Immergas MAGIS PRO 12 V2 Instructions And Recommendations page 35

Operation with external probe
The system is set up to use the outdoor unit external probe or an optional external probe.
With the external probe connected, the system flow temperature for room heating and air conditioning is managed by the external probe
based on the outdoor temperature measured (Parag. 1.15).
You can change the flow temperature by choosing the offset value in the specific user menu.
In this case, any settings made on the indoor unit will not affect system operation.
Dehumidify
If the system is coupled to a humidistat (optional) or a humidity temperature sensor or a remote zone panel (optional), you can manage
the room humidity in summer air conditioning mode.
– If coupled to a humidistat, set the degree of humidity on the humidistat itself (see the instruction booklet).
– If coupled to a humidity temperature sensor, set the humidity percentage in the relative user menu.
– If coupled to a zone remote panel, set the humidity percentage in the relative user menu of the control panel or directly in the menu of
the panel (see instruction booklet).
In central heating or cooling request mode, if the temperature of the water in the system meets the request, the system can work
simply by activating the circulator pump.
"Stand-by" Mode
Press button (1) repeatedly until the symbol
ti-block and 3-way function and signalling of any anomalies are guaranteed.
In these conditions the system must still be considered powered.
OFF mode
By holding the button (1) down for 8 seconds, the display switches-off and the indoor unit is off completely. In this mode, the safety func-
tions are not guaranteed and the remote devices are disconnected.
In these conditions the indoor unit is considered still live even if there are no functions active.
"Automatic vent" mode
Every time the indoor unit is electrically powered, the system automatic vent function is activated (lasting 8 minutes). This function is
displayed via a countdown signalled by the indicator (14).
During this period the DHW and CH functions are not active.
The "Automatic vent" function can be annulled by pressing the "Reset" button (3).
Display operation
The display lights up while the control panel is being used; after a set inactivity period, the brightness drops until only the active symbols
are displayed. The lighting mode can be varied via parameter T08 in the P.C.B. programming menu.
Air conditioning and Dehumidification active mode
appears. The system remains off from this moment, though the antifreeze, pump an-
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