York YOKC-D 18 series Service Manual page 33

4). 48000btu/h
Audibility limits of
continuous white
sound
Octave band center frequency £¨ Hz £©
Ceiling
5). 60000btu/h
Audibility limits of
continuous white
sound
Octave band center frequency £¨ Hz £©
Ceiling
Audibility limits of
continuous white
sound
Octave band center frequency £¨ Hz £©
Audibility limits of
continuous white
sound
655
Floor
Octave band center frequency £¨ Hz £©
Floor