Immergas MAGIS M4-30 Use And Installation page 55

Port
1 CN21
2 S3
3 DIS1
4 CN5
5 CN28
6 CN25
7 S1,S2,S4,SW9
8 CN4
9 CN8
10 CN6
11 CN24
12 CN16
13 CN13
14 CN15
15 CN18
16 CN17 PUMP_BP
17 CN31
18 CN35
19 CN36
20 CN19
21 CN14 A B X Y E
22 CN30
26 30/31 32
23 CN7
24 CN11
25 CN2
Code
POWER Power supply port
- Not used
- Digital display
EARTH Earth port
PUMP Variable speed pump power input port
DEBUG IC programming port
- DIP Switch
USB USB programming port
FS Flow switch port
Port for refrigerant liquid side temperature sensors, internal unit temperature (heating
T2
mode)
Port for refrigerant gas side temperature sensors, internal unit temperature (cooling
T2B
mode)
TW_in Port for inlet water temperature sensors of plate heat exchanger
TW_out Port for outlet water temperature sensors of plate heat exchanger
T1
Port for outlet water nal temperature sensors of outdoor unit
Tbt1 Port for upper temperature sensor of balance tank
Tbt2 Not used
T5 Port for domestic hot water temperature sensor
Tw2 Port for outlet water of zone 2 temperature sensor
Tsolar Port for solar panel lower temperature sensor
Port for variable speed pump communication
HT Room thermostat control port (heating mode)
COM Room thermostat power supply port
CL Room thermostat control port (cooling mode)
SG SMART GRID port (grid signal)
EVU SMART GRID port (photovoltaic signal)
M1 M2 Port for remote switch
T1 T2 Not used
P Q Not used
Port for communication with control panel
1 2 3 4 5 Port for communication with control panel
6 7 Not used
9 10 Port for machines in cascade
Compressor operation/Defrost operation
25 29 Not used
27 28 Port for additional heating source
1 2 Solar energy input port
3 4 15 Room thermostat port
5 6 16 Port for SV1 (3-way valve)
7 8 17 Port for SV2 (3-way valve)
9 21 Port for zone 2 pump
10 22 Port for external circulation pump
11 23 Port for solar energy pump
12 24 Port for DHW pipes pump
13 16 Control port for TBH DHW booster heater
14 17 Port for indoor unit backup heater
18 19 20 Port for SV3 (3-way valve)
TBH_FB Feedback port for external thermostat (in default short-circuit)
Assembly unit