Hitachi UTOPIA RAS-4HVRP2E - Removing Electrical Box

9 Servicing
RAS-(4-6)H(V)(R/N)(C/P)2E
SMGB0136 rev.0 - 07/2021
186
7 Remove 4 screws which x the motor.
Model RAS-(4-6)H(V)(R/N)(C/P)2E
Connector pin location Inverter PCB - CN406
Motor xing screws 4x M5 screws
1. Motor clamp
2. Fan motor lead wire
3. Plastic band
4. Fan motor
NOTE
1.Tomountthemotorbesuretoplacetheleadwireoutletdownward.(Adjustthepropellerfanandshroudnottocontactwitheachother).
2.Fixthemotorleadwireontothemotorclampusingaplastictieasshowninthetableonthepreviouspagetoavoidobstructingthe
propellerfan.
3.Mountingpropellerfan:Inserttheskiddingprotectionpartofthefanbossmatchingwiththemotorshaftnotch;tightenthenutafterthe
shaftscrewfullycomesout.(TighteningTorque20Nm)
4.ConnectthemotorleadwiretoPCB1oftheelectricalbox.(BesuretomatchcolorsofthePCBconnectorsandmotorleadwirecon-
nectors).
5.Besuretoattachtheoutletgrilleontotheshroudafterreplacingthefanmotor.
9.3.6 Removing electrical box
? NOTE
Theimagesmaydifferinsomedetailswithrespecttothenalproduct.
1 Disassembly the upper cover according to the item “9.3.3Removinguppercover”.
2 Disassembly the service cover according to the item “9.3.1Removingservicecover”.
3 Remove the 6 xing screws -1- of the electrical box.
4 Disconnect the necessary connectors depending on the OU model.
Model Code Denomination id. Location
RAS-(4-6)HV(R/N)(C/P)2E
-A-
CN406 Fan motor 11 PCB3
PCN10 Low pressure switch (for control) 8 PCB1
CN100 Pressure sensor 7 PCB1
PCN7 Solenoid valve coil (SVA) 10 PCB1
PCN100 4-way valve coil 9 PCB1
THM7-9 Thermistors 3, 5, 6 PCB1
PCN5 Crankcase heater 2 PCB1
CN17 High pressure breaker Device 1 PCB1
CN5A Expansion valve 4 PCB1
CN16 Compressor - Aerial
RAS-(4-6)H(R/N)(C/P)2E
-B-
CN406 Fan motor 13 PCB1
PCN6 4-way valve coil 20 PCB1
CN5A Expansion valve 14 PCB1
PCN7 Solenoid valve coil (SVA) 22 PCB1
CN100 Pressure sensor 19 PCB1
CN17 High pressure breaker Device 12 PCB2
PCN5 Crankcase heater 21 PCB1
PCN10 Low pressure switch (for control) 18 PCB1
THM7-9 Thermistors 15, 16, 17 PCB1
CN16 Compressor - Aerial