - Air vent
E - Throttle valve
F - Open expansion vessel
(Volume = 7% of total system volume)
G - Boiler flow (heating)
H - Boiler return (heating)
LEGEND:
A
H
NOTE: CLOSING VALVES ARE NOT DISPLAYED ON THIS SCHEME
i
Hydraulic connection scheme must be performed in a manner as
shown in this scheme.
Other parts of installation which is not shown in this scheme
must be performed according to norm EN 12828:2012+A1:2014.
EKO-CKS Multi Plus 170-580
16
Installation to open expansion vessel

3.2.2. INSTALLATION TO OPEN HEATING SYSTEM
NOTE: CLOSING VALVES ARE NOT DISPLAYED ON THIS SCHEME
F - Thermal insulation of the safety boiler output
G - Automatic air vent pot
- Safety inlet line - accord. to the openH
expansion vessel
- afety outlet lineI S
LEGEND:
Figure 4. General connection scheme of the EKO-CKS Multi Plus 170-580 to the open heating
system
I
H
A - Boiler flow
B - Boiler return
C - Safety line
D - Circulation pump
E - 3-way mixing valve with motor
drive (not included into delivery)
Accumulation tank
A
C
D
FG
B
M
E
i
Hydraulic connection scheme must be performed in a manner as
shown in this scheme.
Other parts of installation which is not shown in this scheme
must be performed according to norm EN 12828:2012+A1:2014.
EKO-CKS Multi Plus 170-580 17
Installation to open heating system

4.1. BACKFIRE PROTECTION
Backfire protection in screw conveyor 1 (screw conveyor that brings wood chips / wood pellets in the boiler
burner) is done by using backfire protection lid located at the fuel supply box (between Conveayor 1 and
Conveyor 2) and the feed screw conveyor from wood chips / wood pellets container.
Backfire protection lid opens and closes by an electric motor (backfire lid motor device). Backfire
protection lid is managed by ultrasound backfilling sensor on fuel supply box. When ultrasound sensor
detect barrier (fuel) then it make power cut of electrical circuit and backfire lid motor device start closing
backfire lid. Opening of backfire lid start when is electrical circuit closed again (when ultrasound sensor
doesn’t see any barrier (fuel) in fuel supply box). At power supply failure (when is boiler works) backfire
protection lid will be start with closing immediately.
Situations when is backfire lid start to close:
- whenever ultrasound backfilling sensor detect fuel in fuel supply box
- during power failure.
- whenever conveyors (except conveyor 1) not have guarantee for work (operating setting 0%).
- whenever controller report malfunction (displayed on the screen).
Backfilling sensor (ultrasound)
Backfire lid
motor device
4.0. INSTALLATION / ADJUSTMENT / CHECK PARTS AND EQUIPMENT
EKO-CKS Multi Plus 170-580
18
Installation / adjustment / check parts and equipment, backfire protection

4.2. ADJUSTMENT OF BACKFIRE PROTECTION LID
MAIN PARTS:
PROCEDURE OF BACKFIRE PROTECTION LID ADJUSTMENT
1. Turn of electrical supply on junction box.
2. Remove cover lid from fuel supply box.
3. Nuts on clam must be relased before the following actions.
4. Wind up return flame protection motor device in a way that rotate motor device handle
counterclockwise and make three rounds. Hold the handle and pull the switch in position „LOCKED”.
1 - fuel supply box
2 - backfire protection lid
3 - backfire protection lid motor device
Handle
Clamp
Nuts
AB
Switch
A - unlocked
B - locked
EKO-CKS Multi Plus 170-580 19
Adjustment of backfire protection lid

5. Take a lid with hand, lift it up to the top of fuel supply box and hold it. With other hand tight nuts on clamp.
During tighting nuts make attention that lid must be on the center of fuel supply box.
6. When is nuts tighted, lid must stand alone (without holding) on the top of fuel supply box.
7. Pull switch on motor device in position „UNLOCKED”. Motor device will be additionaly press lid on top of
the fuel supply box.
EKO-CKS Multi Plus 170-580
20
Adjustment of backfire protection lid