CONTENTS
Remeha Gas 450
2
Preface 3
1. Boiler description 3
2. Constructions 3
2.1 General 3
2.2 Burners 3
2.3 Boiler floor 3
2.4 Delivery 3
3. Technical information and dimensions 4
4. Application 5
4.1 L.P.H.W. system 5
4.1.1 Water temperature 5
4.1.2 Water pressure 5
4.1.3 Water flow 5
4.1.4 Water treatment 5
4.1.5 Noise level 5
4.2 Chimneys 5
5. Typical boiler installations 6
6. Regulation and safety equipement 7
6.1 General 7
6.2 Instrument panel 7
6.3 Standard electronic gas train High/Low 7
6.3.1 Schematic 7
6.3.2 Specification 7
6.3.3 Control panel behind front panel 7
6.4 Functions 7
6.4.1 Flame protection 7
6.4.2 Down draught thermostat 7
6.4.3 Thermostats 7
7. Assembly and installation guidelines 8
7.1 General 8
7.2 Boiler assembly 8
7.3 Water connections 8
7.4 Pocket for instrument panel 8
7.5 Water pressure 8
8. Gas supply 8
8.1 General 8
8.2 Gas pressure 8
9. Electrical supply 8
9.1 General 8
9.2 Control panel 8
9.3 Electrical connections 8
9.4 Electrical data 8
9.5 Wiring diagram boiler 9
10. Commissioning 10
10.1 Technical information 10
10.2 Commissioning the boiler 10
10.3 Switching off the boiler 10
11. Maintenance 11
11.1 General 11
11.2 Maintaining the boiler 11