DeDietrich MIT-M /E Troubleshooting guide

ADVANCE
S U S T A I N A B L E C O M F O R T ®
MW-1001672-1
MW-1001672-1
en
Installation, user and service manual
Reversible packaged air source heat pump
HPI M
MIT-M /E
MIT-M /H

Contents
1 Safety instructions and recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.1 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.2 General instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.3 Electrical safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
1.4 Hydraulic safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
1.5 Recommendations for the installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
1.6 Recommendations for operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
1.7 Specific instructions for service, maintenance and breakdowns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
1.8 Liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2 Symbols used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.1 Symbols used in the manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
2.2 Symbols used on the data plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.3 Symbols used on the appliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3 Technical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.1 Homologations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.1.1 Directives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
3.1.2 Factory test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.2 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
3.2.1 Compatible heating devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
3.2.2 Heat pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.2.3 Heat pump weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.2.4 Technical data - Medium-temperature heat pump space heaters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.2.5 Sensor specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
3.2.6 Circulating pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.3 Dimensions and connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.3.1 Indoor unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.4 Electrical diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4 Description of the product . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.1 Main components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
5 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5.1 Installation regulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5.2 Standard delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5.3 Putting the outdoor unit in place: precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
5.4 Data plate on the indoor module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
5.5 Positioning the indoor unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
5.5.1 Selecting the location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
5.5.2 Allowing sufficient space for the indoor module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
5.5.3 Fitting the assembly rail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
5.5.4 Mounting the module on the wall . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
5.6 Hydraulic connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
5.6.1 List of operations to be performed before connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
5.6.2 Possible connections: 1 or 2 circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
5.6.3 Connections possible up to 4 circuits without buffer tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
5.6.4 Connections possible up to 4 circuits with buffer tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
5.6.5 Safety unit (only for France) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
5.6.6 Safety unit (except France) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
5.6.7 Special precautions for connecting the heating circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
5.6.8 Connecting the safety valve drain pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
5.6.9 Checking the heating circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
5.6.10 Filling the installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
5.7 Electrical connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
5.7.1 Recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
5.7.2 Recommended cable cross section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
5.7.3 Accessing the PCBs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
5.7.4 Routing the cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
5.7.5 Description of the connection terminal blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
5.7.6 Connecting the cables to the PCBs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
5.7.7 Connecting the indoor module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
5.7.8 Connecting the outdoor unit bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
5.7.9 Connecting the outdoor temperature sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Contents
2 MIT-M 7756241 - v02 - 19062020

5.7.10 Connecting the hydraulic back-up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
5.7.11 Connect and configure the power supply for the electrical back-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
5.7.12 Checking the electrical connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
6 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
6.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
6.2 Control panel description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
6.2.1 Description of the user interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
6.2.2 Description of the home screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
6.2.3 Description of status icons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
6.3 Commissioning procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
6.3.1 CN1 et CN2 parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
6.4 Final instructions for commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
7 Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
7.1 Menu tree
On
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
7.2 Accessing the Installer level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
7.3 Setting the parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
7.3.1 Saving the installer details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
7.3.2 Regional and ergonomic parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
7.3.3 Saving the commissioning settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
7.3.4 Resetting or re-establishing the parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
7.3.5 Setting the heating curve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
7.3.6 Improving heating comfort . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
7.3.7 Improving domestic hot water comfort . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
7.3.8 Configuring a hydraulic back-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
7.3.9 Configuring the estimated electrical energy consumption function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
7.3.10 Configuring the hybrid operating mode of a hydraulic back-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
7.3.11 Configuring underfloor cooling or a convection fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
7.3.12 Selecting the conditions for activating Cooling mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
7.3.13 Drying screed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54
7.3.14 Connecting an on/off or modulating thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55
7.3.15 Configuring a thermostat with a heating/cooling control contact . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
7.3.16 Installing a buffer tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
7.3.17 Configuring the buffer tank for storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
7.3.18 Configuring and using the CB04 auto-filling option kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
7.3.19 Supplying the heat pump with photovoltaic energy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
7.3.20 Connecting the installation to a Smart Grid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
7.3.21 Reducing the noise level of the outdoor unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
7.3.22 Configuring the maintenance message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
7.4 List of parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
7.4.1 Installation Setup > CIRCA0 > Parameters, counters, signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
7.4.2 Installation Setup > CIRCA1/CIRCB1/DHW1/CIRCC1/CIRCAUX1 > Parameters, counters, signals > . . . . 65
7.4.3 Installation Setup > Stratified DHW tank > Parameters, counters, signals . . . . . . . . . . . . . . . . . . . . . . . . . . 66
7.4.4 Installation Setup > DHW tank > Parameters, counters, signals > Adv. Parameters . . . . . . . . . . . . . . . . . . 67
7.4.5 Installation Setup > Air Src heat pump > Parameters, counters, signals . . . . . . . . . . . . . . . . . . . . . . . . . . . .67
7.4.6 Installation Setup > Air Src Heat pump > Parameters, counters, signals > Adv. Parameters . . . . . . . . . . . . 70
7.4.7 Installation Setup > Cascade management B > Parameters, counters, signals . . . . . . . . . . . . . . . . . . . . . . 70
7.4.8 Installation Setup > Outside temp > Parameters, counters, signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
7.4.9 Installation Setup > Digital input > Parameters, counters, signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72
7.4.10 Installation Setup > Analogue input > Parameters, counters, signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
7.4.11 Installation Setup > 0-10 V input > Parameters, counters, signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
7.4.12 Installation Setup > Appliance status > Parameters, counters, signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73
7.5 Description of the parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74
7.5.1 Running the back-up in heating mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74
7.5.2 Running the back-up in domestic hot water mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .76
7.5.3 Operation of the switch between heating and production of domestic hot water . . . . . . . . . . . . . . . . . . . . . .78
8 Connection and installation examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .80
8.1 Installation with hydraulic back-up, two heating circuits and a domestic hot water tank . . . . . . . . . . . . . . . . . . . . . . . .80
8.1.1 Carrying out the electrical connections and the parameter settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
8.2 Installation with electrical back-up, two heating circuits and a domestic hot water tank . . . . . . . . . . . . . . . . . . . . . . . .83
8.2.1 Carrying out the electrical connections and the parameter settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
8.3 Connecting a swimming pool . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Contents
7756241 - v02 - 19062020 MIT-M 3

9 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .87
9.1 Personalising the zones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
9.1.1 Definition of the term "zone" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
9.1.2 Changing the name and symbol of a zone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
9.2 Personalising the activities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
9.2.1 Activity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
9.2.2 Changing the name of an activity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
9.2.3 Changing the temperature of an activity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
9.3 Room temperature for a zone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
9.3.1 Selecting the operating mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
9.3.2 Activating and configuring a timer programme for heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
9.3.3 Activating and configuring a timer programme for cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .89
9.3.4 Changing the room temperature temporarily . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
9.4 Domestic hot water temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .89
9.4.1 Selecting the operating mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
9.4.2 Activating and configuring a timer programme for domestic hot water . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
9.4.3 Forcing domestic hot water production (override) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
9.4.4 Modifying the domestic hot water set point temperatures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
9.5 Managing the heating, cooling and domestic hot water production . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
9.5.1 Switching the central heating on/off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .91
9.5.2 Forcing cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
9.5.3 Periods of absence or going on holiday . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .91
9.6 Monitoring the energy consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
9.7 Starting and stopping the heat pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
9.7.1 Starting the heat pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
9.7.2 Shutting down the heat pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
10 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
10.1 Precautions to be taken before maintenance operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
10.2 List of inspection and maintenance operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .93
10.3 Draining the heating circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
10.4 Cleaning the magnetic filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
10.4.1 Magnetic filter annual maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
10.4.2 Full cleaning of the magnetic filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
10.5 Checking the hydraulic pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .97
10.6 Checking operation of the appliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .97
10.7 Replacing the battery in the control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .97
11 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .99
11.1 Tripping the safety valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
11.2 Resolving operating errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
11.2.1 Types of error code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
11.2.2 Displaying and clearing the error memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .103
11.2.3 Accessing information on the hardware and software versions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .103
12 Decommissioning and disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .105
12.1 Decommissioning procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .105
12.2 Disposal and recycling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
13 Energy savings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
14 Spare parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
14.1 Indoor module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
14.1.1 Casing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
14.1.2 Control system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .108
14.1.3 Other components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
15 Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
15.1 Product fiche . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
15.2 Product fiche - Temperature Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .113
15.3 Package fiche . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Contents
4 MIT-M 7756241 - v02 - 19062020

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 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 fixed wiring in accordance with in
stallation 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.
This appliance must be connected to the protective earthing.
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 "Recommended ca
ble cross-sections" chapter.
To connect the appliance to the electricity mains, refer to the "Electrical Con
nections" chapter.
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.
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
Leave sufficient space to enable the appliance to be correctly
installed. Refer to the Installation section
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.
1 Safety instructions and recommendations
7756241 - v02 - 19062020 MIT-M 5

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
accordance 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
conductor.
Only qualified professionals may carry out electrical connections, always
with the power off.
Separate the very low voltage cables from the 230/400 V power supply
cables.
1.4 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 unit and the heating circuit.
Fit drainage valves between the indoor unit and the heating circuit.
Do not add any chemical products to the heating water without first
consulting a water treatment specialist. For example: antifreeze, water
softeners, products to increase or reduce the pH value, chemical additives
and/or inhibitors. These may cause faults in the heat pump and damage
the heat exchanger.
1.5 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.
Keep this document close to the place where the appliance is installed.
Do not make any modifications to the heat pump without the written
consent 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.
1.6 Recommendations for operation
The frost protection function does not work if the heat pump is switched
off.
If the home is unoccupied for a long period and there is a risk of frost,
drain the indoor unit, the heating system, the pipes between the indoor
unit and the outdoor unit, and the outdoor unit.
Keep the heat pump accessible at all times.
1 Safety instructions and recommendations
6 MIT-M 7756241 - v02 - 19062020

Never remove or cover the labels and data plates affixed to appliances.
Labels and data plates must be legible throughout the entire lifetime of the
appliance.
Immediately replace damaged or illegible instructions and warning
stickers.
Give preference to the OFF or frost protection mode rather than switching
off the system to leave the following functions running:
Anti blocking of pumps
Frost Protection
Regularly check the presence of water and pressure in the heating
system.
Do not touch radiators for long periods. Depending on the heat pump
settings, the temperature of the radiators may exceed 60°C.
Do not drain the installation, except in cases of absolute necessity. E.g.:
several months' absence with the risk of temperatures in the building
falling below freezing.
1.7 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 power supply to the heat pump, the indoor
unit and the hydraulic/electrical back-up.
Wait for approx. 20-30 seconds for the outdoor unit capacitors to be
discharged, 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
pressures, which may cause serious injuries.
Locate and correct the cause of power cut before resetting the safety
thermostat.
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.
After maintenance or repair work, check the entire heating system to
ensure 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.
For heat pumps with a refrigerant fluid load of more than 5 tonnes of CO2
equivalent, the user must have an annual leak-tightness test performed on
the refrigerant equipment.
1 Safety instructions and recommendations
7756241 - v02 - 19062020 MIT-M 7

1.8 Liabilities
Tab.1
Manufacturer's liability Our products are manufactured in compliance with the requirements of the various Di
rectives applicable. They are therefore delivered with the marking and any docu
ments necessary. In the interests of the quality of our products, we strive constantly to
improve them. We therefore reserve the right to modify the specifications given in this
document.
Our liability as manufacturer may not be invoked in the following cases:
Failure to abide by the instructions on installing 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 installer must observe the following instructions:
Read and follow the instructions given in the manuals provided with the appliance.
Install the appliance in compliance with prevailing legislation and standards.
Carry out initial commissioning and any checks necessary.
Explain the installation to the user.
If maintenance is necessary, warn the user of the obligation to check the appliance
and keep it in good working order.
Give all the instruction manuals to the user.
User's liability To guarantee optimum operation of the system, the user must abide by the following in
structions:
Read and follow the instructions given in the manuals provided with the appliance.
Call on a qualified professional to carry out installation and initial commissioning.
Ask your installer to explain your installation to you.
Have the required inspections and maintenance carried out by a qualified installer.
Keep the instruction manuals in good condition close to the appliance.
1 Safety instructions and recommendations
8 MIT-M 7756241 - v02 - 19062020

2 Symbols used
2.1 Symbols used in the manual
This manual uses various danger levels to draw attention to special
instructions. We do this to improve user safety, to prevent problems and to
guarantee correct operation of the appliance.
Danger
Risk of dangerous situations that may result in serious personal
injury.
Danger of electric shock
Risk of electric shock.
Warning
Risk of dangerous situations that may result in minor personal
injury.
Caution
Risk of material damage.
Important
Please note: important information.
See
Reference to other manuals or pages in this manual.
2.2 Symbols used on the data plate
1The symbol indicates compatibility with the SMART TC° connected
thermostat.
2Information on the electrical back-up: power supply and maximum
output
3Before installing and commissioning the appliance, carefully read
the instruction manuals provided
4Dispose of used products in an appropriate recovery and recycling
structure
2.3 Symbols used on the appliance
Caution: danger of electric shock
1Disconnect the mains power prior to carrying out any work.
2Work on the appliance is only authorised if carried out by a
qualified engineer
1 CIRCB1 heating circuit flow
2 CIRCB1 heating circuit return
3 CIRCA0 heating circuit flow
4 CIRCA0 heating circuit return
5Flow to the back-up boiler
6Return from the back-up boiler
7Flow to the outdoor unit
8Return from outdoor unit
9Power cord 230 V
9Safety extra-low voltage power supply cable
11 Power supply cable 230 V / 400 V
Fig.1
MW-1001369-1
1 2 3
4
Fig.2 Symbols used on the appliance
1 2
M002628-A
Fig.3 Symbols used on the connection
label
MW-1001193-2
A
A
1
B
3
6
2
B
4
10
7
11
5
8 9
2 Symbols used
7756241 - v02 - 19062020 MIT-M 9

3 Technical specifications
3.1 Homologations
3.1.1 Directives
This product complies with the requirements of the following European
Directives 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
specified 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
3.2 Technical data
3.2.1 Compatible heating devices
Tab.2
Outdoor unit Associated/compatible indoor units
MONO AWHP 6 MR MIT-M /E
MIT-M /H
MONO AWHP 8 MR MIT-M /E
MIT-M /H
MONO AWHP 11 MR MIT-M /E
MIT-M /H
3.2.2 Heat pump
The specifications are valid for a new appliance with clean heat
exchangers.
Maximum operating pressure: 0.3 MPa (3 bar)
3 Technical specifications
10 MIT-M 7756241 - v02 - 19062020

Tab.3 Outdoor unit conditions of use
MONO AWHP 6
MR
MONO AWHP 8
MR
MONO AWHP
11 MR
Heating mode Water (maximum temperature) +60 °C +60 °C +60 °C
Outdoor air -20 °C /
+35 °C
-20 °C /
+35 °C
-20 °C /
+35 °C
Cooling mode Water (minimum temperature) +5 °C +5 °C +5 °C
Outdoor air -5°C /
+46 °C
-5 °C /
+46 °C
-5°C /
+46 °C
Tab.4 Heating mode: outdoor air temperature +7 °C, water temperature at the outlet +35 °C. Performances in accordance
with EN 14511-2.
Measurement type Unit MONO AWHP 6
MR
MONO AWHP 8
MR
MONO AWHP 11
MR
Heat output kW 6.0 9.0 11.20
Coefficient of performance (COP) 4.83 4.51 4.54
Absorbed electrical power kWe 1.24 2.0 2.47
Tab.5 Heating mode: outdoor air temperature +2 °C, water temperature at the outlet +35 °C. Performances in accordance
with EN 14511-2.
Measurement type Unit MONO AWHP 6
MR
MONO AWHP 8
MR
MONO AWHP 11
MR
Heat output kW 6.0 6.80 9.0
Coefficient of performance (COP) 3.64 3.60 3.68
Absorbed electrical power kWe 1.65 1.89 2.45
Tab.6 Heating mode: outdoor air temperature -7°C, water temperature at the outlet +35 °C. Performances in accordance
with EN 14511-2.
Measurement type Unit MONO AWHP 6
MR
MONO AWHP 8
MR
MONO AWHP 11
MR
Heat output kW 6 7.5 9.0
Coefficient of performance (COP) 3.11 2.69 3.27
Absorbed electrical power kWe 1.94 2.79 2.75
Tab.7 Heating mode: outdoor air temperature +7 °C, water temperature at the outlet +55 °C. Performances in accordance
with EN 14511-2.
Measurement type Unit MONO AWHP 6
MR
MONO AWHP 8
MR
MONO AWHP 11
MR
Heat output kW 6.0 9.0 11.2
Coefficient of performance (COP) 2.87 2.78 2.70
Absorbed electrical power kWe 2.09 3.24 4.15
Tab.8 Cooling mode: outdoor air temperature +35 °C, water temperature at the outlet +18 °C. Performances in accordance
with EN 14511-2.
Measurement type Unit MONO AWHP 6
MR
MONO AWHP 8
MR
MONO AWHP 11
MR
Cooling output kW 6 7.50 10.00
Energy efficiency ratio (EER) 4.26 4.42 4.74
Absorbed electrical power kWe 1.408 1.70 2.11
3 Technical specifications
7756241 - v02 - 19062020 MIT-M 11

Tab.9 Common specifications
Measurement type Unit MONO AWHP 6
MR
MONO AWHP 8
MR
MONO AWHP 11
MR
Total dynamic head at nominal flow rate
(primary circuit)
kPa 75 65 50
Power voltage of the outdoor unit V 230 230 230
Start-up amperage A 9 9 12
Maximal amperage A 16 16 28
Acoustic power - Inside(1) dB(A) 40 40 40
Acoustic power - Outside (1) dB(A) 58 58 60
Refrigerant fluid R410A kg 2.4 2.4 3.3
R410A refrigerant(2) tCO2e 5.01 5.01 6.89
(1) Noise radiated by the envelope - Test run in accordance with the NF EN 12102 standard, temperature conditions: air 7 °C, water 55 °C
(inside and outside)
(2) The quantity of refrigerant in tonnes of 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.
3.2.3 Heat pump weight
Tab.10 Indoor unit
Data Unit MIT-M /E MIT-M /H
Weight empty kg 57 50
Tab.11 Outdoor unit
Data Unit MONO AWHP 6 MR MONO AWHP 8 MR MONO AWHP 11 MR
Weight kg 97 97 118
3.2.4 Technical data - Medium-temperature heat pump space
heaters
Tab.12 Technical parameters for heat pump space heaters (parameters declared for medium-temperature application)
Product name MONO AWHP
6 MR
MONO AWHP
8 MR
MONO AWHP
11 MR
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 9 10
Rated heat output under colder conditions Prated kW 4 5 7
Rated heat output under warmer conditions Prated kW 6 9 10
Declared capacity for heating for part load at an in
door temperature of 20 °C and outdoor temperature
Tj
Tj = -7 °C Pdh kW 5.3 7.5 9.0
Tj = +2 °C Pdh kW 3.2 4.6 5.7
Tj = +7 °C Pdh kW 2.9 2.9 4.7
Tj = +12 °C Pdh kW 2.7 2.9 4.1
Tj = bivalent temperature Pdh kW 5.3 7.5 9.0
Tj = operation limit temperature Pdh kW 3.5 3.8 6.5
3 Technical specifications
12 MIT-M 7756241 - v02 - 19062020

Product name MONO AWHP
6 MR
MONO AWHP
8 MR
MONO AWHP
11 MR
Bivalent temperature Tbiv °C -7 -7 -7
Degradation coefficient(2)
Cdh — 1.0 1.0 1.0
Seasonal space heating energy efficiency under
average conditions
ƞs % 129 137 133
Seasonal space heating energy efficiency under
colder conditions
ƞs % 107 106 108
Seasonal space heating energy efficiency under
warmer conditions
ƞs % 159 169 171
Declared coefficient of performance or primary en
ergy ratio for part load at an indoor temperature of
20 °C and outdoor temperature Tj
Tj = -7 °C COPd - 2.09 1.96 1.99
Tj = +2 °C COPd - 3.22 3.50 3.30
Tj = +7 °C COPd - 4.62 4.90 4.86
Tj = +12 °C COPd - 6.09 6.80 6.35
Tj = bivalent temperature COPd - 2.09 1.96 1.99
Tj = operation limit temperature COPd - 1.28 1.37 1.45
Operation limit temperature for air-to-water heat
pumps
TOL °C -20 -20 -20
Heating water operating limit temperature WTOL °C 60 60 60
Electrical power consumption
Off mode POFF kW 0.015 0.015 0.015
Thermostat-off mode PTO kW 0.015 0.015 0.015
Stand-by PSB kW 0.015 0.015 0.015
Crankcase heater mode PCK kW 0.000 0.000 0.000
Supplementary heater
Rated heat output Psup kW 1.1 1.9 1.6
Type of energy input Electricity Electricity Electricity
Other specifications
Capacity control Variable Variable Variable
Sound power level, indoors - outdoors LWA dB 40 -
58
40 -
58
40 -
60
Annual energy consumption under average con
ditions
QHE kWh 3642 4882 5955
Annual energy consumption under colder condi
tions
QHE kWh 3136 4579 6246
Annual energy consumption under warmer condi
tions
QHE kWh 1791 2587 3017
Rated air flow rate, outdoors for air-to-water heat
pumps
—m3/h 2660 2660 2700
(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
7756241 - v02 - 19062020 MIT-M 13

3.2.5 Sensor specifications
Outdoor temperature sensor specifications
Tab.13 AF60 outdoor temperature sensor
Temperature °C -20 -16 -12 -8 -4 0 4 8 12 16 20 24
Resistance Ω
(Ohm)
2392 2088 1811 1562 1342 1149 984 842 720 616 528 454
Heating flow sensor specifications
Tab.14 NTC heating flow sensor
Temperature °C 0 10 20 25 30 40 50 60 70 80 90
Resistance Ohm 32014 19691 12474 10000 8080 5372 3661 2535 1794 1290 941
Specifications of the heat pump flow and return temperature
sensors
Tab.15 PT1000 temperature sensor
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
3.2.6 Circulating pump
Important
The benchmark for the most efficient circulating pumps is EEI ≤
0.20.
PAvailable pressure (kPa)
DWater flow rate in cubic metres per hour (m3/h)
3Speed 3
4Speed 4
6Speed 6
7Speed 7
8Speed 8
PAvailable pressure (kPa)
DWater flow rate in cubic metres per hour (m3/h)
2Speed 2
3Speed 3
5Speed 5
6Speed 6
7Speed 7
8Speed 8
Fig.4 Variable pressure
MW-1001273-1
15
20
25
30
35
40
45
50
55
60
65
70
75
8
7
6
4
3
P
D
0,0 0,2 0,4 0,6 0,8 1,0 1,2 1,4 1,6 1,8 2,0 2,2 2,4 2,6
Fig.5 Constant pressure
P
D
MW-1001272-1
20
25
30
35
40
45
50
55
60
65
70
75
80
85 8
7
6
3
5
2
0,0 0,2 0,4 0,6 0,8 1,0 1,2 1,4 1,6 1,8 2,0 2,2 2,4 2,6
3 Technical specifications
14 MIT-M 7756241 - v02 - 19062020

3.3 Dimensions and connections
3.3.1 Indoor unit
1Three-way valve circuit return (optional) - G1"
2Three-way valve circuit flow (optional) - G1"
3Direct circuit return - G1"
4Direct circuit flow - G1"
5Return from outdoor unit - G1"
6Flow to the outdoor unit - G1"
1Three-way valve circuit return (optional) - G1"
2Three-way valve circuit flow (optional) - G1"
3Direct circuit return - G1"
4Direct circuit flow - G1"
5Return to the back-up boiler - G1”
6Flow to the back-up boiler - G1”
7Return from outdoor unit - G1"
8Flow to the outdoor unit - G1"
Fig.6 With immersion heater
MW-1001273-1
122
192
262
472
542
52
1003
600
457.5
50 50
1
2
3
4
5
6
858.5
51
510
Fig.7 With back-up boiler connection
MW-1001274-1
122
192
262
332
402
472
542
52
858.5
1003
600
457.5
50 50
1
2
3
4
5
6
7
8
51
510
3 Technical specifications
7756241 - v02 - 19062020 MIT-M 15

3.4 Electrical diagram
MW-1001675-2
7705849
SCB-10
PUMP
EXCHANGER
PUMP CH
PC
SERVICE
PORT
DHW REVERSING VALVE
WATER
SENSORS
7680130
7621783
X13
X12
X2 X3
S2/S3
OUTDOOR
UNIT
7705849
768 0047
X2
91XESU
F
X24
X23
X30
X16
X17
X13
X6
X21
X25
X12
X15
X7
X8
X5
X4
EHC-05
Tdhw (Domestic Hot Water t°)
X27
X1
X26
X10X9
X28
X18
X22
7680294
ON/OFF
FUSE
7680501
7673746
7680005
7680120
7680441
X15
X1
X14
X4
PUMP SPEED
PUMP
POWER SUPPLY
BACKUP 1
BACKUP 2
PUMP
POWER SUPPLY
230V - 50Hz
LOW NOISE
EH812
EH829
FUSE
CB04
EH726
X5
X6
DISCONNECTOR
7680479
X17
+ -
TA
7696851
7
10
11
CN2A
TB142
CNX2 CNX3 CNX4
TB6
S2 S3
BROWN
LN
CN21
CN20
7750947
SENSOR TARGET
OFF
ON
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
SW1
SW2
SW3
OFF
ON
1
2SW6
BLUE
RED
BLACK YELLOW
/GREEN
BLUE
BLUE
BROWN
PAC-IF020-E
7680155
85754935
HM
I
OUTSIDE T° SENSOR
R-BUS (Room Unit) BL1 Multifunction
BL2 Multifunction
So+/So- Energy counter
Condensation sensor
ON/OFF
Harness
N° 7673502
X4
EHC-05
X5
EHC-05
Pump
12
Electric
Backup
Hydraulic
Backup
2-6 kW
230V~
4-8 kW
400V 3N~
4-12 kW
400V 3N~
2 kW
230V~
4 kW
400V 3N~
8 kW
400V 3N~
X4
EHC-05
X5
EHC-05
Boiler
Tab.16 Electrical diagram legend
230V – 50Hz Main power supply for the indoor unit
BACKUP 1 Hydraulic version: Hydraulic back-up pump
Electrical version: Electrical back-up - stage 1
BACKUP 2 Hydraulic version: Hydraulic back-up ON/OFF contact
Electrical version: Electrical back-up - stage 2
BL1 Multifonction BL1 multifunction input
3 Technical specifications
16 MIT-M 7756241 - v02 - 19062020

BL2 Multifonction BL2 multifunction input
Boiler Boiler
CB04 Automatic filling kit
Condensation Sensor Condensation sensor
DISCONNECTOR Disconnector
DHW REVERSING VALVE Heating/domestic hot water reversing valve
EHC–05 Heat pump control system central unit PCB
Electric Backup Electrical back-up
FUSE Fuse
Harness Harness
HMI User interface
HP029 Backup type
HP029=1 1 Electrical Stage
HP029=2 2 Electrical Stages
Hydraulic Backup Hydraulic back-up
LOW NOISE Optional connection cable for Silent mode
ON/OFF On/Off
OUTDOOR UNIT Outdoor unit
OUTSIDE T° SENSOR Outdoor temperature sensor
PAC-IF-020–E PCB (interface with the outdoor unit)
PC SERVICE PORT Service Tool connector
Pump Circulating pump
PUMP CH Direct heating circuit pump
PUMP EXCHANGER Heat pump circulating pump
PUMP POWER SUPPLY Heat pump circulating pump power supply
PUMP SPEED Speed control signal for the heat pump circulating pump
R-BUS (Room unit) SMART TC° connected room thermostat, on/off thermostat or OpenTherm
thermostat of the CIRCA0 direct zone
S2 S3 Bus for communicating with the outdoor unit
SCB-10 PCB for controlling the additional heating and domestic hot water circuits
SENSOR TARGET Water temperature sensor on the plate heat exchanger outlet
So+/So- Energy counter Electrical energy meter
Tdhw (Domestic Hot Water t°) Domestic hot water temperature sensor
WATER SENSORS Temperature sensors
3 Technical specifications
7756241 - v02 - 19062020 MIT-M 17

4 Description of the product
4.1 Main components
1Automatic air vent
2Low-loss header
3Heat pump circulating pump
5Heat pump flow temperature sensor (PT1000)
6Flow meter
7Switching control panel unit
8Electrical diagram
9Safety valve
10 Electronic pressure gauge
11 Expansion vessel
12 Filter
13 Heat pump return temperature sensor (PT1000)
14 Heating circulating pump
15 Electric preheater
16 PCB for controlling the electric preheater
17 Automatic air vent
18 Heating flow temperature sensor
1Automatic air vent
2Low-loss header
3Heat pump circulating pump
5Heat pump flow temperature sensor (PT1000)
6Flow meter
7Switching control panel unit
8Electrical diagram
9Safety valve
10 Electronic pressure gauge
11 Expansion vessel
12 Filter
13 Heat pump return temperature sensor (PT1000)
14 Heating circulating pump
15 Heating flow temperature sensor
Fig.8 With electrical back-up
MW-1001677-1
12
7
8
3
15
17
6
13
5
1
10
9
11
16
14
2
18
Fig.9 With hydraulic back-up
MW-1001676-1
3
6
12
13
5
7
8
1
2
15
10
9
11
14
4 Description of the product
18 MIT-M 7756241 - v02 - 19062020

1CB04 PCB (option): automatic filling kit
2SCB-10 control system PCB: management of circuits A1, B1 and
domestic hot water circuit DHW1
3AD249 PCB (option): management of heat circuit C1 and auxiliary
circuit AUX1
4EHC–05 central unit PCB: control system for the heat pump,
heating circuit A0 and domestic hot water circuit DHW
5PAC-IF-020–E PCB: PCB for interface with the outdoor unit
Fig.10 Position of the PCBs
MW-1001194-2
3
4
5
1
2
4 Description of the product
7756241 - v02 - 19062020 MIT-M 19

5 Installation
5.1 Installation 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.
Pursuant to Article L. 113-3 of the French Consumer Code, the installation
of equipment must be done by a certified operator whenever the
refrigerant load is in excess of two kilograms or when a refrigerant
connection is necessary (the case with split systems, even when fitted with
a quick coupling device).
Regulations for France: residential buildings
Standard DTU 65–16: Installation of heat pumps
Standard DTU 65-17: Hot water radiator heating system
Standard DTU 65-14: Installation of hot water underfloor heating.
Standard DTU 65-11: Safety devices for central heating installations
relating to the building
Set of recommendations: Hot water central heating systems - Book
3114 from the Centre Scientifique et Technique du Bâtiment (Scientific
and Technical Centre for Building).
Local Sanitary Regulations (RSD)
For appliances connected to the electricity network: Standard NF C
15-100 - Low voltage electrical installations.
Regulations for France: establishments open to the general public
Safety regulations against fire and panic in establishments open to the
general public: Articles CH - Heating, ventilation, refrigeration, air
conditioning and production of steam and domestic hot water.
Instructions specific to each type of establishment open to the general
public (hospitals, stores, etc.).
5.2 Standard delivery
Tab.17
Package Contents
Outdoor unit An outdoor unit
A manual
Indoor unit An indoor unit
An outdoor temperature sensor
An accessories bag containing:
hoses,
gaskets
etc.
An installation, user and service manual
An outdoor unit connection manual
A user manual for the outdoor unit spare parts
Terms of warranty
A quick user guide
A list of important points for installation and commissioning
5 Installation
20 MIT-M 7756241 - v02 - 19062020