Mocom B CLASSIC - Page 26

24
EN
B CLASSIC / B FUTURA / S CLASSIC - TECHNICAL MANUAL
ALARMS
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 SQ, 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 902 Indication Alarm description Effect / Symptom
TEST FAILED
VACUUM PULSE FAILED:
Vacuum test failed, vacuum pulse
TIMEOUT exceeded.
Negative pressure value of – 0.80 bar not reached
before set TIMEOUT.
Possible causes / Checks Solution
Problem with vacuum pump
start-up – check pump.
Conrm pump start-up when test cycle is activated.
To perform this check, it might be a good idea to activate the vacuum pump from menu
SERVICE/COMPONENT TEST/OTHER COMPONENTS – SOLENOID VALVES SQ
14, that lets you detect air suction from the chamber.
Check/Change the vacuum pump.
Problem with vacuum pump
efciency – check pump.
Check chamber drain lter.
Check vacuum pump diaphragms.
Check vacuum pump shutters.
Vacuum pump maintenance.
Problem with solenoid valve
activation – check solenoid
valves.
Check for proper activation and opening of EV3 – EV4.
To perform this check, it might be a good idea to check for EV3 –EV4 opening activate
from menu SERVICE/COMPONENT TEST/OTHER COMPONENTS – SOLENOID
VALVES SQ 15, that lets you detect air suction from the chamber.
Problem with tubes – check
tubes.
Check condition and proper connection of:
Reinforced tubes of chamber
TEFLON tubes
Braided tubes of heat exchanger
Problem with heat
exchanger sealing - check
heat exchanger.
Disconnect inlet and outlet tubes of exchanger, connect tubes together so as to bypass
exchanger.
Activate test cycle.
Change heat exchanger.
LCD E 998 Indication Alarm description Effect / Symptom
REMOTE SERVICE Remote access in Service mode
Possible causes / Checks Solution
A connection to “Service” menu occurred from remote
through Ethernet or WiFi (Futura only)
Nothing to do
LCD E 999 Indication Alarm description Effect / Symptom
MANUAL INTERRUPTION Manually interrupting the cycle.
STOP control is kept depressed for at least 3” and
cycle is stopped.
Possible causes / Checks Solution
User pressed the START/
STOP key.
The manual STOP control must only be used when necessary.
Do not use it to add load to the chamber.