flamco Vacumat Eco 300 Mode D'emploi page 13

5.4.6 Operating mode - fully automatic
Once the system has been fully set up (Start menu completed) and commissioned, and the control unit has been switched on, a
delay first occurs; then the temperature in the machine is initially adjusted for a preset period before it is measured. Based on the
temperature and the preset check degassing mode, the process in the vessel is regulated so that, after a certain time, it is possible
to determine at the pressure switch whether undissolved air still exists in the medium at the level predefined by the degassing mode.
If this is not the case, no air is discharged in check degassing and degassing is interrupted; then, after readjusting the temperature,
the gas load is tested again and the process is repeated.
However, if air is discharged from the vessel in the check degassing discharge phase, check degassing is followed by normal
degassing; a lower negative pressure is built up than in check degassing and the medium is undersaturated with respect to the
existing gas charges. This is repeated cyclically until either check degassing is pending, or the system switches to a degassing
wait because no air is discharged at the end of the discharge phase during normal degassing. The system then continues with the
temperature adjustments and check degassing after a specified interval time.
n
Pump ON***
Pump ON**
Pump ON*
Pump OFF
Switch-on Adjust
temperature
delay
Control unit ON
* Pump runs at a low speed level in order to achieve discharge pressure in the vessel.
** Pump runs at a higher speed level in order to build up the target vacuum in the vessel.
*** Pump runs at a high speed in order to build up a stronger vacuum in the vessel and degas effectively.
5.4.7 Standby operating mode
Topping-up only occurs in this mode during "virtually permanent pauses" in normal degassing, and thus interrupts the pauses.
Check degassing is not performed.
In addition, the standby setting can also be induced by bridging contact 39 and 40 (takes priority over the software setting).
This can be used to, for example, switch off degassing remotely or also to interrupt degassing when the circulation pumps are
switched off to prevent inefficient degassing. It is not necessary to wait until the Vacumat Eco detects this problem (with a delay)
after check degassing or because no gas is discharged during normal degassing.
5.4.8 Break times / exclusion times with blocking intervals
Break times for degassing can be defined so that a time-limited standby mode is implemented automatically at certain times of day.
Up to 8 blocking intervals can be implemented per day for these breaks which are referred to as exclusion times in this document.
5.4.9 Vacuum test
Requires the supply connection to be shut off when the vessel is full (coming from the system return). When doing so, the pump
generates a vacuum after a couple of seconds; the vacuum must remain stable for a specified period of time in order to verify the
pump's performance and ensure the vessel is leak-tight. This test is typically needs to be performed prior to commissioning and
after maintenance.
Cycle
Check degassing
Generate vacuum Discharge
Decision:
Normal degassing or
interruption
Cycle
Normal degassing
Generate vacuum Discharge
normal degassing
Pause
t
Zyklenablauf Vacumat ECO 20150417
13