Alfalaval Arctigo IS Manuale utente
Arctigo IS/IST
Instruction manual
ORIGINAL INSTRUCTIONS
AHE00041EN
Contents
1 Important information..............................................................................3
1.1 Disclaimer..................................................................................................................................... 3
1.2 Intended use................................................................................................................................. 3
1.3 Where to find product information................................................................................................3
2 Product description................................................................................. 4
2.1 General information and application.............................................................................................4
2.2 Standard configuration..................................................................................................................4
2.3 Options..........................................................................................................................................4
2.4 Code description...........................................................................................................................5
3 Product labels.......................................................................................... 7
4 Unpacking and lifting............................................................................ 10
5 Installation...............................................................................................13
5.1 Assembly.....................................................................................................................................13
5.2 Mounting dimensions..................................................................................................................13
5.3 Mounting bracket........................................................................................................................ 14
5.4 Technical spaces........................................................................................................................ 14
5.5 Drain line.....................................................................................................................................15
5.6 Electrical connection...................................................................................................................16
5.7 Hot-gas defrost........................................................................................................................... 16
6 Maintenance............................................................................................19
6.1 Fan replacement.........................................................................................................................19
6.2 Driptray........................................................................................................................................19
6.3 Side covers................................................................................................................................. 20
6.4 Defrost heater element replacement.......................................................................................... 20
6.5 Sockring mounting...................................................................................................................... 20
6.5.1 Fan guard fixed on the inner side of the fan cowl........................................................22
6.5.2 Fan guard fixed on the edge of the fan cowl............................................................... 22
6.6 Shutupsock mounting................................................................................................................. 23
7 Spare parts............................................................................................. 26
1 Important information
1.1 Disclaimer
This Instruction Manual applies to all Alfa Laval Arctigo IS/IST industrial air cooler products and is supplied
in combination with the Alfa Laval Air Cooler Product Manual AHE00042. Both manuals must be carefully
examined and instructions should be followed up at all times. Alfa Laval 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 coolers are partly completed machinery according to Machine Directive 2006/42/EC and intended for
incorporation in cooling systems. Declarations of Incorporation are available on www.alfalaval.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 IEC 60204-1
• 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 Laval air heat
exchanger products is available on-line on www.alfalaval.com. This includes:
• Product manuals
• Instruction manuals
• Product leaflets & brochures
• Product data sheets (selection software)
• Dimensional drawings
• Electrical wiring diagrams
• Certificates
Arctigo IS
Alfa Laval offers world-wide service and support in over 55 countries. In case of any questions
or uncertainty please contact your local Alfa Laval representative. Contact addresses are available at
www.alfalaval.com.
AHE00041EN 3Alfa Laval is a trademark registered and owned by Alfa Laval Corporate AB.
Alfa Laval reserves the right to change this specification without prior notification.
2 Product description
2.1 General information and application
Arctigo IS/IST is a wide and flexible range of single discharge industrial air coolers for both cooling and
freezing applications in medium to large cold rooms, designed to keep fresh and frozen goods refrigerated
from +10 to -40 °C, with either high or low humidity content.
The Arctigo range offers a wide variety of cooler configurations and a long list of options, always allowing
to select the best model to suit all applications in industrial cooling installations.
Arctigo cooler models are available for dedicated applications.
• Refrigerants: HFO/HFC, ammonia, brine, CO2
• Capacity (SC2): 3 up to 250 kW
• Air volume: 3,000 up to 120,000 m3/h.
Refrigerant application Design pressure
HFO/HFC 33 bar
Ammonia 30 bar
CO2 33-40-50-60 bar
Brine 10 bar
2.2 Standard configuration
• Finned coil:
• 8 coil block modules
• 3, 4, 6, 8 or 10 tube rows deep
• Tubing ø 5/8”Cu ripple fin, smooth Cu tubing for brine or smooth stainless steel.
• Tube pitch 50 mm square or 48 mm triangular.
• Corrugated Alu-fins
• Fin spacings 4, 5, 6, 7, 8, 10 and 12 mm.
• 1 to 8 Fans, ø 450 mm up to ø 1000 mm, drawing or blowing through the coil. 2-Speed fan motors
400/50-60/3 or 230/50-6-/1 (ø 450 only), two noise levels (D/Y). AC/EC Fan motors with dynamically
and statically balanced external rotors, manufactured in accordance with VDE 530/12.84 IP54 class F.
Integrated thermo contacts (Clickson) provide reliable protection against thermal overload.
• Corrosion resistant materials: coil frame and casing pre-galvanized sheet steel, epoxy coated RAL
9002.
• Hinged side panels and driptray, drain(s) 1½" BSP external
• Fitted with schräder valve on the suction connection for testing purposes.
• Refrigerant connections right or left (L=default).
• Sufficient room for fitting the expansion valve inside.
• Suitable for dry expansion or pumped system.
• Stickers indicate fan direction and refrigerant in/out.
2.3 Options
• Defrost systems (incl. connection box for all electric defrost system)
AHE00041EN 4Alfa Laval is a trademark registered and owned by Alfa Laval Corporate AB.
Alfa Laval reserves the right to change this specification without prior notification.
• Electric defrost - drip tray (E1)
• Electric defrost - heavy (E2)
• Electric defrost - light (E4)
• Hotgas defrost - light, not connected (HG1)
• Hotgas defrost - heavy, not connected (HG2)
• Hotgas defrost - light, connected (HG1C)
• Hotgas defrost - heavy, connected (HG2C)
• Water defrost (W1)
• Water defrost - low temperatures (W2)
• Hot water/glycol defrost light/heavy (HW1/HW2)
• Defrost damper heater (E5)
• Diffusor (D)
• Diffusor with defrost damper (DO)
• Hinged fan ring (HF)
• Fan ring heater (FRH)
• Inlet/discharge hood 45/90° (H2/H1)
• Driptray insulation 13 mm styropore + cladding (I2)
• Drain kit adapter, rubber O-ring and 45° 40 mm PVC connection,freely adjustable into either horizontal
or vertical position.
• Streamer (ST)
• Shutupsock (S)
• Fan casing 45//90° (FC1/FC2)
• Sockring (SR)
• Coil protection
• Pre-coated aluminium (EP)
• AlMg2.5 sea water resistant aluminium fins (SWR)
• Slip-on flanges (F) for brine models only:
• aluminium PN16 for copper tube units
• stainless steel PN16 for stainless steel tube units
• Dual fin spacing (DF) Available on request
• Stainless steel casing and frame (SSC)
• Mounting feet (MF)
• Switch on/off (SW)
• Fan motors wired to connection box (CB)
•
2.4 Code description
IS B 3 5 - 2 s H 8 CU - E 50 AL - 7.0 2H-5 - L - FA04A - D FRH
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
1. IS=Alfa Laval Arctigo industrial air cooler - single discharge
IST=Alfa Laval Arctigo industrial air cooler - tunnel cooler
2. Air direction (B=blow through, D=draw through)
3. Cooler module size (1 to 7)
4. Number of fans (1 to 8)
5. Coil geometry (1=triangular, 2=square)
6. Short coil module (s)
7. Fan speed (H=high power fan)
8. Tube rows in air direction (3, 4, 6, 8 or 10 rows)
AHE00041EN 5Alfa Laval is a trademark registered and owned by Alfa Laval Corporate AB.
Alfa Laval reserves the right to change this specification without prior notification.
9. Tube material (CU=copper, SS=stainless steel)
10.Refrigerant system (E=DX, W=brine, X=CO2, PB=pumped bottom feed, PT=pumped top feed)
11.Maximum working pressure
12.Fin material (AL=aluminium, EP=precoated aluminium, SWR=sea water resistant aluminium) 13 Fin
spacing (4, 5, 6, 7, 8, 10 and 12 mm)
13.Fin spacing (4, 5, 6, 7, 8, 10 and 12 mm)
14.Circuiting code (2H, 1H, 1/2H ... 2D, 1D, 1/2D...)
15.Refrigerant connection side (R=right, L=left - fan side view)
16.Fan motor code
17.Fan connection
18.Options
AHE00041EN 6Alfa Laval is a trademark registered and owned by Alfa Laval Corporate AB.
Alfa Laval reserves the right to change this specification without prior notification.
3 Product labels
1 Nitrogen precharge
warning
Units are delivered from the
manufacturer with an overpressure.
Check pressure on the Schrader
valve. With unpressurised unit:
Immediate report to manufacturer and
note on bill of delivery.
Model Refer to Code
description on
page 5
Item ID, Serial no. Communicate
these when
ordering spare
parts as they
identify the unit
O.A. Order
Acknowledgement
number
2 Product label
WARNING
READ INSTRUCTION MANUAL BEFORE
INSTALLATIONS OPERATIONS AND MAINTENANCE
TO AVOID INJURIES OR DAMAGE
Manufactu rer: Manuf. date:
AIR HEX ALONTE S.R.L. - Italy 04 / 2019
Model:
ISD12-16CU-EH33-AL10.0-1/2H-4-
GSE/E2
Item ID: 3289214612
Serial no. AA 2349091
O.A. 387589/20
Unit Net Weight: 171 Kg ±5%
Sn
EXAMPLE
Country of origin Italy
Unit Net Weight Check before any
lifting operation
to ensure that
proper lifting tools
are used.
AHE00041EN 7Alfa Laval is a trademark registered and owned by Alfa Laval Corporate AB.
Alfa Laval reserves the right to change this specification without prior notification.
Model Refer to Code
description on
page 5
Item ID
Serial no.
Communicate
these when
ordering spare
parts as they
identify the unit
Max DN Maximum
diameter of the
distributor tube
Fluid Group According to PED
Coil Ts Range of
operating
temperatures for
the coil
Ps Design pressure
Pt Test pressure
3 Product label - coil
WARNING
READ INSTRUCTION MANUAL BEFORE
INSTALLATIONS OPERATIONS AND MAINTENANCE
TO AVOID INJURIES OR DAMAGE
Manufactu rer: Manuf.date:
AIR HEX ALONTE S.R.L. - Italy 04 / 2019
Model: O.A. 387589/20
ISD12-16CU-EH33-AL10.0-1/2H-4-
GSE/E2
Item ID: 3289214612
Serial no. AA 2349091
Sn
Coil PED data: I
Max DN: 35
Fluid G roup 2
Coil Ts: +125/-60 °C
Ps: 33 bar
Pt: 47 bar
Test Date: 04-2019
EXAMPLE
Test date Date on which
the coil has been
pressure tested in
the factory
4 Warning sign for fans
and fan type
Type DL
Airflow direction:
B= blow-through
D= draw-through
Rotation direction:
L= left
R= right
5 Lifting from above
Use all marked lifting lugs
Preferably use hoisting beams when
lifting from above.
AHE00041EN 8Alfa Laval is a trademark registered and owned by Alfa Laval Corporate AB.
Alfa Laval reserves the right to change this specification without prior notification.
6Lifting lug Use all marked lifing lugs when lifting
from above.
7 Electrical warning Electrically powered component.
Switch off power supply before any
maintenance or installation activity.
8 Fan motor Fan motor item number
9 In/Out
IN OUT
Refrigerant connections inlet and
outlet
AHE00041EN 9Alfa Laval is a trademark registered and owned by Alfa Laval Corporate AB.
Alfa Laval reserves the right to change this specification without prior notification.
4 Unpacking and lifting
Always follow guidelines and instructions as given in the air cooler product manual AHE00042.
Arctigo air coolers are delivered in mounting position, mounted on wooden beams. Handling and
positioning can take place with use of a forklift. When more than one cooler units are delivered in a single
shipment, packed air coolers may be stacked during transportation (max. 2 units). Packed air coolers are
to be unloaded one by one and lifted according to the following procedure:
Unload and handle units only from the long side, one at a time.
When possible, casing options are supplied mounted on the unit. In such cases this warning might be
present on one side the unit packaging. In order to ensure safe lifting, the unit must be loaded on the
heavier side i.e. the one where this warning sign is not present.
DO NOT LIFT
ON THIS
SIDE
AHE00041EN 10 Alfa Laval is a trademark registered and owned by Alfa Laval Corporate AB.
Alfa Laval reserves the right to change this specification without prior notification.
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