Noise Reduction Measures for Stainless Steel Insulated Fan Coil Units

Noise Reduction Measures for Stainless Steel Insulated Fan Coil Units

Noise reduction for stainless steel insulated fan coil units is a common concern for designers, hotel managers, and guests alike. Therefore, efforts to reduce noise in guest rooms must begin at the design stage. There are three primary sources of noise pollution caused by guest room air conditioning systems: the outdoor air system, the exhaust system, and the fan coil system. Installing silencers and vibration dampers can reduce noise. However, since stainless steel insulated fan coil units are installed directly within guest rooms, special noise reduction measures must be taken based on their shape and installation location to minimize noise disturbance. The noise reduction measures are as follows. (1) Select low-noise fan coil units. Choose models after measuring the noise of samples, taking into account the difference between samples and mass-produced units. Typically, this difference is 5 dB(A). (2) Select the configuration of the stainless steel insulated fan coil units appropriately based on the permissible noise standards for guest rooms. 1) When the guest room noise level is below 30 dB(A) and the noise evaluation curve is Nc-20: If conditions permit, the fan coil unit can be installed in the duct room to generate noise. This involves the ductwork from the fan outlet to the air outlet in the room. 2) If cabin noise must not exceed 35 dB(A) and the noise evaluation curve is Nc-25, a horizontal fan coil unit can be installed on the ceiling of the cabin lobby, with a baffle added in front of the exhaust outlet. 700 long tubular | sound-absorbing devices can reduce rear noise by approximately 6 dB(A). Vertical fan coil units must be installed separately from beds and tables, and a “room-style” silencer will be added to the upper (exhaust) section. 3) Cabin noise must not exceed 40 dB(A) and Nc-30: During nighttime sleep, noise levels should be reduced to moderate levels, with vertical or cavity-type fan coil units operating at low speed. Noise levels. Fan Coil Water Supply System and Operation Adjustment Methods In the design of the fan coil water supply system, air must be purged from the piping system within a specified time when the fan coil is in operation. To prevent system water shortages, dust accumulated in the air return filter must be cleaned regularly. Do not allow debris to block the wooden drain openings in the fan tray. Condensate must be able to drain smoothly.