DORA TECH
90 LT - 120 LT
cod. 3540000800 - Rev. 02 - 09/2023
106
EN
OBLIGATION
R290
The unit must be installed, op-
erated and placed in an installa-
tion compartment with minimum
height of not less than 2 m. The
overall volume of the installation
compartment must be greater
than 20 m
3
.
The air inlet and outlet of the ap-
pliance must be channelled to
the external environment as in-
dicated in paragraph 6.6 on page
R290
The product is supplied with an
R290 refrigerant charge of 0.15
kg; any recharging operations
can only be performed at the
manufacturer's production site.
No repairs/replacements are al-
lowed on components that are
an integral part of the refrigerant
circuit.
8.2 FIRE RISK
The product must be installed in
a room equipped with adequate
air change to prevent the risk of
fire in case of a refrigerant gas
leak.
If the above is not possible, the
installer must carry out the nec-
essary work to ensure that no re-
frigerant gas stagnation occurs.
Periodically check that there are
no obstructions in the openings
that ensure the change of air in-
side the installation room.
The product must not be installed
in a compartment where there are
naked flames, e.g. open-chamber
gas boilers, wood stoves, elec-
tric stoves and in general any
other possible source of ignition.
Smoking near or inside the in-
stallation compartment is pro-
hibited.
Operating with naked flames
near or inside the installation
compartment is prohibited.
8.3 MAINTENANCE
EXPERT
TECHNI-
CIAN
R290
Any intervention on the de-
vice, including disposal, must
be performed by qualified per-
sonnel with a suitable Refrig-
eration Technician's Licence
aimed at the knowledge and
management of systems con-
taining HC type gases such as
R290 (Propane).
During any routine or extraordinary maintenance or failure the
manufacturer recommends that maintenance personnel use a
suitable HC gas detector equipped with the necessary safety
devices to prevent ignition in the presence of a potentially explo-
sive atmosphere.
Always ensure adequate ventilation of the installation compart-
ment before carrying out any work on the product, as the refrig-
erant 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.
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