Servicehandbuch OEB/OES/OGB/OGS
2.5 Functioning of the cooking programmes
2.5.5a Regeneration in units with steam generator (OEB/OGB)
= active in this cooking programme
= not active in this cooking programme
= can be active
1 = Pressure compensation valve
2 = Fan wheel
3 = Oven chamber
4 = Steam and air circulation
5 = Bypass pipe
6 = Convection heat exchanger
7 = Demoisturizing tub
8 = Hydraulic seal in condenser
9 = Demoisturizing nozzle
10 = Condenser cooling
11 = Convection heating
12 = Fan motor
13 = Steam generator heating
14 = Steam generator heat exchanger
15 = Back flow protection
16 = Water level probe
17 = Steam generator
B1 = Water level probe
B3 = Condenser temperature probe
B4 = Steam generator temperature probe
B5 = Bypass temperature probe
B6 = Oven temperature probe
B10 = Core temperature probe
Y1 = Solenoid valve "condenser cooling"
Y2 = Solenoid valve " demoisturizing "
Y3 = Solenoid valve steam generator
i
Information:
Similar to Superheated steaming, regenerating consists of a combination of feeding
steam into the oven and superheating the steam with the convection heating 11 /
convection heat exchanger 6. In Regeneration, the goal for an optimal oven climate
dependent on the bypass sensitivity to the unit load is self determined.
After regenerating is started, the steam generator heating 13 / steam generator burner 14
is activated and the unit regulates automatically the optimal bypass temerature for
regenerating (range 55 - 90°C). The steam generator heating 13 /steam generator burner
14 remain activated until the bypass temperature probe B5 at the end of the bypass pipe
5 has reached the nominal temperature. In this programme, the convection heating 11 /
convection burner 6 can be switched on for a short period of time, even though the
regulated bypass set value is not yet reached. The moisture levels can be adjusted in the
Service programme c10.
After reaching the bypass selected temperature, the convection heating 11 / convection
burner 6 heat until the oven temperature probe B6 reports reaching the preselected oven
temperature to the electronic circuitry.
The fan motor 12 runs continuously in this programme via the contactors K5 and K50 in
reverse.
The programme is stopped automatically when the time or the pre-set CTC (Core
temperature probe B10 ) temperature is reached.
AS/11-2011 2_05_05e_Regeneration_c
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