Haier AB122ACERA Service Manual - Page 9

Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA Norminal condition: indoor temperature (cooling): 27℃DB/19℃WB, indoor temperature (heating): 20℃DB Outdoor temperature(cooling): 35℃DB/24℃WB, outdoor temperature(heating): 7℃DB/6℃WB The noise level will be measured in the third octave band limited values, using a Real Time Analyser calibrated sound intensity meter. It is a sound pressure noise level. The detailed method please refer to the following information: Installation state: the unit should be placed on the flat floor or be mounted in horizontal direction. Testing method: mounting-on-ceiling unit: built-in-ceiling unit: 1m 1.4m 1m duct unit without auxiliary duct: 2m duct duct unit with auxiliary duct: 2m auxiliary duct 1m auxiliary duct 1.4m 1.4m outdoor unit: 1.air outlet from side: the noise level is the average sound pressure level measured from front, left, right directions. 2.air outlet from top: the noise level is the average sound pressure level measured from front, back, left, right directions. measured point: H ( height to the ground) = (h (unit height) + 1m) /2 and, it is 1m to each side. 1m 1m 1m h 1m Note: ⊙ is the real time analyser 9