User’s Manual
4
16.1.2.
External cleaning of heat exchanger
.......................................................................................................................................... 38
16.1.3.
Internal cleaning (washing) of heat exchanger
....................................................................................................................... 38
16.1.4.
Internal cleaning (washing) of secondary heat exchanger
................................................................................................... 38
16.2.
Boiler’s operation check
..................................................................................................................................................................... 38
16.2.1.
Check of gas system' s, heating systems' and DHW air-tightness of the boiler............................................................................. 39
16.2.2.
Check of safety devices operation
............................................................................................................................................... 39
16.2.2.1.
Check of heat carrier pressure sensor in the heating system ......................................................................................................... 39
16.2.2.2.
Check of heat carrier overheating protection in the heating system
................................................................................. 39
16.2.2.3.
Check of bypass valve operation
................................................................................................................................................. 39
16.2.2.4.
Checking of safety valve operation
............................................................................................................................................. 39
16.2.2.5.
Air removal valve check
................................................................................................................................................................ 39
16.2.2.6.
Check of gas supply regulator operation
.................................................................................................................................. 39
16.2.2.7.
Ionization plug check
..................................................................................................................................................................... 39
16.2.2.8.
Check of combustion products removal control devices
....................................................................................................... 40
16.2.2.9.
Check of CHtemperature sensor
................................................................................................................................................ 40
16.2.2.10.
Check of DHW circuit temperature sensor
......................................................................................................................... 40
16.2.2.11.
Check of water flow sensor in the
DHW circuit
....................................................................................................................... 40
16.2.2.12.
Check of air pressure in the expansion tank
....................................................................................................................... 40
16.2.3.
Check of the air inlet and combuction products output systems’ air-tightness
.............................................................. 40
16.2.4.
Check of water consumption in DHW
....................................................................................................................................... 41
16.2.5.
Check of heating system’s contamination
................................................................................................................................ 41
17.
BOILER’S DISASSEMBLING AND DISMANTLING OF MAIN BLOCKS
..................................................................... 41
17.1.
Burner block dismantling
.................................................................................................................................................................. 41
17.2.
Primary heat exchanger dismantling .................................................................................................................................................... 42
17.3.
Pump dismantling
............................................................................................................................................................................... 43
17.4.
Secondary heat exchanger dismantling ................................................................................................................................................ 44
17.5.
3 way valve disassembling ....................................................................................................................................................................... 45
17.6.
Bypass valve dismantling ....................................................................................................................................................................... 45
17.7.
Expansion tank disassembling ................................................................................................................................................................ 46
18.
UTILIZATION
..................................................................................................................................................................................... 46
19.
WARRANTY LIABILITIES
............................................................................................................................................................ 47
20.
................................................................................................................................................................................................................... 48
21.
................................................................................................................................................................................................................... 48
22.
................................................................................................................................................................................................................... 49
23.
SUPPLY PACKAGE ............................................................................................................................................................................... 50
Annex I. Components catalogue ........................................................................................................................................................................... 53
Annex II. Membrane expansion tank selection directions ................................................................................................................................. 64
Annex III. Electric circuit diagrams of the boiler ............................................................................................................................................... 66
................................................................................................................................................................................................................................. 70
Summary of Contents for NEVALUX-8230
Page 35: ...Assembly is performed in reverse order Scheme 23 Heat exchanger dismantling...
Page 41: ...48...
Page 47: ...Ignition and ionization plugs in the assembly pos 67...
Page 54: ......
Page 55: ......
