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(2) Measurement of Insulation Resistance for Electrical parts • Disconnect the connector of the desired electric part from terminal plate, P.C.B. Ass’y, etc. (Fig. 27) • Similary, disconnect the lead wires from compressor, capacitor, etc. (Fig. 28) • Measure the resistance in the same manner as illustrated on the right. Refer to Electrical Wiring Diagram. NOTE If the probe does not enter the hole because the hole is too narrow, use a probe with a thinner pin. Metallic part IV - 37 Clip Clip Copper tube or metallic part Probe 4. Service procedures Insulation tester From fan motor, compressor and other parts. Insulation tester 0641_X_S Probe 0640_X_S Fig. 27 Fig. 28 1 2 3 4 5
1 12 3 4 5 (3) Checking the Protective Devices IV - 38 4. Service procedures • Disconnect the connector, which consists of P (plug) and S (socket) when you want to check the protective device. • Then check continuity among plug’s (and/or socket’s) terminal as in Fig. 29. • Normality of the protective device can be judged by the following table. The Protective Device is proved normal if there is a continuity between terminals. socket Multimeter Fig. 29 1 Indoor fan motor thermal protector (49FI) . . . . . . Indoor unit • Disconnect 9P connector (WHT) which leads to the indoor fan motor (FMI). • Check the socket’s terminals between No. 8 (GRY lead wire) and No. 9 (GRY lead wire). 2 Compressor motor thermal protector (49C) . . . . . . Outdoor unit • Only for the SPW-C253GH8 and SPW-C363GH8. Disconnect the 8P connector (white), and the 9P connector (white) on the P.C. board, and check 8P (white) plug’s No. 4 (GRY lead wire) and socket’s No. 9 (GRY lead wire) on the P.C.board. 3 Outdoor fan motor thermal protector (49FO) . . . . . . Outdoor unit • Disconnect 8P connector(s) (WHT) which lead(s) to the outdoor fan motor (FMO). • Check socket’s terminal between No. 3 (GRY lead wire) and No.4 (GRY lead wire). 4 High pressure switch (63PH) . . . . . . Outdoor unit • Disconnect the socket (63PH) of 3P (red) connecting to the P.C. board, and check both sides (1 (white), 3 (red)). Ω 0642_X_S
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TECHNICAL DATA & SERVICE MANUAL ASR
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WHO SHOULD USE THIS MANUAL This ser
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Introduction: Read Me First! This m
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1 12 3 4 5 1-1 Unit Specifications
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1 12 3 4 5 1-2 Major Component Spec
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1-2 Major Component Specifications
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1-3 Other Component Specifications
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1 12 3 4 5 1-3 Other Component Spec
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1 12 3 4 5 1-3 Other Component Spec
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1 12 3 4 5 1-4 Dimensional Data (A)
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1 12 3 4 5 1-4 Dimensional Data (A)
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1 12 3 4 5 1-4 Dimensional Data 11
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1-4 Dimensional Data 340 735 (B) Ou
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1-5 Refrigerant Flow Diagram Outdoo
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1-5 Refrigerant Flow Diagram Outdoo
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1-7 Cooling Capacity Indoor Unit :
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● Heating Capacity NOTE Comp. mot
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OCTAVE BAND SOUND PRESSURE LEVEL, d
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1 12 3 4 5 1-8 Noise Criterion Curv
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1-10 Air throw Distance Chart 4-Way
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1-11 Installation Instructions Tubi
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1-11 Installation Instructions Outd
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1-11 Installation Instructions Sele
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1-11 Installation Instructions ■
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1-11 Installation Instructions ■
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1-11 Installation Instructions Elec
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2. Processes and functions 2. PROCE
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(B) Heating REMOTE CONTROL SENSOR (
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2-3 Automatic Fan Speed (Indoor Uni
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2-5 Freeze Prevention (Cooling) 2.
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2-7 Overload Protection (Heating) T
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2-9 Auto. Mode for Automatic Heatin
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2-11 4-Way Valve, Solenoid Control
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2-13 Electronic Expansion Valve II
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2-16 Dehumidifying Operation II - 1
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Page 127 and 128: 3-1 Indoor Units 1 4-Way Air Discha
Page 129 and 130: 3-1 Indoor Units 2 Ceiling Mounted
Page 131 and 132: 3-1 Indoor Units 6 Concealed Duct T
Page 133 and 134: 3-2 Outdoor Units 1 AER 425 SCLE -
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Page 145 and 146: 1 12 3 4 5 Possible causes of troub
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Page 161 and 162: 1 12 3 4 5 (C) Check the sensor tem
Page 163 and 164: 1 12 3 4 5 This picture shows the s
Page 165 and 166: 1 12 3 4 5 (F) Execute the auto. ad
Page 169 and 170: 1 12 3 4 5 ( I ) Set the indoor uni
Page 173: 1 12 3 4 5 4-2 Checking the Electri
Page 179 and 180: 1 12 3 4 5 (5) Sensor and Solenoid
Page 181 and 182: 1 12 3 4 5 Indoor Unit TH2 (E1), (R
Page 183 and 184: 1 12 3 4 5 Outdoor Units • AER 44
Page 185 and 186: 1 12 3 4 5 (7) P.C.B. Setting IV -
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Page 189 and 190: 1 12 3 4 5 (12) Test Run Procedure
Page 191 and 192: 1 12 3 4 5 5-1 P.C.B. V-2 5. Append
Page 193 and 194: 1 12 3 4 5 5-1 P.C.B. Indoor Unit C
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