Ariston PK 741 RQO GH AG Operating Instructions Manual page 4

There is an adjustable L-shaped pipe fitting on the
GB
appliance supply ramp and this is fitted with a seal in
order to prevent leaks. The seal must always be replaced
after rotating the pipe fitting (seal provided with
appliance). The gas supply pipe fitting is a threaded 1/2
gas cylindrical male attachment.
Connecting a flexible jointless stainless steel pipe to a
threaded attachment
The gas supply pipe fitting is a threaded 1/2 gas
cylindrical male attachment.
These pipes must be installed so that they are never
longer than 2000 mm when fully extended. Once
connection has been carried out, make sure that the
flexible metal pipe does not touch any moving parts and
is not compressed.
! Only use pipes and seals that comply with current
national regulations.
Checking the tightness of the connection
! When the installation process is complete, check the
pipe fittings for leaks using a soapy solution. Never use a
flame.
Adapting to different types of gas
To adapt the hob to a different type of gas other than
default type (indicated on the rating plate at the base of
the hob or on the packaging), the burner nozzles should
be replaced as follows:
1. Remove the hob grids and slide the burners off their
seats.
2. Unscrew the nozzles using a 7 mm socket spanner,
and replace them with nozzles for the new type of gas
(see table 1 "Burner and nozzle characteristics").
3. Reassemble the parts following the above procedure in
the reverse order.
4. Once this procedure is finished, replace the old rating
sticker with one indicating the new type of gas used.
Sticker are available from any of our Service Centres.
Replacing the nozzles on separate "double flame "
burners:
1. remove the grids and slide the burners from their
housings. The burner consists of 2 separate parts (see
figure);
2. unscrew the burers with a 7 mm wrench spanner. The
internal burner has a nozzle, the external burner has
two (of the same size). Replace the nozzle with models
suited to the new type of gas (see table 1).
3. replace all the components by repeating the steps in
reverse order.
4
• Adjusting the burners' primary air :
Does not require adjusting.
• Setting the burners to minimum:
1. Turn the tap to the low flame position.
2. Remove the knob and adjust the adjustment screw,
which is positioned in or next to the tap pin, until the
flame is small but steady.
! In the event of single-control DRDA (DCDR) burners,
adjustment can be performed by intervening on the 2
screws located near the tap pin (see picture).
3. Having adjusted the flame to the required low setting,
while the burner is alight, quickly change the position of
the knob from minimum to maximum and vice versa
several times, checking that the flame does not go out.
4. Some appliances have a safety device (thermocouple)
fitted. If the device fails to work when the burners are
set to the low flame setting, increase this low flame
setting using the adjusting screw.
5. Once the adjustment has been made, replace the seals
on the by-passes using sealing wax or a similar
substance.
6. In the event of discrete-adjustment knobs with
LED visualisation, turn the knob to the minimum
power setting them remove it and intervene on the
adjustment screw located near the tap pin.
7. Minimum setting adjustment of the DRDA (DCDR)
burner with discrete adjustment and LED
visualisation:
• To adjust the outer ring, turn the knob anti-
clockwise to the minimum power position.
• To adjust the minimum power setting of the
inner ring, turn the knob clockwise to the minimum
power position.
• Remove the knob and intervene on the
adjustment screw located near the tap pin.
Total DRDA
(DCDR) burner
adjustment
Inner DRDA (DCDR)
burner adjustment