Kospel EKCO.T User manual

1
KOSPEL S.A. KOSZALIN ul. Olchowa 1
SERVICE
MANUAL
EKCO.T
ECKO.TM
17.11.2020

Service manual EKCO.T/EKCO.TM
2
Table of contents
1. Exterior view of boilers. 4
Pic.1a EKCO.T boiler 4
Pic.1bEKCO.TM boiler 5
2. Construction of boilers. 6
Pic.2a Construction of the boiler EKCO.T 6
Pic.2b Construction of the boiler EKCO.TM 7
3. Control panel PSK.P4 EKCO.T 8
Pic.3a Front view of the control panel. 8
Pic.3b Back view of the control panel. 8
3.1 Advanced settings PSK.P4 ECKO.T 9
3.2 Failure modes of PSK.P4 front panel. 9
Tab.1 Failures 10
4. Control panel PSK.M2 EKCO.TM 11
Pic.4a Front view of the control panel 11
Pic.4b Back view of the control panel. 11
4.1 Control panel PSK.M2 EKCO.TM - extended menu 12
Tab.2 Extended menu 12
4.2 Failure modes of PSK.P4 control panel. 13
Tab.3 Failures 13
5. ZIO-23 board EKCO.T 14
Pic.5 Description of ZIO-23 14
6. Connection of control panel PSK.P4 and ZIO-23 board. 15
Pic .6 Connection of control panel PSK.P4 15
7. ZIO-24 board EKCO.TM 16
Pic.7 Description of ZIO-24 board 16
8. Connection of control panel PSK.M2 and ZIO-24 board. 17
Pic.8 ZIO-24 board connection 17
9. Heating box 18
Pic.9 Heating box 18
Tab.4 Electric parameters of heating box. 18
10. Connection diagram of heating box. 19
Pic.10 Connection diagram of heating box. 19

3
11. DHW tank connection 20
Pic.11a Connection diagram for the DHW tank (EKCO.T) 20
Pic.11b Connection diagram for the DHW tank (EKCO.TM) 20
12. Cascade connection. 21
Pic.12 An exemplary diagram of the heating system. Boilers supply the heating circuits directly 21
Pic.13 An exemplary diagram of the heating system. Boilers supply the hydraulic clutch. 21
Pic.14 Additional electrical connection for boilers in cascade. 22
13. Wiring diagram 23
Pic.15 Wiring diagram. 23
14. Pump Grundfos UPM3 Flex AS 24
Pic.16. De-block the pump. 24
Tab. 5. Settings view 24
Tab. 6. Alarm status. 24
14.1 Pump Wilo Yonos Para 25
Pic.17. Settings via operating knob 25
14.2 Pump Wilo Yonos Para - alarm status 26
Tab.7 Alarm status 26
15. Spare parts list. 27
Tab.8 Parts list 27
16. Technical data 28
Tab.9 Technical data 28

Service manual EKCO.T/EKCO.TM
4
1. Exterior view of boilers.
Pic.1a EKCO.T boiler
3
01205
17
01219
23
00035
32
4
01214


5
Pic.1b EKCO.TM boiler
5
01216
19
01220
23
00035
32
6
01217

Service manual EKCO.T/EKCO.TM
6
2. Construction of boilers.




 !"!

#"#"""""




Pic.2a Construction of the boiler EKCO.T

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Pic.2bConstruction of the boiler EKCO.TM





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!
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
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
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"
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
! & "'
 
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Service manual EKCO.T/EKCO.TM
8
3. Control panel PSK.P4 EKCO.T
 !
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
0
Pic.3a Front view of the control panel.
Pic.3bBack view of the control panel.

9
3.1 Advanced settings PSK.P4 ECKO.T
Advanced settings.
For advanced settings switch the control panel to standby mode (press and hold button for 3 seconds) then press and hold
button, and press shortly. To select parameter press or buttons enable you to change the value:
- working mode of pump – PA (automatic), Pr (manual – continuous duty of pump),
- max. number of active heating elements (settings is blocked)
- Operating characteristic of boiler:
tOPUFNQFSBUVSFDPOUSPMCFUXFFOo¡$t1PUFNQFSBUVSFDPOUSPMCFUXFFOo¡$DPPQFSBUJPOXJUI%)8$ZMJOEFSJTOPUBWBJMBCMF- the way of display the outlet temperature of medium when the boiler works in winter mode.
tUPoEJTQMBZJOHUIFPVUMFUUFNQFSBUVSFGSPNUIFCPJMFSPOMZtUPoEJTQMBZJOHUIFPVUMFUUFNQFSBUVSFGSPNUIFCPJMFSBOEGSPNMFGUBOESJHIUIFBUJOHCPY- operation in cascade connection:
tSJOEFQFOEFOUCPJMFSPQFSBUJPOUIFCPJMFSJTOPUSFDPHOJTFECZNBTUFSTFOTPStSDBTDBEFPQFSBUJPO- number of boiler that works in cascade. This parameter can only be changed when the boiler is set up to work in cascade.
t"YYoOVNCFSPGCPJMFSJODBTDBEF- temperature of medium which feed a DHW Cylinder (starting the DHW mode). This mode can be activated by setting the
UFNQFSBUVSFPGNFEJVNJOUIFSBOHFCFUXFFO¡$4FUUJOHBU¡$XJMMTXJUDIPòUIF%)8NPEF- power of heating box (I indicator is on),
- maximum boiler power during the cylinder feeding (A, I indicators are on)
Press and hold button to exit and save the settings.

Service manual EKCO.T/EKCO.TM
10
Tab.1 Failures
Symptoms Reason Operation
Control panel
JOEJDBUPSTBSFPòPower supply failure.
Check the mains and the main fuses.
$IFDLUIF85UFNQFSBUVSFDVUPòReplace the control panel.
indicator "2" is blinking.
The ow value is„0” or is to low.
(below value of 12 l/min)
Heating is blocked.
Check the pump fuse on ZIO23 board.
Air lock in the heating system, solve the problem.
Deaerate the pump and the heating system.
Circulating pump is blocked.
Circulating pump is blocked. Make a manual pump
run. Use the screw to rotate the rotor.
Replace pump.
Flow sensor failure. Replace ow sensor.
Room thermostat start heating
and the "3" indicator on the
DPOUSPMQBOFMJTOPUPòThe room thermostat wiring connection
failure. Check the room thermostat wiring connection.
Room thermostat failure. Replace room thermostat.
ZIO 23 failure. Replace ZIO 23 board.
The "1" indicator is on
The boiler is heating only central heating
The three-way valve failure Check the servo. Replace the servo of valve
ZIO 23 failure Replace ZIO 23 board
DHW temperature is too low.
The boiler is heating only the heating
system.
5IFJOEJDBUPSJTPòThe DHWT thermostat or DHWT electronic
Sensor (DS 1820) failure
Replace DHWT thermostat or electronic sensor
(DS 1820)
ZIO 23 failure Replace ZIO 23 board
Too low DHWT temperature settings
Set the higher temperature on the DHWT
thermostat or rise the DHWT temperature on the
control panel (for the electronic sensor DS 1820)
The supply temperature is too low Heating box failure. Check or replace heating box.
The NA connector is opened by the
superior device.
The "3" indicator does not blink
RP connector opened Check the room thermostat
Control panel failure PSK.P4 Replace front panel
Control panel indicators
are blinking or temperature indicator is
blinking or the
return or supply temperature
JOEJDBUPSJTTIPXJOH¡$Return or supply temperature sensor.
Use the right arrow to view the return inlet and
ow outlet temperature. If the„E” symbol or 99 is
displayed replace the required sensor.
(Nominal resistance of the temperature sensor
LȰBU¡$Control panel failure Replace the control panel PSK.P4
3.2 Failure modes of PSK.P4 front panel.

11
4. Control panel PSK.M2 EKCO.TM




Pic.4a Front view of the control panel
Pic.4b Back view of the control panel.
1. Display
2. Buttons
3. ZIO-24 connection point
4. Cascade connection socket
5. ZIO-24 connection point
6. Supply temperature sensor connection point (left heating box)
7. Return temperature sensor connection point
8. Supply temperature sensor connection point (right heating box)
9. Flow sensor connection point

Service manual EKCO.T/EKCO.TM
12
4.1 Control panel PSK.M2 EKCO.TM - extended menu.
! " # $ % & ' " ( " ) ! # ! ( * + , - . / 0 1 , / 2 0 + 3 4 5 5 , 6 7 , 8 4 5
9
0 : 8 5 , / ; 0 , 8 7 : < + = + 8 0 -
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+ = + 8 0 -
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g
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h h
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 £
 ¤
R Z U [ ] U Y ] V U W c Y Z T U Z W _ Y e
 | ¥
¤
R Z U [ ] U Y ] V U W c \ S Z W S Y e
¦ N §
¤ ¨
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 £ [ V R v S Y _ ` ^ a Z

S v _ U a S Y U [ ] Z ^ ] Z T S ] _ [ [ S ] W U _ [ g g
M N §  µ ¶ M N §  · ¶
M N §  
W \ Y S S T U s U W ] _ T S W _ S [ W S Y n x y W S [ T S T o S [ V r b
L M  ¸ _ V W a S W v _ U a S Y W S R X S Y Z W V Y S c ¹ Q º \ S Z W U [ s e ~ h ~ h
L

| » ¼   
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 
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U ` t _ V Z X X a t à _ ^ X S a W S R X S Y Z W V Y S ^ S [ ^ _ Y
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g
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g
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L M ·  §
Ä  ®    ¼   
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¨
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_ X S Y Z W U _ [ b
È [ W \ S ] Z ^ S _ ` W \ S W \ Y S S  q Z t

Z a

S _ V W a S W _ ^ ] U a a Z W U _ [ c
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Z a
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S _ X S [ ^ _ Y ] a _ ^ S ^ W _ _ É V U ] Ê e Z [ T
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
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h h
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¦

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 N M
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X Y _ s Y Z R b
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
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
Z a V S _ `

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 l ´ Ï

Z a V S _ ` g Í T U ^ X a Z t q U W \ _ V W P t Y U a a U ] a S W W S Y ^ 
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
Í P t Y U a a U ] a S W W S Y ^ T U ^ X a Z t
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
S W \ S \ S Z W U [ s ] V Y
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· L M N
    ¼       À   ¿  ½  ©  ¾    
¨
¼     ©   ½  
¨
   ¾  ½       ®         ® Ð  Ñ Ò Ó Ô À   ¿ Õ  Å Ö



U S q n _ [ r
The last page asks, if you want to return to factory settings. If you enter„TAK”, all settings (except for the heating box power) will return
to the standard value. Some of the factory settings e.g.„3F_e”, after completing this function, may be not suitable for this particular
version of the boiler or installation system. Please maintain cautious while using this function. When you save your changes, the
controller will reset automatically.
Extended Menu settings can be changed by qualied person only. To edit „Extended Menu”go to„Extended Menu” code page
and enter the 3 digit code. To enter the code press or and
. Standard factory preset code is„000” or „001”.
Tab.2 Extended menu

13
4.2 Failure modes of PSK.P4 control panel.
Tab.3 Failures
"Faults”display view shows possible failures: ow failure, outdoor/room temperature sensor failure, inlet outlet boiler sensor
failure. The controller enables failure detection and identication (short circuit or sensor disconnection/ missing).
Symptoms Reason Operation
Display doesn't work. Power supply failure.
Check the mains and the main fuses.
$IFDLUIF85UFNQFSBUVSFDVUPòReplace the control panel.
Display shows ow failure
The ow value is„0” or is to low.
(below value of 12 l/min)
Heating is blocked.
Air lock in the heating system, solve the problem.
Deaerate the pump and the heating system.
Circulating pump is blocked.
Circulating pump is blocked. Make a manual pump
run. Use the screw to rotate the rotor.
Replace pump.
Flow sensor failure. Replace ow sensor.
The supply temperature is too low. Heating box failure. Check or replace heating box.
"Faults” display view shows possible failures:
ow failure, outdoor/room temperature
sensor failure, inlet /outlet
boiler sensor failure. The controller enables
failure detection and identication
(short circuit or sensor disconnection/
missing).
Sensor failure
a)„Tzew-brak” or„ Tpok-brak” The sensor is not reporting. Check connection between controller and sensor.
Replace temperature sensor
b)„Tzew zwarcie” or „Tpok zwarcie”
Short circuit on the connection between
controller and sensor.. Check connection between controller and sensor.
The sensor is inversely connected. Check the polarity of the sensor.
Failure of return or supply temperature
sensor. Sensors failure. $IFDLUIFTFOTPSSFTJTUBODFLȰBU¡$JGdamaged, replace the sensor. If the sensors are OK,
replace the control panel
PSK.M2.

Service manual EKCO.T/EKCO.TM
14
5. ZIO-23 board EKCO.T
Pic.5 Description of ZIO-23 board.





Tzas – connection point of DHWT water electronic temperature sensor DS-1820
WZ – connection point of DHWT thermostat
RP – room thermostat connection point (or jumper)
NA - master appliance connection point (or jumper)
ZTD – connection point of three-way valve
ZM – power module
I2C - PSK.P4 cable
X.NA - PSK.P4 cable
F1 - 1 A fuse (pump protection)
D-S - control panel communication indicator
D-Z - DHW tank heating indicator
D-P - pump operation indicator

15
6. Connection of control panel PSK.P4 and ZIO-23 board.




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
'&()*
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


 ! !


"+!""
Pic .6 Connection of control panel PSK.P4

Service manual EKCO.T/EKCO.TM
16
7. ZIO-24 board EKCO.TM
Pic.7 Description of ZIO-24 board







 !'"&#"$% & " '' % (  !! $ ( #
1 - (NA) master appliance connection point (or jumper)
2 - (Tpok) room temperature sensor connection point
3 - (Tzew) outside temperature sensor connection point
4 - (Tco2) second heating circuit temperature sensor connection point
5 - (Tzas) DHW Cylinder temperature sensor connection point
6 - (WZ) connection point of DHWT thermostat
7 - (RP) device for night or antifreeze work mode
8 - DHW tank heating indicator
9 - RP input short-circuit indicator
10 - (ZTM) three way mixing valve (under-oor heating or second heating circuit supply connection
11 - (POMPA 2) second circuit pump supply connection
12 - (POMPA CWU) DHW pump supply connection
13 - (ZAS) three-way switching valve (DHW Cylinder) supply connection
14 - (POMPA) C.H pump supply connection
15 - ZIO-24 board supply connection
16 - (ZM) power boards connection point
17 - pump operation indicator
18 - 230 volt on LB connection indicator (three-way switching valve)
19 - control panel PSK.M2 connection point
20 - DHW pump operation indicator
21 - second circuit pump operation indicator
22 - control panel PSK.M2 connection point
23 - 230 volt on U- connection indicator (ZTM three way mixing valve)
24 - 230 volt on U+ connection indicator (ZTM three way mixing valve)
25 - control panel PSK.M2 communication indicator

17
8. Connection of control panel PSK.M2 and ZIO-24 board.
Pic.8 ZIO-24 board connection 
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
,*&#$%&
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Service manual EKCO.T/EKCO.TM
18
Automatic air vent G 3/8”
Front view
supply connection G 3/4”
return connection G 3/4”
Side view
Top view
Cappilary pipe WT-3



Pic.9 Heating box
9. Heating box
!
"
# $
%
& '
(
$
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%
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$
+
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,$
- .
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/
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# $
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& 5
6 7
8
9
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& 5
%
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4
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$
# $
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9
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A
;
B
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# $
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$
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& 5
D E F G H I J K K L M K K J M N O P Q J M O P L M O M Q L J O R
S K K
D E F G H I J T K L M K L J M S O U Q M P O J U O S Q N O J
D E F G H I S M K L M K M J M L O M Q M J O S L P O L Q L U O N
D E F G H I S U K L M K J T L U O T Q M K O S L N O T Q M L O R
Tab.4 Electric parameters of heating box.

19
10. Connection diagram of heating box.
Pic.10 Connection diagram of heating box.


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
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
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()
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

ZIO-23 or ZIO-24

Service manual EKCO.T/EKCO.TM
20
11. DHW tank connection

Thermostat
ZIO23
1
2
white
yellow
Pic.11a Connection diagram for the DHW tank (EKCO.T)

Thermostat
ZAS
N LA LB
ZIO24
PSK M
ZM
W N U POMPA
U N
POMPA CWU
U N PE
POMPA 2
PE N U
ZTM
N U- U+
I2C
STATUS
+ - RPWZ
Tzas
WZ
RP
+ -
Tpok + - Tzew + - Tco2
NA
white
yellow
black
brown
blue
Pic.11b Connection diagram for the DHW tank (EKCO.TM)
black
brown
blue