Baxi POWER HT+ 1.130, POWER HT+ 1.150, POWER HT+ 1.200, POWER HT+ 1.250 Installation, User And Service Manual

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Installation, User and Service Manual

POWER HT+ 1.130 POWER HT+ 1.150 POWER HT+ 1.200 POWER HT+ 1.250

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Dear Customer,

Thank you very much for buying this appliance.

Please read through the manual carefully before using the product, and keep it in a safe place for later reference. In order to ensure continued safe and efficient operation we recommend that the product is serviced regularly. Our service and customer service organisation can assist with this.

We hope you enjoy years of problem-free operation with the product.

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Contents

1 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.1 General safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.2 Recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

1.3 Liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1.3.1 Manufacturer's liability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1.3.2 Installer's liability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1.3.3 User's liability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

2 Symbols used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.1 Symbols used in the manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

2.2 Symbols used on the appliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3 Technical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

3.1 Homologations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

3.1.1 Directives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

3.1.2 Ecodesign Directive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

3.1.3 EC Declaration of Conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

3.1.4 Gas category . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

3.1.5 Certifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

3.2 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

3.2.1 Other technical parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3.2.2 Sensor specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

3.3 Dimensions and connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3.3.1 POWER HT+ 1.130 and POWER HT+ 1.150 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3.3.2 POWER HT+ 1.200 and POWER HT+ 1.250 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

3.4 Electrical diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

3.4.1 POWER HT+ 1.130 and POWER HT+ 1.150 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

3.4.2 POWER HT+ 1.200 and POWER HT+ 1.250 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

4 Description of the product . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

4.1 General description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

4.2 Operating principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

4.2.1 Circulating pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

4.2.2 Gas/air setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

4.2.3 Low-loss header (accessory) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

4.2.4 Plate heat exchanger (accessories) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

4.2.5 System in cascade . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

4.2.6 Settings and safety devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

4.3 Main components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

4.3.1 POWER HT+ 1.130 and POWER HT+ 1.150 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

4.3.2 POWER HT+ 1.200 and POWER HT+ 1.250 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

4.3.3 Main burner components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

4.4 Control panel description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

4.4.1 Description of the keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

4.4.2 Description of the symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

4.5 Standard delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

4.6 Accessories & options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27

5 Before installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

5.1 Installation regulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

5.2 Installation requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28

5.2.1 Water treatment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28

5.2.2 Gas supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28

5.2.3 Electrical power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

5.2.4 Circulating pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

5.3 Choice of the location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

5.3.1 Ventilation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

5.3.2 Overall space needed for the boiler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31

5.3.3 Data plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

5.3.4 Selecting the position for the outside temperature sensor (optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33

5.4 Transport and unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

5.4.1 POWER HT+ 1.130 and POWER HT+ 1.150 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

5.4.2 POWER HT+ 1.200 and POWER HT+ 1.250 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

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7702630 - v02 - 11082018 POWER HT + 3

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6 Connecting diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

7 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

7.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

7.2 Accessing the internal boiler components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

7.3 Hydraulic connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50

7.3.1 Connecting the heating circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

7.3.2 Connecting the expansion vessel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

7.3.3 Connecting the condensate discharge pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53

7.4 Gas connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

7.4.1 POWER HT+ 1.130 and POWER HT+ 1.150 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

7.4.2 POWER HT+ 1.200 and POWER HT+ 1.250 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

7.5 Air supply/flue gas outlet connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54

7.5.1 Classification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

7.5.2 Coaxial pipes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

7.5.3 Flue gas system accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56

7.5.4 Pipes in cascade (not provided) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

7.5.5 Lengths of the air/flue gas pipes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

7.6 Electrical connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

7.6.1 Recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60

7.6.2 Recommended cable cross section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60

7.6.3 Wiring the terminal blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

7.6.4 Description of the power supply terminal block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

7.6.5 Description of the sensor terminal block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

7.6.6 Connecting boilers in cascade with a OCI 345 module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

7.7 Filling the installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63

7.7.1 POWER HT+ 1.130 and POWER HT+ 1.150 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

7.7.2 POWER HT+ 1.200 and POWER HT+ 1.250 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

7.7.3 Flushing new installations and installations less than 6 months old . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

7.7.4 Flushing an existing installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64

7.7.5 Filling the siphon . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

7.8 Completing installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

8 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

8.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

8.2 Check-list before commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

8.3 Commissioning procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

8.3.1 Checking the gas inlet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

8.3.2 Checking the electrical connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

8.3.3 Checking the hydraulic circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

8.3.4 Initial commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

8.4 Gas settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

8.4.1 Configuring the fan speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

8.4.2 Setting the air/gas ratio (maximum heat input) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

8.4.3 Setting the air/gas ratio (reduced heat input) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71

8.4.4 Gas valve basic settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

8.4.5 Conversion to propane (G31) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

9 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74

9.1 Use of the control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

9.1.1 Modifying the user parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

9.1.2 Modifying the installer parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74

9.2 Starting up the boiler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74

9.3 Stopping the boiler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

9.3.1 Putting the boiler in Standby mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

9.4 Frost Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75

9.4.1 Activating the Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

9.5 Special functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .76

10 Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

10.1 List of parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

10.1.1 Shortcuts menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

10.1.2 Information menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77

10.1.3 List of user parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

10.1.4 List of installer parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .80

Contents

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10.2 Setting the parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

10.2.1 Setting the date and time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .91

10.2.2 Selecting the language . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

10.2.3 Changing the operating mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

10.2.4 Forcing domestic hot water production . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

10.2.5 Setting the room temperature set point (On mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

10.2.6 Modifying the domestic hot water production mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

10.2.7 Setting the domestic hot water temperature set point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

10.2.8 Setting the room temperature set point (Reduced mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

10.2.9 Programming a Holiday period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

10.2.10 Using the fixed-speed boiler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

10.2.11 Selecting a heating circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

10.2.12 Locking/Unlocking parameter modification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

10.2.13 Timer program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

10.2.14 Setting a temporary heating flow temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .104

10.2.15 Managing boilers in cascade . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

10.3 Accessing the information menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .104

11 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

11.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

11.2 Standard inspection and maintenance operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

11.2.1 Performing the annual service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

11.2.2 Removing the burner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

11.2.3 Cleaning the heat exchanger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .112

11.2.4 Checking the burner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114

11.2.5 Cleaning the siphon . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115

11.2.6 Refitting the burner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116

11.2.7 Thermal fuse in the heat exchanger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117

11.2.8 Check the combustion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117

11.2.9 Cleaning the plate heat exchanger (optional kit) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118

11.2.10 Cleaning the low-loss header (optional kit) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120

11.3 Replacing the 6.3 A fuses on the electrical terminal blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125

12 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .127

12.1 Error codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127

12.1.1 List of error codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127

12.2 Accessing the error memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129

12.3 Automatic error code clearing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130

12.4 Clearing error codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .130

13 Decommissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131

13.1 Decommissioning procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .131

13.2 Recommissioning procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .131

14 Environmental . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132

14.1 Energy savings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132

14.2 Room thermostat and settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132

15 Disposal and recycling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133

16 Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134

16.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134

16.2 Terms of warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134

Contents

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1 Safety

1.1 General safety instructions

For the installer and end user:

Danger This appliance can be used by children aged from 8 years and above and persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the appliance in a safe way and understand the hazards involved. Children shall not play with the appliance. Cleaning and user maintenance shall not be made by children without supervision.

Caution Do not touch the flue gas pipes. Depending on the boiler settings, the temperature of the flue gas pipes can rise to over 60°C.

Caution Do not touch radiators for long periods. Depending on the boiler settings, the temperature of the radiators may exceed 60°C.

Caution Take precautions with the domestic hot water. Depending on the boiler settings, the domestic hot water temperature may exceed 65°C.

Danger of electric shock Before any work, switch off the mains supply to the boiler.

For the installer:

1 Safety

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Danger If you smell gas:

1. Do not use a naked flame, do not smoke, do not operate electrical contacts or switches (doorbell, light, motor, lift, etc.).

2. Shut off the gas supply.

3. Open the windows.

4. Locate the probable leak and seal it immediately.

5. If the leak is before the gas meter, contact the gas supplier.

Danger If you smell flue gases:

1. Switch off the appliance.

2. Open the windows.

3. Locate the probable source of the flue gas leak and fix it immediately.

Warning The condensation drain must not be changed or sealed. If a condensate neutralisation system is used, the system must be cleaned regularly in accordance with the instructions provided by the manufacturer.

For the end user:

Danger If you smell gas:

1. Do not use a naked flame, do not smoke, do not operate electrical contacts or switches (doorbell, light, motor, lift, etc.).

2. Shut off the gas supply.

3. Open the windows.

4. Evacuate the property.

5. Contact a qualified professional.

Danger If you smell flue gases:

1. Switch off the appliance.

2. Open the windows.

3. Evacuate the property.

4. Contact a qualified professional.

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1.2 Recommendations

Important Keep this document close to the place where the appliance is installed.

Important

Never remove or cover labels and data plates affixed to the boiler. Labels and data plates must be legible throughout the entire lifetime of the boiler. Immediately replace damaged or illegible instructions and warning labels.

Caution To enjoy warranty cover, no modifications must be made to the boiler.

Caution The appliance should be switched to Summer or Frost Protection mode rather than be switched off in order to guarantee the following functions:

Avoidance of pumps blocking Frost Protection

Caution The frost protection function only protects the boiler, not the heating system.

Caution The frost protection function does not work if the boiler is powered off.

Caution Remove the boiler casing only to perform maintenance and repair work. Always put the casing back in place after such work.

Important Only qualified professionals are permitted to install the boiler, in accordance with prevailing local and national regulations.

Important Respect the minimum and maximum water inlet pressure to ensure correct operation of the boiler: refer to the chapter Technical Specifications.

1 Safety

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Caution

The boiler must always be connected to the protective earthing. Earthing must comply with the prevailing installation standards. Earth the appliance before making any electrical connections.

For the type and calibre of the protective equipment, refer to the chapter Electrical Connections in the Installation and Service Manual.

Caution If a power cord comes with the appliance and it turns out to be damaged, it must be replaced by the manufacturer, its after sales service or persons with similar qualifications in order to obviate any danger.

Danger For safety reasons, we recommend fitting smoke and CO2 detectors and alarms at suitable places

in your home.

1.3 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.

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:

1 Safety

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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.

1 Safety

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2 Symbols used

2.1 Symbols used in the manual

This manual uses various danger levels to draw attention to special instructions. We do this to improve user safety, to prevent problems and to guarantee correct operation of the appliance.

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

Danger of electric shock Risk of electric shock.

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.

2.2 Symbols used on the appliance

1 Alternating current. 2 Protective earthing. 3 Before installing and commissioning the appliance, carefully read

the instruction manuals provided.

4 Dispose of used products through an appropriate recovery and

recycling structure.

5 Caution: danger of electric shock, live parts. Disconnect the mains

power prior to carrying out any work.

Fig.1

1 2

MW-2000068-1

2 Symbols used

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3 Technical specifications

3.1 Homologations

3.1.1 Directives

This product has been manufactured and put into circulation in accordance with the requirements and standards of the following European Directives:

Gas Appliances Regulation (EU) (2016/426)

Pressure Equipment Directive 2014/68/EU

Electromagnetic Compatibility Directive (2014/30/EU).

Low Voltage Directive (2014/35/EU).

Efficiency Directive (92/42/EEC)

European Ecodesign Directive (2009/125/EC) EU Regulation (813/2013)

Energy Labelling Framework Regulation (EU) (2017/1369) EU Regulation (811/2013)

Apart from the legal provisions and Directives, the additional Directives described in these instructions must also be observed.

For all provisions and Directives referred to in these instructions, it is agreed that all addenda or subsequent provisions will apply at the time of installation.

3.1.2 Ecodesign Directive

This product conforms to the requirements of European Directive 2009/125/EC on the ecodesign of energy-related products.

3.1.3 EC Declaration of Conformity

The unit complies with the standard type described in the EC declaration of conformity. It has been manufactured and commissioned in accordance with European directives.

The original declaration of conformity is available from the manufacturer.

3.1.4 Gas category

Country Gas category Gas type Supply pressure (mbar)

Austria II

2H3P

G20 (natural gas H) G31 (propane)

20 30-50

Hungary I

2HS

G20 (natural gas H) G25.1 (natural gas L)

20 25

Italy II

2H3P

G20 (natural gas H) G31 (propane)

20 37

Czech Republic II

2H3P

G20 (natural gas H) G31 (propane)

20 37-50

The boiler is pre-set in the factory to run on natural gas H (G20).

For operation with another type of gas, see the chapter "Conversion to another gas".

3.1.5 Certifications

We hereby certify that the series of appliances specified below complies with the standard model described in the CE declaration of conformity.

3 Technical specifications

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CE number 0085CP0089

NOx class Class 6

Gas and pressures Natural gas (G20) - 20 mbar

Natural gas (G25) - 25 mbar Natural gas (G25.1) - 25 mbar Natural gas (G27) - 20 mbar Propane (G31) - 37/50 mbar

Tab.1 Type of flue gas connection

Boiler model Type of flue gas connection

POWER HT+ 1.130 POWER HT+ 1.150

B23 – B

23(P)

13(X)

33(X)

43(X)

53(X)

63(X)

83(X)

POWER HT+ 1.200 POWER HT+ 1.250

B23 – B

23(P)

3.2

Technical data

Tab.2 General

Boiler speed Unit

POWER HT + 1.130

POWER HT + 1.150

POWER HT + 1.200

POWER HT + 1.250

Useful heat output at 80/60°C Heating mode

Minimum kW 24.3 28.1 31.0 38.8

Useful heat output at 80/60°C Heating mode

Maximum kW 121.5 140.3 185.9 232.8

Useful heat output at 50/30 °C Heating mode

Minimum kW 26.2 30.2 33.1 41.7

Useful heat output at 50/30 °C Heating mode

Maximum kW 130.6 150.9 200 250

Heat output Heating mode

Minimum kW (LHV) 24.8 28.6 31.8 40

Heat output Heating mode

Maximum kW (LHV) 123.8 143 191 240

Heat output Heating mode

Minimum kW (HHV) 27.5 31.7 35.3 44.4

Heat output Heating mode

Maximum kW (HHV) 137.4 158.7 212 266.6

Efficiency at 80/60 °C Heating mode under full load

Maximum % 98.1 98.1 97.32 97.02

Efficiency at 50/30 °C

Heating mode un der full load

% 105.5 105.5 104.2 104.2

Efficiency Return temperature 30 °C

Heating mode un der part load

% 108.5 108.5 109.1 109.1

3 Technical specifications

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Tab.3 Characteristics of the heating circuit

Unit

POWER HT+

1.130

POWER HT+

1.150

POWER HT+

1.200

POWER HT+

1.250

Water content (excluding expansion vessel) litre 10 11 13 15

Minimum operating pressure MPa (bar) 0.05 (0.5) 0.05 (0.5) 0.05 (0.5) 0.05 (0.5)

Maximum operating pressure (PMS) MPa (bar) 0.6 (6) 0.6 (6) 0.6 (6) 0.6 (6)

Maximum water temperature °C 85 85 85 85

Maximum operating temperature °C 80 80 90 90

Tab.4 Data on the gases and combustion gases

For gas flow rates at 15°C and

1013.25 hPA

Boiler speed Unit POWER HT

+ 1.130

POWER HT + 1.150

POWER HT + 1.200

POWER HT + 1.250

Minimum gas pressure (G20) mbar 17 17 17 17

Nominal pressure (G20) mbar 20 20 20 20

Maximum pressure (G20) mbar 25 25 25 25

Minimum gas pressure (G25) mbar 20 20 20 20

Nominal pressure (G25) mbar 25 25 25 25

Maximum pressure (G25) mbar 30 30 30 30

Minimum gas pressure (G25.1) mbar 18 18 18 18

Nominal pressure (G25.1) mbar 25 25 25 25

Maximum pressure (G25.1) mbar 33 33 33 33

Minimum gas pressure (G27) mbar 16 16 16 16

Nominal pressure (G27) mbar 20 20 20 20

Maximum pressure (G27) mbar 23 23 23 23

Minimum gas pressure (G31) mbar 25 25 25 25

Nominal pressure (G31) mbar 37 37 37 37

Maximum pressure (G31) mbar 57.5 57.5 57.5 57.5

Consumption of natural gas (G20) Minimum m³/h 2.6 3.0 3.4 4.2

Consumption of natural gas (G20) Maximum m³/h 13.1 15.1 20.2 25.4

Consumption of natural gas (G25) Minimum m³/h 3.1 3.5 3.9 4.9

Consumption of natural gas (G25) Maximum m³/h 15.2 17.6 23.5 29.5

Consumption of natural gas (G25.1) Minimum m³/h 3.0 3.5 3.9 4.9

Consumption of natural gas (G25.1) Maximum m³/h 15.2 17.6 23.5 29.5

Consumption of natural gas (G27) Minimum m³/h 3.2 3.7 4.1 5.2

Consumption of natural gas (G27) Maximum m³/h 16.0 18.5 24.7 31.0

Consumption of Propane (G31) Minimum kg/h 1.0 1.2 2.5 3.1

Consumption of Propane (G31) Maximum kg/h 5.1 5.9 14.8 18.6

NOx according to EN 15502–1 Class 5 mg/kWh 17 23 37 39

Flue gas mass flow rate (G20) Minimum kg/h 43.2 50.4 54 69

Flue gas mass flow rate (G20) Maximum kg/h 201.6 230.4 322 411

Maximum flue gas temperature Minimum °C 70 70 80 80

Tab.5 Electrical specifications

Unit POWER HT+

1.130

POWER HT+

1.150

POWER HT+

1.200

POWER HT+

1.250

Power supply voltage VAC 230 230 230 230

Maximum absorbed power - Full load W 187 283 242 369

Maximum absorbed power - Part load W 51 52 47 48

Maximum absorbed power - Stand-by W 3 3 3 3

3 Technical specifications

14 POWER HT + 7702630 - v02 - 11082018

Page 15

Tab.6 Other specifications

Unit POWER HT+

1.130

POWER HT+

1.150

POWER HT+

1.200

POWER HT+

1.250

Ingress protection rating IPX1B IPX1B IPX1B IPX1B

Weight empty kg 126 132 212 232

3.2.1 Other technical parameters

Tab.7 Technical parameters for boiler space heaters

Product name POWER HT

+ 1.130

POWER HT + 1.150

POWER HT + 1.200

POWER HT + 1.250

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 No No

Rated heat output

Prated

kW 122 140 186 233

Useful heat output at rated heat output and high temperature regime

(2)

kW 121.5 140.0 186.0 233.0

Useful heat output at 30% of rated heat output and low temperature regime

(1)

kW 40.4 46.5 36.0 46.0

Seasonal space heating energy efficiency

% - - - -

Useful efficiency at rated heat output and high temperature regime

(2)

% 88.4 88.4 87.7 87.4

Useful efficiency at 30% of rated heat output and low temperature regime

(1)

% 97.8 97.8 98.3 98.3

Auxiliary electricity consumption

Full load

elmax

kW 0.187 0.283 0.230 0.369

Part load

elmin

kW 0.051 0.052 0.047 0.048

Stand-by

kW 0.004 0.004 0.004 0.004

Other specifications

Standby heat loss

stby

kW 0.078 0.083 0.095 0.117

Ignition burner power consumption

ign

kW - - - -

Annual energy consumption

GJ - - - -

Sound power level, indoors

dB 63 63 - -

Emissions of nitrogen oxides NO

mg/kWh 17 23 37 39

(1) Low temperature means for condensing boilers 30°C, for low temperature boilers 37°C and for other heaters 50°C return temperature

(at heater inlet).

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

See The back cover for contact details.

3.2.2

Sensor specifications

Tab.8 Heating flow sensor and return sensor

Temperature (in °C) 30 65 85

Resistance (in ohms) 8059 2084 1070

3 Technical specifications

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Page 16

Tab.9 Flue gas sensor

Temperature (in °C) -50 -10 0 40 100 200 250 300

Resistance (in ohms) 1 755765 117521 67650 10569 1377 145 65 34

Tab.10 Outside sensor

Temperature (in °C) -30 -15 -5 0 10 20 30 50

Resistance (in ohms) 13034 5861 3600 2857 1840 1218 827 407

3.3

Dimensions and connections

3.3.1 POWER HT+ 1.130 and POWER HT+ 1.150

Fig.2

MW-5000716-3

681

107

172.5

260.5

517.5

167.5

486

300

78.5

305.5

991128

600

440

1227

98.5

38.5

98.5

31.5

1 Flue gas outlet (110/160 mm) 2 Heating circuit flow (G1"1/2) 3 Gas inlet (G1")

4 Heating circuit return (G1"1/2) 5 Condensate discharge (diameter 32 mm) 6 Drain (1/2”)

3 Technical specifications

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Page 17

3.3.2 POWER HT+ 1.200 and POWER HT+ 1.250

Fig.3

MW-5000717-3

104

300

1410

127

432

1104

215.5

292.5

305.5

937.5

38.5

98.5

721166

600

414

300

1238

1 Combustion air inlet (150 mm) 2 Flue gas outlet (150 mm) 3 Heating circuit flow (R2” or DN50 PN6 flange) 4 Gas inlet (G1"1/2)

5 Condensate discharge (diameter 32 mm) 6 Heating circuit return (R2” or DN50 PN6 flange) 7 Drain (1/2”)

3.4 Electrical diagram

3.4.1 POWER HT+ 1.130 and POWER HT+ 1.150

Fig.4

MW-5000718-2

BL BR

G/Y

HMI

G/Y

BR BL

G/Y

1 2

BR13BR

T1 T2 S1

MW-5000718-3

Earth POP rivet

A Power supply 230 V 50 Hz

B Power supply auxiliary circuit 1

C Power supply auxiliary circuit 2

3 Technical specifications

7702630 - v02 - 11082018 POWER HT + 17

Page 18

D Room thermostat E Heating circuit pump

F Domestic hot water pump G Safety contact H Boiler pump

I Auxiliary sensor 1

J Auxiliary sensor 2

K Outside sensor

L Domestic hot water sensor

M Room temperature sensor 1

N Room temperature sensor 2

O Room temperature sensor 3

P Boiler pump modulation (PWM)

1 Flow temperature sensor

2 Return temperature sensor 3 Hydraulic pressure sensor 4 Flue gas sensor 5 Control panel display 6 Ionisation probe 7 Spark plug 8 Igniter

9 Gas valve 10 Safety thermostat 11 Fan 12 Thermal fuse 13 Safety thermostat on the combustion chamber door 14 Flue gas pressure switch

3.4.2 POWER HT+ 1.200 and POWER HT+ 1.250

Fig.5

MW-4000294-1

Earth POP rivet

A Power supply 230 V 50 Hz B Power supply auxiliary circuit 1 C Power supply auxiliary circuit 2 D Room thermostat E Heating circuit pump

F Domestic hot water pump

G Safety contact

H Boiler pump

I Auxiliary sensor 1

J Auxiliary sensor 2

K Outside sensor

L Domestic hot water sensor

M Room temperature sensor 1

N Room temperature sensor 2

O Room temperature sensor 3

P Boiler pump modulation (PWM)

1 Flow temperature sensor

2 Return temperature sensor

3 Hydraulic pressure sensor

4 Flue gas sensor

5 Control panel display

6 Ionisation probe

7 Spark plug

8 Igniter

9 Gas valve 10 Safety thermostat 11 Fan 12 Safety thermostat on the combustion chamber door 13 Safety thermostat on the combustion chamber door 14 Flue gas pressure switch

3 Technical specifications

18 POWER HT + 7702630 - v02 - 11082018

Page 19

4 Description of the product

4.1 General description

POWER HT + floor-standing condensing gas boilers have the following characteristics:

Low pollutant emissions High efficiency heating Electronic control panel Flue gas discharge by a forced flue, chimney or bi-flow type connection. Perfectly suitable for cascade systems with several boilers.

4.2

Operating principle

4.2.1

Circulating pump

Important The benchmark for the most efficient circulating pumps is EEI ≤

0.20.

4.2.2 Gas/air setting

Boiler model Operating principle

POWER HT+ 1.130 POWER HT+ 1.150

The casing fitted to the boiler is also used as an air box. Air is drawn in by the fan and gas injected into the Venturi by the fan intake. The fan speed is modulated according to the settings, the heat demand and the actual temperatures measured by the temperature sensors. The gas and air are mixed in the Venturi. The gas/air ratio command function ac curately adjusts the quantities of gas and air required. This provides optimum combustion over the entire output range. The gas/air mixture is sent to the burner, located upstream of the heat exchanger.

POWER HT+ 1.200 POWER HT+ 1.250

An air intake hose conveys the air directly to the air intake nozzle on the venturi inlet. The fan speed is modulated according to the settings, the heat demand and the actual temperatures measured by the temperature sensors. The gas and air are mixed in the Venturi. The gas/air ratio command function ac curately adjusts the quantities of gas and air required. This provides optimum combustion over the entire output range. The gas/air mixture is sent to the burner, located upstream of the heat exchanger.

4 Description of the product

7702630 - v02 - 11082018 POWER HT + 19

Page 20

4.2.3 Low-loss header (accessory)

1 Low-loss header kit

Low-loss headers are available for all boiler outputs.

The low-loss header is a component which enables the primary circuit and secondary circuit to have a hydraulic system independent from the boiler installation.

It offers the following advantages:

It creates a hydraulically neutral point. It ensures the primary flow rate is controlled. It allows good control of the secondary flow rate and pressures, particularly when several circuits are operating independently from one another. It provides the option of having secondary circuits at different temperatures. It allows air to be evacuated thanks to its degassing function It enables decanting and removal of sludge via the sludge removal function.

Fig.7 Functional diagram of a boiler with a low-loss header

MW-1000021-06

1 Boiler 2 Low-loss header kit 3 Low-loss header 4 Air vent 5 Drain valve

6 Heating circuit flow

7 Heating circuit return

8 Safety valve

9 Modulating circulating pump 10 Non-return valve

Fig.6

MW-4000255-2

4 Description of the product

20 POWER HT + 7702630 - v02 - 11082018

Page 21

4.2.4 Plate heat exchanger (accessories)

The main advantage of the plate heat exchanger is that it hydraulically isolates the primary and secondary circuits. It also enables the boiler body to be protected from any contamination found in the secondary heating circuit water.

Fig.9 Functional diagram of a boiler with plate heat exchanger

MW-5000803-01

Boiler

Plate heat exchanger kit

Plate heat exchanger

Air vent

Drain valve

Heating circuit flow

Valve

Safety valve

Modulating circulating pump

Non-return valve

Drain valve

Valve

Expansion vessel

Fig.8

MW-5000804-02

4 Description of the product

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Page 22

4.2.5 System in cascade

Fig.10

MW-5000719-3

The boiler is ideally suited for a cascade system configuration.

Use a boiler/cascade connection kit to connect boilers in cascade.

4.2.6

Settings and safety devices

Important The settings and safety devices are only operational if the boiler is powered up.

Tab.11 Description of the safety devices

Device Description

Safety thermostats The safety thermostats suspend the supply of gas to the burner if the water in the pri

mary circuit overheats. To resume normal operation of the boiler, eliminate the cause of this interruption.

Caution The safety thermostats must in no circumstances be switched off or disconnected.

NTC flue gas sensor The control panel blocks the gas supply to the burner in the event of overheating. To

resume normal operation of the boiler, switch off the boiler and switch it back on again with the ON/OFF switch.

Flame detector by ionisation The boiler is put into safety lock-down in the event of gas shortage or incomplete cross-

lighting on the burner.

Hydraulic pressure switch Thanks to this device, the burner can only operate if the installation pressure is higher

than 0.1 bar (0.10 MPa). When the pressure switch detects a pressure lower than 0.8 bar (0.08 MPa), a warning message is displayed, without stopping the circulating pump.

Post-circulating pump After the burner stops, depending on the room thermostat setting and if in heating

mode, the circulating pump runs for a further 3 minutes.

4 Description of the product

22 POWER HT + 7702630 - v02 - 11082018

Page 23

Device Description

Frost protection device When the flow temperature is lower than 5 °C, the burner starts up and runs until the

flow temperature reaches 15 °C. This device runs under the following conditions:

The boiler is switched on The gas supply is working The pressure in the system is higher than 0.5 bar (0.05 MPa)

Anti-blocking of the pump If there are no heating or domestic hot water requirements for 24 consecutive hours, the

pumps start up automatically and run for 10 seconds. The pumps connected directly to the appliance's terminal blocks are started up every Friday at 10:00 a.m. and run for 30 seconds.

Anticipatory start-up of the circulat ing pumps

In heating mode only, the appliance can start up the circulating pumps before burner ig nition. The duration and activation of anticipatory start-up depends on the installation re quirements and the operating temperatures. The duration of anticipatory start-up of the circulating pumps therefore varies from a few seconds to several minutes.

Flue gas pressure switch The flue gas pressure switch interrupts the intake of gas to the burner in the event of a

blockage in the discharge pipe for the combustion products or the combustion air inlet pipe.

4.3

Main components

4.3.1 POWER HT+ 1.130 and POWER HT+ 1.150

Fig.11

MW-5000720-2

20 21

18 17

13 12

23 24

1 Control panel 2 Flue gas connection 3 Flue gas measuring point 4 Controller PCB 5 Mounting point for a maximum of two AVS 75

modules. A third AVS 75 module can be used by the boiler but must be fixed to the wall and powered

externally. 6 Power supply terminal block 7 Terminal block for the sensors and the remote

control 8 Mounting point for communication module OCI 345

Caution Danger of short circuit on the OCI 345 communication module if it is fixed in another emplacement.

9 Mounting point for conversion module AGU 2.551

10 Gas valve 11 Ionisation probe 12 Burner 13 Ignition electrode 14 Flame inspection window 15 Safety thermostat on the combustion chamber door 16 Ignition transformer 17 Hydraulic pressure sensor 18 Return temperature sensor 19 Flue gas sensor 20 Flue gas fitting 21 Flue gas pressure switch 22 Automatic air vent 23 Safety thermostat 24 Flow temperature sensor 25 Drain valve 26 Condensate siphon

4 Description of the product

7702630 - v02 - 11082018 POWER HT + 23

Page 24

4.3.2 POWER HT+ 1.200 and POWER HT+ 1.250

Fig.12

MW-5000721-3

20 21

1 Control panel 2 Flue gas connection 3 Flue gas measuring point 4 Controller PCB 5 Mounting point for a maximum of two AVS 75

modules. A third AVS 75 module can be used by the

boiler but must be fixed to the wall and powered

externally. 6 Power supply terminal block 7 Terminal block for the sensors and the remote

control 8 Mounting point for communication module OCI 345

Caution Danger of short circuit on the OCI 345 communication module if it is fixed in another emplacement.

9 Mounting point for conversion module AGU 2.551

10 Gas valve 11 Ionisation probe 12 Burner 13 Ignition electrode 14 Flame inspection window 15 Safety thermostat on the combustion chamber door 16 Ignition transformer 17 Hydraulic pressure sensor 18 Flue gas pressure switch 19 Automatic air vent 20 Flue gas sensor 21 Flue gas fitting 22 Return temperature sensor 23 Flow temperature sensor 24 Drain valve 25 Safety thermostat 26 Condensate siphon

4 Description of the product

24 POWER HT + 7702630 - v02 - 11082018

Page 25

4.3.3 Main burner components

1 Burner door 2 Safety thermostat on the combustion chamber door 3 Burner 4 Flame inspection window 5 Ignition electrode 6 Air/gas inlet pipe 7 Gas valve 8 Ionisation probe 9 Fan

10 Venturi

1 Safety thermostat on the combustion chamber door 2 Burner 3 Burner door 4 Flue gas non-return valve 5 Venturi 6 Flame inspection window 7 Ignition electrode 8 Ionisation probe 9 Fan

10 Gas valve

4.4 Control panel description

4.4.1

Description of the keys

Shortcuts menu key

Quick access to the operating modes

Menu key Selection and confirmation button

Rotary button for navigating between menu or parameter screens Push button to select a menu/parameter or to confirm a value/ action

Fig.13 Burner for POWER HT+ 1.130 and

POWER HT+ 1.150

MW-4000265-1

321

8 9

Fig.14 Burner for POWER HT+ 1.200 and

POWER HT+ 1.250

MW-5000722-2

6 7 8

Fig.15

MW-3000005

87654321 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

4 Description of the product

7702630 - v02 - 11082018 POWER HT + 25

Page 26

4.4.2 Description of the symbols

1 Date: day, month, year 2 Day of the week 3 Boiler / heating circuit pressure 4 Clock: hours and minutes 5 Operating period indicators in Comfort/Eco mode over 24 hours:

Top line: Heating mode Bottom line: Domestic hot water mode

Type of information Symbol Description

Information Room temperature (°C)

Outdoor temperature (°C)

°C, °F,

bar, PSI

Temperature and hydraulic pressure units: international system or imperial system.

Data transmission: only when the wireless remote control is connected.

Solar integration available

Operating modes Comfort operating mode: comfort room temperature

Eco operating mode: reduced room temperature

1 2 3

Operating mode: Heating

1 2 3

(1): Zone 1 active

1 2 3

(2): Zone 2 active

1 2 3

(3): Zone 3 active

Symbol displayed:

No symbol: heating circuit not connected Fixed symbol: heating circuit connected Flashing symbol: heating requested

Operating mode: Domestic hot water activated

Important

The heating

1 2 3

is off during production of domestic hot water .

Operating mode: Comfort / Eco override mode

Operating mode: Automatic, according to the timer programs

Sweep Function activated

Holidays program function activated

Frost protection mode: the boiler frost protection has been activated

Burner on:

(1): Output < 70%

(2): Output > 70%

error Error: the burner cannot start up

Error: After Sales Service intervention required

Hydraulic pressure too low

Generic error

Fig.16

87654321 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

14:13

1.5 bar

18. February 2014 Tuesday

MW-3000006-GB-05

4 Description of the product

26 POWER HT + 7702630 - v02 - 11082018

Page 27

4.5 Standard delivery

The POWER HT + boiler comes in a package that includes:

A floor-standing gas boiler An installation, user and maintenance manual A data plate.

4.6 Accessories & options

A detailed list of accessories and options can be found in our catalogue.

4 Description of the product

7702630 - v02 - 11082018 POWER HT + 27

Page 28

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

Installation requirements

5.2.1 Water treatment

In many cases, the boiler and the heating system can be filled with mains water, without treating the water.

Caution Do not add any chemical products to the central heating water without first consulting a water treatment specialist. For example: antifreeze, water softeners, products to increase or reduce the pH value, chemical additives and/or inhibitors. These may cause faults in the boiler and damage the heat exchanger.

Important

Flush the installation with at least 3 times the volume of water contained in the central heating system. Flush the DHW circuit with at least 20 times its volume of water.

The water in the installation must comply with following characteristics:

Tab.12 Heating water specifications

Specification Unit

Total output of the installation (kW)

≤ 70 70 - 200 200 - 550 > 550

Degree of acidity (untreated water)

pH 7.5 - 9.5 7.5 - 9.5 7.5 - 9.5 7.5 - 9.5

Degree of acidity (treated water)

pH 7.5 - 9.5 7.5 - 9.5 7.5 - 9.5 7.5 - 9.5

Conductivity at 25°C

μS/cm ≤ 800 ≤ 800 ≤ 800 ≤ 800

Chlorides mg/litre ≤ 50 ≤ 50 ≤ 50 ≤ 50

Other components mg/litre < 1 < 1 < 1 < 1

Total water hard ness

(1)

°f 1 - 35 1 - 20 1 - 15 1 - 5

°dH 0.5 - 20.0 0.5 - 11.2 0.5 - 8.4 0.5 - 2.8

mmol/litre 0.1 - 3.5 0.1 - 2.0 0.1 - 1.5 0.1 - 0.5

(1) For installations with constant heating and a maximum total system output of 200 kW, the appropriate maximum total water hardness is

8.4°dH (1.5 mmol/l, 15°f). For installations of more than 200 kW, the appropriate maximum total hardness is 2.8°dH (0.5 mmol/l, 5°f).

Important If water treatment is necessary, Baxi recommends the following manufacturers:

Sotin Fernox Sentinel

5.2.2 Gas supply

Before mounting, check that the gas meter has sufficient capacity (in m3/h). To do this, you should bear in mind the consumption of all

appliances. If the capacity of the gas meter is too low, inform the gas supply company.

5 Before installation

28 POWER HT + 7702630 - v02 - 11082018

Page 29

The boilers are preset to run on G20 gas (gas H) and can be adapted to run with the following gases:

G25 (gas L), G25.1 (gas S), G27 (gas Lw), G31 (gas P),

Important To use a different type of gas, contact an approved assistance service.

5.2.3 Electrical power supply

Power supply voltage 230 V AC/50 Hz

Caution Please ensure the polarities shown on the terminals are followed, i.e live (L), neutral (N) and earth ( )

5.2.4 Circulating pump

The boiler's water flow rates must be higher than or equal to the specifications in the table below:

Tab.13 Water flow rates in the boiler

Boiler model Working flow rate with the low-loss header kit: minimum flow rate (litres/

hour)

POWER HT+ 1.130 2250

POWER HT+ 1.150 3000

POWER HT+ 1.200 3500

POWER HT+ 1.250 4500

1 Q flow rate (litres/hour) 2 H pressure in millibar (mbar) 3 Operating water flow rate at nominal heat output = 3730 litres/hour

where ∆T = 30°C

4 Operating water flow rate at nominal heat output = 5600 litres/hour

where ∆T = 20°C

5 Operating water flow rate at nominal heat output = 7500 litres/hour

where ∆T = 15°C

ΔT Temperature difference between the flow water and the return

water in the boiler

Fig.17 Pressure drops for POWER HT+

1.130

100

200

300

400

500

600

700

800

900

1 000

1 100

0 2000 4000 6 000 8000 10000

MW-5000723-1

5 Before installation

7702630 - v02 - 11082018 POWER HT + 29

Page 30

1 Q flow rate (litres/hour) 2 H pressure in millibar (mbar) 3 Operating water flow rate at nominal heat output = 4310 litres/hour

where ∆T = 30 °C

4 Operating water flow rate at nominal heat output = 6460 litres/hour

where ∆T = 20 °C

5 Operating water flow rate at nominal heat output = 8610 litres/hour

where ∆T = 15°C

ΔT Temperature difference between the flow water and the return

water in the boiler

1 Q flow rate (litres/hour) 2 H pressure in millibar (mbar) 3 Operating water flow rate at nominal heat output = 5740 litres/hour

where ∆T = 30°C

4 Operating water flow rate at nominal heat output = 8610 litres/hour

where ∆T = 20°C

5 Operating water flow rate at nominal heat output = 11480 litres/

hour where ∆T = 15°C

ΔT Temperature difference between the flow water and the return

water in the boiler

1 Q flow rate (litres/hour) 2 H pressure in millibar (mbar) 3 Operating water flow rate at nominal heat output = 7180 litres/hour

where ∆T = 30°C

4 Operating water flow rate at nominal heat output = 10770 litres/

hour where ∆T = 20°C

5 Operating water flow rate at nominal heat output = 14350 litres/

hour where ∆T = 15°C

ΔT Temperature difference between the flow water and the return

water in the boiler

5.3

Choice of the location

Before mounting the boiler, decide on the ideal position for mounting, bearing in mind any Directives and the dimensions of the appliance.

Fig.18 Pressure drops for POWER HT+

1.150

MW-5000724-2

200

400

600

800

1000

1200

1400

1600

2000

4000

6000

8000

10000

12000

Fig.19 Pressure drops for POWER HT+

1.200

100

200

300

400

500

600

700

800

900

1000

0 2000 4000 6000 8000 10000 12000 14000

MW-5000725-1

Fig.20 Pressure drops for POWER HT+

1.250

MW-5000726-1

100

200

300

400

500

600

700

800

900

1 000

0 2000 4000 6000 8000 10000 12000 14000 16000 18000

5 Before installation

30 POWER HT + 7702630 - v02 - 11082018

Page 31

Caution Install the thermodynamic water heater in a frost-free environment.

Caution Install the boiler on a solid, stable structure able to bear its weight.

Caution Do not stock chloride or fluoride compounds close to the boiler. They are particularly corrosive and may contaminate the combustion air. Chloride and fluoride compounds are present in aerosol sprays, paints, solvents, cleaning products, washing products, detergents, glues, snow clearing salts.

Caution Do not store, even temporarily, explosive or easily combustible materials in the boiler room or near the boiler.

Caution Use plugs for the intake of air and discharge of combustion gases observing the prevailing regulations and directives.

Caution Connect the condensate discharge to the waste water near the boiler.

Caution France: Abide by the regulatory provisions of the Order of 23 June 1978 and the ATG C 321.4

5.3.1 Ventilation

To allow the intake of combustion air, sufficient ventilation must be provided in the boiler room, for which the cross section and position must satisfy the regulations in force in the country in which the boiler is installed: If the boiler is installed in closed premises, respect the minimum dimensions given in the diagram below. Also allow for openings to obviate the following hazards:

Accumulation of gas Overheating of the premises All countries except Great Britain: Minimum cross section of the

openings: S1 + S2 = 150 cm

Ventilation to be provided for the boilers

5.3.2 Overall space needed for the boiler

To ensure adequate access to the appliance and facilitate maintenance, allow sufficient space around the boiler, according to the information provided.

Fig.21

MW-3000011-04

5 Before installation

7702630 - v02 - 11082018 POWER HT + 31

Page 32

Important Keep the boiler accessible at all times.

Clearance to be provided for the boilers

Tab.14

Boiler model A B C D E

POWER HT+ 1.130 1100 500 400 800 1000

POWER HT+ 1.150 1100 500 400 800 1000

POWER HT+ 1.200 1100 500 750 800 1000

POWER HT+ 1.250 1100 500 750 800 1000

Clearance to be provided for boilers equipped with a low-loss header kit, plate heat exchanger kit, or cascade kit

Tab.15

Boiler model A B C D E

POWER HT+ 1.130 1100 500 400 500 1000

POWER HT+ 1.150 1100 500 400 500 1000

Fig.22

MW-4000216-02

Fig.23

MW-4000217-02

5 Before installation

32 POWER HT + 7702630 - v02 - 11082018

Page 33

Boiler model A B C D E

POWER HT+ 1.200 1100 500 750 500 1000

POWER HT+ 1.250 1100 500 750 500 1000

5.3.3 Data plate

The data plate is located on the back of the boiler. The data plate provides important information regarding the appliance:

Serial number Model Gas category etc.

5.3.4 Selecting the position for the outside temperature sensor (optional)

It is important to select a position that allows the sensor to measure the outside conditions correctly and effectively.

Recommended positions

Place the outside sensor in a position that covers the following characteristics:

On a façade of the area to be heated, on the north if possible. Half way up the wall of the area to be heated. Under the influence of changes in the weather. Protected from direct sunlight. Easy to access.

Fig.25

MW-8800N001-3

2 1

1/2 H (min. 2,5 m)

1/2 Z

Optimum location

Possible position

Inhabited height controlled by the sensor

Inhabited area controlled by the sensor

Positions to be avoided

Avoid placing the outside sensor in a position with the following characteristics:

Masked by part of the building (balcony, roof, etc.). Close to a disruptive heat source (sun, chimney, ventilation grid, etc.).

Fig.24

MW-3000013

5 Before installation

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Page 34

Fig.26

MW-3000014-2

5.4

Transport and unpacking

5.4.1 POWER HT+ 1.130 and POWER HT+ 1.150

Transport

Caution

Have at least two people standing by. Handle the appliance with gloves.

Transport the pallet carrying the appliance using a pallet truck, a forklift truck or a 4-wheel removals cart. Do not use the top cover of the appliance for transport lifting. Transport the appliance vertically.

Unpacking & initial preparation

1. Remove the cardboard packaging and polystyrene packing.

Fig.27

>20°

MW-2000774-1

Fig.28

MW-2000775-2

5 Before installation

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2. Remove the front panel by pulling firmly on the slots provided.

3. Lift and tilt the control panel.

4. Disconnect the earth wire.

5. Pull and lift the top panel.

Fig.29

MW-2000776-2

Fig.30

MW-2000777-1

Fig.31

MW-2000778-1

Fig.32

MW-2000779-1

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Page 36

6. Screw the lifting rings into the locations provided. Tightening torque: 23 N.m.

Important The rings are supplied with the boiler.

7. Remove the screws attaching the boiler to the pallet.

8. Use carrying bars or slings (not provided) to move the boiler.

Sling attachment angle β < 60°

POWER HT+ 1.130 126 kg

POWER HT+ 1.150 132 kg

Caution Moving the boiler is a job for two people.

9. Close the boiler.

(1)

Adjustment range for the feet: 30 mm

10. Level the boiler using the adjustable feet.

Fig.33

MW-2000780-1

Fig.34

>100 kg

MW-2000781-1

Fig.35

MW-2000782-2

(1)

5 Before installation

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5.4.2 POWER HT+ 1.200 and POWER HT+ 1.250

Transport

Caution

Have at least two people standing by. Handle the appliance with gloves.

Unpacking & initial preparation with rails

1. Remove the cardboard and the polystyrene packing.

2. Remove the protective plastic.

Fig.36

>20°

MW-2000773-1

Fig.37

MW-2000765-2

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Page 38

3. Remove the front panel by pulling firmly on the slots provided.

4. Remove the 2 unloading rails by unscrewing the 4 screws.

5. Rotate the 2 rails by 180°.

Fig.38

MW-2000766-2

Fig.39

MW-2000767-2

Fig.40

MW-2000768-1

180°

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6. Fit the 2 rails on the edge of the pallet.

Caution Ensure there is sufficient space to move the boiler.

7. Remove the four screws attaching the boiler to the pallet.

Fig.41

MW-2000769-2

Fig.42

MW-2000770-2

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8. Slide the boiler onto the unloading rails.

POWER HT+ 1.200 212 kg

POWER HT+ 1.250 232 kg

Caution Moving the boiler is a job for two people.

9. Close the boiler.

(1)

Adjustment range for the feet: 20 mm

10. Level the boiler using the adjustable feet.

Fig.43

MW-2000771-2

>200 kg

Fig.44

MW-2000772-2

(1)

5 Before installation

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Unpacking & initial preparation with slings

1. Remove the cardboard and the polystyrene packing.

2. Remove the protective plastic.

3. Remove the front panel by pulling firmly on the slots provided.

Fig.45

MW-2000765-2

Fig.46

MW-2000766-2

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4. Lift and tilt the control panel.

5. Disconnect the earth wire.

6. Pull and lift the top panel.

Fig.47

MW-4000295-1

Fig.48

MW-4000296-1

Fig.49

MW-4000297-1

5 Before installation

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7. Screw the lifting rings into the locations provided. Tightening torque: 23 N.m.

Important The rings are supplied with the boiler.

8. Remove the screws attaching the boiler to the pallet.

9. Use slings (not provided) to move the boiler.

Sling attachment angle β < 60°

POWER HT+ 1.200 212 kg

POWER HT+ 1.250 232 kg

Caution Moving the boiler is a job for two people.

10. Close the boiler.

Fig.50

MW-4000298-1

Fig.51

MW-4000299-1

>200 kg

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11. Level the boiler using the adjustable feet.

(1) Adjustment range for the feet: 20 mm

Fig.52

MW-4000300-2

(1)

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6 Connecting diagrams

Fig.53 Connection example with a domestic hot water tank

MW-3000022-01

119

1 Boiler flow

2 Heating pump 24 Domestic hot water tank exchanger primary inlet 25 Domestic hot water tank exchanger primary outlet

26 DHW load pump 31 Independent domestic hot water tank

119 Boiler return

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Fig.54 Connection example with a solar domestic hot water tank

MW-1000023-03

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Fig.55 Connection example for boilers in cascade with domestic hot water tank and several heating circuits equipped with

room temperature thermostats

MW-1000024-03

OCI 345

OCI 345 Optional interface unit for boilers in cascade

Fig.56 Connection example for boilers in cascade with domestic hot water tank and several heating circuits equipped with

room temperature thermostats, including underfloor heating circuits

MW-1000025-03

OCI 345

RVS 46

OCI 345 Optional interface unit for boilers in cascade RVS 46 Connection option for underfloor heating

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7 Installation

7.1 General

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

7.2

Accessing the internal boiler components

1. Remove the front panel by pulling firmly on the notches provided.

Lift and tilt the panel holding the control panel

Fig.57

MW-4000259-2

Fig.58

MW-4000260-1

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3. Disconnect the earth wire.

4. Pull and lift the top panel.

5. Unhook the panel holding the control panel then place it on the boiler.

Fig.59

MW-4000261-1

Fig.60

MW-4000262-1

Fig.61

MW-4000263-1

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6. For POWER HT+ 1.130 and POWER HT+ 1.150 only: remove the detachable panel if necessary.

See The disassembly instructions can be found on the detachable panel.

7.3

Hydraulic connections

7.3.1 Connecting the heating circuit

Respect the installations shown in the hydraulic diagrams.

Caution

The heating pipe must be mounted in accordance with the provisions applicable. If installing stop valves, position the fill/drain valve and the expansion vessel between the stop valves and the boiler. Always install a safety valve calibrated to 6 bar on the heating circuit. The safety valve can be connected to a venting pot. The safety valve must not be used to drain the heating circuit.

See

In the case of an assembly with a low-loss header, use the assembly instructions for the low-loss header. If using a cascade kit, use the assembly instructions for the cascade kit. If using an exchanger kit, use the assembly instructions for the plate heat exchanger kit.

Important The pipes are not provided.

Fig.62

MW-4000264-2

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POWER HT+ 1.130 and POWER HT+ 1.150

1. Remove the anti-dust plug located on heating return.

2. Connect the pipe to the heating return.

3. Remove the anti-dust plug on the heating flow.

4. Mount the filling and drain valves to the boiler's inlet and outlet (valves not provided).

Important To facilitate maintenance work, we recommend mounting a stop valve on the heating flow and return pipes.

Caution Position the safety valve between the boiler and the stop valve.

5. Fit the circulating pump on the heating return pipe (circulating pump not provided).

Fig.63

MW-4000266-1

Fig.64

MW-4000267-1

Fig.65

MW-4000268-1

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POWER HT+ 1.200 and POWER HT+ 1.250

Important The brackets are supplied with the boiler.

1. Remove the dust cap located on the boiler's heating inlet and outlet.

2. Apply a sealing product (paste, oakum or Teflon) to the thread then screw the heating circuit flow bracket onto the boiler's heating flow output.

3. Screw the heating circuit return bracket onto the boiler's heating return output.

4. Mount the filling and drain valves to the boiler's inlet and outlet (valves not provided).

Important To facilitate maintenance work, we recommend mounting a stop valve on the heating flow and return pipes.

Caution Position the safety valve between the boiler and the stop valve.

Fig.66

MW-5000808-2

Fig.67

MW-5000809-1

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5. Fit the circulating pump on the heating return pipe (circulating pump not provided).

7.3.2 Connecting the expansion vessel

1. Determine the volume of the expansion vessel according to the volume of water in the heating circuit.

2. Connect the expansion vessel to the heating circuit return pipe.

Volume of the expansion vessel on the heating circuit

Tab.16 Volume of the expansion vessel in relation with the volume of heating circuit

Initial pressure of the expansion ves sel

Volume of the installation (in litres)

100 125 150 175 200 250 300 > 300

50 kPa (0.5 bar)

4.8 6.0 7.2 8.4 9.6 12.0 14.4 Volume of the installation x

0.048

100 kPa (1 bar)

8.0 10.0 12.0 14.0 16.0 20.0 24.0 Volume of the installation x

0.080

150 kPa (1.5 bar)

13.3 16.6 20.0 23.3 26.6 33.3 39.9 Volume of the installation x

0.133

Terms and conditions of validity:

Safety valve calibrated to 0.6 MPa (6 bar). Average water temperature: 70°C. Heating circuit flow temperature: 80°C. Heating circuit return temperature: 60°C. Filling pressure in the system lower than or equal to the initial pressure in the expansion vessel.

7.3.3 Connecting the condensate discharge pipe

The condensate discharge pipe is located inside the boiler.

Do not block the condensate discharge pipe. Set the discharge pipe at a gradient of at least 30 mm per metre, maximum horizontal length 5 metres. Do not drain condensation water into a roof gutter. Connect the condensate discharge pipe in accordance with prevailing standards. It is preferable to use the condensate neutralisers recommended by the manufacturer of the boiler.

1. Connect a plastic hose to the condensate discharge outlet (DN18) or a rigid pipe (DN32).

2. Insert the other end of the hose into a waste water discharge outlet.

Important Treat the condensate in accordance with prevailing local regulations.

Fig.68

MW-5000810-2

Fig.69

MW-3000032-03

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7.4 Gas connection

7.4.1 POWER HT+ 1.130 and POWER HT+ 1.150

Warning Close the main gas valve before starting work on the gas pipes.

The gas pipes are not provided.

Danger The diameters of the pipes must be defined in accordance with the standards in force in your country.

1. Remove the anti-dust plug located on the boiler's gas inlet.

2. Fit a gas stop valve (not provided) on the boiler's gas inlet (G1”).

3. Connect the gas inlet pipe to the gas stop valve.

Caution

Ensure that there is no dust in the gas pipe. Connect the gas pipe in accordance with prevailing standards and regulations. Check the leak-tightness using a leak detector spray.

7.4.2 POWER HT+ 1.200 and POWER HT+ 1.250

Warning Close the main gas valve before starting work on the gas pipes.

The gas pipes are not provided.

Danger The diameters of the pipes must be defined in accordance with the standards in force in your country.

1. Remove the anti-dust plug located on the boiler's gas inlet.

2. Fit a gas stop valve (not provided) on the boiler's gas inlet (G1”1/2).

3. Connect the gas inlet pipe to the gas stop valve:

Caution

Ensure that there is no dust in the gas pipe. Connect the gas pipe in accordance with prevailing standards and regulations. Check the leak-tightness using a leak detector spray.

7.5

Air supply/flue gas outlet connections

7.5.1 Classification

The discharge and intake pipes must be certified for the appropriate configuration and must meet the requirements of the prevailing installation standards in the country.

Fig.70

MW-5000805-1

Fig.71

MW-5000806-2

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The pipes must deliver a maximum pressure drop in compliance with the values given in the table below.

Tab.17 Configurations and recommendations for the flue system

Configuration Description

B23 – B

23P

Connection to a chimney using a connection kit (single pipe in a flue, combustion air taken from the boil er room). The maximum pressure drop in the pipes ΔP must not exceed the values given in the table below. The pipes must be certified for this type of use and for a temperature in excess of 100°C.

Tab.18

Model Maximum pressure drop ΔP (Pa)

POWER HT+ 1.130 200

POWER HT+ 1.150 200

POWER HT+ 1.200 200

POWER HT+ 1.250 200

Air/flue gas connection using concentric pipes to a horizontal terminal (so-called forced flue). The terminal parts of the singled-up discharge pipe must be scheduled inside a 50 cm square.

Air/flue gas connection using concentric pipes to a vertical terminal (roof outlet). The terminal parts of the singled-up discharge pipe must be scheduled inside a 50 cm square.

Air/flue gas connection to a collective flue for sealed boilers. The chimney or flue gas pipe must be suitable for such use.

Separate air/flue gas connection using a bi-flow adapter. The terminal parts of combustion air intake and combustion product discharge pipes must not be plan ned on opposite walls of the building.

The maximum pressure drop in the pipes ΔP must not exceed the values given in the table below. The pipes must be certified for this type of use and for a temperature of more than 100 °C. The terminal part of the flue gas pipe must be certified as complying with the EN 1856-1 Standard. If installing discharge and intake pipes not supplied by Baxi, these must be certified for the type of use scheduled and present a maximum pressure drop in line with the values given in the table below.

Tab.19

Model Maximum pressure drop ΔP (Pa)

POWER HT+ 1.130 170

POWER HT+ 1.150 280

POWER HT+ 1.200 230

POWER HT+ 1.250 230

Flue gas connection to a collective flue for sealed boilers. The air supply is individual via a terminal coming from outside the building. The chimney or flue gas pipe must be suitable for such use.

Important

Only original components are authorised for connection to the boiler and for the terminal. The clear section must comply with the standard. The chimney must be swept before installing the discharge flue.

Caution Ensure that the flue gas discharge pipes are securely attached to the wall with suitable retaining flanges to prevent any damage and guarantee the tightness of every gasket in the circuit.

Caution The minimum gradient of the condensates discharge pipe from the boiler to the waste water discharge must be 1 cm per linear metre.

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7.5.2 Coaxial pipes

Fig.72 POWER HT+ 1.130 and POWER HT+ 1.150

300300

107

MW-6000204-2

Fig.73 POWER HT+ 1.200 and POWER HT+ 1.250

300300

127

MW-4000269-1

305

This type of pipe is used to discharge exhaust gases and draw in combustion air, whether outside the building or in the flue gas pipes. The 90° coaxial elbow is used to connect the boiler to the discharge/intake pipes in every direction due to the 360° rotation option. It can also be used as an extra elbow in combination with the coaxial pipe or the 45° elbow.

If discharging to the outside, the discharge/intake pipe must stick out of the wall by at least 18 mm to allow fitting of the aluminium rosette and its sealing unit and thus prevent any infiltration of water.

Insertion of a 90° elbow reduces the total length of the pipe by 1 metres. Insertion of a 45° elbow reduces the total length of the pipe by 0.5 metres. The first 90° elbow is not taken into account in calculating the maximum length available.

7.5.3 Flue gas system accessories

A detailed list of flue system accessories can be found in our catalogue.

7.5.4 Pipes in cascade (not provided)

These types of pipes are used to discharge the combustion products from several boilers interlinked in cascade via a shared flue gas collector. The collector must be used solely to connect the boilers to the flue gas pipe. .

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Caution The calculation of the length of the flue gas pipe must be made by a qualified technician during the installation design phase, in accordance with the requirements of the prevailing standards.

7.5.5 Lengths of the air/flue gas pipes

Warning The discharge and intake pipes must be certified for the adapted configuration and their pressure drops must comply with the values given in the following corresponding table(s).

Caution Be careful that the discharge pipe outlet for combustible products is not directed towards a habitation zone.

B23p configuration

All countries except Italy Ventilation of the premises: in accordance with the NFP 45 – 204 or DTU 61.1 standard.

Italy Ventilation of the premises: in accordance with the UNI CIG 7129-2001 standard.

All countries Lengths L1, L2 and L3 are obtained with Centrotec pipes covered by CE marking and

the TAD Technical Application Directive.

Fig.74 Flexible flue system B

23p

MW-3000034-2

Fig.75 Rigid flue system B

23p

MW-3000035-2

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Important For B

23p

configurations, the lengths given in the tables are valid

for horizontal pipes with a maximum length of 1 metre. For each additional metre of horizontal pipe, subtract 1.2 m from the vertical length L

max

Tab.20 Flue gas system connection type B

23p

Arrangement Configuration Unit POWER HT

+ 1.130

POWER HT + 1.150

POWER HT+

1.200

POWER HT+

1.250

mm Ø 110 Ø 110 Ø 160 Ø 160

L3<2m + 2 elbows (L1 + L2) rigid m 20 27 39 23

L3<2m + 2 elbows (L1 + L2) flexible m 7 9 19 13

L3<5m + 2 elbows (L1 + L2) rigid m 17 23 36 19

L3<5m + 2 elbows (L1 + L2) flexible m - 6 15 10

Configuration C

Important Pipes subject to technical evaluation 14 08–1289.

Fig.77

MW-4000280-1

3 4

130 - 150 kW

200 - 250 kW

3 4

Tab.21 Maximum length for configuration C

Configuration Unit POWER HT+ 1.130 POWER HT+ 1.150 POWER HT+ 1.200 POWER HT+ 1.250

mm Ø 110 Ø 110 Ø 160 Ø 160

1 m L < 8 L < 8 L < 45 L < 22

2 m L < 8 L < 8 L < 45 L < 22

3 m L < 7 L < 7 L < 42 L < 19

4 m L < 7 L < 7 L < 41 L < 18

Fig.76 Through-roof flue system B

23p

MW-3000036-1

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Configuration C

Important Pipes subject to technical evaluation 14 08–1289.

Fig.78 Maximum length of the connections

MW-4000281-1

L L

5 7 8

130 - 150 kW

200 - 250 kW

5 8

Tab.22 Maximum length for configuration C

Configuration Unit POWER HT+ 1.130 POWER HT+ 1.150 POWER HT+ 1.200 POWER HT+ 1.250

mm Ø 110 Ø 110 Ø 160 Ø 160

5 m L < 8 L < 8 L < 20 L < 11

6 m L < 8 L < 8 L < 22 L < 12

7 m L < 6 L < 6 L < 16 L < 6

8 m L < 7 L < 7 L < 20 L < 9

Configuration C

Important Pipes subject to technical evaluation 14 08–1289.

Tab.23 Maximum length for configuration C

Configuration Unit POWER HT+ 1.130 POWER HT+ 1.150 POWER HT+ 1.200 POWER HT+ 1.250

mm Ø 110 Ø 110 Ø 160 Ø 160

9 m (L1 + L2) max = 20

(L1 max) = 10

(L1 + L2) max = 20 (L1 max) = 10

(L1 + L2) max = 42 (L1 + L2) max = 21

Fig.79 Maximum length of the connections

MW-3000173-01

L1 L2

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7.6 Electrical connections

7.6.1 Recommendations

Only qualified professionals may carry out electrical connections, always with the power off. Earth the appliance before making any electrical connections. France: Earthing must comply with the NFC 15-100 standard. Power the appliance via a circuit that includes an omni-polar switch with contact opening distance of 3 mm or more. When making electrical connections to the mains, respect the polarities.

Danger Position the various electrical cables in such a way that they never touch the heating pipes. Keep the various electrical cables far enough from the heating pipes so that they cannot be damaged by the effect of the heat.

7.6.2 Recommended cable cross section

Decide on the cable according to the following information:

Distance of the appliance from the power source. Upstream protection. Neutral operating conditions.

Tab.24 Specifications of the power cable and the power source

Cable cross section 3 x 1.5 mm²

Curve C (circuit breaker) 10 A

Caution Provide a separate power supply for the pump and a power switch, if necessary.

7.6.3

Wiring the terminal blocks

Use a flat-bladed screwdriver less than 3.5 mm in width.

1. Press down the spring on the terminal block with a suitable screwdriver.

Fig.80

MW-3000037-04

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2. Insert the stripped part of the wire into the corresponding connector.

Caution The length to be stripped must be between 10 and 12 mm.

3. Release the pressure on the spring. The wire is attached.

4. Check that the wire is attached by pulling it gently upwards. If it comes

out of the housing, repeat step 3.

7.6.4 Description of the power supply terminal block

Fig.83

MW-1000015-06

Aux 1-2 230 V

TA TS

L N T1 T2 L LN N S1 S2 L N

4 6 8

5 7

1 Power supply 230 V 50 Hz 2 Power supply auxiliary circuit 1

Fig.81

MW-3000038-05

Fig.82

MW-3000039-04

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3 Power supply auxiliary circuit 2 4 Room thermostat 5 Heating circuit pump

6 Domestic hot water pump 7 Safety contact 8 Boiler pump

Important Terminals 5, 6 and 7 are associated with the parameters QX1, QX2 and QX3 in the Configuration menu

Caution All connections are made to the terminal blocks provided for that purpose in the boiler connection box. The output available per outlet is 180 W (1 A, with cos ϕ = 0.8) and the inrush current must be less that 5 A. If the load exceeds either of these values, the control must be relayed using a contactor that must not be installed in the control panel under any circumstances. The sum of the currents from all outlets must not exceed 6.3 A.

7.6.5

Description of the sensor terminal block

Fig.84

MW-1000016-05

123 12123

2 / 3

1 Auxiliary sensor 1 - BX3: flow sensor + cascade

return connection

2 Auxiliary sensor 2 - BX2: heating circuits collector

flow sensor connection

3 Outside sensor

4 Domestic hot water sensor - BX1 5 Room temperature sensor 1 6 Room temperature sensor 2 7 Room temperature sensor 3 8 Boiler pump modulation (PWM)

7.6.6 Connecting boilers in cascade with a OCI 345 module

Connect the boilers included in the boiler cascade with OCI 345 modules (electronic devices that handle communication through a BUS link). The OCI 345 modules must be connected to each boiler with three connectors.

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Tab.25 Connecting the boiler components in cascade

Component 1 Component 2

OCI 345 module on the boiler X30 connector on the boiler PCB. (Flat cable supplied with the

OCI 345 module)

MB connector of a OCI 345 module MB connector of a boiler OCI 345 module

DB connector of a OCI 345 module DB connector of a boiler OCI 345 module

To make the connections between the various MB and DB connectors, use a shielded cable with the following specifications:

Type Cross section Maximum length

HAR H05 VV-F

2 x 1.5 mm

200 m

7.7 Filling the installation

7.7.1 POWER HT+ 1.130 and POWER HT+ 1.150

Before filling the heating installation, rinse it thoroughly.

1. Open the plug on the automatic air vent.

2. Fill the heating system until you reach a pressure of between 0.15 and

0.2 MPa (1.5 and 2 bar).

3. Check the tightness of the hydraulic connections.

4. Completely vent the heating circuit for optimum running.

For more information, see Flushing new installations and installations less than 6 months old, page 64 Flushing an existing installation, page 64

7.7.2 POWER HT+ 1.200 and POWER HT+ 1.250

Before filling the heating installation, rinse it thoroughly.

Fig.85 Connecting OCI 345 modules for

boilers in cascade

MW-3000042-2

DB.MB DB.MB DB.MB

MW-2000815-02

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1. Open the plug on the automatic air vent.

2. Fill the heating system until you reach a pressure of between 0.15 and

0.2 MPa (1.5 and 2 bar).

3. Check the tightness of the hydraulic connections.

4. Completely vent the heating circuit for optimum running.

For more information, see Flushing new installations and installations less than 6 months old, page 64 Flushing an existing installation, page 64

7.7.3

Flushing new installations and installations less than 6 months old

1. Clean the installation with a powerful universal cleaner to eliminate

debris from the system (copper, hemp, flux).

2. Thoroughly flush the installation until the water runs clear and shows

no impurities.

7.7.4 Flushing an existing installation

1. Remove any sludge from the installation.

2. Flush the installation.

3. Clean the installation with a universal cleaner to eliminate debris from

the system (copper, hemp, flux).

4. Thoroughly flush the installation until the water runs clear and shows

no impurities.

7.7.5 Filling the siphon

1. Completely fill the siphon until it overflows.

Danger Fill the siphon to the top. If the siphon is empty, there is a danger of poisoning by combustion products.

7.8 Completing installation

1. Reconnect the earth wire and put the front panel back in place.

2. Discard the various packaging items.

MW-2000814-01

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8 Commissioning

8.1 General

Commissioning the boiler is done for first time use, after a prolonged shutdown (more than 28 days) or after any event that would require complete re-installation of the boiler. Commissioning of the boiler allows the user to review the various settings and checks to be made to start up the boiler in complete safety.

8.2 Check-list before commissioning

1. Check that the gas type supplied matches the data shown on the boiler's data plate.

Warning Do not commission the boiler if the gas supplied does not match the gas types approved for the boiler.

2. Check connection of the earth wires.

3. Check the tightness of the gas circuit from the non-return valve to the burner.

4. Check the hydraulic circuit from the boiler's isolation valves to the connection to the heating body.

5. Check the hydraulic pressure in the heating system.

6. Check the electricity supply connections to the various boiler components.

7. Check the electrical connections on the thermostat and the other external components.

8. Check the ventilation in the room in which the system is installed.

9. Check the flue gas connections.

10. Test the boiler at full load.

11. Test the boiler at part load.

8.3 Commissioning procedure

8.3.1 Checking the gas inlet

Danger Ensure that the boiler is switched off.

1. Open the main gas valve.

2. Open the gas valve on the boiler.

3. Open the front panel.

4. Check the gas supply pressure at the pressure outlet on the gas valve unit.

5. Check the tightness of the gas connections made after the gas valve unit in the boiler.

6. Check the tightness of the gas pipe, including any valves, from the non-return valve to the burner. The test pressure must not exceed

0.06 bar (0.006 MPa).

7. Vent the gas supply pipe by unscrewing the pressure outlet on the gas valve unit. Close the outlet again when the pipe has been sufficiently vented.

8. Check the tightness of the gas connections in the boiler.

8.3.2 Checking the electrical connections

1. Check for the presence of the recommended circuit breaker.

2. Check the electrical connection to the mains.

3. Check the connection of the sensors.

4. Check the position of the sensors. Respect the distance of the sensors according to the power.

5. Check the connection of the circulating pump(s).

8 Commissioning

7702630 - v02 - 11082018 POWER HT + 65

Page 66

6. Check the connection of the optional equipment.

7. Check the length of the cables and that they are firmly secured in the cable clamps.

8.3.3 Checking the hydraulic circuit

1. Check the siphon, which must be completely filled with water.

2. Check that there are no leaks on the boiler's hydraulic connections.

3. Check the pressure in the expansion vessel before filling the system.

8.3.4

Initial commissioning

During initial commissioning of the boiler:

the 311:Commissioning function function starts up automatically: see 312:Deaeration apprx 10min function below, the control panel needs to be synchronised with the boiler: the default language for the control panel is English.

1. Wait for the end of the 311:Commissioning function function.

2. Press the button for 5 seconds.

Synchronisation between the boiler and the control panel is running and shows its progress from 1% to 100%. Synchronisation may take several minutes.

3. Select the language.

4. Set the date and time.

5. Configure the parameters for the installation.

312:Deaeration apprx 10min function

This function enables the air inside the heating circuit to be removed once installation is complete, after maintenance operations, or after the primary circuit has been drained of water.

The error message: 311:Commissioning function is displayed during initial commissioning of the boiler.

To clear the error message: 311:Commissioning function, proceed as follows:

1. From the main menu, simultaneously press the

keys for

approximately 6 seconds.

The name of the functions 301–303–304–312 flashes.

2. Turn the button to select the required function.

Fig.86

MW-4000270-1

14:13

1.5 ba

18. Février 2014 Mardi

8 Commissioning

66 POWER HT + 7702630 - v02 - 11082018

Page 67

3. Access the 312:Deaeration apprx 10min function.

The 312:Deaeration apprx 10min parameter appears.

Turn the button to select 312:Deaeration apprx 10min.

5. Confirm the selection by pressing the button.

The function 312 appears.

6. Wait for the end of the venting cycle. The PCB will activate an on/off cycle of the pump which will last 10 minutes. The function will stop automatically at the end of the cycle.

Important Do not interrupt this venting function.

8.4 Gas settings

8.4.1 Configuring the fan speed

The boiler's fan speed has to be configured according to gas type before the gas valve is set.

1. Go to the installer parameters.

2. Select the Boiler Settings menu by turning the button.

3. Confirm the menu selection by pressing the button.

4. Modify parameter 2441 Fan speed heating max according to the gas

type. Use the button to select and modify the parameter.

5. Confirm the setting by pressing the button.

6. Select the Burner control menu by turning the button.

7. Modify parameters 9512 Required speed ignition, 9524 Required speed LF and 9529 Required speed HF according to the gas type.

Use the

button to select and modify the parameters.

Fan speed according to gas type

Tab.26 Fan speed for gas type G20

Parameter Output Unit POWER

HT+ 1.130

POWER HT+ 1.150

POWER HT+ 1.200

POWER HT+ 1.250

9524 Required speed LF minimum rpm 1550 1800 1480 1560

9524 Required speed LF minimum for boil

ers in cascade

rpm 1550 1800 1480 1560

9529 Required speed HF 2441 Fan speed heating max

maximum rpm 5800 6900 5550 6150

9512 Required speed ignition ignition rpm 2500 2500 2200 2200

Fig.87

Régime manuel

Fonction d’arrêt régulation

Fonction de purge

MW-5000815-1

Fig.88

MW-5000818-1

Régime manuel

Fonction d’arrêt régulation

Fonction de purge

8 Commissioning

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Page 68

Tab.27 Fan speed for gas type G25

Parameter Output Unit POWER

HT+ 1.130

POWER HT+ 1.150

POWER HT+ 1.200

POWER HT+ 1.250

9524 Required speed LF minimum rpm 1550 1800 1450 1570

9524 Required speed LF minimum for boil

ers in cascade

rpm 1550 1800 1450 1570

9529 Required speed HF 2441 Fan speed heating max

maximum rpm 5800 6900 5050 6100

9512 Required speed ignition ignition rpm 2500 2500 2200 2200

Tab.28 Fan speed for gas type G25.1

Parameter Output Unit POWER

HT+ 1.130

POWER HT+ 1.150

POWER HT+ 1.200

POWER HT+ 1.250

9524 Required speed LF minimum rpm 1550 1800 1450 1570

9524 Required speed LF minimum for boil

ers in cascade

rpm 1550 1800 1450 1570

9529 Required speed HF 2441 Fan speed heating max

maximum rpm 5800 6900 5300 6150

9512 Required speed ignition ignition rpm 2500 2500 2200 2200

Tab.29 Fan speed for gas type G27

Parameter Output Unit POWER

HT+ 1.130

POWER HT+ 1.150

POWER HT+ 1.200

POWER HT+ 1.250

9524 Required speed LF minimum rpm 1550 1800 1450 1570

9524 Required speed LF minimum for boil

ers in cascade

rpm 1550 1800 1450 1570

9529 Required speed HF 2441 Fan speed heating max

maximum rpm 5800 6900 5300 6300

9512 Required speed ignition ignition rpm 2500 2500 2500 2500

Tab.30 Fan speed for gas type G31

Parameter Output Unit POWER

HT+ 1.130

POWER HT+ 1.150

POWER HT+ 1.200

POWER HT+ 1.250

9524 Required speed LF

minimum rpm 1950 2000 1370 1510

9524 Required speed LF minimum for boil

ers in cascade

rpm 1950 2000 1370 1510

9529 Required speed HF 2441 Fan speed heating max

maximum rpm 5800 6900 5200 5830

9512 Required speed ignition ignition rpm 2500 2500 2200 2200

8 Commissioning

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8.4.2 Setting the air/gas ratio (maximum heat input)

1. Accessing the Chimney sweep function 303 function. The Chimney sweep function parameter appears.

2. Turn the button to select Chimney sweep function.

3. Confirm the selection by pressing the button. The 303 function appears.

4. Turn the button to select Full load.

5. Press the button to adjust the setting.

6. Confirm the selection by pressing the button.

Fig.89

Régime manuel

Fonction de ramonage

Fonction d’arrêt régulation

MW-4000282-FR-01

Fig.90

Fonction d’arrêt régulateur

Fonction de ramonage

MW-4000283-FR-01

Fig.91

Pleine charge

303:Fonct ramonage

Puissance brûleur

Régler ?

MW-4000284-FR-01

8 Commissioning

7702630 - v02 - 11082018 POWER HT + 69

Page 70

7. Unscrew:

POWER HT+ 1.130 POWER HT+ 1.150

the left-hand plug, which corresponds to the flue gas measurement point connec tion.

POWER HT+ 1.200 POWER HT+ 1.250

the plug for the rear nozzle.

8. Connect the flue gas analyser to the measurement point.

Important

Ensure that the opening around the sensor is completely sealed when taking measurements. POWER HT+ 1.130 and POWER HT+ 1.150: Insert the sensor into the flue gas measurement point to at least 8 cm.

9. Set the boiler's heat input to 100% at full load.

10. Measure the percentage of CO2 in the flue gases.

11. Compare the values measured with the set point values in the Control and setting values table.

12. If necessary, adjust the air/gas ratio using the gas flow rate adjustment screw.

Important

Turn the gas adjustment screw clockwise to reduce the CO

content. Turn the gas adjustment screw counter-clockwise to increase the CO2 content.

Tab.31 Checking and setting values for gas type G20 / G25 / G25.1 / G27 / G31

Boiler model Maximum CO (ppm)

POWER HT+ 1.130 < 250

POWER HT+ 1.150 < 250

POWER HT+ 1.200 < 250

POWER HT+ 1.250 < 250

Fig.92

130 - 150 kW 200 - 250 kW

MW-4000278-2

8 Commissioning

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Page 71

Tab.32 Authorised CO2 ranges at maximum output

Boiler model Type G20 Type G25 Type G25.1 Type G27 Type G31

POWER HT+ 1.130 9.2 +0.2/- 0 9.2 +0.2/- 0 10.3 +0.2/-0 9.2 +0.2/-0 10 +0.2/- 0

POWER HT+ 1.150 9.2 +0.2/- 0 9.2 +0.2/- 0 10.3 +0.2/-0 9.2 +0.2/-0 10 +0.2/- 0

POWER HT+ 1.200 9.2 +0.2/- 0 9.2 +0.2/- 0 9.8 +0.3/-0 8.85 +0.2/-0 10.2 +0.2/- 0

POWER HT+ 1.250 8.85 +0.2/- 0 9.2 +0.2/- 0 9.8 +0.3/-0 8.85 +0.2/-0 10.2 +0.2/- 0

8.4.3

Setting the air/gas ratio (reduced heat input)

1. Accessing the Chimney sweep function 303 function. The Chimney sweep function parameter appears.

2. Turn the button to select Chimney sweep function.

3. Confirm the selection by pressing the button. The 303 function appears.

4. Turn the button to select Partial load.

5. Confirm the selection by pressing the button.

6. Unscrew the left-hand plug, which corresponds to the flue gas

measurement point connection.

7. Connect the flue gas analyser to the connection on the left.

Important

Ensure that the opening around the sensor is completely sealed when taking measurements. POWER HT+ 1.130 and POWER HT+ 1.150: Insert the sensor into the flue gas measurement point to at least 8 cm.

8. Set the boiler's heat input to 0%.

9. Measure the percentage of CO2 in the flue gases.

10. Compare the values measured with the authorised CO2 range in the Control and setting values table.

11. If necessary, adjust the air/gas ratio using the OFFSET adjustment screw.

Important

Turn the gas adjustment screw clockwise to increase the CO

content. Turn the gas adjustment screw counter-clockwise to reduce the CO2 content.

Fig.93

Régime manuel

Fonction de ramonage

Fonction d’arrêt régulation

MW-4000282-FR-01

Fig.94

Fonction d’arrêt régulateur

Fonction de ramonage

MW-4000283-FR-01

Fig.95

charge partielle

303:Fonct ramonage

Puissance brûleur

Régler ?

MW-4000285-FR-01

8 Commissioning

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Page 72

Tab.33 Checking and setting values for gas type G20 / G25 / G25.1 / G27 / G31

Boiler model Maximum CO (ppm)

POWER HT+ 1.130 < 250

POWER HT+ 1.150 < 250

POWER HT+ 1.200 < 250

POWER HT+ 1.250 < 250

Tab.34 Authorised CO2 ranges at minimum output

Boiler model Type G20 Type G25 Type G25.1 Type G27 Type G31

POWER HT+ 1.130 8.5 +0/-0.2 8.5 +0/-0.2 10.0 +0/-0.2 8.5 +0/-0.2 9.7 +0/-0.2

POWER HT+ 1.150 8.5 +0/-0.2 8.5 +0/-0.2 10.0 +0/-0.2 8.5 +0/-0.2 9.7 +0/-0.2

POWER HT+ 1.200 9.0 +0/- 0.2 8.9 +0/-0.2 9.3 +0/-0.3 8.4 +0/-0.2 10.0 +0/-0.2

POWER HT+ 1.250 8.45 +0/- 0.2 8.9 +0/-0.2 9.3 +0/-0.3 8.4 +0/-0.2 10.0 +0/-0.2

8.4.4 Gas valve basic settings

Tab.35 Settings values for a new gas valve

Boiler model Nominal heat input:

Number of turns for the gas flow rate set tings screw

Minimum heat input: Number of turns for the OFFSET set tings screw

POWER HT+ 1.130 4 + 1/4 2

POWER HT+ 1.150 4 2 + 1/2

POWER HT+ 1.200 1 + 1/4 7 + 3/4

POWER HT+ 1.250 1 + 3/8 8 + 5/8

1 Gas flow rate setting screw

The settings screw is screwed down as far as it will go and is then unscrewed according to the number of turns given in the above table.

2 OFFSET setting screw:

1.Remove the protective cap.

2.Use a Torx screwdriver (T40) or flat-head screwdriver (10 mm).

3 The settings screw is screwed down as far as it will go and is then

unscrewed according to the number of turns given in the above table.

4 Refit the cap using a Torx screwdriver (T40) or flat-head

screwdriver (10 mm).

Fig.96 Gas valve for POWER HT+ 1.130

and POWER HT+ 1.150

MW-5000727-1

8 Commissioning

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Page 73

1 Gas flow rate setting screw

The settings screw is screwed down as far as it will go and is then unscrewed according to the number of turns given in the above table.

2 OFFSET setting screw:

1.Remove the protective cap.

2.Use an Allen key.

3 The settings screw is screwed down as far as it will go and is then

unscrewed according to the number of turns given in the above table.

4 Put the cap back in place.

8.4.5 Conversion to propane (G31)

POWER HT+ 1.130 and POWER HT+ 1.150

Caution Only a fully trained, qualified professional may carry out the following operations.

The boiler is pre-set in the factory to run on natural gas H (G20).

Adaptation kits are available for propane (G31).

1. Close the mains gas valve.

2. Disconnect the gas valve electrical connection.

3. Remove the two nuts from the flange under the gas valve.

4. Remove the 4 screws from the flange connecting the gas valve to the venturi.

5. Take out the gas valve.

6. Integrate the restrictor provided for the required gas on the gas valve outlet.

7. Replace the O-ring.

8. Proceed to refit the valve by reversing the steps above.

9. Check the tightness using a leak detector spray.

10. Replace the gas setting label with the one delivered with the boiler and tick the corresponding gas setting.

POWER HT+ 1.200 and POWER HT+ 1.250

Caution Only a fully trained, qualified professional may carry out the following operations.

The boiler is pre-set in the factory to run on natural gas H (G20).

Adaptation kits are available for propane (G31).

1. Close the mains gas valve.

2. Disconnect the gas valve electrical connection.

3. Remove the 8 screws from the elbow connecting the gas valve to the venturi (4 screws per flange).

4. Remove the elbow.

5. Integrate the restrictor provided for the required gas on the gas valve outlet.

6. Change the O-rings.

7. Proceed to refit the elbow by reversing the steps above.

8. Check the tightness using a leak detector spray.

9. Replace the gas setting label with the one delivered with the boiler and tick the corresponding gas setting.

Fig.97 Gas valve for POWER HT+ 1.200

and POWER HT+ 1.250

MW-5000728-1

8 Commissioning

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Page 74

9 Operation

9.1 Use of the control panel

9.1.1 Modifying the user parameters

1. Press the

key to access the parameters.

Important Press the

key to return to the main display.

The user parameters can now be accessed. Use the

button to

select and modify them.

9.1.2 Modifying the installer parameters

1. Press the

key to access the parameters.

2. Press the and

keys simultaneously for at least 6 seconds.

3. Select the Commissioning menu by turning the button.

4. Confirm the menu selection by pressing the button.

Important Press the

key to return to the main display.

The parameters for the Commissioning mode can now be

accessed. Use the

button to select and modify them.

9.2

Starting up the boiler

1. Open the gas cock.

Fig.98

MW-3000052-EN-02

14:13

1.5 ba

18. February 2014 Tuesda

Fig.99

MW-3000052-EN-02

14:13

1.5 ba

18. February 2014 Tuesda

Fig.100

MW-3000082-EN-03

---------------------------------------------------

Information

Set time and date

Information

9 Operation

74 POWER HT + 7702630 - v02 - 11082018

Page 75

2. Start up the boiler by pressing the ON/OFF switch.

3. Press the key to access the shortcuts menu.

4. Select the Standby/operation parameter by turning the button.

5. Press the button to start up the boiler.

The symbol disappears.

9.3

Stopping the boiler

Important Choose the operating mode Off or Standby.

1. Switch off the boiler by pressing the ON/OFF switch.

2. Close the gas cock.

9.3.1 Putting the boiler in Standby mode

1. Press the key to access the shortcuts menu.

2. Select the Standby/operation parameter by turning the button.

3. Press the button to put the boiler in standby.

The symbol is displayed.

9.4 Frost Protection

The electronic management system of the boiler includes protection against frost. If the water temperature falls below 5°C, the burner starts up in order to provide a water temperature of 30°C.

This function only works if the boiler is turned on, the gas supply open and the hydraulic pressure correct.

9.4.1

Activating the Off

1. Press the key to access the shortcuts menu.

2. Select the parameter Central heating mode CH1 by turning the button.

3. Confirm the selection by pressing the button.

4. Select the parameter Off by turning the button.

5. Confirm the selection by pressing the button.

The symbol is displayed.

Important When the operating mode Off is activated:

The electrical circuits continue to be powered up. The frost protection function is activated.

Fig.101

MW-3000050-2

9 Operation

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Page 76

9.5 Special functions

Tab.36

Number and Name of the function

Description

301:Manual control The boiler operates in heating mode according to the programmed temperature set point val

ue. Adjustment range: 25 to 90 °C

303:Chimney sweep function Full load: boiler at its maximum heat output,

Part load: reduced heat output, Heating full load: heating function at its maximum heat output.

304:Controller stop Activate this function to facilitate the gas valve calibration operations.

Adjustment range: 100 % (maximum heat output) to 0 % (reduced heat output).

312:Deaeration apprx 10min On: activates the function,

Off: exits the function.

To activate a special function:

1. From the main menu, simultaneously press the

keys for

approximately 6 seconds.

The name of the functions 301–303–304–312 flashes.

2. Turn the button to select the required function.

3. Press the button to activate the selected function.

4. Confirm the selection by pressing the button.

The menu for the selected function flashes.

5. Modify by turning the button

Important To manually interrupt the function, repeat the procedure described above. When the function is deactivated, the display indicates "Off".

For more information, see 312:Deaeration apprx 10min function, page 66

Fig.102

MW-4000270-1

14:13

1.5 ba

18. Février 2014 Mardi

9 Operation

76 POWER HT + 7702630 - v02 - 11082018

Page 77

10 Settings

10.1 List of parameters

10.1.1 Shortcuts menu

Tab.37 Functions accessible with the shortcut key

Parameter Description Adjustment range

Standby/operation Boiler standby/Start-up. Standby : Boiler put on standby.

The symbol is displayed. The boiler's operating modes are deactivated. The frost protection function is activated.

On : Putting the boiler into operation

316:Hot water boost Forcing domestic hot water pro

duction.

On :

Activates the domestic hot water override.

The symbol is displayed. If a domestic hot water tank is connected to the boiler circuit, the boiler will give priority to forcing heating of the DHW tank, independently of the oth er parameters.

Off : Deactivates forcing of domestic hot water.

Central heating mode CH1 Boiler operating mode. On :

The heating is activated in Comfort mode.

The symbols ,

1 2 3

and are displayed.

Reduced:

The heating is activated in Eco mode.

The symbols ,

1 2 3

and are displayed.

Timed :

The heating operates according to the defined tim er programs.

The symbols and

1 2 3

are displayed.

Off :

The boiler is shut down and frost protection is ac tive.

The symbol is displayed.

Room temperature CH1 Room temperature set point in

comfort mode.

Hot water heating Setting domestic hot water pro

duction.

On : Enables domestic hot water production. Off :

Disables domestic hot water production.

The symbol disappears from the display.

Eco : Not used.

Hot water temp setpoint Domestic hot water temperature

set point.

10.1.2 Information menu

Tab.38 Information menu

Information Description Unit

Room temperature Is displayed if the control system unit is configured as a room

temperature appliance

Room temperature min

Room temperature max

Boiler temperature Boiler flow temperature °C

Outside temp Outdoor temperature °C

10 Settings

7702630 - v02 - 11082018 POWER HT + 77

Page 78

Information Description Unit

Outside temp min

Minimum outside temperature value memorised

Important The outside sensor must be connected.

°C

Outside temp max

Maximum outside temperature value memorised

Important The outside sensor must be connected.

°C

Hot water temp 1 Domestic hot water temperature

Important The value displayed comes from the sensor on the boiler's domestic hot water circuit.

°C

Collector temp 1 Instantaneous temperature of the solar panel sensor (when asso

ciated to a solar system)

°C

State central heating CH1 Operating mode of heating circuit 1

State central heating CH2 Operating mode of heating circuit 2

State central heating CH3 Operating mode of heating circuit 3

State hot water Domestic hot water circuit operating mode

State boiler Boiler operating mode

State solar Indicates solar running (when associated to a solar system) -

Telephone customer service Telephone number of the After Sales Service

10.1.3 List of user parameters

Tab.39 Structure of the user menu

Menu Feature

Set time and date Setting the time and date

Operator section Change Language

Programming lock

Time program Time hot water

Predefined or custom programs with a maximum of 3 comfort or domestic hot water production ranges for each 24 hours

Holiday Settings Eco heating or frost protection mode for a defined period

Temps / mode CH1 Temps / mode CH2 Temps / mode CH3

Choice of Comfort/Eco/Auto/Standby mode for each heating circuit with re duced or comfort temperature

Tab.40 Set time and date menu

Parameter number Parameter Description

1 Hours / minutes Setting the time

2 Day / month Setting the day and the month

3 Year Setting the year

Tab.41 Operator section menu

Parameter number Parameter Description Factory setting

20 Change Language Setting the interface language English

27 Programming lock Setting the programming lock

Off: the parameters can be displayed and modified On: the parameters can be displayed but cannot be modi fied

Off

10 Settings

78 POWER HT + 7702630 - v02 - 11082018

Page 79

Tab.42 Time program menu

Parameter number Parameter Description

Heating circuit 1Heating circuit 2 Heating circuit 3

500 520 540

Select days

Selecting the days or group of days for the timer pro gram.

514 534 554 Mon-Sun Selecting a default timer program.

501 521 541 1st Time ON Start of timer period 1.

502 522 542 1st Time OFF End of timer period 1.

503 523 543 2nd Time ON Start of timer period 2.

504 524 544 2nd Time OFF End of timer period 2.

505 525 545 3rd Time ON Start of timer period 3.

506 526 546 3rd Time OFF End of timer period 3.

516 536 556 Default values Reset the timer programming parameters (Yes / No)

Tab.43 Time hot water menu

Parameter number Parameter Description

560 Select days Selecting the days or group of days for the timer program.

574 Mon-Sun Selecting a default timer program.

561 1st Time ON Start of timer period 1.

562 1st Time OFF End of timer period 1.

563 2nd Time ON Start of timer period 2.

564 2nd Time OFF End of timer period 2.

565 3rd Time ON Start of timer period 3.

566 3rd Time OFF End of timer period 3.

576 Default values Reset the timer programming parameters (Yes / No).

Tab.44 Holiday Settings menu

Parameter number Parameter Description Factory setting

Heating circuit 1

Heating circuit 2

Heating cir cuit 3

641 651 661 Select Selecting the holiday period Period 1

642 652 662

Start

Selecting the day and month of the start of the current holiday period.

643 653 663

End

Selecting the day and month of the end of the current holiday period.

648 658 668

Operating level

Boiler operating mode during the holiday period.

Off Reduced

Off

10 Settings

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Page 80

Tab.45 Temps / mode CH1 – Temps / mode CH2 – Temps / mode CH3 menu

Parameter number Parameter Description Factory setting

Heating circuit 1

Heating circuit 2

Heating cir cuit 3

700 1000 1300

Operating mode

The control unit is installed on the boiler:

Off : heating is deactivated. Timed : the heating is dependent on the timer pro gram. Reduced : heating is in permanent reduced mode. On : heating is in permanent reduced mode.

The control unit is installed as a room temperature control system:

Off : the boiler starts up when the room tempera ture falls below the frost protection set point. Timed : the heating is dependent on the timer pro gram. Reduced : the room temperature set point is the reduced set point (Parameters 712, 1010, 1310) On : the room temperature set point is the comfort set point (Parameters 710, 1010, 1310)

710 1010 1310 Comfort

setpoint

20 °C

712 1012 1310 Reduced

temp setpoint

16 °C

10.1.4 List of installer parameters

Tab.46 Structure of the installer menu

Menu Sub-menu

Installer Operator section

Temps / mode CH1 Temps / mode CH2 Temps / mode CH3

Temps / mode hot water

Boiler Settings

Solar

Configuration

Error

Service/special operation

State

Diagnostics heat generation

Burner control

Tab.47 Operator section menu

Parameter number

Parameter Description Factory set

ting

24 Lighting Off

Temporarily Permanently

Temporarily

29 Units °C, bar

°F, PSI

°C, bar

10 Settings

80 POWER HT + 7702630 - v02 - 11082018

Page 81

Parameter number

Parameter Description Factory set

ting

40 Used as Operator unit 1 : The control system unit is installed on the boiler.

Room unit 1 : The control system unit is configured as a room tem perature unit for heating circuit 1. Room unit 2 : The control system unit is configured as a room tem perature unit for heating circuit 2. Room unit 3 : The control system unit is configured as a room tem perature unit for heating circuit 3.

Operator unit 1

42 Assignment device 1As Room Temperature Unit 1, the action of the control system unit can

be assigned to CC1 or to two heating circuits:

Temps / mode CH1 Central heating 1 and 2 Central Heating 1 and 3 All central heatings

All central heatings

43 Action operation Locally : The room temperature unit controls only the respective

heating circuit. Centrally : Only room temperature unit 1 can be centralised. It also controls the domestic hot water and standby mode.

Centrally

54 Readjustment room

sensor

-3°C to +3°C 0 °C

70 Software version

Tab.48 Temps / mode CH1 – Temps / mode CH2 – Temps / mode CH3 menus

Parameter number Parameter Description Unit Factory set

ting

Heating circuit 1

Heating circuit 2

Heating circuit 3

714 1014 1314 Frost protection

setpoint

°C 6

720 1020 1320 Heating curve

slope

Heating curve gradient: The regulator calcu lates the flow temperature set point which is used for the control system, according to out side weather conditions.

– Heating

circuit 1:

1.5 Heating circuit 2:

1.5 Heating circuit 3:

1.5

730 1030 1330 Summer/winter

heating limit

Limit temperature for switching between Heat ing/Protection mode. Triggers or shuts down the heating in the course of the year according to variations in outside temperature. This switch is made automatically in Automatic Mode.

732 1032 1332 24-hour heating

limit

The heating is shut down when the outside temperature is equal to the room temperature + parameter 732 (deactivated in Comfort mode).

°C 0

740 1040 1340 Flow temp setpoint

min

The flow set point calculated is limited by the set value.

°C 25

741 1041 1341 Flow temp setpoint

max

The flow set point calculated is limited by the set value.

°C 80

742 1042 1342 Flow temp setpoint

room stat

The set flow value is applied in room tempera ture thermostat mode. ‘ ---‘ the boiler is running in modulation mode.

°C 80

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Parameter number Parameter Description Unit Factory set

ting

Heating circuit 1

Heating circuit 2

Heating circuit 3

750 1050 1350 Room influence Influence of the room temperature and the

outside temperature on calculating the flow temperature: ---%: Simple regulation in ac cordance with outside weather conditions: 1…99%: Regulation in accordance with out side weather conditions with room tempera ture influence. 100%: Regulation in accordance with the room temperature only.

% 50

760 1060 1360 Room temp

limitation

Cuts the circulating pump if the room tempera ture exceeds the current set point + parameter 760, 1060, 1360.

°C 0.5

809 1109 1409 Continuous pump

operation

No : The heating circuit / boiler pump may be shut down during an accelerated decline in temperature or when the room temperature set point is reached. Yes : The heating circuit / boiler pump also continues to run during the accelerated de cline in temperature and when the room tem perature set point is reached.

– no

834 1134 1434 Actuator running

time

Setting the stroke of the servomotor on the mixing valve used

seconds 30

850 1150 1450 Floor curing

function

Controlled screed-drying function:

Off : The function is inoperative. Curing/functional heating : Active for 7 days, 3 days at 25 °C and 4 days at 55 °C. Curing heating : Active for 18 days, 6 days from 25 °C to 55 °C increasing by 5 °C a day, 6 days at 55 °C, 6 days from 55 °C to 25 °C diminishing by 5 °C a day. Functional/curing heating : "Functional Heat ing" cycle first, and then "Ready for Occupa tion". Manually : Regulation is based on the "Man ual Control Drying" set point.

S Off

851 1151 1451 Floor curing setp

manually

The flow temperature set point of the "Manual" controlled drying function can be set separately for each heating circuit.

°C 25

855 1155 1455 Floor curing setp

current

Displays the current day of the controlled screed-drying function. With ‘---‘ the function is deactivated.

- ‘---’

856 1156 1456 Days

complete.current

Displays the current flow temperature set point of the controlled screed-drying function. With ‘---‘ the function is deactivated.

- ‘---’

Tab.49 Temps / mode hot water menu

Parameter number

Parameter Description Factory setting

1600 Operating mode Off: Permanent running at the frost protection set point.

On : Domestic hot water loading is done automatically at the comfort set point. Eco : The temperature maintenance function is deactivated.

1610 Hot water temp

setpoint

DHW set point during release times 60°C

1612 Reduced temp

setpoint

Reduced temperature set point outside release times 35°C

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Parameter number

Parameter Description Factory setting

1620 Release Start-up enabled:

Time hot water : This setting provides domestic hot water prep aration with a dedicated timer program. Time setting central heating : Domestic hot water is released with the same timer program as the heating circuits. 24h/day : Default setting for instantaneous boilers.

Time hot water

1640 Legionella function Off

Periodically Fixed weekday

Off

1641 Legionella funct

periodically

Determines after how many days the anti-legionella function must be reactivated.

1642 Legionella funct

weekday

Determines on which day the anti-legionella function must be ac tivated.

Monday

1644 Legionella funct time Determines the start-up time of the anti-legionella function

(Hours / Minutes).

– –/– –

1660 Circulating pump

release

The circulating pump is tripped during the release time:

Time central heating CH3 Hot water release Time hot water Time auxiliary

Hot water release

1663 Circulation setpoint The regulator monitors the temperature measured while the anti-

legionella function is running.

45 °C

1680 Optg mode

changeover

In cases of external switching via the Hx inputs, the regime to which the switch must be made must first be defined.

None Off

None

Tab.50 Boiler Settings menu

Parameter number

Parameter Description Unit Factory set

ting

2214 Setpoint manual

control

In manual mode, the flow temperature set point can be set to a fixed value.

°C 80 °C

2441 Fan output heating

max

Maximum fan speed in heating mode. rpm depending

on the mod el

Tab.51 Solar menu (with additional extension module)

Parameter number

Parameter Description Unit Factory set

ting

3810 Temp diff on Min. ΔT between the solar collector sensor and the solar

domestic hot water tank for running the solar pump.

°C 8

3811 Temp diff off Max. ΔT between the solar collector sensor and the solar

domestic hot water tank for shutting down the solar pump.

°C 4

3830 Collector start

function

To measure the temperature on the solar collector correctly (pipes empty) (--- = deactivated)

min 30

3831 Min run time

collector pump

Minimum running of the collector pump. Seconds 30

3850 Collector overtemp

prot

If there is a danger of overheating in the collector, tank loading continues to eliminate any excess heat.

°C 120

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Tab.52 Configuration menu

Parameter number

Parameter Description Factory set

ting

5710 Temps / mode CH1 Activation of heating circuit 1:

Off On

5715 Temps / mode CH2 Activation of heating circuit 2:

Off On

Off

5721 Temps / mode CH3 Activation of heating circuit 3:

Off On

Off

5730 Hot water sensor Selection of the domestic hot water sensor:

Hot water sensor B3 : Domestic hot water sensor for tank Thermostat : The sensor used for domestic hot water is a thermostat

Hot water sensor B3

5731 HW controlling

element

Type of actuator for controlling the domestic hot water requirement:

No charging request : No function Charging pump : Domestic hot water loading is done with a pump. Diverting valve : Domestic hot water loading is done with a bypass valve.

Diverting valve

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Parameter number

Parameter Description Factory set

ting

5890 Relay output QX1 None

Circulating pump Q4 : Domestic hot water circulating pump. El imm heater HW K6 Collector pump Q5 : Circulating pump for the solar collector circuit. Cons circuit pump VK1 Q15 : The VK1 consumer circuit pump can be used for an additional boiler consumer. Boiler pump Q1 : The pump connected is used for circulating the boil er water. Bypass pump Q12 Alarm output K10 : Presence of an error signalled by relay. Closure of the contact is on a time delay of 2 min. 2nd pump speed CH1 Q21 2nd pump speed CH2 Q22 2nd pump speed CH3 Q23 heating pump CH3 Q20 : The heating circuit with CH3 pump is activa ted (3WV Zone). Cons circuit pump VK2 Q18 System pump Q14 : The pump connected is used as the mains pump. Heat gen shutoff valve Y4 Solid fuel boiler pump Q10 : Integration of a solid fuel boiler: Circulat ing pump in the boiler circuit. Time setting 5 K13 : The relay is controlled according to the settings on timer program 5. Buffer return valve Y15 Solar pump ext exch K9 Solar ctrl elem buffer K8 Solar ctrl elem swi pool K18 : Contact for heating the swimming pool with solar energy (if using several heat exchangers). Cons circuit pump VK2 Q18 Cascade pump Q25 : Boiler pump common to all boilers in a cas cade. St tank transfer pump Q11 Hot water mixing pump Q35 HW interm circ pump Q33 Heat request K27 Refrigeration request K28 : Cooling requirement for cooling circuit 1. heating pump CH1 Q2 : The heating circuit with CH1 pump is activa ted. heating pump CH2 Q6 : The heating circuit with CH2 pump is activa ted. Hot water ctrl elem Q3 : Pump / distribution valve for hot water tank. Instant WH ctrl elem Q34 : Pump / distribution valve for boiler produc ing instantaneous hot water. Water refill K34: Solenoid filling valve command. 2nd boiler pump speed Q27 : Boiler pump second speed. Status output K35 Status information K36 Flue gas damper K37 Fan shutdown K38 : Fan shut-down function for cutting the power to the fan if it is not used.

heating pump CH1 Q2

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Parameter number

Parameter Description Factory set

ting

5931 Sensor input BX2 None : No function on the sensor input.

Hot water sensor B31 : Sensor in the bottom section of the domestic hot water tank. Collector sensor B6 : Solar collector sensor. HW circulation sensor B39 : Circulation / DHW preparation sensor. Buffer sensor B4 : Sensor in the top section of the storage tank. Buffer sensor B41 : Sensor in the bottom section of the storage tank. Flue gas temp sensor B8 : Flue gas sensor Common flow sensor B10 : Common flow sensor (cascade). Solid fuel boiler sensor B22 : Sensor for solid fuel boiler. HW charging sensor B36 Buffer sensor B42 : Third sensor (in the middle) of the storage tank. Common return sensor B73 Cascade return sensor B70 : Cascade return sensor. Swimming pool sensor B13 : Swimming pool sensor. Solar flow sensor B63 : Solar flow sensor for measuring efficiency. Solar return sensor B64 : Solar return sensor for measuring efficien cy. Primary exch sensor B26

None

5932 Sensor input BX3

See Sensor input BX2

None

5970 Function input H4 None : Default setting for boilers with domestic hot water tank.

Flow measurement Hz : Default setting for instantaneous boilers. Error/alarm message

None

5971 Contact type H4 NC

Error/alarm message

5973 Frequency value 1 H4Definition of the parameters for collector specifications 15

5974 Function value 1 H4 Definition of the parameters for collector specifications 20

5975 Frequency value 2 H4Definition of the parameters for collector specifications 162

5976 Function value 2 H4 Definition of the parameters for collector specifications 120

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Parameter number

Parameter Description Factory set

ting

5977 Function input H5 None

Optg mode change CHs+HW : Heating and domestic hot water circuit changeover mode. Optg mode changeover HW : Domestic hot water circuit changeover mode. Optg mode changeover CHs : The regimes of the heating circuits are switched to parameter mode on line 900-1200-1500. Optg mode changeover CH1 : The regimes of the heating circuits are switched to parameter mode on line 900-1200-1500. Optg mode changeover CH2 : The regimes of the heating circuits are switched to parameter mode on line 900-1200-1500. Optg mode changeover CH3 : The regimes of the heating circuits are switched to parameter mode on line 900-1200-1500. Heat generation lock : The generator is locked. All heating circuit and domestic hot water temperature requirements are ignored. (boiler frost protection active) Error/alarm message : The input causes an error message on the regulator. Consumer request VK1 : The input causes an error message on the regulator. Consumer request VK2 : The input causes an error message on the regulator. Release swimpool source htg : Swimming pool demand Excess heat discharge : Enables an external generator to force the switches (heating circuit, DHW, Hx pump) to dissipate any heat sur plus. Release swi pool solar : This function enables the release of solar swimming pool heating by an external resource. Operating level HW : The temperature level can be adjusted by a contact (external timer program) rather than by the internal timer pro gram. Operating level CH1 : The temperature level can be adjusted by a contact (external timer program) rather than by the internal timer pro gram. Operating level CH2 : The temperature level can be adjusted by a contact (external timer program) rather than by the internal timer pro gram. Operating level CH3 : The temperature level can be adjusted by a contact (external timer program) rather than by the internal timer pro gram. Room thermostat CH1 : This input is used to generate a room ther mostat demand for heating circuit 1. Room thermostat CH2 : This input is used to generate a room ther mostat demand for heating circuit 2. Room thermostat CH3 : This input is used to generate a room ther mostat demand for heating circuit 3. Hot water flow switch : Connection of the flow rate controller on the instantaneous water heater. Hot water thermostat : Connection of the domestic hot water tank thermostat. Pulse count : Impulse counter. Checkb sign flue gas damper : Feedback on flue gas valve position. Boiler flow switch : Start-up authorisation by flow rate controller. Boiler pressure switch : Start-up authorisation by pressure switch.

Room thermostat CH1

5978 Contact type H5 NC

6020 to 6068 See following table

6097 Sensor type collector Type of collector sensor:

NTC Pt 1000

NTC

6100 Readjustm outside

sensor

The value of the outdoor temperature measurement can be offset by +/3 °C.

0 °C

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Parameter number

Parameter Description Factory set

ting

6200 Save sensors Records the sensors used in the appliance. no

6212 Check no. heat

source 1

Information on the manufacturer

6213 Check no. heat

source 2

6215 Check no. storage

tank

6217 Check no. heating

circuits

6230 Info 1 OEM

6231 Info 2 OEM

Tab.53 Configuration menu: parameters for extension modules 1, 2 and 3

Parameter Description Factory setting

Extension module 1 Extension module 2 Extension module 3

6020 : Funct value 2 H2 module 3

6021 : Function extension module 2

6022 : Function extension module 3

None Multifunctional : The functions that can be assigned to the in puts/outputs. Temps / mode CH1 : Settings corresponding to the operator chapter on "Heating Circuit 1". Temps / mode CH2 : Settings corresponding to the operator chapter on "Heating Circuit 2". Temps / mode CH3 : Settings corresponding to the operator chapter on "Heating Circuit 3". Return temp controller : Not used Solar HW : Settings correspond ing to the operator chapter on "Thermal Solar". Primary contr/system pump : Not used

Without

6024 : Funct input EX21 module 1

6026 : Funct input EX21 module 2

6028 : Funct input EX21 module 3

None Limit thermostat CH

None

6030 : Relay output QX21 module 1

6033 : Relay output QX21 module 2

6036 : Relay output QX21 module 3

See QX1 relay outlet

without

6031 : Relay output QX22 module 1

6034 : Relay output QX22 module 2

6037 : Relay output QX22 module 3

See QX1 relay outlet

without

6032 : Relay output QX23 module 1

6035 : Relay output QX23 module 2

6038 : Relay output QX23 module 3

See QX1 relay outlet

without

6040 : Sensor input BX21 module 1

6042 : Sensor input BX21 module 2

6044 : Sensor input BX21 module 3

See BX2 sensor inlet

without

6041 : Sensor input BX22 module 1

6043 : Sensor input BX22 module 2

6045 : Sensor input BX22 module 3

See BX2 sensor inlet

without

6046 : Function input H2 module 1

6054 : Function input H2 module 2

6062 : Function input H2 module 3

See H5 inlet function

without

6047 : Contact type H2 module 1

6055 : Contact type H2 module 2

6063 : Contact type H2 module 3

NC NO

6049 : Voltage value 1 H2 module 1

6057 : Voltage value 1 H2 module 2

6065 : Voltage value 1 H2 module 3

Definition of parameters for collec tor specifications

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Parameter Description Factory setting

Extension module 1 Extension module 2 Extension module 3

6050 : Funct value 1 H2 module 1

6058 : Funct value 1 H2 module 2

6066 : Funct value 1 H2 module 3

Definition of parameters for collec tor specifications

6051 : Voltage value 2 H2 module 1

6059 : Voltage value 2 H2 module 2

6067 : Voltage value 2 H2 module 3

Definition of parameters for collec tor specifications

6052 : Funct value 2 H2 module 1

6060 : Funct value 2 H2 module 2

6068 : Funct value 2 H2 module 3

Definition of parameters for collec tor specifications

Tab.54 Error menu

Parameter number

Parameter Description Factory set

ting

6704 Display SW

diagnostic code

Display of the software troubleshooting code:

No Yes

Yes

6705 SW diagnostic code Software troubleshooting code currently pending.

6706 Burn ctrl phase

lockout pos

Locking phase indicating the place where the error occurred.

6710 Reset alarm relay Alarm relay reset.

6800 History 1 Last error that occurred.

6805 SW diagnostic code 1Last troubleshooting code that occurred.

6806 Burner control phase 1Last locking phase indicating the place where the error occurred.

6810 – 6996 History 2 to History 20Fault history.

Tab.55 Service/special operation menu

Parameter number

Parameter Description Factory set

ting

7045 Time since

maintenance

Resetting the boiler operating time after boiler servicing. 0 months

7130 Chimney sweep

function

Chimney sweep function:

Off On

Off

7131 Burner output Burner output during the chimney sweep function:

Partial load Full load Max heating load

Full load

7140 Manual control Manual control function:

Off On

Off

7143 Controller stop

function

Regulator shut-down function:

Off On

Off

7145 Controller stop

setpoint

Set point output during the regulator shut-down function: 0 % to 100 %. 100%

7146 Deaeration function Venting function:

Off On

Off

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Parameter number

Parameter Description Factory set

ting

7147 Type of venting Venting cycle operating mode:

None Heating circuit continuous Heating circuit cycled Hot water continuous Hot water cycled

None

7170 Telephone customer

service

7231 Refill time current

week

Value displayed 0 s

7232 Refill time to date Value displayed 0 s

7233 Number of refills to

date

Value displayed 0

Tab.56 State menu

Parameter num ber

Parameter Description

8000 State central heating

CH1

8001 State central heating

CH2

8002 State central heating

CH3

8003 State hot water

8005 State boiler

8007 State solar

8008 State solid fuel boiler

8009 State burner

8010 State buffer

8011 State swimming pool

Tab.57 Diagnostics heat generation menus

Parameter num ber

Parameter Description

8310 Boiler temperature

Control temp

Value displayed

8311 Boiler setpoint

Control setpoint

8313 Control sensor

8314 Boiler return temp

8315 Boiler return temp

setpoint

8316 Flue gas temp

8321 Primary exchanger temp

8323 Fan speed

8326 Burner modulation

8330 Hours run 1st stage Value reset

8526 Solar Gain 24 Hour

8527 Total Solar Gain

8530 Hours run solar

8531 Hours run collect

overtemp

8532 Hours run collector pump

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Tab.58 Burner control menus

Parameter num ber

Parameter Description

9512 Required speed ignition Ignition speed set point adjustable on the operating interface.

9524 Required speed LF Rotation speed set point at partial load adjustable on the operating interface.

9529 Required speed HF Rotation speed set point at nominal load adjustable on the operating interface.

6624 Manual source lock

10.2

Setting the parameters

10.2.1 Setting the date and time

1. Press the

key to access the parameters.

2. Select the Set time and date menu by turning the button.

3. Confirm the menu selection by pressing the button. The parameter Hours / minutes appears.

4. Confirm the parameter selection by pressing the button. The parameter flashes, it can be modified.

5. Modify the parameter by turning the button.

6. Confirm the setting by pressing the button.

7. Set the other parameters if necessary.

Important Press the

key to return to the main display.

10.2.2 Selecting the language

1. Press the

key to access the parameters.

2. Select the Operator section menu by turning the button.

3. Confirm the menu selection by pressing the button. The Change Language parameter appears.

4. Confirm the menu selection by pressing the button. The language currently used flashes.

5. Modify the parameter by turning the button.

6. Confirm the setting by pressing the button.

Important Press the

key to return to the main display.

Fig.103

MW-3000052-EN-02

14:13

1.5 ba

18. February 2014 Tuesda

Fig.104

12:00Hours / minutes

Set time and date

MW-3000055-EN-02

Fig.105

MW-3000058-EN-02

English

erator section

Change language

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10.2.3 Changing the operating mode

1. Press the key to access the shortcuts menu.

2. Select the parameter Central heating mode CH1 by turning the

button.

3. Press the button to confirm.

4. Select the appropriate operating mode.

5. Press the button to confirm.

Important Press the

key to return to the main display.

For more information, see Description of the symbols, page 26

10.2.4 Forcing domestic hot water production

1. Press the key to access the shortcuts menu.

2. Select the parameter 316:Hot water boost by turning the button.

3. Press the button to start forcing domestic hot water.

Important

Press the button a second time to stop forcing domestic hot water.

Important Press the

key to return to the main display.

10.2.5 Setting the room temperature set point (On mode)

1. Press the key to access the shortcuts menu.

2. Select the parameter Room temperature CH1 by turning the

button.

3. Press the button to confirm.

4. Turn the button to modify the temperature set point.

5. Press the button to confirm.

Important Press the

key to return to the main display.

10.2.6

Modifying the domestic hot water production mode

1. Press the key to access the shortcuts menu.

2. Select the parameter Hot water heating by turning the button.

3. Press the button to confirm.

4. Select the appropriate operating mode.

5. Press the button to confirm.

Important Press the

key to return to the main display.

Fig.106

MW-3000060-EN-02

Timed

Central heatin

g mode CH1

Settin

g NOT confirmed

Fig.107

MW-3000063-EN-02

Room temperature CH1

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10.2.7 Setting the domestic hot water temperature set point

1. Press the key to access the shortcuts menu.

2. Select the parameter Hot water temp setpoint by turning the

button.

3. Press the button to confirm.

4. Turn the button to modify the temperature set point.

5. Press the button to confirm.

Important Press the

key to return to the main display.

10.2.8

Setting the room temperature set point (Reduced mode)

Press the

key to access the parameters.

2. Select the Temps / mode CH1 menu by turning the button.

3. Confirm the menu selection by pressing the button. The parameter Operating mode appears.

4. Select the Reduced temp setpoint menu by turning the button.

5. Confirm the menu selection by pressing the button. The room temperature set point (Reduced mode) flashes.

6. Turn the button to modify the temperature set point.

7. Press the button to confirm.

Important Press the

key to return to the main display.

10.2.9 Programming a Holiday period

This series of functions is used to program the boiler's behaviour in holiday periods or during prolonged absences. The various parameters are used to program one of eight Holiday periods.

Important When the function is activated, the symbol is displayed.

1. Press the

key to access the parameters.

2. Select the Holiday heating CH1 menu by turning the button.

3. Confirm the menu selection by pressing the button . The Select parameter appears.

Fig.108

MW-3000067-EN-03

Hot water temp setpoint

Fig.109

MW-3000070-EN-03

Reduced temp setpoint

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4. Select the Holiday period to be programmed by turning the button.

Confirm by pressing the button.

6. Select the Start parameter by turning the button.

7. Confirm the menu selection by pressing the button .

8. Select and confirm the start date (day/month) of the holiday period

with the

button.

9. Confirm by pressing the button.

10. Select the End parameter by turning the button.

11. Confirm the menu selection by pressing the button .

12. Select and confirm the end date (day/month) of the holiday period with the button.

13. Confirm by pressing the button.

14. Select the Operating level parameter by turning the button.

15. Confirm the menu selection by pressing the button .

16. Select the boiler's operating mode during the holiday period by turning the button.

17. Confirm the menu selection by pressing the button .

Fig.110

MW-3000073-EN-02

Period 1

Holida

heating CH1

Preselection

Fig.111

MW-3000075-EN-02

- - / - -Day / month

Holida

heating CH1

Period 1: Start

Fig.112

MW-3000078-EN-02

- - / - -Day / month

Holida

heating CH1

Period 1: End

Fig.113

MW-3000080-EN-02

Holiday heating CH1

Operating level

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10.2.10 Using the fixed-speed boiler

Using the boiler according to heat input makes it possible to calibrate the gas valve.

The heat input is the speed of the boiler in percentage of the nominal output.

1. From the home screen, press the and

keys simultaneously.

2. Select the parameter Controller stop function by turning the button.

3. Press the button to confirm.

The parameter Controller stop function On appears.

4. Press the button to confirm.

304:Controller stop appears.

5. Press the button to modify the heat input value from 0 to 100 % by turning the

button.

6. Press the button to confirm the heat input.

Important Press the

key to return to the main display and reactivate the

control system.

10.2.11

Selecting a heating circuit

The control panel can manage up to three different heating circuits.

1. From the home screen, turn the button to select one of the three heating circuits available.

2. Press the button to confirm.

3. Turn the button to temporarily modify the temperature set point on the selected heating circuit.

4. Press the button to confirm.

The selected heating circuit is active.

Fig.114

MW-3000085-EN-02

14:13

1.5 ba

18. February 2014 Tuesda

Fig.115

MW-3000088-EN-02

Controller stop function

Fig.116

MW-3000089-EN-02

80%Adjust?

304:Controller sto

function

Controller sto

setpoin

0% 100%

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10.2.12 Locking/Unlocking parameter modification

It is possible to lock all functions associated with the

key to prevent

unauthorised persons from modifying the parameters.

Locking parameter modification

1. Press the

key to access the user parameters menu.

2. Select the Operator unit menu by turning the button.

3. Confirm the menu selection by pressing the button.

4. Select menu 27 Programming lock by turning the button.

5. Confirm the menu selection by pressing the button.

6. Select the setting On by turning the button.

7. Confirm the menu selection by pressing the button.

The parameters can be displayed but cannot be modified.

Unlocking parameter modification

It is necessary to enter a temporary unlocking phase to modify the parameter Programming lock. This parameter enables parameter modification to be locked/unlocked.

1. Press the

key to access the user parameters menu.

2. Press the key and the button simultaneously for around 6 seconds.

Important Unlocking is temporary and lasts 1 minute.

temporarily unlocked is displayed.

3. Press the

key to access the user parameters menu.

4. Select the Operator unit menu by turning the button.

5. Confirm the menu selection by pressing the button.

6. Select menu 27 Programming lock by turning the button.

Fig.117

MW-3000091-EN-02

Operator unit

Programming lock

Off

Fig.118

MW-3000092-EN-02

Operator unit

Programming lock

Off

Fig.119

MW-3000093-EN-02

14:13

1.5 ba

18. February 2014 Tuesda

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7. Confirm the menu selection by pressing the button.

Select the setting On by turning the button.

9. Confirm the menu selection by pressing the button.

The parameters can be modified.

10.2.13 Timer program

Important Activate the operating mode Timed

The various timer programming functions are used to program start-up and automatic shut-down of the boiler during predefined time ranges. Timer programming is done for days of the week, from Monday to Sunday. Groups of days are predefined.

Tab.59 Weekly intervals Values of the parameters Select days (500, 520, 540) for heating circuits 1, 2 and 3 and the parameters Select days (560) for

domestic hot water.

Pre-setting selected Days programmed

Mon-Sun Monday - Tuesday - Wednesday - Thursday - Friday - Satur

day - Sunday

Mon-Fri Monday - Tuesday - Wednesday - Thursday - Friday

Sat-Sun Saturday - Sunday

Mon Monday

Tue Tuesday

Wed Wednesday

Thu Thursday

Fri Friday

Sat Saturday

Sun Sunday

1 Period of operation at the comfort temperature 2 Period of operation in reduced mode

Tab.60 Daily time ranges Values of the parameters Select default timings? (514, 534, 554) for heating circuits 1, 2 and 3 and the parameter Select default

timings? (574) for domestic hot water.

Fig.120

MW-3000096-EN-02

Operator unit

Programming lock

Fig.121 Example of a time range

BM-0000025-GB-03

10:03

2.2 bar

05. March 2010 Friday

1( ) 2( )

10 Settings

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Page 98

Pre-setting selected Hours programmed

Time setting 1 6:00 to 23:00

Time setting 2 06:00...08:00 – 17:00...23:00

Time setting 3 06:00...08:00 – 11:00...13:00 – 17:00...23:00

Default time ranges

Tab.61 Time ranges according to the groups of days selected Program line 514 (heating), 574 (domestic hot water)

Groups of days Pre-set programs

On 1 - Off 1 On 2 - Off 2 On 3 - Off 3

Mon-Sun 06:00 - 08:00 11:00 - 13:00 17:00 - 23:00

Mon-Fri 06:00 - 08:00 17:00 - 23:00

Sat-Sun 06:00 - 23:00

Tab.62 Time ranges according to the days selected Program line 501, 502, 503, 504, 505, 506 (heating) - 561, 562, 563, 564, 565, 566 (domestic hot water)

Single days Pre-set programs

On 1 - Off 1 On 2 - Off 2 On 3 - Off 3

Monday-Tuesday-Wed nesday-Thursday-FridaySaturday-Sunday

06:00 - 08:00 11:00 - 13:00 17:00 - 23:00

Selecting a Timer Program

1. Select a heating circuit.

2. Press the

key to access the parameters.

3. Select the Time central heating CH1 menu by turning the button.

Important

For heating circuits 2 and 3, select the parameters Time central heating CH2 or Time setting 3/CHP. For the domestic hot water circuit, select the parameter Time hot water.

4. Confirm the menu selection by pressing the button.

The parameter Select days (500, 520, 540 or 560) appears.

Fig.122

MW-3000071-EN-03

---------------------------------------------------

Information

Set time and date

10 Settings

98 POWER HT + 7702630 - v02 - 11082018

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5. Confirm the parameter selection by pressing the button.

The current selection flashes.

6. Select a weekly interval by turning button.

7. Confirm the weekly interval selection by pressing the button.

8. Select the parameter Select default timings? (514, 534, 554 or 574) by turning the button.

9. Confirm the parameter selection by pressing the button.

The current selection flashes.

10. Select the desired time range by turning the button.

11. Confirm the time range selection by pressing the button.

Important Press the

key to return to the main screen.

For more information, see Copying a time range, page 101

Customising the time ranges

1. Select a heating circuit.

2. Press the

key to access the parameters.

Fig.123

MW-3000130-EN-02

Mon - Sun

Time central heatin

CH1

Select days

Fig.124

MW-3000131-EN-02

Select default timings?

Time central heating CH1

Mon - Sun

Fig.125

MW-3000132-EN-02

Time setting 1Set to

Time central heatin

CH1

Mon - Sun

10 Settings

7702630 - v02 - 11082018 POWER HT + 99

Page 100

3. Select the Time central heating CH1 menu by turning the button.

Important

For heating circuits 2 and 3, select the parameters Time central heating CH2 or Time setting 3/CHP. For the domestic hot water circuit, select the parameter Time hot water.

4. Confirm the menu selection by pressing the button.

The parameter Select days (500, 520, 540 or 560) appears.

5. Confirm the menu selection by pressing the button.

The current selection flashes.

6. Select a weekly interval.

7. Confirm the menu selection by pressing the button.

8. Select the parameter 1st Time ON (501, 521, 541 or 561) by turning the button.

9. Confirm the menu selection by pressing the button.

The beginning of the first time range flashes.

10. Select the end of the first time range by turning the button.

Important Select the value --:-- in order not to program a first time range.

11. Confirm the value programmed by pressing the button.

Fig.126

MW-3000071-EN-03

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Information

Set time and date

Fig.127

MW-3000133-EN-02

Mon - Sun

Time central heating CH1

Select days

Fig.128

MW-3000134-EN-02

06:00

Time central heating CH1

Mon - Sun: 1st Time ON

Fig.129

MW-3000135-EN-02

06:00

Time central heating CH1

Mon - Sun: 1st Time ON

10 Settings

100 POWER HT + 7702630 - v02 - 11082018

Baxi POWER HT+ 1.130, POWER HT+ 1.150, POWER HT+ 1.200, POWER HT+ 1.250 Installation, User And Service Manual

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