Mocom B CLASSIC - Page 25

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EN
TECHNICAL MANUAL - B CLASSIC / B FUTURA / S CLASSIC
ALARMS
LCD E 900 Indication Alarm description Effect / Symptom
TEST FAILED
Vacuum test failed during TEST
PHASE – 5min.
Pressure rise in chamber too fast (p2 - p3) / 10 >
0.13 kPa/min (1.3 mbar/min).
Possible causes / Checks Solution
Problem with door gasket
sealing – check gasket.
Clean gasket and steel ledge thoroughly, reset alarm and repeat one test cycle.
Clean gasket seating surface in cap.
Check for residue on inside face of gasket lip.
Check cap adjustment and re-adjust as required.
Check door cap.
Problem with reinforced
tube sealing – check tubes
and connections.
For all reinforced tubes connected to chamber, steam generator, manifold unit, check:
- Condition of reinforced tubes at connection point, checking for correct tube position
on tting.
- Stainless steel clamp is in place and tightened properly.
To check for proper sealing, you may start a test cycle from menu SERVICE/TEST
CYCLES/NO VACUUM SQ22, that will pressurize the system omitting the pre-vacuum
phases.
Possible causes / Checks Solution
Problem with Teon tube
sealing - check tubes and
connections.
For Teon tubes connected to pressure transducer and safety pressure switch, check:
- Proper fastening of tubes to ttings at chamber rear end and to the 2 components.
- Condition of Teon tube on tting, under locking ring nut.
Tighten properly, if needed, after cutting off the end of the Teon tube that was locked
under the ring nut.
To check for proper sealing, you may start a test cycle from menu SERVICE/TEST
CYCLES/NO VACUUM SQ22, that will pressurize the system omitting the pre-vacuum
phases.
Problem with Manifold
solenoid valve sealing -
check for proper sealing.
For solenoid valves EV1 – EV3 – EV5, check:
- cursor and seat for proper closing, condition and cleanliness.
To check for proper sealing, it might be a good idea to test the individual solenoid
valves from menu SERVICE/COMPONENT TEST/SOLENOID VALVES – OTHER
COMPONENTS SQ 12/SQ 13, that lets you actuate the individual solenoid valves to
conrm that they close properly.
Problem with steam
generator sealing – check
for proper sealing.
Check the condition of the reinforced tubes connected to the generator and their
stainless steel clamps.
Check for proper sealing at the coupling between outer body/inner core of generator.
LCD E 901 Indication Alarm description Effect / Symptom
TEST FAILED
Vacuum test failed
during TEST PHASE –
10min.
Excessive pressure rise in chamber
(P2-P1) < 0.10 bar.
Possible causes / Checks Solution
Problem with door gasket
sealing – check gasket.
Clean gasket and steel ledge thoroughly, reset alarm and repeat one test cycle.
Clean gasket seating surface in cap.
Check for residue on inside face of gasket lip.
Check cap adjustment and re-adjust as required.
Check door cap.
Problem with reinforced
tube sealing – check tubes
and connections.
For all reinforced tubes connected to chamber, steam generator, manifold unit, check:
- Condition of reinforced tubes at connection point, checking for correct tube position
on tting.
- Stainless steel clamp is in place and tightened properly.
To check for proper sealing, you may start a test cycle from menu SERVICE/TEST
CYCLES/NO VACUUM SQ22, that will pressurize the system omitting the pre-vacuum
phases.