Dehumidification Function; Outdoor Unit Testmode Function; Outdoor Unit Pump Down Function; Puffer In Preheating Function - Immergas MAGIS PRO 12 V2 Instructions And Recommendations

3.21 DEHUMIDIFICATION FUNCTION

Dehumidification can be performed according to three different types of devices:
1) Humidistat;
2) Humidity sensor;
3) Remote zone panel.
In the first case, the cooling mode temperature corresponds to:
- In the event of dehumidification request: maximum setpoint set for the request zone;
- In the event of dehumidification and cooling request: setpoint set for the request zone.
In the second and third cases, the cooling mode temperature corresponds to:
- In the event of dehumidification request: maximum setpoint set for the request zone;
- In the event of dehumidification request and cooling request: setpoint set for the request zone, but limited by the calculated dew tem-
perature.
The dew temperature is only calculated for adjustments above or equal to 15°C.

3.22 OUTDOOR UNIT TESTMODE FUNCTION

When test mode is used (see outdoor unit instruction booklet), the indoor unit must be set in a mode other than "Stand-by".
The alarm E183 is triggered during the test, meaning "Test mode" in progress.

3.23 OUTDOOR UNIT PUMP DOWN FUNCTION

If the pump down function is used (see outdoor unit instruction booklet) the indoor unit must be set in "Stand-by".
The function can only be activated if the appliance is not under alarm.

3.24 PUFFER IN PREHEATING FUNCTION

In the presence of an inertial storage tank heated by other sources of heat, following a central heating demand, it is possible to prevent the
generators from being activated by using hot water coming from the puffer
The function is activated by setting one of the relays of the relay board at 4. (see P03, P04,P05).
The puffer function requires the puffer probe.
See the instruction sheet of the relay board for details and examples

3.25 NIGHT MODE FUNCTION

This function can be activated by setting the internal clock of the appliance (parameters U 21 and U 22).
Activating the function allows you to reduce the compressor frequency during the outdoor unit operation in the time slot set in the U 12
and U 13 parameters.
Make sure the additional power sources needed to meet potential requirements that may present themselves during active operation are
available (e.g. additional resistances).

3.26 SYSTEM SETPOINT CORRECTION FUNCTION

In the presence of hydraulic disconnections on the system which separate the appliance from the zones, a function can be activated which
allows to meet the demands, by correcting the appliance's setpoint.
The corrections can be made either in heating or cooling mode only.
They are activated by setting the parameters P 23 or P 24 at a value > 0°C.
Following a demand, the correction begins after a time equal to P 21 and continues by 1°C every P 22 minutes.
To connect the B3-1, B3-2 and B3-3 probes, please refer to the wiring diagram (Fig. 9):
To enable the setpoint correction on zone 1, it is necessary to set the parameter A27=ZN1.
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