JWH 081-171 VV/H/P/A

A CLASS energy efficiency watercooled liquid Chillers with (Inverter) Screw compressor and plate exchangers

The liquid Chillers of the JWH 081-171 VV/H/P/A series, with A CLASS energy efficiency and HFO-R1234ze refrigerant, are designed to satisfy the needs of the service sector or industrial systems requiring high power.
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.
Equipped with latest generation Screw compressor and plate exchangers, these units have a series of accessories which are factory fitted or supplied separately. Designed and produced to optimize the layout of each component so as to make any necessary maintenance operations more convenient, these units have an essential and compact structure intended for indoor installation. Furthermore, accessories as the Inverter control on one compressor is also available for getting the highest efficiency at part load and a significant reduction of starting current.
Units are compliant to ErP 2021 European Regulations for comfort cooling application.

Versions

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

Power range

86.0-189 kW
25.0-54.0 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.
Condenser AISI 316 stainless steel braze welded plates type with one circuit on the refrigerant side and one on the water side.
Evaporator AISI 316 stainless steel braze welded plates type with one circuit on the refrigerant side and one on the water side, complete with water differential pressure switch.
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.
Microprocessor control and regulation system.

Accessories

Factory fitted accessories

IM Automatic circuit breakers
PV2 2-Way electronic pressostatic valve
PV3 3-Way electronic pressostatic valve
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
BT Low water temperature kit
RT Total heat recovery
FE Antifreeze heater for evaporator
FO Antifreeze heater for tank and pipes
IQ Inverter on one compressor
SS Soft start
DP Device for heat pump operation
HTW Device for high temperature hot water production.
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
IVV 0-10V signal for the management of the electronic pressostatic valve source side
MN High and low pressure gauges

Loose accessories

CR Remote control panel
SPU Inertial tank and single circulating pump
SPD Inertial tank and double circulating pump
AG Rubber shock absorbers
AG1 Rubber shock absorbers for SPU and SPD modules
AM Spring shock absorbers
AM1 Spring shock absorbers for SPU and SPD modules

Technical data

			081	101	131	171
Cooling	Cooling capacity (1)	kW	86,4	115	152	189
	Absorbed power (1)	kW	16,8	21,7	28,9	35,2
	EER (1)		5,14	5,30	5,26	5,37
Cooling (EN14511)	Cooling capacity (1)	kW	86,3	115	152	189
	Absorbed power (1)	kW	17,0	22,0	29,3	36,0
	EER (1)		5,08	5,23	5,19	5,25
	SEER (2)		5,51	5,49	5,55	5,60
	Energy Efficiency (2)	%	212	212	214	216
Compressor	Quantity	n°	1	1	1	1
	Refrigerant circuits	n°	1	1	1	1
	Capacity steps	n°	Stepless	Stepless	Stepless	Stepless
Evaporator	Water flow	l/s	4,13	5,49	7,26	9,03
	Pressure drops	kPa	13	14	13	15
	Water connections	"G	2 ½"	2 ½"	3"	3"
Condenser	Water flow	l/s	4,93	6,52	8,60	10,66
	Pressure drops	kPa	12	11	12	19
	Water connections	"G	2 ½"	2 ½"	3"	3"
Electrical characteristics	Power supply	V/Ph/Hz	400/3/50	400/3/50	400/3/50	400/3/50
	Max. running current	A	93	92	122	141
	Max. starting current	A	172	183	268	317
Unit with tank and pump	Pump available static pressure	kPa	165	125	125	80
	Tank water volume	l	300	300	300	300
	Water connections	"G	2 ½"	2 ½"	3"	3"
Sound pressure	STD version (3)	dB(A)	74	75	75	76
Sound pressure	SSL version (3)	dB(A)	70	71	71	72
Weights	Transport weight (4)	kg	922	1189	1390	1506
Weights	Operating weight (4)	kg	960	1280	1490	1610

Dimensions

			081	101	131	171
L	UNIT	mm	2800	2800	2800	2800
L	UNIT + SPU/SPD	mm	3910	3910	3910	3910
W	UNIT	mm	730	730	730	730
W	UNIT + SPU/SPD	mm	730	730	730	730
H	UNIT	mm	1620	1620	1620	1620
H	UNIT + SPU/SPD	mm	1620	1620	1620	1620

Notes

1 Chilled water from 12 to 7 °C, water temperature at the condenser from 30 to 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 version are specified on technical brochure.