Metos 4241001, Operating Instructions Manual, Page: 81 / 90

11 • OPERATING AT THE RATED HEAT OUTPUT
CHECKING NOMINAL HEAT CAPACITY
M - P VERSION
- Chamber Burner
C h e c k t h e d e p t h o f t h e s c r e w “ A ” i n
accordance with table 5 of the “Tecnical gas
data” booklet, using a gauge.
Shift the J3 jumper in TEST position - see
picture
Check that the burner fan speed, corresponds
to the data given in table 5 of the “Technical
gas data” booklet.
Set 180 °C convection cooking at low speed
(where applicable), otherwise at normal speed.
Check the speed at position “IGN”, with the J3
jumper in TEST position.
After testing, shift the J3 jumper in the initial
NORM position .
Check the speed on position “MIN”.
Set the normal speed and check the speed at
position “MAX”.
Check the combustion, CO (ppm) and CO
2
(%)
values, with an appropriate instrument:
Start the oven in convection mode at 180°C,
open the door and tape a magnet to the door
switch to close the contact; the oven will restart.
Wait for about 5 minutes.
Position the flue gas collection probe in the flue
gas outlet pipe (chamber and boiler).
The CO
2
must be for:
Natural gas between 9% and 10.5%
L.P.G. between 11% and 13%
The CO must be no greater than 300 ppm
(measured).
Carry out the test in both convection and steam
mode.
If these readings are outside the ranges,
proceed as stated in the technical manual.
For the conversion from natural gas to LPG,
or vice versa, proceed as described in the
technical manual.
Reading in:
D-E = Hz (0-200Hz)
D-F = V
DC
(0-6 V
DC
)
- Boiler Burner
Repeat these operations, setting 100
° C steam
cooking.
16
900-----rev00
C o n v e r s i o n : A s m e n t i o n e d a b o v e , e v e r y a p p l i a n c e i s f a c t o r y s e t t o b u r n t h e t y p e o f g a s
specified, it may become necessary nonetheless to convert the appliance from one type of gas
to another. Therefore, only personnel authorized by the company and belonging to the technical
service who have the corresponding technical handbook can do this work.
A
3
MAX
IGN
MIN
J3
E F D