RTA/K/EC/ECO/REC-FX 182÷804

Double Skin packaged Roof Top units with Scroll compressors, EC Inverter Plug-Fans, Economizer and Cross-flow Heat Recovery

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The double skin packaged Roof Top units of this series are the ideal solution for the air conditioning of wide surface areas for public use such as halls, shopping centres, cafeterias, restaurants and health centres, or for industrial environments such as food processing or preservation centres. Those units feature Scroll compressors with R410A refrigerant and EC Inverter Plug-Fans. The EC Inverter Plug-Fans with high energy efficiency backward blades both for intake as well as delivery are managed by an electronic control adjusting fans' rotational speed to adapt the air flow to the system capacity.
Equipped with extruded aluminium alloy sections and 50mm-thick sandwich panelling, these units are available in Cooling only and Reversible Heat Pump version.
The flat or pocket filters help to keep the air quality at a suitable level in order to guarantee appropriate hygiene standards.
The ECO/REC-FX units have an high level of modularity and adaptability to every plant-engineering need: these units feature, in addition to the basic sections, an ECONOMIZER automatically controlled both in FREE-COOLING or FREE-HEATING and a CROSS-FLOW HEAT RECOVERY.
The units are compliant to the ErP Regulation.

Versions

RTA/K/EC/ECO/REC-FX - Cooling only with EC Inverter Plug-Fans, Economizer and Cross-flow Heat Recovery
RTA/K/EC/WP/ECO/REC-FX - Reversible Heat Pump with Plug-Fans EC Inverter, Economizer and Cross-flow Heat Recovery

Power range

58.0-252 kW
17.0-72.0 Ton

Features

Structure of base perimeter made of steel sheet elements galvanised. Frame made of extruded aluminium alloy profiles connected by 3 way joints. Assembling of the base to the frame is of dual support and grants the walking on the base panels installation without sticking out screws. 50mm thick sandwich panels made of prepainted steel sheet; water proofing granted by gaskets having shape memory for perfect seal up even after repeated removals. Section connection is effected by means of assembling conic stirrups and water proofing is granted by gaskets.
Scroll compressors with oil sight glass, internal overheat protection and crankcase heater.
Condenser and evaporator with copper tube and aluminium finned coil.
Delivery & intake radial fans coupled to 3-phase motors by V belt and variable pulley.
High efficiency delivery & intake reverse blade EC INVERTER PLUG-FANS, with electronic speed control to easily adapt to the system characteristics.
R410A refrigerant.
Electrical board includes: door interlocking isolator, fuses, thermal protection relays on compressors, thermocontacts for the fans of the condensing unit and contactors for the fan motors of the air handling unit.
Microprocessor for the automatic control of the unit.

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
CT Condensing control down to 0 °C
CC Condensing control down to -20 °C
ECA EC Inverter fans on condensing section
TXC Condensing coil with pre-coated fins
TXE Evaporating coil with pre-coated fins
FT/M6 Soft bag filters efficency ePM10 70% (M6)
FT/M7 Soft bag filters efficency ePM2.5 70% (F7)
FT/M8 Soft bag filters efficency ePM1 70% (F8)
FT/R6 Rigid bag filters efficency ePM10 70% (M6)
FT/R7 Rigid bag filters efficency ePM1 50% (F7)
FT/R8 Rigid bag filters efficency ePM1 70% (F8)
FT/E Electrostatic filter
AT Constant air flow regulation control
AT/P Constant available static pressure regulation control
AT/C Control adjustment of the air flow according to the load
WS2 Hot water coil with 3-Way valve
EHG Electrical heater with step regulation
CH Enthalpic control
SQ Air quality probe
SQO Air quality probe (Co2)
SQV Air quality probe (Co2+VOC)
SSA Active sanitation systems for air and rooms
PF Differential pressure switch filters control
SB Fire sensor
SC Smoke sensor
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
RP Coils protection metallic guards
MN High and low pressure gauges

Loose accessories

CR Remote control panel
AG Rubber shock absorbers

Technical data

			182	202	242	262	302	363	393	453	524	604	804
Cooling	Cooling capacity (1)	kW	57,9	65,8	77,6	87,4	98,6	113	129	145	168	198	252
Cooling	Absorbed power (1, 2)	kW	19,4	21,8	24,6	26,2	30,8	37,8	40,4	43,3	54,6	61,5	85,1
Cooling (EN14511)	SEER (3)		3,65	3,68	3,86	3,82	3,90	3,84	3,71	3,81	3,88	3,76	3,78
Cooling (EN14511)	Energy Efficiency (3)	%	143	144	151	150	153	151	145	149	152	147	148
Heating	Heating capacity (4)	kW	60,2	67,2	76,8	88,6	101	115	133	151	173	204	262
Heating	Absorbed power (4, 2)	kW	16,8	17,9	20,2	22,8	25,2	32,2	34,0	40,0	45,7	50,4	70,5
Heating (EN14511)	SCOP (5)		3,22	3,23	3,31	3,31	3,26	3,23	3,20	3,29	3,33	3,32	3,24
Heating (EN14511)	Energy Efficiency (5)	%	126	126	129	129	127	126	125	129	130	130	127
Air treatment section (EC version)	Air flow	m³/s	2,67	3,30	4,05	4,05	4,84	5,49	6,32	6,32	8,20	9,79	12,31
	Available static pressure	Pa	250	250	250	250	250	250	250	250	250	250	250
	Filter	Tipo	G4	G4	G4	G4	G4	G4	G4	G4	G4	G4	G4
	Fan	n°	1	1	2	2	2	2	2	2	2	4	4
Air intake section (EC version)	Air flow	m³/s	2,67	3,30	4,05	4,05	4,84	5,49	6,32	6,32	8,20	9,79	12,31
	Available static pressure	Pa	100	100	100	100	100	100	100	100	100	100	100
	Fan	n°	1	1	2	2	2	2	2	2	2	4	4
Condensing section	Compressor	n°	2	2	2	2	2	3	3	3	4	4	4
	Refrigerant circuits	n°	1	1	1	1	1	1	1	1	2	2	2
	Capacity steps	n°	2	2	2	2	2	3	3	3	4	4	4
Hot water coil	Heating capacity (6)	kW	85	100	125	125	150	175	200	200	250	300	350
	Air pressure drops	Pa	30	31	31	31	31	30	36	36	35	35	57
	Water flow (6)	l/s	2,03	2,39	2,99	2,99	3,58	4,18	4,78	4,78	5,97	7,17	8,36
	Water pressure drops	kPa	45	47	48	48	49	44	51	51	53	57	45
	Water connections	"G	1"½	1"½	1"½	1"½	1"½	2"	2"	2"	2"	2 ½"	2 ½"
Electrical heater	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
	Heating capacity	kW	15	21	27	27	27	41	41	41	41	48	55
	Max absorbed current	A	22	30	39	39	39	59	59	59	59	69	79
	Steps	n°	2	2	2	2	2	4	4	4	4	4	4
Electrical characteristics (EC version)	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	55	62	74	80	100	105	118	136	162	201	240
	Max. starting current	A	166	181	170	195	243	200	232	278	276	343	427
Sound pressure (EC version)	EC version (7)	dB(A)	68	69	68	68	69	71	72	72	72	72	72
Sound pressure (EC version)	With SL accessory (7)	dB(A)	65	66	65	65	66	68	69	69	69	69	69
Weights (EC version)	Transport weight	kg	1645	1720	1910	2020	2040	2210	2640	2690	3260	3590	4390
Weights (EC version)	Operating weight	kg	1620	1695	1885	1995	2015	2185	2610	2660	3225	3555	4350

Dimensions

			182	202	242	262	302	363	393	453	524	604	804
L	EC	mm	6220	6190	6260	6260	6730	7070	7920	7920	7630	8030	10050
W	EC	mm	2200	2200	2200	2200	2200	2200	2200	2200	2200	2200	2200
H	EC	mm	2100	2340	2340	2340	2340	2340	2340	2340	2340	2510	2510

Notes

1 Evaporator inlet air temperature 27 °C d.b./19 °C w.b.; ambient air temperature 35 °C.
2 Excluded the power absorbed by fans of air treatment section.
3 Seasonal energy efficiency of cooling. According to EU Regulation n. 2016/2281.
4 Condenser inlet air temperature 20 °C, ambient air temperature 7 °C d.b./6 °C w.b.
5 Seasonal energy efficiency of heating with average climatic conditions. According to EU Regulation n. 2016/2281.
6 Inlet air temperature 20 °C, water temperature 70/60 °C.
7 Sound pressure level measured in free field conditions at 1 m from the unit. According to ISO 3744.
N.B. (1) Weights of WP versions are specified on technical brochure.