CRD0245---0570
24
English
6 Maintenance
a) The machine is designed and built to guarantee continuous
operation;however,thelifeofits components depends on the
maintenance performed;
b) when requesting assistance or spare parts, identify the ma-
chine (model and serial number) by reading the dataplate lo-
cated on the unit.
c) Circuits containing 6 kg or more of refrigerant fluid are
checked to identify leaks at least once a year.
Circuits containing 30 kg or more of refrigerant fluid are
checked to identify leaks at least once every six months.
(CE842/2006 art. 3.2.a, 3.2.b).
d) Formachinescontaining 3 kg or more of refrigerant fluid,the
operator must keep a record stating the quantity and type of
refrigerant used, an quantitiesadded and that recovered dur-
ing m aintenance operations, repairs and final disposal
(CE842/2006art.3.6).Anexampleofthisrecordsheetcanbe
downloaded from the site: www.dh---hiross.com.
6.1 General instructions
! Before any maintenance, make sure:
S the pneumatic circuit is no longer pressurized;
S the dryer is no longer powered.
Y Always use the Manufacturer’s original spare parts: other-
wise the Manufacturer is relieved of all liability regarding ma-
chine malfunctioning.
Y In case of refrigerant leakage, contact qualified and author-
ized personnel.
Y The Schrader valve must only be used in case of machine
malfunction: otherwise any damage caused by incorrect refriger-
ant charging will not be covered by the warranty.
6.2 Refrigerant Z
Charging: any damage caused by incorrect refrigerant replace-
ment carried out by unauthorized personnel will not be covered
by the warranty.
YAtnormaltemperatureandpressure,theR407Crefrigerant
is a colourless gas classified in SAFETY GROUP A1 --- EN378
(group 2 fluid according to Directive PED 97/23/EC);
GWP (Global Warming Potential) = 1652,5.
! In case of refrigerant leakage, ventilate the room.
6.3 Preventive Ma intenance Programme
To guarantee lasting maximum dryer efficiency and reliability:
Maintenance
Activity Description
Maintenance Interval
(standard opration conditions)
Activity
Daily
Weekly
4Months
12 Months
36 Months
Check POWER ON indicator is lit.
Check control panel indicators.
Check condensate drain.
Clean condenser fins.
Check electrical absorption.
Depressurize the dryer.
Complete drain maintenance.
Depressurize the dryer.
Substitute pre--- and post---filter ele-
ments.
Dryer maintenance kit.
check service
The following are available (see par. 8.4):
a) 3 years preventive maintenance kits;
b) service kits
1. compressor kits;
2. fan kits;
3. hot gas valve kits;
c) individual spare parts.
6.4 Dismantling Z
The refrigerant and the lubricating oil contained in the circuit
must be recovered in conformity with current local environmen-
tal regulations.
The refrigerant fluid is recovered before final scrapping of the
equipment (CE 842/2006 art.4.4).
%
Recycling
Disposal
structural work steel/epoxy ---polyester resins
exchanger aluminium
pipes/headers copper/aluminium/carbon steel
drain brass/PC
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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