DeDietrich AMC 15, AMC 25/28 MI, AMC 25, AMC 35 Installation And Service Manual

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ADVANCE

S U S T A I N A B L E C O M F O R T

AMC

Ireland

Installation and Service Manual

Wall-hung gas condensing boilers

AMC 15 AMC 25 AMC 35

AMC 25/28 MI

Diematic Evolution

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2 AMC 7686707 - v.01 - 06092018

Contents

1 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.1 General safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.2 Recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.3 Liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.3.1 Manufacturer's liability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.3.2 Installer's liability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1.3.3 User's liability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

2 About this manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.2 Additional documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.3 Symbols used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.3.1 Symbols used in the manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

3 Technical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.1 Homologations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.1.1 Certifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.1.2 Unit categories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

3.1.3 Directives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

3.1.4 Factory test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.2 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

3.3 Dimensions and connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

3.4 Electrical diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

4 Description of the product . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

4.1 General description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

4.2 Operating principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

4.2.1 Automatic refill device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

4.2.2 Circulation pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

4.2.3 Water flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

4.2.4 Skeleton diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

4.3 Main components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

4.4 Control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

4.5 Standard delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

5 Before installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

5.1 Installation regulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

5.2 Choice of the location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

5.2.1 Data plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

5.2.2 Location of the boiler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

5.2.3 Ventilation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

6 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

6.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

6.2 Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

6.2.1 Installing the mounting frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

6.2.2 Positioning the boiler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

6.3 Hydraulic connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

6.3.1 Rinsing the system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

6.3.2 Water flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

6.3.3 Connection of the heating circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

6.3.4 Connection of the water circuit for domestic use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

6.3.5 Connecting the secondary heating circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

6.3.6 Disconnecting the secondary heating circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

6.3.7 Connecting the expansion vessel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

6.3.8 Connecting the condensate drain pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

6.4 Gas connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

6.5 Air supply/flue gas outlet connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29

6.5.1 Classification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

6.5.2 Requirements for shaft for C93 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31

6.5.3 Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

6.5.4 Dimensions of flue gas outlet pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33

6.5.5 Length of the air and flue gas pipes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33

6.5.6 Additional guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

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6.5.7 Connecting the flue gas outlet and air supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

6.6 Electrical connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

6.6.1 Recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37

6.6.2 Control unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

6.6.3 Connecting a PC/laptop and diagnostic tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

6.6.4 Access to the connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38

6.6.5 Connection options for the standard PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

6.6.6 Access to the PCB housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

6.6.7 Description of the SCB-10 PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41

6.7 Connection diagrams PCB SCB-10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

6.7.1 Symbols used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

6.7.2 Factory configuration of circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

6.7.3 Boiler settings with SCB-10 control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

6.7.4 Connection direct zone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

6.7.5 Connection 1 direct zone + DHW zone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

6.7.6 Connection 1 LLH + 1 direct zone + DHW zone with electrical heating element . . . . . . . . . . . . . . . . . . . . . .51

6.7.7 Connection 1 LLH + 1 direct zone + mixing zone + DHW zone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

6.7.8 Connection 1 LLH + 1 direct zone + mixing zone + DHW zone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

6.7.9 Connection 1 LLH + 1 mixing zone + 1 direct zone + swimming pool + DHW zone . . . . . . . . . . . . . . . . . . . 56

6.7.10 Connection 1 LLH + 3 mixing zones + DHW zone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

6.7.11 Connection 1 combi–buffer + 1 direct zone + 1 mixing zone + solar collectors . . . . . . . . . . . . . . . . . . . . . . . 60

6.7.12 Connection 1 combi–buffer + 1 direct zone + 1 mixing zone + swimming pool + solar collectors . . . . . . . . . 61

6.7.13 Connection 2 boilers (cascade) + LLH + 1 direct zone + 1 mixing zone + DHW zone . . . . . . . . . . . . . . . . . 63

6.8 Filling the system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

6.8.1 Water quality and water treatment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65

6.8.2 Filling the siphon . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

6.8.3 Filling the system with the automatic refill device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

7 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

7.1 Checklist before commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

7.1.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

7.1.2 Gas circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

7.1.3 Hydraulic circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

7.1.4 Connections for the air and flue gas pipes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

7.1.5 Electrical connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

7.2 Commissioning procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

7.3 Gas settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

7.3.1 Adjusting to a different gas type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

7.3.2 Fan speeds for overpressure applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71

7.3.3 Checking/setting combustion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72

7.3.4 Basic setting for the gas/air ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

7.4 Final instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

7.4.1 Saving the commissioning settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

8 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77

8.1 Control panel description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

8.1.1 Description of the components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

8.1.2 Description of the home screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77

8.1.3 Description of the main menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

8.1.4 Definition of zone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79

8.1.5 Definition of activity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

8.2 Use of the control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

8.2.1 Accessing the installer level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79

8.2.2 Changing the display settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

8.2.3 Changing the name and symbol of a zone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

8.2.4 Changing the name of an activity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

8.2.5 Setting the installer details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .80

8.2.6 Adjusting the heating curve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

8.2.7 Activating the automatic (re)filling unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

8.2.8 Activating the screed drying program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

8.3 Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

8.4 Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

8.5 Frost protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

9 Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

9.1 Setting the parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

Page 4

Contents

4 AMC 7686707 - v.01 - 06092018

9.2 List of parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

9.2.1 CU-GH08 control unit settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .85

9.3 Setting the maximum heat input for CH operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

9.4 Settings SCB-10 print . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

9.4.1 Setting the 0-10 Volt input function of SCB-10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

9.4.2 Analogue temperature regulation (°C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .91

9.4.3 Configuring a DHW tank with two sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

9.5 Reading out measured values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

9.6 List of measured values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

9.6.1 CU-GH08 control unit counters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

9.6.2 CU-GH08 control unit signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

9.6.3 Status and sub-status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

9.7 Resetting or restoring settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

9.7.1 Resetting the configuration numbers CN1 and CN2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

9.7.2 Carrying out an auto-detect for the CAN matrix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .99

9.7.3 Restoring the commissioning settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

9.7.4 Resetting to factory settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

10 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100

10.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100

10.2 Standard inspection and maintenance operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100

10.2.1 Checking the water pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100

10.2.2 Checking the expansion vessel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100

10.2.3 Checking the ionisation current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100

10.2.4 Checking the draw-off capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

10.2.5 Check the flue gas outlet/air supply connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .101

10.2.6 Checking the combustion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

10.2.7 Checking the automatic air vent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

10.2.8 Checking the safety valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

10.2.9 Cleaning the siphon . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102

10.2.10 Checking the burner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

10.3 Specific maintenance work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

10.3.1 Opening boiler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

10.3.2 Replacing the ionisation/ignition electrode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

10.3.3 Cleaning the plate heat exchanger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

10.3.4 Cleaning the water filter cartridge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106

10.3.5 Replacing the three-way valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .107

10.3.6 Replacing the non-return valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108

10.3.7 Finalising work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108

10.3.8 Replacing the control PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .109

10.3.9 Replacing the CB-03 PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110

10.3.10 Updating the control panel firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110

10.4 Refilling the system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .111

10.4.1 Refilling the system with the automatic refill device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .111

10.4.2 Activating the automatic refill device (if fitted) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112

10.4.3 Topping up the system (manually) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .112

11 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .113

11.1 Error codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113

11.1.1 Warning codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .113

11.1.2 Control unit blocking codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115

11.1.3 Control unit locking codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117

11.2 Error memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120

11.2.1 Reading out and clearing the error memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120

12 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .122

12.1 Disposal and recycling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122

13 Spare parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123

13.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123

13.2 Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124

13.3 Spare parts list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127

14 Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130

14.1 EC declaration of conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .130

Page 5

1 Safety

7686707 - v.01 - 06092018 AMC 5

1.1 General safety instructions

1 Safety

Danger If you smell gas:

1. Do not use naked flames, do not smoke and do not operate electrical contacts or switches (doorbell, lighting, motor, lift etc).

2. Shut off the gas supply.

3. Open the windows.

4. Trace possible leaks and seal them off immediately.

5. If the leak is upstream of the gas meter, notify the gas company.

Danger If you smell flue gases:

1.2

1. Switch the boiler off.

2. Open the windows.

3. Trace possible leaks and seal them off immediately.

Caution After maintenance or repair work, check the entire heating installation to ensure that there are no leaks.

Recommendations

Warning Installation and maintenance of the boiler must be carried out by a qualified installer in accordance with local and national regulations.

Warning If the mains lead is damaged, it must be replaced by the original manufacturer, the manufacturer's dealer or another suitably skilled person to prevent hazardous situations from arising.

Warning Always disconnect the mains supply and close the main gas tap when working on the boiler.

Warning Check the entire system for leaks after maintenance and servicing work.

Page 6

1 Safety

6 AMC 7686707 - v.01 - 06092018

Caution

Make sure the boiler can be reached at all times. The boiler must be installed in a frost-free area. If the power cord is permanently connected, you must always install a main bipolar switch with an opening gap of at least 3 mm (EN 60335-1). Drain the boiler and central heating system if you are not going to use your home for a long time and there is a chance of frost. The frost protection does not work if the boiler is out of operation. The boiler protection only protects the boiler, not the system. Check the water pressure in the system regularly. If the water pressure is lower than 0.8 bar, the system must be topped up (recommended water pressure between 1.5 and 2 bar).

1.3

Important Keep this document near to the boiler.

Important Only remove the casing for maintenance and repair operations. Refit all panels when maintenance work and servicing are complete.

Important Instruction and warning labels must never be removed or covered and must be clearly legible throughout the entire service life of the boiler. Damaged or illegible instructions and warning stickers must be replaced immediately.

Important Modifications to the boiler require the written approval of De Dietrich.

Liabilities

1.3.1 Manufacturer's liability

Our products are manufactured in compliance with the requirements of the various Directives applicable. They are therefore delivered with the marking and any documents necessary. In the interests of the quality of our products, we strive constantly to improve them. We therefore reserve the right to modify the specifications given in this document.

Page 7

1 Safety

7686707 - v.01 - 06092018 AMC 7

Our liability as manufacturer may not be invoked in the following cases:

Failure to abide by the instructions on installing and maintaining the appliance. Failure to abide by the instructions on using the appliance. Faulty or insufficient maintenance of the appliance.

1.3.2 Installer's liability

The installer is responsible for the installation and initial commissioning of the appliance. The installer must observe the following instructions:

Read and follow the instructions given in the manuals provided with the appliance. Install the appliance in compliance with prevailing legislation and standards. Carry out initial commissioning and any checks necessary. Explain the installation to the user. If maintenance is necessary, warn the user of the obligation to check the appliance and keep it in good working order. Give all the instruction manuals to the user.

1.3.3 User's liability

To guarantee optimum operation of the system, you must abide by the following instructions:

Read and follow the instructions given in the manuals provided with the appliance. Call on a qualified professional to carry out installation and initial commissioning. Get your installer to explain your installation to you. Have the required inspections and maintenance carried out by a qualified installer. Keep the instruction manuals in good condition close to the appliance.

Page 8

2 About this manual

8 AMC 7686707 - v.01 - 06092018

2 About this manual

2.1 General

This manual is intended for the installer of a AMC boiler.

Important The manual is also available on our internet site.

2.2

2.3

Additional documentation

The following documentation is available in addition to this manual:

User manual

Symbols used

2.3.1 Symbols used in the manual

This manual uses various symbols to draw attention to special instructions. We do this to improve user safety, to prevent problems and to guarantee correct operation.

Danger Risk of dangerous situations that may result in serious personal injury.

Warning Risk of dangerous situations that may result in minor personal injury.

Caution Risk of material damage.

Important Please note: important information.

See Reference to other manuals or pages in this manual.

Page 9

3 Technical specifications

7686707 - v.01 - 06092018 AMC 9

3 Technical specifications

3.1 Homologations

3.1.1 Certifications

Tab.1 Certifications

CE identification number PIN 0063CR3604

Class NOx

(1)

Type of connection B23, B

(1) EN 15502–1

3.1.2 Unit categories

Tab.2 Unit categories

Country Category Gas type Connection pressure (mbar)

Ireland II

2H3B/P

G20 (H gas) G30/G31 (butane/propane)

13(X)

(10)3(X)

23P

, C

33(X)

, C

20 30

, B

(12)3(X)

, C

43P

, C

53(X)

, C

63(X)

, C

93(X)

3.1.3 Directives

In addition to the legal requirements and guidelines, the supplementary guidelines in this manual must also be followed.

Supplements or subsequent regulations and guidelines that are valid at the time of installation shall apply to all regulations and guidelines specified in this manual.

3.1.4 Factory test

Before leaving the factory, each boiler is optimally set and tested for:

Electrical safety. Adjustment of (O2).

Domestic hot water function (For combi-boilers only). Water tightness. Gas tightness. Parameter setting.

3.2

Tab.3 General

AMC 15 25 25/28 MI 35

Nominal output (Pn) for central heat ing operation (80 °C/60 °C)

Nominal output (Pn) for central heat ing operation (50/30 °C)

Nominal output (Pn) for DHW opera tion

Nominal input (Qnh) central heating operation (Hi)

Nominal input (Qnh) for central heat ing operation (Hi) Propane

Technical data

min-max

(1)

min–max

(1)

min–max

(1)

min–max

(1)

kW 3.0 - 14.9

14.9

kW 3.4 - 15.8

15.8

kW -

kW 3.1 - 15.0

15.0

5.0 - 24.8

24.8

5.6 - 25.5

25.5

5.2 - 25.0

25.0

5.0 - 24.8

19.9

5.6 - 25.5

20.5

5.0 - 27.8

27.8

5.2 - 25.0

20.1

7.0 - 34.5

7.9 - 35.6

7.3 - 34.8

min-max 5.2 - 15.0 5.9 - 25.0 5.9 - 25.0 7.3 - 34.8

34.5

35.6

34.8

Page 10

3 Technical specifications

10 AMC 7686707 - v.01 - 06092018

AMC 15 25 25/28 MI 35

Nominal input (Qnh) central heating operation (Hs)

Nominal input (Qnh) for central heat ing operation (Hs) Propane

Nominal input (Qnw) for DHW opera tion (Hi)

Nominal input (Qnw) for DHW opera tion (Hi) Propane

Nominal input (Qnw) for DHW opera tion (Hs)

Nominal input (Qnw) for DHW opera tion (Hs) Propane

Full load central heating efficiency

min–max

(1)

min-max

(1)

min–max

(1)

min–max kW -

min–max

(1)

min–max kW -

kW 3.4 - 16.7

16.7

5.8 - 27.8

27.8

5.8 - 27.8

22.3

8.1 - 38.7

5.8 - 16.7 6.5 - 27.8 6.5 - 27.8 8.1 - 38.7

kW -

5.2 - 28.0

28.0

5.9 - 28.0 -

5.8 - 31.1

31.1

6.5 - 31.1 -

% 99.3 99.2 99.2 99.1

(Hi) (80/60 °C) (92/42/EEC)

Full load central heating efficiency

% 105.3 102.0 102.0 102.2

(Hi) (50°C/30°C) (EN15502)

Part load central heating efficiency

% 94.9 96.1 96.1 96.3

(Hi) (return temperature 60°C)

Part load central heating efficiency

% 110.2 110.1 110.1 110.6 (Hi) (92/42/EEC) (return temperature 30°C)

Full load central heating efficiency

% 89.4 89.3 89.3 89.2 (Hs) (80/60°C) (92/42/EEC)

Full load central heating efficiency

% 94.8 91.9 91.9 92.0 (Hs) (50°C/30°C) (EN15502)

Part load central heating efficiency

% 85.5 86.5 86.5 86.7 (Hs) (return temperature 60°C)

Part load central heating efficiency

% 99.2 99.1 99.1 99.6 (Hs) (92/42/EEC) (return temperature 30°C)

(1) Factory setting

38.7

Tab.4 Details of gas and flue gas

AMC 15 25 25/28 MI 35

Gas inlet pressure G20 (H gas) min-max mbar 17 - 25 17 - 25 17 - 25 17 - 25

Gas consumption G20 (H gas) min-max

NOx annual emissions G20 (H gas)

O2 = 0% ppm 17 16 16 27

m3/h

0.33 - 1.59 0.55 - 2.65 0.55 - 2.96 0.77 - 3.68

EN15502

NOx annual emissions G20 (H gas)

mg/kWh 30 28 28 45

EN15502

NOx annual emissions G20 (H gas)

mg/kWh 27 25 25 41

EN15502

Flue gas quantity min-max kg/h

g/s

5.5 - 25.3

1.5 - 7.0

9.2 - 42.1

2.6 - 11.7

9.2 - 47.1

2.6 - 13.1

12.7 - 57.4

3.5 - 15.9

Flue gas temperature min-max °C 30 - 59 30 - 74 30 - 81 32 - 79

Maximum counter pressure Pa 80 120 130 140

Tab.5 Central heating circuit data

AMC 15 25 25/28 MI 35

Water content l 1.7 1.7 1.7 2.3

Water operating pressure min bar 0.8 0.8 0.8 0.8

Water operating pressure (PMS) max bar 3.0 3.0 3.0 3.0

Water temperature max °C 110.0 110.0 110.0 110.0

Operating temperature max °C 90.0 90.0 90.0 90.0

Page 11

3 Technical specifications

7686707 - v.01 - 06092018 AMC 11

AMC 15 25 25/28 MI 35

Central heating total dynamic head

mbar 585 355 355 231

(ΔT = 20K)

Casing-related losses ΔT 30°C

ΔT 50°C

W 78

136

Tab.6 DHW circuit data

AMC 25/28 MI

Specific hot water flow rate D (60°C) l/min 8.2

Specific hot water flow rate D (40°C) l/min 14.5

Pressure difference on tap water side mbar 329

Flow rate threshold

(1)

max l/min 1.5

Water content l 0.33

Operating pressure (Pmw) bar 8

Minimum flow l/min 2

Score stars 3

(1) Minimum amount of water that comes out of the tap to make the boiler start.

Tab.7 Electrical data

AMC 15 25 25/28 MI 35

Supply voltage V~ 230 230 230 230

Power consumption – full load max

(1)

W 67

77 77

84 68

121

93 93

Power consumption – part load max W 27 26 26 27

Power consumption – standby max W 4 4 4 4

Electrical protection index

(2)

Fuses

(1) Factory setting. (2) Splashproof; under certain conditions, the boiler may be installed in damp areas, such as bathrooms. (3) The fuse is located on the CU-GH08 control unit

IP IPX5D IPX5D IPX5D IPX5D

(3)

CU-GH

A 2.5 2.5 2.5 2.5

Tab.8 Other data

AMC 15 25 25/28 MI 35

Minimum mounting weight

(1)

kg 36 36 38 31

Total weight (empty) kg 38 38 40 33

Average acoustic level at a distance of one metre from the boiler (LPA)

Central heating op

dB(A) 37

44 eration DHW oper ation

(1) Without front panel.

Tab.9 Technical parameters

AMC 15 25 25/28 MI 35

Condensing boiler Yes Yes Yes Yes

Low-temperature boiler

(1)

No No No No

B1 boiler No No No No

Cogeneration space heater No No No No

Combination heater No No Yes No

Rated heat output

Prated

kW 15 25 25 35

Page 12

3 Technical specifications

12 AMC 7686707 - v.01 - 06092018

AMC 15 25 25/28 MI 35

Useful heat output at nominal heat

kW 14.9 24.8 24.8 34.5

output and high temperature oper

(2)

ation

Useful heat output at 30% of rated

kW 5.0 8.3 8.3 11.6

heat output and low temperature

(1)

regime

Seasonal space heating energy effi

% 94 94 94 95

ciency

Useful efficiency at rated heat out put and high temperature regime

Useful efficiency at 30% of rated

(2)

% 89.5 89.4 89.4 89.3

% 99.3 99.2 99.2 99.6

heat output and low temperature

(1)

regime

Auxiliary electricity consumption

Full load

Part load

Standby mode

elmax elmin P

kW 0.027 0.037 0.037 0.050

kW 0.018 0.017 0.017 0.018

kW 0.004 0.004 0.004 0.004

Other items

Standby heat loss

Ignition burner power consumption

Annual energy consumption

Sound power level, indoors

Emissions of nitrogen oxides NO

stby

ign

kW 0.078 0.078 0.078 0.054

kW - - - -

GJ 46 76 76 105

dB(A) 45 51 51 53

mg/kWh 27 25 25 41

Domestic hot water parameters

Declared load profile - - A -

Daily electricity consumption

Annual electricity consumption

Water heating energy efficiency

Daily fuel consumption

Annual fuel consumption

(1) Low temperature means 30°C for condensing boilers, 37°C for low temperature boilers and 50°C (at heater inlet) for other heating appli

ances.

(2) High temperature operation means 60°C return temperature at heater inlet and 80°C feed temperature at heater outlet.

elec

AEC ƞ

fuel

AFC

kWh - - 0.169 -

kWh - - 37 -

% - - 82.4 -

kWh - - 22.045 -

GJ - - 17 -

See See the back of this manual for contact information.

Page 13

3.3 Dimensions and connections

AD-0001436-02

195

265

132

199

266

331

690

450

225

140

150

255

7686707 - v.01 - 06092018 AMC 13

Fig.1 Dimensions

3 Technical specifications

Tab.10 Connections

AMC 15 25 25/28 MI 35

Connecting the flue gas outlet Ø 60 mm Ø 60 mm Ø 60 mm Ø 60 mm

Connecting the air supply Ø 100 mm Ø 100 mm Ø 100 mm Ø 100 mm

Hose of safety valve Ø 25 mm Ø 25 mm Ø 25 mm Ø 25 mm

Condensation outlet Ø 25 mm Ø 25 mm Ø 25 mm Ø 25 mm

Heating circuit flow (primary circuit) G¾" G¾" G¾" G¾"

Domestic hot water outlet - - G½" -

Heating circuit flow (secondary circuit) G½" G½" - G½"

Gas connection G½" G½" G½" G½"

Domestic cold water inlet - - G½" -

Heating circuit return (secondary circuit) G½" G½" - G½"

Heating return (primary circuit) G¾" G¾" G¾" G¾"

Page 14

AD-0001240-05

1 2

X116

51 6

3 1

X112

1 3

X113

X111

4 2 3 1

X11

X91

1 2 4 5

2 3 8 7 4 10 13 15

2 2

X115

X114

1 2

X113

X10

4 7 2 1096

GN/ YW

3 1

2 3

X41

2 1 3

1 3 2

X121

1 2

GN/ YW

153

3 4

X21

GN/ YW

1 23

X22

3 4 1

X91

1 2 3

2 3

CB-03

7 81 2 3 4 5 6

R-Bus ToutBL RL

9 10

Tdhw

X136

1 3 4 52

X131

1 3 4 52 6

X13

1 32 54 1 32 54

321

X134

321

X135

321

X132

6 7 8 9 10 11

Spare

X14

1 32

321

X141

2019

18171615

141312

X11

X13

X12

X10

X14

2 31

X32

1 32

X33

2 31

13 X31

N L

230V, 50Hz

4 132

1 3 42

X01

GN/ YW

3 Technical specifications

14 AMC 7686707 - v.01 - 06092018

3.4 Electrical diagram

Fig.2 Electrical diagram

Power supply (P) On/off switch (S) Automatic refill device

4 5 6

Control unit (CU-GH08) Display (DIS) Spare CAN-Bus connection

1 2 3

Page 15

3 Technical specifications

7686707 - v.01 - 06092018 AMC 15

Service connection

Fan supply

CB-03 PCB

Ignition transformer (IT)

Ionisation/ignition electrode (E)

Gas combination block (GB)

Three-way valve (3WV)

Circulation pump (CH)

Flow sensor (FTS)

Return sensor (TR)

Tap water temperature sensor (TDHW)

Fan control (PWM)

19 20 21 22

GN/YW

GY RD

Flow sensor (FS) Pressure sensor (PS) PWM pump Storage information (CSU) Black Blue Brown Green/Yellow Grey Red White

Page 16

4 Description of the product

16 AMC 7686707 - v.01 - 06092018

4 Description of the product

The AMC boiler is delivered with a combination of the control panel, control unit and extension PCB. The contents of this manual are based on the following software and navigation information:

Tab.11 Software and navigation information

Name visible in display Software version

Boiler AMC CU-GH08 1.4

Control panel Diematic Evolution MK3 1.29

PCB SCB-10 SCB-10 0.5

4.1

General description

4.2 Operating principle

The AMC boiler is a wall-mounted gas boiler with the following characteristics:

High-efficiency heating Low polluting emissions Automatic refill device High-quality electronic control panel Easier installation and connection thanks to the mounting frame delivered with the appliance.

The following boiler types are available:

Type Mode

AMC 15 AMC 25 AMC 35

AMC 25/28 MI Heating and production of domestic hot water.

4.2.1

The boiler has an automatic refill device located under the boiler.

The automatic refill device will refill the central heating system whenever the water pressure is lower than the set minimum. Refilling can be automatic or semi-automatic. On the semi-automatic setting, refilling will only start after confirmation by the user. The automatic refill device can also be used to fill an empty system.

If refilling takes too long or occurs too often (e.g. because the system leaks), a warning code will appear on the display and refilling will stop.

Automatic refill device

Heating only (option of producing domestic hot water using a separate hot water appliance).

4.2.2

The energy-efficient, modulating circulation pump is controlled by the control unit based on ΔT. The graphs show the total dynamic head at various outputs.

Circulation pump

Important The benchmark for the efficient circulation pumps is EEI ≤ 0.20.

Page 17

Fig.3 AMC 15 - 25 - 25/28 MI

AD-3000862-02

1600140012001000600 800400200

100

200

300

400

500

600

700

355

25 kW

1080

494

20 kW

860

585

15 kW

650

640

10 kW

430

AD-3000863-02

1600140012001000600 800400200

100

200

300

400

500

600

700

231

35 kW

1500

387

30 kW

1290

508

25 kW

1080

594

20 kW

860

7686707 - v.01 - 06092018 AMC 17

4 Description of the product

Total dynamic head CH (mbar)

Fig.4 AMC 35

Total dynamic head CH (mbar)

Water flow rate (l/h)

4.2.3 Water flow

The modulating control of the boiler limits the maximum temperature difference between the flow and return and the maximum rise velocity of the flow temperature. In addition, a heat exchanger temperature sensor is mounted to monitor the minimum water flow. As a result, the boiler is virtually unaffected by low water flow.

Page 18

AD-0000428-01

2 3 4 5

AD-3000830-01

2 3 4 5

4 Description of the product

18 AMC 7686707 - v.01 - 06092018

4.2.4 Skeleton diagram

Fig.5 AMC 15 - 25

Fig.6 AMC 35

Heat exchanger (CH)

Heating circuit flow (primary circuit)

Heating circuit flow (secondary circuit)

Heating return (secondary circuit)

Heating return (primary circuit)

Three-way valve

Circulation pump (CH)

Expansion vessel

Heat exchanger (CH)

Heating circuit flow (primary circuit)

Heating circuit flow (secondary circuit)

Heating return (secondary circuit)

Heating return (primary circuit)

Three-way valve

Circulation pump (CH)

Page 19

AD-0000419-01

4 5 6 7

AD-0001371-02

1 23

4 Description of the product

7686707 - v.01 - 06092018 AMC 19

Fig.7 AMC 25/28 MI

4.3

Main components

Fig.8 AMC 15 - 25

Heat exchanger (CH)

Hydroblock

Plate heat exchanger (DHW)

Central heating circuit flow

Domestic hot water outlet

Domestic cold water inlet

Central heating circuit return

Three-way valve

Circulation pump (CH)

Expansion vessel

Flue gas outlet

Casing/air box

Flue gas measuring point

Mixing tube

Hydraulic flow pipe

Air intake silencer

Combined gas valve unit

Automatic air vent hose

Hydroblock, flow side

Housing for PCBs

Safety valve hose

Siphon

Instrument box

Circulation pump

Hydroblock, return side

Return pipe

Three-way valve

Condensate collector

Fan

Heat exchanger (CH)

Expansion vessel

Ionisation/ignition electrode

Air supply

Page 20

AD-0001372-02

AD-0001373-03

1 24

4 Description of the product

20 AMC 7686707 - v.01 - 06092018

Fig.9

AMC 35

Fig.10 AMC 25/28 MI

4.4

4.5

Control panel

Standard delivery

Flue gas outlet

Casing/air box

Flue gas measuring point

Mixing tube

Hydraulic flow pipe

Air intake silencer

Combined gas valve unit

Automatic air vent hose

Hydroblock, flow side

Housing for PCBs

Safety valve hose

Siphon

Instrument box

Circulation pump

Hydroblock, return side

Return pipe

Three-way valve

Condensate collector

Fan

Heat exchanger (CH)

Ionisation/ignition electrode

Air supply

Flue gas outlet

Casing/air box

Flue gas measuring point

Mixing tube

Hydraulic flow pipe

Air intake silencer

Combined gas valve unit

Automatic air vent hose

Hydroblock, flow side

Housing for PCBs

Safety valve hose

Siphon

Instrument box

Circulation pump

Hydroblock, return side

Return pipe

Plate heat exchanger (DHW)

Three-way valve

Condensate collector

Fan

Heat exchanger (CH)

Expansion vessel

Ionisation/ignition electrode

Air supply

The AMC boiler is supplied with a Diematic Evolution control panel.

For more information, see Control panel description, page 77

The delivery includes:

The boiler, fitted with a three-core cable Mounting frame with automatic refill device Connection kit including cable glands and clamping rings

Page 21

4 Description of the product

7686707 - v.01 - 06092018 AMC 21

Condensate drain hose for siphon and safety valve Condensates collector Seal plates for sealing off the lines for the secondary heating circuit if it is not being used Documentation Mounting template Sticker: This central heating unit is set for ...

This manual only deals with the standard scope of supply. For the installation or mounting of any accessories supplied with the boiler, please refer to the mounting instructions delivered with the accessories in question.

Page 22

AD-0001197-01

AD-0001376-02

450

min.10

min. 250

690

5 Before installation

22 AMC 7686707 - v.01 - 06092018

5 Before installation

5.1 Installation regulations

Warning The boiler must be installed by a qualified installer in accordance with local and national regulations.

5.2

Choice of the location

Fig.11 Position of data plate

Fig.12 Installation area

5.2.1 Data plate

The data plate on top of the boiler states the boiler serial number and important boiler specifications such as the model and gas category. The configuration numbers CN1 and CN2 codes are also stated on the data plate.

5.2.2 Location of the boiler

Use the guidelines and the required installation space as a basis for determining the correct place to install the boiler. When determining the correct installation area, take account of the permitted position of the flue gas outlet and/or air supply outlet. Ensure that there is sufficient space around the boiler for good access and ease of maintenance. Mount the boiler onto a flat surface.

Danger It is forbidden to store, even temporarily, combustible products and substances in the boiler or near the boiler.

Warning

Fix the appliance to a solid wall capable of bearing the weight of the boiler when full of water and fully equipped. Do not place the appliance above a heat source or a cooking appliance. Do not locate the boiler in direct or indirect sunlight.

Caution

The boiler must be installed in a frost-free area. An earthed electrical connection must be available close to the boiler. A connection to the drain must be present for the condensate drain close to the boiler.

Page 23

5.2.3 Ventilation

AD-0001377-02

min. 550

min.550

min. 250

50 (2)

min. 250

100 min. (1)

7686707 - v.01 - 06092018 AMC 23

5 Before installation

Fig.13

Space for ventilation

(1)

Distance between the front of the boiler and the internal wall of the casing.

(2)

Space on either side of the boiler.

If the boiler is installed in a closed casing, observe the minimum dimensions indicated. Also allow for openings to prevent the following hazards:

Accumulation of gas Heating of the casing

Minimum cross section of the openings: S1 + S2 = 150 cm

Page 24

AD-0001379-02

76499

0 2

-01

152,5

154,5

216

2 20

220

6,5

120

432

450

6565

1 95

690

487

715

3 6

100

10 (1x)

(1x)

104,5

04,5

0 (1 x

)

1 0

(1x)

6 Installation

24 AMC 7686707 - v.01 - 06092018

6 Installation

6.1 General

Warning The boiler must be installed by a qualified installer in accordance with local and national regulations.

6.2

Preparation

Fig.14 Installing the mounting frame

6.2.1 Installing the mounting frame

The boiler is supplied with a mounting template.

Proceed as follows to hang the mounting frame:

1. Attach the mounting template of the boiler to the wall using adhesive tape.

Warning

Use a level on the mounting frame to check whether the mounting template is perfectly horizontal. Protect the boiler against building dust and cover the flue gas outlet and air supply connection points. Only remove this cover to assemble the relevant connections.

2. Drill 3 holes of Ø 10 mm.

Important The extra holes are intended for use in the event that one of the two fastening holes is not suitable for correct fastening of the plug.

3. Fit the Ø 10 mm plugs.

4. Attach the mounting frame to the wall with the Ø 8 mm screws supplied

5. Remove the level from the mounting frame.

Page 25

6.2.2 Positioning the boiler

AD-0001380-02

AD-0001381-02

AD-3001203-01

7686707 - v.01 - 06092018 AMC 25

6 Installation

Fig.15 Removing boiler protection

Fig.16 Fitting gaskets

1. Remove the black protective strip on the underside of the boiler.

2. Remove the dust caps from all of the hydraulic inlets and outlets on the boiler.

Caution The valve of the filling loop must be closed.

3. Fit a fibre gasket to each joint on the valve plate.

Fig.17 Fitting the boiler

4. Position the boiler above the mounting frame. Gently lower the boiler.

5. Tighten the valve nuts on the boiler.

Page 26

AD-0001383-03

AD-0001384-03

6 Installation

26 AMC 7686707 - v.01 - 06092018

6.3 Hydraulic connections

6.3.1 Rinsing the system

Installation must be carried out in accordance with the prevailing regulations, codes of practice and the recommendations in this manual.

Before a new boiler can be connected to an existing or new system, the entire system must be thoroughly cleaned and flushed. This step is absolutely crucial. The flushing helps to remove residue from the installation process (weld slag, fixing products etc.) and accumulations of dirt (silt, mud etc.)

Important Flush the system with a volume of water equivalent to at least three times the volume of the system. Flush the DHW pipes with a volume of water equivalent to at least 20 times the volume of the pipes.

Fig.18 Connecting the heating circuit

6.3.2

Water flow

The boiler's modulating control system limits the maximum difference in temperature between the heating flow and return, and the maximum speed at which the flow temperature increases. In this way, the boiler does not require a minimum water flow rate.

Important In the case of a combi boiler in an installation in which the flow can be fully disconnected from the return (e.g. by using thermostatic valves), a bypass pipe should be fitted or the expansion vessel placed on the central heating flow pipe.

6.3.3

Connection of the heating circuit

1. Fit the inlet pipe for CH water to the CH return connection .

2. Fit the outlet pipe for CH water to the CH flow connection .

Caution

Carry out any welding work required at a safe distance from the boiler or before the boiler is fitted. If using synthetic pipes, follow the manufacturer's (connection) instructions.

6.3.4 Connection of the water circuit for domestic use

Fig.19 Connecting water circuit for

domestic use

1. Connect the cold water inlet pipe to the domestic cold water connection .

2. Connect the domestic hot water outlet pipe to the domestic hot water connection

Page 27

Caution

AD-0001385-04

AD-0001207-03

7686707 - v.01 - 06092018 AMC 27

If using synthetic pipes, follow the manufacturer's (connection) instructions. Carry out any welding work required at a safe distance from the boiler or before the boiler is fitted.

6.3.5 Connecting the secondary heating circuit

6 Installation

Fig.20 Connecting the secondary heating

circuit

Fig.21 Disconnecting the secondary

heating circuit

1. Fit the pipe supplied with the mounting frame to the domestic cold water connection of the automatic (re)fill device.

2. Connect the domestic cold water inlet to this pipe.

3. Fit the inlet pipe for CH water to the CH return connection .

4. Fit the outlet pipe for CH water to the CH flow connection .

Caution

Carry out any welding work required at a safe distance from the boiler or before the boiler is fitted. If using synthetic pipes, follow the manufacturer's (connection) instructions.

6.3.6

Disconnecting the secondary heating circuit

These connections must be closed off if the secondary heating circuit is not connected (solo use of the boiler). To do this, proceed as follows:

Important The blanking plates needed are supplied with the boiler.

1. Remove the secondary heating circuit valves from the mounting frame.

2. Place a blanking plate in the fitting (G½") and install this on the CH return connection .

3. Place a blanking plate in the fitting (G½") and install this on the CH flow connection .

6.3.7 Connecting the expansion vessel

The boiler is fitted as standard with an 12 litre expansion vessel.

If the water volume is greater than 150 litres or the static height of the system exceeds 5 metres, an additional expansion vessel must be fitted. Refer to the table below to determine the expansion vessel required for the system.

Validity terms of the table:

3-bar safety valve Average water temperature: 70°C Flow temperature: 80°C Return temperature: 60°C The filling pressure in the system is lower than or equal to the inflation pressure in the expansion vessel.

Page 28

AD-3001204-01

AD-0001387-03

6 Installation

28 AMC 7686707 - v.01 - 06092018

Tab.12 Volume of the expansion vessel (litres)

Initial pressurinstae of the ex pansion vessel

Volume of the system (litres)

100 125 150 175 200 250 300 > 300

0.5 bar 4.8 6.0 7.2 8.4 9.6 12.0 14.4 Volume of the system x 0.048

1 bar 8.0 10.0

14.0 16.0 20.0 24.0 Volume of the system x 0.080

12.0

)

1.5 bar 13.3 16.6 20.0 23.3 26.6 33.3 39.9 Volume of the system x 0.133

(1) Standard configuration.

6.3.8 Connecting the condensate drain pipe

Fig.22 Connecting the condensate

discharge pipe

6.4 Gas connection

1. Fit a plastic drain pipe of Ø 32 mm or larger, terminating in the drain.

Important Fit a watertrap or siphon in the drain pipe.

2. Insert the condensate collector into the drain pipe.

3. Attach the boiler siphon and safety valve drain hose to the condensate

discharge pipe connection and the safety valve .

4. Slide the hose into the drain pipe.

Caution

Never seal the condensate drain. The drain pipe must slope down at least 30 mm per metre, the maximum horizontal length is 5 metres. Condensed water must not be discharged into a gutter.

For more information, see Filling the siphon, page 66

Warning

Before starting work on the gas pipes, turn off the main gas tap. Before installing, check that the gas meter has sufficient capacity. Take into account the consumption of all appliances. Notify the local energy company if the gas meter has insufficient capacity.

Fig.23 Connecting the gas pipe

1. Fit the gas supply pipe to the gas connection .

2. Fit the gas pipe to the gas tap.

Caution

Always perform welding work at a sufficient distance from the boiler. Remove dirt and dust from the gas pipe.

Important We recommend installing a gas filter to prevent clogging of the gas valve unit.

Page 29

6.5 Air supply/flue gas outlet connections

AD-3000924-01

AD-3000925-01

AD-3000926-01

AD-3000927-01

7686707 - v.01 - 06092018 AMC 29

Tab.13 Types of flue gas connections

Type Principle Description

23P

Room-ventilated version

Without down-draught diverter. Flue gas discharge via the roof. Air from the installation area.

6.5.1 Classification

Important

The installer is responsible ensuring that the right type of flue gas outlet system is used and that the diameter and length are correct. Always use connection materials and roof terminal supplied by the same manufacturer. Consult the manufacturer for compatibility details.

6 Installation

Permitted manufacturers

(1)

Connection material and roof terminal:

Centrotherm Cox Geelen Muelink & Grol Natalini Poujoulat Skoberne Ubbink

13(X)

33(X)

Room-ventilated version

Without down-draught diverter. Joint flue gas discharge via the roof, with guar anteed natural draft. (at all times underpressure in the joint discharge duct) Flue gas discharge rinsed with air, air from the installation area (special construction).

Room-sealed version

Discharge in the outside wall. Inlet opening for the air supply is in the same pressure zone as the discharge (e.g. a com bined outside wall feed-through). Parallel not permitted

Room-sealed version

Flue gas discharge via the roof. Inlet opening for the air supply is in the same pressure zone as the discharge (e.g. a concen tric roof feed-through).

Connection material:

Centrotherm Cox Geelen Muelink & Grol Natalini Poujoulat Skoberne Ubbink

Outside wall terminal and con nection material:

Cox Geelen Muelink & Grol

Roof terminal and connection material

Centrotherm Cox Geelen Muelink & Grol Natalini Poujoulat Skoberne Ubbink

Page 30

AD-3000928-01

AD-3000929-02

AD-3000931-01

6 Installation

30 AMC 7686707 - v.01 - 06092018

Type Principle Description

43P

(2)

Combined air supply and flue gas outlet system (CLV) with overpressure.

Concentric (preferably). Parallel (if concentric is not possible).

Minimum permitted pressure difference between the air supply and the flue gas outlet is -200 Pa (including -100 Pa wind pressure). The channel must be designed for a nominal flue gas temperature of 25°C Place a condensation drain, equipped with a si phon, at the bottom of the channel. Maximum permissible recirculation of 10%. The common outlet should be appropriate for a pressure of at least 200 Pa. The roof feed-through must be designed for this configuration and must cause a draught in the channel. A draught diverter is not permitted.

Important

The fan speed must be adapted for this configuration. Contact us for more information.

53(X)

Connection in different pressure zones

Closed unit. Separate air supply duct. Separate flue gas discharge duct. Discharging into various pressure areas. The air supply and the flue gas outlet must not be placed on opposite walls.

Permitted manufacturers

(1)

Connecting material to the common channel:

Centrotherm Cox Geelen Muelink & Grol Natalini Poujoulat Skoberne Ubbink

Connection material and roof terminal:

Centrotherm Cox Geelen Muelink & Grol Natalini Poujoulat Skoberne Ubbink

(3)

63(X)

93(X)

This type of unit is supplied by the manufacturer

without a supply and discharge system.

Room-sealed version

Air supply and flue gas discharge duct in shaft or ducted:

Concentric. Air supply from existing duct. Flue gas discharge via the roof. Inlet opening for the air supply is in the same pressure zone as the discharge.

When selecting the material, please note the following:

Condensed water must flow back to the appliance The material must be resist ant to the flue gas tempera ture of this appliance. Maximum permissible recir culation of 10%. The air supply and the flue gas outlet must not be placed on opposite walls. Minimum permitted pressure difference between the air supply and the flue gas outlet is -200 Pa (including -100 Pa wind pressure).

Connection material and roof terminal:

Centrotherm Cox Geelen Muelink & Grol Natalini Poujoulat Skoberne Ubbink

Page 31

AD-3000959-01

AD-3000930-01

6 Installation

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Type Principle Description

(10)3(X)

Combined air supply and flue gas outlet system (CLV) with overpressure

Important

The fan speed must be adapted for this configuration. Contact us for more information.

(12)3(X)

Common flue gas outlet and individual air supply (half CLV)

Permitted manufacturers

(1)

Connecting material to the common channel:

Centrotherm Cox Geelen Muelink & Grol Natalini Poujoulat Skoberne Ubbink

Connecting material to the common channel:

Centrotherm Cox Geelen Muelink & Grol Natalini Poujoulat Skoberne Ubbink

Important

The fan speed must be adapted for this configuration. Contact us for more information.

(1) The material must also satisfy the material property requirements from the relevant chapter. (2) EN 15502-2-1: 0.5 mbar suction due to depression (3) See table for shaft or duct requirements

6.5.2

Requirements for shaft for C

Tab.14 Minimum dimensions of shaft or duct

Version (D) Without air supply With air supply

Ø duct □ duct Ø duct □ duct

Rigid 60 mm 110 mm 110 x 110 mm 120 mm 110 x 110 mm

Rigid 80 mm 130 mm 130 x 130 mm 140 mm 130 x 130 mm

Concentric 60/100 mm 120 mm 120 x 120 mm 120 mm 120 x 120 mm

Concentric 80/125 mm 145 mm 145 x 145 mm 145 mm 145 x 145 mm

Page 32

AD-3000330-02

□

AD-3001120-01

EN 14471 - T120 P1 W 1 O50 LI E U0

EN 1856-1 - T120 P1 W VxL40045 G(xx)

6 Installation

32 AMC 7686707 - v.01 - 06092018

Fig.24 Minimum dimensions of shaft or

duct

Fig.25 Sample string

Important The shaft must comply with the air density requirements of the local regulations.

Important

Always clean shafts thoroughly when using lining pipes and/or an air supply connection. It must be possible to inspect the lining duct.

6.5.3 Material

Use the string on the flue gas outlet material to check whether it is suitable for use on this appliance.

EN 14471 of EN 1856–1: The material is CE approved according to this standard. For plastic this is EN 14471, For aluminium and stainless steel this is EN 1856-1.

T120: The material has temperature class T120. A higher number is also allowed, but not lower.

P1: The material falls into pressure class P1. H1 is also allowed.

W: The material is suitable for draining condensation water (W=’wet’). D is not allowed (D=’dry’).

E: The material falls into fire resistance class E. Class A to D are also allowed, F is not allowed. Only applicable to plastic.

Tab.15 Overview of material properties

Version Flue gas outlet Air supply

Material Material properties Material Material properties

Single-wall, rigid

Plastic Stainless steel Thick-walled, aluminium

(1) according to EN 14471 (2) according to EN 1856 (3) according to EN 13501-1

Warning

The coupling and connection methods may vary depending on the manufacturer. It is not permitted to combine pipes, coupling and connection methods from different manufacturers. This also applies to roof feed-throughs and common channels. The materials used must comply with the prevailing regulations and standards.

(1)

(2)

With CE marking

(2)

Temperature class T120 or higher Condensate class W (wet)

Plastic Stainless steel Aluminium

With CE marking Pressure class P1 or H1 Fire resistance class E or bet

(3)

ter Pressure class P1 or H1 Fire resistance class E or bet

(3)

ter

Page 33

6.5.4 Dimensions of flue gas outlet pipe

AD-3000962-01

ød

øD

AD-0001356-01

7686707 - v.01 - 06092018 AMC 33

Warning The pipes connected to the flue gas adapter must satisfy the following dimension requirements.

6 Installation

Fig.26 Dimensions of concentric

connection

External dimensions of flue gas outlet pipe

External dimensions of air supply pipe

Length difference between flue gas outlet pipe and air supply pipe

Tab.16 Dimensions of pipe

d1 (min-max) D1 (min-max)

(1)

(min-max)

60/100 mm 59.3 - 60.3 mm 99 - 100.5 mm 0 - 15 mm

80/125 mm 79.3 - 80.3 mm 124 - 125.5 mm 0 - 15 mm

(1) Shorten the inner pipe if the length difference is too great.

6.5.5 Length of the air and flue gas pipes

The maximum length of the flue gas outlet and air supply channel vary depending on the appliance type; consult the relevant chapter for the correct lengths.

Important

When using bends, the maximum chimney length (L) must be shortened according to the reduction table. For adaptation to another diameter use approved transitions

Fig.27 Room-ventilated version

Room-ventilated model (B23, B

Length of the outlet duct, including roof feed-through

23P

, B33)

Connecting the flue gas outlet Connecting the air supply

With a room-ventilated version, the air supply opening stays open; only the flue gas outlet opening is connected. This will ensure that the boiler obtains the necessary combustion air directly from the installation area. Use adapters when using air supply and flue gas outlet pipes with any other diameter.

Caution

The air supply opening must stay open. The installation area must be equipped with the necessary air supply openings. These openings must not be obstructed or shut off.

Tab.17 Maximum chimney length (L)

Diameter 60 mm 70 mm 80 mm 90 mm

(1)

AMC 15

AMC 25

AMC 25/28 MI

AMC 35

(1) While maintaining maximum length, additional 5 times 90º or 10 times 45º

bends can be used.

33 m 40 m 40 m

19 m 35 m 40 m

16 m 30 m 40 m

13 m 25 m 40 m 40 m

(1)

40 m

(1)

Page 34

AD-0001357-01

L =

AD-0001212-01

L = +

6 Installation

34 AMC 7686707 - v.01 - 06092018

Fig.28 Room-sealed version

Fig.29 Different pressure zones

Room-sealed model (C

Total length of the flue gas outlet and air supply duct

13(X)

, C

33(X)

, C

63(X)

, C

93(X)

)

Connecting the flue gas outlet Connecting the air supply

With a room-sealed version, both the flue gas outlet and the air supply openings are connected (concentrically). Refer to the table to determine the maximum pipe length of the flue gas outlet pipes in the room-sealed version.

Tab.18 Maximum chimney length (L)

Diameter 60/100 mm

AMC 15

AMC 25

AMC 25/28 MI

AMC 35

(1) Retaining the maximum length, it is possible to use an extra 5 x 90º or 10 x

45º elbows.

20 m 20 m

13 m 20 m

11 m 20 m

9 m 20 m

Connection in different pressure areas (C

Total length of the flue gas outlet and air supply duct

53(X)

80/125 mm

)

(1)

Connecting the flue gas outlet Connecting the air supply

Important An 80/80 mm flue gas adapter (accessory) must be fitted for this connection.

A combustion air supply and flue gas outlet are possible in different pressure areas and semi-CLV systems, The maximum permitted height difference between the combustion air supply and the flue gas outlet is 36 m.

Important Contact us for more information on usage in coastal areas.

Tab.19 Maximum chimney length (L)

Diameter 60 mm 70 mm 80 mm

AMC 15

AMC 25

AMC 25/28 MI

19 m 40 m 40 m

12 m 25 m 40 m

10 m 22 m 40 m 40 m

(1)

90 mm

40 m

(1)

AMC 35 7 m 14 m 37 m 40 m

(1) Retaining the maximum length, it is possible to use an extra 5 x 90º or 10 x

45º elbows.

Page 35

AD-0001357-01

L =

AD-0001212-01

L = +

6 Installation

7686707 - v.01 - 06092018 AMC 35

Fig.30 Room-sealed version

Fig.31 Different pressure zones

CLV overpressure system (C

Total length of the flue gas outlet and air supply duct

43P

, C

(10)3(X)

, C

(12)3(X)

concentric)

Connecting the flue gas outlet Connecting the air supply

For a concentric version of C

it is allowed to add 2 m extra to the

(12)3(X)

length of the flue gas discharge.

Tab.20 Maximum chimney length (L)

Diameter 60/100 mm

AMC 15

AMC 25

AMC 25/28 MI

17 m

11 m

9 m

80/125 mm

(1)

20 m

(1)

20 m

(1)

20 m

AMC 35 6 m 20 m

(1) Retaining the maximum length, it is possible to use an extra 5 x 90º or 10 x

45º elbows.

Half CLV overpressure system ( C

Total length of the air supply duct and flue gas outlet duct to the

(12)3(X)

parallel)

common part Connecting the flue gas outlet

Connecting the air supply

(1)

Important The maximum permitted height difference between the combustion air supply and the flue gas outlet is 36 m.

Tab.21 Maximum chimney length (L)

Diameter 60/100 mm

AMC 15

AMC 25

AMC 25/28 MI

22 m

12 m

80/125 mm

40 m

(1)

AMC 35 7 m 40 m

(1) Retaining the maximum length, it is possible to use an extra 5 x 90º or 10 x

45º elbows.

Reduction table

Tab.22 Pipe reduction for each element used (parallel)

Diameter 60 mm 70 mm 80 mm 90 mm 100 mm 110 mm 130 mm

45° bend 0.9 m 1.1 m 1.2 m 1.3 m 1.4 m 1.5 m 1.6 m

90° bend 3.1 m 3.5 m 4.0 m 4.5 m 4.9 m 5.4 m 6.2 m

Tab.23 Pipe reduction for each element used (concentric)

Diameter 60/100 mm 80/125 mm 100/150 mm

45° bend 1.0 m 1.0 m 1.0 m

90° bend 2.0 m 2.0 m 2.0 m

Page 36

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60/100 mm 80/125 mm

6 Installation

36 AMC 7686707 - v.01 - 06092018

6.5.6 Additional guidelines

Installation

For installing the flue gas outlet and air supply materials, refer to the instructions of the manufacturer of the relevant material. After installation, check at least all flue gas outlet and air supply parts for tightness.

Warning If the flue gas outlet and air supply materials are not installed in accordance with the instructions (e.g. not leak-proof, not correctly bracketed), this can result in dangerous situations and/or physical injury.

Make sure that the flue gas outlet pipe towards the boiler has a sufficient gradient (at least 50 mm per metre) and that there is a sufficient condensate collector and discharge (at least 1 m before the outlet of the boiler). The bends used must be larger than 90° to guarantee the gradient and a good seal on the lip rings.

Condensation

Direct connection of the flue gas outlet to structural ducts is not permitted because of condensation. If condensate from a plastic or stainless steel pipe section can flow back to an aluminium part in the flue gas outlet, this condensate must be discharged via a collector before it reaches the aluminium.

Fig.32 Connecting the flue gas outlet and

air supply

Important Contact us for more information.

6.5.7 Connecting the flue gas outlet and air supply

S Insertion depth 30 mm

Mounting

1. Connect the flue gas outlet pipe and the air supply pipe to the boiler.

2. Fit the subsequent flue gas outlet pipes and air supply pipes in accordance with the manufacturer's instructions.

Page 37

6 Installation

7686707 - v.01 - 06092018 AMC 37

Caution

The pipes must not be resting on the boiler. Fit the horizontal parts sloping down towards the boiler, with a gradient of 50 mm per metre.

6.6

Electrical connections

6.6.1 Recommendations

Warning

Electrical connections must always be made with the power supply disconnected and only by qualified installers. The boiler is completely pre-wired. Never change the internal connections of the control panel. Make sure you establish an earth connection before connecting the electricity.

Establish the electrical connections in accordance with:

The instructions of the current standards. The instructions of the wiring diagrams supplied with the boiler. The recommendations in this manual. Separate the sensor cables from the 230 V cables.

Caution

Outside the central heating boiler: Use 2 cables spaced at least 10 cm apart.

6.6.2 Control unit

The table gives important connection values for the control unit.

Supply voltage 230 VAC/50Hz

Main fuse value F1 (230 VAC) 2.5 AT

Danger of electric shock The following components of the boiler are connected to a 230 V power supply:

Electrical connection of the circulation pump Electrical connection to gas valve unit 230 VAC or 230 RAC. Fan Electrical connection of the three-way valve The majority of components in the control unit Ignition transformer Connection of supply cable Automatic refill device (accessory)

The boiler has a three-wire mains lead (lead length 1.5 m) and is suitable for a 230 VAC/50 Hz power supply with a phase/neutral/earth system. The boiler is not phase sensitive. The power supply cable is connected to the X01 connector in the instrument box. A spare fuse can be found in the casing of the control unit. There is a service port for a PC/laptop next to the control panel on the boiler.

Caution

Always order a replacement mains lead from De Dietrich. The power supply cable should only be replaced by De Dietrich, or by an installer certified by De Dietrich. The boiler switch must be easily accessible at all times.

Important All external connections can be made to the CB-03 (low-voltage) PCB.

Page 38

AD-0001217-04

AD-3000968-01

R-Bus

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38 AMC 7686707 - v.01 - 06092018

The boiler has several control, protection and regulation connection options. The standard PCB can be extended with optional PCBs.

6.6.3 Connecting a PC/laptop and diagnostic tools

There is a service port for a PC/laptop/smart phone/tablet next to the control panel on the boiler. Using the Recom PC/Smart Service app, you can enter, change and read out various boiler settings.

The service port is behind the flap on the front of the boiler.

6.6.4 Access to the connectors

Fig.33 Access to the connectors

The instrument box contains a standard CB-03 PCB with an X1 connector. Various thermostats and regulators can be connected to the standard PCB. The various connection options on the standard PCB are detailed in the following sections.

Access to the connectors:

1. Open the instrument box by undoing the clip fastener at the side.

2. Guide the cables from the regulator or the thermostat through the round grommet(s) on the right-hand side of the boiler bottom plate.

3. Guide the relevant connection cable(s) through the instrument box via the grommet(s) provided.

4. Undo the pull relief clip(s) and feed the cable(s) underneath.

5. Connect the cables to the appropriate terminals on the connector.

6. Press the pull relief clips firmly into place

7. Close the instrument box.

For more information, see Opening boiler, page 104

Fig.34 Connecting the modulating

thermostat

6.6.5 Connection options for the standard PCB

Connecting the modulating thermostat

The boiler is fitted with an R-bus connection as standard It is possible without further modification to connect a modulating thermostat such as the De Dietrich Smart TC° thermostat or an OpenTherm modulating thermostat. The boiler is also suitable for OpenTherm Smart Power.

Tm Modulating thermostat

1. In the case of a room thermostat: install the thermostat in a reference room.

2. Connect the two-wire cable from the modulating thermostat (Tm) to the R-Bus terminals of the connector. It does not matter which wire is connected to which cable clamp.

Important If the tap water temperature can be set on the thermostat, the boiler will supply this temperature (with the value set in the boiler as a maximum).

Connecting the on/off thermostat

The boiler is suitable for connection to a 2-wire on/off ambient thermostat.

Page 39

AD-3000969-01

R-Bus

AD-3000970-01

TvTk

R-Bus

6 Installation

7686707 - v.01 - 06092018 AMC 39

Fig.35 Connecting the on/off thermostat

Fig.36 Connection of frost thermostat

Tk On/off thermostat

1. Fit the thermostat in a reference room (generally the living room).

2. Connect the two-wire cable of the thermostat (Tk) to the R-Bus terminals of the connector. It does not matter which wire is connected to which cable clamp.

Frost protection combined with on/off thermostat

When an on/off thermostat is used, the pipes and radiators in a frostsensitive room can be protected by a frost thermostat. The radiator valve in the frost-sensitive room must be open.

Tk On/off thermostat Tv Frost thermostat

1. Place a frost thermostat (Tv) in a frost-sensitive room (e.g. a garage).

2. Connect the frost thermostat (Tv) parallel to the on/off thermostat (Tk) on the R-Bus terminals for the connector.

Warning If a De Dietrich Smart TC° or OpenTherm thermostat is used, a frost thermostat cannot be connected in parallel to the R-Bus terminals. In that case, implement frost protection of the central heating system in combination with an outside sensor.

Frost protection combined with outside sensor

The central heating system can also be protected against frost in combination with an outside sensor. The radiator valve in the frostsensitive room must be open.

Important For boilers with an SCB-10 PCB, the outdoor sensor is connected to the SCB-10 PCB.

The frost protection works as follows with an outside sensor:

If the outside temperature in lower than -10°C: heat demand from the boiler and the pump starts working. If the outside temperature is higher than -10°C: no heat demand from the boiler.

Important The outside temperature before the start of frost protection can be changed with parameter AP080.

Connecting an outside sensor

An outside sensor can be connected to the Tout connector. In the case of an on/off thermostat, the boiler will control the temperature with the set point from the internal heating curve.

See Adjusting the heating curve, page 81

Important For boilers with an SCB-10 PCB, the outdoor sensor is connected to the SCB-10 PCB.

Important An OpenTherm controller can also use this outside sensor. In that case, the desired internal heating curve must be set on the controller.

Page 40

AD-3000971-01

Tdhw

BLR-Bus RL Tout Tdhw

AD-0001234-02

BLR-Bus RL Tout Tdhw

AD-0001235-02

6 Installation

40 AMC 7686707 - v.01 - 06092018

Fig.37

Connecting the calorifier sensor/ thermostat

Connecting the calorifier sensor/thermostat

A calorifier sensor or thermostat can be connected to the Tdhw terminals of the connector.

1. Connect the plug from the calorifier sensor or calorifier thermostat to the Tdhw connector.

Blocking input

Fig.38 Blocking input

Fig.39 Release input

The boiler has a blocking input (Normally Closed contact). This input relates to the BL terminals of the connector.

If this contact is opened, the boiler will be blocked or locked out.

Change the function of the input with parameter setting AP001.

Important First remove the bridge if this input is used.

Warning Only suitable for potential-free contacts.

For more information, see CU-GH08 control unit settings, page 85

Release input

The boiler has a release input (Normally Open contact). This input relates to the RL terminals of the connector.

If this contact is closed when there is a heat demand, the boiler will be blocked after a waiting time.

Change the waiting time of the input with parameter setting AP008.

Page 41

Warning

AD-3001210-01

X2 X3

+TA-

Tsyst Tsyst Tdhw Tflow Tflow Tflow

C AB21

R-Bus

Tout

R-Bus

+ -

Status

C AB

0-10V

N L

N L TS

N L

2218 2019 21

14131211 15 16 17

109876

AD-0001388-04

7686707 - v.01 - 06092018 AMC 41

Only suitable for potential-free contacts.

6 Installation

Fig.40 Access to the PCB

6.6.6

Access to the PCB housing

1. Unscrew the two screws located under the front panel by a quarter turn.

2. Remove the front panel.

3. Tilt the instrument box forwards by opening the clips on the sides.

4. Remove the air intake silencer.

5. Unclip the 4 clips on the left side of the PCB housing cover.

6. Swing the cover to the right and pull it forward to remove the cover from the boiler.

7. Connect the cables to the appropriate terminals on PCB SCB-10.

8. Position the upper hinges of the cover in the right position of the PCB housing.

9. Press all hinges of the cover into place.

10. Close the 4 clips on the left side of the cover.

11. Fit the air intake silencer.

12. Reassemble the front panel in the reverse order.

For more information, see Opening boiler, page 104

6.6.7 Description of the SCB-10 PCB

Fig.41 SCB-10 PCB

Different heating zones can be connected to the SCB-10 PCB. Two zones are designated for heating and one for domestic hot water.

The connections for the sensors or pumps of each zone are on the PCB.

1 Outdoor temperature sensor 2 Programmable and 0-10 V input

3 Room temperature sensor - circuit C 4 Room temperature sensor - circuit B

Page 42

6 Installation

42 AMC 7686707 - v.01 - 06092018

5 Room temperature sensor - circuit A 6 Domestic hot water tank pump 7 3-way valve - circuit B 8 Pump and safety thermostat - circuit B

9 Three-way valve - circuit A 10 Pump and safety thermostat - circuit A 11 System sensor 1 12 System sensor 2 13 Domestic hot water sensor 14 Flow sensor - circuit C

15 Flow sensor - circuit B 16 Flow sensor - circuit A 17 Impressed current anode 18 Connectors Mod-BUS 19 Coding wheel, selects the generator number in the

cascade in Mod-Bus 20 S-BUS connector 21 END connector for L-BUS connection 22 L-BUS connection to control unit (CU-XXXX) 23 S-BUS cable connector

Tab.24 Compatibility of connections

Circuit A Circuit B Circuit C

(with AD249 op tion)

AUX circuit (with AD249 op tion)

Domestic hot wa ter circuit

Convection fan Yes Yes Yes No No

Underfloor heating Yes Yes Yes No No

Radiator Yes Yes Yes No No

365 day radiator Yes Yes Yes No No

Continuous heating Yes Yes Yes No No

Timer programme Yes Yes Yes Yes Yes

Swimming pool Yes Yes Yes No No

Domestic hot water produc

Yes Yes Yes Yes Yes

tion

Domestic hot water produc

Yes Yes Yes No No

tion, electric only

Stratified tank (2 sensors) No No No No Yes

Deactivation Yes Yes Yes Yes Yes

Caution Connect the TAS (Titan Active System) anode of the calorifier tank to the connector TA. If the calorifier tank does not have a TAS anode, connect the simulation anode (= accessory)

The SCB-10 PCB has the following features;

control of 2 (mixing) zones fitted on connector X15 control of a third (mixing) zone via an PCB (= accessory) fitted on connector X8 control of one domestic hot water (DHW) zone cascade layout (add sensor on sensor system 1 or 2)

Important

If the boiler is fitted with the SCB-10 board, then this is automatically recognised by the automatic control unit of the boiler. On removing this board, the boiler will show an error code. To prevent this error, carry out an auto-detect immediately after removing this board.

For more information, see Carrying out an auto-detect for the CAN matrix, page 99

Page 43

Connecting a three-way valve

AD-4000002-02

AD-4000001-03

N L

AD-0001132-02

N L

AD-4000006-02

T out

7686707 - v.01 - 06092018 AMC 43

6 Installation

Fig.42

Three-way valve

Fig.43 Pump with protection thermostat

Connecting a three-way valve (230 VAC) per zone (group).

The three-way valve is connected as follows:

= earth

N = neutral

= open = closed

Connecting the pump with a protection thermostat

Connecting a pump with a protection thermostat, e.g. for underfloor heating. The maximum pump power consumption is 300 VA.

Connect the pump and the protection thermostat as follows:

= earth N = neutral L = phase

= protection thermostat (remove bridge)

Connecting a domestic hot water (DHW) pump

Fig.44 DHW pump

Fig.45 Outside sensor

Connecting a domestic hot water (DHW) pump The maximum power consumption is 300 VA.

Connect the pump as follows:

= earth N = neutral L = phase

Connecting an outside sensor

An outside sensor can be connected to the S out terminals of the connector. In the case of an on/off thermostat, the boiler will control the temperature with the set point from the internal heating curve.

Page 44

AD-4000004-02

Status

0-10V

AD-4000003-02

R-Bus R-Bus R-Bus

C B A

AD-4000008-02

Tsyst Tsyst

1 2

6 Installation

44 AMC 7686707 - v.01 - 06092018

Connecting a telephone connector

Fig.46

Telephone connector

Fig.47 External room thermostats

The telephone connector can be used to connect a remote control, a 0–10 V analogue input or as a status output.

The 0–10 V signal controls the boiler flow temperature in a linear way. This control modulates on the basis of flow temperature. The output varies between the minimum and maximum value on the basis of the flow temperature set point calculated by the controller.

Connect the telephone connector as follows:

1 + 2 = 0–10 V / status input 3 + 4 = status output

Connecting external room thermostats

Connecting external room thermostats per group (zone).

The contacts work with an on/off thermostat, a room thermostat, an OpenTherm controller or an OpenTherm Smart Power controller.

RU.A = room thermostat RU.B = room thermostat RU.C = room thermostat

Fig.48 System sensors

Connecting system sensors

Connecting system sensors for circuits (zones).

S.SYST.1 = system sensor (NTC 10k Ohm/25°C) S.SYST.2 = system sensor (NTC 10k Ohm/25°C)

Page 45

Connecting the domestic hot water (DHW) sensor

AD-4000009-02

Tdhw

AD-4000007-02

TflowCTflowBTflow

AD-4000005-02

+ TA -

7686707 - v.01 - 06092018 AMC 45

6 Installation

Fig.49 DHW sensor

Fig.50 Contact temperature sensors

Connecting the domestic hot water (DHW) sensor (NTC 10k Ohm/25°C).

Connecting contact temperature sensors

Connecting contact temperature sensors for system flow, DHW temperatures or zones (groups).

S.DEP.A = temperature sensor (NTC 10k Ohm/25°C) S.DEP.B = temperature sensor (NTC 10k Ohm/25°C) S.DEP.C = temperature sensor (NTC 10k Ohm/25°C)

Fig.51 Anode connection for calorifier tank

6.7

Connection diagrams PCB SCB-10

Connecting the calorifier tank anode

Connecting a TAS anode (Titan Active System) for a calorifier tank.

Connect the anode as follows:

- = connection on the calorifier tank + = connection on the anode

Caution If the calorifier tank does not have a TAS anode, connect the simulation anode (= accessory)

6.7.1 Symbols used

Tab.25 Explanation of symbols in the hydraulics flow diagram

Symbol Explanation

Return pipe

Flow pipe

Motorised three-way valve

Pump

Page 46

6 Installation

46 AMC 7686707 - v.01 - 06092018

Symbol Explanation

Domestic hot water

Make contact

Outside temperature sensor

Sensor

Safety thermostat

Room thermostat

Plate heat exchanger

Low-loss header

Instant boiler

Primary heating circuit connection

Secondary heating circuit connection Domestic hot water circuit connection

Solar collector

DHW storage tank

Titanium anode – fitted in DHW storage tank

Electrical heating element

Shower

Heating zone

Underfloor heating

Page 47

6 Installation

7686707 - v.01 - 06092018 AMC 47

Symbol Explanation

Hot-air heater

Swimming pool

6.7.2 Factory configuration of circuits

From the factory, the different circuits are configured as shown in the table. You can modify this configuration and adapt it to the needs of your installation.

Tab.26 Factory circuit configuration

Circuit Circuit type

CIRCA Direct heating circuit

CIRCB Circuit with 3 way valve

CIRCC Circuit with 3 way valve

6.7.3

When the boiler is fitted with the SCB-10 control board the following boiler parameter(s) at installer level must be checked and adjusted, if necessary:

Tab.27 Installation Setup > CU-GH08 > CIRCA > Parameters, counters, signals > Parameters

Code Display text Description Range Adjust

CP020 Zone Function Functionality of the zone 0 = Disable

Tab.28 Installation Setup > CU-GH08 > Gas fired appliance > Parameters, counters, signals > Parameters

Code Display text Description Range Adjust

AP102 Boiler Pump function Configuration of the boiler pump as

zone pump or system pump (feed lowloss header)

Boiler settings with SCB-10 control

1 = Direct 2 = Mixing Circuit 3 = Swimming pool 4 = High Temperature 5 = Fan Convector 6 = DHW tank 7 = Electrical DHW 8 = Time Program 9 = ProcessHeat 10 = DHW Layered 11 = DHW Internal tank 31 = DHW FWS EXT

0 = No 1 = Yes

ment

Tab.29 Installation Setup > CU-GH08 > Tank DHW > Parameters, counters, signals > Parameters

Code Display text Description Range Adjust

DP007 Dhw 3wv Standby Position of three way valve during

standby

For the hydraulic connections as shown, where some parameters must be adjusted, the parameter settings are arranged in three levels:

1. End user level

0 = CH position 1 = DHW position

ment

Page 48

6 Installation

48 AMC 7686707 - v.01 - 06092018

2. Installer level

3. Advanced installer level

Important

The ‘Read’ column shows the read only parameters on the given level. The ‘Write’ column shows the parameters which can be changed on the given level.

Page 49

Fig.52 1 boiler + 1 direct zone

AD-3001068-01

AD-3001079-02

R-Bus

Tout

Tdhw

CB-03

X131 X136

X03

SCB-10

6.3A T

X12

X13

X15

S-BUS

X11

X10

L-BUS

X14

N L

R-Bus

T out

Status

R-Bus

0-10V

X14

+TA-

1 2 C B A

Tsyst Tsyst Tdhw Tflow Tflow Tflow

7686707 - v.01 - 06092018 AMC 49

6 Installation

6.7.4 Connection direct zone

Page 50

AD-3001069-01

AD-3001080-02

R-Bus

Tout

Tdhw

CB-03

X131 X136

X03

SCB-10

6.3A T

X12

X13

X15

S-BUS

X11

X10

L-BUS

X14

N L

R-Bus

T out

Status

R-Bus

1C2

0-10V

+TA-

1 2 C B A

Tsyst Tsyst Tdhw Tflow Tflow Tflow

6 Installation

50 AMC 7686707 - v.01 - 06092018

Boiler

Fig.53 1 boiler + 1 direct zone + DHW zone

Direct zone - CircA

Important All the factory settings of the boiler and SCB-10 are adequate for this connection.

6.7.5 Connection 1 direct zone + DHW zone

Boiler

Direct zone - CircA

Domestic hot water (DHW) zone (1 sensor)

Page 51

AD-3001070-01

AD-3001081-02

SCB-10

6.3A T

X12

X13

X15

S-BUS

X11

X10

L-BUS

X14

N L

R-Bus

T out

Status

R-Bus

0-10V

+TA-

1 2 C B A

Tsyst Tsyst Tdhw Tflow Tflow Tflow

R-Bus

Tout

Tdhw

CB-03

X131 X136

X03

6 Installation

7686707 - v.01 - 06092018 AMC 51

Caution

If the tank is fitted with a Titan Active System® corrosion protection anode, connect the anode to the inlet (+ TA on the anode, - on the tank). If the tank is not fitted with a corrosion protection anode, put the simulation connector in place (delivered with the DHW sensor (accessory))

Important All the factory settings of the boiler and SCB-10 are adequate for this connection.

6.7.6 Connection 1 LLH + 1 direct zone + DHW zone with electrical heating element

Fig.54

1 boiler + 1 LLH + 1 direct zone + DHW zone with electrical heating element

Boiler

Direct zone - CircA1

Page 52

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52 AMC 7686707 - v.01 - 06092018

Domestic hot water (DHW) zone - CircB1 (with

Low loss header

electrical heating element)

Caution The electrical heating element must be connected to a separate relay and safety thermostat.

Tab.30 Installation Setup > SCB-10 > CIRCB 1 ( Electrical DHW tank ) > Parameters, counters, signals > Parameters

Code Display text Description Range Adjust

ment

CP001 MaxZoneTFlowSetpoint Maximum Flow Temperature

7 °C – 100 °C 90

setpoint zone

CP021 Zone Function Functionality of the zone 0 = Disable

7 1 = Direct 2 = Mixing Circuit 3 = Swimming pool 4 = High Temperature 5 = Fan Convector 6 = DHW tank 7 = Electrical DHW 8 = Time Program 9 = ProcessHeat 10 = DHW Layered 11 = DHW Internal tank 31 = DHW FWS EXT

Page 53

6.7.7 Connection 1 LLH + 1 direct zone + mixing zone + DHW

AD-3001072-01

AD-3001083-02

R-Bus

Tout

Tdhw

CB-03

X131 X136

X03

SCB-10

6.3A T

X12

X13

X15

S-BUS

X11

X10

L-BUS

X14

N L

X14

R-Bus

T out

Status

R-Bus

1C2

0-10V

+TA-

1 2 C B A

Tsyst Tsyst Tdhw Tflow Tflow Tflow

2356

7686707 - v.01 - 06092018 AMC 53

zone

Fig.55 1 boiler + 1 LLH + 1 direct zone + mixing zone + DHW zone

6 Installation

Boiler

Low loss header

Direct zone - CircA1

Important All the factory settings of the boiler and SCB-10 are adequate for this connection.

Mixing zone - CircB1 (underfloor heating)

DHW zone -1 sensor

Page 54

AD-3001073-01

AD-3001084-02

R-Bus

ToutBL RL

Tdhw

CB-03

X131 X136

X03

SCB-10

6.3A T

X12

X13

X15

S-BUS

X11

X10

L-BUS

X14

N L

R-Bus

T out

Status

R-Bus

1C2

0-10V

N L

+TA-

1 2 C B A

Tsyst Tsyst Tdhw Tflow Tflow Tflow

6 Installation

54 AMC 7686707 - v.01 - 06092018

Caution

6.7.8 Connection 1 LLH + 1 direct zone + mixing zone + DHW zone

Fig.56 1 boiler + 1 LLH + 1 direct zone + mixing zone + DHW zone

Boiler

Low loss header

Direct zone - CircA1

Mixing zone - CircB1

DHW zone -DHW1 (layered calorifier - 2 sensors)

Page 55

6 Installation

7686707 - v.01 - 06092018 AMC 55

Important For this configuration an additional PCB (accessory AD249) is placed on the SCB-10 PCB.

Tab.31 Installation Setup > SCB-10 > DHW 1 ( DHW layered tank ) > Parameters, counters, signals > Parameters

Code Display text Description Range Adjust

ment

CP022 Zone Function Functionality of the zone 0 = Disable

10 1 = Direct 2 = Mixing Circuit 3 = Swimming pool 4 = High Temperature 5 = Fan Convector 6 DHW tank 7 = Electrical DHW 8 = Time Program 9 = ProcessHeat 10 = DHW Layered 11 = DHW Internal tank 31 = DHW FWS EXT

Tab.32 Installation Setup > SCB-10 > AUX 1 ( Zone time program ) > Parameters, counters, signals > Parameters

Code Display text Description Range Adjust

ment

CP024 Zone Function Functionality of the zone 0 = Disable

8 1 = Direct 2 = Mixing Circuit 3 = Swimming pool 4 = High Temperature 5 = Fan Convector 6 = DHW tank 7 = Electrical DHW 8 = Time Program 9 = ProcessHeat 10 = DHW Layered 11 = DHW Internal tank 31 = DHW FWS EXT

Page 56

AD-3001074-01

AD-3001085-02

R-Bus

Tout

Tdhw

CB-03

X131 X136

X03

SCB-10

6.3A T

X12

X13

X15

S-BUS

X11

X10

L-BUS

X14

N L

X14

R-Bus

T out

Status

R-Bus

1C2

0-10V

N L TS N L

+TA-

Tsyst Tsyst Tdhw Tflow Tflow Tflow

C B A

1245

6 Installation

56 AMC 7686707 - v.01 - 06092018

6.7.9 Connection 1 LLH + 1 mixing zone + 1 direct zone + swimming pool + DHW zone

Fig.57 1 boiler + 1 LLH + 1 mixing zone + 1 direct zone + swimming pool + DHW zone

Boiler

Low loss header C D

Mixing zone - CircB1 (underfloor heating)

Direct zone - CircA1

Important For this configuration an additional PCB (accessory AD249) is placed on the SCB-10 PCB.

Swimming pool zone - CircC1

Plate heat exchanger

DHW zone - DHW1 (1 sensor)

Page 57

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7686707 - v.01 - 06092018 AMC 57

Caution

Tab.33 Installation Setup > SCB-10 > CIRCC 1 ( Swimming pool ) > Parameters, counters, signals > Parameters

Code Display text Description Range Adjust

ment

CP023 Zone Function Functionality of the zone 0 = Disable

3 1 = Direct 2 = Mixing Circuit 3 = Swimming pool 4 = High Temperature 5 = Fan Convector 6 DHW tank 7 = Electrical DHW 8 = Time Program 9 = ProcessHeat 10 = DHW Layered 11 = DHW Internal tank 31 = DHW FWS EXT

Tab.34 Installation Setup > SCB-10 > AUX 1 ( Zone time program ) > Parameters, counters, signals > Parameters

Code Display text Description Range Adjust

ment

CP024 Zone Function Functionality of the zone 0 = Disable

Page 58

AD-3001075-01

AD-3001086-02

R-Bus

Tout

Tdhw

CB-03

X131 X136

X03

SCB-10

6.3A T

X12

X13

X15

S-BUS

X11

X10

L-BUS

X14

N L

R-Bus

T out

Status

R-Bus

0-10V

+TA-

1 2 C B A

Tsyst Tsyst Tdhw Tflow Tflow Tflow

N L TS N L

5 29

1467

6 Installation

58 AMC 7686707 - v.01 - 06092018

6.7.10 Connection 1 LLH + 3 mixing zones + DHW zone

Fig.58 1 boiler + 1 LLH + 3 mixing zones + DHW zone

Boiler

Low loss header

Mixing zone - CircA1

Important For this configuration an additional PCB (accessory AD249) is placed on the SCB-10 PCB.

Mixing zone - CircB1

Mixing zone - CircC1 (underfloor heating)

DHW zone - DHW1 (1 sensor)

Page 59

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7686707 - v.01 - 06092018 AMC 59

Caution

Tab.35 Installation Setup > SCB-10 > CIRCA 1 ( Mixed zone ) > Parameters, counters, signals > Parameters

Code Display text Description Range Adjust

ment

CP000 MaxZoneTFlowSetpoint Maximum Flow Temperature

7 °C – 100 °C 50

setpoint zone

CP010 Tflow setpoint zone Zone flow temperature setpoint,

7 °C – 100 °C 40

used when the zone is set to a fixed flow setpoint.

CP020 Zone Function Functionality of the zone 0 = Disable

2 1 = Direct 2 = Mixing Circuit 3 = Swimming pool 4 = High Temperature 5 = Fan Convector 6 = DHW tank 7 = Electrical DHW 8 = Time Program 9 = ProcessHeat 10 = DHW Layered 11 = DHW Internal tank 31 = DHW FWS EXT

CP230 Zone Heating Curve Heating curve temperature gradient

0 – 4 0.7

of the zone

Tab.36 Installation Setup > SCB-10 > AUX 1 ( Zone time program ) > Parameters, counters, signals > Parameters

Code Display text Description Range Adjust

ment

CP024 Zone Function Functionality of the zone 0 = Disable

Page 60

AD-3001076-01

AD-3001087-02

R-Bus

Tout

Tdhw

CB-03

X131 X136

X03

+TA-

1 2 C B A

Tsyst Tsyst Tdhw Tflow Tflow Tflow

SCB-10

6.3A T

X12

X13

X15

S-BUS

X11

X10

L-BUS

X14

N L

R-Bus

T out

Status

R-Bus

0-10V

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60 AMC 7686707 - v.01 - 06092018

6.7.11 Connection 1 combi–buffer + 1 direct zone + 1 mixing zone + solar collectors

Fig.59 1 boiler + 1 combi–buffer + 1 direct zone + 1 mixing zone + solar collectors

Direct zone - CircA1

Mixing zone - CircB1 (underfloor heating)

1 = One sensor 2 = Two sensors 3 = Three sensors

Boiler

Solar collectors

Combi-buffer tank with solar preheating

Tab.37 Installation Setup > SCB-10 > Pass.buff.tank 1sens > Parameters, counters, signals > Parameters

Code Display text Description Range Adjust

BP001 Type Buffer Tank Type of buffer tank 0 = Disabled

ment

Page 61

6.7.12 Connection 1 combi–buffer + 1 direct zone + 1 mixing

AD-3001077-01

AD-3001088-02

SCB-10

6.3A T

X12

X13

X15

S-BUS

X11

X10

L-BUS

X14

R-Bus

Tout

Tdhw

CB-03

X131 X136

X03

N L

R-Bus

T out

Status

R-Bus

0-10V

+TA-

1 2 C B A

Tsyst Tsyst Tdhw Tflow Tflow Tflow

N L TS

N L

7686707 - v.01 - 06092018 AMC 61

zone + swimming pool + solar collectors

Fig.60 1 boiler + 1 combi–buffer + 1 direct zone + 1 mixing zone + swimming pool + solar collectors

6 Installation

Boiler

Combi-buffer tank with solar preheating

Solar collectors

Direct zone - CircA1

Important For this configuration an additional PCB (accessory AD249) is placed on the SCB-10 PCB.

Mixing zone - CircB1 (underfloor heating)

Direct zone - CircC1 (swimming pool)

Plate heat exchanger

Page 62

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62 AMC 7686707 - v.01 - 06092018

Tab.38 Installation Setup > SCB-10 > Pass.buff.tank 1sens > Parameters, counters, signals > Parameters

Code Display text Description Range Adjust

ment

BP001 Type Buffer Tank Type of buffer tank 0 = Disabled

1 1 = One sensor 2 = Two sensors 3 = Three sensors

Tab.39 Installation Setup > SCB-10 > CIRCC ( Swimming pool ) > Parameters, counters, signals > Parameters

Code Display text Description Range Adjust

ment

CP023 Zone Function Functionality of the zone 0 = Disable

Page 63

6.7.13 Connection 2 boilers (cascade) + LLH + 1 direct zone + 1

AD-3001078-01

AD-3001089-02

R-Bus

ToutBL RL

Tdhw

CB-03

X131 X136

X03

SCB-10

6.3A T

X12

X13

X15

S-BUS

X11

X10

L-BUS

X14

S-BUS

RU.ARU.B

N L

R-BusT out

Status

R-Bus

0-10V

+TA-

Tsyst Tsyst Tdhw Tflow Tflow Tflow

X15

N L

SCB-10

6.3A T

X12

X13

X15

S-BUS

X11

X10

L-BUS

X14

N L

R-Bus

T out

Status

R-Bus

0-10V

+TA-

Tsyst Tsyst Tdhw Tflow Tflow Tflow

A-B

3 2 8

7686707 - v.01 - 06092018 AMC 63

mixing zone + DHW zone

Fig.61 2 boilers (cascade) + LLH + 1 direct zone + 1 mixing zone + DHW zone

6 Installation

Page 64

6 Installation

64 AMC 7686707 - v.01 - 06092018

Boiler (master)

Boiler (slave)

Low loss header

Direct zone - CircA1 (Boiler A)

Mixing zone - CircB1 (Boiler B)

DHW zone - CircA1 (Boiler A)

A-B

S-BUS cable kit

Boiler A: resistor on SCB-10 connector X5, Cable on SCB-10 connector X4 Boiler B: resistor on SCB-10 connector X5, Cable on SCB-10 connector X4

Caution

Tab.40 Boiler A: Installation Setup > SCB-10 > Cascade management B > Parameters, counters, signals > Parameters

Code Display text Description Range Adjust

ment

AP083 Enable master func Enable the master functionality of

this device on the S-Bus for system

0 = No 1 = Yes

control

Tab.41 Boiler A: Installation Setup > SCB-10 > DHW 1 ( DHW layered tank ) > Parameters, counters, signals > Parameters

Code Display text Description Range Adjust

ment

CP022 Zone Function Functionality of the zone 0 = Disable

10 1 = Direct 2 = Mixing Circuit 3 = Swimming pool 4 = High Temperature 5 = Fan Convector 6 = DHW tank 7 = Electrical DHW 8 = Time Program 9 = ProcessHeat 10 = DHW Layered 11 = DHW Internal tank 31 = DHW FWS EXT

Tab.42 Boiler B: Installation Setup > CU-GH08 > Gas fired appliance > Parameters, counters, signals > Parameters

Code Display text Description Range Adjust

AP102 Boiler Pump function Configuration of the boiler pump as

zone pump or system pump (feed

0 = No 1 = Yes

lowloss header)

ment

Page 65

AD-0001352-01

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Tab.43 Boiler B: Installation Setup > SCB-10 > CIRCA 1 ( Zone time program ) > Parameters, counters, signals > Parameters

Code Display text Description Range Adjust

ment

CP020 Zone Function Functionality of the zone 0 = Disable

6.8

Fig.62

Filling the system

Automatic refill device

This chapter describes the filling of an empty CH system (< 0.3 bar) after installation of the boiler.

Refilling a CH system with too low water pressure is described in a separate chapter.

See Refilling the system, page 111

The central heating system can be refilled semi-automatically using the automatic refill device. This means that the boiler control panel indicates that the system needs to be refilled and requests confirmation from the user.

See Filling the system with the automatic refill device, page 66

6.8.1 Water quality and water treatment

In many cases, the boiler and central heating system can be filled with normal tap water and water treatment will not be necessary.

The quality of the CH water must comply with certain limit values, which can be found in the Water quality instructions. The guidelines in these instructions must be followed at all times.

Page 66

AD-0000354-01

AD-0001352-01

6 Installation

66 AMC 7686707 - v.01 - 06092018

6.8.2 Filling the siphon

Danger The siphon must always be sufficiently filled with water. This prevents flue gases from entering the room.

Fig.63

Filling the siphon

1. Remove the siphon.

2. Fill the siphon with water up to the mark.

3. Fit the siphon.

Caution Fit the vent hose above the siphon.

4. Check whether the siphon is firmly fitted in the boiler.

6.8.3 Filling the system with the automatic refill device

Caution Before filling, open the valves on every radiator in the central heating system.

The automatic refill device is placed under the boiler. This refill device can fill an empty central heating system semi-automatically to the set maximum water pressure. To do this, proceed as follows:

1. Switch on the boiler.

Caution The automatic refill device is only active if the boiler is switched on.

Fig.64 AUTO position

2. Check and adjust the following boiler settings if necessary:

2.1. The automatic refill device must be on AUTO.

2.2. The valves on the mounting frame must be open.

2.3. The automatic refill device is set for semi-automatic (manual) refilling. By configuring parameter AP014, you can also select automatic refilling or to switch off the refill device.

See Refilling the system with the automatic refill device, page 111

Important

Semi-automatic refilling means: The boiler control panel indicates that the system needs to be refilled and requests confirmation from the user. Automatic refilling means: The system is refilled as soon as the water pressure is too low.

3. A message to indicate that automatic filling is necessary will appear on the display:

3.1.

Press the button to confirm automatic filling.

Important Filling can only be interrupted if the water pressure is higher than the minimum water pressure.

4. A message will appear on the display when automatic filling is complete:

4.1.

Press the key to go back to the main display.

5. Check the water-side connections for tightness.

6. After filling the installation, switch the boiler on.

Page 67

AD-3000943-02

0.3 A0 B

AD-3000944-01

A0 B

6 Installation

7686707 - v.01 - 06092018 AMC 67

Caution

After switching on the power and if there is adequate water pressure, the boiler always runs through an automatic venting program lasting approximately 3 minutes (air may escape via the automatic air vent during filling). If the water pressure is lower than the minimum water pressure, a warning symbol will appear. The central heating system will be refilled (semiautomatically), depending on the setting. The venting program will then be started. If filling is cancelled by the user, automatic filling will resume (after confirmation by the user) once the minimum water pressure (0.3 bar) has been reached. An error code will display if the water pressure does not rise sufficiently during filling: E02.39. An error code will be displayed if filling is taking too long: E02.32.

Additional information for the automatic refill device

The parameters for the automatic refill device are set for the most common central heating systems. With these settings, most central heating systems will be filled and refilled correctly.

In other cases, such as a large central heating installation with long pipes, low supply water pressure or an acceptable rate of leakage in an (old) installation, the settings for the automatic refill device can be changed:

Fig.65 Automatic filling

Fig.66 Automatic refilling

Automatic filling

AP006 : The minimum water pressure for activating the water pressure alarm

AP070 : The maximum permitted water pressure for the central heating system

AP023 : The maximum time required to fill an empty system to 0.3 bar

AP071 : The maximum time required to fill the system to the maximum water pressure (B)

Time (min.)

Water pressure (bar)

Important

If filling the system to 0.3 bar takes too long, filling will stop and error code E02.39 will be displayed. If filling the system takes too long and the minimum water pressure (A) has not yet been reached, filling will stop and error code E02.32 will be displayed. If filling the system takes too long but the minimum water pressure (A) is reached, the boiler will stop filling but no error code will be displayed.

Automatic refilling

AP006 : The minimum water pressure for activating the water pressure alarm

AP070 : The maximum permitted water pressure for the central heating system

AP069 : The maximum time a refill event may last AP051 : The minimum permitted time between two refill events

Time (min.)

Water pressure (bar)

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68 AMC 7686707 - v.01 - 06092018

Important

If refilling takes too long and the water pressure is lower than the minimum water pressure AP006 , warning A02.33 will appear. The following warning is displayed if another refill event is required too soon: A02.34 . Check that there is adequate difference between the maximum water pressure ( AP070 ) and the minimum water pressure ( AP006 ).

For more information, see CU-GH08 control unit settings, page 85

Page 69

7 Commissioning

AD-0000352-01

7686707 - v.01 - 06092018 AMC 69

7.1 Checklist before commissioning

7 Commissioning

7.1.1 General

Follow the steps set out in the paragraphs below to put the boiler into operation.

Warning Do not put the boiler into operation if the supplied gas is not in accordance with the approved gas types.

7.1.2 Gas circuit

Fig.67 Gas valve unit measuring points

Warning Ensure that the boiler is disconnected from the power supply.

1. Open the main gas tap.

2. Open the boiler gas tap.

3. Unscrew the two screws located under the front housing by a quarter turn and remove the front housing.

4. Tilt the instrument box forwards by opening the clips on the sides.

5. Check the gas inlet pressure at the measuring point C on the gas valve unit.

Warning For authorised gas pressures, see Unit categories, page 9

6. Vent the gas supply pipe by unscrewing measuring point C on the gas valve unit.

7. Tighten the measuring point again when the pipe has been fully vented.

8. Check all connections for gas tightness. The maximum allowable test pressure is 60 mbar.

1. Check whether the automatic refill device, if present, is activated.

The automatic refill device is activated when parameter AP014 is set to semi-automatic refill (1) or automatic refill (2).

2. Check the water pressure in the central heating system shown on the boiler display. If necessary, top up the central heating system.

3. Check the siphon; it should be fully filled with clean water.

4. Check the water-side connections for tightness.

For more information, see Refilling the system, page 111

7.1.4 Connections for the air and flue gas pipes

1. Check the flue gas outlet and air supply connections for tightness.

7.1.3 Hydraulic circuit

Page 70

7 Commissioning

70 AMC 7686707 - v.01 - 06092018

7.1.5 Electrical connections

1. Check the electrical connections.

7.2 Commissioning procedure

Warning

Initial commissioning must be done by a qualified professional. If adapting to another gas type i.e. propane, the gas valve unit must be adjusted before switching on the boiler.

Important On first firing the boiler, a smell may be present for a short period.

1. Open the main gas tap.

2. Open the boiler gas tap.

3. Turn the boiler on

4. Turn on the boiler using the on/off switch.

5. A start menu will automatically appear on the control panel for the following settings:

Statement Setting

Select country Country where the boiler is installed

Select language Choice of language

Enable Daylight Saving Time On

Set Date and Time Year/Month/Day

6. Set the components (thermostats, control) so that heat is demanded.

7. The start-up program will start and cannot be interrupted.

8. The boiler will also start an automatic venting cycle lasting around 3 minutes. This is repeated every time the supply voltage is cut.

Important If a calorifier sensor is connected and the legionella protection function is activated, the boiler starts to heat the water in the DHW tank as soon as the venting programme has been completed.

The current operating condition of the boiler is shown on the display of the control panel.

If there is no information on the display:

Check the mains supply voltage. Check the fuse on the control unit: (F1 = 2.5 AT) Check the connection of the mains lead to the connector in the control unit.

Error during start-up procedure:

In the event of a fault, a message with the corresponding code is displayed.

The meaning of the error codes can be found in the error table.

For more information, see Error codes, page 113

7.3

Gas settings

7.3.1 Adjusting to a different gas type

Warning Only a qualified installer may carry out the following operations.

The factory setting of the boiler is for operation with the natural gas group G20 (H gas).

Page 71

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Before operating with a different type of gas, carry out the following steps:

Fig.68

Installing gas diaphragm

1. Fit the gas diaphragm in the gas valve unit (if necessary, see table). If the boiler is modified, for G30/G31 (butane/propane) : Tab.44 Gas diaphragm for G30/G31 (butane/propane)

Gas diaphragm for G30/G31 (butane/propane) Ø (mm)

AMC 15 3.95

AMC 25 3.95

AMC 25/28 MI 3.95

AMC 35 -

2. Set the fan speed as indicated in the table (if necessary). The setting can be changed with a parameter setting.

Tab.45 Factory settings G20 (H-gas)

Code Display text Description Adjustment range 15 25 25/28 MI35

DP003 Abs. max fan DHW Maximum fan speed on

1000 Rpm – 7000 Rpm 4500 5600 6200 6200

Domestic Hot Water

GP007 Fan RPM Max CH Maximum fan speed

1400 Rpm – 7000 Rpm 4500 5600 4600 6200 during Central Heating mode

GP008 Fan RPM Min Minimum fan speed

1400 Rpm – 4000 Rpm 1800 1900 1900 1850 during Central Heating + Domestic Hot Water mode

GP009 Fan RPM Start Fan speed at appliance

1000 Rpm – 4000 Rpm 3700 3000 3000 4000 start

Tab.46 Adjustment for gas type G30/G31 (butane/propane)

Code Display text Description Adjustment range 15 25 25/28 MI35

DP003 Abs. max fan DHW Maximum fan speed on

1000 Rpm – 7000 Rpm 4100 4900 5400 5400

Domestic Hot Water

GP007 Fan RPM Max CH Maximum fan speed

1400 Rpm – 7000 Rpm 4100 4900 3850 5400 during Central Heating mode

GP008 Fan RPM Min Minimum fan speed

1400 Rpm – 4000 Rpm 2200 1900 1900 1850 during Central Heating + Domestic Hot Water mode

GP009 Fan RPM Start Fan speed at appliance

1000 Rpm – 4000 Rpm 3700 3000 3000 4000 start

3. Check the setting of the gas/air ratio at full and part load.

For more information, see CU-GH08 control unit settings, page 85

7.3.2 Fan speeds for overpressure applications

In the event of an overpressure application (e.g. CLV), the volume flow of the fan must be adjusted in accordance with the table below.

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Tab.47 Adjustment for overpressure applications for gas type G20 (H gas)

Code Display text Description Adjustment

15 25 25/28 MI 35

range

GP008 Fan RPM Min Minimum fan speed

during Central Heating +

1400 Rpm 4000 Rpm

2100 2150 2150 2250

Domestic Hot Water mode

Tab.48 Adjustment for overpressure applications for gas type G30/G31 (butane/propane)

Code Display text Description Adjustment

15 25 25/28 MI 35

range

GP008 Fan RPM Min Minimum fan speed

during Central Heating +

1400 Rpm 4000 Rpm

2200 2150 2150 2250

Domestic Hot Water mode

For more information, see CU-GH08 control unit settings, page 85

Fig.69 Flue gas measuring point

Fig.70 Full load test

7.3.3 Checking/setting combustion

1. Unscrew the cap from the flue gas measuring point.

2. Insert the probe for the flue gas analyser into the measurement opening.

Warning During measurement, seal the opening around the sensor fully.

Important The flue gas analyser must have a minimum accuracy of ±0.25% O2.

3. Measure the percentage of O2 in the flue gases. Take measurements at full load and at part load, as described below.

Important Measurements must be taken with the front casing off.

Performing the full load test

1. Select the tile [ ].

The Change load test mode menu appears.

2. Select the test MaximumPowerCH.

Change load test mode

A B MaximumPowerCH

The full load test starts. The selected load test mode is shown in the menu and the icon appears in the top right of the screen.

3. Check the load test settings and adjust if necessary.

Only the parameters shown in bold can be changed.

Checking and setting at full load

1. Measure the percentage of O2 in the flue gases.

2. Compare the measured value with the checking values in the table.

Page 73

Fig.71

AD-0000320-01

AD-3000941-02

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Position of adjusting screw A

7 Commissioning

3. If the measured value is outside of the values given in the table, correct the gas/air ratio.

4. Using adjusting screw A, adjust the percentage of O2 for the gas type being used to the nominal value. This should always be inside the

highest and lowest setting limit.

Caution The O2 values at full load must be lower than the O2 values at part

load.

Checking/setting values O2 at full load

Tab.49 Checking/setting values for O2 at full load for G20 (H gas)

Values at full load for G20 (H gas)

AMC 15

AMC 25

AMC 25/28 MI

AMC 35

(1) Nominal value

O2 (%)

4.7 - 5.2

4.3 - 4.8

(1)

Fig.72 Part load test

Tab.50 Checking/setting values for O2 at full load for G30/G31 (butane/

propane)

Values at full load for G30/G31 (butane/propane)

AMC 15

AMC 25

AMC 25/28 MI

AMC 35

(1) Nominal value

O2 (%)

4.7 - 5.2

(1)

Caution The O2 values at full load must be lower than the O2 values at part

load.

Performing the part load test

1. If the full load test is still running, press the button to change the load test mode.

2. If the full load test was finished, select the tile [ ] to restart the chimney sweep menu.

Change load test mode

A B MinimumPower

3. Select the MinimumPower test in the menu Change load test mode.

The part load test starts. The selected load test mode is shown in the menu and the icon appears in the top right of the screen.

4. Check the load test settings and adjust if necessary.

Only the parameters shown in bold can be changed.

5. End the part load test by pressing the button.

The message Running load test(s) stopped! is displayed.

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Fig.73 Position of adjusting screw B

Checking and setting at part load

1. Measure the percentage of O2 in the flue gases.

2. Compare the measured value with the checking values in the table.

Caution The O2 values at part load must be higher than the O2 values at

full load.

3. If the measured value is outside of the values given in the table, correct the gas/air ratio.

4. Using adjusting screw B, adjust the percentage of O2 for the gas type being used to the nominal value. This should always be inside the

highest and lowest setting limit.

5. Set the boiler back to the normal operating status.

Checking/setting values for O2 at part load

Tab.51 Checking/setting values for O2 at part load for G20 (H gas)

Values at part load for G20 (H gas)

AMC 15

AMC 25

AMC 25/28 MI

AMC 35

(1) Nominal value

Tab.52 Checking/setting values for O2 at part load for G30/G31 (butane/

propane)

Values at part load for G30/G31 (butane/propane)

AMC 15

AMC 25

AMC 25/28 MI

AMC 35

(1) Nominal value

O2 (%)

(1)

5.9

(1)

5.9

(1)

5.9

(1)

5.5

O2 (%)

(1)

5.8

(1)

5.8

(1)

5.8

(1)

5.8

(1)

- 6.3

- 5.9

(1)

- 6.1

Page 75

Caution

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The O2 values at part load must be higher than the O2 values at full load.

7.3.4 Basic setting for the gas/air ratio

7 Commissioning

Fig.74 Gas valve unit

Fig.75 Adjustment screw A

If the gas/air ratio is out of adjustment, the gas valve unit has a basic setting. To do this, proceed as follows:

1. Switch off the boiler's electrical connection.

2. Close the gas valve on the boiler.

3. Remove the air inlet flue on the venturi.

4. Unscrew the top nut on the gas valve unit.

5. Disconnect the connector(s) located under the fan.

6. Release the 2 clips holding the fan/mixing elbow unit in place on the heat exchanger.

7. Remove the fan together with the mixing elbow unit.

8. Turn adjustment screw A on the gas valve unit to modify the position of the restrictor:

8.1. Turn adjustment screw A until the restrictor is fully closed.

8.2. Turn adjustment screw A anticlockwise. Refer to the table for the amount of rotations per appliance and gas type.

Tab.53 Adjustment screw A

Gas type G20 (H gas) G30/G31 (butane/

propane)

AMC 15 6 rotations 4 rotations

AMC 25 9 rotations 6 rotations

AMC 25/28 MI 9 rotations 6 rotations

AMC 35 9 rotations 6 rotations

When the appliance does not start directly, turn the adjustment screw A one extra rotation anticlockwise.

Fig.76 Adjustment screw B

9. Turn adjustment screw B on the gas valve unit to modify the position:

9.1. Turn the adjustment screw B clockwise until it reaches the stop.

9.2. Turn the adjustment screw B 2 ¼ rotations anticlockwise.

10. Fit all removed parts in the reverse order.

11. Check the gas settings.

For more information, see Checking/setting combustion, page 72

7.4

Final instructions

1. Remove the measuring equipment.

2. Screw the cap on to the flue gas measuring point.

3. Seal the gas valve unit.

4. Put the front casing back.

5. Heat the central heating system up to approximately 70°C.

6. Switch the boiler off.

7. Vent the central heating system after approx. 10 minutes.

8. Turn on the boiler.

9. Check the water pressure. If necessary, top up the central heating system.

Page 76

AD-3001124-01

Adjusted for / Réglée pour / Ingesteld op / Eingestellt auf / Regolato per / Ajustado para / Ρυθμισμένο για / Nastawiony na / настроен для / Reglat pentru / настроен за / ayarlanmıştır / Nastavljen za / beállítva/ Nastaveno pro / Asetettu kaasulle / Justert for/ indstillet til/ ضبط ل :

(10)3(X)

Gas

(12)3(X)

mbar

Parameters / Paramètres / Parameter / Parametri / Parámetros / Παράμετροι / Parametry / Параметры / Parametrii / Параметри / Parametreler / Paraméterek / Parametrit / Parametere / Parametre / المعلمات :

G20

DP003 - 3300

GP007 - 3300

GP008 - 2150

GP009 -

7 Commissioning

76 AMC 7686707 - v.01 - 06092018

Fig.77

Example filled-in sticker

10. Fill in the following data on the sticker included, and attach it next to the data plate on the appliance.

If adapted to another gas, fill in the gas type; The gas supply pressure; If set to overpressure application, fill in the type; The parameters modified for the changes mentioned above.

11. Instruct the user in the operation of the system, boiler and controller.

12. Inform the user of the maintenance to be performed.

13. Hand over all manuals to the user.

14. Confirm the commissioning with a signature and a company stamp.

The boiler is now ready for operation.

7.4.1 Saving the commissioning settings

You can save all current settings on the control panel. These settings can be restored if necessary, for example after replacement of the control unit.

1. Press the button.

2. Select > Advanced Service Menu > Save as commissioning settings.

3. Select Confirm to save the settings.

When you have saved the commissioning settings, the option Revert commissioning settings becomes available in the Advanced Service Menu.

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8.1 Control panel description

8 Operation

8.1.1 Description of the components

Fig.78 Components of the control panel

1 Rotary knob to select a tile, menu or setting 2

Button to confirm the selection

Back button to return to the previous level or previous menu

Menu button to return to the main menu 5 Display 6 LED for status indication:

continuous green = normal operation flashing green = warning continuous red = shutdown flashing red = lockout

8.1.2 Description of the home screen

This screen is shown automatically after start-up of the appliance. The control panel goes automatically in standby mode (black screen) if the screen is not touched for 5 minutes. Press one of the buttons on the control panel to activate the screen again.

You can navigate from any menu to the home screen by pressing the back button for several seconds.

The tiles on the home screen provide quick access to the corresponding menus. Use the rotary knob to navigate to the menu of your choice and

press the button to confirm the selection.

Fig.79 Icons on home screen

1 Tiles: the selected tile is highlighted 2 Date and time | Name of the screen (actual position in the menu) 3 Information about the selected tile 4 Error indicator (only visible if an error has been found) 5 Icon showing the navigation level:

: Chimney sweeper level : User level : Installer level

The installer level is protected by an access code. When this level is active, the status of the tile [

] changes from Off into

On.

8.1.3 Description of the main menu

You can navigate from any menu directly to the main menu by pressing the menu button

access level (user or installer).

. The number of accessible menus depends on the

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Fig.80 Items in the main menu

Tab.56 Icons

User level

Installer level

Chimney sweeper level System settings

Service Water pressure

Timer program DHW 1

Temporary overwrite of the timer program DHW 2

Holiday program DHW boost on

Manual Gas boiler

Energy-saving mode

Frost protection Burner on

Central heating on Outside temperature sensor

All zones (groups) DHW tank

Living room

Kitchen

Bedroom

Study

Cellar

(1) Adjustable icon for heating zone

(1)

A Date and time | Name of the screen (actual position in the menu) B Available menus C Brief explanation of the selected menu

Tab.54 Available menus for the user

Description Icon

System Settings

Version Information

Tab.55 Available menus for the installer

Description Icon

Installation Setup

Commissioning Menu

Advanced Service Menu

Error History

System Settings

Version Information

Meaning of the icons in the display

Information

Error display

Burner output level (1 to 5 bars, with each bar repre senting 20% output)

Solar calorifier

Cascade

Pump

Three-way valve

Page 79

8.1.4 Definition of zone

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8 Operation

Fig.81 Two zones

Fig.82 Activities of a timer program

Zone is the term given to the different hydraulic circuits CIRCA, CIRCB and so on. It designates several rooms of the house served by the same circuit. Tab.57 Example of two zones

Zone Factory name

1 Zone 1 CIRCA

2 Zone 2 CIRCB

8.1.5 Definition of activity

Activity is the term used when programming time slots in a timer program. The timer program sets the room temperature for different activities during the day. A temperature setpoint is associated with each activity. The last activity of the day is valid until the first activity of the next day. Tab.58 Example of activities

Start of the activity Activity Temperature setpoint

6:30 Morning (1) 20 °C

9:00 Away (2) 19 °C

17:00 Home (3) 20 °C

20:00 Evening (4) 22 °C

23:00 Sleep (5) 16 °C

8.2 Use of the control panel

For more information, see Changing the name of an activity, page 80

8.2.1 Accessing the installer level

Some parameters that may affect the operation of the boiler are protected by an access code. Only the installer is allowed to modify these parameters.

1. Select the tile [ ].

2. Enter code: 0012 When the installer level is active, the status of the tile [ ] changes

from Off into On.

3. To leave the installer level, select the tile [ ] > Confirm.

When the control panel is not used for 30 minutes, the installer level is left automatically.

8.2.2 Changing the display settings

1. Press the button.

2. Select System Settings .

3. Perform one of the operations described in the table below:

Tab.59 Display settings

System Settings menu Settings

Set Date and Time Set the currrent date and time

Select Country and Language Select your country and language

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System Settings menu Settings

Daylight Saving Time Enable or disable daylight saving to save energy during summer

Installer Details Enter the name and phone number of the installer

Set Heating Activity Names Create the names for the activities of the timer program

Set Screen Brightness Adjust the brightness of the screen

Set click sound Enable or disable the click sound of the rotary knob

License Information Read out detailed license information from the device platform application

8.2.3

You can change the name and symbol of a zone.

1. Select the tile of the zone you want to change.

2. Select Zone friendly Name

3. Change the name of the zone (20 characters maximum):

4. Select the sign on the screen when the name is complete.

5. Press the rotary knob to confirm the selection.

6. Select Icon display zone.

7. Change the symbol of the zone.

8.2.4

You can change the names of the activities in the timer program.

1. Press the button.

2. Select System Settings .

3. Select Set Heating Activity Names.

Changing the name and symbol of a zone

The Zone setup menu opens

A keyboard with letters, numbers and symbols is shown.

3.1.

Press the rotary knob to repeat a letter, number or symbol.

3.2.

Select to delete a letter, number or symbol.

3.3.

Select to add a space.

Changing the name of an activity

A list of 6 activities and their standard names is shown:

Activity 1 Sleep

Activity 2 Home

Activity 3 Away

Activity 4 Morning

Activity 5 Evening

Activity 6 Custom

4. Select an activity. A keyboard with letters, numbers and symbols is shown.

5. Change the name of the activity:

5.1.

Press the rotary knob to repeat a letter, number or symbol.

5.2.

Select to delete a letter, number or symbol.

5.3.

Select to add a space.

6. Select the sign on the screen when the name is complete.

7. Press the rotary knob to confirm the selection.

For more information, see Definition of activity, page 79

8.2.5 Setting the installer details

You can store your name and phone number in the control panel to be read by the user.

1. Press the button.

2. Select System Settings > Installer Details.

Page 81

Fig.83

AD-3000937-02

Max: 80˚C

Base: 31˚C

Slope: 1.0

AD-3000938-02

Base: 31˚C

Slope: 1.5

Max: 80˚C

AD-3000939-02

Slope: 1.5 Max: 84˚C

AD-3000940-02

Slope: 1.5 Max: 84˚C

Base: 29˚C

59˚C;0˚C

7686707 - v.01 - 06092018 AMC 81

Changing the heating curve

8 Operation

3. Enter the following data:

Installer name Name of the installer

Installer phone Phone number of the installer

8.2.6 Adjusting the heating curve

When an outside temperature sensor is connected to the installation, the relation between the outside temperature and the central heating flow temperature is controlled by a heating curve. This curve can be adjusted to the requirements of the installation.

1. Select the tile of the zone you want to configure.

2. Select Control strategy.

3. Select the setting Outdoor Temp based or Outdoor&Room based. The option Heating Curve appears in the Zone setup menu.

4. Select Heating Curve. A graphic display of the heating curve is shown.

5. Adjust the following parameters:

A Slope: Slope of the heating curve:

Floor heating circuit: slope between 0.4 and 0.7 Radiator circuit: slope at approximately 1.5

B Max: Maximum temperature of the heating circuit

C Base: Ambient temperature setpoint

D xx°C ; xx°CRelationship between the heating circuit flow tem

perature and the outdoor temperature. This infor mation is visible throughout the slope.

8.2.7 Activating the automatic (re)filling unit

If the appliance has an automatic re(filling) unit, you have to activate the Auto Filling function and configure the corresponding parameters.

1. Select the tile [ ].

2. Select Settings.

3. Set the Auto Filling parameter:

Option Description

Disabled The automatic (re)filling function is switched off

Manual The installation will be topped up after confirmation

by the user when the water pressure has dropped below the minimum water pressure

Auto The installation will be topped up automatically

when the water pressure has dropped below the minimum water pressure

4. Select Parameters, counters, signals > Parameters.

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10 9 8 7 6 5 4 3 2 1

23 20

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Fig.84

Screed drying progam

5. Check if the settings of the other parameters (for example the Min.

water pressure and Operational Pressure) are suitable for the installation and change the settings, if necessary.

8.2.8 Activating the screed drying program

The screed drying program reduces the drying time of a freshly poored screed floor. Every day at midnight, the temperature setpoint is recalculated and the number of days is decremented.

1. Select the tile of the zone with the screed floor.

2. Select Set Screed Drying

3. Set the following parameters:

1 Zone screed drying Number of days needed for drying

2 ScreedStartTemp Start temperature of the screed dry

ing program

3 ScreedStopTemp End temperature of the screed dry

ing program

The screed drying program will start and continue for the selected number of days.

8.3 Start-up

8.4 Shutdown

8.5

Frost protection

Start the boiler up as follows:

1. Open the boiler gas tap.

2. Turn the boiler on

3. Turn on the boiler using the on/off switch.

4. The boiler will also start an automatic venting cycle lasting around 3

minutes.

5. Check the water pressure of the central heating system shown on the

control panel display. If necessary, top up the central heating system.

The current operating condition of the boiler is shown by the status signal on the control panel.

If the central heating is not due to be used for a long period of time, it is recommended that the boiler be disconnected from the power supply.

1. Turn off the boiler using the on/off switch.

2. Shut off the gas supply.

3. Keep the area frost-free.

Caution

Tap the boiler and central heating system if you are not going to use your home or the building for a long time and there is a chance of frost. The frost protection does not work if the boiler is out of operation. The built-in boiler protection is only activated for the boiler and not for the system and radiators. Open the valves of all the radiators connected to the system.

Set the temperature control low, for example to 10°C.

If the temperature of the central heating water in the boiler drops too low, the built-in boiler protection system is activated. This system works as follows:

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8 Operation

7686707 - v.01 - 06092018 AMC 83

If the water temperature is lower than 7°C, the pump switches on. If the water temperature is lower than 4°C, the boiler switches on. If the water temperature is higher than 10℃, the boiler shuts down and the pump continues to run for a short time.

To prevent the system and radiators freezing in frost-sensitive areas (e.g. a garage), a frost thermostat or, if feasible, an outside sensor can be connected to the boiler.

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9 Settings

9.1 Setting the parameters

Fig.85 Parameters, counters, signals

You can change the parameters and settings of the appliance and the connected control boards, sensors etc. to configure the installation.

1. Press the button.

2. Select > Installation Setup.

3. Select the zone or device you want to configure.

4. Select Parameters, counters, signals > Parameters to change a

parameter.

5. If available, select Adv. Parameters to change a parameter at the

advanced installer level.

Parameters Counters Signals Adv. Parameters Adv. Counters Adv. Signals

B List of settings or values

The boiler’s control unit is set for the most common central heating systems. These settings will ensure that virtually every central heating system operates effectively. The user or the installer can optimise the parameters as required.

9.2

Caution Changing the factory settings may adversely affect the operation of the boiler.

List of parameters

The parameters are arranged in three levels:

1 End user level 2 Installer level 3 Advanced installer level

The code of the parameters always contain two letters and three numbers. The letters stand for:

AP Appliance related parameters CP Zone related parameters DP Domestic hot water related parameters GP Gas fired heat engine related parameters PP Central heating related parameters

Important All possible options are indicated in the adjustement range. The display of the boiler only shows the relevant settings for the appliance.

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9.2.1 CU-GH08 control unit settings

7686707 - v.01 - 06092018 AMC 85

Important

All tables show the factory setting for the parameters. The tables also list parameters that are only applicable if the boiler is combined with other equipment such as an outdoor sensor or automatic refill device.

9 Settings

Tab.60

On > > Installation Setup > CU-GH08 > CIRCA ( Direct zone ) > Parameters, counters, signals > Parameters

Code Text display Description Adjustment range 10 15 25 25/28 MI35

Zone friendly Name

ZoneStartTimeHol iday

ZoneEndTime Holiday

ZoneEnd Change Mode

CP000 MaxZoneTFlowSe

tpoint

CP010 Tflow setpoint

zone

Friendly Name of the user zone

Zone Start Time holiday Mode

Zone End Time of holiday Mode

Zone End Time of change Mode

Maximum Flow Temperature setpoint zone

Zone flow temperature setpoint, used when the

0 0 0 0 0

- - - - -

0 °C - 90 °C 80 80 80 80 80

zone is set to a fixed flow setpoint.

CP020 Zone Function Functionality of the zone 0 = Disable

1 1 1 1 1

1 = Direct

CP060 RoomT. Holiday Wished room zone

5 °C - 20 °C 6 6 6 6 6 temperature on holiday period

CP070 MaxReducedRoo

mT.Lim

Max Room Temperature limit of the circuit in reduced

5 °C - 30 °C 16 16 16 16 16

mode, that allows switching to comfort mode

CP080 User T.Room

Activity

CP081 User T.Room

Activity

CP082 User T.Room

Activity

CP083 User T.Room

Activity

CP084 User T.Room

Activity

CP085 User T.Room

Activity

CP130 T.OutdoorToZone Assigning the outdoor

Room setpoint temperature of the user zone activity

5 °C - 30 °C 16 16 16 16 16

5 °C - 30 °C 20 20 20 20 20

5 °C - 30 °C 6 6 6 6 6

5 °C - 30 °C 21 21 21 21 21

5 °C - 30 °C 22 22 22 22 22

5 °C - 30 °C 20 20 20 20 20

0 - 4 0 0 0 0 0 sensor to zone …

CP200 Manu

ZoneRoomTempS et

CP210 Zone HCZP

Comfort

Manually setting the room temperature setpoint of the zone

Comfort footpoint of the temperature of heat curve of

5 °C - 30 °C 20 20 20 20 20

15 °C - 90 °C 15 15 15 15 15

the circuit

CP220 Zone HCZP

Reduced

Reduced footpoint of the temperature of heat curve of

15 °C - 90 °C 15 15 15 15 15

the circuit

CP230 Zone Heating

Curve

Heating curve temperature gradient of the zone

0 - 4 1.5 1.5 1.5 1.5 1.5

Page 86

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86 AMC 7686707 - v.01 - 06092018

Code Text display Description Adjustment range 10 15 25 25/28 MI35

CP240 ZoneRoomUnitInfl Adjustment of the influence

0 - 10 3 3 3 3 3 of the zone room unit

CP250 CalSondeAmbZoneCalibration of Zone Room

-5 °C - 5 °C 0 0 0 0 0

Unit

CP320 OperatingZoneModeOperating mode of the zone 0 = Scheduling

1 = Manual

2 = Antifrost

3 = Temporary

CP340 TypeReducedNigh

tMode

CP470 Zone screed

drying

CP480 ScreedStartTemp Setting of the start

Type of reduced night mode, stop or maintain heating of circuit

Setting of the screed drying program of the zone

0 = Stop heat demand

1 = Continue heat

demand

0 Days – 30 Days 0 0 0 0 0

20 °C – 50 °C 20 20 20 20 20 temperature of the screed drying program of the zone

CP490 ScreedStopTemp Setting of the stop

20 °C – 50 °C 20 20 20 20 20 temperature of the screed drying program of the zone

CP510 Temporary Room

Setp

Temporary room setpoint per zone

5 °C – 30 °C 20 20 20 20 20

CP550 Zone, fire place Fire Place mode is active 0 = Off

1 = On

CP570 ZoneTimeProg

Select

Time Program of the zone selected by the user

0 = Schedule 1

1 = Schedule 2

2 = Schedule 3

CP660 Icon display zone Choice icon to display this

zone

0 = None

1 = All

2 = Bedroom

3 = Livingroom

4 = Study

5 = Outdoor

6 = Kitchen

7 = Basement

CP730 Zone Heat up

speed

Selection of heat up speed of the zone

0 = Extra Slow

1 = Slowest

2 = Slower

3 = Normal

4 = Faster

5 = Fastest

CP740 Zone cool down

speed

Selection of cool down speed of the zone

0 = Slowest

1 = Slower

2 = Normal

3 = Faster

4 = Fastest

CP750 MaxZone Preheat

Maximum zone preheat time 0 Min – 240 Min 90 90 90 90 90

time

CP770 Zone Buffered The zone is after a Buffer

tank

CP780 Control strategy Selection of the control

strategy for the zone

0 = No

1 = Yes

0 = Automatic

1 = Room Temp based

2 = Outdoor Temp

based

3 = Outdoor&Room

based

1 1 1 1 1

0 0 0 0 0

3 3 3 3 3

2 2 2 2 2

0 0 0 0 0

Page 87

9 Settings

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Tab.61

On > > Installation Setup > CU-GH08 > DHW ( Internal DHW ) > Parameters, counters, signals > Parameters

Code Text display Description Adjustment range 10 15 25 25/28 MI35

DP060 DHW timeprog.

select

Time program selected for DHW.

0 = Schedule 1 1 = Schedule 2

0 0 0 0 0

2 = Schedule 3

DP070 DHW comfort

setpoint

Comfort temperature setpoint from the Domestic

40 °C – 65 °C 60 60 60 55 60

Hot Water tank

DP080 DHW reduced

setpoint

Reduced temperature setpoint from the Domestic

7 °C – 50 °C 15 15 15 15 15

Hot Water tank

DP160 DHW AntiLeg

Setpoint

DP170 Start time holiday Start time of holiday Time

Setpoint for DHW anti legionella

50 °C – 90 °C 65 65 65 65 65

- - - - -

stamp

DP180 End time holiday End time of holiday

- - - - -

Timestamp

DP190 End change mode End change mode Time

- - - - -

TimeStamp

DP200 DHW mode DHW primary mode current

working setting

0 = Scheduling 1 = Manual 2 = Antifrost 3 = Temporary

DP337 DHW holiday

setpoint

Holiday temperature setpoint from the Domestic Hot

10 °C – 60 °C 10 10 10 10 10

Water tank

Tab.62

On > > Installation Setup > CU-GH08 > DHW ( Internal DHW ) > Parameters, counters, signals > Parameters

Code Text display Description Adjustment range 10 15 25 25/28 MI35

DP003 Abs. max fan

DHW

DP007 Dhw 3wv Standby Position of three way valve

DP020 Postrun DHW

pump/3wv

Maximum fan speed on Domestic Hot Water

during standby

Post run time of the DHW pump/3 way valve after

1000 Rpm 7000 Rpm 3300 4500 5600 6200 6200

0 = CH position

0 1 0 1 0

1 = DHW position

0 Sec – 99 Sec 10 10 10 10 10

DHW production

DP070 DHW comfort

setpoint

Comfort temperature setpoint from the Domestic

40 °C – 65 °C 60 60 60 55 60

Hot Water tank

Tab.63

On > > Installation Setup > CU-GH08 > Outdoor sensor setup > Parameters, counters, signals > Parameters

Code Text display Description Adjustment range 10 15 25 25/28 MI35

AP056 Outdoor sensor Enable outdoor sensor 0 = No outside sensor

1 1 1 1 1 1 = AF60 2 = QAC34

AP073 Summer Winter Outdoor temperature: upper

10 °C – 30 °C 22 22 22 22 22

limit for heating

AP074 Force summer

mode

The heating is stopped. Hot water is maintained. Force

0 = Off 1 = On

0 0 0 0 0

Summer Mode

AP079 Building Inertia Inertia of the building used

0 – 15 3 3 3 3 3

for heat up speed

Page 88

9 Settings

88 AMC 7686707 - v.01 - 06092018

Code Text display Description Adjustment range 10 15 25 25/28 MI35

AP080 Frost min out

temp

Outside temperature below which the antifreeze

-60 °C - 25 °C -10 -10 -10 -10 -10

protection is activated

AP091 Outside Sens.

Source

Type of outside sensor connection to be used

0 = Auto 1 = Wired sensor

0 0 0 0 0

2 = Wireless sensor 3 = Internet measured 4 = None

AP108 OutsideSensorEn

abled

Enable the function Outside Sensor

0 = Auto 1 = Wired sensor

0 0 0 0 0

2 = Wireless sensor 3 = Internet measured 4 = None

Tab.64

On > > Installation Setup > CU-GH08 > Auto filling CH > Parameters, counters, signals > Parameters

Code Text display Description Adjustment range 10 15 25 25/28 MI35

AP006 Min. water

pressure

Appliance will report low water pressure below this

0 bar – 6 bar 0.8 0.8 0.8 0.8 0.8

value

AP014 Auto Filling Setting to enable or disable

the automatic refill device. It can be set to auto, manual

0 = Disabled 1 = Manual 2 = Auto

1 1 1 1 1

or off

AP023 Filling Inst

Timeout

Maximum time the automatic filling procedure

0 Min – 90 Min 10 10 10 10 10

may last at installation

AP051 Filling Interval The minimum time that is

0 Days – 65535 Days 90 90 90 90 90

allowed between two top-up fillings

AP069 Top up timeout Maximum time the

0 Min – 60 Min 2 2 2 2 2

automatic topping up procedure may last

AP070 Operational

Pressure

The operational water pressure the device should

0 bar – 2.5 bar 1.5 1.5 1.5 1.5 1.5

be working on

AP071 InstallMaxTimeOutMaximum time that is

0 Sec – 3600 Sec 840 840 840 840 840

needed to fill the complete installation

Tab.65

On > > Installation Setup > CU-GH08 > Shower time function

Code Text display Description Adjustment range 10 15 25 25/28 MI35

DP357 ShowerZone T

warning

DP367 ShowerZoneTime

Action

Time before Shower Zone is warning

Action when Shower Zone time has elapsed

0 Min – 180 Min 0 0 0 0 0

0 = Off

0 0 0 0 0 1 = Warning 2 = Reduce DHW set point

DP377 DHWred

Showerlimited

Reduced DHW setpoint during shower limitation of

20 °C – 65 °C 40 40 40 40 40

the zone

Page 89

9 Settings

7686707 - v.01 - 06092018 AMC 89

Tab.66

On > > Installation Setup > CU-GH08 > Gas fired appliance > Parameters, counters, signals > Parameters

Code Text display Description Adjustment range 10 15 25 25/28 MI35

AP001 BL input setting Blocking input setting (1:

Full blocking, 2: Partial blocking, 3: User reset

1 = Full blocking 2 = Partial blocking 3 = User reset locking

1 1 1 1 1

locking)

AP002 Manual Heat

Demand

Enable manual heat demand function

0 = Off 1 = With setpoint

0 0 0 0 0

2 = TOutdoor Control

AP003 Flue Valve Wait

Time

Wait time after burner command to open flue gas

0 Sec – 255 Sec 0 0 0 0 0

valve

AP006 Min. water

pressure

Appliance will report low water pressure below this

0 bar – 6 bar 0.8 0.8 0.8 0.8 0.8

value

AP008 Time release

signal

The appliance will wait x sec (0=off) for the release

0 Sec – 255 Sec 0 0 0 0 0

contact to close in order to start the burner

AP009 Service hours

burner

AP010 Service

notification

AP011 Service hours

mains

AP016 CH function on Enable central heating heat

AP017 DHW function on Enable domestic hot water

AP026 Setpoint manual HDFlow temperature setpoint

Burning hours before raising a service notification

The type of service needed based on burn and powered hours

Hours powered to raise a service notification

demand processing

heat demand processing

0 Hours – 51000 Hours 6000 6000 6000 6000 6000

0 = None

0 0 0 0 0 1 = Custom notification 2 = ABC notification

0 Hours – 51000 Hours 35000 35000 3500035000 35000

0 = Off

1 1 1 1 1 1 = On

0 = Off

1 1 1 1 1 1 = On

10 °C – 90 °C 40 40 40 40 40

for manual heat demand

AP063 CH Set Max

System

Maximum flow temperature setpoint for burning at

20 °C - 90 °C 90 90 90 90 90

central heating

AP102 Boiler Pump

function

Configuration of the boiler pump as zone pump or

0 = No 1 = Yes

0 0 0 0 0

system pump (feed lowloss header)

DP003 Abs. max fan

DHW

DP020 Postrun DHW

pump/3wv

Maximum fan speed on Domestic Hot Water

Post run time of the DHW pump/3 way valve after

1000 Rpm – 7000 Rpm 3300 4500 5600 6200 6200

0 Sec – 99 Sec 10 10 10 10 10

DHW production

GP007 Fan RPM Max CH Maximum fan speed during

1400 Rpm – 7000 Rpm 3300 4500 5600 4600 6200

Central Heating mode

GP008 Fan RPM Min Minimum fan speed during

1400 Rpm – 4000 Rpm 1800 1800 1850 1850 1850

Central Heating + Domestic Hot Water mode

GP009 Fan RPM Start Fan speed at appliance start 1000 Rpm – 4000 Rpm 3300 3700 3000 3000 4000

GP010 GPS Check Gas Pressure Switch check

on/off

GP017 Max power Maximum power percentage

0 = No

0 0 0 0 0 1 = Yes

0 kW – 80 kW 24 24 32.3 32.3 40.3

in kilo Watt

GP021 Temp diff

Modulating

Modulate back when delta temperature is large then

10 °C – 40 °C 25 25 25 25 25

this treshold

Page 90

AD-3001170-01

7000

0 1000 2000 3000 4000 5000

6000

F=M

AD-3000750-01

7000

0 1000 2000 3000 4000 5000

6000

F=M

AD-3001172-01

7000

0 1000 2000 3000 4000 5000

6000

9 Settings

90 AMC 7686707 - v.01 - 06092018

Code Text display Description Adjustment range 10 15 25 25/28 MI35

GP022 Tfa Filter Tau Tau factor for average flow

1 – 255 36 36 36 36 36

temperature calculation

GP050 Power Min Minimum power in kilo Watt

0 kW – 80 kW 2.6 2.6 2.6 2.6 4.5

for RT2012 calculation

PP014 ChPumpDTReduc

tion

Reduction of temperature delta modulating for pump

0 °C – 40 °C 5 5 5 5 5

modulation

PP015 CH Pump postrun

time

PP016 Max. CH pump

speed

PP017 ChPumpSpeedMa

xFactor

Central heating pump post run time

Maximum central heating pump speed (%)

Maximum central heating at minimum load as

0 Min – 99 Min 1 1 1 1 1

20 % – 100 % 70 70 70 70 70

0 % 100 % 30 30 30 30 30

percentage of max pump speed

PP018 Min CH pump

speed

PP023 Start hysteresis CHHysteresis to start burner in

Minimum central heating pump speed (%)

20 % – 100 % 55 55 55 55 55

1 °C – 10 °C 10 10 10 10 10

heating mode

9.3 Setting the maximum heat input for CH operation

See the graphs for the relationship between load and speed for natural gas. The speed can be changed using parameter GP007.

Fig.86 AMC 15

Fig.87 AMC 25

Fig.88 AMC 25/28 MI

M Maximum heat input

F Factory setting Q Input (Hi) (kW) R Fan speed (rpm)

M Maximum heat input

F Factory setting Q Input (Hi) (kW) R Fan speed (rpm)

M Maximum heat input

F Factory setting Q Input (Hi) (kW) R Fan speed (rpm)

Page 91

AD-3001173-01

7000

0 1000 2000 3000 4000 5000

6000

F=M

AD-3001121-01

°C

9 Settings

7686707 - v.01 - 06092018 AMC 91

Fig.89 AMC 35

M Maximum heat input

F Factory setting Q Input (Hi) (kW) R Fan speed (rpm)

9.4

Settings SCB-10 print

9.4.1 Setting the 0-10 Volt input function of SCB-10

There are three options for the 0-10 Volt input control of the SCB-10 print:

disable the input function. the input is temperature based. the input is heat output based

Tab.67

Code Display text Description Range

EP014 SCB func. 10V PWMin Smart Control Board function 10 Volt PWM

EP030 Min Setp Temp 0-10V Sets the minimum set point temperature for 0

EP031 Max Setp Temp 0-10V Sets the maximum set point temperature for 0

EP032 Min Setp Power 0-10V Sets the minimum set point power for 0 - 10

EP033 Max Setp Power 0-10V Sets the maximum set point power for 0 - 10

EP034 Min Setp Volt 0-10V Sets the minimum set point voltage for 0 - 10

EP035 Max Setp Volt 0-10V Sets the maximum set point voltage for 0 - 10

button > Installation Setup > SCB-10 > 0-10 volt input > Parameters

input

- 10 volts for the Smart Control Board

volts for the Smart Control Board

volts

volts for the Smart Control Board

volts

0 = Off 1 = Temperature control 2 = Power control

0 °C - 100 °C

0.5 °C - 100 °C

0 % - 100 %

5 % - 100 %

0 V - 10 V

9.4.2

Fig.90 Temperature regulation

Analogue temperature regulation (°C)

EP030

EP031

EP034

EP035

The 0–10 V signal controls the boiler supply temperature. This control modulates on the basis of flow temperature. The output varies between the minimum and maximum value on the basis of the flow temperature set point calculated by the controller.

Tab.68 Temperature regulation

Input signal (V) Temperature °C Description

0–1.5 0–15 Boiler off

1.5–1.8 15–18 Hysteresis

1.8–10 18–100 Desired temperature

Page 92

AD-3000936-01

9 Settings

92 AMC 7686707 - v.01 - 06092018

9.4.3 Configuring a DHW tank with two sensors

When a domestic hot water tank with two sensors is connected to the boiler, the loading of the tank depends on the water temperature measured by the two sensors:

Loading of the tank will start when the top sensor measures a temperature below (desired setpoint + CP700 – CP420). Loading of the tank will stop when the bottom sensor measures a temperature above (desired setpoint + CP700).

Tab.69

Code Display text Description Range

CP000 MaxZoneTFlowSetpoint Maximum Flow Temperature setpoint zone 7 °C – 100 °C

CP420 ZoneDhwHysterisis Trip differential for DHW production 1 °C – 60 °C

CP700 DHW Cal Offset zone Offset for calorifier sensor per zone 0 °C – 30 °C

9.5

Fig.91 Parameters, counters, signals

button > Installation Setup > SCB-10 > DHW tank > Parameters, counters, signals > Parameters

Reading out measured values

The control unit continually registers various values from the boiler and the connected sensors. These values can be read on the control panel of the boiler.

1. Press the button.

2. Select > Installation Setup.

3. Select the zone or device you want to read out.

4. Select Parameters, counters, signals > Counters or Signals to read out a counter or signal.

5. If available, select Adv. Counters or Adv. Signals to read out counters or signals at the advanced installer level.

Parameters Counters Signals Adv. Parameters Adv. Counters Adv. Signals

B List of settings or values

9.6

List of measured values

9.6.1 CU-GH08 control unit counters

Tab.70

Code Text display Description Range

AC016 Amount Autofillings Filling counter, count the amount of

Tab.71

Code Text display Description Range

AC002 Service Burning hrs Number of hours that the appliance has

AC003 Hours Op. Service Number of hours since the previous

On > > Installation Setup > CU-GH08 > Auto filling CH > Parameters, counters, signals > Counters

0 - 65534

automatic filling loops

On > > Installation Setup > CU-GH08 > Gas fired appliance > Parameters, counters, signals > Counters

been producing energy since last service

servicing of the appliance

0 Hours - 131068 Hours

Page 93

Code Text display Description Range

7686707 - v.01 - 06092018 AMC 93

AC004 Burner Starts Number of generator startings since the

0 - 4294967294

previous servicing.

AC026 Pump running hours Counter that shows the number of pump

0 Hours - 65534 Hours

running hours

AC027 Pump starts Counter that shows the number of pump

0 - 65534

starts

DC002 DHW valve cycles Numbers of Domestic Hot Water

0 - 4294967294

diverting valve cycles

DC003 Hrs DHW 3wv Number of hours during which the

0 Hours - 65534 Hours

diverting valve is in DHW position

DC004 DHW burner starts Number of burner starts for Domestic

0 - 65534

Hot Water

DC005 DHW burning hours Number of burning hours in Domestic

0 Hours - 65534 Hours

Hot Water

GC007 Failed starts Number of failed starts 0 - 65534

PC001 ChCtrTotalPowerCons. Total power consumption used by

0 kW - 4294967294 kW

Central Heating

PC002 Burner starts total Total number of burner starts. For

0 - 4294967294

heating and domestic hot water

PC003 Hrs Burning total Total number of burning hours. For

0 Hours - 65534 Hours

heating and domestic hot water

PC004 Burner flame loss Number of burner flame loss 0 - 65534

9 Settings

9.6.2 CU-GH08 control unit signals

Tab.72

Code Text display Description Range

DM029 DHW setpoint Domestic Hot Water temperature

Tab.73

Code Text display Description Range

AM001 DHW active Is the appliance currently in domestic hot

AM010 Pump speed The current pump speed 0 % - 100 %

AM016 System Flow Temp Flow temperature of appliance. -25 °C - 150 °C

AM018 T return Return temperature of appliance. The

AM040 Control temperature Temperature used for hot water control

DM002 DHWFlowSpeed Actual DHW combi flow rate 0 l/min - 25 l/min

DM005 DhwSolarTankTemp Domestic Hot Water solar tank

DM008 DHW out temp Temperature sensor for the tap

On > > Installation Setup > CU-GH08 > > DHW ( Internal DHW ) > Parameters, counters, signals > Signals

0 °C - 100 °C

setpoint

On > > Installation Setup > CU-GH08 > DHW ( Internal DHW ) > Parameters, counters, signals > Signals

Anti legionella act. Anti legionella is active 0 = Off

1 = On

0 = Off

water production mode?

1 = On

-25 °C - 150 °C temperature of the water entering the appliance.

0 °C - 250 °C

algorithms.

-25 °C - 150 °C temperature

-25 °C - 150 °C temperature leaving the appliance

Page 94

9 Settings

94 AMC 7686707 - v.01 - 06092018

Tab.74

On > > Installation Setup > CU-GH08 > Outdoor sensor setup > Parameters, counters, signals > Signals

Code Text display Description Range

Wireless T.Outside Outside temperature measured by a

-50 °C - 60 °C

wireless source

Low average Out Temp Low average of outside sensor

-60 °C - 60 °C

temperature

High average OutTemp High average of outside sensor

-60 °C - 60 °C

temperature

Wired T.Outside Outside temperature measured by a

-50 °C - 60 °C

wired source

Outside Sens. Source Outside sensor connection used 1 = Wired sensor

2 = Wireless sensor 3 = Internet measured 4 = None

AM027 Outside temperature Instantaneous outside temperature -60 °C - 60 °C

AM046 Internet T.Outside Outside temperature received from an

-70 °C - 70 °C

internet source

AM091 SeasonMode Seasonal mode active (summer / winter) 0 = Winter

1 = Frost protection 3 = Summer

AP078 Out sensor detected Outside sensor detected in the

application

0 = No 1 = Yes

Tab.75

On > > Installation Setup > CU-GH08 > Auto filling CH > Parameters, counters, signals > Signals

Code Text display Description Range

Auto filling active Setting to enable or disable the

autofilling feature

0 = Standby 1 = Filling Needed 2 = Filling Active 3 = Auto filling pending

AM019 Water pressure Water pressure of the primary circuit. 0 bar - 4 bar

Tab.76

On > > Installation Setup > CU-GH08 > Gas fired appliance > Parameters, counters, signals > Signals

Code Text display Description Range

No of status items Status bytes number of different items 0 - 255

Frost protect active Frost protect is active 0 = No

1 = Yes

Comfort mode active Comfort mode is active 0 = No

1 Yes

DHW blocking active Domestic hot water preparation blocking

is active

0 = No 1 = Yes

Anti legionella act. Anti legionella is active 0 = Off

1 = On

DHW active Domestic hot water preparation is active 0 = No

1 = Yes

DHW Enabled Domestic hot water preparation is

enabled

0 = No 1 = Yes

CH Enabled Central heating production is enabled 0 = No

1 = Yes

CurrOrUpcomServNotif Current or upcoming service notification 0 = None

1 = A 2 = B 3 = C 4 = Custom

PowerActualU8 Actual relative power produced for PDO

0 % - 100 %

output

Page 95

Code Text display Description Range

7686707 - v.01 - 06092018 AMC 95

ChimneyModeStatus Status of the Chimney mode 0 = Off

1 = Low power 2 = Medium power 3 = High power 4 = Cooling

AM001 DHW active Is the appliance currently in domestic hot

water production mode?

0 = Off 1 = On

AM010 Pump speed The current pump speed 0 % - 100 %

AM011 Service required? Is service currently required? 0 = No

1 = Yes

AM015 Pump running? Is the pump running? 0 = Inactive

1 = Active

AM016 System Flow Temp Flow temperature of appliance. -25 °C - 150 °C

AM018 T return Return temperature of appliance. The

-25 °C - 150 °C temperature of the water entering the appliance.

AM019 Water pressure Water pressure of the primary circuit. 0 bar - 4 bar

AM022 On / Off heat demand On / Off heat demand 0 = Off

1 = On

AM024 Actual rel. Power Actual relative power of the appliance 0 % - 100 %

AM027 Outside temperature Instantaneous outside temperature -60 °C - 60 °C

AM033 Next Service Ind. Next service indication 0 = None

1 = A 2 = B 3 = C 4 = Custom

AM036 Flue gas temperature Temperature of the exhaust gas leaving

0 °C 250 °C

the appliance

AM037 3 way valve Status of the three way valve 0 = CH

1 = DHW

AM040 Control temperature Temperature used for hot water control

0 °C - 250 °C

algorithms.

AM043 Pwr dwn reset needed A power down reset is needed 0 = No

1 = Yes

AM055 FlueGas temperature2 Temperature of the exhaust gas leaving

0 °C 250 °C

the appliance

AM101 Internal setpoint Internal system flow temperature

0 °C - 250 °C

setpoint

BM000 Dhw Temperature Dhw Temperature depending on

-25 °C - 150 °C loadtype this is TankTemperature or DhwOutTemperature

GM001 Actual fan RPM Actual fan RPM 0 Rpm - 12000 Rpm

GM002 Fan RPM setpoint Actual fan RPM setpoint 0 Rpm - 12000 Rpm

GM003 Flame detection Flame detection 0 = Off

1 = On

GM004 Gas valve 1 Gas valve 1 0 = Open

1 = Closed 2 = Off

GM005 Gas valve 2 Gas valve 2 0 = Open

1 = Closed 2 = Off

GM006 GPS status Gas Pressure Switch status 0 = Open

1 = Closed 2 = Off

GM007 Ignite Appliance is igniting 0 = Off

1 = On

GM008 Actual flame current Actual flame current measured 0 µA - 25 µA

GM010 Power available Available power in % of maximum 0 % - 100 %

9 Settings

Page 96

9 Settings

96 AMC 7686707 - v.01 - 06092018

Code Text display Description Range

GM011 Power setpoint Power setpoint in % of maximum 0 % - 100 %

GM012 Release Input Release signal for the CU 0 = No

1 = Yes

GM013 Blocking Input Blocking input status 0 = Open

1 = Closed 2 = Off

GM025 STB status High limit status (0 = open, 1 = closed) 0 = Open

1 = Closed 2 = Off

GM027 Flame Test Active Flame test 1=active, 0=inactive 0 = Inactive

1 = Active

GM044 ControlledStopReason Possible reason for Controlled Stop 0 = None

1 = CH Blocking 2 = DHW Blocking 3 = Wait for burner 4 = TFlow > absolute max 5 = TFlow > start temp. 6 = Theat exch. > Tstart 7 = Avg Tflow > Tstart 8 = TFlow > max setpoint 9 = T difference too big 10 = TFlow > stop temp. 11 = Avg Tflow > Tstop

PM002 CH Setpoint External winning Central Heating

0 °C - 250 °C

setpoint

PM003 ChTflowAverage Actual average flow temperature -25 °C - 150 °C

Tab.77 Status numbers

Status Description

0 Standby

1 Heat Demand

2 Burner Start

3 Burning CH

4 Burning Dhw

5 Burner Stop

6 Pump Post Run

7 Cooling Active

8 Controlled Stop

9 Blocking Mode

10 Locking Mode

11 Load test min

12 Load test CH max

13 Load test DHW max

15 Manual Heat Demand

16 Frost Protection

17 DeAiration

18 Control unit Cooling

19 Reset In Progress

20 Auto Filling

21 Halted

22 Forced calibration

23 Factory test

9.6.3 Status and sub-status

The status and sub-status are only shown if applicable.

Page 97

Status Description

7686707 - v.01 - 06092018 AMC 97

200 Device Mode

254 Unknown

Tab.78 Sub-status numbers

Sub-status Description

0 Standby

1 AntiCycling

2 CloseHydraulicValve

3 ClosePump

4 WaitingForStartCond.

10 CloseExtGasValve

11 StartToGlueGasValve

12 CloseFlueGasValve

13 FanToPrePurge

14 WaitForReleaseSignal

15 BurnerOnCommandToSu

16 VpsTest

17 PreIgnition

18 Ignition

19 FlameCheck

20 Interpurge

30 Normal Int.Setpoint

31 Limited Int.Setpoint

32 NormalPowerControl

33 GradLevel1PowerCtrl

34 GradLevel2PowerCtrl

35 GradLevel3PowerCtrl

36 ProtectFlamePwrCtrl

37 StabilizationTime

38 ColdStart

39 ChResume

40 SuRemoveBurner

41 FanToPostPurge

42 OpenExt&FlueGasValve

43 StopFanToFlueGVRpm

44 StopFan

45 LimitedPwrOnTflueGas

46 AutoFillingInstall.

47 AutoFillingTopUp

48 Reduced Set Point

60 PumpPostRunning

61 OpenPump

62 OpenHydraulicValve

63 SetAntiCycleTimer

65 HeatPumpRelieved

66 HPFlowOverTMaxBckpON

67 ExtCondStopHeatPump

68 HybridStopHeatPump

69 DefrostWithHP

70 DefrostWithBckp

71 DefrostWithHPAndBckp

72 PumpSource&BackupRun

9 Settings

Page 98

AD-3000935-01

A B

9 Settings

98 AMC 7686707 - v.01 - 06092018

Sub-status Description

73 HPFlowOverTMax

74 SourcePumpPostRun

75 HumiditySensorStopHP

76 WaterFlowStopHP

78 HumidityInt.Setpoint

79 HP&BackupRelieved

80 HPRelievedForCooling

81 OutsideTempStopHP

82 HeatPumpOffOverLimit

83 DeAirPumpOn&ValveCH

84 DeAirPumpOn&ValveDhw

85 DeAirPumpOff&ValveCH

86 DeAirPumpOff&ValvDhw

88 BLInputBackupLimited

89 HPLimited

90 Backup&HPLimited

91 BLInputLowTariff

92 PV-WithHP

93 PV-WithHP&Bckp

94 BLInputSmartGrid

95 WaitingForWaterpress

96 NoProducerAvailable

102 FreeCoolingPumpOff

103 FreeCoolingPumpON

104 SourcePumpPreRunning

105 Calibration

200 Initialising Done

201 Initialising Csu

202 Init. Identifiers

203 Init.BL.Parameter

204 Init. Safety Unit

205 Init. Blocking

254 StateUnknown

255 SuOutOfResetsWait1Hr

9.7 Resetting or restoring settings

9.7.1 Resetting the configuration numbers CN1 and CN2

The configuration numbers must be reset when indicated by an error message or when the control unit has been replaced. The configuration numbers can be found on the data plate of the appliance.

Fig.92 Configuration numbers

A Select the control unit B Extra information

C Configuration numbers

1. Press the button.

2. Select Advanced Service Menu > Set Configuration Numbers.

3. Select the control unit you want to reset.

4. Select and change the CN1 setting.

5. Select and change the CN2 setting.

6. Select Confirm to confirm the changed numbers.

Page 99

9 Settings

7686707 - v.01 - 06092018 AMC 99

9.7.2 Carrying out an auto-detect for the CAN matrix

When a control board has been replaced or removed from the boiler, this function must be used to detect all devices connected to the CAN bus.

1. Press the button.

2. Select Advanced Service Menu > Auto Detect.

3. Select Confirm to carry out the auto-detect.

9.7.3 Restoring the commissioning settings

This option is only available when the commissioning settings were saved on the control panel and allows you to restore these settings.

1. Press the button.

2. Select Advanced Service Menu > Revert commissioning settings.

3. Select Confirm to restore the commissioning settings.

9.7.4 Resetting to factory settings

You can reset the boiler to the default factory settings.

1. Press the button.

2. Select Advanced Service Menu > Reset to Factory Settings.

3. Select Confirm to restore the factory settings.

Page 100

10 Maintenance

100 AMC 7686707 - v.01 - 06092018

10 Maintenance

10.1 General

Perform the standard checking and maintenance procedures once a year. Perform the specific maintenance procedures if necessary.

Caution

Maintenance operations must be completed by a qualified installer. During inspection or maintenance work, always replace all gaskets of the disassembled parts. Replace defective or worn parts with original spare parts. An annual inspection is mandatory.

10.2

Standard inspection and maintenance operations

For a service, always perform the following standard inspection and maintenance operations.

Danger of electric shock Ensure that the boiler is disconnected from the power supply.

Caution

Check whether all gaskets have been positioned properly (absolutely flat in the appropriate groove means they are gas, air and water tight). During the inspection and maintenance operations, water (drops, splashes) must never come into contact with the electrical parts.

10.2.1 Checking the water pressure

1. Check the water pressure.

Important The water pressure is shown on the display of the control panel.

The water pressure must be at least 0.8 bar

2. Refill the central heating system if the water pressure is lower than 0.8 bar.

Important The recommended water pressure is between 1.5 bar and 2 bar.

For more information, see Refilling the system, page 111

10.2.2 Checking the expansion vessel

1. Check the expansion vessel and replace it if necessary.

10.2.3 Checking the ionisation current

1. Check the ionisation current at full load and at low load.

The value is stable after 1 minute.

2. Clean or replace the ionisation and ignition electrode if the value is lower than 3 µA.

DeDietrich AMC 15, AMC 25/28 MI, AMC 25, AMC 35 Installation And Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Contents

1.1 General safety instructions

1 Safety

Recommendations

Liabilities

1.3.1 Manufacturer's liability

1.3.2 Installer's liability

1.3.3 User's liability

2 About this manual

2.1 General

Additional documentation

Symbols used

2.3.1 Symbols used in the manual

3 Technical specifications

3.1 Homologations

3.1.1 Certifications

3.1.2 Unit categories

3.1.3 Directives

3.1.4 Factory test

Technical data

3.3 Dimensions and connections

3.4 Electrical diagram

4 Description of the product

General description

4.2 Operating principle

Automatic refill device

Circulation pump

4.2.3 Water flow

4.2.4 Skeleton diagram

Main components

Control panel

Standard delivery

5 Before installation

5.1 Installation regulations

Choice of the location

5.2.1 Data plate

5.2.2 Location of the boiler

5.2.3 Ventilation

6 Installation

6.1 General

Preparation

6.2.1 Installing the mounting frame

6.2.2 Positioning the boiler

6.3 Hydraulic connections

6.3.1 Rinsing the system

Water flow

Connection of the heating circuit

6.3.4 Connection of the water circuit for domestic use

6.3.5 Connecting the secondary heating circuit

Disconnecting the secondary heating circuit

6.3.7 Connecting the expansion vessel

6.3.8 Connecting the condensate drain pipe

6.4 Gas connection

6.5 Air supply/flue gas outlet connections

6.5.1 Classification

6.5.3 Material

6.5.4 Dimensions of flue gas outlet pipe

6.5.5 Length of the air and flue gas pipes

Reduction table

6.5.6 Additional guidelines

Installation

Condensation

6.5.7 Connecting the flue gas outlet and air supply

Electrical connections

6.6.1 Recommendations

6.6.2 Control unit

6.6.3 Connecting a PC/laptop and diagnostic tools

6.6.4 Access to the connectors

6.6.5 Connection options for the standard PCB

Connecting the modulating thermostat

Connecting the on/off thermostat

Frost protection combined with on/off thermostat

Frost protection combined with outside sensor

Connecting an outside sensor

Connecting the calorifier sensor/ thermostat

Blocking input