Bosch 15SBI Service Manual download pdf (Page 7)

The flue system must be installed following the requirements of

BS5440:1.

The standard flue kit length is 425 - 725mm. Extension kits for

flues up to 4m are available.

The terminal must not cause an obstruction nor the combustion

products a nuisance.

If the terminal is within 1m of a plastic or painted gutter or

within 500mm of painted eaves then an aluminium shield at

least 750mm long should be fitted to the underside of the gutter

or painted surface.

If the terminal is less than 2m above a surface to which people

have access then a guard must be fitted. The guard must be

evenly spaced about the terminal and fixed with plated screws.

A guard Type K2 can be obtained from Tower Flue Components,

Vale Rise, Tonbridge, TN9 1TB.

It is essential that products of combustion cannot re-enter the

building. Refer to Fig 4.

A separate vent for combustion air is not required.

If the appliance is in a cupboard or compartment it is not

necessary to have additional ventilation for the boiler

providing that the following clearances are provided:

* Clearance to a removable panel i.e. door.

If the appliance is installed in a cupboard or compartment that

does not allow these clearances then permanent air vents are

required in the compartment, one at a high level and one at a

low level. Both high and low level air vents must communicate

with the same room or must both be on the same wall to the

outside air. The minimum requirements are:

6. Air Supply5. Flue terminal positions

EJF

B,C

Fig. 4. Siting of the flue terminal.

TERMINAL POSITION MIN. DISTANCE TERMINAL POSITION MIN. DISTANCE

A– directly below an openable window or I– From a terminal facing a terminal 1200mm

other opening e.g. air brick. 300mm J– From an opening in a car port (e.g. door

B– Below gutters, soil pipes or drain pipes. 75mm window) into dwelling. 1200mm

C– Below eaves. 25mm K– Vertically from a terminal on the same

D– Below balconies or car port roof. 25mm wall. 1500mm

E– From vertical drain pipes and soil pipes. 25mm L– Horizontally from a terminal on the same

F– From internal or external corners. 25mm wall. 300mm

G– Above ground, roof or balcony level. 300mm M– From door, window or air vent (achieve

H– From a surface facing a terminal. 600mm where possible). 300mm

Above the flue turret 30mm

In front* 250 mm

Below 200mm

Right-hand side 75 mm

Left-hand side 75mm

Model Position of vent Air from room Air from outside

24SBi High 315cm

158cm

Low 315cm

158cm

15SBi High 315cm

158cm

Low 315cm

158cm

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Bosch 15SBI Service Manual Page 7

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