4.3.4 Main dimensions ...................................................21
4.4 Positioning the appliance ..................................25
4.4.1 Positioning the boiler on its own ............................25
4.4.2 Fitting the boiler to a DHW tank ............................27
4.4.3 Positioning the boiler to the left or right of a DHW
tank .......................................................................28
4.4.4 Reversing the opening direction of the control panel
door .......................................................................28
4.5 Hydraulic connections .......................................29
4.5.1 Flushing the system ..............................................29
4.5.2 Hydraulic connection of the heating circuit ............30
4.5.3 Hydraulic connection of the water circuit for domestic
use ........................................................................30
4.5.4 Connecting the expansion vessel .........................30
4.5.5 Connecting the condensate discharge pipe ..........31
4.5.6 Filling the siphon ...................................................32
4.6 Gas connection ...................................................32
4.7 Flue gas system connections ............................33
4.7.1 Classification .........................................................34
4.7.2 Lengths of the air/flue gas pipes ...........................35
4.8 Installing the outside sensor .............................36
4.8.1 Choice of the location ............................................36
4.8.2 Connecting the outside sensor ..............................36
4.9 Electrical connections ........................................37
4.9.1 Control unit ............................................................37
4.9.2 Recommendations ................................................38
4.9.3 Access to the connection terminal ........................39
4.9.4 Position of the PCBs .............................................40
4.9.5 Connecting a direct heating circuit ........................41
4.9.6 Connecting a heating circuit and a domestic hot water
tank .......................................................................42
4.9.7 Connecting two circuits and a domestic hot water
tank .......................................................................46
4.9.8 Hot water storage tank connection ........................47
4.9.9 Pool connection .....................................................52
4.9.10 Connecting a mixed tank .......................................53
4.9.11 Connecting the options .........................................55
4.9.12 Connection in cascade ..........................................56
4.10 Electrical diagram ...............................................58
4.11 Filling the system ...............................................59
4.11.1 Water treatment ....................................................59
4.11.2 Filling the system ..................................................60
5 Commissioning ........................................................................................61
5.1 Control panel .......................................................61
5.1.1 Description of the keys ..........................................61
5.1.2 Description of the display ......................................62
5.1.3 Access to the various browsing levels ..................65
Contents
20/01/2012 - 300026081-001-B 2
