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LIQUID COOLERS FND - PFND

LIQUID COOLERS FND - PFND

Product catalog summary

Overview: The document details technical specifications and customization options for advanced heat exchangers, specifically liquid coolers FND_PFND. It includes information on construction, components, testing, and optional features.

Specifications:

Finned Coils: Constructed with copper pipes and aluminum fins featuring high-efficiency pyramidal corrugation. The frame is made of galvanized steel to prevent contact with copper pipes.
External Frame: Made from galvanized steel, epoxy painted RAL9016, with high-performance fan cowls designed for minimal noise.
Fan Motors: Standard fans operate at 400V - 3F - 50Hz, with 60Hz options available. They include external rotors, IP54 protection, and high efficiency.
Declared Capacities: Tested according to ENV1048, with ambient temperature at +25°C and fluid temperature at 40°C/35°C using a water/ethylene glycol mixture.
Testing: Coils are tested with dry air and degreased, with a standard design pressure of 10 bar.

Performance Coefficients:

Temperature Coefficient (K2): Adjusts based on fluid temperature differences.
Altitude Coefficient (K3): Adjusts for altitudes from 0 to 2000 meters.
Sound Pressure Level: Provided for distances from 2 to 50 meters.

Selection and Options:

Quick Selection: Based on cooling capacity and working conditions using specified parameters.
Fan Motor Options: Include wiring configurations, speed regulators, inverters, and EC fans for efficiency and noise reduction.
Additional Options: Include safety switches, temperature probes, vertical air flow supports, anti-vibration supports, anti-hail protection, and special frame colors.

Adiabatic System: Basic spray systems are available for different unit configurations to optimize water flow and distribution.

Specifications: The document specifies standard working pressures of 2.5 BAR and 10 BAR for different systems, use of AISI piping and nozzles, and hydrophilic fins (HY) to limit corrosion. Water pH should be between 6.5 and 8.2, and hardness should not exceed 10°F for systems operating over 200 hours annually.

Procedures: Systems are designed for automatic emptying after each cycle. A three-way electrical valve is controlled by fan management, pressurizing the system when temperature or pressure limits are reached. Installation requirements for units with vertical air flow include a special oversized height kit.

Standards and Recommendations: Compatibility with local installation rules should be checked. Softened water is recommended for systems operating more than 200 hours per year to prevent excessive hardness.

System Components: Include a pump group with a maximum pressure of 10 BAR, flow regulating valve, pressure reducer, and water filter. An inverter regulates continuous water flow to minimize consumption.

Performance and Efficiency: High relative humidity or temperatures significantly lower than design temperature can reduce efficiency and increase water loss. The adiabatic system PD is designed for efficiency with minimal water flow and includes corrosion prevention features.

Additional Features: A UV disinfection system is available for water sanitization, with a display for controlling working data and UV lamp life cycle. Compatible with adiabatic systems OS and PD when equipped with an electrical panel and regulation.

Order Codes and Options: Detailed order codes for different models and configurations are provided, specifying available options for each module type.

Catalog excerpts

LIQUID COOLERS

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Liquid coolers FND_PFND

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Raffreddatori di liquido FND_PFND Advanced Heat Exchangers Heat Exchange Finned Coils Batterie di scambio termico _All finned coils of liquid coolers are produced with copper pipes and aluminium fins with high efficiency pyramidal corrugation _The frame of finned coils is produced in galvanized steel with thickness suitable to weight of heat exchanger. _All pipes are expanded on aluminium counter-endplates to avoid any contact between copper pipes and steel frame and therefore any possible pipe damage. _Tutte le batterie a pacco alettato dei raffredatori di liquido sono realizzate con tubi in...

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Liquid coolers FND_PFND Quick Selection / Selezione rapida Liquid cooler can be selected if you know cooling capacity and working conditions according La selezione del raffreddatore di liquido può essere effettuata conoscendo la potenza da to following scheme and parameters. smaltire richiesta e le condizioni di lavoro secondo lo schema e i parametri indicati di seguito. Ambient temperature coefficient K1 / Coefficiente temperatura ambiente K1 Tambient / T ambiente K1 0% ethylene glycol / K1 0% glicole etilenico K1 35% ethylene glycol / K1 35% glicole etilenico Fluid temperature / temperatura...

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Raffreddatori di liquido FND_PFND Advanced Heat Exchangers Option / Opzioni PLEASE CHECK PAGE 8 TO KNOW THE AVAILABILITY OF THE OPTIONS CODE CODICE CONSULTARE PAGINA 8 PER CONOSCERE LA DISPONIBILITÀ DELLE OPZIONI Cablaggio elettroventilatori Fans with wiring in terminal box Fans with wiring in electrical box including switches and thermal protection for each fan and general switch. Fans with wiring in electrical box including protection fuses for single fan. The EC fan control module ( code RE ) is supplied separatly, in this configuration the fans can be controlled qith one external 0-10V signal....

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Liquid coolers FND_PFND Option / Opzioni PLEASE CHECK PAGE __ TO KNOW THE AVAILABILITY OF THE OPTIONS CODE CODICE Kit supporti per flusso aria verticale Kit supports for vertical air flow The unit are standard always shipped and packed in vertical configuration with horizzontal air flow. In case of vertical air flow is necessary to add the option “SV” kit supports for vertical air flow. Is always necessary specify in the order the unit with correct air flow direction ( V = vertical air flow ; H = horizzontal air flow ) because the circuitation of the units is realized to be drainable in the specifical...

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Raffreddatori di liquido FND_PFND Advanced Heat Exchangers Adiabatic system / Sistemi adiabatici Basic spray system: assembled for V-shaped units and disassembled for FLAT vertical / horizontal units ( FN / FND – CN / CND ) Kit spray system base fornito montato sulle macchine a V e in kit di montaggio per le maccchine con flusso aria verticale o orizzontale. Nozzle dimension and quantity are selected to get the correct water flow and the best distribution on the finned block. Dimensione e numero di ugelli sono ottimizzati e calcolati per ottenere la corretta portata d’acqua e la miglior distribuzione...

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Liquid coolers FND_PFND The adiabatic system PD is supplied completely assembled and ready to be used. Il sistema adiabatico PD viene fornito completamente montato e pronto all’uso. The structure PD is integrated in the unit and constituted by a water distribution system completely openable, the plastic panels and the trays for water collection and discharge. La struttura PD è integrata nella macchina ed è composta da un sistema di distribuzione dell’acqua completamente ispezionabile, dai pannelli in materiale plastico, dalle vasche di raccolta e scarico acqua. The water distribution system is...

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Raffreddatori di liquido FND_PFND ORDER CODE CODICI DI ORDINAZIONE Advanced Heat Exchangers V Air flow direction / Direzione flusso aria V = Vertical / Verticale H = Horizontal / Orizzontale Fans connection / Collegamento ventilatori D=∆ Y= Number of poles / Numero di poli X = 4 (Ø 500mm) X = 6S (Ø 910mm) M=6 L=8 Coil type / tipo batteria Number of fans / Numero di ventole ( 4÷14 ) Diameter of fans / Diametro ventilatori 50 = Ø 500mm 80 = Ø 800mm 91 = Ø 910mm 100 = Ø 1000mm Type / Esecuzione FND = Double row fans - tubes Ø12mm Doppia fila di ventole - tubi Ø12mm PFND = Double row fans - tubes...

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Liquid coolers FND_PFND Fan number Numero ventilatori

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Raffreddatori di liquido FND_PFND Advanced Heat Exchangers Fan number Numero ventilatori

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Liquid coolers FND_PFND FND50_E_A Ø 500mm Connection IN / OUT(d) Model Numero ventilatori Notes / Note (a) Capacity calculation based on ENV1048 / Rese calcolate secondo ENV1048 (b) Nominal data / Dati nominal (c) According EN13487 / ISO 3744 / In accordo EN13487 / ISO 3744 (d) Diameter valid for CE10 version / Diametri validi per versione CE10 (e) Dimension and weight refer to the standard execution shipped in vertical position (horizzontal air flow) and don’t include any option. Contact Onda for specifical drawing and weight Dimensioni e peso sono riferiti all’esecuzione standard priva di accessori...

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Raffreddatori di liquido FND_PFND Advanced Heat Exchangers FND50_E_A Ø 500mm DIMENSIONS H = HORIZONTAL AIR FLOW / H = FLUSSO ARIA ORIZZONTALE V = VERTICAL AIR FLOW / H = FLUSSO ARIA VERTICALE Notes The dimensions of above drawing are only preliminary and must be always reconfirmed by our Tech. Dept. / Note: Le quote d’ingombro sono indicative e vanno sempre confermate dal nostro ufficio tecnico REV 1.0 del 2016

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Liquid coolers FND_PFND Fan number Numero ventilatori

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Raffreddatori di liquido FND_PFND Advanced Heat Exchangers Fan number Numero ventilatori

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Liquid coolers FND_PFND Fan number Numero ventilatori Notes / Note (a) Capacity calculation based on ENV1048 / Rese calcolate secondo ENV1048 (b) Nominal data / Dati nominal (c) According EN13487 / ISO 3744 / In accordo EN13487 / ISO 3744 (d) Diameter valid for CE10 version / Diametri validi per versione CE10 (e) Dimension and weight refer to the standard execution shipped in vertical position (horizzontal air flow) and don’t include any option. Contact Onda for specifical drawing and weight Dimensioni e peso sono riferiti all’esecuzione standard priva di accessori e opzioni e sono riferiti alla...

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LIQUID COOLERS FND - PFND

LIQUID COOLERS FND - PFND

Catalog excerpts

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