Kromschroder E8.5064 V1 Operating Instructions Manual

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E8.5064 V1

System Manager

Operating instructions

Please observe the safety instructions and read through this manual carefully before commissioning the equipment.

Safety information General information

General information

Safety information

Power connection regulations

Please note the connection conditions specified by your local electrical power supply company and the VDE regulations. Your heating control system may only be installed and serviced by appropriately authorised specialists.

E If the system is not installed properly, persons using it

are at put at risk of fatal or serious injury.

Warranty conditions

If the system is not installed, commissioned, serviced and repaired properly, it will render the manufacturer's warranty null and void.

Important text passages

! Important information is highlighted by an

exclamation mark.

E This attention symbol indicates dangerous situations.

Note

! The operating manual describes the maximum

version of the controller, meaning that not all statements are relevant for your device.

Description

Declaration of conformity

This device corresponds to the requirements

of the relevant guidelines and standards, if the

corresponding regulations and the manufacturer's

instructions are complied with.

Function

The device contains a number of functions and must be set in accordance with use. The following functions are mapped in the System Manager:

• Cascade modulating HS

• Control of 2 HS or 2-stage HS via relay

• Water heating, 2 mixed heating circuits, as well as 2

extra functions

• Demand-related circulation pump control

• Automatic toggle between summer and winter time

• Activation of a timer is possible

General information Contents

Contents

General information 2

Safety information 2

Power connection regulations 2 Warranty conditions 2 Important text passages 2 Note 2

Description 2

Declaration of conformity 2 Function 2

Contents 3

Part 2: Overview of display values and settings 14

Installation 13 Hot water 13 Heating circuit I / II 13 Solar/MF 13

General area 14

Date/Time/Holiday 14 Service 16

Code number Entry 16 RELAY TEST 16 SENSOR TEST 17

Part 1: Operation 8

Operation in normal mode 8

Operating elements 8 Ç Operating mode selection 8

Effect of the operating mode 9 Display in normal operation 10

Changing the settings 11

Operating elements 11 Operating level 12 Areas 13

General 13 Display 13 User 13 Time programs 13 Expert 13 Expert FA (only for FA via BUS) 13

Levels 13

SW NO XXX-XX 18 CASC MANUAL (only with code no.) 18 BURNER TIME and BURNER START 18 LIMITER TEST 18 SERVICE 19 RESET … 19

Display Range 20

INSTALLATION 20

T-OUTSIDE 20 EXT SETPOINT 20 T-HEADER DES (Heat requirement) 20 T-HS 1 (and T-HS 2 – 8 where cascades apply) 20 BUFFER-T/M/B 20 MOD DEPTH (only in the case of HS via BUS connection) 20

Hot water 21

Contents General information

T-DHW L (storage tank lower temperature) 21 T-ROOM DES A (current value for set room temperature) 21 T-ROOM (room temperature) 21

Solar/MF 22

Solar integration 22 T-MF(1-4) 22

User Area 23

INSTALLATION 23

GERMAN => Language 23 CONTRAST 23 DISPLAY SEL 23 SELECT PROG 23

Hot water 24

1X DHW (1x Hot water) 24 T-DHW 1-3 DES (Hot water temperature setting) 24 BOB-VALUE (Operation Without Burner) 24 CIRCL-P-DHW (Circulation with hot water) 24 ANTILEGION (Hot water short time heating function) 24

Heating circuit I / II 25

MODE 25 T-ROOM DES 1-3 25 T-REDUCED 25 T-ABSENCE 25 T-LIMIT DAY/T-LIMIT N (Day/Night) 26 HEATSLOPE 26 ADAPTION (Heat slope adaptation) 27

ROOM INFL (Room sensor influence) 27 T-ROOM ADJ (room sensor adaptation) 27 OPT HEAT UP (Heating optimisation) 28 MAX OPT-TIME (Maximum bring-forward) 28 OPT REDUCED (Reduction optimisation) 28 PC-ENABLE 28 RETURN 28

Timer Program Area 29

List of available time programs 29 Selecting a timer program 29 Timer/heating program adjustment 30

Expert area 33

INSTALLATION 33

CODE-NO 33 BUS-ID HS (- - - -) 33 BUS ID 1 / 2 (Heat circuit number) 33 AF SUPPLY (Outdoor sensor power supply) 33 BUS TERMIN (Bus terminating resistor) 33 EBUS SUPPLY (supply for eBUS) 34 TIME MASTER 34 MAX T-HS1/2 (Max. temperature HS) 34 MIN T-HS1/2 (min temperature HS) 34 MAX/MIN T-HEADER (only for cascades) 34 0-10 V Function 35 V-CURVE (only for 0-10V input/output) 35 CURVE 11-xx 35 T-WARM UP (Warm-up relief) 36 MIN DELIMI (minimum delimiter HS) 36

General information Contents

HYSTERESIS (Dyn. switching hysteresis stage 1) 36 with HYST TIME (Hysteresis time) 36 DETECTED HSS (number of heat generators) 37 CAP/STAGE (boiler output for each stage) 37 NEW CONFIG (new BUS configuration) 38 MIN MOD CASC (min. modulation cascade) 38 HW-BOILER (number of stages for HW operation) 38 CONTROL DEV (header control variance) 38 DES OUTPUT (required system output [in %]) 38 SWITCH VALUE (-99 – +99) 38 BLOCK TIME (currently remaining value) 38 RESET TIME (resetting time for I-Controller) 39 MODULAT MAX 39 MODULAT MIN 39 MIN MOD HS 39 MODULAT DHW (only for HW-boiler) 40 SEQUENCE 1 (boiler sequence 1) 40 SEQUENCE 2 (boiler sequence 2) 40 SEQU CHANGE (sequence change mode) 40 SEQ SW TIME(time to sequence change) 41 BLOCK-TIME (delay time for next stage) 41 HYST BURNER2 (for solid fuel / 2. burner) 41 HS COOL-FCT (cooling function for boiler) 41 with T-HS COOL (starting temperature for cooling) 41

Switching pattern for 2-stage burners 42

HS 1 TYPE (primary heat generator type) 43 HS1 BUS (connection for HS) 43

HS 2 TYPE (secondary heat generator type HS => A7) 43 STORAGE HS2 (heat accumulator for HS2) 43 BUFFER (heater buffer storage type) 44

Screed program 45

SCREED (activation of screed drying process) 45

Hot water 46

DHW RELIEF (Charge pump blocking) 46 PARALLEL DHW (Pump parallel running) 46 T-HS DHW (increase during HW operation) 47 HYST DHW (hot water hysteresis) 47 DHW FOLLOWUP (pump run-down time) 47 THERM INPUT (storage tank with thermostat) 47 WALL HUNG (for modulating HS) 47 LOAD THROUGH (only with F12 = T-DHWLOWER) 47

Heating circuit I / II 48

HC FUNCTION (heating circuit function selection) 48 PUMP MODE (pump operating mode) 49 MIXER OPEN (open mixer dynamic) 49 MIXER CLOSE (close mixer dynamic) 50 MAX T-FLOW (max. flow temperature) 50 MIN T-FLOW (min. flow temperature) 50 T-FROST PROT (frost protection temperature) 50 T-OUT DELAY (outside temperature delay) 50 SLOPE OFFSET (heating slope distance) 51 B-HEAT SINK (circuit enable) 51

Contents General information

Auxiliary relay functions 52

FUNC RELAY 1 (function selection relay MF1) 52 T-MF1 SETP (switching temperature relay MF1) 52 MF 1 HYST (hysteresis relay MF1) 52 F15 FUNCTION (sensor function F15) 55

Part 3: General function description 56

Heat circuit control 56

Weather-dependent control 56

Room sensor influence 56 Hot water generation 56 OwB => operation without burner 56 Frost protection function 56 eBUS burner controls 57 EEPROM check 57 Circulation pump control 58

Switched according to heating requirement 58

Switched according to heating limits 58 Delayed pump switch-off 58 Pump blocking protection 58 Mixer motor blocking protection 58

Part 4:Appendix 59

Remote controls 59

Operation-control module Merlin BM, BM 8, Lago FB 59 Remote control FBR2 59 DCF receiver 60 PC 60 Telephone switch 60

System bus 61

The heating system 61 Error messages 62

Troubleshooting 63 Technical data 64

General information Contents

Operation in normal mode Part 1: Operation

Part 1: Operation

For initial start-up or the "level Installation" please read the installation manual.

Operation in normal mode

Ç Operating mode selection

Turn the knob to select the operating mode required. The operating mode selected is indicated by a symbol at the bottom of the display. It takes effect when the setting is not changed for 5 s.

The following operating modes are available for selection:

(operating flap closed)

Operating elements

Ç Change the set operating mode

i Standby / OFF

(Heating OFF and hot water preparation OFF, only frost protection mode)

F1 Automatic mode 1

(Heating according to timer program 1; HW according to HW program)

F2 Automatic mode 2

(Heating according to timer program 2; HW according to HW program)

h Day mode

(24 h heating with comfort temperature 1; HW according to HW program)

C Night mode

(24 h heating with reduced temperature; HW according to program)

F Summer mode

(Heating OFF, HW according to HW program)

Part 1: Operation Operation in normal mode

W Service (automatic reset after 15 min)

Boiler regulated at Boiler temperature = max. boiler temperature= see page 34 ; when the boiler temperature has reached 65°C, the consumers are regulated to their flow temperature to dissipate heat (cooling function).

! The cooling function must be explicitly enabled in

the consumer circuits by means of a set value.

Effect of the operating mode

The operating mode set here affects the boiler regulation and the integrated heating circuits of the controller.

Each heating circuit can be assigned a separate operating mode from the one set by means of the "operating mode" parameter in the user level of the corresponding heating circuit.

When the "i = Standby/OFF", and "F = Summer mode" operating modes are set, they have a reducing effect on system controllers with respect to all heating circuits and consumer circuits in the entire system.

! For mixer controllers the reduction of operating

mode is only effective for internal heating circuits.

Operation in normal mode Part 1: Operation

Display in normal operation

! Due to the tolerances of sensors, deviations of

+/- 2K (2°C) are normal between various temperature displays. Temperatures which change rapidly can have higher deviations for short periods due to the different time-related behaviour of various sensors.

! The display of the current heating program applies

to the device's first heating circuit. In case of having two heating circuits the display can be set to the 2nd circuit

Explanations

A Current time

B Freely selectable display (refer to "DISPLAY SEL" parameter)

C DCF reception OK (only if receiver is connected via eBUS)

D Bus icon (if this icon does not appear, check data line to connected CAN controllers => check eBUS via DISPLAY level)

E Display of the active heating program for the first heating circuit (here: 6:00 to 08:00 hrs and 16:00 to 22:00 hrs)

F Status display: H internal burner 1 relay ON;

D heating mode; F hot water preparation

G Mode selector switch, the display applies to all

internal heating circuits for which a separate operating mode has been selected via the "MODE" set value (here: F

=> Heating according to timer

program 2).

H Display of current temperature of HS 1 or header

temperature in the case cascades

I Display of numbers of active heat generators

(only applies to cascades)

! With HS1 BUS = 5 is indicated firmly here 0

Part 1: Operation Changing the settings

Changing the settings

The operating flap must be opened first in order to change

Operating elements

or request set values.

=> Controller switches to Operation mode

Ç A => Shaft encoder

Search for value/level or adjust value

Ä B => Programming key

• Select a value level

• Select a value level to change

• Save a new value

C => Change display LED ON => The value in the display can be changed by actuating the shaft encoder (A).

a Display indicating the current level

b Holes to unlock the controller fixation.

Insert a thin screwdriver deep into the holes and then lift up the controller.

In Manual mode, all the pumps and first burner stage are switched on. The mixers are not changed / accessed (“DISPLAY EMERGENCY OPERATION”).

Limitation (switch-of with 5K hysteresis):

• Burner => MAX T-MODULE (expert)

• Heating circuit pumps => MAX T-FLOW (expert)

• Cylinder charging pump => T-DHW I (user)

E Caution, overheating, e.g. with floor or wall heating! =>

E => PC connection via optical adapter

D => Manual-Automatic switch.

Set mixer by hand!

Changing the settings Part 1: Operation

Operating level

SERVICE

Open operating flap

INSTALLATION HOT WATER HEAT CIRCUIT I HEAT CIRCUIT II

CIRCL TIME HOTW-PROG

INSTALLATION HOT WATER HEAT CIRCUIT I HEAT CIRCUIT II

Expert FA INSTALLATION

General

DATE/TIME/HOLIDAY

Ç Turn anticlockwise

Ç Turn clockwise

Display

SOLAR/MF

User

SOLAR/MF

Time programs

HTG-PROG ID 1 etc...

Expert

SOLAR/MF

Ê Ì

Operation is divided into different areas:

General - Display - User - Time programs – Expert Expert FA.

Opening the hinged control panel cover automatically takes you to the display and indicator area.

• The current area "DISPLAY" appears in the display for

a short time (1 clock circuit).

• After the clock circuit the display switches to the

current operating level "INSTALLATION".

• This is displayed for a short time (1 clock circuit) when

you switch to a new area.

Ç Select the level in which the value to be adjusted or

displayed can be found using the rotary knob.

Ä Press Prog button! =>

Open / select level

Ç Search for value using rotary knob Ä Press Prog button! => Select value

LED lights up => adjustment can now be made

Ç Modify value using rotary knob Ä Press Prog button! => Store value - LED goes off

When the operating flap is first opened after voltage is applied, the level SETUP is displayed once only the values grouped here have been set the controller is operable.

. Once

Part 1: Operation Changing the settings

Areas

General

Value selection summary Service => for service engineers Date/Time/Holiday => for users

Display

System value display (e.g. sensor values and setpoints). No adjustments can be made. Operating errors are therefore excluded in this area.

User

Summary of settings that can be made by the operator.

Levels

The settings in the different areas are sorted into operating levels

• INSTALLATION

• HOT WATER

• HEATING CIRCUIT I

• HEATING CIRCUIT II

• SOLAR/MF

Installation

All display values and settings that relate to the heat generator or the entire system and cannot be assigned to a consumer circuit.

Hot water

Time programs

Summary of time programs for heating circuits, the hot water circuit and extra functions where applicable

Expert

Summary of values for which expert knowledge is required to make settings (installation technician).

E Values in the expert level are protected by a code no.

(damage/malfunction possible).

Expert FA (only for FA via BUS)

Summary of values transmitted by the automatic firing device.

All display values and settings that affect central hot water preparation and circulation.

Heating circuit I / II

All indicator and set values that relate to the corresponding consumer circuit (also, for example, as decentral hot-water circuit).

Solar/MF

All indicator and set values that relate to solar energy recovery and settings for the multifunction relay.

! An overview of all settings can be found on the

following pages.

General area Part 2: Overview of display values and settings

Part 2: Overview of display values and settings

General area

(Select main level using Ç and open with Ä)

Date/Time/Holiday

This area contains a series of different values in order to provide rapid access.

(Select values/value group using Ç and open with

Ä)

Date/time => Value group (General -> Date/Time/Holiday level) All the values in this group are set in sequence => adjust using Ç => continue with Ä

TIME (Minutes)

TIME (Hours)

Current minutes blink and can be adjusted

Current hours blink and can be adjusted (seconds are set to "00" when stored)

YEAR Adjust current year

MONTH Adjust current month

DAY Adjust current day (date)

~ Hinged cover OPEN Î search for level to the left with Ç,

open with

! If a heating system controller has been set to be the

TIME MASTER (time setting for all controllers, see EXPERT/INSTALLATION) or a DCF (Radio time receiver) has been installed in the system, the time is blanked out on all the other controllers in the system.

! There may be a time difference of up to 2 minutes

per month (correct time if necessary). If a DCF receiver is connected the correct time is always displayed.

The current weekday is calculated automatically. Checking can take place using the selectable additional display in the standard display => set to "Day"

It is possible to change from summer to winter time by entering the date.

Part 2: Overview of display values and settings General area

Holiday => Value group (General -> Date/Time/Holiday level) All the values in this level are set in sequence => adjust using Ç => continue with Ä

YEAR START Set current holiday start year

MONTH START Set current holiday start month

DAY START Set current holiday start day

YEAR STOP Set current holiday end year

MONTH STOP Set current holiday end month

DAY STOP Set current holiday end day

Summer time => Value group (General -> Date/Time/Holiday level) All the values in this level are set in sequence => adjust using Ç => continue with Ä

MONTH START Set month for start of summer time

DAY START Set earliest day for start of summer

time

MONTH STOP Set month for start of winter time

DAY STOP Set earliest day for start of winter time

! Please do not enter the day of travel as the start

date, but the first day of the holiday (no more heating from this day).

! Please do not enter the day of travel as the end

date, but the last day on which there is to be no heating. When you arrive home the house should be warm and there should be hot water.

! Stop holiday function => e.g. for early return by

pressing the program switch.

! Not with Time Master or DCF ! The default setting is valid for Central European time

zones. A modification is only required if the date for the time change is changed by political decree.

! The earliest date on which the change will occur

must be set. The controller performs the time change on the Sunday following this date at 2.00 am or 3.00 am.

! If no time change is required, please set

MONTH STOP to the same value as MONTH START and DAY STOP to the same value as DAY START.

General area Part 2: Overview of display values and settings

Service

This area contains values for the customer service engineers in order to provide rapid access.

(Select operating level using Ç and open with Ä)

Relay test => Value group (code no. required) (General -> Service level) Select relay using Ç => relay switches

00 No relay

01 A1: Pump, heating circuit 1

02 A2: Pump, heating circuit 2

03 A3: Hot water charging pump

04 A4: Mixer OPEN, heating circuit 2

05 A5: Mixer CLOSED, heating circuit 2

06 A6: HS 1 ON

07 A7: HS2 ON [2-stage:HS 1+2 (after 10s) ON]

08 A8: Mixer OPEN heating circuit 1 / Multifunction 1

09 A9: Mixer CLOSED heating circuit 1 / Multifunction 2

10 A10: Multifunction 3

11 A11: Collector pump / Multifunction 4

~ Hinged cover OPEN Î search for level to the left with Ç,

open with

A code number must be entered for this function.

Ä Select Relay Test => "Code number" level

Code number Entry

Ä Start code number entry => [LED] Ç Select 1st digit Ä Confirm entry Ç Select 2nd digit Ä Confirm entry Ç Select 3rd digit Ä Confirm entry Ç Select 4th digit Ä Confirm entry

=> "Relay Test"

RELAY TEST

Ä Start relay test Ç Select relay => Relay switches Ç Select next relay or use Ä to stop relay test

Part 2: Overview of display values and settings General area

SENSOR TEST

Start sensor test with Ä, use Ç to select sensor => temperature is displayed; Use Ä to stop sensor test

Sensor test => Value group (General -> Service level) Select sensor using Ç => value is displayed

F1 Buffer storage temperature Lower F2 Buffer storage temperature middle or

room temperature heating circuit 1 F3 Upper buffer storage temperature F5 Flow temperature, heating circuit 2 F6 Upper hot water temperature F8 Heat generator /header temperature F9 Outside temperature F11 Flow temperature heating circuit 1

or temperature multifunction 1 F12 Hot water temperature lower or temperature

multifunction 2 F13 Solid fuel boiler temperature or collector 2

or temperature multifunction 3 F14 Collector 1 temperature or

temperature 4 F15;

Light; 0-10V I

Room temperature heating circuit 2 or

measured value of the light sensor or

voltage value 0-10V input

General area Part 2: Overview of display values and settings

Other entries

(General -> Service level) Select value using Ç => value is displayed

SW NO XXX-XX Software number with index

CASC MANUAL (1-8; only with code no.)

BURNER TIME (1-8)

BURNER START (1-8)

LIMITER TEST (1-8) Safety temperature limiter test

SERVICE (only with code no.)

RESET USER 00 Load user parameter factory

RESET EXPERT 00 (only with code no.)

RESET T-PRG 00 Load time program factory

RETURN

Starting different burner stages of the cascade

Ä Burner time for all stages Ä Burner start for all stages

with heat generator temperature display

Start with Ä (hold down)!

Input of date or operating hours for service messages

settings (except language)

Load expert parameter factory settings (except sensors)

settings Exit level using Ä

SW NO XXX-XX

Display software number with index (please specify if you experience problems / have questions about the controller)

CASC MANUAL (only with code no.)

(only for cascades and only in that operating mode “Service“ => see operating mode selection) With Ä open level and select burner stage using Ç.

After the heat generator Ä  has been selected the output for this heat generator can be set.

With respect to multi-stage heat generators, the second stage can be activated by means of presetting an output value > 50%.

After closing the service functions the entries are reset automatically .

BURNER TIME and BURNER START

Ä => Display of current value ÄReturn Hold down Ä until indicator "RESET" goes out => Reset display

LIMITER TEST

Use Ä to open level and select heat generator with Ç. => Display heat generator temperature. Ä Hold down prog. button until LIMITER activates Burner I ON all pumps OFF all mixers CLOSE The temperature can be observed in the display.

Part 2: Overview of display values and settings General area

SERVICE

Input of values for the yearly service message or operating hours. Delete active maintenance display

Open control panel cover, press prog. button ÄÄ, set repeat value to "00" using Ç and confirm with Ä.

Delete programmed annual message: In the General/Service level, set value for SERVICE=>DAY or SERVICE => OPERATNG HOURS to hyphens.

RESET …

The three value groups can be reset to the factory setting using the Reset function. Select function using Ä, set to "01" using Ç and confirm with Ä.

Display Range Part 2: Overview of display values and settings

Display Range

! Display only - no adjustment possible. Display only

appears if the sensor is connected and the value is present in the system, otherwise "----" or no display.

INSTALLATION

(HS => heat generator) use Ç to select parameters

T-OUTSIDE Outside temperature

EXT SETPOINT External set value specification (0-

10V)

T-HEADER DES HS / Header set value (cascade)

T-HEADER HS / Header temperature (cascade)

T-HS

T-SOLID FUEL For HS2 = Solid fuel boiler (A7)

T-RETURN 1 Return flow temperature of HS 1

T-RETURN 2 Return flow temperature of HS 2

T-BUFFER T Buffer storage tank temperature

T-BUFFER M Buffer storage tank temperature

T-BUFFER B Buffer storage tank solar zone

T-STORAGE 3 Temperature of storage tank 3 (e.g.

MOD DEPTH 1-8 Modulation degree of HS (BUS)

RETURN

Level Ä => Temperature and Status of the HS (HS 1 – HS 8)

removal

charging zone HS

solar pool-heating)

Exit level using Ä

T-OUTSIDE

The measured outside temperature is smoothed for control purposes. The smoothed value is displayed here.

EXT SETPOINT

The 0-10V input can be used to preset an accumulative set value for the control system (see V-CURVE p. 35).

T-HEADER DES (Heat requirement)

Corresponds to the maximum required temperature of the consumer circuits from the heating system (incl. hot water preparation). The mixer circuits request the temperature + heating curve distance (expert value)

T-HS 1 (and T-HS 2 – 8 where cascades apply)

Measured current temperature of the corresponding heat generator. Additionally it is indicated whether the heat generator is switched on ( H ), in the case of two-stage heat generators the status of the second stage is also displayed ( II H ).

BUFFER-T/M/B

(only if buffer storage is installed) Buffer storage tank temperatures in the discharge area, the charging area and the infeed of alternative energy.

MOD DEPTH (only in the case of HS via BUS connection)

Only if a modulating heat generator is connected via BUS and transmits this value.

Part 2: Overview of display values and settings Display Range

Hot water

T-DHW DES Current hot water set temperature

according to heating program and operating mode

T-DHW Current hot water temperature

T-DHW L Temperature of HW tank in the lower

section (infeed)

T-CIRCL Return flow temperature of the circulation

RETURN

Exit level using Ä

Heating circuit I / II

T-ROOM DES A Current room set temperature

according to heating program and operating mode

T-ROOM Current room temperature HUMIDITY ***)

T-POOL DES *) T-POOL *) Current swimming pool temperature T-DHW DES **) T-DHW **) T-FLOW DES Current flow temperature setting T-FLOW Current flow temperature N-OPTI-TIME Previous time required to heat up

RETURN

Display of room humidity (if value is available)

Swimming pool temperature setting

Hot water temperature setting

Current hot water temperature

with heat-up optimisation activated Exit level using Ä

! Display only appears if the sensor is connected and

the value is present in the system. If the set value is not present it is masked out, or hyphens appear in the display (- - - -).

T-DHW L (storage tank lower temperature)

For example for solar infeed or for active charge-through function (CHARGE-THROUGH = 01). Display hot-water tank temperature in infeed area.

T-ROOM DES A (current value for set room temperature)

If a control unit is connected there will be no display "- - - -" => display on control unit

T-ROOM (room temperature)

Only if a sensor or a FBR is connected.

*) These values only appear if the heating circuit is

programmed as a controller for the pool.

**)These values only appear if the heating circuit is

programmed as a hot water circuit.

***) These values only appear if an operating device is connected and parameters have been set for the corresponding heating circuit. “- - - -„ => no humidity sensor available in control device

Display Range Part 2: Overview of display values and settings

! This page only displays those parameters where the

corresponding functions have been implemented and activated.

Solar/MF

T-MF1 Temperature MF sensor 1 (=F11)

T-MF2 Temperature MF sensor 2 (=F12)

T-MF3 Temperature MF sensor 3 (=F13)

T-MF4 Temperature MF sensor 4 (=F14)

T-SOL PANEL 1 Temperature collector 1

T-DHW Upper hot water temperature

T-DHW L Hot water temperature infeed

RETURN

Exit level using Ä

Solar integration

See the description for multifunction 1-4 under Expert.

T-MF(1-4)

A sensor is assigned to the four available multifunction relays respectively. If the sensor is not used by another standard function, a function that requires the sensor may be selected for the relay. In this case the measured value is displayed here.

In some special cases, e.g. when selecting the functions "return flow temperature increase“ or "collector pump“ the measured value is additionally displayed as T-RETURN under installation or as T-SOL PANEL under Solar/MF

Part 2: Overview of display values and settings User Area

User Area

All the settings that can be made by the operator of the system.

INSTALLATION

All settings that cannot

be assigned to a consumer circuit

(consumer circuits: heating circuits and HW).

Ä Select value, Ç adjust and Ä save

Designation Value range Default IV*)

GERMAN Acc. to version GERMAN

CONTRAST (-20) – (20) 00

DISPLAY SEL Sensor, weekday, ... - - - -

SELECT PROG

RETURN

Heating circuit 01, Heating circuit 02

Exit level using Ä

*) IV = Internal Values:

Space for entering the parameters stored in the system!

*) only with remote control connected **) only if corresponding configuration applies

~ Hinged cover OPEN Î search for level to the right with Ç,

open with

GERMAN => Language

Select controller language

CONTRAST

Adjust intensity of display

DISPLAY SEL

Select additional display in standard operation

- - - - => no additional display

WEEKDAY => Day of week (Mo, Tu, We, ....)

T-OUTSIDE => Outside temperature T-FLOW D 1 => Flow temperature,

heating circuit 1 T-FLOW D 2 => Flow temperature,

heating circuit 2 T-DHW => Hot water temperature (upper) T-HS => Heat generator temp

T-ROOM D 1 => Room temperature, heating circuit 1=> *)

T-ROOM D 2 => Room temperature 2=> *) T-SOL PANEL 1 => Collector 1 temperature => **)

SELECT PROG

Select heating circuit whose heating program is shown in the standard display.

User Area Part 2: Overview of display values and settings

Hot water

Designation Value range Default IV

1X DHW 00, 01 (OFF/ON) 00 = OFF

T-DHW 1 DES 10°C - 70°C 60°C

T-DHW 2 DES 10°C - 70°C 60°C

T-DHW 3 DES 10°C - 70°C 60°C

BOB-VALUE 0K – 70K 0 K

CIRCL-P-DHW 00, 01 (OFF/ON) 00 = OFF

ANTILEGION 00, 01 (OFF/ON) 00 = OFF

RETURN

Exit level using Ä

Hot water short time heating function

T-DHW 1-3 DES (Hot water temperature setting)

Required hot water temperature setting T-DHW 1 DES => used in first enable time, T-DHW 2 DES => used in second enable time , T-DHW 3 DES => used in third enable time of hot water program.

Special application – flow heater

Without storage tank sensor connection, this function is available for external boilers with bus connection.

T-DHW 1 => in operation 24 hours

BOB-VALUE (Operation Without Burner)

Energy saving function for solar or solid fuel integration For settings > "0" the burner is not activated for hot water preparation until the hot water temperature has dropped

ANTILEGION = 01 => Every 20th time that heating takes place or once per week on Saturday at 01:00 hrs the

below the temperature setting by the set value + the switching hysteresis.

storage tank is heated up to 65°C.

! Alternative external energy sources with a bus

It is possible to set up your own hot water short time heating function using the third hot water enable facility.

1X DHW (1x Hot water)

01 => The storage tank is enabled for charging (e.g. for showering outside hot water times). Charging starts when the temperature falls below "temperature setting 1" by the switching hysteresis. After charging, the value is automatically set to "00“ .

connection may affect this function (e.g. SD3-Can).

CIRCL-P-DHW (Circulation with hot water)

01 => The circulation pump runs when the hot water is enabled, but the circulation program is disabled.

ANTILEGION (Hot water short time heating function)

01 => Activation of hot water short time heating function

Part 2: Overview of display values and settings User Area

Heating circuit I / II

Designation Value range Default IV

MODE

T-ROOM DES 1*)

T-ROOM DES 2*)

T-ROOM DES 3*)

T-REDUCED*)

T-ABSENCE 5°C - 40°C 15°C

T-LIMIT DAY ----, (-5)°C–40°C 19°C

T-LIMIT N ----, (-5)°C–40°C 10°C

HEATSLOPE 0.00 – 3.00 1,20

ADAPTION 00, 01 (OFF/ON) 00 = OFF

ROOM INFL 00 – 20 10

T-ROOM ADJ (-5.0)K – (5.0)K 0,0 K

OPT HEAT UP 00, 01, 02 00

MAX OPT-TIME 0:00 – 3:00 [h] 2:00 [h]

OPT REDUCED 0:00 – 2:00 [h] 0:00 [h]

PC-ENABLE 0000 - 9999 0000

RETURN

----,i,F1,F2,B,B

- - - -

5°C - 40°C 20°C

5°C - 40°C 10°C

Exit level using Ä

MODE

- - - - => The controller programming switch applies in this case. When setting an alternative operating mode this only applies to the assigned heating circuit.

When the "i = Standby/OFF", and "F = Summer mode" controller programming switch

operating modes are set, this has a reducing effect on all heating circuits and consumer circuits in the entire system.

T-ROOM DES 1-3

Required room temperature setting T-ROOM DES 1 => used in first enable time, T-ROOM DES 2 => used in second enable time, T-ROOM DES 3 => used in third enable time of active heating program for this heating circuit.

T-REDUCED

Required room temperature setting during night reduction

T-ABSENCE

Required room temperature setting during holidays

*) depending on function selector Heating circuit T-POOL, T-DHW, T-FLOW-DAY or T-FLOW REDUC (see page 48)

User Area Part 2: Overview of display values and settings

T-LIMIT DAY/T-LIMIT N (Day/Night)

Only valid if the function is activated => Set value "Expert/Heating circuit/PUMP MODE= 01=> Pump switching according to heating limit"

If the outside temperature that is measured and calculated by the controller exceeds the heating limit specified here, heating is disabled, the pumps switch off and the mixers are closed. The heating is enabled again when the outside temperature drops below the set heating limit by 1K (= 1°C).

T-LIMIT DAY => applies during heating times T-LIMIT N => applies during reduction times

"----" => The heating limit is deactivated. The circulation pump is switched in accordance with the standard function (see chapter entitled "Circulation pump control")

HEATSLOPE

The gradient of the heat slope indicates by how many degrees the flow temperature changes if the outside temperature rises or drops by 1 K.

Setting tip:

At cold outside temperatures, room temperature too low => Increase heat slope (and vice-versa)

At high outside temperature (e.g.16°C) room temperature too low => correction via set room temperature

Flow temperature [°C]

10 0

Outside temperature [°C]

20 16 12 8 4 0 -4 -8 -12 -16

2,5

1, 5

1, 2

0,8 0,6

0,4 0,2

Heat slope diagram (setting aid)

Setting 0 => Room control only

! The heat slope can best be set at outside

temperatures below 5°C. The change in heat slope setting must be made in small steps and at long intervals (min. 5 to 6 hours) because the system must first adjust to the new values each time the heat slope is changed.

Guideline values

• Underfloor heating S = 0.4 to 0.6

• Radiator heating S = 1.0 to 1.5

Part 2: Overview of display values and settings User Area

ADAPTION (Heat slope adaptation)

Only active if an FBR analogue room device is connected (room sensor + operating mode selection) and an outdoor sensor.

Function for automatic heal slope setting

Starting Conditions:

• External temperature < 8°C

• Operating mode is automatic (I or II)

• Duration of lowering phase at least 6 hours

At the beginning of the lowering period, the current room temperature is measured. During the next four hours, this temperature is used as the set point for the room regulator. The heating curve is calculated from the values determined during this time by the regulator for the flow pipe nominal temperature and the external temperature.

! If the adaptation is interrupted, e.g. by a start-up

discharge or the hot water demand from an external heating circuit, then the warning triangle will appear in the display until the function is carried out successfully the next day or is ended, e.g. by adjusting the operating mode switch.

ROOM INFL (Room sensor influence)

Only active if an FBR analogue room device is connected (room sensor + operating mode selection).

The boiler temperature is increased by the set value when the temperature drops below the required room temperature by 1K. => High values lead to fast control and large boiler temperature fluctuations.

- - - - => pure weather-dependent control 0 => pure weather-dependent control *) 20 => pure room temperature control

*) Special function with ROOM INFL = 0

For one-off heating requirements during the night reduction the heating pump continues to run until the next heating period is reached (see chapter entitled "Circulation pump control").

T-ROOM ADJ (room sensor adaptation)

In the case of room control (e.g. with FBR) the measurement can be corrected using this setting if the room sensor is not measuring correctly.

! During the adaptation, the water heating and the

heating optimisation of the regulator are blocked.

User Area Part 2: Overview of display values and settings

OPT HEAT UP (Heating optimisation)

Activation of function for automatically bringing forward the start of heating.

Example: Heating program 6.00 hrs – 22.30 hrs

OFF: Building starts to be heated at 6.00 hrs.

ON: Depending on weather and room temperature,

heating starts soon enough so that building just reaches the set room temperature at 6.00 hrs.

00 => start of heating not brought forward 01 => brought forward depending on weather 02 => brought forward depending on room temperature *)

*) Only active if an FBR analogue room device is connected (room sensor + operating mode selection).

The burner is not restarted before the end of the heating period during the set time period (last heating time only) if it not already in operation.

This function prevents short-term heating of the heat generator to the end of the heating period.

PC-ENABLE

Code number for enabling access to heating circuit data from a PC "0000" => access is blocked.

RETURN

Exit heating circuit level => Return to "User" area.

! Warm-up optimisation occurs only if the reduced

time of the heating circuit is at least 6 hours.

MAX OPT-TIME (Maximum bring-forward)

Only active with "OPT HEAT UP = 01 or 02" The start of heating is brought forward by no more than this time.

OPT REDUCED (Reduction optimisation)

Automatic reduction of burner disabling to end of set heating time.

Part 2: Overview of display values and settings Timer Program Area

Timer Program Ar ea

All the time programs can be set in this area.

List of available time programs

With maximum controller configuration

Select timer program using Ç Ä select timer program for display or adjustment

CIRCL TIME Prg for circulation pump

HOTW-PROG Prg for hot water charging pump HTG-PROG 1 D 1

1st heating program for first

~ Hinged cover OPEN Î search for level to the right with Ç,

open with

Selecting a timer program

Open hinged cover => "Display => System",

Ç to the right until clock => "USER => INSTALLATION",

controller heating circuit

HTG-PROG 2 D 1

HTG-PROG 1 D 2

HTG-PROG 2 D 2

RETURN

2nd heating program for first controller heating circuit

1st heating program for second controller heating circuit

2nd heating program for second controller heating circuit

Exit level using Ä

Ç to the right until clock => "TIME PROGRAM => CIRCL TIME"

Ç Select timer program => e.g. "HTG-PROG 2 D 1" = Heating program 2 for controller heating circuit 1

Confirm/open timer program

=> "MONDAY"

When connecting a digital room controller with heating program input, the corresponding heating program in this controller is automatically superceeded.

Timer Program Area Part 2: Overview of display values and settings

Timer/heating program adjustment

Ç Select weekday (Mo-Su) or block (MO-FR => Monday-Friday, SA-SU => Saturday-Sunday, MO-SU => Monday-Sunday)

Symbols:

I ON = First switch-on time (I OFF = first switch-off time)

20 °C = Set room temperature for displayed heating time

Clock = Approximate program display [full hours]

D 1 = Program for heating circuit 1

= Heating program 2, F1 = Heating program 1

DI = Start time 1, IB = Stop time 1, DII = Start time 2, IIB = Stop time 2, DIII = Start time 3, IIIB = Stop time 3

Ä Open weekday/block (see left) => "I ON 20°C" First switch-on time – set value I = 20°C

Ç Set first switch-on time => for example 6:00 hrs Ä Confirm first switch-on time

=> „I OFF 20°C" First switch-off time – set value I = 20°C

Ç Set first switch-off time => for example 8:00 hrs Ä Confirm first switch-off time

=> „II ON 20°C" Second switch-on time – set value II = 20°C

Ç Ä Switch-on and switch-off times 2 and 3 are entered in the same way - please enter all values!

Ç Select another weekday/block for entry or exit heating program 2 with "RETURN" and set another program.

! The heating times are not saved until all the times

for a weekday/block have been entered.

"- - - -" for a switch-on/switch-off time => The relevant

heating timer is deactivated.

Part 2: Overview of display values and settings Timer Program Area

Heat circuit 1

Heating program 1 => factory setting:

Mo. to Fr.: 06:00 to 22.00 Sa. and Su.: 07:00 to 23:00

 Heating time 1 Heating time 2 Heating time 3

Mo. Tu. We. Th. Fr. Sa. Su.

Heating program 2 => factory setting:

Mo. to Fr.: 06:00 to 08.00, 16:00 to 22:00 Sa. and So.: 07:00 to 23:00

 Heating time 1 Heating time 2 Heating time 3

Mo. Tu. We. Th. Fr. Sa. Su.

Heat circuit 2

Heating program 1 => factory setting:

Mo. to Fr.: 06:00 to 22.00 Sa. and Su.: 07:00 to 23:00

 Heating time 1 Heating time 2 Heating time 3

Mo. Tu. We. Th. Fr. Sa. Su.

Heating program 2 => factory setting:

Mo. to Fr.: 06:00 to 08.00, 16:00 to 22:00 Sa. and So.: 07:00 to 23:00

 Heating time 1 Heating time 2 Heating time 3

Mo. Tu. We. Th. Fr. Sa. Su.

Timer Program Area Part 2: Overview of display values and settings

Hot water

Factory setting: Mo. to Fr.: 05:00 to 21.00 Sa. and So.: 06:00 to 22:00

 Heating time 1 Heating time 2 Heating time 3

Mo. Tu. We. Th. Fr. Sa. Su.

Circulation

Factory setting: Mo. to Fr.: 05:00 to 21.00 Sa. and So.: 06:00 to 22:00

 Heating time 1 Heating time 2 Heating time 3

Mo. Tu. We. Th. Fr. Sa. Su.

Part 2: Overview of display values and settings Expert area

Expert area

These settings can only be changed if the code no. is entered (see page 16).

CODE-NO

Entering the code number (see page 16) allows all of the expert settings to be modified => including the code

E If these values are set incorrectly, they may cause

malfunctions or damage to the system.

INSTALLATION

Designation Value range Default IV

CODE-NO 0000 - 9999 Entry

->CODE-NO Adjustment 0000

BUS-ID HS ----, 01 - 08 ----

BUS ID 1 (00), 01-15 01

BUS ID 2 (00), 01-15 02

AF SUPPLY 00.01 (Off/On) 01 = ON

BUS TERMIN 00, 01 01

EBUS SUPPLY 00.01 (Off/On) 01 = ON

TIME MASTER 00, 01 (OFF/ON) 00 = OFF

MAX T-HS1 or

30°C - 110°C 85°C

MAX T-HEADER

MIN T-HS1 or

10°C - 80°C 40°C

MIN T-HEADER

MAX T-HS2 30°C - 110°C 85°C

MIN T-HS2 10°C - 80°C 40°C

See following pages for continuation

number itself (first parameter) (Ç on right => CODE-NO 0000 Ä

2nd digit Ä

=> Ç 3rd digit Ä=> Ç 4th digit Ä=>Ç)

=>Ç 1st digit Ä=>Ç

BUS-ID HS (- - - -)

(not an option in all models)

The controller will be used as cascade with setting "01-08". The heating circuits are then not available anymore.

BUS ID 1 / 2 (Heat circuit number)

The heating circuits are sequentially numbered starting with "01". heating circuit numbers must not be assigned twice. For replacement controllers however, please enter exactly the same heating circuit numbers as the replaced controller.

AF SUPPLY (Outdoor sensor power supply)

Switching off the power supply to the outdoor sensor. Switching off allows up to 5 controllers to be operated with a single outdoor sensor. The power supply must only be switched on if there is one controller per sensor = "01".

BUS TERMIN (Bus terminating resistor)

The bus terminating resistor must be available once in the bus system (HS controller or cascade controller). When installing with a CoCo, set 1 to „00“.

Expert area Part 2: Overview of display values and settings

00 = OFF => The resistor is not set 01 = ON => The resistor is set

EBUS SUPPLY (supply for eBUS)

Switching the eBUS supply on / off in relation to connected devices (power supply balance) => see part 3: Description of functions – eBUS burner controls.

TIME MASTER

(Only without or TIME MASTER in system) 00 no time master => each heating circuit has its own time

01 controller is time master => all controllers and remote controls take over the time settings of this controller.

MIN T-HS1/2 (min temperature HS)

Decreased condensation build-up in HS with low heat requirements. Switching the HS off is always done earlier when achieving the HS minimum temperature MIN T-HS + HYSTERESIS (Standard 5K)

(see MIN DELIMI as well).

MAX/MIN T-HEADER (only for cascades)

See MAX/MIN T HS1/2.

! No more than 1 TIME MASTER is permitted in the

system!

MAX T-HS1/2 (Max. temperature HS)

Protects the HS from overheating / prevents triggering the LIMITER.

! Caution: Also works with hot water preparation.

Part 2: Overview of display values and settings Expert area

Installation

0-10 V Function

If the controller assigns the HS with the set temperature

Designation Value range Default IV

V-CURVE 00 - 11 00

CURVE 11-U1 0,00V – 10,00V 4,00V

CURVE 11-U2 0,00V – 10,00V 0,10V

CURVE 11-T1 00°C - 120°C 20°C

CURVE 11-T2 00°C - 120°C 90°C

CURVE 11-UO 0,00V – 10,00V 5,00V

See following pages for continuation

Table of voltage curves that can be chosen

through a voltage input, the 0-10V output on the controller can be adjusted using the following parameters on the voltage input of the HS.

If the 0-10V input of the controller is used for a temperature requirement, the evaluation of the current signal is defined using the same parameters.

V-CURVE (only for 0-10V input/output)

One of the defined voltage curves or free-definition curve 11 can be selected here for configuring the voltage input and the voltage output.

CURVE 11-xx

No. U1 U2 T1 T2 UA

0 2,0 10,0 0 90 2,0

Using parameters U1, U2, T1, T2 and UO, a special voltage curve can be defined.

1 2.5 0.3 38 80 5,0 2 2.5 0.3 38 75 5,0 3 2.5 0.3 38 45 5,0 4 4.0 0.1 20 85 5,0 5 4.0 0.1 20 75 5,0 6 4.0 0.1 20 55 5,0 7 4.0 0.1 30 87 5,0 8 4.0 0.1 38 87 5,0

U = Voltage, T = Temperature, UO = HS OFF U1, T1 => Point 1 on the voltage curve U2, T2 => Point 2 on the voltage curve The line between these limit points defines the voltage curve. UO => Starting with this voltage, HS = OFF (Must lie outside of the valid voltage values)

9 4.0 0.1 38 73 5,0 10 4.0 0.1 38 53 5,0 11 4.0 0.1 20 90 5,0

Expert area Part 2: Overview of display values and settings

Installation

Designation Value range Default IV

T-WARM UP 10°C - 85°C 35°C

MIN-DELIMI 00, 01, 02 00

HYSTERESIS 2K – 20K 5 K

HYST TIME 00 min – 30

00 min

min

See following pages for continuation

T-WARM UP (Warm-up relief)

(Not in cascade operation)

Reduces operation in condensation zone. The circulation pumps are switched off and the mixers are shut until the boiler has reached the start-up temperature.

MIN DELIMI (minimum delimiter HS)

(Not in cascade operation)

Decreased condensation build-up in HS with low heat requirements. Switching the HS off is always done earlier when achieving the HS minimum temperature MIN T-HS + HYSTERESIS (Standard 5K)

00 = Minimum delimiter for heat CURVE

The HS switches on if the requested temperature has been exceeded by the using components.

01 = Minimum delimiter with heat requirement

The HS holds at least the set minimum temperature MIN T-HS. at heating requirements

(Pump release).

02 = Permanent minimum delimiter (24) The HS holds 24h

at least the set minimum temperature MIN T-HS. at heating requirements (Pump release).

HYSTERESIS (Dyn. switching hysteresis stage 1)

with HYST TIME (Hysteresis time)

Function for optimising boiler operation with differing boiler loads.

The effective

switching hysteresis is reduced linearly after the burner is switched on from the set HYSTERESIS to the minimum hysteresis (=5K) during the hysteresis time "HYST TIME".

Low heat consumption

In this case the higher HYSTERESIS setting takes effect. Short run-times and frequent burner operation are prevented.

High heat consumption

During longer periods of burner operation (high heating load) the hysteresis is automatically reduced to 5K. This prevents the boiler from heating to unnecessary high temperatures.

Part 2: Overview of display values and settings Expert area

Installation (only for cascades via BUS)

Designation Value range Default IV

DETECTED HSS Display only CAP/STAGE 00 – 9950 kW 00 kW NEW CONFIG 00.01 (Off/On) MIN MOD CASC 00 - 100 00 HW-BOILER 00 - 08 00 CONTROL DEV [K] Display DES OUTPUT 0-100 [%] Display SWITCH VALUE (-99) - 0 – (99) Display BLOCK TIME Remaining

Display

[min] MAX T-HS 50°C – 110°C 90°C DYN UPWARD 20 - 500 K 100 K DYN DOWNWARD 20 - 500 K 100 K RESET TIME 5 - 500 50 MODULAT MAX 0% - 100% 80 % MODULAT MIN 0% - 100% 30 % MIN MOD HS 0% - 100% 0 % MODULAT DHW 40% - 100% 80 % SEQUENCE 1 SEQUENCE 2 -

1 2 3 4 5 6 7 8

8 7 6 5 4 3 2 1

SEQU CHANGE 01 - 06 01 See following pages for continuation

DETECTED HSS (number of heat generators)

Display of heat generators automatically reported via BUS with bus id (boiler no.)

CAP/STAGE (boiler output for each stage)

Display of the HS number and the stage => Selection with Prog button => Input/Adjustment of HS output

- - - - = Stage/ Boiler not available 0 = Stage/ Boiler not active

In the case of boilers of the same power, a boiler release is sufficient; e.g.:

HS 1 01 => 01 HS 1 02 => 01 HS 2 01 => 01 etc. (depending on the number of boilers)

Automatic assignment:

After restarting or after a new configuration, the controller searches the bus systems for a heat generator. Within this time period (approx. 2 min) no manual output entries are allowed [Display „SCAN“]. In the case that a heat generator answers with output information, this output is automatically entered into the list. In the case that a heat generator answers without output information, 15kW is entered into the list. This value can then be adjusted manually.

Expert area Part 2: Overview of display values and settings

If a boiler, which had been configured previously, is no longer found after a restart, or after updating the parameter CONFIG NEW, an error message is put out. Pressing CONFIG OK after entering the performance data, the boiler is deleted from the configuration and the error message is deleted.

NEW CONFIG (new BUS configuration)

If the BUS configuration was modified (e.g. additional heat generators connected), the automatic search for heat generators on the BUS may be activated here.

MIN MOD CASC (min. modulation cascade)

Every time the cascade controller calculates a total degree of modulation greater than null and less than MIN MOD CASC, the total degree of modulation is set to the value MIN MOD CASC. Simultaneously, the clock inhibition is set to 10 seconds.

HW-BOILER (number of stages for HW operation)

00 = HW preparation via header

01 - 08 = Number of heat generators in the cascade which are coupled out of the cascade hydraulically for hot water preparation.

CONTROL DEV (header control variance)

Display of the header control variance (set temperature – actual temperature).

DES OUTPUT (required system output [in %])

Display of currently required total output % (0-100)

=> Calculated set value from control system = System load in per cent. The value is calculated, floating, and does not take any skips caused by the switching operation into account.

SWITCH VALUE (-99 – +99)

Internal control value => only for switching cascade!

If this value reaches "0", the next heat generator is also connected (only after the delay time has elapsed). If the switching value reaches "-0", the last heat generator is switched off. If the desired temperature is exceeded by 1K the boiler is also switched off.

BLOCK TIME (currently remaining value)

Display of current delay time. Only if "delay = 0“ is it possible to operate the next heat generator.

! It is essential that the HW-BOILER are at the

beginning of the BUS ID sequence => 01 - xx.

Part 2: Overview of display values and settings Expert area

MAX HS-T (maximum temperature of the heat generator)

Protects individual heat generators in the cascade from overheating / prevents triggering LIMITER (limiter value).

This parameter is used to set a temperature at which the different boilers switch themselves off, or - in the case of modulating heat generators - modulate themselves down. The boilers are switched on again if they drop below this temperature by 5K

! The temperature selected for MAX T-HS must be

higher than the maximum header temperature.

DYN UPWARD (dyn. heat generator connection [K])

Small value = fast connection Large value = slow connection

E Values set too low can lead to overheating or short-

term connection of a heat generator.

Calculation: If the cumulative system deviation in Kelvin reaches the set value A, this results in connection of all heat generator stages.

DYN DOWNWARD (dynamic heat generator deactivation [K])

Small value = fast deactivation Large value = slow deactivation

E Values set to high can lead to overheating and

triggering the STB

Calculation: If the cumulative system deviation in Kelvin reaches the set value A, this results in deactivation of all heat generators.

RESET TIME (resetting time for I-Controller)

E Control value: Changing this value can cause the

control system to overshoot. The recommended default settings should be retained.

! Small values cause the mixer motor to adjust quickly

and can lead to oscillation.

MODULAT MAX

If this modulation degree is exceeded the next heat generator in sequence is connected after the delay time elapses.

MODULAT MIN

If values drop below this modulation degree the last heat generator of the current sequence is switched off.

MIN MOD HS

Connection of the next heat generator will only occur, if the resulting modulation degree for the different heat generators then exceeds the value set here. => For optimum operation with maximum number of burners: MODULAT MAX = 0 and MIN MIN MOD HS set to minimum modulation degree for heat exchanger stages.

Expert area Part 2: Overview of display values and settings

MODULAT DHW (only for HW-boiler)

Entry of the set modulation degree for the heat generators in hot water operation (see HW-boiler).

SEQUENCE 1 (boiler sequence 1)

Entry of the sequence in which the boilers are set into operation in sequence 1. => Selection of start no. => Prog. button => Entry of the boiler number

SEQUENCE 2 (boiler sequence 2)

Entry of the sequence in which the boilers are set into operation in sequence 2. => Selection of start no. => Prog. button => Entry of the boiler number

! With respect to two-stage heat generators, the

second stage is always switched after the first stage.

SEQU CHANGE (sequence change mode)

01 = Only boiler sequence 1 02 = Only boiler sequence 2 03 = Change between sequence 1 and 2 according to operating hours of the first heat generator of the active sequence 04 = 1/3 <-> 2/3 Switching for boilers with a different nominal power: When the second boiler is activated, the first is put out of operation until activated again. 05 = Rotating boiler sequence; the first boiler of the sequence is placed in last position of the current sequence after the sequence switching time has elapsed. 06 = New boiler sequence by means of automatic sorting according to operating hours in the event of sequence change (sequence change according to operating hours of the first heat generator of the active sequence).

Part 2: Overview of display values and settings Expert area

Installation (only for cascades or two-stage operation)

Designation Value range Default IV

SEQ SW TIME 10 - 800 hours 200 hours

BLOCK-TIME 00 min – 30 min 00 min

HYST BURNER2 2K – 20K 2 K

Cooling function

HS COOL-FCT 00-01 00

T-HS COOL 30°C - 120°C 95°C

See following pages for continuation

SEQ SW TIME(time to sequence change)

For operation with at least 2 heat generators there is the option to swap the boiler sequence after the operating hours specified here of the first heat generator of the active sequence.

BLOCK-TIME (delay time for next stage)

Min. delay time after switching on or with switching HS, also when switching a layer off until switching the next layer on.

HYST BURNER2 (for solid fuel / 2. burner)

(only for 2-stage burners or solid fuel integration) Solid fuel integration: Hysteresis for the charging pump 2nd Burner 2 and burner stage 2: see next page => Switching pattern for 2-stage burners

HS COOL-FCT (cooling function for boiler)

with T-HS COOL (starting temperature for cooling)

! Applies to all boilers connected to the controller!

If the cooling function for the boiler is activated (HSCOOLFCT = 01), then the heating circuits commence operation with T-FLOW MAX as soon as the set starting temperature T-HS COOL is exceeded by one of the boilers. the cooling function terminates when the temperature drops below the starting temperature T-HS COOL by 5K.

! 00 = 10 sec.; Please consider the internal block-

times of the connected burner controllers to make the correct settings.

Expert area Part 2: Overview of display values and settings

Switching pattern for 2-stage burners

! This switching patterns is also effective for operating

two switching heat generators via the burner relays A6 and A7.

Switch on the 1st Burner stage when temperature drops below set temperature of the heat generator.

Switch off the 1st burner stage setting is exceeded by the HYSTERESIS.

Switch on the 2nd burner stage

- after start of 1st Burner stage and

- undercutting the set temperature by 5K (= Start the BLOCK-TIME)

- and progress of the BLOCK-TIME (= Release 2nd burner stage)

Switch off 2nd burner stage is exceeded by the HYSTERESIS.

Switch 2nd Burner stage set temperature of the heat generator.

Switch off the 1st burner stage after set temperatures are exceeded by [HYSTERESIS + HYST BURNER2]

when the temperature

when the temperature setting

when temperature drops below

when 2nd stage enabled

57°C 55°C

50°C

45°C

A Boiler temperature B Time C Boiler temperature setting D BLOCK-TIME (blocking time 2. burner stage) E HYSTERESIS (dynamic switching hysteresis) F HYST BURNER2 (Hysteresis for shut-off)

a Stage 1 on b Start of blocking time 2. Burner stage c Stage 2 on (stage 2 enable) d Stage 2 off e Stage 1 off (cancel stage 2 enable)

Part 2: Overview of display values and settings Expert area

Installation (configuring the installation)

Designation Value range Default IV

HS 1 TYPE 00 – 06 03

HS1 BUS 00 – 05 00

HS 2 TYPE 00 – 05 00

STORAGE HS2 00 - 03 00

BUFFER 00, 01, 02 00

See following pages for continuation

HS 1 TYPE (primary heat generator type)

00 = No primary heat generator 01 = Single stage HS switching 02 = Single stage modulating 03 = 2-stage HS switching (second stage via A7) 04 = Two individual HS switching (second HS via A7) 05 = Multi-stage switching (cascade via BUS) 06 = Multi-stage modulating (cascade via BUS)

HS1 BUS (connection for HS)

00 = Relay => Standard (switching HS) 01 = CAN-BUS => Standard (cascade switching) 02 = eBUS => HS without temperature controller => Preset modulation depth => Standard (cascade modulating) 03 = eBUS => HS with temperature controller => Preset desired temperature [ not suitable for cascade ]

04 = 0-10V Preset Boiler set temperature only for HS 1 TYPE = 01, 02 or 03 Burner relays are controlled in parallel Cooler KF [F8] must be connected 05 = 0-10V Preset Modulation degree only for HS 1 TYPE = 02

HS 2 TYPE (secondary heat generator type HS => A7)

(For HS1 with 2-stage burner – not active)

00 = No secondary heat generator 01 = Solid fuel boiler => function see “STORAGE HS2” 02 = (no function in V1) 03 = (no function in V1) 04 = Collector pump 05 = Pump for HS1 (e.g. additional HS for cascades)

STORAGE HS2 (heat accumulator for HS2)

(Only where HS 2 TYPE = Solid fuel)

Warm-up relief applies superordinated: ON: T-HS2 > MIN T-HS2 OFF: T-HS2 < [MIN T-HS2 – 5K] T-HS2 = Solid fuel burner temperature

00 = Heating vis-à-vis collector (no storage tank) => F8 ON: T-HS2 > [F8 + HYST BURNER2 + 5K] OFF: T-HS2 < [F8 + HYST BURNER2]

Expert area Part 2: Overview of display values and settings

01 = Heating vis-à-vis buffer storage tank => F1, F3 ON: HS2-T > [F3 + HYST BURNER2 + 5K] OFF: HS2-T < [F1 + HYST BURNER2]

02 = Heating vis-à-vis HW tank => F6 ON: HS2-T > [F6 + HYST BURNER2 + 5K] OFF: HS2-T < [F6 + HYST BURNER2]

03 = Heating vis-à-vis STORAGE III (pool) => F15 ON: HS2-T > [F15 + HYST BURNER2 + 5K] OFF: HS2-T < [F15 + HYST BURNER2]

Switching pattern

Switching the pump on is done if the temperature of the solid fuel boiler exceeds the temperature of the Reference sensor by the hysteresis (HYST BURNER2 + 5K). Switching off occurs when the temperature drops 5K below the switch-on temperature.

Start-up relief

Switching off occurs when the temperature of the solid fuel boiler drops below the set limit temperature (MIN T-HS2) by 5K. The pump is enabled again when the temperature of the solid fuel boiler exceeds the set limit temperature (MIN T-HS2).

Blocking HS1

ON: T-HS2 > HS set temperature + 5K and

pump HS2 = ON

OFF: T-HS2 <= HS set temperature or

pump WE2 = OFF

No HS1 blocking for

HS1 type = "Multi-stage switching“ HS1 type = "Multi-stage modulating“

STORAGE HS2 = "Heating against HW storage ( F6 )“ STORAGE HS2 = "Heating against STORAGE III ( F15 )“

! If activated, the cooling function will also affect the

solid-fuel boiler function.

BUFFER (heater buffer storage type)

! After activation (>0) it is not possible to connect a

FBR for heating circuit 1.

00 = no buffer storage for heating operation

01 = Buffer storage for heating operation (F1-F3)

(Sensor switching- in V1 no other function)

02 = Combination storage tank for heating and HW operation

(Sensor switching- in V1 no other function)

Part 2: Overview of display values and settings Expert area

Installation

Designation Value range Default

SCREED 00, 01 (OFF/ON) 00 = OFF

SCREED PROGR See explanation!

RETURN

Exit level using Ä

! Start day is not included:

The screed program starts with the "Day 1" temperature setting and switches to "Day 1" at

00.00 hrs and then to the next day at 00.00 hrs and so on. The current day is marked with an "x" in the "SCREED PROGR" program.

! After the function has been cancelled/terminated the

controller continues heating using the set operating mode. If no heating is required, set the operating mode to i = Standby / OFF.

Screed program SCREED (activation of screed drying process)

The screed program can be used for function heating in accordance and for heating freshly laid screed ready for flooring.

! Screed drying can only be carried out for mixer

circuits.

After starting, the program runs through the set flow temperatures. The integrated mixer circuits control to the set flow temperature. The boiler provides this temperature irrespective of the operating mode that has been selected. This is marked in the standard display by the entry "SCREED" and a display of the current flow temperature.

The freely adjustable program runs for a maximum of 28 days. The flow temperatures can be set to a value of between 10°C and 60°C for each day. The entry "----" stops the program (also during operation for the following day).

DAY 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 VT 25 25 25 55 55 55 55 25 40 55 55 55 55 55 55 55 55 55 55 40 25 --- --- --- --- --- --- --=>

SCREED PROGR (Program setting)

Ä => Screed program; Ç Select day; Ä => Activate adjustment date; Ç Set flow temperature; Ä => Save setting; Ç Select next day or exit screed program using "RETURN" + Ä.

Expert area Part 2: Overview of display values and settings

Hot water

Designation Value range Default IV

DHW RELIEF 00, 01

(OFF/ON)

PARALLEL DHW 00, 01, 02, 03 01

T-HS DHW 00K – 50K 20K

HYST DHW 5K – 30K 5 K

DHW FOLLOWUP 00 min – 30

min

THERM INPUT 00, 01

(OFF/ON)

WALL HUNG 00, 01

(OFF/ON)

LOAD THROUGH 00, 01

(OFF/ON)

RETURN

Exit level using Ä

DHW RELIEF (Charge pump blocking)

The charging pump is not switched until the boiler temperature exceeds the storage tank temperature by 5K. It is switched off when the boiler temperature drops below the storage tank temperature. This prevents the storage tank from being cooled by the boiler when hot water preparation starts.

01 = ON

00 min

00 = OFF

PARALLEL DHW (Pump parallel running)

00 => Hot water priority operation: The heating circuits are blocked during hot water preparation. The mixers close and the heating circuit pumps switch off.

01 => HW partial priority

: The heating circuits are blocked during hot water preparation. The mixers close and the heating circuit pumps switch off. The mixer

circuits are enabled again when the boiler has reached the temperature of hot water temperature setting + boiler superheating [T-DHW + T-HS DHW]. If the boiler temperature drops below the enable temperature by the switching hysteresis [HYST DHW] again, the mixer circuits are blocked again.

02 => Pump parallel running

: Only the direct heating circuits are blocked during hot water preparation. The mixer circuits continue to be heated. The hot water preparation is extended by this function.

03 => Pump parallel running also for the direct heating circuit: During hot water preparation all heater circuits continue to be heated. The hot water preparation is extended by this function. When the boiler temperature exceeds the maximum flow temperature of the direct heating circuit by 8K, the heating circuit pump for this circuit is switched off (overheating protection). The heating circuit pump is switched on again when the boiler temperature drops below the temperature [maximum flow temperature + 5K].

Part 2: Overview of display values and settings Expert area

T-HS DHW (increase during HW operation)

Boiler temperature setting with hot water preparation = hot water temperature setting + T-HS DHW

! The boiler must be run at a higher temperature

during hot water preparation so that the hot water temperature in the storage tank can be reached via the heat exchanger.

HYST DHW (hot water hysteresis)

Hot water preparation is started when the temperature of the hot water storage tank drops below the temperature setting by the hysteresis [HYST DHW]. The hot water preparation stops when the storage tank reaches the temperature setting (the temperature setting is set to 65°C during hot water short time heating operation).

DHW FOLLOWUP (pump run-down time)

00 min => Standard function: The charging pump continues to run for 5 minutes after the burner has switched off. If heat is requested by a heating circuit the run-down is cancelled. The charge pump blocking kicks in and can also cause the run-down function to be cancelled.

greater than 00 min set time when storage tank charging is complete. The after-run can only be cancelled by the activated charge pump blocking.

=> The charge pump runs down by the

THERM INPUT (storage tank with thermostat)

00 => Hot water preparation via storage tank sensor

=> Hot water preparation via thermostat: The hot water preparation is started by a short circuit at the storage tank sensor connecting terminals. It stops when the short circuit is removed.

WALL HUNG (for modulating HS)

Boiler temperature setting with hot water preparation = hot water actual

With this function the exhaust gas losses occurring during hot water preparation can be reduced with modulating heat generator using the adapted boiler temperature setting.

LOAD THROUGH (only with F12 = T-DHW-LOWER)

The charge through function can be activated by connecting a hot water storage tank, lower, sensor.

T-DHW = Temperature of hot water tank in removal area (plug I, pin 6+7)

Storage tank charging: ON: T-DHW < T-DHW DES - HYST DHW OFF: T-DHW L > T-DHW DES

The charging process of the storage tank only terminates when the lower storage tank set temperature has been reached.

temperature + T-HS DHW

Expert area Part 2: Overview of display values and settings

The parameters in this level change in accordance with the heating circuit function that has been selected [HC FUNCTION]

Heating circuit I / II

Designation Value range Default IV

HC FUNCTION 00 - 04 00

PUMP MODE 00 - 03 00

MIXER OPEN (not for

5-25 18

HW circuit)

MIXER CLOSE (not

5-25 12

for HW circuit)

See following pages for continuation

HC FUNCTION (heating circuit function selection)

If this parameter is modified the controller is restarted. "RESET" briefly appears in the display.

02 => Swimming pool control (only for heating circuit II) This function can be used to heat a swimming pool. The mixer controls the flow temperature for the swimming pool heat exchanger. The swimming pool water temperature sensor is connected to the room sensor connection for the heating circuit (see FBR). [Plug III; 1+2] The flow temperature control operates like normal room control [ROOM INFL]. The set value for the water temperature can be entered in the user area of the associated heating circuit level [T-POOL 1/2/3]. The heating program operates. No heating takes place during the reduction period (frost protection only). The water temperature and the current set value are displayed in the display level [T-POOL/T-POOL DES].

03 => Hot water circuit This function can be used to operate additional hot water circuits. The heating circuit flow sensor is located in the hot

00 => Standard heating circuit

01 => Control to fixed flow temperatures During the heating periods (see heating program ) the heating circuit is operated with a fixed preset flow temperature [T-FLOW-DAY], and during reduced mode operation with a fixed preset flow temperature [T-FLOW REDUC] accordingly.

water storage tank. The hot water temperature set value can be entered in the user area of the associated heating circuit level [T-DHW 1/2/3]. The heating program for the heating circuit acts as an enable program for the storage tank. The storage tank set value is set to 10°C during the reduction period. The boiler controller hot water priority function can be used (partial priority acts like priority).

Part 2: Overview of display values and settings Expert area

04 => Return flow temperature increase via mixer motor The heating circuit flow sensor is used as a boiler return flow sensor. The mixer motor controls to the heating circuit set value for 24 hours [MIN T-FLOW]. Installation tip: Mixer motor OPEN => boiler flow is fed into the return (=> return flow temperature increase) Mixer motor CLOSED => heating circuit return is passed through. When the mixer motor is open it must be ensured that there is circulation through the boiler (boiler pump).

PUMP MODE (pump operating mode)

The circulation pumps are switched off if heating is not required. The mixer motors are closed at the same time => "The heating circuit is switched off".

(Switch on with 1K hysteresis) This adjustment concerns the weather dependent shut-

down. If room temperature regulation is enabled (ROOM INFL > 0) the "thermostat function" takes effect in addition.

• Room temperature > room set value + 1K 00 => Standard circulation pump control Heating time:

• Outside temperature > room set value + 1K Reduction period: ROOM INFL = 0

• The switch-off occurs during the transition to reduction operation.

• Switch on with: Room temperature < room set value The pump runs continuously after switching on.

ROOM INFL ="--":

• Flow temperature setting < 20°C. 01 => Pump switching in accordance with heating limits Heating time:

• Outside temperature < daytime heating limit setting + 1K

Reduction period:

• Outside temperature < night-time heating limit setting + 1K

02 => Pump switching in accordance with heating program Heating time:

• Pump is ON; Heat circuit is enabled

Reduction period:

• Pump is OFF; Heat circuit is blocked

03 => Continuous operation The runs continuously for 24 hrs.! The heating circuit is permanently enabled.

MIXER OPEN (open mixer dynamic)

Speed setting at which the mixer motor opens when a control difference occurs. The control difference at which the mixer motor opens without interruption is entered in Kelvin.

! Small values cause the mixer motor to adjust quickly

and can lead to oscillation.

Expert area Part 2: Overview of display values and settings

MIXER CLOSE (close mixer dynamic)

Speed setting at which the mixer motor closes when a control difference occurs. The control difference at which the mixer motor closes without interruption is entered in Kelvin.

! Small values cause the mixer motor to adjust quickly

and can lead to oscillation.

Heat circuit I/II

Designation Value range Default IV

MAX T-FLOW 20°C - 110°C 80°C

MIN T-FLOW 10°C - 110°C 10°C

T-FROST PROT ----;

(-15)°C – (5)°C

T-OUT DELAY 0:00 – 24:00 0:00

SLOPE OFFSET 0K – 50K 5 K

B-HEAT SINK 00, 01

(OFF/ON)

RETURN

MAX T-FLOW (max. flow temperature)

The measured temperature setting for the heating circuit flow is limited to the maximum flow temperature setting (overheating protection).

Exit level using Ä

0°C

01 = ON

E The pump of the direct

off until the boiler temperature exceeds the set maximum flow temperature by 8K. The heating circuit pump has already been switched on again when the boiler temperature drops below the temperature [maximum flow temperature + 5K].

MIN T-FLOW (min. flow temperature)

The measured temperature setting of the heating circuit flow is increased to the minimum flow temperature setting (e.g. with air heating).

T-FROST PROT (frost protection temperature)

If the outside temperature drops below the programmed value, the system switches to frost protection mode (pumps are switched on). "----" Frost protection mode is deactivated!

T-OUT DELAY (outside temperature delay)

The selected outside temperature delay must be matched to the type of construction of the building. In the case of heavy structures (thick walls), a long delay must be selected since a change in outside temperature affects the room temperature later accordingly. With light structures (walls have no storage effect) the delay should be set (0 hrs.).

heating circuit is not switched

Part 2: Overview of display values and settings Expert area

SLOPE OFFSET (heating slope distance)

The boiler temperature that is required for a mixer circuit is calculated by adding the calculated temperature setting for the heating circuit flow to the heating curve distance. The heating curve distance compensates for sensor tolerances and heat loss up to the mixer.

B-HEAT SINK (circuit enable)

00 => OFF

01 => The heating circuit can be used by higher-order functions (e.g. cooling function of a heat generator to protect from overheating; heat removal during service mode) as a heat sink/consumer. The heating circuit is heated at the maximum flow temperature setting for the duration of the function.

Expert area Part 2: Overview of display values and settings

Solar/MF

FUNC RELAY 1 (function selection relay MF1)

Designation Value range Default IV

FUNC RELAY (1-4) 00 - 26 00,00,01,02

T-MF(1-4) SETP 30°C - 90°C 30°C

MF(1-4) HYST 2K – 10K 5 K

F15 FUNCTION 00 - 03 00

RETURN

Auxiliary relay functions

Exit level using Ä

The multifunction relays = MF relay is assigned one basic function respectively

MF-1: Mixer HC1 OPEN (FUNC RELAY 1 = 00) MF-2: Mixer HC1 CLOSED (FUNC RELAY 2= 00) MF-3: Header pump (FUNC RELAY 3 = 01) MF-4: Circulation (time) (FUNC RELAY 4 = 02)

If this basic function of a MF relay is not required (configuration of the installation in Installation level), any one of the functions described below may be selected for any unused relay.

The MF-relay sensor

1-4 (A8-A11) is always assigned with a

1-4 (F11-F14) (applies for functions starting from „20“ only). If a further sensor is required for a function, this sensor must be connected as F17 (connector III, Pin 2+3). The functions that may be selected for the MF relays

1-4

are described using MF relay 1 as an example.

T-MF1 SETP (switching temperature relay MF1)

MF 1 HYST (hysteresis relay MF1)

00 = No MF function

01 = Header pump

ON: When heat is requested by a consumer OFF: Without consumer heat request If at least one consumer in the system requests heat the pump is switched on. The after-run function runs after the burner has been switched on.

02 = Circulation (time)

Switching the relay according to the time program for the circulation pump

03 = Booster pump

ON: When heat is requested by an internal consumer OFF: When no heat is requested by an internal consumer. Follow-up pump action occurs.

05 = Pump HS1

The relay may be used to control boiler pump for heat generator 1. (Relay switches with burner relay 1; run-down =5 min)

Part 2: Overview of display values and settings Expert area

06 = Pump HS2

When using the controller to control two heat generators the relay may be used to control the pump for HS 2. (Relay switches with burner relay 2; run-down =5 min)

20 = Temperature-controlled circulation pump

T-CIRCL = Return flow temperature of circulation line ON: T-CIRCL < T-MF1 SETP OFF: T-CIRCL > [T-MF1 SETP + MF 1 HYST]

The circulation pump is switched on when the return flow temperature drops below the temperature setting limit (T-MF1 SETP). The pump is switched off again when the return flow temperature exceeds the set limit temperature by the Hysteresis (MF 1 HYST). The set circulation program and the "Circulation with hot water" setting have an overriding function => Switching on only takes place during enable periods.

21 = Pulsed circulation pump

ON: With short circuit at assigned sensor input OFF: After 5 minutes If a short-cut occurs at the multifunction sensor input the circulation pump is switched on for 5 minutes. Switching on takes place on the edge (once only). The set circulation program and the "Circulation with hot water" setting have an overriding function => Switching on only takes place during enable periods.

22 = Solid fuel boiler integration

(e.g. in connection with 2-stage HS) T-MF1 or 1-4 = Temperature of the solid fuel boiler T-BUFFER B = Temperature of buffer storage in the infeed area [F1] ON: T-MF1 > [T-BUFFER B (F1) +MF 1 HYST + 5K] OFF: T-MF1 < [T-BUFFER B (F1) + MF 1 HYST]

Start-up relief: ON: T-MF1 > T-MF1 SETP OFF: T-MF1 < [T-MF1 SETP – 5K]

The pump is switched on when the temperature of the solid fuel boiler exceeds the temperature of the buffer storage in the infeed area [T-BUFFER B (F1)] by the hysteresis [MF 1 HYST+ 5K]. Switching off occurs when the temperature drops 5K below the switch-on temperature. Switching off also occurs when the temperature of the solid fuel boiler drops below the set limit temperature [T-MF1 SETP] by 5K. The pump is enabled again when the temperature of the solid fuel boiler exceeds the set limit temperature [T-MF1 SETP].

Blocking HS1:

ON: T-MF1 > HS set temperature + 5K and solid-fuel

boiler pump = ON

OFF: T-MF1 <= HS set temperature or solid-fuel boiler

pump = OFF

Expert area Part 2: Overview of display values and settings

23 = Solar integration (to MF4 because of PT1000 sensor)

T-SOL PANEL [T-MF4] = Temperature of the solar collector T-DHW L [F12]= Temperature of hot water storage tank in infeed area ON: T-SOL PANEL > [T-DHW L + MF4 HYST + 5K] OFF: T-SOL PANEL < [T-DHW L + MF4 HYST]

The pump is switched on when the temperature of the solar collector exceeds the temperature of the storage tank in the infeed area (T-DHW L) by the Hysteresis (MF4 HYST + 5K). Switching off occurs when the temperature drops 5K below the switch-on temperature.

Safety / system protection: OFF: T-DHW B > T-MF4 SETP ON: T-DHW B < [T-MF4 SETP – 5K]

Switching off occurs when storage tank temperature exceeds the set limit temperature (T-MF4 SETP). The pump is enabled again when the storage tank temperature drops below the limit temperature by 5K.

24 = Return flow temperature increase HS1

T-RETURN 1 = Return flow temperature from the installation [= T-MF1 or 1-4]. ON: T-RETURN 1 < T-MF1 SETP

OFF: T-RETURN 1 > [T-MF1 SETP +MF 1 HYST]

The return flow temperature increase pump is switched on if the return flow temperature drops below the temperature setting limit (T-MF1 SETP). It is switched off again when the return flow temperature exceeds the temperature setting limit by the Hysteresis (MF 1 HYST).

25 = Return flow temperature increase HS2

T-RETURN 2 = Return temperature of system ON: T-RETURN 2 < T-MF1 SETP OFF: T-RETURN 2 > [T-MF1 SETP +MF 1 HYST]

26 = Return flow temperature increase HS via buffer storage

ON: T-BUFFER B [F1] > T-MF1 +MF 1 HYST + 5K OFF: T-BUFFER B < T-MF1+MF 1 HYST

The valve to the return flow temperature increase via the buffer storage is opened if the temperature buffer storage low [T-BUFFER B] exceeds the return flow temperature of the installation [sensor

1 or 1-4] by the Hysteresis (MF 1 HYST + 5K). It is switched off again when the temperature buffer storage low drops below the return flow temperature.

Part 2: Overview of display values and settings Expert area

F15 FUNCTION (sensor function F15)

00 = Room sensor for heating circuit 2. If a further sensor at the pulse input [IMP] is detected at this position an FBR is evaluated.

01 = 0-10V input => For Preset Collector set temperature. On evaluation see parameter V-CURVE in the expert/installation level.

02 = light sensor (for plausibility testing with solar – no function in version V1).

03 = 0-10V input preset for modulation. On evaluation see parameter V-CURVE in the expert/installation level.

Expert area Part 3: General function description

Part 3: General function description

Heat circuit control

Weather-dependent control

The boiler or flow temperature is determined via the set heat slope to suit the measured outside temperature in such a way that the set value for the room is approximately set if the heating system is configured correctly.

=> Exact setting of the heat slope is extremely important for weather-dependent control.

The circulation pump is controlled weather-dependently. The circulation pump is switched on if there is a heating demand and in Frost-protection mode.

Room sensor influence

The current room temperature can be included in computation of the required flow temperature via a present room temperature sensor.

The influence factor (parameter list) can be set between 0 (fully weather-dependent regulation) and 20 (room temperature regulation with minimal outdoor temperature influence). Position "----" deactivates room temperature control. Positions "----" and "0" indicate differences for demand-dependent circulation pump control.

Hot water generation

The programmed hot water temperature is stabilised by switching the hot-water cylinder charging pump and the burner. Storage tank charging starts when the storage tank temperature drops below the temperature setting by 5K. Storage tank charging stops when the temperature setting is reached.

OwB => operation without burner

For operation with solar energy for instance. In this operating mode the burner is only enabled when values drop below the set tolerance limit.

Frost protection function

The frost protection circuit prevents the heating system from freezing by automatically switching heating operation on.

Outdoor sensor frost protection

If the measured outside temperature drops below the set frost protection temperature the room temperature setting is set to 5°C for the relevant heating circuit. The heating circuit is enabled:

• the pumps are switched on

• the heat request is sent to the boiler

"----" => outdoor sensor frost protection deactivated

Part 3: General function description Expert area

The function stops when the outside temperature increases to 1K above the frost protection temperature setting.

Boiler frost protection

eBUS burner controls

The controller supports the operation of burner controls via the implemented eBUS. The unit is connected by means of the connector VII (FA eBUS).

Boiler frost protection is activated when the boiler temperature drops below 5°C. The boiler is switched on until the boiler temperature exceeds the "MINIMUM BOILER TEMPERATURE".

Flow or storage tank sensor frost protection

The sensor frost protection is activated when the flow or storage tank temperature drops below 7°C. Only the relevant pump is switched on.

The sensor frost protection is deactivated when the flow or storage tank temperature increases to above 9°C.

Frost protection via room sensor

If the room temperature drops below 5°C the frost protection function is activated.

The room temperature setting for the relevant heating circuit is set to 5°C. The heating circuit is enabled:

• the pumps are switched on

• the heat request is sent to the boiler

Heat request: Controller => Burner / FA

05h07h [in data byte 7 = Process water desired value the burner must not interpret bit 7] additionally

Data/Status: Burner/FA => Controller

05h03h

Requirements for operation:

The burner control unit (FA) must transmit a valid eBUS message. The eBUS supply must be activated if the burner does not also supply the BUS => Expert/System (tap without information => Test function with and without eBUS supply)

EEPROM check

Every 10 minutes, a check is conducted automatically in order to establish whether the settings of the controller lie within the specified limits. If a value is found to be out-ofrange, it is substituted by the related default value. The range transgression is indicated by the blinking E and the error number 81.

Expert area Part 3: General function description

In this case, the user should check the important settings of the controller. The warning symbol is cleared after the unit is restarted (RESET).

Circulation pump control

Switched according to heating requirement

Demand-dependent circulation pump control (automatic summertime switchover) switches the circulation pumps off if there is no heating demand. The mixers are closed at the same time.

Conditions for switch-off:

Room temperature-dependent control

The room temperature exceeds the set desired temperature.

Weather-dependent control

Outside temperature exceeds room temperature set value or flow temperature set value drops below 20°C.

! If the room temperature factor is "0", the pump

continues to run during the reduced operation period after a one-off heating demand.

Switched according to heating limits

If the outside temperature that is measured and calculated by the controller exceeds the heating limit specified here, heating is disabled, the pumps switch off and the mixers

are closed. The heating is enabled again when the outside temperature drops below the set heating limit by 1K (= 1°C).

T-LIMIT DAY => applies during heating times T-LIMIT N => applies during reduction times

Delayed pump switch-off

In the case of switch-off of the circulation pumps, the circulation pumps are not switched off until 5 minutes later if one of the burners was on during the last 5 minutes before the switch-off instant.

Pump blocking protection

The controller effectively prevents blocking of the pumps if they are not switched on for long periods. The integrated protection function switches on all pumps which have not been in operation during the past 24 hours for 5 seconds at 12.00 h ours every day.

Mixer motor blocking protection

If the mixer motor has not moved for 24 hours it is fully opened at approximately 03:00 hrs. (once only). The heating circuit pump is switched off during this time. The maximum flow temperature is monitored. Cancelled at maximum flow temperature – 5K.

Part 4:Appendix Remote controls

Part 4:Appendix

Remote controls

Operation-control module Merlin BM, BM 8, Lago FB

(Only for controller models with CAN-Bus connection)

Remote control FBR2

Connection for HC1: Connector I; (2+collective ground+3) Connection for HC2: Connector III; (1-3)

Electrical connection: Connector IX; 1-4 The controller permits connection of an operation-control module BM for each heating circuit via a bus line. The operation-control module allows various operation-control functions and monitoring functions for the system values to be relocated to the main controlled zone – i.e. the living room. This achieves maximum comfort and convenience. Please refer to the technical description of the BM for a precise description of the overall scope of functions.

• Display of the system parameters

• Entry of the heating circuit parameters

• Room temperature control

• Automatic adaptation of the heat slope (not Lago FB)

• Rotating switch for modifying room temperature setting

Adjusting range: (±5 K)

• Room control via the integrated room sensor

• Rotating switch for selecting operating mode

i Standby/OFF (frost protection only) q

Automatic mode (according to timer program 1 in

controller)

Automatic mode (according to timer program 2 in

controller)

C 24-hour night operation (reduction temperature) B 24-hour daytime operation (comfort temperature)

F Summer mode (heating OFF, hot water only)

! The operating mode at the controller must be set

The controller can also be operated with an FBR1.

Remote controls Part 4:Appendix

DCF receiver

Electrical connection: Connector VII; Terminal 1,2 The controller can evaluate a eBUS DCF receiver on the eBUS FA-Terminals.

If the DCF receiver is connected, the controller time is updated as soon as the DCF transmits a valid time on the BUS.

If the time has not been corrected after max. 10 min, select a different place of installation for the DCF (e.g. another wall - not in proximity to TV devices, monitors or dimmers).

All system-specific parameters can be set and interrogated using the

ComfortSoft parameterisation software. The

parameters can be saved, displayed graphically and evaluated on the PC at predefined intervals. T connect to a PC you need the optical adapter or CoCo PC active, which also supports the sending of error messages by SMS and the remote interrogation of controller data.

Telephone switch

FBR

The heating system can be switched to Heating mode h with a telephone switch. The connection terminals of the controller for the remote control FBR (see connection diagram) are used for installation. As soon as a short circuit between terminal 3 of the FBR and ground (FBR terminal 2) is detected, the assigned heating circuit is switched to heating mode. Additionally the hot water preparation is activated (only for controllers with hot water preparation). When the short-circuit is eliminated, the controller once again heats on the basis of the set heating program.

E If the heating circuit is controlled remotely by an

operating module, the telephone switch must be connected at the operating module.

Part 4:Appendix System bus

System bus

The heating system

This controller can be expanded in a modular fashion using additional modules that are connected via the integrated bus. In its maximum configuration, the system can be used to control the following heating system components

1-8 Boiler (modulating or switching)

1-15 Mixed weather-dependent heating circuits

0-15 Room controller (digital or analogue)

1 Solar system (2 collectors, 2 storage tanks)

1 Solid fuel boiler

The various components are simply coupled to the system bus. The modules log on to the system automatically and search for their communication partners via the defined bus IDs (heating circuit number or boiler number).

System bus Part 4:Appendix

Error messages

Error Error description Communication error

E 90 Adr. 0 and 1 on bus. Bus IDs 0 and 1 may not be

used simultaneously.

E 91 Bus ID used. The set bus ID is already in use by

another device. E 200 Communication error HS1 E 201 Communication error HS2 E 202 Communication error HS3 E 203 Communication error HS4 E 204 Communication error HS5 E 205 Communication error HS6 E 206 Communication error HS7 E 207 Communication error HS8

Internal error

E 81 EEPROM error. The invalid value has been

replaced with the default value

E Check parameter values!

Sensor defective (break/short circuit)

E 69 F5: Flow sensor HC2 E 70 F11: Flow sensor HC1, sensor Multifunction1 E 71 F1: Buffer storage tank low sensor E 72 F3: Buffer storage tank top sensor E 75 F9: Outdoor sensor E 76 F6: Storage tank sensor

E 78 F8: Boiler sensor / Collector sensor (cascade) E 80 Room sensor HC1, F2: F2 Buffer storage tank low

sensor

E 83 Room sensor HC2,

F15: Pool sensor (T-Storage 3) E 135 F12: HW Storage tank low sensor, Multifunction 2 E 136 F13 (PT1000): HS2, Collector2, Multifunction 3 E 137 F14 (PT1000): Collector 1, Multifunction 4

If a fault or error occurs in the heating system, you will see a blinking warning triangle (E) and the related error number on the controller display. Please refer to the table below for the significance of the displayed error code. The system must be restarted after a fault has been remedied => RESET.

RESET : Brief device shut-off (mains switch). Controller restarts, reconfigures itself and continues to operate with the values that have already been set.

RESET+ Ä : Overwrite all settings with default values (except time). The additional button (Ä) must be pressed when the controller is switched on (mains on) until "EEPROM" appears in the display.

Part 4:Appendix Troubleshooting

Troubleshooting

General

If your system malfunctions you should first check that the controller and the control components are correctly wired.

Sensors:

All sensors can be checked in the "General/Service/Sensor test" level. All the sensors that are connected must appear in this level with plausible measurements.

Actuators (Mixer motor, pumps=>only with code no.):

All actuators can be checked in the "General/Service/Relay test" level. All relays can be individually switched using this level. This makes it easy to check whether these components have been correctly connected (e.g. mixer motor direction of rotation).

BUS connection:

In control devices with connection to Mixer motor => Communication symbol appears in standard display ("

" or "v" depending on version)

Boiler controller => Outside temperature and boiler temperature display (see "Display/Installation") In boiler controller with connection to Control unit => Room temperature displayed and current room temperature setting blanked out "----" (see "Display/Heating circuit") In mixer motor expansion controllers with connection to Boiler controller => Outside temperature and boiler temperature display (see "Display/Installation")

Control unit => Room temperature displayed and current room temperature setting blanked out "----" (see "Display/Heating circuit")

In case of communication problems

Check connecting cables: Bus lines and sensor lines must be laid separately, away from mains cables! Poles switches?

Check bus feed: There must be at least 8V DC between the "+" and "-" terminals of the BUS connector (connector IX, terminals 3+4). If you measure a lower voltage, an external power supply must be installed.

Pumps do not switch off

Check manual / automatic switch => Check automatic pump switching => pump switching mode

Pumps do not switch on

Check operating mode => Standard

F (test B)

Check time and heating program => Heating time Check pump switching mode:

Default => Outside temperature > Room set temperature? Heating limits => Outside temperature > Valid heating limit? Room control => Room temperature > Temperature setting + 1K

Technical data

Burner does not switch of at correct time

Check minimum boiler temperature and type of minimum delimiter => Protect from corrosion

Burner will not switch on

Check boiler temperature setting => The temperature setting must be greater than the boiler temperature. Check operating mode => Standard

F (test B)

With solar: Check burner blocking (BOB)

Supply voltage to IEC 38 230 V AC ± 10%

Power consumption Max. 8 VA

Switching capacity of the relays 250 V 2(2) A

Maximum current on terminal L1' 10 A

Enclosure to EN 60529 IP 40

Safety class II to EN 60730 Totally insulated

Switch panel installation in acc. with DIN IEC 61554

Power reserve of the timer > 10 hours

Permitted room temperature during operation

Permitted room temperature during storage

Sensor resistances Tolerance in ohms Temperature tolerance

Tolerance in ohms Temperature tolerance

Tolerance in ohms

Technical data

Recess 138x92

0 to 50°C

- 20 to 60 °C

NTC 5 kΩ (AF,KF,SPF,VF) ± -1% at 25°C +/- 0.2K at 25°C PTC 1010Ω (AFS,KFS,SPFS,VFAS) ± -1% at 25°C +/- 1.3K at 25°C PT1000 sensor with 1 kΩ +/- 0,2%

at 0 °C

Malfunctions due to improper operation or settings are not covered by the warranty.

EN 0608 6.6701.902-09 Printed in Germany, Subject to modification

Kromschroder E8.5064 V1 Operating Instructions Manual

Specifications and Main Features

Frequently Asked Questions

User Manual