DGN
DGN



DGN

Ceiling air cooler

7 - 80 kW

DHN1

Aircooler for industrial refrigeration

Large heat-exchanging surface

Many design types

DHN2

 

Info & Downloads

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Product Documentation

Info Datasheet Operation and installation instructions

Application

  • Cold rooms
  • Refrigerated Warehouse
  • Sensitive Produce
  • Fruit and Vegetables
  • Meat, Fish, Poultry
GOST

DGN

Ceiling air cooler

Features

Advantages

  • Slimline design
  • Even air distribution
  • Low draught air level
  • Aligned tube pattern, large heat-exchanging surface
  • Many design types

Easy to Install

  • Mounted on pallet in installation position
  • Ceiling mounting brackets for easy installation
  • Empty tube for defrost sensor
  • Easy-to-remove side cover
  • Schrader valve on outlet
  • Fans wired on connection socket (optional)

Inspection and Cleaning

  • Hinged tray

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 tube pattern 50 x 50 mm (or 60 x 60 mm)
  • Special copper tubes for HFC, coolant and CO2
  • Stainless steel tubes for NH3 (or hot-dip galvanised steel)
  • Surface-corrugated aluminium fins for high heat transfer

Casing

  • Corrosion-resistant aluminium alloy AlMg
  • From fan diameter 650 mm, galvanized steel
  • Powder-coated with RAL 9003

Tray

  • Corrosion-resistant aluminium alloy AlMg
  • Separate drip plate
  • Thermally-decoupled tray (condensation free)
  • Powder-coated with RAL 9003

Fans

  • Proven quality fans
  • Internal motor protection with thermocontacts
  • Fan diameter 400 mm: 230 V, 1~, 50 Hz or 60 Hz
  • Fan diameter from 450 mm: 400 V, 3~, 50 Hz or 60 Hz

Product Types / Refrigerant / Capacity

 

 

 

References

Vegetables for the region of Moscow: Cooling efficient at high humidity

Vegetables for the region of Moscow: Cooling efficient at high humidity

In its new central vegetable warehouse in the region of Moscow, the wholesaler Moskovskij Kombinat established cold stores which are individually adjustable in terms of room temperature and relative humidity. Güntner air coolers and Güntner fluid coolers/dry coolers provide a consistently high quality of the fresh goods and an efficient heat dissipation on the 20.000 m² storage space.

 

Project description (872 KB)

Fine-tuned refrigeration - fine tuna

Fine-tuned refrigeration - fine tuna

Fish processing makes the highest demands on hygiene, corrosion resistance, ease of maintenance and longevity. Choosing the right equipment, it is even an economical solution.

 

Project description (2.88 MB)

Fresh and crunchy - Greengrow carrot storage

Fresh and crunchy - Greengrow carrot storage

During planning of a new store, many requirements have to be taken into account. What design should the air coolers have? And how to incorporate appropriate control options?

 

Project description (327 KB)

Energy efficiency at Fruchthansa

Energy efficiency at Fruchthansa

When building its new cold storage facility, Fruchthansa chose a holistic concept. It not only takes into account the preservation of fruit and vegetables in storage, but also optimal storage energy efficiency.

 

Project description (830 KB)

Media

Publications

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

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

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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

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Influence of heat exchanger design on dehumidification and frost formation

Influence of heat exchanger design on dehumidification and frost formation

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Sensible use of energy-saving fans

Sensible use of energy-saving fans

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

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

Download

Tips

temperature in the deep-freeze room

temperature in the deep-freeze room

Download

subcooling and system efficiency

subcooling and system efficiency

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Videos

Accessory

  • Epoxy-resin coated fins
  • Fans wired on connection socket
  • Factory-fitted thermostatic expansion valve
  • Insulated tray Insulated fan plates
  • Core tubes made of stainless steel
  • Fins made of stainless steel
  • Casing and tray made of stainless steel

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