Installation Guide

EN
20
Installation
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INFO If the gas flame goes out, is excessively affected
by the extractor and/or the flame is not as it
should be (e.g. soot production, flame blowback,
etc.), the return flow aperture must be enlarged.
4.4.4 Special assembly instructions for gas
cooktop CKG
 Please note the local regulations and connection
requirements applicable to gas cooktops.
 Before connecting the appliance, check that the
appliance settings comply with local connection
requirements (gas type and pressure).
INFO Minimum requirement for operating gas cooktop
CKG: System software 03.00 (or higher)
 If necessary, retrieve the installed software version
(see operating instructions, Menu chapter, Retrieving
the software version).
 Update the system software if necessary (see
operating instructions, Menu chapter, Updating the
system software).
INFO Minimum clearance of 650 mm between the
worktop and wall unit in the case of gas devices.
INFO On recirculation systems, a return flow aperture
of at least 1,000 cm² must be provided for each
air cleaning unit.
INFO Ensure sufficient ventilation.
INFO Taking into account the applicable valid
regulations, the cooktop must be connected to
the gas line with an upstream stopcock.
INFO The gas supply pipe can be connected after the
ga s cooktop has been installed.
INFO The hose connection must be laid in such a way
that it is not subject to deformation, buckling or
abrasion.
INFO The stopcock and gas supply pipe connections
must be accessible.
INFO It must be possible to inspect the entire length of
the hose line once installed.
INFO Only compatible connection pieces are to be used
for the hose line.
INFO The pressure regulator must correspond to the
set gas type and set gas pressure and must meet
local and legal requirements.
INFO The gas connection hose line must not come into
contact with smoke or the flue outlet of an oven.
4.4.3 Recirculation when using the cooktop
extractor as a recirculation system
In the case of recirculation systems there must be a
return flow aperture in the kitchen units:

> 500 cm² (per air cleaning box) in combination with
cooktops CKFI, CKI, CKIW, CKCH, CKCB and CKT

> 1000 cm² (per air cleaning box) in combination with
gas cooktop CKG
INFO If several extractor systems are operated in
recirculation mode, the return flow aperture
for each air cleaning box must be calculated
correspondingly.
Example:
2 recirculation systems = 2 x (> 500 cm²) or
2 x (> 1,000 cm²) in the case of gas appliances
For recirculation, the necessary return flow aperture can
be created using a shortened plinth. A slatted plinth with
at least the minimum opening cross-section can also be
used.
 Ensure that the return flow aperture is large enough.
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1 32
Fig. 4.4 Recirculation design example (kitchen is land +
cooktop + CKA2 + air cleaning unit)
[1] Cooktop
[2] Cooktop extractor CKA2 (recirculation)
[3] Air cleaning unit (ULB1, ULB3, ULBF)
[4] BORA plinth fan EC (ULS)
[5] Recirculation return flow aperture
 (Totalopeningcrosssectionperaircleaningunit≥500 cm²
or≥1000 cm² in the case of gas cooktop CKG)