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9.11 TOTAL RECOVERY CONFIGURATION
This window allows to set the temperatures (minimum and maximum and differ-
ential) for the recovery management, in addition to the pump management logic:
Installer
Total recovery
Di erential:
Max outlet temp.:
Pump:
Differential: indicates the differential used in the adjustment to calculate the pow-
er necessary for recovery;
Max output temp:indicates the recovery water output temperature above which
it is forced out from the recovery system, it can re-enter when the water output
temperature returns below this threshold minus 3° C;
Pump management:
— No: recovery activates when the flow switch contact closes for water passage.
The pump is not managed by the unit;
— Yes: The pump is managed by the unit. It turns off when the recovery inlet tem-
perature setpoint is reached.It turns back on when the temperature of the water
at the recovery input drops 3°C below the recovery setpoint. In addition to the
flow switch, a possible pump thermal switch is also managed that causes the
shutdown;
WARNING: this mask is available on units with total recovery.
9.12 ANTI-FREEZE ALARM CONFIGURATION
This window is used to configure the system anti-freeze alarm:
Con g.Alarms
Antifreeze alarm
plant
Threshold:
Di erential:
Force ON pumps:
Threshold: this value indicates the temperature of the inlet or outlet water (based
on the type of regulation selected), below which the anti-free alarm activates;
Differential: this value indicates the differential to apply to the anti-freeze acti-
vation threshold; when the water temperature (inlet or outlet) is higher than the
threshold value plus the differential, the anti-freeze alarm is deactivated;
Pump ON power: by changing this value, it is possible to decide whether to auto-
matically activate or deactivate the pumps during the anti-freeze alarm;
9.13 MANAGING THE PUMPS
This mask is used to manage the pumps inside and outside the unit:
Installer
Number of Pumps:
Idle time:
5.0°C
53.0°C
Delay switch-o :
No
Number of pumps: this parameter indicates if there are pumps outside the unit;
Off time: this value indicates the off time for a pump, after which the pump is acti-
vated (if there are several pumps installed on the unit this prevents limescale build-
up in the pump in the case of an extended stop);
Delay off: this value indicates the pump turn off delay after deactivating the com-
pressors;
9.14 CONFIGURE ANTI-FREEZE MANAGEMENT VIA THE
PUMP
This mask is used to configure the cyclical activation of the pump for the anti-freeze
function:
Installer
Cycles pump start
Antifreeze Enable:
Cycle time
Pulse time
Min.Extern.Air Temp.
3.0°C
Enable pump cyclical start-up for anti-freeze: this value indicates whether to
enable the pump start-up cycle for the anti-freeze function;
1.0°C
Cycle time: this value indicates the interval time between pump activation periods;
Forced duration: this value indicates the time the pumps will be made to operate
for the anti-freeze function;
YES
Outside temp threshold: this value indicates the temperature for the outside air
below which the anti-freeze cycle activates (if enabled);
0
168h
5s
N
30min
2min
5.0°C
23
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