AHE00061EN 1904
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Alfa Laval is a trademark registered and owned by Alfa Laval Corporate AB.
Alfa Laval reserves the right to change specification without prior notification.
2 Product description
2.1 General information and application
AlfaBlue Junior DG is a competitive dry cooler line that offers excellent performance, allowing easy
installation on site and an outstanding integration with other components. High efficient fan motors
combine excellent sound characteristics and low energy consumption. AlfaBlue Junior dry coolers
are often used for cooling down condenser water in air-conditioning and refrigeration installations.
In the processing industry, dry coolers are suitable for closed circuit cooling of various process
liquids.
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Suitable for all liquids that do not corrode copper.
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Capacity range: 45 up to 23
3
kW (water, EN1048).
2.2 Standard configuration
Finned coil:
Innovative coil design manufactured from 8 mm Cu tubes and aluminium turbo fins. Standard fin
spacing 2.1 mm. Liquid connections externally threaded. Each heat exchanger is leak tested with
dry air. Higher design/test pressures on request.
Model
Design pressure
Test pressure
AlfaBlue Junior DG
10 bar
15 bar
Construction:
Patented coil frame design allowing thermal expansion and offering protection against vibration.
Corrosion resistant casing material, powder coated RAL9002. Separated fan sections.
Fans:
High efficiency AC or EC fans and low power consumption. Available in two fan diameters (500
& 630 mm), different power supplies (230/50-60/1, 400/50/3, 480/60/3) and four noise levels.
Protection class IP 54 according to DIN 40050.
AC motors are fitted with integrated thermo contacts to provide reliable protection against thermal
overload (terminals in the box).
2.3 Options
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Switch on/off (SW)
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Connection box for electrical power connection (CB)
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Fan speed control 230/1 and 400/3 (FT)
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Coil options:
- Epoxy coated fins (EP)
- Seawater resistant aluminium alloy fins (SWR)
- Copper fins (CU)
- F-coat treatment (FC)
- Industrial fins (IF)
- Fin spacing 2.5 mm (other fin spacings on request)
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Vibration dampers (VD)
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End covers (CV)
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Mounting feet kit for vertical airflow
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Aluminium flanges (FL)
Summary of Contents for AlfaBlue Junior DG
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