ULTI+ R32 ADIA EX2

Air treatment Heat pump Rooftop

In compliance with the ErP Directive 2021, the ULTI+ R290 ADIA EX2 consists of the ULTI+ R290 ADIA packaged rooftop combined with an added extraction module designed to remove heat that accumulates beneath the roof during summer.
This solution prevents the reintroduction of heat into the occupied zone, extends the operating duration of the adiabatic mode, and thus contributes to energy savings.

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.

Description

The ULTI+ R32 ADIA EX2 is an evolution of ETT’s latest-generation Rooftop range. It has been developed on the basis of the EUROVENT-certified ULTI+ R32 range, and is the subject of a patent application. It combines quality materials, , energy savings, acoustic peformance, 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 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.

This rooftop comes with a 5-year basic warranty and all ETT services: Commissioning, Audits, Service contracts etc.

Products top benefits

  • Wide range of water speeds and power available
  • Fluid R32 (Low GWP)
  • Patented solution
  • Energy gain of 60% to 71%

Product options

Frame– Casing

  • Double aluminium skin on inner compartment
  • Acoustic insulation for fresh air cowl
  • Painting
  • Vertical supply air
  • Supply air on side
  • Return air on side
  • Fresh air cowl extension
  • Cover for pressure relief vent

Air handling

  • Actuating smoke detector with battery back-up
  • Epoxy coating on supply air fans
  • 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 services on the facade
  • Inspection window and ceiling light in the adiabatic compartment with timer switch

Thermodynamics

  • Air-conditioning operation only (non-reversible machine)
  • Compressor MAP monitoring
  • Vinyl coating 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
  • Preheating of fresh air by 3-stage electric auxiliary heaters

Electrics

  • Totalising electrical energy metering in compliance with RT 2012
  • Aluminium/copper terminal block (mandatory for aluminium supply cables)
  • 230V/16 A single-phase PC socket in the technical room (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 roof curb
  • Aluminum connection adapter curb
  • Adjustable ventilated aluminium curb
  • Ventilated adapting aluminium curb
  • 200, 400 or 600mm aluminium feet

Control

  • Year-round operation (compressor enabled for air conditioning with external temperature < +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 (3 maximum)

Communication

  • myETTvision
  • Remote touch screen ETT Control Box
  • CCAD remote display
  • Native RS485 Modbus
  • Modbus IP
  • BacNet IP

Warranty

  • Extended warranty from 6 to 10 years