CRE 6205÷121060

AIRCOOLED LIQUID CHILLERS WITH AXIAL FANS, SCROLL COMPRESSORS AND PLATE EXCHANGER

CRE 6205÷121060 is an extremely flexible and reliable machine: an intelligent control module optimizes functioning times and supplied power from the Scroll compressors based on heat load demands in the system. The unit, with R410A refrigerant, features high energy yield, elimination of generated power surges, elimination of inertial accumulation tanks and excellent silent functioning, since the fans adjust their speed to the actual system load, providing benefits especially during the night. The use of components built in large series, making them highly reliable, and the management of an elevated number of compressors allows increased life span and reduction of machine stopping risks: a faulty compressor will not compromise cooler functioning, which will continue to function with decreased power levels. In addition, maintenance operations are decisively reduced due to the high reliability of the machines and their components.
Units are featured as standard with an electronic proportional device that ensures efficient continuous functioning of the unit with outside air temperature down to –20 °C.

Versions

CRE - Cooling only
CRE/SSL - Super silenced cooling only

Power range

194-1.0 kW
55.0-295 Ton

Features

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.
Cooling circuit shut-off valve on liquid line in 8330÷121060 models.
Electronic expansion valve.
Electronic high and low pressure gauges.
R410A refrigerant.
Electrical board includes: main switch with door safety interlock, fuses or magnetothermic switches, thermal protection relays for compressors and thermocontacts for fans.
Condensing Control is included: electronic proportional device that ensures efficient and continuous functioning of the unit with outside air temperature down to –20 °C. It also allows to reduce the sound level especially at night. It consists of a fans speed controller with continuous speed regulation, high and low pressure transducers on cooling circuit and an electrical heater on electrical board.
Microprocessor control and regulation system.

Accessories

Factory fitted accessories

DPS Double power supply
SL Unit silencement
RFM Cooling circuit shut-off valve on discharge line
EC EC Inverter fans
ECH EC Inverter fans with high available static pressure
TX Coil with pre-coated fins
EW External water connections
PS Single circulating pump
PSI Inverter single circulating pump
PD Double circulating pump
PDI Inverter double circulating pump
SS Soft start
IS Modbus RTU protocol, RS485 serial interface
IST Modbus TCP/IP protocol, Ethernet port
ISB BACnet MSTP protocol, RS485 serial interface
ISBT BACnet TCP/IP protocol, Ethernet port
ISL LonWorks protocol, FTT-10 serial interface
ISS SNMP protocol, Ethernet port
IAV Remote set-point, 0-10 V signal
IAA Remote set-point, 4-20 mA signal
IAS Remote signal for second set-point activation
IDL Demand limit from digital input

Loose accessories

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

Technical data

			6205	6230	6255	6280	8330	8340	8375	10410	10455	12510	12560	12615	12680	12770	12860	12950	121060
Cooling	Cooling capacity (1)	kW	194	217	238	265	291	320	350	382	414	461	508	552	605	690	832	974	1039
	Absorbed power (1)	kW	62	71	73	80	93	95	104	111	134	142	156	174	194	223	271	309	344
	EER (1)		3,13	3,06	3,26	3,31	3,13	3,37	3,37	3,44	3,09	3,25	3,26	3,17	3,12	3,09	3,07	3,15	3,02
Cooling (EN14511)	Cooling capacity (1)	kW	193	216	237	264	290	319	348	381	412	459	506	550	603	688	829	971	1035
	Absorbed power (1)	kW	63	72	74	81	94	96	106	112	136	144	158	176	196	225	274	312	348
	EER (1)		3,06	3,00	3,20	3,26	3,09	3,32	3,28	3,40	3,03	3,19	3,20	3,13	3,08	3,06	3,03	3,11	2,97
	SEPR (2)		5,01	5,06	5,11	5,12	5,07	5,07	5,24	5,61	5,55	5,51	5,53	5,62	5,53	5,56	5,55	5,56	5,55
Compressor	Quantity	n°	3+3	3+3	3+3	3+3	4+4	4+4	4+4	5+5	5+5	6+6	6+6	6+6	6+6	6+6	6+6	6+6	6+6
	Refrigerant circuits	n°	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2
	Capacity steps	n°	6	6	6	6	8	8	8	8	8	10	10	10	10	10	10	10	10
Evaporator	Water flow	l/s	9,27	10,37	11,37	12,66	13,90	15,29	16,72	18,25	19,78	22,03	24,27	26,37	28,91	32,97	39,75	46,54	49,64
	Pressure drops	kPa	38	47	56	50	46	45	54	42	51	43	52	49	40	35	49	45	51
	Water connections	DN	80	80	80	80	80	80	80	80	80	80	80	80	150	150	150	150	150
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	400/3/50	400/3/50	400/3/50	400/3/50	400/3/50	400/3/50	400/3/50	400/3/50	400/3/50	400/3/50	400/3/50
	Max. running current	A	164	178	191	212	238	258	279	298	350	382	413	474	543	621	685	737	779
	Max. starting current	A	288	310	323	341	370	390	408	430	479	514	542	653	717	834	893	1001	1040
Unit with pump	Pump available static pressure	kPa	200	175	245	220	250	240	215	210	200	200	190	185	180	170	190	165	140
Unit with pump	Water connections	DN	100	100	100	100	100	100	100	100	100	100	100	150	150	150	150	150	150
Sound pressure	STD version (3)	dB(A)	70	70	70	72	72	72	73	73	72	73	75	76	76	76	76	76	77
	With SL accessory (3)	dB(A)	67	67	67	69	69	69	69	70	69	70	72	73	73	73	73	73	74
	SSL version (3)	dB(A)	64	64	64	66	65	65	67	66	66	67	69	70	70	69	70	---	---
Weights	Transport weight	kg	1654	1674	1763	1961	2199	2457	2566	2610	3179	3294	3463	3517	3682	4200	4518	4918	5044
Weights	Operating weight	kg	1670	1690	1780	1980	2220	2480	2590	2640	3210	3330	3500	3560	3730	4260	4580	5238	5354

Dimensions

			6205	6230	6255	6280	8330	8340	8375	10410	10455	12510	12560	12615	12680	12770	12860	12950	121060
L	STD	mm	2800	2800	2800	2800	4000	4000	4000	4000	5000	5000	5000	5000	5000	6200	7200	7200	7200
L	SSL	mm	2800	2800	2800	2800	4000	4000	4000	4000	5000	5000	5000	5000	6200	7200	7200	---	---
W	STD/SSL	mm	2200	2200	2200	2200	2200	2200	2200	2200	2200	2200	2200	2200	2200	2200	2200	2200	2200
H	STD/SSL	mm	2100	2100	2100	2100	2100	2100	2100	2100	2100	2100	2100	2100	2100	2100	2100	2100	2100

Notes

1 Chilled water from 18 to 13 °C, ambient air temperature 35 °C.
2 Efficienza energetica stagionale di raffreddamento di processo ad alta temperatura secondo il Regolamento UE n. 2016/2281.
3 Sound pressure level measured in free field conditions at 1 m from the unit. According to ISO 3744.
N.B. (1) Weights of SSL version are specified on technical brochure.