Centrometal CM2K Owner's manual

CM2K
TUCM2K-10-2018-ENG
HEATING TECHNIQUE
Centrometal d.o.o. - Glavna 12, 40306 Macinec, CROATIA, tel: [phone], fax: [phone]
Technical instructions
CM2K module for
mixing circuits / DHW / Recirculation
for connection to: PelTec, Cm Pelet-set Touch, BioTec-L
BioTec Plus. EKO-CKS P Unit, EKO-CKS Multi Plus
for installation and using the additional equipment
READY

Technical instruction CM2K
2
Content
CONTENT
Thank you for purchasing our product
Please read these technical instructions carefully so that you can use and adjust the CM2K module as easily as possible.
After reading the instructions, place them in an appropriate place where you can easily find them if you need further
information about the operation and use of the CM2K module.
Please make sure that the CM2K module has been disposed of in order to reduce environmental pollution.
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3
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5-6
7
8
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10
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12-14
14
15
16
16
17
18
18
19-24
TECHNICAL CHARACTERISTICS
BASIC PARTS
DELIVERY CONTENT
ADDITIONAL EQUIPMENT FOR CM2K
INSTALLATION
CONNECTION TO THE BOILER
CONNECTING MORE CM2K MODULES
CONNECTION TO OTHER DEVICES
INPUTS AND OUTPUTS CONNECTION
LED INDICATORS
CONFIGURATIONS
ENABLING CM2K
MANUAL TEST
CM2K VIEW SELECTION
CM2K VIEW
CIRCUIT TYPES AND VIEW SYMBOLS
CM2K VIEW EXAMPLES
CM2K SETTINGS
DESCRIPTION AND PARAMETERS VALUE
DESCRIPTION AND PARAMETER VALUES BY HEATIING TYPE

3
Technical characteristics
Inputs
Outputs
Output power
Power supply
Max. power
Electricity consumption
Conductor cross section
IP protection
Envirometn temperature
CM2K mass
Housing material
CM2K dimensions
Sensor technical characteristics
Sensor type
Min. conductor cross section
Max. conductor length
4x sensor inputs (NTC5K, 2x main flow/DHW, 1x outdoor, 1x reserve)
2x room corrector inputs CSK
2x digital inputs (not used)
4x semi-conductor (triac, 2x pump, 2x mixing valve actuator)
1x power supply 12VDC (not used)
Triacs (4x) max. 200W
195-265V/50Hz
1-1,5 mm2
IP20 according EN
-10 do 40°C
715 g
Flame resistant ABS (UL94V-0)
(WxHxD) 200x40x200
NTC5K
0,5-0,75 mm2
50 m
EC Declaration
The product complies with the requirements of the current rules and is marked CE.
The EC Declaration of Conformity is available on request, contact the manufacturer.
INPUTS:
- 4x sensor input (NTC5K sensor - 2x main flow/DHW, 1x outdoor sensor, 1x reserve)
- 2x room corrector CSK input (possibility of connection with 3 or 2 wires - connection depends of boiler type and
boiler firmware)
- 2x digital input (not used)
OUTPUTS:
- 2x standard (230V) - pump
- 2x standard (230V) - actuator
- 1x 12VDC - not used
- 2x UTP connector for connecting to the boiler and connection more CM2K modules or other additional equipment
(WiFi box...)
DELIVERY in cardboard box:
1x CM2K module
2x NTC5K (main flow sensor / DHW sensor)
1x UTP cable 5m
3x dowel+screw
10x cable ties
1x technical instructions
TECHNICAL CHARACTERISTICS
BASIC PARTS
Technical instructions CM2K

4
Delivery content, Additional equipment, Installation
DELIVERY CONTENT
CM2K
1X
Main flow sensor /
DHW sensor
2X
UTP cable L=5m
1X
Installation set
1x
(3 dowels, 3 screws,
10 cable ties)
ADDITIONAL EQUIPMENT FOR CM2K
INSTALLATION
CM2K module is installed on the wall or on hard surface in closed dry room.
According the picture below, drill 3 holes 6 mm x 35-45 mm.
Insert 3 dowels into drilled holes and install screw into upper dowel with ca. 4 mm discance from the wall.
Remove lower cover, hang the module on the upper screw, install lower screws to the mounting holes in the module and in
the wall. Fasten the screws to secure the module to the wall.
~4 mm
155 mm
152 mm
170,6 mm
6 mm
hang
fasten
fasten
Technical instruction CM2K
Room corrector CSK
Note:
Room corrector CSK is NOT in delivery package.
With CM2K module is posible to use only CSK room corrector from producer Centrometal.
Maximum of two room correctors can be connected, one for each circuit.
Outdoor sensor OVT is NOT in delivery package.
At certain boilers outdoor sensor is in standard delivery and at some boilers it must be separately ordered.
Outdoor sensor OVT

5
Connection to the boiler
CONNECTION TO THE BOILER
PelTec
S13
S14
UTP
S1 S2 S3 S4 S5
S7 S8 S9 S10 S11
S6
S12
CM2K
1 2
BUS RJ45
BioTec-L
UTP
S1 S7 S2 S3 S4 S5
S8
S9
S10
S11
S6
S13
S12
S14
NOTE:
both UTP connectors in CM2K have same
function and are used for connection to the
boiler or connection of other additional
equipment
Cm Pelet-set Touch
CM2K
1 2
BUS RJ45
CM2K
1 2
BUS RJ45
UTP
UTP
UTP
UTP
UTP
UTP
1
UTP
Technical instructions CM2K

6
Connection to the boiler
CONNECTION TO THE BOILER
BioTec Plus CM2K
1 2
BUS RJ45
UTP
EKO-CKS P Unit
UTP
S1 S7 S2 S3 S4 S5
S8
S9
S10
S11
S6
S13
S12
S14
EKO-CKS Multi Plus
CM2K
1 2
BUS RJ45
CM2K
1 2
BUS RJ45
UTP
UTP
UTP
UTP
1 2
UTP
1 2
UTP
UTP
NOTE:
in EKO-CKS P Unit boilers, additional equipment
(CM2K included) must be connected to free UTP connector
on the regulation box or any free UTP connector on the any
PCB in the regulation box (installed PCBs depends of the
installed boiler equipment)
Technical instruction CM2K
NOTE:
in EKO-CKS Multi Plus boilers, additional equipment
(CM2K included) must be connected to free UTP connector
on the regulation box or any free UTP connector on the any
PCB in the regulation box (installed PCBs depends of the
installed boiler equipment)

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Connecting more CM2K modules
Maximum up to 4 modules can be connected. Connection is done by UTP cables. UTP input/output 1 or UTP input/output 2
can be used (they both have same function, free connector is used for connection of next module or for connection of other
additional equipment).
If there are more than 1 CM2K installed, in every module is necessary to set device address (0-4). Address is set by SW
switches on the PCB of the module (below casing cover of the connection clamps). Order of connection is not important,
circuit number is defined by module address with SW switches (every module must have different address, i.e. two devices
can’t have same address).
on dip
1234
Device 1
1 - off
2 - off
3 - off
4 - off
on dip
1234
Device 2 1 - on
2 - off
3 - off
4 - off
Position of the
SW switches
on dip
1234
Device 3 1 - off
2 - on
3 - off
4 - off
on dip
1234
Device 4 1 - on
2 - on
3 - off
4 - off
CONNECTING MORE CM2K MODULES
CM2K 1 CM2K 2 CM2K 3 CM2K 4
12
Boiler
UTP
111
222
UTP UTP UTP
Additional
equipment
Technical instructions CM2K

8
Connection to the other devices
PRIMJER SPAJANJA U KOMBINACIJI S DRUGIM UREĐAJIMA (CM-GSM, CMNET, CVT)
*If vacuum turbine CVT is connected, it must be connected last in order
Connection is done with UTP cables. Every additional equipment device has 2 UTP connectors (except vacuum turbine
CVT). Both UTP connector have same function. Devices can be connected in any order except vacuum turbine, which
must be always last in order because it has only 1 UTP connector.
CONNECTION TO THE OTHER DEVICES (CM WIFI-BOX, CM-GSM, CMNET, CVT)
12
CM-GSM CMNET
Boiler
UTP
UTP
UTP
UTP
*CVT
(vacuum pellet delivery)
CM2K
12
Cm WiFi-box
Boiler
UTP
UTP
UTP
CM2K
Additional equipment
Technical instruction CM2K

9
Inputs and outputs connection
INPUTS AND OUTPUTS CONNECTION
N F
230VAC
1+-
12VDC +-
D.COR2
+-
D.COR1
UTP2UTP1
BUS RJ45
2
1 2
A.COR 1
3
Tsp 1 Tos
1 2
A.COR 2
3
Tsp 2 Tspr
3
4
N
5P1 C1 O1 P2 C2 O2
NNNNN
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Outputs phase
live wire (L)**
Outputs common
null (N)
Outputs
Circuit 2 inputs
Circuit 1 inputs
Power supply
UTP inputs/outputs
Digital input
1 2
EARTH1
3
7
Earthning
41 2
EARTH2
31 2
EARTH3
3
8Cable connectiong rail
fasten the cables to the rail with cable ties
P1 - circuit 1 pump
C1 - circuit 1 actuator - close
O1 - circuit 1 actuator - open
P2 - circuit 2 pump
C2 - circuit 2 actuator - close
O2 - circuit 2 actuator - open
**
CM2K power supply
power supply 230V must be connected to control connected pumps and actuators
Common earthning
connect earthning of the power supply and
connected pumps
Circuit 2 inputs
- A.COR 2- room corrector
- Tsp 2 - main flow sensor
- Tspr - reserve (not used)
Circuit 1 inputs
- A.COR 1- room corrector
- Tsp 1 - main flow sensor
- Tos - outdoor sensor
Inputs/outputs for UTP cables
- one input/output is for connection to the boiler
- free input/output is used for connecting more CM2K modules or other addititonal
equipment
* NOT USED
1
235
6
7
77 8
4
10
9
- F2 - fuse 1,6A - outputs 2. circuit
(pump, actuator)
- F1 - fuse 1,6A - outputs 1. circuit
(pump, actuator)
10
9
Technical instructions CM2K

10
LED indicators
LED INDICATORS
EXAMPLES OF LED INDICATORS
1. 2.
1. Circuit
All devices are off
2. Circuit
All devices are off
1.
1. Circuit
Pump works; Mixing valve closes
1.
1. Circuit
Pump works; Mixing valve opens
2.
2.
2. Circuit
Pump works; Mixing valve closes
2. Circuit
Pump works; Mixiong valve opens
Upper cover
screw (service)
Cables inlet
(UTP, power supply, sensors
pumps, actuators, correctors)
Lower cover screw
(access to connecting
clamps rail)
Status strip with
LED diodes and
symbols
- status - indicates CM2K status; connection with the boiler is ok, boiler is connected to the power supply and main
switch is on - doesn’t mean that CM2K is connected to the power supply (230V)
- for pumps and actuators working CM2K power supply (230V) must be connected
- pump - indicates working of the pump (LED ON = pump works / LED OFF = pump doesn’t work)
- actuator - close (LED ON = actuator closes / LED OFF = actuator doesn’t work)
- actuator - open (LED ON = actuator opens / LED OFF = actuator doesn’t work)
NOTE: actuator open and actuator close can’t work at the same time
Technical instruction CM2K
Upper cover
screw (service)
Lower cover screw
(access to connecting
clamps rail)

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Configurations
CONFIGURATIONS
For configuration schemes and view on the screen look in the boiler
regulation technical instructions.
Example of scheme selecting: PelTec
X X X X
Boiler configuration must be set in the Installation menu (under PIN).
PelTec - CM2K can be enabled only in schemes that have accumulation tank or hydraulic crossover.
BioTec-L - CM2K can be enabled in all configurations (schemes) because all have accumulation tank.
Cm Pelet-set Touch - CM2K can be enabled in all configurations (schemes) because all have accumulation tank,
hydraulic crossover or 4-way mixing valve.
BioTec Plus - CM2K can be enabled in all configurations (schemes) because all have accumulation tank.
EKO-CKS P Unit - CM2K can be enabled in all configurations (schemes) because all have accumulation tank or
hydraulic crossover.
EKO-CKS Multi Plus - CM2K can be enabled in all configurations (schemes) because all have accumulation tank.
Technical instructions CM2K

12
Display order and ordinal numbers in regulation don’t have to match exactly to this
instructions. They depend of the configuration, firmware version and setting of the
regulation.
Enabling CM2K
ENABLING CM2K
CM2K can be enabled only by authorized serviceman in Installation menu (PIN). By selecting number of CM2K modules,
module is enabled (every module can control 2 circuits). By selecting number of CM2K modules, option REGULATOR/
CM2K is enabled (activated) and in the main menu Regulator/CM2K menu icon will be displayed. User can use this menu
to monitor and adjust some of the parameters.
XXXX
Example of enabling CM2K: PelTec (1xCM2K - 2 circuits)
CM2K enabled
X X X X
Example of enabling CM2K: BioTec-L (2xCM2K - 4 circuits)
CM2K enabled
Example of enabling CM2K: Cm Pelet-set Touch (1xCM2K - 2 circuits)
NOTE: after enabling any of CM2K modules (2 circuits), for each circuit, heating type must be set /
selected. After selecting the heating type, it is enabled and settings for it are displayed.
Technical instruction CM2K
X X X X

13
Enabling CM2K
X X X X
Example of enabling CM2K: EKO-CKS P Unit (1xCM2K - 2 circuits)
CM2K enabled
X X X X
Example of enabling CM2K: BioTec Plus (1xCM2K - 2 circuits)
CM2K enabled
Example of enabling CM2K: EKO-CKS Multi Plus (1xCM2K - 2 circuits)
Technical instructions CM2K
CM2K enabled
X X X X

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Enabling CM2K, Manual test
CM2K enabled
In this menu all outputs to the connected devices /(pumps/actuators) can be manually tested. Every circuit can be
separately tested. Depending of the number of enabled circuits, manual test for each circuit is shown.
Example of manual test menu:
MANUAL TEST
Example:
DHW
Example:
Recirculation
Example:
Radiator/Floor/Const. temp.
Example:
DHW + Recirculation
NOTE:
- By pressing the button START, pump or valve actuator opening/closing
is started and this button becomes STOP
- by pressing the button STOP, pump or valve actuator opening/closing is
stoped and this button becomes START
- with this options, demand for work of output/connected device is manually
started, but is neccesary to check if outputs is actualy activated and device
is actualy working.
Technical instruction CM2K

15
CM2K view selection
CM2K VIEW SELECTION
Example: PelTec
Example: BioTec-L
Example: Cm Pelet-set Touch
Example: BioTec Plus
Example: EKO-CKS P Unit
Example: EKO-CKS Multi Plus
Technical instructions CM2K

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CM2K view
CM2K VIEW
Enabled circuits and their settings can be monitored (circuit type: Radiators / Floor / Const. temp. / DHW / Recirculation /
DHW+Recirculation; set temperatures; measured temperatures; pumps working; actuator working; schedules; working
mode...).
To access CM2K options view press button or on main screen (there will be new window with CM2K view or tools
menu with additional button for CM2K view and other additional equipment buttons). To go back to main menu press button
or to cycle between views press . If there is more than one CM2K installed, in CM2K view, views between CM2K
modules (circles) can be changed by pressing buittons (in one view is one CM2K, i.e. two circuits).
CIRCUIT TYPES AND CM2K VIEW SYMBOLS
Circuit 2 - Floor heating
room corrector
night mode
Circuit 1 - Radiator heating
room corrector
day mode
Circuit 4 - DHW
Circuit 3 - Constant temp.
room corrector
day mode
Circuit 6 - DHW + Recirculation
recirculation schedule
(work enabled)
Circuit 5 - Recirculation
recirculation schedule
(work disabled)
Circuits view change
Technical instruction CM2K

17
CM2K view
CM2K VIEW EXAMPLES
1 - circuit number
2 - mixing valve with actuator
3 - actuator working indication
4 - measured main flow temp.
5 - calculated main flow temp.
6 - pump working demand indication
7 - pump
8 - room corrector
9 - circle heating type
10 - set room temp.
11 - room temp. indication
12 - corrector correction setting
13 - measured rooom temp.
14 - work mode indication
15 - schedule/work enabled/disabled indication
16 - measured outdoor temp.
17 - measured accumulation tank upper temp.
18 - measured accumulation tank lower temp.
19 - indication of DWH tank with enabled recirculation
20 - measured DHW (domestic hot water) tank temp.
21 - measured CRO (hydraulic cross over) temp.
5 6 7 16 8 9 10 11 12 1321
2 4 5 6 7 8 9 10 11 12118 13 143 15
417 3 14
1. circuit - radiator heating / room corrector / day mode (with schedule)
2. circuit - floor heating / room corrector / night mode
3. circuit - constant temp. / room corrector / day mode
4. circuit - DHW
5. circuit - Recirculation / Recirculation enabled
(by schedule)
6. circuit - DHW + Recirculation / Recirculation disabled
(by schedule)
19 9 14 15
9 9 15 149 20
9
21
Technical instructions CM2K

18
CM2K settings, Parameters
CM2K SETTINGS
Initial settings of working parameters for CM2K must be done by authorized serviceman because enabling and certain
setting parameters are under Installation menu (PIN). After enabling the CM2K module in main menu new icon (menu)
Regulation/CM2K will appear. Under this menu user can adjust certain parameters of heating circuits.
NOTE: every parameter will be marked by who can set it, serviceman and user or only serviceman .(S/K) (S)
EXAMPLE: view of the Regulator/ CM2K menu under Installation menu (PIN) - parameters with indication will be (S/K)
displayed also under Regulator/CM2K menu in the main menu so user can adjust them.
DESCRIPTION AND PARAMETERS VALUE
Example: Circuit count - OFF Example: Circuit count - 2 CM2K (4 circuits)
Example: Heating type - radiator
Example: heating type - Disabled
Example: Heating type - radiator
Circuit count (S)
This parameter is used to set number of CM2K modules i.e. number of
circuits (1 CM2K = 2 circuits)
By selecting and confirmation of CM2K modules this parameter
is enabled.
X. circuit (in this example - 1. circuit)(S/K)
Enable and disable heating circuit.
This parameter is used to enable or disable heating circuit (set parameters are
stored). 1. circuit ON
Factory setting setting
OFF/ON
Valve time 120 sec
Factory setting setting
10-300 sec
Circuit count OFF
Factory setting setting
OFF / 1xCM2K... 4xCM2K
Heating type
Factory setting setting
Disabled/Radiator/Floor/Constant temp./DHW/*Pool/Recirculation/DHW+RecirculationDisabled
Technical instruction CM2K
Example: Heating type - radiator
NOTES:
- at initial circle view (before adjusting) are only certain parameters shown (X. circuit / Valve time / Heating type / Corrector).
After adjusting the circuit heating type, in main menu of heating circuit, other parameters will be shown according the set
heating type.
- certain parameters depends of the boiler type to which CM2K is installed and view is set according to this. Because of this,
certain parameters are shown or not shown depending of the boiler type.
Valve time (S/K)
Setting the mixing valve actuator speed.
This parameter is used for setting the speed of the mixing valve actuator speed for
work of 90° (open/close). It must be set according the installed mixing valve
actuator speed.
Heating type (S)
Setting the heating circuit type.
This parameter is used to set heating circuit type. After setting the heating circuit type, in main menu of the circuit, other
setting parameters will be shown according the heating circuit type.
* NOT USED

19
CM2K settings
Corrector (S)
Setting for room corrector (installled/not installed) and room corrector type.
This parameter is used for setting if room corrector is used or not, room corrector type and its connection type.
DESCRIPTION AND PARAMETERS VALUE BY HEATING CIRCUIT TYPE
X. circuit - see page18(S/K)
Valve time - see page 18(S)
Heating type - see page 18(S)
Corrector - see page 19(S)
Heating curve (S/K)
Setting of the heating curve.
Heating curve is one of the parameters for main flow temp. calculation.
Outdoor temperature
Main flow temperature
Coefficient
Coeffiicent
Corrector OFF
Factory setting setting
OFF / ON / Room temp. (2 wires) / Reg. control
Correcto ON: standard connection of Centrometal CSK room corrector with 3 wires (measuring and view of the room
temp. and corrector correction).
Room temp. (2 wires): connection of Centrometal CKS room corrector with 2 wires (measuring and view of the room
temp., without corrector correction) - in case only 2 wires are installed.
Reg. control: regulationg the circuit pump with external heating circuit regulation and its demand for heating and pump
working.
RADIATOR / FLOOR
Heating curve 1.0
Factory setting setting
0.1-4.0
Technical instructions CM2K

20
CM2K settings
Day / Night temp. (S/K)
Setting the heating circuit mode.
This parameter is used to set heating circuit mode. Selecting the Day temp. heating cirucuit always works according set
day temp., selecting the Night temp. heating circuit always works accroding set night temp. and by selecting the Table 1/2,
heating circuit automaticaly switches mode between set day and set night temp. according the time set in the Table 1/2.
circuit number
week day
day selecting button
day temp.
night temp.
back button
time setting area
(buttons)
copy button
paste button
entire day
selected
OK (confirmation)
button
Day/night temp. Day temp.
Factory setting setting
Day temp. / Night temp. / Table 1 / Table 2
Table 1 / Table 2 (S/K)
Setting the schedule tables with heating ciruit mode switching between day and night temp.. For each day 3 mode
switching can be set. All settings from one day can be selected and copy/paste to any another day of the week. After any
adjustment they must be confirmed by pressing OK button to save the settings. Two tables can be set but only one can be
active.
Technical instruction CM2K