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Remeha Gas
550/550 Duo
2
TABLE OF CONTENT
Preface 3
1 Boiler description 3
2 Construction details 3
2.1 General 3
2.2 Burners 3
2.3 Assembly 3
3 dimensions and Technical data 4
3.1 Dimensions Remeha Gas 550 4
3.2 Dimensions Remeha Gas 550 Duo 6
4 Application information 7
4.1 L.P.H.W. system 7
4.1.1 Water temperature 7
4.1.2 Water pressure 7
4.1.3 Water flow 7
4.1.4 Water treatment 7
4.1.5 Noise level 8
4.2 Chimneys 8
4.3 Installation standards 8
5 Typical boiler installations 9
5.1 Installation 1 9
5.2 Installation 2 10
6 Control and safety equipment 11
6.1 General 11
6.2 Instrument panel 11
6.3 Standard electronic gas train High/Low 11
6.3.1 Schematic 11
6.3.2 Control panel on gas train 11
6.3.3 Specification control box 11
6.3.4 Specification Ignition transformer 12
6.4 Functions 12
6.4.1 Flame control (lock out) 12
6.4.2 Thermostats (shutdown / lock out) 12
6.4.3 Water level control (lock out) 12
6.4.4 Valve leakage control - optional
( lock out) 12
6.4.5 Gas pressure switch LD - optional
(shut down) 12
6.4.6 Gas pressure switch HD - optional
(lock out) 12
6.4.7 Down draft thermostat;
(optional, shut down) 12
7 Assembly and installation guidelines 13
7.1 General 13
7.2 Boiler assembly 13
7.3 Water connections 13
7.4 Pocket for the thermostat capillaries 13
7.5 Water pressure 13
8 Gas supply 13
8.1 General 13
8.2 Gas pressure 13
8.3 Injectors 13
9 Electrical supply 14
9.1 General 14
9.2 Instrument panel 14
9.3 Control panel 14
9.4 Electrical connections 14
9.5 Electrical information 14
9.6 Water level control 14
9.7 Wiring diagrams 15
10 Commissioning 16
10.1 Switching off the boiler 18
11 Maintenance 18
12 Trouble shooting 19
12.1 Fault causes 19