Kospel EKCO.L2N User manual

1
KOSPEL S.A. KOSZALIN ul. Olchowa 1
SERVICE
MANUAL
EKCO.L2N
EKCO.L2Np
EKCO.L2NF
14.03.2016

Service manual EKCO.L2N
2
Contens
1. External view of boilers. 3
Pic.1. Externel view. 3
1.1 External view - open case. 4
Pic.2. Boiler with open case (ow sensor Kospel - date of production before 29-03-2011). 4
Pic.3. Boiler with open case (ow sensor HubaControl - date of production after 29-03-2011). 5
2. Construction of boilers. 6
Pic.4. Construction of boilers (ow sensor Kospel - date of production before 29-03-2011). 6
Pic.5. Construction of boilers(ow sensor HubaControl - date of production after 29-03-2011). 7
2.1. Construction of boilers - water part. 8
Pic.6. Hydraulic connection (ow sensor Kospel) - date of production before 29-03-2011. 8
Pic.7. Hydraulic connection (ow sensor Huba Control) - date of production after 29-03-2011. 9
2.2. Construction of boilers - view of expansion vessel. 10
Pic.8. View of expansion vessel (ow sensor Kospel) - date of production before 29-03-2011. 10
Pic.9. View of expansion vessel (ow sensor Huba Control) - date of production after 29-03-2011. 11
2.3. Assembly of ow sensor. 12
Pic.10. Assembly of ow sensor Kospel - date of production before 29-03-2011. 12
Pic.11. Assembly of ow sensor Huba Control - date of production after 29-03-2011. 13
3. Control panel PSK.P5. 14
Pic.12. Description of control panel. 14
3.a. Manual instruction. 14
3.b. Description. 14
3.c. C.H temperature settings. 15
3.d. D.H.W. cylinder settings. 15
3.e. Service menu 16
3.1. Connecting of external devices to the control panel PSK.P5. 17
Pic.13. Connecting of external devices. 17
4. Heating box. 18
Pic.14. Heating box. 18
Tab.1. Electric parameters of heating box. 18
5.1. Power board - connection 400V 3N~ 12-24 kW (ver I). 19
Pic.15. Connection of power board 12-24 kW 3N~. 19
5.2. Power board - connection 400V 3N~ 4-8 kW (ver II). 20
Pic.16. Connection of power board 4-8 kW 3N~. 20
5.3. Power board - connection 230V N~ 4-8 kW (ver III) ver.1. 21
Pic.17. Connection of power board 4-8 kW N~ ver.1 (date of production before 17-11-2010). 21
5.4. Power board - universal connection ver.2. 22
Pic.18. Connection of power board 4-24 kW 230/400V~ ver.2 (date of production after 17-11-2010). 22
6.1. Wiring diagram - 400V 3N~ 12-24kW (ver. I). 23
Pic.19. Electric diagram 12-24 kW 3N~. 23
6.2. Wiring diagram - 400V 3N~ 4-8kW (ver. II). 24
Pic.20. Electric diagram 4-8 kW 3N~. 24
6.3. Wiring diagram - 230V N~ 4-8kW (ver. III) ver.1. 25
Pic.21. Wiring diagram 4-8 kW N~ ver.1 (date of production before 17-11-2010). 25
6.4. Universal electric diagram 230/400V~ ver.2. 26
Pic.22. Wiring diagram 4-14,4 kW 230/400V~ ver.2 (date of production before 17-11-2010). 26
7. Spare parts list. 27
Tab.2. Parts list. 27
8.1. Power board ver. 2b - connection 400V 3N~ 12-24 kW. 28
Pic.23. Connection of power board ver. 2b 400V 3N~ 12-24 kW. 28
8.2. Power board ver. 2b - connection 230V N~ / 400V 3N~ (4-8 kW). 29
Pic.24. Connection of power board ver. 2b 230V N~ / 400V 3N~ (4-8 kW). 29

3
5
01181
3
01179
4
01180
17
01182
1. Exterior view of boilers.
Pic.1. Exterior view.
14
01168
Part number in table of parts
Service code

Service manual EKCO.L2N
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1.1. Exterior view - open case.
39
3
01179
4
01180
Pic.2. Boiler with open case (ow sensor Kospel) - date of production before 29-03-2011.

5
Pic.3. Boiler with open case (ow sensor Huba Control) - date of production after 29-03-2011.
39
3
01179
4
01180

Service manual EKCO.L2N
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Pic.4. Construction of boilers (ow sensor Kospel) - date of production before 29-03-2011.
2. Construction of boilers.
25 - 00001
35 - 00253
27 - 00516 (100 C)
00489 (
o
75 C)
o
21 - 00791
Tout
20 - 00790
Tin
17 - 01182
9-01174
1-T
a18ble on page
16 - 01183
37 - 00882
37 - 00882
37 - 00882
37 - 00882
37 - 00882
37 - 00882
32
27 -

7
Pic.5. Construction of boilers (ow sensor Huba Control) - date of production after 29-03-2011.
25-00001
35-00253
27-00516 (100°C)
00489 (75°C)27 -
20-00790
Tin
17-01182
9-01174
1-Table page 18
16-01183
37-00882
37-00882
37-00882
37-00882
37-00882
32
34-01270 15-01331
Tout
21-00791
Tout
22-01541 after 11-08-2014
Flow sensor DN15 (01339) has
mounted since 13-07-2011.

Service manual EKCO.L2N
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2.1. Construction of boilers - hydraulic part.
Pic.6. Hydraulic connection (ow sensor Kospel) - date of production before 29-03-2011.
28 - Table page 27
38-00647
8-01173
Tout
Tin
38-00647
37 - 00882
10 - 01175
37-00882
30 - 01294
37-00882
12 - 01177
38 - 00647
37-00882
23-01194 24-01195
37 - 00882
11-01176
36-00255
37-00882
9-0
1174
26-00144
36-00255
19 - 01229 20 - 00790 16 - 01183 13-01178 21 - 00791
37-00882 37 - 00882
37 - 00882
37 - 00882
36-00255
36 - 00255
37-00882 37-00882
32

9
Pic.7. Hydraulic connection (ow sensor Huba Control) - date of production after 29-03-2011.
28-Table page 27
38-00647
7-01332
Tin
10-01175
37-00882
30-01294
37-00882
23-01194 24-01195
37-00882
11-01176
9-01174
26-00144
36-00255
18-01212 lub 01339 (after 13-07-2011)
20-00790 22-01541 after 11-08-2014
34-01270
37-00882 37-00882
32
16-01183
37 - 00882
34 - 01270
15 - 01331
34-01270
36-00255
38-00647
37-00882
37-00882
38-00647
after 13-07-2011 mounted in flow sensor. 01339 Tout
Tout
21-00791

Service manual EKCO.L2N
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2.2. Construction of boilers - view of expansion vessel.
14-00853
13-01187
37-00882
36-00255
37-00882
6
32 31
Pic.8. View of expansion vessel (ow sensor Kospel) - date of production before 29-03-2011.

11
Pic.9. View of expansion vessel (ow sensor Huba Control) - date of production after 29-03-2011.
14-00853
37-00882
6
32 18

Service manual EKCO.L2N
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2.3. Assembly of ow sensor
31
Rys.10. Assembly of ow sensor HubaControl (date of production after 29-03-2011.
Attention! The ow sensor should be mounted as shown below. Set the type of sensor in
the service menu,.
Incorrect installation of the ow sensor, and the incorrect setting in the service menu can
result to incorrect measurement of ow and malfunction of the boiler

13
Pic.11. Assamble of ow sensor DN15 200.915101 (18) - date of production after 29-03-2011.
Clips
Attention! The ow sensor should be mounted as shown below. Set the type of sensor in
the service menu,.
Incorrect installation of the ow sensor, and the incorrect setting in the service menu can
result to incorrect measurement of ow and malfunction of the boiler
Attention! On 13-07-2011 was change in build construction. Flow sensor HubaControl DN15
200.915101 (18) was replaced with ow sensor HubaControl DN15 200.715111N (44). This
change led to remove return temperature sensor (20) and introduction an another wire ()
from ow sensor to control panel (17).

Service manual EKCO.L2N
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3. Control panel PSK.P5.
NA
RP Tzas
Q
Twej
Twyj Ciś ZM
Pompa ZTD
NL
NL
NLALB
Zaś
kW
bar
°C
l/min
11 6 7
1
2
Tzas 34 5
9
8
QTwej Twyj Ciś ZM Zaś Pompa
ZTD
NA RP
10
Pic.12. Description of control panel.
3.a. User manual of control panel.
To switch on and o boiler press and hold . When the control panel is switched to "stand-by"
mode all indicators are o (only F indicator ickers).
Aer power supply connecon to boiler, digital display shows soware version and value of power. Next,
boiler will start working with set parameters and required operang mode.
The digital display shows the temperature of medium (for central heang). You can check out the following
working parameters by pressing the buon . A display shows ( in sequence): medium temp. seng (D and
M indicators are on), inlet temp. (D and K indicators are on), outlet temp. (D and L indicators are on), medium
ow rate through the boiler (B indicator is on), installaon pressure (A indicator is on), power with which the
boiler currently heats (C indicator is on).
3.b. Descripon of control panel..
1 - ( ) - indicator of room thermostat (RP), superior devices (NA) and heang acvity.
- o- the required temperature has been reached or RP entry is open (boiler doesn't heat)
- on- room thermostat allows the boiler to heat.
- ickers- master appliance doesn't allow to heat (NA entry is open)
2 - ( ) - indicator of pump and ow acvity.
- o - pump is inacve.
- on- pump is acve.
- ickers- pump is lack of ow or insucient ow rate of medium (less than 5l/min), a heang
elements are disabled.

15
3 - () - inacve indicator.
4 - ( ) - inacve indicator.
5 - ( ) - Return temperature indicator.
- ickers- sensor failure.
6 - ( ) - ow temperature indicator.
- ickers- sensor failure.
7 - ( ) - Indicator of boiler acvity (for central heang)
- red light- a boiler heats the medium.
- green light- proper temp. has been reached.
- o- boiler operates in summer mode.
8 - ( ) - Indicator of boiler acvity (for hot water cylinder)
- red light- , boiler is heang DHW.
- green light, proper. temp. has been reached
- o or ickers, DHW mode is disabled or me-blocked
9 - Control buons.
10 - stand-by indicator
- ickers- boiler operates in stand-by mode
11 - 7-segment display.
kW, °C,bar,l/min - Indicators showing which parameter is displayed on digital display (in order boiler power,
temperature, system pressure, ow of the medium).
NA - free-voltage entry, master appliance connection point, Work without superior device need use a jumper.
RP - free-voltage entry, room thermostat connection point. Work without room thermostat need to use
a jumper.
Tzas - DHW temperature sensor or DHW thermostat connection. Set type of sensor in service menu or take off
without connecting.
Q - flow sensor connection point.
Tin - return temperature connection point.
Tout - flow temperature connection point.
Ciś - pressure sensor connection point.
ZM - power board connection point.
Zaś - Supply connection from power board (N - blue, L - red)
Pompa - circulate pump connection (N - blue, L - red)
ZTD - three-way valve connection Honeywell VC6012(work with DHW cylinder) (N – blue, LA- red, LB- brown)
3.c. Temperature sengs (central heang).
Press unl only indicator is illuminated. Press or unl the desired temperature seng is
achieved. To switch to the main view press buon. A controller will switch over to the main view, if you don't
use a buons for 1 min.
3.d. DHW cylinder settings.
Settings of water temperature in the DHW system with thermostat are set on thermostat.
We can set water temperature on boiler settings only on DHW system with sensor WE009

Service manual EKCO.L2N
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Press unl only indicator is illuminated. The LED display shows temperature of water in DHW
cylinder. Press or unl the desired temperature seng is achieved. Min. temperature is 30 C. Max
temperature depends on the return temperature and is less than for 5 degrees.Set “0” value to disable heang
of DHW cylinder ( indicator is blinking) .
Press once buon when control panel shows overall view to set summer mode.
3.e. Service menu:
For service sengs switch the control panel to standby mode (hold buon for 3 seconds) then hold
the and press . To select parameter press , buons or enable you to change the value,
consecuvely:
1. Boiler power (value on digital display 11). Value of this parameter must be same like a power of heang box.
2. Working mode of pump
„Pa” – automac work mode
„Pr” – manual, connous work mode
3.. Number of acve heang elements
„G3” – three heang elements
„G2” – two heang elements
„G1” – one heang element
4. Boiler work mode
„no” – normal mode for central heang (temperature range 20 – 85°C)
„Po” –oor heang mode (temperature range 20 – 60°C)
5. Load temperature of DHW cylinder (value on digital display 11, indicators °C and are illuminated)
- temperature range 50 – 85°C.
- Value "0" - DHW cylinder disable
Set “0” when boiler works without DHW cylinder.
6.Type of DHW sensor.
 – temperature sensor NTC (WE-019)
tE – contact thermostat
7. Pressure lock funcon (bar indicator on)
„0” – inacve funcon
„1” - acve funcon - heat and pump will be blocked below pressure 0,6 bar
8. Boiler work mode
„A0” – single mode
„A1” do „A9” – cascade mode ( Each boiler must have a dierent address „A”
9. Type of ow sensor (l/min indicator on)
„1” - Flow sensor HubaControl
„2” - Flow sensor Kospel
10. Work-me counter (value displayed on indicator 11) .
Counter display shows gures (without leading zeros) starng from the most important (interrupt every 1/2
second), the display will turn o (for 2 seconds) when the least important gure is shown. Example if display
displayed number in order 1..2..9........1..2..9. That mean boiler has been working for 129 hours.
Press and hold the @ buon to exit and record the sengs .

17
3.1. Connecting of external devices to the control panel PSK.P5.
Pic.13. Connecting of external devices.
NA
RP Tzas
Q
Twej
Twyj Ciś ZM
Pompa ZTD
NL
NL
NLALB
Zaś
NTC
Sensor
Thermostat
PROG
0612 18 24
0
c
Ni Po Wt Śr Cz Pt So
COM NO NC
Auraton 2005
lub
NO COM
BK (NC)
LA
LB ZTD
N
Master
device
HONEYWELL VC6012
Brown
Blue
Red
WE-019
01215

Service manual EKCO.L2N
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4. Heating box.
Pic.14.Heating box.
Front view Side view
To p view
G/”38
Automatic air vent
G/”34
Supply connection
G3/ ”4
return connection
H.e. 1
H.e. 2
H.e. 3
Cappilary pipe WT-3
Table 1. Electric parameters of heating box.
BOILER TYPE
SERVICE CODE
HEATING BOX TYPE
Amount of heating
elements
Rel
Heating elements
resistance[Ohm]
If
Current passing
through the heating
element[A]
U
Working voltage of
the heating elements
[V]
EKCO.L2NF-4 01184 wyk.001 3 37,1 ÷ 40,9 5,6 ÷ 6,2
230
EKCO.L2NF-6 01186 wyk.003 3 24,8 ÷ 28,6 8,0 ÷ 9,3
EKCO.L2N-4 01184 wyk.001 3 37,1 ÷ 40,9 5,6 ÷ 6,2
EKCO.L2N-6 01186 wyk.003 3 24,8 ÷ 28,6 8,0 ÷ 9,3
EKCO.L2N-8 01642 wyk.010 3 18,6 ÷ 20,4 11,3 ÷ 12,4
EKCO.L2N-12 01184 wyk.001 3 37,1 ÷ 40,9 9,8 ÷ 10,8
400
EKCO.L2N-15 01185 wyk.002 3 29,7 ÷ 32,7 12,2 ÷ 13,5
EkCO.L2N-18 01186 wyk.003 3 24,8 ÷ 28,6 14,0 ÷ 16,1
EKCO.LN2-21 01187 wyk.004 3 21,2 ÷ 23,4 17,1 ÷ 18,9
EKCO.L2N-24 01188 copper 6 18,6 ÷ 20,4 19,6 ÷ 21,5

19
5.1. Power board - connection 400V 3N~ 12-24 kW (wyk I).
Pic.15. Power board connection 12-24 kW 3N~.
Power supply 400V 3N~
UVWN
Ground
NA
RP
Tzas Q Twej
Twyj
Ciś ZM
Pompa
ZTD
NL
NL
NLALB
Zaś
H.e. 1
H.e. 2
H.e. 3
red
blue
L3
G3
L2
G2
L1
G1N

Service manual EKCO.L2N
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5.2. Power board - connection 400V 3N~ 4-8 kW (wyk II).
Pic.16. Power board connection 4-8 kW 3N~.
Power supply 400V 3N~
UVWN
Ground
NA
RP Tzas Q Twej Twyj Ciś ZM
Pompa ZTD
NL
NL
NLALB
Zaś
H.e. 1
H.e. 2
H.e. 3
red
blue
L3
G3
L2
G2
L1
G1N