General Instructions; Preventive Maintenance Programme - PSE 120 Manual De Uso

7 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 CO2 are checked to identify
leaks at least once a year.
Circuits containing 50t < xx < 500t di CO2 are checked to identify
leaks at least once every six months. ((EU) No. 517/2014 art. 4.3.a,
4.3.b).
d) For machines containing 5t CO2 ore more, the operator must keep a
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.

7.1 General instructions

!
Before any maintenance, make sure:
• the pneumatic circuit is no longer pressurized;
• the dryer is disconnected from the main power supply
Y
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.
7.2 Refrigerant.
Charging: any damage caused by incorrect refrigerant replacement car-
ried out by unauthorized personnel will not be covered by the warranty.
Z
Y
The equipment contains fl uorinated greenhouse gases.
At normal temperature and pressure, the R513A 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) = 573.
!
In case of refrigerant leakage, ventilate the room.
English

7.3 Preventive Maintenance Programme

To guarantee lasting maximum dryer effi ciency and reliability
Maintenance
Activity Description (standard operating condi-
Activity
Check Service
Check POWER ON indicator is lit.
Check control panel indicators.
Check condensate drain.
Clean condenser fi ns.
Verify that the crankcase heater is
correctly 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 sensors.
Replace if necessary.
Dryer maintenance kit.
The following are available (see par. 9.4):
a) 3 years preventive maintenance kits;
b) service kit
• compressor kits;
• fan kits;
• hot gas valve kits;
• water condenser kits;
c) individual spare parts.
PSE 120-350
7.4 Dismantling
The refrigerant and the lubricating oil contained in the circuit must be
recovered in conformity with current local environmental regulations.
Maintenance Interval
The refrigerant fl uid is recovered before fi nal scrapping of the equipment
((EU) No. 517/2014 art.8).
tions)
structural work
exchanger
pipes/headers
drain
exchanger insulation
pipe insulation
compressor
condenser
refrigerant
valves
electrical cables
Z
%
Recycling Disposal
steel/epoxy-polyester resins
aluminium
copper/aluminium/carbon steel
polyamide
EPS (sintered polystyrene)
synthetic rubber
steel/copper/aluminium/oil
copper/aluminium
R513A
brass
copper/PVC
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