Samson TROVIS 5474 Mounting And Operating Instructions
Automation System 5400
Boiler Controller
TROVIS 5474
Electronics from SAMSON
Mounting and
Operating Instructions
EB 5474 EN
®
Firmware version 2.0x
Edition July 2004
Disclaimer of liability
Disclaimer of liability
We areconstantly developing our products and therefore, reservethe right to change the prod
uct or the information contained in this document at any time without notice.
We do not assume any liability for the accuracy or completeness of these mounting and
operating instructions. Moreover, we do not guaranteethat thebuyer can use the product for an
intended purpose. SAMSON rejects any liability for claims by the buyer, especially claims for
compensation including lost profits or any other financial loss, except the damage was caused
intentionally or by gross negligence. If an essential term of the contract is breached by
negligence, SAMSON’s liability is limited to the foreseeable damage.
Safety instructions
The device may only be assembled, started up or operated by trained and
4
experienced personnel familiar with the product. Proper shipping and
appropriate storage are assumed.
The controller has been designed for use in electrical power systems. For
4
wiring and maintenance, you are required to observe the relevant safety
regulations.
The Safety shutdown function (section 8.10) does not replace the safety tem-
4
perature limiter as the boiler controller is not a safety-relevant component.
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2 EB 5474 EN
Contents
Contents
1 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.1 Operating elements. . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.1.1 Operating keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.1.2 Operating switches . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.2 Operating modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1.3 Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.4 Displaying data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
1.5 Setting the controller time . . . . . . . . . . . . . . . . . . . . . . . 11
1.6 Setting the times-of-use . . . . . . . . . . . . . . . . . . . . . . . . 13
1.6.1 Entering vacation periods . . . . . . . . . . . . . . . . . . . . . . . 15
1.6.2 Entering public holidays . . . . . . . . . . . . . . . . . . . . . . . . 16
2 Start-up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2.1 Setting the system code number and the boiler rating . . . . . . . . . . 18
2.2 Activating and deactivating functions. . . . . . . . . . . . . . . . . . 19
2.3 Changing parameters . . . . . . . . . . . . . . . . . . . . . . . . . 21
2.4 Enter key number . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2.5 Calibrating sensors . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2.6 Resetting to default values . . . . . . . . . . . . . . . . . . . . . . . 24
3 Manual operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
4 Systems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
5 Boiler functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
5.1 Boiler switching behavior . . . . . . . . . . . . . . . . . . . . . . . 32
5.2 Lag/lead sequence control. . . . . . . . . . . . . . . . . . . . . . . 34
5.2.1 Control without sensor VFg . . . . . . . . . . . . . . . . . . . . . . 34
5.2.2 Outdoor temperature-dependent sequence . . . . . . . . . . . . . . . 34
5.2.3 Capacity-dependent sequence . . . . . . . . . . . . . . . . . . . . . 35
5.2.4 Sequence lock. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
5.2.5 Lag delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
5.3 Change in lag/lead sequence (Anl 4 to 7) . . . . . . . . . . . . . . . 36
5.3.1 Outdoor temperature-dependent change (Anl 5 and 7) . . . . . . . . . 36
5.3.2 Capacity-dependent change (Anl 5 and 7) . . . . . . . . . . . . . . . 36
5.3.3 Operating hours-dependent change (Anl 5 and 7) . . . . . . . . . . . 37
5.3.4 Change with binary input (Anl 4 to 7) . . . . . . . . . . . . . . . . . 37
5.4 Return flow boost . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
5.4.1 Common return flow boost . . . . . . . . . . . . . . . . . . . . . . 38
5.5 Parallel operation (Anl 7) . . . . . . . . . . . . . . . . . . . . . . . 38
EB 5474 EN 3
Contents
5.6 Operating hours counter. . . . . . . . . . . . . . . . . . . . . . . . 38
5.7 Boiler pump control . . . . . . . . . . . . . . . . . . . . . . . . . . 39
5.8 Boiler sensor acting as a thermostat . . . . . . . . . . . . . . . . . . 39
5.9 Modulation feedback . . . . . . . . . . . . . . . . . . . . . . . . . 40
5.10 Operational alarm . . . . . . . . . . . . . . . . . . . . . . . . . . 40
5.11 Return flow sensor acting as a thermostat. . . . . . . . . . . . . . . . 41
6 Functions of the heating circuit . . . . . . . . . . . . . . . . . . . . 42
6.1 Outdoor temperature-dependent advance heating . . . . . . . . . . . 42
6.2 Optimization using a room sensor . . . . . . . . . . . . . . . . . . . 42
7 Functions of the DHW circuit. . . . . . . . . . . . . . . . . . . . . . 44
7.1 DHW heating in the storage tank system (Anl 1 to 3) . . . . . . . . . . 44
7.1.1 Priority circuit (Anl 1 to 3) . . . . . . . . . . . . . . . . . . . . . . . 45
7.2 Forced charging of the DHW storage tank (Anl 1 to 7) . . . . . . . . . 46
7.3 Thermal disinfection (Anl 1 to 3) . . . . . . . . . . . . . . . . . . . . 47
7.4 External DHW demand (Anl 1 to 7) . . . . . . . . . . . . . . . . . . 48
8 System-wide functions . . . . . . . . . . . . . . . . . . . . . . . . 49
8.1 Weather-compensated control . . . . . . . . . . . . . . . . . . . . . 49
8.1.1 Gradient characteristic . . . . . . . . . . . . . . . . . . . . . . . . 50
8.1.2 4-point characteristic . . . . . . . . . . . . . . . . . . . . . . . . . 51
8.2 Fixed set point control . . . . . . . . . . . . . . . . . . . . . . . . . 52
8.3 Differential temperature control using variable weighting factors. . . . . 53
8.4 Deactivation depending on outdoor temperature . . . . . . . . . . . . 53
8.5 Summer mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
8.6 Delayed outdoor temperature adaptation. . . . . . . . . . . . . . . . 54
8.7 Automatic summer time/winter time changeover . . . . . . . . . . . . 55
8.8 Frost protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
8.9 Forced operation of the pumps. . . . . . . . . . . . . . . . . . . . . 56
8.10 Flow temperature limitation . . . . . . . . . . . . . . . . . . . . . . 56
8.11 Control mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
8.11.1 Three-step control . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
8.11.2 On/off control . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
8.11.3 Continuous control . . . . . . . . . . . . . . . . . . . . . . . . . . 58
8.12 Control signal deactivation. . . . . . . . . . . . . . . . . . . . . . . 59
8.13 Processing of external demand. . . . . . . . . . . . . . . . . . . . . 59
8.14 Feedforwarding the outdoor temperature . . . . . . . . . . . . . . . . 59
8.15 Locking of changed settings . . . . . . . . . . . . . . . . . . . . . . 60
9 Operational faults . . . . . . . . . . . . . . . . . . . . . . . . . . 61
4 EB 5474 EN
Contents
9.1 Error list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
9.2 Sensor failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
9.3 Displaying the lead/collective error alarm . . . . . . . . . . . . . . . 62
9.4 Error status register . . . . . . . . . . . . . . . . . . . . . . . . . . 62
9.5 Error alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
9.5.1 Sending text message in case of error . . . . . . . . . . . . . . . . . 64
9.5.2 Sending fax in case of a fault alarm . . . . . . . . . . . . . . . . . . 65
10 Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
10.1 Controller with RS-232 port . . . . . . . . . . . . . . . . . . . . . . 67
10.2 System bus interface in conjunction with cable converters
RS-232/RS-485 (for four-wire bus) . . . . . . . . . . . . . . . . . . 68
10.3 Description of communication parameters to be adjusted . . . . . . . . 69
10.4 Meter bus interface . . . . . . . . . . . . . . . . . . . . . . . . . . 71
10.4.1 Activating the meter bus . . . . . . . . . . . . . . . . . . . . . . . . 71
10.5 Memory module. . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
11 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
12 Electrical connection. . . . . . . . . . . . . . . . . . . . . . . . . . 76
13 Appendix. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
13.1 Function block list . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
13.2 Parameter lists . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
13.3 Displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
13.4 Sensor resistance tables . . . . . . . . . . . . . . . . . . . . . . . 115
13.5 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
13.6 Customer data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
EB 5474 EN 5
Operation
1 Operation
The controller is ready for use with the temperatures and time schedules preset by the manufac
turer.
On start-up, the current time and date need to be set at the controller (–> section 1.5).
1.1 Operating elements
The operating controls are located in the front panel of the controller and protected by a Plexi
glas door.
1.1.1 Operating keys
Changeover key
(press using a pointed object such as a pen)
Switch from the info level to the parameter and configuration level and back
Reset key
(press using a pointed object such as a pen)
Press to reset accessible parameters to their default settings; the controller
must be in the configuration level
Arrow keys
– To scroll within levels
– To change values
Enter key
– To access levels
– Access parameters and functions to edit them
– Confirm settings
– Display set points in the info level
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6 EB 5474 EN
1.1.2 Operating switches
Mode selector switch
Selector switch
2
1
1 1
22O12
Operation
Automatic mode with switchover between
day mode and night mode
Automatic mode with switchover between
day mode and stand-by mode
Day mode (rated operation)
Night mode (reduced operation)
Manual/maintenance mode
Stand-by mode
Boiler 1 and 2 in operation;
automatic lag/lead sequence change
Boiler 1 in operation,
Boiler 2 switched off
Boiler 2 in operation,
Boiler 1 switched off
Boiler 1 and 2 switched off
Boiler 1 and 2 in operation;
Boiler 2 as lead boiler
Boiler 1 and 2 in operation;
Boiler 1 as lead boiler
EB 5474 EN 7
Operation
Correction switch for the flow temperature
Set point set-back by 2.5 °C per notch
No change in set point
Set point raised by 2.5 °C per notch
+
0
1.2 Operating modes
Day mode (rated operation)
Regardless ofthe programmed times-of-use and summer mode,the set points relevant for rated
operation are used by the controller.
Night mode (reduced operation)
Regardless of the programmed times-of-use and summer mode, the set points relevant for reduced operation are used by the controller.
Stand-by mode
The controller is switched off. The boilers only work when there is a demand for DHW or a demand for an external set point. The protective functions remain active.
Automatic mode
During the programmed times-of-use, the controller works in rated operation. Outside these
times-of-use, the controller is in reduced operation or stand-by mode, depending on the set
tings. The controller switches automatically between both operating modes.
Maintenance mode
Pumps are controlled manually (–> section 3).
Control is not possible. Use the maintenancemode just for maintenance purposes and for emis
sion measurements.
The default setting of the circulation pumps is set for constant operation.
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8 EB 5474 EN
1.3 Display
Operation
During operation, the display indicates the current time as well as informationabout the opera
tion of the controller. The times-of-use are represented by black squares below the row of num
bers at the top of the display. Icons indicate the operating status of the controller.
8
1
2
3
4
5
6
7
8
9
1 Automatic operation
2 Rated operation
3 Vacation mode
4 Reduced operation
5 Public holiday mode
6 Summer mode
7 Frost protection
0
123
1
4
2
10
9
10
7
1
2
1
2
56
8 Manual/maintenance
mode
9 Malfunction
10 Boiler and boiler stages
11 Valve in control circuit 1
Open: Left arrow
Closed: Right arrow
12 Boiler pump 1 ON
1211 1314
1617181920
15
1
11 12 13 14 15
2122
24
23
2
13 Valve in control circuit 2
Open: Left arrow
Closed: Right arrow
14 Boiler pump 2 ON
15 DHW heating
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-
Fig. 1 · Icons
The controller status can be displayed in the operating level (–> section 1.4).
EB 5474 EN 9
Operation
1.4 Displaying data
Controller time, measured values, set points and limits, times-of-use, public holidays and vaca
tion periods can be retrieved and displayed in th
131). The various levels are listed in section 13.3.
InF1: Boiler 1
4
InF2: System Anl 1 to 3, Co5 -> Fb13 = ON: Separate heating circuit
4
4
4
4
4
4
Proceed as follows:
System Anl 4 to 7: Boiler 2
InF3: System Anl 1 to 3, Co5 -> Fb13 = ON: Direct heating circuit
InF4: DHW heating
InF5: General information, e.g. times-of-use
InF8: Error initialization
InF9: Modbus and meter bus communication
Select info level.
Open info level.
Scroll to read the various datapoints of the selected info level that appear one after
the other.
Compare the set point/limit with the actual value.
Press both arrows keys simultaneously:
Return to the display with time.
e InF1toInF9
info levels (-> Fig. 10 on page
-
10 EB 5474 EN
Operation
1.5 Setting the controller time
The current time and date need to be set immediately after start-up and after a power failure
lasting longer than 24 hours. This is indicated by the time blinking on the display.
PA5
The time is set in the
Proceed as follows:
9876543210
parameter level.
242322212019181716151413121110
Switch to the configuration and parameter level.
Display:
PA1
9876543210
1
9876543210
242322212019181716151413121110
242322212019181716151413121110
Select PA5 parameter level.
Open PA5 parameter level.
Display: Time
Activate editing mode for the controller time.
blinks.
Change time.
9876543210
242322212019181716151413121110
Confirm time.
Display: Date (Day-Month)
Activate editing mode for the date.
blinks.
Change date.
EB 5474 EN 11
Operation
9876543210
242322212019181716151413121110
Confirm date.
Display: Year
Activate editing mode for the controller time.
blinks.
Change year.
Confirm year.
Exit PA5 parameter level.
Return to the operating level.
Note!
The controller automatically returns to the operating level if the keys are left unpressed for two
minutes.
12 EB 5474 EN
Operation
1.6 Setting the times-of-use
Two times-of-use can be set for each day of the week. If only one time-of-use is required, the
start and stop times of the second time-of-use must be programmed to identical times.
Parameters
Period/day 1–7 PA5 / 1–7, 1 to 7
Start first time-of-use 7:00 PA5 / 00:00 to 24:00h; in steps of 30 minutes
Stop first time-of-use 12:00 PA5 / 00:00 to 24:00h; in steps of 30 minutes
Start second time-of-use 12:00 PA5 / 00:00 to 24:00h; in steps of 30 minutes
Stop second time-of-use 22:00 PA5 / 00:00 to 24:00h; in steps of 30 minutes
Proceed as follows:
9876543210
242322212019181716151413121110
WE Parameter level / Range of values
Switch to the configuration and parameter level.
Display:
PA1
Select PA5 parameter level.
Open PA5 parameter level.
Display: Controller time
9876543210
9876543210
242322212019181716151413121110
242322212019181716151413121110
Select datapoint for times-of-use.
Display:
1
Activate editing mode for times-of-use.
Display: 1–7
Select period/day for which the times-of-use are to be
valid:
1–7 = Monday to Sunday,
1 = Monday, 2 = Tuesday, …, 7 = Sunday
EB 5474 EN 13
Operation
9876543210
START
242322212019181716151413121110
Activate editing mode for period/day.
Display: START; blinks.
Edit start time (steps of 30 minutes).
9876543210
STOP
242322212019181716151413121110
Confirm start time.
Display:
STOP
Edit stop time (steps of 30 minutes).
Confirm stop time.
Display:
START
The second time-of-use is set like the first time-of-use.
To set the times-of-use for each day, repeat the instructions in the fields highlighted in gray.
Select
End
on the display.
Exit the datapoint for times-of-use.
Exit the parameter level.
Return to the operating level.
Note!
Do notuse the 1–7 menu to check the programmed times-of-use. On openingthis menu, the ti
mes-of-use are reset to their default settings.
-
Note!
The controller automatically returns to the operating level if the keys are left unpressed for two
minutes.
14 EB 5474 EN
Operation
1.6.1 Entering vacation periods
When the switch position Automatic operation with switchover between day mode and night
mode is selected, night set points (reduced set points) are used by the controller. When the
switch position Automatic operation with switchover between day mode and stand-by mode
is selected, the system is switched off. The frost protection function remains active.
A maximum of 10 vacation periods may be entered.
Parameter
Vacation periods – PA5 / 01.01 to 31.12
Proceed as follows: Switch to the parameter and configuration level.
9876543210
242322212019181716151413121110
To enter additional vacations, re-select
in the fields highlighted in gray.
Exit the parameter level.
Return to the operating level.
WE Parameter level / Range of value
Display:
PA1
Select PA5 parameter level.
Open PA5 parameter level. Display: Controller time
Select datapoint for vacation period. Display:
Open data point for vacation period. Display:
If applicable, select
– – – –
.
START
Activate editing mode for vacation periods.
blinks.
Set start date of vacation period.
Confirm start date of the vacation period.
Display:
STOP
Set end of vacation period.
Confirm end of the vacation period.
––––
(between 31.12 and 01.01) and repeat the steps
Note!
In systems Anl 1 to 3 with integrated DHW heating (Co5 -> Fb13 = ON), the vacations entered
also apply to the DHW heating with the setting Co4 -> Fb10 = ON.
EB 5474 EN 15
Operation
Vacation periods that are not assigned to a specific date should be deleted by the end of the
year so that they are not carried on into the following year.
Deleting vacation periods:
Select the vacation period you wish to delete in the datapoint for vacation periods.
Confirm selection.
Select
– – – –
.
Delete vacation period.
Note!
The controller automatically returns to the operating level if the keys are left unpressed for two
minutes.
1.6.2 Entering public holidays
The times-of-use programmed for Sunday apply on public holidays. A maximum of 20 public
holidays can be entered.
Parameter
Public holidays – PA5 / 01.01 to 31.12
WE Parameter level / Range of value
Proceed as follows: Switch to the parameter and configuration level.
Display:
PA1
Select PA5 parameter level.
Open PA5 parameter level. Display: Controller time
8
56
4
0
123
9
1211 1314
10
7
1617181920
15
2122
24
23
Select datapoint for public holidays.
Display:
Open datapoint for public holidays.
Display:
If applicable, select
START
– – – –
.
Activate editing mode for public holiday.
blinks.
Edit public holiday.
Confirm public holiday.
16 EB 5474 EN
Operation
To enter additional public holidays, re-select
––––
(between 31.12 and 01.01) and repeat the
steps in the fields highlighted in gray.
Exit the parameter level.
Return to the operating level.
Note!
In systems Anl 1 to 3 with integrated DHW heating (Co5 ->Fb13 =ON), thepublic holidaysen
tered also apply to the DHW heating with the setting Co4 -> Fb10 = ON.
Public holidays that are not assigned to a specific date should be deleted by the end of the year
so that they are not carried on into the following year.
Deleting a public holiday:
Select the holiday you wish to delete in the datapoint for public holidays.
Confirm selection.
– – – –
Select
.
Delete the public holiday.
Note!
The controller automatically returns to the operating level if the keys are left unpressed for two
minutes.
-
EB 5474 EN 17
Start-up
2 Start-up
2.1 Setting the system code number and the boiler rating
7 different hydraulic schematics are available. Each system configuration is represented by a
system code number (Anl). The different schematics are dealt with in section 4. Available con
troller functions are described in sections 5 to 8.
Changing the system code number resets previously adjusted function blocks to their default set
tings (WE). Function block parameters and settingsin theparameter level remain unchanged.
The system code number is set in the parameter and configuration level.
Proceed as follows:
Switch to the parameter and configuration level.
level.
level.
1
Anl 1
PA1
Display shows:
Select
Anl
Open
Anl
Display:
Select system code number (Anl).
-
-
System Anl 1
System Anl 2
System Anl 3
System Anl 4
System Anl 5
System Anl 6
System Anl 7
1
Anl 1
1
Anl 2
2
1
Anl 3
2
1
1
2
Anl 4
1
1
2
1
2
Anl 5
2
1
1
2
2
Anl 6
1
1
2
2
Anl 7
Confirm system code number (Anl).
The burner and stage icons for burner 1 blink.
The boiler rating is shown.
18 EB 5474 EN
Single boiler for one-stage burner
Single boiler for two-stage burner
Single boiler for modulating burner
Double boiler for one-stage condensing boiler and
two-stage low-temperature boiler
Double boiler for 2 two-stage burners
Double boiler for modulating and two-stage burner
Double boiler for two modulating burners
Start-up
Set the required rating.
Set first the capacity of the basic stage and then the total capacity of the burner of
two-stage and modulating burners.
Confirm the rating.
Set the capacity of the second burner in systems Anl 4 to 7.
End
Select
Exit the
Display:
on the display.
Anl
level.
Co1
2.2 Activating and deactivating functions
A function is activated or deactivated in the associated function block. The numbers 0 to 24 in
the top row of the display represent the respective function block numbers. When a configura
tion level is opened, the activated function blocks are indicated by a black square on the
right-hand side below the function block number. The function blocks are described in section 13.2.
The functions are arranged in topic groups:
Co1: Boiler 1
4
Co2: Systems Anl 1 to 3, Co5 -> Fb13 = ON: separate heating circuit
4
Systems Anl 4 to 7: Boiler 2
Co3: Systems Anl 1 to 3, Co5 -> Fb13 = ON: direct heating circuit
4
Co4: DHW heating
4
Co5: General functions
4
Co6: Sensor initialization
4
Co8: Error initialization
4
Co9: Modbus and meter bus communication
4
-
Proceed as follows:
Switch to the parameter and configuration level.
Display shows:
Switch to the configuration level (-> Fig. 10, page 131).
Open the configuration level.
PA1
EB 5474 EN 19
Start-up
Select function block.
Activate editing mode for function block.
The function block number starts to blink.
0 0 0 0
If
section 2.4).
Activate function block (Fb = ON).
An activated function block is indicated by a black square below (right) the function
block number in the top row of the controller display.
or:
Deactivate function block (Fb = OFF).
Confirm setting.
If the function block is not closed, further function block parameters can be adjusted.
Proceed as follows:
Make the desired changes and confirm.
If applicable, the next function block parameter is displayed.
Confirm all parameters to exit the opened function block.
To adjust additional function blocks within the configuration level, repeat the steps in the fields
highlighted in gray.
Exit the configuration level.
Return to the operating level.
appears on the display, the key number needs to be entered first (refer to
Note!
The controller automatically returns to the operating level if the keys are left unpressed for two
minutes.
20 EB 5474 EN
2.3 Changing parameters
Start-up
Depending on the activated functions, not all parameters listed in the parameter list in the Ap
pendix (–> section 13.2) might be available.
The parameters are arranged in topic groups:
PA1: Boiler 1
4
PA2: Systems Anl 1 to 3, Co5 -> Fb13 = ON: separate heating circuit
4
4
4
4
4
Proceed as follows:
To adjust additional parameters, repeat the steps in the fields highlighted in gray.
Systems Anl 4 to 7: Boiler 2
PA3: Systems Anl 1 to 3, Co5 -> Fb13 = ON: direct heating circuit
PA4: DHW heating
PA5: General parameters
PA9: Modbus and meter bus communication
Switch to the parameter and configuration level. Display:
Select parameter level (-> Fig. 10, page 131).
Open the parameter level.
Select parameter.
Activate editing mode for parameter.
Change parameter.
Confirm parameter setting.
Exit the parameter level.
Return to the operating level.
PA1
-
Note!
The controller automatically returns to the operating level if the keys are left unpressed for two
minutes.
EB 5474 EN 21
Start-up
2.4 Enter key number
Some functions are protected against unintentional or unauthorized access. These functions can
only be activated or deactivated after the valid key number has been entered. The valid key
number for initial start-up can be found on page 127. To avoid unauthorized use of the key
number, remove the page or make the key number unreadable.
Proceed as follows:
0 0 0 0
The key number remains active for approx. 10 minutes.
blinks on the display.
Set valid key number.
Confirm key number.
When the correct key number is entered, the function block to be changed blinks on the
display.
When an incorrect key number is entered, the controller returns to the next configuration
level.
2.5 Calibrating sensors
The connected sensors are calibrated in the Co6 configuration level. The following applies:
Co6 -> Fb00 = ON: Pt 100/Pt 1000 sensors mixed (default setting)
4
Co6 -> Fb00 = OFF: Pt 100/PTC sensors mixed
4
The resistance values of the sensors can be found on page 115.
Each universal input can be configured separately.
The function block parameter includes the following types: Ni 200/1000, PTC, NTC,
Pt 100/1000, (0/4 to 20) mA. The function blocks Co6 -> Fb01 to Fb17 correspond to the bi
nary inputs BE1 to BE17 in the terminal wiring plan (–> page 78 onwards).
Activate the function block for the required sensor and select the function block parameter
which matches the type of the input signal.
Note!
Pt 100 orPt 1000 sensor should be used to measure theflow temperature as only these types of
sensor are able to measure temperatures reaching up to 160 °C (maximum temperature of the
flow temperature set point).
-
22 EB 5474 EN
Start-up
If the temperature values displayed at the controller differ from the actual temperatures, the
measured values of all connected sensors can be changed or readjusted. To calibrate a sensor,
the currently displayed sensor value must be changed such that it matches the temperature (ref
erence temperature) measured directly at the point of measurement.
Perform the calibration in function block Fb23 in Co6.
Proceed as follows:
Switch to the parameter and configuration level.
Display:
PA1
Select Co6 configuration level.
Open Co6 configuration level.
Select function block Fb23.
Confirm setting.
Display:
0 0 0 0
Enter currently valid key number.
The function block Fb23 blinks on the display.
Activate function block.
Confirm setting.
Select the function block for the sensor to be calibrated:
The function blocks Co6 -> Fb01 to Fb17 correspond to the binary inputs BE1 to BE17
in the terminal wiring plan (–> page 78 onwards) depending on the selected system
code number (Anl), e.g. Co6 -> Fb03 for sensor VFg (all systems).
Activate editing mode for sensor.
Fb_ blinks on the display.
Display measured temperature.
Activate editing mode for measured temperature.
Measured temperature blinks.
Correct measured temperature.
Read the actual temperature directly from the thermometer at the point of measure
-
ment and enter this value as the reference temperature.
Confirm corrected measured temperature.
Additional sensors are calibrated similarly.
-
EB 5474 EN 23
Start-up
Select function block Fb23.
Activate editing mode for function block Fb23.
Deactivate function block Fb23.
Confirm setting.
Select
End
on the display.
Exit the configuration level.
Return to the operating level.
Note!
The adjusted sensor values are not reset by the function for resetting to default values.
2.6 Resetting to default values
All parametersand function blocks that can be setwithout entering the key number can bereset
to their default settings (WE).
Proceed as follows:
Reset to default settings.
Function blocks and parameters are reset to their default settings (WE).
Note!
Resetting protected parameters to their default settings is only possible when the key number is
still active.
The controller isready foroperation with its default settings. You just need to set the correctdate
and current time.
24 EB 5474 EN
Manual operation
3 Manual operation
All the settings of the outputs canbe setin the manual mode, see wiring plan(-> section12).
Proceed as follows: Set mode selector switch to .
After approx. 10 seconds the boilers start operation at
full capacity. Display:
HAnd
9876543210
242322212019181716151413121110
Select
Open the manual level. Display:
Select output:
bA: 1, 2 BA1 and BA2
3-Pt: 1, 2 BA3 and BA4, BA5 and BA6
1
PU: 1, 2 BA7 and BA8
StUF: 1, 2, 3, 4 BA9 to BA12
AnAL: 1, 2 AA 1, 2 (RK1, RK2)
Activate editing mode for output.
The display blinks.
Activate output, increase value.
Three-point stepping output: OPEN
or:
Deactivate output, decrease value.
Three-point stepping output: CLOSED
and:
Three-point stepping output: STOP
Confirm setting.
The changed values remain valid as long as the manual
mode is active.
Slide mode switch to .
Exit the manual level.
on the display.
bA1
Note!
In manual mode, frost protection does not function.
EB 5474 EN 25
Systems
4 Systems
7 hydraulic schematics are available.
System code
number (Anl)
1
2
3
4
5 Double boiler for 2 two-stage burners Change in lag/lead sequence either
6 Double boiler for modulating und
7 Double boiler for two modulating
System description Comments
Single boiler for one-stage burner
Single boiler for two-stage burner
Single boiler for modulating burner
Double boiler for one-stage condensing boiler
and two-stage low-temperature boiler
two-stage burners
burners
Optionally separate heating circuit
and DHW heating can be controlled
Lag sequence without automatic
lag/lead sequence change
depending on operating hours, on
outdoor temperature or boiler
capacity
Lag sequence without automatic
lag/lead sequence change
Change in lag/lead sequence either
depending on operating hours, on
outdoor temperature or boiler
capacity
26 EB 5474 EN
System Anl 1 with Co5 -> Fb13 = OFF
RK1
RüFg
Systems
VFg
AF
VL
RL
KF1
RüF1
1
Pu1
System Anl 1 with Co5 -> Fb13 = ON
VF2
Pu2
RK2
VFg
RK1
KF1
RüF1
1
Pu1
RüFg
RüF2
K1 One-stage burner
Pu3
SLP
RF
SF1
SF2
AF
K1 One-stage burner
EB 5474 EN 27
Systems
System Anl 2 with Co5 -> Fb13 = OFF
KF1
RüF1
1
2
System Anl 2 with Co5 -> Fb13 = ON
VF2
Pu2
RK2
VFg
Pu1
RK1
RüF2
RüFg
VFg
K1 Two-stage burner
RF
Pu3
AF
VL
RL
AF
28 EB 5474 EN
KF1
RüFg
RK1
Pu1
RüF1
1
2
SLP
SF1
SF2
K1 Two-stage burner
System Anl 3 with Co5 -> Fb13 = OFF
Systems
KF1
RüF1
System Anl 3 with Co5 -> Fb13 = ON
VF2
Pu2
RK2
VFg
Pu1
RK1
RüF2
VFg
RüFg
K1 Modulating burner
Pu3
AF
VL
RL
RF
AF
KF1
RüF1
RK1
Pu1
RüFg
SLP
SF1
SF2
K1 Modulating burner
EB 5474 EN 29
Systems
System Anl 4
System Anl 5
KF1
VFg
RüFg
RK1 RK2
Pu1 Pu2
1
RüF1
KF2
1
2
RüF2
K1 One-stage condensing boiler
VL
RL
AF
K2 Two-stage low-temperature boiler
VFg
RüFg
VL
RL
AF
30 EB 5474 EN
KF1
RK1 RK2
Pu1 Pu2
1
2
RüF1
KF2
1
2
RüF2
K1, K2 Two-stage burner
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