There are often climate-control requirements where the loss effect from the electronics is not automatically conducted away! 

A forced throughflow of air is created in the cabinet with ventilation components such as filter fans and circulation fans, evening out the internal temperature difference. If EMC-tight filter fans are also required, this can be achieved using specific models with EMC bronze spring seals.

The use of filter fans for discharging waste heat is an efficient, inexpensive and reliable way of optimising the operating climate for demanding electronic systems.

Fans with surface-mounted heating areas can be used in applications where condensation formation may present a problem. The LV fan range + GV exit filter range are
IP 54. They are all supplied with filter mats and packing.

Air-to-air 
For outdoor and indoor installations, Duelco offers air-to-air heat exchangers developed as  reverse-current and cross-current exchangers. This design guarantees maximum performance relative to the volume used. A very high degree of tightness is achieved due to the primary air circulation being completely separate from the secondary circulation. (IP 56)

Thanks to their simple construction heat exchangers are extremely operationally secure at advantageous prices.

Air-to-water 
Compact air-to-water heat exchangers offer a genuine alternative where there is access to cooling water. This provides attractive efficiency as the air-to-water transition is better than air-to-air. 

Top-mounted FILTERLESS
Refrigeration unit mounting on a cabinet:

• Filterless and hence almost maintenance-free
• Cooling capacity: 450 W - 1.1 kW

Wall-mounted FILTERLESS
Maximum cooling performance with one of the most compact refrigeration units on the market ñ the Seifert Slimline series. Together with the optimised infeed and socket positioning, the optimised condenser profiles in the heat exchanger with the substantially rippled aluminium profile produce maximum cooling.

• Cooling capacity: 320 W - 1.5 kW
• Filterless and hence almost maintenance-free
• Painted and with NEMA 4X approval

Wall-mounted refrigeration units 
Duelco is a reseller of the entire Seifert range of wall-mounted refrigeration units. The cooling effect covers a wide area, so you always have the right effect for the task in hand. We have units for both indoor and outdoor applications, with built-in heating coils or evaporators in an external evaporator circuit. An outstanding technical quality product for your own specific application.

• Cooling capacity: 320 W - 6 kW
• Painted, and with the option for RF implementation with NEMA 4X approval

Mini units 
Duelcoís mini refrigeration units are the safe choice for smaller cabinets and control cabinets where loss effects result in damaging temperature rises, which are destructive for modern electronics. These units also come with:

• Compact structure
• High performance
• Painted and with NEMA 4X approval

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SlimLine ComPact Line

DIN rail-mounted heating elements may be the answer to condensation problems, especially in outdoor installations.

For mounting on DIN rails or directly on back plates.

The range includes heating elements with outputs from 25 W to 800 W.

However, temperature and humidity control is also required for the function to be as desired. Duelcoís range of thermostats is adjustable from -45 degrees to +120 degrees and is suitable for mounting on DIN rails.

If the problem also involves a moisture level which is too high or too low the thermostat can be combined with a hygrostat!

Calculation software for cabinet climate control

https://seifertsystems.com/en/calcoolator/