Automation System TROVIS 5500
Heating and District Heating Controller
TROVIS 5579
Mounting and
Operating Instructions
EB 5579 EN
Firmware version 1.8x
Edition April 2009
®
Electronics from SAMSON
Disclaimer of liability
We are constantly developing our products and therefore, reserve the right to change the
product 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 guarantee that the buyer 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
4
The device may only be assembled, started up or operated by trained and
experienced personnel familiar with the product. Proper shipping and appropriate storage are assumed.
4
The controller has been designed for use in electrical power systems. For
wiring and maintenance, you are required to observe the relevant safety
regulations.
2 EB 5579 EN
Disclaimer of liability
Modifications to controller firmware in comparison to previous versions
1.70
(previous)
1.71 (new)
Err 2 message (default setting loaded) is not displayed anymore. See section 8.1.
Single error messages to be forwarded over the device bus and an automatic call to the
building control system in the event of a fault in modem operation can be selected. See
section 7.12.6 and 8.5.
1.71
(previous)
1.82 (new)
An interrupted drying of jointless floors can be continued by selecting the restarting stages
START temperature maintaining phaseorSTART temperature reduction phase
. See section
5.3.
During thermal disinfection, the
Hold time of disinfection temperature
can be used to determine how long the disinfection temperature must be maintained within the adjusted time
period to rate the process successful. See section 6.10.
Besides the release of single control circuits, the release of the controller is possible over
the binary input. See section 7.9.
Contents
1 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.1 Operating elements. . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.1.1 Rotary pushbutton and changeover key . . . . . . . . . . . . . . . . . 7
1.1.2 Rotary switches. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1.2 Operating modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.3 Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
1.4 Displaying data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
1.5 Setting the controller time . . . . . . . . . . . . . . . . . . . . . . . 12
1.6 Setting the times-of-use . . . . . . . . . . . . . . . . . . . . . . . . 13
1.7 Setting the party mode . . . . . . . . . . . . . . . . . . . . . . . . 15
1.8 Activating extended operating level . . . . . . . . . . . . . . . . . . 16
1.8.1 Setting public holidays . . . . . . . . . . . . . . . . . . . . . . . . 17
1.8.2 Setting vacation periods . . . . . . . . . . . . . . . . . . . . . . . . 18
1.9 Setting room and DHW temperature set points . . . . . . . . . . . . . 20
2 Start-up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2.1 Setting the system code number . . . . . . . . . . . . . . . . . . . . 22
2.2 Activating and deactivating functions. . . . . . . . . . . . . . . . . . 23
2.3 Changing parameters . . . . . . . . . . . . . . . . . . . . . . . . . 24
2.4 Calibrating the sensors . . . . . . . . . . . . . . . . . . . . . . . . 25
2.5 Resetting to default values . . . . . . . . . . . . . . . . . . . . . . . 27
3 Manual operation. . . . . . . . . . . . . . . . . . . . . . . . . . . 28
4 Systems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
5 Functions of the heating circuit . . . . . . . . . . . . . . . . . . . . 69
5.1 Weather-compensated control . . . . . . . . . . . . . . . . . . . . . 69
5.1.1 Gradient characteristic . . . . . . . . . . . . . . . . . . . . . . . . 70
5.1.2 4-point characteristic . . . . . . . . . . . . . . . . . . . . . . . . . 72
5.2 Fixed set point control . . . . . . . . . . . . . . . . . . . . . . . . . 73
5.3 Underfloor heating/drying of jointless floors . . . . . . . . . . . . . . 74
5.4 Deactivation depending on outdoor temperature . . . . . . . . . . . . 75
5.4.1 OT deactivation value in rated operation . . . . . . . . . . . . . . . . 75
5.4.2 OT deactivation value in reduced operation . . . . . . . . . . . . . . 75
5.4.3 OT activation value in rated operation . . . . . . . . . . . . . . . . . 76
5.4.4 Summer mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
5.5 Delayed outdoor temperature adaptation. . . . . . . . . . . . . . . . 77
5.6 Remote operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
5.7 Optimization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
EB 5579 EN 3
Contents
5.8 Flash adaptation . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
5.8.1 Flash adaptation without outdoor sensor (room temperature dependent) . 80
5.9 Adaptation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
5.10 Pump management . . . . . . . . . . . . . . . . . . . . . . . . . . 81
6 Functions of the DHW circuit. . . . . . . . . . . . . . . . . . . . . . 83
6.1 DHW heating in the storage tank system . . . . . . . . . . . . . . . . 83
6.1.1 DHW circuit additionally controlled by a globe valve . . . . . . . . . . 85
6.2 DHW heating in the storage tank charging system . . . . . . . . . . . 86
6.3 DHW heating in instantaneous heating system . . . . . . . . . . . . . 88
6.4 DHW heating with solar system . . . . . . . . . . . . . . . . . . . . 89
6.5 Intermediate heating operation . . . . . . . . . . . . . . . . . . . . 90
6.6 Parallel pump operation . . . . . . . . . . . . . . . . . . . . . . . . 90
6.7 Circulation pump operation during storage tank charging. . . . . . . . 91
6.8 Priority operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
6.8.1 Reverse control . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
6.8.2 Set-back operation . . . . . . . . . . . . . . . . . . . . . . . . . . 92
6.9 Forced charging of the DHW storage tank . . . . . . . . . . . . . . . 92
6.10 Thermal disinfection . . . . . . . . . . . . . . . . . . . . . . . . . . 92
7 System-wide functions . . . . . . . . . . . . . . . . . . . . . . . . 95
7.1 Automatic summer time/winter time changeover . . . . . . . . . . . . 95
7.2 Frost protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
7.3 Forced operation of the pumps. . . . . . . . . . . . . . . . . . . . . 96
7.4 Return flow temperature limitation . . . . . . . . . . . . . . . . . . . 96
7.5 Condensate accumulation control . . . . . . . . . . . . . . . . . . . 97
7.6 Three-step control . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
7.7 On/off control . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
7.8 Continuous control . . . . . . . . . . . . . . . . . . . . . . . . . . 99
7.9 Releasing a control circuit/controller over the binary input . . . . . . . 99
7.10 Processing of external demand in Rk1 . . . . . . . . . . . . . . . . 100
7.11 Flow rate/capacity limitation in Rk1 . . . . . . . . . . . . . . . . . 101
7.11.1 Limitation using pulse input. . . . . . . . . . . . . . . . . . . . . . 102
7.11.2 Limitation using 0/4 to 20 mA signal . . . . . . . . . . . . . . . . . 103
7.11.3 Creep feed rate limitation using a binary input . . . . . . . . . . . . 103
7.11.4 Limitation of the calculated capacity . . . . . . . . . . . . . . . . . 104
7.12 Device bus. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
7.12.1 Requesting and processing an external demand . . . . . . . . . . . . 105
7.12.2 Sending and receiving outdoor temperatures . . . . . . . . . . . . . 107
7.12.3 Synchronizing the clock . . . . . . . . . . . . . . . . . . . . . . . 107
4 EB 5579 EN
Contents
7.12.4 Priority over all controllers . . . . . . . . . . . . . . . . . . . . . . 108
7.12.5 Connecting a TROVIS 5570 Room Panel . . . . . . . . . . . . . . . 108
7.12.6 Display error messages issued by the device bus . . . . . . . . . . . 109
7.13 Requesting demand over a 0 to 10 V signal. . . . . . . . . . . . . . 110
7.14 Connecting potentiometers for valve position input. . . . . . . . . . . 110
7.15 Feeder pump operation . . . . . . . . . . . . . . . . . . . . . . . 111
7.16 Locking manual level. . . . . . . . . . . . . . . . . . . . . . . . . 111
7.17 Locking the rotary switches . . . . . . . . . . . . . . . . . . . . . . 111
7.18 Setting a customized key number . . . . . . . . . . . . . . . . . . . 111
8 Operational faults . . . . . . . . . . . . . . . . . . . . . . . . . . 113
8.1 Error list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
8.2 Sensor failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
8.3 Temperature monitoring . . . . . . . . . . . . . . . . . . . . . . . 114
8.4 Collective error message . . . . . . . . . . . . . . . . . . . . . . . 114
8.5 Error status register . . . . . . . . . . . . . . . . . . . . . . . . . 115
8.6 Sending text messages in case of error . . . . . . . . . . . . . . . . 116
9 Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
9.1 RS-232 system bus interface . . . . . . . . . . . . . . . . . . . . . 119
9.2 System bus interface with RS-232/RS-485 cable converters
(for two-wire and four-wire bus) . . . . . . . . . . . . . . . . . . . 120
9.3 Description of communication parameter settings . . . . . . . . . . . 121
9.4 Meter bus interface . . . . . . . . . . . . . . . . . . . . . . . . . 122
9.4.1 Activating the meter bus . . . . . . . . . . . . . . . . . . . . . . . 123
9.4.2 Flow rate/capacity limitation using meter bus . . . . . . . . . . . . . 124
9.5 Memory module . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
9.6 Data logging . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
10 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
11 Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . 130
12 Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
12.1 Function block lists . . . . . . . . . . . . . . . . . . . . . . . . . . 133
12.2 Parameter lists . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152
12.3 Assignment of the rotary switches. . . . . . . . . . . . . . . . . . . 161
12.4 Sensor resistance tables . . . . . . . . . . . . . . . . . . . . . . . 163
12.5 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164
12.6 Customer data. . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176
Frequently used abbreviations . . . . . . . . . . . . . . . . . . . . 182
EB 5579 EN 5
Contents
6 EB 5579 EN
1 Operation
The controller is ready for use with the default temperatures and operating schedules.
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
Plexiglas door.
1.1.1 Rotary pushbutton and changeover key
Rotary pushbutton
Turn q:
Display, select parameters and function blocks
Press :
Confirm adjusted selection or settings
Changeover key
(use pen or any other pointed item to press)
Press to switch between operating level and configuration/
parameter level
EB 5579 EN 7
Operation
*
1.1.2 Rotary switches
Use the three rotary switches to set the required operating mode (icons on the left) and the
relevant parameters (icons on the right) of each control circuit.
The top and middle switches are assigned to the heating circuits (see page 161). The rotary
switch in the middle is not used in systems without a second heating circuit.
The bottom switch is assigned to the DHW circuit (except for systems Anl 5.0, 6.0 and 25.0).
Rotary switch to set the operating modes of the heating circuit
Automatic/time-controlled operation
with switchover between day and night mode
Day mode (rated operation)
Night mode (reduced operation)
Control operation deactivated, frost protection only
Manual operation: correction value adjusted in percent
and activation/deactivation of the pumps
Rotary switch to set the parameters of the heating circuit
Day set point (rated room temperature)
Night set point (reduced room temperature)
Times-of-use for heating
Party mode
Controller time: setting current time, date and year
Rotary switch to set the operating modes of the DHW circuit
Automatic/time-controlled operation
with switchover between times of higher and lower
DHW temperatures
Day mode (DHW temperature set point active)
Night mode (DHW temperature sustained value active)
DHW heating deactivated, frost protection only
Manual operation: correction value adjusted in percent
and activation/deactivation of the pumps
8 EB 5579 EN
Operation
Rotary switch to set the parameters of the DHW circuit
Day set point (DHW temperature)
Night set point (DHW temperature sustained value)
Times-of-use for heating
Party mode
Times-of-use for DHW circulation pump
Note: If more than one rotary switch is set to position “Parameter“ (right side) at the same
time, blinks on the display. The controller cannot be operated.
1.2 Operating modes
Day mode (rated operation)
Regardless of the 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, the set points relevant for reduced operation are
used by the controller.
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, unless control operation is deactivated
depending on the outdoor temperature. The controller switches automatically between both
operating modes.
Manual operation
Valves and pumps can be controlled manually (–> section 3).
EB 5579 EN 9
Operation
1.3 Display
During operation, the display indicates the current time as well as information about the operation of the controller. The times-of-use are represented by black squares below the row of
numbers at the top of the display. Icons indicate the operating status of the controller.
The controller status can be displayed in the operating level (–> section 1.4).
10 EB 5579 EN
Operation
STOP
120
2
3
6
7
8
9
4
5
10 11 12 13 14 15 16 17 18 19
21
22
Fig. 1 · Icons
1 Automatic operation
2 Day mode
(rated operation)
3 Night mode
(reduced operation)
4 Vacation mode
5 Public holiday mode
6 Frost protection
7 Operational fault
8 Circulation pump
UP1*
9 Valve Rk1: OPEN
10 Valve Rk1: CLOSED
11 Storage tank charging
pump SLP
12 Output UP3, bA9*
13 Valve Rk3: OPEN
14 Valve Rk3: CLOSED
15 Circulation pump UP5*
16 DHW demand
17 Circulation pump UP2*
18 Valve Rk2: OPEN
19 Valve Rk2: CLOSED
20 Time-of-use
21 Control circuit assignment:
: Heating circuit Rk1
: Heating circuit Rk2
: Heating circuit Rk3
22 Outdoor temperature
dependent control
deactivated
* UP1, UP2, UP3, SLP, UP5, bA9 indicate possible choices for pump selection in manual mode.
1.4 Displaying data
The time, date, public holidays and vacation periods as well as the temperatures measured
by the connected sensors and their set points can be retrieved and displayed with the help of
the rotary pushbutton.
Note: Data can also be viewed in the manual mode.
To do so, select Info, confirm and proceed as described below.
Proceed as follows:
q
Select value.
Depending on the configuration of the controller, the different data points are displayed:
__:__ Time
Room temperature, heating circuits 1, 2, 3
Outdoor temperature, heating circuits 1, 2, 3
Temperature at flow sensor VF, heating circuits 1, 2, 3
Temperature at flow sensor VF1, primary heat exchanger circuit
Temperature at flow sensor VF2, DHW circuit
Temperature at solar collector sensor VF3
Temperature at return flow sensor RüF
Temperature at storage tank sensor SF1
Temperature at storage tank sensor SF2
Temperature at storage tank sensor SF3
Temperature at flow sensor VF4
Compare the set point/limit value and the actual value.
Press the rotary pushbutton to display the date when the time is indicated on the display.
EB 5579 EN 11
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
of more than 24 hours has occurred. This is the case when the time blinks on the display.
Proceed as follows:
Turn the top rotary switch to position “Controller
time“ (right side).
Display shows: time
q
Edit the controller time.
Confirm the adjusted time.
Display shows: year
q
Edit the year.
Confirm the adjusted year.
Display shows: date (day.month)
q
Edit the date.
Confirm the adjusted date.
Display shows: time
Return the rotary switch to the required operating mode
(left side).
12 EB 5579 EN
Operation
2423222120191817161514131211109876543210
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
242322212019181716151413121110
9876543210
1.6 Setting the times-of-use
Three 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
set to identical times. In this case, the third time-of-use is not displayed.
If only two times-of-use are required, the start and stop times of the third time-of-use must be
set to identical times.
The times-of-use for the different control circuits are set at the rotary switches one after the
other:
Times-of-use Rotary switch Position
Heating circuit 1* Top
Heating circuit 2* Middle
DHW heating/heating circuit 3* Bottom
Circulation pump Bottom
* Refer to page 161 for assignment
Parameters
WE* Range of values
Period/day 1–7 1–7, 1, 2, 3, 4, 5, 6, 7 with 1–7 = every day,
1 = Monday, 2 = Tuesday, ..., 7 = Sunday
Start first time-of-use 6:00 0:00 to 24:00h; in steps of 15 minutes
Stop first time-of-use 22:00 0:00 to 24:00h; in steps of 15 minutes
Start second time-of-use 22:15 0:00 to 24:00h; in steps of 15 minutes
Stop second time-of-use 22:15 0:00 to 24:00h; in steps of 15 minutes
Start third time-of-use – 0:00 to 24:00h; in steps of 15 minutes
Stop third time-of-use – 0:00 to 24:00h; in steps of 15 minutes
* Default values (WE) valid for heating circuit 1/primary heat exchanger circuit (top rotary switch)
EB 5579 EN 13
Operation
Proceed as follows: Turn appropriate rotary switch to position
“Times-of-use”.
Display shows:
1–7
q
Select period/day for which the times-of-use are to be
valid:
1–7 = every day,
1 = Monday, 2 = Tuesday, ..., 7 = Sunday
Activate editing mode for period/day.
Display shows:
START
, blinks
q
Edit start time (steps of 15 minutes).
Confirm start time.
Display shows:
STOP
q
Edit stop time (steps of 15 minutes).
Confirm stop time.
Display shows:
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.
Return the rotary switch to the required operating mode (left side).
Note: Do not use the 1–7 menu to check the programmed times-of-use.
If this menu is opened after the times-of-use have been set, the schedule programmed for
Monday is also adopted for all other days of the week.
14 EB 5579 EN
Operation
0123456789101112131415161718192021222324
STOP
0123456789101112131415161718192021222324
START
0123456789101112131415161718192021222324
1.7 Setting the party mode
Using the Party mode function, the controller continues or activates the rated operation of
the controller during the time when the party timer is active, regardless of the programmed
times-of-use. The party timer begins when the rotary switch has been returned to operating
mode “Automatic“. When the party timer has elapsed, the party timer is reset to 00:00.
The party modes for the different control circuits are set at the rotary switches one after the
other:
Party timer Rotary switch Position
Heating circuit 1* Top
Heating circuit 2* Middle
DHW heating/heating circuit 3* Bottom
* Refer to page 161 for assignment
Parameter
WE Range of values
Continue/activate rated operation 0 h 0 to 48 hours
Proceed as follows:
Turn appropriate rotary switch to “Party mode“.
Display shows:
00:00
or the remaining time of the party timer
q
Edit desired length of the one-off time-of-use.
Return the rotary switch to operating mode “Automatic“ (left side).
Note: Elapsing of the party timer is displayed in steps of 15 minutes.
EB 5579 EN 15
Operation
1.8 Activating extended operating level
After the key number 1999 has been entered, the following information can be viewed and
edited after the data points listed in section 1.4 have been displayed:
4
Heat capacity
4
Flow rate
4
Public holidays (can be changed)
4
Vacation periods (can be changed)
4
Valve positions
4
Modem status information
4
Meter bus status information
4
Switching states of the binary inputs
4
Info 2 · The following data appears in the sequence shown below:
Controller ID (refer to section 8.6)
Memory capacity of data logging module (section 9.6)
Modbus station address (refer to section 9.3)
Operating hours of solar circuit pump (refer to section 6.4)
Water flowmeter (refer to section 6.3)
Opening the extended operating level:
Switch to configuration and parameter level.
Display shows:
0 0 0 0
q
Set key number 1999.
Confirm key number.
Display shows: time
Note: The additional information is hidden when the key number 1999 is entered again.
16 EB 5579 EN
Operation
1.8.1 Setting public holidays
On public holidays, the times-of-use specified for Sunday apply. A maximum of 20 public
holidays may be entered.
Parameter
WE Level / Range of values
Public holidays – Extended operating level / 01.01 (1 Jan) to 31.12 (31 Dec)
Proceed as follows:
q
In extended operating level, select public holidays.
Display shows:
Open data point for public holidays.
q
If applicable, select
– – – –
.
Activate editing mode for public holiday. blinks.
q
Edit desired public holiday.
Confirm public holiday.
To enter additional public holidays, re-select
– – – –
and repeat the steps in the fields high-
lighted in gray.
Exit data point for public holiday.
Note: Public holidays can also be entered in PA5 parameter level (–> section 2.3).
Deleting a public holiday:
q
Under data point for public holidays, select the holiday you wish to delete.
Confirm selection.
q
Select
– – – –
.
Delete the public holiday.
Note: 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.
EB 5579 EN 17
Operation
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
1.8.2 Setting vacation periods
During vacation periods, the controller constantly remains in reduced operation. A maximum
of 10 vacation periods can be entered. Each vacation period can be separately assigned to
the heating circuits Rk1 to Rk3 and/or the DHW circuit.
Parameter
WE Level / Range of values
Vacation period (START, STOP) – Extended operating level / 01.01 to 31.12
Proceed as follows:
q
In extended operating level, select vacation periods.
Display shows:
Open data point for vacation periods.
Display shows:
START
, – –.– – (day.month)
q
If applicable, select
– – – –
.
Activate editing mode for start date of vacation period.
blinks.
q Edit start date of vacation period.
Confirm start date of the vacation period.
Display shows:
STOP, – –.– –
(day.month)
q
Edit end of vacation period.
Confirm end of vacation period.
Black squares under 1 to 4 at the top of the display
indicate the assignment of the vacation periods to the
individual control circuits.
q
Select the control circuit to which the current vacation
period should apply.
Current vacation period applies to circuit Rk1
Current vacation period applies to circuit Rk2
Current vacation period applies to circuit Rk3
Current vacation period applies to DHW circuit
The vacation period can be assigned to a single control
circuit or any combination of all four circuits (Rk1 to
Rk3, DHW circuit).
To enter additional vacation periods, re-select
– – – –
and repeat the steps in the fields
highlighted in gray.
18 EB 5579 EN
Operation
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
Exit data point for vacation periods.
Note: Vacation periods can also be entered in PA5 parameter level (–> section 2.3).
Deleting vacation periods:
q
Under data point for vacation periods, select the start date of the period you wish to delete.
Confirm selection.
q
Select
– – – –
.
Delete vacation period.
Note: Vacation periods should be deleted by the end of the year so that they are not carried
on into the following year.
EB 5579 EN 19
Operation
1.9 Setting room and DHW temperature set points
For the heating circuits, the required room temperatures during the day (
Day set point
) and
during the night (
Night set point
) can be set.
In the DHW circuit, the temperature you wish the DHW to be heated to can be set.
The temperature set points for the different control circuits are set at the rotary switches one
after the other:
Desired temperature set point Switch Position
Heating circuit 1*: Day set point Top
Heating circuit 1*: Night set point Top
Heating circuit 2*: Day set point Middle
Heating circuit 2*: Night set point Middle
DHW heating*: DHW temperature set point Bottom
Heating circuit 3*: Day set point
DHW heating*: DHW temperature sustained value Bottom
Heating circuit 3*: Night set point
* Refer to page 161 for assignment
Parameters
WE Rotary switch / Range of values
Day set point 20 °C Top, middle / 0 to 40 °C
Night set point 15 °C Top, middle / 0 to 40 °C
DHW temperature set point 55 °C Bottom / Min. to max. DHW temperature
Proceed as follows:
Turn appropriate rotary switch to “Set point temperature“.
Display shows: temperature
q
Set temperature value.
Return the rotary switch to the required operating mode (left side).
20 EB 5579 EN
Operation
EB 5579 EN 21
Operation
Fig. 2 · Level structure of TROVIS 5579
PA1/CO1: Heating circuit Rk1 ( )
PA2/CO2: Heating circuit Rk2 ( )
PA3/CO3: Heating circuit Rk3 ( )
PA4/CO4: DHW heating
PA5/CO5: System-wide parameters
PA6/CO6: Communication
parameters/Modbus,
meter bus communication
CO7: Device bus
CO8: Initialization of free
inputs
Anl: System code number
q
Configuration and
parameter level
(start-up, see section 2)
PA3
PA4
PA5
PA6
CO8
CO7
CO6
CO1CO2
PA2Anl
q
Operating level
(display of time and
operation, see section 1)
CO3CO4CO5
& key number
End PA1
2 Start-up
The modifications of the controller configuration and parameter settings described in this section can only be performed after the valid key number has been entered.
The valid key number for initial start-up can be found on page 179. To avoid unauthorized
use of the key number, remove the page or make the key number unreadable. In addition, it
is possible to enter a new, customized key number (–> section 7.18).
2.1 Setting the system code number
61 different hydraulic schematics are available. Each system configuration is represented by
a system code number. The different schematics are dealt with in section 4. Available controller functions are described in sections 5, 6 and 7.
Changing the system code number resets previously adjusted function blocks to their default
settings (WE). Function block parameters and parameter level settings remain unchanged.
The system code number is set in the configuration level.
Proceed as follows:
Switch to configuration and parameter level.
Display shows:
0 0 0 0
q
Set valid key number.
Confirm key number.
Display shows:
PA1
q
Select
Anl
(-> Fig. 2).
Activate editing mode for the system code number.
q
Edit system code number.
Confirm system code number.
Display shows:
End
Return to operating level.
22 EB 5579 EN
Start-up
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 configuration level is opened, the activated function blocks are indicated by a black square on
the right-hand side below the function block number. For more details on function blocks, refer to section 12.1.
The functions are grouped by topics:
4
CO1: Heating circuit Rk1
4
CO2: Heating circuit Rk2
4
CO3: Heating circuit Rk3
4
CO4: DHW heating
4
CO5: System-wide functions
4
CO6: Modbus and meter bus communication
4
CO7: Device bus
4
CO8: Initialization of free inputs
Proceed as follows:
Switch to configuration and parameter level.
Display shows:
0 0 0 0
q
Set valid key number.
Confirm key number.
Display shows:
PA1
q
Select configuration level (-> Fig. 2).
Open configuration level.
q
Select function block.
Activated function blocks are marked by “- 1“.
Deactivated function blocks are marked by “- 0“.
Activate editing mode for the function block.
F__
blinks.
q
Activate the function block.
Display shows:
F__ - 1
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:
EB 5579 EN 23
Start-up
q
Deactivate the function block.
Display shows:
F__ - 0
Confirm settings.
If the function block is not closed, further function block parameters can be adjusted.
Proceed as follows:
Make the required 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, repeat the steps in the fields highlighted in gray.
q
Select
End
.
Exit configuration level.
q
Select
End
.
Return to operating level.
2.3 Changing parameters
Depending on the set system code number and the activated functions, not all parameters
listed in the parameter list in the Appendix (–> section 12.2) might be available.
The parameters are grouped by topics:
4
PA1: Heating circuit Rk1 ( )
4
PA2: Heating circuit Rk2 ( )
4
PA3: Heating circuit Rk3 ( )
4
PA4: DHW heating
4
PA5: System-wide parameters
4
PA6: Communication parameters
4
PA7: Not used
4
PA8: Not used
24 EB 5579 EN
Start-up
Proceed as follows:
Switch to configuration and parameter level.
Display shows:
0 0 0 0
q
Set valid key number.
Confirm key number.
Display shows:
PA1
q
Select parameter level (-> Fig. 2).
Open parameter level.
q
Select desired parameter.
Activate editing mode for the parameter.
q
Edit the parameter.
Confirm the parameter.
To adjust additional parameters, repeat the steps in the fields highlighted in gray.
q
Select
End
.
Exit parameter level.
q
Select
End
.
Return to the operating level.
2.4 Calibrating the sensors
The connected sensors are calibrated in CO5 configuration level.
The following applies:
4
CO5 -> F01 - 1, CO5 -> F02 - 0, CO5 -> F03 - 0: Pt 1000 (Pt 100) sensors (default)
4
CO5 -> F01 - 0, CO5 -> F02 - 0, CO5 -> F03 - 0: PTC (Pt 100) sensors
4
CO5 -> F01 - 0, CO5 -> F02 - 1, CO5 -> F03 - 0: NTC (Pt 100) sensors
4
CO5 -> F01 - 1, CO5 -> F02 - 1, CO5 -> F03 - 0: Ni 1000 (Pt 100) sensors
4
CO5 -> F01 - 0, CO5 -> F02 - 0, CO5 -> F03 - 1: Pt 500 (Pt 100) sensors
The resistance values of the sensors can be found on page 163.
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 (reference temperature) measured directly at the point of measurement.
EB 5579 EN 25
Start-up
Sensor calibration is to be activated in CO5 via function block F20.
An incorrect sensor calibration can be deleted by setting F20 - 0.
Proceed as follows:
Switch to configuration and parameter level. Display shows:
0 0 0 0
q
Set valid key number.
Confirm key number. Display shows:
PA1
q
Select configuration level CO5.
Open configuration level CO5.
q
Select function block F20.
Activate editing mode for function block F20.
q
Select appropriate sensor icon:
Room sensor RF, heating circuits 1, 2, 3
Outdoor sensor AF, heating circuits 1, 2, 3
Flow sensor VF, heating circuits 1, 2, 3
Flow sensor VF1, primary heat exchanger circuit
Flow sensor VF2, DHW circuit
Solar collector sensor VF3
Return flow sensor RüF
Storage tank sensor SF1
Storage tank sensor SF2
Storage tank sensor SF3
Flow sensor VF4
Display measured value.
Measured value blinks.
26 EB 5579 EN
Start-up
q
Correct measured value.
Read the actual temperature directly from the thermometer at the point of measurement
and enter this value as the reference temperature.
Confirm corrected measured value.
Additional sensors are calibrated similarly.
q
Select
End
.
Exit configuration level.
q
Select
End
.
Return to operating level.
2.5 Resetting to default values
All parameters set over the rotary switches as well as parameters in PA1, PA2, PA3 and PA5
parameter levels can be reset to their default settings (WE -> refer to section 12.2), except
for the maximum flow temperature and the return flow temperature limits in PA1, PA2, PA3.
Proceed as follows:
Switch to configuration and parameter level.
q
Set key number 1991.
Confirm key number.
EB 5579 EN 27
Start-up
3 Manual operation
Switch to manual mode to configure all outputs (see wiring diagram in section 11).
The manual operation for the different control circuits is set at the rotary switches:
Manual operation Rotary switch Position
Heating circuit 1* Top
Heating circuit 2* Middle
DHW heating/heating circuit 3* Bottom
* Refer to page 161 for assignment
Proceed as follows:
Turn appropriate rotary switch to position “Manual operation“.
q
Select:
POS_ : Correction value in percent
UP_: Activation of the circulation pump
SLP: Activation of the storage tank charging pump
Confirm selection.
Display blinks.
q
Edit the correction value or activate/deactivate the circulation pump, etc.
Confirm edited settings.
The modified values remain active as long as the controller is in manual mode.
Return the rotary switch to the required operating mode (left side).
Manual operation of the selected control circuit is deactivated by switching to any other
operating mode.
Note: Simply setting the rotary switch to position “Manual operation“ has no influence on
the outputs. You have to actually enter a correction value or activate/deactivate the pumps to
configure the outputs.
In manual mode, frost protection (–> section 7.2) is not activated.
28 EB 5579 EN
Manual operation
4 Systems
61 different hydraulic schematics are available.
The systems can be configured both as primary and secondary systems. The fundamental hydraulic differences between a primary and a secondary system are illustrated in Fig. 3.
4
1. A mixing valve replaces the heat exchanger in the heating/DHW circuit
4
2. A storage tank charging pump replaces the primary solenoid/thermoelectric valve
The controller settings do not have to be changed.
EB 5579 EN 29
Systems
BE
BA
AE
AA
BE
BA
AE
AA
RüF1 VF1UP1RK1/Y1 RK1/Y1RF1 VF1UP1 RüF1 RF1
BE
BA
AE
AA
WW
KW
SF1SLP
BE
BA
AE
AA
WW
KW
SF1SLP
1.
Primary system
Secondary system
Primary system
2.
Secondary system
Fig. 3 · Differences between primary and secondary systems
Boiler systems:
Single-stage boiler systems can be configured to include any system whose heating circuits
and DHW circuit include just one heat exchanger. These systems are Anl 1.0, 1.5 to 1.8,
2.x, 3.x, 4.0 to 4.3, 5.x, 6.0, 7.x, 8.x and 9.x.
The boiler can be controlled by an on/off output (CO1 -> F12 - 0).
30 EB 5579 EN
Systems
RK1/Y1 RüF1 VF1 UP1 RF1
BE
BA
AE
AA
RK1_on/off VF1 UP1 RF1
BE
BA
AE
AA
Fig. 4 · Configuration of a boiler system
Boiler
single-stage
System Anl 1.0
Default settings
CO1 -> F01 - 0 (without RF1)
CO1 -> F02 - 1 (with AF1)
CO1 -> F03 - 1 (with RüF1)
EB 5579 EN 31
Systems
BE
BA
AE
AA
AF1RüF1 VF1UP1RK1/Y1 RF1
Systems Anl 1.1 to 1.4
System Anl 1.1 Anl 1.2 Anl 1.3 Anl 1.4
Type of DHW heating Type 1 Type 2 Type 3 Type 4
1)
XX = SLP UP2 SLP UP2
Integration of flow sensor VF4 Possible Possible Possible Possible
ZP integration with CO4 ->
F10 - 1 (broken line, see cover)
– Not possible – Not possible
Note –
Only second-
ary system
–
Only second-
ary system
Default settings
CO1 -> F01 - 0 (w/o RF1) - 0 (w/o RF1) - 0 (w/o RF1) - 0 (w/o RF1)
CO1 -> F02 - 1 (with AF1) - 1 (with AF1) - 1 (with AF1) - 1 (with AF1)
CO1 -> F03 - 1 (with RüF1) - 0 (w/o RüF1) - 1 (with RüF1) - 0 (w/o RüF1)
CO4 -> F01 - 1 (with SF1) - 1 (with SF1) - 1 (with SF1) - 1 (with SF1)
CO4 -> F02 - 0 (w/o SF2) - 1 (with SF2) - 0 (w/o SF2) - 1 (with SF2)
CO4 -> F05 - 0 (w/o VF4) - 0 (w/o VF4) - 0 (w/o VF4) - 0 (w/o VF4)
32 EB 5579 EN
Systems
UP1 XX
1)
AF1 RK1/Y1 VF1 RüF1 RF1
BE
BA
AE
AA
DHW
heating
Unfold back cover!
Systems Anl 1.5 and 1.7
System Anl 1.5 Anl 1.7
Type of DHW heating Type 1 Type 3
Integration of flow sensor VF4 Not possible Not possible
Default settings
CO1 -> F03 - 1 (with RüF1)
CO4 -> F01 - 1 (with SF1)
CO4 -> F02 - 0 (without SF2)
EB 5579 EN 33
Systems
BE
BA
AE
AA
SLPRüF1 VF1RK1/Y1
DHW
heating
Unfold back cover!
Systems Anl 1.6 and 1.8
System
Anl 1.6
With pre-control
Anl 1.8
With pre-control
Anl 1.6
W/o pre-control
Anl 1.8
W/o pre-control
Type of DHW heating Type 2 Type 4 Type 2 Type 4
Integration of VF4, UP1 • –
ZP integration with CO4 ->
F10 - 1 (broken line, see cover)
Possible Possible
Note –
VF1 takes the position of VF4;
RüF1 is to be installed in the heat
exchanger
Default settings
CO1 -> F03 - 1 (with RüF1)
CO4 -> F01 - 1 (with SF1)
CO4 -> F02 - 1 (with SF2)
CO4 -> F05 - 0 (without VF4)
34 EB 5579 EN
Systems
BE
BA
AE
AA
RüF1RK1/Y1
UP1 VF1
DHW
heating
Unfold back cover!
System Anl 1.9
System Anl 1.9 with pre-control Anl 1.9 without pre-control
Integration of VF4, UP2 Possible Not possible
Note
–
VF2 takes the position of VF4
Default settings
CO4 -> F01 - 0 (without SF1)
CO4 -> F03 - 0 (without RüF2)
CO4 -> F04 - 0 (without water flowmeter at BE17)
CO4 -> F05 - 0 (without VF4)
EB 5579 EN 35
Systems
BE
BA
AE
AA
RK2/Y2
UP2 VF2
WW
KW
ZP
VF4
BE17
SF1
RüF2
System Anl 2.0
Default settings
CO1 -> F01 - 0 (without RF1)
CO1 -> F02 - 1 (with AF1)
CO1 -> F03 - 1 (with RüF1)
CO4 -> F01 - 1 (with SF1)
CO4 -> F02 - 0 (without SF2)
36 EB 5579 EN
Systems
BE
BA
AE
AA
WW
KW
AF1ZP RüF1 VF1 UP1
BA9 SF1RK1/Y1 RF1
Systems Anl 2.1 to 2.4
System Anl 2.1 Anl 2.2 Anl 2.3 Anl 2.4
Type of DHW heating Type 1 Type 2 Type 3 Type 4
1)
XX = SLP UP2 SLP UP2
Integration of flow sensor VF4 Not possible Possible Not possible Possible
ZP integration with CO4 ->
F10 - 1 (broken line, see cover)
– Not possible – Not possible
Default settings
CO1 -> F01 - 0 (w/o RF1) - 0 (w/o RF1) - 0 (w/o RF1) - 0 (w/o RF1)
CO1 -> F02 - 1 (with AF1) - 1 (with AF1) - 1 (with AF1) - 1 (with AF1)
CO1 -> F03 - 1 (with RüF1) - 1 (with RüF1) - 1 (with RüF1) - 1 (with RüF1)
CO4 -> F01 - 1 (with SF1) - 1 (with SF1) - 1 (with SF1) - 1 (with SF1)
CO4 -> F02 - 0 (w/o SF2) - 1 (with SF2) - 0 (w/o SF2) - 1 (with SF2)
CO4 -> F05 - 0 (w/o VF4) - 0 (w/o VF4)
EB 5579 EN 37
Systems
BE
BA
AE
AA
AF1
RüF1 VF1
UP1RK1/Y1 RF1
XX
1)
DHW
heating
Unfold back cover!
System Anl 3.0
Default settings
CO1 -> F02 - 1 (with AF1)
CO1 -> F03 - 1 (with RüF1)
CO2 -> F01 - 0 (without RF2)
CO2 -> F03 - 0 (without RüF2)
38 EB 5579 EN
Systems
BE
BA
AE
AA
AF1RüF1 VF1 UP2
RK2/Y2RK1/Y1
RF2
VF2
RüF2UP1 UP1
Systems Anl 3.1 to 3.4
System Anl 3.1 Anl 3.2 Anl 3.3 Anl 3.4
Type of DHW heating Type 1 Type 2 Type 3 Type 4
1)
XX = SLP UP1 SLP UP1
Integration of flow sensor VF4 Not possible Possible Not possible Possible
ZP integration with CO4 ->
F10 - 1 (broken line, see cover)
– Not possible – Not possible
Note –
–
Binary output
BA9 replaced
by UP1
Three-step signal
Rk2 only with
C05->F18-1
(BA9 repl. UP3)
Default settings
CO1 -> F02 - 1 (with AF1) - 1 (with AF1) - 1 (with AF1) - 1 (with AF1)
CO1 -> F03 - 1 (with RüF1) - 1 (with RüF1) - 1 (with RüF1) - 1 (with RüF1)
CO2 -> F01 - 0 (w/o RF2) - 0 (w/o RF2) - 0 (w/o RF2) - 0 (w/o RF2)
CO2 -> F03 - 0 (w/o RüF2) - 0 (w/o RüF2) - 0 (w/o RüF2) - 0 (w/o RüF2)
CO4 -> F01 - 1 (with SF1) - 1 (with SF1) - 1 (with SF1) - 1 (with SF1)
CO4 -> F02 - 0 (w/o SF2) - 1 (with SF2) - 0 (w/o SF2) - 1 (with SF2)
CO4 -> F05 - 0 (w/o VF4) - 0 (w/o VF4)
EB 5579 EN 39
Systems
BE
BA
AE
AA
AF1
RüF1
VF1
UP2
RK2/Y2RK1/Y1
RF2
VF2
RüF2 XX
1)
DHW
heating
Unfold back cover!
System Anl 3.5
Note
Control and UP1 are only active during the processing for an
external demand
Default settings
CO1 -> F03 - 1 (with RÜF1)
40 EB 5579 EN
Systems
BE
BA
AE
AA
RüF1 VF1
RK1/Y1 UP1
System Anl 4.0
Default settings
CO1 -> F01 - 0 (without RF1)
CO1 -> F02 - 1 (with AF1)
CO1 -> F03 - 1 (with RüF1)
CO2 -> F01 - 0 (without RF2)
CO2 -> F02 - 0 (without AF2)
CO2 -> F03 - 0 (without RüF2)
EB 5579 EN 41
Systems
BE
BA
AE
AA
AF1
RüF1
VF1
UP2
RK2/Y2RK1/Y1
RF2
VF2
RüF2
RF1
UP1
Systems Anl 4.1 to 4.3
System Anl 4.1 Anl 4.2 Anl 4.3
Type of DHW heating Type 1 Type 2 Type 3
1)
XX = SLP BA9 SLP
Integration of VF4 Not possible Possible Not possible
ZP integration with CO4 ->
F10 - 1 (broken line, see cover)
– Not possible –
Note –
Three-step signal Rk2 only w. C05 -> F18 - 1
(BA9 replaced by UP3)
Default settings
CO1 -> F01 - 0 (w/o RF1) - 0 (w/o RF1) - 0 (w/o RF1)
CO1 -> F02 - 1 (with AF1) - 1 (with AF1) - 1 (with AF1)
CO1 -> F03 - 1 (with RüF1) - 1 (with RüF1) - 1 (with RüF1)
CO2 -> F01 - 0 (w/o RF2) - 0 (w/o RF2) - 0 (w/o RF2)
CO2 -> F02 - 0 (w/o AF2) - 0 (w/o AF2) - 0 (w/o AF2)
CO2 -> F03 - 0 (w/o RüF2) - 0 (w/o RüF2) - 0 (w/o RüF2)
CO4 -> F01 - 1 (with SF1) - 1 (with SF1) - 1 (with SF1)
CO4 -> F02 - 0 (w/o SF2) - 1 (with SF2) - 0 (w/o SF2)
CO4 -> F05 - 0 (w/o VF4)
42 EB 5579 EN
Systems
BE
BA
AE
AA
AF1RüF1
VF1
UP2
RK2/Y2RK1/Y1
RF2
VF2
RüF2 RF1UP1
XX1)
DHW
heating
Unfold
back cover!
System Anl 4.5
Default settings
CO1 -> F01 - 0 (without RF1)
CO1 -> F02 - 1 (with AF1)
CO1 -> F03 - 1 (with RüF1)
CO2 -> F01 - 0 (without RF2)
CO2 -> F02 - 0 (without AF2)
CO2 -> F03 - 0 (without RüF2)
CO4 -> F01 - 1 (with SF1)
CO4 -> F02 - 0 (without SF2)
EB 5579 EN 43
Systems
BE
BA
AE
AA
AF1
RüF1
VF1
UP2
RK2/Y2RK1/Y1
RF2
VF2
RüF2
RF1
UP1
WW
KW
SF1SLP ZP
System Anl 5.0
Default settings
CO1 -> F02 - 1 (with AF1)*
CO1 -> F03 - 1 (with RüF1)
CO2 -> F01 - 0 (without RF2)
CO2 -> F02 - 0 (without AF2 for Rk2)*
CO2 -> F03 - 0 (without RüF2)
CO3 -> F01 - 0 (without RF3)
CO3 -> F02 - 0 (without AF2 for Rk3)*
CO3 -> F03 - 0 (without RüF3)
44 EB 5579 EN
Systems
UP1 UP1
BE
BA
AE
AA
AF1
RüF1
VF1
UP2 UP3
RK2/Y2RK1/Y1
RF2VF2
RüF2 RK3/Y3 RüF3
RF3
VF3
Systems Anl 5.1 and 5.2
EB 5579 EN 45
Systems
BE
BA
AE
AA
AF1
RüF1
VF1
UP2 UP3
RK2/Y2RK1/Y1
RF2VF2
RüF2 RK3/Y3 RüF3
RF3
VF3
XX
1)
DHW
heating
Unfold
back cover!
System
Anl 5.1 Anl 5.2
Type of DHW heating Type 1 Type 2
1)
XX = SLP UP1
Integration of VF4 Not possible Possible
ZP integration with CO4 -> F10
- 1 (broken line, see cover)
– Not possible
Default settings
CO1 -> F02 - 1 (with AF1)* - 1 (with AF1)*
CO1 -> F03 - 1 (with RüF1) - 1 (with RüF1)
CO2 -> F01 - 0 (without RF2) - 0 (without RF2)
CO2 -> F02 - 0 (without AF2 for Rk2)* - 0 (without AF2 for Rk2)*
CO2 -> F03 - 0 (without RüF2) - 0 (without RüF2)
CO3 -> F01 - 0 (without RF3) - 0 (without RF3)
CO3 -> F02 - 0 (without AF2 for Rk3)* - 0 (without AF2 for Rk3)*
CO3 -> F03 - 0 (without RüF3) - 0 (without RüF3)
CO4 -> F01 - 1 (with SF1) - 1 (with SF1)
CO4 -> F02 - 0 (without SF2) - 1 (with SF2)
CO4 -> F05 - 0 (without VF4)
* See page
System Anl 6.0
Default settings
CO1 -> F01 - 0 (without RF1)
CO1 -> F02 - 1 (with AF1)*
CO1 -> F03 - 1 (with RüF1)
CO2 -> F01 - 0 (without RF2)
CO2 -> F02 - 0 (without AF2 for Rk2)*
CO2 -> F03 - 0 (without RüF2)
CO3 -> F01 - 0 (without RF3)
CO3 -> F02 - 0 (without AF2 for Rk3)*
CO3 -> F03 - 0 (without RüF3)
46 EB 5579 EN
Systems
BE
BA
AE
AA
AF1
RüF1
VF1
UP2 UP3
RK2/Y2RK1/Y1
RF2VF2
RüF2 RK3/Y3 RüF3
RF3 UP1 RF1
VF3
Systems Anl 7.1 and 7.2
System Anl 7.1 Anl 7.2
Type of DHW heating Type 1 Type 2
1)
XX = SLP UP2
Integration of VF4 Not possible Possible
ZP integration with CO4 ->
F10 - 1 (broken line, see cover)
– Possible
Default settings
CO1 -> F03 - 1 (with RüF1) - 1 (with RüF1)
CO4 -> F01 - 1 (with SF1) - 1 (with SF1)
CO4 -> F02 - 0 (without SF2) - 1 (with SF2)
CO4 -> F03 - 0 (without RüF2) - 0 (without RüF2)
CO4 -> F05 - 0 (without VF4)
EB 5579 EN 47
Systems
BE
BA
AE
AA
RüF1 VF1
RK2/Y2RK1/Y1
VF2 RüF2
XX1)UP1 UP1
DHW
heating
Unfold back cover!
Systems Anl 8.1 and 8.2
System Anl 8.1 Anl 8.2
Type of DHW heating Type 1 Type 2
1)
XX = SLP UP2
Integration of VF4 Not possible Possible
ZP integration with CO4 ->
F10 - 1 (broken line, see cover)
––
Default settings
CO1 -> F01 - 0 (without RF1) - 0 (without RF1)
CO1 -> F02 - 1 (with AF1) - 1 (with AF1)
CO1 -> F03 - 1 (with RüF1) - 1 (with RüF1)
CO4 -> F01 - 1 (with SF1) - 1 (with SF1)
CO4 -> F02 - 0 (without SF2) - 1 (with SF2)
CO4 -> F03 - 0 (without RüF2) - 0 (without RüF2)
CO4 -> F05 - 0 (without VF4)
48 EB 5579 EN
Systems
BE
BA
AE
AA
AF1
RüF1
VF1
UP1
RK1/Y1 RF1
RK2/Y2
VF2 RüF2
XX1)
DHW heating
Unfold
back cover!
Systems Anl 9.1 and 9.2
System Anl 9.1 Anl 9.2
Type of DHW heating Type 1 Type 2
1)
XX = SLP UP2
Integration of VF4 Not possible Possible
ZP integration with CO4 ->
F10 - 1 (broken line, see cover)
– Possible
Default settings
CO1 -> F02 - 1 (without AF1) - 1 (with AF1)
CO1 -> F03 - 1 (with RüF1) - 1 (with RüF1)
CO3 -> F01 - 0 (without RF3) - 0 (without RF3)
CO3 -> F03 - 0 (without RüF3) - 0 (without RüF3)
CO4 -> F01 - 1 (with SF1) - 1 (with SF1)
CO4 -> F02 - 0 (without SF2) - 1 (with SF2)
CO4 -> F03 - 0 (without RüF2) - 0 (without RüF2)
CO4 -> F05 - 0 (without VF4)
EB 5579 EN 49
Systems
BE
BA
AE
AA
AF1
RüF1
VF1
UP3
RK3/Y3RK1/Y1
RF3VF3
RüF3 RK2/Y2 RüF2VF2
XX
1)
DHW heating
Unfold
back cover!
Systems Anl 9.5 and 9.6
System Anl 9.5 Anl 9.6
Type of DHW heating Type 1 Type 2
1)
XX = SLP UP2
Integration of VF4 Not possible Possible
ZP integration with CO4 ->
F10 - 1 (broken line, see cover)
– Possible
Default settings
CO1 -> F01 - 0 (without RF1) - 0 (without RF1)
CO1 -> F02 - 1 (with AF1) - 1 (with AF1)
CO1 -> F03 - 1 (with RüF1) - 1 (with RüF1)
CO3 -> F01 - 0 (without RF3) - 0 (without RF3)
CO3 -> F02 - 0 (without AF2 for Rk3) - 0 (without AF2 for Rk3)
CO3 -> F03 - 0 (without RüF3) - 0 (without RüF3)
CO4 -> F01 - 1 (with SF1) - 1 (with SF1)
CO4 -> F02 - 0 (without SF2) - 1 (with SF2)
CO4 -> F03 - 0 (without RüF2) - 0 (without RüF2)
CO4 -> F05 - 0 (without VF4)
50 EB 5579 EN
Systems
BE
BA
AE
AA
AF1
RüF1
VF1
UP3
RK3/Y3RK1/Y1
RF3 UP1VF3
RüF3 RF1
RK2/Y2
RüF2VF2
XX
1)
DHW
heating
Unfold
back cover!
System Anl 10.0
Default settings
CO1 -> F01 - 0 (without RF1)
CO1 -> F02 - 1 (with AF1)
CO1 -> F03 - 1 (with RüF1)
CO2 -> F01 - 0 (without RF2)
CO2 -> F02 - 0 (without AF2)
CO2 -> F03 - 1 (with RüF2)
EB 5579 EN 51
Systems
BE
BA
AE
AA
AF1RüF1
VF1
UP1RK1/Y1
RF1
RüF2
VF2 UP2
RK2/Y2 RF2
Systems Anl 10.1 to 10.3
System Anl 10.1 Anl 10.2 Anl 10.3
Type of DHW heating Type 1 Type 2 Type 3
1)
XX = SLP BA9 SLP
Integration of VF4 Possible Possible Possible
ZP integration with CO4 ->
F10 - 1 (broken line, see cover)
– Not possible –
Note
–
3-step signal Rk2 only with CO5 -> F18 - 1
(BA9 replaced by UP3)
Only second. system
Default settings
CO1 -> F01 - 0 (w/o RF1) - 0 (w/o RF1) - 0 (w/o RF1)
CO1 -> F02 - 1 (with AF1) - 1 (with AF1) - 1 (with AF1)
CO1 -> F03 - 1 (with RüF1) - 0 (w/o RüF1) - 1 (with RüF1)
CO2 -> F01 - 0 (w/o RF2) - 0 (w/o RF2) - 0 (w/o RF2)
CO2 -> F02 - 0 (w/o AF2) - 0 (w/o AF2) - 0 (w/o AF2)
CO2 -> F03 - 1 (with RüF2) - 0 (w/o RüF2) - 1 (with RüF2)
CO4 -> F01 - 1 (with SF1) - 1 (with SF1) - 1 (with SF1)
CO4 -> F02 - 0 (w/o SF2) - 1 (with SF2) - 0 (w/o SF2)
CO4 -> F05 - 0 (w/o VF4) - 0 (w/o VF4) - 0 (w/o VF4)
52 EB 5579 EN
Systems
BE
BA
AE
AA
UP1 XX
1)
AF1 RK1/Y1
VF1
RüF1
RF1
UP2
RK2/Y2
VF2
RüF2
RF2
DHW heating
Unfold
back cover!
Systems Anl 11.0 and 11.3
System Anl 11.0 Anl 11.3
Type of DHW heating Type 1 Type 3
Integration of VF4 Not possible Not possible
ZP integration with CO4 ->
F10 - 1 (broken line, see cover)
––
Note
–
Binary output BA9
replaced by UP2
Default settings
CO1 -> F01 - 0 (without RF1)
CO1 -> F02 - 1 (with AF1)
CO1 -> F03 - 1 (with RüF1)
CO4 -> F03 - 0 (without RüF2)
EB 5579 EN 53
Systems
BE
BA
AE
AA
AF1RüF1 RüF2
VF1
UP1RK1/Y1
RF1
RK2/Y2
DHW heating
Unfold back cover!
System Anl 11.1
Default settings
CO1 -> F01 - 0 (without RF1)
CO1 -> F02 - 1 (with AF1)
CO1 -> F03 - 1 (with RüF1)
CO4 -> F01 - 1 (with SF1)
CO4 -> F02 - 0 (without SF2)
CO4 -> F03 - 0 (without RüF2)
54 EB 5579 EN
Systems
BE
BA
AE
AA
WW
KW
UP1 RK1/Y1 VF1 RüF1 RF1 AF1 ZP SLPRüF2 VF2 SF1RK2/Y2
System Anl 11.2
System
Anl 11.2
With pre-control
Anl 11.2
Without pre-control
Type of DHW heating Type 2 Type 2
Integration of VF4, UP2 • –
ZP integration with CO4 ->
F10 - 1 (broken line, see cover)
Possible Possible
Note
–
VF2 takes the position of VF4
Default settings
CO1 -> F01 - 0 (without RF1)
CO1 -> F02 - 1 (with AF1)
CO1 -> F03 - 1 (with RüF1)
CO4 -> F01 - 1 (with SF1)
CO4 -> F02 - 1 (with SF2)
CO4 -> F03 - 0 (without RüF2)
CO4 -> F05 - 0 (without VF4)
EB 5579 EN 55
Systems
BE
BA
AE
AA
WW
KW
AF1
SF2
ZP SLPRüF1
VF1 VF4
RüF2UP1
SF1
RK1/Y1
RK2/Y2 RF1
UP2
VF2
System Anl 11.4
ZP integration with CO4 ->
F10 - 1 (broken line, see cover)
Possible
Default settings
CO1 -> F01 - 0 (without RF1)
CO1 -> F02 - 1 (with AF1)
CO1 -> F03 - 1 (with RüF1)
CO4 -> F01 - 1 (with SF1)
CO4 -> F02 - 1 (with SF2)
CO4 -> F03 - 0 (without RüF2)
56 EB 5579 EN
Systems
BE
BA
AE
AA
SLPRüF1
VF1 VF2
AF1
RüF2UP1RK1/Y1
RK2/Y2 RF1
WW
KW
SF1ZP
UP2 SF3 SF2
VF3
System 11.9
System Anl 11.9 with pre-control Anl 11.9 without pre-control
Integration of VF4, UP2 Possible Not possible
Note
–
VF2 takes the position of VF4
Default settings
CO1 -> F01 - 0 (without RF1)
CO1 -> F021 - 1 (with AF1)
CO1 -> F03 - 1 (with RüF1)
CO4 -> F01 - 0 (without SF1)
CO4 -> F03 - 0 (without RüF2)
CO4 -> F04 - 0 (without water flowmeter at BE17)
CO4 -> F05 - 0 (without VF4)
EB 5579 EN 57
Systems
BE
BA
AE
AA
AF1
RüF1
VF1
UP1RK1/Y1
RK2/Y2 RF1
UP2
VF2
WW
KW
ZP
VF4
BE17
SF1
RüF2
Systems Anl 12.0 and 12.1
System Anl 12.0 Anl 12.1
Type of DHW heating Type 1 Type 1
Integration of VF2, SLP – •
Default settings
CO1 -> F02 - 1 (with AF1) - 1 (with AF1)
CO1 -> F03 - 1 (with RüF1) - 1 (with RüF1)
CO3 -> F01 - 0 (without RF3) - 0 (without RF3)
CO3 -> F03 - 0 (without RüF3) - 0 (without RüF3)
CO4 -> F01 – - 1 (with SF1)
CO4 -> F02 – - 0 (without SF2)
CO4 -> F03 - 0 (without RüF2) - 0 (without RüF2)
58 EB 5579 EN
Systems
BE
BA
AE
AA
AF1
VF2 RüF2
SLP
RK2/Y2
RüF1
VF1
UP3UP1 UP1
RK3/Y3
RK1/Y1
RF3VF3
RüF3
WW
KW
SF1
ZP
System Anl 12.2
System
Anl 12.2
With pre-control
Anl 12.2
Without pre-control
Type of DHW heating Type 2 Type 2
Integration of VF4, UP2 • –
ZP integration with CO4 ->
F10 - 1 (broken line, see cover)
Possible Possible
Note
–
VF2 takes the position of VF4
Default settings
CO1 -> F02 - 1 (with AF1)
CO1 -> F03 - 1 (with RüF1)
CO3 -> F01 - 0 (without RF3)
CO3 -> F03 - 0 (without RüF3)
CO4 -> F01 - 1 (with SF1)
CO4 -> F02 - 1 (with SF2)
CO4 -> F03 - 0 (without RüF2)
CO4 -> F05 - 0 (without VF4)
EB 5579 EN 59
Systems
BE
BA
AE
AA
WW
KW
AF1
SF2
ZP SLP
VF4
RüF2
VF2
UP2
SF1RK2/Y2
RüF1
VF1
UP3
UP1 UP1
RK3/Y3
RK1/Y1
RF3VF3
RüF3
System Anl 12.9
System Anl 12.9 with pre-control Anl 12.9 without pre-control
Integration of VF4, UP2 Possible Not possible
Note
–
VF2 takes the position of VF4
Default settings
CO1 -> F02 - 1 (with AF1)
CO1 -> F03 - 1 (with RüF1)
CO3 -> F01 - 0 (without RF3)
CO3 -> F03 - 0 (without RüF3)
CO4 -> F01 - 0 (without SF1)
CO4 -> F03 - 0 (without RüF2)
CO4 -> F04 - 0 (without water flowmeter at BE17)
CO4 -> F05 - 0 (without VF4)
60 EB 5579 EN
Systems
BE
BA
AE
AA
AF1
VF2
UP2
RK2/Y2
RüF1
VF1
UP3
UP1 UP1
RK3/Y3
RK1/Y1
RF3VF3
RüF3
WW
KW
ZP
VF4
BE17
SF1
RüF2
Systems Anl 13.0 and 13.1
System Anl 13.0 Anl 13.1
Type of DHW heating Type 1 Type 1
Integration of VF2, SLP – •
Default settings
CO1 -> F01 - 0 (without RF1) - 0 (without RF1)
CO1 -> F02 - 1 (with AF1) - 1 (with AF1)
CO1 -> F03 - 1 (with RüF1) - 1 (with RüF1)
CO3 -> F01 - 0 (without RF3) - 0 (without RF3)
CO3 -> F02 - 0 (without AF2 for Rk3) - 0 (without AF2 for Rk3)
CO3 -> F03 - 0 (without RüF3) - 0 (without RüF3)
CO4 -> F01 – - 1 (with SF1)
CO4 -> F02 – - 0 (without SF2)
CO4 -> F03 - 0 (without RüF2) - 0 (without RüF2)
EB 5579 EN 61
Systems
BE
BA
AE
AA
AF1
VF2 RüF2
SLP
RK2/Y2
RüF1
VF1
UP3
UP1
RK3/Y3
RK1/Y1
RF3VF3
RüF3
RF1
WW
KW
SF1
ZP
System Anl 13.2
System
Anl 13.2
With pre-control
Anl 13.2
Without pre-control
Type of DHW heating Type 2 Type 2
Integration of VF4, UP2 • –
ZP integration with CO4 ->
F10 - 1 (broken line, see cover)
Possible Possible
Note
–
VF2 takes the position of VF4
Default settings
CO1 -> F01 - 0 (without RF1)
CO1 -> F02 - 1 (with AF1)
CO1 -> F03 - 1 (with RüF1)
CO3 -> F01 - 0 (without RF3)
CO3 -> F02 - 0 (without AF3 for Rk3)
CO3 -> F03 - 0 (without RüF3)
CO4 -> F01 - 1 (with SF1)
CO4 -> F02 - 1 (with SF2)
CO4 -> F03 - 0 (without RüF2)
CO4 -> F05 - 0 (without VF4)
62 EB 5579 EN
Systems
BE
BA
AE
AA
WW
KW
AF1
SF2
ZP SLP
VF4
RüF2
VF2
UP2
SF1RK2/Y2
RüF1
VF1
UP3
UP1
RK3/Y3
RK1/Y1
RF3VF3
RüF3
RF1
System Anl 13.9
System Anl 13.9 with pre-control Anl 13.9 without pre-control
Integration of VF4, UP2 Possible Not possible
Note
–
VF2 takes the position of VF4
Default settings
CO1 -> F01 - 0 (without RF1)
CO1 -> F02 - 1 (with AF1)
CO1 -> F03 - 1 (with RüF1)
CO3 -> F01 - 0 (without RF3)
CO3 -> F02 - 0 (without AF2 for Rk3)
CO3 -> F03 - 0 (without RüF3)
CO4 -> F01 - 0 (without SF1)
CO4 -> F03 - 0 (without RüF2)
CO4 -> F04 - 0 (without water flowmeter at BE17)
CO4 -> F05 - 0 (without VF4)
EB 5579 EN 63
Systems
BE
BA
AE
AA
AF1
VF2
UP2
RK2/Y2
RüF1
VF1
UP3
UP1
RK3/Y3
RK1/Y1
RF3VF3
RüF3
RF1
WW
KW
ZP
VF4
BE17
SF1
RüF2
System Anl 21.0
Default settings
CO1 -> F01 - 0 (without RF1)
CO1 -> F02 - 1 (with AF1)
CO1 -> F03 - 1 (with RüF1)
CO3 -> F01 - 0 (without RF3)
CO3 -> F02 - 0 (without AF2 for Rk3)
CO3 -> F03 - 0 (without RüF3)
CO4 -> F03 - 0 (without RüF2)
64 EB 5579 EN
Systems
BE
BA
AE
AA
AF1RüF3
VF3VF1
RüF2
UP3UP1 RF1
RK3/Y3
RK2/Y2 RüF1
RK1/Y1
RF3
WW
KW
SF1
ZP
System Anl 21.1
Default settings
CO1 -> F01 - 0 (without RF1)
CO1 -> F02 - 1 (with AF1)
CO1 -> F03 - 0 (without RüF1)
CO3 -> F01 - 0 (without RF3)
CO3 -> F02 - 0 (without AF2 for Rk3)
CO3 -> F03 - 0 (without RüF3)
CO4 -> F01 - 1 (with SF1)
CO4 -> F02 - 0 (without SF2)
CO4 -> F03 - 0 (without RüF2)
EB 5579 EN 65
Systems
BE
BA
AE
AA
AF1
RüF2
RK2/Y2
WW
KW
SF1
ZPSLP
VF2
UP1
UP3
RK1/Y1
RF1VF1
VF3
RüF1
RüF3
RK3/Y3
RF3
System Anl 21.2
System Anl 21.2 with pre-control Anl 21.2 without pre-control
Type of DHW heating Type 2 Type 2
Integration of VF4, UP2 • –
ZP integration with CO4 ->
F10 - 1 (broken line, see cover)
Possible Possible
Note
–
VF2 takes the position of VF4
Default settings
CO1 -> F01 - 0 (without RF1)
CO1 -> F02 - 1 (with AF1)
CO1 -> F03 - 1 (with RüF1)
CO3 -> F01 - 0 (without RF3)
CO3 -> F02 - 0 (without AF3 for Rk3)
CO3 -> F03 - 1 (with RüF3)
CO4 -> F01 - 1 (with SF1)
CO4 -> F02 - 1 (with SF2)
CO4 -> F03 - 0 (without RüF2)
CO4 -> F05 - 0 (without VF4)
66 EB 5579 EN
Systems
BE
BA
AE
AA
WW
KW
AF1
SF2
ZP SLPRüF3
VF3VF1
VF4
RüF2VF2
UP3UP2UP1 RF1 SF1
RK3/Y3
RK2/Y2 RüF1
RK1/Y1
RF3
System Anl 21.9
System Anl 21.9 with pre-control Anl 21.9 without pre-control
Integration of VF4, UP2 Possible Not possible
Note
–
VF2 takes the position of VF4
Default settings
CO1 -> F01 - 0 (without RF1)
CO1 -> F02 - 1 (with AF1)
CO1 -> F03 - 1 (with RüF1)
CO3 -> F01 - 0 (without RF3)
CO3 -> F02 - 0 (without AF2 for Rk3)
CO3 -> F03 - 1 (with RüF3)
CO4 -> F01 - 1 (with SF1)
CO4 -> F03 - 0 (without RüF2)
CO4 -> F04 - 0 (without water flowmeter at BE17)
CO4 -> F05 - 0 (without VF4)
EB 5579 EN 67
Systems
BE
BA
AE
AA
AF1
RüF3
VF3VF1
VF2
UP3UP2UP1 RF1
RK3/Y3
RK2/Y2 RüF1
RK1/Y1
RF3
WW
KW
ZP
VF4
BE17
SF1
RüF2
System Anl 25.0
Default settings
CO1 -> F01 - 0 (without RF1)
CO1 -> F02 - 1 (with AF1)*
CO1 -> F03 - 1 (with RüF1)
CO2 -> F01 - 0 (without RF2)
CO2 -> F02 - 0 (without AF2 for Rk2)*
CO2 -> F03 - 1 (with RüF2)
CO3 -> F01 - 0 (without RF3)
CO3 -> F02 - 0 (without AF2 for Rk3)*
CO3 -> F03 - 1 (with RüF3)
68 EB 5579 EN
Systems
BE
BA
AE
AA
AF1RüF2
VF2VF1
RüF3 VF3
UP2 UP3UP1 RF1
RK2/Y2
RK3/Y3 RüF1
RK1/Y1
RF2 RF3
* In system Anl 25.0, the following applies:
4
With CO1 -> F02 - 1
and CO2 -> F02 - 1
and CO3 -> F02 - 0: AF1 is assigned to circuits Rk1 and Rk3 and AF2 to heating circuit Rk2.
4
With CO1 -> F02 - 1
and CO2 -> F02 - 0
and CO3 -> F02 - 1: AF1 is assigned to circuits Rk1 and Rk2 and AF2 to heating circuit Rk3.
5 Functions of the heating circuit
Which controller functions are available depends on the selected system code number (Anl).
5.1 Weather-compensated control
When weather-compensated control is used, the flow temperature is controlled according to
the outdoor temperature. The heating characteristic in the controller defines the flow temperature set point as a function of the outdoor temperature (–> Fig. 5). The outdoor temperature
required for weather-compensated control can either be measured at an outdoor sensor or
received over the 0 to 10 V input or from a connected device bus.
Functions
WE Configuration
Outdoor sensors AF1, 2 1 CO1, 2, 3 -> F02 - 1
Outdoor temperature received
over 0 to 10 V input
0
–20 °C
50 °C
CO5 -> F23 - 1
Lower transmission range / –30 to 100 °C
Upper transmission range / –30 to 100 °C
If you wish to alternatively receive the outdoor temperature over the device bus, the following additional configurations must be made:
Device bus 0 CO7 -> F01 - 1; device bus address
Receive value AF1 0 CO7 -> F07 - 1; register no.
Receive value AF2 0 CO7 -> F09 - 1; register no.
EB 5579 EN 69
Functions of the heating circuit
20
30
0.2
2.4
2.62.93.2
2.2
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.4
0.6
40
50
60
70
80
90
100
110
120
130
t
VL
[°C]
-20 [
°
C]
t
A
-16-12-8-4048121620
Fig. 5 · Gradient characteristics
t
VL
Flow temperature
t
A
Outdoor temperature
5.1.1 Gradient characteristic
Basically, the following rule applies: a decrease in the outdoor temperature causes the flow
temperature to increase.
By varying the parameters
Gradient
and
Level
, you can adapt the characteristic to your indi-
vidual requirements:
The gradient needs to be increased if the room temperature
drops when it is cold outside.
The gradient needs to be decreased if the room tempera-
ture rises when it is cold outside.
The level needs to be increased and the gradient decreased
if the room temperature drops when it is mild outside.
The level needs to be decreased and the gradient increased
if the room temperature rises when it is mild outside.
70 EB 5579 EN
Functions of the heating circuit
t
VL
t
A
[°C]
[°C]
20 0 –20
t
VL
t
A
[°C]
[°C]
20 0 –20
t
VL
t
A
[°C]
[°C]
20 0 –20
t
VL
t
A
[°C]
[°C]
20 0 –20
Outside the times-of-use, reduced set points are used for control:
The reduced flow set point is calculated as the difference between the adjusted values for
Day set point
(rated room temperature) and
Night set point
(reduced room temperature).
The
Max. flow temperature
and
Min. flow temperature
parameters mark the upper and lower
limits of the flow temperature. A separate gradient characteristic can be selected for the limitation of the return flow temperature.
Examples for adjusting the characteristic:
4
Old building, radiator design 90/70: Gradient approx. 1.8
4
New building, radiator design 70/55: Gradient approx. 1.4
4
New building, radiator design 55/45: Gradient approx. 1.0
4
Underfloor heating depending on arrangement: Gradient smaller 0.5
Note: Particularly for control operation without room sensor, the room temperatures set for
day (Day set point) and night (Night set point) only become effective satisfactorily when the
heating characteristic has been adapted to the building/heating surface layout.
Function
WE Configuration
4-point characteristic 0 CO1, 2, 3 -> F11 - 0
Parameters
WE Rotary switch / Range of values
Day set point 20 °C Top, middle, bottom / 0 to 40 °C
Night set point 15 °C Top, middle, bottom / 0 to 40 °C
Parameters
WE Parameter level / Range of values
Gradient, flow 1.8* PA1, 2, 3 / 0.2 to 3.2
Level, flow 0 °C PA1, 2, 3 / –30 to 30 °C
Min. flow temperature 20 °C PA1, 2, 3 / 5 to 130 °C
Max. flow temperature 90 °C* PA1, 2, 3 / 5 to 130 °C
* With CO1, 2, 3 -> F05 - 1, the following applies: Gradient, flow / 0.2 to 1.0 (1.0)
Max. flow temperature / 5 to 50 °C (50 °C)
EB 5579 EN 71
Functions of the heating circuit
5.1.2 4-point characteristic
The 4-point characteristic allows you to define your own heating characteristic.
It is defined by 4 points each for the
Outdoor temperature
, the
Flow temperature,
the
Reduced
flow temperature
and the
Return flow temperature
. The
Max. flow temperature
and
Min. flow
temperature
parameters mark the upper and lower limits of the flow temperature.
Note: The
Day set point
and
Night set point
parameters are no longer available when the
4-point characteristic has been selected, provided no additional functions (e.g. Optimiza-
tion, Flash adaptation) have been selected.
Function
WE Configuration
4-point characteristic 0 CO1, 2, 3 -> F11 - 1
Parameters
WE Parameter level / Range of values
Outdoor temperature Point 1
Point 2
Point 3
Point 4
–15 °C
–5 °C
5°C
15 °C
PA1, 2, 3 / –30 to 50 °C
Flow temperature Point 1
Point 2
Point 3
Point 4
70 °C
55 °C
40 °C
25 °C
PA1, 2, 3 / 5 to 130 °C
72 EB 5579 EN
Functions of the heating circuit
t
VLmax
t
VLmin
t
VL
100
90
80
70
60
50
40
30
20
10
[°C]
20 15 10 5 0 –5 –10 –15 –20
P1
P2
P3
P4
[°C]
t
A
Fig. 6 · 4-point characteristic
P1 to P4 Points 1 to 4
t
VL
Flow temperature
t
A
Outdoor temperature
... min Min. t
VL
...max Max. t
VL
4-point characteristic
Reduced 4-point characteristic
Parameters
WE Parameter level / Range of values
Reduced flow temperature Point 1
Point 2
Point 3
Point 4
60 °C
40 °C
20 °C
20 °C
PA1, 2, 3 / 5 to 130 °C
Return flow temperature Points 1 to 4 65 °C PA1, 2, 3 / 5 to 90 °C
Min. flow temperature 20 °C PA1, 2, 3 / 5 to 130 °C
Max. flow temperature 90 °C* PA1, 2, 3 / 5 to 130 °C
* With CO1, 2, 3 -> F05 - 1, the following applies: Max. flow temperature / 5 to 50 °C (50 °C)
Note: The 4-point characteristic function can only be activated when the Adaptation function is not active (CO1, 2, 3 -> F08 - 0).
5.2 Fixed set point control
During the times-of-use, the flow temperature can be controlled according to a fixed set
point. Outside the times-of-use, the controller regulates to a reduced flow temperature.
Set the desired rated flow temperature as
Day set point
, and the reduced flow temperature
as
Night set point
.
Functions
WE Configuration
Outdoor sensor AF1 1 CO1 -> F02 - 0
Parameters
WE Rotary switch / Range of values
Day set point 50 °C Top, middle, bottom / Min. to max. flow temperature
Night set point 30 °C Top, middle, bottom / Min. to max. flow temperature
Parameters
WE Parameter level / value range
Min. flow temperature 20 °C PA1, 2, 3 / 5 to 130 °C
Max. flow temperature 90 °C PA1, 2, 3 / 5 to 130 °C
Note: A fixed set point control in heating circuit 2 or 3 with CO2 -> F02 - 0 or
CO3 -> F02 - 0 respectively can only be configured if CO1 -> F02 - 0 is set as well because
the heating circuits 2 and 3 only use the measured outdoor temperature provided by heating
circuit 1.
EB 5579 EN 73
Functions of the heating circuit
5.3 Underfloor heating/drying of jointless floors
Using function block setting CO1, 2, 3 -> F05 - 1, the respective heating circuit is configured
as an underfloor heating circuit. In doing so, the controller at first only limits the value ranges
of the heating characteristic gradient and the maximum flow temperature in PA1, 2, 3 parameter levels:
4
Value range of the gradient: 0.2 to 1.0
4
Value range of the maximum flow temperature: 5 to 50 °C
In addition, it is possible to activate the Drying of jointless floors function. In connection with
this, the function block parameters are listed which appear after activating this function
block. They determine the drying process: the first heating up phase starts at the entered
Start temperature
, which has a flow temperature of 25 °C in its default setting. In the course
of 24 hours, this temperature is raised by the value entered in
Temperature rise
, i.e. the de-
fault setting causes the flow temperature set point to rise to 30 °C. If the
Maximum tempera-
ture
is reached, it is kept constant for the number of days entered in
Maintaining time for
maximum temperature
. The
Temperature reduction
determines the temperature reduction
downwards. If the
Temperature reduction
is set to 0, the temperature maintaining phase
moves directly to automatic mode.
The drying function is activated by changing the setting
STOPtoSTART temperature build-up
phase (
n
START
on the display). The restarting stages
START temperature maintaining phase
(
nn
START
on the display) and
START temperature reduction phase
(
nnn
START
on the display) can be selected to continue an interrupted drying process. The course of the drying
process can be monitored in the information level over the icon of flow temperature display
( ) of the associated heating circuit:
Temperature build-up phase
Temperature maintaining phase
Temperature reduction phase
The drying process has been successfully completed when the additional icon in the flow
temperature display goes out after the last phase.
STOP
on the display indicates that there has been a deviation of flow temperature of more
than 5 °C for longer than 30 minutes. The function is canceled by the controller in such
cases. While
STOP
appears on the display, the controller keeps the flow temperature con-
stant at 25 °C.
A power failure while the drying function is active or when
STOP
appears on the display au-
tomatically leads to the drying function restarting from the beginning.
74 EB 5579 EN
Functions of the heating circuit
START
START
START
In systems in which the drying function had to be interrupted due to DHW heating (e.g.
Anl 2.1), storage tank charging does not occur while the drying function is active, provided
it is not used for frost protection of the storage tank.
Note: The function block parameter can only be accessed when the function has started by
deactivating the function block and activating it again.
Functions WE Configuration
Underfloor heating
Drying of jointless floors
0
5 °C/24 h
25 °C
45 °C
4
0 °C/24 h
STOP
CO1, 2, 3 -> F05 - 1
Temperature rise / 1 to 10 °C/24 h
Start temperature / 20 to 60 °C
Maximum temperature / 25 to 60 °C
Maintaining time for max. temperature / 1 to 10 days
Temperature reduction / 0 to 10 °C/24 h
n
START,nnSTART,
nnn
START
5.4 Deactivation depending on outdoor temperature
5.4.1 OT deactivation value in rated operation
If the outdoor temperature exceeds the limit
OT deactivation value in rated operation
, the affected heating circuit is put out of service immediately. The valve is closed and the pump is
switched off after t = 2 x valve transit time. When the outdoor temperature falls below this
value (less 0.5 °C hysteresis), heating operation is restarted immediately.
With the default settings, this means that, during the warm season, the system is switched off
at an outdoor temperature of 22 °C.
Parameter
WE Parameter level / Range of values
OT deactivation value
in rated operation
22 °C PA1, 2, 3 / 0 to 50 °C
5.4.2 OT deactivation value in reduced operation
If the outdoor temperature exceeds the limit value
OT deactivation value in reduced operation
in reduced operation, the affected heating circuit is put out of service immediately. The valve is
closed and the pump is switched off after t = 2 x valve transit time. When the outdoor temperature falls below this value (less 0.5 °C hysteresis), heating operation is restarted immediately.
With the default settings, this means that, at night, the system is switched off at an outdoor
EB 5579 EN 75
Functions of the heating circuit
temperature of 15 °C to save energy. Nevertheless, remember that the system requires some
time in the morning to heat up the building.
Parameter
WE Parameter level / Range of values
OT deactivation value
in reduced operation
15 °C PA1, 2, 3 / –20 to 50 °C
5.4.3 OT activation value in rated operation
If a heating circuit is in reduced operation (automatic mode), the circuit is automatically
transferred to rated operation when the outdoor temperature falls below the limit value
OT
activation value in rated operation
. When the limit value is exceeded (plus 0.5 °C hysteresis), reduced operation is restarted.
This function is activated at very low temperatures to avoid that the building cools down excessively outside the times-of-use when low outdoor temperatures occur.
Parameter
WE Parameter level / Range of values
OT activation value
in rated operation
–15 °C PA1, 2, 3 / –20 to 5 °C
5.4.4 Summer mode
Summer mode is activated depending on the mean daytime temperature (measured between
7.00h and 22.00h) during the desired period.
If the mean daytime temperature exceeds the
OT limit value in summer mode
on n successive
days, summer mode is activated on the following day. This means that the valves in all heating circuits are closed and the circulation pumps are switched off after t = 2 x valve transit
time. If the mean daytime temperature remains below the
OT limit value in summer mode
on
m successive days, summer mode is deactivated on the following day.
Functions
WE Configuration
Summer mode 0
01.06
2
30.09
1
18 °C
CO5 -> F04 - 1
Start summer mode/ 01.01 (1 Jan) to 31.12 (31 Dec)
No. of days until activation / 1 to 3
Stop summer mode / 01.01 to 31.12
No. of days until deactivation / 1 to 3
OT limit value summer mode /0 to 30 °C
Note: Summer mode only becomes effective when the controller is in automatic mode ( ).
76 EB 5579 EN
Functions of the heating circuit
5.5 Delayed outdoor temperature adaptation
The calculated outdoor temperature is used to determine the flow temperature set point. The
heat response is delayed when the outdoor temperature either decreases, increases or increases and decreases. If the outdoor temperature varies by, for example, 12 °C within a
very short period of time, the calculated outdoor temperature is adapted to the actual outdoor temperature in small steps. Assuming a
Delay
of 3 °C/h, the adaptation would take
th
C
Ch
==
°°12
3
4
/
.
Note: The delayed outdoor temperature adaptation helps avoid unnecessary overloads of
central heating stations in combination with either overheated buildings occurring, for example, due to warm winds, or temporarily insufficient heating due to the outdoor sensor being
exposed to direct sunshine.
In the operating level, the outdoor temperature blinks on the display while delayed outdoor
temperature adaptation is active. The calculated outdoor temperature is displayed.
Functions
WE Configuration
Delayed OT adaptation when OT decreases 0
3 °C/h
CO5 -> F05 - 1
Delay / 1 to 6 °C/h
Delayed OT adaptation when OT increases 0
3 °C/h
CO5 -> F06 - 1
Delay / 1 to 6 °C/h
5.6 Remote operation
Apart from measuring the room temperature, the Type 5244 Room Panel (PTC sensor) and
Type 5257-5 Room Panel (Pt 1000 sensor) offer the following opportunities of influencing the
control process:
EB 5579 EN 77
Functions of the heating circuit
Fig. 7 · Wiring plan for Type 5244/5257-5 Room Panel to TROVIS 5579 for Rk1, Rk2 or Rk3
Type
5244/5257-5
TROVIS 5579
Rk1 Rk2 Rk3
Terminal 1 Terminal 5 Terminal 6 Terminal 7
Terminal 2 Terminal 18 Terminal 18 Terminal 18
Terminal 3 Terminal 15 Terminal 16 Terminal 17
Type 5244/5257-5
4
Selection of the operating mode: – Automatic mode
– Day mode (rated operation)
– Night mode (reduced operation)
4
Set point correction: during rated operation, the room temperature set point can be increased or reduced by up to 5 °C using a continuously adjustable rotary knob.
When the room sensor is activated, the measured room temperature is displayed with the remote operation is connected and activated. Nevertheless, it is not used for control unless the
Optimization, Adaptation or Flash adaptation functions have been activated.
Alternatively, the TROVIS 5570 Room Panel can be connected over the device bus (–> section 7.12.5).
Functions
WE Configuration
Room sensors RF1/2/3 0 CO1, 2, 3 -> F01 - 1
If the TROVIS 5570 Room Panel is to be used, the following additional configurations must
be made:
Device bus 0 CO7 -> F01 - 1; device bus address
TROVIS 5570 Room Panel in Rk1 0 CO7 -> F03 - 1; device bus address
TROVIS 5570 Room Panel in Rk2 0 CO7 -> F04 - 1; device bus address
TROVIS 5570 Room Panel in Rk3 0 CO7 -> F05 - 1; device bus address
Note: The
Day set point
adjusted using the rotary switch remains unaffected by a set point
corrections performed at the room panel. Only the calculated flow temperature set point or
the room temperature set point (for flash adaptation) are adjusted accordingly.
The evaluation of a room temperature sensor connected to the terminals RF is not possible for
this control circuit when a TROVIS 5570 Room Panel is configured.
5.7 Optimization
This function requires the use of a room sensor. Depending on the building characteristics,
the controller determines and adapts the required advance heating time (maximum 8 hours)
to ensure that the desired
Day set point
(rated room temperature) has been reached in the
reference room when the time-of-use starts. During the advance heating period, the controller heats with the max. flow temperature. This temperature is built up in steps of 10 °C. As
soon as the
Day set point
has been reached, weather-compensated control is activated.
Depending on the room sensors, the controller switches off the heating system up to one hour
before the time-of-use ends. The controller chooses the deactivation time such that the room
temperature does not drop significantly below the desired value until the time-of-use ends.
78 EB 5579 EN
Functions of the heating circuit
During the advance heating period and the premature deactivation of the heating system,
the icons or blink on the display. Outside the times-of-use, the controller monitors the
Night set point
(reduced room temperature). When the temperature falls below the night set
point, the controller heats with the max. flow temperature until the measured room temperature exceeds the adjusted value by 1 °C.
Note: Direct sunshine can cause the room temperature to increase and thus result in the premature deactivation of the heating system.
When the room temperature decreases while the heating system is temporarily outside its
times-of-use, this can prematurely cause the controller to heat up to the adjusted
Day set
point.
Functions
WE Configuration
Room sensors RF1/2/3 1 CO1, 2, 3 -> F01 - 1
Outdoor sensors AF1/2 0 CO1, (2, 3) -> F02 - 1
Optimization 0 CO1, 2, 3 -> F07 - 1
Parameters
WE Rotary switch / Range of values
Day set point 20 °C Top, middle, bottom/0to40°C
Night set point 15 °C Top, middle, bottom/0to40°C
5.8 Flash adaptation
To ensure that the controller reacts immediately to room temperature deviations during rated
or reduced operation, the function block setting CO1, 2, 3 -> F09 - 1 needs to be made.
The heating is then always switched off as soon as the room temperature exceeds the
Day set
point
or
Night set point
by 2 °C.
Heating first starts again when the room has cooled off and the room temperature is 1 °C
above the
Set point
. The flow temperature set point is corrected if the
Cycle time
and
Gain K
P
are set to a value other than 0. The
Cycle time
determines the intervals at which the flow tem-
perature set point is corrected by 1 °C. A
Gain K
P
set to a value other than 0 causes a direct
increase/decrease in flow temperature set point when a sudden deviation in room temperature arises. A
Gain K
p
setting of 10.0 is recommended.
Note: Cooling loads, such as drafts or open windows, affect the control process!
Rooms may be temporarily overheated after the cooling load has been eliminated!
EB 5579 EN 79
Functions of the heating circuit
Functions
WE Configuration
Room sensors RF1/2/3 0 CO1, 2, 3 -> F01 - 1
Flash adaptation 0
20 min
0
CO1, 2, 3 -> F09 - 1
Cycle time / 1 to 100 min
K
P
(gain) / 0 to 25
Parameters
WE Rotary switch / Range of values
Day set point 20 °C Top, middle, bottom/0to40°C
Night set point 15 °C Top, middle, bottom/0to40°C
5.8.1 Flash adaptation without outdoor sensor (room temperature
dependent)
The flow temperature control starts with
Flow day set point
in rated operation or with
Flow
night set point
in reduced operation as no set points calculated using characteristics exist
without an outdoor sensor. The
Cycle time
determines the intervals at which the flow temperature set point is corrected by 1 °C. The heating is then always switched off as soon as the
room temperature exceeds the
Day set pointorNight set point
by 2 °C. Heating first starts
again when the room has cooled off and the room temperature is 1 °C above the
Set point
.
A
Gain K
P
set to a value other than 0 causes a direct increase/decrease in flow temperature
set point when a sudden deviation in room temperature arises. A
Gain K
P
setting of 10.0 is
recommended.
Functions
WE Configuration
Room sensors RF1/2/3 0 CO1, 2, 3 -> F01 - 1
Outdoor sensor AF1/2 1 CO1 (2, 3) -> F02 - 0
Flash adaptation 0
20 min
0
CO1, 2, 3 -> F09 - 1
Cycle time / 1 to 100 min
K
P
(gain) / 0 to 25
Parameters
WE Rotary switch / Range of values
Day set point 20 °C Top, middle, bottom/0to40°C
Night set point 15 °C Top, middle, bottom/0to40°C
Parameters
WE Parameter level / Range of values
Flow day set point 50 °C PA1, 2, 3 / 5 to 130 °C
Flow night set point 30 °C PA1, 2,3/5to130°C
80 EB 5579 EN
Functions of the heating circuit
5.9 Adaptation
The controller is capable of automatically adapting the heating characteristic to the building
characteristics, provided a gradient characteristic has been set (CO1, 2, 3 -> F11 - 0). The
reference room, where the room sensor is located, represents the entire building and is monitored to ensure that the room set point (
Day set point)
is maintained. When the mean measured room temperature in rated operation deviates from the adjusted set point, the heating
characteristic is modified accordingly for the following time-of-use. The corrected value is
displayed in parameter levels PA1, 2, 3 under
Gradient, flow
.
Note: If the Flash adaptation function is already configured with a small cycle time, the Adaptation function should not be configured as well.
Functions
WE Configuration
Room sensors RF1/2/3 0 CO1, 2, 3 -> F01 - 1
Outdoor sensors AF1/2 1 CO1 (2, 3) -> F02 - 1
Adaptation 0 CO1, 2, 3 -> F08 - 1
4-point characteristic 0 CO1, 2, 3 -> F11 - 0
Parameters
WE Rotary switch / Range of values
Day set point 20 °C Top, middle, bottom/0to40°C
Night set point 15 °C Top, middle, bottom / 0 to 40 °C
5.10 Pump management
The Pump management function can be used for a heating circuit circulation pump. Usually,
this is the circulation pump UP1. If the control circuit Rk1 is a pre-control circuit, the Pump
management function is used for circulation pump UP2; additionally, if control circuit Rk2 is
assigned to DHW heating (-> system schematics from page 29 onwards), the function for the
circulation pump UP3 is available. The speed-controlled pump is, however, needs to be connected in any case to the binary outputs BA12 and BA13 (semiconductor relay, max. 24 V,
50 mA).
4
BA12 switches the pump on/off (in parallel with binary output on the network side)
4
BA13 releases the speed control in rated operation or sets the pump to minimum speed
operation during reduced operation
EB 5579 EN 81
Functions of the heating circuit
Functions
WE Configuration
Pump management –
switching states of BA13 *
0 CO5 -> F17 - 1: Speed control released with BA13 = ON
CO5 -> F17 - 0: Speed control released with BA13 = OFF
Fault indication output
BA13
0 CO5 -> F07 - 0
BA12 ON during thermal
disinfection
0 CO4 -> F17 - 0
BA12 ON during DHW
demand
CO4 -> F18 - 0
* CO5-> F17 - 0 or -1 only influences the switching state of binary output BA13!
Note: If CO5 -> F07 - 1, CO4 -> F17 - 1 or CO4 -> F18 - 1 is configured, the pump
management function is no longer available.
82 EB 5579 EN
Functions of the heating circuit
6 Functions of the DHW circuit
6.1 DHW heating in the storage tank system
Start storage tank charging
The controller begins charging the storage tank when the water temperature measured at
sensor SF1 falls below the
DHW temperature set point
by 0.1 °C. If the flow temperature in
the system exceeds the desired charging temperature, the controller tries to reduce the flow
temperature in the heating circuit for up to 3 minutes before the storage tank charging pump
is activated. When there is no heating operation or when the flow temperature in the system
is lower, the storage tank charging pump is switched on immediately.
If the function CO4 -> F15 - 1 (SLP ON depending on return flow temperature) is activated,
the primary valve is opened without simultaneously operating the storage tank charging
pump. The storage tank charging pump is not switched on before the primary return flow
temperature has reached the temperature currently measured at storage tank sensor SF1.
This function enables storage tank charging when the heating system is switched off, e.g. in
summer mode, without cooling down the storage tank first by filling it with cold flow water.
The storage tank charging pump does not start operation before a sufficiently high temperature has been reached at the heat exchanger.
Note: Instead of the
DHW temperature
parameter, the
Charging temperature
can be ad-
justed as the absolute value at the rotary switch if a storage tank thermostat is used.
EB 5579 EN 83
Functions of the DHW circuit
KW
WW
SF1
ZP
SLP
Fig. 8 · Schematics of a storage tank system
SLP Storage tank charging pump
SF1 Storage tank sensor 1
ZP Circulation pump
WW Hot water
KW Cold water
Time-controlled switchover of storage tank sensors
By configuring a second storage tank sensor SF2 over the function block CO4 -> F19 -1, it is
possible to determine that the storage tank sensor SF1 is used for day mode in the DHW circuit and that the storage tank sensor SF2 is used for night mode. As a result, different storage tank volumes can be kept at a constant temperature according to a time schedule, and
also at different temperatures if the
DHW set point
and
Sustained DHW temperature
differ
from one another.
Stop storage tank charging
The controller stops charging the storage tank when the water temperature measured at sensor SF1 has reached the temperature T =
DHW temperature+hysteresis
. When there is no
heating operation or when the flow temperature demand in the system is lower, the corresponding valve is closed.
The storage tank charging pump is switched off after t =
Lag time of storage tank charging
pump
x
valve transit time
.
With the default settings, the temperature in the storage tank is increased by 5 °C to reach
60 °C when the storage tank temperature falls below 55 °C. The charging temperature is
calculated from the DHW temperature (55 °C) plus the charging temperature boost (10 °C),
which equals 65 °C. When the storage tank has been charged, the heating valve is closed
and the charging pump continues operation for the time t (lag). Outside the times-of-use, the
storage tank is only charged when the temperature falls below 40 °C (
Sustained DHW tem-
perature
). In this case, the tank is charged with a charging temperature of 50 °C until 45 °C
are reached in the tank.
Functions
WE Configuration
Storage tank sensor SF1 1 CO4 -> F01 - 1
Storage tank sensor SF2 CO4 -> F02 (- 1 when CO4 -> F19 - 1)
SLP ON depending on return flow temperature 0 CO4 -> F15
Time-controlled switchover of storage tank
sensors
0 CO4 -> F19 (-1 only when CO4 -> F02 - 1)
Parameters
WE Rotary switch / Range of values
DHW temperature set point or charging temper-
ature set point with CO4 -> F01 - 0
55 °C Bottom / Min. to max. DHW temperature
Sustained DHW temperature 40 °C Bottom / Min. to max. DHW temperature
Parameters
WE Parameter level / Range of values
Min. DHW temperature* 40 °C PA4 / 5 to 90 °C
Max. DHW temperature* 60 °C PA4 / 5 to 90 °C
84 EB 5579 EN
Functions of the DHW circuit
Parameters
WE Parameter level / Range of values
Hysteresis** 5 °C PA4 / 0 to 30 °C
Charging temperature boost*** 10 °C PA4 / 0 to 50 °C
Lag of storage tank charging pump 0.5 PA4 / 0.1 to 10.0
* Parameters serve as limitation of the adjustment range for the DHW temperature to be set
at the rotary switch
** Deactivation value T =
DHW temperature+hysteresis
*** Charging temperature T =
DHW temperature+charging temperature boost
6.1.1 DHW circuit additionally controlled by a globe valve
In systems Anl 7.1, 8.1, 9.1, 9.5, 11.1, 12.1, 13.1 and 21.1, the following version with
globe valve can be configured instead of the three-way valve control in the DHW circuit:
Globe valve and temperature sensor VF2 are used exclusively for return flow temperature
limitation in the schematics shown above. The pre-control circuit provides at least the same
flow temperature as in the standard schematic version which is calculated from
DHW tem-
perature set point
+
Charging temperature boost+Boost set point of primary exchanger
control.
The functions and parameters of the DHW heating in the storage tank system are upgraded
by the following settings:
Function WE Configuration
DHW circuit additionally controlled by a
globe valve
0 CO4 -> F20 - 1
Parameter WE Parameter level / Range of values
Maximum return flow temperature 65 °C PA4 / 20 to 90 °C
EB 5579 EN 85
Functions of the DHW circuit
KW
WW
SF1
VF2
ZP
SLP
Rk2/Y2
Fig. 9 · Schematics of a storage tank system with a globe valve for return flow temperature limitation
Rk2/Y2 Control circuit/valve 2
SLP Storage tank charging
pump
SF1 Storage tank sensor 1
VF2 Flow sensor 2
ZP Circulation pump
WW Hot water
KW Cold water
6.2 DHW heating in the storage tank charging system
Start storage tank charging
The controller begins charging the storage tank when the water temperature measured at
sensor SF1 falls below the
DHW temperature set point
by 0.1 °C. If the flow temperature in
the system exceeds the desired charging temperature, the controller tries to reduce the flow
temperature in the heating circuit for up to 3 minutes before the exchanger charging pump is
activated together with the storage tank charging pump.
When there is no heating operation or when the flow temperature in the system is lower, the
exchanger charging pump is switched on immediately. If the temperature currently measured
at sensor SF1 is reached at sensor VF, or after three minutes at the latest, the storage tank
charging pump is switched on.
If a storage tank thermostat is used, the storage tank charging pump is switched on when the
temperature T =
Charging temperature
– 5 °C is reached at sensor VF.
Note: Instead of the
DHW temperature
parameter, the
Charging temperature
can be ad-
justed as the absolute value at the rotary switch if a storage tank thermostat is used.
When the flow sensor VF4 is activated, the set point in the heat exchanger circuit is influenced by the system deviation in the storage tank charging circuit upon activation of the storage tank charging pump: if the temperature measured at flow sensor VF4 is lower than the
desired charging temperature, the set point in the heat exchanger circuit is increased in steps
of 1 °C.
When the set point in the heat exchanger charging circuit reaches the
Max. charging tem-
perature
, the set point is no longer increased. An “Err 4“ error message is generated.
86 EB 5579 EN
Functions of the DHW circuit
WW
SF1
SF2
SLP
TLP
ZP
KW
VF
Fig. 10 · Schematics of a storage tank charging system
TLP Exchanger charging pump
VF Flow sensor
SLP Storage tank charging pump
SF1 Storage tank sensor 1
SF2 Storage tank sensor 2
ZP Circulation pump
WW Hot water
KW Cold water
Note: The set point in the heat exchanger circuit which is valid at the end of the charging cycle will be used again at the beginning of the next cycle.
If times-of-use have been set for DHW heating, the
DHW temperature set point
adjusted at
the rotary switch is applied during these times-of-use. Outside the times-of-use, the
Sustained
DHW temperature
is used. This does not apply when a storage tank thermostat is used.
Time-controlled switchover of storage tank sensors
By configuring a second storage tank sensor SF2 over the function block CO4 -> F19 -1, it is
possible to determine that the storage tank sensor SF1 is used for day mode in the DHW circuit and that the storage tank sensor SF2 is used for night mode. As a result, different storage tank volumes can be kept at a constant temperature according to a time schedule, and
also at different temperatures if the
DHW set point
and
Sustained DHW temperature
differ
from one another.
Stop storage tank charging
The controller stops charging the storage tank when the water temperature measured at sensor SF2 has reached the temperature T =
DHW temperature+hysteresis
. To do so, the heat
exchanger charging pump is switched off first.
When there is no heating operation or when the flow temperature demand in the system is
lower, the corresponding valve is closed. The storage tank charging pump is switched off after t =
Lag time of storage tank charging pumpxvalve transit time
.
Functions
WE Configuration
Storage tank sensor SF1 1 CO4 -> F01 - 1
Storage tank sensor SF2 1 CO4 -> F02 - 1
Flow sensor VF4 0 CO4 -> F05
Time-controlled switchover of storage tank
sensors
0 CO4 -> F19
Parameters
WE Rotary switch / Range of values
DHW temperature set point or charging
temperature set point with CO4 -> F01 - 0
55 °C Bottom /Min. to max. DHW temperature
Sustained DHW temperature 40 °C Bottom /Min. to max. DHW temperature
Parameters
WE Parameter level / Range of values
Min. DHW temperature* 40 °C PA4 / 5 to 90 °C
EB 5579 EN 87
Functions of the DHW circuit
Parameters
WE Parameter level / Range of values
Max. DHW temperature* 60 °C PA4 / 5 to 90 °C
Hysteresis** 5 °C PA4 / 0 to 30 °C
Charging temperature boost*** 10 °C PA4 / 0 to 50 °C
Max. charging temperature 80 °C PA4 / 20 to 130 °C (only with VF4)
Lag of storage tank charging pump 0.5 PA4 / 0 to 10.0
* Parameters serve as limitation of the adjustment range for the DHW temperature to be set
at the rotary switch
** Deactivation value T =
DHW temperature+hysteresis
*** Charging temperature T =
DHW temperature+charging temperature boost
6.3 DHW heating in instantaneous heating system
Without a flowmeter or flow switch, the required
DHW temperature
at sensor VF is only regulated during the times-of-use of the circulation pump ZP. The flowmeter or flow switch allow
the controller to recognize exactly when DHW is being tapped. By deleting all the
time-of-uses for the circulation pump, it is possible to regulate the required DHW temperature just while the DHW is being tapping.
With the activated flow sensor V4, the temperature control is moved to upstream of the heat
exchanger: Should the required
DHW temperature
measured at the flow sensor VF4 be too
low, the
Flow temperature set point
upstream of the heat exchanger is raised in steps of
1 °C. When the set point reaches the
Maximum charging temperature
, the temperature is not
raised anymore; an “Err 4” error message is generated.
88 EB 5579 EN
Functions of the DHW circuit
WW
VF
ZP
KW
Fig. 11 · Schematics of an instantaneous heating system with water flowmeter
(CO4 -> F04 - 1, select: AnA)
VF Flow sensor
ZP Circulation pump
WW Hot water
KW Cold water
Water flowmeter
Note: The
Flow temperature set point
upstream of the heat exchanger valid after hot water
tapping is finished is used as a reference the next time hot water is tapped. Outside the
time-of-use of DHW heating, the hot water is regulated to the
Sustained DHW temperature
.
Functions WE Configuration
Water flowmeter 0
AnA
CO4 -> F04 - 1
AnA (water flowmeter), bin (flow switch)
Flow sensor V4 0 CO4 -> F05 - 1
Parameters WE Rotary switch / Range of values
DHW temperature set point 55 °C Bottom /Min. to max. DHW temperature
Sustained DHW temperature 40 °C Bottom /Min. to max. DHW temperature
Parameters WE Parameter level / Range of values
Min. DHW temperature 40 °C PA4 / 5 to 90 °C
Max. DHW temperature 60 °C PA4 / 5 to 90 °C
Maximum charging temperature 80 °C PA4 / 20 to 130 °C (only with VF4)
6.4 DHW heating with solar system
The systems Anl 1.3, 1.4, 1.7, 1.8, 2.3, 2.4, 3.3, 3.4, 4.3, 10.3, 11.3 and 11.4 include a
solar system for DHW heating. In these systems, the difference between the temperatures
measured at storage tank sensor SF3 and the sensor at the solar collector VF3 is determined.
The
Solar pump ON
parameter determines the minimum temperature difference between
sensors VF3 and SF3 required to activate the solar pump. If the temperature difference falls
below the value of
Solar pump OFF,
the solar pump is switched off. Basically, the solar pump
is also switched off when the water temperature measured at sensor SF3 has reached the
Max. storage tank temperature
.
Note: The times-of-use of the DHW circuit do not affect the operation of the solar system.
After the key number 1999 has been entered, the operating hours of the solar pump are displayed in extended operating level.
EB 5579 EN 89
Functions of the DHW circuit
Parameters
WE Parameter level / Range of values
Solar pump ON 10 °C PA4 / 1 to 30 °C
Solar pump OFF 3 °C PA4 / 0 to 30 °C
Max. storage tank temperature 80 °C PA4 / 20 to 90 °C
6.5 Intermediate heating operation
This function is only available in systems Anl 2.x, 4.1 to 4.5, 8.x, 9.5 and 9.6. With the setting CO4 -> F07 - 1, heating operation of the UP1 heating circuit is reactivated for a period
of 10 minutes after 20 minutes of priority (heating deactivated during DHW heating). By setting CO4 -> F07 - 0, storage tank charging is given unlimited priority over the heating operation in the UP1 heating circuit.
Function
WE Configuration
Intermediate heating 1 CO4 -> F07 - 1
6.6 Parallel pump operation
This function is only available in systems Anl 2.1 to 2.4, 4.1 to 4.5, 8.x, 9.5 and 9.6. With
the setting CO4 -> F06 - 1, the circulation pump UP1 remains switched on during DHW
heating unless certain operating situations occur. These situations include, for example, those
when the current flow temperature demand of the pump circuit is lower than the adjusted
Flow limit temperature for parallel pump operation
. In this case, the controller applies priority operation, if necessary with intermediate heating. Once a parallel pump operation cycle
has been activated and the time for
Stop parallel operation in case of deviation
has elapsed,
system deviations greater than 5 °C cause the controller to suspend parallel operation for
10 minutes and to apply priority operation. By setting
Stop parallel operation in case of de-
viation
to 0 min. leads to a parallel operation once initiated remaining regardless of a devi-
ation.
Function
WE Configuration
Parallel pump operation 0
10 min
40 °C
CO4 -> F06 - 1
Stop parallel operation in case of deviation /
0 to 10 min
Flow limit temperature for parallel pump operation /
20 to 90 °C
90 EB 5579 EN
Functions of the DHW circuit
6.7 Circulation pump operation during storage tank charging
With the setting CO4 -> F11 - 1, the circulation pump continues operation according to the
programmed time schedule even during storage tank charging.
With the setting CO4 -> F11 - 0, the circulation pump is switched off as soon as the storage
tank charging pump is activated. The circulation pump returns to operate according to the
time schedule when the storage tank charging pump has been switched off again.
Function
WE Configuration
Circulation pump operation
during storage tank charging
0 CO4 -> F11
6.8 Priority operation
In many district heating systems with primary DHW heating, the allotted amount of water
cannot meet DHW heating and heating operation demands when they are required at the
same time. As a result, the capacity required for DHW heating needs to be taken from the
heating system when great heating loads occur; and this, until DHW heating has been concluded.
Nevertheless, heating operation is not to be interrupted simply. Only the amount of energy
required for DHW heating is to be deducted. This can be achieved by using the priority functions Reverse control and Set-back operation.
6.8.1 Reverse control
In all systems with DHW heating and at least one heating circuit with control valve, DHW
heating can be given priority by applying reverse control. With the setting CO4 -> F08 - 1,
the charging temperature can be monitored in the DHW circuit.
In systems without the sensor VFx in the DHW circuit (e.g. Anl 4.5, 11.0, 12.0, 13.0, 21.0),
the temperature directly at the storage tank sensor SF1 is monitored. If system deviations still
occur after the time for
Activate priority in case of deviation
has elapsed, the set point of the
heating circuit or supplementary heating circuit – with several possibilities Rk3/Y3 – is gradually reduced each minute until the flow temperature set point has reached 5 °C at the minimum. How strongly the controller responds is determined by the
Correction factor
.
Functions
WE Configuration
Priority through reverse control 0
2 min
1.0
CO4 -> F08 - 1
Activate priority in case of deviation / 2 to 10 min
Correction factor / 0.1 to 10.0
Priority through set-back operation 0 CO4 -> F09 - 0
EB 5579 EN 91
Functions of the DHW circuit
6.8.2 Set-back operation
In all systems with DHW heating and at least one heating circuit with control valve, DHW
heating can be given priority by applying set-back operation. With the setting
CO4 -> F08 - 1, the charging temperature can be monitored in the DHW circuit. In systems
without the sensor VFx in the DHW circuit (e.g. Anl 4.5, 11.0, 12.0, 13.0, 21.0), the temperature directly at the storage tank sensor SF1 is monitored. If system deviations still occur
after the time for
Activate priority in case of deviation
has elapsed, the set point of the heating circuit or supplementary heating circuit – with several possibilities Rk3/Y3 – is set to reduced operation.
Functions
WE Configuration
Priority through reverse control CO4 -> F08 - 0
Priority through set-back operation 0
2 min
CO4 -> F09 - 1
Activate priority in case of deviation / 2 to 10 min
6.9 Forced charging of the DHW storage tank
To provide the full room heating performance when the time-of-use of the heating circuits begins, existing storage tanks are charged one hour before the time-of-use of the heating circuits starts.
For the individual controller, this means that storage tank charging is activated when the water temperature in the storage tank falls below the adjusted deactivation value of T =
DHW
temperature
+
hysteresis
. The forced charging of the storage tank does not take place when
the DHW circuit is not used at the beginning of the time-of-use set for the heating circuit(s).
Note: This function is not available when a storage tank thermostat is used.
6.10 Thermal disinfection
In all systems with DHW heating, the DHW storage tank is thermally disinfected on a selected
Day of the week
or every day.
4
In systems with DHW storage tank, it is heated up, taking into account the
Charging tem-
perature boost
parameter (or
Set point boost
, depending on the system) to the adjusted
Disinfection temperature
. Disinfection begins at the adjusted
Start time
and, at the latest,
ends at the specified
Stop time
.
4
In systems with DHW heating in instantaneous heating system, the function remains active
taking into account the
Set point boost
parameter until the circulation pipe, measured at
92 EB 5579 EN
Functions of the DHW circuit
SF1, has reached the adjusted
Disinfection temperature,
provided disinfection has not
been terminated because the
Stop time
has been reached.
The
Hold time of disinfection temperature
determines how long the disinfection temperature
must be maintained within the adjusted time period to rate the process successful. If the
Hold
time of disinfection temperature
is set to a value other than 0, no intermediate heating oper-
ation takes place during thermal disinfection.
If the
Start time
and
Stop time
are set to the identical time, disinfection is controlled depending on the switching state of the binary input BE17 to be performed daily or on the programmed day of the week. Disinfection starts when BE17 = ON, or optionally BE17 = OFF.
It stops at the latest when the switching state of the binary input next changes.
When the
Disinfection temperature
has not been reached before the end of the thermal disinfection cycle, an “Err 3“ error message is generated. This error message can also be generated prematurely if the remaining time until the disinfection temperature is reached is shorter
than the adjusted
Hold time of disinfection temperature
. The error message is automatically
reset when the
Disinfection temperature
is properly reached during the following thermal dis-
infection cycle.
Thermal disinfection for preventing legionella infection causes
4
excessively high return flow temperatures during the disinfection cycle (return flow temperature limitation suspended),
4
excessively high DHW temperatures after thermal disinfection has been concluded,
4
lime scale (possibly), which can have a negative effect on heat exchanger performance.
Note: This function is not available when a storage tank thermostat is used.
Controllers that are linked over a device bus are subjected to return flow temperature
limitation in the primary control circuit even during the thermal disinfection in a secondary
controller.
EB 5579 EN 93
Functions of the DHW circuit
Functions
WE Configuration
Storage tank sensor SF1 1 CO4 -> F01 - 1
Thermal disinfection 0
3
0:00h
4:00h
70 °C
10 °C
0 °C
1
CO4 -> F14 - 1
Day of the week / 1–7, 1, 2, ..., 7 with
1–7 = every day, 1 = Monday, ..., 7 = Sunday
Start time / 0:00h to 23:45h; in steps of 15 minutes
Stop time / 0:00h to 23:45h; in steps of 15 minutes
Disinfection temperature / 60 to 90 °C
Set point boost / 0 to 50 °C
Hold time of disinfection temperature / 0 to 255 °C
bE = 1, 0 (start of disinfection with BE17 = ON, OFF;
only applies when Start time = Stop time)
94 EB 5579 EN
Functions of the DHW circuit
7 System-wide functions
7.1 Automatic summer time/winter time changeover
The clock is automatically adjusted on the last Sunday in March at 2.00h and on the last
Sunday in October at 3.00h.
Functions
WE Configuration
Summer time/winter time changeover 1 CO5 -> F08 - 1
7.2 Frost protection
Frost protection measures are taken when the outdoor temperature falls below the
Frost pro-
tection limit.
The switching differential to cancel the frost protection measures is always 1 °C.
4
Frost protection program I (restricted frost protection): frost protection measures are taken
only when all heating circuits in the system are in stand-by mode. The circulation pumps
are automatically switched on and their flow temperature set points are adjusted to
10 °C. The circulation pump in the DHW circuit is automatically switched on only when
the stand-by mode has been adjusted at the rotary switch in all heating circuits. Nevertheless, the storage tank is always recharged to 10 °C if the storage tank temperature
falls below 5 °C.
4
Frost protection program II: the heating circuit circulation pumps are always switched on
automatically. The flow temperature set points of all heating circuits currently in stand-by
mode are set to +10 °C. In the DHW circuit, the circulation pump is always activated. If
the storage tank temperature falls below +5 °C, the storage tank is recharged to +10 °C.
Functions
WE Configuration
Frost protection program I
3 °C
CO5 -> F09 - 0
Frost protection limit / –15 to 3 °C
Frost protection program II
3 °C
CO5 -> F09 - 1
Frost protection limit / –15 to 3 °C
Note: Frost protection operation of a pump, a heating circuit or the DHW circuit is only active when the frost protection icon is indicated on the display.
Fixed set point control without outdoor temperature sensor does not include frost protection
monitoring in stand-by mode.
EB 5579 EN 95
System-wide functions
7.3 Forced operation of the pumps
When the heating circuit pumps have not been activated for 24 hours, forced operation of
the pumps is started between 12.02h and 12.03h. This is done to avoid that the pumps get
stuck when they are not operated for a longer period of time. In the DHW circuit, the circulation pump is operated between 12.04h and 12.05h, the other pumps between 12.05h and
12.06h.
7.4 Return flow temperature limitation
The temperature difference between the flow and return flow indicates how well the energy is
used: the greater the difference, the higher the efficiency. A return flow sensor is sufficient to
evaluate the temperature difference when the flow temperatures are preset. The return flow
temperature can be limited either to a value depending on the outdoor temperature (variable) or to a fixed set point. When the temperature measured at return flow sensor RüF exceeds the limit value, the set point of the flow temperature (flow temperature of the heating
system, charging temperature) is reduced. As a result, the primary flow rate is reduced and
the return flow temperature falls.
In systems Anl 2.x, 3.1-3.4, 4.1-4.3, 5.1, 5.2, 7.x, 8.x and 9.x, the
Max. return flow tem-
perature
parameter (PA4 level) is used for limitation in the primary circuit during DHW heating if it is greater than the parameter valid for the primary circuit. In systems Anl 7.x, 8.x
and 9.x with additional return flow sensor RüF2, a
Max. return flow temperature
parameter
that is set to a lower limit (PA4 level) only leads to a limitation in the DHW circuit at first; the
return flow temperature limitation in the primary circuit only starts when the higher return
flow temperature limit valid for that circuit is exceeded. The
Limiting factor
determines how
strongly the controller responds when the limit values are exceeded in either direction (PI algorithm).
If just proportional component is to be implemented, set CO5 -> F16 - 1. This allows the integral-action component in the return flow temperature limitation algorithm of all control circuits of the controller to be deactivated.
The set point reading (flow temperature of the heating, charging temperature) blinks to indicate that a return flow limitation is active in the control circuit concerned.
Note: Using weather-compensated control with gradient characteristic, the return flow temperature is limited to a fixed value by equating the
Return flow temperature foot
and
Max.
return flow temperature
(PA1, 2, 3) parameters.
96 EB 5579 EN
System-wide functions
Note: If CO5 -> F00 - 1 is indicated, access to the return flow, flow rate and heat capacity
settings are locked.
Functions
WE Configuration
Return flow sensors RüF1/2/3 1
1.0
CO1, 2, 3, 4 -> F03 - 1
Limiting factor / 0.1 to 10.0
Return flow temperature
limitation with P algorithm
0 CO5 -> F16
Parameters
WE Parameter level / Range of values
Gradient, return flow 1.2 PA1, 2, 3 / 0.2 to 3.2
Level, return flow 0.0 °C PA1, 2, 3 / –30 to 30 °C
Return flow temperature foot 65 °C PA1, 2, 3 / 5 to 90 °C
Max. return flow temperature 65 °C PA1, 2, 3 / 5 to 90 °C
Max. return flow temperature 65 °C PA4 / 20 to 90 °C
or
Return flow temp. points 1 to 4 65 °C PA1, 2, 3 / 5 to 90 °C
Note: To ensure that the preset return flow temperature limiting can be met, make sure that
– the heating characteristic is not adjusted to ascend too steeply,
– the speed of the circulation pumps is not set too high,
– the heating systems have been calibrated.
7.5 Condensate accumulation control
Activate the Limit deviation for OPEN signal function to start up condensate accumulation
plants, in particular to avoid problematic excess temperatures. The controller response to set
point deviations which cause the primary valve to open is attenuated. The controller response
to set point deviations which cause the control valve to close remains unaffected.
Functions
WE Configuration
Limit deviation for OPEN signal 0
2 °C
CO1, 2, 3, 4 -> F13 - 1
Max. deviation / 2 to 10 °C
EB 5579 EN 97
System-wide functions
Note: The condensate accumulation control function can only be activated when no on/off
control has been configured, i.e. when CO1, 2, 3, 4 -> F12 - 1 applies.
7.6 Three-step control
The flow temperature can be controlled using a PI algorithm. The valve reacts to pulses that
the controller sends when a system deviation occurs. The length of the first pulse, in particular, depends on the extent of the system deviation and the selected
Proportional gain K
P
(the
pulse length increases as K
P
increases). The pulse and pause lengths change continuously until the system deviation has been eliminated. The pause length between the single pulses is
greatly influenced by the
Reset time T
N
(the pause length increases as TNincreases).
The
Transit time T
Y
specifies the time required by the valve to travel through the range of 0 to
100 %.
Functions
WE Configuration
Control mode
three-step/0 to 10 V
1
2.0
120 sec
45 sec
CO1, 2, 3, 4 -> F12 - 1, Rk_
K
P
(proportional gain) / 0.1 to 50.0
T
N
(reset time) / 1 to 999 sec
T
Y
(valve transit time) / 5, 10, 15, …, 240 sec
7.7 On/off control
The flow temperature can be controlled, for example, by activating and deactivating a
boiler. The controller switches on the boiler when the flow temperature falls below the set
point by T = 0.5 x
hysteresis
. When the set point is exceeded by T = 0.5 x
hysteresis
, the
boiler is switched off again. The greater the value you choose for
Hysteresis
, the lower the
activation/deactivation frequency will be. By setting the
Minimum ON time
, an activated
boiler remains switched on during this period regardless of the flow temperature fluctuations.
Similarly, a deactivated boiler will remain switched off regardless of the flow temperature
fluctuations if the
Min. OFF time
has been specified.
Functions
WE Configuration
Control mode
three-step/0 to 10 V
1
5 °C
2 min
2 min
CO1, 2, 3, 4 -> F12 - 0
Hysteresis / 1 to 30 °C
Min. ON time / 0 to 10 min
Min. OFF time / 0 to 10 min
98 EB 5579 EN
System-wide functions
7.8 Continuous control
The flow temperature can be controlled using a PID algorithm. The valve receives an analog
0 to 10 V signal. When a system deviation occurs, the proportional component immediately
causes the 0 to 10 V signal to change (the greater
K
P
, the greater the change). The integral
components becomes effective with time:
T
N
represents the time which elapses until the integral component has changed the output signal to the same extent as the immediate change
performed by the proportional component (the greater
T
N
, the slower the rate of change).
Due to the derivative component, any change of the system deviation is incorporated into the
output signal with a certain gain (the greater
T
V
, the stronger the change).
Functions
WE Configuration
Control mode
three-step/0 to 10 V
1
2.0
120 sec
0 sec
45 sec
CO1, 2, 3, 4 -> F12 - 1, Y_
K
P
(proportional gain) / 0.1 to 50.0
T
N
(reset time) / 1 to 999 sec
T
V
(derivative-action time) / 0 to 999 sec
T
Y
(valve transit time) / 5, 10, 15, ..., 240 sec
7.9 Releasing a control circuit/controller over the binary input
The release of an individual control circuit or the controller using the binary input only becomes effective when the respective control circuit is in automatic mode (icon ). The released control circuit always works in automatic mode; the deactivated control circuit behaves as if it were transferred to stand-by mode. It remains active, however, in any case for
processing of external demand. The control circuit can be released using the binary input
when the binary input is either open (bE = 0) or closed (bE = 1).
Note: In systems with supplementary heating circuit without a valve (Anl 2.x, 4.x), BE15 only
influences the operation of this heating circuit when the release Rk1 function is configured,
while the operation of the entire controller (except for processing of an external demand) is
affected when the release controller function is configured. In systems which only have supplementary heating circuits with or without DHW heating (Anl 3.x, 5.x), BE15 influences the
operation of the entire controller (except for processing of an external demand).
Functions
WE Configuration
Release Rk1 at BE15 0 CO1 -> F14 - 1*
Release Rk2 at BE16 0 CO2 -> F14 - 1*
Release Rk3 at BE17 0 CO3 -> F14 - 1*
EB 5579 EN 99
System-wide functions
Release controller at BE15 0 CO5 -> F15 - 1*
1 *bE = 1, 0
7.10 Processing of external demand in Rk1
The controller can process binary or analog requests for an externally required signal by a
more complex secondary system, provided the following requirements are met: the system is
configured without solar system and an analog request can be assigned to “0 to 10 V corresponds with 0 to 120 °C flow temperature“. In other words: flow temperature demand
12 °C/V. Analog requests below 10 °C (< 0.8 V input signal) are not processed;
overvoltage generates a maximum flow set point of 130 °C. An additional processing of requests for an externally required signal over the device bus can be configured.
Note: Overheating may occur in the heating circuits of the primary controller without control
valve.
Excessive charging temperatures in DHW circuits without control valve controlled by the primary controller are excluded when the default settings of the controller are used: while storage tank charging is active, no flow temperature higher than the charging temperature is
used by the primary controller.
Nevertheless, if the Priority for external demand function is activated, the external demand
is also processed during storage tank charging.
Function
WE Configuration
Priority for external demand 0 CO4 -> F16 - 1
Processing of external demand with a binary signal
Regardless of the operating mode set for control circuit Rk1 – except manual mode –, the
flow temperature specified as
Set point for binary demand processing
is used in control cir-
cuit Rk1 when the binary input (terminals 17/18) is either open (bE = 0) or closed (bE = 1).
Functions
WE Configuration
Processing of external demand in Rk1 0 CO1 -> F15 - 1
Processing of external demand, 0 to 10 V 0 CO1 -> F16 - 0
Processing of external demand, binary 0
1
CO1 -> F17 - 1
bE = 1, 0
100 EB 5579 EN
System-wide functions
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