Product data

11.Freshairandducting
a. Theceiling-suspendedfancoilunitsmaybringin
upto30%freshair.Thepercentageofairallowableis
calculated based on the unit high speed cfm. Air quan-
tities above this level may exceed compressor maxi-
mum saturated suction temperatures. A power
ventilation kit is available to overcome ventilation duct
static. See Power Ventilation Kit Available Static Pres-
sure table below.
b. Thein-ceilingcassettefancoilunitsmaybringin
up to 20% fresh air. This 20% maximum should not be
exceeded. A power ventilation kit is available to over-
come ventilation duct static. See Power Ventilation Kit
AvailableStaticPressuretablebelow.
c. Thein-ceilingcassettefancoilunitsmayhavean
extension duct installed. See Static Capability and
Design Considerations figures on this page.
POWERVENTILATIONKITAVAILABLESTATICPRESSURE
FAN
HP
WATTS RPM VOLTAGE
CFM AT STATIC PRESSURE (in. wg)
DUCT DIA.
(in.)
0
1
⁄ 8
1
⁄ 4
3
⁄ 8
1
⁄ 2
3
⁄ 4 11
1
⁄ 2
1
⁄ 15 1502700208/2303703353182982562191891126
Static Capability and Design Considerations, Systems Using In-Ceiling Cassette 024-048 Fan Coil Units