Parker Hyperchill PCW420, User Manual

   English

1/8

PCW420-650

1 Safety

1.1  Importance of the manual

•  Keep it for the entire life of the machine.
•  Read it before any operation.
•  It is subject to changes: for updated information see the version on 
the machine.

1.2 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 re-
quired.

,

There are symbols whose meaning is given in the para. 7.

1.3 Safety instructions

! 

Every unit is equipped with an electric disconnecting switch for 

operating in safe conditions. Always use this device in order to elimi-
nate risks maintenance.

!

 The manual is intended for the end-user, only for operations 

performable with closed panels: operations requiring opening with tools 
must be carried out by skilled and qualifi ed personnel.

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 when-
ever risks of seismic phenomena exist.
Only use the unit for professional work and for its intended purpose.
The user is responsible for analysing the application aspects for prod-
uct 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 personnel and/
or improper machine use exonerate the manufacturer from all responsi-
bility 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 regarding safety of the system.
The manufacturer declines any liability for damage due to alterations 
and/or changes to the packing.
It is the responsibility of the user to ensure that the specifi cations 
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.

IMPORTANT: The manufacturer reserves the right to modify this 
manual at any time. 

For the most comprehensive and updated information, the user is 
advised to consult the manual supplied with the unit.

!

CAUTION: Moving parts, hot parts and risk of electric shock: 

disconnect power before opening the cover.

1.4 Residual risks

The installation, start up, stopping and maintenance of the machine 
must be performed in accordance with the information and instructions 
given in the technical documentation supplied and always in such a 
way to avoid the creation of a hazardous situation. 
The risks that it has not been possible to eliminate in the design stage 
are listed in the following table.

part

affected

residual

risk

manner of

exposure

precautions

heat exchanger 
coil

small cuts

contact

avoid contact, wear 
protective gloves

fan grille and 
fan

lesions

insertion of pointed 
objects through the 
grille while the fan is 
in operation

ndo not poke objects 
of any type through the 
fan grille or place any 
objects on the grille

inside the 
unit:
compressor 
and dis-
charge pipe

burns

contact

avoid contact, wear 
protective gloves

inside the 
unit:
metal parts 
and electrical 
wires

intoxication, 
electrical 
shock, seri-
ous burn

defects in the 
insulation of the 
power supply lines 
upstream of the 
electrical panel; live 
metal parts

adequate electrical 
protection of the power 
supply line; ensure 
metal parts are properly 
connected to earth

outside the 
unit:
area sur-
rounding the 
unit

intoxica-
tion, serious 
burns

iire due to short 
circuit or overheat-
ing of the supply 
line upstream of 
the unit’s electrical 
panel

sensure conductor 
cross-sectional areas 
and the supply line 
protection system 
conform to applicable 
regulations

Index

1 Safety

1.1  Importance of the manual
1.2 Warning signals
1.3 Safety instructions
1.4 Residual risks

2 Introduction

2.1 Transport
2.2 Handling
2.3 Inspection
2.4 Storage

3 Installation

3.1 Operating space
3.2 Versions
3.3 Water circuit
3.4 Electrical circuit
3.5  Centrifugal version (C)
3.6  Water-cooled version (W)

4 Control

4.1 Control panel
4.2  Starting the chiller
4.3  Stopping the chiller
4.4 Parameter settings
4.5 Parameter management
4.6 Alarms management
4.7 Automatic restart

5 Maintenance

5.1 General instructions
5.2 Preventive maintenance
5.3 Refrigerant
5.4 Dismantling

6 Troubleshooting

7 Appendix

7.1 Legend
7.2   Handling
7.3 Operating space
7.4 Technical data
7.5 Dimensions
7.6 Spare parts
7.7 Circuit diagram
7.8 Wiring diagram