Coltene SciCan BRAVO G4, Техническое и сервисное руководство, Страница: 17 / 116

Sterilizers Bravo G4
- TECHNICAL MANUAL
EN FUNCTIONING
15
With PRE-HEATING active and closed door, solenoid valve EV5 is activated.
PRE-HEATING
- component activation status
ST
AT
U
S
EV1
High drain
(N.O.)
EV2
Air inlet
(N.C.)
EV3
Low drain
(N.C.)
EV4
Drain
deflector
(3V)
EV5
Chamber
air inlet
(N.C.)
FA
NS
W
AT
ER
PU
MP
- EV6
VA
CUUM
PU
MP
C
H
AMBER
T
U
BE
BUNDL
E
HE
AT
ING
EL
EMEN
T
G
EN
ER
AT
O
R
HE
AT
ING
EL
EMEN
T
OFF
Off
open
Off
closed
Off
closed
Off (0)
Off
closed
OFF OFF OFF OFF OFF
ON
door open
Off
open
Off
closed
Off
closed
Off (0)
Off
closed
OFF OFF OFF ON OFF
ON
door
closed
Off
open
Off
closed
Off
closed
Off (0)
On
open
OFF OFF OFF ON OFF
4.2. WARM UP
With the door closed, select and activate a sterilization cycle chosen among the 6 available cycles; the door is locked
and the WARM UP phase is activated.
During this phase the following components are heated up:
- Chamber by means of the tube bundle heating element.
- Generator by means of the heating element.
The following temperature values are observed:
- Tube bundle heating element
- Generator heating element
- Chamber inside
> PT3 temperature detection - 135°C (275°F)
> PT2 temperature detection - 155°C (311°F)
> PT1 temperature detection - 55°C (131°F)
The achievement of the values listed above determines the start of the following phase - 1st VACUUM PHASE.
The WARM UP phase is divided into 2 sections:
- Section 1 active until PT3 temperature is detected= 135°C (275°F)
- Section 2 active until PT2 temperature is detected= 155°C (311°F)
During WARM UP section 2, the following components are activated:
- Vacuum pump
- Solenoid valve EV2 (air inlet)
- Solenoid valve EV4 (vacuum pump deflection)
which allow reaching the full operation of the pump, draining, at the same time, any condensate from the pipes.
WARM UP -
component activation status
ST
AT
U
S
EV1
High drain
(N.O.)
EV2
Air inlet
(N.C.)
EV3
Low drain
(N.C.)
EV4
Drain
deflector
(3V)
EV5
Chamber
air inlet
(N.C.)
FAN
W
AT
ER
PU
MP
–
EV6
VA
CUUM
PU
MP
C
H
AMBER
TUB
E B
UNDL
E
HE
AT
ING
EL
EMEN
T
G
ENE
RA
TO
R
HE
AT
ING
EL
EMEN
T
Section
1
On
closed
Off
closed
Off
closed
Off (0)
On
open
OFF OFF OFF ON ON
Section
2
Off
open
On
open
Off
closed
On (1)
Off
closed
ON OFF ON ON OFF