CHA-M/SZ/K 724-P÷1306-P

Aircooled liquid Chillers and Heat Pumps with axial fans, Scroll compressors and plate exchanger

The models of NEXTPOWER range are dedicated to conditioning of medium and wide areas. The intelligent control module optimizes functioning times and supplied power from compressors based on heat load demands in the system.
The range is equipped with R410A refrigerant and features Scroll compressors and plate exchanger.
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. The optional Air Section Divider allows to service one circuit without stopping the whole unit.
NEXTPOWER obtains high energy yield with high ESEER values and excellent silent
functioning, since the fans adjust their speed to the actual system load, providing benefits
in terms of silent operation, important especially at night.
NEXTPOWER, thanks to the high partialization and the intelligent control module, doesn't require inertial storage tank.

The units feature 460V power supply and 60Hz frequency.

Versions

CHA-M/SZ/K - Cooling only
CHA-M/SZ/K/WP - Reversible Heat Pump

Power range

218-512 kW
62,0-146 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.
Axial fans directly coupled to an electric motor with external rotor.
Condenser made of copper tubes and aluminium finned coils.
Evaporator AISI 316 stainless steel braze welded plates type with two independent circuits on the refrigerant side and one on the water side, complete with water differential pressure switch. On the Heat Pump units it is always installed an antifreeze heater.
Electronic expansion valve.
R410A refrigerant.
Electrical board includes: main switch with door safety interlock, protection modules, overload protection for compressors and thermocontacts for fans.
Microprocessor control and regulation system.

Accessoires

Accessoires montés en usine

SL Silencieux unité
CT Contrôle condensation jusqu'à 0 °C
BT Dispositif pour fonctionnement à basse température de l'eau
DS Désurchauffeur
RT Récupérateur de chaleur totale
TX Batterie avec ailettes pré-vernies
AD Paroi séparatrice section air
IS Protocole Modbus RTU, interface sérielle RS485

Accessoires fournis séparément

MN Manomètres de haute et basse pression
CR Panneau de commande à distance
RP Grilles de protection batteries
AG Plots anti-vibrations en caoutchouc

Technical data

			724-P	824-P	1044-P	1206-P	1306-P
Refroidissement	Puissance frigorifique (1)	kW	218	292	366	442	512
Refroidissement	Puissance absorbée (1)	kW	76	100	121	156	194
Chauffage	Puissance thermique (2)	kW	253	336	405	500	593
Chauffage	Puissance absorbée (2)	kW	82,2	109	129	166	191
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	10,42	13,95	17,49	21,12	24,46
	Pertes de charge	kPa	53	64	62	52	48
	Raccords hydrauliques	DN	100	100	100	100	100
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	140	170	217	255	314
	Courant max. de crête	A	296	357	445	448	543
Pression sonore	Version STD (3)	dB(A)	67	68	68	69	70
Pression sonore	Avec accessoire SL (3)	dB(A)	64	65	65	66	67
Poids	Poids de transport	kg	1543	1634	2192	2318	2510
Poids	Poids en fonctionnement	kg	1580	1675	2240	2370	2565

Dimensions

			724-P	824-P	1044-P	1206-P	1306-P
L	STD	mm	2800	2800	3900	3900	3900
W	STD	mm	2200	2200	2200	2200	2200
H	STD	mm	2100	2100	2100	2100	2100

Remarques

1 Eau glacée de 12 à 7 °C, température air extérieur 35 °C.
2 Eau chauffée de 40 à 45 °C, température de l'air extérieur 7°C b.s./6°C b.h.
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.