Page - IOM / @DNOVA-µAC-0907-E
F8 Maximum output value
Specifies a speed value below the maximum value, set
using the parameter F3. (see diagrams at the end of the
paragraph).
Range: F7÷100% Def.: 100
F9 supply fan hour counter threshold
Sets the number of fan operating hours beyond which the
maintenance request is signalled.
0= this function is not handled.
Range: 0÷30000 hours Def.: 0
FA supply fan hour counter
Indicates the number of operating hours of the fan. Pressing
the and buttons together during the display of this parameter
resets the hour counter (only in USER or FACTORY mode)
and cancels the maintenance request, if enabled.
Range: 0÷30000 hours Def.: 0
Fb Filter hour counter threshold
Sets the number of filter operating hours beyond which the
maintenance request is signalled.
0= this function is not handled.
Range: 0÷30000 hours Def.: 0
Fc Filter hour counter
Indicates the number of operating hours of the filter. This
hour counter is increased if the fan is working; as a result,
until reset the first time has the same value as FA. Pressing
the and buttons together during the display of this parameter
resets the hour counter (only in USER or FACTORY mode)
and cancels the maintenance request, if enabled.
Range: 0÷30000 hours Def.: 0
Fd supply fan off delay
Specifies the time, in seconds, during which the fan stays on,
after switching from ON => STAND-BY (keypad, time bands,
digital input, rotation).
Range: 0÷900s Def.: 20
Fe Fan pick-up time in condensation
Sets the operating time at maximum speed on starting-up
the fans, if used for condensation control, to overcome the
mechanical inertia of the motor. If set to 0 the function is not
performed, that is the fans are activated at minimum speed and
then controlled according to the condensation temperature/
pressure.
Range: 0÷60s Def.: 4
operating diagrams of the condensation fan in telecom
Fig. 3 : condensation fan control
P= alarm management parameters
P1 Flow alarm delay from fan start-up
Sets a delay in recognising the air flow alarm (FL) on fan
start-up, delaying as well the activation of the other actuators
to allow the reading of a possible flow alarm.
Range: 0÷250s Def.: 20
P2 Flow alarm delay during operation
Sets a delay in recognising the air flow alarm (FL) during the
operation of the fan.
Range: 0÷90s Def.: 5
P3 Low pressure alarm delay from compressor start-up
Sets a delay in recognising the low pressure alarm on the
start-up of the compressor/s, to allow the operating conditions
to be reached.
Range: 0÷250s Def.: 40
P4 Buzzer activation
Sets the activation time for the buzzer in the case of alarms:
0= buzzer always disabled.
1÷14= buzzer is silenced automatically after P4 minutes
15= buzzer stays on until the alarm condition no longer exists
(automatic reset) or until the Alarm button is pressed. If after
silencing the buzzer, manually or automatically after a set time,
a new alarm occurs, the buzzer is reactivated.
Range: 0÷15 mins Def.: 0
P5 Reset alarms
Allows the selection of various reset configurations (manual
or automatic) for the alarms.
Range: 1÷5 flag Def.: 1
DESCRIPTION AND CONFIGURATION OF THE PARAMETERS
Max = F8
Min = F7
0,5°C
1 Bar
B2 o B3
