TWA/EP 172÷542.1 S/K/P

High efficiency air cooled 4-Pipe multifunctional units with axial fans, Scroll compressors and plate exchangers

_icona_clint_solo_raffreddamento_2024.psd

_icona_clint_solo_riscaldamento_2024.psd

_icona_clint_solo_raffreddamento-riscaldamento_2024.psd

_icona_clint_compressore_scroll_2024.psd

Application: Comfort
Source: Air
Product Type: Multifunctional
Refrigerant: R410A, R452B, R454B
Fan: Axial, EC axial
Compressor: Scroll
Heat Exchanger: Plate

ENERGYPOWER is the range of high efficiency multifunctional units for 4-Pipe systems.
The units TWA/EP 172÷542.1 S/K/P feature R410A refrigerant and Scroll compressors activated in series based on the requested thermal load, to reach high EER/COP/TER and SEER/SCOP energy values. The units are characterized by double cooling circuit. Thanks to the advanced control system, the units can simultaneously fulfill the heating, cooling and domestic hot water request of the building. The unit can manage the opposed thermal loads at the same time and reach the highest possible efficiency.
Are available as option the EC Inverter axial fans and the new EC Inverter fans with high available static pressure and efficiency.

The units are designed for medium temperature hot water production (up to 55°C).
The models 604-P÷1404-P are compliant to ErP Regulations. The models 1604-P÷2004-P are compliant to ErP 2021 Regulations for comfort cooling application if provided with EC or ECH accessory (EC Inverter fans).
On request, units can be supplied with R452B or R454B refrigerant.

Versions

TWA/EP - Multifunctional unit
TWA/EP/SSL - Super silenced multifunctional unit

Power range

152-502 kW
43.0-143 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.
Copper tube and aluminum finned coils with hydrophilic treatment.
Condenser 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. On the units it is always installed an antifreeze heater.
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. On the units it is always installed an antifreeze heater.
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 in cooling mode. 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.
Functioning in heating mode with outside air temperature down to -15 °C.
Microprocessor control and regulation system.

Accessories

Factory fitted accessories

IM Automatic circuit breakers
RE Adjustable minimum/maximum voltage and phase control relay
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
PSC Single circulating pump cooling side
PSIC Inverter single circulating pump cooling side
PDC Double circulating pump cooling side
PDIC Inverter double circulating pump cooling side
PSH Single circulating pump heating side
PSIH Inverter single circulating pump heating side
PDH Double circulating pump heating side
PDIH Inverter double circulating pump heating side
PSC+PSH Single circulating pump cooling side + heating side
PSIC+PSIH Inverter single circulating pump cooling side + heating side
PDC+PDH Double circulating pump cooling side + heating side
PDIC+PDIH Inverter double circulating pump cooling side + heating side
GS Single circulating pump gasket for glycol >30%
GD Double circulating pump gaskets for glycol >30%
GH Single circulating pump cooling side + heating side gaskets for glycol > 30%
GY Double circulating pump cooling side + heating side gaskets for glycol > 30%
FNC Antifreeze heater for pipes cooling side
FGC Antifreeze heater for single pump and pipes cooling side
FMC Antifreeze heater for double pump and pipes cooling side
FNH Antifreeze heater for pipes heating side
FGH Antifreeze heater for single pump and pipes heating side
FMH Antifreeze heater for double pump and pipes heating side
SS Soft start
TS Touch Screen Interface
WM Web Monitoring - Wireless remote monitoring (4G)
IS Modbus RTU protocol, RS485 serial interface
IST Modbus TCP/IP protocol, Ethernet port
ISBT BACnet IP protocol, Ethernet port
ISB1 BACnet MSTP protocol, RS485 serial interface, BTL certified
ISBT1 BACnet IP protocol, Ethernet port, BTL certified
ISS SNMP protocol, Ethernet port
IAA Remote set-point, 4-20mA signal
IAS Remote signal for second set-point activation
IAV Remote set-point, 0-10V signal
IDL Demand limit from digital input
CP Potential free contacts
GDS Leak detector
MN High and low pressure gauges

Loose accessories

CR Remote control panel
RP Coils protection metallic guards
AG Rubber shock absorbers
AG5 Rubber shock absorbers unit with pump on cooling or heating side only
AG6 Rubber shock absorbers unit with pump both on cooling and heating side
AM Spring shock absorbers
AM5 Spring shock absorbers unit with pump on cooling or heating side only
AM6 Spring shock absorbers unit with pump both on cooling and heating side

Technical data

			172	212	222	242	272	302	342.1	392.1	402.1	492.1	542.1
Cooling only	Cooling capacity (1)	kW	152	175	194	219	237	271	304	347	392	463	502
	Absorbed power (1)	kW	54,9	66,7	75,0	84,3	94,4	102	114	133	144	171	184
	EER (1)		2,77	2,63	2,59	2,60	2,51	2,67	2,66	2,61	2,73	2,71	2,73
Cooling only (EN14511)	Cooling capacity (1)	kW	152	175	194	219	237	271	304	347	392	463	502
	EER (1)		2,74	2,60	2,56	2,57	2,49	2,65	2,64	2,59	2,71	2,69	2,70
	SEER (2)		4,14	4,22	4,18	4,17	4,22	4,19	4,16	4,19	4,26	4,39	4,42
	Energy Efficiency (2)	%	163	166	164	164	166	165	163	165	167	173	174
Heating only	Heating capacity (3)	kW	178	202	229	255	279	315	363	414	463	491	562
	Absorbed power (3)	kW	54,5	62,4	71,7	77,5	85,8	97,5	113	126	140	150	172
	COP (3)		3,27	3,24	3,20	3,29	3,25	3,23	3,20	3,29	3,30	3,28	3,28
Heating only (EN14511)	Heating capacity (3)	kW	178	202	229	255	279	315	363	414	464	491	563
	COP (3)		3,24	3,22	3,17	3,26	3,23	3,21	3,18	3,26	3,26	3,25	3,24
	SCOP (4)		3,37	3,36	3,65	3,58	3,43	3,63	3,39	3,26	3,43	3,45	3,49
	Energy Efficiency (5)	%	132	131	143	140	134	142	133	127	134	135	137
Cooling + Heating	Cooling capacity (5)	kW	156	185	208	235	256	286	320	365	406	496	538
	Heating capacity (5)	kW	204	242	274	306	336	378	425	478	534	636	695
	Absorbed power (5)	kW	48,0	56,5	65,9	71,5	80,2	92,4	105	113	128	140	157
	TER (5)		7,49	7,55	7,32	7,57	7,38	7,18	7,09	7,44	7,34	8,06	7,85
Cooling + Heating (EN14511)	Cooling capacity (5)	kW	156	185	208	235	256	286	320	365	406	496	538
	Heating capacity (5)	kW	204	242	274	306	336	378	425	478	534	636	695
	TER (5)		7,49	7,55	7,32	7,57	7,38	7,18	7,09	7,44	7,34	8,06	7,85
Compressor	Quantity	n°	4	4	4	4	4	4	4	4	4	4	4
	Refrigerant circuits	n°	2	2	2	2	2	2	2	2	2	2	2
	Capacity steps	n°	4	4	4	4	4	4	4	4	4	4	4
Evaporator - cooling side	Water flow	l/s	7,24	8,34	9,25	10,44	11,29	12,92	14,49	16,54	18,68	22,07	23,93
	Pressure drops	kPa	25	23	28	23	19	25	29	30	35	32	38
	Water connections	DN	100	100	100	100	100	100	100	100	125	125	150
Condenser - heating side	Water flow	l/s	8,61	9,78	11,08	12,34	13,50	15,24	17,56	20,03	22,40	23,76	27,19
	Pressure drops	kPa	22	21	25	30	23	28	34	40	48	35	45
	Water connections	DN	100	100	100	100	100	100	100	100	125	125	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
	Max. running current	A	135	154	173	189	204	227	258	300	334	372	418
	Max. starting current	A	302	342	361	402	417	463	493	613	647	704	751
STD version with SL accessory	Fan	n°	4	4	4	4	4	4	6	8	8	8	10
STD version with SL accessory	Air flow	m³/s	22,7	22,9	21,9	21,9	21,9	24,2	33,3	45,7	43,7	43,8	54,5
Unit with pump - cooling side	Pump nominal power	kW	3,0	3,0	3,0	3,0	3,0	4,0	4,0	5,5	5,5	5,5	7,5
	Pump available static pressure	kPa	190	185	175	165	160	150	140	185	165	140	175
	Expansion vessel	l	18	18	18	18	18	18	18	18	18	18	18
	Water connections	DN	100	100	100	100	100	100	100	100	125	125	150
Unit with pump - heating side	Pump nominal power	kW	3,0	3,0	3,0	3,0	3,0	4,0	4,0	5,5	5,5	5,5	7,5
	Pump available static pressure	kPa	180	170	160	145	135	140	120	160	135	125	160
	Expansion vessel	l	18	18	18	18	18	18	18	18	18	18	18
	Water connections	DN	100	100	100	100	100	100	100	100	125	125	150
Sound pressure	STD version (6)	dB(A)	69	70	70	71	71	72	74	73	74	75	76
	With SL accessory (6)	dB(A)	66	67	68	68	68	69	71	71	71	72	73
	SSL version (6)	dB(A)	63	64	65	64	64	66	66	67	67	69	70
Weight STD versions	Transport weight	kg	2260	2285	2405	2445	2475	3245	3480	4410	4590	4615	5290
Weight STD versions	Operating weight	kg	2300	2330	2450	2500	2530	3310	3545	4490	4670	4725	5400

Dimensions

			172	212	222	242	272	302	342.1	392.1	402.1	492.1	542.1
L	STD	mm	3350	3350	3350	3350	3350	5000	5000	6200	6200	6200	7200
L	SSL	mm	3350	3350	3350	5000	5000	5000	6200	6200	7200	7200	7200
W	STD	mm	2200	2200	2200	2200	2200	2200	2200	2200	2200	2200	2200
W	SSL	mm	2200	2200	2200	2200	2200	2200	2200	2200	2200	2200	2200
H	STD	mm	2360	2360	2360	2360	2360	2360	2360	2360	2360	2360	2360
H	SSL	mm	2360	2360	2360	2360	2360	2360	2360	2360	2360	2360	2360

Notes

1 Acqua refrigerata da 12 a 7 °C. temperatura aria esterna 35 °C.
2 Seasonal energy efficiency of cooling at low temperature. According to EU Regulation n. 2016/2281.
3 Acqua riscaldata da 40 a 45 °C. temperatura aria esterna 7 °C b.s./6 °C b.u.
4 Seasonal energy efficiency of heating at low temperature with average climatic conditions. According to EU Regulation n. 813/2013.
5 Acqua refrigerata a 7 °C. alla portata d'acqua nominale; acqua riscaldata a 45 °C. alla portata d'acqua nominale.
6 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.

Documents