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Ferroli OMNIA M 3.2 - User Manual

Ferroli OMNIA M 3.2
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Cod. 3QE46330 - Rev. 00 - 07/2020
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R32
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OMNIA M 3.2
POMPE DI CALORE REVERSIBILI PER INSTALLAZIONE ESTERNA
CON COMPRESSORE DC INVERTER
REVERSIBLE HEAT PUMP UNITS FOR OUTDOOR INSTALLATION
WITH DC INVERTER COMPRESSOR
BOMBA DE CALOR REVERSIBLE PARA INSTALACIÓN EXTERIOR
CON COMPRESOR DC INVERTER
BOMBA DE CALOR REVERSÍVEL PARA AMBIENTE EXTERNO
COM COMPRESSOR DC INVERTER
MANUALE DI INSTALLAZIONE E USO
INSTALLATION AND OWNERS MANUAL
MANUAL DE INSTALACIÓN Y DEL PROPIETARIO
MANUAL DE INSTALAÇÃO E DO PROPRIETÁRIO
IT
EN
ES
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Scan the QR code to read the manual in other language
Escanee el código QR para leerel manual en otro idioma
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Table of Contents

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Questions and Answers

  • A
    Aaron HarrisAug 14, 2025
    What to do if my Ferroli Heat Pump unit is turned on but not heating or cooling as expected?
    • J
      Jessica FryeAug 14, 2025
      If your Ferroli Heat Pump isn't heating or cooling as expected, there are several potential causes. First, the temperature setting might be incorrect; check the parameters T4HMAX, T4HMIN in heat mode, T4CMAX, T4CMIN in cool mode, and T4DHWMAX, T4DHWMIN in DHW mode. Second, the water flow could be too low; ensure all shut-off valves in the water circuit are in the correct position. Finally, the water volume in the installation might be insufficient; verify that it exceeds the minimum required value.
  • J
    jsandersAug 17, 2025
    Why is my Ferroli OMNIA M 3.2 pump making noise (cavitation)?
    • E
      Erik WhiteAug 17, 2025
      If the pump in your Ferroli Heat Pump is making noise (cavitation), it could be due to air in the system. In this case you should purge air. Alternatively, the water pressure at the pump inlet might be too low, so you should check the water pressure.
  • L
    Lisa BrownAug 21, 2025
    What to do if my Ferroli OMNIA M 3.2 Heat Pump has space heating capacity shortage at low outdoor temperatures?
    • M
      Michael HoAug 21, 2025
      If you're experiencing a space heating capacity shortage with your Ferroli Heat Pump at low outdoor temperatures, it might be because the backup heater operation isn't activated. Check that the "OTHER HEATING SOURCE/ BACKUP HEATER" is enabled. Another potential cause is that too much heat pump capacity is being used for heating domestic hot water. In this case, check that the "t_DHWHP_MAX" and "t_DHWHP_RESTRICT" are configured appropriately.
  • E
    elizabethparrishAug 25, 2025
    What to do if the water pressure relief valve opens in my Ferroli OMNIA M 3.2 Heat Pump?
    • M
      Matthew ArmstrongAug 25, 2025
      If the water pressure relief valve opens in your Ferroli Heat Pump, it could be that the expansion vessel is broken, so replace it. Alternatively, the filling water pressure in the installation might be higher than 0.3MPa. Make sure that the filling water pressure in the installation is about 0.10~0.20MPa.
  • S
    spalmerAug 29, 2025
    What to do if the water pressure relief valve leaks in my Ferroli OMNIA M 3.2?
    • J
      Joseph TapiaAug 29, 2025
      If the water pressure relief valve is leaking in your Ferroli Heat Pump, it's possible that dirt is blocking the water pressure relief valve outlet. Check for correct operation of the pressure relief valve by turning the red knob on the valve counter clockWise.
  • A
    Adam MedinaSep 1, 2025
    How to fix if heat mode can’t change to DHW mode immediately in Ferroli OMNIA M 3.2 Heat Pump?
    • B
      Brittany Tran MDSep 2, 2025
      If the heat mode on your Ferroli Heat Pump can't change to DHW mode immediately, it might be because the volume of the tank is too small, and the location of the water temperature probe is not high enough. Set the maximum value and set WB'+'3B5(675,&7 to the minimum value.
  • E
    Elizabeth BlackburnSep 5, 2025
    Why Ferroli OMNIA M 3.2 unit is turned on but the compressor is not starting (space heating or domestic water heating)?
    • M
      Michael JamesSep 5, 2025
      If your Ferroli Heat Pump's compressor isn't starting for space or domestic water heating, the unit may be operating outside of its operational range because the water temperature is too low. In this case, the system utilizes the backup heater to reach the minimum water temperature first (12°C).
  • T
    Travis JohnstonSep 9, 2025
    How to fix if DHW mode can’t change to Heat mode immediately in Ferroli OMNIA M 3.2?
    • J
      Joseph HernandezSep 9, 2025
      If the DHW mode on your Ferroli Heat Pump can't change to Heat mode immediately, it could be that the heat exchanger for space heating is not big enough. Set WB'+'3B0$; to the minimum value. Also, the space heating load may be small, which is normal, and no heating is needed.

Summary

1 SAFETY PRECAUTIONS

4 BEFORE INSTALLATION

5 IMPORTANT INFORMATION FOR THE REFRIGERANT

6 INSTALLATION SITE

6.1 Selecting a location in cold climates

Guidelines for choosing suitable locations for outdoor units in colder regions.

6.2 Selecting a location in hot climates

Recommendations for outdoor unit placement in warmer climates to avoid heat effects.

9.3 Electronic control box

9.3.1 Main control board of hydraulic module

9.3.2 1-phase for 4-16 kW units

9.3.3 3-phase for 12;14;16 kW units

9.3.4 3-phase for 12;14;16 kW units

9.4 Water piping

9.4.1 Check the water circuit

9.4.3 Water circuit connection

9.4.4 Water circuit anti-freeze protection

9.7 Field wiring

9.7.1 Precautions on electrical wiring work

Key safety considerations and best practices for electrical wiring.

9.7.3 Precautions on wiring of power supply

Specific safety advice for connecting the power supply wiring.

9.7.4 Safety device requirment

10 START-UP AND CONFIGURATION

10.1 Climate related curves

Defines how climate affects water temperature settings and curves.

10.2 DIP switch settings overview

Explanation of DIP switch functions for system configuration.

10.3 Initial start-up at low outdoor ambient temperature

10.4 Pre-operation checks

A checklist of essential checks before powering on the unit.

10.5 The circulation pump

10.6 Field settings

Detailed configuration options accessible via the service interface.

10.6.1 DHW MODE SETTING

10.6.2 COOL MODE SETTING

10.6.3 HEAT MODE SETTING

10.6.4 AUTO MODE SETTING

10.6.5 TEMP. TYPE SETTING

10.6.6 ROOM THERMOSTAT

10.6.7 OTHER HEATING SOURCE

10.6.10 RESTORE FACTORY SETTINGS

10.6.11 TEST RUN

11 TEST RUN AND FINAL CHECKS

11.1 Final checks

Essential checks to perform after installation before unit activation.

11.2 Test run operation (manually)

Steps for manually operating the unit to test key functions.

12 MAINTENANCE AND SERVICE

13 TROUBLE SHOOTING

13.1 General guidelines

13.2 General symptoms

Lists common unit symptoms and their potential causes and corrective actions.

14 TECHNICAL SPECIFICATIONS

14.1 General

14.2 Electrical specifications

15 INFORMATION SERVICING

Ferroli OMNIA M 3.2 Specifications

General IconGeneral
TypeAir-to-water heat pump
RefrigerantR32
Heating Capacity3.2 kW
Weight45 kg
Power supply230V, 50Hz

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