Stulz WSA Explorer User manual

Index i09
Issue 01.2019
WSA Explorer
Original instructions
Water cooled liquid chillers
400V / ~3 / 50Hz

2EN/01.2019/i09 © STULZ S.p.A. – all rights reserved
WSA EXPLORER ORIGINAL INSTRUCTIONS
ABOUT STULZ
Since it was founded in 1947, the STULZ company has
evolved into one of the world’s leading system suppliers of
air-conditioning technology.
Since 1974 the group has seen continual international
expansion of its air conditioning technology business, spe-
cialising in A/C for data centres and telecommunications
installations.
STULZ has ten production plants (2 in Germany, Italy,
the USA, Great Britain, Spain, 2 in China, Brazil and India)
and twenty subsidiaries (in Germany, France, Italy, Great
Britain, Belgium, Brazil, the Netherlands, New Zealand,
Mexico, Austria, Poland, Spain, Singapore, China, India,
Indonesia, South Africa, Sweden, Australia and the USA).
The company also co-operates with sales and service
partners in over 140 other countries, and therefore boasts
an international network of air-conditioning specialists.
STULZ S.p.A.
via Torricelli, 3
37067 Valeggio Sul Mincio
Verona - Italy

3© STULZ S.p.A. – all rights reservedEN/01.2019/i09
WSA EXPLORER ORIGINAL INSTRUCTIONS
WSA Explorer – High quality liquid
chiller made in Italy
Dear Customer,
Thank you for purchasing a STULZ chiller.
It is the result of many years of research and design studies, as well as a fine matching of materials
and technologies to obtain a high quality chiller.
The CE mark guarantees that the STULZ products fulfil the requirements of the European Machinery
Directive for safety.
The level of quality is permanently checked at every phase, from design to production and makes
STULZ products synonymous of SAFETY, QUALITY and RELIABILITY.
For any questions or requests concerning products by STULZ SpA, please contact our Aftersales at
telephone [phone]
fax [phone]
email [email protected]
Or visit our website for more information about our products and services:
www.stulz.it

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WSA EXPLORER ORIGINAL INSTRUCTIONS
Table of Contents
1. Introduction.................................................................................................. 8
1.1 Introduction.............................................................................................................................. 8
1.2 Warranty.................................................................................................................................... 8
1.3 Safety......................................................................................................................................... 9
1.3.1 Symbols used in the manual ....................................................................................................................9
1.3.2 Labels..............................................................................................................................................................9
1.3.3 Safety Instructions ...................................................................................................................................11
1.3.4 Handling refrigerants.............................................................................................................................. 11
1.3.5 Safety and environmental requirement............................................................................................. 12
2. Residual risk ............................................................................................... 13
2.1 Transport and installation ................................................................................................. 13
2.2 Start-up .................................................................................................................................. 13
2.3 Operation............................................................................................................................... 13
2.4 Maintenance ......................................................................................................................... 14
2.5 Dismantling ........................................................................................................................... 14
2.6 Safety Data............................................................................................................................ 14
3. Transport/ Storage.................................................................................... 16
3.1 Delivery of units ................................................................................................................... 16
3.2 Storage................................................................................................................................... 17
3.3 Transport................................................................................................................................ 17
3.3.1 Transport protection ...............................................................................................................................17
3.3.2 Centre of gravity........................................................................................................................................21
4. Description................................................................................................. 23
4.1 Type Code.............................................................................................................................. 23
4.2 Intended use......................................................................................................................... 24
4.3 Chiller Design ....................................................................................................................... 24
4.3.1 General......................................................................................................................................................... 24
4.3.2 Versions .......................................................................................................................................................24
4.3.3 Refrigerant Circuit....................................................................................................................................24
4.3.4 Compressor................................................................................................................................................25
4.3.5 Evaporator ..................................................................................................................................................25
4.3.6 Condenser ..................................................................................................................................................25
4.3.7 Electrical Cabinet ..................................................................................................................................... 26
4.3.8 Sensors........................................................................................................................................................26
4.3.9 SEC.blue...................................................................................................................................................... 26
4.4 Piping diagrams................................................................................................................... 27
4.4.1 Legend.........................................................................................................................................................27
4.5 Hydraulic diagrams............................................................................................................. 32
4.5.1 Legend.........................................................................................................................................................32
5. Technical Data ........................................................................................... 36
5.1 Application limits ................................................................................................................ 36
5.1.1 Storage conditions .................................................................................................................................. 36
5.1.2 Operating conditions...............................................................................................................................36
5.2 Chilled water quality ........................................................................................................... 38

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WSA EXPLORER ORIGINAL INSTRUCTIONS
5.2.1 Glycol correction factors........................................................................................................................ 38
5.3 Pressure Drops.................................................................................................................... 39
5.4 Head pressure available ................................................................................................... 40
5.5 Technical Data...................................................................................................................... 42
5.6 Dimensional drawings ....................................................................................................... 53
5.7 Electrical connection data ............................................................................................... 57
6. Installation.................................................................................................. 58
6.1 Positioning............................................................................................................................. 58
6.1.1 Minimum distance from obstacles or other chillers ...................................................................... 59
6.2 Weight on the supports..................................................................................................... 60
6.3 Refrigerant circuit ............................................................................................................... 63
6.4 External water circuit ......................................................................................................... 63
6.5 Water connection................................................................................................................ 65
6.6 Filling and bleeding air....................................................................................................... 66
6.7 Electrical connection ......................................................................................................... 67
6.8 Opening the electric cabinet ........................................................................................... 67
6.9 Position of the electrical connections.......................................................................... 68
6.9.1 Backup battery for E.E.V. .......................................................................................................................69
6.10 Pump control ..................................................................................................................... 69
6.10.1 System with external pump................................................................................................................69
7. Commissioning .......................................................................................... 70
7.1 Preparation............................................................................................................................ 70
7.2 First Startup.......................................................................................................................... 70
7.2.1 Oil pre-heating .......................................................................................................................................... 71
7.2.2 Commissioning of the chilled water circuit.......................................................................................71
7.2.3 Commissioning of the refrigerant circuit ..........................................................................................72
8. Maintenance............................................................................................... 74
8.1 Safety instructions.............................................................................................................. 74
8.1.1 Warning notes............................................................................................................................................74
8.2 Maintenance intervals ....................................................................................................... 75
8.3 Refrigerant Circuit .............................................................................................................. 75
8.3.1 Refrigerant charge...................................................................................................................................75
8.3.2 Quantity........................................................................................................................................................76
8.3.3 Tightness of refrigerant circuit............................................................................................................. 76
8.3.4 Purity............................................................................................................................................................. 76
8.3.5 Exchange of filter drier............................................................................................................................77
8.3.6 HP switch ....................................................................................................................................................77
8.3.7 LP switch.....................................................................................................................................................77
8.3.8 Safety valve.................................................................................................................................................77
8.3.9 Expansion valve......................................................................................................................................... 78
8.3.10 Compressor............................................................................................................................................. 78
8.4 Air circuit................................................................................................................................. 80

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WSA EXPLORER ORIGINAL INSTRUCTIONS
8.4.1 Condenser ..................................................................................................................................................80
8.4.2 Condenser Fan..........................................................................................................................................80
8.4.3 Filter.............................................................................................................................................................. 80
8.5 Evaporator circuit................................................................................................................ 80
8.5.1 Tightness..................................................................................................................................................... 81
8.5.2 Evaporator ..................................................................................................................................................81
8.5.3 Differential pressure switch.................................................................................................................. 81
8.5.4 Flow switch.................................................................................................................................................81
8.6 Electric circuit....................................................................................................................... 81
8.6.1 Powerboard................................................................................................................................................82
8.7 Unit in general ...................................................................................................................... 82
9. Malfunction ................................................................................................ 83
10. Dismantling and disposal.......................................................................... 85
11. Options ....................................................................................................... 86
11.1 Quick Start (with UPS).................................................................................................... 86
11.2 Automatic Transfer Switch (Double power line) ..................................................... 87
11.2.1 Turn on the unit....................................................................................................................................... 87
11.2.2 Turn off the unit.......................................................................................................................................88
11.2.3 Maintenance mode.............................................................................................88
11.3 AxiTop diffusor................................................................................................................... 90
11.3.1 Safety.........................................................................................................................................................90
11.3.2 Material .....................................................................................................................................................90
11.3.3 Installation................................................................................................................................................91
11.3.4 Maintenance............................................................................................................................................92
11.4 Refrigerant R513A.......................................................................................................... 93
11.5 Power factor correction capacitor.............................................................................. 94
11.6 Energy meter ...........................................................................................................................

7© STULZ S.p.A. – all rights reservedEN/01.2019/i09
WSA EXPLORER ORIGINAL INSTRUCTIONS
Subjet to change without notice

8EN/01.2019/i09 © STULZ S.p.A. – all rights reserved
WSA EXPLORER ORIGINAL INSTRUCTIONS
1. Introduction
1.1 Introduction
These operating instructions contain basic information which is to be complied with for installation,
operation and maintenance. They must therefore be read and complied with by the fitter and the
responsible trained staff/operators before assembly and commissioning. All procedures detailed
in the manual, including tasks for installation, commissioning and maintenance must only be per-
formed by suitable trained and qualified personnel. They must be permanently available at the place
where the system is used.
The manufacturer will not be liable for any injury or damage caused by incorrect installation, com-
missioning, operation or maintenance resulting from a failure to follow the procedures and instruc-
tions detailed in the manual.
1.2 Warranty
The warranty is limited to free replacement and shipping of any faulty part, or sub-assembly which
has failed due to poor quality or manufacturing errors. All claims must be supported by evidence that
the failure has occurred within the warranty period, and that the chiller has been operated within the
designed parameters specified.
All warranty claims must specify the model and serial number of the chiller. This information is print-
ed on the name plate, fitted on the door from the electrical cabinet.
The warranty will be invalid in case of any modification on the chiller which is not written approved
from STULZ.
To claim any warranty purpose the following conditions need to be satisfied:
The initial startup of the chiller has to be carried out by trained personnel authorized from STULZ.
Only STULZ approved spare parts and liquids are allowed to be used.
All scheduled maintenance operations described in this manual must be performed accordingly by
trained and qualified personnel.
Not fulfilling at least one these conditions will automatically void the warranty.

9© STULZ S.p.A. – all rights reservedEN/01.2019/i09
WSA EXPLORER ORIGINAL INSTRUCTIONS
1.3 Safety
1.3.1 Symbols used in the manual
DANGER Risk of death or injury to the operator
WARNING Risk of damage to the unit
INFORMATION Important information, use note
ESD CAUTION Risk of damage to electronic components
1.3.2 Labels
Label recalling the instruction manual.
Location: on the side of the powerboard.
Entrance of the hydraulic circuit of
the chiller (inlet of the chiller).
Location: next to the inlet fitting of
the hydraulic circuit.
Exit of the hydraulic circuit of the
chiller (outlet of the chiller).
Location: next to the outlet fitting of
the hydraulic circuit.
Evaporator drain.
Location: next to the taps to empty
the evaporators.
Hot surface.
Location: in the proximity of the input / output pipes of condensers (under the pro-
tective casing) and on the compressors. With equipped antifreeze option, even in
the proximity of the heaters around the evaporator and the steel hydraulic piping.
Lifting point.
Location: near the lifting points on the base frame of the unit.

400/3/50 V
45 bar
85 °C
239/150,5 A
195 kW (W15L35)
45 °C
C1=16,5 - C2=16,5 kg
R410A
1900 kg
Tensione nominale - Rated voltage -
Nennspannung - Tension nominale
PS HP (Max pressione ammissibile HP - Max allowable pressure
HP - Max zulässiger Druck HP - Pression maximum admise HP)
TS MAX (Refrigerante - Refrigerant - Kaltemittel - Refrigerant)
Avviamento/marcia - Starting/run current -
Anlaufstrom/Nennstrom - Démarrage/marche
Resa nom. - Cooling cap. - Kalteleistung -
Puissance nominale
Potenza Assorbita - Input power - Leistungsaufnahme -
Puissance absorbée
TSS (Max temp. Di stoccaggio - Max Storage temp. - Max
Lagertemperatur - Temp. Max d'emmagasinage)
Carica gas - Filling capacity - Fullmenge - Charge de gaz
Refrigerante tipo - Refrigerant type - Kaltemittel - Refrigerant type
Peso - Weight - Gewicht - Poids
89,6 kW (W25L45)
Contiene gas fluorurati ad effetto serra disciplinati dal protocollo di Kyoto - Device
containing HFC fluids causing greenhouse effect regulated by Kyoto protocol - Das Gerät
erhält wie vom Kyoto-Protokoll geregelte Fluorkohlenwasserstoffe Treibhausgasen -
Dispositif contenant fluides HFC à effet de serre disciplinés par le protocole de Kyoto
REFRIGERATORE DI LIQUIDO - LIQUID COOLER -
KUHLANLAGE - REFROIDISSEUR DE LIQUIDE
SERIE - SERIES - SERIE - SERIE
DATA - DATE - DATUM - DATE
WPAR044207ZFT0 7035
N°0000408788
07/11/12
MODELLO - MODEL - TYP - MODELE
MADE IN ITALY
ORDINE - ORDER - ORDER - COMMANDER 2120002673
- 1 0 °C
TS MIN (Refrigerante - Refrigerant - Kaltemittel - Refrigerant)
26 bar
PS LP (Max pressione ammissibile LP - Max allowable pressure
LP - Max zulässiger Druck LP - Pression maximum admise LP)
II
CAT PED
Modulo valutazione - Evaluation Module - Bewertungsverfahren -
Procédure d'évaluation A1
0496
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WSA EXPLORER ORIGINAL INSTRUCTIONS
Discharge of the safety valves of the chiller.
Location: in the proximity of the refrigerant discharges of the safety valves.
Symbol Description
CE Units built in accord to the EC directives
0496 Reference number of the Technical File notified to
Approval Authority
EAC Units comply with EurAsian Conformity directives
Double Power
Supply
Double power supply (only if this option is present)
Rated Voltage Voltage - Phases - Frequency of the power supply
F.L.A. Maximum Absorbed current ofthe Main Power Supply
considering the toughest condition at the operating limit
of the unit
Auxiliary Power
Supply
Voltage - Phases - Frequency of the auxiliary power
supply
F.L.A. (Auxiliary
Power Supply)
Maximum Absorbed current of the Auxiliary power supply
considering the toughest condition at the operating limit
of the unit
Cooling Cap. Rated Cooling Capacitywith watertemperature 12 - 30°C
Refrigerant Type Refrigerant type used
Kg Refrigerant gas charge
Min/Max temp.
Storage
Maximum and minimum storage temperature (unit not
powered)
PS HP/PS LP Maximum working pressure permitted on the high pres-
sure side and minimum working pressure permitted on
the low pressure side.
TS Max. / TS Min. Maximum and minimum temperature reached by the
operating components of the refrigerant circuit
CAT PED Category complying with the Pressure Equipment
Directives
Evaluation
module
Conformity evaluation module according to the Pressure
Equipment Directives
Weight Unladen mass of the unit (without packing, but with the
refrigerant charge
CO2 Eq. Tons of Equivalent CO2 according to the FGas directives
(517/2014)
According to
Kyoto Protocol
According to Kyoto Protocol
Empty Space Empty for additional refrigerant charge added on the
installation site
Connecting hole for external earthing.
Location: on the base frame, close to properly designed holes.
The chiller is identified by the nameplate shown on the left.
The identification nameplate also shows the serial number of
the unit, it is important to know the label as it is essential to get
assistance or any information concerning the unit described in
this manual.
Location: on the side of the powerboard.

11© STULZ S.p.A. – all rights reservedEN/01.2019/i09
WSA EXPLORER ORIGINAL INSTRUCTIONS
1.3.3 Safety Instructions
INFORMATION
This cooling unit contains fluorinated greenhouse gas covered by the Kyoto protocol
In these STULZ chillers the refrigerant R134a is used, or R513A as an option. Refrigerants are vol-
atile or highly volatile fluorinated hydrocarbons which are liquefied under pressure. They are incom-
bustible and not hazardous to health when used as intended.
DANGER
• Works have to be carried out by competent staff only
• Observance of the regulations for accident prevention
• Stay out of danger when lifting and setting off the unit
• Secure the unit to avoid the risk of overturning
• Safety devices may not be bypassed
• Respect the corresponding EN- and IEC standards for the electrical connection of the unit
and observe the conditions of the power supply companies
• Switch off the voltage from the unit when working on it
• The unit must be earthed
WARNING
• The unit may only be used to cool water according to the Stulz specification.
• Observe the national regulations of the country where the unit will be installed
• The refrigerant circuit contains refrigerant and refrigerating plant oil, observe professional
disposal for maintenance and when setting the unit out of service
• Cooling water additives have an acidic effect on skin and eyes, wear safety glasses and safety
gloves
• Observe personal protective equipment when working on the refrigerant circuit
INFORMATION
• Respect material compatibility in the whole hydraulic circuit
• The male triangular wrench is to be placed in a visible location in the immediate vicinity of the
unit
1.3.4 Handling refrigerants
According to EN 378, refrigerants are divided in groups in respect of health and safety.
• Adherence to the regulations by law and guide-lines
• Execution only by competent staff
• Responsibility for correct disposal of refrigerant and system parts is incumbent on the operator
• Refrigerants have a narcotic effect when inhaled in high concentrations.
• The room is to be evacuated immediately if high concentrations of refrigerant suddenly occur. The
room may only be entered again after adequate ventilation.
• If unavoidable work is required in the presence of a high concentration of refrigerant, breathing
apparatus must be worn. This does not mean simple filter masks. Comply with breathing protec-
tion data sheet.
• Safety glasses and safety gloves are to be worn.

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WSA EXPLORER ORIGINAL INSTRUCTIONS
• Do not eat, drink or smoke at work.
• Liquid refrigerant must not get onto the skin (risk of burns).
• Only use in well ventilated areas.
• Do not inhale refrigerant vapours.
• Warn against intentional misuse.
• It is absolutely essential to comply with the first aid measures if accidents occur.
• Refrigerants containing FCs contribute to the global warming and with this to climate changes.
The FCs must therefore be disposed of in accordance with the regulations, i.e. only by companies
specially qualified and licensed as recognised disposal companies for refrigerants.
1.3.5 Safety and environmental requirement
The following requirements relate to the operation of refrigerating plants within the European
Community.
• The used components must correspond to the pressure equipment guide-line 2014/68/EC and
EN 378 part 14.
• Independent of the design, the equipment and inspection before the delivery, also the operator of
such plants has duties according to EN 378 and national regulations.
• This concerns the installation, the operation and the repeated inspection:
• Installation: according to EN 378
• Operation: Determination of emergency measures (accidents, malfunctions)
Creation of an abbreviated instruction and notification (template page)
1. A unit protocol must be kept.
2. To be stored in the proximity of the unit
3. Access for competent staff in case of repairs and repeated inspection must be ensured.
• Repeated inspection: according to EN 378
The operator is responsible for the execution.
The operator must ensure that all maintenance, inspection and assembly work is carried out by
authorised and qualified specialist staff who have made an in-depth study of the operating instruc-
tions. It is absolutely essential to comply with the procedure for shutting down the system described
in the operating instructions. Before maintenance work, the unit must be switched off at the main
switch and a warning sign displayed to prevent unintentional switching-on.
First aid measures
• If health problems occur during or after handling fluorinated hydrocarbons, a doctor is to be con-
sulted immediately.
• The doctor is to be informed that the work involved the use of fluorinated hydrocarbons.
• In the case of acute effects, the casualty is to be brought into the fresh air as quickly as possible.
• Splashes of fluorinated hydrocarbons in the eyes can be blown out or fanned out by an assistant.
Then rinse with water.
Independent conversion and manufacture of replacement parts
The system may only be converted or modified after consultation with STULZ. Original replacement
parts and replacement parts/accessories authorised by STULZ are an aid to safety.
Unacceptable operating methods
The operating safety of the system is only guaranteed when it is used as intended. The limit values
stipulated in the technical data must not be exceeded under any circumstances.

13© STULZ S.p.A. – all rights reservedEN/01.2019/i09
WSA EXPLORER ORIGINAL INSTRUCTIONS
2. Residual risk
2.1 Transport and installation
Area Danger Risk Preventative measures
Under the unit Faulty lifting system of the unit
causing its fall.
Bruises, trauma. Keep awayfrom the danger area while handling the unit
Beside the unit Support of the unit unstable or
inadequate causing its tipping.
Bruises, trauma. Make sure the unit support is adequate to its weight, is stable
and level. Wear protective equipments (helmet, gloves, safety
shoes)
In the lower
part of the unit
Sharp edes, buit-in parts Cuts, contusions, burns,
formation of acid vapours
Keep awayfrom the danger area while handling the unit. Wear
protective equipments (helmet, gloves, safety shoes)
Electrical box Connection cable under volt-
age, sharp edge of openings
for the cable introduction
Electric shock, cable
damage at positioning
Check and make sure the unit is de-energized. Stand on isolat-
ed ground. Take care that sharp edges are always protected by
rubber grommets. Wear protective equipments (helmet, gloves,
safety shoes)
2.2 Start-up
Area Danger Risk Preventative measures
In the lower part of the
unit, refrigerant piping
Defective filling line for refrig-
erant, leaks in the refrigerant
piping, closed stop valves,
defective safety valve
Discharge of refrigerant under high pressure,
burns in case of contact to the skin, forma-
tion of acid vapours with open flames
Open stop valves.
Wear safety glasses and gloves
In the lower part of the
unit, water piping
Leaks in the water lines, closed
stop valves
Discharge ofwater under high pressure, con-
tact with the skin of ethylene glycol, irritation
of eyes and respiratory system by glycol
vapours, increased risk of electric shock in
combination with electricity, risk of slipping
Open stop valves.
Wear rubber gloves, ethylene glycol
is adsorbed by the skin Avoid swal-
lowing water with glycol additives
Electrical box Short circuit Electric arc, acid vapours Re-tighten terminal connections,
Wear protective gloves
2.3 Operation
Area Danger Risk Preventative measures
In the lower part of the
unit, refrigerant piping
Leaks in the refrigerant piping,
defective safety valve/high
pressure switch, fire
Discharge of refrigerant under high
pressure, explosion of pipe sections, for-
mation of acid vapours with open flames
In case of fire wear protective mask
Hot gas line The line can take a temperature
up to 70°C
Burn in case of contact to the skin Wear safety gloves. Cover lower arms
with clothing
Electrical supply Falsely dimensioned cables or
protection devices
Short-circuit, fire, acid vapours Correctly design supply cables and pro-
tection elements. Wear protective mask
Top of the unit Fans without AxiTop diffusor. Shearing, cuts. If AxiTop diffusor option is not installed,
install protective devices of the fans.

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WSA EXPLORER ORIGINAL INSTRUCTIONS
2.4 Maintenance
Area Danger Risk Preventative measures
At the lower part ofthe unit,
refrigerant piping
Leaks in the refrigerant
piping, defective safety
valve/high pressure
switch
Discharge of refrigerant under
high pressure, burns in case of
contact to skins, formation of
acid vapours with open flame
Wear safety glasses and gloves
Pressure lines, compressor Heat Burns in case of contact to
the skin
Wear safety gloves. Avoid contact to hot unit parts
Fin heat exchanger, air side Sharp edges, fins Injuries by cutting Wear safety gloves
Electrical box Live components, sup-
posed to be voltage-free
Electric shock 1. Disconnect mains
2. Prevent reconnection
3. Test for absence of harmful voltages
4. Cover or close off nearby live components
To energize applythese procedures in reverse
order. Wait for the time indicated at paragraph 8.1
after the off position of the main switch, before
start doing any operation in the electric cabinet.
2.5 Dismantling
Area Danger Risk Preventative measures
Refrigerant
piping
Soldering off or cutting the refrig-
erant pipes still under pressure
Discharge of refrigerant under high pressure,
burns in case of contact to the skin
Depressurized pipes before disconnect-
ing them. Wear safety glasses and gloves
Water piping Unscrewing the water pipes still
under pressure
Discharge ofwater under high pressure,
contact with the skin of ethylene glycol,
increased risk of electric shock in combina-
tion with electricity, risk of slipping
Drain of cooling water by drain valve.
Wear rubber gloves
Electrical box Live electrical supply cable Electric shock Check de-energized state of the supply
before dismantling, wear safety gloves
2.6 Safety Data
Safety data of the refrigerant R134a
1. Identification of the substance / preparation Identification of preparation STAR COLD 134a
Recommended uses Refrigerant
2. Composition/Information on ingredients Tetrafluoroethane (CH2FCF3)CAS No. 811972
CE No.: 2123770
Concentration: 100%
Safety data of the refrigerant R513A
1. Identification of the substance / preparation Identification of preparation Opteon™ XP10 (R513A)
Recommended uses Refrigerant
2. Composition/Information on ingredients Tetrafluoroethane (CH2FCF3)CAS No. 811972
CE No.: 2123770
Concentration: 44%
2,3,3,3Tetrafluoroprop-1-ene (C3H2F4)CAS No. 754121
CE No.: 4687107
Concentration: 56%

15© STULZ S.p.A. – all rights reservedEN/01.2019/i09
WSA EXPLORER ORIGINAL INSTRUCTIONS
WARNING
Please, refer to the specific “Safety Data Sheet” of refrigerant gas
Safety data of the oil
1. Identification of
the substance /
preparation
Identification of preparation BITZER BSE170 lubricant oil
Product Description Polyol Ester
Product Code 11867339 Ester
Intended use Synthetic refrigeration compressor oil
Company Name CPI Corporation Pty Ltd 148 Old Pittwater Road, Brookvale NSW 2100, Australia
2. Hazards
identification
Hazard Classification: Non hazardous substance. Non-dangerous good. No special warning labels are
required. Does not contain any hazardous ingredients at or above regulated thresholds
The product contains no known carcinogens. Classified in accordance with Approved
Criteria for Classifying
Hazardous Substances NOHSC: 1008 and according to Australian Dangerous Goods Code.
Note: This material should not be used for any other purpose than the intended use in Sec-
tion 1 without expert advice. Health studies have shown that chemical exposure may
cause potential human health risks which may vary from person to person.
WARNING
Please, refer to the specific “Safety Data Sheet” of lubricant oil

DATA: 07/11/2012
MATRICOLA: 0000408788
MODELLO: WPAR044207ZFT0 7035
ALIMENTAZIONE: 400 /3/50 Ord.Prod. 2120002673

WPAR044207ZFT0 7035
0000408788
2120002673


MODELLO/MODEL: WPAR044207ZFT0 7035 S.N.: 0000408788
ALIMENTAZIONE/POWER SUPPLY: 400 /3/50
LOTTO/LOT: 2120002673 DATA/DATE: 07/11/2012
NOTE/NOTES:
ITEM

maximum storage
temperature
45 °C
TSS:

16 EN/01.2019/i09 © STULZ S.p.A. – all rights reserved
WSA EXPLORER ORIGINAL INSTRUCTIONS
3. Transport/ Storage
3.1 Delivery of units
To assure a persistent quality and reliability, all chillers are tested and inspected before leaving the
factory. The chillers are completely assembled when shipped and contain refrigerant under pres-
sure. It is also possible to ship the chillers without refrigerant gas. In this case the refrigerant is sub-
stituted be nitrogen.
The chiller units must always be transported upright.
INFORMATION
The refrigerant circuit is filled with R134a refrigerant (or R513A as option) ready to use
The chiller is labelled as
follows:
• STULZ Logo
• STULZ order number
• Type of unit
• Packing piece – content
• Warning symbols
INFORMATION
• Due to the pre-filled refrigerant, the unit is marked as transport of dangerous goods
• The refrigerant is non-toxic and non-flammable
• For special shipping indication, please contact the corresponding sales department
• Special transport regulations must be checked country specifically
INFORMATION
When delivery is accepted, the unit is to be checked against consignment papers for complete-
ness and checked for external damage which is to be recorded on the consignment papers in
the presence of the freight forwarder.
• You receive the consignment papers with the delivery of the chiller
• The shipment is made ex works, in case of shipment damages, please assert your claim
directly towards the carrier.

17© STULZ S.p.A. – all rights reservedEN/01.2019/i09
WSA EXPLORER ORIGINAL INSTRUCTIONS
3.2 Storage
If you put the unit into intermediate storage before the installation, the following measures have to
be carried out to protect the unit from damage and corrosion:
• Make sure that the water connections are provided with protective hoods. If the intermediate stor-
age exceeds 2 months, we recommend filling the pipes with nitrogen.
• The temperature at the storage point should not be higher than 45°C and not lower than –5°C,
and the site should not be exposed to direct sunlight.
• The storage point must be indoor.
• The unit should be packaged before the storage to avoid the risk of damage and corrosion.
• The unit should be stored in a location with minimum activity to reduce the risk of accidental phys-
ical damage.
• A periodic inspection is highly recommended. If your chiller contains refrigerant gas during the
storage period you also have to consider the current FGas regulations and EN 378.
3.3 Transport
The STULZ chillers can be lifted and moved by lifting devices with ropes or belts. There are lifting
plates attached to the base frame for this purpose. The lifting plates are standard wise supplied and
installed on the chiller. In case of shipping in container, the plates can be removed to save movement
space. Check the specific manual to re-install the plates.
The drawings on the following pages show the dimensions for the lifting points and the position of
the centre of gravity.
INFORMATION
The rope forces are higher than the weight forces according to the geometry. Due to the risk of
scratching the side planking we advise not to use chains.
WARNING
All the chillers are designed to be lifted and moved with empty hydraulic circuit
3.3.1 Transport protection
The standard packaging of the chiller is bubble wrap around the chiller.
WARNING
The standard packaging is not suitable for transport by sea or by air

18 EN/01.2019/i09 © STULZ S.p.A. – all rights reserved
WSA EXPLORER ORIGINAL INSTRUCTIONS
WSA 160
Spacer
Rope
Shakles
Lifting plate

19© STULZ S.p.A. – all rights reservedEN/01.2019/i09
WSA EXPLORER ORIGINAL INSTRUCTIONS
LIFTING
45.0°
3892.9
624 1011
2473
2237
2278
3000
4635
WSA 220
LIFTING
45.0° 45.0°
2440 844 2440 811
2473
2237
2278
424
3217
6959
WSA 250, WSA 280, WSA 300
WSA 320, WSA 360
LIFTING
821
434
8119
2466
2237
2278
3000 864 3000
45.0° 45.0°
3893
100

20 EN/01.2019/i09 © STULZ S.p.A. – all rights reserved
WSA EXPLORER ORIGINAL INSTRUCTIONS
3045
2473
1324 2300 1244 2300 1711 2237
2278
LIFTING
45.0°
45.0°
8998
LIFTING
45.0° 45.0°
3888
2473
1282 3016 3000 3016 1669
11983
2237
2278
100
WSA 480, WSA 640WSA 380, WSA 440