CHA-M/MK 252-P÷684-P

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

The liquid Chillers and Heat Pumps of CHA-M/MK 252-P÷684-P MODULAR series, with R410A refrigerant, are designed for medium and large sized service or industrial buildings. They are used, combined with terminal units, for the air conditioning of the rooms.
The MODULAR units feature a dedicated layout of the unit itself and its internal components in order to build big capacity systems through modular combination of single units.
The range is made of 4 base modules from 19 to 51 TON, featuring V design condensing coils, axial fans, single or double cooling circuit with Scroll compressors and plate exchanger.
The electric panel positioned frontally and the optimization of internal layout allow to build multi-unit modular systems of extremely compact footprint.
The multi-unit systems can be centrally controlled with master-slave logic through RS485 ModBus connection that ensure balancing of operation time among the units and backup in case of failure.

Versions

CHA-M/MK - Cooling only
CHA-M/MK/WP - Reversible Heat Pump

Power range

65,0-180 kW
19,0-51,0 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 one circuit on the refrigerant side and one on the water side in 252-P÷342-P models, with two independent circuits on the refrigerant side and one on the water side in 504-P÷684-P models, complete with water differential pressure switch.
R410A refrigerant.
Electrical board includes: main switch with door safety interlock, fuses, thermal protection relays for compressors and thermocontacts for fans.
Microprocessor control and regulation system.

Accessoires

Accessoires fournis séparément

CR Panneau de commande à distance

Technical data

			252-P	342-P	504-P	684-P
Refroidissement	Puissance frigorifique (1)	kW	65,3	90,1	131	180
	Puissance absorbée (1)	kW	22,2	30,3	44,4	60,6
	EER (1)		2,94	2,97	2,94	2,97
Refroidissement (EN14511)	Puissance frigorifique (1)	kW	64,9	89,6	130	179
	Puissance absorbée (1)	kW	22,6	30,8	45,2	61,6
	EER (1)		2,87	2,91	2,87	2,91
Chauffage	Puissance thermique (2)	kW	73,4	100	147	200
	Puissance absorbée (2)	kW	24,2	31,8	48,4	63,6
	COP (2)		3,03	3,15	3,03	3,15
Chauffage (EN14511)	Puissance thermique (2)	kW	73,9	101	148	202
	Puissance absorbée (2)	kW	24,8	32,7	49,6	65,4
	COP (2)		2,98	3,08	2,98	3,08
Compresseur	Quantité	n°	2	2	4	4
	Circuits frigorifiques	n°	1	1	2	2
	Étages de puissance	n°	2	2	4	4
Évaporateur	Débit d'eau	l/s	3,12	4,30	6,24	8,60
	Pertes de charge	kPa	43	48	43	48
	Raccords hydrauliques	"G	2"	2"	2"	2"
Caractéristiques électriques	Alimentation	V/Ph/Hz	400/3/50	400/3/50	400/3/50	400/3/50
	Courant max. de fonctionnement	A	53,5	66,6	107	133
	Courant max. de crête	A	170	235	340	470
Pression sonore	(3)	dB(A)	60	60	62	62
Poids	Poids de transport	kg	547	596	1114	1211
Poids	Poids en fonctionnement	kg	550	600	1120	1220

Dimensions

			252-P	342-P	504-P	684-P
L	STD	mm	2200	2200	2200	2200
W	STD	mm	1100	1100	2200	2200
H	STD	mm	2045	2045	2045	2045

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.