Rational CombiMaster CM Manuel d'utilisateur télécharger pdf (Page 48)

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Mode: Wet heat (98-103°C (208-218°F),

set temperature)

Function step

Select Wet heat

(Temp 98-103°C (208-218°F))

Select time or core temperature

Close cabinet door

Check water level inside steam

generator

Preheat steam generator,

if B5 is below 85°C (185°F);

Timer starts after successful preheating

Steam production up to saturation in

cabinet

Adding of Hot Air from 70°C (158°F)

possible, if 70% humidity reached

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

Pressure sensor P1

Thermocouple B4

rpm motor via BUS

Cabinet sensor B1

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:(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

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

Decision of Hot Air supply by

PCB logic

Y2 act.: 230VAC, X19:(2-5)

Y2 not act.: 0VAC, X19:(2-5)

Additional functions possible: 4 Fan speeds (Standard = Level 4), pulsed fan wheel,

½ Energy, HACCP output, ∆T

Note:

Steam heating only active when humidity ﬂ ap (S4) is in closed position!

SCC Units: Sequence of Events

1 2 ... 43 44 45 46 47 48 49 50 51 52 53 ... 185 186

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Rational CombiMaster CM Manuel d'utilisateur Page 48

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