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OMNIA M 3.2
8.4.3 Application c
Boiler provide heat for domestic water heating. The ON/OFF of boiler controlled by unit.
Coding
Assembly unit
1
Outdoor unit
1.1
Manometer
1.2
Pressure relief valve
1.3
Expansion vessel
1.4
Plate heat exchanger
1.5
Air purge valve
1.6
Flow switch
1.7
P_i: Circulation pump inside the unit
2
Y-shape filter
3
Stop valve (field supply)
4
Wired controller
6
Drain valve (field supply)
7
Fill valve (field supply)
8
Balance tank (field supply)
8.1
Air purge valve
8.2
Drain valve
The volume of balance tank (8) should be greater than 40L. The drain valve (6) should be installed at the lowest positon
of the system. Temperature sensor T1 must be installed at the outlet of AHS, and connect to the corresponding port in
the main control board of hydraulic module (referto 9.3.1 Main control board of hydraulic module), pump (10) should
be controlled by outdoor unit and connect to corresponding port in the outdoor unit (referto 9.7.6 Connection for other
components/For outside circulation pump P_o).
Operation
When heating is required, either the unit or the boiler starts operating, depending on the outdoor temperature (refer to 10.7
field setting/OTHER HEATING SOURCE).
•
As the outdoor temperature is measured via the outdoor unit air thermistor, make sure to install the outdoor unit in the
shade, so that it is not influenced by the sun's heat.
•
Frequent switching can cause corrosion of the boiler at an early stage. Contact the boiler manufacturer.
22T÷30T
Coding
FHL 1...n
NOTE
Cod. 3QE47660 - Rev. 00 - 02/2022
Assembly unit
9
Expansion vessel (field supply)
10
P_o: Outside circulation pump (field supply)
11
Collector / distributor (field supply)
12
Domestic hot water tank (field supply)
12.1
Air purge valve
12.2
Heat exchanger coil
12.3
Booster heater
13
T5: DHW tank temp, sensor
14
Hot water tap (field supply)
15
P_d: DHW pump (field supply)
16
One way valve (field supply)
18
SV1: 3-way valve (field supply)
22
T1: Outlet water temperature sensor (field supply)
Floor heating loop (field supply)
AHS
Additional heating source (boiler) (field supply)
/
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97
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