JWH 051÷172 S/K/P

Watercooled liquid Chillers and Heat Pumps with Scroll compressors and plate exchangers

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The JWH 051÷172 S/K/P liquid Chillers and Heat Pumps, with R410A refrigerant, are designed for medium-sized domestic or industrial systems which require medium power, space-saving units and quiet operation. This range is ideal for indoor installation and, equipped with a self-contained structure, it reduces the overall dimensions to a minimum while at the same time making installation and maintenance operations easier. These units are used to remove the heat developed during industrial processes or, combined with Fan Coil units, for the air conditioning of the rooms. They can be supplied with Modbus RTU protocol through RS485 serial interface. Equipped with polyester powder plate painting structure, Scroll compressors and plate exchangers, these units have cooling and hydraulic circuits complete with everything necessary for quick installation and high energy efficiency, even in the version with tank and pump; and a series of accessories, factory fitted or supplied separately, like desuperheater and total heat recovery, rounds off the variety of equipment in this product range.
The units are compliant to the ErP Regulation.
On request, units can be supplied with R452B or R454B refrigerant.

Versions

JWH - Cooling only
JWH/WP - Reversible Heat Pump

Power range

55.0-195 kW
16.0-55.0 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.
Condenser 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.
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.
R410A refrigerant. On request R452B or R454B refrigerant.
Electrical board includes: main switch with door safety interlock, fuses, thermal protection relays for compressors, interface relay and terminals for external connections.
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
PV2 2-Way electronic pressostatic valve
PV3 3-Way electronic pressostatic valve
BT Low water temperature kit
DS Desuperheater
RT Total heat recovery
FE Antifreeze heater for evaporator
FO Antifreeze heater for tank and pipes
SS Soft start
IS Modbus RTU protocol, RS485 serial interface
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

			051	061	071	081	091	101	111	131	152	172
Cooling	Cooling capacity (1)	kW	55,4	62,5	72,1	82,5	97,2	112	130	149	170	195
	Absorbed power (1)	kW	12,8	14,3	16,6	18,7	21,8	25,7	28,5	32,8	37,7	43,7
	EER (1)		4,33	4,37	4,34	4,41	4,46	4,36	4,56	4,54	4,51	4,46
Cooling (EN14511)	Cooling capacity (1)	kW	55,0	62,1	71,6	82,0	96,7	111	129	148	169	194
	Absorbed power (1)	kW	13,6	15,3	17,6	19,9	22,9	27,3	29,9	34,3	39,3	45,6
	EER (1)		4,04	4,06	4,06	4,13	4,22	4,08	4,33	4,32	4,31	4,26
	SEER (2)		5,28	5,21	5,22	5,21	5,64	5,20	5,72	6,17	5,78	6,16
	Energy Efficiency (2)	%	203	200	201	200	218	200	221	239	223	238
Heating	Heating capacity (3)	kW	72,5	80,1	93,3	105	121	140	159	180	205	237
	Absorbed power (3)	kW	18,0	20,0	23,2	25,7	28,8	33,2	38,4	42,7	51,7	56,7
	COP		4,03	4,01	4,02	4,09	4,20	4,22	4,14	4,22	3,97	4,18
Heating (EN14511)	Heating capacity (3)	kW	72,8	80,6	93,4	105	122	141	159	180	205	237
	Absorbed power (3)	kW	18,3	20,5	23,3	26,1	29,4	33,9	38,5	42,8	51,8	56,9
	COP (3)		3,98	3,94	4,01	4,04	4,14	4,15	4,13	4,21	3,96	4,17
	SCOP (4)		4,29	4,03	4,77	5,15	5,11	5,05	5,37	5,31	4,76	4,76
	Energy Efficiency (4)	%	164	153	183	198	196	194	207	204	182	182
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
Evaporator	Water flow	l/s	2,65	2,99	3,44	3,94	4,64	5,38	6,23	7,14	8,12	9,33
	Pressure drops	kPa	54	48	49	51	44	57	53	59	49	48
	Water connections	"G	1 ¼"	1 ¼"	1 ¼"	1 ¼"	2 ½"	2 ½"	2 ½"	2 ½"	2 ½"	2 ½"
Condenser	Water flow	l/s	3,26	3,67	4,24	4,84	5,69	6,60	7,59	8,71	9,92	11,41
	Pressure drops	kPa	47	51	52	43	46	54	36	39	43	48
	Water connections	"G	1 ¼"	1 ¼"	1 ¼"	2 ½"	2 ½"	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	33	39	43	49	60	64	73	90	98	120
	Max. starting current	A	128	137	139	164	204	161	189	234	213	264
Unit with tank and pump	Pump available static pressure	kPa	100	100	90	130	115	120	105	75	110	65
	Tank water volume	l	300	300	300	300	300	300	300	300	300	300
	Water connections	"G	2 ½"	2 ½"	2 ½"	2 ½"	2 ½"	2 ½"	2 ½"	2 ½"	2 ½"	2 ½"
Sound pressure	STD version (5)	dB(A)	59	59	60	60	62	61	61	63	64	64
Sound pressure	With SL accessory (5)	dB(A)	56	56	57	57	59	58	58	60	61	61
Weights	Transport weight (6)	kg	384	393	411	423	453	622	658	681	767	803
Weights	Operating weight (6)	kg	390	400	420	435	470	640	680	705	790	830

Dimensions

			051	061	071	081	091	101	111	131	152	172
L	UNIT	mm	1200	1200	1200	1200	1200	2285	2285	2285	2285	2285
L	UNIT + SPU/SPD	mm	2310	2310	2310	2310	2310	3395	3395	3395	3395	3395
W	UNIT	mm	680	680	680	680	680	680	680	680	680	680
W	UNIT + SPU/SPD	mm	680	680	680	680	680	680	680	680	680	680
H	UNIT	mm	1520	1520	1520	1520	1520	1520	1520	1520	1520	1520
H	UNIT + SPU/SPD	mm	1520	1520	1520	1520	1520	1520	1520	1520	1520	1520

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 Heated water from 40 to 45 °C, water temperature at the evaporator from 15 to 10 °C.
4 Seasonal energy efficiency of heating at low temperature with average climatic conditions. According to EU Regulation n. 813/2013.
5 Sound pressure level measured in free field conditions at 1 m from the unit. According to ISO 3744.
6 Unit without tank and pump.
N.B. (1) Weights of WP version are specified on technical brochure.