URT/EC 20÷45 S/IK

Home KTK Products Upper line - Packaged Roof Tops units SINGLE SKIN PACKAGED ROOF TOP UNITS AND EC INVERTER PLUG-FANS URT/EC 20÷45 S/IK
URT/EC 20÷45 S/IK

URT/EC 20÷45 S/IK

Single or double skin packaged roof top units with scroll Inverter compressor and EC Inverter Plug-Fan

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The single skin packaged Roof Top units of this series are the ideal solution for air conditioning of medium surfaces such as shopping malls, restaurants and canteens. These units are equipped with Scroll compressors with R410A refrigerant, and are available in Cooling only and Reversible Heat Pump version also with Free-Cooling with 2 dampers. It is equipped with EC Inverter Plug-Fans with high energy efficiency backward blades, managed by an electronic control adjusting fans' rotational speed to adapt the air flow to the system capacity. The unit can easily adapt to different engineering needs thanks to the possibility of selecting onsite the air flow direction, choosing among different positions of both intake and output air direction. For MS versions it is possible to connect an additional enthalpy wheel heat recovery module.
The units are compliant to the ErP Regulation.

Versions

  • URT/EC - Cooling only
  • URT/EC/WP - Reversible heat pump
  • URT/EC/WP/MS - Reversible heat pump with Free-Cooling section (2 dampers)

Power range

  • 19,0-42,0 kW
  • 5,4-12,0 Ton

Features

  • INVERTER Scroll compressor with oil sight glass, internal overheat protection, crankcase heater and soundproofing cover.
  • Condenser and evaporator with copper tube and aluminium finned coil.
  • Electronic expansion valve.
  • R410A refrigerant.
  • Electronic proportional device: condensation control that allows the speed of the condensing-side fans to be adjusted according to the required load, allowing the sound level of the unit to be attenuated.
  • Microprocessor for the automatic control of the unit.
  • Communication with Modbus RTU protocol through RS485 serial interface.
  • MS. Free-Cooling section with 2 dampers - Further to components of the basic version, includes two aluminium dampers with spring return servomotors (dampers with opposite movement).

Factory fitted accessories

  • DBK Double skin
  • SL Unit silencement
  • ECA EC Inverter fans on condensing section
  • TXC Condensing coil with pre-coated fins
  • TXE Evaporating coil with pre-coated fins
  • FT7 Plate filters efficency ePM1 50% (F7)
  • FT8 Plate filters efficency ePM1 65% (F8)
  • 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
  • EHG Electrical heater with step regulation
  • CH Enthalpic control
  • SQ Air quality probe
  • SQO Air quality probe (CO2)
  • SQV Air quality probe (CO2+VOC)
  • SC Smoke sensor
  • SB Fire sensor
  • PF Differential pressure switch filters control
  • 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
  • MN High and low pressure gauges
  • CS Dampers rain hood

Loose accessories

  • CR Remote control panel
  • CDT Touch screen room thermostat with unit visualization
  • RP Coils protection metallic guards
  • AG Rubber shock absorbers
  • AG3 Rubber shock absorbers for F-Module
  • AG4 Rubber shock absorbers for RWH and RWH1 modules