Rational SCC Line, Training Manual

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S
S
C C
Mode: Combi Steam 141-300°C
(286-572°F), set temp.
Function step
Select Wet and Dry heat
(Temp 141-300°C (286-572°F))
Select time or core temperature
Close cabinet door
Check water level inside steam genera-
tor
Preheat steam generator,
if B5 is below 85°C (185°F);
Timer starts after successful preheating
Heat up cabinet with Hot Air until set
temperature.
Priority Hot Air
Adding of steam up to set steam satura-
tion
Quenching (set to 70°C/158°F)
Responsible sensor
Reed switch S3
Level electrode S2 in-
side Steam Generator
Thermocouple B5 inside
Steam Generator
Logic on PCB
Cabinet sensor B1
Pressure sensor P1
Thermocouple B4
rpm motor via BUS
Thermocouple B2
Signal
Door open: 12VDC X27:(1-2)
Door closed: 0VDC X27:(1-2)
X12:(1-4) > 2VAC => no water
X12:(1-4) ~ 0VAC => water
SSR active: 12VDC X24:(1-2)+(5-6)
SSR not active: 0VDC X24:(1-2)+(5-6)
Gas unit:
Bus signal
SSR active: 12VDC X24:(7-8)+(3-4)
SSR not active: 0VDC X24:(7-8)+(3-4)
Gas unit:
Bus signal
SSR active: 12VDC X24:(1-2)+(5-6)
SSR not active: 0VDC X24:(1-2)+(5-6)
Gas unit:
Bus signal
B2 above set Temp.: Y2 active
B2 below set Temp.: Y2 not active
Remark
Solenoid Y1 energizes when
no water, 230VAC, X19:(1-4)
Heating off,
if B5 > 180°C (356°F)
Blinking dot on timer display
Y2 act.: 230VAC, X19:(2-5)
Y2 not act.: 0VAC, X19:(2-5)
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Note:
Steam heating only active when humidity fl ap (S4) is in closed position!
SCC Units: Sequence of Events
Additional functions possible: 4 Fan speeds (Standard = Level 4), pulsed fan wheel,
½ Energy, HACCP output, ∆T, manual moistening