OMNIA M 3.2
10) For defrosting signal output:
FUSE
11) For wired controller:
COMMUNICATION
NOTE
This equipment supports MODBUS RTU communication
protocol.
As described above, during wiring, port A in the unit terminal XT6 corresponds to port A in the user interface. Port B
corresponds to port B. Port X corresponds to port X. Port Y corresponds to port Y, and port E corresponds to port E.
Procedure
•
Remove the rear part of the user interface.
•
Connect the cable to the appropriate terminals as shown in the picture.
Reattach the rear part of the user interface.
12) For other functional ports
a. For room thermostat (Low voltage): see 9.7.6 2) for room thermostat
b. For smart grid:
The unit has smart grid function, there are two ports on PCB to connect SG signal and EVU signal as following:
1. When EVU signal is on , and SG signal is on, as long as the DHW mode is set to be valid, heat pump will operate DHW
mode priority and the DHW mode setting temperature will be change to 70'C. T5<69'C , the TBH is on,T5S70 C , the TBH is
off.
2. When EVU signal is on , and SG signal is off, as long as the DHW mode is set to be valid and the mode is on, heat pump
will operate DHW mode priority. T5<T5S-2, the TBH is on,T5aT5S+3, the TBH is off.
3. When EVU signal is off, and SG signal is on, the unit operates normally.
4. When EVU signal is off, and SG signal is off, the unit operates as below: The unit will not operate DHW mode, and the TBH
is invalid, disinfect function is invalid. The max running time for cooling/heating is "SG RUNNING TIME", then unit will be off.
22T÷30T
DEFROSTING
PROMPT SIGNAL
A
B
E
Y
X
MODBUS
Cod. 3QE47660 - Rev. 00 - 02/2022
Voltage
Maximum running current (A)
2
Wiring size (mm
)
Control port signal type
A
B
E
Y
X
"PLEASE USE SHIELDED WIRE AND EARTH
THE WIRE."
Wire type
2
Wire section (mm
)
Maximum wire length (m)
For room thermostat
(Low voltage)
For smart grid
220-240VAC
0.2
0.75
Type 1
5 wire shielded cable
0.75-1.25
50
121
EN