User`s manual

INDEX
INSTALLER page
USER page
TECHNICIAN page
Immergas S.p.A. declines any responsibility for printing or transcription errors, and reserves the right to make
any changes to its technical and commercial lists without prior notice.
1 Biler installation ....................................................................................................................................... 3
1.1 Warnings. ................................................................................................................................................ 3
1.2 Main dimensions. .................................................................................................................................... 3
1.3 Connection unit (supplied standard with the boiler). ............................................................................... 4
1.4 Installing air intake and flue exhaust terminals. ...................................................................................... 5
1.5 Flue exhaust via flues. .......................................................................................................................... 13
1.6 Ducting flues. ........................................................................................................................................ 14
1.7 Chimneys/flues. .................................................................................................................................... 14
1.8 System filling. ........................................................................................................................................ 14
1.9 Gas system start-up. ............................................................................................................................. 14
1.10 Boiler start-up (ignition). ........................................................................................................................ 15
1.11 Circulating pump. .................................................................................................................................. 15
1.12 Domestic hot water boiler...................................................................................................................... 16
1.13 Kits available on request. ...................................................................................................................... 16
1.14 Zeus Maior boiler components.............................................................................................................. 17
2 Uuse and maintenance instructions ...................................................................................................... 18
2.1 Free preliminary testing. ....................................................................................................................... 18
2.2 Cleaning and Maintenance. .................................................................................................................. 18
2.3 General Warnings. ................................................................................................................................ 18
2.4 Zeus Maior - Control panel. .................................................................................................................. 18
2.5 Restore heating system pressure. ........................................................................................................ 19
2.6 Draining the system. ............................................................................................................................. 19
2.7 Boiler emptying. .................................................................................................................................... 19
2.8 Anti-freeze protection. ........................................................................................................................... 19
2.9 Casing cleaning. ................................................................................................................................... 19
2.10 Decommissioning.................................................................................................................................. 19
3 Boiler start-up preliminary check........................................................................................................... 20
3.1 Zeus Maior wiring diagram.................................................................................................................... 20
3.2 Zeus Maior hydraulic diagram............................................................................................................... 21
3.3 Troubleshooting. ................................................................................................................................... 21
3.4 Converting the boiler to other types of gas. .......................................................................................... 22
3.5 Checks following conversion to other type of gas. ................................................................................ 22
3.6 Zeus Maior adjustments........................................................................................................................ 22
3.7 Zeus Maior slow ignition adjustment. .................................................................................................... 22
3.8 Pump antiblock function. ....................................................................................................................... 23
3.9 Boiler antifreeze function. ..................................................................................................................... 23
3.10 Casing removal. .................................................................................................................................... 24
3.11 Yearly appliance control and service. ................................................................................................... 25
3.12 Zeus 21 Maior series variable heat output. ........................................................................................... 26
3.13 Zeus 24 Maior series variable heat output. ........................................................................................... 26
3.14 Zeus 21 Maior technical data. ............................................................................................................... 27
3.15 Zeus 24 Maior series technical data. .................................................................................................... 28