Baxi Platinum BC iPlus Installation And Service Manual

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MW-3000529-01

Installation and Service Manual

Reversible air/water "Split Inverter" heat pump

Platinum BC iPlus

iMPI/H 4-8

iMPI/E 4-8

iMPI/H 11-16

iMPI/E 11-16

iMPI/H 4–8 insulated

iMPI/E 4-8 insulated

iMPI/H 11–16 insulated

iMPI/E 11-16 insulated

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Contents

1 Safety instructions and recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.1 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.2 General instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.3 Electrical safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

1.4 Refrigerant safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1.5 Domestic water safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

1.6 Hydraulic safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

1.7 Recommendations for the installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

1.8 Specific instructions for service, maintenance and breakdowns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

1.9 Liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2 About this manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.1 Additional documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.2 Symbols used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.2.1 Symbols used in the manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.2.2 Symbols used on the appliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

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

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

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

3.1.2 Factory test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

3.2 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

3.2.1 Heat pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

3.2.2 Heat pump weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.2.3 Combination heaters with medium-temperature heat pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.2.4 Sensor specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

3.2.5 Circulating pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

3.3 Dimensions and connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

3.3.1 AWHP 4.5 MR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

3.3.2 AWHP 6 MR-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

3.3.3 AWHP 8 MR-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

3.3.4 AWHP 11 MR-2 – AWHP 16 MR-2 – AWHP 11 TR-2 – AWHP 16 TR-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

3.3.5 iMPI with hydraulic back-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

3.3.6 iMPI with electrical back-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

3.4 Electrical diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

4 Description of the product . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

4.1 Operating principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

4.2 Main components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

4.3 Standard delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

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

5.1 Regulations governing installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

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

5.2.1 Treatment of the heating water . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

5.2.2 Special precautions for the connection of the heating circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29

5.3 Choice of the location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

5.3.1 Data plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

5.3.2 Overall space needed by the indoor module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

5.3.3 Distance between modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

5.3.4 Installing the outdoor unit on the ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

5.4 Fitting the outdoor sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

5.4.1 Recommended positions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

5.4.2 Positions to be avoided . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

6 Connecting diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

6.1 Connection for the iMPI heat pump with electrical back-up with a domestic hot water tank and an underfloor heating

circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36

6.1.1 Connect and configure the iMPI heat pump with electrical back-up with a domestic hot water tank and a

direct circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37

6.2 Connection for the iMPI heat pump with electrical back-up with 2 circuits and a buffer tank . . . . . . . . . . . . . . . . . . . . 38

6.2.1 Connect and configure the iMPI heat pump with electrical back-up with 2 circuits and a buffer tank . . . . . . 39

6.3 Connection for the iMPI heat pump with electrical back-up with 2 circuits with a low-loss header . . . . . . . . . . . . . . . .40

Contents

2 AWHP-2 iMPI 7685645 - v04 - 07032018

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6.3.1 Connect and configure the iMPI heat pump with electrical back-up with a direct circuit, a circuit with mixing

valve, a low-loss header and two TXM connected thermostats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

6.4 Connection for the iMPI heat pump with hydraulic back-up with a direct circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

6.4.1 Connect and configure the iMPI heat pump with hydraulic back-up with a direct circuit . . . . . . . . . . . . . . . . 42

7 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

7.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

7.2 Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

7.2.1 Mounting the indoor module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

7.3 Hydraulic connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45

7.3.1 Connecting the heating circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

7.3.2 Connecting the safety valve drain pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

7.4 Refrigeration connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

7.4.1 Installing the refrigeration link . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

7.4.2 Connecting the refrigeration link . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

7.4.3 Test the tightness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

7.4.4 Evacuation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51

7.4.5 Opening the valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

7.5 Electrical connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

7.5.1 Recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51

7.5.2 Routing the cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52

7.5.3 Description of the connection terminal blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

7.5.4 Recommended cable cross section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53

7.5.5 Accessing the PCBs and connection terminal block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

7.5.6 Electrically connecting the outdoor unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

7.5.7 Connecting the outdoor unit bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

7.5.8 Connecting the outside sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

7.5.9 Connecting the hydraulic back-up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

7.5.10 Connecting the power supply for the electrical back-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

7.5.11 Connecting a swimming pool . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62

7.6 Connecting the options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

7.6.1 Connecting an on/off or modulating thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63

7.6.2 Connecting a thermostat with heating/cooling connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

7.7 Filling the installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64

7.7.1 Filling the heating circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

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

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

8.2 Checklist before commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

8.2.1 Checking the heating circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65

8.2.2 Checking the electrical connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

8.2.3 Checking the refrigeration circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

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

8.3.1 CNF menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

8.3.2 Start-up cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .66

8.4 Using the installation wizard on the control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67

8.5 Checking the minimum flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

8.6 Final instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

9 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .70

9.1 Use of the control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

9.1.1 Control panel description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .70

9.1.2 Browsing in the menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

9.1.3 Description of the PCBs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73

9.2 Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

9.3 Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

9.3.1 Switching off the heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

9.3.2 Shutting down the cooling function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

9.4 Frost Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74

10 Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

10.1 Modifying the installer parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

10.2 Installer menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

10.2.1 Installer \CIRCA and CIRCB menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77

10.2.2 Installer \CIRCA and CIRCB\ADV menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

Contents

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10.2.3 Installer \DHW menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79

10.2.4 Installer \DHW\ADV menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

10.2.5 Installer \EHC–04 and SCB-04 menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

10.2.6 Installer \EHC–04 and SCB-04\ADV menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .82

10.3 COUNTERS /TIME PROG / CLOCK menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

10.3.1 COUNTERS, TIME PROG, CLOCK \CNT menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

10.3.2 COUNTERS, TIME PROG, CLOCK \CIRCA, CIRCB and DHW menus . . . . . . . . . . . . . . . . . . . . . . . . . . 86

10.3.3 COUNTERS, TIME PROG, CLOCK \CLK menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

10.4 Description of the parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .87

10.4.1 Running the back-up in heating mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

10.4.2 Setting the switch between heating and production of domestic hot water . . . . . . . . . . . . . . . . . . . . . . . . . . 88

10.4.3 Running the back-up in domestic hot water mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .89

10.5 Setting the parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

10.5.1 Language selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

10.5.2 Selecting the type of outdoor unit and the type of back-up (CN1 et CN2) . . . . . . . . . . . . . . . . . . . . . . . . . . .90

10.5.3 Setting the heating curve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

10.5.4 Configuring the estimated electrical energy consumption function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

10.5.5 Configuring a hydraulic back-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

10.5.6 Configuring the hybrid operating mode of a hydraulic back-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

10.5.7 Configuring a convection fan or underfloor cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

10.5.8 Screed drying with the aid of the heat pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

10.5.9 Drying screed without the heat pump outdoor unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

10.5.10 Supplying the heat pump with photovoltaic energy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

10.5.11 Connecting the installation to a Smart Grid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

10.5.12 Reducing the noise level of the outdoor unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

10.5.13 Detecting an additional or replacement PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .97

10.6 Reading out measured values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

10.6.1 Control system sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100

11 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

11.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

11.2 Checking operation of the appliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .104

11.3 Standard inspection and maintenance operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

11.3.1 Checking the safety devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

11.3.2 Check the hydraulic pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

11.3.3 Cleaning the casing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

11.3.4 Draining the heating circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

11.4 Specific maintenance operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

11.4.1 Cleaning the 500 µm filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

11.4.2 Replacing the battery in the control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106

12 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .107

12.1 Resetting the safety thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

12.2 Error messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .107

12.2.1 Error codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

12.2.2 Fault codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110

12.2.3 Alarm codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .111

12.3 Accessing the error memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111

13 Decommissioning and disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .113

13.1 Decommissioning procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .113

13.2 Disposal and Recycling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .113

Contents

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1 Safety instructions and recommendations

1.1 Safety

Operation

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 haz ards involved. Children shall not play with the appliance. Cleaning and user maintenance shall not be made by children without supervision.

Electrical

The appliance is intended to be permanently connected to the domestic water mains network. Before any work on the appliance, carefully read all documents that accompa ny the product. These documents are also available on our website. See the last page. Install the appliance in accordance with national rules on electrical installation. A disconnection device must be fitted to the permanent pipes in accordance with installation rules. If a power supply cable comes with the appliance and it turns out to be dam aged, it must be replaced by the manufacturer, its after sales service or per sons with similar qualifications in order to obviate any danger. If the appliance is not wired in the factory, carry out the wiring according to the wiring diagram described in the chapter Electrical Connections. See the Instal lation and Service Manual. This appliance must be connected to the protective earth. Earthing must comply with the prevailing installation standards. Earth the appliance before making any electrical connections. Type and calibre of the protective equipment: refer to the chapter Recommen ded cable cross-sections. See the Installation and Service Manual. To connect the appliance to the electricity mains, refer to the chapter Electrical Connections. See the Installation and Service Manual. In order to prevent any danger owing to the unexpected reset of the thermal circuit breaker, this appliance must not be powered through an external switch, such as a timer, or be connected to a circuit which is regularly switched on and off by the electricity provider.

1 Safety instructions and recommendations

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Domestic wa ter

Draining the appliance:

1. Shut off the domestic cold water inlet.

2. Open a hot water tap in the installation.

3. Open a valve on the safety unit.

4. When the water stops flowing, the appliance has been drained.

The pressure limiter device (safety valve or safety unit) must be regularly oper ated in order to remove limescale deposits and ensure that it is not blocked. A pressure limiter device must be fitted to a discharge pipe. As water may flow out of the discharge pipe, the pipe must be kept open to the open air, in a frost-free environment, and at a continuous downward gradient. To ascertain the type or specifications of the pressure limiter and to find out how to connect it, refer to the chapter Connecting the domestic hot water tank to the drinking water mains. See the Installation and Service Manual.

Hydraulics

Caution Respect the minimum and maximum water pressure and tem perature to ensure the appliance operates correctly. See chapter on Technical Specifications.

Installation

Important Allow the space required to install the appliance correctly, re ferring to the chapter Dimensions of the Appliance. See the Installation and Service Manual.

1.2

General instructions

The system must satisfy each point in the rules in force in the country that govern works and interventions in individual homes, blocks of flats or other buildings.

Only qualified professionals are authorised to work on the appliance and the heating installation. They must respect prevailing local and national regulations during fitting, installation and maintenance of the installation.

Commissioning must be performed by a qualified professional.

1.3 Electrical safety

Before making any electrical connections, earth the appliance in accord ance with prevailing standards.

Danger Danger of electric shock: the length of the conductors between the traction arrester device and the terminal blocks must be such that the active conductors are put under tension before the earth con ductor.

Only qualified professionals may carry out electrical connections, always with the power off.

Separate the very low voltage cables from the 230/400 V circuit cables.

1 Safety instructions and recommendations

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1.4 Refrigerant safety

Warning Refrigerant fluid and pipes:

Use only R410A refrigerant fluid to fill the installation. Use tools and pipe components especially designed for use with R410A refrigerant fluid. Use copper pipes deoxidised with phosphorus to carry the re frigerant fluid. Store the refrigerant connection pipes away from dust and hu midity (risk of damage to the compressor). Do not use a load cylinder. Protect the heat pump components, including the insulation and structural elements. Do not overheat the pipes as brazed com ponents may cause damage. Contact between the refrigerant fluid and a flame may result in emissions of toxic gases.

France: Pursuant to Article L. 113-3 of the French Consumer Code, the in stallation of equipment must be done by a certified operator whenever the refrigerant load is in excess of two kilograms or when a refrigerant connec tion is necessary (the case with split systems, even when fitted with a quick coupling device).

All work on the refrigeration circuit must be done by a qualified professio nal, according to prevailing codes of practice and safety in the profession (recovery of the refrigerant, brazing under nitrogen). All brazing work must be done by qualified welders.

Do not touch the refrigeration connection pipes with your bare hands while the heat pump is running. Danger of burn or frost injury.

In the event of a refrigerant leakage:

1. Switch off the appliance.

2. Open the windows.

3. Do not use a naked flame, do not smoke, do not operate electrical contacts.

4. Avoid contact with the refrigerant. Danger of frost injuries.

Locate the probable leak and seal it immediately. Use only original parts to replace a defective refrigeration component.

Use only dehydrated nitrogen for detecting leaks or for pressurised tests.

Do not allow the refrigerant fluid to escape into the atmosphere.

1.5 Domestic water safety

In accordance with safety rules, a safety valve calibrated to 0.7 MPa (7 bar) is mounted on the tank's domestic cold water inlet.

A pressure reducer (not provided) is required when the supply pressure exceeds 80% of the safety valve or safety unit calibration and must be lo cated upstream of the appliance.

There must be no cut-off devices between the safety valve or unit and the domestic hot water tank.

The hydraulic installation must be capable of handling a minimum flow rate at all times.

Heating water and domestic water must not come into contact with each other. Domestic water must not circulate through the exchanger.

Limit temperature at the draw-off point: the maximum domestic hot water temperature at the draw-off point is subject to special regulations in the various countries in which the appliance is sold in order to protect the user. These special regulations be observed when installing the appliance.

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

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In order to limit the risk of being scalded, a thermostatic mixing valve must be installed on the domestic hot water flow pipes.

1.6 Hydraulic safety

When making the hydraulic connection, it is imperative that the standards and corresponding local directives be respected.

If radiators are connected directly to the heating circuit: install a differential valve between the indoor module and the heating circuit.

Keep a heating circuit without thermostatic valve and or without solenoid valve in order to avoid having all valves closed at the same time.

Fit drainage valves between the indoor module and the heating circuit.

Do not add any chemical products to the heating water without first con sulting a water treatment specialist. For example: antifreeze, water soften ers, products to increase or reduce the pH value, chemical additives and/or inhibitors. These may cause faults in the heat pump and damage the heat exchanger.

1.7

Recommendations for the installation

Install the heat pump's indoor module in a frost-free location.

Insulate the pipes to reduce heat losses to a minimum.

Apply refrigerant oil to the beaded parts to facilitate tightening and improve the seal.

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

Do not make any modifications to the heat pump without the written con sent of the manufacturer.

To benefit from extended warranty cover, no modifications should be made to the appliance.

Install the heat pump indoor module and outdoor unit on a solid, stable structure able to bear its weight.

Do not install the heat pump in a place that has an atmosphere with a high salt content.

Do not install the heat pump in a place exposed to steam and combustion gases.

Do not install the heat pump in a place that may be covered in snow.

1.8 Specific instructions for service, maintenance and breakdowns

Maintenance work must be carried out by a qualified professional.

Only a qualified professional is authorised to set, correct or replace the safety devices.

Before any work, switch off the mains electricity to the heat pump, the in door unit and the hydraulic or electrical back-up if connected.

Wait for approx. 20-30 seconds for the outdoor unit capacitors to be dis charged, and check that the lights on the outdoor unit PCBs have gone out.

Before working on the refrigeration circuit, switch off the appliance and wait a few minutes. Certain items of equipment such as the compressor and the pipes can reach temperatures in excess of 100 °C and high pres sures, which may cause serious injuries.

Locate and correct the cause of power cut before resetting the safety ther mostat.

Only genuine spare parts may be used.

Removal and disposal of the heat pump must be carried out by a qualified professional in accordance with prevailing local and national regulations.

Do not allow the refrigerant fluid to escape into the atmosphere.

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After maintenance or repair work, check the entire heating system to en sure that there are no leaks.

Remove the casing only to perform maintenance and repair work. Put the casing back in place after maintenance and repair work.

1.9

Liabilities

Manufacturer's liability Our products are manufactured in compliance with the requirements of the various Directives appli

cable. They are therefore delivered with the marking and any documents necessary. In the inter ests 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 the appliance. Failure to abide by the instructions on using the appliance. Faulty or insufficient maintenance of the appliance.

Installer's liability The installer is responsible for the installation and initial commissioning of the appliance. The instal

ler must observe the following instructions:

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

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2 About this manual

2.1 Additional documentation

This manual contains information on the heat pump's indoor module, in cluding the domestic hot water tank, as well as various items of informa tion on the outdoor unit.

For additional information on the outdoor unit, refer to the manual provided with that unit.

2.2

Symbols used

2.2.1

Symbols used in the manual

This manual uses various danger levels to draw attention to special in structions. 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 in jury.

Caution Risk of material damage.

Important Please note: important information.

See Reference to other manuals or pages in this manual.

2.2.2 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 re

cycling structure.

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

power prior to carrying out any work.

Fig.1 Symbols used on the appliance

1 2

MW-2000068-1

2 About this manual

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1 Information concerning the heat pump: refrigerant type, maximum

allowable operating pressure

2 The symbol indicates compatibility with the TXM connected ther

mostat.

3 Information on the electrical back-up: power supply and maximum

output (only for versions with electrical back-up)

4 Before installing and commissioning the appliance, carefully read

the instruction manuals provided

5 Dispose of used products in an appropriate recovery and recycling

structure

Fig.2 Symbols used on the data plate

MW-5000752-1

2 About this manual

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3 Technical specifications

3.1 Homologations

3.1.1 Directives

This product complies with the requirements of the following European Di rectives and Standards:

Pressure Equipment Directive 2014/68/EU

Low Voltage Directive 2014/35/EU Generic standard: EN 60335-1 Relevant standards: EN 60335-2-21, EN 60335-2-40

Electromagnetic Compatibility Directive 2014/30/EU Generic standards: EN 61000-6-3, EN 61000-6-1 Relevant Standard: EN 55014

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

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

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

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.

3.1.2 Factory test

Before leaving the factory, each indoor module is tested on the following items:

Tightness of the heating circuit Electrical safety Tightness of the refrigerant circuit Tightness of the domestic hot water circuit

3.2 Technical data

3.2.1 Heat pump

Maximum operating pressure: 0.3 MPa (3 bar)

Tab.1 Conditions of use

AWHP 4.5 MR AWHP 6 MR-3 AWHP 8 MR-2

Limit water operating temperatures in heating mode +18 °C/+55 °C +18 °C/+60 °C +18 °C/+60 °C

Limit outdoor air operating temperatures in heating mode -15 °C/+35 °C -15 °C/+35 °C -20 °C/+35 °C

Limit water operating temperatures in cooling mode for uninsulated models

+18 °C/+25 °C +18 °C/+25 °C +18 °C/+25 °C

Limit water operating temperatures in cooling mode for in sulated models

+7°C / +25°C +7°C / +25°C +7°C / +25°C

Limit outdoor air operating temperatures in cooling mode +7 °C/+40 °C +7 °C/+40 °C +7 °C/+40 °C

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Tab.2 Conditions of use

AWHP 11 MR-2

AWHP 11 TR-2

AWHP 16 MR-2 AWHP 16 TR-2

Limit water operating temperatures in heating mode +18 °C/+60 °C +18 °C/+60 °C

Limit outdoor air operating temperatures in heating mode -20 °C/+35 °C -20 °C/+35 °C

Limit water operating temperatures in cooling mode for uninsulated models +18 °C/+25 °C +18 °C/+25 °C

Limit water operating temperatures in cooling mode for insulated models +7°C / +25°C +7°C / +25°C

Limit outdoor air operating temperatures in cooling mode +7 °C/+40 °C +7 °C/+40 °C

Tab.3 Heating mode: outside air temperature +7°C, water temperature at the outlet +35°C. Performances in accordance with

EN 14511-2.

Measure ment type

Unit AWHP 4.5 MRAWHP 6

MR-3

AWHP 8 MR-2

AWHP 11 MR-2

AWHP 11 TR-2

AWHP 16 MR-2

AWHP 16 TR-2

Heat output kW 4.60 5.79 8.26 11.39 11.39 14.65 14.65

Coefficient of Perform ance (COP)

5.11 4.05 4.27 4.65 4.65 4.22 4.22

Absorbed electrical power

kWe 0.90 1.43 1.93 2.45 2.45 3.47 3.47

Nominal wa ter flow rate (ΔT = 5K)

m3/hour

0.88 1.13 1.53 1.96 1.96 2.53 2.53

Tab.4 Heating mode: outside air temperature +2°C, water temperature at the outlet +35°C. Performances in accordance with

EN 14511-2.

Measure ment type

Unit AWHP 4.5 MRAWHP 6

MR-3

AWHP 8 MR-2

AWHP 11 MR-2

AWHP 11 TR-2

AWHP 16 MR-2

AWHP 16 TR-2

Heat output kW 3.47 3.65 5.3 10.19 10.19 12.90 12.90

Coefficient of Perform ance (COP)

3.97 3.23 3.46 3.20 3.20 3.27 3.27

Absorbed electrical power

kWe 0.88 1.13 1.53 3.19 3.19 3.94 3.94

Tab.5 Cooling mode: outside air temperature +35°C, water temperature at the outlet +18°C. Performances in accordance

with EN 14511-2.

Measure ment type

Unit AWHP 4.5 MRAWHP 6

MR-3

AWHP 8 MR-2

AWHP 11 MR-2

AWHP 11 TR-2

AWHP 16 MR-2

AWHP 16 TR-2

Cooling out put

kW 3.80 4.69 7.90 11.16 11.16 14.46 14.46

Energy effi ciency ratio (EER)

4.28 4.09 3.99 4.75 4.75 3.96 3.96

Absorbed electrical power

kWe 0.89 1.15 2.00 2.35 2.35 3.65 3.65

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Tab.6 Common specifications

Measure ment type

Unit AWHP 4.5 MRAWHP 6

MR-3

AWHP 8 MR-2

AWHP 11 MR-2

AWHP 11 TR-2

AWHP 16 MR-2

AWHP 16 TR-2

Power volt age of the outdoor unit

V 230 230 230 230 400 230 400

Start-up amperage

A 5 5 5 5 3 6 3

Maximal amperage

A 12 13 19 29.5 13 29.5 13

Refrigerant fluid R410A

kg 1.3 1.4 3.2 4.6 4.6 4.6 4.6

R410A re frigerant

(1)

tCO2e 2.714 2.923 6.680 9.603 9.603 9.603 9.603

Refrigerant connection (Liquid Gas)

inch 1/4 - 1/2 1/4 - 1/2 3/8 - 5/8 3/8 - 5/8 3/8 - 5/8 3/8 - 5/8 3/8 - 5/8

Max. precharged length

m 7 10 10 10 10 10 10

(1) The quantity of refrigerant in CO2 equivalent is calculated using the following formula: quantity (in kg) of refrigerant x GWP / 1000. The

Global-Warming Potential (GWP) of R410A gas is 2088.

Important The Global-Warming Potential (GWP) of R410A gas is 2088. The values in tonnes of CO2 equivalent are calculated using the

following formula: quantity (in kg) of refrigerant x GWP / 1000.

3.2.2 Heat pump weight

Tab.7 Indoor module

Indoor module

Unit iMPI/H 4-8 iMPI/E 4-8 iMPI/H

11-16

iMPI/E 11–16iMPI/H 4–8

insulated

iMPI/E 4-8 insulated

iMPI/H 11– 16 insulated

iMPI/E 11– 16 insulated

Weight (empty)

kg 36.1 35.5 36.1 35.5 38.2 36.7 38.2 36.7

Tab.8 Outdoor unit

Outdoor unit

Unit AWHP 4.5 MRAWHP 6

MR-3

AWHP 8 MR-2

AWHP 11 MR-2

AWHP 11 TR-2

AWHP 16 MR-2

AWHP 16 TR-2

Weight (empty)

kg 54 42 75 118 130 118 130

3.2.3 Combination heaters with medium-temperature heat pump

Tab.9 Technical parameters for heat pump combination heaters (parameters declared for medium-temperature application)

Product name AWHP-2 iMPI

AWHP 4.5 MR

AWHP-2 iMPI AWHP 6 MR-3

Air-to-water heat pump Yes Yes

3 Technical specifications

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Product name AWHP-2 iMPI

AWHP 4.5 MR

AWHP-2 iMPI AWHP 6 MR-3

Water-to-water heat pump No No

Brine-to-water heat pump No No

Low-temperature heat pump No No

Equipped with a supplementary heater Yes Yes

Heat pump combination heater No No

Rated heat output under average conditions

(1)

Prated

kW 4 4

Rated heat output under colder conditions

Prated

kW 5 4

Rated heat output under warmer conditions

Prated

kW 4 5

Declared capacity for heating for part load at an indoor temperature of 20°C and outdoor tempera ture

= -7°C

Pdh

kW 3.8 3.5

= +2°C

Pdh

kW 4.3 4.5

= +7°C

Pdh

kW 4.5 4.8

= +12°C

Pdh

kW 5.5 5.2

= bivalent temperature

Pdh

kW 3.9 3.6

= operation limit temperature

Pdh

kW 3.9 3.6

Bivalent temperature

biv

°C -10 -10

Degradation coefficient

(2)

Cdh

— 1.0 1.0

Seasonal space heating energy efficiency under average conditions

% 134 137

Seasonal space heating energy efficiency under colder conditions

% 109 116

Seasonal space heating energy efficiency under warmer conditions

% 179 172

Declared coefficient of performance or primary energy ratio for part load at an indoor tempera ture of 20°C and outdoor temperature

= -7°C

COPd

- 1.64 1.89

= +2°C

COPd

- 3.46 3.53

= +7°C

COPd

- 4.96 4.74

= +12°C

COPd

- 7.90 7.08

= bivalent temperature

COPd

- 1.20 1.52

= operation limit temperature

COPd

- 1.20 1.52

Operation limit temperature for air-to-water heat pumps

TOL

°C -10 -10

Heating water operating limit temperature

WTOL

°C 55 60

Electrical power consumption

Off mode

OFF

kW 0.009 0.009

Thermostat-off mode

kW 0.049 0.049

Stand-by

kW 0.009 0.015

Crankcase heater mode

kW 0.000 0.055

3 Technical specifications

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Product name AWHP-2 iMPI

AWHP 4.5 MR

AWHP-2 iMPI AWHP 6 MR-3

Supplementary heater

Rated heat output

Psup

kW 0.0 0.0

Type of energy input Electricity Electricity

Other specifications

Capacity control Variable Variable

Sound power level, indoors - outdoors

dB 49 – 61 49 – 62

Annual energy consumption under average conditions

kWh 2353 2124

Annual energy consumption under colder con ditions

kWh 4483 3721

Annual energy consumption under warmer conditions

kWh 1249 1492

Rated air flow rate, outdoors for air-to-water heat pumps

—

m3/h

2100 2100

(1) The rated heat output

Prated

is equal to the design load for heating

Pdesignh

, and the rated heat output of a supplementary heater

Psup

is equal to the supplementary capacity for heating

sup(Tj)

(2) If

Cdh

is not determined by measurement, the default degradation coefficient is

Cdh

= 0.9.

Tab.10 Technical parameters for heat pump combination heaters (parameters declared for medium-temperature application)

Product name AWHP-2 iMPI

AWHP 8 MR-2

AWHP-2 iMPI AWHP 11 MR-2 AWHP 11 TR-2

AWHP-2 iMPI AWHP 16 MR-2 AWHP 16 TR-2

Air-to-water heat pump Yes Yes Yes

Water-to-water heat pump No No No

Brine-to-water heat pump No No No

Low-temperature heat pump No No No

Equipped with a supplementary heater Yes Yes Yes

Heat pump combination heater No No No

Rated heat output under average conditions

(1)

Prated

kW 6 6 9

Rated heat output under colder conditions

Prated

kW 6 4 7

Rated heat output under warmer conditions

Prated

kW 6 8 13

Declared capacity for heating for part load at an indoor temperature of 20°C and outdoor tempera ture

= -7°C

Pdh

kW 5.6 5.9 9.0

= +2°C

Pdh

kW 2.9 5.3 6.5

= +7°C

Pdh

kW 6.4 9.0 12.9

= +12°C

Pdh

kW 4.3 7.7 10.0

= bivalent temperature

Pdh

kW 5.2 6.3 8.8

= operation limit temperature

Pdh

kW 5.2 6.3 8.8

Bivalent temperature

biv

°C -10 -10 -10

Degradation coefficient

(2)

Cdh

— 1.0 1.0 1.0

3 Technical specifications

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Product name AWHP-2 iMPI

AWHP 8 MR-2

AWHP-2 iMPI AWHP 11 MR-2 AWHP 11 TR-2

AWHP-2 iMPI AWHP 16 MR-2 AWHP 16 TR-2

Seasonal space heating energy efficiency under average conditions

% 129 125 121

Seasonal space heating energy efficiency under colder conditions

% 119 113 113

Seasonal space heating energy efficiency under warmer conditions

% 169 167 161

Declared coefficient of performance or primary energy ratio for part load at an indoor tempera ture of 20°C and outdoor temperature

= -7°C

COPd

- 1.95 1.87 1.85

= +2°C

COPd

- 3.22 3.17 3.02

= +7°C

COPd

- 4.57 4.54 4.34

= +12°C

COPd

- 6.55 6.19 5.75

= bivalent temperature

COPd

- 1.70 1.20 1.35

= operation limit temperature

COPd

- 1.70 1.20 1.35

Operation limit temperature for air-to-water heat pumps

TOL

°C -10 -10 -10

Heating water operating limit temperature

WTOL

°C 60 60 60

Electrical power consumption

Off mode

OFF

kW 0.009 0.009 0.009

Thermostat-off mode

kW 0.049 0.023 0.035

Stand-by

kW 0.014 0.023 0.023

Crankcase heater mode

kW 0.055 0.055 0.055

Supplementary heater

Rated heat output

Psup

kW 0.0 0.0 0.0

Type of energy input Electricity Electricity Electricity

Other specifications

Capacity control Variable Variable Variable

Sound power level, indoors - outdoors

dB 49 – 67 48 – 69 48 – 70

Annual energy consumption under average conditions

kWh 3499 3999 5861

Annual energy consumption under colder con ditions

kWh 4621 3804 5684

Annual energy consumption under warmer conditions

kWh 1904 2580 4120

Rated air flow rate, outdoors for air-to-water heat pumps

—

m3/h

3300 6000 6000

(1) The rated heat output

Prated

is equal to the design load for heating

Pdesignh

, and the rated heat output of a supplementary heater

Psup

is equal to the supplementary capacity for heating

sup(Tj)

(2) If

Cdh

is not determined by measurement, the default degradation coefficient is

Cdh

= 0.9.

See The back cover for contact details.

3 Technical specifications

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3.2.4 Sensor specifications

Outside sensor specifications

Tab.11 Outside sensor

Temperature °C -20 -16 -12 -8 -4 0 4 8 12 16 20 24

Resistance Ohm 2392 2088 1811 1562 1342 1149 984 842 720 616 528 454

Flow sensor specifications

Tab.12 Flow sensor

Temperature in °C0 10 20 25 30 40 50 60 70 80 90

Resistance in Ω 32014 19691 12474 10000 8080 5372 3661 2535 1794 1290 941

PT1000 sensor specifications

Tab.13 PT1000 condenser flow and return sensors

Temperature °C -10 0 10 20 30 40 50 60 70 80 90 100

Resistance Ohm 961 1000 1039 1077 1117 1155 1194 1232 1271 1309 1347 1385

3.2.5 Circulating pump

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

0.20.

The circulating pump in the indoor module is a variable speed pump. It adapts its speed to the distribution network.

The speed of the circulating pump is controlled to reach a set point flow rate. This set point depends on the HP069 parameter. This value is auto matically configured according to the power of the outdoor unit when the codes CN1 and CN2 are configured when the device is first started.

1 Available pressure in metres of water column (mWc) 2

Water flow rate in cubic metres per hour (m3/h) 3 Available pressure for 4.5 to 8 kW outdoor units 4 Available pressure for the 11 and 16 kW outdoor units

Fig.3 Pressure available

MW-1001170-1

0 0.2 0.4 0 .6 0 .8 1 1.2 1 .4 1 .6 1.8 2 2.2

3 Technical specifications

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3.3 Dimensions and connections

3.3.1 AWHP 4.5 MR

Fig.4

MW-1000430-1

155

840

109

880

452

(417.5)

417.5

10 X 21

360

175

500

330

1 1/4" refrigerant fluid connection 2 1/2" refrigerant gas connection

3.3.2 AWHP 6 MR-3

Fig.5

23.2

1 2

99.5

164.5

492

193.5

35°

43°

360

330

32.5

300

404.5

22.3

630

320

8.5

809

500

310

154.5

MW-1000919-1

1 1/4" refrigerant fluid connection 2 1/2" refrigerant gas connection

3 Technical specifications

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3.3.3 AWHP 8 MR-2

Fig.6

943

950

53 28

417

175

330

370

443

447

175

65 42

(A)

(B)

MW-M001442-2

3/8" refrigerant fluid connection

5/8" refrigerant gas connection

3 Technical specifications

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3.3.4 AWHP 11 MR-2 – AWHP 16 MR-2 – AWHP 11 TR-2 – AWHP 16 TR-2

Fig.7

1350

950

53 28

417

175 600

330

370

443

447

175

65 42

(A)

(B)

MW-M001443-2

3/8" refrigerant fluid connection

5/8" refrigerant gas connection

3 Technical specifications

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3.3.5 iMPI with hydraulic back-up

Fig.8 iMPI/H

MW-3000532-01

679

621

400

218

3 4 5

402

56,5

1 Heating circuit flow G 1" 2 Heating circuit return G 1" 3 Back-up boiler flow G 1"

4 Back-up boiler return G 1" 5 5/8" refrigerant gas connection 6 3/8" refrigerant fluid connection

Fig.9 iMPI/HI

MW-3000533-01

213

63 65 63 65

4321

5 6

211

1 Heating circuit flow G 1" 2 Heating circuit return G 1" 3 Back-up boiler flow G 1"

4 Back-up boiler return G 1" 5 5/8" refrigerant gas connection 6 3/8" refrigerant fluid connection

3 Technical specifications

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3.3.6 iMPI with electrical back-up

Fig.10 iMPI/EM, iMPI/ET

MW-3000530-01

400

218

679

621

185

21 3 4

56,5

402

1 Heating circuit flow G 1" 2 Heating circuit return G 1"

3 5/8" refrigerant gas connection 4 3/8" refrigerant fluid connection

Fig.11 iMPI/EMI, iMPI/ETI

MW-3000531-01

211

213

1 2

1 Heating circuit flow G 1" 2 Heating circuit return G 1"

3 5/8" refrigerant gas connection 4 3/8" refrigerant fluid connection

3 Technical specifications

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Page 24

3.4 Electrical diagram

Fig.12

HPC-01

Sensor Liquid

Sensor Target

7679484

7622566

7685744

7679483

7619601

7679482

7679481

Low noise

Pump

3 Way Valve

DHW

Water

Sensors

7679489

2kW 230V~

6kW 400V 3N~

X12

X11

FUSE

EHC-04

X22

X27

X15

X26

X23

X30

X19

X24

X25

X10

X18

FUSE

X17

X16

X13

X21

SCB-04B

SW2

FUSE

L1 L2 L3 D3 N

Hydraulic

Backup

Electric

Backup

7621758

ON/OFF

EHC-04

7622059

Pump

3 Way Valve

Room Unit

T°C

Flow

Safety

Thermostat

Outdoor Unit

7681340

Pump

Harness

N° 7679488

Domestic Hot Water t° High

Domestic Hot Water t° Low

230V~

Outside temperature sensor

Room Unit

BL1 Multifunction

BL2 Multifunction

So+/So- Energy counter

Condensate sensor ON/OFF

9kW 400V 3N~

4kW 230V~

6kW 230V~

EHC-04

Pump

L1 L2 L3 D3 N

S2 / S3

7691321

MW-5000747-1

HMI

X28

X12

3 Technical specifications

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Tab.14 Wiring diagram legend

230 V ~ Power supply

3 WAY VALVE Three-way valve

3-WAY DHW VALVE 3-way domestic hot water valve

BL1 MULTIFUNCTION BL1 multifunction

BL2 MULTIFUNCTION BL2 multifunction

CONDENSATE SENSOR ON/OFF Underfloor heating

DOMESTIC HOT WATER T° HIGH Temperature at the top of the tank

DOMESTIC HOT WATER T° LOW Temperature at the bottom of the tank

EHC-04 Hybrid heat pump control system central unit PCB

ELECTRICAL BACKUP Electrical back-up

FUSE Fuse

HMI Control panel

HPC-01 HPC PCB (interface for the outdoor unit)

HYDRAULIC BACKUP Hydraulic back-up

LOW NOISE Silent option

OUTDOOR UNIT Outdoor unit

OUTDOOR TEMPERATURE SENSOR Outdoor temperature sensor

PUMP Circulating pump

ROOM UNIT Room thermostat

SAFETY THERMOSTAT Safety thermostat

SCB-04 PCB for controlling a second circuit (optional)

SENSOR LIQUID Exchanger refrigerant temperature sensor

SENSOR TARGET Water temperature sensor on the exchanger outlet

SO+/SO- ENERGY COUNTER SO+/SO- energy meter

T°C FLOW Second circuit heating flow temperature

WATER SENSORS Water sensors

3 Technical specifications

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Page 26

4 Description of the product

4.1 Operating principle

The outdoor unit produces heat or cold and transfers it to the indoor mod ule via the refrigerant in the plate exchanger. The indoor module is equip ped with a specific control system which is used to adjust the temperature of the heating water to the needs of the home.

4.2 Main components

1 Safety valve 2 Exchanger 3 Air vent 4 PCB box 5 Low-loss header 6 Pressure gauge 7 Display 8 Control panel

9 Circulating pump 10 Flow meter 11 8-litre expansion vessel

1 Safety valve

2 Exchanger

3 Air vent

4 Low-loss header with electrical back-up

5 PCB box

6 Pressure gauge

7 Display

8 Control panel

9 Circulating pump 10 Flow meter 11 8-litre expansion vessel

1 HPC–01 PCB: PCB for interface with the outdoor unit

2 EHC–04 central unit PCB: Control system for the heat pump and

the first heating circuit

Fig.13 iMPI/H

MW-3000535-01

Fig.14 iMPI/ET, iMPI/EM

MW-3000534-01

Fig.15 Position of the PCBs

MW-3000587-01

4 Description of the product

26 AWHP-2 iMPI 7685645 - v04 - 07032018

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4.3 Standard delivery

Delivery includes several packages:

One indoor module package One outdoor unit package

Contents of the indoor module package:

An indoor module An outside sensor An installation and service manual A user guide

4 Description of the product

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5 Before installation

5.1 Regulations governing installation

Warning The heat pump must be installed by a qualified installer in accord ance with local and national regulations.

Warning The components used for the connection to the cold water supply must comply with the prevailing standards and regulations in the country concerned.

5.2

Installation requirements

5.2.1

Treatment of the heating water

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

Caution Do not add any chemical products to the heating water without first consulting a water treatment specialist. For example: anti freeze, water softeners, products to increase or reduce the pH val ue, chemical additives and/or inhibitors. These may cause faults in the heat pump and damage the heat exchanger.

Important

Flush the installation with at least 3 times the volume of water contained in the 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.15 Heating water specifications

Specifications Unit

Total system output

≤ 70 kW

Hydrogen potential (pH) 7.5 - 9

Conductivity at 25°C μS/cm 10 to 500

Chlorides mg/litre ≤ 50

Other components mg/litre < 1

Total water hardness

°f 7 - 15

°dH 4 - 8.5

mmol/l 0.7 - 1.5

Important If water treatment proves necessary, Baxi recommends the follow ing manufacturers:

Cillit Climalife Fernox Permo Sentinel

5 Before installation

28 AWHP-2 iMPI 7685645 - v04 - 07032018

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5.2.2 Special precautions for the connection of the heating cir cuit

When making the connection, it is imperative that the standards and corre sponding local directives be respected.

Caution The hydraulic installation must be capable of handling a minimum flow rate at all times:

If radiators are connected directly to the heating circuit: install a differential valve between the indoor module and the heating cir cuit. Leave one heating circuit without a thermostatic valve and/or without a solenoid valve. Fit drainage valves between the indoor module and the heating circuit.

Install a filter on the heating return circuit.

5.3

Choice of the location

Decide on the ideal location, bearing in mind the space required by the heat pump and any legal directives. Install the heat pump's indoor module on a solid, stable structure capa ble of bearing the weight of the heat pump when full of water and fitted with its various accessories. Install the indoor module as close as possible to the draw-off points in order to minimise energy losses through the pipes. Install the heat pump's outdoor module on a solid, stable structure.

Caution The indoor module must be installed on frost-free premises.

5.3.1 Data plate

The data plates identify the product and provide the following important in formation.

The data plates must be accessible at all times.

Important Never remove or cover labels and data plates affixed to the appli ances. Labels and data plates must be legible throughout the en tire lifetime of the appliance. Damaged or illegible instructions and warning stickers must be re placed immediately.

5 Before installation

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Page 30

Data plate on the indoor module

Data plate on the outdoor unit

5.3.2

Overall space needed by the indoor module

Allow sufficient space around the heat pump's indoor module to ensure adequate access and facilitate maintenance.

Fig.16

MW-3000537-01

Fig.17

MW-M001832-1

Fig.18

MW-3000536-01

393

1200

400

500

670

100

5 Before installation

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5.3.3 Distance between modules

1 Outdoor unit 2 Indoor module

Allow a refrigeration connection of at least 2 m by making one or two horizontal loops in order to lessen these disruptions. If the refrigeration connection between the outdoor unit and the indoor module is less than 2 m, the following disruptions may occur:

Functional disruptions caused by a fluid overload

Noise pollution caused by the circulation of the refrigerant Respect the minimum curve radii of 100 to 150 mm. To ensure that the heat pump functions correctly, respect the minimum and maximum connection lengths between the indoor module and the outdoor unit.

Tab.16

Outdoor unit AWHP 4.5 MR AWHP 6 MR-3

AWHP 8 MR-2

AWHP 11 MR-2 AWHP 11 TR-2 AWHP 16 MR-2 AWHP 16 TR-2

A: Maximum/mini mum length

2 to 30 m 2 to 40 m 2 to 75 m 2 to 75 m 2 to 75 m 2 to 75 m

B: Maximum height difference

30 m 30 m 30 m 30 m 30 m 30 m

C: Maximum num ber of elbows

10 15 15 15 15 15

5.3.4 Installing the outdoor unit on the ground

When mounting on the ground, a concrete base must be installed, with no rigid connection to the building served to avoid the transmission of vibra tions.

The data plate must be accessible at all times.

1. Dig a run-off channel with a pebble bed.

2. Install a concrete base frame with a minimum height of 200 mm ca pable of bearing the weight of the outdoor unit.

3. Install the outdoor unit on the concrete base frame.

Installation in cold and snowy regions

Wind and snow may significantly impair the performance of the heat pump. Ensure that the following information is respected to install the out door unit correctly.

Always install the outdoor unit sufficiently high off the ground to allow correct condensates discharge. The width of the base must not exceed the width of the outdoor unit. Icing may lead to it breaking (refrigerant fluid leak). The height of the base frame must be higher than the height of the heaviest snowfalls. This measure helps to protect the exchanger from snow and prevent the formation of ice during the defrosting operation. For regions where heavy snowfalls occur, raise the above-ground pro tection by at least 200 mm compared with the average depth of the cov ering of snow.

Fig.19 Diagram of distances between mod

ules

MW-M00 1439-2

Fig.20

MW-M001452-3

200

5 Before installation

7685645 - v04 - 07032018 AWHP-2 iMPI 31

Page 32

Caution

If the outside temperatures become negative, take the necessa ry precautions to prevent the risk of freezing in the evacuation pipes. Prevent any risk of the condensates freezing in a passing-by zone.

Fig.21 Installation of a single outdoor unit or several outdoor units

MW-6000252-2

1 2 3/

1. Always install the outdoor unit as far as possible from the thorough fare as the condensates discharge may freeze, causing a potential hazard (sheet of black ice).

2. Place the outdoor units beside each other and not on top of each oth er to prevent the condensates from the lower unit to freeze.

Installing a noise abatement screen

In some cases, additional precautions are necessary owing to the fact, for example, of too short a distance between you and your neighbours.

Fig.22 Noise abatement screen

MW-C000373-1

Brrrrr....

Locate the noise abatement screen as close as possible to the noise source whilst allowing for the free circulation of air in the exchanger on the outdoor unit and maintenance work.

5 Before installation

32 AWHP-2 iMPI 7685645 - v04 - 07032018

Page 33

Fig.23 Distances of the appliance from the wall

MW-M001450-1

1000

ax. 500

Tab.17 Minimum dimensions in mm

AWHP 4.5 MR

AWHP 6 MR-3 AWHP 8 MR-2

AWHP 11 MR-2 AWHP 16 MR-2 AWHP 11 TR-2 AWHP 16 TR-2

A 100 150

B 500 1000

C 200 300

D 1000 1500

E 300 500

F 150 250

G 100 200

Position of the outdoor unit

Carefully choose the position of the outdoor unit in relation to neighbours as it is a source of noise.

Warning

Nothing must obstruct the free circulation of air around the out door unit (intake and outlet). Do not place the outdoor unit close to where people sleep. Do not place the unit opposite a wall with windows. Avoid placing it close to a terrace, etc. Choose a location away from prevailing winds.

Ensure sufficient above ground elevation (100 to 500 mm) to keep it above water.

Always use a base with a metal frame sufficiently high off the ground to allow correct condensates discharge. The width of the base must not ex ceed the width of the outdoor unit.

Always install the outdoor unit sufficiently high off the ground to allow cor rect condensates discharge.

Fig.24 Position of the outdoor unit

MW-M001448-2

5 Before installation

7685645 - v04 - 07032018 AWHP-2 iMPI 33

Page 34

Important The condensates discharge must be regularly cleaned in order to prevent any blockages.

5.4 Fitting the outdoor sensor

1. Choose the optimum location for the outdoor sensor.

2. Put the 2 plugs in place, delivered with the sensor (diameter 4 mm).

3. Secure the sensor using the screws provided (diameter 4 mm).

4. Connect the cable to the outdoor temperature sensor.

5.4.1 Recommended positions

Place the outside sensor in a position that covers the following character istics:

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.26

MW-8800N001-3

2 1

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

1/2 Z

Recommended position

Possible position

Inhabited height controlled by the sensor

Inhabited area controlled by the sensor

5.4.2 Positions to be avoided

Avoid placing the outside sensor in a position with the following character istics:

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

Fig.25 Mounting the outdoor sensor

MW-8800N003-6

5 Before installation

34 AWHP-2 iMPI 7685645 - v04 - 07032018

Page 35

Fig.27

MW-3000014-2

5 Before installation

7685645 - v04 - 07032018 AWHP-2 iMPI 35

Page 36

6 Connecting diagrams

6.1 Connection for the iMPI heat pump with electrical back-up with a domestic hot water tank and an underfloor heating circuit

Fig.28 iMPI with a domestic hot water tank, an underfloor heating circuit, a TXM connected thermostat and an electrical

back-up

MW-5000759-2

230V ou 400V 50Hz

BUS

230V 50Hz

1 Outdoor unit 2 Connected thermostat

TXM 3 Indoor module with electrical back-up 4 Direct underfloor heating connection kit 5 1/4” to 3/8” connection for AWHP 4.5 MR and AWHP

6 MR-3

6 Kit comprising heating/DHW reversing valve + do

mestic hot water sensor 7 Filter and isolation valve kit 8 Hydraulic connection kit for one domestic hot water

tank 9 Refrigeration connection kit 1/2" - 1/4"

6 Connecting diagrams

36 AWHP-2 iMPI 7685645 - v04 - 07032018

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6.1.1 Connect and configure the iMPI heat pump with electrical back-up with a domestic hot water tank and a direct cir cuit

Fig.29

MW-5000766-2

230V ou 400V

50Hz

230V 50Hz

X23

X12 X28

X25

EHC-04

1 Outdoor temperature sensor 2 Wiring kit for direct underfloor heating 3 TXM connected thermostat

4 Heating/domestic hot water reversal valve 5 Domestic hot water sensor 8 Outdoor unit bus connection

1. Connect the accessories and options to the EHC–04 PCB, respect ing the 230-400 V and 0-40 V cable feed-throughs.

2. On initial start-up, or after a reset of the factory parameters, set the CN1 and CN2 parameters according to the output of the outdoor unit.

3. Select the number corresponding to the installation type by pressing the or key.

Installation type No.

1 direct underfloor heating + 1 domestic hot water tank 06

Selecting the installation type enables automatic configuration of the parameters required for the control panel to operate correctly (gradient, maximum circuit temperature, etc.).

4. Confirm the selection by pressing the key.

The main parameters are set.

6 Connecting diagrams

7685645 - v04 - 07032018 AWHP-2 iMPI 37

Page 38

6.2 Connection for the iMPI heat pump with electrical back-up with 2 circuits and a buffer tank

Fig.30 iMPI with a direct circuit, a circuit with mixing valve, two TXM connected thermostats and an electrical back-up

MW-5000757-2

Ö& Ö& Ö& Ö&

230V 50Hz

BUS

1 Outdoor unit 2 Indoor module with electrical back-up 3 Thermostat connected to circuit A 4 Refrigeration connection 5/8" – 3/8", 10 m 5 Second circuit control system PCB kit 6 Filter and isolation valve kit

7 Collector for 2/3 circuits 8 Direct circuit kit with circulating pump

9 Thermostat connected to circuit B 10 Three-way valve circuit kit with circulating pump 11 Buffer tank

6 Connecting diagrams

38 AWHP-2 iMPI 7685645 - v04 - 07032018

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6.2.1 Connect and configure the iMPI heat pump with electrical back-up with 2 circuits and a buffer tank

Fig.31

MW-5000768-3

Ö& Ö& Ö& Ö&

5 6

230V 50Hz

X23

X15

X12 X28

SCB-04B

EHC-04

1 Outdoor temperature sensor 2 Safety thermostat for underfloor heating flow 3 Thermostat connected to circuit B 4 Flow sensor on circuit B 5 Pump supply on circuit B 6 Supply of the three-way valve on circuit B kit 7 Thermostat connected to circuit A

8 Outdoor unit bus connection 9 230 V power supply connection between the EHC–

04 and SCB-04 PCBs

10 BUS connection linking the EHC–04 and SCB-04

PCBs

11 Pump supply on circuit A

1. Connect the accessories and options to the EHC–04 PCB, respect ing the 230-400 V and 0-40 V cable feed-throughs.

2. Connect the accessories and options to the SCB-04 PCB, respect ing the 230-400 V and 0-40 V cable feed-throughs.

3. On initial start-up, or after a reset of the factory parameters, set the CN1 and CN2 parameters according to the output of the outdoor unit.

4. Select the number corresponding to the installation type by pressing the or key.

Installation type No.

1 direct heating circuit and 1 underfloor heating circuit with mixing valve

Selecting the installation type enables automatic configuration of the parameters required for the control panel to operate correctly (gradient, maximum circuit temperature, etc.).

5. In the Installer \ EHC–04 \ ADV menu, configure the HP086 pa rameter to 1.

6. Confirm the selection by pressing the key.

The main parameters are set.

6 Connecting diagrams

7685645 - v04 - 07032018 AWHP-2 iMPI 39

Page 40

6.3 Connection for the iMPI heat pump with electrical back-up with 2 circuits with a low-loss header

Fig.32 iMPI with a direct circuit, a circuit with mixing valve, two TXM connected thermostats and an electrical back-up

BUS

MW-5000760-2

230V 50Hz

1 Outdoor unit 2 Indoor module with electrical back-up 3 Refrigeration connection 5/8" – 3/8", 10 m 4 Second circuit control system PCB kit 5 Thermostat connected to circuit B

6 Thermostat connected to circuit A 7 Hydraulic kit with one direct circuit and one 3-way

valve circuit 8 Low-loss header 9 Filter and isolation valve kit

6 Connecting diagrams

40 AWHP-2 iMPI 7685645 - v04 - 07032018

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6.3.1 Connect and configure the iMPI heat pump with electrical back-up with a direct circuit, a circuit with mixing valve, a low-loss header and two TXM connected thermostats

Fig.33

MW-5000769-2

230V 50Hz

4 5 6

X23

X15

X12 X28

X26

SCB-04B

EHC-04

8 Outdoor unit bus connection 9 230 V power supply connection between the EHC–

04 and SCB-04 PCBs

10 BUS connection linking the EHC–04 and SCB-04

PCBs

11 Pump supply on circuit A

1. Connect the accessories and options to the EHC–04 PCB, respect ing the 230-400 V and 0-40 V cable feed-throughs.

2. Connect the accessories and options to the SCB-04 PCB, respect ing the 230-400 V and 0-40 V cable feed-throughs.

3. On initial start-up, or after a reset of the factory parameters, set the CN1 and CN2 parameters according to the output of the outdoor unit.

4. Select the number corresponding to the installation type by pressing the or key.

Installation type No.

1 direct heating circuit and 1 underfloor heating circuit with mixing valve

Selecting the installation type enables automatic configuration of the parameters required for the control panel to operate correctly (gradient, maximum circuit temperature, etc.).

5. In the Installer \ EHC–04 \ ADV menu, configure the HP086 pa rameter to 1.

6. Confirm the selection by pressing the key.

The main parameters are set.

6 Connecting diagrams

7685645 - v04 - 07032018 AWHP-2 iMPI 41

Page 42

6.4 Connection for the iMPI heat pump with hydraulic back-up with a direct circuit

Fig.34 iMPI with a direct circuit, a TXM connected thermostat and a hydraulic back-up

BUS

230V 50Hz

MW-5000758-2

230V 50Hz

1 Outdoor unit 2

Connected thermostat

3 Indoor module

Direct underfloor heating connection kit

Floor-standing gas/oil-fired boiler

Filter and isolation valve kit

6.4.1 Connect and configure the iMPI heat pump with hydraulic back-up with a direct circuit

Fig.35

X23 X4

X12

X28

4 2

230V 50Hz

MW-5000767-2

230V 50Hz

EHC-04

1 Outdoor temperature sensor 2 Hydraulic back-up pump 3 Thermostat

4 ON/OFF contact for the hydraulic back-up 5 Safety thermostat for underfloor heating flow 8 Outdoor unit bus connection

6 Connecting diagrams

42 AWHP-2 iMPI 7685645 - v04 - 07032018

Page 43

1. Connect the accessories and options to the EHC–04 PCB, respect ing the 230-400 V and 0-40 V cable feed-throughs.

2. On initial start-up, or after a reset of the factory parameters, set the CN1 and CN2 parameters according to the output of the outdoor unit.

3. Select the number corresponding to the installation type by pressing the or key.

Installation type No.

1 direct underfloor heating circuit 05

Selecting the installation type enables automatic configuration of the parameters required for the control panel to operate correctly (gradient, maximum circuit temperature, etc.).

4. Confirm the selection by pressing the key.

The main parameters are set.

5. If necessary, configure the hybrid operating mode for the hydraulic back-up

6. Setting up the back-up boiler

6 Connecting diagrams

7685645 - v04 - 07032018 AWHP-2 iMPI 43

Page 44

7 Installation

7.1 General

Caution Installation of the heat pump must be done by a qualified profes sional in accordance with prevailing local and national regulations.

7.2

Preparation

7.2.1 Mounting the indoor module

Fitting the mounting rail

1. Drill 2 holes with a diameter of 10 mm.

Important Extra holes are provided in case one or other of the standard lo cating holes prevents the correct location of the plug.

2. Put the plugs in place.

3. Fix the mounting rail to the wall using the hexagonal head screws provided for this purpose. Set the level using a spirit level.

Mounting the module on the wall

1. Position the indoor module above the mounting rail so that it rests snugly against it.

2. Gently lower the indoor module.

Fig.36 Drilling and mounting the rail

MW-2000075-1

340

ø10

250

Fig.37 Assembling the module

MW-3000538-2

7 Installation

44 AWHP-2 iMPI 7685645 - v04 - 07032018

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7.3 Hydraulic connections

7.3.1 Connecting the heating circuit

Heating installations must be able to guarantee a minimum flow rate at all times. This is defined by the parameter HP010. The nominal flow rate sought by the heat pump for optimum running is defined by the parameter HP069. If the flow rate is too low, the heat pump may shut itself down for its own protection; the heating, cooling and domestic hot water functions are then no longer guaranteed.

Important To ensure maintenance and accessibility to the various compo nents in the module, the hydraulic pipes have been purposely de signed with a degree of play. This play is necessary and control led. This pipe design guarantees the tightness of the product.

1. Make the hydraulic connections between the indoor module, the heating circuit and the boiler if there is hydraulic back-up

Warning To ensure optimum operation of the back-up boiler, the flow rate of the boiler must always be higher than that of the installation.

2. Install a 500 µm filter on the heating return of the indoor module (mandatory): Optional package .

Caution

Respect the mounting direction of the filter. Fit drainage valves between the indoor module and the heating circuit.

3. Install an automatic air vent at the highest point on the heating cir cuit.

4. Calculate the volume of water in the heating circuit and check the volume of the appropriate expansion vessel using DTU65–11. Use the maximum temperature of the circuit in heating mode or, failing that, a minimum of 55 °C. If the volume of the integrated 8-litre ex pansion vessel is not sufficient, add an external vessel to the heat ing circuit.

5. Connect the heating return for the indoor module.

6. Connect the heating flow for the indoor module.

Caution When connecting the heating circuit, hold the connection at the in door module end with a spanner to avoid piercing the pipe inside the appliance.

Caution In case of a direct circuit with radiators fitted with thermostatic valves, install a differential valve to ensure flow. In the case of standard valves, leave one radiator permanently open to allow wa ter to circulate and to ensure a minimum flow.

7 Installation

7685645 - v04 - 07032018 AWHP-2 iMPI 45

Page 46

7.3.2 Connecting the safety valve drain pipe

1. Remove the front panel by pulling firmly upwards.

2. Pass the outlet pipe from the safety valve through the opening provi ded for this purpose.

3. Connect the outlet pipe to the waste water discharge.

Caution The discharge pipe in the safety valve or unit must not be blocked.

7.4 Refrigeration connections

7.4.1 Installing the refrigeration link

1. Install the refrigerant connection pipes between the indoor module and the outdoor unit.

2. Ensure the minimum bending radii of 100 to 150 mm and the pipe characteristics are observed.

3. Cut the pipes with a pipe cutter and deburr; angle the opening in the pipe downwards to ensure no particles can get inside.

4. After completing the installation and all checks necessary before commissioning, add refrigerant fluid if the refrigeration connection pipes are more than 10 metres long.

Quantity of refrigerant fluid to be added

If the refrigeration connection pipes are more than 10 metres long, add more refrigerant fluid.

Caution Prevent oil traps. If the pipes are not connected immediately, plug them to prevent moisture from entering.

Tab.18 For AWHP 4.5 MR

Length of refrig eration pipe

7 m 10 m 15 m 20 m 30 m Yg/m

Charging

(1)

0 + 0.045 kg + 0.120 kg + 0.195 kg + 0.345 kg

(2)

Fig.38 Removing the front panel

MW-3000539-01

Fig.39 Orifice

MW-3000540-01

7 Installation

46 AWHP-2 iMPI 7685645 - v04 - 07032018

Page 47

Length of refrig eration pipe

7 m 10 m 15 m 20 m 30 m Yg/m

(1) The outdoor module is pre-charged with 1,300 kg of refrigerant fluid. (2) Calculation: Xg = Yg/m x (pipe length (m) – 7)

Tab.19

Length of refrigeration pipe AWHP 6 MR-3 AWHP 8 MR-2 AWHP 11 MR-2

AWHP 16 MR-2 AWHP 11 TR-2 AWHP 16 TR-2

11 to 20 m + 0.2 kg + 0.15 kg + 0.2 kg

21 to 30 m + 0.4 kg + 0.3 kg + 0.4 kg

31 to 40 m + 0.6 kg + 0.9 kg + 1 kg

41 to 50 m not permitted not permitted + 1.6 kg

51 to 60 m not permitted not permitted + 2.2 kg

61 to 75 m not permitted not permitted + 2.8 kg

7.4.2 Connecting the refrigeration link

Important Use a flat spanner to hold the hoses during the various opera tions.

1. Partially unscrew the 5/8" nut.

Fig.40 Holding with a flat spanner

MW-3000541-01

Fig.41 Partial loosening of the 5/8" nut

MW-3000542-01

7 Installation

7685645 - v04 - 07032018 AWHP-2 iMPI 47

Page 48

2. Push a screwdriver gently into the 5/8" nut. A release noise should be heard, which is proof that the exchanger is watertight.

3. Unscrew the 3/8" and 5/8" nuts.

4. Depending on each specific case:

Option Model Action

A Only for models

AWHP 4.5 MR AWHP 6 MR-3

Throw the nuts in the bin

B For other models Remove and discard

the 3/8" and 5/8" caps

5. Only for the , - AWHP 4.5 MR models: Mount the 1/4" adapter fit tings to the 3/8" and the 1/2" to the 5/8" (separate package ).

6. Slip the nuts onto the pipes.

7. Bead the pipes.

Fig.42 Release noise

MW-3000543-01

Pfffff...

Fig.43 Unscrewing the 3/8" and 5/8" nuts.

MW-3000598-01

Fig.44 Discarding the nuts or caps

MW-3000599-01

Fig.45 Mounting the fittings

MW-3000545-01

Fig.46 Fitting the nuts

MW-M002207-1

7 Installation

48 AWHP-2 iMPI 7685645 - v04 - 07032018

Page 49

8. Connect the pipes and tighten the nuts with a dynamometric span ner.

Notice Apply refrigerant oil to the beaded parts to facilitate tightening and improve the seal.

Option Model

A Only for models

AWHP 4.5 MR

B For other models

Tab.20 Torque load

External diameter of the pipe (mm/inch)

External diameter of the cone fitting (mm)

Torque load (N.m)

6.35 - 1/4 17 14 - 18

9.52 - 3/8 22 34 - 42

12.7 - 1/2 26 49 - 61

15.88 - 5/8 29 69 - 82

9. Remove the protective side panels from the outdoor unit.

10. Unscrew the nuts on the stop valves.

11. Slip the nuts onto the pipes.

12. Bead the pipes.

Fig.47 Connecting the pipes

MW-L000281-1

Fig.48 Removing the side panels

MW-M002209-1

Fig.49 Unscrewing the nuts on the stop

valves

MW-M002210-1

7 Installation

7685645 - v04 - 07032018 AWHP-2 iMPI 49

Page 50

13. Connect the pipes and tighten the nuts with a dynamometric span ner.

Notice Apply refrigerant oil to the beaded parts to facilitate tightening and improve the seal.

A Do not use a spanner on this part of the valve, danger of the refrig

erant leaking

B Recommended position of the spanners for tightening the nut

Tab.21 Torque load

External diameter of the pipe (mm/inch)

External diameter of the cone fitting (mm)

Torque load (N.m)

6.35 - 1/4 17 14 - 18

9.52 - 3/8 22 34 - 42

12.7 - 1/2 26 49 - 61

15.88 - 5/8 29 69 - 82

7.4.3 Test the tightness

1. Open the plugs in isolation valves A and B / C.

2. Check that isolation valves A and B / C are closed.

3. Remove the plug from the service connection on isolation valve A.

4. Connect the pressure gauge and the nitrogen bottle to the stop valve A then progressively build up the pressure in the refrigerant connection pipes and the indoor module to 35 bar, in 5 bar incre ments.

5. Check the tightness of the fittings using a leak detector spray. If leaks appear, repeat the steps in order and check the tightness once again.

6. Release the pressure and release the nitrogen.

Fig.50 Connecting the pipes

MW-M002211-1

Fig.51 Isolation valves

MW-M002297-2

35 bar

7 Installation

50 AWHP-2 iMPI 7685645 - v04 - 07032018

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7.4.4 Evacuation

1. Check that isolation valves A and B / C are closed.

2. Connect the vacuum gauge and the vacuum pump to the service connection on isolation valve A.

3. Produce a vacuum in the indoor module and the refrigeration con nection pipes.

4. Check the pressure using the recommendations table below:

Tab.22

Outside temperature °C ≥ 20 10 0 - 10

Pressure to be reached

Pa (bar)

1000 (0.01)

600 (0.00

250 (0.00

25)

200 (0.00

Evacuation time after reach ing the pressure

h 1 1 2 3

5. Close the valve between the vacuum gauge / vacuum pump and iso lation valve A.

6. After shutting off the vacuum pump, immediately open the valves.

7.4.5 Opening the valves

1. Remove the cap from the refrigerant fluid isolation valve, fluid end.

2. Open valve A with a hexagonal spanner by turning anti-clockwise until it stops.

3. Put the cap back in place.

4. Remove the cap from refrigerant gas isolation valve B or C.

5. Open the valve.

Valve B Open the valve with pliers by turning it a quar

ter turn anti-clockwise.

Valve C Open the valve with a hexagonal spanner by

turning anti-clockwise until it stops.

6. Put the cap back in place.

7. Disconnect the vacuum gauge and the vacuum pump.

8. Put the cap back in place on valve A.

9. Tighten all the caps with a torque wrench with a torque load of 20 to 25 N·m.

10. Check the tightness of the connections using a leak detector.

11. If the refrigeration pipes are more than 10 metres long, add the re quired quantity of refrigerant fluid.

For more information, see Installing the refrigeration link, page 46

7.5

Electrical connections

7.5.1 Recommendations

Warning

Only qualified professionals may carry out electrical connec tions, always with the power off. Earth the appliance before making any electrical connections.

Make the electrical connections on the appliance in accordance with the requirements of the prevailing standards,

Fig.52 Stop valves

MW-M002499-2

Fig.53 Isolation valve caps

MW-M002295-2

7 Installation

7685645 - v04 - 07032018 AWHP-2 iMPI 51

Page 52

Make the electrical connections on the appliance in accordance with the information given in the electrical schematics delivered with the appli ance, Make the electrical connections on the appliance in accordance with the recommendations of these instructions.

Important Earthing must comply with the prevailing installation standards.

Caution

The installation must be fitted with a main switch. Three phase models must always be fitted with neutral.

Caution Power the appliance via a circuit that includes an omnipolar switch with contact opening distance of 3 mm or more.

Single phase models: 230 V (+6%/-10%) 50 Hz Three-phase models: 400 V (+6%/-10%) 50 Hz

When making electrical connections to the mains, respect the following polarities.

Tab.23

Colour of the wire Polarity

Brown wire Live

Blue wire Neutral

Green/yellow wire Earth

Caution Secure the cable with the cable clamp provided. Be careful that you do not invert any of the wires.

7.5.2 Routing the cables

1 Cables for 230/400 V circuits and electrical back-up 2 0 - 40 V sensor cables

Fig.54

0-40V

MW-5000755-1

230-400V

7 Installation

52 AWHP-2 iMPI 7685645 - v04 - 07032018

Page 53

Caution Separate the sensor cables from the 230/400 V circuit cables.

7.5.3

Description of the connection terminal blocks

EHC–04 PCB terminal block

230 V - 50 Hz power supply

X4 Hydraulic version: Hydraulic back-up pump

Electrical version: Electrical back-up - stage 1

X5 Hydraulic version: Hydraulic back-up ON/OFF contact

Electrical version: Electrical back-up - stage 2

CAN bus to the SCB-04 PCB

Control panel display for the indoor module

Sensors

X10

Main circulating pump command signal

X12

Options

R-Bus: Room temperature sensor/thermostat on/off or modulat ing thermostat/OpenTherm BL1 IN / BL2 IN: Multi-function inputs So+/So- : Electric energy meter Condensation: condensation sensor

X15

230-V power supply for the SCB-04 PCB

X17

Not used

X18

Input/output for the HPC–01 PCB

X19

Silent Mode option

X22

Bus connection to the PCB managing the HPC–01 outdoor unit

X23

Outdoor unit bus connection

X24

Electricity supply to the HPC–01 PCB (management of the outdoor unit)

X25

Heating / Domestic hot water directional valve

X26

Pump - only if connecting a buffer tank

X27

Main circulating pump

X28

Outside sensor and domestic hot water tank temperature sensors

SCB-04 PCB terminal block

Power supply for the pump/Three-way valve/Safety valve input

PWM pump

230 V power supply

R-Bus: Room temperature sensor/thermostat on/off or modulat ing/OpenTherm thermostat Tout: Outdoor temperature sensor

Tflow: Flow sensor X8 BUS X9

BUS

7.5.4

Recommended cable cross section

The electrical characteristics of the mains power supply available must correspond to the values given on the data plate.

The cable will be carefully chosen according to the following information:

Maximum intensity of the outdoor unit. See table below. Distance of the appliance from the original power supply. Upstream protection. Neutral operating conditions.

Fig.55

Indoor module terminal block

MW-1001169-01

R-Bus BL1 IN BL2 IN So+ So-

Condensation

X15

X26

X2 X25

X13 X6 X21

X28

X24

X12

X19

X17

X16

X10

X23

X30

X18

X20

EHC-04

X7 X8

X27

X22

}

Fig.56

MW-3000557-03

X8 X9

FUSE

SW2

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Tab.24 Outdoor unit

Unit AWHP

4.5 MR

AWHP 6 MR-3

AWHP 8 MR-2

AWHP 11 MR-2

AWHP 11 TR-2

AWHP 16 MR-2

AWHP 16 TR-2

Power supply type Single

phase

Single phase

Three phase

Single phase

Three phase

Cross section of the power sup ply cable

mm² 3 x 2.5 3 x 2.5 3 x 4 3 x 6 5 x 2.5 3 x 10 5 x 2.5

Circuit breaker curve C A 20 16 25 32 16 40 16

Maximal amperage A 12 13 19 28 13 29 13

Tab.25 Indoor module

Cross section of the power supply cable mm² 3 x 1.5

Circuit breaker curve C A 10

BUS cable cross section

(1)

mm² 2 x 1.5

(1) Connection cable linking the outdoor unit to the indoor module

Tab.26 Connecting the electrical back-up

Unit Single phase Three phase

Cable cross section mm² 3 x 6 5 x 2.5

Circuit breaker curve C A 32 16

7.5.5 Accessing the PCBs and connection terminal block

1. Remove the front panel by pulling firmly upwards.

2. Remove the plate concealing the PCBs. Fig.57

MW-3000546-01

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3. Pivot the PCB support for routing the cables and connecting certain

options.

Connecting the cables to the PCBs

Use original connectors inserted into the various terminal blocks. The connectors are keyed. If there are no connectors on the terminal block to be used, use the con nector provided with the kit. Before feeding the cables into the cable feed-throughs, use the coloured labels provided with some accessories to mark each end of the cable with the same colour.

1. Insert and screw down the wires in the corresponding connector in

puts.

2. Insert the connector into the corresponding terminal block.

3. Feed the cable into the cable duct and adjust the length of the cable

accordingly. Lock it in position with a cable clamp or a traction ar rester device.

Caution Danger of electric shock: the length of the conductors between the traction arrester device and the terminal blocks must be such that the active conductors are put under tension before the earth con ductor.

Fig.58

MW-3000597-01

Fig.59 Mounting a connector

MW-6000148-2

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7.5.6 Electrically connecting the outdoor unit

Fig.60

MW-2000376-3

L1 L2 L3 N

S1 S2 S3

A B C

A Single-phase power supply for AWHP 4.5 MR B Single-phase power supply for AWHP 6 MR-3,

AWHP 8 MR-2, AWHP 11 MR-2 , AWHP 16 MR-2

C Three-phase power supply for AWHP 11 TR-2,

AWHP 16 TR-2

1 Power supply 2 Communication bus

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1. Remove the service panel.

D Service panel for AWHP 4.5 MR

E Service panel for AWHP 6 MR-3, AWHP 8 MR-2,

AWHP 11 MR-2 , AWHP 16 MR-2

F Service panel for AWHP 11 TR-2, AWHP 16 TR-2

2. This step is only valid for AWHP 4.5 MR: Remove the earth connec

tion present on the appliance and discard.

3. Check the cross-section of the cable used, as well as its protection

in the distribution board.

4. Step 4 is only valid for the AWHP 4.5 MR model. Secure the screw

and square washer provided on the stripped part of the earth wire

Danger The stripped part of the earth wire must be fitted underneath the washer against the base frame.

5. Connect the earth wire.

Danger The earth wire must be 10 mm longer than the N and L wires.

6. Connect the cables to the appropriate terminals.

7. Feed the cable into the cable duct and adjust the length of the cable

accordingly. Lock it in position with a cable clamp or a traction ar rester device.

Fig.61

MW-1000787-3

MW-1000787-2

230V~

NEW

230V~

L N

10mm

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7.5.7 Connecting the outdoor unit bus

1. Connect the outdoor unit bus to the X23 connector in the indoor

module's EHC–04 central unit PCB.

2. Position the SW8–3 switch (except with the AWHP 4.5 MR) for the

outdoor unit PCB to ON.

7.5.8 Connecting the outside sensor

1. Connect the outside sensor to the Tout input on the X28 connector

on the indoor module's EHC–04 central unit PCB.

Important Use a cable with a minimum cross-section of 2x0.35 mm2.

7.5.9 Connecting the hydraulic back-up.

1. Connect the back-up boiler pump (live / neutral / earth) to the X4

connector on the EHC–04 central unit PCB in the indoor module.

2. Connect the dry ON/OFF contact in the back-up boiler to the X5 con

nector in the EHC–04 central unit PCB in the indoor module.

Fig.62

MW-3000588-01

X23

312

SW8

Fig.63 Connecting the outside sensor

MW-3000513-01

X28

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7.5.10 Connecting the power supply for the electrical back-up

1. Choose the total output of the electrical back-up according to the

size of the home and its energy performance. There are 2 output stages, as shown in the following table:

Tab.27 Electrical back-up power supply

Back-up power supply Output of the electrical back-up

Stage 1 Stage 2 Maximum output (Stage 1 +

Stage 2)

Single phase 2 kW 0 kW 2 kW

2 kW 2 kW 4 kW

2 kW 4 kW 6 kW

Three phase 3 kW 3 kW 6 kW

3 kW 6 kW 9 kW

2. Feed the electrical back-up power supply cable into the cable duct

reserved for the 230/400 V circuit cables.

3. Single-phase power supply:

Insert the bridge according to the output of the electrical back-up, taking care to push it to the bottom of the connector. Connect the electrical back-up power supply (press the button to be able to insert the wire into the connector correctly and secure it). Insert the electrical back-up power cord into the cable way located in the bottom part of the junction box.

Important The bridge can be found in a bag inside the indoor module.

A Bridge B Button L1 Live N Neutral

Earth

Tab.28 Single-phase power supply

Maximum output Bridge to be installed

2 kW Do not install a bridge.

4 kW A

6 kW A

Fig.64 Single-phase power supply

2kW 230V~

L1 L2 L3 D3 N

4kW 230 V~

6kW 230V~

L1 L2 L3 D3 N

MW-5000774-1

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4. Three-phase power supply:

Important The bridge can be found in a bag inside the indoor module.

A Bridge B Button L1 Live 1 L2 Live 2 L3 Live 3 N Neutral

Earth

Tab.29 Three-phase power supply

Maximum output Bridge to be installed

6 kW Do not install a bridge.

9 kW A

Fig.65 Three-phase power supply

6kW 400V 3N~

9kW 400V 3N~

L1 L2 L3 D3 N

MW-5000775-1

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Connecting a boiler fitted with a control panel with no input TAM

Fig.66 Boiler fitted with a control panel with no input TAM

BUS

230V

MW-C003337-1

170

171

1 Domestic hot water load pump power supply CS Safety contact

1. Connect the electrical cables as per the connection diagram.

2. Set the following installer parameters on the boiler control panel:

Switch the boiler control system to 24h/24 comfort mode. Heating set point temperature = on the indoor module.

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Connecting a boiler fitted with a control panel with an input TAM

Fig.67 Boiler fitted with a control panel with an input TAM

BUS

MW-C003336-1

TAM

2 x 0,75 mm2

170

171

1 Domestic hot water load pump power supply TAM Room thermostat

7.5.11 Connecting a swimming pool

The swimming pool is not heated when the contact is open (factory set ting). Only the frost protection continues to run.

The electrical connection of a swimming pool is made to the optional SCB-04 PCB.

1. Connect the secondary pump from the swimming pool to the ter

minal block.

2. Connect the temperature sensor from the swimming pool to the

TFlowterminal block.

3. Connect the primary pump from the swimming pool to the termi

nal block.

4. Connect the swimming pool heating cut-off control to the R-Bus ter

minal block.

Fig.68 Connecting a swimming pool

MW-6000381-5

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7.6 Connecting the options

1. Connect the options according to the configuration of the installation

to the X12 or X19 connector on the EHC–04 PCB in the indoor mod ule. Tab.30 Connecting the options to X12

X12 connector Description

R-Bus terminals Connection of the TXM connected thermostat,

an on/off thermostat (ON/OFF) or a modulat ing thermostat (OT)

BL1 IN and BL2 IN Connecting the multifunction inputs

SO+/SO- input Connection of an energy meter

Condensation ter minals

Connection of a condensation sensor for un derfloor cooling.

Tab.31 Connecting the options to X19

Connector Description

X19 Silent Mode option

7.6.1 Connecting an on/off or modulating thermostat

The on/off or modulating thermostat is connected to the R-Bus terminals on the EHC–04 PCB or the optional SCB-04 PCB.

The PCBs are delivered with a bridge on the R-Bus terminals.

The R-Bus input can be configured to add the flexibility of using several types of on/off thermostat or OT.

Tab.32 Control parameter for the OT input on the R-Bus terminals

Parameter Description

CP640 Configuration of the contact direction of the OT input for heating mode.

CP690 Reversal of the direction of the logic in cooling mode compared to heating mode

Tab.33 Default settings for the CP640 and CP690 parameters

Value of the CP640 parame ter

Value of the CP690 parame ter

Heating if the OT contact is Cooling if the OT contact is

1 (Default value) 0 (Default value) closed closed

0 0 open open

1 1 closed open

0 1 open closed

7.6.2 Connecting a thermostat with heating/cooling connector

The AC thermostat is connected to the R-Bus and BL1 terminals of the EHC–04 PCB only, with a single heating circuit.

The PCBs are delivered with a bridge on the OT input.

Tab.34

Value of the CP640 parameter

Value of the AP098 parameter

The BL1 blocking input is

Operating mode for the heat pump

If the OT contact is open

If the OT contact is closed

1 (Default value) 1 (Default value) Open Cooling No cooling demand Cooling demand

Fig.69

MW-1001169-01

R-Bus BL1 IN BL2 IN So+ So-

Condensation

X15

X26

X2 X25

X13 X6 X21

X28

X24

X12

X19

X17

X16

X10

X23

X30

X18

X20

EHC-04

X7 X8

X27

X22

}

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Value of the CP640 parameter

Value of the AP098 parameter

The BL1 blocking input is

Operating mode for the heat pump

If the OT contact is open

If the OT contact is closed

1 (Default value) 1 (Default value) Closed Heating No heating demand Heating demand

1 0 Open Heating No heating demand Heating demand

1 0 Closed Cooling No cooling demand Cooling demand

0 1 Open Cooling Cooling demand No cooling demand

0 1 Closed Heating Heating demand No heating demand

0 0 Open Heating Heating demand No heating demand

0 0 Closed Cooling Cooling demand No cooling demand

1. Connect the "heating/cooling contact" thermostat input to the BL1 in

put on the EHC–04 PCB for the heat pump.

2. Connect the "On/Off" thermostat input to the OT input on the EHC–

04 PCB for the heat pump.

3. In the Installer/ EHC-04 menu, configure the BL1 input to "Heating/

Cooling", by setting the AP001 parameter to 11.

4. In the Installer/ EHC-04 menu, set the contact direction of the BL1

input with the AP098 parameter.

5. In the Installer/ CIRCA menu, set the contact direction of the OT in

put with the CP640 parameter.

7.7 Filling the installation

7.7.1 Filling the heating circuit

Before filling the heating system, flush it thoroughly.

Important

Do not use glycol. The use of glycol in the heating circuit invalidates the warranty.

1. Fill the installation until a pressure of 1.5 to 2 bars is reached. Read

the pressure on the mechanical pressure gauge.

Important The mechanical pressure gauge, situated under the top panel, close to the expansion vessel, is only used when filling the indoor unit with water. After the heat pump is switched on, the pressure will be shown on the display.

2. Check for any water leaks.

3. Completely vent the indoor module and the installation for optimum

running.

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.

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.

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8 Commissioning

8.1 General

The heat pump is commissioned:

When it is used for the first time; After a prolonged shut-down; After any event that may require complete reinstallation.

Commissioning of the heat pump allows the user to review the various set tings and checks to be made to start up the heat pump in complete safety.

8.2

Checklist before commissioning

8.2.1

Checking the heating circuit

1. Check the volume of the expansion vessel(s) is sufficient for the vol

ume of water in the heating installation.

2. Check that the heating circuit contains adequate water. If necessary,

top up with more water.

3. Check that the water connections are properly sealed.

4. Check that the heating circuit has been correctly purged.

5. Check that the filters are not clogged. Clean them if necessary.

6. Check that the valves and thermostatic radiator valves are open.

7. Check that all settings and safety devices are working correctly.

8.2.2 Checking the electrical connections

1. Check the mains electricity connection to the outdoor unit.

2. Check the mains electricity connection to the indoor module.

3. Indoor module with hydraulic back-up: check the connection be

tween the indoor module and the boiler.

4. Indoor module with electrical back-up: check the connection of the

electrical back-up.

5. Check the connection of the communication cable between the in

door module and the outdoor unit.

6. Check the conformity of the circuit breaker used for the indoor unit,

outdoor unit and the back-ups.

7. Check the positioning and connection of the sensors.

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

9. Check for the presence of the recommended circuit breaker (curve

C).

10. Tighten the terminal blocks.

11. Check the separation of the power and low voltage cables.

12. Check the connection of the underfloor heating thermostat (if used).

8.2.3 Checking the refrigeration circuit

1. Check the position of the outdoor unit, distance from the wall.

2. Check the tightness of the refrigerant connections.

3. Ensure that the evacuation pressure has been checked by filling.

4. Ensure that the evacuation time and the outside temperature have

been checking during evacuation.

8.3

Commissioning procedure

Caution Initial commissioning must be performed by a qualified professio nal.

1. Refit all the panels, fascias and covers on the indoor module and

outdoor unit.

8 Commissioning

7685645 - v04 - 07032018 AWHP-2 iMPI 65

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2. Arm the indoor module and outdoor unit circuit breakers on the elec

tric panel by setting them to the I position.

The heat pump is switched on. When powering up for the first time, the control panel displays the CNF menu which enables the type of outdoor unit present in the installation to be set.

3. If necessary, arm the electrical back-up circuit breaker on the electri

cal panel by setting it to the I position.

4. Set the CN1 and CN2 parameters according to the table below.

5. The heat pump begins the start-up cycle.

8.3.1 CNF menu

The CNF menu is used to configure the hybrid heat pump according to the type of back-up and the output of the outdoor unit installed.

Tab.35 Value of the CN1 and CN2 parameters with a hydraulic back-up

Output of the outdoor unit CN1 CN2

4.5 kW 18 3

6 kW 2 3

8 kW 3 3

11 kW 4 3

16 kW 5 3

Tab.36 Value of the CN1 and CN2 parameters with an electrical back-

Output of the outdoor unit CN1 CN2

4.5 kW 17 3

6 kW 7 3

8 kW 8 3

11 kW 9 3

16 kW 10 3

8.3.2

Start-up cycle

During the start-up cycle, the display shows various brief items of informa tion for checking.

These items of information are displayed one after the other.

1. Display of the control panel version

2. SCAN to search for the various options connected

Fig.70

MW-5000029-3

Fig.71

MW-5000055-3

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3. LOAD to recover information from the various control boards

4. Software version of the central unit PCB

5. Parameter version of the central unit PCB

6. The venting cycle is run automatically on start-up of the appliance, if an error occurs or during manual reset.

8.4 Using the installation wizard on the control panel

When the control panel is first powered up, the installation wizard launch es automatically.

1. Select the desired language by pressing the or key.

2. Confirm the selection by pressing the key.

Fig.72

MW-5000020-3

Fig.73

MW-5000021-4

Fig.74

MW-5000022-4

Fig.75

MW-5000058-4

Fig.76

MW-1000675-1

8 Commissioning

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3. Select the number corresponding to the installation type by pressing the or key. Selecting the installation type enables automatic

configuration of the parameters required for the control panel to op erate correctly (gradient, maximum circuit temperature, etc.). For a

configuration which differs from those proposed here, press the

key on the control panel and configure the parameters manually.

Installation type No.

One direct heating circuit 01

One direct heating circuit and one domestic hot water tank

One direct heating circuit and one underfloor heating circuit with mixing valve

One direct heating circuit and one domestic hot water tank and one underfloor heating circuit with mixing valve

One direct underfloor heating circuit 05

One direct underfloor heating circuit and one domestic hot water tank

4. Confirm the selection by pressing the key.

5. Set the heating curve.

The main parameters are set.

6. Based on the additional options connected, carry out the required settings.

8.5

Checking the minimum flow

Heating installations must be able to guarantee a minimum flow rate at all times. If the flow rate is too low, the heat pump may shut itself down for its own protection; the heating, cooling and domestic hot water functions are then no longer guaranteed.

1. Check the minimum flow rate as defined by the HP010 parameter.

See The flow rate value within the installation can be read using the AM056 parameter.

2. Set the differential pressure valves to guarantee an optimum flow rate in the installation when thermostatic valves are closed. The opti mum flow rate is defined by the HP069 parameter.

8.6

Final instructions

The various parameters for the heat pump are pre-set in the factory. These factory settings are suitable for the most common heating systems. For other systems and situations, the parameters can be modified.

1. Deactivate the heat pump's domestic hot water mode.

2. Simulate a heat demand to start up heating mode.

3. Check start-up of the outdoor unit and the back-ups connected.

4. Check the flow rate in the installation in comparison to the minimum flow rate.

5. Put the heat pump in shut-down/frost protection mode.

Fig.77

MW-1000676-1

Fig.78

MW-10001142-2

19°

+ +

19°

+ +

19°

+ + +

19°

+ +

8 Commissioning

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6. After about 10 minutes, vent the air in the heating system.

7. Check the hydraulic pressure. If necessary, top up the water level in the heating system.

8. Check for clogging on the filter on the heating return and the domes tic hot water return. If necessary, clean the filter.

9. Reactivate the heating and domestic hot water modes.

10. Explain how the system works to the users.

11. Hand over all manuals to the user.

8 Commissioning

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9 Operation

9.1 Use of the control panel

9.1.1 Control panel description

Description of the keys

: back to the previous level without saving the modifications

made

: manual reset

: accessing the heating parameters

: lowering the value

: accessing the domestic hot water parameters

: raising the value

: MODE display

: accessing the menu selected or confirming the value modifi

cation

Description of the display

Hydraulic back-up

Hydraulic back-up in demand

Electrical back-up

Stage 1 of the electrical back-up Stage 2 of the electrical back-up

Status of the Compressor

Steady symbol: compressing running

Operating modes

Steady symbol: heating function enabled Flashing symbol: heating production running Steady symbol: domestic hot water function enabled Flashing symbol: domestic hot water production running Heating or cooling function disabled

Domestic hot water function disabled

Fig.79

MW-1000043-5

1 2 3 4

Fig.80

MW-1000669-2

Fig.81

MW-1000665-2

Fig.82

MW-5000012-3

Fig.83

MW-1000083-5

9 Operation

70 AWHP-2 iMPI 7685645 - v04 - 07032018

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Hydraulic pressure in the system

The display alternates between the hydraulic pressure for the system and the measured flow temperature.

Steady symbol: displayed when indicating the system's hydraulic pressure value Flashing symbol: pressure in the system too low

XXX Pressure value in the system (in bar) or flow temperature (in °C)

Cooling mode

Steady symbol: cooling mode on Flashing symbol: cooling request pending

Menu display

Information menu: displays the measured values and the statuses of the appliance User menu: provides access to the User level setting parameters

Installer menu: provides access to the Installer level setting param eters Manual Forcing menu: the appliance runs at the set point dis played, the pumps operate and the three-way valves are not con trolled. Malfunction menu: the appliance has malfunctioned. This informa tion is signalled by an error code and a flashing display.

Sub-Menu COUNTERS TIME PROG sub-menu: Timer programming dedicated to heat ing and domestic hot water production

Sub-Menu CLOCK PCB selection menu: access to information on the additional PCBs connected

Display of PCB names

The name of the PCB for which the parameters are displayed is scrolling across the screen on 3 characters.

Central unit PCB EHC-04: direct circuit and domestic hot water

Additional PCB SCB-04 : 2nd circuit

Fig.84

MW-5000037-4

Fig.85

MW-5000015-3

Fig.86

Fig.87

MW-1000670-1

Fig.88

MW-1000754-2

...EHC / --04...

Fig.89

MW-1000687-1

...SCB / 04- / B...

9 Operation

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COUNTERS / TIME PROG / Sub-Menus CLOCK

COUNTERS sub-menu (CNT)

TIME PROG sub-menu: Timer programming dedicated to heat

ing and domestic hot water production (CIRC A, CIRC B, ECS)

Timer program for Monday Timer program for Tuesday Timer program for Wednesday Timer program for Thursday Timer program for Friday Timer program for Saturday Timer program for Sunday

CLOCK sub-menu (CLK)

Temperature sensors

Room temperature sensor connected:

fixed symbol for WINTER mode,

flashing symbol for SUMMER mode. Outside temperature sensor connected:

fixed symbol for WINTER mode,

flashing symbol for SUMMER mode.

Other Information

Test Menu: forced operation in heating and cooling mode Three-way valve connected Three-way valve closed Three-way valve open Pump running

9.1.2 Browsing in the menus

Press any key to turn on the backlight for the control panel screen.

If no key is pressed within 3 minutes, the control panel backlight will go out.

Press the 2 right-hand keys together to access the different menus: Tab.37 Menus available

Information menu

User menu

Installer menu The installer must enter the code 0012 using the and

keys.

Manual Forcing menu

Malfunction menu

COUNTERS sub-menu TIME PROG sub-menu CLOCK sub-menu

PCB selection menu

Important The icon is displayed only if an optional PCB has been installed.

Fig.90

MW-1000575-2

Fig.91

MW-5000014-4

Fig.92

MW-5000038-4

Fig.93

MW-2000369-1

9 Operation

72 AWHP-2 iMPI 7685645 - v04 - 07032018

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Important The different menus are only accessible when the icons flash.

Press the key to:

access the next menu, access the next sub-menu, access the next parameter, increase the value.

Press the key to:

access the previous menu, access the previous sub-menu, access the previous parameter decrease the value.

Press the confirmation key to confirm:

a menu, a sub-menu, a parameter, a value.

When the temperature is displayed, briefly pressing the back key h will return to the time display.

9.1.3 Description of the PCBs

When commissioning the heat pump, the PCB displayed in the main menu is EHC–04. The name of the PCB scrolls along the bottom of the screen: EHC–04.

Only the installer can access the parameters and settings for each PCB.

In order to control an installation that has an additional circuit, it will be necessary to install the SCB-04 PCB. The name of the PCB scrolls along the bottom of the screen: SCB-04.

Important Given that numerous settings can be made on the two PCBs, de pending on the circuit concerned, the name of the PCB will be rep

resented by in the rest of the manual.

9.2

Start-up

1. Switch on the outdoor unit and the indoor module simultaneously.

2. The heat pump begins its start-up cycle. If the start-up cycle runs normally, an automatic venting cycle is in itiated. Otherwise, an error message is displayed.

9.3

Shutdown

9.3.1 Switching off the heating

Important Heating mode can be managed via the TIME PROG sub-menu dedicated to timer programming.

Important If the heating function is shut off, then the cooling will also be shut off.

Fig.94

MW-1000576-1

Fig.95

MW-2000370-1

Fig.96

MW-2000371-1

Fig.97 PCB controlling the heat pump

MW-1000754-2

...EHC / --04...

Fig.98

Management of a second circuit

MW-1000687-1

...SCB / 04- / B...

9 Operation

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1. Go to stop mode by pressing the key.

2. Select the heating mode by pressing the key.

3. Confirm by pressing the key.

4. Select the heating shut-down pressing the key. The screen displays: .

The frost protection function continues to run. The heating and cooling have been shut down.

Important Press the key to restart the appliance: the screen will display .

Confirm by pressing the key.

6. Go back to the main display by pressing the h key.

Important The display disappears after a few seconds of inactivity.

9.3.2

Shutting down the cooling function

Important If the heating function is shut off, then the cooling will also be shut off.

1. Access the menu.

2. Confirm access by pressing the key.

3. Select CIRCA or CIRCB by pressing the or key.

4. Confirm the selection by pressing the key.

5. Select TP.C by pressing the or keys.

6. Confirm the selection by pressing the key.

7. Modify the timer program to stop cooling.

9.4

Frost Protection

If the temperature of the heating water in the heat pump falls too much, the integrated protection device switches itself on. This device functions as follows:

If the water temperature is lower than 5°C, the circulating pump starts up. If the water temperature is lower than 3°C, the back-up starts up. If the water temperature is higher than 10°C, the back-up shuts down and the circulating pump continues to run for a short time.

Fig.99

MW-5000027-4

Fig.100

MW-5000133-3

Fig.101

MW-5000134-3

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The radiator valves in rooms where there is a risk of frost must be fully open.

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10 Settings

10.1 Modifying the installer parameters

Caution Altering the factory settings may impair operation of the appliance.

The parameters in the Installer menu may only be changed by a qualified professional.

Go to the Installer menu.

2. Access the Installer menu by entering the code by press

ing the and keys.

3. Confirm access by pressing the key.

4. Select the desired sub-menu by pressing the or key.

5. Confirm the selection by pressing the key.

6. Select the required parameter by pressing the and keys to

scroll through the list of adjustable parameters.

7. Confirm the selection by pressing the key.

8. Modify the value of the parameter using the and keys.

9. Confirm the new value of the parameter by pressing the key.

10. Go back to the main display by pressing the h key.

10.2 Installer menu

Fig.104

MW-1000753-1

1 Sub-menu available 2 Name of the PCB or circuit

3 Setting parameters

Tab.38

List of Installer sub-menus

Important Only the parameters used by the device are described in this manual.

Sub-menu Description Name of the PCB or cir

cuit

CIRCA Main heating circuit

CIRCB Additional heating circuit B

ECS Domestic hot water circuit

EHC-04 EHC–04 central unit PCB

SCB04-B Additional PCB for circuit B

Fig.102

MW-5000057-1

Fig.103

MW-5000024-5

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10.2.1 Installer \CIRCA and CIRCB menu

CP : Circuits Parameters = Heating circuit parameters

Tab.39

Parameter Description Factory setting

CIRCA

Factory setting

CIRCB

CP000 Maximum Flow Temperature setpoint zone

For circuit A: Can be set from 7 °C to 100 °C

Electrical back-up: 90 Hydraulic back-up: 75

CP020 Type of circuit A, connected to the EHC–04 PCB:

0 = heating circuit deactivated 1 = radiators. Cooling not possible. 2 = underfloor heating. Cooling possible. 3 = not available 4 = not used 5 = convection fan. Cooling possible.

Type of circuit B, connected to the SCB-04 PCB:

0 = heating circuit deactivated 1 = radiators. Cooling not possible. 2 = underfloor heating with mixing valve. Cooling possible. 3 =Swimming pool 4 = not used 5 = convection fan. Cooling possible. 6 and above = not used

2 2

CP030 Bandwith of mixing valve zone where modulation takes place.

Can be set from 4 °C to 16 °C

not available 12

CP040 Pump post runtime of the zone

Can be set from 0 Min to 20 Min

3 4

CP050 Can be set from 0 °C to 16 °C not available 4

CP060 Wished room zone temperature on holiday period

Can be set from 5 °C to 20 °C

6 6

CP070 Max RoomTemperature limit of the circuit in reduced mode,

that allows switching to comfort mode Can be set from 5 °C to 30 °C

16 16

CP210 Comfort footpoint of the temperature of heat curve of the circuit

can be set from 16 to 90 °C set to 15 = the curve base temperature is set automatically and is the same as the room set point temperature

15 15

CP220 Reduced footpoint of the temperature of heat curve of the

circuit

can be set from 6 to 90 °C set to 15 = the curve base temperature is set automatically and is the same as the room set point temperature

15 15

CP230 Heating curve temperature gradient of the zone

Can be set from 0 to 4

0.7 0.7

CP240 Adjustment of the influence of the zone room unit

Can be set from 0 to 10

3 3

CP270 Mixing flow temperature setpoint cooling of the zone

Can be set from 11 °C to 23 °C

18 18

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Parameter Description Factory setting

CIRCA

Factory setting

CIRCB

CP340 Type of Reduced Night Mode, stop or maintain heating of

circuit

0 = Stop heat demand 1 = Continue heat demand

1 0

CP470 Setting of the screed drying program of the zone

0 = deactivated Can be set from 1 to 30 days

0 0

CP480 Setting of the start temperature of the screed drying programm

of the zone Can be set from 20 °C to 50 °C

20 20

CP490 Setting of the stop temperature of the screed drying programm

of the zone Can be set from 20 to 50 °C

20 20

CP500 Enable/Disable Flow temperature sensor of the zone

0 =Off 1 =On Do not modify this setting

not available 0

CP640 Opentherm Logic level contact of the zone

0 = contact open for heating demand 1 = contact closed for heating demand

1 1

CP650 Desired reduced room temperature setpoint in cooling mode

per zone Can be set from 20 °C to 30 °C

29 29

CP690 Reversed Opentherm contact in cooling mode for heat demand

per zone

0 =No 1 =Yes

0 0

CP750 Maximal Zone Preheat time

Can be set from 0 Min to 240 Min

0 0

CP780 Selection of the control strategy for the zone

0 =Extra Slow 1 =Slowest 2 =Slower 3 =Normal 4 =Faster 5 =Fastest

0 0

ADV Advanced parametersADV CIRCA sub-menu:

not available

CIRCB sub-menu: available

10.2.2

Installer \CIRCA and CIRCB\ADV menu

Tab.40

ADV Description of the ADV advanced parameters Factory setting

CIRCB

CP330 The time needed by the valve to be fully opened

Can be set from 0 Sec to 240 Sec Do not modify this setting

CP520 Power setpoint per zone

Can be set from 0 % to 100 % Do not modify this setting

100

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ADV Description of the ADV advanced parameters Factory setting

CIRCB

CP530 Pulse Width Modulation pump speed per zone

Can be set from 0 % to 100 % Do not modify this setting

CP730 Selection of heat up speed of the zone

0 =Extra Slow 1 =Slowest 2 =Slower 3 =Normal 4 =Faster 5 =Fastest

Do not modify this setting

CP740 Selection of Cool down speed of the zone

0 =Slowest 1 =Slower 2 =Normal 3 =Faster 4 =Fastest

Do not modify this setting

CP770 The zone is after a Buffer tank

0 =No 1 =Yes

Do not modify this setting

10.2.3 Installer \DHW menu

A domestic hot water sensor must be connected to the EHC–04 board to display these parameters.

DP : Direct Hot Water Parameters = Domestic hot water tank parameters

Tab.41

Parameter Description Factory setting

DP051 Domestic Hot Water ECO or CONFORT setting

0 =ECO (Only HP) 1 =Comfort (HP+Boiler)

DP120 Hysteresis temperature relative to the DHW temperature setpoint

Can be set from 0 °C to 40 °C

DP130 Offset added on the DHW temperature to obtain the dynamic generator setpoint. 20

DP213 Post run time of the DHW pump/3 way valve after DHW production

Can be set from 0 Min to 99 Min

ADV Advanced parametersADV

10.2.4 Installer \DHW\ADV menu

A domestic hot water sensor must be connected to the EHC–04 board to display these parameters.

DP : Direct Hot Water Parameters = Domestic hot water tank parameters

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Tab.42

List of ADV parameters in the sub-menu of the Installer menu

ADV Description of the ADV advanced parameters Factory setting

DP004 Legionella mode protection calorifier

0 =Disabled 1 = on: the domestic hot water tank is superheated to 65 °C for 20 minutes once a week. 2 = automatic: the domestic hot water tank is remotely controlled.

DP046 Maximum domestic hot water temperature

Can be set from 10 °C to 70 °C

DP047 Maximum time allowed to produce Domestic Hot Water

Can be set from 1 to 10 hours

3 (4.5 kW - 6 kW - 8 kW) 2 (11 kW - 16 kW)

DP048 Minimum heating time before Domestic Hot Water production

Can be set from 0 to 10 hours

DP055 Enable/disable the TAS protection of the DHW tankCan be set from 0 to 1 0

DP090 Delay for starting the next generator (backup stage) in DHW mode

Can be set from 0 Min to 120 Min

DP100 Delay for stopping the next generator (backup stage) in DHW mode

Can be set from 0 Min to 120 Min

DP110 Delay for starting the next generator (backup stage) in DHW mode

Can be set from 0 Min to 255 Min

DP150 Enable DHW Thermostat function

0 =Off 1 =On

DP160 Setpoint for DHW anti legionella

Can be set from 60 °C to 90 °C Do not modify this setting

10.2.5 Installer \EHC–04 and SCB-04 menu

AP : Appliance Parameters = Appliance parameters

Tab.43

Parameter Description Factory setting

EHC–04

Factory setting

SCB-04

AP001 Blocking input setting (1: Full blocking, 2: Partial blocking, 3: User

reset locking) BL1:

1 = Full blocking of the installation – frost protection not guaran teed 2 = Partial blocking of the installation – frost protection active 3 =User reset locking 4 =Backup Relieved 5 =Heat Pump Relieved 6 =HP & backup relieved 7 =High, Low Tariff 8 =Photovoltaic HP Only 9 =PV HP And backup 10 =Smart Grid ready 11= heating/cooling

2 not available

AP028 Defines the type of cooling used.

0 =Off 1 =Active cooling on 2 = Free cooling on, not used

0 1

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Parameter Description Factory setting

EHC–04

Factory setting

SCB-04

AP063 Maximum flow temperature setpoint for burning at central heating

Can be set from 20 °C to 90 °C

Hydraulic backup: 90 Electrical backup: 75

not available

AP075 Outdoor temperature neutral band between heating and cooling. The

generator is stopped. Can be set from 0 to 10 °C

4 4

AP079 Inertia of the building used for heat up speed

Can be set from 0 to 10

0 = 10 hours for a building with low thermal inertia,

= 22 hours for a building with normal thermal inertia,

10 = 50 hours for a building with high thermal inertia.

Modification of the factory setting is only useful in exceptional cases.

3 3

AP080 Outside temperature below which the antifreeze protection is

activated:

can be set from -29 to 20 °C set to -30 °C = function deactivated

3 3

AP091 Outdoor sensor type

0 =Auto

0 -

AP098 Blocking input 1 contact direction configuration

0 = input active on Open contact 1 = input active on Closed contact

1 not available

AP099 Blocking input 2 contact direction configuration

0 = input active on Open contact 1 = input active on Closed contact

1 not available

AP100 Blocking input 2 setting

2 not available

HP : Heat-pump Parameters = Heat pump parameters

Tab.44

Parameter Description Factory setting

EHC–04

HP000 Outside bivalence temperature

Bivalence temperature above which only heat pump is allowed

HP054 COP threshold above which heat pump is authorized to operate when hybrid

mode is primary energy Can be set from 1 to 5 °C Value accepted when HP061=2

2.5

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Parameter Description Factory setting

EHC–04

HP061 Hybrid mode management:

0 =No Hybrid 1 =Hybrid Cost 2 =Primary Energy 3 =Hybrid CO2

HP065 Electrical CO2 emission in heating mode

Can be set from 0 to 100 (x0.01) Value accepted when HP061=3

HP066 Electrical CO2 emission in DHW mode

Can be set from 0 to 100 (x0.01) Value accepted when HP061=3

HP067 Gas or Oil CO2 emission

Can be set from 0 to 100 (x0.01) Value accepted when HP061=3

HP068 Boiler in appliance efficiency

Can be set from 0 to 100%

100

PP015 Central heating pump post run time

Post-circulation of the heating pump:

can be set from 0 to 98 minutes set to 99 = runs continuously

AD Auto detect available

CNF Reset factory parameters See the data plate.

ADV ADV advanced parameters not available

10.2.6 Installer \EHC–04 and SCB-04\ADV menu

AP : Appliance Parameters = Appliance parameters

ADV Description of the ADV advanced parameters Factory setting

EHC–04

Factory setting

SCB-04

AP002 Enable manual heat demand function

In this mode, the temperature set point used will be that for the AP026 parameter.

AP006 Appliance will report low water pressure below this value

Can be set from 0 bar to 6 bar

0.3 not available

AP009 Burning hours before raising a service notification

Can be set from 0 to 65534 hours

17400 not available

AP010 Service:

0 =None 1 =Custom notification 2 =ABC notification

0 not available

AP011 Hours powered to raise a service notification

Can be set from 0 to 65534 hours

17400 not available

AP026 Flow temperature setpoint for manual heat demand

Can be set from 7 to 80°C Set point used when manual mode is active (AP002 = 1)

40 not available

AP058 Warning message indicating that pressure is low

Can be set from 0 bar to 2 bar

0.8 not available

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ADV Description of the ADV advanced parameters Factory setting

EHC–04

Factory setting

SCB-04

AP072 Type of the humidity sensor used

0 =No 1 =OnOff 2 =0-10V sensor

AP101 Disable (0) or Enable (1) the de-aeration cycle

0 =Off 1 =Auto 2 =On

1 not available

AP102 Configuration of the boiler pump as zone pump or system pump

(feed lowloss header)

0 =No 1 =Yes

1 not available

HP : Heat-pump Parameters = Heat pump parameters

Tab.45

ADV parameter Description of the ADV advanced parameters Factory setting

EHC–04

HP002 Maximum flow temperature of the heat pump without backups

Can be set from 20 °C to 90 °C

65 (6 kW - 8 kW - 11 kW - 16 kW) 60 (4.5 kW)

HP003 Minimum flow temperature allowed in cooling mode

Can be set from 5 °C to 30 °C

HP010 Minimum flow rate in heating mode

Can be set from 0 l/m to 90 l/m

5 for 4.5 kW 5 for 6 kW 8 for 8 kW 12 for 11 kW 12 for 16 kW

HP011 Minimum flow rate that triggers a warning message indicating that flow is going

low Can be set from 0 l/m to 95 l/m

7 for 4.5 kW 7 for 6 kW 9 for 8 kW 14 for 11 kW 14 for 16 kW

HP030 Delay time for starting the next generator (backup stage) in central heating mode

Can be set from 0 Min to 600 Min

HP031 Delay time for stopping the next generator (backup stage) in central heating

mode Can be set from 0 Min to 600 Min 0 = auto mode: use parameters HP047 to HP050

HP033 Pulse valency of the external electrical meter (Wh)

Can be set from 0 Wh to 1000 Wh

HP034 Capacity first electrical backup stage

Can be set from 0 kW to 10 kW Value accepted when HP031 = 0

HP035 Capacity second electrical backup stage

Can be set from 0 kW to 10 kW Value accepted when HP031 = 0

HP036 Rate of glycol added in the evaporator circuit

0 =0% glycol 1 =20% glycol 2 =30% glycol 3 =40% glycol

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ADV parameter Description of the ADV advanced parameters Factory setting

EHC–04

HP047 Maximum time at maximum outside temperature to start back up in CH mode

when dynamic timer selected Can be set from 1 to 10 minutes Value accepted when HP031 = 0

HP048 Maximum time at maximum outside temperature to start back up in CH mode

when dynamic timer selected Can be set from 0 to 60 minutes Value accepted when HP031 = 0

HP049 Minimum outside temperature for dynamic timer when dynamic mode is selected

Can be set from -30 to 0 °C Value accepted when HP031 = 0

-10

HP050 Maximum outside temperature for dynamic timer when dynamic mode is

selected Can be set from -30 to +20 °C Value accepted when HP031 = 0

HP051 Minimum operating temperature for the heat pump

Can be set from -20 to +5 °C

-15 °C for 4.5 kW

-15 °C for 6 kW

-20 °C for 8 kW

-20 °C for 11 kW

-20 °C for 16 kW

HP058 Enabling Heat pump Silent mode

0 =No 1 =Yes

Requires a specific option. Not available for AWHP 4.5 MR.

HP069 Heat Pump flow speed set-point depending on Heat Pump Power configuration

Can be set from 0 to 100 l/min

12 for 4.5 kW 17 for 6 kW 23 for 8 kW 32 for 11 kW 46 for 16 kW

HP079 Maximum offset applied on the dynamic cooling setpoint when a 0-10V humidity

sensor is used Can be set from 0 to 15°C

HP086 Activation of hydraulic management mode for the configuration with a low-loss

header, or for a buffer tank connected as a low-loss header

0 =No 1 =Yes

HP087 Buffer tank hysteresis to start and stop heating

Can be set from 0 to 30 °C

HP091 Offset temperature of heating setpoint when photovoltaic function is activated

Can be set from 0 to 30 °C

HP092 Offset temperature of DHW setpoint when photovoltaic function is activated

Can be set from 0 to 30 °C

HP094 Start time of the low noise when option activated

Can be set from 00:00 to 23:59 Value accepted when HP058 = 1

22:00

HP095 Stop time of the low noise when option activated

Can be set from 00:00 to 23:59. Value accepted when HP058 = 1

06:00

HP108 Activation time delays for the back-ups between stage 1 and stage 2 (electrical

back-up) in central heating mode

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ADV parameter Description of the ADV advanced parameters Factory setting

EHC–04

PP016 Maximum central heating pump speed (%)

Maximum pump speed in heating mode Can be set from 20 to 100%

100%

PP018 Minimum central heating pump speed (%)

Minimum pump speed in heating mode Can be set from 20 to 100%

30%

AD Auto detect available

CNF Reset factory parameters See the data plate

ADV ADV advanced parameters not available

10.3

COUNTERS /TIME PROG / CLOCK menus

Tab.47

List of sub-menus

Sub-menu Description

CNT COUNTERS

CIRCA Timer programming for the main heating circuit

CIRCB Timer programming for the additional heating circuit B

DHW Timer programming for the domestic hot water circuit

CLK Setting the clock and the date

10.3.1 COUNTERS, TIME PROG, CLOCK \CNT menus

Tab.48 Choosing the menu

Counters Selection

Circuit A counters Choose the EHC-04 menu

Circuit B counters Choose the SCB04-B menu

Counters connected to the opera tion of the heat pump

Choose the EHC-04 menu

Tab.49 Available counters

Parameter Description Unit EHC-04 SCB04-B

AC001 Number of hours that the appliance has been on

mains power

hours X X

AC005 Energy consumed for central heating kWh X

AC006 Energy consumed for domestic hot water Wh X

AC007 Energy consumed for cooling Wh X

AC008 Energy delivered for central heating kWh X

AC009 Energy delivered for domestic hot water kWh X

AC010 Energy delivered for cooling kWh X

AC013 Seasonal COP X

AC026 Counter that shows the number of pump running

hours

hours X

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Parameter Description Unit EHC-04 SCB04-B

AC027 Counter that shows the number of pump starts - X

AC028 Total working time of the first stage of backup hours X

AC029 Total working time of the second stage of backup hours X

AC030 Total startings of the first stage of backup - X

AC031 Total startings of the second stage of backup - X

DC002 Numbers of Domestic Hot Water diverting valve

cycles

- X

DC003 Number of hours during which the diverting valve

is in DHW position

hours X

DC004 Number of compressor start-ups during domestic

hot water production

DC005 Number of compressor start-ups X

PC002 Number of compressor start-ups - - X

PC003 Number of compressor operating hours hours X

CODE Enter the installer code to access the following pa

rameters.

AC002 Number of hours that the appliance has been

producing energy since last service

hours X

AC003 Number of hours since the previous servicing of

the appliance

hours X

AC004 Number of generator startings since the previous

servicing.

AC013 Seasonal coefficient of performance X

SERVICE Resetting the maintenance service

CLR: the AC002, AC003, and AC004 counters are reset to zero.

10.3.2 COUNTERS, TIME PROG, CLOCK \CIRCA, CIRCB and DHW menus

Tab.50

Menu Description

CIRCA TP.H: Timer programming for heating

06:00 - 23:00 ON 23:00 - 06:00 OFF TP.C: Timer programming for cooling 14:00 - 23:00 ON 23:00 - 14:00 OFF

CIRCB Timer programming for heating

06:00 - 23:00 ON 23:00 - 06:00 OFF

DHW Timer programming for domestic hot water

06:00 - 23:00 ON 23:00 - 06:00 OFF

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10.3.3 COUNTERS, TIME PROG, CLOCK \CLK menus

Tab.51

CLK parameter Unit HMI

HOURS Can be set from 0 to 23 available

MINUTE Can be set from 0 to 59 available

DATE Can be set from 1 to 31 available

MONTH Can be set from 1 to 12 available

YEAR Can be set from 2000 to 2100 available

10.4

Description of the parameters

10.4.1 Running the back-up in heating mode

Back-up start-up conditions

Important

If the AP001 and AP100 parameters are configured to 4, 6 or 8 and the corresponding BL input is active, the back-ups will be deactivated and will not start up. If the HP030 and HP031 parameters are set to 0, the activation and deactivation time delays on the back-up are set according to the outside temperature.

In heating mode, the back-up is managed by the following parameters:

Tab.52 Parameter for heating production

Parameter Description

AP016 Enable central heating heat demand processing

HP030 Delay time for starting the next generator (backup stage) in central heating mode(t1).

HP031 Delay time for stopping the next generator (backup stage) in central heating mode(t2).

AP001 Blocking input setting (1: Full blocking, 2: Partial blocking, 3: User reset locking)(BL1).

AP100 Blocking input 2 setting.

The time delay curve for tripping the back-up is defined by the parameters HP047, HP048, HP049 and HP050.

1 HP047: Minimum duration of the time delay for tripping the back-up 2 HP048 : Maximum duration of the time delay for tripping the back-

3 HP049: Minimum outside temperature for the time delay for trip

ping the back-up

4 HP050: Maximum outside temperature for the time delay for trip

ping the back-up

T Time (minutes)

t Outside temperature (°C)

Back-up operation if an error occurs on the outdoor unit

If an error occurs on the outdoor unit during a system heating demand, the boiler or electrical back-up starts up immediately to guarantee heating comfort.

Fig.105 Trip curve for boiler back-up

MW-6000377-2

0 -10 -20

1015°

10’

20’

30’

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Back-up operation if defrosting the outdoor unit

When the outdoor unit is undergoing defrosting, the control unit ensures full protection of the system by starting up the back-ups if necessary.

Additional protection is provided if the water temperature falls too sharply. In this case, the outdoor unit is shut down.

Operating principle when the outside temperature falls below the operating threshold of the outdoor unit

If the outside temperature is below the minimum operating temperature of the outdoor unit as defined by the HP051 parameter, the outdoor unit is not permitted to operate.

If the system has a demand pending, the back-up or electric boiler starts up immediately to guarantee heating comfort.

10.4.2 Setting the switch between heating and production of do mestic hot water

The system does not allow the simultaneous production of heating and do mestic hot water.

The switch logic between domestic hot water mode and heating mode op erates as follows:

Fig.106

Domestic hot water temperature curve

MW-5000541-1

1 2 3 4 5

A AB BB

DP048 Minimum heating time before Domestic Hot Water production

DP047 Maximum time allowed to produce Domestic Hot Water

DP070 DHW comfort temperature setpoint or DP080 DHW reduced temperature setpoint

Temperature

DM006 Domestic hot water temperature

Time

DP120 Hysteresis temperature relative to the DHW temperature setpoint

Live Operating description

1 Domestic hot water production only. When switching on, if domestic hot water production is enabled and

acceleration of domestic hot water production is not required (DP051 set to 0), a domestic hot water pro duction cycle starts for a maximum duration that can be adjusted and set by the DP047 parameter. In the event of insufficient heating comfort, the heat pump is running too long in domestic hot water mode: reduce the maximum duration of domestic hot water production.

2 Heating only. Production of domestic hot water is off. Even if the domestic hot water set point is not

reached, a minimum heating period is forced. This period can be adjusted and defined with the DP048 parameter. After the heating period, tank loading is again enabled.

3 Domestic hot water production only. When the domestic hot water set point is reached, a period in heat

ing mode begins.

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Live Operating description

4 Heating only. When the DP120 differential is reached, domestic hot water production is triggered.

If there is not enough domestic hot water (e.g. if the domestic hot water does not heat up quickly enough): reduce the trip differential (hysteresis) by modifying the value of the DP120 parameter. The DHW tank will then heat up the water more quickly.

5 Domestic hot water production only.

10.4.3

Running the back-up in domestic hot water mode

Start-up conditions for the back-up

The start-up conditions for the back-up producing domestic hot water are described in the following table.

Tab.53

Parameter Setting

AP001 The function of the BL1 blocking input is not set to 4, 6 or 8

AP100 The function of the BL2 blocking input is not set to 4, 6 or 8

AP098 Blocking input 1 contact direction configuration

0 = input active on Open contact 1 = input active on Closed contact 2 = input active on Off contact

AP099 Blocking input 2 contact direction configuration

0 = input active on Open contact 1 = input active on Closed contact

Operating description

The behaviour of the hydraulic or electrical back-up in domestic hot water mode depends on the configuration of the DP051 parameter.

Tab.54 Behaviour of the hydraulic or electrical back-up

Value of the DP051 parameter Operating description

0 The system gives priority to the heat pump during domestic hot water production.

Recourse to the hydraulic or electrical back-up is only taken if the DP090 time delay has elapsed in domestic hot water mode, unless hybrid mode is activated. In that case, hy brid logic takes over.

1 Domestic hot water production mode gives priority to comfort by accelerating domestic

hot water production by simultaneously using the heat pump and the hydraulic or electri cal back-up. In this mode, there is no maximum time for domestic hot water production as the use of the back-ups helps to ensure domestic hot water comfort more quickly.

10.5

Setting the parameters

10.5.1 Language selection

1. Access the User menu.

2. Select the HMI sub-menu.

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3. Select the AP103 parameter corresponding to language selection by pressing the or keys.

4. Confirm by pressing the key.

5. Access the languages available by pressing the key.

6. Select the language by pressing the or keys until the desired language is displayed.

7. Confirm by pressing the key.

8. Go back to the main display by pressing the h key.

10.5.2 Selecting the type of outdoor unit and the type of back-up (CN1 et CN2)

1. Go to the Installer menu.

2. Access the Installer menu: enter the code 0012 by pressing the and keys.

3. Confirm access by pressing the key.

4. Access the EHC–04 PCB parameters by pressing the or key.

5. Select the CNF menu (control panel reset) by pressing the or keys.

6. Confirm by pressing the key.

7. Refer to the table below and enter the values corresponding to the type of outdoor unit and the type of back-up by pressing on the or

keys.

8. Confirm the selection by pressing the key.

9. Go back to the main display by pressing the h key.

CNF menu

The CNF menu is used to configure the hybrid heat pump according to the type of back-up and the output of the outdoor unit installed.

Tab.55 Value of the CN1 and CN2 parameters with a hydraulic back-up

Output of the outdoor unit CN1 CN2

4.5 kW 18 3

Fig.107

MW-5000406-2

Fig.108

MW-5000405-2

Fig.109

MW-5000407-2

Fig.110

MW-5000026-5

Fig.111

MW-6000367-3

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Output of the outdoor unit CN1 CN2

6 kW 2 3

8 kW 3 3

11 kW 4 3

16 kW 5 3

Tab.56 Value of the CN1 and CN2 parameters with an electrical back-

Output of the outdoor unit CN1 CN2

4.5 kW 17 3

6 kW 7 3

8 kW 8 3

11 kW 9 3

16 kW 10 3

10.5.3

Setting the heating curve

The heating base point temperature is used to impose a minimum operat ing temperature on the heating circuit.

The minimum operating temperature may be constant if the circuit gradient is zero.

1. Go to the Installer menu.

2. Access the Installer menu by entering the code 0012 by pressing the

and keys.

3. Confirm access by pressing the key.

4. Select the desired circuit or PCB by pressing the or key.

Circuit PCB

A EHC–04

B SCB-04

5. Confirm the selection by pressing the key.

6. Set the heating gradient using the CP230 parameter.

7. If necessary, set the maximum flow set point using the CP000 pa rameter.

8. If necessary, set the curve base temperature in daytime mode using the CP210 parameter.

9. If necessary, set the curve base temperature in night mode using the CP220 parameter.

10. Go back to the main display by pressing the h key.

10.5.4 Configuring the estimated electrical energy consumption function

Tab.57

Connections The electrical energy meter is connected to the S0+/S0- input on the EHC–04 PCB.

Do not install meters for the electrical back-ups.

Fig.112 Configuring the heating curve pa

rameters

MW-6000338-3

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Energy meter specifications Minimum admissible voltage: 27 V

Minimum admissible intensity: 20 mA

Minimum pulse time: 25 ms

Maximum frequency: 20 Hz

Pulse weighting: between 1 and 1000 Wh

Choose meters whose impulse number per kW is a multiple of 1000.

Energy metering provides information on:

electrical energy consumption, the production of thermal energy for heating, domestic hot water and cooling modes.

The thermal energy from the hydraulic or electrical back-up is also fac tored in to provide the full tally of restored thermal energy.

1. Go to the Installer menu.

2. Access the Installer menu: enter the code 0012 by pressing the and keys.

3. Confirm access by pressing the key.

4. Select EHC-04 by pressing the or key.

5. Confirm access by pressing the key.

6. Configure the HP033, HP034 and HP035 parameters.

Tab.58

Situation Configuration

According to the type of energy meter installed

Adjust the impulse value of the HP033 parameter. The setting range of the HP033 parameter goes from 0 (no metering) to 1000 Wh. The default setting for the impulse weight is 1 Wh. If the meter impulse weight is given in a number of impulses per kWh, divide this value by 1000.

If a hydraulic back-up is fitted

Set the HP034 and HP035 parameters to 0.

If an electrical back-up is fitted

Set the HP034 and HP035 parameters according to the configuration of the electrical back-up stages output.

10.5.5 Configuring a hydraulic back-up

1. Configure the back-up boiler according to its control panel.

Configuring a boiler equipped with a room thermostat input

1. Set the following installer parameters on the boiler control panel.

Tab.59 Setting with MK2 control panel

Parameter Setting

E.TEL THERM A

TPC J / TPC N Domestic hot water set point temperature +5°C

PENTE CIRC.A 0.0

Tab.60 Setting with another control panel

Parameter Setting

Heating / Boiler thermostat set point temperature Domestic hot water set point temperature +5°C

2. Switch off the control panel.

3. Disconnect the outside temperature sensor.

4. Mount a 1-kOhm resistor instead of the outside sensor.

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See Boiler installation manual.

Configuring a boiler not equipped with a room thermostat input

1. Set the following installer parameters on the boiler control panel:

Switch the boiler control system to 24h/24 comfort mode. Heating set point temperature = Domestic hot water set point tem perature + 5°C.

See Boiler installation manual.

10.5.6 Configuring the hybrid operating mode of a hydraulic back-up

Important Hybrid operating mode is only available for appliances with a hy draulic back-up.

The hybrid function consists of an automatic switch between the heat pump and the boiler, according to the cost, the consumption or emission of CO2 of each heat generator.

Tab.61 Calculating the threshold coefficient of performance If the coefficient of performance of the heat pump is higher than the threshold coefficient of performance, the heat pump takes

priority. Otherwise only the boiler back-up is enabled. The heat pump coefficient of performance depends on the outside tem perature and the heating water set point temperature.

HP061 parame ter

Description

HP061 = 1 Optimisation of energy costs for the consumer (factory setting): the control system chooses the cheapest

generator according to the coefficient of performance of the heat pump and according to energy cost. The switch between the heat pump and the boiler occurs at the value of the threshold coefficient of per formance calculated according to energy cost optimisation mode with the energy cost parameters.

HP062: Energy cost in Hybrid Electricity cost in high tarif

HP063: Energy cost in Hybrid Electricity cost in low tarif

HP064: Cost of fossil energy (oil or gas) – price per m3 or per litre – Can be set from 0.01 to 2.50 €/kWh

HP061 = 2 Optimisation of primary energy consumption: The control system chooses the generator that consumes the

least primary energy. The switch between the heat pump and the boiler occurs at the HP054 threshold coefficient of performance value according to the primary energy consumption optimisation mode.

HP061 = 3 Optimisation of CO2 emissions: The control system chooses the generator that emits the least CO2.

The switch between the heat pump and the boiler occurs at the threshold coefficient of performance value calculated according to the CO2 emissions optimisation mode:

HP065: Electrical CO2 emission in heating mode

HP066: Electrical CO2 emission in DHW mode

HP067: Gas or Oil CO2 emission

HP061 = 0 No optimisation: The heat pump always starts up first, regardless of the conditions. The boiler back-up

starts up afterwards, if required.

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C COP: Coefficient of performance

CSThreshold coefficient of performance

T Outdoor temperature

T1HP051 parameter: Minimum outside temperature below which

Heat Pump is stopped

T2HP000 parameter: Outside bivalence temperature

10.5.7 Configuring a convection fan or underfloor cooling

This function is only available when the type of circuit selected is under floor heating or convection fan: CP020 parameter set to 2 or 5.

Important The heating should be activated in order for the cooling to func tion.

1. Go to the Installer menu.

2. Access the Installer menu by entering the code 0012 by pressing the and keys.

3. Confirm access by pressing the key.

4. Access the EHC–04 PCB parameters by pressing the or key.

5. Select the AP028 parameter corresponding to cooling by pressing

the or keys.

6. Confirm by pressing the key.

7. Select value 1 by pressing on the to activate the cooling function.

8. Confirm by pressing the key.

9. Go back to the main display by pressing h.

10. Program the desired cooling hours in the menu, circuit A or B, TP.C sub-menu.

11.

Go back to the main display by pressing h.

12. If necessary, force cooling or configure cooling temperatures in the User menu, circuits A and B:

Tab.62

Parameter Description

AP015 Force manually the heat pump in cooling mode

AP016 Activating/deactivating heating: deactivating heating also deactivates cooling.

CP270 Mixing flow temperature setpoint cooling of the zone

CP280 Fan flow setpoint cooling of the zone

13. Check the setting for the CP690 parameters according to the ther mostat or room sensor used.

Fig.113 Influence of outdoor temperatures

and bi-valency.

T1 T2

MW-5000542-1

Fig.114

MW-4000197-2

Fig.115

MW-6000366-3

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For more information, see Description of the PCBs, page 73 CNF menu, page 66

10.5.8 Screed drying with the aid of the heat pump

The screed drying program reduces the drying time of a freshly poured screed floor.

The settings for these temperatures must follow the screed layer's rec ommendations. Activation of this function via the CP470 parameter (setting other than 0) forces the permanent display of the screed drying function and deacti vates all other control system functions. When the screed drying function is active on one circuit, all other circuits and the domestic hot water circuit continue to run. It is possible to use the screed drying function on circuits A and B. The parameter settings must be made on the PCB that controls the circuit concerned.

1 Number of days 2 Heating set point temperature (°C) 3 Screed drying start temperature 4 Screed drying stop temperature 5 Start of the screed drying function 6 Number of days on which the screed drying function is activated 7 End of the screed drying function, back to normal running

Important Every day at midnight, the screed drying start temperature set point is recalculated and the remaining number of days on which the screed drying function is running decreases.

1. Go to the Installer menu.

2. Access the Installer menu by entering the code 0012 by pressing the and keys.

3. Confirm access by pressing the key.

4. Select the desired circuit or PCB by pressing the or key.

Circuit PCB

A EHC–04

B SCB-04

5. Configure the following parameters

Tab.63 Screed drying management parameter

Parameter Description

CP470 Number of days of screed drying

CP480 Setting of the start temperature of the screed drying programm of the zone

CP490 Setting of the stop temperature of the screed drying programm of the zone

Fig.116 Screed drying curve

MW-C002768-3

00:00 00:00 00:00

Fig.117 Example

MW-C002769-3

10 9 8 7 6 5 4 3 2 1

23 20

00:00 00:00 00:00

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10.5.9 Drying screed without the heat pump outdoor unit.

The indoor module can be used for drying screed using the electrical back-up in forced operation mode. It is not necessary to connect the out door unit.

1. Switch on the heat pump and activate the screed drying function.

2. Adjust the parameters for screed drying.

3. Force the electrical back-up by increasing the value of the HP000

parameter.

10.5.10 Supplying the heat pump with photovoltaic energy

When lower cost electrical energy is available, such as photovoltaic ener gy, the heating circuit and domestic hot water tank (if present) can be overheated. Underfloor cooling cannot be supplied with power in this way.

To activate this functionality, enter data for the AP001 parameter and con nect a dry contact to the BL1 input or the AP100 parameter and a dry con tact on the BL2 input.

Tab.64 Voluntary overheating parameters

Parameter Description

AP001 or AP100 Hydraulic back-up: 8 (Photovoltaic with heat pump only)

Electrical back-up: 9 (Photovoltaic with electrical back-up)

HP091 Offset temperature of heating setpoint when photovoltaic function is activated

HP092 Offset temperature of DHW setpoint when photovoltaic function is activated

10.5.11

Connecting the installation to a Smart Grid

The heat pump can receive and manage control signals from the "smart" energy distribution network (Smart Grid). Based on the signals received by the terminals of the BL1 IN and BL2 IN multifunction inputs, the heat pump shuts down or voluntarily overheats the heating system in order to opti mise electricity consumption.

Tab.65 Operation of the heat pump in a Smart Grid

BL1 IN input

BL2 IN in put

Operating

Inactive Inactive Normal: The heat pump and the electrical back-up

operate normally

Active Inactive Shutdown: The heat pump and the electrical back-

up are shut down

Inactive Active Economy: The heat pump voluntarily overheats

the system without the electrical back-up

Active Active Super Economy: The heat pump voluntarily over

heats the system with the electrical back-up

1. Connect the Smart Grid signal inputs to the BL1 IN and BL2 IN in

puts on the EHC–04 PCB. Smart Grid signals come from dry con tacts. Germany: Connect the SG1 and SG2 terminals respectively from the electricity meter to the BL1 IN and BL2 IN inputs on the EHC–04 power circuit board.

2. Set the AP001 and AP100 parameters to 10.

The heat pump is ready to receive and manage Smart Grid sig nals.

Fig.118

MW-1000988-1

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3. Choose the contact directions of the BL1 IN and BL2 IN multifunc

tion inputs by setting the AP098 and AP099 parameters.

Tab.66

Parameter Description

AP098 Blocking input 1 contact direction configuration

0 = input active on Open contact 1 = input active on Closed contact

AP099 Blocking input 2 contact direction configuration

0 = input active on Open contact 1 = input active on Closed contact

4. Configure the temperature offsets for the voluntary overheating by

configuring the HP091 and HP092 parameters.

Tab.67

Parameter Description

HP091 Offset temperature of heating setpoint when

photovoltaic function is activated

HP092 Offset temperature of DHW setpoint when

photovoltaic function is activated

10.5.12 Reducing the noise level of the outdoor unit

Silent mode is used to reduce the noise level on the outdoor unit during a given time range, particularly at night. This mode gives temporary prece dence to silent running rather than temperature control.

Important

Silent mode only operates if the silent running kit is connected to the outdoor unit. This package is not compatible with the AWHP 4.5 MR outdoor unit.

Silent mode is managed by the following parameters which can be found in the Installer menu, EHC–04, ADV:

Tab.68

Parameter Description

HP058 Enabling Heat pump Silent mode

HP094 Start time of the low noise when option activated

HP095 Stop time of the low noise when option activated

10.5.13 Detecting an additional or replacement PCB

The automatic detection function is used if a control PCB has been re moved, replaced or added.

1. Go to the Installer menu.

2. Access the Installer menu by entering the code 0012 by pressing the and keys.

3. Confirm access by pressing the key.

4. Select the EHC–04 main PCB by pressing the or key.

5. Confirm the selection by pressing the key.

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6. Select the auto detection parameter by pressing the or keys.

7. Confirm auto detection by pressing the key.

The automatic detection function is running.

10.6

Reading out measured values

The measured values are available in the Information menu of the dif ferent PCBs.

Certain parameters are displayed:

according to certain system configurations, according to the options, circuits or sensors actually connected.

Tab.69 Choosing the menu

Counters Selection

Measured values on circuit A Choose menu EHC-04

Measured values on circuit B Choose menu SCB04-B

Measured values connected to the operation of the heat pump

Choose menu EHC-04

Tab.70 Values available (X) in the sub-menus EHC-04, SCB04-B

Parameter Description Unit EHC-04 SCB04-B

AM002 "Silent mode" status X

AM010 The current pump speed % X

AM012 Current main status of the appliance.

See Control system sequence chapter

X X

AM014 Current sub status of the appliance.

See Control system sequence chapter

X X

AM015 Is the pump running? X

AM016 Flow temperature of appliance. °C X

AM019 Water pressure of the primary circuit. bar X

AM027 Instantaneous outside temperature °C X X

AM040 Temperature used for hot water control algorithms. °C X

AM056 Wate flow rate in the system l/min X

AM091 Seasonal mode active (summer / winter)

0: Winter 1: Frost protection 2: Summer neutral band 3: Summer

X X

AM101 Internal system flow temperature setpoint X

CM030 Measure of the Room temperature of the zone °C X X

Fig.119

MW-1000666-1

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Parameter Description Unit EHC-04 SCB04-B

CM040 Measure Zone Flow Temperature or DHW

temperature

°C X

CM060 Current Pump speed of zone % X

CM120 Zone Current Mode:

0 =Scheduling 1 =Manual

2 =Antifrost 3 =Temporary

X X

CM130 Current activity of the zone:

0 =Anti frost 1 =Reduced 2 =Comfort 3 =Anti legionella

X X

CM190 Wished room temperature setpoint of the zone °C X X

CM210 Current Outside Temperature of the zone °C X X

DM001 Domestic Hot Water tank temperature (bottom sensor) °C X

DM006 Domestic Hot Water tank temperature (top sensor) X

DM009 Automatic/derogation status of Domestic Hot Water

mode:

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

°C X

DM029 Domestic Hot Water temperature setpoint °C X

HM001 Heat pump flow temperature after condenser °C X

HM002 Heat pump return temperature after condenser. °C X

HM033 Flow temperature setpoint in cooling mode °C X

HM034 Heat pump PCU backup flow temperature °C not used

HM035 Heat pump PCU backup return temperature °C not used

HM036 Heat pump PCU backup domestical hot water

temperature

°C not used

HM037 Heat pump PCU back up Internal Setpoint °C not used

HM038 Heat pump PCU back up status not used

HM039 Heat Pump PCU back up Sub Status not used

HM040 Heat Pump PCU back up Output power % not used

HM041 Heat pump PCU back up locking code not used

HM042 Heat pump PCU back up blocking code not used

HM046 Heat pump 5V signal output setpoint V X

PM002 External winning Central Heating setpoint °C X

Fxx.xx Software version for the selected PCB X X

Pxx.xx Parameter version for the selected PCB X X

Tab.71

Values available (X) in the sub-menu

Parameter Description EHC--04 SCB04-B

F02.01 HMI software version X X

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Parameter Description EHC--04 SCB04-B

P00.01 HMI parameter version X X

10.6.1

Control system sequence

Tab.72 List of statuses and sub-statuses

Status Appliance: AM012 parameter Appliance sub status: AM014 parameter

0 00= total system shut-down

1= heating / cooling / domestic hot water de mand

Heat Demand

00 = off The set point is reached. The compressor can start up whenever necessary. 01= anti-short cycle The heating set point has been reached. The compressor is not authorised to restart. 02= reversal valve switch to heating position 03= power supply to the hybrid pump 04= pending start-up conditions on the heat pump and the back-ups 62= three-way valve switch to domestic hot water position

3= operating in heating mode 30= normal operation

The compressor or the back-ups are running. 31= internal set point limited If the heating set point on the heat pump differs from the system set point. 60= pump post-operation Heat pump and back-up shut-down, system pump operation. 65= compressor bypass The back-ups are operating. 66= the temperature exceeds the compressor's maximum operating tempera ture The compressor has stopped. The back-ups are operating. 67= the outside temperature is lower than the compressor's maximum operat ing temperature The compressor has stopped. The back-ups are operating. 68= the hybrid function requests compressor shut-down The compressor has stopped. The back-ups are operating. 69= defrosting running The compressor is running. 70= defrosting conditions not met The compressor has stopped. The back-ups are operating. 71= defrosting running The compressor and the back-ups are running.

10 Settings

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Baxi Platinum BC iPlus Installation And Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual