Maintenance; General Notes - Ferroli OMNIA HYBRID C Installation, Maintenance And User Manual

Reversible hybrid air-water heat pumps for split installation with instantaneous dhw production

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15. MAINTENANCE

15.1 General notes

In order to ensure optimal availability of the unit, a number of checks and inspections on the unit and the field wiring have to be carried out at regular intervals.

IMPORTANT

ALL MAINTENANCE WORK AND REPLACEMENTS MUST BE CARRIED OUT BY SKILLED QUALIFIED PER-

SONNEL.

Before carrying out any operation inside the indoor unit, disconnect the power and close the gas cock upstream.

Otherwise there may be a danger of explosion, electric shock, suffocation or poisoning.

Do not touch the refrigerant circuit pipes and the internal parts (pump, safety valve, etc.) during and immediately after switching off the unit as they can be very hot or

very cold, causing scucking or burning or freezing. To avoid injury, allow sufficient time for the temperature of the pipes to drop to normal values and wear protective

gloves.

Before carrying out any maintenance or repair work, always disconnect the power supply to the unit and to all electrical loads (pumps, valves, electric boosters, elec-

trical resistors, etc.).

Some electrical components may be very hot.

Due to the risk of high residual voltage, after having disconnected the power supply to the outdoor unit, wait at least 10 minutes before touching live parts.

The compressor oil heater can work even if the compressor is stopped.

Make sure not to touch powered electrical cables.

Do not wash the unit. This may cause electric shock or fire.

When the service panels are removed, live parts could easily be touched by mistake.

Never leave the unit unattended during installation or maintenance when the service panel has been removed.

It is not allowed to tamper with or modify any component, nor the settings of the intervention values of the protection devices installed in the unit.

Do not pull, disconnect, twist the electric cables coming from the unit even if disconnected from the power supply.

It is forbidden to leave containers of inflammable substances near the unit.

Do not touch the appliance with bare feet or with wet or moist parts of the body.

The checks described must be performed at least once a year by qualified personnel.

Electrical cabinet

Carry out a thorough visual inspection of the components of the electrical panel to check for damaged or incorrectly connected components or cables (check the

tightness of the terminal screws).

Residual Risks

The machines has been designed with a view to reducing the risks to persons and the environment in which it is installed, to the minimum. To eliminate residual risks,

it is therefore advisable to become as familiar as possible with the machine in order to avoid accidents that could cause injuries to persons and/or damage to property.

a. Access to the unit

Only qualified persons who are familiar with this type of machine and who are equipped with the necessary safety protections (footwear, gloves, helmet, etc.) may

be allowed to access the machine. Moreover, in order to operate, these persons must have been authorized by the owner of the machine and be recognized by the

actual Manufacturer.

b. Elements of risk

The machine has been designed and built so as not to create any condition of risk. However, residual risks are impossible to eliminate during the designing phase and

are therefore listed in the following table along with the instructions about how to neutralize them.

Indoor unit residual risks

Part in question

Refrigerant

and hydraulic pipes

Refrigerant pipes, plate heat exchanger.

Refrigerant pipes

Electrical cables, metal parts

Outdoor unit residual risks

Part in question

Compressor and delivery pipe

Discharg pipes and coil