Wall/ceiling unit coolers

1 - 226 kW


Aircooler for industrial refrigeration

Cubic design

Wide range of applications



CUBIC Vario 2
CUBIC Vario 3

Info & Downloads

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Product Documentation

Info Datasheet Operation and installation instructions


  • Cold rooms
  • Refrigerated Warehouse
  • Packaged Produce


Wall/ceiling unit coolers



  • Robust design
  • Suction fans, wide air throw
  • Large variety of types
  • Many design types

Easy to Install

  • Ceiling mounting brackets for easy installation
  • Empty tube for defrost sensor
  • Side cover with hinges and quick-release fastener
  • Schrader valve on outlet

Inspection and Cleaning

  • Hinged tray

HACCP Hygiene Certificate

  • Suitable for rooms used for food processing
  • All materials used approved for foodstuffs
  • Drip tray with edges inclined at 45° angle
  • Easy to clean

High Operational Reliability and Leak-Safety

  • Proven Güntner floating coil principle (refrigerantcarrying tubes do not make contact with the casing;increases the heat exchanger’s service life)

Technical details

Heat Exchanger

  • Aligned or staggered tube pattern
  • Special copper tubes for HFC, coolant and CO2
  • Stainless steel tubes for NH3 or steel, hot-dip galvanised
  • Surface-corrugated aluminium fins for high heat transfer


  • Corrosion-resistant aluminium alloy AlMg up to 500 mm fan diameter
  • Galvanized steel, from 710 mm fan diameter
  • Powder-coated with RAL 9003
  • Hinged side cover with hinges
  • Fans positioned at an angle (from 710 mm) improve the air throw and defrosting behaviour


  • Hinged and thermally-decoupled (condensation free)
  • Separate drip plate
  • Corrosion-resistant aluminium alloy AlMg
  • Powder-coated with RAL 9003
  • Large condensation drain with 45° incline


  • Proven quality fans
  • Standard with two speeds (for fan diameter of 500 mm)
  • Motor protection with thermocontacts
  • 230 V, 1~, 50 Hz or 60 Hz (up to construction size 450)
  • 400 V, 3~, 50 Hz or 60 Hz
  • Wired on connection socket in factory (GHF)

Product Types / Refrigerant / Capacity






Fresh-frozen fish in Croatian fish factory

Fresh-frozen fish in Croatian fish factory

Arbacommerce d.o.o. Zadar in Labin, Croatia, refrigerates and freezes sardines that were freshly caught in the waters of the Mediterranean. The modern fish processing plant processes 4,000 tons of fish annually, both in blocks and as individually frozen fish (IQF). Güntner condensers and air coolers ensure seamless cooling operations in connection with compound systems.


Project description (443 KB)

High-tech and tradition  - ZUM FRANZISKANER

High-tech and tradition - ZUM FRANZISKANER

The historical restaurant "Zum Franziskaner" uses state-of-the-art Güntner units to cool their famous beer to perfection.


Project description (1.86 MB)



Air coolers, air flow and temperature distribution in large cold stores

Air coolers, air flow and temperature distribution in large cold stores


How the air throw of air coolers is influenced by the spatial geometry and by air cooling

How the air throw of air coolers is influenced by the spatial geometry and by air cooling


Influence of heat exchanger design on dehumidification and frost formation

Influence of heat exchanger design on dehumidification and frost formation


Sensible use of energy-saving fans

Sensible use of energy-saving fans


Energy saving on the low-pressure side of a refrigerating plant

Energy saving on the low-pressure side of a refrigerating plant



subcooling and system efficiency

subcooling and system efficiency



Cubic Vario presentation @ Chillventa 2014



  • Epoxy-resin coated fins
  • Double, insulated tray
  • Core tubes made of stainless steel
  • Casing and tray made of stainless steel
  • Factory-fitted thermostatic expansion valve
  • Güntner Streamer
  • Defrost flap for quick, efficient defrosting
  • Air sock connection
  • Fan casing for 45° / 90° downblow
  • Legs

Eurovent Certification

Eurovent Certification Eurovent Certification

Which benefits do you as a customer have?

Güntner has the high standard of producing high-quality, application-oriented heat exchangers and remaining both fair and transparent. That is why we participate in a corresponding program from Eurovent. The goal of the Eurovent Certification Company is to promote fair competition and to guarantee the customers that the units on the market are inspected under the same conditions and that they are therefore easier to compare. The manufacturers’ specifications are examined by independent laboratories for this purpose. To do this, units from the respective manufacturer are selected randomly.

The HE Program (Heat Exchangers for Refrigeration) for heat exchangers of the refrigeration and air conditioning industry has existed since 2001. Güntner has participated successfully without interruptions since the implementation of the program; all of the series included in the program are certified without exception – and have been for 15 years!

The Eurovent certification of the HE Program includes DX evaporators and condensers that are designed for R404A, R134a, R507A, R407A, R407C or R407F.

The Eurovent certification program is designated for air coolers with fluids, NH3 evaporators and condensers as well as CO2 evaporators and condensers, 60 Hz units and centrifugal fan units. A certification for CO2 gas coolers and CO2 DX evaporators as an individual group of units is scheduled from 2017.

Operating certified units provides you with significant advantages that are worth real money:

  • The classification of units into energy efficiency classes is an important characteristic of the certification providing you with information on the energy consumption you can expect from the selected unit. This means the operating costs can clearly be identified.
  • The independently measured, inspected specifications give you certainty when it comes to designing the units. You can design precisely to the operating point; safety margins are not required.
  • Units are easier to compare with each other thanks to certified specifications. This results in fair competition under realistic conditions.
  • The certify-all principle guarantees that manufacturers cannot distinguish themselves through individual “top-seller” units: Complete series are certified, hence there are no loopholes for individual units.
  • The confirmed and therefore reliable technical data increase the investment security and guarantees planning security and operational reliability with regard to performance and energy efficiency of the entire system. The operating costs can clearly be calculated right from the beginning.
  • Certified units save real money: “We recommend that every operator calculates the energy consumption for a current or future construction project because of a hypothetically insufficient capacity. A few years ago, non-certified units showed insufficient capacities of up to 35 % in a serial examination. Thus, you can realistically expect a reduced output of 15 – 20 % for calculation. In comparison, there is a clearly better payback period for the certified unit, usually clearly under 2 years”, according to Peter Roth, Eurovent officer at Güntner.
  • The Eurovent certification of the selected units is an indispensable prerequisite for receiving subsidies from defined funding programmes. The certification applies to all standard units. Through its modular variability, the new Güntner product structure includes an even wider range of certified units that come into question for funding measures.

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