250 5
English
6 Maintenance
• e machine is designed and built to guarantee continuous opera-
tion; however, the life of its components depends on the maintenance
performed;
• when requesting assistance or spare parts, identify the machine
(model and serial number) by reading the data plate located on the
unit.
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
! Risk of electric shock can cause injury or death.
Disconnect all remote electric power supplies before servicing.
.
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 R407C 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) = 1652,5.
! In case of refrigerant leakage, ventilate the room.
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
36 Months
Check POWER ON indicator
is lit.
Check control panel indicators.
Check condensate drain.
Clean condenser ns.
Check electrical absorption.
Check refrigerant leaks
Depressurize the dryer.
Complete drain maintenance..
Depressurize the dryer. Replace
pre- and post- lter elements.
Check temperature sensor.
Replace if necessary.
Dryer maintenance kit.
e following are available (see par. 8.4):
a) 3 years preventive maintenance
b) service kit
• compressor kits;
• fan kits;
• hot gas valve kits;
b) individual spare parts.
6.3 Dismantling
e refrigerant and the lubricating oil contained in the circuit must be
recovered in conformity with current local environmental regulations.
%
Recycling Disposal Z
structural work steel/epoxy-polyester resins
exchanger aluminium
pipes aluminium/copper/carbon steel
drain
exchanger insulation EPS (sintered polystyrene)
pipe insulation synthetic rubber
compressor steel/copper/aluminium/oil
condenser steel/copper/aluminium
refrigerant R407C
valves brass
electrical cables copper/PVC
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