RTA/K/EC 182÷804

Double Skin packaged Roof Top units with Scroll compressors and EC Inverter Plug-Fans

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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 units are compliant to the ErP Regulation.

Versions

RTA/K/EC - Cooling only with EC Inverter Plug-Fans
RTA/K/EC/WP - Reversible Heat Pump with Plug-Fans EC Inverter

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.
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
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