RTAXT/K/FA 182÷605
Double Skin packaged Roof Top units with Scroll compressors and radial fans or EC Inverter Plug-Fans for 100% external air operation
The double skin packaged Roof Top units are the ideal solution for air conditioning of wide surface areas for public use such as halls, shopping centres, cafeterias, restaurants and health centres.
Units are designed for operation with 100% of external air, to ensure maximum air renewal.
Those units feature Scroll compressors and radial fans or EC Inverter Plug-Fans. The EC Inverter Plug-Fans with high energy efficiency backward blades are managed by an electronic control adjusting fans' rotational speed to adapt the air flow to the system capacity.
The units are equipped with extruded aluminium alloy sections and 50 mm-thick sandwich panelling.
They have a high degree of modularity and adaptability to every plant-engineering need; it is also possible to add various solutions for the air treatment sections.
The filters help to keep the air quality at a suitable level in order to guarantee appropriate hygiene standards.
Versions
- RTAXT/K/FA - Cooling only with radial fans
- RTAXT/K/EC/FA - Cooling only with EC Inverter Plug-Fans
Power range
- 54.0-197 kW
- 15.0-56.0 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; 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.
- Electronic proportional device to decrease the sound level, with a continuous regulation of the fan speed. This device allows also the cooling functioning of the unit by external temperature till -5°C.
- 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
- 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
- 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
Technical data
182 | 202 | 242 | 262 | 304 | 364 | 404 | 484 | 524 | 604 | |||
Cooling | Cooling capacity (1) | kW | 53,8 | 64,2 | 77,9 | 91,1 | 104 | 118 | 132 | 148 | 171 | 197 |
Absorbed power (1)(2) | kW | 24,6 | 27,9 | 33,6 | 35,3 | 42,7 | 49,1 | 53,8 | 63,0 | 74,8 | 87,6 | |
Cooling capacity (3) | kW | 52,9 | 63,9 | 77,7 | 90,9 | 104 | 117 | 131 | 148 | 170 | 196 | |
Absorbed power (2)(3) | kW | 19,5 | 22,1 | 26,9 | 27,9 | 33,6 | 38,9 | 42,3 | 49,9 | 59,4 | 70,3 | |
Air treatment section | Air flow | m³/s | 0,90 | 1,17 | 1,53 | 1,76 | 2,08 | 2,08 | 2,22 | 2,56 | 3,00 | 3,61 |
Available static pressure | Pa | 250 | 250 | 250 | 250 | 250 | 250 | 250 | 250 | 250 | 250 | |
Fan | n° | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | |
Filter | Tipo | G4 | G4 | G4 | G4 | G4 | G4 | G4 | G4 | G4 | G4 | |
Air treatment section (EC version) | Air flow | m³/s | 0,90 | 1,17 | 1,53 | 1,76 | 2,08 | 2,08 | 2,22 | 2,56 | 3,00 | 3,61 |
Available static pressure | Pa | 250 | 250 | 250 | 250 | 250 | 250 | 250 | 250 | 250 | 250 | |
Fan | n° | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | |
Filter | Tipo | G4 | G4 | G4 | G4 | G4 | G4 | G4 | G4 | G4 | G4 | |
Condensing section | Compressor | n° | 2 | 2 | 2 | 2 | 4 | 4 | 4 | 4 | 4 | 4 |
Refrigerant circuits | n° | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | |
Capacity steps | n° | 2 | 2 | 2 | 2 | 4 | 4 | 4 | 4 | 4 | 4 | |
Fan | n° | 2 | 2 | 2 | 4 | 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 |
Max. running current | A | 43 | 49 | 59 | 67 | 85 | 93 | 106 | 115 | 117 | 146 | |
Max. starting current | A | 137 | 147 | 155 | 181 | 165 | 187 | 203 | 229 | 212 | 290 | |
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 |
Max. running current | A | 39 | 45 | 55 | 63 | 81 | 89 | 102 | 111 | 113 | 142 | |
Max. starting current | A | 133 | 143 | 151 | 177 | 161 | 183 | 199 | 225 | 208 | 286 | |
Sound pressure | STD version (4) | dB(A) | 63 | 63 | 63 | 63 | 66 | 63 | 63 | 63 | 63 | 63 |
Sound pressure (EC version) | STD version (4) | dB(A) | 62 | 62 | 62 | 62 | 65 | 62 | 62 | 62 | 62 | 62 |
Weights | Transport weight | kg | 630 | 698 | 830 | 988 | 1206 | 1226 | 1236 | 1442 | 1473 | 1675 |
Operating weight | kg | 615 | 683 | 815 | 973 | 1191 | 1206 | 1216 | 1422 | 1453 | 1655 | |
Weights (EC version) | Transport weight | kg | 595 | 663 | 795 | 953 | 1171 | 1191 | 1201 | 1407 | 1438 | 1640 |
Operating weight | kg | 580 | 648 | 780 | 938 | 1156 | 1171 | 1181 | 1387 | 1418 | 1620 |
Dimensions
182 | 202 | 242 | 262 | 304 | 364 | 404 | 484 | 524 | 604 | |||
L | STD | mm | 2060 | 2310 | 2560 | 3690 | 3690 | 3690 | 3690 | 4110 | 4210 | 5650 |
W | STD | mm | 2200 | 2200 | 2200 | 2200 | 2200 | 2200 | 2200 | 2200 | 2200 | 2200 |
H | STD | mm | 2320 | 2320 | 2320 | 2320 | 2320 | 2320 | 2320 | 2320 | 2320 | 2320 |
Notes
- 1 Evaporator inlet air temperature 46 °C d.b./29 °C w.b., ambient air temperature 46 °C.
- 2 Excluded the power absorbed by fans of air treatment section.
- 3 Evaporator inlet air temperature 35 °C d.b./27 °C w.b.; ambient air temperature 35 °C.
- 4 Sound pressure level measured in free field conditions at 1 m from the unit. According to ISO 3744.