Immergas MAGIS M4-30 Use And Installation page 35

8.2.3 Double zone control.
Esterno
Outdoor
1
Code
1 Main unit
Control panel
2
4 Balance tank
4.1 Automatic air purge valve
4.2 Discharge valve
5 P_o: Zone 1 circulation pump
10 Expansion vessel
12 Filter (accessory)
14 Cut-off valve
15 Filling valve
• Space heating.
Zone 1 can operate in cooling mode or in heating mode, while Zone 2 can only operate in heating mode; upon installa-
tion, the thermostat in Zone 1 must be connected to "H". The thermostat in Zone 2 must be connected to "C".
1) Switching Zone 1 ON/OFF is controlled by the Zone 1 room thermostat. When "H" on the Zone 1 thermostat closes,
Zone 1 switches ON. When "H" opens, Zone 1 switches OFF; the target temperature and the operation mode are set on
the control panel.
2) In heating mode, switching Zone 2 ON/OFF is controlled by the Zone 2 room thermostat. When "C" on the Zone 2
thermostat closes, Zone 2 switches ON. When "C" opens, Zone 2 switches OFF. The target temperature is set on the control
panel; Zone 2 can only operate in heating mode. When cooling mode is set on the control panel, the Zone remains OFF:
• Circulation pumps operation.
When Zone 1 is ON, P_o starts to run; when Zone 1 is OFF, P_o stops.
When Zone 2 is ON, SV3 alternates between ON and OFF according to the set Tw2, P_c remains ON; when Zone 2 is
OFF, SV3 is OFF, P_c stops.
Indoor
Interno
2
S20-2
S20-1
Modbus
14
15
14
12 16 16
Assembly unit
10
4.1
5
23
Tw2
23.1 23.2
4
4.2
Code
16 Discharge valve
19 Manifold/distributor
23 Mixing kit
23.1 SV3: Mixing valve
23.2 P_c: Zone 2 circulation pump
S20-1 Zone 1 Room thermostat
S20-2 Zone 2 Room thermostat
Tw2 Zone 2 water low temperature sensor (optional)
FHL
Floor heating circuit
1... n
RAD.
Radiator
1... n
35
RAD.1 ZONE 1 ZONA1
RAD.2
RAD.n
ZONE 2
19 ZONA2
FHL1 FHL2 FHLn
Assembly unit