JWA/FC 051÷172 S/K/P

Aircooled liquid chillers free-cooling with axial fans, scroll compressors and plate exchanger

The liquid Chillers of the JWA/FC 051÷172 S/K/P series, with R410A refrigerant, offer innovative technology for both domestic as well as industrial applications requiring the production of cooled water continuously year-round.
During the cold months, in the FREE-COOLING operation mode, the return liquid of the system is cooled directly by forced convection of outdoor air through the condensing coil, thus saving energy by not operating the unit's Scroll compressors. A 3-way valve system is controlled by the electronic microprocessor controller, allowing functioning in CHILLER, FREE-COOLING or MIXED (simultaneously CHILLER and FREE-COOLING) modes.
Are available as option the new EC Inverter fans with high available static pressure and efficiency for ducted installation.
The units are compliant to the 2021 ErP Regulation for process cooling application.

On request, units can be supplied with R452B or R454B refrigerant.

Versions

JWA/FC - Cooling only

Power range

53.0-174 kW
15.0-50.0 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 coil combined with FREE-COOLING coil.
Evaporator AISI 316 stainless steel braze welded plates type with one circuit on the refrigerant side and one on the water side in 051÷131 models; with two independent circuits on the refrigerant side and one on the water side in 152÷172 models, complete with water differential pressure switch.
Electronic high and low pressure gauges.
R410A refrigerant. On request R452B or R454B refrigerant.
Electrical board includes: main switch with door safety interlock, fuses, 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

IM Automatic circuit breakers
SL Unit silencement
RFM Cooling circuit shut-off valve on discharge line
RFL Cooling circuit shut-off valve on liquid line
BT Low water temperature kit
EC EC Inverter fans
ECH EC Inverter fans with high available static pressure
TX Coil with pre-coated fins
SI Inertial tank
PS Single circulating pump
PD Double circulating pump
GS Single circulating pump gasket for glycol >30%
GD Double circulating pump gaskets for glycol >30%
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 IP protocol, Ethernet port
ISS SNMP protocol, Ethernet port
MN High and low pressure gauges

Loose accessories

CR Remote control panel
RP Coils protection metallic guards
AG Rubber shock absorbers
AM Spring shock absorbers

Technical data

			051	061	071	081	091	101	111	131	152	172
Cooling	Cooling capacity (1)	kW	52,7	59,5	68,1	76,7	85,7	99,1	114	130	151	174
	Absorbed power (1)	kW	18,1	20,3	23,3	26,1	29,3	36,8	42,2	48,4	54,4	64,9
	EER (1)		2,91	2,93	2,92	2,94	2,92	2,69	2,70	2,69	2,78	2,68
Cooling (EN14511)	Cooling capacity (1)	kW	52,0	58,8	67,3	75,9	84,9	98,2	113	129	150	172
	Absorbed power (1)	kW	18,8	21,0	24,1	26,9	30,1	37,7	43,5	49,9	55,7	66,4
	EER (1)		2,77	2,80	2,79	2,82	2,82	2,60	2,60	2,59	2,69	2,59
	SEPR (2)		5,11	5,13	5,12	5,14	5,12	5,11	5,09	5,08	5,15	5,14
Free-Cooling cycle	Air temperature (3)	°C	2,1	1,3	0,0	-2,4	-3,5	1,0	0,0	-1,1	-3,0	-4,8
Free-Cooling cycle	Absorbed power (3)	kW	2	2	2	2	2	6	6	6	8	8
Compressor	Quantity	n°	2	2	2	2	2	3	3	3	4	4
	Refrigerant circuits	n°	1	1	1	1	1	1	1	1	2	2
	Capacity steps	n°	2	2	2	2	2	3	3	3	4	4
Water circuit.	Water flow	l/s	2,72	3,07	3,52	3,96	4,43	5,09	5,88	6,70	7,78	8,93
	Pressure drops	kPa	115	105	120	100	100	100	135	145	102	106
	Water connections	"G	2"	2"	2"	2"	2"	2 ½"	2 ½"	2 ½"	2 ½"	2 ½"
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
	Max. running current	A	35	41	48	54	65	76	85	102	113	136
	Max. starting current	A	130	140	144	169	209	173	201	246	229	280
Unit with tank and pump	Pump available static pressure	kPa	120	125	100	115	100	190	145	125	150	125
	Tank water volume	l	400	400	400	400	400	400	400	400	600	600
	Water connections	"G	2 ½"	2 ½"	2 ½"	2 ½"	2 ½"	2 ½"	2 ½"	2 ½"	2 ½"	2 ½"
ECH fan available static pressure		Pa	110	110	110	105	105	60	60	60	65	65
Sound pressure	STD version (4)	dB(A)	63	63	63	63	64	65	66	66	67	67
Sound pressure	With SL accessory (4)	dB(A)	61	61	60	60	62	63	64	64	65	65
Weights	Transport weight (5)	kg	923	932	951	980	999	1308	1317	1350	1472	1510
Weights	Operating weight (5)	kg	970	980	1000	1030	1050	1390	1400	1435	1560	1600

Dimensions

			051	061	071	081	091	101	111	131	152	172
L	STD	mm	3550	3550	3550	3550	3550	4700	4700	4700	4700	4700
W	STD	mm	1100	1100	1100	1100	1100	1100	1100	1100	1100	1100
H	STD	mm	2220	2220	2220	2220	2220	2235	2235	2235	2235	2235

Notes

1 Chilled water (with ethylene glycol at 30%) from 15 to 10 °C, ambient air temperature 35 °C.
2 Seasonal energy efficiency of high temperature process cooling according to EU Regulation No. 2016/2281.
3 Ambient air temperature at which the cooling capacity indicated in point (1) is reached.
4 Sound pressure level measured in free field conditions at 1 m from the unit. According to ISO 3744.
5 Unit without tank and pump.