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CWW-M/SZ/K 724÷1306

Watercooled liquid Chillers and Heat Pumps with Scroll compressors and shell and tube exchangers

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The CWW-M/SZ/K 724÷1306 NEXTPOWER series, with R410A refrigerant, Scroll compressors and shell and tube exchangers, is designed for medium and large industrial systems requiring high power, space-saving units and quiet operation.
These units are ideal for indoor installation reducing the overall dimensions to a minimum while at the same time making installation and maintenance operations easier.
High reliability is the key plus of NEXTPOWER, thanks to the use of components built in large series and the management of several compressors allowing an increased compressor life span and the reduction of machine stopping risks: a faulty compressor will not compromise the functioning of the unit, that will continue to work with decreased power levels.
NEXTPOWER obtains high energy yield with elevated ESEER values; thanks to the high partialization and the intelligent control module, it doesn't require inertial storage tank.
 
The units feature 460V power supply and 60Hz frequency.

Versioni

  • CWW-M/SZ/K - Cooling only
  • CWW-M/SZ/K/WP - Reversible Heat Pump

Power range

  • 234-537 kW
  • 67,0-153 Ton

Caratteristiche

  • Structure with supporting frame, made of galvanised sheet metal with additional protection provided by polyester powder coating.
  • Scroll compressors with oil sight glass, internal overheat protection and crankcase heater.
  • Shell and tube type condenser, with easily removable cast iron heads to enable access for maintenance operations. Each cooling circuit is supplied with an independent condenser. Water connections for cooling tower and Dry-Cooler operation; on request for well water.
  • Shell and tube type evaporator with two independent circuits on the refrigerant side and one on the water side.
  • Electronic expansion valve.
  • R410A refrigerant.
  • Electrical board includes: main switch with door safety interlock, protection modules and overload protection for compressors.
  • Microprocessor control and regulation system.

Accessori montati in fabbrica

  • SL Silenziamento unità
  • BT Dispositivo per funzionamento con bassa temperatura dell'acqua
  • HR Desurriscaldatore
  • HRT Recuperatore di calore totale
  • IS Protocollo Modbus RTU, interfaccia seriale RS485

Accessori forniti separatamente

  • MN Manometri di alta e bassa pressione
  • CR Pannello comandi remoto
  • PV2 Valvola pressostatica elettronica a 2 vie
  • PV3 Valvola pressostatica elettronica a 3 vie
  • AG Antivibranti in gomma
  • FL Flussostato
724824104412061306
RaffreddamentoPotenza frigorifera (1)kW234282353440537
Potenza assorbita (1)kW52,962,179,295,9122
RiscaldamentoPotenza termica (2)kW301352453545675
Potenza assorbita (2)kW68,179,9101123155
CompressoreQuantità44466
Circuiti frigoriferi22222
Gradini di parzializzazione44466
EvaporatorePortata acqual/s11,1813,4716,8721,0225,66
Perdite di caricokPa3330363443
Attacchi idrauliciDN150150150150150
CondensatorePortata acqual/s13,7116,4420,6425,6131,49
Perdite di caricokPa3030444350
Attacchi idrauliciDN6565658080
Caratteristiche elettricheAlimentazioneV/Ph/Hz460/3/60460/3/60460/3/60460/3/60460/3/60
Corrente max. funzionamentoA127157196235293
Corrente max. di spuntoA282343425422523
Pressione sonoraVersione STD (3)dB(A)6465656666
Con accessorio SL (3)dB(A)6061616262
PesiPeso di trasportokg14841499210622592883
Peso in funzionamentokg16201630231024603180

Dimensioni

724824104412061306
LSTDmm30003000300030003300
WSTDmm800800135013501350
HSTDmm19001900190019001900

Note

  • 1 Acqua refrigerata da 12 a 7 °C, temperatura acqua al condensatore da 30 a 35 °C.
  • 2 Acqua riscaldata da 40 a 45 °C, temperatura acqua all'evaporatore da 15 a 10 °C.
  • 3 Livello medio di pressione sonora in campo libero ad 1 m dall'unità come definito dalla ISO 3744.
  • N.B. (1) I pesi della versione WP sono riportati nel quaderno tecnico.