Parker PDRD250 Manual De Uso página 3

Index
1. Safety
2. Introduction
3. Installation
4. Commissioning
5. Control
6. Maintenance
7. Troubleshooting
8. Appendix
,
There are symbols whose meaning is
given in the paragraph. 8.1.
8.1 Legend
8.2 Installation diagram
8.3 Technical data
8.4 Spare parts list
8.5 Exploded drawings
8.6 Dimensional drawings
8.7 Refrigerant circuits
8.8 Wiring diagram
1 Safety
Importance of the manual
S Keep it for the entire life of the machine.
S Read it before any operation.
S It is subject to changes: for updated information see the ver-
sion on the unit.
Warning signals
!
Instruction for avoiding danger to persons.
Y
Instruction for avoiding damage to the equipment.
Z
The presence of a skilled or authorized technician is required.
English
Safety instructions
!
Every unit is equipped with an electric disconnecting switch
for operating in safe conditions. Always use this device in order
to eliminate risks maintenance.
!
The manual is intended for the end--- user, only for opera-
tions performable with closed panels: operations requiring open-
ing with tools must be carried out by skilled and qualified person-
nel.
Y
Do not exceed the design limits given on the dataplate.
! Y
It is the user's responsibility to avoid loads different
from the internal static pressure. The unit must be appropriately
protected whenever risks of seismic phenomena exist.
!
The safety devices on the compressed air circuit must be pro-
vided for by the user.
Only use the unit for professional work and for its intended pur-
pose.
The user is responsible for analysing the application aspects for
product installation, and following all the applicable industrial
and safety standards and regulations contained in the product
instruction manual or other documentation supplied with the
unit.
Tampering or replacement of any parts by unauthorised person-
nel and/or improper machine use exonerate the manufacturer
from all responsibility and invalidate the warranty.
The manufacturer declines and present or future liability for
damage to persons, things and the machine, due to negligence of
the operators, non--- compliance with all the instructions given in
this manual, and non--- application of current regulations regard-
ing safety of the system.
The manufacturer declines any liability for damage due to alter-
ations and/or changes to the packing.
It is the responsibility of the user to ensure that the specifications
provided for the selection of the unit or components and/or
options are fully comprehensive for the correct or foreseeable
use of the machine itself or its components.
2 Introduction
This manual refers to refrigeration dryers designed to guarantee
high quality in the treatment of compressed air.
2.1 Transport
The packed unit must:
a) remain upright;
b) be protected against atmospheric agents;
c) be protected against impacts.
2.2 Handling
Use a fork--- lift truck suitable for the weight to be lifted, avoiding
any type of impact.
2.3 Inspection
a) All the units are assembled, wired, charged with refrigerant
and oil and tested in the factory;
b) on receiving the machine check its condition: immediately
notify the transport company in case of any damage;
c) unpack the unit as close as possible to the place of installa-
tion.
2.4 Storage
If several units have to stacked, follow the notes given on the
packing. Keep the unit packed in a clean place protected from
damp and bad weather.
1
PDRD250