Simulator sistem tata udara untuk ruangan yang berbeda temperatur ini menggunakan sistem pendistribusian udara penuh. Simulator ini memiliki 3 buah damper yaitu damper outside air, return air dan mixing air. Variasi bukaan damper outside air dan return air maka akan mempengaruhi kondisi udara yang akan masuk koil. Ketika udara masuk koil berasal dari udara return air maka temperatur udara yang akan didinginkan oleh koil (entering air) akan lebih rendah dibandingkan pada saat menggunakan udara luar atau udara campuran. Temperaturnya berkisar antara 21.3 – 24.3 ℃. Jika temperatur masuk koil yang lebih rendah maka temperatur ruangan akan semakin rendah. Selain kondisi udara masuk koil, kondisi udara suplai menentukan kondisi ruangan tersebut. Berdasarkan pengukuran, temperatur ruangan pertama antara 19.6 – 25.6 ℃ dan debit udara suplai antara 0.019 – 0.029 m3/s. Temperatur ruangan kedua berkisar antara 21.4 – 26.3 ℃ dan debit udara suplai antara 0.015 – 0.028 m3/s. Pada ruangan panas udara dari luar ruangan langsung dipanaskan oleh heater. Temperatur pada ruangan panas tersebut 24.6 – 33.7 ℃ dengan debit udara suplai 0.011 - 0.016 m3/s. Kata kunci : damper outside air, damper return air, debit, sistem tata udara, dan temperatur.

Simulator of air conditioning system for rooms which have different temperature uses all air system. This simulator has 3 dampers, outside air damper, return air damper and mixing air damper. Variation of opening outside air damper and return air damper will affect the entering air. When entering air come from return air so the air temperature that is cooled by coil (entering air) will be lower than entering air temperature which uses outside air or mixing air. The range of temperature is between 21.3 – 24.3°C. The lower entering air temperature, the room temperature will be lower. Beside that, supply air condition will affect room temperature. Based on measurements, the first room temperature is between 19.6 – 25.6°C and supply airflow is between 0.019 – 0.029 m3/s. Second room temperature is between 21.4 – 26.3°C and supply airflow is between 0.015 – 0.028 m3/s. In the warm room, the air is heated by heater directly. The temperature of warm room is between 24.6 – 33.7°C with supply airflow is between 0.011 – 0.016 m3/s. Keywords : outside air damper, return air damper, airflow, air conditioning system, and temperature.

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