3 Electrical and control settings
Unit electrical wiring and connection
SMGB0137 rev.0 - 05/2021
48
RPI-(16.0/20.0)FSN3PE(-f) Terminal board connections
Nº Part
PCB1 Printed circuit board 1
PCB2 Printed circuit board 2
TF Transformer
TB Terminal board
CB Circuitbreaker
AR Auxiliaryrelay
Wiring
holes
Service panel for
electricalbox
CB
AR
TB
PCB1
PCB2
TF
Test run
The fan motor in RPI-(8.0/10.0)FSN3E(-f) and RPI-(16.0/20.0)FSN3(-f)PE
unitscanbeconguredintwodierentways:
• A:connectorCN24LSP(LowStaticPressure)(factorysuppliedsetting);
• B:connectorCN25HSP(HighStaticPressure).
! CAUTION
Perform the connection with the same settings in both units that make up models
RPI-(16.0/20.0)FSN3E;otherwisemalfunctionmayoccur,causingdamagetotheunits.
According to the Static Pressure setting (connector CN24 LSP (Low Static Pressure) or CN25 HSP (High Static
Pressure))thefanspeedavailableintheRemoteControlSwitcharetheonesshowasexampleinthefollowingpictures.
• ExampleforRPI-(8.0/10.0)FSN3E(-f):
Static pressure setting HSP Static pressure setting LSP
Externalstaticpressure(Pa)
Lower ESP limit
Low
High / Med
Upper
ESP limit
Externalstaticpressure(Pa)
Lower ESP limit
Low
High / Med
Upper
ESP limit
Airow(m
3
/min) Airow(m
3
/min)
! CAUTION
• MakesureSP-02isselectedontheremotecontrolforRPI-(0.8-6.0)FSN4Eunitsinthecaseofshortductinstallations.Tocongure
SP-02,refertheoptionalfunctionsC5->”02”,lowstaticpressureoption.Makesurethelowstaticpressureoption(LSP)isselectedfor
RPI-(8.0/10.0)FSN3E(-f)units.
• Ensureaminimalresistanceismaintainedintheduct,asshowninthefanperformancegraphs.Startingtheunitwithaductthatistoo
short causes it to operate outside its accepted operating range.