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Ferroli OMNIA M 3.2 22T Manual De Instalación Y Del Propietario página 94

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• Circulation pump operation
The circulation pump (1.7) and (10) will operate as long as the unit is on for space heating.
The circulation pump (1.7) will operate as long as the unit is on for heating domestic hot water (DHW).
• Space heating
1) The unit (1) will operate to achieve the target water flow temperature set on the wired controller.
2) The bypass valve should be selected so that at all times the minimum water flow as mentioned in 9.4 Water piping is
guaranteed.
• Domestic water heating
1) When the domestic water heating mode is enabled (either manually by the user, or automatically through scheduling)
the target domestic hot water temperature will be achieved by a combination of the heat exchanger coil and the electrical
booster heater (when the booster heater in the tank is set to YES).
2) When the domestic hot water temperature is below the user configured set point, the 3-way valve will be activated
to heat the domestic water by means of the heat pump. If there is a huge demand for hot water or a high hot water
temperature setting, the booster heater (12.3) can provide auxiliary heating.
Make sure to fit the 3-way valve correctly. For more details, refer to 9.7.6 Connection for other components/For 3-way
valve SV1.
The unit can be configured so that at low outdoor temperatures, water is exclusively heated by the booster heater. This
assures that the full capacity of the heat pump is available for space heating.
Details on domestic hot water tank configuration for low outdoor temperatures (T4DHWMIN) can be found in 10.7 Field
settings/How to set the DHW MODE.
8.3 Application 3
Space cooling and heating application with a room thermostat suitable for heating/cooling changeover when connected to
the unit. Heating is provided through floor heating loops and fan coil units. Cooling is provided through the fan coil units only.
Domestic hot water is provided through the domestic hot water tank which is connected to the unit.
94
EN
OMNIA M 3.2
CAUTION
NOTE
Cod. 3QE47660 - Rev. 00 - 02/2022
22T÷30T

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