6
Maintenance
a) The machine is designed and built to guarantee continuous opera-
tion; however, the life of its components depends on the mainte-
nance performed.
b) Z 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 5t < xx < 50t of CO
are checked to identify
2
leaks at least once a year.
Circuits containing 50t < xx < 500t di CO
2
leaks at least once every six months. ((EU) No. 517/2014 art. 4.3.a,
4.3.b).
d) For machines containing 5t CO
ore more, the operator must keep a
2
record stating the quantity and type of refrigerant used, an quantities
added and that recovered during maintenance operations, repairs
and fi nal disposal ((EU) No. 517/2014 art. 6). .An example of this
record sheet can be downloaded from the site: www.polewr.com.
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 malfunctioning
Y
In case of refrigerant leakage, contact qualifi ed and authorized per-
sonnel.
Y
The 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
Th e equipment contains fl uorinated greenhouse
gases.
At normal temperature and pressure, the R407c refrigerant is a colour-
less gas classifi ed in SAFETY GROUP A1 - EN378 (group 2 fl uid accord-
ing to Directive PED 2014/68/EU)
GWP (Global Warming Potential) = 1774.
!
In case of refrigerant leakage, ventilate the room.
English
6.3 Preventive Maintenance Programme
To guarantee lasting maximum dryer effi ciency and reliability
Maintenance
Activity Description
are checked to identify
Check
Service
Check POWER ON indicator is lit.
Check control panel indicators.
Check condensate drain.
Clean condenser fi ns.
Verify that the crakcase heater is cor-
rectly positioned
Check electrical absorption.
Check refrigerant leaks.
Depressurize the dryer. Complete
drain maintenance.
Depressurize the dryer. Replace pre-
and post-fi lter elements.
Check
temperature
Replace if necessary.
Dryer maintenance kit.
The following are available (see par. 8.4):
a) 3 years preventive maintenance kits;
b) service kit
• compressor kits;
• fan kits;
• hot gas valve kits;
• water condenser kits;
c) individual spare parts.
Maintenance Interval
(standard operating condi-
tions)
Activity
sensors.
PSH120-1200
6.4 Dismantling
The refrigerant and the lubricating oil contained in the circuit must be
recovered in conformity with current local environmental regulations.
The refrigerant fl uid is recovered before fi nal scrapping of the equipment
((EU) No. 517/2014 art.8).
%
Recycling Disposal
structural work
steel/epoxy-polyester resins
exchanger
aluminium
pipes/headers
copper/aluminium/carbon steel
drain
polyamide
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
Z
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