Room cooling
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PRACTICAL KNOWLEDGE GUIDE ROOM COOLING EVERYTHING YOU NEED TO KNOW!

THERE ARE MANY POSSIBILITIES FOR COOLING ROOMS. WE WILL SHOW YOU WHAT TO WATCH OUT FOR SO YOU CAN ACHIEVE YOUR OBJECTIVE QUICKLY AND EFFICIENTLY. PRACTICAL KNOWLEDGE CONCERNING AIR CONDITIONING INFORMATION REGARDING THE PRACTICE-ORIENTED CALCULATION OF THE REQUIRED DEVICE PERFORMANCE AND THE TECHNOLOGY EMPLOYED BY DIFFERENT COOLING SYSTEMS Which cooling technique? Monobloc or split unit, one-hose or twohose technology, evaporation cooler or refrigeration system? If you are looking for the ideal device to provide refreshingly cold air in rooms with high temperatures, you may easily lose...

Rough calculation of the required cooling capacity in due consideration of the room type and how it is used: W 30 watts per cubic metre for ideal-typical standard rooms provided with passive house insulation, normal sized window area and little frequented Additional 10 watts per cubic metre if there are more than 3 individuals in the room Additional 10 watts per cubic metre if the size of the window area exceeds the average 50 watts per cubic metre for rooms in attic flats Especially in case of attic flats in old buildings determining the required cooling capacity remains a difficult task due...

Refrigerant circuit Warm air EXPANSION VALVE MOBILE AIR CONDITIONING SYSTEMS – CONVENIENT REFRIGERATION SYSTEMS Some basics about cooling technology for a better understanding: Unlike air coolers, all air conditioners of our PAC series cool the room air with the help of a powerful compression refrigeration system. A refrigerant is led through two heat exchangers – a condenser and an evaporator. By means of a compressor and an expansion valve, the refrigerant is exposed to changing pressures within this closed cir- cuit, which results in the gas heating up during compression and cooling down...

Similar appearance, different technology: Air cooler PAE 25, monobloc air conditioner PAC 2010 E and split air conditioner PAC 4600 (FLTR). Practical tip: Even if it were possible with the device used, the room temperature still should not be cooled down excessively. This would not just unnecessarily increase the energy consumption, common colds during the summertime are in part also attributed to a “cold-shock response” upon entering a chilled room. We therefore recommend to adjust the room temperature to a level of about 3 °C below the outside temperature – however by no more than 5 °C....

ADIABATIC COOLING WITH MOBILE AIR COOLERS The physical principle in short: In order to evaporate, the water requires energy. This energy is extracted from the ambient air in the form of heat, which makes the air cooler. It is important to note that the energy stored in our room air can be divided into sensible (or perceptible) heat and latent (i.e. hidden) heat. The highlight: only the sensible heat is temperature-relevant and can be measured with a thermometer. Since this sensible heat is consumed during evaporation and then stored as latent energy in the water vapour contained in the air,...

COMFORT CHART (according to Leusden and Freymark) With a difference of 10 to 18 °C between the incoming and exiting air at the device, air conditioners of the PAC and PT series produce far greater temperature differences than air coolers which generally can attain no more than 1 to 3 °C difference. Seeing as the room is constantly supplied with warmth at the same time - be it through walls or door gaps - the room air can, on balance, be cooled down by approx. 4 to 15 °C using compressor-operated air conditioners - as usual depending on the applied model as well as on the climatic conditions...

Grebbener StraBe 7 52525 Heinsberg Germany Phone +49 2452 962-400 Fax +49 2452 962-200 info@trotec.com www.trotec.com Practical knowledge concerning air conditioning Monobloc or split unit, one-hose or two-hose technology, evaporation cooler or refrigeration system? If you are looking for the ideal device to provide refreshingly cold air in rooms with high temperatures, you may easily lose track of things in view of the manifold options and techniques. Benefit from the comprehensive overview of the device differences, functional principles and possible applications provided in this...