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CWW-M/SZ/K 724÷1306
Watercooled liquid Chillers and Heat Pumps with Scroll compressors and shell and tube exchangers
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.
Versions
- CWW-M/SZ/K - Cooling only
- CWW-M/SZ/K/WP - Reversible Heat Pump
Power range
- 234-537 kW
- 67,0-153 Ton
Caractéristiques
- 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.
Accessoires
Accessoires montés en usine
- SL Silencieux unité
- BT Dispositif pour fonctionnement à basse température de l'eau
- HR Désurchauffeur
- HRT Récupérateur de chaleur totale
- IS Protocole Modbus RTU, interface sérielle RS485
Accessoires fournis séparément
- MN Manomètres de haute et basse pression
- CR Panneau de commande à distance
- PV2 Vanne pressostatique électronique à 2 voies
- PV3 Vanne pressostatique électronique à 3 voies
- AG Plots anti-vibrations en caoutchouc
- FL Fluxostat
Technical data
| 724 | 824 | 1044 | 1206 | 1306 | |||
| Refroidissement | Puissance frigorifique (1) | kW | 234 | 282 | 353 | 440 | 537 |
| Puissance absorbée (1) | kW | 52,9 | 62,1 | 79,2 | 95,9 | 122 | |
| Chauffage | Puissance thermique (2) | kW | 301 | 352 | 453 | 545 | 675 |
| Puissance absorbée (2) | kW | 68,1 | 79,9 | 101 | 123 | 155 | |
| Compresseur | Quantité | n° | 4 | 4 | 4 | 6 | 6 |
| Circuits frigorifiques | n° | 2 | 2 | 2 | 2 | 2 | |
| Étages de puissance | n° | 4 | 4 | 4 | 6 | 6 | |
| Évaporateur | Débit d'eau | l/s | 11,18 | 13,47 | 16,87 | 21,02 | 25,66 |
| Pertes de charge | kPa | 33 | 30 | 36 | 34 | 43 | |
| Raccords hydrauliques | DN | 150 | 150 | 150 | 150 | 150 | |
| Condenseur | Débit d'eau | l/s | 13,71 | 16,44 | 20,64 | 25,61 | 31,49 |
| Pertes de charge | kPa | 30 | 30 | 44 | 43 | 50 | |
| Raccords hydrauliques | DN | 65 | 65 | 65 | 80 | 80 | |
| Caractéristiques électriques | Alimentation | V/Ph/Hz | 460/3/60 | 460/3/60 | 460/3/60 | 460/3/60 | 460/3/60 |
| Courant max. de fonctionnement | A | 127 | 157 | 196 | 235 | 293 | |
| Courant max. de crête | A | 282 | 343 | 425 | 422 | 523 | |
| Pression sonore | Version STD (3) | dB(A) | 64 | 65 | 65 | 66 | 66 |
| Avec accessoire SL (3) | dB(A) | 60 | 61 | 61 | 62 | 62 | |
| Poids | Poids de transport | kg | 1484 | 1499 | 2106 | 2259 | 2883 |
| Poids en fonctionnement | kg | 1620 | 1630 | 2310 | 2460 | 3180 | |
Dimensions
| 724 | 824 | 1044 | 1206 | 1306 | |||
| L | STD | mm | 3000 | 3000 | 3000 | 3000 | 3300 |
| W | STD | mm | 800 | 800 | 1350 | 1350 | 1350 |
| H | STD | mm | 1900 | 1900 | 1900 | 1900 | 1900 |
Remarques
- 1 Eau glacée de 12 à 7 °C, température de l'eau dans le condenseur de 30 à 35 °C.
- 2 Eau chauffée de 40 à 45 °C, température de l'eau dans l'évaporateur de 15 à 10 °C.
- 3 Niveau moyen de pression sonore mesurée en champ libre à 1 m de l'unité comme défini de ISO 3744.
- N.B. (1) Les poids des versions WP sont rapportés dans le cahier technique.