Safety And Maintenance - Ferroli OMNIA H Series Installation, Maintenance And User Manual

General notes
In order to ensure optimal availability of the unit, a number of checks and inspections on the unit and the fi eld wiring have
to be carried out at regular intervals.
CAUTION
Disconnect the power supply before carrying out any installation or maintenance operation.
ELECTRIC SHOCK
• 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
suffi cient time for the temperature of the pipes to drop to nor-
mal 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, electrical resistors,
etc.).
• Some electrical components may be very hot.
• Due to the risk of high residual voltage, after having discon-
nected 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 fi re.
• When the service panels are removed, live parts could easily
be touched by mistake.
• Never leave the unit unattended during installation or mainte-
nance 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 devi-
ces 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 infl ammable substances
near the unit.
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
Refrigerant pipes
Electrical cables, metal parts
Heat exchange coils
Fans

SAFETY AND MAINTENANCE

Residue hazard
Burns
Explosion
Ice burns
Electrocution, serious
burns
Residue hazard
Burns
Explosion
Ice burns
Electrocution, serious burns
Cuts
Cuts
• 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
qualifi ed personnel.
Electrical cabinet
• Carry out a thorough visual inspection of the components of
the electrical panel to check for damaged or incorrectly con-
nected components or cables (check the tightness of the ter-
minal 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 (fo-
otwear, gloves, helmet, etc.) may be allowed to access the ma-
chine. 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 neu-
tralize them.
Mode
Contact with the pipes
Excessive pressure
Leaking refrigerant
Defective cable insulation,
live metal parts
Mode
Contact with the pipes and/or com-
pressor
Excessive pressure
Leaking refrigerant
Defective cable insulation, live metal
parts
Contact
Contact with the skin
Precautions
Avoid contact by wearing
protective gloves
Turn off the machine, check the high pressure
switch and safety valve, the fans and condenser
Do not pull on the pipes
Adequate electrical protection
(correctly ground the unit)
Precautions
Avoid contact by wearing
protective gloves
Turn off the machine,
check the high pressure switch
and safety valve,
the fans and condenser
Do not pull on the pipes
Adequate electrical protection (cor-
rectly ground the unit)
Wear protective gloves
Do not push the hands or objects
through the fan grille
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