ULTI+ R290 ADIA / New!

Air Handling Heat Pump Adiabatic Hybrid Solution

Fully compliant with the ErP 2021 directive, the ULTI+ R290 ADIA is a single-flow heat pump with adiabatic cooling designed for ventilation, heating, and air conditioning of large volumes, including medium and large commercial stores and warehouses. This stand-alone unit enables compressor energy savings in summer by giving precedence to the use of an adiabatic cooling module, which relies solely on the evaporative cooling effect of water, whenever climatic conditions allow.
Depending on the geographic location of the installation site, the reduction in summer electricity consumption can be substantial.

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 ADIA 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: 13 000 - 38 000 m3 /h

Cooling capacity range: 60 - 171 kW

Description

The ULTI+ R290 ADIA is an evolution of ETT’s latest generation rooftop range. Developed from the ULTI+ R290 series, this unit is the subject of a pending patent application. It combines quality materials, , energy savings, acoustic performance, regulation and next-generation connected components, to allowing the units to operate optimally at all times. The combination of thermodynamic and direct adiabatic technologies means that energy consumption is kept to a minimum, while ensuring that indoor comfort requirements are met at all times, whatever the climatic conditions outside.

Thanks to its full aluminium structure (frame & casing) that ensures an excellent corrosion protection, this air conditioning and heating system is covered by a 20-year guarantee against corrosion (frame and 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 ADIA 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 (Low GWP: 0.02)
  • Patented solution
  • Energy gain of 60% to 71%

Product options

Frame– Casing

  • Double aluminium skin on inner compartment
  • Motorised external supply damper, except for downward supply (2006/42/EC Directive)

Air handling

  • Actuating smoke detector with battery back-up
  • Analogue air flow controller (AFC) with auto-adjustment of supply fans flow rate
  • Pressure gauge 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

Adiabatics

  • Water meter
  • Hydraulic services in the machine base
  • Hydraulic connections on the front side
  • Inspection window and ceiling light in the adiabatic compartment with timer switch

Thermodynamics

  • Cooling-only operation (non-reversible unit)
  • Compressor MAP monitoring
  • Electrofin protection on thermodynamic coils
  • HP and LP pressure gauges

Preheating

  • Recovery hot water coil with analogue frost protection thermostat (services on the side opposite the technical compartment)
  • Modulating 3-way valve for hot water recovery coil
  • Shut-off valve on the supply + ‘TA’ regulating valve on the return for hot water recovery coil

Electrics

  • Totalising electrical energy metering in compliance with French RT 2012
  • Aluminium/copper terminal block (mandatory for aluminium supply cables)
  • 230V / 16 A single-phase PC socket in the technical compartment (separate power supply to be provided by the installer)
  • 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
  • 200, 400 or 600mm aluminium feet

Control

  • Year-round operation (compressor enabled for air conditioning with external temperature < +15°C)
  • Comfort mode control function (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 (3 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