Product Maintenance - Lamborghini Caloreclima DORA 90LT Manual De Uso

10.1

Product maintenance

Any maintenance operation on the product must be carried out
by qualified personnel having an appropriate Refrigeration En-
gineer License regarding the knowledge and management of
plants containing HC gases such as R290 (Propane). During
any routine or extraordinary maintenance or failure the manu-
facturer recommends that maintenance personnel use a suit-
able HC gas detector equipped with the necessary safety devic-
es to prevent ignition in the presence of a potentially explosive
atmosphere. Always ensure adequate ventilation of the installa-
tion compartment before carrying out any work on the product,
as the refrigerant gas used is odorless.
Maintenance personnel must therefore implement all the pro-
cedures and precautions necessary to prevent any dangerous
situation in the presence of a flammable gas.
The product does not have a charging or recharging valve, as
this operation cannot and must not be performed for any reason
on site. In case of a leak in the refrigeration circuit or if it is par-
tially or entirely empty, the maintenance technician must have
the entire system replaced.
During maintenance operations, the operator in charge must
check the following points.
Installation conditions
Check that:
• The dimensions of the installation compartment are those
specified in this manual.
• Sufficient ventilation of the room is ensured.
• The markings and graphic signs on the product are present
and legible.
• There are no signs of damage or corrosion on the product
that could impair its operation or cause refrigerant gas to es-
cape.
In case of differences in the product installation conditions,
maintenance personnel are required to inform the owner and
proceed with elimination of the non-conformities found.
98
EN
Checks and repairs of electrical components
Check that:
• There are no conditions of imminent danger for the operator;
• The circuit is not powered.
• If it is not possible to operate without power supply, make
sure the owner has been notified regarding the situation.
• The electric capacitors have been safely discharged without
producing sparks.
• There is continuity in the ground connection.
• The electrical components are replaced only with original
spare parts.
• No cuts or joints are made on the cables of the electrical
components.
• The cables and wires do not have any damage which could
compromise the integrity of the product and the safety of peo-
ple and/or property.
Note: Only original replacement electrical components are guar-
anteed by the manufacturer as safe and tested by a third party
for use with flammable refrigerants
Leak detection
• Do not use any kind of flame to detect refrigerant leakage.
• Use electric detectors only if sure of their efficiency and safe-
ty in an explosive environment; for this purpose the instru-
ment must be able to detect an R290 leak equivalent to a
maximum of 25% of the LFL (Lower Flammability Level).
• Alternatively, specific leak detector sprays can be used for
refrigerant gases; the product used must be non-corrosive
type.
In order to be used safely, the leak detection instruments must
have a calibration tool normally called a calibrated leak. Check-
ing the sensitivity of the detector with the aid of the calibration
tool must be carried out far from the place of installation in order
to ensurer correct calibration.
cod. 3541T620 - Rev. 03 - 05/2020
DORA
90LT - 120LT