GALILEI GIANO 70, User And Maintenance Manual

Page: 4 / 48

Cod. 80000680 – 23.04.2013
Warning!!
In case the cable or the plug is damaged, ask for a prompt replacement by qualified
maintenance personnel.
SERVICING, MAINTENANCE AND REFRIGERANT HANDLING
R290 is classified as flammable refrigerant of Class A3 according to ANSI/ASHRAE. It is a highly
flammable and very easy to ignite. It can burn with explosive impacts.
R290 in contact with air can cause a risk of fire or explosion in presence of
open flames
or
sparks
generated by electrical equipment
Servicing can be only performed by
qualified personnel holding a valid certificate from an
accredited assessment authority which authorises:
- the competence to work on and break into a R290 refrigeration circuit
- the competence to handle refrigerants (including hydrocarbons) safely in accordance with the
EN13313:2011
Service intervention must be carried out considering the mentioned above risk:
do not use electric
tools and open flames .
Components which require substitution: only use
original spare parts for they have been
specifically approved for the use with this kind of refrigerant gas.
The refrigerant circuit is hermetically sealed (closed loop) therefore refrigerant filling, draining or
substitution of some components is
not possible without breaking the vacuum
. In such a case:
- the substitution cannot be performed indoor at the customer’s premises.
- the cabinet should be moved to a controlled workshop environment suitable for the type of
repair where work can be conducted safely.
- In any case, work in
confined spaces must be avoided. Work area can be in the open or,
alternatively, must be properly ventilated . Ventilation should be able to safely disperse any
released refrigerant and expel it externally to the atmosphere.
While working on cabinet working with R290 during which the refrigerant can be possibly released
to the surrounding space, all possible
ignition sources , including cigarette smoking, must be
reasonably far away from the place of installation, maintenance or disposal,
In case hot work is required (welding, brazing)
best practice must be applied
. This should require
the following procedure to avoid risk of fire or explosion.
-
remove refrigerant
- purge the circuit (with inert gas)
- evacuate
- purge again with inert gas
- open the circuit by cutting (or brazing)
Operator must be properly skilled and authorized to perform hot works on systems working with
flammable refrigerants.
For Split-Systems: In order to reduce flammability hazards the installation of this appliance must
only be carried out by a suitably qualified person.