ULTI+ R290 / New!

Air treatment Heat pump Rooftop

Fully compliant with the ErP 2021 directive, the ULTI+ R290 is a single-flow heat pump designed for ventilation, heating, and air conditioning of large volumes, including medium and large commercial stores and warehouses. This rooftop unit combines the latest technological developments to ensure optimised energy consumption. Its performance and ease of installation make it a modular solution that adjusts its performance to its environment (renovation or new construction).

The EU Regulation 2024/573 (also known as F-Gas III) mandates the progressive phase-out of Fluorinated Greenhouse Gases, culminating in a total ban by 2050.
Accordingly, from the following dates, the installation of new rooftop units using refrigerants with a GWP < 150 will be prohibited:
• 2027 for units ≤ 50 kW
• 2030 for units > 50 kW

To anticipate these regulatory changes, ETT has upgraded its ULTIMA Green Line rooftop range to use an ultra-low GWP refrigerant.

The ULTI+ R290 is a propane-based rooftop unit, using a natural, non-fluorinated refrigerant with an almost negligible GWP of 0.02. This makes it a future-proof technology in the air-to-air heat pump segment, as it is fully exempt from the upcoming regulatory tightening.

Performance (according to EN 14511 standard)

Flow range: 5 500 – 38 000 m3 /h

Cooling capacity range: 36 - 170 kW

SEER range: 3,98 – 5,07

SCOP range: 3,52 – 4,18

Description

Description

The ULTI+ R290 belongs to the ULTIMA Green Line, a modular range of next-generation rooftops from ETT. It combines quality materials, performance, energy savings, acoustic performance, regulation, and next-generation connected components that enable the units to operate constantly in an optimal manner by transferring technical data from the machines to an external server to allow for optimal remote regulation with myETTvision (a monitoring platform that allows you to control and optimize your installation remotely).

Manufactured using an all-aluminium structure (frame and casing) for particularly effective corrosion resistance, this air conditioning and heating system comes with a 20-year anti-corrosion guarantee (frame- casing).

This single flow rooftop heat pump is delivered ready to operate. A separate technical compartment facilitates unit control and maintenance and allows measurement and adjustment during operation.

The ULTI+ R290 is designed to provide precise regulation, adapting the rotational speeds of the power stages, for optimum, continuous energy performance throughout its years of operation.

Backed by a standard 5-year warranty, this Rooftop unit comes with the full range of ETT services: Commissioning, Audits, Service contracts etc.

Products top benefits

  • Fluid R290 / Propane (Low GWP: 0.02)
  • Eurovent certified (up to 100kW)
  • Wide range of water speeds and power
  • Safety chain guaranteeing unit neutralization in the event of a leak

Product options

Frame – Casing

  • Double skin in internal section
  • Motorised external damper on supply air, except downwards (2006/42/EC Directive)

Acoustics

  • EC Low Noise supply fans

Air handling

  • Operation with all recirculated air (excluding Public Access Buildings)
  • All fresh air operation
  • Actuating smoke detector with battery back-up
  • Analogue air flow controller (AFC) with auto-adjustment of supply fans flow rate
  • Pressure gauges for supply air filters
  • ISO Coarse 65% (G4) refillable 98mm supply filters with analogue sensor
  • ISO ePM10 50% (M5) 98mm supply filters with analogue sensor
  • Double filters ISO Coarse 65% (G4) + ISO ePM1 50% (F7) or ISO ePM1 80% (F9) (48 + 48mm) at supply with analogue sensor
  • ISO ePM1 50% (F7) 98mm supply filters with analogue sensor
  • ISO ePM1 80% (F9) 98mm supply filters with analogue sensor

Pressure relief vent

  • Cowl for pressure relief vent
  • Defrosting damper
  • Fresh air cowl extension

Thermodynamics

  • Air-conditioning operation only (non-reversible machine)
  • Compressor MAP monitoring
  • Electrofin protection on the thermodynamic coils

Auxiliaries

  • Hot water recovery coil with analogue frost protection thermostat
  • Auxiliary hot water coil with analogue frost protection thermostat
  • Modulating 3-way valve for hot water coil
  • Shut-off valve on the supply + ‘TA’ regulating valve on the return for hot water coil

Electrics

  • Totalising electrical energy metering in compliance with French RT 2012
  • Aluminium/copper connection terminal blocks (aluminium mandatory for power cables)
  • 230V / 16 A single-phase PC socket in the technical compartment (separate power supply to be provided by the installer)
  • Phase checker
  • IT earthing system compatibility
  • Cable cover for external power supply (to be fitted by the installer)

Installation

  • Adjustable connecting aluminium curb
  • Connecting adapter aluminium curb
  • Adjustable ventilated aluminium curb
  • Adapting ventilated aluminium curb
  • Aluminium plenum for return air and supply air
  • 200, 400 or 600mm aluminium feet

Control

  • Operation in year-round mode (compressor authorisation in Cooling mode with outside temp. < +15°C)
  • Control function in Comfort mode (setpoint temperatures control by PID)
  • Free Cooling banning based on specific humidity comparison
  • Flow Rate / Power Variation operation
  • HPE+ operation (High Energy Efficiency)
  • Average room temperature (4 sensors)
  • Minimum fresh air slaving using turret contacts (2 maximum)

Communication

  • Extension
  • ETT ‘Control Box’ remote touch display
  • CCAD remote display
  • Native RS485 Modbus
  • Modbus IP
  • IP BacNet

Warranty

  • Extended warranty available – Please consult us