Service manual

List of Electrical and Functional Parts SiUS28-902_a
9 List of Electrical and Functional Parts
1. List of Electrical and Functional Parts
1.1 Outdoor Units
Item Name Symbol
Model
Remark
(P.C.B. terminal)
RZQ18
PVJU
RZQ24
PVJU
RZQ30
PVJU
Compressor Inverter
Type
M1C
2YC63HXD#ED
1.7kW
—
Output
Fan motor
Motor M1F 0.07kW —
Overcurrent relay — 3.2A —
Functional
parts
Electronic expansion
valve
Cooling
Y1E
1400pls A1P X21A
Heating PI control
Four-way valve Y1S STF-01AQ555A1 A1P X25A
Solenoid valve (Hot gas) Y2S TEV-MOAQ1684Y1 A1P X26A
Solenoid valve (Injection) Y3S TEV-MOAQ1685Y1 A1P X27A
Pressure-
related parts
Pressure switch (INV.) S1PH
ACB-4UB10
ON: 580+0/-22 psi OFF: 435±22 psi
A1P X32A
Fusible plug — DFP-3L 158~167°F —
Pressure sensor (HP) S1NPH NSK-BD042D~212 0~602 psi A1P X504A
Pressure sensor (LP) S1NPL NSK-BD017D-211 -7~247 psi A1P X503A
Thermistor
Main
P.C.B.
For outdoor air R1T ST9303-4 A1P X11A
For discharge R2T ST9701-4 A1P X12A 1-2Pin
For suction 1 R3T ST8602A-5 A1P X12A 3-4Pin
For heat exchanger R4T ST8604A-7 A1P X12A 5-6Pin
For suction 2 R5T ST8604A-7 A1P X12A 7-8Pin