Servicehandbuch OEB/OES/OGB/OGS
2.5.5b Regeneration in units with direct injection (OES/OGS)
= active in this cooking programme
= not active in this programme
= can be active
1 = Pr
essure 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 = Pressure regulator
14 = Manometer
15 = Pressure switch (water)
16 = Reducer nozzle
17 = Water injection distributor
18 = Injection nozzle
B3 = Condenser temperature probe
B5 = Bypass temperature probe
B6 = Oven temperature probe
B10 = Core temperature probe
Y1 = Solenoid valve "condenser cooling "
Y2 = Solenoid valve " demoisturizing "
Y4 = Solenoid valve direct injection
i
Information:
Regeneration is similar to Superheated steaming, a combination of water injection,
steam generation and steam superheating via the hot surface of 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 selecting the programme, the convection heating 11 is activated via the
contactors K4, K41, K42, K6, K61 and K62 (as far as available), in gas units the
convection burner 6 is activated via the automatic firing N20 / N22, until the oven
probe B6 reports reaching the adjusted nominal temperature to the electronic
circuitry.
Parallel to this to control the injection via the solenoid valve Y4, the bypass
temperature probe B5 on the end of the "bypass pipe" 5 is employed.
After the cooking programme is started, the optimal bypass nominal temperature is
regulated and the solenoid valve Y4 (water injection) remains switched on until the
bypass temperature probe B5 reaches its selected value. The moisture levels can
be adjusted in the Service programme c10.
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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