2.6 Operation with external probe ................................................................................................................................................................... 64
2.7
Clock and programs .................................................................................................................................................................................... 64
2.8 Settings menu ................................................................................................................................................................................................66
2.9
Indoor Unit Control Panel ...........................................................................................................................................................................69
2.10 System use ......................................................................................................................................................................................................70
2.11 Information menu ........................................................................................................................................................................................71
2.12 Fault and anomaly signals ............................................................................................................................................................................72
2.13 Appliance switch-off ....................................................................................................................................................................................79
2.15 Draining the system .....................................................................................................................................................................................79
2.16 Antifreeze protection ...................................................................................................................................................................................80
2.17 Prolonged inactivity .....................................................................................................................................................................................80
2.18 Cleaning the case ..........................................................................................................................................................................................80
2.19 Permanent shutdown ...................................................................................................................................................................................80
3
3.1
General recommendations ..........................................................................................................................................................................81
3.2
Initial check ...................................................................................................................................................................................................82
3.3
3.4
Hydraulic diagram .......................................................................................................................................................................................87
3.5
Wiring diagram ............................................................................................................................................................................................88
3.6
P.C.B. programming ....................................................................................................................................................................................89
3.7
Troubleshooting ...........................................................................................................................................................................................93
3.8
3.9
Fan speed calibration ...................................................................................................................................................................................95
/O
regulation ........................................................................................................................................................................................96
2
2
3.12 Indoor unit P.C.B. programming ................................................................................................................................................................97
3.14 Automatic vent function (dl) .....................................................................................................................................................................103
3.15 Flue installation (FU) .................................................................................................................................................................................103
3.16 Maintenance function (MA) .....................................................................................................................................................................103
3.17 Screed heater ...............................................................................................................................................................................................104
3.18 Chimney sweep ...........................................................................................................................................................................................105
3.19 Pump anti-block .........................................................................................................................................................................................106
3.20 Three-way anti-block .................................................................................................................................................................................106
3.21 Radiator antifreeze .....................................................................................................................................................................................106
3.22 Ambient antifreeze .....................................................................................................................................................................................106
3.23 Operating logic ...........................................................................................................................................................................................107
3.24 Casing removal ...........................................................................................................................................................................................109
4
Technical data ........................................................................................................................................................................ 113
4.1
Variable heat output ...................................................................................................................................................................................113
4.2 Combustion parameters ............................................................................................................................................................................114
4.3 Indoor unit technical data table ................................................................................................................................................................115
4.4
Outdoor unit technical data table .............................................................................................................................................................116
4.6
3