English
7
DS2-30
6 Maintenance
a) e machine is designed and built to guarantee continuous opera-
tion; however, the life of its components depends on the maintenance
performed;
b) when requesting assistance or spare parts, identify the machine
(model and serial number) by reading the data plate located on the unit.
c) Circuits containing 3 kg or more of refriger-
ant uid are checked to identify leaks at least once a year.
Circuits containing 30 kg or more of refrigerant uid are checked to
identify leaks at least once every six months. (CE842/2006 art. 3.2.a,
3.2.b).
d) For machines containing 3 kg or more of refrigerant uid, the opera-
tor must keep a record stating the quantity and type of refrigerant used,
an quantities added and that recovered during maintenance operations,
repairs and nal disposal (CE842/2006 art. 3.6).
6.1 General instructions
! Before any maintenance, make sure:
• the pneumatic circuit is no longer pressurized;
• the dryer is disconnected from the main power supply
.
Y Always use the Manufacturer’s original spare parts: otherwise the
Manufacturer is relieved of all liability regarding machine malfunction-
ing
Y In case of refrigerant leakage, contact quali ed and authorized per-
sonnel.
Y e Schrader valve must only be used in case of machine malfunc-
tion: otherwise any damage caused by incorrect refrigerant charging will
not be covered by the warranty.
6.2 Refrigerant.
Charging: any damage caused by incorrect refrigerant replacement car-
ried out by unauthorized personnel will not be covered by the warranty.
Z
Y
At normal temperature and pressure, the R134a refrigerant is a
colourless gas classi ed in SAFETY GROUP A1 - EN378 (group 2 uid
according to Directive PED 97/23/EC)
GWP (Global Warming Potential) = 1300.
! In case of refrigerant leakage, ventilate the room.
6.3 Preventive Maintenance Programme
To guarantee lasting maximum dryer e ciency and reliability
Maintenance
Activity Description
Maintenance Interval
(standard operating conditions)
Activity
Check Service
Daily
Weekly
4 Months
12 Months
Check POWER ON indicator is lit.
Check control panel indicators.
Check condensate drain.
Clean condenser ns.
Check electrical absorption.
Depressurize the dryer. Complete
drain maintenance.
Depressurize the dryer. Replace pre-
and post- lter elements.
e following are available (see par. 8.4):
a) compressor kits;
b) fan kits;
c) automatic expansion valve kits;
d) individual spare parts.
6.4 Dismantling
e refrigerant and the lubricating oil contained in the circuit must be
recovered in conformity with current local environmental regulations.
e refrigerant uid is recovered before nal scrapping of the equipment
(CE 842/2006 art.4.4).
%
Recycling Disposal Z
structural work steel/epoxy-polyester resins
exchanger aluminium
pipes aluminium/copper
drain polyamide
exchanger insulation EPS (sintered polystyrene)
pipe insulation synthetic rubber
compressor steel/copper/aluminium/oil
condenser steel/copper/aluminium
refrigerant R134a
valves brass
electrical cables copper/PVC
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