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Idiomas disponibles
Idiomas disponibles
2) For room thermostat
a. type 1 (RT1) (High voltage)
HEAT
COOL
POWER
IN
Method A
b. type 2 (RT1) (Low voltage): in main control board of hydraulic module CN31
COOL
HEAT
POWER
IN
Method A
NOTE
There are two optional connect method depend on the
room thermostat type.
Room thermostat type1 (RT1) (High voltage): "POWER IN" provide the working voltage to the RT, doesn't provide the voltage
to the RT connector directly. Port "15 L1" provide the 220V voltage to the RT connector. Port "15 L1" connect from the unit
main power supply port L of 1- phase power supply, L2 port of 3-phase power supply.
Room thermostat type2 (RT2) (Low voltage): "POWER IN" provide the working voltage to the RT.
HEAT
There are three methods for connecting the thermostat cable (as described in the picture above) and it depends on the
application.
• Method A
RT can control heating and cooling individually, like the controller for 4-pipe FCU. When the hydraulic module is connected
with the external temperature controller, user interface FOR SERVICEMAN set THERMOSTAT and ROOM MODE SETTING
to YES:
A.1 When unit detect voltage is 230VAC between C and N ,the unit operates in the cooling mode.
A.2 When unit detect voltage is 230VAC between H and N, the unit operates in the heating mode.
A.3 When unit detect voltage is OVAC for both side (C-N, H-N) the unit stop working for space heating or cooling.
A.4 When unit detect voltage is 230VAC for both side (C-N, H-N) the unit working in cooling mode.
• Method B
RT provide the switch signal to unit, user interface FOR SERVICEMAN set ROOM THERMOSTAT and MODE SETTING to
YES:
118
EN
POWER
IN
Method B
POWER
IN
Method B
Voltage
Maximum running current (A)
Wiring size (mm
TO CONTROL PCB
COOL
POWER SUPPLY
Cod. 3QE47660 - Rev. 00 - 02/2022
OMNIA M 3.2
POWER
IN
Method C
POWER
IN
Method C
2
)
3-phase
22T÷30T
POWER
IN
POWER
IN
220-240VAC
0.2
0.75
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