
Mueller E-Star OESE 3.5 and 5 HP HFC Condensing Unit
Installation and Operation Manual, Part No. 8828747
Effective April 13, 2020
9.1
SOUND
TESTING
EQUIPMENT
The manufacturer tested sound levels of the E-Star HiPerForm condensing unit under normal operating
conditions with the compressor and condenser fan motor operating. Measurements were taken with a sound
meter, Model 33-2055, on the “A-weighted” scale.
9.2
SOUND
MEASUREMENT
All sound measurements were recorded at a distance of 1 meter (3.28 feet) from the operating equipment. The
highest recorded measurement was 84 dB.
FIGURE 7: SOUND MEASUREMENT
21
Section 9.0 – Equipment Sound Level
84 dB
80 dB
81 dB
81 dB
Compressor
Condenser