2
4 205 254 / 03
Table of contents
1.
Important Information .......................................................................................................... 4
1.1
Symbols ................................................................................................................................................... 4
1.2
Guarantee ................................................................................................................................................ 4
1.3
Other instructions ................................................................................................................................... 4
1.4
Safety instructions .................................................................................................................................. 4
1.5
Regulations, official approvals .............................................................................................................. 5
1.6
Transport and storage ............................................................................................................................ 5
2.
Technical details .................................................................................................................. 6
2.1
Technical Data ......................................................................................................................................... 6
2.2
Dimensions .............................................................................................................................................. 7
2.3
Boiler flow resistance ............................................................................................................................. 8
2.4
Short description of the automatic firing unit BIC 335 ........................................................................ 8
2.5
Control of the boiler ................................................................................................................................ 9
2.6
Adjustable parameters ......................................................................................................................... 11
3.
Installation .......................................................................................................................... 13
3.1
Description of the Hoval TopGas
®
....................................................................................................... 13
3.1.1
Diaphragm expansion tank...................................................................................................................... 13
3.1.2
Boiler casing ............................................................................................................................................ 13
3.1.3
Gas fittings .............................................................................................................................................. 13
3.1.4
Automatic gas firing unit and heating controller ...................................................................................... 13
3.1.5
Heating circulation pump ......................................................................................................................... 13
3.1.6
Hot water supply ..................................................................................................................................... 13
3.1.7
Scope of supply ....................................................................................................................................... 13
3.1.8
TopGas
®
component designation ............................................................................................................ 14
3.2
Boiler installation room ........................................................................................................................ 15
3.3
Installing the boiler ............................................................................................................................... 15
3.4
Hydraulic connection ............................................................................................................................ 15
3.4.1
Protection planning guidelines for the hydraulic connection ................................................................... 15
3.4.2
Boil-dry safeguard ................................................................................................................................... 15
3.4.3
Gravity brake ........................................................................................................................................... 15
3.4.4
Minimum flow rate ................................................................................................................................... 15
3.4.5
To be provided by customer .................................................................................................................... 16
3.4.6
Hydraulic interconnection ........................................................................................................................ 16
3.5
Flue gas connection, chimney and condensate pipeline .................................................................. 17
3.5.1
Waste gas pipelines in compliance with building construction law .......................................................... 17
3.5.2
Project planning guidelines for exhaust gas systems .............................................................................. 17
3.5.3
Installation examples for room-air-dependent operation ......................................................................... 18
3.5.4
Exhaust gas system for room-air-independent operation........................................................................ 19
3.5.5
Attic heating center ................................................................................................................................. 19
3.5.6
Wall penetration ...................................................................................................................................... 19
3.5.7
Connection of pipelines ........................................................................................................................... 20
3.5.8
Condensate draining and neutralisation .................................................................................................. 20
3.5.9
Gas connection ....................................................................................................................................... 20
3.6
Electrical connection ............................................................................................................................ 20
3.6.1
Electrical connection regulations............................................................................................................. 20
3.6.2
Electrical connection (grid) 230 V, 50 Hz................................................................................................. 21
3.6.3
Boiler control / electrical connection diagram .......................................................................................... 21
3.6.4
Connection of the heating controller ....................................................................................................... 21
3.6.4.1
TopTronic
®
RS-OT ......................................................................................................................................................21
3.6.4.2
TopTronic
®
T/N ...........................................................................................................................................................21
