Hitachi RCI-4.0FSR - KPI-(252-2002)E4 E Energy Recovery Unit And Kpi-(502-1002)X4 E Active Unit

3 Electrical and control settings
Wiring diagrams
SMGB0137 rev.0 - 05/2021
75
3
3.3.13 KPI-(252-2002)E4E energy recovery unit and KPI-(502-1002)X4E active unit
Mark Name
CNn Connector on PCB
PCNn Power connector on PCB
DSW3-7 DIP switch for setting
RSW1,2 Rotary switch for setting
EFR1 Power supply fuse
EF2 PCB fuse EF3 Fuse for PCN5 connector
EF1-2
Fuse for fans (located in the terminalbox)
MS1,2 Motor for automatic swing louver
MV
Micro-computercontrolexpansion valve
FS Float switch
PCB1,2 Printed circuit board
TB1,2 Terminal board
THM1-5 Thermistor
NF1 Noiselter
TF Transformer
CN23-30 Aerial connector
RCS Remote control switch
DMP Damper
SEGn 7-segments display
PSW1-3 Push button
OA Outdoor air
RA Return air
1~ 230V 50 Hz
Main
switch,
CB (fuse),
ELB
(Main PCB)
Air
Outlet
Air
inlet
Liquid Gas<Blue> <Red>
For 230V
fan fan
Option
Inlet Outlet
DX Coil
CO2 sensor
ON/OFF
CO2 Sensor
PCB1Socketslocation
PCB2Socketslocation
Electricalbox
Relay for
auxiliary
heater
1~ 230V 50Hz