Control Of Drain Valve - Rational SelfCookingCenter SCC Training Manual

Control of drain valve

When switching on the SCC unit the drain valve automatically starts to rotate and to find its correct open end
position. (position for cooking).
A: Position for cooking
Drain valve with motor and limit switch
CleanJet Pump
Waste water from quenching box
CleanJet solution from quenching box
Drain of the unit
CleanJet solution to cooking cabinet
A
2
B: Only during CleanJet and Care in certain process steps the drain valve will be closed
(position CleanJet and Care)
6
B
2
In function test it is possible to rotate the drain valve manually clockwise or anti clockwise. This can be necessary
if the drain valve is jammed.
1
0
If the open position is not found, „Service 26" will be indicated and coking is not possible.
(ref Function test).
During a Cleanjet process the drain valve will close.
If the closed position is not found, „Service 27" will be indicated (ref Function test).
Follow the error tree.
V08 en, SCC
3
1
4
1
The drain valve is in open position, when the micro switch S12 changes
from 0 to 1 when opening in function mode.
The drain valve is in closed position, when the micro switch S12 changes
from 0 to 1 when closing in function mode.
The time interval of the drain valve in diagnostic mode is in the ration of
1:3, e.g. 9 / 27 sec. or 6 / 18 sec.
5
- 58 -