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CONTENTS
General information for the Installer, Maintenance Technician and User Page 3
1. Instructions for the User Page 6
1.1 Control panel Page 6
1.2 Operating the boiler Page 7
1.2.1 Switching on Page 7
1.2.2 Operation Page 7
1...3 Boiler shut-down Page 8
1.3.1 Burner shut-down Page 8
1.3.2 Shut-down due to overheating Page 8
1.3.3 Shut-down due to low water pressure Page 8
1.3.4 Shut-down due to incorrect air/ue gas system draught Page 8
1.3.5 Shut-down due to malfunction of temperature probes Page 8
1.4 Maintenance Page 9
1.5 Notes for the User Page 9
2. Technical characteristics and dimensions Page 10
2.1 Technical characteristics Page 10
2.2 Dimensions Page 11
2.3 Hydraulic layouts Page 13
2.4 Operating data Page 14
2.5 General characteristics Page 15
3. Instructions for the Installer Page 16
3.1 Installation Standards Page 16
3.2 Installation Page 16
3.2.1 Packaging Page 16
3.2.2 Choosing where to install the boiler Page 16
3.2.3 Positioning the boiler Page 17
3.2.4 Installing the boiler Page 18
3.2.5 Boiler room ventilation Page 18
3.2.6 Air intake and ue gas discharge system Page 18
3.2.6.1 Natural draught boiler Page 18
3.2.6.2 Forced draught boiler Page 20
3.2.6.2.1 Conguration of air intake and ue gas discharge ducts Page 20
3.2.6.2.2 Air intake and ue gas discharge system via 100/60 mm coaxial pipes Page 21
3.2.6.2.3 Air intake and ue gas discharge system via 80/80 mm split pipes Page 22
3.2.7 Checking combustion efciency Page 23
3.2.7.1 Coaxial pipe system Page 23
3.2.7.2 Split pipe system Page 23
3.2.8 Gas mains connection Page 24
3.2.9 Plumbing connections Page 24
3.2.10 Power mains connection Page 25
3.2.11 Room thermostat connection (optional equipment) Page 25
3.3 Loading the system Page 25
3.4 Starting the boiler Page 26
3.4.1 Preliminary checks Page 26
3.4.2 Switching on and switching off Page 26
3.5 Wiring diagram Page 26
3.6 Adaptation to other gas types and burner adjustment Page 29
4. Testing the boiler Page 30
4.1 Preliminary checks Page 30
4.2 Switching on and switching off Page 30
5. Maintenance Page 31
6. Troubleshooting Page 32
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