Hitachi RPI-8.0FSN3E Installation And Operation Manual page 11

UNITS INSTALLATION

Suction Air Filter Servicing
Air Filter Support
Removing Direction
3.1.4 Fan Performance Curve
Std. Air Filter Pressure Lost
"●" Rated Point
Fan Speed
Static Pressure
HSP
LSP (Std. Factory
Setting)
HSP: High Static Pressure
LSP: Low Static Pressure
3.1.5 Static Pressure Setting
RPI units have been provided by two Static Pressure levels regulation depending on the installation requirements:
High Static Pressure and Low Static Pressure (Std. Factory Setting) connectors are available into the Electrical Box.
Setting of Static Pressure shall be made by changing the Fan Unit connector.
5 PMML0229A rev.3 - 05/2016
Air Filter
RPI-8.0FSN3E(-f)
*
Air Flow (m3/min)
Hi Med Low
v1 v1 v3
v2 v2 v4
Remove the stay support (4 screws) from the
unit and pull down the Air Filter.
RPI-10.0FSN3E(-f)
*
Air Flow (m3/min)
?
N O T E
• When design a duct, check to ensure that the Air volume is within
working range as indicate "Fan Performance Curve".
• If the Air volume is set outside working range, water-carry-over (drop
in the ceiling or into the room), noise increases, fan motor damaged
(high temperature), insufficient Cooling/Heating capacity, phenomena
can occur.
• Therefore design ducts and select the correct fan speed in order to
keep the unit running in the accepted working range.