![background image](http://html.mh-extra.com/html/fujitsu/18rlx/18rlx_service-bulletin_117962005.webp)
15 CFM
58.8 Pa
.24 in W.C.
CASSETTE
2.75” x 4”
Field Supplied
Transition
Fan
4” Duct
Outside (Fresh)
Air Intake
Fan Static Pressure Requirements:
Static pressure required at Cassette = .24 in W.C.
25 ft. 4” duct + intake=45ft. TEL x .04/100 = .018 in W.C.
TOTAL =.258 in W.C.
Fan Selection:
Select fan to deliver 15 CFM @ approximately .26 in W.C.
Static pressure requirements will vary with duct length and
inlet conditions.
NOTE
: Filter for outside air required. Add filter static pressure loss to static
pressure requirements above.
CEILING CASSETTE
OUTSIDE (FRESH) AIR INTAKE