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ENGLISH
ENGLISH
SETTING AT WORK
General Rules
To validate the
contractual warranty
, the machine must be set at work
by technicians from an authorized assistance
Before
they are called, check to make sure that all parts of the installation have been completed, the unit levelled, the wet connections
made with the relative air vent and the electrical connections made.
MAINTENANCE
General Rules
Maintenance is of extreme importance if the plant is to operate in a regular way and give fade-free service. Have extraordinary
maintenance work done by qualified and authorized personnel. Comply with the safety precautions given in the relative section
of this manual and take all the necessary precautions.
The following information is only a guide for the end user.
Routine maintenance
The inspections described below, to which the unit must be subjected, do not require specific technical know-how.
They merely include a few simple inspections involving certain parts of the unit.
Call an authorized assistance center if actual maintenance work is required.
The table below gives a recommended list of inspections which should be carried out at the indicated intervals.
DESCRIPTION
Visual inspection of the unit
Inspection of hydraulic circuit
Inspection of electrical system
Inspection of condensing system
Inspection and adjustment of op. parameters
WEEKLY
•
MONTHLY
•
•
•
EVERY SIX MONTHS
•
• Visual inspection of the structure of the unit
When checking the condition of the parts that form the structure of the unit, pay particular attention to the parts liable to rust. If
traces of rust are noted, they must be treated with rust-inhibitor paint in order to eliminate or reduce the problem. Check to make
sure that the external panels of the unit are well fixed.
Bad fixing gives rise to noise and abnormal vibrations.
• Inspection of hydraulic circuit
Visually check to make sure that there are no leaks from the hydraulic circuit. If pressure gauges are installed, check for any
pressure reductions in the system. Make sure that the unit’s water filter is clean. If the unit is operating in conjunction with the
Storage and Pumping Unit, also check to make sure that the filter in this latter is clean. Periodically clean the filters, depending
on the impurities in the water used in the system.
• Inspection of electrical system
Make sure that the power cable that connects the unit to the distribution panel is not torn, cracked or damaged in a way that
could impair its insulation.
If the unit is operating in conjunction with the Storage and Pumping Unit, also check to make sure that the connection cable is
not torn, cracked or damaged in a way that could impair its insulation.
If a cable is damaged, it must be replaced by a qualified electrician.
• Inspection of the condensing system
WARNING:
The finned pack exchanger has fins made of aluminium or some other thin material, thus even accidental contact
could cause cuts. Comply with the instructions in the relative section.
•
Condensing coils
In view of the function of this component, it is very important for the surface of the exchanger to be as free as possible from clog-
ging caused by items that could reduce the fan’s air flow rate and, thus, the performances of the unit itself. The following opera-
tions may be required:
- Remove all impurities (such as paper scraps, leaves, etc.) that could be clogging the surface of the bank either by hand or using
a brush (comply with the above mentioned safety prescriptions).
- If the dirt has deposited on the fins and is difficult to remove by hand, use a jet of compressed air or pressurized water on the
aluminium surface of the coils, remembering to direct the jet in a vertical direction to prevent the fins from being damaged.
- “Comb” the coils with the relative tool, using the appropriate comb spacing for the fins if some parts of them are bent or squas-
hed.
•
Helical electric fans
Visually inspect these parts to make sure that the electric fans are well fixed to the bearing grille and that this latter is fixed to
the structure of the unit. Bad fixing gives rise to noise and abnormal vibrations.
• Reading and adjustment of the operating parameters
This inspection can only be carried out if pressure gauges and thermometers have been installed, as indicated in the Hydraulic
layouts.
