AERMEC OMNIA UL_R 27 Manual De Instrucciones E Instalación página 21

Omnia UL_R/UL_RI 27-37
17. MAINTENANCE
17.1. ROUTINE MAINTENANCE
The routine maintenance can be performed by
the user and consists of some simple operations
which will ensure the fan coil unit operates at
the maximum efficiency.
Operations:
− Externally clean every week with a damp
cloth and neutral soap; avoid any other
type of detergents or solvent.
− Weekly cleaning, if installed in dusty
environments, or fortnightly cleaning of
the electrostatically precharged filter with a
vacuum cleaner to remove the dust. Clean-
ing with running water and neutral soap is
permitted but this greatly accelerates the
discharge of the electrostatic effect; avoid
any other type of detergents or solvents.
− Replace the electrostatically precharged
filter every two years. Outside of two years
the electrostatic charge will be exhausted
and the filtration of micro-dust will stop;
the filtration capacity will be equivalent to a
normal filter.
− Visual inspection of the fan coil unit state at
every maintenance operation; any anomaly
must be advised to the service centre.
18. PROBLEMS AND SOLUTIONS
PROBLEM
Low supply air flow
Does not heat
Does not cool
The fan does not rotate
Condensation on the external structure of the unit
WARNING
For problems not detailed,
immediately call the service
centre
.
IUL_R-UL_RIPI. 2307-C6976485_00
17.2. SPECIAL MAINTENANCE
The special maintenance must only be carried
out by the Aermec service centre technicians or
personnel with the technical and professional
expertise qualifying them to undertake installa-
tion, modification, expansion and maintenance
of the systems and are able to check them in
terms of safety and functionality.
The special maintenance consists of a series of
complex operations which involve the disas-
sembly of the fan coil unit or its components
after which the fan coil unit will be returned to
maximum operating efficiency.
It is important to undertake annual checks
for the following:
Electrical checks:
− Measuring the insulation resistance of the
electrical system.
− Continuity check of the protective conduc-
tors.
Mechanical checks:
− Internal cleaning annually or before pro-
longed shut-down periods; in areas where
a higher level of air cleanliness is required
this may be done more frequently. Cleaning
CAUSE
• Wrong fan speed setting on the control panel
• Dirty filter
• Air flow obstruction (inlet and/or outlet)
• No hot water
• Wrong control panel setting
• Air flow obstruction (inlet and/or outlet)
• No cold water
• Wrong control panel setting
• Power missing
• The water has not reached operating temperature
• The temperature and humidity limits described in
"OPERATING LIMITS" have been exceeded
is of the coil, the demountable fan housing,
the blades of the fan, the drain pan and all
the parts in contact with the treated air.
− Tightening of screws. Loose screws are the
source of abnormal noise and vibration.
Before contacting the Aermec service centre for
repairs or setting up, refer to the "PROBLEMS
AND SOLUTIONS" chapter of this manual.
SOLUTION
• Select the correct fan speed on the control panel
• Clean the filter
• Remove the obstruction
• Check the boiler/heat pump unit
• Set the control panel correctly
• Remove the obstruction
• Check the chiller/heat pump unit
• Set the control panel correctly
• Check the electrical power supply
• Check the boiler/chiller/heat pump unit
• Check the thermostat setting
• Raise the water temperature above the limits
described in "OPERATING LIMITS"
EN
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