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ULTI+ R32 EX

Air handling Heat pump Rooftop

Compliant with the ErP 2021 directive, the ULTI+ R32 EX consists of the ULTI+ R32 monobloc to which an extraction module has been added in order to adjust the machine’s performance to the environment and the requirements of the application (renovation or new build). This unit is recommended for precise management of excess pressure in the building, and offers maximum optimisation of air handling. The extract unit allows the return air flow rate in the building to be adjusted in relation to the supply air flow rate, regardless of the position of the fresh air damper.

The ULTI+ R32 EX is a rooftop unit using R32, a transitional refrigerant with a GWP of 675, replacing the R410A refrigerant with a GWP of 2088.

Discover our latest generation rooftop unit featuring an almost negligible impact on global warming: ULTI+ R290 EX with a GWP of 0.02.

Contact your local sales representative

Description

The ULTI+ R32 EX belongs to the ULTIMA Green Line, a modular range of next-generation rooftops from ETT. It combines quality materials, performance, energy savings, acoustics, regulation and new-generation connected components to ensure that the units operate at optimum efficiency at all times. An unrivalled product line-up(flow rates/power)that perfectly meets the weight and space constraints of existing units to be replaced.

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+ R32 EX 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 available flow rates and power
  • R32 refrigerant
  • Extraction module
  • ERP2021

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
  • Compressors acoustic jackets

Air handling

  • Operation with all recirculated air (excluding Public Buildings)
  • All fresh air operation
  • 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 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 gravity damper
  • Defrosting damper
  • Fresh air cowl extension

Thermodynamics

  • Air-conditioning-only operation (non-reversible machine)
  • Compressor MAP monitoring
  • Vinyl protection on thermodynamic coils
  • Troubleshooting aid for detecting refrigerant leaks
  • HP and LP pressure gauges

Auxiliaries

  • Hot water recovery coil with analogue frost protection thermostat
  • Auxiliary hot water coil with analogue frost protection thermostat
  • Progressive 3-way valve for hot water coil
  • Flow shut-off valve + return TA control valve for hot water coil
  • 2-stage sequential electric heating auxiliaries + load shedding by dry contact
  • Fresh air preheating by 3-stage electric heaters.

Electrics

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

Installation

  • Adjustable aluminium connection curb
  • Aluminium connection adaptor connection curb
  • Ventilated adjustable aluminium curb
  • Ventilated aluminium adaptor curb
  • Aluminium plenum for intake and exhaust
  • Aluminium feet 200, 400 mm or 600 mm

Control

  • All-season operation (compressor enabling for air conditioning with outdoor temperature < +15°)
  • Comfort mode control function (PID setpoint temperature control)
  • Free cooling prohibited by water weight comparison
  • VFP operation (Variable Flow / Power)
  • HPE+ (High Energy Performance) operation
  • Level 1 dehumidification function (without heat recovery)
  • Level 2 dehumidification function (with heat recovery & 3-way on/off refrigeration valve)
  • Level 3 dehumidification function (with heat recovery & 3-way analogue refrigeration valve)
  • Average room temperature (4 sensors)
  • Minimum fresh air control by turret contact (2 maximum)

Communication

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

Warranty

  • Warranty extension from 6 to 10 years