Samson TROVIS 5500, TROVIS 5576 Mounting And Operating Instructions

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TROVIS 5500 Automation System TROVIS 5576 Heating and

District Heating Controller

Mounting and Operating Instructions

EB 5576 EN

Firmware version 2.41 Edition July 2018

®

Electronics from SAMSON

Safety instructions

The device may only be assembled, started up or operated by trained and experienced personnel familiar with the product. Proper shipping and ap

propriate storage are assumed.

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 5576 EN

Safety instructions

Revisions 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 can be selected.

1.71

(previous)

1.82 (new) An interrupted drying of jointless floors can be continued by selecting the restarting stages

START temperature maintaining phase or START 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 6.11.

Besides the release of single control circuits, the release of the controller is possible over the binary input. See section 7.9.

1.82

(previous)

1.90 (new) The new system code numbers Anl 14.1 to 14.3 increase the total of different hydraulic

schematics to 43. The new systems are all fitted with a buffer tank and a DHW storage tank. System Anl 14.3 additionally contains a solar circuit with reroutable heat flow. See sections 4 and 6.4.

For firmware 1.90 and higher, the maximum flow set point of the controller can be de

manded by issuing up to two analog signals for requesting external demand with se

quence control. See section 7.14.

1.90 (previous)

1.95 (new)

The priority operation (reverse control and set-back operation) can be set regardless of the time and temperature in the system. Refer to sections 6.9.1 and 6.9.2.

The setting CO1 -> F20 - 1 allows an external demand for heat to be made when insuffi

cient heat is supplied. Refer to section 7.17.

EB 5576 EN 3

Revisions to controller firmware in comparison to previous versions

1.90 (previous)

1.95 (new)

The priority operation (reverse control and set-back operation) can be set regardless of the time and temperature in the system. Refer to sections 6.9.1 and 6.9.2.

The setting CO1 -> F20 - 1 allows an external demand for heat to be made when insuffi

cient heat is supplied. Refer to section 7.17.

1.95 (previous)

2.00 (new)

New system (Anl 10.5) added. Refer to section 4. The limit switch for creep feed rate limitation can also be connected to input RüF1. In pre

vious versions, it could only be connected to the binary input (terminals 04/12). Refer to section 7.12.3.

A primary controller linked over the device bus can receive and process the demand of downstream controllers (version 2.00 and higher) optionally in control circuit Rk1 and/or Rk2. Refer to section 7.13.1.

The

Boiler pump OFF parameter has been replaced by the Hysteresis parameter. Refer to

section 6.4.

2.00 (previous)

2.12 (new)

New hydraulic schematic (Anl 11.6) added. Refer to page 64. New cooling control function (refer to section 5.13)

The cooling circuit causes a reversal of the operating direction and a minimum limitation of the return flow temperature in Rk1/2.

The demand processing using a 0 to 10 V signal can be applied to the 0 to 130 °C trans

mission range. Refer to section 7.11.

2.12 (previous)

2.13 (new)

The priority operation (reverse control and set-back operation) can be activated for system Anl 4.5 either for only one heating circuit (Rk1or Rk2) or for both heating circuits (Rk1and Rk2). Refer to section 6.9.

New function to control the speed of the charging pump based on the charging progress. Refer to section 6.7.

2.13 (previous)

2.14 (new)

The flow rate and capacity limitation over meter bus can be performed in control circuit Rk1 and additionally in Rk2. Refer to section 9.3.2.

2.14 (previous)

2.20 (new)

New hydraulic schematics Anl 16.x (buffer tank system) added. Refer to page 68. The drying of jointless floors cannot be cancelled due to a different flow temperature. Refer

to section 5.3.

4 EB 5576 EN

Revisions to controller firmware in comparison to previous versions

2.20 (previous)

2.24 (new)

Internal modifications

2.24 (previous)

2.26 (new) Outdoor temperature using 0 to 10 V signal function extended

Outdoor temperatures can be received or sent using a 0 to 10 V signal.

2.26 (previous)

2.28 (new)

New system Anl 11.5

2.28 (previous)

2.41 (new)

New functions and parameters in buffer tank systems (see section 5.5): CO1>F22: SLP depending on return flow temperature CO5´>F01: Y1 reverse CO5´>F02: Y2 reverse CO5´>F07: AE1 zero shift New functions and parameters in buffer tank systems (continued): PA1: Min. set point for buffer tank charging PA1: Stop buffer tank charging PA1: Charging temperature boost PA1: Lag time of charging pump PA4: Maximum buffer tank temperature

New Differential temperature control function (CO1>F23) in systems Anl 1.0 and 16.0. Refer to section 5.14.

TROVIS5570 Control Panel is discontinued. Restrictions when using a mini module (accessories no. 1400-7436). Refer to section 9.4.

Contents

1 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1.1 Operating elements . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1.1.1 Rotary pushbutton and changeover key . . . . . . . . . . . . . . . . . 9

1.1.2 Rotary switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

1.2 Operating modes . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

1.3 Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

1.4 Displaying data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

1.5 Setting the controller time . . . . . . . . . . . . . . . . . . . . . . . 17

1.6 Setting the times-of-use . . . . . . . . . . . . . . . . . . . . . . . . 18

1.7 Setting the party mode. . . . . . . . . . . . . . . . . . . . . . . . . 20

1.8 Activating extended operating level . . . . . . . . . . . . . . . . . . 21

1.8.1 Setting public holidays. . . . . . . . . . . . . . . . . . . . . . . . . 22

1.8.2 Setting vacation periods . . . . . . . . . . . . . . . . . . . . . . . . 23

1.9 Setting room and DHW temperature set points . . . . . . . . . . . . . 25

2 Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

2.1 Setting the system code number . . . . . . . . . . . . . . . . . . . . 27

2.2 Activating and deactivating functions. . . . . . . . . . . . . . . . . . 28

2.3 Changing parameters . . . . . . . . . . . . . . . . . . . . . . . . . 29

2.4 Calibrating sensors . . . . . . . . . . . . . . . . . . . . . . . . . . 30

2.5 Resetting to default values . . . . . . . . . . . . . . . . . . . . . . . 35

3 Manual operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

4 Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

5 Functions of the heating circuit. . . . . . . . . . . . . . . . . . . . . 74

5.1 Weather-compensated control . . . . . . . . . . . . . . . . . . . . . 74

5.1.1 Gradient characteristic. . . . . . . . . . . . . . . . . . . . . . . . . 75

5.1.2 Four-point characteristic . . . . . . . . . . . . . . . . . . . . . . . . 77

5.2 Fixed set point control . . . . . . . . . . . . . . . . . . . . . . . . . 78

5.3 Underfloor heating/drying of jointless floors . . . . . . . . . . . . . . 79

5.4 Deactivation depending on outdoor temperature . . . . . . . . . . . . 80

5.4.1 OT deactivation value in rated operation . . . . . . . . . . . . . . . . 80

5.4.2 OT deactivation value in reduced operation. . . . . . . . . . . . . . . 80

5.4.3 OT activation value in rated operation . . . . . . . . . . . . . . . . . 81

5.5 Buffer tank systems . . . . . . . . . . . . . . . . . . . . . . . . . . 81

5.6 Summer mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

5.7 Delayed outdoor temperature adaptation. . . . . . . . . . . . . . . . 85

5.8 Remote operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

5.9 Optimization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

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Contents

5.10 Flash adaptation. . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

5.10.1 Flash adaptation without outdoor sensor (room temperature dependent) . 88

5.11 Adaptation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

5.12 Pump management . . . . . . . . . . . . . . . . . . . . . . . . . . 89

5.13 Cooling control . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

5.14 Differential temperature control. . . . . . . . . . . . . . . . . . . . . 92

6 Functions of the DHW circuit . . . . . . . . . . . . . . . . . . . . . . 93

6.1 DHW heating in the storage tank system . . . . . . . . . . . . . . . . 93

6.1.1 DHW circuit additionally controlled by a globe valve . . . . . . . . . . 95

6.2 DHW heating in the storage tank charging system . . . . . . . . . . . 96

6.2.1 Cold charging protection. . . . . . . . . . . . . . . . . . . . . . . . 98

6.3 DHW heating in instantaneous heating system . . . . . . . . . . . . . 99

6.4 DHW heating with solar system. . . . . . . . . . . . . . . . . . . . 100

6.5 Intermediate heating operation . . . . . . . . . . . . . . . . . . . . 100

6.6 Parallel pump operation . . . . . . . . . . . . . . . . . . . . . . . 100

6.7 Speed control of the charging pump . . . . . . . . . . . . . . . . . 101

6.8 Circulation pump operation during storage tank charging . . . . . . . 101

6.9 Priority operation. . . . . . . . . . . . . . . . . . . . . . . . . . . 102

6.9.1 Reverse control. . . . . . . . . . . . . . . . . . . . . . . . . . . . 102

6.9.2 Set-back operation . . . . . . . . . . . . . . . . . . . . . . . . . . 103

6.10 Forced charging of the DHW storage tank. . . . . . . . . . . . . . . 103

6.11 Thermal disinfection . . . . . . . . . . . . . . . . . . . . . . . . . 104

7 System-wide functions . . . . . . . . . . . . . . . . . . . . . . . . 106

7.1 Automatic summer/standard time swichover . . . . . . . . . . . . . 106

7.2 Frost protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . 106

7.3 Forced operation of the pumps . . . . . . . . . . . . . . . . . . . . 107

7.4 Return flow temperature limitation. . . . . . . . . . . . . . . . . . . 107

7.5 Condensate accumulation control . . . . . . . . . . . . . . . . . . . 108

7.6 Three-step control . . . . . . . . . . . . . . . . . . . . . . . . . . 109

7.7 On/off control . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109

7.8 Continuous control . . . . . . . . . . . . . . . . . . . . . . . . . . 109

7.9 Releasing a control circuit/controller over the binary input . . . . . . . 110

7.10 Speed control of the charging pump . . . . . . . . . . . . . . . . . 111

7.11 Processing an external demand . . . . . . . . . . . . . . . . . . . . 111

7.12 Flow rate/capacity limitation in Rk1. . . . . . . . . . . . . . . . . . 113

7.12.1 Limitation using pulse input . . . . . . . . . . . . . . . . . . . . . . 113

7.12.2 Limitation using 0/4 to 20 mA signal . . . . . . . . . . . . . . . . . 114

7.12.3 Creep feed rate limitation using a binary input . . . . . . . . . . . . 115

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Contents

7.12.4 Limitation of the calculated capacity. . . . . . . . . . . . . . . . . . 116

7.13 Device bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117

7.13.1 Requesting and processing an external demand . . . . . . . . . . . . 117

7.13.2 Sending and receiving outdoor temperatures . . . . . . . . . . . . . 119

7.13.3 Synchronizing the clock . . . . . . . . . . . . . . . . . . . . . . . 119

7.13.4 Priority over all controllers . . . . . . . . . . . . . . . . . . . . . . 120

7.13.5 Connecting a TROVIS 5570 Room Panel . . . . . . . . . . . . . . . 120

7.13.6 Display error messages issued by the device bus. . . . . . . . . . . . 121

7.14 Requesting an external demand by issuing a 0 to 10 V signal . . . . . 122

7.15 Connecting potentiometers for valve position input. . . . . . . . . . . 122

7.16 Feeder pump operation. . . . . . . . . . . . . . . . . . . . . . . . 123

7.17 External demand for heat due to insufficient heat supply . . . . . . . . 123

7.18 Locking manual level . . . . . . . . . . . . . . . . . . . . . . . . . 124

7.19 Locking the rotary switches . . . . . . . . . . . . . . . . . . . . . . 124

7.20 Setting a customized key number . . . . . . . . . . . . . . . . . . . 124

8 Operational faults . . . . . . . . . . . . . . . . . . . . . . . . . . 125

8.1 Error list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125

8.2 Sensor failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125

8.3 Temperature monitoring . . . . . . . . . . . . . . . . . . . . . . . 126

8.4 Collective error message . . . . . . . . . . . . . . . . . . . . . . . 126

8.5 Error status register. . . . . . . . . . . . . . . . . . . . . . . . . . 127

9 Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . 128

9.1 System bus interface in combination with RS-232/RS-485

cable converters (for two-wire or four-wire bus) . . . . . . . . . . . . 128

9.2 Description of communication parameter settings . . . . . . . . . . . 129

9.3 Meter bus interface. . . . . . . . . . . . . . . . . . . . . . . . . . 130

9.3.1 Activating the meter bus . . . . . . . . . . . . . . . . . . . . . . . 130

9.3.2 Flow rate/capacity limitation using meter bus . . . . . . . . . . . . . 131

9.4 Memory module/mini module . . . . . . . . . . . . . . . . . . . . 134

9.5 Data logging. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134

10 Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136

11 Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . 138

12 Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142

12.1 Function block lists . . . . . . . . . . . . . . . . . . . . . . . . . . 142

12.2 Parameter lists . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159

12.3 Assignment of the rotary switches . . . . . . . . . . . . . . . . . . . 169

12.4 Sensor resistance tables . . . . . . . . . . . . . . . . . . . . . . . 170

12.5 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171

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Contents

12.6 Customer data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172

Frequently used abbreviations . . . . . . . . . . . . . . . . . . . . 190

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Contents

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 5576 EN 9

Operation

1.1.2 Rotary switches

Use the three rotary switches to adjust the required operating mode (icons on the left) and the relevant parameters (icons on the right). The top and middle switches are assigned to the heating circuits (see page 169). 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.

Rotary switch to set the operating modes of the heating circuit

Automatic/time-controlled operation with switchover between rated and reduced operation

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 when DHW heating is permissible/impermissible

DHW heating deactivated, frost protection only Manual operation: correction value adjusted in percent

and activation/deactivation of the pumps

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Operation

Rotary switch to set the parameters of the DHW circuit

Set point for DHW temperature Times-of-use for DHW heating Times-of-use for DHW circulation pump Party mode

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 5576 EN 11

Operation

1.3 Display

During operation, the display indicates the current time as well as information about the op

eration 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 operating level (–> section 1.4).

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Operation

STOP

18 2 3

4 5

10 11 12 13 14 15 16 17

Fig. 1 · Icons

1 Automatic operation 2 Day mode 3 Night mode 4 Vacation mode 5 Public holiday mode 6 Frost protection 7 Operational fault 8 Output bA9 9 Valve Rk1: OPEN 10 Valve Rk1: CLOSED

11 Storage tank charging

pump SLP 12 Output BA9* 13 Circulation pump UP5* 14 DHW demand 15 Circulation pump UP2* 16 Valve Rk2: OPEN,

output bA9: ON 17 Valve Rk2: CLOSED

output bA8: ON

18 Time-of-use 19 Control circuit assignment:

: Heating circuit Rk1 : Heating circuit Rk2

20 Outdoor temperature

dependent control deactivated

21 Demand with sequence control:

1: One output active 2: Two outputs active

* UP1, UP2, 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 in the operating level. To do so, select Info, confirm and proceed as described below.

Proceed as follows:

Select value. Depending on the configuration of the controller, the different data points are displayed:

Controller time.

Room temperature

: Heating circuit Rk1 : Heating circuit Rk2

Outdoor temperature

: Heating circuit Rk1 : Heating circuit Rk2

EB 5576 EN 13

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

°C

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

°C

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

°C

Temperature at the flow sensor VF

: Heating circuit Rk1 : Heating circuit Rk2

Temperature at the flow sensor VF1, primary exchanger circuit

Temperature at the flow sensor VF2, DHW circuit

Temperature at the solar collector sensor VF3

Temperature at the return flow sensor RüF

: Heating circuit Rk1 : Heating circuit Rk2

14 EB 5576 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

˚C

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

˚C

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

˚C

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

˚C

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

°C

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

˚C

Temperature at the return flow sensor RüF, DHW circuit

Temperature at the storage tank sensor SF1 (DHW storage tank)

Temperature at the storage tank sensor SF2 (DHW storage tank)

Temperature at the storage tank sensor SF3 (DHW storage tank)

Temperature at the storage tank sensor SF2, SF3 (buffer tank)

EB 5576 EN 15

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

˚C

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

°C

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

˚C

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

˚C

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

˚C

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

˚C

Temperature at the storage tank sensor SF4 (buffer tank)

Temperature at the flow sensor VF4

Compare set point/limit and actual value. By pressing the rotary pushbutton when the time is displayed, the date appears on the display.

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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

˚C

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

°C

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

Edit the controller time.

Confirm the adjusted time. Display shows: year

Edit the year.

Confirm the adjusted year. Display shows: date (day.month)

Edit the date. Confirm the adjusted date.

Display shows: time Return the rotary switch to the desired operating mode

(left side).

Note: The correct time is guaranteed after a power failure of 24 hours. Normally, the correct time is still retained at least 48 hours after a power failure.

EB 5576 EN 17

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* Bottom Circulation pump Bottom

* Refer to page 169 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)

18 EB 5576 EN

Operation

Proceed as follows: Turn appropriate rotary switch to position

“Times-of-use”. Display shows: 1–7

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

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 desired 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.

EB 5576 EN 19

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

ST OP

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

ST A RT

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

1.7 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 circuit* Bottom

* Refer to page 169 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

Edit desired length of the one-off time-of-use. Return the rotary switch to operating mode “Automatic“ (left side).

Note: The party timer counts down in steps of 15 minutes.

20 EB 5576 EN

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:

Heat capacity

Flow rate

Public holidays (can be changed)

Vacation periods (can be changed)

Valve positions

Modem status information

Meter bus status information

Switching states of the binary inputs

Info 2 · The following data are shown in the same sequence as shown below:

Controller ID (refer to section 8.6) Memory capacity of data logging module (section 9.5) Modbus station address (refer to section 9.2) Operating hours of solar circuit pump (refer to section 6.4) Water flow sensor (refer to section 6.3)

Opening the extended operating level:

Switch to configuration and parameter level. Display shows:

0 0 0 0

Set key number 1999. Confirm key number.

Display shows: time

Note:

–

The additional information is hidden when the key number 1999 is entered again.

–

The key number 1999 cannot be used to change the controller configuration and parameterization. A separate key number exists for configuration and parameterization. Refer to section 2.

EB 5576 EN 21

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:

In extended operating level, select “Public holidays“. Display shows:

Open data point for public holidays.

If applicable, select – – – –. Activate editing mode for public holiday. blinks.

Edit desired public holiday. Confirm public holiday.

To enter additional public holidays, re-select – – – – and repeat the steps in the fields highlighted in gray.

Exit data point for public holidays.

Note: Public holidays can also be entered in parameter level PA5 (–> section 2.3).

Deleting a public holiday:

Under data point for public holidays, select the holiday you wish to delete. Confirm selection.

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.

22 EB 5576 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

1.8.2 Setting vacation periods

During vacation periods, the controller constantly remains in reduced operating mode. A maximum of 10 vacation periods can be entered. Each vacation period can be separately assigned to the heating circuits Rk1 and Rk2 and/or the DHW circuit.

Parameters

WE Level / Range of values

Vacation period (START, STOP) – Extended operating level / 01.01 to 31.12

Proceed as follows:

In extended operating level, select “Vacation periods“.

Display shows:

Open data point for vacation periods.

Display shows:

START, – –.– – (day.month)

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)

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.

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 DHW circuit The vacation period can be assigned to a single control circuit or any combination of all three control circuits (Rk1 and Rk2, DHW circuit).

To enter additional vacation periods, re-select

– – – – and repeat the steps in the fields

highlighted in gray.

EB 5576 EN 23

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 parameter level PA5 (–> section 2.3).

Deleting vacation periods:

Under data point for vacation periods, select the start date of the period you wish to de

lete. Confirm selection.

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.

24 EB 5576 EN

Operation

1.9 Setting room and DHW temperature set points

For the heating circuits, the desired room temperatures during the day (Day set point) and during the night (Night set point) can be entered into the controller. 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 circuit*: DHW temperature set point Bottom

* Refer to page 169 for assignment

Parameters

WE Rotary switch / Range of values Day set point 20 °C Top, middle / –5 to 150 °C Night set point 15 °C Top, middle / –5 to 150 °C DHW temperature set point 60 °C Bottom / Min. to max. DHW temperature

Proceed as follows:

Turn appropriate rotary switch to “Set point temperature“. Display shows: temperature

Set temperature value. Return the rotary switch to the desired operating mode (left side).

EB 5576 EN 25

Operation

26 EB 5576 EN

Operation

Fig. 2 · Level structure of TROVIS 5576

Configuration and

parameter level

(start-up, see section 2)

PA4

PA5

PA6

CO7

CO6

CO1

PA2

Anl

CO2CO4CO5

End PA1

CO8

Operating level

(display of time and

operation, see section 1)

& key number

PA1/CO1: Heating circuit Rk1 ( ) PA2/CO2: Heating circuit Rk2 ( ) 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

2 Start-up

The modifications of the controller configuration and parameter settings described in this sec

tion 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 191. 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 7.20).

2.1 Setting the system code number

Various 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

Set valid key number. Confirm key number.

Display shows: PA1

Select Anl (-> Fig. 2). Activate editing mode for the system code number.

Edit system code number. Confirm system code number.

Display shows: End Return to operating level.

EB 5576 EN 27

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 config

uration 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:

CO1: Heating circuit Rk1 ( )

CO2: Heating circuit Rk2 ( )

CO3: Not used

CO4: DHW heating

CO5: System-wide functions

CO6: Modbus and meter bus communication

CO7: Device bus

CO8: Initialization of free inputs

Proceed as follows:

Switch to configuration and parameter level. Display shows: 0 0 0 0

Set valid key number. Confirm key number.

Display shows: PA1

Select configuration level (-> Fig. 2). Open configuration level.

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.

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:

28 EB 5576 EN

Start-up

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 desired changes and confirm. If applicable, the next function block parameter is displayed. Confirm all parameters to exit the opened function block.

To adjust additional function blocks, repeat the steps in the fields highlighted in gray.

Select End. Exit configuration level.

Select End. Return to operating level.

Note: All function block settings are saved in the non-volatile memory of the controller.

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:

PA1: Heating circuit Rk1 ( )

PA2: Heating circuit Rk2 ( )

PA3: Not used

PA4: DHW heating

PA5: Parameters for various systems

PA6: Communication parameters

PA7: Not used

PA8: Not used

EB 5576 EN 29

Start-up

Proceed as follows:

Switch to configuration and parameter level.

Display shows: 0 0 0 0

Set valid key number.

Confirm key number.

Display shows: PA1

Select parameter level (-> Fig. 2). Open parameter level.

Select desired parameter. Activate editing mode for the parameter.

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.

Note: All function block settings are saved in the non-volatile memory of the controller.

2.4 Calibrating sensors

The connected sensors are calibrated in configuration level CO5. The following applies:

CO5 -> F01 - 1, CO5 -> F02 - 0, CO5 -> F03 - 0: Pt 1000 (Pt 100) sensors (default)

CO5 -> F01 - 0, CO5 -> F02 - 0, CO5 -> F03 - 0: PTC (Pt 100) sensors

CO5 -> F01 - 0, CO5 -> F02 - 1, CO5 -> F03 - 0: NTC (Pt 100) sensors

CO5 -> F01 - 1, CO5 -> F02 - 1, CO5 -> F03 - 0: Ni 1000 (Pt 100) sensors

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 170. 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 sen

30 EB 5576 EN

Start-up

sor, the currently displayed sensor value must be changed such that it matches the tempera

ture (reference temperature) measured directly at the point of measurement. 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

Set valid key number. Confirm key number. Display shows: PA1

Select CO5 configuration level. Open CO5 configuration level.

Select function block F20. Activate editing mode for function block F20.

q Select appropriate sensor icon:

Room sensor

: Heating circuit Rk1 : Heating circuit Rk2

Outdoor sensor

: Heating circuit Rk1 : Heating circuit Rk2

EB 5576 EN 31

Start-up

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

°C

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

°C

Flow sensor VF

: Heating circuit Rk1 : Heating circuit Rk2

Flow sensor VF1, primary heat exchanger circuit

Flow sensor VF2, DHW circuit

Solar collector sensor VF3

Return flow sensor RüF

: Heating circuit Rk1 : Heating circuit Rk2

32 EB 5576 EN

Start-up

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

˚C

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

˚C

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

˚C

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

˚C

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

°C

Return flow sensor RüF, DHW circuit

Storage tank sensor SF1 (DHW storage tank)

Storage tank sensor SF2 (DHW storage tank)

Storage tank sensor SF3 (DHW storage tank)

EB 5576 EN 33

Start-up

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

°C

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

˚C

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

˚C

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

˚C

Storage tank sensor SF2, SF3 (buffer tank)

Storage tank sensor SF4 (buffer tank)

Flow sensor VF4

Display measured value. Measured value blinks.

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.

Select End. Exit configuration level.

Select End. Return to operating level.

34 EB 5576 EN

Start-up

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

˚C

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

˚C

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

˚C

2.5 Resetting to default values

All parameters in parameter levels PA1, PA2 and PA5 set over the rotary switches, except for the maximum flow temperature and the return flow temperature limits in PA1/PA2, can be reset to their default settings (WE).

Proceed as follows:

Switch to configuration and parameter level.

Set key number 1991. Confirm key number.

EB 5576 EN 35

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* Bottom

* Refer to page 169 for assignment

Proceed as follows:

Turn appropriate rotary switch to position “Manual operation“.

Select: POS_ : Correction value in percent UP_: Activation of the circulation pump SLP: Activation of the storage tank charging pump

Confirm selection. Display blinks.

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 desired 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) cannot be activated.

36 EB 5576 EN

Manual operation

BE BA AE AA

RüF1 VF1UP1RK1/Y1 RK1/Y1RF1 VF1UP1 RüF1 RF1

BE BA AE AA

SF1SLP BE BA AE AA

SF1SLP

Primary system

Secondary system

Primary system

Secondary system

4 Systems

Various hydraulic schematics are available. The systems can be configured both as primary and secondary systems. The fundamental hy

draulic differences between a primary and a secondary system are illustrated in Fig. 3.

1. A mixing valve replaces the heat exchanger in the heating/DHW circuit

2. A storage tank charging pump replaces the primary solenoid/thermoelectric valve

The controller settings do not have to be changed.

EB 5576 EN 37

Systems

Single-stage boiler

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, 7.x, 8.x and 16.x. The boiler can be controlled by an on/off output (CO1 -> F12 - 0).

38 EB 5576 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

System Anl 1.0

Default settings

CO1 -> F01 - 0 (without RF1) CO1 -> F02 - 1 (with AF1) CO1 -> F03 - 1 (with RüF1)

EB 5576 EN 39

Systems

BE BA AE AA

AF1RüF1 VF1UP1RK1/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

XX = SLP UP2 SLP UP2 Integration of flow sensor VF4 Possible Possible Possible Possible ZP integration (broken line)

with CO4 -> F10 - 1

– 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)

40 EB 5576 EN

Systems

UP1 XX

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 5576 EN 41

Systems

BE BA AE AA

SLPRüF1 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 (broken line)

with CO4 -> F10 - 1

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)

42 EB 5576 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 Yes No Note

–

VF2 takes the position of VF4

Default settings

CO4 -> F01 - 0 (without SF1) CO4 -> F03 - 0 (without RüF2) CO4 -> F04 - 0 (without water flow sensor at BE17) CO4 -> F05 - 0 (without VF4)

EB 5576 EN 43

Systems

BE BA AE AA

RK2/Y2

UP2 VF2

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)

44 EB 5576 EN

Systems

BE BA AE AA

AF1ZP RüF1 VF1 UP1

SLP (Rk2) 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

XX = SLP UP2 SLP UP2 Integration of flow sensor VF4 Not possible Possible Not possible Possible ZP integration (broken line)

with CO4 -> F10 - 1

– 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 5576 EN 45

Systems

BE BA AE AA

AF1

RüF1 VF1

UP1RK1/Y1 RF1

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)

46 EB 5576 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

XX = SLP UP1 SLP UP1 Integration of flow sensor VF4 Not possible Possible Not possible Possible ZP integration (broken line)

with CO4 -> F10 - 1

– Possible – Not possible

Note –

–

Binary output

BA9 replaced

by UP1

Only 0 to 10 V

output signal

available (Y2)

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 5576 EN 47

Systems

BE BA AE AA

AF1

RüF1

VF1

UP2

RK2/Y2RK1/Y1

RF2

VF2

RüF2 XX

DHW

heating

Unfold back cover!

System Anl 3.5

Note

Control and UP1 are only active during processing for external demand.

Default setting

CO1 -> F03 - 1 (with RüF1)

48 EB 5576 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 5576 EN 49

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

XX = SLP BA9 SLP Integration of VF4 Not possible Possible Not possible ZP integration (broken line)

with CO4 -> F10 - 1

– Not possible –

Note –

Only 0 to 10 V output signal available (Y2)

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)

50 EB 5576 EN

Systems

BE BA AE AA

AF1RüF1

VF1

UP2

RK2/Y2RK1/Y1

RF2

VF2

RüF2 RF1UP1

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 5576 EN 51

Systems

BE BA AE AA

AF1

RüF1

VF1

UP2

RK2/Y2RK1/Y1

RF2

VF2

RüF2

RF1

UP1

SF1SLP ZP

Systems Anl 7.1 and 7.2

System Anl 7.1 Anl 7.2

Type of DHW heating Type 1 Type 2

XX = SLP UP2 Integration of VF4 Not possible Possible ZP integration (broken line)

with CO4 -> F10 - 1

– 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)

52 EB 5576 EN

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

XX = SLP UP2 Integration of VF4 Not possible Possible ZP integration (broken line)

with CO4 -> F10 - 1

– –

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)

EB 5576 EN 53

Systems

BE BA AE AA

AF1

RüF1

VF1

UP1

RK1/Y1 RF1

RK2/Y2

VF2 RüF2

XX1)

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)

54 EB 5576 EN

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

XX = SLP BA9 SLP Integration of VF4 Possible Possible Possible ZP integration (broken line)

with CO4 -> F10 - 1

– Not possible –

Note

–

Only 0 to 10 V output signal available (Y2) 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)

EB 5576 EN 55

Systems

BE BA AE AA

UP1 XX

AF1 RK1/Y1

VF1

RüF1

RF1

UP2

RK2/Y2

VF2

RüF2

RF2

DHW heating

Unfold

back cover!

System Anl 10.5

Default settings

CO1 -> F01 - 0 (without RF1) CO1 -> F03 - 1 (with RüF1) CO2 -> F01 - 0 (without RF1) CO2 -> F03 - 1 (with RüF2)

56 EB 5576 EN

Systems

BE BA AE AA

RüF1 VF1RK1/Y1

RüF2 VF2RK2/Y2

UP1

UP2

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 (broken line)

with CO4 -> F10 - 1

– –

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 5576 EN 57

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)

The system code Anl 11.1 can also be used for systems with buffer tank. See page 60.

58 EB 5576 EN

Systems

BE BA AE AA

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 (broken line)

with CO4 -> F10 - 1

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)

The system code Anl 11.2 can also be used for systems with buffer tank. See page 60.

EB 5576 EN 59

Systems

BE BA AE AA

AF1

SF2

ZP SLPRüF1

VF1 VF4

RüF2UP1

SF1

RK1/Y1

RK2/Y2 RF1

UP2

VF2

System Anl 11.1/11.2 with buffer tank

Default settings

CO1 -> F01 - 0 (without RF1) CO1 -> F02 - 1 (with AF1) CO1 -> F03 - 1 (with RüF1) CO4 -> F01 - 1 (with SF1)

CO4 -> F02

Anl 11.1 - 0 (without SF2) Anl 11.2 - 1 (with SF2)

CO4 -> F03 - 0 (without RüF2)

60 EB 5576 EN

Systems

BE BA AE AA

AF1

RüF2

VF2RK2 ZP SF1

SF2SLP RK1 RF1VF1

RüF1UP1

System Anl 11.4

ZP integration (broken line) with CO4 -> F10 - 1

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)

The system code Anl 11.4 can also be used for systems with buffer tank. See page 62.

EB 5576 EN 61

Systems

BE BA AE AA

SLPRüF1

VF1 VF2

AF1

RüF2UP1RK1/Y1

RK2/Y2 RF1

SF1ZP

UP2 SF3 SF2

VF3

System Anl 11.4 with buffer tank

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)

62 EB 5576 EN

Systems

BE BA AE AA

AF1RüF2

VF2

VF3

RK2 ZP

SF1

SF2

SF3SLP

RK1UP2 RF1VF1

RüF1UP1

System Anl 11.5

Note DHW circuit with adjustable valve position for storage tank charging

in absolute priority operation. By using RüF2, the ready-adjusted valve position is governed by the return flow temperature limitation.

Default settings

CO1 -> F01 - 0 (without RF1) CO1 -> F02 - 1 (with AF1) CO4 -> F02 - 0 (without SF2) CO4 -> F03 - 1 (with RüF2)

EB 5576 EN 63

Systems

BE BA AE AA

RK1/Y1

RüF1

VF1 UP1 AF1

RF1

RüF2

SF1

RK2

System Anl 11.6

*Note: The pump in the DHW circuit is designed to run constantly. There-

fore, it must connected directly to the mains supply.

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)

64 EB 5576 EN

Systems

BE BA AE AA

RK1/Y1

VF2VF1 SF2 UP1 AF1

RüF2 SLP/ZP SF1 RF1

RK2/Y2

RüF1

System Anl 11.9

System

Anl 11.9

With pre-control

Anl 11.9

Without pre-control

Integration of VF4, UP2 Yes No 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 - 0 (without SF1) CO4 -> F03 - 0 (without RüF2) CO4 -> F04 - 0 (without water flow sensor at BE17) CO4 -> F05 - 0 (without VF4)

EB 5576 EN 65

Systems

BE BA AE AA

AF1

RüF1

VF1

UP1RK1/Y1

RK2/Y2 RF1

UP2

VF2

VF4

BE17

SF1

RüF2

Systems Anl 14.1 and 14.2

System Anl 14.1 Anl 14.2

Type of DHW heating Type 1 Type 2

XX = SLP UP1

Integration of UP1 Possible Not possible

Default settings

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 (w/o SF2) - 1 (with SF2)

66 EB 5576 EN

Systems

BE BA AE AA

RÜF1

XX1) RK1/Y1 VF2

BA8 BA9

UP1

AF1

VF1

SF3UP2

DHW

heating

Unfold

back

cover!

System Anl 14.3

Default settings

CO1 -> F02 - 1 (with AF1) CO1 -> F03 - 1 (with RüF1) CO4 -> F01 - 1 (with SF1)

EB 5576 EN 67

Systems

BE BA AE AA

RÜF1

SLP RK1/Y1

BA8 BA9

AF1VF1

RÜF2

ZP UP1SF3

SF4/VF4SF1 UP2

SF2

System Anl 16.0

Default settings

CO1 -> F02 - 1 (with AF1) CO1 -> F03 - 1 (with RüF1)

68 EB 5576 EN

Systems

BE BA AE AA

SF2

SF1RüF1 SLP

VF1RK1/Y1 UP1 AF1

System Anl 16.1

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)

EB 5576 EN 69

Systems

BE BA AE AA

SF2

SF1RüF1 SLP

VF1RK1/Y1 UP1 AF1

RK2/Y2

UP2

VF2

RüF2

RF2

System Anl 16.2

Default settings

CO1 -> F02 - 1 (with AF1) CO1 -> F03 - 1 (with RüF1)

70 EB 5576 EN

Systems

BE BA AE AA

SF2

SF1RüF1

SLP

VF1RK1/Y1 UP1 AF1

VF2

UP2

System Anl 16.3

Default settings

CO1 -> F02 - 1 (with AF1) CO1 -> F03 - 1 (with RüF1)

EB 5576 EN 71

Systems

BE BA AE AA

SF3

SF1

SLP

VF1RK1/Y1 AF1

UP1

RüF2

BA9

SF2

RüF1

System Anl 16.4

Default settings

CO1 -> F02 - 1 (with AF1) CO1 -> F03 - 1 (with RüF1)

72 EB 5576 EN

Systems

BE BA AE AA

SF3

SF2RüF1

SLP

VF1RK1/Y1 AF1

VF2

UP2

UP1

RüF2

BA9

SF1

System Anl 16.6

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)

EB 5576 EN 73

Systems

BE BA AE AA

SF3

SF1

RüF1

SLP

VF1RK1/Y1 AF1

RK2/Y2

UP2

VF2

RF2

RüF2

UP1

SF2

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 tempera

ture 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 -> F02 - 1 Outdoor temperature received

over 0 to 10 V input

–20 °C

50 °C

CO5 -> F23 - 1 Direction/AE for receiving temperature Lower transmission range / –50 to 100 °C Upper transmission range / –50 to 100 °C

If you wish to alternatively receive the outdoor temperature over the device bus, the follow

ing additional configurations must be made:

Device bus 0 CO7 -> F01 - 1; device bus address Receive value AF1 0 CO7 -> F07 - 1; register no.

74 EB 5576 EN

Functions of the heating circuit

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

100

110

120

130

[°C]

–20

[°C]–16–12–8–4048121620

140

150

–24 –28 –32 –36 –40

Fig. 5 · Gradient characteristics

Flow temperature

Outdoor temperature

Receive value AF2 0 CO7 -> F09 - 1; register no.

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.

EB 5576 EN 75

Functions of the heating circuit

[°C]

20 0 –20

[°C]

20 0 –20

[°C]

20 0 –20

The level needs to be decreased and the gradient increased if the room temperature rises when it is mild outside.

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 limi

tation of the return flow temperature.

Examples for adjusting the characteristic:

Old building, radiator design 90/70: Gradient approx. 1.8

New building, radiator design 70/55: Gradient approx. 1.4

New building, radiator design 55/45: Gradient approx. 1.0

Underfloor heating depending on arrangement: Gradient smaller than 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 Four-point characteristic 0 CO1, 2 -> F11 - 0

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

Parameters

WE Parameter level / Range of values Gradient, flow 1.8* PA1, 2 / 0.2 to 3.2 Level, flow 0 °C PA1, 2 / –30 to 30 °C Min. flow temperature 20 °C PA1, 2 / –5 to 150 °C Max. flow temperature 90 °C* PA1, 2 / 5 to 150 °C * With CO1, 2 -> F05 - 1, the following applies: Gradient, flow / 0.2 to 1.0 (1.0)

Max. flow temperature / 5 to 50 °C (50 °C)

76 EB 5576 EN

Functions of the heating circuit

[°C]

20 0 –20

5.1.2 Four-point characteristic

The four-point characteristic allows you to define your own heating characteristic. It is defined by four points each for the Outdoor temperature, the Flow temperature, the Re

duced 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 four-point characteristic has been selected, provided no additional functions (e.g. Optimiza

tion, Flash adaptation) have been selected.

Function

WE Configuration

Four-point characteristic 0 CO1, 2 -> 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 / –50 to 50 °C

EB 5576 EN 77

Functions of the heating circuit

VLmax

VLmin

100

90 80 70 60 50 40 30 20 10

[˚C]20 15 10 5 0 –5 –10 –15 –20

[˚C]

Fig. 6 · Four-point characteristic

P1 to P4 Points 1 to 4 t

Flow temperature

Outdoor temperature

---min Min. t

---max Max. t

Four-point characteristic Reduced four-point characteristic

Parameters

WE Parameter level / Range of values

Flow temperature Point 1

Point 2 Point 3 Point 4

70 °C 55 °C 40 °C 25 °C

PA1, 2 / –5 to 150 °C

Reduced flow temperature Point 1

Point 2 Point 3 Point 4

60 °C 40 °C 20 °C 20 °C

PA1, 2 / –5 to 150 °C

Return flow temperature Points 1 to 4 65 °C PA1, 2 / 5 to 90 °C Min. flow temperature 20 °C PA1, 2 / –5 to 150 °C Max. flow temperature 90 °C* PA1, 2 / 5 to 150 °C * With CO1, 2 -> F05 - 1, the following applies: Max. flow temperature / 5 to 50 °C (50 °C)

Note: The four-point characteristic function can only be activated when the Adaptation func

tion is not active (CO1, 2 -> 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 / Min. to max. flow temperature

Night set point 30 °C Top, middle / Min. to max. flow temperature

Parameters

WE Parameter level / value range Min. flow temperature 20 °C PA1, 2 / –5 to 150 °C Max. flow temperature 90 °C PA1, 2 / 5 to 150 °C

78 EB 5576 EN

Functions of the heating circuit

START

Note: A fixed set point control in heating circuit 2 with CO2 -> F02 - 0 can only be config

ured if CO1 -> F02 - 0 is set as well, because the heating circuit 2 with CO2 -> F02 - 0 only uses the measured outdoor temperature provided by heating circuit 1.

5.3 Underfloor heating/drying of jointless floors

Using function block setting CO1, 2 -> 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 parameter lev

els PA1, 2:

Value range of the gradient: 0.2 to 1.0

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. The start temperature is kept constant for the number of days entered in Maintain temperature (days). After- wards, in the course of 24 hours, this temperature is raised by the value entered in Tempera- ture rise per day, i.e. the default setting causes the flow temperature set point to rise to 30 °C. If the

Maximum temperature 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 of jointless floor runs to comply with DIN EN 1264 Part 4 when Start temperature is set to 25 °C and Temperature rise per day to 0.0 °C. As a result, the function starts with a flow temperature of 25 °C regu

lated to be kept constant for three days. Following this, the temperature is increased to the maximum adjusted temperature. The further process continues as described.

The underfloor drying function is activated by changing the setting

STOP to START (nSTART on the display). The restarting stages START temperature maintaining phase (nnSTART on the display), START max. temperature maintaining phase (

nnn

START on the display) and

START temperature reduction phase (

nnnn

START on the display) can be selected to continue

an interrupted drying process. The course of the drying process can be monitored in the in

formation level over the icon of flow temperature display ( ) of the associated heating cir

cuit, for example:

EB 5576 EN 79

Functions of the heating circuit

The drying process has been successfully completed when the additional icon in the flow tem

perature display goes out after the last phase. Any power failure that occurs while the func

tion is running automatically restarts the drying function. In systems in which the drying function is interrupted due to DHW heating (e.g. system 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.

Functions WE Configuration Underfloor heating

Drying of jointless floors

0 25 °C

0 °C 5 °C 45 °C 4 0 °C STOP

CO1, 2 -> F05 - 1 Start temperature / 20 to 60 °C

Maintain temperature (days) / 0 to 10 days Temperature rise per day / 0 to 10 °C Maximum temperature / 25 to 60 °C Maintaining time for max. temperature / 1 to 10 days Temperature reduction per day / 0 to 10 °C

START,nnSTART,

nnn

START,

nnnn

START

Note: The function block parameter can only be accessed when the function has started by deactivating the function block and activating it again.

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 af

fected 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 / 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 tempera

80 EB 5576 EN

Functions of the heating circuit

ture 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 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 / –50 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 ex

cessively 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 / –50 to 5 °C

5.5 Buffer tank systems

A heating characteristic based on a gradient or four points can be adjusted in PA1 for the systems Anl 14.1 to 14.3 and Anl 16.x with butter tanks. A buffer tank set point for day op

eration and a buffer tank set point for night operation can be set without outdoor sensors in the customer level. An external demand transmitted from secondary controlled heating cir

cuits, DHW circuit or an external request (over meter bus, 0 to 10 V or binary signal) can override the current buffer tank set point. The maximum demand is indicated as the buffer tank set point for SF1. If the temperature falls below the buffer tank set point at SF1, charging of the buffer tank is started.

In systems Anl 14.1 to 14.3, the set point of the charging temperature is always 6 °C above the

Buffer tank set point. Every charging of the buffer tank is concluded when the Buffer tank

set point

+3 °C is reached at the top buffer tank sensor. When charging of the DHW storage tank is demanded, the controller first checks whether the enough heat is available in the buffer tank to charge the DHW storage tank. If the temperature in the buffer tank is insuffi

cient, the DHW storage tank is charged by the district heating. Charging of the DHW storage tank has priority over a demand to charge the buffer tank. First after charging of the DHW

EB 5576 EN 81

Functions of the heating circuit

storage tank is completed, the buffer tank can be charged. In system Anl 14.3, a solar circuit with reroutable heat transfer medium flow is integrated. If the temperature difference be

tween the collector sensor RüF2 and one of the tank storage sensors SF3 or SF4 is greater than the

Solar circuit pump ON, the solar circuit pump UP2 is switched on and the corre

sponding storage tank is charged. If the temperature difference falls below the

Solar circuit

pump OFF parameter in both storage tank circuits, the solar circuit pump is switched off. In

addition, the solar circuit pump is always switched off when the measured temperatures at the storage tank sensors SF3 and SF4 have reached the limits entered in Max. storage tank

temperature

or Max. buffer tank temperature or the collector temperature rises above

120 °C. In systems Anl 16.x, set point of the charging temperature is determined by the Minimum set

point to charge buffer tank parameter setting in the PA1 level. The automatic adaptation (AT setting) causes the set point of the charging temperature to always be above the current buffer tank set point by the value entered in Charging temperature boost. Every other value entered in Minimum set point to charge buffer tank is used as the minum set point for the charging temperature which first starts to be variable at higher buffer tank set points. When a return flow temperature sensor RüF1 is used, the charging pump SLP (CO1 > F22 - 1) is first released to avoid cold charging when the temperature measured at RüF1 has reached the same temperature measured at SF1. The

Stop charging of the buffer tank parameter (PA1, default = AT) determines under which conditions the charging of the buffer tank is stopped. The automatic adaptation (AT setting) causes the buffer tank charging to be stopped when the temperature in the buffer tank reaches the value (Buffer tank set point + Hysteresis). Every other value entered for Stop charging of the buffer tank is rated as a fixed switch-off temperature for the buffer tank charging. When SF2 (CO1 > F06 - 1) is configured, SF2 is always used to stop the charging of the buffer tank. The storage tank charging pump is not switched off until the lag time (entered

Valve transit time Ty for Rk1 multiplied by Lag time of

charging pump) has elapsed. The operation of the feeder pump UP1 is either determined by

the ZP time schedule or prompted over an external demand. For systems with downstream control circuits, either only this external demand or the demand of the downstream control circuits causes the feeder pump UP1 to be activated, depending on the CO5 > F14 setting.

In systems Anl 16.3, 16.4 and 16.6, a solar circuit is integrated, which uses sensor SF3 for control. The collector circuit pump CP is activated when the temperature at the collector sen

sor RüF2 is higher than that at storage tank sensor SF2 by the value entered in

Solar circuit

pump ON. It is deactivated when the temperature difference falls below the value entered in Solar circuit pump OFF, when the temperature at the storage tank sensor SF3 reaches Max. storage tank temperature or the collector temperature rises above 120 °C.

82 EB 5576 EN

Functions of the heating circuit

Note: The buffer tank control circuit is deactivated as described in section x. When prede

fined gradients of heating characteristic (CO1 > F11 - 0) are used, night mode is not possi

ble in the buffer tank control circuit. In contrast to an active four-point characteristic (CO1 > F11 - 1): in this case, a four-point characteristic exists for day and night modes.

EB 5576 EN 83

Functions of the heating circuit

Functions WE Configuration Storage tank sensor SF2

SLP depending on return flow temperature

1 0

CO1 -> F06 - 1 CO1 -> F22 - 1

Parameter WE Parameter level / Range of values Minimum set point to charge buffer

tank

AT PA1 / AT to 90 °C

Stop charging of the buffer tank AT PA1 / AT to 90 °C Charging temperature boost 6 °C PA1 / 0 to 50 °C Lag time of charging pump 1.0 PA1 / 0.0 to 10.0 Solar circuit pump ON 10 °C PA4 / 1 to 30 °C Solar circuit pump OFF 3 °C PA4 / 0 to 30 °C Max. storage tank temperature 80 °C PA4 / 20 to 90 °C Boiler pump ON 60 °C PA5 / 20 to 90 °C Hysteresis 5 °C PA5 / 0 to 30 °C

5.6 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 heat

ing 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.

Function

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 ( ).

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Functions of the heating circuit

5.7 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 in

creases 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 out

door temperature in small steps. Assuming a

Delay of 3 °C/h, the adaptation would take

t =

123°°C

C h

= 4 h.

Note: The delayed outdoor temperature adaptation helps avoid unnecessary overloads of central heating stations in combination with either overheated buildings occurring, for exam

ple, 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 CO5 -> F05 - 1 Delayed OT adaptation when OT increases 0 CO5 -> F06 - 1

3 °C/h Delay / 1 to 6 °C/h

5.8 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:

Selection of the operating mode: – Automatic mode

– Day mode – Night mode

Set point correction: during rated operation, the room temperature set point can be in

creased 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 connected and activated remote operation. 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 using the device bus (–> sec

tion 7.13.5).

EB 5576 EN 85

Functions of the heating circuit

Functions

WE Configuration

Room sensors RF1/2 0 CO1, 2 -> 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

Note: The Day set point adjusted via the rotary switch remains unaffected by set point correc- tions 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.

5.9 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. During the advance heating period and the premature deactivation of the heating system, the

86 EB 5576 EN

Functions of the heating circuit

Fig. 7 · Wiring plan for Type 5244/5257-5 Room Panels to TROVIS 5576 for Rk1 or Rk2

Type 5244/5257-5

TROVIS 5576

Rk1 Rk2

Terminal 1 Terminal 5 Terminal 6 Terminal 2 Terminal 18 Terminal 18 Terminal 3 Terminal 15 Terminal 16

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 tempera

ture exceeds the adjusted value by 1 °C.

Note: Direct sunshine can cause the room temperature to increase and thus result in the pre

mature 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 1 CO1, 2 -> F01 - 1 Outdoor sensors AF1/2 0 CO1 (2) -> F02 - 1 Optimization 0 CO1, 2 -> F07 - 1

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

5.10 Flash adaptation

To ensure that the controller reacts immediately to room temperature deviations during rated or reduced operation, the function block setting CO1, 2 -> 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

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 KPset to a value other than 0 causes a direct

increase/decrease in flow temperature set point when a sudden deviation in room tempera

ture arises. A

Gain KPsetting 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 5576 EN 87

Functions of the heating circuit

Functions

WE Configuration Room sensors RF1/2 0 CO1, 2 -> F01 - 1 Flash adaptation 0

20 min

CO1, 2 -> F09 - 1 Cycle time / 1 to 100 min

KP(gain) / 0 to 25

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

5.10.1 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 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. A Gain KPset 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 KPsetting of 10.0 is recommended.

Functions

WE Configuration Room sensors RF1/2 0 CO1, 2 -> F01 - 1 Outdoor sensor AF1/2 1 CO1, 2 -> F02 - 0 Flash adaptation 0

20 min

CO1, 2 -> F09 - 1 Cycle time / 1 to 100 min

(gain) / 0 to 25

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 Flow day set point 50 °C PA1, 2 / 5 to 150 °C Flow night set point 30 °C PA1, 2 / 5 to 150 °C

88 EB 5576 EN

Functions of the heating circuit

5.11 Adaptation

The controller is capable of automatically adapting the heating characteristic to the building characteristics, provided a gradient characteristic has been set (CO1, 2 -> F11 - 0). The ref

erence room, where the room sensor is located, represents the entire building and is moni

tored to ensure that the room set point (

Day set point) is maintained. When the mean mea

sured 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 under

Gradient, flow.

Functions

WE Configuration Room sensors RF1/2 0 CO1, 2 -> F01 - 1 Outdoor sensors AF1/2 1 CO1 (2) -> F02 - 1 Adaptation 0 CO1, 2 -> F08 - 1 Four-point characteristic 0 CO1, 2 -> F11 - 0

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

Note: If the Flash adaptation function is already configured with a small cycle time, the Adaptation function should not be configured as well.

5.12 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 (-> system schematics from page 37 onwards). 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).

BA12 switches the pump on/off (in parallel with binary output BA1 on the network side)

BA13 releases the speed control in rated operation or sets the pump to minimum speed operation during reduced operation

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

EB 5576 EN 89

Functions of the heating circuit

Fault indication output BA13

0 CO5 -> F07 - 0

BA12 ON during thermal disinfection

0 CO4 -> F17 - 0

BA12 ON during DHW de

mand

CO4 -> F18 - 0

* CO5-> F17 - 0 or -1 only influences the switching state of binary output BA13!

5.13 Cooling control

Cooling control with outdoor sensor

When the cooling control function is activated in a control circuit, the four-point characteristic of the corresponding control circuit is automatically activated and the operating direction of the control output is reversed. In PA1 and/or PA2 the four points for the course of the set point based on the outdoor temperatures can be adjusted separately for day and night mode. The Base point for return flow temperature that can be adjusted with an active return flow sensor determines the point at which a minimum limitation of the return flow temperature starts: If the measured return flow temperature falls below this value, the flow temperature set point is raised. The four return flow temperature values in the four-point characteristic function have no effect.

Functions WE Configuration Cooling control 0 CO1, 2 -> F04 - 1 Four-point characteristic 0 CO1, 2 -> F11 - 1

Parameters WE

Parameter level / Range of values

Outdoor temperature Point 1

Point 2 Point 3 Point 4

5 °C 15 °C 25 °C 30 °C

PA1, 2 / –50 to 50 °C

Flow temperature Point 1

Point 2 Point 3 Point 4

20 °C 15 °C 10 °C

5 °C

PA1, 2 / –5 to 150 °C

Reduced flow temperature

Point 1 Point 2 Point 3 Point 4

30 °C 25 °C 20 °C 15 °C

PA1, 2 / –5 to 150 °C

90 EB 5576 EN

Functions of the heating circuit

Parameters WE

Parameter level / Range of values

Base point of return flow temperature

65 °C PA1, 2 / 5 to 90 °C

Note: The limiting factors of the Return flow sensor RüF1/RüF2 (CO1, 2 -> F03) functions apply during cooling control as well.

Cooling control without outdoor sensor

When the cooling control function is activated in a control circuit without outdoor sensor, only the adjustment limits for the day and night set points at the rotary switch as well as the Base point for return flow temperature can be adjusted in PA1 and/or PA2.

Functions WE Configuration Outdoor sensor 0 CO1 -> F01 - 0 Cooling control 0 CO1, 2 -> F04 - 1

Parameters WE

Rotary switch / Range of values Day set point 20 °C Top, middle / –5 to 150 °C Night set point 15 °C Top, middle / –5 to 150 °C

Parameters WE

Parameter level / Range of values Min. flow temperature 20 °C PA1, 2 / –5 to 150 °C Max. flow temperature 90 °C PA1, 2 / 5 to 150 °C Base point of return flow

temperature

65 °C PA1, 2 / 5 to 90 °C

Note:

–

The limiting factors of the Return flow sensor RüF1/RüF2 (CO1, 2, -> F03) functions ap

ply during cooling control as well.

–

The request for a signal by downstream control circuits or externally (when a pre-control circuit is used) is based on the maximum selection. Therefore, systems (e.g. system Anl

3.0) or controllers connected over a device bus are not suitable for transmitting the signal for required cooling. The

Set point boost (pre-control circuit) parameter can only generate

higher and not lower set points in the pre-control circuit.

EB 5576 EN 91

Functions of the heating circuit

5.14 Differential temperature control

In systems Anl 1.0 and 16.0, the differential temperature control causes the delivery rate of pump UP1 to be adapted through the 0 to 10 V output depending on the difference between the secondary flow temperature and the secondary return flow temperature. In system Anl 1.0 the sensor input RüF2 is automatically activated for this purpose with the setting CO1 > F23 - 1. In system Anl 16.0, the sensor inputs VF2 and RüF2 are automatically activated. The KP (influence factor) determines how strongly the controller responds when the tempera

ture deviates from the set point of the differential temperature control.

Functions WE Configuration Differential temperature control 0 CO1 -> F23 - 1

20 °C

1.0

20 %

Set point of differential temperature control / 0 to 50 °C Influencing factor KP / 0.1 to 10.0 Minimuum speed / 0 to 100 %

92 EB 5576 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 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 tempera

ture 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 5576 EN 93

Functions of the DHW circuit

SF1

SLP

Fig. 8 · Schematics of a storage tank system

SLP Storage tank charging pump SF1 Storage 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 stor

age 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 sen

sor 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 corre

sponding 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 is reached in the tank.

Functions

WE Configuration Storage sensor SF1 1 CO4 -> F01 - 1 Storage sensor SF2 CO4 -> F02 (- 1 when CO4 -> F19 - 1) SLP ON depending on return flow temperature 0 CO4 -> F15 Time-controlled switchover of storage sensors 0 CO4 -> F19 (-1 only when CO4 -> F02 - 1)

Parameter

WE Rotary switch / Range of values DHW temperature set point or charging temper

ature set point with CO4 -> F01 - 0

60 °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 Hysteresis** 5 °C PA4 / 0 to 30 °C

94 EB 5576 EN

Functions of the DHW circuit

Parameters

WE Parameter level / Range of values Charging temperature boost*** 10 °C PA4 / 0 to 50 °C Lag of storage tank charging pump 1.0 PA4 / 0 to 10.0 Sustained DHW temperature 40 °C PA4 / 5 to 90 °C

* 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 and 11.1, 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 con

trol.

The functions and parameters of the DHW heating in the storage tank system are extended 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 5576 EN 95

Functions of the DHW circuit

SF1

VF2

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 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 three 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 approximately 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 influ

enced by the system deviation in the storage tank charging circuit upon activation of the stor

age 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.

96 EB 5576 EN

Functions of the DHW circuit

SF1

SF2

SLP

TLP

Fig. 10 · Schematics of a storage tank charging system

TLP Exchanger charging pump VF Flow sensor SLP Storage tank charging pump SF1 Storage sensor 1 SF2 Storage 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 programmed 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 cir

cuit 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 af

ter t =

Lag time of storage tank charging pump x Valve 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 sensors 0 CO4 -> F19

Parameter

WE Rotary switch / Range of values DHW temperature set point or charging temper

ature set point with CO4 -> F01 - 0

60 °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

EB 5576 EN 97

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 Max. charging temperature 80 °C PA4 / 20 to 150 °C (only with VF4) Lag of storage tank charging pump 1.0 PA4 / 0 to 10.0 Sustained DHW temperature 40 °C PA4 / 5 to 90 °C

* 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

6.2.1 Cold charging protection

In system Anl 1.1, the cold charging protection function causes a storage tank charging to be started first when the primary flow temperature is sufficiently high enough. The CO4 > F22 - 1 setting automatically activates the input FG2 to measure the primary flow temperature. If the measured primary flow temperature is lower than the measured storage tank temperature (e.g. due too a supply line that has cooled down at the start of a storage tank charging), the heating circuit valve is only opened 10 % at first. The storage tank charging is not released in absolute priority operation until the primary flow temperature has risen enough as a result. Parallel operation must be additionally configured if it is required.

Functions

WE Configuration Cold charging protection 0 CO4 -> F22 - 1 Parallel pump operation 0

10 min

40 °C

CO4 -> F06 - 1 Cancel parallel operation when system de

viation occurs/ 0 to 10 min Flow limit temperature for parallel opera

tion / 20 to 90 °C

98 EB 5576 EN

Functions of the DHW circuit

6.3 DHW heating in instantaneous heating system

Without a water flow sensor or flow switch, the required DHW temperature at sensor VF is only regulated during the times-of-use of the circulation pump ZP. The water flow sensor 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. If the control is configured with a water flow sensor, attenuation in the DHW circuit (CO4 -> F13 - 1) is automatically activated and set to 8 °C.

Note: Outside the time-of-use of DHW heating, the hot water is regulated to the Sustained DHW temperature.

Functions WE Configuration Water flow sensor 0

AnA

CO4 -> F04 - 1 AnA (water flow sensor), bin (flow switch)

Flow sensor V4 0 CO4 -> F05 - 1

Parameter WE Rotary switch / Range of values DHW temperature set point 60 °C Bottom /Min. to max. DHW temperature

Parameters WE Parameter level / Range of values Sustained DHW temperature 40 °C PA4 / 5 to 90 °C 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 150 °C (only with VF4)

EB 5576 EN 99

Functions of the DHW circuit

Fig. 11 · Schematics of an instantaneous heating system with water flow sensor

(CO4 -> F04 - 1, select: AnA)

VF Flow sensor ZP Circulation pump WW Hot water KW Cold water

Water flow sensor

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 sensor SF3 and the sensor at the solar collector VF3 is determined. The Solar circuit pump ON parameter determines the minimum temperature difference between sensors VF3 and SF3 required to activate the solar circuit pump. If the temperature difference falls below the value of

Solar circuit pump OFF, the solar circuit pump is switched off. Ba

sically, the solar circuit pump is also switched off when the water temperature measured at sensor SF3 has reached the

Max. storage tank temperature or the solar collector temperature

rises above 120 °C.

Note: The times-of-use of the DHW circuit do not affect the operation of the solar system.

After entering the key number 1999, the operating hours of the solar circuit pump are displayed in the extended operating level.

Parameters

WE Parameter level / Range of values Solar circuit pump ON 10 °C PA4 / 1 to 30 °C Solar circuit 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 and 8.x. 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 and 8.x. 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 cur

rent flow temperature demand of the pump circuit is lower than the adjusted

Flow limit tem

100 EB 5576 EN

Functions of the DHW circuit

Samson TROVIS 5500, TROVIS 5576 Mounting And Operating Instructions

Specifications and Main Features

Frequently Asked Questions

User Manual