Heating / Cooling Selector Function; Dhw Recirculation Function - Immergas MAGIS PRO 12 V2 Instructions And Recommendations

3.27 HEATING / COOLING SELECTOR FUNCTION

The cooling/central heating selector function uses the S44 contact in combination with the zone 1 Room thermostat to make central
heating/cooling requests to the machine using free contacts.
The type of demand, central heating or cooling, can be selected from the external selector S44, see Horizontal terminal block electrical
connection diagram (Par. 1.9);
To use this command, the function in question must be enabled by means of the parameter A 39=ON.
To make the request, it is necessary to position the S44 selector as indicated in the following table:
S44 Selector Mode
Closed Central heating
Open Cooling
At the end, close the zone 1 Room thermostat contact.
The remote devices cannot be used when the function is enabled, except for the room thermostat of zone 1; even the demands of other
zones, 2 or 3, are disabled automatically.

3.28 DHW RECIRCULATION FUNCTION

It is possible to manage DHW recirculation by activating the circulator based on a set schedule (see parameters U 32 and U 33).
The function is activated by selecting the relative function in parameters P 03, P 04 and P 05.
If U 32=U 33, the function is active all day.
For correct operation of recirculation it is necessary to install the relay board (optional kit).
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