LU-VE ALFA User manual

AHE00049 2002
9460163200-02
1
Air cooled condensers & gas coolers
Product manual
• Health & safety
• Transportation & storage
• Installation
• Commissioning
• Operation
• Maintenance
• Troubleshooting
CS
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DE
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ORIGINAL INSTRUCTIONS
EN
EN

AHE00049 2002
2
Alfa LU-VE is a trademark registered and owned by LU-VE Group.
Alfa LU-VE reserves the right to change specifications without prior notification.
ORIGINAL INSTRUCTIONS
Index
1 Important information
1.1 Disclaimer.............................................................................................................................. 3
1.2 Intended use.......................................................................................................................... 3
  ......................................................................................... 3
1.4 Warning symbols................................................................................................................... 3
2 General
2.1 Operating principle ................................................................................................................ 4
2.2 Safety .................................................................................................................................... 4
2.3 Transport and storage ........................................................................................................... 4
2.4 Checks at delivery................................................................................................................. 5
2.5 Return of unused heat exchangers ....................................................................................... 5
2.6 Guarantee ............................................................................................................................. 5
2.7 Damaged heat exchangers ................................................................................................... 5
3 Installation & Operation
3.1 Location................................................................................................................................. 5
3.2 Lifting..................................................................................................................................... 6
3.3 Mounting................................................................................................................................ 6
3.4 Pipework and connections .................................................................................................... 6
3.5 Electrical connections............................................................................................................ 6
3.6 Power failure ......................................................................................................................... 6
3.7 Fan motors ............................................................................................................................ 6
3.8 Sound level............................................................................................................................ 6
3.9 Commissioning...................................................................................................................... 7
3.10 Disposal................................................................................................................................. 7
4 Maintenance
4.1 General.................................................................................................................................. 7
4.2 Cleaning ................................................................................................................................ 7
4.3 Casing ................................................................................................................................... 7
4.4 Coil ........................................................................................................................................ 7
4.5 Fans ...................................................................................................................................... 7
4.6 Shut down periods................................................................................................................. 8
5 Residual risks...................................................................................................................... 8
6 Troubleshooting .................................................................................................................. 8
EN

AHE00049 2002
3
Alfa LU-VE is a trademark registered and owned by LU-VE Group.
Alfa LU-VE reserves the right to change specifications without prior notification.
1 Important information
1.1 Disclaimer
This Product Manual applies to all Alfa LU-VE air cooled condenser and gas cooler products and
is supplied in combination with a product line specific Instruction Manual. Both manuals must be
carefully examined and instructions should be followed up at all times. Alfa LU-VE does not accept
liability for any damage resulting from non-compliance to the instructions as given in the manuals
and order-related documents.
1.2 Intended use
Air cooled condensers and gas coolers are partly completed machinery according to Machine
Directive 2006/42/EC, intended for incorporation in cooling systems and for outdoor installa-
tion. Declarations of Incorporation are available on alfa.luvegroup.com. The units may not be put
into operation until the conformity of the complete machine or cooling system has been declared
according to the following standards and directives:
• Pressure Equipment Directive 2014/68/EU
• Machine Directive 2006/42/EC
• Low Voltage Directive 2014/35/EU
• Electrical Equipment of Machines EN 60204-1: 2006
• Electro Magnetic Compatibility 2014/30/EU
• Any applicable local or national legislation
1.3 Where to find product information
Detailed technical data for individual product models are available in order related documents,
on the product label and in product data sheets. Comprehensive technical information for all Alfa
LU-VE air heat exchanger products is available on-line on alfa.luvegroup.com.
This includes:
• Product manuals
• Instruction manuals
• Product leaflets & brochures
• Product data sheets (selection software)
• Dimensional drawings
• Electrical wiring diagrams
• Certificates
Alfa LU-VE offers world-wide service and support. In case of any questions or uncertainty please
contact your local Alfa LU-VE representative.
Contact addresses are available at alfa.luvegroup.com.
1.4 Warning symbols
The following warning symbols are used in Alfa LU-VE product & instruction manuals.
General warning. Risk of malfunc-
tioning and/or damage. Hot surfaces. Danger of burns. Wear adequate protection.
Moving parts. Danger of injuries.
Do not operate without protection
guard mounted.
Sharp surface. Danger of cutting
injuries. Wear adequate protection.
Overhead load. Never stand or
walk below the load. Mandatory prescription. Follow instructions as provided.
Forklift trucks or other logistic vehi-
cles. Stay clear of working space. Risk of injuries. Wear head protection.
alfa.luvegroup.com
EN

AHE00049 2002
4
Alfa LU-VE is a trademark registered and owned by LU-VE Group.
Alfa LU-VE reserves the right to change specifications without prior notification.
Electrically powered component.
Switch off power supply before any
maintenance or installation activity.
Risk of injuries.
Wear safety footwear.
Risk of injuries.
Wear protective gloves.
2 General
2.1 Operating principle
Alfa LU-VE finned coil air heat exchangers have been designed to achieve an optimized exchange
of thermal energy between air and another medium. The ‘heart’ of our air heat exchangers is the
finned coil, built up from a circuit of interconnected tube serpentines and fins to increase the heat
exchanging surface. Thanks to the combination of key design variables (coil materials, coil geom-
etry, casing design, fan type), air heat exchangers are very versatile products with a great variety of
applications in many industries.
Air cooled condensers are key components in air cooling systems with an evaporating refrigerant
like HFO/HFC, ammonia or CO2. In these systems air cooled condensers are used to condensate
(liquify) the hot, compressed refrigerant gas using relatively cold outside air to cool down the cond-
erser tubes.
CO2gas coolers replace traditional air-cooled condensers in refrigerating systems designed for
the use of carbon dioxide as a single refrigerant. In a gas cooler, hot compressed CO2gas flows
through the cooler tubes and is cooled down by the ambient air that is forced through the coil. The
refrigerant gas is not liquefied in the gas cooler, but later on in the expansion valve. Air cooled gas
coolers operate with considerably higher pressures than air cooled condensers.
2.2 Safety
Ensure that the following guidelines are observed:
• All work on the equipment must be carried out by trained personnel.
• The electrical supply is suitable for the equipment supplied.
• Refrigerant, temperature and pressure must agree with the data on the product label of the rel-
evant heat exchanger.
• As the heat exchanger is supplied indirectly, the producer is not acquainted with its actual appli-
cation.
• The heat exchanger should be installed in conformance with all recognized national standards of
electrical and refrigeration installation practice.
• The supplied heat exchanger is optimized for the refrigerants as stated in the data sheet or
order documents. Please contact Alfa LU-VE before using any other refrigerants. The allowed
maximum pressure (design pressure PS) is noted on the type plate. During production the heat
exchanger was subjected to a strength test exceeding the design pressure PS. However, during
normal use the design pressure PS may not be exceeded.
• Heat exchangers supplied by Alfa LU-VE are normally not equipped with a high-pressure cut
out. The installer is responsible for fitting a high-pressure cut out on the system in which the
heat exchanger is used.
• The heat exchanger shall not be blocked in. If the ambient temperature rises, the pressure could
rise and exceed the design pressure.
• It is not permitted to use the heat exchanger for any purpose other than the one it was designed
for by Alfa LU-VE.
2.3 Transport and storage
During transportation the heat exchanger must be handled with all required care. Any instruction or
warning signs attached to the heat exchanger or the packaging must be followed. Avoid shocks or
continuous vibrations during transport. These may cause damage to the product. If required, con-
sult Alfa LU-VE and disassemble during transport any parts that are likely to be set into vibration.
Air heat exchangers must be adequately fixed on the transport vehicle. If temporary storage of the
heat exchanger is required, the following points should be observed:
• Store the heat exchanger in its packing, in a dry place with sufficient protection against sun and
other environmental influences.
EN

AHE00049 2002
5
Alfa LU-VE is a trademark registered and owned by LU-VE Group.
Alfa LU-VE reserves the right to change specifications without prior notification.
• Always place air heat exchangers on an even surface.
• Do not stack air heat exchangers unless explicitly indicated this is allowed.
• Storage temperature between -40° C and +50 °C.
• Never open or remove the schrader valves. Overpressure in the coil must be maintained.
Shelf life of air cooled condensers and gas coolers is one year. If longer storage periods occur,
carefully check:
• Proper functioning of the fan motor.
• Mounting feet, lifting lugs and fan fixings for corrosion.
2.4 Checks at delivery
All finned coils are pressure tested with dry air, sealed and supplied with a slight overpressure. Prior
to installation, the leak resistance must be checked with the schrader valve.
2.5 Return of unused heat exchangers
Air heat exchangers that have been delivered in accordance with orders are in principle not return-
able. Heat exchangers can only be returned under certain conditions and following consultation with
Alfa LU-VE. This applies exclusively to unused units. The heat exchangers that are to be returned
should be delivered carriage paid to Alfa LU-VE in the original, undamaged and unwritten factory
packaging. Not returnable are:
• Heat exchangers older than three months from the invoice date.
• Heat exchangers that have already been built in and/or are damaged.
2.6 Guarantee
For our guarantee conditions, we refer to the Terms of Delivery. In general, the warranty period
between Alfa LU-VE and the customer is 24 months from factory invoice date or 12 months of
operation, which ever comes first. Heat exchangers must not be returned or disposed of, other
than in accordance with instructions from Alfa LU-VE. Contact your local Alfa LU-VE representative
before any remedial action is taken on the units, otherwise warranty may be void.
2.7 Damaged heat exchangers
At the moment of delivery, carefully check the units. Any present damage must be reported on the
delivery note with a description of the damage. Damaged heat exchangers, including when the
damage is not externally visible, are to be reported to the shipping agent and Alfa LU-VE within 24
hours.
3 Installation & Operation
The instructions below are complementary to the information in the instruction manual that is sup-
plied with every unit.
3.1 Location
Heat exchangers should be positioned such that the following criteria are met:
• Adequate space must be left on the air inlet side of the heat exchanger. The air discharge side
should be free of restrictions. Hot air recirculation is to be avoided. More detailed instructions as
given in the instruction manual are to be respected.
• If several heat exchangers are set up close to one another, this is to be carried out in such a
way that there is no danger of short circuiting of the air flow.
• The heat exchanger should not be connected to ducting on either the air inlet side or discharge
side, unless the heat exchanger has been specifically designed for such an application.
• Unless explicitly stated in the product documentation, air cooled condensers and gas coolers are
not intended for use in potentially explosive environments.
It is important to remember that the total amount of heat to be dissipated depends on receiving the
full design air volume at the design entry air temperature, which allows this air to be freely dis-
charged after passing through the heat exchanger. Any restrictions may impair the performance of
the heat exchanger. If in doubt, please check with Alfa LU-VE.
EN

AHE00049 2002
6
Alfa LU-VE is a trademark registered and owned by LU-VE Group.
Alfa LU-VE reserves the right to change specifications without prior notification.
3.2 Lifting
Condensers and gas coolers can be lifted from above using a hoist. Ensure that the weight is
distributed evenly over all the lifting lugs. In the case of long heat exchangers, the use of a hoisting
beam may be required. Use of a fork-lift is permitted with proper characteristics in relation to weight
and depth of the heat exchanger. Weight information and dimensions are shown on the product
label and/or in the relevant product documentation. It is important that weight is distributed evenly.
Direct or indirect lifting under the coil block is not permitted. All lifting procedures must be carried
out carefully by properly qualified personnel, ensuring absolute safety at all times.
If in doubt about the proper hoisting or lifting method, please check with Alfa LU-VE. Check the
instruction manual for detailed lifting instructions about specific heat exchanger models.
3.3 Mounting
All heat exchangers must be set up level. Weight information and dimensions are listed on the
product label and/or in the relevant product documentation.
3.4 Pipework and connections
All pipework and connections must be made in
accordance with good refrigeration design and
installation practice. Do not bend the con-
nection tubes! Ensure that no stresses are trans-
mitted to the pipework. All pipework should be
adequately supported to prevent vibration or
external load on the unit headers, etc.
If condensers are connected in parallel,
allowance must be made for the fall in pressure
on the refrigerant side. If necessary, fall lines
must be applied.
3.5 Electrical connections
All electrical connections must be made in accordance with the locally valid regulations and in con-
formance with good installation practice. The site supply voltage, frequency, accepted power rating
and number of phases must comply with the details on the technical documentation. All electrical
supply lines must be connected to the terminal boxes through suitable waterproof glands using bot-
tom entry or, in case of horizontal installation, the cable is routed to form a water trap.
If the heat exchangers are installed outdoors and there is to be an appreciable delay in putting the
plant into operation, a temporary electrical supply should be connected to each motor, sufficient
to run for at least 4 hours. This procedure should be carried out at least once every 4 weeks, until
the heat exchanger is fully operational. It is up to the end user to verify the conditions for protec-
tion by automatic disconnection of supply, according to applicable standards. Heat exchangers are
designed for TN power systems. The insulation fault protection must be part of power supply of the
heat exchanger and it is not supplied by the manufacturer.
3.6 Power failure
In order to avoid damage to the compressor, the refrigerant supply must be closed in the event of
power failure, e.g. by closing the magnetic valve. Safety measures elsewhere in the system will
prevent the pressure in the heat exchanger from exceeding the design pressure PS.
3.7 Fan motors
The maximum load of the motors and the recommended settings for the overload relays are to be
respected. The built-in thermal overload protection must be integrated in the control circuit when
a connection in the terminal box is present. The electrical control circuit should be arranged with
a manual reset device in order to prevent continuous on/off switching (tripping) of the motors.
Suppliers and manufacturers of electrical motors provide no guarantee for motors that are com-
busted through overload. For correct installation and operation of fan speed control systems, follow
instructions given in the controller and fan manuals.
3.8 Sound level
Sound levels are specified according to EN13487. Depending on construction and the materials
used for the space in which the heat exchangers are placed, the measured sound level values may
vary significantly from the documented value.
EN
P1–P
2
syphon syphon

AHE00049 2002
7
Alfa LU-VE is a trademark registered and owned by LU-VE Group.
Alfa LU-VE reserves the right to change specifications without prior notification.
3.9 Commissioning
All connections must be thoroughly leak tested and the system evacuated in line with normal refrig-
eration practice. All bolts, fastenings, electrical connections etc., must be checked for security. In
addition, the fans should be checked for correct rotation. If necessary, change the phase wiring to
obtain correct rotation. Set all apparatus to operating temperatures and test run the heat exchanger
to check for undue vibrations, badly secured components, etc.
3.10 Disposal
After decommissioning the heat exchanger coil should be emptied from refrigerant fluids. Avoid
any emissions in the environment. Any refrigerants and oil residuals must be properly disposed of
according to applicable environmental regulations. The fully emptied heat exchanger unit, including
all electrical components, should be handed in to the proper authoritized companies for recycling.
4 Maintenance
4.1 General
It is essential after delivery that adequate protection and inspection are carried out on the equip-
ment. This is especially important if there is any delay in installing or commissioning the equipment.
After commissioning and adjusting, the heat exchanger will require maintenance. Regular checks
and good maintenance will ensure trouble-free operation. The frequency of checks will depend on
the site location and specific operating conditions. Equipment installed in industrial or coastal areas
generally requires more frequent inspections than the same equipment in rural, unpolluted areas.
Damage can occur during site installation and during the period prior to commissioning. Inspections
and remedial work must take place during this period. On sites where building work is in progress, it
is strongly advised that the entire heat exchanger be covered up to protect it from dirt and damage
until the time of commissioning.
4.2 Cleaning
A coil block should be kept clean to guarantee it works well. The user of the heat exchanger should
ensure that the cleaning agents that are used do not have a corrosive effect on the materials used
by Alfa LU-VE.
4.3 Casing
Casework checks should be carried out at least every 3 months. In doing so, inspect for any dete-
rioration of the coating and/or corrosion. If such flaws are noted, take immediately remedial action.
Should any damage occur during installation, this should be repaired to prevent further deteriora-
tion.
4.4 Coil
The heat exchanger coil should be checked at least every 3 months for contamination and any
improper material. In addition, any unusual vibration of the fans should be checked. The coil should
be cleaned as instructed when necessary, using low pressure compressed air or a jet of water
directed inverse to the air flow and perpendicular to the coil to prevent bending or damaging of the
fins. If fins are bent, they can be straightened using the repairing tool (comb). Care must be taken
not to direct the water jet directly onto fan motors or electric control panels. It should be noted that
abnormal atmospheric conditions can greatly harm the lifetime of the finned coil.
4.5 Fans
Fans should be checked 3 months after commissioning and thereafter depending on operating
conditions and as experience dictates, for any dirt build-up and/or undue vibration, which could
ultimately cause damage to the fan or the heat exchanger itself. Ensure complete electrical isolation
before removing the fan guards. Fan blades should also be checked for any erosion or corrosion
and remedial action taken as necessary. All dirt and other contamination (e.g. ice or snow) should
be removed to avoid imbalanced running of the fan and motor bearing overheating. The security of
the fan fastenings and the integrity of the components should be checked integrally as part of the
routine maintenance operation. Particular attention should be paid to the fastening screws and bal-
ance of the fan blades.
Where fan guards or portions of the casing have had to be removed for inspection, ensure that
these items have been refitted and secured correctly before restarting the heat exchanger.
EN

AHE00049 2002
8
Alfa LU-VE is a trademark registered and owned by LU-VE Group.
Alfa LU-VE reserves the right to change specifications without prior notification.
We recommend that a "Permit to Work" system be used to carry out all maintenance work, to
ensure that only properly qualified staff carry out the work and that other staff on the site are made
aware of the safety aspects related to the heat exchanger.
4.6 Shut down periods
During prolonged shut down periods, maintenance should be carried out as detailed above. If the
shut down period is extended, all electric motors should be run once every four weeks for a mini-
mum of 4 hours. EC fans must be kept powered during shut down periods.
5 Residual risks
In the previous paragraphs many risks related to handling, installing and operating condenser and
gas cooler units have been pointed out. Below is an overview of the most relevant residual risks
that must be accounted for.
• Sharp edges & corners - There is a substantial risk of injuries due to sharp edges and corners
of coil and casing. Make sure to wear reliable protection during any handling of the unit and
maintenance activities.
• End covers - Removable end covers may only be opened by qualified staff. Ensure the end
covers are properly secured after closing.
• Fans - Rotating fans can cause injuries to fingers. Never operate fans without the mounted pro-
tection grid and take care of loose clothing. Switch power off before any maintenance.
• Electrics - Power must be switched off before any work or maintenance on the unit. Secure the
unit against unintentional switching on.
• Burns - Unit tubing and the air around the unit can be hot. Use reliable protection.
• Working fluids - Working fluids might be toxic and/or flammable. These substances may only
be handled by qualified staff while taking all necessary precautions and following any applicable
regulations.
• Fan vibrations - Continuous fan vibrations can cause material failure and hence a risk of injury
or damage due to loose parts. Therefore vibrations must be reduced to a minimum at all times.
6 Troubleshooting
Fault Possible cause Required action
Fan motor not function-
ing No power supply Check/restore power supply
No control signal (EC motors) Check/restore control signal
Fan blade blocked Remove obstruction
Fan motor burnt - Check for fan blade obstructions
- Check thermal protection device
- Replace fan motor
Excess motor noise Defective fan motor bearing Replace fan motor
Excess vibrations Loose fan fasteners Tighten fasteners
Unbalanced fan blades Replace fan blades
Insufficient capacity Heat exchanger coil dirty/
blocked Clean coil
Fans not (properly) functioning Check fans
Refrigerant supply/pressure
insufficient Restore refrigerant supply/pressure to reference values.
Refrigerant leakage Refrigerant containing parts
damaged - Stop fans - Close refrigerant supply
- Repair leak
EN

AHE00049 2002
9460163200-02
9


• 
• 
• 
• Uvedení do provozu
• Provoz
• 
• 
CS

AHE00049 2002
10
Alfa LU-VE je registrovaná obchodní značka vlastněná společností LU-VE Group.
Společnost Alfa LU-VE si vyhrazuje právo na změnu technických údajů bez předchozího upozornění.

Index
 
  .......................................................................................................11
 .................................................................................................................11
  ............................................................................................11
  ...............................................................................................................11
 
2.1 Provozní zásady.................................................................................................................. 12
 .......................................................................................................................... 12
  ........................................................................................................ 12
  .............................................................................................................. 13
 ................................................................................... 13
2.6 Záruka ................................................................................................................................. 13
 .................................................................................................. 13
3 Instalace a provoz
 .............................................................................................................................. 13
3.2 Zvedání ............................................................................................................................... 13
 ................................................................................................................................. 14
  ................................................................................................................ 14
  ............................................................................................................... 14
 ................................................................................................................ 14
 ................................................................................................................ 14
3.8 Hladina zvuku...................................................................................................................... 14
3.9 Uvedení do provozu ............................................................................................................ 14
3.10 Likvidace ............................................................................................................................. 15
 
  .......................................................................................................................... 15
  ................................................................................................................................. 15
 .................................................................................................................................... 15
4.4 Spirála ................................................................................................................................. 15
4.5 Ventilátory............................................................................................................................ 15
4.6 Období odstávky ................................................................................................................. 15
5 Zbytková rizika .................................................................................................................. 16
  .......................................................................................................... 16
CS

AHE00049 2002
11
Alfa LU-VE je registrovaná obchodní značka vlastněná společností LU-VE Group.
Společnost Alfa LU-VE si vyhrazuje právo na změnu technických údajů bez předchozího upozornění.
 
 





 


venkovní instalaci. Prohlášení o zabudování jsou k dispozici na alfa.luvegroup.com. Jednotky nesmí


• 
• 
• 
• 
• 
• Veškerá aplikovatelná místní nebo národní legislativa
 


tepla Alfa LU-VE najdete on-line na alfa.luvegroup.com.
Jsou zde zahrnuty:
• 
• 
• 
• 
• 
• Elektrická zapojení
• Atesty


alfa.luvegroup.com.
 


selhání a/nebo poškození.  


Neprovozujte bez nasazeného
ochranného krytu.


ochranu.

-
nem.




pracovní prostor.


alfa.luvegroup.com
CS

AHE00049 2002
12
Alfa LU-VE je registrovaná obchodní značka vlastněná společností LU-VE Group.
Společnost Alfa LU-VE si vyhrazuje právo na změnu technických údajů bez předchozího upozornění.


elektrické napájení.




 
 







2


2-

2
-
-
tory.
 

• 
• 
• 
• 
• 

• -
-



• 


• -

• -
ností Alfa LU-VE.
 
-





• -

• 
• 
• Skladovací teplota mezi -40 °C a +50 °C.
CS

AHE00049 2002
13
Alfa LU-VE je registrovaná obchodní značka vlastněná společností LU-VE Group.
Společnost Alfa LU-VE si vyhrazuje právo na změnu technických údajů bez předchozího upozornění.


• správnou funkci ventilátoru motoru.
• 
 


 
-



Nevratné jsou tyto:
• 
• 
2.6 Záruka
-

-


záruky zrušena.
 
-
-


3 Instalace a provoz
-
notkou.
 

• 


• 

• -

• 

-



 







CS

AHE00049 2002
14
Alfa LU-VE je registrovaná obchodní značka vlastněná společností LU-VE Group.
Společnost Alfa LU-VE si vyhrazuje právo na změnu technických údajů bez předchozího upozornění.




 


 










 

-

-


-
-



-
níku tepla a není dodávána výrobcem.
 

-

 

-


-


3.8 Hladina zvuku



 

-
-

-

P1–P
2
syphon syphon
CS

AHE00049 2002
15
Alfa LU-VE je registrovaná obchodní značka vlastněná společností LU-VE Group.
Společnost Alfa LU-VE si vyhrazuje právo na změnu technických údajů bez předchozího upozornění.
3.10 Likvidace


-

 
 



-






 
-


 

-

zhoršování.
4.4 Spirála
-



-



4.5 Ventilátory

-





-




-

 



zapojeny.
CS

AHE00049 2002
16
Alfa LU-VE je registrovaná obchodní značka vlastněná společností LU-VE Group.
Společnost Alfa LU-VE si vyhrazuje právo na změnu technických údajů bez předchozího upozornění.
5 Zbytková rizika
-
-

• -

• 

• Ventilátory-


• 
jednotku proti náhodnému zapnutí.
• Popáleniny-
vou ochranu.
• Chladiva 
-

• Vibrace ventilátoru

minimum za všech okolností.

Závada  
Motor ventilátoru nefun-
guje Chybí zdroj elektrického napá- jení Zkontrolujte/obnovte napájecí zdroj

motory) Zkontrolujte/ obnovte kontrolní sig- nály
Lopatka ventilátoru se zablo-
kovala 
 
ventilátoru
-
ny

 -
toru 
 -
látoru 
Nevyrovnané lopatky ventilá-
toru 
 
 
 Zkontrolujte ventilátory
 -
ní hodnoty.
Prosakování chladiva 
chladivo - Zastavte ventilátory 
- Opravte prosakování
CS

AHE00049 2002
9460163200-02
17
Luftkølede kondensatorer og gaskølere
Produktmanual
• Sundhed og sikkerhed
• Transport og opbevaring
• Installation
• Idriftsættelse
• Drift
• Vedligeholdelse
• Fejlfinding
DA

AHE00049 2002
18
Alfa LU-VE er et varemærke, der er registreret og ejet af LU-VE Group.
Alfa LU-VE forbeholder sig retten til at ændre specifikationerne uden forudgående varsel.

Indeks
1 Vigtige oplysninger
1.1 Ansvarsfraskrivelse ............................................................................................................. 19
1.2 Tilsigtet anvendelse............................................................................................................. 19
 ....................................................................................... 19
1.4 Advarselsskilte .................................................................................................................... 19
2 Generelt
2.1 Arbejdsprincip...................................................................................................................... 20
2.2 Sikkerhed ............................................................................................................................ 20
2.3 Transport og opbevaring ..................................................................................................... 20
 ............................................................................................................. 21
2.5 Tilbagetagelse af ubrugte varmevekslere ........................................................................... 21
2.6 Garanti ................................................................................................................................ 21
2.7 Beskadigede varmevekslere ............................................................................................... 21
3 Installation og drift
3.1 Placering ............................................................................................................................. 21
3.2 Løfteinstruktioner................................................................................................................. 21
3.3 Montering ............................................................................................................................ 22
3.4 Rørarbejde og tilslutninger .................................................................................................. 22
3.5 Elektriske tilslutninger.......................................................................................................... 22
3.6 Strømsvigt ........................................................................................................................... 22
3.7 Ventilatormotorer................................................................................................................. 22
3.8 Støjniveau ........................................................................................................................... 22
3.9 Idriftsættelse........................................................................................................................ 22
 󰀨........................................................................................................................ 22
4 Vedligeholdelse
4.1 Generelt............................................................................................................................... 23
4.2 Rengøring............................................................................................................................ 23
4.3 Beklædning ......................................................................................................................... 23
4.4 Spole ................................................................................................................................... 23
4.5 Ventilatorer .......................................................................................................................... 23
4.6 Stilstandsperioder................................................................................................................ 23
5 Andre farer......................................................................................................................... 24
6  .......................................................................................................................... 24
DA

AHE00049 2002
19
Alfa LU-VE er et varemærke, der er registreret og ejet af LU-VE Group.
Alfa LU-VE forbeholder sig retten til at ændre specifikationerne uden forudgående varsel.
1 Vigtige oplysninger
1.1 Ansvarsfraskrivelse
Denne Produktmanual gælder for alle Alfa LU-VEs luftkølede kondensatorer og gaskølere, og den
leveres sammen med en produktlinjespecifik Instruktionsmanual. Begge manualer skal gennemgås
omhyggeligt, og instruktionerne skal altid følges. Alfa LU-VE påtager sig intet ansvar for skader, der
skyldes, at instruktionerne i manualerne eller i ordrerelaterede dokumenter ikke er blevet overholdt.
1.2 Tilsigtet anvendelse
Luftkølede kondensatorer og gaskølere er delvist færdige maskiner i henhold til Maskindirektivet
2006/42/EF, og de er beregnet til integration i kølesystemer og udendørs installation. Erklæringer
om indregistrering findes på alfa.luvegroup.com. Luftkølere må ikke sættes i drift, før den komplette
maskine eller det komplette kølesystem er erklæret i overensstemmelse med følgende standarder
og direktiver:
• Trykudstyrsdirektivet 2014/68/EF
• Maskindirektivet 2006/42/EF
• Lavspændingsdirektivet 2014/35/EU
• Elektrisk udstyr på maskiner EN 60204-1: 2006
• Elektromagnetisk kompatibilitet 2014/30/EU
• Gældende lokal eller national lovgivning
1.3 Hvor findes produktoplysningerne
Detaljerede tekniske data vedrørende individuelle produktmodeller findes i ordrerelaterede doku-
menter, på produktstickeren og i produktdatabladene. Der findes omfattende tekniske oplysninger
om alle Alfa LU-VE-luftvarmevekslerprodukter online på alfa.luvegroup.com.
Disse omfatter:
• Produktmanualer
• Instruktionsmanualer
• Produktbrochurer
• Produktdatablade (udvalgt software)
• Måltegninger
• Diagrammer over elektrisk ledningsføring
• Certifikater
Alfa LU-VE tilbyder verdensomspændende service og support. Hvis du har spørgsmål, eller er i tvivl
om noget, bedes du kontakte din lokale Alfa LU-VE-repræsentant.

1.4 Advarselsskilte
Følgende advarselsskilte anvendes i Alfa LU-VEs produkt- og instruktionsmanualer.
Generel advarsel. Risiko for funkti-
onsfejl og/eller beskadigelse.
Varme overflader. Fare for for-
brænding.
Bær passende beskyttelse.
Bevægelige dele. Fare for tilskade-
komst.
Betjen ikke udstyret, uden at der er
monteret afskærmning.
Skarp overflade. Fare for at skære
sig. Bær passende beskyttelse.
Last, der hejses op eller ned. Stå
aldrig under lasten. Obligatoriske retningslinjer. Følg instruktionerne.
Gaffeltrucks og andre logisti-
ske køretøjer. Ophold dig ikke i
arbejdsområdet.
Risiko for personskade.
Bær hovedbeskyttelse.
alfa.luvegroup.com
DA

AHE00049 2002
20
Alfa LU-VE er et varemærke, der er registreret og ejet af LU-VE Group.
Alfa LU-VE forbeholder sig retten til at ændre specifikationerne uden forudgående varsel.
Elektriske dele. Afbryd strømmen
før håndterings- eller vedligeholdel-
sesaktiviteter.
Risiko for personskade.
Bær sikkerhedssko.
Risiko for personskade.
Brug beskyttelseshandsker.
2 Generelt
2.1 Arbejdsprincip
Alfa LU-VEs luftvarmevekslere med ribbede spoler er designet til at opnå en optimeret udveksling
af termisk energi mellem luft og et andet medie. Helt centralt i vores luftvarmevekslere er den ribbe-
de spole, der er opbygget af et kredsløb med internt forbundne rørserpentiner og ribber, der forøger
varmevekslingsfladen. Takket være kombinationen af centrale designvariabler (spolematerialer,
pitch-spole, beklædning, design og ventilatortype), er luftvarmevekslere særdeles alsidige produkter
med en lang række anvendelser inden for mange industrier.
Luftkølede kondensatorer er nøglekomponenter i luftkølingssystemer med et fordampningskøleme-
die, såsom HFO/HFC, ammoniak eller CO2. I disse systemer benyttes luftkølede kondensatorer til
at kondensere (gøre flydende) den varme, komprimerede kølegas ved at benytte den relativt kølige-
re udendørsluft til at nedkøle kondensatorrørene.
CO2-gaskølere erstatter de traditionelle luftkølede kondensatorer i kølesystemer, der er designet til
at bruge CO2som eneste kølemedie. I en gaskøler flyder den varme, komprimerede CO2gennem
-
denseres ikke i gaskøleren, dette sker senere i ekspansionsventilen. Luftkølede gaskølere kører
med betydeligt højere tryk end luftkølede kondansatorer.
2.2 Sikkerhed
Sørg for, at følgende retningslinjer følges:
• Alt arbejde på udstyr skal udføres af uddannet personale.
• Strømforsyningen svarer til det leverede udstyr.
• -
dende varmeveksler.
• Da varmeveksleren leveres indirekte, er producenten ikke bekendt med den aktuelle anvendel-
se.
• Varmeveksleren skal monteres i overensstemmelse med de anerkendte nationale standarder
med hensyn til elektrotekniske og køletekniske installationer.
• Den leverede varmeveksler er egnet til de primære kølemedier, der er angivet i databladet eller
ordredokumenterne. Før der bruges andre medier, bør Alfa LU-VE kontaktes. Det maksimalt
tilladte tryk (designtryk PS) er anført på typeskiltet. I forbindelse med produktionen har varme-
veksleren gennemgået en styrketest, der overskred designtrykket PS. Under normal brug må
designtrykket PS dog aldrig overskrides.
• Varmevekslere, der er leveret af Alfa LU-VE, er i reglen ikke udstyret med en højtrykssikring. Det
er installatørens ansvar at montere en højtrykssikring i det system, hvor varmeveksleren bruges.
• Varmeveksleren må ikke indkapsles. Hvis omgivelsestemperaturen stiger, kan trykket stige og
komme til at overskride designtrykket.
• Al anden brug af varmeveksleren end den, som dette produkt er konstrueret til af Alfa LU-VE, er
forbudt.
2.3 Transport og opbevaring
Under transport skal varmeveksleren håndteres med al den påkrævede forsigtighed. Alle de
instruktioner og advarselsskilte, der er placeret på varmeveksleren eller emballagen, skal følges.
Undgå stød og kontinuerlige vibrationer under transport. Disse kan forårsage skader på produktet.
-
port. Luftvarmevekslere skal fastgøres forsvarligt på transportkøretøjet. Hvis varmeveksleren skal
opbevares midlertidigt, skal følgende punkter overholdes:
• Opbevar varmeveksleren i emballagen på et tørt sted med tilstrækkelig beskyttelse mod sollys
og andre miljøpåvirkninger.
• Placér altid luftvarmevekslere på en jævn overflade.
• Stak ikke luftvarmevekslere, medmindre det udtrykkeligt er angivet, at dette er tilladt.
• Opbevaringstemperaturen er mellem -40° C og +50 °C.
DA