RTA/K/EC/ECO/REC-WH 182÷804

Double skin packaged Roof Top units with Scroll compressors, EC Inverter Plug-Fans, Economizer and Wheel Heat Recovery

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The double skin packaged Roof Top units are the ideal solution for air conditioning of wide surfaces such as shopping malls and restaurants, canteens or for industrial areas. Those units feature Inverter Scroll compressor with R410A refrigerant and EC Inverter Plug-Fans.
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.
The ECO/REC-WH 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 WHEEL HEAT RECOVERY, able to treat up to 100% of total air flow.

On request, units can be supplied with R454B refrigerant.
The units are compliant to the ErP Regulation.

Versions

RTA/K/EC/ECO/REC-WH - Cooling only with EC Inverter Plug-Fans, Economizer and Wheel Heat Recovery
RTA/K/EC/WP/ECO/REC-WH - Reversible Heat Pump with EC Inverter Plug-Fans, Economizer and Wheel 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. 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 centrifugal 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.
Electronic expansion valve.
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.
R410A refrigerant. On request R454B refrigerant.

Accessories

Factory fitted accessories

HUR Horizontal air intake, upwards air delivery, inspection door on the right
HUL Horizontal air intake, upwards air delivery, inspection door on the left
HDR Horizontal air intake, downwards air delivery, inspection door on the right
HDL Horizontal air intake, downwards air delivery, inspection door on the left
HLR Horizontal air intake, air delivery on the left, inspection door on the right
HRL Horizontal air intake, air delivery on the right, inspection door on the left
IM Automatic circuit breakers
RE Adjustable minimum/maximum voltage and phase control relay
SL Unit silencement
SNM Air delivery sensor
RFM Cooling circuit shut-off valve on discharge line
RFL Cooling circuit shut-off valve on liquid line
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
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
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
CDT Touch Screen room thermostat with unit visualization
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	98,5	113	129	145	168	198	252
Cooling	Absorbed power (1, 2)	kW	21,7	24,8	28,7	30,3	35,1	43,0	46,5	49,4	61,4	70,8	97,6
Cooling (EN14511)	SEER (3)		3,65	3,68	3,80	3,82	3,90	3,84	3,71	3,81	3,88	3,76	3,78
Cooling (EN14511)	Energy Efficiency (3)	%	143	144	149	150	153	151	145	149	152	147	148
Heating	Heating capacity (4)	kW	60,2	67,1	76,8	88,5	101	115	133	151	173	204	262
Heating	Absorbed power (4, 2)	kW	19,5	21,1	24,6	27,2	29,9	37,9	41,0	46,7	53,2	60,4	84,1
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	Air flow	m³/h	9800	12200	14900	14900	17800	20200	23300	23300	30200	36100	45400
	Available static pressure	PA	250	250	250	250	250	250	250	250	250	250	250
	Fan	N°	1	1	2	2	2	2	2	2	4	4	4
	Filter	Tipo	G4	G4	G4	G4	G4	G4	G4	G4	G4	G4	G4
Air intake section	Air flow	m³/h	9800	12200	14900	14900	17800	20200	23300	23300	30200	36100	45400
	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	89	106	130	132	144	180	200	201	257	304	336
	Air pressure drops	PA	30	31	31	31	31	30	36	36	35	35	57
	Water flow (6)	l/s	2,16	2,60	3,18	3,22	3,53	4,39	4,88	4,92	6,28	7,41	8,20
	Water pressure drops	kPa	27	28	27	28	33	28	29	29	30	31	37
	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	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	46	53	65	71	83	92	101	119	143	167	205
	Max. starting current	A	157	172	161	186	226	187	215	261	257	309	381
Sound pressure	STD version (7)	dB(A)	68	68	67	67	68	71	72	72	72	72	72
Sound pressure	With SL accessory (7)	dB(A)	65	65	64	64	65	68	69	69	69	69	69
Weights	Transport weight	kg	1715	1800	1980	2080	2110	2370	2800	2850	3370	3720	4720
Weights	Operating weight	kg	1690	1770	1950	2050	2080	2330	2760	2810	3320	3660	4650

Dimensions

			182	202	242	262	302	363	393	453	524	604	804
L	STD	mm	6820	6820	7280	7280	7280	7935	7960	7960	8160	8260	10480
W	STD	mm	2200	2200	2200	2200	2200	2200	2200	2200	2200	2200	2200
H	STD	mm	2125	2365	2365	2365	2365	2365	2365	2365	2365	2505	2505

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.