Ascari MA12 -p. 2 -
1 - Installation ans configuration.................................................................................... p. 03
1.1 - Quick reference guide................................................................................................................ p. 03
1.2 - Install options ............................................................................................................................. p. 04
1.3 - Boiler (serial numbers of 0500151 and over)............................................................................. p. 05
1.4 - Menu options ............................................................................................................................. p. 06
1.5 - Summer / Winter mode ............................................................................................................. p. 07
1.6 - Underfloor heating ..................................................................................................................... p. 07
2 - Installation and Devicing instructions ....................................................................... p. 08
2.1 - Introduction ................................................................................................................................ p. 08
2.2 - Important information................................................................................................................. p. 09
2.3 - Technical specification ............................................................................................................... p. 10
2.4 - Preparation ................................................................................................................................ p. 11
2.4.1 - Opening case ................................................................................................................ p. 11
2.4.2 - Electrical compartment ................................................................................................. p. 12
2.4.3 - Selecting thermal cut-out .............................................................................................. p. 12
2.5 - Installation requirements............................................................................................................ p. 13
2.5.1 - Location......................................................................................................................... p. 13
2.6 - Installation.................................................................................................................................. p. 13
2.6.1 - Main Unit ....................................................................................................................... p. 13
2.6.2 - Plumbing ....................................................................................................................... p. 14
2.6.2.1 - Radiators/Underfloor ...................................................................................... p. 14
2.6.3 - Filling loop..................................................................................................................... p. 15
2.7 - Electrical .................................................................................................................................... p. 16
2.7.1 - Power selection ............................................................................................................. p. 17
2.8 - Commissioning and testing........................................................................................................ p. 17
2.9 - Boiler configuration .................................................................................................................... p. 18
2.9.1 - Automatic / Manual operation ....................................................................................... p. 19
2.10 - Pump speed............................................................................................................................. p. 19
2.11 - Troubleshooting........................................................................................................................ p. 19
2.12 - Servicing .................................................................................................................................. p. 19
2.13 - Dimensions - hydraulic connections ........................................................................................ p. 20
2.14 - Power terminal ......................................................................................................................... p. 21
2.15 - Connection to the electricity .................................................................................................... p. 22
2.16 - Regulation circuit drawing........................................................................................................ p. 23
2.16.1 - Operating from a switched live.................................................................................... p. 23
2.16.2 - Direct room thermostat connections and direct cylinder thermostat ........................... p. 24
2.17 - Control accessories wiring ....................................................................................................... p. 25
2.17.1 - Operating from a switched live.................................................................................... p. 25
2.17.2 - Direct room thermostat connections and direct cylinder thermostat ........................... p. 26
2.18 - Wiring diagrams....................................................................................................................... p. 27
2.19 - 3 Speed water pump ................................................................................................................ p. 29
2.20 - Control pannel description ....................................................................................................... p. 30
2.21 - Regulation settings .................................................................................................................. p. 31
2.22 - Operating ................................................................................................................................. p. 33
2.22.1 - Automatic / Manual operation ..................................................................................... p. 33
2.22.2 - Requested heating temperature setting in manual mode............................................ p. 33
2.22.3 - Summer / Winter shift ................................................................................................. p. 33
2.22.4 - Programming the maximum output setting of the boiler ............................................. p. 34
2.22.5 - Temperatures display .................................................................................................. p. 34
2.23 - Counters .................................................................................................................................. p. 35
2.24 - Failures display ........................................................................................................................ p. 35
2.25 - Maintenance ............................................................................................................................ p. 36
2.26 - Troubleshooting ....................................................................................................................... p. 36
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