TECNOEKA Srl _____________________________________________________________ use and instruction manual
page. 10 __________________________________________________________________________________________
Type A
1
Installation: drawing the comburent air and discharging flue gases directly into the
installation room. This installation requires the working environment to be kept wholesome by
emptying the foul air and drawing fresh air through wall fans or extraction equipment.
Type B
21
Installation: installation required under extraction equipment.
Type B
11
Installation: discharging the flue gases out of the installation room with a draught-
diverter compatible with a vertical tube (diam. 150 mm) making the discharge of the flue gases
into the extraction unit or directly into the building flue easy.
Since flue gases can reach high temperatures, pay particular attention not to overheat any
temperature sensitive elements (extraction equipment filters, electrical cables, etc.).
For the details regarding the installation (for instance minimum sections of ventilation, storing of
the gas canisters, etc.) see the applicable regulations in force in the country of destination. Pay
particular attention so that the volume of air required for the combustion is not obstructed in
any way by objects placed under or around the unit.
The Italian UNI 8723 rule in force since October 2010 ("Gas systems for the hospitality
professional communities and similar") provides the safety requirements on the conformity of
the systems, ventilation and exhaust fumes combustion and baking products. It is valid for the
Italian national territory and the most recent issue or amendments should be consulted.
The type of installation of ovens (A1, B11 or B21) is subject to national rules; for that reason,
the technician in charge must comply with national regulations and then classify the oven by
placing a cross on the box on the data plate (A1-B11-B21).
The classification on the method of the flues depends on the thermal capacity of the device, on
its type, the volume of the room and the type of ventilation present (forced or natural); typically
the sections of inflow air and exhaust fumes / vapor depend, among other things, by the total
thermal load of equipment present in the room (technical area).
Tecnoeka ovens are equipped with a device to let the fumes out fixed on the roof (see Fig. 3); it
acts as a draft diverter / windproof in case of installation B11 provided with direct connection to
the flue by means of a vertical pipe; However, the device is an integral part of the oven, and
should never be removed, regardless of the type of installation.
