STEAM.MAXI™
UNOX STEAM.Maxi™ technology carries out every
type of steaming process, even the most delicate
ones starting from a temperature of 35 °C (95 °F).
This result is possible thanks to a production of steam
that is up to 3 times superior to that obtained with
traditional direct injection ovens when using the
same amount of water.
The result is identical to, if not even better, than that
obtained when using a boiler combi oven.
Open loop system
In case of Humidity Measurement parameter
set to OFF, the oven works with an open loop
control system: the value of STEAM.Maxi
TM
set by
the user corresponds to the amount of relative
humidity reported on Table 7:
Table 7
Correlation of STEAM.Maxi™ set point and the
value with which the oven works
STEAM.Maxi
TM
setting
STEAM.Maxi
TM
setting
0 30
10 30
20 40
30 40
40 50
50 50
60 60
70 70
80 80
90 90
100 100
EV2
EV1
■ During the first production of steam (as speci-fied
below in the chapter STEAM.Maxi
TM
set to
);
■
If Tsp < 7
0 °C (158 °F) or T
sp > 2
00°
C (392 °F) (T
sp =
Se
t
Point Temperature);
■ Pu
l
s
e mode
■
If DRY
.Maxi™ i
s set to 100%
:
■ If STEAM.Maxi™ is set to 0% and
ADAPTIVE.Cooking™ is OFF
During the preheating step, any washing
programs, the humidity calibration and the fumes
tests;
■
■ If the oven triggers the error WF04.
Figure 4
Solenoid valves to produce steam
The solenoid valve EV1 is the first one to be activated
in order to have the valve body with the smallest
flow rate activated for a longer time. This avoids a
repetitive closing and opening of the second
solenoid valve.
The water solenoid valves are activated according to
14 steam tables.
Note:
In all the conditions listed below the oven always
works with an open loop control system:
Each oven is equipped with one double solenoid
valve to produce steam. The valve is supplied at 230
V AC and consists of two different valve bodies, as
shown in Figure 4, (EV1, lowest water flow rate and
EV2, highest water flow rate) which allow to adjust
the water flow rate according to the climate
conditions of the cooking chamber.
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