Immergas MAGIS M4-30 Use And Installation page 92

H
zona1 zone1
There are three methods to connect the thermostat cable (as described in the previous images) and it depends on the ap-
plication.
• METHOD A (Set mode control).
RT can control heating and cooling individually, like the control panel for 4-pipe FCU. When the hydraulic module is
connected with the external temperature controller, on the control panel, in the FOR SERVICEMAN menu, set ROOM
THERMOSTAT at MODE SETTING:
A.1 When the unit detects a 230VAC voltage between C and L1, the unit runs in cooling mode.
A.2 When the unit detects a 230VAC voltage between H and L1, the unit runs in heating mode.
A.3 When the unit detects a 0VAC voltage for both sides (C-L1, H-L1), the unit stops operating for space heating or cooling.
A.4 When the unit detects a 230VAC voltage for both sides (C-L1, H-L1), the unit runs in cooling mode.
• METHOD B (One zone control).
RT supplies the switching signal to the unit. On the control panel, in the FOR SERVICEMAN menu, set ROOM THER-
MOSTAT at ONE ZONE:
B.1 When the unit detects a 230VAC voltage between H and L1, the unit switches on.
B.2 When the unit detects a 0VAC voltage between H and L1, the unit switches off.
• METHOD C (Double zone control).
The hydraulic module is connected with two room thermostats, on the control panel, in the FOR SERVICEMAN menu,
set ROOM THERMOSTAT at DOUBLE ZONE:
C.1 When the unit detects a 230VAC voltage between H and L1, zone 1 switches on. When the unit detects a 0VAC voltage
between H and L1, zone 1 switches off.
C.2 When the unit detects a 230VAC voltage between C and L1, zone 2 switches on depending on the weather temperature
curves. When the unit detects a 0VAC voltage between C and L1, zone 2 switches off.
C.3 When H-L1 and C-L1 are detected as 0VAC, the unit switches off.
C.4 When H-L1 and C-L1 are detected as 230VAC, both zone 1 and zone 2 switch on.
3 4
15
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L1
POWER SUPPLY
INGRESSO
RT1
ALIMENTAZIONE INPUT
zone2 zona2
Voltage
Maximum operating current (A)
Wiring size (mm
25 26 27 28
1 2 3 4 5
29 30 31 32
6 7 8 9 10
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Metodo C
Method C
(Double zone control)
(Controllo due zone)
C
POWER SUPPLY
INGRESSO
RT2
ALIMENTAZIONE INPUT
220-240VAC
0.2
2
) 0.75
92
CN30