JWA 081÷211 VV/H/A

A CLASS energy efficiency aircooled liquid chillers with axial fans, (Inverter) screw compressor and shell and tube exchanger

The JWA 081÷211 VV/H/A units in A CLASS energy efficiency, with HFO-R1234ze refrigerant, are designed to provide an effective solution to highly selective system needs. The latest generation refrigerant HFO-R1234ze, with GWP<1 (Global Warming Potential), is the most environmentally sustainable refrigerant on the market, and meets the strictest international environmental regulations.
The innovative heat exchangers, traditional or Microchannel, the Screw compressors and the new design optimized in every detail ensure the reach of the highest efficiency. Furthermore, accessories as the Inverter control on one or both Screw compressors, fans and on circulating pumps (EC Inverter) are also available for getting the highest efficiency at part load. The super silenced versions, obtained through soundproofing the compressor compartment and the whole structure and wider exchangers, are particularly suitable for installations where extremely quiet operations are essential for the ideal execution of the system.
Are available as option the new EC Inverter fans with high available static pressure and efficiency.
Units are compliant to the ErP 2021 Regulation for process cooling application; for comfort cooling application they are compliant if provided with EC or ECH accessory (EC Inverter fans).

Versions

JWA - Cooling only
JWA/MC - Cooling only with MICROCHANNEL coils
JWA/SSL - Super silenced cooling only
JWA/MC/SSL - Super-silenced cooling only with MICROCHANNEL coils

Power range

79.0-211 kW
22.0-60.0 Ton

Features

Structure with supporting frame, made of galvanised sheet metal with additional protection provided by polyester powder coating.
Screw compressor with built-in oil separator, suction filter, crankcase heater, oil sight glass, thermal protection and stepless capacity steps.
Axial fans directly coupled to an electric motor with external rotor.
Condenser made of copper tube and aluminum finned coils or aluminium MICROCHANNEL coils.
Shell and tube evaporator with one independent circuit on the refrigerant side and one on the water side.
Cooling circuit shut-off valves on discharge and liquid line.
Electronic expansion valve.
Electronic high and low pressure gauges.
HFO-R1234ze 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 0 °C. It also allows to reduce the sound level especially at night. It consists of a fans speed controller with continuous speed regulation and high and low pressure transducers on cooling circuit.
Microprocessor control and regulation system.

Accessories

Factory fitted accessories

IM Automatic circuit breakers
SL Unit silencement
DSV Double relief safety valve with changeover switch on the high pressure side for each refrigerant circuit
DSVHL Double relief safety valve with changeover switch on the high and on the low pressure side of each refrigerant circuit
CC Condensing control down to -20 °C
BT Low water temperature kit
EC EC Inverter fans
ECH EC Inverter fans with high available static pressure
HRT/S Total heat recovery in series
HRT/P Total heat recovery in parallel
TX Coil with pre-coated fins
TXB Coil with epoxy treatment
EW External water connections
SP Inertial tank
PU Single circulating pump
PUI Inverter single circulating pump
PD Double circulating pump
PDI Inverter double circulating pump
SPU Inertial tank and single circulating pump
SPUI Inertial tank and Inverter single circulating pump
SPD Inertial tank and double circulating pump
SPDI Inertial tank and Inverter double circulating pump
GS Single circulating pump gasket for glycol >30%
GD Double circulating pump gaskets for glycol >30%
FE Antifreeze heater for evaporator
FX Antifreeze heater for evaporator and pipes
FQ Antifreeze heater on evaporator/tank and pipes
FZ Antifreeze heater for evaporator, single pump and pipes
FH Antifreeze heater for evaporator, double pump and pipes
FU Antifreeze heater for evaporator/tank, single pump and pipes
FD Antifreeze heater for evaporator/tank, double pump and pipes
IQ Inverter on one compressor
SS Soft start
WM Web Monitoring - Wireless remote monitoring (GPRS/EDGE/4G/TCP-IP)
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
IAV Remote set-point, 0-10V signal
IAA Remote set-point, 4-20mA signal
IAS Remote signal for second set-point activation
IDL Demand limit from digital input
CP Potential free contacts
MN High and low pressure gauges

Loose accessories

CR Remote control panel
RP Coils protection metallic guards
FP Coils protection metallic guards with filter
AG Rubber shock absorbers
AM Spring shock absorbers
FL Flow switch

Technical data

			081	101	131	171	211
Cooling STD version	Cooling capacity (1)	kW	78,7	99,0	129	165	211
	Absorbed power (1)	kW	23,6	30,8	39,0	48,9	66,7
	EER (1)		3,33	3,21	3,31	3,37	3,16
Cooling STD version (EN14511)	Cooling capacity (1)	kW	78,8	98,9	129	164	211
	Absorbed power (1)	kW	23,4	31,0	39,3	49,6	67,3
	EER (1)		3,37	3,19	3,28	3,31	3,14
	SEER (2)		4,15	4,02	3,97	4,15	4,07
	Energy Efficiency (2)	%	163	158	156	163	160
	SEER with EC or ECH accessory (2)		4,73	4,53	4,53	4,63	4,53
	Energy Efficiency with EC or ECH accessory (2)	%	186	178	178	182	178
Cooling MC version	Cooling capacity (1)	kW	78,7	99,0	129	165	211
	Absorbed power (1)	kW	23,2	30,3	38,4	48,2	66,0
	EER (1)		3,39	3,27	3,36	3,42	3,20
Cooling MC version (EN14511)	Cooling capacity (1)	kW	78,8	98,9	129	164	211
	Absorbed power (1)	kW	23,0	30,5	38,7	48,9	66,6
	EER (1)		3,43	3,24	3,33	3,35	3,17
	SEER (2)		4,16	4,03	3,97	4,15	4,07
	Energy Efficiency (2)	%	163	158	156	163	160
	SEER with EC or ECH accessory (2)		4,74	4,54	4,54	4,64	4,54
	Energy Efficiency with EC or ECH accessory (2)	%	187	179	179	183	179
Compressor	Quantity	n°	1	1	1	1	1
	Refrigerant circuits	n°	1	1	1	1	1
	Capacity steps	n°	Stepless	Stepless	Stepless	Stepless	Stepless
Evaporator	Water flow	l/s	3,76	4,73	6,16	7,88	10,08
	Pressure drops	kPa	21	20	23	44	31
	Water connections	"G	2 1/2"	2 1/2"	2 1/2"	2 1/2"	2 1/2"
Electrical characteristics	Power supply	V/Ph/Hz	400/3/50	400/3/50	400/3/50	400/3/50	400/3/50
	Max. running current	A	101	100	133	152	214
	Max. starting current	A	180	190	279	328	435
Unit with tank and pump	Pump available static pressure	kPa	140	200	180	150	130
	Tank water volume	l	660	660	660	660	660
	Water connections	"G	2 1/2"	2 1/2"	2 1/2"	2 1/2"	2 1/2"
ECH fan available static pressure	STD versions	Pa	110	110	110	110	110
	SSL versions	Pa	110	110	110	110	110
	MC versions	Pa	110	110	110	110	110
	MC/SSL versions	Pa	110	110	110	110	110
Sound pressure	STD version (3)	dB(A)	74	74	75	75	76
	With SL accessory (3)	dB(A)	71	71	72	72	73
	SSL version (3)	dB(A)	66	66	67	68	69
Weights	Transport weight (4)	kg	1361	1465	2005	2073	2367
Weights	Operating weight (4)	kg	1380	1490	2040	2120	2420

Dimensions

			081	101	131	171	211
L	STD-SSL-MC-MC/SSL	mm	3550	3550	4700	4700	4700
W	STD-SSL-MC-MC/SSL	mm	1100	1100	1100	1100	1100
H	STD-SSL-MC-MC/SSL	mm	2200	2200	2200	2200	2200

Notes

1 Chilled water from 12 to 7 °C, ambient air temperature 35 °C.
2 Seasonal energy efficiency of cooling at low temperature. According to EU Regulation n. 2016/2281.
3 Sound pressure level measured in free field conditions at 1 m from the unit. According to ISO 3744.
4 Unit without tank and pump.
N.B. (1) Weights of SSL versions are specified on technical brochure.
N.B. (2) Data of MC versions are specified on technical brochure.