Centrometal BioTec-L Owner's manual

TU-R-BT-L-07-2020-v2.45f-ENG
BioTec-L
Centrometal d.o.o. - Glavna 12, 40306 Macinec, Croatia, tel: [phone], fax: [phone]
HEATING TECHNIQUE
Technical instructions
THE FIRST START-UP MUST BE DONE BY AUTHORIZED PERSON
OTHERWISE PRODUCT WARRANTY IS NOT VALID.
English Deutsch Magyar
v2.35L xxkW
Italiano
Français Portugues Čeština SrpskiSlovenski
Hrvatski
Nederlands
Espanol
15:45
D4
2200
35.0%
23.0%
-2°C
3%
130°C
65°C
54°C
325°C
78 °C
25.0°C
20.0-0.0°C
20.0°C
47°C
Description and using of boiler control unit
READY
ENG

Technical instructions REGULATION BioTec-L
2
Content
1.0. Description - (4)
1.1. Switching on - (4)
1.2. Main menu - (5)
1.3. Buttons - (5)
1.4. Symbols - (6)
2.0. Configuration (authorized persons only) - (7)
2.1. General connection schemes configuration - (9)
2.1.1. Motor drive opening time - (19)
2.1.1.1. Protection valve - Opening time - (19)
2.1.1.2. Opening time - Motor drive - (20)
3.0. Main menu description - (21)
3.1. Temperatures - (21)
3.1.1. Boiler temperature - (22)
3.1.2. Differential of boiler temperature - (22)
3.1.3. Minimum buffer tank temperature - (22)
3.1.4. Domestic hot water temperature - (23)
3.1.5. Domestic hot water difference - (23)
3.1.*. Min Temp CRO - (23)
3.1.6. Temperatures in heating circuit motor drive - (24)
3.1.6.1. Heating circuit motor drive - (24)
3.1.6.2. Heating curve - (24)
3.1.6.3. Correction coefficien t - (25)
3.1.6.4. Value of day room temperature - (26)
3.1.6.5. Value of night room temperature - (26)
3.1.6.6. Day/night temperature choice - (26)
3.1.6.7. Day/night temperature table - (27)
3.1.6.8. Transition time - (27)
3.1.7. Correct o r - (28)
3.1.7.1. Value of day room temperature - (28)
3.1.7.2. Value of night room temperature - (28)
3.1.7.3. Day/night temperature choicce - (29)
3.1.7.4. Day/night temperature table - (29)
3.2. History - (30)
3.3. File - (31)
3.3.1. Load factory - (31)
3.3.*. Load service - (31)
3.3.2. Save - (31)
3.3.3. Load - (31)
3.4. Operation - (32)
3.4.1. Manual test - (32)
3.4.1.1. Protection valve - (33)
3.4.1.2. Alarm - (34)
3.4.1.3. Lambda - (35)
3.4.2. Chimney sweeper - (35)
3.4.3. Forced shutdown - (36)
3.4.4. Alarm - (37)
3.4.4.1. Errors - (38)
3.4.4.2. Fuel level - (38)
3.4.4.3. Buffer tank - (39)
3.4.4.4. Delay - (40)
3.4.4.5. Table - (40)
3.4.4.6. Table 1 - (40)
3.4.5. Pump protection - (42)
3.4.6. Internet supervision - (43)
3.5. Date and Time - (45)
3.6. Display - (45)
3.6.1.1. Screensaver - Time - (45)
3.6.1.2. Screensaver - Hold on - (46)

Content
3.6.2. Language selection - (47)
3.6.3. Initial message time - (47)
3.6.4. Sound volume - (48)
3.6.5. Sound type - (48)
3.6.6. Sound - (48)
3.7. Info - (49)
3.8. Glow - (50)
3.9. Installation - (51)
3.10. Cleaning - (51)
3.11. CM2K - (51)
4.0. Using - (52)
4.1. Pump P1 working conditions - (52)
4.2. Ignition - (52)
4.3. Refilling - (55)
5.0. Operation phases - (58)
5.1. Boiler OFF conditions - (61)
6.0. Error/warning on the main screen - (61)
6.1. List and elimination of errors / warnings / informations - (62)
7.0. Boiler interruption / improper operation of the boiler - (71)
7.1. Safety thermostat_boiler interruption - (71)
7.2. Boiler work in phase "DOP0" and the upper door of the boiler are closed _ improper operation of the boiler - (72)
7.3. RPM sensor switching off - (73)
8.0. The principle of operation of the P1 pump - (74)
Technical instructions REGULATION BioTec-L 3

After turning on the main switch, screen will display language selection menu and software version.
To select the language, press the flag of language you want.
Software version
Language selection
1.1. SWITCHING ON
If the language selection is "disabled" (display > language sel > disabled), initial message wil appear in
the screen as long as the set in the menu "Welcome time" (display > welcome time).
Boiler power
(25, 34, 45 kW)
v2.45 XX kW
Button’’OK’’
Initial message duration
(countdown)
Software version
Boiler power
(25, 34, 45 kW)
Description
When turning the main switch the screen should not be pressed (by finger...). If
the screen when you turn the main switch is pressed (on the screen labeled
"Firmware update") regulation is in ”software update“ that can be used by
authorized personnel only. If this happens, it is necessary to turn off the main
switch and restarted without any pressure on the display.
1.0. DESCRIPTION
Technical instructions REGULATION BioTec-L
4

1.2. MAIN MENU
The main menu is used to select the desired submenu. To select a specific menu you must press the
appropriate icon on the screen. To switch between the ’’Main menu’’ and ’’Boiler working display’’ press
the button ’’Display selection’’. To switch between graphic and numeric display of the boiler using press
’’Boiler operation display’’.
Start/stop boiler
State of the current
boiler status
Time
Display selection:
Main menu / work
Boiler operation display :
graphic / numeric
1.3. BUTTONS
Button ’’START’’/’’STOP’’
Button ’’ON / OFF’’
options: on / off boiler operation’’
Button ’’DISPLAY SELECTION’’
options: main menu / work
Button ’’BOILER OPERATION DISPLAY’’
options: graphic / numeric
Button ’’ENTER’’
Button ’’BACK’’
Button’’PREVIOUS SCREEN’’
Button ’’NEXT SCREEN’’
Button ’’OK’’
Navigation buttons:
’’LEFT’’, ’’RIGHT’’, ’’UP’’, ’’DOWN’’
Button ’’DELETE’’
Button ’’FACTORY SETTINGS’’
Button ’’INFORMATION’’
Button ’’COPY’’ Button ’’PASTE’’
Main menu, buttons
Technical instructions REGULATION BioTec-L 5

Symbols
1.4. SYMBOLS
0
0.0%
0.0%
xx°C
x%xx°C
xx°C
xx°C
xx°C
1
3 4 2
5
7
8
9
10 11 12 14
6
1 - Boiler BioTec-L
2 - Buffer tank
3 - Boiler pump P1
4 - 3-way thermic valve or
3-way mixing valve with
motor drive (protection valve)
5 - Symbol of fan operation
(when working, symbol is turning)
6 - Fan speed (rpm)
7 - Curent position of primary air
actuator
8 - Current position of secondary air
actuator
9 - Combustion chamber temperature
10 - Flue gas temperature sensor
11 - The percentage of oxygen in the flue gases
12 - Outer temperature sensor
13 - Glow indicator (if enabled)
14 - The symbol in this section depend ont the
selected configuration
15 - Boiler temperature
13
xx °C
15
Technical instructions REGULATION BioTec-L
6

Configuration
2.0 CONFIGURATION (authorized persons only)
For entry into Configuration menu press ”Installation“ button. When you press ”Installation“ button
control unit ask for PIN. Enter PIN and confirm it by presing “Enter“ button.
In installation menu press ”Configuration“ button to enter into ”Configuration“ menu.
Technical instructions REGULATION BioTec-L 7
* * * *

Configuration menu:
Configure the system by selecting installed components! Some components exclude others
(eg. you can choose radiator heating or floor heating, not both of them), some components can
be selected only with another component (eg. room thermostat can be selected only if you
select radiator h. or floor h., if you don't select this component room thermostat can't be
selected).
Configuration
When the configuration contains motor drive, you need to enter VALVE TIME.
This parameter defines how many seconds is required for mixing valve
opening/closing.
THIS NUMBER MUST CORRESPOND EXACTLY TO THE TIME IT TAKES THE
MOTOR DRIVE TO OPEN THE VALVE (DEPENDS ON THE TYPE OF MOTOR)
Technical instructions REGULATION BioTec-L
8

Configuration 1: (Basic configuration)
On display is displayed:
05:08
OFF
0
0.0%
0.0%
xx°C
x%xx°C
xx°C
xx°C
xx°C
2
xx °C
1
3
1 - Boiler BioTec-L
2 - Buffer tank
3 - Outer temperature sensor
4 - Return flow protection by 3-way termostatic valve (60°C)
VTC 531 (60°C), LTC 261/271 (60°C) or laddomat 21 (63°C)
Configuration 1
On this configuration all compontents are unselected.
4
2.1 GENERAL CONNECTION SCHEMES CONFIGURATION
In ”Tecnical instructions for installation of hot water boiler BioTec-L” are showned general connection
schemes. The following instructions show which configuration corresponds to which scheme.
Technical instructions REGULATION BioTec-L 9

On display is displayed:
05:08
OFF
0
0.0%
0.0%
xx°C
x%xx°C
xx°C
xx°C
xx°C
2
xx °C
13
Configuration 2 is from scheme 4 and scheme 5 from ”Tecnical instructions for installation of
hot water boiler BioTec-L”
25.0°C
20.0-0.0°C
20.0°C
-°C
85 4 67
xx°C
9
10
1 - Boiler BioTec-L
2 - Buffer tank
3 - Outer temperature sensor
4 - Heating etage (radiator h.)
5 - Room corrector (CSK)
6 - Heating pump P3
7 - Main flow sensor
8 - Mixing valve with el. actuator
of heating circuit (motor drive)
9 - DHW boiler
10 - DHW pump P2
11 - Day/night temperature
indicator
Configuration 2
In this configuration the following components are selected:
- radiator heating, corrector, motor drive (heating circuit), DHW (domestic hot water)
11
In this configuration, on the previous screen, a new button is displayed (Pump DHW continously)
Technical instructions REGULATION BioTec-L
10
When DHW sensor (ERROR 1) occurs, regulation cannot automatically turn ”ON/OFF“ DHW pump.
For intervention work serviceman can turn ”ON“/“OFF“ DHW pump manually. In this case, the pump
DHW work all the time until serviceman manually turn it ”OFF“.

On display is displayed:
05:08
OFF
0
0.0%
0.0%
x%xx°C
xx°C
xx°C
xx°C
2
xx °C
1
-°C
4
5
xx°C
3
1 - Boiler BioTec-L
2 - Buffer tank
3 - Outer temperature sensor
4 - Mixing valve with el. actuator
(return flow protection) (protection valve)
5 - Return flow sensor
Configuration 3
Configuration 3 is from scheme 6 from ”Tecnical instructions for installation of hot water
boiler BioTec-L”
In this configuration the following components are selected: - protection valve (return flow protection)
Technical instructions REGULATION BioTec-L 11

On display is displayed:
1 - Boiler BioTec-L
2 - Buffer tank
3 - Outer temperature sensor
4 - Mixing valve with
el. actuator
(return flow protection)
(protection valve)
5 - Return flow sensor
6 - DHW tank
7 - DHW pump
05:08
OFF
0
0.0%
0.0%
x%xx°C
xx°C
xx°C
xx°C
2
xx °C
1
-°C
4
5
xx°C
3
xx°C
67
Configuration 4
Configuration 4 is from scheme 7 from ”Tecnical instructions for installation of hot water
boiler BioTec-L”.
In this configuration the following components are selected: - protection valve (return flow protection)
- DHW (domestic hot water)
When DHW sensor (ERROR 1) occurs, regulation cannot automatically turn ”ON/OFF“ DHW pump.
For intervention work serviceman can turn ”ON“/“OFF“ DHW pump manually. In this case, the pump
DHW work all the time until serviceman manually turn it ”OFF“.
In this configuration, on the previous screen, a new button is displayed (Pump DHW continously)
Technical instructions REGULATION BioTec-L
12

Configuration 5
Configuration 5 is from scheme 8 and 9 from ”Tecnical instructions for installation of hot
water boiler BioTec-L”.
In this configuration the following components are selected:
radiator heating, corrector, motor drive (heating circuit), 2.Heating Circuit, 2.Circuit room thermostat
On display is displayed:
05:08
OFF
0
0.0%
0.0%
xx°C
x%xx°C
xx°C
xx°C
xx°C
2
xx °C
1
3
25.0°C
20.0-0.0°C
20.0°C
-°C
85 4 67
1 - Boiler BioTec-L
2 - Buffer tank
3 - Outer temperature sensor
4 - Heating etage (radiator h.)
5 - Room corrector (CSK)
6 - Heating pump P3 (circuit 1)
7 - Main flow sensor
8 - Mixing valve with
el. actuator of heating
circuit (motor drive)
10 11
9
9 - Day/night temperature
indicator
10 - Heating pump
(circuit 2)
11 - Room thermostat
(circuit 2)
Technical instructions REGULATION BioTec-L 13

Configuration 6
On display is displayed:
02:08
OFF
0
0.0%
0.0%
xx°C
x%xx°C
xx°C
xx°C
xx°C
2
xx °C
1
3
20.0°C
-°C
84 67
1 - Boiler BioTec-L
2 - Buffer tank
3 - Outer temperature sensor
4 - Heating etage (floor h.)
5 - Day/night temperature
indicator
6 - Heating pump P3
7 - Main flow temperature sensor
8 - Mixing valve with el. actuator
of heating circuit (motor drive)
In this configuration the following components are selected: - floor heating
- motor drive (heating circuit)
5
Configuration 6
Technical instructions REGULATION BioTec-L
14

Configuration 7
On display is displayed:
05:08
OFF
0
0.0%
0.0%
xx°C
x%xx°C
xx°C
xx°C
xx°C
2
xx °C
1
3
25.0°C
20.0-0.0°C
5 4
6
1 - Boiler BioTec-L
2 - Buffer tank
3 - Outer temperature sensor
4 - Heating etage (radiator h.)
5 - Room corrector (CSK)
6 - Heating pump P3
7 - Day/night temperature indicator
In this configuration the following components are selected: - radiator heating
- room corrector
7
Configuration 7
Technical instructions REGULATION BioTec-L 15

05:08
OFF
0
0.0%
0.0%
x%xx°C
xx°C
xx°C
xx°C
2
xx °C
1
xx°C
3
xx°C
6 4
Configuration 8
In this configuration the following components are selected: - BUF-CRO
On display is displayed:
1 - Boiler BioTec-L
2 - Buffer tank
3 - Outer temperature sensor
4 - Hydraulic crossover
5 - Hydraulic crossover sensor
6 - Hydraulic crossover pump
In this configuration, on the previous screen, a new button is displayed (Pump CRO)
5
Configuration 8
Request – Pump BUF-CRO (6) (P2 or P3, depends on the configuration) works if there is a request for a
pump controlled by the boiler, a CM2K module or a request for a DHW pump and if the condition Tbuf >
Tbuf_min is met . If required, the BUF-CRO pump can be activated to run continuously (for example against
freezing) in menu 4. Operation -> 4.6.Pump CRO Const
Maintenance – Pump BUF-CRO (6) (P2 or P3, depends on the configuration) runs continuously when the
condition Tbuf> Tcro_min + 5 °C is met (this option is used when the regulation does not recognize the
requirement of the heating circuits, ie when CM2K or DHW control via the boiler regulation is not used). In
menu 1. Temperature the minimum temperature of the hydraulic crossover switch can be set 1.4. Min. Temp.
CRO. If required, the BUF-CRO pump can be activated to run continuously (for example against freezing) in
menu 4. Operation -> 4.6.Pump CRO Const
Technical instructions REGULATION BioTec-L
16

15:08
OFF
0
0.0%
0.0%
x%xx°C
xx°C
xx°C
xx°C
2
xx °C
1
xx°C
7
8
1 - Boiler BioTec-L
2 - Buffer tank
3 - Outer temperature sensor
4 - Hydraulic crossover
5 - Hydraulic crossover sensor
6 - Hydraulic crossover pump
7 - DHW tank
8 - DHW pump
xx°C
xx°C
3546
Configuration 9
Configuration 9 is from scheme 11 from ”Tecnical instructions for installation of hot water
boiler BioTec-L”.
In this configuration the following components are selected: - BUF-CRO (hydraulic crossover)
- DHW (domestic hot water)
On display is displayed:
In this configuration, on the previous screen,
a new button is displayed (Pump CRO)
Technical instructions REGULATION BioTec-L 17
Request – Pump BUF-CRO (6) (P2 or P3, depends on the configuration) works if there is a request for a
pump controlled by the boiler, a CM2K module or a request for a DHW pump and if the condition Tbuf >
Tbuf_min is met . If required, the BUF-CRO pump can be activated to run continuously (for example against
freezing) in menu 4. Operation -> 4.6.Pump CRO Const
Maintenance – Pump BUF-CRO (6) (P2 or P3, depends on the configuration) runs continuously when the
condition Tbuf> Tcro_min + 5 °C is met (this option is used when the regulation does not recognize the
requirement of the heating circuits, ie when CM2K or DHW control via the boiler regulation is not used). In
menu 1. Temperature the minimum temperature of the hydraulic crossover switch can be set 1.4. Min. Temp.
CRO. If required, the BUF-CRO pump can be activated to run continuously (for example against freezing) in
menu 4. Operation -> 4.6.Pump CRO Const

1 - Boiler BioTec-L
2 - Buffer tank
3 - Outer temperature sensor
4 - Heating etage (radiator h.)
5 - Room corrector (CSK)
6 - Heating pump P3
7 - Main flow temperature sensor
8 - Mixing valve with motor drive
9 - Hydraulic crossover
10 - Hydraulic crossover sensor
11 - Hydraulic crossover pump P2
12 - Day/night temperature indicator
05:08
OFF
0
0.0%
0.0%
xx°C
x%xx°C
xx°C
xx°C
xx°C
2
xx °C
1
3
25.0°C
20.0-0.0°C
20.0°C
-°C
85 4 67 12
xx°C
9
11 10
Configuration 10
Configuration 10 is from scheme 12 from ”Tecnical instructions for installation of hot water
boiler BioTec-L”.
In this configuration the following components are selected: - BUF-CRO (hydraulic crossover)
- Radiator heating
- Corrector
- Motor drive
On display is displayed:
In this configuration, on the previous screen,
a new button is displayed (Pump CRO)
Technical instructions REGULATION BioTec-L
18
Request – Pump BUF-CRO (6) (P2 or P3, depends on the configuration) works if there is a request for a
pump controlled by the boiler, a CM2K module or a request for a DHW pump and if the condition Tbuf >
Tbuf_min is met . If required, the BUF-CRO pump can be activated to run continuously (for example against
freezing) in menu 4. Operation -> 4.6.Pump CRO Const
Maintenance – Pump BUF-CRO (6) (P2 or P3, depends on the configuration) runs continuously when the
condition Tbuf> Tcro_min + 5 °C is met (this option is used when the regulation does not recognize the
requirement of the heating circuits, ie when CM2K or DHW control via the boiler regulation is not used). In
menu 1. Temperature the minimum temperature of the hydraulic crossover switch can be set 1.4. Min. Temp.
CRO. If required, the BUF-CRO pump can be activated to run continuously (for example against freezing) in
menu 4. Operation -> 4.6.Pump CRO Const

2.1.1. MOTOR DRIVE OPENING TIME (only for authorized persons)
Motor drive opening time
After selecting any option with motor drive (protection valve or motor drive) boiler control unit always
automatically go to option for adjusting time for opening / closing of mixing valve. It’s neccessary to input
opening time of mixing valve (protection valve or motor drive)(marked on motor drive from manufactorer).
This step are crucial for properly work of mixing valve and motor drive. If you not sure in opening time of
valve (protection valve or motor drive) then is neccessary to go in manual test (see point 3.4.1. in this
technical manuals) and measure how long is neccessary to valve for open / close (for detailed description
of protection valve see point 3.4.1.1. „Protection valve” in this technical manuals). Valve opening time
(protection valve or motor drive) can be done and in „Installation” menu and only authorized serviceman
can input that parameter. Descrtiption of opening time manual input of protection valve see in point 2.1.1.1,
for motor drive see point 2.1.1.2. in this technical manuals.
* * * *
Cleaning
2.1.1.1. PROTECTION VALVE - OPENING TIME
Technical instructions REGULATION BioTec-L 19

Motor drive opening time
2.1.1.1 OPENING TIME - Motor drive
9. Installation
Technical instructions REGULATION BioTec-L
20