Baxi AWHP 22 TR-2 Manual

MW-1001234-1
MW-
1001234-1
en
Installation and Service Manual
Reversible air/water "Split Inverter" heat pump
Platinum BC iMax
iHPI/E 22-27

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 Symbols used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.1 Symbols used in the manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
2.2 Symbols used on the appliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.3 Symbols used on the data plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3 Technical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.1 Homologations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.1.1 Directives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
3.1.2 Factory test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.2 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
3.2.1 Heat pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.2.2 Heat pump weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.2.3 Combination heaters with medium-temperature heat pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.2.4 Sensor specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
3.2.5 Circulating pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.3 Dimensions and connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.3.1 AWHP 22 TR–2 and AWHP 27 TR-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
3.3.2 Indoor module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.4 Electrical diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4 Description of the product . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.1 Operating principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.2 Main components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.3 Standard delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5 Connecting diagrams and configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
5.1 Connecting a swimming pool . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
6 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
6.1 Installation regulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
6.1.1 Data Plates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
6.2 Respecting the distance between the indoor module and the outdoor unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
6.3 Positioning the indoor module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
6.3.1 Allowing sufficient space for the indoor module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
6.3.2 Fitting the assembly rail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
6.3.3 Mounting the module on the wall . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
6.4 Putting the outdoor unit in place . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
6.4.1 Allowing sufficient space for the outdoor unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
6.4.2 Selecting the location of the outdoor unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
6.4.3 Choosing the location of a noise abatement screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
6.4.4 Selecting the location of the outdoor unit in cold and snowy regions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
6.4.5 Installing the outdoor unit on the ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
6.5 Hydraulic connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
6.5.1 Special precautions for the connection of the heating circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
6.5.2 Connecting the heating circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
6.5.3 Connecting the safety valve drain pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
6.6 Refrigeration connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
6.6.1 Preparing the refrigerant connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
6.6.2 Connect the refrigerant connections to the indoor module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
6.6.3 Connecting the refrigerant connections to the outdoor unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
6.6.4 Adding the necessary quantity of refrigerant fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
6.6.5 Test the leak-tightness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
6.6.6 Evacuation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Contents
2 iHPI 7701563 - v02 - 22052018

6.6.7 Opening the valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
6.7 Electrical connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
6.7.1 Recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
6.7.2 Recommended cable cross section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
6.7.3 Routing the cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
6.7.4 Description of the connection terminal blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
6.7.5 Accessing the PCBs and connection terminal block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
6.7.6 Connecting the cables to the PCBs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
6.7.7 Electrically connecting the outdoor unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
6.7.8 Connecting the outdoor unit bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
6.7.9 Fitting the outdoor sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
6.7.10 Connecting the outdoor sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
6.7.11 Accessing the indoor module terminal blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
6.8 Connecting options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
6.8.1 Connecting an on/off or modulating thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
6.8.2 Connecting a thermostat with heating/cooling contact . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
6.9 Filling the installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
6.9.1 Treatment of the heating water . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
6.9.2 Filling the heating circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
7 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
7.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
7.2 Checklist before commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
7.2.1 Checking the heating circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
7.2.2 Checking the electrical connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
7.2.3 Checking the refrigeration circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
7.3 Commissioning procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
7.3.1 CNF configuration numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
7.3.2 Start-up cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
7.4 Final instructions for commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
8 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
8.1 Use of the control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
8.1.1 Control panel description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
8.1.2 Browsing in the menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
8.1.3 Description of the PCBs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53
8.2 Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
8.3 Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
8.3.1 Switching off the heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
9 Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
9.1 Modifying the installer parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
9.1.1 Installer menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
9.1.2 Installer \ CIRCA0 menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
9.1.3 Installer \DHW menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57
9.1.4 Installer \ CIRCA1 \ CIRCB1 \ DWH1 \ CIRCC1 \ CIRCAUX1 menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58
9.1.5 Installer \EHC–05 and SCB-10 menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
9.2 COUNTERS, TIME PROG, CLOCK menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
9.2.1 COUNTERS, TIME PROG, CLOCK \CNT menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
9.2.2 COUNTERS, TIME PROG, CLOCK \ DHW, CIRCA0 , CIRCA1, CIRCB1, DHW1, CIRCC1, CIRCAUX1
menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
9.2.3 COUNTERS, TIME PROG, CLOCK \CLK menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
9.3 Description of the parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72
9.3.1 Running the back-up in heating mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72
9.3.2 Running the back-up in domestic hot water mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73
9.3.3 Operation of the switch between heating and production of domestic hot water . . . . . . . . . . . . . . . . . . . . . .73
9.4 Setting the parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
9.4.1 Language selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
9.4.2 Selecting the type of outdoor unit and the type of back-up (CN1 et CN2) . . . . . . . . . . . . . . . . . . . . . . . . . . .75
9.4.3 Setting the heating curve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75
9.4.4 Improving domestic hot water comfort . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .76
9.4.5 Improving heating comfort . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
9.4.6 Configuring the estimated electrical energy consumption function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
9.4.7 Configuring a hydraulic back-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
9.4.8 Configuring a convection fan or underfloor cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Contents
7701563 - v02 - 22052018 iHPI 3

9.4.9 Screed drying with the aid of the heat pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
9.4.10 Drying screed without the heat pump outdoor unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
9.4.11 Setting the parameters for using photovoltaic energy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
9.4.12 Connecting the installation to a Smart Grid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
9.4.13 Detecting an additional or replacement PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .82
9.5 Reading out measured values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
9.5.1 List of measured values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .82
9.5.2 Control system sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
10 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
10.1 Standard inspection and maintenance operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
10.1.1 Checking the safety components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .89
10.1.2 Check the hydraulic pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
10.1.3 Cleaning the casing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
10.2 Checking operation of the appliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .90
10.3 Specific maintenance operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
10.3.1 Draining the heating circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
10.3.2 Cleaning the 500-µm filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
10.3.3 Replacing the battery in the control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
11 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .92
11.1 Resetting the safety thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
11.2 Error messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .92
11.2.1 EHC–05 error codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
11.2.2 SCB-10 error codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
11.2.3 EHC–05 fault codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
11.2.4 EHC–05 alarm codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .96
11.2.5 SCB-10 alarm codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
11.3 Accessing the error memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
12 Decommissioning and disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .99
12.1 Decommissioning procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .99
12.2 Disposal and recycling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Contents
4 iHPI 7701563 - v02 - 22052018

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 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 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
7701563 - v02 - 22052018 iHPI 5

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. To drain, open the tap at the base of the tank.
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
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 circuit cables.
1 Safety instructions and recommendations
6 iHPI 7701563 - v02 - 22052018

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
refrigerant fluid.
Store the refrigerant connection pipes away from dust and
humidity (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
components may cause damage.
Contact between the refrigerant fluid and a flame may result in
emissions of toxic gases.
All work on the refrigeration circuit must be done by a qualified
professional, 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
located 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.
In order to limit the risk of being scalded, a thermostatic mixing valve must
be installed on the domestic hot water flow pipes.
1 Safety instructions and recommendations
7701563 - v02 - 22052018 iHPI 7

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.
Fit drainage valves between the indoor module 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.
1.7 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
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.
1.8 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
indoor unit and the electrical back-up if present.
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.
1 Safety instructions and recommendations
8 iHPI 7701563 - v02 - 22052018

The user must make sure the refrigerant pipes are checked annually for
leaks for any heat pump with a charge greater than 5 tonnes of CO2
equivalent.
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.
1 Safety instructions and recommendations
7701563 - v02 - 22052018 iHPI 9

2 Symbols used
2.1 Symbols used in the manual
This manual uses various danger levels to draw attention to special
instructions. We do this to improve user safety, to prevent problems and to
guarantee correct operation of the appliance.
Danger
Risk of dangerous situations that may result in serious personal
injury.
Danger of electric shock
Risk of electric shock.
Warning
Risk of dangerous situations that may result in minor personal
injury.
Caution
Risk of material damage.
Important
Please note: important information.
See
Reference to other manuals or pages in this manual.
2.2 Symbols used on the appliance
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 CIRCA0 heating circuit flow
2 CIRCA0 heating circuit return
3 CIRCB1 heating circuit flow
4 CIRCB1 heating circuit return
5Refrigeration fluid connection - liquid line
6Refrigeration fluid connection - gas line
7Safety extra-low voltage power supply cable
8Power supply cable 230 V / 400 V
9Power cord 230 V
2.3 Symbols used on the data plate
1Information concerning the heat pump: refrigerant type, maximum
allowable operating pressure
2The symbol indicates compatibility with the Mago connected
thermostat.
3Information on the electrical back-up: power supply and maximum
output
4Before installing and commissioning the appliance, carefully read
the instruction manuals provided
5Dispose of used products in an appropriate recovery and recycling
structure
Fig.1
1 2
M002628-A
Fig.2
MW-1001193-1
A A
1
B
3
6
2
B
4
7
9
8
5
Fig.3
MW-1001191-2
1 2 3
4 5
2 Symbols used
10 iHPI 7701563 - v02 - 22052018

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 standard: 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
Tightness of the refrigerant circuit
3.2 Technical data
3.2.1 Heat pump
The specifications are valid for a new appliance with clean heat
exchangers.
Maximum operating pressure: 0.3 MPa (3 bar)
Tab.1 Conditions of use
AWHP 22 TR–2 AWHP 27 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 +7 °C / +25 °C +7 °C / +25 °C
Limit outdoor air operating temperatures in cooling mode +7 °C/+46 °C +7 °C/+46 °C
3 Technical specifications
7701563 - v02 - 22052018 iHPI 11

Tab.2 Heating mode: outside air temperature +7 °C, water temperature at the outlet +35 °C. Performances in accordance
with EN 14511-2.
Measurement type Unit AWHP 22 TR–2 AWHP 27 TR-2
Heat output kW 21.70 24.40
Coefficient of Performance (COP) 3.96 3.80
Absorbed electrical power kWe 5.48 6.25
Nominal water flow rate (ΔT = 5 K) m3/hour 3.8 4.2
Tab.3 Heating mode: outside air temperature +2 °C, water temperature at the outlet +35 °C. Performances in accordance
with EN 14511-2.
Measurement type Unit AWHP 22 TR–2 AWHP 27 TR-2
Heat output kW 16.11 14.70
Coefficient of Performance (COP) 3.13 3.13
Absorbed electrical power kWe 5.14 4.70
Tab.4 Cooling mode: outside air temperature +35 °C, water temperature at the outlet +18 °C. Performances in accordance
with EN 14511-2.
Measurement type Unit AWHP 22 TR–2 AWHP 27 TR-2
Cooling output kW 17.65 22.20
Energy efficiency ratio (EER) 3.80 3.80
Absorbed electrical power kWe 4.65 5.84
Tab.5 Common specifications
Measurement type Unit AWHP 22 TR–2 AWHP 27 TR-2
Nominal air flow rate m3/h 8400 8400
Power supply voltage of the outdoor unit V 400 400
Start-up amperage A
Maximal amperage A 19 21
Acoustic power - Inside (1) dB(A) 43.4 43.4
Acoustic power - Outside(2) dB(A) 77 77
Refrigerant fluid R410A kg 7.1 7.7
R410A refrigerant(3) tCO2e 14.821 16.074
Refrigerant connection (Liquid - Gas) inch 3/8 - 3/4(4) or 3/8 - 1 1/2 - 3/4(4) or 1/2 - 1
Max. pre-charged length m 20 20
(1) Noise radiated by the envelope - Test run in accordance with the NF EN 12102 standard, temperature conditions: air 7 °C, water 55 °C
(2) Noise radiated by the envelope - Test run in accordance with the NF EN 12102 standard, temperature conditions: air 7 °C, water 45 °C
for AWHP 4.5 MR only (inner and outer sides).
(3) Quantity of refrigerant calculated in tonnes of CO2 equivalent
(4) Warning: the refrigerant connection lengths are limited to 20 m with the 3/4"gas pipe
Important
R410A refrigerant fluid is contained in equipment that has been
hermetically sealed.
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
3 Technical specifications
12 iHPI 7701563 - v02 - 22052018

Tab.6 Indoor module
Indoor module Unit iHPI/E 22-27
Net weight kg 66
Gross weight kg 77
Tab.7 Outdoor unit
Outdoor unit Unit AWHP 22 TR–2 AWHP 27 TR-2
Weight (empty) kg 135 141
3.2.3 Combination heaters with medium-temperature heat
pump
Tab.8 Technical parameters for heat pump combination heaters (parameters declared for medium-temperature application)
Product name iHPI
AWHP 22 TR–2
iHPI
AWHP 27 TR-2
Air-to-water heat pump Yes Yes
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 Yes Yes
Rated heat output under average conditions(1)
Prated kW 11 14
Rated heat output under colder conditions Prated kW 12 14
Rated heat output under warmer conditions Prated kW 18 20
Declared capacity for heating for part load at an indoor temperature of
20°C and outdoor temperature Tj
Tj = -7°C Pdh kW 10.3 12.5
Tj = +2°C Pdh kW 10.0 8.9
Tj = +7°C Pdh kW 5.8 11.8
Tj = +12°C Pdh kW 6.9 18.1
Tj = bivalent temperature Pdh kW 10.9 12.5
Tj = operation limit temperature Pdh kW 10.9 14.1
Bivalent temperature Tbiv °C -10 -7
Degradation coefficient(2)
Cdh — 1.0 1.0
Seasonal space heating energy efficiency under average conditions ƞs % 114 112
Seasonal space heating energy efficiency under colder conditions ƞs % 111 103
Seasonal space heating energy efficiency under warmer conditions ƞs % 143 141
Declared coefficient of performance or primary energy ratio for part
load at an indoor temperature of 20°C and outdoor temperature Tj
Tj = -7°C COPd - 1.95 1.67
Tj = +2°C COPd - 2.80 2.86
Tj = +7°C COPd - 3.76 4.12
Tj = +12°C COPd - 4.85 5.06
Tj = bivalent temperature COPd - 1.64 1.20
Tj = operation limit temperature COPd - 1.64 1.20
Operation limit temperature for air-to-water heat pumps TOL °C -10 -10
Heating water operating limit temperature WTOL °C 60 60
Electrical power consumption
Off mode POFF kW 0.010 0.014
Thermostat-off mode PTO kW 0.049 0.023
3 Technical specifications
7701563 - v02 - 22052018 iHPI 13

Product name iHPI
AWHP 22 TR–2
iHPI
AWHP 27 TR-2
Stand-by PSB kW 0.016 0.023
Crankcase heater mode PCK kW 0.055 0.055
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 LWA dB 43 _ 77 43 _ 77
Annual energy consumption under average conditions QHE kWh 7681 9993
Annual energy consumption under colder conditions QHE kWh 10578 13164
Annual energy consumption under warmer conditions QHE kWh 10025 11541
Rated air flow rate, outdoors for air-to-water heat pumps — m3/h 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.
3.2.4 Sensor specifications
Outside sensor specifications
Tab.9 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.10 Flow sensor
Temperature in
°C
0 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.11 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 Technical specifications
14 iHPI 7701563 - v02 - 22052018

3.2.5 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
7701563 - v02 - 22052018 iHPI 15

3.3 Dimensions and connections
3.3.1 AWHP 22 TR–2 and AWHP 27 TR-2
Fig.6
MW-M002629-1
1338
1050
40
56
26
342
A
225
330 370
417
30
600 225 19
28
60 42
(1)
(2)
2
1
A450 mm: AWHP 22 TR–2
424 mm: AWHP 27 TR-2
13/8" flare refrigerant fluid connection (AWHP 22 TR–
2)
1/2" flare refrigerant fluid connection (AWHP 27
TR-2)
23/4" flare refrigerant gas fitting
3 Technical specifications
16 iHPI 7701563 - v02 - 22052018

3.3.2 Indoor module
1Three-way valve circuit return (optional) - G1"
2Three-way valve circuit flow (optional) - G1"
3Direct circuit return - G1"
4Direct circuit flow - G1"
53/4" refrigerant fluid connection - gas line
61/2" refrigerant fluid connection - liquid line
3.4 Electrical diagram
MW-1001139-2
7705849
Fig.7
MW-1001180-1
122
192
262
472
542
52
51
858.5
1003
600
457.5
50 50
454
1
2
3
4
5
6
3 Technical specifications
7701563 - v02 - 22052018 iHPI 17

Tab.12 Electrical diagram legend
230V~ Power supply
DHW 3 WAY VALVE DHW Domestic hot water tank three-way valve
BL1 MULTIFUNCTION BL1 multifunction
BL2 MULTIFUNCTION BL2 multifunction
CONDENSATE SENSOR Condensation sensor for underfloor heating
CB04 Automatic filling kit
EHC–05 Heat pump control system central unit PCB
DISCONNECTOR Disconnector
ELECTRICAL BACKUP Electrical back-up
FUSE Fuse
HPC–01 PCB: interface for the outdoor unit
HYDRAULIC BACKUP Hydraulic back-up
OUTDOOR UNIT Outdoor unit
OUTSIDE TEMPERATURE SENSOR Outdoor temperature sensor
PC SERVICE PORT Service Tool connector
PUMP CH Heating circulating pump
PUMP EXCHANGER Heating circulating pump
ROOM UNIT Room thermostat
SCB-10 PCB for controlling the additional heating and domestic hot water circuits
SENSOR LIQUID Exchanger refrigerant temperature sensor
SENSOR TARGET Water temperature sensor on the exchanger outlet
SO+/SO- ENERGY COUNTER SO+/SO- energy meter
WATER SENSORS Temperature sensors
3 Technical specifications
18 iHPI 7701563 - v02 - 22052018

4 Description of the product
4.1 Operating principle
The outdoor unit produces heat or cold and transfers it to the indoor
module via the refrigerant in the plate exchanger.
The indoor module is equipped 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
With electrical back-up
1Automatic air vent
2Low-loss header
3Heating circulating pump
4Plate heat exchanger
5Heat pump flow temperature sensor
6Flow meter
7Switching control panel unit
8Electrical diagram
9Safety valve
10 Electronic pressure gauge
11 Expansion vessel
12 Valve and 500 µm filter
13 Heat pump return temperature sensor
14 Heating circulating pump
15 Electric preheater
16 PCB for controlling the electric preheater
17 Automatic air vent
18 Heating flow temperature sensor
Position of the PCBs
Marker PCB Function
1CB04 optional PCB Filling kit
2SCB-10 PCB Additional heating and domestic hot
water circuits
3EHC–05 central unit PCB Control system for the heat pump,
first heating circuit and domestic
hot water
4HPC–01 PCB Interface PCB for the outdoor unit
4.3 Standard delivery
Delivery includes several packages:
Fig.8
MW-1001189-2
3
15
17
4
6
12
13
5
7
8
1
10
9
11
16
14
2
18
Fig.9
MW-1001194-1
2
3
4
1
4 Description of the product
7701563 - v02 - 22052018 iHPI 19

Tab.13
Package Contents
Outdoor unit An outdoor unit
A manual
Indoor module An indoor module
An installation and service manual
A user guide
An accessories bag containing:
One outside sensor
One mechanical pressure gauge with a T fitting
4 Description of the product
20 iHPI 7701563 - v02 - 22052018