Flue Gas Connection Type A3 And B23 - Rational iCombi Pro Original Installation Instructions

11 | Flue gas connection for gas devices
The combustion air supply is ensured via two ventilation openings into the
open air, each with a free cross-section of 150 m
the ceiling, one near the floor).
Ventilation and air conditioning systems
Kitchens in which gas devices with a total nominal heat load of more than 50
kW are installed must be ventilated with ventilation and air conditioning sys-
tems. These ventilation and air conditioning systems also ensure the combus-
tion air supply for the gas device if the ventilation and air conditioning system
is designed in accordance with VDI 2052.

11.2 Flue gas connection type A3 and B23

Requirements for device size 6 half size GN
The flue gas connection type A3 for this device size corresponds to a room
n
air-dependent gas fireplace with a fan upstream of the burners without
flow protection and with a total nominal load in the installation area of less
than or equal to 14 kW.
To avoid a fire hazard due to grease in the grease filter, a distance of 400
n
mm [15.75 inch] must be maintained between the flue gas pipes of the de-
vice and the grease filters of the extractor hood/ventilation ceiling.
It is not mandatory that the gas supply to the burners is only released
n
when the extraction system is in operation.
An up-current socket is not required.
n
For the installation of gas device with a type A flue gas connection with a
n
total rated load of less than or equal to 14 kW, it is sufficient if the installa-
tion site meets one of the following criteria:
– The installation area has a volume of more than 2 m
– The installation area has a door to the outside or a window that can be
– A kitchen ventilation system is operated which has a minimum deliv-
72 / 84
kW].
opened.
ery volume of 15 m
corresponding supply air openings are provided.
3
/h [529.72 ft³/h] per kW total rated load and
80.06.083_iCombi Pro-iCombi Classic_IM_V01_en-US
3
[9153561.62 in³] (one near
3
/kW [70.63 ft³/