Alfa V 800, 910 & 1000 mm - Dry Cooler VDD / VDD60 pages

Dry Cooler VDD / VDD6
Alfa V 800, 910 & 1000 mm
Applications
Refrigeration and air conditioning applications:
– water / glycol cooling
– free cooling
Industrial applications:
– cooling of water or other different liquids
– food, power, process and general industry.
Heat exchanger
Optimized “V type” design provides large capacity with compact
size. Innovative heat exchanger design gives excellent
heat transfer with minimized refrigerant charge, thanks to the
new fins corrugation, developed by Alfa Laval, combined with
two different tube sizes 1/2” (VDD series) and 5/8” (VDD6
series). In the standard execution, heat exchanger manufactured
from copper tubes and aluminium fins with spacing
2.1 mm. Double connection provides opportunity for two
completely independent heat exchangers. Each heat
exchanger undergoes a pressure and leaking test with dry
air at 11 bar.
Fan motor
Three different fan diameters available: 800, 910 and
1000 mm with three-phase motor 400V-50Hz. The motors are
with external rotor, made in accordance with VDE 0530/12.84,
IP54. These Dry Coolers are available in five noise levels fan
motor, (S) standard, (L) low, (Q) quiet, (R) residential and the
new (T) high performance fan dry coolers VDD/VDD6 800
and 910 are available in 4 noises level fan motor, (S) standard,
(L) low, (Q) quiet and (R) residential. Dry Coolers VDD/VDD6
1000 are available in 3 noises level fan motor, (L) low, (Q) quiet
and (R) residential. New bell mouths optimize the performance
of the fan motors and minimize the noise level. Each fan
chamber is separated by internal baffle plates which enables
optimal capacity control by separate running of the fans.
Frame and casework
Casework made with galvanized steel sheets painted (corrosion
resistance class C4) with epoxy finish, RAL 9002. New
design frame provides high rigidity also for heavy applications.
New system perfectly protects the heat exchanger tubes
during transportation and operation against vibration and thermal
expansion. Support manufactured in galvanized steel.
Alfa V Dry Cooler VDD series
Code description
VDD/VDD6 Q 100 4 B
Coil size A, B, C
Couple of fans
2, 3, 4, 5, 6, 7, 8
Fan diameters
80 = 800 mm,
90 = 910 mm
100 = 1000 mm
Noise level
T= high performance,
S = standard,
L = low, Q = quiet,
R = residential
Dry Cooler V-type
120
180
130
1285
1640
1500
0 400 800 1200 1600 2000
VDD 800
VDD 910
VDD 1000
Series
Dry Cooler VDD (performance range)
Performance (kW)