Stulz SplitAir3 SAL40 User manual

Index 39B
Issue 06.2018
SplitAir3
Operating instructions
Air Conditioners
230/1/50 - 400/3+N/50

2EN/39B/06.2018 © STULZ SpA – all rights reserved
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STULZ SpA
Via Evangelista Torricelli n.3
37067 Valeggio sul Mincio VR
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 condition-
ing technology business, specialising in A/C for data cen-
tres and telecommunications installations. STULZ has sev-
en production plants (Germany, Italy, the USA, 2 in China,
Brazil and Indiaand) and seventeen subsidiaries (in France,
Italy, Great Britain, Belgium, Brazil, the Netherlands, New
Zealand, Mexico, Austria, Poland, Spain, Singapore, China,
India, South Africa, Australia and the USA). The company
also co-operates with sales and service partners in over
130 other countries, and therefore boasts an international
network of air-conditioning specialists.

3© STULZ SpA . – all rights reserved EN/39B/06.2018
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SplitAir3
Dear customer,
thank you for having chosen SplitAir3 from STULZ.
It's the result of decades of research and design studies, with a fine search of materials and
technologies to obtain an high quality unit.
The CE mark guarantees that the STULZ products satisfy the requirements of the European
Machinery Directive for safety.
The level of quality is constantly checked at every stage, from design to production, making the
STULZ products synonymous of SAFETY, QUALITY and RELIABILITY.
For general inquiries concerning products by STULZ SpA, please contact our Aftersales at:
telephone [phone]
fax [phone]
e-mail [email protected]
For further information concerning our products and services visit our website :
www.stulz.it

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5© STULZ SpA . – all rights reserved EN/39B/06.2018
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Table of contents
1.Introduction...........................................................................................................7
1.1.Symbols used in this manual .................................................................................................................... 7
1.2.Attachments................................................................................................................................................... 7
2.Safety directions ...................................................................................................8
2.1.Introduction .................................................................................................................................................... 8
2.2.General rules.................................................................................................................................................. 8
2.3.Residual hazard............................................................................................................................................. 9
2.4.Safety data ...................................................................................................................................................10
2.5.Labels.............................................................................................................................................................11
2.6.Intended and non-intended use............................................................................................................15
3.Handling and storage ..........................................................................................15
3.1.Unit receipt ...................................................................................................................................................15
3.1.1.Precautions when handling the unit............................................................................................17
3.2.Storage ..........................................................................................................................................................18
4.Description .........................................................................................................19
4.1.Coding ............................................................................................................................................................19
4.2.Component lay-out and operating methods.....................................................................................22
4.3.Refrigerant circuit ......................................................................................................................................26
4.4.Cooling components .................................................................................................................................26
4.5.Safety components of refrigerant circuit...........................................................................................27
4.6.Protection components of refrigerant circuit...................................................................................27
4.7.Mechanical components..........................................................................................................................28
4.8.Motors ............................................................................................................................................................29
4.9.Electrical components of protection and control............................................................................29
5.Technical data .....................................................................................................32
5.1.Application limits.........................................................................................................................................32
5.2.Technical data .............................................................................................................................................32
5.3.Drawings........................................................................................................................................................35
6.Installation...........................................................................................................40
6.1.Positioning the unit ....................................................................................................................................40
6.2.Refrigerant connections ..........................................................................................................................44
6.3.Hydraulic connections..............................................................................................................................50
6.4.Electrical Connections..............................................................................................................................50
7.Start-up ...............................................................................................................55
7.1.Commissioning............................................................................................................................................55
7.2.Checks after commissioning .................................................................................................................55
7.3.Switching off ................................................................................................................................................55
8.Maintenance ........................................................................................................56
8.1.Safety instructions .....................................................................................................................................56
8.2.Preventive maintenance schedule .......................................................................................................56
8.2.1.Air circuit...............................................................................................................................................57
8.2.2.Refrigerant circuit .............................................................................................................................58
8.2.3.General cleaning................................................................................................................................59
8.3.Extraordinary maintenance.....................................................................................................................59
9.Troubleshooting ..................................................................................................60
10.Uninstalling and disposal of the unit .................................................................62
11.Options..............................................................................................................63
11.1.Protective treatment on heat exchangers – TREATS................................................................63
11.2.Electrical reheat – RSC.........................................................................................................................63
11.3.Kit for low external temperatures - Winter kit...............................................................................63
11.4.Main switches - SWTS/SWMS...........................................................................................................64
11.5.Crankcase heater for compressor – CRA ......................................................................................65
11.6.Refrigerant R134a .................................................................................................................................65
11.7.Soft start for three-phase compressor – SOFTT ........................................................................68
11.8.Soft start for single-phase compressor – SOFTM......................................................................70

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STULZ reserves the right to update the product and the relevant manual without having to update
products and manuals sold previously except under exceptional circumstances.
Contact your local STULZ partner when requesting or receiving any updates of instruction
manuals or corrections when which are considered to be integral parts of the manual.
11.9.Voltage Monitoring – VCC ...................................................................................................................72
11.10.Monitoring of phase sequence and phase loss (for 3-phase scroll compressors) –
PSCR......................................................................................................................................................................72
11.11.WIB1000 / WIB1485........................................................................................................................72
11.12.Stainless steel casing - PAKIN ........................................................................................................72
11.13.Seaworthy case packaging - SEAPACK......................................................................................72

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1. Introduction
The object of this manual is air conditioners units used in Telecommunication area: it contains
the basic instructions which must be respected during installation, use and maintenance of the
unit. Therefore these operating instructions must be read carefully by the assigned specialized
personnel/operators before proceeding with installation and start-up.
Keep this manual available at the site where the system is used for the whole life period of the unit,
inside the shelter or together with any other literature concerning the equipment which utilizes the
product, provided it in a dry and clean place.
This manual reflects the state of the art existing at the time the product is marketed and shall not be
considered unsuitable merely because it has not been updated following developments in design
and manufacturing methods.
These operating instructions are intended for the following authorized personnel:
• USER: he must know and apply the safety directions and the instructions contained in the present
manual, for correct use of the unit.
• INSTALLER: he must verify the compliance of movement and installation of the unit with safety
regulations and instructions contained in the present manual.
• MAINTENANCE TECHNICIAN: he's a technician authorized by the manufacturer for the start-up
of the unit, technical assistance, ordinary and extraordinary maintenance, reparations.
The qualified personnel consists of professional figures authorized by the safety responsible to
do the activities listed above, due to their training, education, experiences, as well as their specific
knowledge of safety work rules and injury prevention.
INFORMATION
The manufacturer is not responsiblefor anymisuse ofair conditioner, as well asfor non-authorized
modifications and for the inobservance of instructions on this manual. The occurring of any of the
conditions above immediately invalidates guarantee coverage for the product.
This manual must be kept by the customer and made available to the installation, commissioning,
use and maintenance personnel.
1.1. Symbols used in this manual
DANGER RISK OF INJURY FOR OPERATOR AND
POSSIBILITY OF DAMAGING THE UNIT
ATTENTION INFORMATION OR WARNING OF CAUTION
IN CARRYING OUT A PROCEDURE
INFORMATION IMPORTANT INFORMATION
1.2. Attachments
The following documents are attached to this manual, as its integral part:
• Use and maintenance manual part 2, which contains the electrical drawing and the conformity
declaration CE of the unit.
• User manual of the electronic controller.

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2. Safety directions
2.1. Introduction
This air conditioning unit has been designed and built for a professional use according to applicable
regulations. Please check the complete list of applicable regulations in the attached CE conformity
declaration.
2.2. General rules
The air conditioners are electric equipment with refrigerant circuit than contains refrigerant and
refrigerating plant oil that can create dangers to persons or things near them.
DANGER
• Works have to be carried out by competent staff only.
• Observance of regulations for accident prevention.
• Stay out of danger when lifting and setting off the unit.
• Secure the unit to avoid the risk of overturning.
• Do not climb on the air conditioner.
• Do not remove protection panels. Safety devices may not be bypassed.
• Respect the corresponding EN and IEC standards for the electric connection of the unit and
observe the conditions of power supply companies.
• Switch off the voltage from the unit when working on it.
ATTENTION
• 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; read and follow instructions
in chapter "10. Uninstalling and disposal of the unit".
• For transport, installation, either ordinary or extraordinary maintenance, operators and
maintenance people must wear individual protection devices (i.e. gloves, glasses, helmet,
shoes), according to the indications of safety manager and applicable regulations.
• The unit may only be used to cool according to the STULZ specification.
• Before any maintenance operation, read and follow instructions in the corresponding chapter.
INFORMATION
• Any special opening tools have to be placed in a visible location nearby the unit.

9© STULZ SpA . – all rights reserved EN/39B/06.2018
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2.3. Residual hazard
During transport and installation
Area Danger Risk Preventive measures
Under
the unit
Defective lifting system of the unit
that causes its fall.
Contusions,
traumas
Keep away from dangerous area during handling of the unit.
Near the
unit
Accidental collision with damages
to the refrigerant circuit and
leakage of refrigerant.
Burns, forming
of acid vapours
Keep away from dangerous area during handling of the unit. Wear
PPE.
Near the
unit
Unstable or unsuitable support of
the unit which causes its overturn.
Contusions,
traumas
Be sure that the unit has adequate support in relation with its
weight, it's stable and levelled. Wear PPE.
Electrical
box
Supply cables under voltage. Electrocution Check that the power supply of the electrical box has been
insulated. Remain electrically insulated from the ground. Wear PPE.
During start-up and operation
Area Danger Risk Preventive measures
Near the unit Launch of tools and various hardware (screws, nuts,
washers, etc.) that can accidentally fall on the fans
blades.
Contusions, traumas In the installation phase, be sure to
remove tools and other installation
materials. Wear PPE.
Near the unit Aspiration and following expulsion from the fans
of objects, dusts and substances present on the
installation site.
Contusions, traumas,
inhalation of dusts
Clean installation area. Wear PPE.
In contact with
the unit
Electrical connection against regulations and missing
ground connection.
Electrocution Remain electrically insulated from
the ground. Wear PPE.
Near the
refrigerant pipes
Condensation on refrigerant pipes if not insulated Electrocution,
slipping
Insulate the pipes. Wear PPE.
Near the
unit and the
refrigerant pipes
Shut-off valves closed after maintenance; fire; high
pressure switch defectives with consequent explosive
break of refrigerant circuit.
Burns, forming of
acid vapours in
presence of flames
Open shut-off valves of the
refrigerant circuit. Wear PPE.
Near the unit
(electrical box,
supply cables)
Short circuit; wrong dimensioning of the cables or of
the general breaker.
Electrocution, fire,
forming of acid
vapours
Check the fixing of cables in the
terminals: select adequately supply
cables and main switch. Wear PPE.
During maintenance
Area Danger Risk Preventive measures
Near the unit and the
refrigerant pipes
Leakages in the refrigerant circuit; high
pressure switch defective; fire. Consequent
explosive break of refrigerant circuit.
Burns, forming of
acid vapours in
presence of flames
Open shut-off valves of the
refrigerant circuit. Wear PPE.
Hot components of the unit
accessible from outside
(condenser, refrigerant lines)
Contact with hot surfaces. Burns Avoid contact. Wear PPE.
Sharp components of the
unit accessible from outside
(condensers, edges of the unit)
Contact with cutting surface. Cuts, abrasions,
bruises
Wear PPE
Electrical box Powered line even if the switch of the
machine is on OFF.
Electrocution Check the insulation of the
power supply from the electrical
panel. Be sure that the main
switch will not re-activated
during maintenance.
Operation of the fans during
maintenance
Contact with moving surfaces. Cuts, abrasions,
bruises
Be sure to remove power during
maintenance and wait the stop
of the moving parts. Wear PPE.
Internal hot components
(compressor, condenser,
refrigerant lines)
Contact with hot surfaces. Burns Wear PPE

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During uninstalling
Area Danger Risk Preventive measures
Near the
unit
Leakages in the refrigerant circuit; the system
of refrigerant recovery is defective. Consequent
explosive rupture of the refrigerant circuit.
Burns, forming of
acid vapours in
presence of flames
Wear PPE
Near the
unit
Leakages of oil during recovery. Contact of the oil
with skin or eyes
Wear PPE
Near the
refrigerant
fittings
Disconnecting the pipes still under pressure Burns, forming of
acid vapours in
presence of flames
Recovery of gas before disconnecting the
pipes. Wear PPE.
Electrical
box
Powered line even if the switch of the machine
is on OFF.
Electrocution Check the insulation of the power supply from
the electrical panel. Be sure that the main
switch will not re-activated during maintenance.
2.4. Safety data
Safety data of the refrigerant
1. Product
identification
Preparation identification Forane R407C
Recommended use Refrigerant
2. Composition/
Information on
Ingredients
Difluoromethane (HFC32) CAS No. 75105. Weight: 23%
Pentafluoroethane (HFC125) CAS No. 354336. Weight: 25%
Tetrafluoroethane (HFC134a) CAS No. 811972. Weight: 52%
3. Hazard
identification
Most important hazards Ambient consequences: not easily biodegradable. Chemical and physical hazards:
thermal decomposition into toxic and corrosive products.
Additional information Not dangerous according to 1999/45/CE.
4. First aid
measures
Inhalation Immediately remove to fresh air. If breathing has stopped, give artificial respiration. Get
medical attention if symptoms persists.
Contact with skin Promptly flush with water for at least 15 minutes. If there is evidence of frostbite, bathe
with lukewarm water. Get medical attention if symptoms persists.
Contact with eyes Immediately flush eyes with large amount of water for at least 15 minutes lifting eyelids
occasionally to facilitate irrigation. Get medical attention.
Ingestion Hospitalization
Protections for aiders If there are high concentrations of refrigerant, the breathing apparatus must be worn.
Notes for the doctor Do not administer catecholamines (because of the cardiac effect caused by the product).
5. Fire fighting
measures
Specific hazard At high temperature - Thermal decomposition giving toxic and corrosive products:
hydrogen fluoride, carbon oxides, one of the components of this preparation gives
flammable mixtures with air.
Specific methods Prohibit all sources of sparks and ignition - Don't smoke. Cool containers / tanks with
water spray. Ensure a system for the rapid emptying of containers. In case of fire nearby,
remove exposed containers.
Special protective equipment
for fire-fighters
Wear self-contained breathing apparatus and protective suit.
6. Accidental
release
measures
Personal precautions Avoid contact with skin and eyes and inhalation of vapours. Use personal protective
equipment. In enclosed areas: ventilate or wear a self-contained breathing apparatus
(risk of anoxia). Remove all sources of ignition. Do not smoke.
Environmental precautions Discharge into the environment must be avoided.
7. Handling and
storage
Handling Technical measures
/ Precautions
Storage and handling precautions applicable to products: gases under pressure, provide
appropriate exhaust ventilation at machinery.
Save handling advice Prohibit ignition sources near the point where containers are opened. Do not smoke.
Storage
Technical measures / Storage
conditions
Store at room temperature in the original container. Keep away from open flames,
hot surfaces and sources of ignition. Keep in a cool, well-ventilated place. Protect full
containers from sources of heat to avoid over pressurization.
Packaging materials
Recommended Ordinary steel
To be avoided Alloys containing more that 2% of magnesium. Plastic materials.

11© STULZ SpA . – all rights reserved EN/39B/06.2018
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8. Exposure
control /
personal
protection
General protective measures Provide sufficient air exchange and/or exhaust in work rooms.
Exposure limits Pentafluoroethane/Difluoromethane/Tetrafluoroethane:
WME = 1000 ppm (ARKEMA) / TWA = 1000 ppm (WEEL - 2006)
Personal protective
equipment
Respiratory protection: in case of insufficient ventilation, wear suitable respiratory
equipment. Hand protection: leather gloves. Eye protection: safety glasses with side-
shields. Skin and body protection: protective clothing (cotton).
Hygiene measures Do not smoke. Avoid contact with the skin and the eyes. Avoid inhalation of vapours.
9. Stability and
reactivity
Conditions to avoid Keep away from heat and sources of ignition. Avoid contact with flames and red hot
metallic surfaces.
Hazardous decomposition
products.
At high temperature - Thermal decomposition giving toxic and corrosive products:
gaseous hydrogen fluoride (HF), carbon oxides.
Further information The product is stable under normal handling and storage conditions.
10. Toxicological
information
Acute toxicity
Inhalation
Experimental effects on animals: practically not harmful by inhalation. No mortality/4h/
rat: 500000 ppm. As with other volatile aliphatic halogenated compounds, through
vapour accumulation and/or inhalation of large quantities, the product can cause: loss
of consciousness and cardiac disorders aggravated by stress and lack of oxygen, risk of
mortality.
Local effects Contact with skin Ejection of liquefied gas: frostbite possible.
Repeated dose toxicity By inhalation: 3 months/rat. Studies of prolonged inhalation in animals have not shut sub
chronic toxic effects. NOAEL (No Observed Adverse Effect Level): 50000 mg/kg.
Special effects: Genotoxicity According to available experimental data. Not genotoxicity.
Carcinogenicity NORFURLANE: inhalation, rat, experimentation on animals has not shown clear
evidence of carcinogenic effect.
Toxicity to reproduction
Fertility
NORFURLANE: according to limited available data in animals - absence of toxic effects
on fertility, inhalation/mouse.
Foetal development According to available experimental data. Absence of toxic effects for foetal
development. Rabbit, rat/by inhalation.
11. Ecological
information
According to its composition not easily biodegradable; not bioaccumulable. ODP: 0
(R11 = 1) / GWP < 0,6 (R11 = 1)
12. Disposal
considerations
Disposal of product Recycle or incinerate at an approved waste disposal site. In accordance with local and
nationals regulations.
13. Transport
information
UN number 3340
Proper shipping name REFRIGERANT GAS R407C
Class 2 (ADR, ADNR, RID); 2.2 (IATA, IMDG)
Classification code 2A (ADR, ADNR, RID)
Hazard identification No 20 (ADR, ADNR, RID)
Label 2.2
EmS Number (IMDG) FC, SV
Marine Pollutant (IMDG) No
14. Regulatory
information
EC classification / labelling
Dangerous preparation D. 1999/45/EC amended by D.2001/60/CE
Further information The product does not need to be labelled in accordance with EC directives or respective
national laws.
2.5. Labels
DANGER: MOVING COMPONENTS
DANGER: HOT COMPONENTS
DANGER: HIGH VOLTAGE

SERIE - SERIES - SERIE - SERIE
ORDINE - ORDER - BESTELLUNG - COMMANDE
DATA - DATE - DATUM - DATE
TS MIN (Refrigerante - Refrigerant - Kaltemittel - Refrigerant)
TS MAX (Refrigerante - Refrigerant - Kaltemittel - Refrigerant)
Modulo di valutazione - Evaluation Module -
Bewertungsverfahren - Procédure d'évaluation
Contiene gas fluorati 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
Ermeticamente sigillato - hermetically sealed
Hermetische Verschluss - Scellè Hermetiquement
MADE IN ITALY
A
01/08/2016
2,45 kg
50 °C
85 °C
-10 °C
29,5 bar
20 bar
Tensione nominale - Rated voltage - Nennspannung - Tension
nominale
Avviamento/marcia - Starting/run current -
Anlaufstrom/Nennstrom - Demarrage/marche 76/13,4 A
MODELLO - MODEL - TYP - MODELE
N°
OP:
Potenza Assorbita - Input power - Leistungsaufnahme -
Puissance absorbee
2,81 kW (L27L35RH40%)
Carica gas - Filling capacity - Fuellmenge - Charge de gaz
Refrigerante tipo - Refrigerant type - Kaeltemittel - Refrigerant type
TSS (Max temp. Di stoccaggio - Max Storage temp. -
Max Lagertemperatur - Temp. Max d'emmagasinage)
91 kg
Peso - Weight - Gewicht - Poids
R407C
PS HP (Max pressione ammissibile HP - Max allowable pressure HP -
Max zulaessiger Druck HP - Pression max admise HP)
PS LP (Max pressione ammissibile LP - Max allowable pressure LP -
Max zulaessiger Druck LP - Pression max admise LP)
CAT PED I
SAO800RS00CZ00 7035
Grado di Protezione IP - Degree of protection IP - Schutzart IP -
Degré de protection IP
IP X4
CONDIZIONATORE D'ARIA - AIR CONDITIONER
KUHLAGGREGAT - CONDITIONNEUR
Kw
Potenza assorbita in riscaldamento - Heating power consuption -
Verbrauch in heizung - puissance absorbée en chauffage
230V 1 50Hz ~
SERIE - SERIES - SERIE - SERIE
ORDINE - ORDER - BESTELLUNG - COMMANDE
DATA - DATE - DATUM - DATE
TS MIN (Refrigerante - Refrigerant - Kaltemittel - Refrigerant)
TS MAX (Refrigerante - Refrigerant - Kaltemittel - Refrigerant)
Modulo di valutazione - Evaluation Module -
Bewertungsverfahren - Procédure d'évaluation
Contiene gas fluorati 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
Ermeticamente sigillato - hermetically sealed
Hermetische Verschluss - Scellè Hermetiquement
MADE IN ITALY
A
01/08/2016
kg
60 °C
85 °C
-10 °C
- bar
- bar
Tensione nominale - Rated voltage - Nennspannung - Tension
nominale
Avviamento/marcia - Starting/run current -
Anlaufstrom/Nennstrom - Demarrage/marche 10,2/3,8 A
MODELLO - MODEL - TYP - MODELE
N°
OP:
Potenza Assorbita - Input power - Leistungsaufnahme -
Puissance absorbee
1,5 kW ()
Carica gas - Filling capacity - Fuellmenge - Charge de gaz
Refrigerante tipo - Refrigerant type - Kaeltemittel - Refrigerant type
TSS (Max temp. Di stoccaggio - Max Storage temp. -
Max Lagertemperatur - Temp. Max d'emmagasinage)
54 kg
Peso - Weight - Gewicht - Poids
PS HP (Max pressione ammissibile HP - Max allowable pressure HP -
Max zulaessiger Druck HP - Pression max admise HP)
PS LP (Max pressione ammissibile LP - Max allowable pressure LP -
Max zulaessiger Druck LP - Pression max admise LP)
CAT PED I
SSI80HRS200Z00 7035
Grado di Protezione IP - Degree of protection IP - Schutzart IP -
Degré de protection IP
IP X0
CONDIZIONATORE D'ARIA - AIR CONDITIONER
KUHLAGGREGAT - CONDITIONNEUR
1,5 Kw
Potenza assorbita in riscaldamento - Heating power consuption -
Verbrauch in heizung - puissance absorbée en chauffage
230V 1 50/60Hz ~
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Technical name-plate
The unit can be correctly identified by the technical name-plate containing all information for its
correct use.
Each part of the split unit (internal part, external part and optional free cooling module) is identified
by its own name-plate, with a different serial number. The name-plate is located in two copies: on
the external casing of the unit (internal part, external part and optional free cooling module) and on
the cover of the electric box (internal and external unit).
An example follows (data are purely by way of example):

13© STULZ SpA . – all rights reserved EN/39B/06.2018
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ATTENTION
For any assistance or information concerning the unit described in this manual, knowledge of its
serial number is essential.
IP protection degree
INFORMATION
IP protection degree is the protection, from the outdoor environment, of the unit when installed
in its normal use.
The IP protection degree (according to EN 60529, considering the prescriptions of EN 60335) of
each part of STULZ SplitAir3 is:
• IPX4 of the external unit (SAO), the external unit is protected from harmful effects of splashing of
water against the enclosure from any direction.
• IPX0 of the internal unit (SSI), the internal unit is not protected against water (see picture below).
ATTENTION
When the internal unit is installed combined with the freecooling module and including an
external rainproof grille, the protection degree is IPX4, as described below.
• IPX4 of the freecooling module (SFC), when the module is installed with a suitable rainproof grille.
• IPX4 of the whole combination of: internal unit, freecooling module and rainproof grille. This
system is protected from harmful effects of splashing of water against the enclosure from any
direction (see picture below).
Internal unit
Outdoor
Shelter
Indoor
Internal unit

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Labels on the packaging of external and internal unit, on both sides
CE marked Fragile
Keep dry Position
Do not step Lift cart here
Maximum 2 units one above the other
Outdoor
Shelter wall
Internal unit + freecooling module
Indoor
Rainproof grille
External view of internal unit, freecooling module and rainproof grille

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2.6. Intended and non-intended use
Intended use
STULZ SplitAir3 air conditioners are designed to cool rooms / shelters containing technological
systems. Their use eliminates problems caused by high temperatures, dirt and humidity present in
the area where they are installed. The units of SplitAir3 family are divided in two parts: the motor-
condensing unit must be installed outside the room to be conditioned and it's designed to operate
with compressor always in upright position. The evaporating unit must be installed inside the room
to be conditioned, suitably protected from weather, and it can be positioned horizontally (fixed to the
ceiling) or vertically (fixed to the wall).
The internal side of the room/ shelter must not be accessible to the general public (see EN 60335-
240, paragraph 3.119).
The SplitAir3 conditioners cannot be used outside safety limits specified on the name-plate.
STULZ is not responsible for an malfunctions caused by failure to comply with these instructions.
The operator bears the entire risk.
DANGER
The conditioners may not be used or transported in a position other than that for which they
have been designed. STULZ declines all liability deriving from failure to observe the above.
Non-intended use
The air conditioner cannot be installed in the following areas:
• With strong heat radiation;
• With strong magnetic fields;
• With free flames;
• With fire risk;
• With inflammable products;
• With explosive atmosphere;
• With saline atmosphere;
• With aggressive atmosphere.
For any doubt, please consult the manufacturer.
3. Handling and storage
3.1. Unit receipt
STULZ products are delivered ex-works. All units have been individually inspected in all their
components and been carefully packaged before the delivery.
Immediately inspect the unit upon receipt of the goods.
• Make sure that it has been transported in the correct position. Note any unsuitable shipping
conditions on the shipping document.
• Check that no components are missing, that are presents on shipping document and the integrity
of the conditioner at the moment of the receiving.
• Check that there aren’t any external damages. In case of damages, note them on the shipping
document in the presence of deliverer.
• Hidden damage, that are verified after removal the packing, must always be notified to the shipper
by registered letter within 8 days of receipt of the goods.

16 EN/39B/06.2018 © STULZ SpA – all rights reserved
SAL
Except differently agreed, standard packing of internal and external unit is composed of:
• Pallet under the unit, fixed to its lower frame;
• Protective box above the unit.
The standard packing of the free cooling module is a protective box which contains the unit.
Following information can be found on the packing:
• STULZ logo;
• Unit code;
• Accessories put in the packing;
• Warning symbols.
INFORMATION
With ex-works delivery conditions, carrier is the sole responsible for any damage caused during
transport. STULZ is not responsible for damages to the goods caused by the carrier, but it will
do everything in its power to assist clients on those situations.
If delivery conditions are not ex-works, in case of damage, please follow instructions either on
transport document or on www.stulz.it web site.
This product cannot be returned without prior approval of STULZ. For any assistance, please
consult your local STULZ partner.
External unit

17© STULZ SpA . – all rights reserved EN/39B/06.2018
SAL
3.1.1. Precautions when handling the unit
Handle these units, when they are packaged, using a fork lift. When they are not packaged, use a
hoisting machine equipped with cables or chains suited for supporting their weight.
Internal unit
Free cooling module

18 EN/39B/06.2018 © STULZ SpA – all rights reserved
SAL
ATTENTION
Risk of personal injuries during materials handling
Material handling and unpacking must be done only by trained personnel with suitable individual
protection devices (i.e. gloves, glasses, helmet, shoes)
LIFTING AND TRANSPORT
DANGER
Capacity of lifting device must be appropriate for the weight of air conditioner.
Load must be balanced to avoid tilting.
Avoid offhanded or rough manoeuvres.
Don’t lay other objects upon the air conditioner.
ATTENTION
Risk of unit deformation
Don’t move the unit on rolls, or with forklift after removing the pallet, to avoid any structural
deformation.
3.2. Storage
INFORMATION
Standard packing doesn't protect air conditioner from rain and bad weather
Standard packing is not suitable for seafreight
Standard packing is not suitable for airfreight
If the unit is stored before the installation, comply with the following instructions:
• Don't expose to direct solar radiations;
• Store the unit with its original packaging.
Please see the ambiental condition for storage in paragraph "5.1. Application limits".
Removal of packing
• Remove packing without damaging air conditioner: remove the box and the pallet under the unit;
• Recover any document or component inside the packing;
• Keep original packing (pallet and protections) for future shipments.
ATTENTION
Use original packing to ship the air conditioner to any other destination
If packing disposal is necessary, we remind to dispose different materials suitably (see chapter
"10. Uninstalling and disposal of the unit")

SAL 40 0 R S 42 B 000
19© STULZ SpA . – all rights reserved EN/39B/06.2018
SAL
4. Description
4.1. Coding
INFORMATION
The next tables summarise the available options for the Spit-Air family. Some of the options of
combinations are not available on all the products in the family.
Type code - KIT
Product type
Nominal cooling capacity
Version
Control type
Application
Power supply
Type refrigerant and gas
Heaters element
Optionals
0 = none
2 = 1500 W
3 = 3000 W
Z = special model
B = R134a (only for SAL)
C = R407C (only for SAL)
00 = 230V/1ph/50Hz
01 = 230V/1/60
0A = 230V/3/60
42 = 400V/3ph+n/50Hz
S = None
L = Low temperature (winter kit)
T = TREATS (Epoxy treatment)
A = Low temperature + TREATS
R = Internal controller C2020
U = C2020 + WIB1000
W = C2020 + WIB1485
0 = Cooling
F = Cooling + Freecooling
H = Cooling + Freecooling + Emergency ventilation 48 Vdc direct connected
According to the technical data sheet
SAL = SplitAir3

SAO 40 0 R S 42 C 000
SFC 80
20 EN/39B/06.2018 © STULZ SpA – all rights reserved
SAL
Type code - External unit
Product type
Nominal cooling capacity
Version
Control type
Application
Power supply
Type refrigerant and gas
Heaters elements
Optionals
0 = none
B = R134a
C = R407C
00 = 230V/1ph/50Hz
01 = 230V/1/60
0A = 230V/3/60
42 = 400V/3ph+n/50Hz
S = None
L = Low temperature (winter kit)
T = TREATS (Epoxy treatment)
A = Low temperature + TREATS
R = Internal controller C2020
0 = none
According to the technical data sheet
SAO = External split ONOFF
Type code - Free cooling module
Free cooling module
Size
80 = 4 - 8 kW
A5 = 10 - 14,6 kW