Centrometal EKO-CKS P 140 Owner's manual

TECHNICAL INSTRUCTIONS
for installation, use and maintenance
of hot water boiler
and installation of additional equipment
EKO-CKS P UNIT
HEATING TECHNIQUE
Centrometal d.o.o. - Glavna 12, 40306 Macinec, Croatia, tel: [phone], fax: [phone]
TU-CKSP-10-2022-ENG
ENG

140 180 230 280
(R)
(R)/(DN) 2"
1"
EKO-CKS P UNIT
(E) / lenght with cyclone (E')
(D)
(F) / height with cyclone (F’)
Boiler
connections
Total boiler
dimensions
with burner
Total lenght
Total width
Total height
Flow and return line
(male thread)
Charge / discharge
(female thread)
Safety line
(A) / with burner (A')
(B)
(C)
Dimensions
(for import
into boiler room)
Lenght
Width
Height
320
f
80
1"
430
80
1"
100
5/4"
2”
1"
80
1"
(R)/(DN)
(kW)
(kW)
(mbar)
(mbar)
(l)
(°C)
(°C)
(kg/s)
(kg/s)
(h)
(h)
(mbar)
(kW)
(%)
(l)
(mm)
(l)
(W)
(W)
(V~)
(Hz)
(mm)
(mm)
(mm)
(kg)
(kg)
(bar)
(bar)
(°C)
(°C)
(mm)
(mm)
(mm)
(mm)
(mm)
(mm)
Boiler body
Cm Pelet set
Burner
Nominal heat output
Heat output range
Boiler class
Required chimney underpressure *1
*2Required chimney underpressure
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
Minimum operating time at rated power
Advised cleaning intervals for boiler
Boiler resistance on water side at nominal output
Fuel type
Maximum heat input
Fuel moisture content
Fuel size
Firebox volume
Combustion chamber dimensions
Combustion chamber volume
Combustion chamber type
Required minimum accumulation next to boiler
Nominal electrical power input
Max. additional electrical power
Supply voltage *3
Frequency
Current type
Boiler body mass
Total mass - (boiler with casing and accessories) *4
Max. operating overpressure
Test pressure
Max. operating temperature
Min. temperature of outlet line
Flue gas tube - external diameter *5
Flue gas tube - external diameter *6
(G) / height with cyclone (G’)Flue g. connect. height
EKO-CKS P 150
200
CPPL-200 inv
140
42-140
5
0,25
0
380
120
70
0,107
0,046
48
4
161,7
268
480x865x690
426
1440
800
1775 / 2490
815
1875
962
1190
250
Ø182
6/4"
2590 / 3300
3105
1875 / 2215
1555 / 1885
EKO-CKS P 200
200
CPPL-200 inv
180
54-180
5
0,25
0
520
120
75
0,138
0,059
48
5
200,6
390
468x1265x690
661
1440
800
2175 / 2890
815
1875
1211
1435
300
Ø182
6/4"
2960 / 3670
3210
1875 / 2210
1570 / 1885
EKO-CKS P 300
300
CPPL-300 inv
280
84-280
5
0,25
0
963
120
80
0,215
0,091
48
12
297,9
805
648x1615x790
1119
1440
800
2485 / 3210
915
2300
2073
2220
300
Ø182
40
3280 / 4015
3210
23030 / 2585
1905 / 2260
EKO-CKS P 380
350
CPPL-350 inv
320
96-320
5
0,25
0
1155
120
80
0,245
0,104
48
17
343,1
964
648x1615x945
1509
1440
800
2485 / 3205
1065
2370
2343
2500
300
Ø202
40
3280 / 4105
3350
2370 / 2720
1980 / 2350
EKO-CKS P 500
600
CPPL-600 inv
430
129-430
5
0,25
0
1700
120
75
0,330
0,140
48
18
467,4
1535
715x1860x1192
1746
1990
800
2890 / 3750
1315
2550
2920
3710
300
Ø202
40
3790 / 4650
3600
2555 / 2885
2170 / 2520
6,0
Wood pellets (C1 by EN 303-5:2012, A1 by ISO 17225-2:2014)
max. 12
6 x max. 50
Overpressure
by EN 303-5:2012 point 4.4.6.
230 / 400
50
~
3,0
6,0
90
60
EKO-CKS P 250
300
CPPL-300 inv
230
69-230
5
0,25
0
790
120
75
0,176
0,075
48
8
249,3
658
683x1265x790
1035
1440
800
2140 / 2860
915
2300
1741
1870
300
Ø182
40
2960 / 3690
3210
2290 / 2585
1905 / 2255
499 560
EKO-CKS P 550
600
CPPL-600 inv
499
149-499
5
-
0
1770
120
75
0,382
0,163
48
24
545,4
2011
715x2360x1192
2011
3090
800
3390 / 4250
1315
2550
3186
4825
-
Ø202
50
4420 / 5280
4300
2550 / 2870
2500
EKO-CKS P 600
600
CPPL-600 inv
560
168-560
5
-
0
2040
100
70
0,429
0,183
48
29
614,3
2245
816x2360x1192
2295
3090
800
3390 / 4240
1315
2890
3420
5760
-
Ø202
50
4360 / 5220
4300
2890 / 3255
2890
*1 - boiler without CCP cyclone and CVX fan
*2 - boiler with CCP cyclone and CVX fan.
*3 - for boilers with cyclone and CVX fan supply voltage is 400 V.
*4 - mass without cyclone and CVX fan for boilers EKO-CKS P UNIT 140-430 and with cyclone and CVX fan for
boilers EKO-CKS P UNIT 499-560.
*5 - flue gas tube - external diameter - for boilers without cyclone and CVX fan
*6 - flue gas tube - external diameter - for boilers with installed cyclone and CVX fan - diameter on CVX fan output
100
6/4"
100
6/4"
TECHNICAL DATA
2Technical instructions PelTec-Compact
2Technical instructions EKO-CKS P UNIT

TP
OCD
T
REG
PT
K
PL
EMV
-
-
-
-
-
-
-
-
Feeder screw
Opening for cleaning a flue gas box
Thermometer
Boiler control unit
Pressed air acumullation tank 50 l
(on CPPL-600 inv - 2 x 50 l)
Air compressor
Pellet burner CPPL
Magnetic valve (for CPPL-600 inv
2 pcs.)
LEGEND:
PLV
SPLV
DPO
ZP
SPVV
PVV
PP
SP
NK
CZ
RE
-
-
-
-
-
-
-
-
-
-
-
Boiler flow line
safety flow line
Flue gas tube connection
Underpressure regulator lid
safety return line
Boiler return line
Charge / Discharge
Pellet tank
Fuel level indicator
Supply pipe
Junction box with boiler control unit
* Installation of pellet tank on the right side of the boiler
Delivery state only by order:
*** Additional equipment
AC
AE
-
-
*** ADDITIONAL EQUIPMENT
AC***
E
PLV SPLV
A
E'
DPO
SPVV
PVV
PP
Version without cyclone
Boilers: EKO-CKS P UNIT 140-430
Version with cyclone
Boilers: EKO-CKS P UNIT 499-560;
Additional equipment for boilers
EKO-CKS P UNIT 140-430
KPT
** Installation two boilers on the one pellet tank
*The following should be done: install lower boiler door that opens from right to left, el.-magnetic valve to the burner left
side, position the pressure vessel compressor on the left tank side
**The following should be done: position a pellet tank with possibility of installation of two feeders between boilers
(available angles between pellet feeders are 90° and 180°)
TP
CZ
ZP
SP
CZ
KPT
DPO
SPVV
PVV
NK
EMV
PL
TP
AE***
B
D
C=F
G
SP
SP
NK
Automatic ash removal system
out of the boiler combustion chamber
Automatic cleaning system of the
heat exchanger's flue gas tubes
(passages) by air (pneumatic)
A'
G’
F’
CI***
CI*** CI***
CI - Cyclone with with fan
(standard delivery for
EKO-CKS P UNIT 499 and
EKO-CKS P UNIT 560)
RE
Pellet tank on the left side of the boiler (standard delivery state)
RSE***
ACK***
RSE
ACK
- Rotary dosing valve RSE
(return flame protection)
- automatic removal of ash from
the flue chamber by a spiral
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Technical instructions EKO-CKS P UNIT

COMPONENTS
Boiler Power
range (kW)
EKO-CKS P
500 129 - 430
EKO-CKS P
380 96 - 320
EKO-CKS P
250 69 - 230
EKO-CKS P
300 84 - 280
EKO-CKS P
150 42 - 140
EKO-CKS P
200 54 - 180
Cm Pelet-set 200:
- pellet burner CPPL-200 inv
(with automatic cleaning)
- pressure vessel 50 lit.
- compressor Michelin
- Electrical enclosure with
controller and control unit
- electromagnetic valve
- air feeding tube 1”
Cm Pelet-set 300:
- pellet burner CPPL-300 inv
(with automatic cleaning)
- pressure vessel 50 lit.
- compressor Michelin
- Electrical enclosure with
controller and control unit
- electromagnetic valve
- air feeding tube 1”
Cm Pelet-set 350:
- pellet burner CPPL-350 inv
(with automatic cleaning)
- pressure vessel 50 lit.
- compressor Michelin
- Electrical enclosure with
controller and control unit
- electromagnetic valve
- air feeding tube 1”
Cm Pelet-set
Obligatory
equipment
Basic equipment (OO)
EKO-CKS P
UNIT 430
EKO-CKS P
UNIT 320
EKO-CKS P
UNIT 280
EKO-CKS P
UNIT 230
EKO-CKS P
UNIT 180
EKO-CKS P
UNIT 140
Cm Pelet-set 600:
- pellet burner CPPL-600 inv
(with automatic cleaning)
- 2 pressure vessels 50 lit.
- compressor Michelin
- Electrical enclosure with
controller and control unit
- 2 electromagnetic valves
- air feeding tube 1”
- air feeding tube ½”
EKO-CKS P UNIT (140-560 kW)
EKO-CKS P
550 149 - 499
EKO-CKS P
UNIT 499
EKO-CKS P
600 168 - 560
EKO-CKS P
UNIT 560
Cm Pelet-set 600:
- pellet burner CPPL-600 inv
(with automatic cleaning)
- 2 pressure vessels 50 lit.
- compressor Michelin
- Electrical enclosure with
controller and control unit
- 2 electromagnetic valves
- air feeding tube 1”
- air feeding tube ½”
- cyclone, fan CVX200
Cm Pelet-set 600:
- pellet burner CPPL-600 inv
(with automatic cleaning)
- 2 pressure vessels 50 lit.
- compressor Michelin
- Electrical enclosure with
controller and control unit
- 2 electromagnetic valves
- air feeding tube 1”
- air feeding tube ½”
- cyclone, fan CVX200
Other additional
equipment
(all power ranges):
- CMNET cascade manager, CM-GSM communication module, CAL alarm module, CM2K module for two heating circuits via outdoor temperature (max 4x CM2K),
CSK room corrector (possible installation with CM2K module), CM WiFi-box system for boiler monitoring over PC, tablet or mobile phone, feeding transporters
from other tanks, silo for pellets, rotary dosing valve (RSE), ash removal from the flue gas chamber
Additional equipment involved
into the configurations
CIK AC-K AC+K
Configuration CIK Boiler Power
range (kW)
- cyclone
- fan
- addition to
regulation
for fan
control
- automatic ash
removal from
the
combustion
chamber
- automatic ash
removal from
the flue gas
chamber
- automatic
(pneumatic)
cleaning of
flue gas tubes
of thermal
protection with
compressor
set, but
without the
compressor
- DHW tank
steering
- automatic ash
removal from
the
combustion
chamber
- automatic ash
removal from
the flue gas
chamber
- automatic
(pneumatic)
cleaning of
flue gas tubes
of thermal
protection with
compressor
(instead of
'Compressor
Michelin' from
the basic
delivery, it is
delivered
'Compressor
Kaeser with
compressor
set).
- DHW tank
steering
- pellet tank
- boiler return
protection with
3-way mixing
valve and
actuator and
boiler pump
- accumulation
tank
(min. 10 l/kW)
or hydraulic
crossover
- set of safety
elements
min/max
boiler water
pressure
- pellet
conveyor
CPPT-200
- pellet
conveyor
CPPT-300/350
- pellet
conveyor
CPPT-600
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4Technical instructions EKO-CKS P UNIT

EKO-CKS P UNIT is a special steel boiler for central heating systems. It has been constructed on
the basis of a long term experience and design for wood pellets firing.The steel body of the boiler is
welded according to modern technology, produced out of high quality materials. Atested in
compliance with EN-303-5 norm and fulfil all special request for the connection on the installation of
a central heating system. It is constructed for a maximum operating pressure of 3,0 bar. The entire
surface inside the boiler which comes in touch with fire or with smoke is in contact with water and
its tubing net has water cooling. Flue gases are streaming through three passages of exchanging
surfaces: combustion chamber, first bundle of boiler flue exhaust and the second bundle of boiler
flue exhaust tubes. Boiler body is equipped with a pellet burner CPPL inv, accessories for
automatic burner cleaning, digital control regulation and wood pellet feeder CPPT. All mentioned
parts make one functional unit.
The upper boiler door enables the access to the first and second bundle of the boiler flue exhaust
tubes and their cleening. There is also free access to all other doors and openings when the boiler
has to be cleaned. The boiler is equipped with all necessary connections for the connection to the
central heating system.
IMPORTANT:
Connection of the boiler to the chimney and to the central heating system as well as the start-up
has to be performed by the authorized person licensed on behalf of Centrometal d.o.o.
company.
The CPPL burner is completely automatic and it works on EKO-CKS P boilers. It has an high power
centrifugal fan and it dev elops horizontal flame like traditional burners. All fire exposed
components are made of steel which is resistant to high temperatures.
The burner fluid dynamics permits an homogeneus mixture of fuel/combustive agent with an high
burning output so the burner can work with low air level, the same levels which are normally used
for liquid fuels The Archimedean screw grants the pellets supply.
The regulation can be all/nothing two staged or multistage, a programming system allows selection
of the type of regulation.
The fan speed allows to change the air quantity according to the burner power.
The fuel quantity changes according to the feed screw electrical pulses. On the burner there aren't
any mechanical devices or moving components. The ignition system is totally automatic and
reliable.
1.0. GENERAL
1.1. CM PELET SET DESCRIPTION
1.1.1. BURNER DESCRIPTION
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Technical instructions EKO-CKS P UNIT

TECHNICAL DATA AND DIMENSIONS OF CPPL BURNERS
MODEL POWER [kW]
MIN. MAX. FAN [W] ELECTRIC HEATER
[W]
FEEDER SCREW
[W] POWER SUPPLY
CPPL-200 inv
CPPL-300 inv
CPPL-350 inv
CPPL-600 inv
100
150
90
168
200
280
350
600
370
370
370
650
600
600
600
900
90
90
90
90
230V, 50 Hz
230V, 50 Hz
230V, 50 Hz
230V, 50 Hz
DIMENSIONS:
CPPL-200 inv, CPPL-300 inv, CPPL-350 inv
MODEL
CPPL-200 inv
CPPL-300 inv
CPPL-350 inv
391
471
501
306
381
381
440
440
440
440
440
440
236,5
285,5
315
180
180
180
80
80
80
570
570
570
150
150
150
351
396
496
130
312
135
253
312
312
150
195
195
255
330
330
350
440
440
277
352
352
25
25
25
11
11
11
M10
M10
M10
134
165
165
A B C D E F G H I L M N O P Q R S T W Z
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6Technical instructions EKO-CKS P UNIT

CPPL-600 inv
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Technical instructions EKO-CKS P UNIT

The pellets feed system is granted by a screw and it is composed by:
- Motor device with gearbox, with an high starting torque
- Cable with electrical connection with the connector
- Steel spiral
- Motor device support with gearbox
- Steel pipes
- Flexible pipes for connection of the screw/burner
- Clamping bands
DIMENSIONS:
MODEL
CPPT 200-350
CPPT 600
102
102
2075
2625
160
160
200
200
80
80
150
150
A B C D E F
1.1.2. FEEDER SCREW DESCRIPTION
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8Technical instructions EKO-CKS P UNIT

2.0. DELIVERY STATE
2.1. OBLIGATORY EQUIPMENT
2.2. ADDITIONAL EQUIPMENT
The basic boiler delivery (OO (basic equipment)) consists of:
- boiler with thermal insulation
- Cm Pelet-set 200-600, which includes:
- the pellet burner with preparation for burner air cleaning and pressure vessel (50 l for 140-320 kW, 2x50 l
for 430-560 kW).
- compressor Michelin for the pellet burner air cleaning. If there is own source of compressed air, the price
for 'Compressor Michelin' has to be excluded from the price calculation
- electrical enclosure with digital boiler controller and touch screen, which manages the boiler and burner
operation, burner air cleaning, feeding conveyor for pellet supply from the pellet tank (placed by the
boiler) into the burner, return flow protection by a 3 way mixing valve with actuator, accumulation tank
and a possible start of an alternative boiler.
- 1 boiler temperature sensor, 1 return flow sensor, 2 accumulation tank sensors, 1 external temperature
sensor
Note:
- the boiler EKO-CKS P Unit 499 and EKO-CKS P Unit 560 are always delivered with the cyclone and fan and
also with addition to regulation for the fan steering (CIK)
- backfire protection by rotary dosing valve (RSE) (available only in AC-K and AC+K configurations)
- CMNET - cascade manager
- CM-GSM - communication module
- CAL - alarm module
- CM2K - module for two heating circuits (max. 4xCM2K modules)
- CSK - room corrector (possible installation only with CM2K module)
- CSK-Touch - digital room corrector (possible installation only with CM2K module)
- CM WiFi-box - system for monitoring the boiler by PC, tablet or smartphone
- pellet feeding conveyor from the seasonal tank into the CentroPelet Box tank
- pellet feeding conveyor with mixer from the seasonal tank to the CentroPelet Box tank
- pellet silo and pellet feeding conveyor to CentroPelet Box tank near the boiler
- pellet feeding conveyor (CPPT- XX)
- pellet tank (CentroPelet Box) or feeding conveyor for pellet supply from the seasonal tank into the pellet
burner according to the Centrometal’s recommendation
- the boiler return flow protection by a 3-way mixing valve with actuator and boiler pump
- accumulation tank CAS or hydraulic crossover
- set of safety elements min/max boiler water pressure
Boiler configuration with additional equipment set:
- CIK (cyclone with a fan and addition to regulation)
- AC-K (automatic ash removal from the combustion chamber, automatic ash removal from the flue gas
chamber, automatic (pneumatic) cleaning of flue gas tubes of thermal protection exchanger without
compressor, DHW tank steering)
- AC+K (automatic ash removal from the combustion chamber, automatic ash removal from the flue gas
chamber, automatic (pneumatic) cleaning of flue gas tubes of thermal protection exchanger with
compressor, DHW tank steering), instead of 'Compressor Michelin' from basic delivery it has to be
installed 'Compressor Kaeser with compressor set' and the price for 'Compressor Michelin' has to be
excluded from the price calculation.
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Technical instructions EKO-CKS P UNIT

Always follow the most up-to-date local, municipal and building
regulations and codes.
i
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.
The boiler has to be put on the previously prepared concrete fundament which minimum height is
200-300 mm. The upper fundament surface has to be smooth and exactly horizontal.
The room has to be frost proof and adequately ventilated. The boiler has to be situated in order its
connection to the chimney can be performed correctly; its cleaning and handling should be convenient.
If there is planned an cyclone and fan connection, the boiler has to be situated to have all its parts easily
accessible. The casing has to be assembled after the boiler has been connected to the chimney and to
the central heating system, according to the instructions attached. Before connecting to the instalation
the boiler has to be put exactly in the horizontal position.
Hot water boiler EKO-CKS P UNIT can be fired with wood pellets (C1 by EN 303-5:2012; A1 by ISO
17225-2:2014).
FUEL CHARACTERISTICS
- heating value: >= 5 kWh/kg (18 MJ/kg)
- diameter: <= 6 mm
- max. moisture content: <= 12 %
- max. dust content: <= 1,5 %.
3.0. FUEL
4.0. ASSEMBLAGE OF THE BOILER
4.1. BOILER ROOM
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10 Technical instructions EKO-CKS P UNIT

Flammable items must not be placed on the boiler and within the
safety distances.
Minimal distances from the boiler room walls for the boiler
EKO-CKS P UNIT and pellet tank Centropelet box 2700
D
B
A
C
E
F
G
650
1000
300
300
900
550
500
140-180
A
B
C
D
E
F
G
230 280 320 430
650
1000
300
300
470
200
500
950
1000
300
300
600
150
615
950
1000
300
300
500
150
615
950
1200
300
300
500
150
800
499 560
950
1200
300
300
500
150
800
950
1200
300
300
500
150
1150
4.2. MINIMAL DISTANCES FROM THE BOILER ROOM WALLS
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Technical instructions EKO-CKS P UNIT

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.
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:
4.3. OPENING FOR FRESH AIR
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12 Technical instructions EKO-CKS P UNIT

A
B
X2
X2
With boiler is delivered PVC box which consist safety thermostat. PVC box (marked with „X2") must be
installed when are casing cover mounted on boiler. Place PVC box on upper casing cover side (A) and
fix it with four screws through factory prepared holes. Place boiler sensor and safety thermostat sensor
on common sensors tube which is placed below front casing cover (B).
Connect PVC box with junction box according to electrical schemes.
Tube for boiler
and safety
thermostat
sensor
5.0. SAFETY THERMOSTAT INSTALLATION
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Technical instructions EKO-CKS P UNIT

Parts needed for the burner installation are shown in Figure 1.
The burner shall be fixed with 6 screws M10x20 mm onto the extension flange which is installed on
the lower boiler door. The presostat (pressure switch) tube (3) is on one side fixed to the presostat on
the burner CPPL (2), and in the other side there is shallow pin (4) to connect the tube to the boiler
door. Shallow pin (4) shall be removed from the presostat tube (3)and tighten in the threaded hole
M5 (6) which is located on the control opening (5) on the lower boiler door (1). The presostat tube
(3) shall be shortened if necessary and put on shallow pin.
M10x20 mm
1
2
3
3
4
1
5
6
2
1Lower boiler door with extension for mountion
pellet burner
Pellet burner
Pressure pipe
Bolt
Visual control opening
Hole with thread M5
3
4
5
6
M10x20 mm
1
2
3
3
4
1
5
6
2
-
-
-
-
-
-
3
4
5
6
Figure 1.
Installation of equipment for wood pellet firing is shown in Figure 2. The feeder screw CPPT
(position 4) shall be inserted from the right side of the wood pellet tank CentroPelet box into
holders fixed on the lateral tank side. The wood pellet tank CentroPelet box (position 1), with
previously installed feeder screw CPPT shall be placed to the left side of the boiler EKO-CKS P
UNIT. One end of flexible tube for feeding of wood pellets (position 6) shall be placed on the
wood pellet feed screw CPPT (position 4) and fix with clamps (positin 5 ), and the other end of
flexible side shall be placed onto the burner CPPL (on the feeding tube position 6) to the cover of
bimetal thermostat and it shall also be fasten with a clamp (position 5) (detail A). Flexible tube for
feeding of wood pellets shall be as straight as possible between the feeder screw CPPT and CPPL
burner so that wood pellets can fall freely from feeder screw CPPT into CPPL burner (if wood
pellets remain in tube it is necessary to straighten the tube or shorten, if necessary). Compressor
(position 11) and pressure vessel (position 9) shall be connected with tube for connectiong air
compressor and pressure vessel (position 10). Pressure vessel (position 9) shall be connected
through a tube (position 8) to electro- magnetic valve (position 13) located on the right lateral side
of CPPL burner.
5.2. INSTALL EQUIPMENT FOR WOOD PELLET FIRING
5.1. INSTALL PELLET BURNER CPPL TO LOWER BOILER DOOR
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14 Technical instructions EKO-CKS P UNIT

Figure 2. Install equipment Detail A
4
5
6
12
Detail A
1
3
5
6
713
8
9
10
11
4
14
15
16 17
-
8Tube for connecting pressure vessel
and CPPL inv pellet burner
-
-
-
-
-
5
4
3
2
1
Junction box with boiler control unit and
touchscreen display
3
Pellet tank (CentroPelet box 2,7 m or similar)
Feeder screw CPPT 200, 200/350, 600
Clamps for fastening of flexible tube
for wood pellet feeding
-
6Flexible tube for wood pellet feeding
Boiler EKO-CKS P
-
-
9
10
Pressure vessel: 50l for CPPL 200,300,350 inv
2 x 50l for CPPL 600 inv
Tube for connecting air compressor and
pressure vessel
Air compressor
11 -
12 -Tube for connecting wood pellet feeding
to CPP pellet burner
-
7Pellet burner CPPL inv
-
13 Electro-magnetic valve
-
14 Automatic cleaning system of the heat exchanger's
flue gas tubes (passages) by air (pneumatic)
-
15 Ash box (for automatic ash removal system out of
the boiler combustion chamber - optional)
-
16 Electro-magnetic valve (only for CPPL 600 inv)
-
17 Tube for connecting pressure vessel and
CPPL inv pellet burner (only for CPPL 600 inv)
*
* Compressor is not delivered in configuration (AC-K)
****
** Additional equipment - option for order
**
2
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ROTARY DOSING VALVE INSTALLATION (RSE) (ADDITIONAL EQUIPMENT)
To install the rotary dosing valve, the original pellet supply pipe must be removed from the burner.
Then it is necessary to install a rotary dosing valve.
Important: use a seal left over from the original pellet supply pipe
Note: the rotary dosing valve flange is designed so that the dosing valve can be directed to the
side required (see figure).
ROTARY DOSING VALVE AS ADDITIONAL EQUIPMENT MUST BE
ORDER WHEN ORDERING A BOILER, BECAUSE TO ADJUST THE
ELECTRIC CABINET. IN CASE THAT THE BOILER IS STANDARDLY
DELIVERED WITHOUT PREPARATION FOR THE INSTALLATION OF A
ROTARY DOSING VALVE, IT IS NECESSARY TO CONTACT
C E N T R O M E TA L D . O . O . T O S E E T H E P O S S I B I L I T Y O F
UPGRADING THE ELECTRIC CABINET.
360°
360°
the "knees" can be turned
to either side
Prior to any work on the boiler, the el. power must be switched OFF
on the device to disconnect all poles of the power supply.
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After the rotary valve is properly attached to the burner, it is necessary to connect it to the electrical
cabinet in the intended place on the terminal block. An electrical wiring diagram is supplied with the
boiler, indicating the connection point for the rotary valve (symbol x24). Then it is necessary to turn
on the rotary valve (Dispenser) in the boiler control under the PIN for the installer and check the
correctness of the operation using a manual test.
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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 of the capacity of the boiler and existing of cyclone with fan. The flue gas tube for
connecting the boiler and the chimney has to have a thermal insulation made out of 30-50 mm
thick stone wool. Flue gas tube must be installed under angle +0° to 45°. In order to unable
condensate to enter the boiler, the flue gas tube has to be situated 10 mm deaper inside the
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, but the damper on the flue exhaust has to be positioned
according to the chimney underpressure (see technical data regarding the chimney pressure for
each type of the boiler).
Diagram for chimney selection (for boiler without cyclone and fan)
5 10 15 20 25
230
500
550
140
180
320
430
6
270
50
45
40
35
30
Useful chimney height (m)
Boiler nominal output (kW)
- BOILER HEAT OUTPUT - 180 kW
- FUEL - WOOD PELLET
- REQUIRED USABLE CHIMNEY HEIGHT - H = 10 m
(or more if that laws require)
- REQUIRED CHIMNEY LIGHT DIAMETER - 30 cm
- Usable chimney height
- chimney height from connection spot of smoke pipe to
the chimney top.
- Light chimney diameter
- chimney inner diameter.
An example of selection of a chimney:
(for boiler without cyclone and fan)
CHIMNEY SELECTION FOR BOILER WITH CYCLONE AND FAN
CHIMNEY SELECTION FOR BOILER WITHOUT CYCLONE AND FAN
Required max. distance between boiler and chimney is 700 mm and minimal is 300 mm. Flue gas
tube must have inner diameter fi 300 mm for boiler power 140-320 kW and fi 350 mm for power
430 kW with max. two elbows.
Required max. distance between boiler and chimney is 5 m and minimal is 300 mm with max. four
elbows.
Boiler
140-230
280-320
430
499
560
Inner flue gas tube diameter
250 mm
300 mm
300 mm
300 mm
300 mm
Inner chimney diameter
300 mm
300 mm
350 mm
400 mm
400 mm
Usable chimney height
4,5 - 40 m
4,5 - 40 m
4,5 - 40 m
4,5 - 40 m
4,5 - 40 m
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.
6.0. CONNECTION TO THE CHIMNEY
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All installation works must be made in accordance with valid national and European standards. Boiler
EKO-CKS P UNIT 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. Connecting boiler to central heating system must be performed by EN
12828:2012+A1:2014 norm.
Boiler EKO-CKS P UNIT can be installed on following ways:
1) through buffer tank (CAS) (minimum volume of buffer tank is 12 l/kW)
2) through hydraulic crossover
Boiler return line protection (for low temperature) must be perfomed by 3-way mixing valve with
actuator (connected to boiler control unit). Also, it must be installed adequately dimensioned boiler
pump (connected to boiler control unit). Opening speed of 3-way mixing valve for boiler return line
protection must be 30 seconds or maximum 60 seconds.
BOILER SHOULD ALWAYS BE CONNECTED TO CENTRAL HEATING
SYSTEM BY CONNECTORS/FLANGE, NEVER BY WELDING!
7.1. FILLING THE SYSTEM
Boiler and entire central heating system must be filled with water quality accordin to HRN M.E2011
- table 4. The system has to be airvented in order the water can circulate normaly.
DN 25 (G 1")
DN 25 (G 1")
DN 32 (G 5/4")
DN 32 (G 5/4")
DN 40 (G 3/2")
DN 40 (G 3/2")
DN 40 (G 3/2")
DN 40 (G 3/2")
BOILER VALVE SIZE
EKO-CKS P UNIT 140
EKO-CKS P UNIT 180
EKO-CKS P UNIT 230
EKO-CKS P UNIT 280
EKO-CKS P UNIT 320
EKO-CKS P UNIT 430
EKO-CKS P UNIT 499
EKO-CKS P UNIT 560
MINIMAL DIMENSIONS FOR BOILER SAFETY VALVE MARKED H BY EN 12828:2012 NORM
7.0. BOILER INSTALLATION TO CENTRAL HEATING SYSTEM
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E
A
C
D
FG
B
M
H
I
Accumulation tank or
hydraulic crossover
Figure 3. General connection scheme of the EKO-CKS P UNIT to the closed heating system
A - Boiler flow
B - Boiler return
C - Connection line flow-return
D - Boiler 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 PLAN!
i
Hydraulic connection scheme must be preformed in a manner as
shown in this scheme.
Other parts of installation which is not shown in this scheme
must be preformed accordance to norm EN 12828:2012+A1:2014.
In closed heating system (as in example shown in Figure 3.) it is obligatory to build in certified
safety valve with opening pressure of max. 3 bar and a closed expansion vessel. Safety valve and
expansion vessel must be built in accordance with professional rules and any valve must not be
located between safety valve and expansion vessel and boiler. The safety valve need to be chosen
according to the norms EN 12828:2012+A1:2014.
7.2. BOILER INSTALLATION TO CLOSED HEATING SYSTEM
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