AERMEC NRGI - Multi-function input configuration (U10)

24
3.0°C
1.0°C
4.0°C
Installatore
Recupero totale
Allarme antigelo
Soglia:
Dierenziale:
Delta calcolo:
Threshold: the anti-freeze alarm is generated below the temperature of the recov-
ery input or recovery output probes;
NB: the threshold cannot be modied in the case of glycol water (setta-
ble), but is the result of the calculation obtained from: Actual Setpoint
– Calculation delta;
Dierential: once the anti-freeze alarm has been triggered, it can be reset when the
temperature of the probe that caused the alarm rises beyond the Threshold value +
the value of this parameter;
Calculation delta: Delta to subtract from the current setpoint to obtain the recovery
anti-freeze alarm threshold if glycol water is enabled;
8.16 CONFIGURE FANS AT LOW TEMPERATURES
This mask is used to congure the cyclical start-up of the fans to eliminate any ac-
cumulation of snow:
1.0°C
120min
30s
Fans
YES
Pulse time On :
Pulse time O:
Ext.Air temp.:
function enable
Fan antifreezer/snow
Enable: this value indicates whether to enable the anti-freeze function on the fans,
Outside Temp: this value indicates the temperature for the outside air below which
the anti-freeze cycle activates on the fans (if enabled);
O period: this value indicates the interval time between fan activation periods
during the anti-freeze function;
On period: this value indicates the time for which the fans will be made to operate
for the anti-freeze function
8.17 SETS PUMP START-UP FOR ANTI-FREEZE
This mask is used to set pump start-up if the electric heater turns on:
Installer
YES
Force ON pumps:
Antifreeze Heater
Pump ON power: this value indicates whether or not to activate the system pumps
during operation of the anti-freeze electric heater;
8.18 MULTI-FUNCTION INPUT CONFIGURATION (U10)
NB: to use this function, close the contact on input ID18;
This mask is used to set the function associated with multifunction input U10:
4-20mA
Min: 4.0mA Max: 20.0mA
Installer
Type:
NOT PRESENT
Cong. Input (U10):
Multifunction Input
U10: this value indicates which function to assign to the multifunction input U10;
the possible states are:
— NOT PRESENT: the multifunction input is disabled;
— POWER LIMITATION: input U10 is used to limit the unit power proportionally to
the signal applied to input U10 (the conguration of the managed power range
is available on the next window if this option is active);
— VARIABLE SETPOINT: input U10 is used to vary the unit work setpoint propor-
tionally to the signal applied to input U10 (the conguration of the range for
setpoint variation is available on the next window if this option is active);
Type: this value indicates the type of signal applied to the multifunction input; the
possible states are:
— 0-10V: input signal 0-10V;
— NTC: input signal NTC;
— 4-20mA: input signal 4-20mA
NB: if option (1) or (2) is selected as "Type", it will be possible to set the minimum
and maximum signal value;
8.19 CONFIGURATION OF POWER LIMITATION FOR INPUT
(U10)
This mask is used to set the "POWER LIMITATION" function for input U10:
0%
100%
Installer
Maximum Limit :
Minimun Limit :
Multifunction Input
Power limit
Minimum limit: this value indicates the minimum power level that can be reached
based on the input signal;
Maximum limit: this value indicates the maximum power level that can be reached
based on the input signal;
8.20 CONFIGURATION OF THE NTC SIGNAL FOR INPUT
(U10)
This mask is used to set the "NTC" function (for the type) on input U10: