RTAXT/K 182÷804

DOUBLE SKIN PACKAGED ROOF TOP UNITS WITH SCROLL COMPRESSORS AND RADIAL FANS OR EC INVERTER PLUG-FANS.
Also available with Mixing Box section

The double skin packaged Roof Top units of the 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 radial fans or 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.

Versions

RTAXT/K - Cooling only with radial fans
RTAXT/K/MS - Cooling only with radial fans and Mixing Box
RTAXT/K/WP - Reversible Heat Pump with radial fans
RTAXT/K/WP/MS - Reversible Heat Pump with radial fans and Mixing Box
RTAXT/K/EC - Cooling only with EC Inverter Plug-Fans
RTAXT/K/EC/MS - Cooling only with EC Inverter Plug-Fans and Mixing Box
RTAXT/K/EC/WP - Reversible Heat Pump with EC Inverter Plug-Fans
RTAXT/K/EC/WP/MS - Reversible Heat Pump with EC Inverter Plug-Fans and Mixing Box

Power range

50.0-243 kW
14.0-69.0 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 radial fans coupled to 3-phase motors by V belt and variable pulley.
High efficiency delivery 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.
Electrical board with dedicated components sizing and ventilation system for unit operation at high outdoor ambient temperature.
Microprocessor for the automatic control of the unit.
Operating outdoor ambient air temperature up to 52 °C.

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
TXC Condensing coil with pre-coated fins
TXE Evaporating coil with pre-coated fins
FT/M6 Soft bag filters efficency M6
FT/M7 Soft bag filters efficency F7
FT/M8 Soft bag filters efficency F8
FT/R6 Rigid bag filters efficency M6
FT/R7 Rigid bag filters efficency F7
FT/R8 Rigid bag filters efficency F8
FS Anti-sand filter
AT Constant air flow regulation control
AT/P Constant available static pressure regulation control
EHG Electrical heater with step regulation
SQ Air quality sensor
PF Differential pressure switch filters control
IS Modbus RTU protocol, RS485 serial interface
IST Modbus TCP/IP protocol, Ethernet port
ISB BACnet MSTP protocol, RS485 serial interface
ISBT BACnet TCP/IP protocol, Ethernet port
ISL LonWorks protocol, FTT-10 serial interface
ISS SNMP protocol, Ethernet port
CP Potential free contacts
RP Coils protection metallic guards

Loose accessories

MN High and low pressure gauges
CR Remote control panel
AG Rubber shock absorbers

Complementary sections

UM Section with preparation for Humidifier
UM/EN Section Humidifier with electrodes immersed

Technical data

			182	202	242	262	304	364	404	484	524	604	804
Cooling	Cooling capacity (1)	kW	49,5	58,5	67,0	76,2	88,5	100	112	126	149	176	243
	Absorbed power (1)(2)	kW	21,4	24,2	27,7	30,6	36,4	40,7	45,0	52,4	63,1	72,9	90,2
	Cooling capacity (3)	kW	56,5	67,3	76,1	86,2	100	115	130	142	169	198	276
	Absorbed power (2)(3)	kW	18,1	22,8	26,1	28,7	34,2	37,9	42,1	48,8	52,3	68,5	72,6
Heating	Heating capacity (4)	kW	58,7	68,7	75,3	87,4	102	117	134	148	174	204	288
Heating	Absorbed power (2)(4)	kW	15,7	18,7	22,0	25,0	28,0	32,3	35,4	45,1	43,8	56,1	60,1
Air treatment section	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
	Fan	n°	1	1	1	1	1	1	1	1	1	1	1
	Filter	Tipo	G4	G4	G4	G4	G4	G4	G4	G4	G4	G4	G4
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
	Fan	n°	1	1	2	2	2	2	2	2	2	4	4
	Filter	Tipo	G4	G4	G4	G4	G4	G4	G4	G4	G4	G4	G4
Condensing section	Compressor	n°	2	2	2	2	4	4	4	4	4	4	4
	Refrigerant circuits	n°	1	1	1	1	2	2	2	2	2	2	2
	Capacity steps	n°	2	2	2	2	4	4	4	4	4	4	4
	Fan	n°	2	2	2	2	2	2	4	4	4	4	6
Hot water coil	Heating capacity (5)	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	35
	Water flow (5)	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	55
	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	48	55	63	72	81	94	10	117	131	160	218
	Max. starting current	A	142	152	158	186	161	188	206	231	227	304	392
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	44	49	56	65	74	88	3	110	124	158	215
	Max. starting current	A	138	146	151	179	154	182	199	224	220	302	389
Sound pressure	STD/MS versions (6)	dB(A)	58	58	58	59	59	59	60	60	61	61	61
Sound pressure (EC version)	STD/MS versions (6)	dB(A)	57	57	57	57	57	58	59	59	60	60	61

Dimensions

			182	202	242	262	304	364	404	484	524	604	804
L	STD	mm	2980	3080	3190	3190	3690	3770	4500	4500	5150	5300	7370
W	STD	mm	2200	2200	2200	2200	2200	2200	2200	2200	2200	2200	2200
H	STD	mm	2340	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 46 °C.
2 Excluded the power absorbed by fans of air treatment section.
3 Evaporator inlet air temperature 27 °C d.b./19 °C w.b.; ambient air temperature 35 °C.
4 Condenser inlet air temperature 20 °C, ambient air temperature 7 °C d.b./6 °C w.b.
5 Inlet air temperature 20 °C, water temperature 70/60 °C.
6 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.

Documents

Product guides _clint_XT_GPHTE_2020_w.pdf