OMNIA M 3.2
B.1 When unit detect voltage is 230VAC between H and N, unit turn on.
B.2 When unit detect voltage is OVAC between H and N, unit turn off.
When ROOM THERMOSTAT is set to YES, the indoor temperature sensor Ta can't be set to valid, unit running only
according to T1.
• Method C
Hydraulic module is connected with two external temperature controllers, while user interface FOR SERVICEMAN set DUAL
ROOM THERMOSTAT to YES:
C.1 When unit detect voltage is 230VAC between H and N ,the MAIN side turn on.When unit detect voltage is OVAC between
H and N, the MAIN side turn off.
C.2 When unit detect voltage is 230VAC between C and N, the ROOM side turn on according to climate temp curve. When
unit detect voltage is OV between C and N, the ROOM side turn off.
C.3 When H-N and C-N are detected as OVAC, unit turn off.
C.4 when H-N and C-N are detected as 230VAC, both MAIN and ROOM side turn on.
•
The wiring of the thermostat should correspond to the settings of the user interface. Refer to 10.7 Field setting/Room
Thermostat.
•
Power supply of machine and room thermostat must be connected to the same Neutral Line and (L2) Phase Line (for
3-phase unit only).
Procedure
•
Connect the cable to the appropriate terminals as shown in the picture.
•
Fix the cable with cable ties to the cable tie mountings to ensure stress relief.
3) For 3-way value SV3
Wiring of the 3-way valve is different for NC (normal close) and NO (normal open). Before wiring, read the Installation &
Owner's manual for the 3-way valve carefully and install the valve as showed in the picture. Make sure to connect it to
the correct terminal numbers.
Procedure
•
Connect the cable to the appropriate terminals as shown in the picture.
•
Fix the cable reliably.
4) For different functions pumps:
PUMP C
CONTROL SIGNAL
OUTPUT
(For zone 2 pump)
22T÷30T
NOTE
NOTE
NOTE
PUMP_o
CONTROL SIGNAL
OUTPUT
(For zone 1 pump or
dutside circulating pump)
Cod. 3QE47660 - Rev. 00 - 02/2022
Voltage
Maximum running current (A)
2
Wiring size (mmI
)
Control port signal type
PUMP_s
CONTROL SIGNAL
CONTROL SIGNAL
OUTPUT
(For dHW tank circulating
( For solar pump)
220-240VAC
0.2
0.75
Type 1
PUMP_d
OUTPUT
pump)
119
EN