AERMEC NRGI User Manual

23
40.0°C
max. 5.0°C
SET
T.Ext
0.0°C 10.0°C
Compens.
Installer
Actual:
Setpoint heat
8.11 TOTAL RECOVERY CONFIGURATION
WARNING: this mask is available on units with total recovery.
This window allows to set the temperatures (minimum and maximum and dier-
ential) for the recovery management, in addition to the pump management logic:
5.0°C
53.0°C
35.0°C
No
No
Installatore
Recupero totale
Dierenziale:
Max temp. uscita:
Min temp. ingresso:
Gestione pompa:
Dierential: indicates the dierential used in the adjustment to calculate the power
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;
Min. input temp.: indicates the recovery water input temperature below which,
after a bypass time of 60 seconds for which the water inlet remains below this
threshold, an automatic reset alarm is generated (reset occurs when the water inlet
is greater than the threshold plus 3° C) and forces out of the recovery system;
Pump management:
— No: recovery activates when the ow switch contact closes for water passage.
The pump is not managed by the unit;
— Yes: The pump is managed by the unit. It turns o 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
ow switch, a possible pump thermal switch is also managed that causes the
shutdown;
8.12 ANTI-FREEZE ALARM CONFIGURATION
This window is used to congure the system anti-freeze alarm:
3.0°C
1.0°C
4.0°C
YESForce ON pumps:
Delta calcul.:
Dierential:
Threshold:
Cong.Alarms
plant
Antifreeze alarm
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;
Dierential: this value indicates the dierential to apply to the anti-freeze activation
threshold; when the water temperature (inlet or outlet) is higher than the threshold
value plus the dierential, the anti-freeze alarm is deactivated;
Calculation delta: value to subtract from the current setpoint to obtain the an-
ti-freeze alarm threshold if glycol water is enabled;
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;
NB: this window is displayed only if the use of glycol water is enabled in
the relative mask ("Set glycol water").
8.13 MANAGING THE PUMPS
This mask is used to manage the pumps inside and outside the unit:
168h
5s
0
Installer
Delay switch-o:
Idle time:
Number of Pumps:
Number of pumps: this parameter indicates if there are pumps outside the unit;
O time: this value indicates the o 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 o: this value indicates the pump turn o delay after deactivating the com-
pressors;
8.14 CONFIGURE ANTI-FREEZE MANAGEMENT VIA THE
PUMP
This mask is used to congure the cyclical activation of the pump for the anti-freeze
function:
30min
2min
5.0°C
N
Installer
Min.Extern.Air Temp.
Pulse time
Cycle time
Antifreeze Enable:
Cycles pump start
Enable pump cyclical start-up for anti-freeze: this value indicates whether to enable
the pump start-up cycle for the anti-freeze function;
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;
Outside temp threshold: this value indicates the temperature for the outside air
below which the anti-freeze cycle activates (if enabled);
8.15 CONFIGURATION OF THE ANTI-FREEZE ALARM ON
THE TOTAL RECOVERY
WARNING: this mask is available on units with total recovery, if the use
of glycol water is enabled (Paragraph "Glycol water management").
This mask allows to set the parameters for managing the anti-freeze alarm control
on the total recovery:

AERMEC NRGI Specifications

General

Brand	AERMEC
Model	NRGI
Category	Heat Pump
Language	English