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Heating Controller

Operating and

Installation Instructions

Please observe the safety instructions and

read through this manual carefully before

commissioning the equipment.

Safety information General information

General infor mation

Safety information

Power connection regulations

Please note the connection conditions specified by your

local electrical power supply company and the VDE regula-

tions. Your heating control system may only be installed

and serviced by appropriately authorised specialists.

E For fixed devices, a facility for mains disconnection in

accordance with EN 60335 must be installed in

compliance with the installation specifications (e.g.

switch).

E The mains lines insulation must be protected against

damage caused by overheating (e.g. insulation hose).

E The minimum distance to installation objects in the

vicinity must be chosen so that the permitted ambient

temperature is not exceed during operation (see table -

Technical Data).

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

are at put at risk of fatal or serious injury (electric

shock).

Ensure the controller is de-energized prior to

performing any work on the controller!

Safety

Please read and keep in a safe place

Please read through these instructions care-

fully before installing or operating. Following the installa-

tion, pass the instructions on to the operator.

Warranty conditions

If the system is not installed, commissioned, serviced and

repaired properly, it will render the manufacturer's warranty

null and void.

Conversion

All technical changes are prohibited.

Transport

On receipt of the product, check that the delivery is com-

plete. Report any transport damage immediately.

Storage

Store the product in a dry place. Ambient temperature: see

Technical data.

Important text passages

! Important notes are denoted by an exclamation

mark.

E This attention symbol is used to point out dangers in

this manual.

Installation

Notes on installation and commissioning and a connection

plan can be found in part 4 of this manual.

! The operating manual describes the maximum

version of the controller, meaning that not all

statements are relevant for your device.

General information Description

General Notes

! With regard to installation, operation, and

maintenance, the following instructions must be

observed. This device must only be installed by a

specialist technician. Improperly performed repairs

can subject users to considerable risks.

! To comply with applicable regulations, the

instructions for assembly and operation must be

readily available at all times and must be handed

over to the responsible engineer when working on

the device for his attention.

Description

Declaration of conformity

We the manufacturer declare the product E8.0634 is in

conformity with the fundamental requirements of the follow-

ing directives and standards.

Directives:

– 2014/35/EU, 2014/30/EU

Standards:

– EN 60730-1, EN 60730-2-9

The manufacture is subject to the quality management

system in accordance with DIN EN ISO 9001.

Function

The device consists of a two-stage regulation for heat

generators, a service water heating system, control system

for two mixed heating circuits, as well as the following aux-

iliary functions:

 1 timer-controlled output (circulation pump)

 1 temperature-controlled output

The following functions may be assigned to this output

(circulation pump, header pump, solar integration, heat

generator for solid fuel, return flow temperature in-

crease).

 Demand-related circulation pump control

 Automatic toggle between summer and winter time

 Automatic adjustment of function in accordance

with the sensor configuration

Contents General information

Contents

General information 2

Safety information 2

Power connection regulations 2

Safety 2

Warranty conditions 2

Important text passages 2

Installation 2

General Notes 3

Description 3

Declaration of conformity 3

Function 3

Contents 4

Part 1: Operation 7

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

Users 13

Time programs 13

Expert 13

Expert HS (only for HS via eBUS) 13

Levels 13

Installation 13

Hot-water 13

Htg circuit I / II 13

Part 2: Overview of display values and settings 14

General area 14

Date/Time/Holiday 14

Service 16

Code number Entry 16

RELAY TEST 16

SENSOR TEST 17

SW NO XXX-XX 18

HS MANUAL (only with code no.) 18

BURNER TIME and BURN START

(Not for HS via eBUS) 18

LIMITER TEST XX,X°C 18

SERVICE 19

RESET … 19

Display Range 20

Installation 20

T-OUTSIDE 20

T-HS DES 20

T-HS 20

MOD DEPTH (only in the

case of HS via eBUS connection) 20

Temperature of the multifunction relay 20

T-BUFFER B 21

General information Contents

Hot water 22

Heating circuit I / II 22

T-DHW B (storage tank lower temperature) 22

T-ROOM DES A (current value for set room

temperature) 22

T-ROOM (room temperature) 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 adaption) 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 (- - - -) (not an option in all models) 33

BUS ID1 / 2 (heating circuit number) 33

BUS TERMIN 34

EBUS SUPPLY (supply for eBUS) 34

AF SUPPLY (Outdoor sensor power supply) 34

TIME MASTER 34

RESET TIME (resetting time for I-Controller) 34

MAX T-HS

(Maximum heat generator temperature) 35

MIN T-HS

(Minimal heat generator temperature) 35

T-WARM UP (Warm-up relief) 35

MIN-DELIMI (minimum limit heat generator) 35

HYSTERESIS (dynamic switching hysteresis) 36

HYST TIME (Hysteresis time) 36

Contents General information

Operation with two-stage heat generators or

with 2 heat generators 36

LOCK TIME (blocking time 2. burner stage) 36

HYST BURNER 2 (hysteresis 2. burner stage) 36

SEQUENCE CHANGE(time for switching HS) 37

HS COOL-FCT (Cooling function for the heat

generator) 37

T-HS COOL (Start temperature for cooling) 37

Auxiliary relay functions 38

FUNC RELAY 1 (function selection relay 1) 38

T-MF1 (Switching temperature relay 1) 38

HYST MF 1 (Hysteresis relay 1) 38

FUNC RELAY 2 (function selection relay 2) 40

Screed program 42

SCREED (activation of screed drying process) 42

SCREED PROGR (Program setting) 42

Hot water 43

DHW RELIEF(Charge pump lock) 43

PARALLEL DHW (Pump parallel running) 43

T-HS DHW (Heat generator superheating

during hot water preparation) 44

HYST DHW (Hot water charging hysteresis) 44

DHW FOLLOWUP (pump run-down time) 44

THERM INPUT

(storage tank with thermostat) 44

WALL HUNG (for modulating HG) 44

LOAD THROUGH 45

Heating circuit I / II 46

HC FUNCTION

(heating circuit function selection) 46

PUMP MODE (pump operating mode) 47

MIXER OPEN

(mixer dynamics when opening) 48

MIXER CLOSED

(Mixer dynamics when closing) 48

MAX T-FLOW(maximum flow temperature) 48

MIN T-FLOW(minimum flow temperature) 48

T-FROST PROT

(frost protection temperature) 48

T-OUT DELAY (outside temperature delay) 49

SLOPE OFFSET (heating slope distance) 49

B-HEAT SINK (circuit enable) 49

Part 3: General function description 50

Heat circuit control 50

Weather-dependent control 50

Room sensor influence 50

Hot water generation 50

Frost protection function 50

eBUS burner controls 51

EEPROM check 52

Circulation pump control 52

Switched according to heating requirement 52

Delayed pump switch-off 52

Pump blocking protection 52

Mixer motor blocking protection 52

Contents

Part 4: Installation and Start-up 53

Installation 53

Assembly / Dismantling 53

Connecting instructions 54

Notes on connecting heat generators

via the CAN BUS

(also with CoCo, e.g. CAN/OT) 54

System diagram 56

System diagram with HS via eBUS 57

Electrical connection 58

Version 1 58

Version 2 59

Power terminal assignments 60

Sensor terminal assignments 61

Remote controls 63

The operator module Merlin BM, BM 8,

and Lago FB 63

Remote control FBR2 63

Sensor resistances FBR 64

DCF receiver 64

PC 64

Maximum delimiter 65

Telephone switch 65

Sensor values / characteristic curve 66

Sensors 67

Outside sensor AF (AFS) S 67

Immersion sensor KF (KFS) H/ SPF (SPFS) F 67

Strap-on sensor VF (VFAS) v 67

Commissioning 68

Commissioning procedure 68

System bus 69

The heating system 69

Bus ID 69

Error messages 70

Troubleshooting 71

Dimensions 73

Technical data 74

Glossary 75

Part 1: Operat ion

Operation in normal mode Part 1: Operation

Part 1: Operation

For initial start-up, please read the chapter

"Installation and Start-up“

Operation in normal mode

(operating flap closed)



Operating elements

Ç Change the set operating mode

ÇÇ 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:

i Standby / OFF

(Heating OFF and hot water preparation OFF,

only frost protection mode)

F1 AUTOMATIC 1 (Automatic mode 1)

(Heating according to timer program 1; DHW according to

DHW program)

F2 AUTOMATIC 2 (Automatic mode 2)

(Heating according to timer program 2; DHW according to

DHW program)

h HEATING (Day mode)

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

HW program)

C REDUCING (Night mode)

(24 h heating with reduced temperature; HW according to

program)

F SUMMER (Summer mode)

(Heating OFF, HW according to HW program)

Part 1: Operation Operation in normal mode

W Service (automatic reset after 15 min)

heat generator regulated to heat generator set temperature

= max. heat generator temperature= see page 35 ; when

the heat generator temperature has reached 65 °C, the

consumers are regulated to their flow temperature to dissi-

pate heat (cooling function).

! The cooling function must be explicitly enabled in

the consumer circuits by means of the parameter

B-HEAT SINK.

Effect of the operating mode

The operating mode set here affects the HS 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.

If the "i = Standby/OFF", and "F = Summer mode" oper-

ating modes are set at the boiler controller, these settings

have a reducing effect on all heating circuits / consumer

circuits that are present in the entire system.

! For mixing controller only on these heating circuits.

Operation in normal mode Part 1: Operation

Display in normal operation

18 6

E F HGD

! Due to the tolerances of sensors, deviations of

+/- 2 K (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)

D Bus symbol (check data lead to connected

controllers if this symbol does not appear)

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 D Burner ON; heating mode;

F hot water preparation

G Mode selector switch, the display applies to all heat-

ing circuits for which a separate operating mode has

been selected via the "MODE" set value

(here: F 2 => Heating according to timer program 2).

H Display of current heat generator temperature

Part 1: Operation Changing the settings

Changing the settings

The operating flap must be opened first in order to change

or request set values.

=> Controller switches to Operation mode

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.

Operating elements

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).

D => Manual-Automatic switch.

In Manual mode, all the pumps and first burner stage are

switched on. The mixers are not adjusted / controlled (dis-

play: "EMERG-MODE“).

Limitation (switch-of with 5 K hysteresis):

 Burner => MAX T-HS (Expert)

 Heating pumps => MAX T-FLOW (expert)

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

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

Set mixer by hand!

E => PC connection via optical adapter

Changing the settings Part 1: Operation

Operating level

General SERVICE

DATE/TIME/HOLIDAY

Open

operating

flap

Ç Turn anticlocwise 





Ç Turn clockwise 





Display

INSTALLATION

HOT-WATER

HTG CIRCUIT I

HTG CIRCUIT II

User

INSTALLATION

HOT WATER

HEAT CIRCUIT I

HEAT CIRCUIT II

Time programs

CIRCL TIME

HOTW-PROG

HTG-PROG ID 1

etc...

Expert

INSTALLATION

HOT-WATER

HTG CIRCUIT I

HTG CIRCUIT II

Expert HS INSTALLATION

Operation is divided into different areas:

General - Display - Users - Time Programs - Expert -

Expert HS

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 cur-

rent 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 INSTALLATION is displayed once on-

ly. Once the values grouped here have been set the

controller is operable.

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 there-

fore excluded in this area.

Users

Summary of settings that can be made by the operator.

Time programs

Summary of time programs for heating circuits, the hot wa-

ter circuit and possibly the circulation pump

Expert

Summary of values for which expert knowledge is required

to make settings (installation technician).

Expert HS (only for HS via eBUS)

For parameters, refer to description of HS

Summary of the values transmitted by the automatic burn-

er control system.

E Making incorrect settings in the expert level can cause

damage to the system or the property that is being

heated. => The values in the expert level are protected

by a code number.

Levels

The settings in the different areas are sorted into operating

levels

 INSTALLATION

 HOT WATER

 HEAT CIRCUIT I

 HEAT CIRCUIT II

Installation

All display values and settings that relate to the heat gen-

erator or the entire system and cannot be assigned to a

consumer circuit.

Hot-water

All display values and settings that affect central hot water

preparation and circulation.

Htg circuit I / II

All display values and settings that relate to the associated

consumer circuit.

When heat circuit II is being configured as a hot water cir-

cuit, for example, the settings for this distributed hot water

circuit can be found in the "Heat circuit II" operating level.

! An overview of all settings can be found on the

following pages.

General area Part 2: Overview of display values and settings

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

open with Ä

Part 2: Overview of display values and settings

Part 2: Overview of display values and set-

tings

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 and open with ÇÄ)

Date/time => Value group

(General -> Date/Time/Holiday level)

All the values in this group are set in sequence => ad-

just using Ç Ä => continue with

TIME

(Minutes)

Current minutes blink and can be ad-

justed

TIME

(Hours)

Current hours blink and can be ad-

justed (seconds are set to "00" when

stored)

YEAR Adjust current year

MONTH Adjust current month

DAY Adjust current day (date)

! 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 en-

tering the date.

Part 2: Overview of display values and settings General area

! 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.

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

General area Part 2: Overview of display values and settings

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

open with Ä

Service

This area contains values for the customer service engi-

neers 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 Pump, heating circuit 1

02 Mixer OPEN, heating circuit 1

03 Mixer CLOSED, heating circuit 1

04 Pump, heating circuit 2

05 Mixer OPEN, heating circuit 2

06 Mixer CLOSED, heating circuit 2

07 Burner 1 ON

08 Burner 1 and 2 ON (2 after 10 seconds)

09 Hot water charging pump

10 Timer-controlled relay (multifunction relay 2)

11 Temperature-controlled relay (multifunction relay 1)

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

Start sensor test with Ä, use Ç to select sensor =>

temperature is displayed; Use Ä to stop sensor test

Part 2: Overview of display values and settings General area

Sensor test => Value group

(General -> Service level)

Select sensor using Ç => value is displayed

T-OUTSIDE Outside temperature

T-HS Temperature of the heat generator

T-DHW Hot water temperature

T-FLOW D 1 Flow temperature, heating circuit 1

T-ROOM D 1 Room temperature heating circuit 1

(only with remote control)

T-DHW F D 1 Storage tank charging via heat exchanger,

flow temperature HC1

T-DHW B D 1 Hot water storage tank temperature, lower

heating circuit 1

T-FLOW D 2 Flow temperature, heating circuit 2

T-ROOM D 2 Room temperature heating circuit 2

(only with remote control)

T-POOL D 2 Swimming pool temperature, heating circuit 2

T-DHW B D 2 Hot water storage tank temperature, lower

heating circuit 2

T-RETURN

T-SOLID FUEL,

T-HEADER

T-SOL PANEL

T-CIRCL

T-DHW B

T-MF1

Temperature of the multifunction sensor =>

Display according to function set for multifunc-

tion relay (see left)

T-BUFFER B For solid fuel or solar integration => Sensor in

storage tank

SENSOR TEST

Multifunction sensor according to function set for relay

01 = Header pump

=> T-HEADER = Collector temperature (display only if

sensor is connected)

20 = Temperature-controlled circulation pump

=> T-CIRCL = Temperature of circulation pipe return

21 = Circulation pump via pulse

=> no temperature display (display with ON/OFF)

Parameter LOAD THROUGH at the level Expert –Hot wa-

ter is activated (= 01)

=> T-DHW B = Temperature of the hot water tank at the in-

let area

22 = Integration of the heat generator for solid fuel

=> T-SOLID FUEL = Temperature of the heat generator for

solid fuel,

=> T-BUFFER B = Temperature of the storage tank at the

inlet area

23 = Solar integration

=> T-SOL PANEL = Temperature of the solar collector,

=> T-BUFFER B = Temperature of the storage tank in the

inlet area

24 = Return flow temperature increase

=> RETURN TEMP = Return temperature to HS

32 = Heating circuit direct => HTG CIRCUIT3 (display

ON/OFF)

T-MF1=> Temperature display without function selection

=> without sensor no display (- - - - )

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

HS MANUAL Only for HS via eBUS

BURNER TIME 1 H Ä burn time (h) burner 1

BURNER START 1 Burner starts for burner 1 H Ä

BURNER TIME 2 H Ä burn time (h) burner 2

BURNER START 2 Burner starts for burner 2 H Ä

LIMITER TEST

XX,X°C

Safety temperature limiter test with

heat generator temperature display

Start with Ä (hold down)!

SERVICE

(only with code no.)

Input of date / operating hours for

the yearly maintenance message

RESET USER 00 Load factory settings for user pa-

rameters. (Except language)

RESET EXPERT 00

(only with code no.)

Load factory settings for Expert pa-

rameters.

(Except sensors)

RESET T-PRG 00 Load time program factory settings

RETURN Exit level using Ä

SW NO XXX-XX

Display software number with index (please specify if you

experience problems or have questions about the control-

ler)

HS MANUAL (only with code no.)

Only for HS via eBUS

Open level with

Ä Çand select burner stage using .

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 presetting an output

value > 50 %.

After closing the service functions the entries are reset au-

tomatically.

BURNER TIME and BURN START (Not for HS via

eBUS)

Ä Ä => Display of current value => Return

Ä hold down until "RESET" display goes off =>

Reset display

LIMITER TEST XX,X°C

Display of 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 maintenance message

Delete active maintenance display:

Open control panel cover, press prog. button 2x Ä, set

display value to "00" using Ç and confirm with Ä.

Delete programmed yearly message:

At the level General/Service set the value SERVICE

=>DAY or

SERVICE => OPERATING H to dashes.

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 adjustments possible. 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 (- - - -).

Installation

(HG => heat generator)

Select parameter using Ç => value is displayed

T-OUTSIDE Outside temperature

T-HS DES HG temperature setting

T-HS HG flow temperature

MOD DEPTH Modulation degree of HS (BUS)

T-RETURN

T-SOLID FUEL

T-HEADER

T-SOL PANEL

T-CIRCL

CIRCL IMPULS

T-DHW B

HTG CIRCUIT3

HS return temperature

Temperature of the heat generator

for solid fuel

Header temperature

Temperature of the solar collector

Return flow temp. of the circulation

Circulation via pulse

Temp. of the hot water tank lower

measuring point (see hot water func-

tions)

Additional direct heating circuit

T-BUFFER B Buffer storage lower temperature

RETURN Exit level using Ä

T-OUTSIDE

The measured outside temperature is smoothed for control

purposes. The smoothed value is displayed here.

T-HS DES

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

Measured actual temperature of the heat generator

MOD DEPTH (only in the case of HS via eBUS

connection)

Only if a modulating heat generator is connected via eBUS

and transmits this value.

Temperature of the multifunction relay

T-RETURN = Return temperature of system

T-SOLID FUEL = Temperature of the heat generator for

solid fuel, => T-BUFFER B = Temperature of the

storage tank at the inlet area

T-HEADER = Collector temperature

(display only if sensor is connected)

T-SOL PANEL = Temperature of the solar collector,

=> T-BUFFER B = Temperature of the storage tank at

the inlet area

Part 2: Overview of display values and settings Display Range

T-CIRCL = Return temperature of the circulation pipe

CIRCL PULSE = for circulation pump via pulse the pulse

input status is displayed

(ON/OFF)

T-DHW B = Temperature of hot water storage tank at inlet

area

HTG CIRCUIT3 = for additional direct heating circuit the

pulse input status is displayed (ON/OFF)

T-BUFFER B

For solid fuel or solar integration => Buffer storage tank

temperature at the inlet area

Display Range Part 2: Overview of display values and settings

Hot water

T-DHW DES Current hot water set tempera-

ture according to heating pro-

gram and operating mode

T-DHW Current hot water temperature

T-DHW B Current temperature of HW tank

in the lower section (charge-

through)

RETURN Exit level using Ä

Heating circuit I / II

T-ROOM DES A Current room set temperature ac-

cording to heating program and op-

erating mode

T-ROOM Current room temperature

T-POOL DES *) Swimming pool temperature setting

T-POOL *) Current swimming pool temperature

HUMIDITY ***) Current relative humidity

T-DHW DES **) Hot water temperature setting

T-DHW **) Current hot water temperature

T-FLOW DES Current flow temperature setting

T-DHW B ) Lower hot water storage tank temp. **

T-DHW F **) Storage tank charging via heat exch.

T-FLOW Current flow temperature

N-OPTI-TIME Previous time required to heat up

with heat-up optimisation activated

RETURN 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 B (storage tank lower temperature)

Temperature at lower hot water tank sensor. The value is

only displayed if the value "LOAD THROUGH" is activated

at the level EXPERT => HOT WATER.

T-ROOM DES A (current value for set room tempera-

ture)

If an operator device is connected, there is no display

(“- - - -") in the controller => Value is displayed in the oper-

ator device

T-ROOM (room temperature)

Only if a sensor or an FBR is connected.

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

grammed for regulating a pool.

) These values only appear if the heating circuit is pro-

grammed as a hot water circuit.

***) This value is only displayed if an operator device is

connected and the parameters have been set for the cor-

responding heating circuit.

“- - - -„ => no humidity sensor available in operator device

Part 2: Overview of display values and settings User Area

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

open with Ä

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 Ç Ä Select value, adjust and save

Designation Value range Default IV*)

GERMAN Acc. to version GERMAN

CONTRAST (-20) – (20) 0

DISPLAY SEL Sensor, weekday - - - -

SELECT

PROG

Heat circuit 1,

Heat circuit 2

RETURN Exit level using Ä

*) IV = Internal Values:

Space for entering the parameters stored in the system!

GERMAN => Language

Select controller language

CONTRAST

Adjust intensity of display

DISPLAY SEL

Select additional display in standard operation

- - - - => no additional display of

DAY => Week day (Mon, Tue, Wed, ....)

T-OUTSIDE => Outside temperature

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

T-FLOWD 2 => Flow temperature heating circuit 2

T-DHW => Hot water temperature (upper)

T-HS => Heat generator temperature

T-ROOMD 1 => Room temperature heating circuit 1 => *)

T-ROOMD 2 => Room temperature heating circuit 2 => *)

*) only if remote control is connected

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 0 K – 70 K 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

ANTILEGION = 01 => Every 20th time that heating takes

place or once per week on Saturday at 01:00 hrs the stor-

age tank is heated up to 65 °C.

It is possible to set up your own hot water short time heat-

ing function using the third hot water enable facility.

1X DHW (1x Hot water)

01 => The storage tank is enabled for charging once

(e.g. for showering outside hot water times).

Charging starts when the temperature drops below set

temperature " T-DHW 1 DES " by the switching hysteresis.

After charging, the value is automatically set to "00".

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.

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

below the temperature setting by the set value + the hyste-

resis.

! This function may be affected by alternative energy

sources that are connected via bus (e.g. SD3-Can).

CIRCL-P-DHW (Circulation with hot water)

01 => The circulation pump runs when the hot water is en-

abled, 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

*) depending on function selector Heating circuit T-POOL,

T-DHW, T-FLOW DAY or T-FLOW REDUC (see page 46)

MODE

- - - - => The controller programming switch applies in this

case.

When setting an operating mode the mode only applies to

the assigned heating circuit. When the "i =

Standby/OFF", and "F = Summer mode" controller pro-

gramming switch operating modes are set, this has a re-

ducing 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

Heating circuit I / II

Designation Value range Default IV

MODE ----,i, ,F1,F2,BB - - - -

T-ROOM DES 1*) 5 °C – 40 °C 20 °C

T-ROOM DES 2*) 5 °C – 40 °C 20 °C

T-ROOM DES 3*) 5 °C – 40 °C 20 °C

T-REDUCED *) 5 °C – 40 °C 10 °C

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 Exit level using Ä

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 switch-

ing according to heating limit"

If the outside temperature that is measured and calculated

by the controller exceeds the heating limit specified here

by 1 K (= 1 °C), 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.

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 de-

grees the flow temperature changes if the outside tem-

perature 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]

Outside temperature [°C]

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.

0,2

0,4

0,6

0,8

1,2

1,5

2,5

100

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

Part 2: Overview of display values and settings User Area

Guideline values

 Underfloor heating S = 0.4 to 0.6

 Radiator heating S = 1.0 to 1.5

ADAPTION (heat slope adaption)

Only active if an FBR analogue room device is connected

(room sensor + operating mode selection) and an outdoor

sensor.

Function for automatic heat 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 deter-

mined 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.

! During the adaptation, the water heating and the

heating optimisation of the regulator are blocked.

ROOM INFL (Room sensor influence)

Only active if an FBR analogue room device is connected

(room sensor + operating mode selection).

The heat generator temperature is increased by the set

value when the temperature drops below the required

room temperature by 1 K.

=> High values lead to fast control and large heat genera-

tor 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)

For room control (e.g. with FBR), the measurement can be

corrected by means of this setting should the room sensor

not measure correctly.

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

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

open with Ä

Timer Program Area

All the time programs can be set in this area.

List of available time programs

With maximum controller configuration

Select timer program using select timer program for Ç Ä

display or adjustment

CIRCL TIME Switching program for circulation

pump

HOTW-PROG Enabling program for hot water

charging pump

HTG-PROG 1

D 1

1. heating program for first control-

ler heating circuit

HTG-PROG 2

D 1

2nd heating program for first con-

troller heating circuit

HTG-PROG 1

D 2

1. heating program for second con-

troller heating circuit

HTG-PROG 2

D 2

2nd heating program for second

controller heating circuit

RETURN Exit level using Ä

Selecting a timer program

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

Ç to the right until clock

=> "USER => INSTALLATION",

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

Ä Confirm/open timer program

=> "MONDAY"

When connecting a digital room controller with heating

program input, the corresponding heating program in this

controller is automatically faded out.

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

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

F2 = Heating program 2, F1 = Heating program 1

D B DI = Start time 1, I = Stop time 1, II = Start time 2,

IIB = Stop time 2, DIII = Start time 3, IIIB = Stop time 3

Timer/heating program adjustment

Ç Select weekday (Mo-Su) or block

(MO - FR => Monday-Friday, SA - SU => Saturday-

Sunday, MO - SU => Monday-Sunday)

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 en-

tered (see page 16).

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 - 9999 0000

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

BUS ID 1 (- - - - ,00), 01 - 15 01

BUS ID 2 (- - - -), 02 - 15 02

BUS TERMIN 00, 01 (OFF/ON) 01

EBUS SUPPLY 00,01 (OFF / ON) 01 =

AF SUPPLY 00,01 01 =

TIME MASTER 00, 01 00 =

DYN UPWARD *) 20 – 500 K 100 K

DYN DOWNWARD *) 20 – 500 K 100 K

RESET TIME *) 5 - 500 50

MAX T-HS 30 °C – 110 °C 85 °C

MIN T-HS 10 °C – 80 °C 40 °C

T-WARM UP 10 °C – 85 °C 35 °C

MIN-DELIMI 00, 01, 02 00

See following pages for continuation

*) only for HS via eBUS

1) Controller .0324-P and .0634-P = 67 °C

2) Controller .0324-P and .0634-P = 62 °C

3) Controller .0324-P and .0634-P = 01

CODE-NO

Entering the code number (see page 16) allows all of the

expert settings to be modified => including the code num-

ber itself (first parameter)

(Ç on right => CODE-NO 0000

Ä=> Ç 1st digit

Ä=> Ç

2nd digit

Ä Ç Ä Ç=> 3rd digit => 4th digit

Ä=> Ç)

BUS-ID HS (- - - -) (not an option in all models)

The controller will be used as cascade with setting

"01 - 08". Settings > 08 can only be supported when cas-

cading of cascades with corresponding cascade manag-

ers.

BUS ID1 / 2 (heating circuit number)

The heating circuits are sequentially numbered starting

with "01". heating circuit numbers must not be assigned

twice. For replacement controllers, please enter exactly the

same heating circuit numbers as the replaced controller.

Expert area Part 2: Overview of display values and settings

BUS TERMIN

This parameter is used to switch the terminal resistance for

Can communication. The entire system may contain exact-

ly one terminating resistor.

Delivery state:

 Mixer controller (1124) => "00“

 Boiler controller (0634, 0324,...) => "01“.

(Parameter BUS ID HS1 > 00 => BUS TERMIN = 00)

E When loading the factory settings, the terminal

resistance is newly set (according to boiler sensor).

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.

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".

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.

! No more than 1 TIME MASTER is permitted in the

system!

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 deactiva-

tion [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.

Part 2: Overview of display values and settings Expert area

! Small values cause a fast regulatory behavior and

could cause to a oscillation of the boiler

temperature.

MAX T-HS (Maximum heat generator temperature)

 Protects the heat generator from overheating / pre-

vents triggering the LIMITER.

 Limiting the heat generator temperature

to save energy.

! Caution: Also works with hot water preparation.

MIN T-HS (Minimal heat generator temperature)

Reduces condensation in the heat generator when heating

demand is low. In all cases, the heat generator is never

switched off before the minimal heat generator tempera-

ture has been reached

MIN T-HS + HYSTERESIS (also see MIN-DELIMI).

T-WARM UP (Warm-up relief)

Reduces operation in condensation zone. The circulation

pumps are switched off and the mixers are shut until the

heat generator has reached the start-up temperature.

MIN-DELIMI (minimum limit heat generator)

Reduces condensation in the heat generator when heating

demand is low. In all cases, the heat generator is never

switched off before the minimal heat generator tempera-

ture has been reached MIN T-HS + HYSTERESIS.

00 = Minimum limit on heat slope

The heat generator switches on when the

temperature drops below the temperature

demanded by the consumers (T-HS DES).

01 = Minimum limit during heating requirement During

heating requirement (Pump enabled), the heat

generator maintains at least the set minimum

temperature MIN T-HS.

02 = Permanent minimum limit (24 hours)

The heat generator maintains at least the set

minimum temperature MIN T-HS over 24 hours.

Expert area Part 2: Overview of display values and settings

Installation

Designation Value range Default IV

HYSTERESIS 5 K – 20 K 5 K

HYST TIME 00 min – 30 min 00 min

LOCK TIME 00 min – 30 min 00 min

HYST BURNER 2 2 K – 20 K 2 K

BOILER SEQ 0 h – 250 h 0 h

Cooling function

HS COOL-FCT 00 – 01 00

T-HS COOL 30 °C – 120 °C 95 °C

See following pages for continuation

HYSTERESIS (dynamic switching hysteresis)

HYST TIME (Hysteresis time)

Function for optimising heat generator operation with dif-

fering heat generator loads.

The effective switching hysteresis is reduced linearly after

the burner is switched on from the set HYSTERESIS to the

minimum hysteresis (5 K) during the hysteresis time

"HYST TIME".

Low heat consumption

If the system consumes little heat, the heat generator

quickly reaches the set temperature. In this case the high-

er 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 5 K. This

prevents the heat generator from heating to unnecessary

high temperatures. The energy consumption of the heating

system is optimised.

! The set value of "00“ produces a constant hysteresis

value.

Operation with two-stage heat generators or with 2

heat generators

LOCK TIME (blocking time 2. burner stage)

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

times of the connected burner controllers to make

the correct settings.

HYST BURNER 2 (hysteresis 2. burner stage)

Switch on the 1st Burner stage when temperature drops

below set temperature of the heat generator.

Switch off the 1st burner stage when the temperature set-

ting is exceeded by the HYSTERESIS.

Switch on the 2nd burner stage

- after start of 1st burner stage

Part 2: Overview of display values and settings Expert area

- and temperature drops below temperature setting by 5 K

(= start of blocking time / enable 2nd. burner stage)

- and expiration of blocking time

Switch off 2nd burner stage when the temperature setting

is exceeded by the HYSTERESIS.

Switch 2nd Burner stage when temperature drops below

set temperature of the heat generator.

Switch off the 1st burner stage when 2nd stage enabled

after set temperatures are exceeded by [HYSTERESIS +

HYST BURNER2]

57°C

55°C

50°C

45°C

A Temperature of the heat generator

B Time

C Set temperature of the heat generator

D LOCK TIME (blocking time 2. burner stage)

E HYSTERESIS (dynamic switching hysteresis)

F HYST BURNER2 (hysteresis for 2nd heat generator)

a Stage 1 on

b Start of blocking time

c Stage 2 on (stage 2 enable)

d Stage 2 off

e Stage 1 off (cancel stage 2 enable)

SEQUENCE CHANGE(time for switching HS)

Only for operation with two heat generators.

The controller can be optionally used for controlling heat-

ing systems with two-stage burners or heating systems

with two single-stage heat generators. For operation with

two heat generators, there is the option to switch the HS

sequence after the number of operating hours set here for

the current heat generator "1".

HS COOL-FCT (Cooling function for the heat generator)

T-HS COOL (Start temperature for cooling)

E Applies to 1st heat generator or the solid fuel boiler

(multifunction relay 1)!

If the cooling function for the heat generator is activated

(HS COOL-FCT = 01), the heating circuits are put into op-

eration with T-FLOW MAX (if cooling function permitted in

HC) as soon as the set starting temperature T-HS COOL

is exceeded by one of the heat generators. The cooling

function is stopped when the temperature drops below the

start temperature T-HS COOL by 5 K.

Part 2: Overview of display values and settings Expert area

20 = Temperature-controlled circulation pump

T-CIRCL = Return flow temperature of circulation line

ON: T-CIRCL < T-MF1

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

The circulation pump is switched on when the return flow

temperature drops below the set limit temperature

(T-MF1).The pump is switched off again when the return

flow temperature exceeds the set limit temperature by the

Hysteresis (HYST MF 1).

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: In the event of short circuit at multifunction 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 = Integration of the heat generator for solid fuel

T-SOLID FUEL = Temperature of the heat generator for

solid fuel

T-BUFFER B = Temperature of the storage tank at the in-

let area (connector III, pin 2 + 3)

ON: T-SOLID FUEL >

[T-BUFFER B + HYST MF 1 + 5K]

OFF: T-SOLID FUEL <

[T-BUFFER B + HYST MF 1]

Start-up relief:

ON: T-SOLID FUEL > T-MF1

OFF: T-SOLID FUEL < [T-MF1 – 5K]

The pump is switched on when the temperature of the heat

generator for solid fuel exceeds the temperature of the

buffer storage at the inlet area (T-BUFFER B) by the hyste-

resis (HYST MF 1 + 5 K). Switching off occurs when the

temperature drops 5 K below the switch-on temperature.

Switching off additionally occurs when the temperature of

the heat generator for solid fuel drops below the set limit

temperature

(T-MF1) by 5 K. The pump is enabled again when the tem-

perature of the heat generator for solid fuel exceeds the

set limit temperature

(T-MF1).

Disabling the HS1:

ON: T-SOLID FUEL +5 K > T-HS DES and solid fuel

boiler pump = ON

OFF: T-SOLID FUEL < T-HS DES or solid fuel boiler

pump = OFF

Expert area Part 2: Overview of display values and settings

! Disabling the HS1 only occurs if the solid fuel boiler

is integrated in the HS1 controller.

If the cooling function is activated, it will also affect

the solid fuel boiler function.

23 = Solar integration

T-SOL PANEL = Temperature of the solar collector

T-BUFFER B = Temperature of the storage tank at the in-

let area (connector III, pin 2 + 3)

ON: T-SOL PANEL >

[T-BUFFER B + HYST T-MF1+ 5K]

OFF: T-SOL PANEL <

[T-BUFFER B + HYST T-MF1]

The pump is switched on when the temperature of the so-

lar collector exceeds the temperature of the buffer storage

at the inlet area (T-BUFFER B) by the hysteresis (HYST

MF 1 + 5 K). Switching off occurs when the temperature

drops 5 K below the switch-on temperature.

Safety / system protection:

OFF: T-BUFFER B > T-MF1

ON: T-BUFFER B < [T-MF1– 5K]

Switching-off occurs when the temperature of the storage

tank at the inlet area exceeds the set limit temperature

(T-MF1). The pump is enabled again when the storage

tank temperature drops below the limit temperature by 5 K.

24 = return flow temperature increase

T-RETURN = Return temperature of system

ON: RETURN TEMP < T-MF1

OFF: RETURN TEMP >

[T-MF1+ HYST T-MF1]

The return flow temperature increase pump is switched on

if the return flow temperature drops below the set limit

temperature (T-MF1). It is switched off again when the re-

turn flow temperature exceeds the set limit temperature by

the Hysteresis (HYST T-MF1).

32 = Direct heating circuit

Is activated by means of a short circuit at the sensor input

of relay 1 and switches the heating circuit pump ON. There

is an after-run after the sensor short circuit is cancelled.

The HS obtains a set temperature value from the parame-

ter " T-MF1 “.

FUNC RELAY 2 (function selection relay 2)

00 = no 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 is effective af-

ter the heat generator is switched on.

02 = Circulation

Switching the relay according to the circulation program

Part 2: Overview of display values and settings Expert area

03 = Booster pump

ON: In the event of a heating request from an internal con-

sumer OFF: Without internal consumer heating request A

pump after-run occurs.

05 = Pump heat generator 1

When using the controller to control two heat generators

the relay may be used to control the heat generator pump

for heat generator 1.

(Relay switches with burner relay 1; run-down = 5 min)

06 = Pump heat generator 2

When using the controller to control two heat generators

the relay may be used to control the heat generator pump

for heat generator 2.

(Relay switches with burner relay 2; run-down = 5 min)

Expert area Part 2: Overview of display values and settings

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 Ç Ä Ç => Screed program; Select day; => Activate adjustment date; Set flow temperature;

Ä Ç Ä => Save setting; Select next day or exit screed program using "RETURN" + .

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.

! The screed drying process can only be performed

for the mixer circuits of the HS controller.

After starting, the program runs through the set flow tem-

peratures. The integrated mixer circuits control to the set

flow temperature. The heat generator provides this tem-

perature irrespective of the operating mode that has been

selected. This is marked in the standard display by the en-

try "SCREED" and a display of the current flow tempera-

ture.

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).

Part 2: Overview of display values and settings Expert area

Hot water

Designation Value range Default IV

DHW RELIEF 00, 01 (OFF/ON) 01 = ON

PARALLEL DHW *) 00, 01, 02, 03 01

T-HS DHW 00 K – 50 K 20 K

HYST DHW 5 K – 30 K 5 K

DHW FOLLOWUP 00 min – 30 min 00 min

THERM INPUT 00, 01 (OFF/ON) 00 = OFF

WALL HUNG 00, 01 (OFF/ON) 00 = OFF

LOAD THROUGH 00. 01 (OFF/ON) 00 = OFF

RETURN Exit level using Ä

DHW RELIEF(Charge pump lock)

The charging pump is not switched until the heat generator

temperature exceeds the storage tank temperature by 5 K.

It is switched off when the heat generator temperature

drops below the storage tank temperature. This prevents

the storage tank from being cooled by the heat generator

when hot water preparation starts.

PARALLEL DHW (Pump parallel running)

*) Function with [CoCo2 index03] => 02 = 03;

with CoCo1/CoCo2 (< index 03) => 01 = 00 and 02 = 03

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 en-

abled again when the heat generator has reached the

temperature of hot water set temperature + heat generator

superheating [T-DHW + T-HS DHW]. If the heat generator

temperature drops below the enable temperature by the

switching hysteresis [HYST DHW], the mixer circuits are

blocked again.

02 => Pump parallel running: Only the direct heating cir-

cuits 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 cir-

cuit: During hot water preparation all heater circuits contin-

ue to be heated. The hot water preparation is extended by

this function. When the heat generator temperature ex-

ceeds 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

Part 2: Overview of display values and settings Expert area

LOAD THROUGH

T-DHW = Temperature of hot water storage tank at outlet

area

Storage tank charging:

ON: T-DHW < T-DHW DES - HYST DHW

OFF T-DHW B > T-DHW DES

Charging the storage tank is stopped when the storage

tank set temperature is measured at the lower sensor.

! If this function is activated, the auxiliary functions

with sensor integration

(“EXPERT => INSTALLATION “, parameter ” FUNC

RELAY 1 “ => 20 - 32) are not possible

Expert area Part 2: Overview of display values and settings

MIXER OPEN (mixer dynamics when opening)

Speed setting at which the mixer motor opens when a con-

trol 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.

MIXER CLOSED (Mixer dynamics when closing)

Speed setting at which the mixer motor closes when a con-

trol 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

0 °C

T-OUT DELAY 0:00 – 24:00 0:00

SLOPE OFFSET 0 K – 50 K 5 K

B-HEAT SINK 00, 01 (OFF/ON) 01 = ON

RETURN Exit level using Ä

1) Controller .0324-P and .0634-P = 35 K

MAX T-FLOW(maximum flow temperature)

The measured temperature setting for the heating circuit

flow is limited to the maximum flow temperature setting

(overheating protection).

E The heating circuit pump of the direct heating circuit is

only switched off if the temperature of the heat

generator exceeds the maximum flow temperature by

8K. The heating circuit pump is switched on again

when the temperature of the heat generator drops

below the temperature

[maximum flow temperature + 5 K].

MIN T-FLOW(minimum 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!

Part 3: General function description Expert area

Heat generator frost protection

The heat generator frost protection is activated when the

heat generator temperature drops below 5 °C. The heat

generator is switched on until the heat generator tempera-

ture exceeds the "MINIMUM HEAT GENERATOR

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 rele-

vant 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 protec-

tion function is activated.

The room temperature setting for the relevant heating cir-

cuit is set to 5 °C. The heating circuit is enabled:

 the pumps are switched on

 the heat request is sent to the heat generator

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).

Heat request: Controller => Burner / FA

05h07h [in data byte 7 = Process water desired value the

burner must not interpret bit 7] additionally

05h01h [in data byte 3 the collector temperature is trans-

mitted (instead of hot water desired temperature)]

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/ Installation (tap without in-

formation => Test function with and without eBUS supply)

Produktspezifikationen

Marke:	Daikin
Kategorie:	Nicht kategorisiert
Modell:	D2CND024A4AA

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