Installation Instructions

SSB 6720818454 (2016/02) US

Installation | 25

4.7.2 Connecting ue gas systems

Optional vent systems are:

• Twin pipe, concentric pipe and 1 pipe using room air

• Approved materials PVC, CPVC, Stainless Steel, PP and PP-Flex

(M&G Duravent PolyPro and Centrotherm InnoFlue)

• Sealed combustion or room air intake

• Terminations can be either horizontal or vertical

• The diameters of the ue outlet and combustion air intake inlet are

designed to t standard PP, PVC, CPVC and stainless steel pipes.

The following table gives the diameter of the ue adapter on the

boiler.

Boiler SSB255 SSB399 SSB512

Diameters 3” - 80mm 4” - 100mm 4” - 100mm

Tab. 3

Insert the exhaust pipe and the air intake pipe as shown in the following

gure:

Fig. 26

Insert the ue exhaust pipe “A” completely into the adapter and tighten

the clamp “B” present in the ue exhaust adapter.

Insert the air intake pipe “C” completely into the adapter and tighten the

clamp “D” present in the air intake adapter.

The correct ow direction into two pipes is shown in Fig. 27.

Fig. 27

4.7.3 Installation of the exhaust and air intake system

NOTICE: Do not extend exposed vent pipe outside the

building beyond recommended distance of 39” or 1 meter.

Condensate could freeze and block vent pipe

Vent should terminate at least 3 feet (915 mm) away from adjacent walls,

inside corners and 5 feet (1525 mm) below roof overhang ( [X2], [X4], see

Fig. 28)