Stulz CyberAir 3 PRO DX ASR Series User manual

STULZ the natural choice
Instructions
Index G17D
Issue 11.2015
CyberAir 3 PRO DX
ASR/ALR series
Precision Air Conditioning Units
380-415/3/50
Original instructions

2/11.2015/G17DEN
Contents
1. Safety ...........................................................................................................................3
1.1 Marking ..............................................................................................................................................3
1.2 Safety instructions .............................................................................................................................3
1.3 Handling refrigerants .........................................................................................................................3
1.4 Safety and environmental requirements ............................................................................................4
2. Residual risks .............................................................................................................5
3. Transport / Storage .....................................................................................................7
3.1 Delivery of units .................................................................................................................................7
3.2 Transport ............................................................................................................................................7
3.3 Storage ..............................................................................................................................................7
4. Description ..................................................................................................................8
4.1 Type code ..........................................................................................................................................8
4.2 Intended use ......................................................................................................................................9
4.3 Design ...............................................................................................................................................9
4.4 Function .............................................................................................................................................9
5. Technical data ...........................................................................................................10
5.1 Application limits ..............................................................................................................................10
5.2 Technical Data - ASR ... A - 1-circuit................................................................................................12
5.3 Technical Data - ASR ... A - 2-circuits ..............................................................................................12
5.4 Technical Data - ALR ... GE - 1-circuit .............................................................................................13
5.5 Technical Data - ALR ... GE - 2-circuits ...........................................................................................13
5.6 Technical Data - ASR ... AS - 1-circuit .............................................................................................14
5.7 Technical Data - ASR ... AS - 2-circuits ...........................................................................................14
5.8 Technical Data - ALR ... GES - 1 circuit ...........................................................................................15
5.9 Technical Data - ALR ... GES - 2 circuits .........................................................................................15
5.10 Dimensional drawings ...................................................................................................................16
6. Installation .................................................................................................................17
6.1 Positioning .......................................................................................................................................17
6.2 Connection of the piping ..................................................................................................................20
6.2.1 Refrigerant piping (A/AS units) .................................................................................................20
6.2.2 Water piping (GE/GES units) ....................................................................................................26
6.2.3 Condensate drain connection ...................................................................................................28
6.3 Electrical connection ......................................................................................................................32
7. Commissioning .........................................................................................................40
8. Maintenance ..............................................................................................................49
8.1 Safety instructions ...........................................................................................................................49
8.2 Maintenance intervals .....................................................................................................................49
8.3 Refrigerant circuit ............................................................................................................................50
8.4 Air circuit ..........................................................................................................................................51
8.5 Water circuit .....................................................................................................................................52
8.6 Unit in general .................................................................................................................................52
8.7 Competences ..................................................................................................................................52
9. Malfunction ...............................................................................................................53
10. Dismantling and disposal ......................................................................................54
11. Contents of the CE Declaration of Conformity ....................................................55
12. Options
Subject to technical modifications.

/11.2015/DX 3 EN
1.2 Safety instructions
General
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. They must be permanently available at the place where the system is used.
This cooling unit contains fluorinated greenhouse gas covered by the Kyoto protocol.
In STULZ units the refrigerant R410A is used as standard. Refrigerants are volatile, or highly volatile fluorinated
hydrocarbons which are liquefied under pressure. They are incombustible and not hazardous to health when used
as intended.
- 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 VDE-, 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.
- Observe the national regulations of the country where the unit will be installed
- The refrigerant circuit contains refrigerant and refrigerating plant oil, observe professional dis-
posal 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.
- The unit may only be used to cool air according to the Stulz specification.
- 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 Handling refrigerants
According to EN 378, refrigerants are divided in groups in respect of health and safety: R134a belongs to Group L1.
- Adherence to the regulations by law and guide-lines
- Execution only by competent staff
1. Safety
1.1 Marking
Danger - threatening danger, grievous bodily harm and death
Attention - dangerous situation, light bodily injury and material damage
Information - important information and application notice
ESD note - risk of damaging electronical components

4/11.2015/DXEN
- Responsability 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 protection data sheet.
- Safety glasses and safety gloves are to be worn.
- 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.
1.4 Safety and environmental requirements
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 EC/97/23 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)
a. A unit protocol must be kept.
b. To be stored in the proximity of the unit
c. 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 instructions.
It is absolutely essential to comply with the procedure for shutting down the system described in the operating in-
structions. 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 consulted 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 re-
placement 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.

/11.2015/DX 5 EN
Transport, Installation
Area Cause Danger Safety note
Under the unit Defective lifting device Bruising Keep away from under the unit
Beside the unit Uneven or insufficient
foundation or raised floor
stand
Bruising by tipping
over of the unit
Make sure, the foundation is even
and stable and that the raised floor
stand is correctly mounted. Wear
protective equipment (helmet,
gloves, safety shoes).
In the lower part of
the unit
Heat by soldering flame,
sharp edges, built-in parts
Burns, cuts, concus-
sion damage
Wear safety glasses and gloves,
don't put your head into the unit.
Electrical box Connection cable under
voltage, sharp edges of
the openings for the cable
introduction
Electric shock, cable
damage at positioning
Check and make sure the unit is de-
energized. Stand on isolated ground.
Take care that sharp edges are al-
ways protected by rubber grommets
Start-up
Area Cause Danger Safety note
In the lower part of
the unit, refrigerant
piping
Defective filling line for
refrigerant, 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, formation of acid
vapours with open flames
Open stop valves.
Wear safety glasses and
gloves, don't put your head
into the unit.
In the lower part
of the unit, water
piping
Leaks in the water lines,
closed stop valves
Discharge of water under
high pressure, contact with
the skin of ethylen glycol, irri-
tation 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, ethylen
glycol is absorbed by the
skin. Avoid swallowing water
with glycol additives.
Electrical box Short circuit Electric arc, acid vapours Retighten terminal connec-
tions,
Wear protective gloves
2. Residual risks

6/11.2015/DXEN
Operation
Area Cause Danger Safety note
In the lower part of
the unit, refrigerant
piping
Leaks in the refrigerant
piping, defective safe-
ty valve/high pressure
switch, fire
Discharge of refrigerant under
high pressure, explosion of
pipe sections, formation of acid
vapours with open flames
In case of fire wear pro-
tective mask.
Unit bottom, even-
tually raised floor
Accumulation of conden-
sate and water discharge
by too small or clogged
drain pipe
Corrosion and development of
mould by moistness.
Humidity in combination with
electric connections.
De-energize water dis-
charge area.
Electrical alimen-
tation
Falsely dimensioned cab-
les or protection devices
Short-circuit, fire, acid vapours Correctly design alimen-
tation cables and pro-
tection elements. Wear
protective mask.
Maintenance
Area Cause Danger Safety note
In the lower part of
the unit, refrigerant
piping
Leaks in the refrigerant
piping, defective safe-
ty valve/high pressure
switch.
Discharge of refrigerant
under high pressure,
burns in case of contact to
the skin, formation of acid
vapours with open flames
Wear safety glasses and
gloves, don't put your head
into the unit.
Pressure lines,
compressor, reheat
behind heat ex-
changer
Heat Burns in case of contact to
the skin
Wear safety gloves. Avoid
contact to hot unit parts.
Heat exchanger Sharp edges, fins Injuries by cutting Wear safety gloves.
Steam humidifier Discharge of steam Burns Avoid area around the steam
lance.
Electrical box Live components, sup-
posed to be voltage-free.
Electric shock Secure master switch against
being switched on again.
Dismantling
Area Cause Danger Safety note
In the lower part of
the unit, refrigerant
piping
Soldering off or cutting
the refrigerant pipes still
under pressure.
Discharge of refrigerant
under high pressure,
burns in case of contact to
the skin.
Depressurize pipes before
disconnecting them.
Wear safety glasses and
gloves, don't put your head
into the unit.
In the lower part
of the unit, water
piping
Unscrewing the water
pipes still under pressure.
Discharge of water under
high pressure, contact with
the skin of ethylen glycol, in-
creased risk of electric shock
in combination with electrici-
ty, risk of slipping
Drain of cooling water by
drain valve.
Wear rubber gloves.
Electrical box Live electrical alimentati-
on cable
Electric shock Check de-energized state
of the alimentation before
dismantling,
Wear safety gloves.

/11.2015/DX 7 EN
Unit version A, AS: The refrigerant circuit is filled with nitrogene up to atmospheric pressure.
Unit version GE, GES: The refrigerant circuit is filled with refrigerant ready for use.
3. Transport / Storage
3.1 Delivery of units
Stulz A/C units are mounted on pallets and packed several times in plastic film. They must always be transported
upright on the pallets.
When delivery is accepted, the unit is to be checked against the delivery note for completeness
and checked for external damage which is to be recorded on the consignment note in the presence
of the freight forwarder.
• The delivery note can be found on the A/C unit when delivered.
• The shipment is made ex works, in case of shipment damages, please assert your claim towards
the carrier.
• Hidden damage is to be reported in writing within 6 days of delivery.
The following information can be found on the packing.
1) Stulz logo
2) Stulz order number
3) Type of unit
4) Packing piece - contents
5) Warning symbols
also upon request
6) Gross weight
7) Net weight
8) Dimensions
9) Customer order number
10) Additional customer requirements
Construction of protective covering
(from inside to outside)
1. Neopolene cushioning
2. Shrink film
3. Additional board in container shipments
3.2 Transport
The Stulz A/C units can be moved by lifting devices with ropes, for this the ropes have to be fixed at the pallet, and
the upper unit edges have to be protected by wooden laths or metal brackets in such a way that they could not be
caved in.
You can move the unit still packaged on the pallet with a fork lift, if you take care that the centre of gravity is within
the fork surface. Take care that the unit is in an upright position at the transport.
3.3 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 storage exceeds 2
months, we recommend filling the pipes with nitrogen.
• the temperature at the storage point should not be higher than 42°C, and the site should not be exposed to direct
sunlight.
• the unit should be stored packaged to avoid the risk of corrosion especially of the heat exchanger fins.
Never move the unit on rollers and never transport it without pallet on a fork lift, for the risk of
distorting the frame.

8/11.2015/G17D
A S R 29 1 A
A, AS, GE, GES
1, 2
20 ... 130
A = CyberAir
S, L - Standard, Low energy
STULZ GmbH
Klimatechnik
Holsteiner Chaussee 283
22457 Hamburg
Tel: [phone]
Fax: [phone]
11.2015 / G17D
ASR 291 A
---
C
B99403 R410A
2015
40
EN
Explanation
Unit variants
Product range
Air direction/air outlet
Output of unit in kW
Number of refrigeration circuits
Cooling system:
A: air-cooled*
GE: glycol-cooled + free cooling
S: units with EC compressor
Page code
Index
number
Date of issue
month/year
Language:
EN - English
FR - French
ES - Spanish
PL - Polish
IT - Italian
PT - Portuguese
RU - Russian
DE - German
Energy index
4. Description
4.1 Type code
The type code represents the unit variant of your A/C unit and can be found on the rating plate.
Manufacturer address:
* one condenser per refrigerant circuit is required.
EN/
The rating plate is located in the door in
front of the electrical compartment.
Unit type
internal part no.
Order number
+ alternative
Serial no.
Manufacturing base:
G - Germany
C - China
I - Italy
R - in the Raised floor

/11.2015/G17D 9 EN
4.4 Function
The A/C unit is exclusively operated by the controller in the front panel and the main switch (operable from outside
the unit) in the electric box.
In the air inlet a temperature/humidity sensor is located which provides the measured values for the temperature/
humidity control. In general the cooling is achieved by compressor operation in the refrigerant circuit. In the unit
version GE a direct cooling by a chilled water coil is also possible.
The A/C unit control is effected by the on board I/O controller. The operational conception is designed such as to
allow to control up to 19 units from one unit. These units can be installed separately with a maximum control line
length of 1000 m.
Dehumidification
To achieve a dehumidification, the electronic expansion valve is partially closed in the first step. The reduction of the
refrigerant mass flow makes the evaporation temperature drop, which lets the surface temperature in a part of the
evaporator fall below the dew point of the air. This causes dehumidification.
For a bigger dehumidification, the fan speed is reduced. With a constant cooling capacity, the temperature of the air
which flows through the heat exchanger coil, passes below the dew point. The moisture contained in the air conden-
ses on the heat exchanger gathers in the condensate pan and is carried away by the drain.
4.2 Intended use
This A/C unit is used to control room temperature and air humidity. The A/C unit is designed for indoor installation.
Any use beyond this is not deemed to be use as intended. STULZ is not liable for any damage resulting from such
misuse. The operator alone bears the risk.
electrical box
sightglass,
circuit 2
Heat exchanger unit
Fan unit
4.3 Design
The fan unit contains the fans and optional electric heating elements which are located around the fans. The heat
exchanger unit contains the heat exchanger and all components of the refrigerant circuit.
In units with two refrigerant circuits and with a speed-controlled compressor only the first refrigerant circuit is equipped
with a speed-controlled compressor. The second circuit contains an on/off compressor.
sightglass,
circuit 1

10 /11.2015/G17DEN
5.1 Application limits
- Admissible return air conditions:
Temperature:
Lower limit: 20°C
Upper limit: 40°C
Humidity:
Lower limit: 5,5°C dew point
Upper limit: 60% r.h. and 16°C dew point
- Outdoor ambient conditions:
lower limit: -10°C, depending on selected option
down to –45°C
upper limit: depending on selected condenser
- Storage conditions:
Temperature [°C]: -20 - +42
Humidity [% rel. h.]: 5 - 95
Atmosphere pressure [kPa]: 70 - 110
- Required minimum thermal load:
Units with on/off compressor: 20% of nom. cooling cap.
with speed controlled compr.: 30% of nom. cooling cap.
- Max. length of piping between A/C unit and air-
cooled condenser: 30 m equivalent.
- Max. level difference between condenser and
A/C unit: 5 m (when condenser is below the A/C unit).
- Chilled water- /cooling water pipes:
max. water head pressure: 16 bar
- Chilled water conditions:
min. temperature at the unit inlet: 5°C
min temp. difference with 5°C EWT: 4 K
- Hot water conditions for optional heating coil:
max. inlet water temperature: 110°C
max. water head pressure: 16 bar
- Voltage: 380 - 415V / 3ph / 50Hz; N; PE
- Voltage tolerance: +/- 10%
(not for permanent operation)
- Frequency tolerance: +/- 1%
The following voltages are also available for this A/C unit
series with on/off compressors:
230V/3Ph/50Hz; PE (not supported by StulzSelect)
208V/3Ph/60Hz; PE
230V/3Ph/60Hz; PE
380V/3Ph/60Hz; N; PE
460V/3Ph/60Hz; PE (also for units with speed-
controlled compressor)
Other voltages on request.
Voltage/frequency tolerances as for 400V/3Ph/50Hz.
The cooling capacity, air flow, water flow, pressure loss,
sound pressure level and valve sizes change with a vol-
tage different from the standard voltage (400V/3Ph/50
Hz). In this case, see the technical data by the help of
the "Stulz Select" planning tool.
The unit design, the external dimensions, the weight,
the position and size of the supply connections are
independent of the supply voltage and can be found in
this manual.
Requirements for UPS systems:
(in case of permanent operation of the EC fans with a
UPS system)
- the output voltage of the UPS system must be grounded
neutral (wye).
- the voltage distortions must be within the limits stated
below and no inadmissibly high DC voltage portions
may exist.
- all-pole sinus filters must be provided at the UPS
system output.
transient peak over-voltage phase to ground:
max. 4 kV (1,2/50µs wave form; Z=12 Ohms in acc. to
ANSI)
transient peak over-voltage phase to phase:
max. 2 kV (1,2/50µs wave form; Z=2 Ohms in acc. to
ANSI)
ripple voltage phase to ground: dV/dt < 1V/µs (≡1000V/ms)
voltage harmonics: THD(V) < 8%
The warranty is invalidated for any possible damage or
malfunction that may occur during or in consequence of
operation outside the application ranges.
5. Technical data

/11.2015/G17D 11
R134a R410A
bar 0,5 3,0
bar 1,5 6,0
bar 24,5 36,0
bar 18,0 29,0
bar 28 40
EN
Adjustment of the pressure switches:
LP switch:
releases at:
automatic reset at:
HP switch:
releases at:
manual reset possible at:
Safety valve:
Design conditions for A/C units:
Electrical connection:
Return air conditions for evaporator capacity:
with an external static pressure:
400V/3ph/50Hz
33°C, 30% rel. h.
20 Pa
Cooling fluid circuit GE, GES
Cooling fluid water, 30% ethylen glycol
Fluid temperature inlet/outlet (summer operation) 34°C/40°C
Water temperature inlet (winter operation) 11°C
Condensation temperature 45°C
The sound pressure levels are valid at a height of 1m and distance of 2m in front of the unit under free field condi-
tions and with nominal data. The values take into account the effects of all installation and design parts contained
in the standard unit.

12 /11.2015/G17D
Modell 201 291 351 381 451 561 431 551
DX-Kälteleistung R410A total
33°C/30% r.F. sensibel kW 30,8 30,8
36,2
36,2
41,6
41,6
48,7
48,7
55,0
55,0
68,9
68,9
56,7
56,7
65,8
65,8
DX-Kälteleistung R134a total
33°C/30% r.F. sensibel kW 30,2
30,2
33,5
33,5
38,6
38,6
46,3
46,3 –64,2 64,2
46,3
46,3 –
Luftvolumenstrom m³/h 6200 7500 8800 10000 11500 12500 13000 15000
Rückluftfilterklasse M5 M5 M5 M5 M5 M5 M5 M5
Schalldruckpegel dBA 48,9 52,0 54,6 53,1 55,4 56,7 48,1 51,7
Gewicht - Wärmetauschereinheit kg 302 313 313 428 433 476 476 479
Gewicht - Ventilatoreinheit kg 95 123 162
Gesamtgewicht kg 397 408 408 551 556 599 634 641
Baugröße 1 2 3
Modell 532 602 682 722 802 892 822 1082 1252
DX-Kälteleistung R410A total
33°C/30% r.F. sensibel kW 64,4 64,4
75,5
75,5
99,6
99,6
87,2
87,2
94,2
94,2
104,9
104,9
98,4
98,4
128,3
128,3
150,4
150,4
DX-Kälteleistung R134a total
33°C/30% r.F. sensibel kW 62,2
62,2
66,7
66,7
89,4
89,4
77,5
77,5
91,5
91,5 –92,8 92,8 –133,1 133,1
Luftvolumenstrom m³/h 13500 16000 18000 19000 20000 22000 21000 27000 32000
Rückluftfilterklasse M5 M5 M5 M5 M5 M5 M5 M5 M5
Schalldruckpegel dBA 49,8 54,2 57,3 55,1 56,5 59,0 53,5 59,6 62,1
Gewicht - Wärmetauschereinheit kg 524 540 573 595 621 632 669 676 930
Gewicht - Ventilatoreinheit kg 162 230 310 397
Gesamtgewicht kg 686 702 735 825 851 863 979 986 1327
Baugröße 3 4 5 7
EN
5.2 Technical Data - ASR ... A - 1-circuit
Type
DX-cooling cap. R410A total
33°C/30% r.h. sensible kW
DX-cooling cap. R134a total
33°C/30% r.h. sensible kW
Airflow m³/h
Return air filter class
Sound pressure level dBA
Weight - heat exchanger unit kg
Weight - fan unit kg
Total weight kg
Cabinet size
5.3 Technical Data - ASR ... A2 - 2-circuits
2 Two condensers required.
The units contain a protective gas filling under atmospheric pressure.
For electrical data, (compressor and fan power consumption) see e-data sheet.
The electrical power consumption of the fans must be added to the room load.
Type
DX-cooling cap. R410A total
33°C/30% r.h. sensible kW
DX-cooling cap. R134a total
33°C/30% r.h. sensible kW
Airflow m³/h
Return air filter class
Sound pressure level dBA
Weight - heat exchanger unit kg
Weight - fan unit kg
Total weight kg
Cabinet size

/11.2015/G17D 13
Modell 201 291 331 381 431 551
DX-Kälteleistung R410A total
33°C/30% r.F. sensibel kW 22,1 22,1
37,5
37,5
39,6
39,6
48,5
48,5
52,2
52,2
66,2
66,2
DX-Kälteleistung R134a total
33°C/30% r.F. sensibel kW 19,1
19,1
33,3
33,3
33,4
33,4
46,4
46,4
46,2
46,2 –
CW-Kälteleistung total
33°C/30% r.F. sensibel kW 25,9
25,9
38,4
38,4
44,4
44,4
50,7
50,7
62,1
62,1
73,4
73,4
Auslegungsfüllmenge 1kg 4,7 4,9 6,4 6,4 7,3 7,3
Wasservolumenstrom m³/h 4,1 6,8 7,1 8,7 9,3 11,9
Druckverlust wasserseitig - Sommer kPa 43 74 58 85 59 94
Druckverlust wasserseitig - Winter kPa 35 63 48 75 52 82
GE-Registerinhalt dm³ 18,8 24,5 32,6
G-Ventilgröße (2-Wege) DN 32 32 40 40 40 40
GE-Ventilgröße (2-Wege) DN 32 32 40 40 40 40
Luftvolumenstrom m³/h 5000 7500 9000 10000 12500 14500
Rückluftfilterklasse M5 M5 M5 M5 M5 M5
Schalldruckpegel dBA 43,1 49,1 40,7 43,3 45,1 48,8
Gewicht - Wärmetauschereinheit kg 474 486 553 566 660 663
Gewicht - Ventilatoreinheit kg 123 162 230
Gesamtgewicht kg 597 609 715 728 890 893
Baugröße 2 3 4
Modell 422 532 572 722 822 1082 1252
DX-Kälteleistung R410A total
33°C/30% r.F. sensibel kW 44,2 44,2
64,3
64,3
68,2
68,2
89,9
89,9
99,3
99,3
123,3
123,3
140,2
140,2
DX-Kälteleistung R134a total
33°C/30% r.F. sensibel kW 46,8
46,8
62,5
62,5
62,4
62,4
77,9
77,9
92,3
92,3 – –
CW-Kälteleistung total
33°C/30% r.F. sensibel kW 51,8
51,8
70,3
70,3
78,0
78,0
96,6
96,6
107,4
107,4
122,2
122,2
135,6
135,6
Auslegungsfüllmenge 1kg 4,1 4,1 5,9 6,0 7,6 7,6 7,6
Wasservolumenstrom m³/h 8,2 11,6 12,2 16,1 17,8 22,4 25,5
Druckverlust wasserseitig - Sommer kPa 59 81 58 98 75 116 134
Druckverlust wasserseitig - Winter kPa 57 80 57 96 83 131 168
GE-Registerinhalt dm³ 32,6 37,6 47,3
G-Ventilgröße (2-Wege) DN 40 40 50 50 50 50 50
GE-Ventilgröße (2-Wege) DN 40 40 50 50 50 50 50
Luftvolumenstrom m³/h 10000 13700 15900 19300 21000 23000 25500
Rückluftfilterklasse M5 M5 M5 M5 M5 M5 M5
Schalldruckpegel dBA 39,6 47,4 48,5 53,0 56,7 58,0 59,6
Gewicht - Wärmetauschereinheit kg 693 697 779 794 970 984 1008
Gewicht - Ventilatoreinheit kg 230 310 397
Gesamtgewicht kg 923 927 1089 1104 1367 1381 1405
Baugröße 4 5 7
EN
5.4 Technical Data - ALR ... GE - 1-circuit
Type
DX-cooling cap. R410A total
33°C/30% r.h. sensible kW
DX-cooling cap. R134a total
33°C/30% r.h. sensible kW
CW-cooling capacity total
33°C/30% r.h. sensible kW
Nominal refrigerant charge 1kg
Water flow m³/h
Pressure loss water side - summer kPa
Pressure loss water side - winter kPa
GE coil content dm³
G-Valve size (2-way) DN
GE-Valve size (2-way) DN
Airflow m³/h
Return air filter class
Sound pressure level dBA
Weight - heat exchanger unit kg
Weight - fan unit kg
Total weight kg
Cabinet size
1
The indicated refrigerant charge refers to each refrigerant circuit for R410A and R134a.
For electrical data, (compressor and fan power consumption) see e-data sheet.
The electrical power consumption of the fans must be added to the room load.
5.5 Technical Data - ALR ... GE - 2-circuits
Type
DX-cooling cap. R410A total
33°C/30% r.h. sensible kW
DX-cooling cap. R134a total
33°C/30% r.h. sensible kW
CW-cooling capacity total
33°C/30% r.h. sensible kW
Nominal refrigerant charge 1kg
Water flow m³/h
Pressure loss water side - summer kPa
Pressure loss water side - winter kPa
GE coil content dm³
G-Valve size (2-way) DN
GE-Valve size (2-way) DN
Airflow m³/h
Return air filter class
Sound pressure level dBA
Weight - heat exchanger unit kg
Weight - fan unit kg
Total weight kg
Cabinet size

14 /11.2015/G17D
Modell 271 401 511
DX-Kälteleistung R410A total
33°C/30% r.F. sensibel kW 36,2 36,2
55,9
55,9
69,6
69,6
Luftvolumenstrom m³/h 7500 11500 17000
Rückluftfilterklasse M5 M5 M5
Schalldruckpegel dBA 52,0 55,4 58,5
Gewicht - Wärmetauschereinheit kg 310 440 481
Gewicht - Ventilatoreinheit kg 95 123 162
Gesamtgewicht kg 405 563 643
Baugröße 1 2 3
Modell 542 742 552 732 832 1092 1302
DX-Kälteleistung R410A total
33°C/30% r.F. sensibel kW 73,2 73,2
98,7
98,7
90,4
90,4
101,4
101,4
106,4
106,4
131,6
131,6
145,0
145,0
Luftvolumenstrom m³/h 17500 19000 19000 21500 23000 28000 32000
Rückluftfilterklasse M5 M5 M5 M5 M5 M5 M5
Schalldruckpegel dBA 59,3 60,3 58,4 60,0 58,0 61,7 62,1
Gewicht - Wärmetauschereinheit kg 526 555 588 601 671 679 870
Gewicht - Ventilatoreinheit kg 162 230 310 397
Gesamtgewicht kg 688 717 818 831 981 989 1267
Baugröße 3 4 5 7
EN
5.6 Technical Data - ASR ... AS - 1-circuit
Type
DX-cooling cap. R410A total
33°C/30% r.h. sensible kW
Airflow m³/h
Return air filter class
Sound pressure level dBA
Weight - heat exchanger unit kg
Weight - fan unit kg
Total weight kg
Cabinet size
5.7 Technical Data - ASR ... AS2 - 2-circuits
2 Two condensers required.
The units contain a protective gas filling under atmospheric pressure.
For electrical data, (compressor and fan power consumption) see e-data sheet.
The electrical power consumption of the fans must be added to the room load.
Type
DX-cooling cap. R410A total
33°C/30% r.h. sensible kW
Airflow m³/h
Return air filter class
Sound pressure level dBA
Weight - heat exchanger unit kg
Weight - fan unit kg
Total weight kg
Cabinet size

/11.2015/G17D 15
Modell 271 401 511
DX-Kälteleistung R410A total
33°C/30% r.F. sensibel kW 35,4 35,4
46,8
46,8
55,0
55,0
CW-Kälteleistung total
33°C/30% r.F. sensibel kW 38,1
38,1
50,7
50,7
65,9
65,9
Auslegungsfüllmenge R410A kg 4,8 6,4 7,3
Wasservolumenstrom m³/h 6,6 8,7 10,4
Druckverlust wasserseitig - Sommer kPa 70 85 72
Druckverlust wasserseitig - Winter kPa 60 75 64
GE-Registerinhalt dm³ 18,8 24,5 32,6
G-Ventilgröße (2-Wege) DN 32 40 40
GE-Ventilgröße (2-Wege) DN 32 40 40
Luftvolumenstrom m³/h 7500 10000 13000
Rückluftfilterklasse M5 M5 M5
Schalldruckpegel dBA 49,2 52,9 54,1
Gewicht - Wärmetauschereinheit kg 475 550 655
Gewicht - Ventilatoreinheit kg 123 162 230
Gesamtgewicht kg 598 712 885
Baugröße 2 3 4
Modell 432 542 552 732 832 1092 1302
DX-Kälteleistung R410A total
33°C/30% r.F. sensibel kW 50,1 50,1
64,5
64,5
68,1
68,1
85,3
85,3
96,3
96,3
115,5
115,5
136,2
136,2
CW-Kälteleistung total
33°C/30% r.F. sensibel kW 58,8
58,8
71,7
71,7
78,5
78,5
90,2
90,2
103,8
103,8
122,2
122,2
135,6
135,6
Auslegungsfüllmenge R410A 1kg 4,1/4,4 4,3/4,4 5,9/6,1 5,9/6,1 7,6/7,6 7,6/7,6
Wasservolumenstrom m³/h 10,3 11,8 12,3 15,8 17,6 22,4 25,5
Druckverlust wasserseitig - Sommer kPa 75 75 51 82 65 104 134
Druckverlust wasserseitig - Winter kPa 88 82 57 92 82 131 168
GE-Registerinhalt dm³ 32,6 37,6 47,3
Ventilgröße (2-Wege) G-Kreislauf DN 32 32 40 40 40 40 50
Ventilgröße (2-Wege) GE-Kreislauf DN 40 40 50 50 50 50 50
Luftvolumenstrom m³/h 11000 14000 16000 17500 20000 23000 25500
Rückluftfilterklasse M5 M5 M5 M5 M5 M5 M5
Schalldruckpegel dBA 52,1 55,0 52,7 54,2 56,0 58,1 59,6
Gewicht - Wärmetauschereinheit kg 695 698 782 790 950 968 1002
Gewicht - Ventilatoreinheit kg 230 310 397
Gesamtgewicht kg 925 928 1092 1100 1347 1365 1399
Baugröße 4 5 7
EN
5.8 Technical Data - ALR ... GES - 1 circuit
Type
DX-cooling cap. R410A total
33°C/30% r.h. sensible kW
CW-cooling capacity total
26°C/60% r.h. sensible kW
Nominal refrigerant charge R410A kg
Water flow m³/h
Pressure loss water side - summer kPa
Pressure loss water side - winter kPa
GE coil content dm³
G valve size (2-way) DN
GE valve size (2-way) DN
Airflow m³/h
Return air filter class
Sound pressure level dBA
Weight - heat exchanger unit kg
Weight - fan unit kg
Total weight kg
Cabinet size
5.9 Technical Data - ALR ... GES - 2 circuits
1
refrigerant circuit 1/ circuit 2.
For electrical data, (compressor and fan power consumption) see e-data sheet.
The electrical power consumption of the fans must be added to the room load.
Type
DX-cooling cap. R410A total
33°C/30% r.h. sensible kW
CW-cooling capacity total
33°C/30% r.h. sensible kW
Nominal refrigerant charge R410A 1kg
Water flow m³/h
Pressure loss water side - summer kPa
Pressure loss water side - winter kPa
GE coil content dm³
Valve size (2-way) G circuit DN
Valve size (2-way) GE circuit DN
Airflow m³/h
Return air filter class
Sound pressure level dBA
Weight - heat exchanger unit kg
Weight - fan unit kg
Total weight kg
Cabinet size
on request

16 /11.2015/G17D
1980 10
35
2496
515
1546
B
515
T
Baugröße B T T* N°
1 950 890 945 1
2 1400 890 945 1
3 1750 890 945 2
4 2200 890 945 2
5 2550 890 945 3
7 3110 980 1035 4
55
EN
5.10 Dimensional drawings
Side view
Cabinet size
T*: Depth including main switch
N°: Number of fans
Main switch
Projecting main switch

/11.2015/G17D 17
0,5m
1m
EN
6. Installation
6.1 Positioning
Check that the installation site is appropriated for the unit weight, which you can read in the technical data.
The A/C unit is designed for the inside installation on a level base. The solid base frame contributes significantly to
an even weight distribution. When selecting the installation site take into account the necessary clearances for the
maintenance and the air flow.
Children, unauthorized persons and animals may not have access to the installation site of the A/C unit.
Vibrations emanate from the A/C unit due to compressor operation. To avoid such vibrations, install the unit on a
vibration absorbing base, as it is realized in case of a positioning on a raised floor socket e.g. by Mafund strips.
Do not operate the A/C unit in office rooms or other rooms sensitive to noise.
Maintenance
clearance
Air intake area
The unit may not be operated in an explosive atmosphere!
Before the positioning prepare the fan unit for the electrical wiring by unscrewing the fan protection grilles and by
removing the cable feedthrough plates.
The two cable feedthrough plates are located in the frame of the fan unit and
secured by two Torx screws that are screwed in from below.
2 screws
cable feedthrough plate with
6 openings
Bottom view
cable feedthrough plate
top view
The maintenance clearance of 1 m must also be maintained
in front of the fan unit in the raised floor.

18 /11.2015/G17DEN
Locate the fan unit in the raised floor first. The di-
stance from the upper edge of the raised floor to
the base should at least be 515 mm.
If the raised floor is higher you can additionally use a
raised floor socket to equalize the height difference.
Place the heat exchanger unit on the raised floor in
front of the cut off for the fan unit.
Both the heat exchanger unit and the fan unit are
equipped with rolls and the corresponding cut offs
in which the rolls of the other unit disappear.
Now push the heat exchanger unit with two persons
from the front onto the fan unit.
Cut-out for rolls of the heat
exchanger unit
Roll in the fan unit

/11.2015/G17D 19
Baugröße Anzahl
1 - 3 2
4 3
5 4
7 5
EN
The heat exchanger unit and fan unit may be bolted
together, to prevent a move of both parts to each other
(e.g. in case of a shock from the front).
The screws and washers are included, drill holes are
existant, appropriate cage nuts are already installed in
the fan unit.
The M10 screws must be inserted in the lower cross bar
on the front side of the heat exchanger unit from above.
The number of screws varies with the size:
Size Number
Detail drawing
Bolting of heat exchanger unit and fan unit
drill hole
cage nut

20 /11.2015/G17D
A,-Gerät 201 291 351 381 451 561 431 551
Druckleitung 16 22 22 22 22 22 22 22
Flüssigkeitsleitung 16 16 16 16 16 22 16 16
AS-Gerät 271 401 511
Druckleitung 16 18 22
Flüssigkeitsleitung 16 16 22
*(123)
*(143)
85
EN
Refrigerant line connection (1 circuit) in mm
A unit
Pressure line
Liquid line
6.2 Connection of the piping
6.2.1 Refrigerant piping (A/AS units)
Pipe entrance area
for refrigerant lines
*distance from the exterior side of the side panel to the zone of introduction. This dimension is decisive if several
units are installed fitting exactly side by side.
AS unit
Pressure line
Liquid line
To design the piping between the A/C unit and the condenser follow the instructions in chapter "2. Refrigerant piping"
of document "General-DX". This document is available in the e-Stulz area.
6.2.1.2 Position of the refrigerant connections
6.2.1.1 Design
Size 1 Sizes 2 - 7
A/C units of the versions A and AS are equipped with an open refrigerant circuit. To close the circuit these units must
be connected to an external condenser.