250
5
English
6 Maintenance
• Th
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 qualifi ed and authorized per-
sonnel.
Y
Th
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 classifi ed in SAFETY GROUP A1 - EN378 (group 2 fl 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 effi
ciency and reliability
Maintenance
Activity Description
Maintenance Interval
(standard operating conditions
)
Activity
Check
Service
Da
ily
W
eek
ly
4 M
on
ths
12 M
on
ths
36 M
on
ths
Check POWER ON indicator
is lit.
Check control panel indicators.
Check condensate drain.
Clean condenser fi ns.
Check electrical absorption.
Check refrigerant leaks
Depressurize the dryer.
Complete drain maintenance..
Depressurize the dryer. Replace
pre- and post-fi lter elements.
Check temperature sensor.
Replace if necessary.
Dryer maintenance kit.
Th
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
Th
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
Summary of Contents for 250
Page 2: ......
Page 27: ...250 25 8 5 Exploded drawing 250 2 3 4 B1 9 6 12 15 B3 1 8 QS1 A B C D E ...
Page 28: ...250 26 8 6 Dimensional 250 i n c h e s mm c e n t e r o f g r a v i t y p o s i t i o n ...
Page 29: ...250 27 8 7 Refrigerant circuit 250 A1 ...
Page 30: ...250 28 8 8 Wiring diagram 230V 1Ph 60Hz ...
Page 31: ...250 29 8 8 Wiring diagram 230V 1Ph 60Hz ...
Page 32: ...250 30 8 8 Wiring diagram 230V 1Ph 60Hz ...
Page 33: ...250 31 8 8 Wiring diagram 230V 1Ph 60Hz ...
Page 34: ...250 32 8 8 Wiring diagram 230V 1Ph 60Hz 5x20 24V 1A T ...
Page 35: ...250 33 8 8 Wiring diagram 230V 3Ph 60Hz ...
Page 36: ...250 34 8 8 Wiring diagram 230V 3Ph 60Hz ...
Page 37: ...250 35 8 8 Wiring diagram 230V 3Ph 60Hz ...
Page 38: ...250 36 8 8 Wiring diagram 230V 3Ph 60Hz ...
Page 39: ...250 37 8 8 Wiring diagram 230V 3Ph 60Hz ...
Page 40: ...250 38 8 8 Wiring diagram 230V 3Ph 60Hz ...
Page 41: ...250 39 8 8 Wiring diagram 460V 3Ph 60Hz ...
Page 42: ...250 40 8 8 Wiring diagram 460V 3Ph 60Hz ...
Page 43: ...250 41 8 8 Wiring diagram 460V 3Ph 60Hz ...
Page 44: ...250 42 8 8 Wiring diagram 460V 3Ph 60Hz ...
Page 45: ...250 43 8 8 Wiring diagram 460V 3Ph 60Hz ...
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