Sanyo C1852, XS1852, CL1852 Indoor fan motor FMI Indoor unit Measure the coil resistance

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11. SERVICE PROCEDURES

3)Checking the Electrical Parts

1 Power transformer (TR1)

Indoor unit *Measure the coil resistance.

Primary 230-208 V ; Measure the resistance between two WHT lead wire terminals of socket connected to power transformer.

Secondary 10.6 V ; Measure the resistance between two BRN lead wires.

Refer to “2. (3) (A) Other component specifications”.

2 Power transformer (TR)

Outdoor unit *Measure the coil resistance.

Primary 230-208 V ; Measure the resistance between two WHT lead wire terminals of socket jointed to power transformer.

Secondary 19 V ; Measure the resistance between two BRN lead wires.

Refer to “2. (3) (B) Other component specifications”.

3 Indoor fan motor (FMI)

Indoor unit

*Measure the coil resistance.

Measure the resistance between each terminal of the socket connected to the indoor fan motor.

Refer to “2. (2) (A) Major component specifications”.

4 Outdoor fan motor (FMO)

Outdoor unit

*Measure the coil resistance.

Measure the resistance in the same manner as explained above 2. Refer to “2. (2) (B) Major component specifications”.

5 Motor capacitor

Both in indoor and outdoor unit

Remove the lead wires from the capacitor terminals, and then place a probe on the capacitor terminals as shown in Fig. 18. Observe the deflec- tion of the pointer, setting the resis- tance measuring range of the multim- eter to the maximum value.

The capacitor is “good” if the pointer bounces to a great extent and then gradually returns to its original posi- tion.

NOTE

The range of deflection and the deflection time differ according to the capacity of the capacitor.

Multimeter

Ω

Compressor motor capacitor

Fan motor capacitor

Fig. 18

1041_X_S

 

SM830079

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Contents Indoor Unit Outdoor Unit XS1852 C1852 Technical DataIf Necessary, Get Help Please Read Before StartingTable of Contents Introduction Read Me First XS1852 / C1852 Operating RangeXS1852 / CL1852 Unit Specifications SpecificationsData Subject to Change Without Notice Fan motor Major Component Specifications Indoor UnitCompressor Major Component Specifications Outdoor UnitModel No XS1852 Power Transformer Other Component Specifications Indoor UnitModel No CL1852 Other Component Specifications Outdoor UnitIndoor Unit XS1852 Dimensional DataOutdoor Unit C1852, CL1852 230V Performance ChartsModel XS1852 AIR Throw Distance ChartInsulation of Refrigerant Tubing Refrigerant Flow DiagramTo prevent heat loss and wet floors due to dripping Tubing Length Installation InstructionsAvoid Selecting the Installation SiteChoose a place that is well ventilated ÃInstall the outdoor unitBaffle Plates for the Outdoor Unit CL×× models only Electrical Wiring General Precautions on Wiring Models Wiring System DiagramElectrical Data Electrical Wiring Diagrams Electric Wiring DiagramSchematic Diagram Outdoor Unit C1852 Outdoor Unit CL1852 Processes and Functions Room Temperature ControlDrain Pump Control Freeze PreventionMedium Service Procedures 1334XS There is a possibility of short circuit Check remote control unitTransformer in indoor unit Check Operation selector switch in the indoor unitCheck. auxiliary relay FMI Check fuse on the P.C.B. Ass’y in the indoor unitCheck set temperature Check Cool / FAN selector switch in the remote control unitOutdoor Unit does not Run Check compressor motor magnetic contactor Check float switch Refer to 11 Drain Pump ControlIndoor fan does not run Indoor Unit does not RunIndoor fan and louver motor do not run Some Part does not OperateOutdoor Fan does not Run for CL1852 Outdoor Fan does not RunCompressor does not Run Excessive Cooling Poor CoolingOperation of Major Electrical Parts Room temp. Sensor in the remote control unit is defectiveMeasurement of Insulation Re- sistance for Electrical parts Power Supply WiresCompressor motor thermal protector . . . . . . Outdoor unit Checking the Protective DevicesMotor capacitor Both in indoor and outdoor unit Indoor fan motor FMI Indoor unit Measure the coil resistanceContinuity of fuse on P.C.B. Ass’y Thermistor Characteristic CurveMethod Used to Replace Fuse on PCB Ass’y Central Region
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XS1852, CL1852, C1852 specifications

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