Connecting Flue Gas Accessories - Bosch ZBR16-3A Series Installation And Service Instructions Manual

▶ Screw the LWCO as far as possible into LWCO adapter located in the
boiler accessory kit. Follow the Hydrolevel Safgard 1100
instructions.
Fig. 24 Installing a LWCO device - LWCO adapter
▶ Push the adapter with the LWCO onto the pipe (step 1) and secure
with the clip (step 2).
1
Fig. 25 Installing a LWCO device – securing with a clip
▶ Connect the wires of the LWCO ( chapter 7.4, page 50).
The LWCO is positioned upright for technical reasons.
Tests have shown that all air will bleed from the pipe
during commissioning and full functionality is
established.
If fault d3 is displayed when commissioning the boiler,
purge the boiler properly and check the boiler water
pressure.
6.8

Connecting flue gas accessories

Optional vent systems are:
• Twin pipe PVC / CPVC 2" / 3"
• Twin pipe PP 2" (50 mm )/ 3" (80 mm) (M&G Duravent PolyPro and
Centrotherm InnoFlue)
• Concentric PP 3" / 5" (80/125 mm) (Bosch)
Greenstar
6 720 641 933-64.1O
Ø
1
Ø > Ø
1 2
Ø
2
2
6 720 641 933-65.3O
In case of using the twin pipe adaptor:
The twin pipe adaptor is supplied with the boiler kit as
standard and is certified as a part of the vent system.
▶ Install the vent flange and gasket with the screws enclosed.
2
1
Fig. 26 Attaching the vent flange and gasket
[1] Gasket
[2] Vent flange
[3] Screws
▶ Insert the flue gas adapter as far as it will go into the vent flange and
align it.
2
1
Fig. 27 Flue gas adapter
[1] Vent flange
[2] Flue gas adapter
[3] Combustion air test port
[4] Flue gas test ports
▶ Tighten the screws.
To avoid premature wear of the gaskets DO NOT use
lubricants.
Installation | 37
3
6 720 612 737-01.1O
3
4
6 720 641 933-85.1O
6 720 806 992 (2015/03)