System Filling - Immergas MAGIS PRO Series Instructions And Recommendations

Key (Fig. 11,13,12,14,15,16)
1 - Central Heating Set
2 - Cooling Set
Rxx - "Temperature control" menu parameter
TE - External temperature
TM - Flow temperature
U 01 - Zone 2 flow temperature in "User" menu central heating
mode
U 02 - Zone 2 flow temperature in "User" menu cooling mode
U 03 - Offset value compared to the curve set by the external probe
on central heating zone 1.
U 04 - Offset value compared to the curve set by the external probe
on central heating zone 2.
U 05 - Offset value compared to the curve set by the external probe
on cooling zone 1
U 06 - Offset value compared to the curve set by the external probe
on cooling zone 2
U 14 - Zone 3 flow temperature in "User" menu central heating
mode
U 15 - Zone 3 flow temperature in "User" menu cooling mode
U 16 - Offset value compared to the curve set by the external probe
on central heating zone 3
U 17 - Offset value compared to the curve set by the external probe
on cooling zone 3
Zx - Heating system zone

1.17 SYSTEM FILLING

Once the indoor unit is connected, fill the system using the filling
cock (Fig. 21).
The indoor unit has one incorporated automatic vent valve locat-
ed on the circulator and another on the central heating manifold.
Make sure that the hoods are loosened.
The filling cock must be closed when the indoor unit pressure
gauge indicates approximately 1.2 bar.
During these operations, enable the "Venting" func-
tions by setting the "U 50" parameter to ON, which lasts
about 18 hours (Parag. 3.9).
System minimum water content.
Minimum water content favours the proper execution of de-
frosting cycles and operation in cooling mode.
To this end, the minimum amount of water to guarantee is 30 li-
tres for any type of system and in any operating mode.
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