Sound And Vibration Transmission; Fig. 12 - Static Pressure Probe Location - York eco2 050 Installation Operation & Maintenance

Installation of elbows, discharge
damp er and oth er abrupt fl ow area
changes installed di rect ly at the fan
outlet will cause system losses. These
losses must be taken into account
dur ing the de sign phase and must be
add ed to any fi eld mea sure ments.
FIG. 12 – STATIC PRESSURE PROBE LOCATION
YORK INTERNATIONAL
SOUND AND VIBRATION TRANS MIS SION
All roof mounted air handling units generate some
sound and vibration, that may or may not require some
special treatment of the air con di tioned space. The noise
gen er at ed by the air handling unit is dependent on the
speed of the fan, the amount of air the fan is moving,
the fan type and the static efÞ ciency of the fan. In ap-
pli ca tions where sound and vibration transmissions may
be ob jec tion able, good acoustical engineering prac tic es
must be incorporated in the system design.
STATIC PRESSURE PROBE
FORM 100.50-NOM1 (604)
2
LD06758
35