Faster FlowFAST H, Operating & Maintenance Manual

Page: 10 / 46

a D:GROUP company
00020EN Rev.09 – 12/2012 10
1 STAND BY (speed reduction) By pushing the corresponding red key the password (the same to start the
ventilation) is requested. Once confirmed the password the function is enabled.
When it is enabled, the corresponding red LED lights up and, for single fan
cabinets, the air speed is about 30% lower than their nominal speeds. The light
and the gas electrovalve cannot be switched on. If they are on, they switch off
automatically. If the PCB for the automatic regulation is installed following two
messages appear alternatively:
>>>ATTENTION<<<
DANGER
and:
REDUCED AIRFLOW
>>>DO NOT WORK<<<
The “SPEED REDUCTION” function can be enabled only with the main switch in
position “I”. Only the internal socket [8] can be operated.
2 U.V. (optional) Yellow key to switch on UV. This supplies the U.V. lamp in “manual” mode; when enabled, the
display shows "U.V. on". The U.V. lamp switches on only if the cabinet is off, the
lighting of the cabinet is off and the front window is completely closed.
By pushing the relevant key you are requested to set the U.V working time. The
timer resolution is 1 minute and the maximum time is 180 minutes (3 hours). The
display will show the latest pre-set value, which can be changed using the
“arrow” keys; when the time has been set, press the “SET” key to confirm. At this
point the yellow LED lights up, the U.V. lamp is activated and the countdown
starts. During the cycle the following message appears:
U.V. TIMER
U.V. Timer (min) xxxx
3-4 UP/DOWN ARROWS Use the arrow keys to scroll the menu, to program changing parameters and to put in
the password. Two passwords are programmed:
1) to start the cabinet and to enter the operator menu
2) to enter the main menu to change the data input (allowed only to authorized
technical staff – service – because unsuitable interventions can cause troubles
and incorrect operation of the cabinet.