CHA-M/Y 1202÷2003

Aircooled liquid Chillers and Heat Pumps with axial fans, Screw compressors and shell and tube exchanger

The liquid Chillers and Heat Pumps of CHA-M/Y 1202÷2002 ENERGYMAX series, with R134a refrigerant, are designed for large service sector or industrial-type ambients. They are used, in combination with terminal units, for the air conditioning of the rooms or to remove the heat developed during industrial processes.
They are equipped with axial fans, Screw compressors and shell and tube exchanger. The use of large size condensing coils, together with fans with high unit efficiency, as well as the optimization of the hydraulic and cooling circuit and the use of latest generation Screw compressors, combined with a suitable sizing of the user system, allows to obtain high efficiency during operation with remarkably reduced energy consumption.
A wide range of accessories, factory fitted or supplied separately, complete the outstanding versatility and functionality of the series.

Versions

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

Power range

240-484 kW
68.0-138 Ton

Features

Structure with supporting frame, made of galvanised sheet metal with additional protection provided by polyester powder coating.
Screw compressors with built-in oil separator, suction filter, crankcase heater, oil sight glass, thermal protection, hot gas shut off valves and capacity steps.
Axial fans directly coupled to an electric motor with external rotor.
Condenser made of copper tubes and aluminium finned coils.
Shell and tube type evaporator, with two independent circuits on the refrigerant side and one on the water side.
Electronic expansion valve.
R134a refrigerant.
Electrical board includes: main switch with door safety interlock, protection modules, overload protection for compressors and thermocontacts for fans.
Condensing control included, allows to reach up to 0 °C external air temperature.
Microprocessor control and regulation system.

Accessories

Factory fitted accessories

RZ Compressors stepless control
BT Low water temperature kit
HR Desuperheater
HRT/S Total heat recovery in series
TX Coil with pre-coated fins
FE Antifreeze heater for evaporator
II Inverter on one compressor and soft start for other compressors
ID Inverter on all compressors
SS Soft start
WM Web Monitoring - Wireless remote monitoring (GPRS/EDGE/3G/TCP-IP)
AD Air section divider
IS Modbus RTU protocol, RS485 serial interface
CP Potential free contacts

Loose accessories

MN High and low pressure gauges
CR Remote control panel
AM Spring shock absorbers
RP Coils protection metallic guards
AG Rubber shock absorbers
FL Flow switch

Technical data

			1202	1302	1502	1702	1902	2002
Cooling	Cooling capacity (1)	kW	240	276	313	368	423	484
	Absorbed power (1)	kW	85,1	100	111	131	152	183
	EER (1)		2,82	2,76	2,82	2,81	2,78	2,64
Cooling (EN14511)	Cooling capacity (1)	kW	239	275	312	366	421	482
	Absorbed power (1)	kW	86,1	101	112	133	154	185
	EER (1)		2,78	2,74	2,79	2,75	2,73	2,61
Heating	Heating capacity (2)	kW	271	302	348	403	466	541
	Absorbed power (2)	kW	88,6	99,7	112	130	149	178
	COP (2)		3,04	3,03	3,11	3,10	3,13	3,04
Heating (EN14511)	Heating capacity (2)	kW	272	303	350	405	468	544
	Absorbed power (2)	kW	91,1	102	116	135	154	184
	COP (2)		2,99	2,97	3,02	3,00	3,04	2,96
Compressor	Quantity	n°	2	2	2	2	2	2
	Refrigerant circuits	n°	2	2	2	2	2	2
	Capacity steps	n°	6	6	6	6	6	6
Evaporator	Water flow	l/s	11,47	13,19	14,95	17,58	20,21	23,12
	Pressure drops	kPa	46	47	53	67	53	60
	Water connections	DN	100	100	100	100	100	100
Electrical characteristics	Power supply	V/Ph/Hz	400/3/50	400/3/50	400/3/50	400/3/50	400/3/50	400/3/50
	Max. running current	A	212	250	278	334	363	434
	Max. starting current	A	277	371	385	444	518	611
Sound pressure	STD version (3)	dB(A)	76	76	75	77	77	77
Weights	Transport weight	kg	2475	2842	3083	3262	3500	3927
Weights	Operating weight	kg	2640	3000	3280	3450	3690	4250

Dimensions

			1202	1302	1502	1702	1902	2002
L	STD	mm	2800	2800	3900	3900	3900	3900
W	STD	mm	2200	2200	2200	2200	2200	2200
H	STD	mm	2100	2100	2100	2100	2100	2100

Notes

1 Chilled water from 12 to 7 °C, ambient air temperature 35 °C.
2 Heated water from 40 to 45 °C, ambient air temperature 7 °C d.b./6 °C w.b.
3 Sound pressure level measured in free field conditions at 1 m from the unit. According to ISO 3744.
N.B. (1) Weights of WP version are specified on technical brochure.