Convotherm OEB Series User Manual

Service Handbook OEB/OES/OGB/OGS
2.5 Functioning of the cooking programmes
2.5.1a Steaming at 100°C 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
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Information:
When steaming, the oven 3 is heated only by means of the water evaporated in the
steam generator 17.
i
The steam generator heating 13 / steam generator burner 14 are controlled by the oven
temperature probe B6 and the bypass probe B5.
In electric units, the immersion heating element 13 in the steam generator 17 remains
activated via the contactors K1, K2 and K3 until both the probes B5 and B6 have reached
their nominal temperatures. After further operation, steam heating 13 is activated when the
temperature at the end of the bypass pipe 5 falls below the nominal value (Service
programme c07) (steam requirement via the bypass temperature probe B5).
In gas units, the blow burner 14 in the steam generator is ignited via the automatic firing
N21 and remains on until both the probes B5 and B6 have reached their nominal
temperatures. After further operation, the steam generator burner 14 switches on when
the temperature at the end of the bypass pipe falls under the nominal temperature
(Service programme c07) (steam requirement via the bypass temperature probe B5).
The motor 12 runs continuously in reverse operation in Steaming via the contactors K5
and K50.
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_01e_Steaming at 100°C_b

Convotherm OEB Series Specifications

General

Brand	Convotherm
Model	OEB Series
Category	Commercial Food Equipment
Language	English