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.

Versionen

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

Power range

218-512 kW
62,0-146 Ton

Merkmale

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.

Zubehör

Im Werk montiertes Zubehör

SL Schalldämmung der Einheit
CT Verflüssigungsregelung bis 0 °C
BT Ausführung für Betrieb mit niedriger Wassertemperatur
DS Enthitzer
RT Vollständige Wärmerückgewinnung
TX Register mit vorbeschichteten Lamellen
AD Trennwand Geräteteil Luft
IS Modbus RTU-Protokoll, serielle Schnittstelle RS485

Lose mitgeliefertes Zubehör

MN Hoch- und Niederdruckmanometer
CR Fernbedienung
RP Schutzgitter Verflüssigerregister
AG Gummi-Schwingungsdämpfer

Technical data

			724-P	824-P	1044-P	1206-P	1306-P
Kühlung	Kühlleistung (1)	kW	218	292	366	442	512
Kühlung	Leistungsaufnahme (1)	kW	76	100	121	156	194
Heizung	Heizleistung (2)	kW	253	336	405	500	593
Heizung	Leistungsaufnahme (2)	kW	82,2	109	129	166	191
Verdichter	Anzahl	n°	4	4	4	6	6
	Kältekreisläufe	n°	2	2	2	2	2
	Leistungsstufen	n°	4	4	4	6	6
Verdampfer	Wassermenge	l/s	10,42	13,95	17,49	21,12	24,46
	Druckverluste	kPa	53	64	62	52	48
	Wasseranschlüsse	DN	100	100	100	100	100
Elektrische Merkmale	Versorgungsspannung	V/Ph/Hz	460/3/60	460/3/60	460/3/60	460/3/60	460/3/60
	Max. Betriebsstrom	A	140	170	217	255	314
	Max. Anlaufstrom	A	296	357	445	448	543
Schalldruck	Version STD (3)	dB(A)	67	68	68	69	70
Schalldruck	Mit Zubehör SL (3)	dB(A)	64	65	65	66	67
Gewichte	Transportgewicht	kg	1543	1634	2192	2318	2510
Gewichte	Betriebsgewicht	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

Aufzeichnungen

1 Kaltwasser von 12 bis7 °C, Außenlufttemperatur 35 °C.
2 Warmwasser von 40 bis 45 °C, Außenlufttemperatur 7 °C T.K./6 °C F.K.
3 Durchschnittlicher Schalldruckpegel im Freifeld im Abstand von 1 m zur Einheit, gemäß ISO 3744.
N.B. (1) Die Gewichte der Version WP sind in den technischen Unterlagen aufgeführt.