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TABLE OF CONTENTS
SAFETY INSTRUCTIONS ........................................................................................................................................................................ 2
TABLE OF CONTENTS ........................................................................................................................................................................... 5
1 - INSTALLATION - CODE REQUIREMENTS ......................................................................................................................................... 7
1.1 - National installation legislation ............................................................................................................................................... 7
2 - GENERAL INFORMATION .................................................................................................................................................................. 8
2.1 - Introduction .............................................................................................................................................................................. 8
2.2 - Manufacturer ............................................................................................................................................................................ 8
2.3 - Key to symbols used ............................................................................................................................................................... 8
2.4 - Description of models ............................................................................................................................................................. 8
3 - MAIN COMPONENTS ........................................................................................................................................................................ 9
4 - FUNCTION OVERVIEW ................................................................................................................................................................... 11
4.1 - Intended use and functions of the boiler ...............................................................................................................................13
4.2 - Setting of the boiler ................................................................................................................................................................13
4.3 - A smart and intelligent boiler .................................................................................................................................................14
4.4 - Characteristic curves of heating system’s residual head .................................................................................................... 15
4.5 - Boiler head loss curve ........................................................................................................................................................... 15
4.6 - Characteristic curve of the domestic side ............................................................................................................................. 15
5 - INSTALLATION - Mounting & gas and water connections ..........................................................................................................16
5.1 - Clearances for installation and servicing for models ........................................................................................................... 16
5.2 - Clearances from combustible material ................................................................................................................................16
5.3 - Choosing the installation location for 45WN and 45AN models .......................................................................................... 16
5.4 - Choosing the installation location for 45WE and 45AE models .......................................................................................... 17
5.5 - Mounting the boiler ................................................................................................................................................................ 18
5.5 - Mounting the casing in a 45WE or 45AE boiler ......................................................................................................... 18
5.6 - Gas and water connections ..................................................................................................................................................18
5.7 - Condensate disposal ............................................................................................................................................................ 19
5.8 - Relief valve ............................................................................................................................................................................. 19
5.9 - Supply and return piping ....................................................................................................................................................... 20
5.10 - Low temperature heating systems .....................................................................................................................................20
5.11 - Use of glycol and other chemicals ......................................................................................................................................20
5.12 - Domestic hot and cold water (only for 45WN and 45WE models) ..................................................................................... 20
5.13 - Gas supply piping ................................................................................................................................................................21
5.14 - Operating at high altitudes ..................................................................................................................................................21
5.15 - Suggested piping and wiring connections for the 45WN and 45WE versions Boiler ....................................................... 22
5.16 - Suggested piping and wiring connections for the 45AN and 45AE versions Boiler .......................................................... 23
6 - INSTALLATION - Electrical connections ....................................................................................................................................... 24
6.1 - Electrical connections: overview ........................................................................................................................................... 24
6.2 - Connecting the power supply cable ...................................................................................................................................... 25
6.3 - Choosing the room thermostat .............................................................................................................................................25
6.4 - Thermostat wiring .................................................................................................................................................................. 25
6.5 - Installing the outdoor temperature sensor (optional) ........................................................................................................... 26
6.6 - Wiring the circulator pump for 45AN and 45AE models ......................................................................
................................. 26
6.7 - Alarm output ...........................................................................................................................................................................26
6.8 - Installing the remote command on 45WE and 45AE models .............................................................................................. 27
7 - INSTALLATION - Indirect storage tank connections ...................................................................................................................28
7.1 - Connecting the boiler to an indirect storage tank ................................................................................................................. 28
8 - INSTALLATION - Vent & combustion air ....................................................................................................................................... 30
8.1 - Removing of a boiler from a common venting system .........................................................................................................30
8.2 - Venting systems .................................................................................................................................................................... 31
8.3 - Design of the venting system ................................................................................................................................................31
9 - INSTALLATION - Split 80/80PP venting system ............................................................................................................................32
9.1 - “Split 80/80PP” system (polypropylene) or AL29-4C (UL 1738/UL C 636) system .............................................................. 32
9.2 - “Split 80/80PP” system components ................................................................................................................................... 34
9.3 - “Split 80/80PP” system: installation examples .....................................................................................................................35
10 - INSTALLATION - Coaxial 60/100PP venting system .................................................................................................................. 36
10.1 - “Coaxial 60/100PP” polypropylene system ........................................................................................................................36
10.2 - “Coaxial 60/100 PP” system components .......................................................................................................................... 37
10.3 - “Coaxial 60/100PP” system: installation examples ......................................................................................................... 38
11 - OPERATING ...................................................................................................................................................................................39
11.1 - Operating ............................................................................................................................................................................. 39
11.1.1 - User instructions ................................................................................................................................................... 39
11.1.2 - Filling the condensate trap .................................................................................................................................... 39
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