Configure Fans At Low Temperatures; Sets Pump Start-Up For Anti-Freeze; Multi-Function Input Configuration (U10); Configuration Of Power Limitation For Input (U10) - AERMEC PCO5 User Manual

Installer
Total recovery
Antifreeze alarm
Threshold:
Di erential:
Threshold: the anti-freeze alarm is generated below the temperature of the recov-
ery input or recovery output probes;
Differential: 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;

8.16 CONFIGURE FANS AT LOW TEMPERATURES

This mask is used to configure the cyclical start-up of the fans to eliminate any ac-
cumulation of snow:
Fans
Fan antifreezer/snow
function enable
Ext.Air temp.:
Pulse time O :
Pulse time On :
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);
Off 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
Antifreeze Heater
Force ON pumps:
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:
28
Installer
Multifunction Input
Con g. Input (U10):
3.0°C
NOT PRESENT
1.0°C
Type:
Min: 4.0mA
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 configuration 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 configuration 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;
YES
8.19 CONFIGURATION OF POWER LIMITATION FOR INPUT
(U10)
1.0°C
This mask is used to set the "POWER LIMITATION" function for input U10:
120min
Installer
30s
Multifunction Input
Power limit
Minimun Limit :
Maximum 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)
YES
This mask is used to set the "NTC" function (for the type) on input U10:
Installer
Multifunction Input
Con g. NTC
Minimum temp.:
Maximum temp.:
4-20mA
Max: 20.0mA
100%
0%
15.0°C
25.0°C