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2
remeha Gas 3c ECO
CONTENTS
Preface 2
1. Boiler description 3
2. Construction 3
2.1 General 3
2.2 The burners 3
2.3 Boiler floor 3
2.4 Assembly 3
3. Boiler efficiency 3
3.1 General 3
3.2 Condensation 3
4. Technical data and dimensions 4
5. Application 5
5.1 L.P.H.W. system 5
5.1.1 Water temperature 5
5.1.2 Water pressure 5
5.1.3 Water flow 5
5.1.4 Water treatment 5
5.2 Noise level 5
5.3 Chimney/Flues 5
5.3.1 General 5
5.3.2 Fan 5
5.3.3 Safety equipment 5
6. Typical boiler installations 6
7. Control and safety equipment 7
7.1 General 7
7.2 Instrument panel 7
7.3 Standard electronic gas train 8
7.3.1 Specification 8
7.3.2 Control panel on gas train 8
7.4 Functions 8
7.4.1 Flame protection (lock out) 8
7.4.2 Thermostats 8
7.4.3 Air-pressure switch (lock out) 8
8. Assembly and installation guidelines 9
8.1 General 9
8.2 Boiler assembly 9
8.3 Water connections 9
8.4 Pocket for instrument panel 9
8.5 Water pressure 9
8.6 Condensate drain 9
9. Gas supply 9
9.1 General 9
9.2 Gas pressure 9
10. Electric supply 10
10.1 General 10
10.2 Control panel 10
10.3 Electrical connections 10
10.4 Electrical data 10
10.5 Wiring diagram for the instrument panel 10
10.5.1 Simple instrument panel 10
10.5.2 Complete instrument panel 11
10.6 Wiring diagram boiler 12
10.6.1 Complete wiring diagram for boiler
with simple instrument panel 12
10.6.2 Complete wiring diagram for boiler
with complete instrument panel 13
11. Commisioning 14
11.1 Technical information 14
11.2 Commissioning 14
11.3 Switch off the boiler 14
12. Maintenance 15
12.1 General 15
12.2 Maintenance instructions 15
PREFACE
These technical instructions contain useful and important
information for the correct operation and maintenance of
the remeha Gas 3c ECO gas boiler.
Furthermore, important instructions are given to prevent
accidents and serious damage before commissiong and
during operation of the boiler, to ensure safe and trouble-
free operation. Read these instructions carefully before
putting the boiler into operation, familiarize yourself with
its operation and controls and strictly observe the instruc-
tions given. If you have any questions, or if you need more informa-
tion about specific subjects relating to this boiler, please
do not hesitate to contact us.
The data published in these technical instructions is ba-
sed on the latest information and is given subject to later
revisions.
We reserve the right to modify the design and/or
configuration of our products at any moment, without
being obliged to adjust earlier supplies accordingly.