CIAT OPERA User Manual
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OPERA
HEAT PUMPS - AIR CONDITIONING - REFRIGERATION - AIR HANDLING - HEAT EXCHANGE - NA 15.689 A
Drycoolers
Air-cooled condensers
The OPERA range, available in drycooler or air-cooled condenser versions, is particularly suited to service sector, industrial
and healthcare applications.
Drycoolers in the OPERA range are mainly designed for
cooling water or glycol/water mix for:
n Condensers for water chillers,
n Generators,
n Free cooling,
n Processes and machines (presses, compressors, etc.).
Air-cooled condensers in the OPERA range are mainly
designed for the condensation of refrigerants for water
chillers, as a "split system".
These devices are designed to be installed outdoors.
OPERA is a large modular range, which offers:
n 3 casing lengths (S, M or L module), allowing either the
dimensions, the capacity or the power consumption to be
optimised.
n A range of sizes, from 1 to 14 fans.
n 2 impeller diameters, 800 or 910 mm.
n Several rotation speeds, from 330 to 1 000 rpm.
n Several configurations: horizontal or vertical unit with forced or
induced draught for high temperatures.
Various combinations of these elements, as well as the choice
of a number of options, allow us to provide devices that are
adapted to a lange range of applications and environments.
Use
Range
Capacity: up to 1100 kW
MORE
n
More efficient
n
More flexible
n
More intelligent
for
LESS
n
Less energy
n
Less time
n
Less noise
134a
407C
410A 404A
Water
misting
Free cooling
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heat pumps - aIR CONDItIONING - ReFRIGeRatION - aIR haNDLING - heat eXChaNGe - Na 15.689 a
Drycoolers
Air-cooled condensers
OPERA
Coil
Copper tubing and manifolds, high-performance aluminium fins, resistant to fouling.
Anti-shear system for tube bundles.
Pipings for drycooler: ISO PN16 type 02A rotating flanges in line with NFEN1092 in 304L stainless steel (1 or 2 input(s)/
outputs(s) depending on the flow rate) – The tubes are sealed with plastic caps to protect the bundle.
Tubes for condenser: copper (1 input/output per refrigerating circuit for units with 1 fan line, 2 inputs/outputs for units with 2 fan
lines). Delivered pressurised with nitrogen.
Fan motor assemblies
Profiles collars with galvanised steel with polyester powder coating on the internal and external surfaces.
Aluminium and polypropylene impellers.
Class F motor - IP54 - 3PH400V +/-10% 50Hz+/-2% - Standard connection to the motor terminal boxes
Black protective grille compliant with standard BS ISO 12499.
Individual partitioning.
The motors are also available in a 60 Hz version or in other voltages.
Casing
Galvanised steel with polyester powder coating on the internal and external surfaces. Assembly using stainless rivets and
LANTHANUM nuts and bolts for the feet.
Feet
Galvanised steel with polyester powder coating on the internal and external surfaces.
Protective enclosures on the elbows and manifolds
Excellent resistance to corrosion
The casing boasts category C3 protection against corrosion,
in line with ISO standard 12944-2 – colour RAL 7035 (light grey)
DescRiption
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Each device is tested:
n The coil sealing is subjected to an underwater airtightness
test.
n For devices with the terminal box or electrical cabinet option:
rotation tests, dielectric tests, current measurement.
The OPERA range complies with the following European
directives:
n Machinery Directive 2006/42/EC,
n EMC Directive 2004/108/EC,
n Pressure Equipment Directive (PED) 97/23 EC.
Designation (example)
OPERA DLN 9124-2 SHI 690A
Rotation speed
Draught (I = Induced, F = Forced)
Position (H = Horizontal, V = Vertical)
Coil type (S = Single, D = Double, T = Twin, Z = Drainable)
Number of fan lines (1 or 2)
Number of coil rows
Number of fans
Impeller diameter (8 = 800, 9 = 900 mm)
Module size (S = Short, M = Medium, L = Long)
D = Drycooler C = Condenser
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OPERA
HEAT PUMPS - AIR CONDITIONING - REFRIGERATION - AIR HANDLING - HEAT EXCHANGE - NA 15.689 A
Drycoolers
Air-cooled condensers
options foR each application
Options Description/Advantages DRYCOOLER CONDENSER
Protection adapted
for the environment
Pre-coated aluminium ns
Improves the resistance of the blades to corrosion.
For low corrosion environments.
● ●
High efciency coating on the
nned bundle:
ALUCOAT®507 or HERESITE
Improves the resistance of the blades to corrosion.
For corrosive environments.
● ●
Stainless steel tube bundle
For corrosive uids.
●
Corrosiveness resistance
category C5M
Casing and fan motor assemblies for corrosive environments.
● ●
ATEX II 2G/3G
For explosive atmospheres.
● ●
Quick, simple installation
Terminal box
Connection to the terminals of each motor on the front panel
of unit.
● ●
Protection cabinet
Protected by a thermal-magnetic circuit breaker on each
motor.
●
Control cabinet with
AeroCONNECT
Protection for motors and stage regulation provided by an
electronic board according to temperature or pressure.
● ●
Control cabinet with stages on
terminals
Motor protection and stages controlled by the customer
control.
●
Maintenance switch
For stopping individual motors.
● ●
Companion anges
In stainless steel, with gaskets and bolts.
●
Raised feet
To ensure a good ow of air depending on how the units are
installed: against a wall, side by side, etc.
● ●
Blade protective screen
Protection against hail, impacts, etc.
For forced draught, vertical units.
● ●
Installation surface
constraints
Vertical position
For narrow terraces.
● ●
Optimised, secure
transport
Stacking of 2 identical devices
● ●
Skid for transport by container
Secure transport and easy loading/unloading.
● ●
Optimisation
of electrical consumption
and sound levels
EC motor
(with electronic switching)
Variable speed control from 0 to 100% using a 0/10V signal.
With the control cabinet via electronic board option, the
device is self-regulating
● ●
High-temperature
uid application
Forced draught
Motors in the ow of fresh air.
●
Generator application
Double circuit drycooler
Cooling of 2 water circuits (LT – HT) in series using air from
just 1 unit.
●
Expansion vessel
Max permissible pressure: 0.5 bar eff.
●
Application for water
without glycol
Drainable coil
Device located on a slope to prevent frost - drainage by gravity
●
Free cooling application Free cooling valve kit
Valves with motor and sensor, controlled by the electronic
board. Controlled according to the operation of the drycooler
or chiller.
●
Application with
adiabatic cooling AEROFRESH (water misting
into the air ow)
Size of the unit reduced by cooling of the ambient air.
Operates completely safely due to the antibacterial
treatment applied to the water.
● ●
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