Haier AU122AEERA Service Manual page 9

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:
1m
duct unit without auxiliary duct:
2m
duct
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.
h
Commercial Air Conditioner
built-in-ceiling unit:
duct unit with auxiliary duct:
auxiliary duct
1m
Model: AU122AEERA AB122ACERA
2m
auxiliary duct
1m
Note: ⊙ is the real
time analyser
9
AC122ACERA AD122ALERA
1m