Fujitsu 18RLX Service-Bulletin - Seite 5

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CASSETTE

Field Supplied

Fan Static Pressure Requirements:

Static pressure required at Cassette

25 ft. 4" duct + intake=45ft. TEL x .04/100 = .018 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

4" Duct

Fan

2.75" x 4"

Transition

15 CFM

Outside (Fresh)

= .24 in W.C.

TOTAL =.258 in W.C.

58.8 Pa

.24 in W.C.

Air Intake