43
EN
Cod. 3542B230 - Rev. 00 - 02/2022
OMNIA S HYBRID H 3.2
•
Method C - setting for thermostat temperature control from two zones
The request may come, for example, from the two room thermostats of the two
system zones to be served. The system will operate in the mode set by the user
interface.
Set par. 6.1 = 3 (mode set).
Set par. 5.3 = 1 (enabling control of 2 zones)
H-L1
(TZ1 - zone 1)
L1-C
(TZ2 - zone 2) Operating status
Closed
Open
Serving zone 1 through the activation of
pump P_o
Open
Closed
Serving zone 2 through the activation of
pump P_c and temperature control sent with
mixing valve SV3 (if installed) and water
temperature probe Tw2 (if installed)
Closed
Closed
Serving zone 1 through the activation of
pump P_o and serving zone 2 through the
activation of pump P_c and temperature
control sent with mixing valve SV3 (if in-
stalled) and water temperature probe Tw2
(if installed)
Open
Open
Off zone 1 and zone 2
OT
OT
A
B
E
P
Q
E
H
L1
C
TZ1
TZ2
fig. 32 - Method C thermostat ( 2 zones)
NOTE
The wiring of the thermostat should correspond to the settings of the user
interface.
7.9.2 Connection of system add-ons
The unit can manage system add-ons, such as an external circulation pump / zone 1 water pump, zone 2 water pump, 3-way mixer valve for zone 2, 3-way diverter
valve for hot/cold mode, DHW recirculation pump, electric heating element for DHW boiler, thermal solar pump, photovoltaic input and smart grid. All these elements
are controlled by the heat pump hydronic board.
7.9.3 How to access the heat pump hydronic board
Remove the front panel (see “7.9.1 Opening the front panel"
on page 42)
The board (detail A "fig. 33 - heat pump hydronic board") is
located inside the heat pump electric box (see “fig. 8 - View
without front panel" on page 25). To access it, you need
to remove the sheet metal cover by removing the fastening
screws.
A
fig. 33 - heat pump hydronic board
