Immergas 3.018921, Instruction And Warning Booklet

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INDEX
1 Boiler installation ......................................4
1.1 Installation recommendations. ................4
1.2 Main dimensions. ......................................5
1.3 Connections (OPTIONAL). ....................5
1.4 Remote controls and room chrono-
thermostats (Optional). ............................6
1.5 External probe (Optional). ......................7
1.6 Ventilation of the rooms. .........................7
1.7 Flue ducts. ..................................................7
1.8 Flues/Chimneys. ........................................7
1.9 System filling. .............................................8
1.10 Gas system start-up. ..................................8
1.11 Boiler start-up (ignition). .........................8
1.12 Circulation pump. .....................................8
1.13 Kits available on request. ..........................8
1.14 Boiler components. ...................................9
2 Instructions for use and maintenance ..10
2.1 Cleaning and maintenance. ...................10
2.2 Ventilation of the rooms.........................10
2.3 General warnings. ...................................10
2.4 Control panel. ..........................................10
2.5 Ignition of the boiler. ..............................11
2.6 Troubleshooting. .....................................11
2.7 Boiler shutdown ......................................12
2.8 Restoring central heating system
pressure. ....................................................12
2.9 System draining. ......................................12
2.10 Anti-freeze protection. ..........................12
2.11 Case cleaning. ..........................................12
2.12 Decommissioning. ..................................12
3 Boiler start-up (initial check) ................13
3.1 Hydraulic diagram. .................................13
3.2 Wiring diagram. ......................................14
3.3 Troubleshooting. .....................................14
3.4 Converting the boiler to other
types of gas. ..............................................15
3.5 Checks following conversion to
another type of gas. .................................15
3.6 Possible adjustments of the gas valve. ..15
3.7 Programming the P.C.B. .........................16
3.8 Automatic slow ignition function
with timed ramp delivery. ......................17
3.9 “Chimney sweep function” ....................17
3.10 Pump anti-block function. .....................17
3.11 three-way anti-block function. ..............17
3.12 Radiators anti-freeze function. ..............17
3.13 P.C.B. periodical self-check. ...................17
3.14 Yearly appliance check and
maintenance. ............................................17
3.15 Casing removal. .......................................18
3.16 Heat output. .............................................18
3.17 Combustion parameters. ........................19
3.18 Technical data. .........................................19
3.19 Key for Data plate. ...................................20
USER
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INSTALLER
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MAINTENANCE TECHNICIAN
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