Dear Customer ..........................................................................................................................................................................................................5

General Recommendations .....................................................................................................................................................................................6

Safety symbols used ..................................................................................................................................................................................................7

Personal protective equipment ...............................................................................................................................................................................7

Unit installation ........................................................................................................................................................................ 8

1.1

Installation warnings .....................................................................................................................................................................................8

1.2

Handling the appliance ................................................................................................................................................................................12

1.3

Data nameplate position ..............................................................................................................................................................................12

1.4

Main dimensions ..........................................................................................................................................................................................13

1.5

Minimum installation distances ................................................................................................................................................................14

1.6

Position of the appliances .............................................................................................................................................................................14

1.7

Aeration and Ventilation of the installation rooms ...................................................................................................................................15

1.8

Antifreeze protection ...................................................................................................................................................................................17

1.9

Other Antifreeze functions (Optionals) ....................................................................................................................................................18

1.10 Gas connection .............................................................................................................................................................................................18

1.11 Hydraulic connection ..................................................................................................................................................................................19

1.12 Electrical connection ...................................................................................................................................................................................20

1.13 Commands for heat adjustment (Optional)...............................................................................................................................................23

1.14 Hydraulic settings ........................................................................................................................................................................................28

1.15 Notes and tables in common of wiring diagrams ......................................................................................................................................29

1.16 Hydraulic diagram - one direct zone - one mixed zone - 3-way valve - hydraulic manifold (one appliance) .......................................30

1.17 Wiring diagram - one direct zone - one mixed zone - 3-way valve - hydraulic manifold (one appliance) ............................................31

1.18 Wiring diagram - zone 2 mixed heating - 3-way valve - hydraulic manifold (one appliance) ...............................................................32

1.19 Wiring diagram - zone 2 mixed heating- 3-way valve - without hydraulic manifold (one appliance) .................................................33

1.20 Wiring diagram - two direct heating zones - 3-way valve - hydraulic manifold (one appliance) ..........................................................34

1.21 Wiring diagram - zone 1 direct heating- 3-way valve - hydraulic manifold (one appliance) ................................................................35

1.22 Wiring diagram - direct heating zone (without hydraulic manifold) - 3-way valve - domestic hot water thermostat (one appli-

ance) ...............................................................................................................................................................................................................36

1.23 Wiring diagram - two hydraulic zones with system heating pump - 3-way valve- hydraulic manifold (one appliance) ...................37

1.24 Wiring diagram - two direct heating zones - 3-way valve (without hydraulic manifold) (one appliance) ...........................................38

1.25 Wiring diagram - direct heating zone with booster pump - 3-way valve with spring return - external probe present (OFF) (one

appliance) ......................................................................................................................................................................................................39

1.26 Hydraulic diagram - one direct zone - one mixed zone - DHW pump ................................................................................................... 40

1.27 Wiring diagram - one direct zone - one mixed zone - DHW pump - hydraulic manifold (one appliance) ..........................................41

1.28 Wiring diagram - zone 1 mixed - DHW pump - hydraulic manifold (one appliance) ...........................................................................42

1.29 Wiring diagram - two direct heating zones - DHW pump - OpenTherm thermostats - hydraulic manifold (one appliance) ..........43

1.30 Wiring diagram - zone 1 direct - DHW pump - hydraulic manifold (one appliance) ........................................................................... 44

1.31 Wiring diagram - zone 1 direct - DHW pump - parallel operation - hydraulic manifold (one appliance) ..........................................45

1.32 Wiring diagram - two direct heating zones - DHW pump - CH Request type Constant Setpoint - hydraulic manifold (one appli-

1.33 Wiring diagram - two direct heating zones - DHW pump - CH Request type Only OTC - hydraulic manifold (one appliance) .....47

1.34 Wiring diagram - direct heating zone - booster pump - without hydraulic manifold (one appliance) ................................................48

1.35 Wiring diagram with high power remote control .....................................................................................................................................49

1.36 Wiring diagram connection to BMS system ..............................................................................................................................................50

1.37 Wiring diagram BUS-Cascade connection ...............................................................................................................................................51

1.38 General examples of types of installation of flue systems .........................................................................................................................52

1.39 Immergas flue systems .................................................................................................................................................................................53

1.40 Equivalent lengths of "Green Range" flue system components. ...............................................................................................................54

1.41 Outdoor installation ....................................................................................................................................................................................55

1.42 Cap removal for concentric kit installation ................................................................................................................................................57

1.43 Concentric horizontal kit installation ........................................................................................................................................................57

1.44 Concentric vertical kit installation .............................................................................................................................................................60

1.45 Intake stub pipe kit installation for type B configurations .......................................................................................................................61

1.46 Installation of vertical terminals Ø 100 ......................................................................................................................................................62

1.47 Installation of 100 Ø horizontal terminals ............................................................................................................................................... 64