Sanyo SA-123AH Technical & Service Manual Download Page 28

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APPENDIX

●

If the unit is turned off during cooling (or heating), DO NOT restart it immediately, as this can damage it. Wait at
least three minutes before starting it again.

CAUTION

VENTILATOR
lever

OPERATION
SELECTOR
switch

MODE
selector

AUTO DEFLECTOR
switch

FAN SPEED
selector

THERMOSTAT
knob

Unit Display and Control Panel

Cooler

Warmer

Open

Off

Low Fan

High Fan

Off

Cool

Heat

Model

SA– 123AH

Summary of Contents for SA-123AH

Page 1: ...TECHNICAL SERVICE MANUAL SA 123AH FILE NO REFERENCE NO SM700511 WINDOW TYPE AIR CONDITIONER Model No Product Code No SA 123AH SA 123AH 1 851 006 98 Destination Australia ...

Page 2: ...ur back Sharp edges or thin aluminum fins on the air conditioner can cut your fingers WARNING When Installing Place of Installation If possible install the unit in a shady location If the site is exposed to the sun you should provide a sun screen as shown in Fig a Install it at a spot where optimum cooling circulation can be obtained No chairs or other obstructions are allowed in front of the air ...

Page 3: ...nditioner functioning well and keep your customer satisfied Please read IMPORTANT precautional information on the previous page before you start actual work SANYO WINDOW TYPE A C NOMENCLATURE SANYO window type air conditioner is identified by a model number Cooling or heating capacity electrical information and special features included on the air conditioner are indicated on the model number ii E...

Page 4: ... does not operate 12 7 3 Some part of air conditioner does not operate 14 7 4 Air conditioner operates but abnormalities are observed 16 8 CHECKING ELECTRICAL COMPONENTS 8 1 Measurement of Insulation Resistance 17 8 2 Checking Motor Capacitor 18 8 3 Checking Fan Motor Winding 18 8 4 Checking Compressor Motor Winding 18 9 DISASSEMBLY PROCEDURES 9 1 Removing Front Grille 19 9 2 Removing Electrical C...

Page 5: ...ANGE Temperature Indoor Air Intake Temp Outdoor Air Intake Temp Cooling Maximum 32 C D B 23 C W B 43 C D B Minimum 19 C D B 14 C W B 19 C D B Heating Maximum 27 C D B 24 C D B 18 C W B Minimum 16 C D B 8 C D B 9 C W B ...

Page 6: ...ction Indoor Horizontal Auto Vertical Manual Air filter Air exhaust Washable Yes Compressor Rotary Hermetic Refrigerant Amount charged at shipment g R22 1 050 Refrigerant control Capillary tube Operation sound Indoor Hi Lo dB A 51 49 50 47 Outdoor Hi Lo dB A 59 56 61 59 Slide out chassis Yes Accessories Dimensions Weight Unit dimensions Height mm 375 Width mm 530 Depth mm 620 Package dimensions He...

Page 7: ...ic reclosing Operating amp Ambient temp 25 C Run capacitor µF 35 0 VAC 400 Fan Fan Motor Indoor Outdoor Type Centrifugal Propeller Dia Depth mm ø180 D85 ø320 D Fan motor model Q ty YSK70 4A 1 Source 220 240V Single phase 50Hz No of poles rpm 240 V High 4 1 150 Nominal output W 70 Coil resistance Ambient temp 20 C Ω WHT BRN 59 3 WHT YEL 20 4 YEL ORG PNK 58 3 Safety devices Type Thermal protector Op...

Page 8: ... 5 W Coil resistance Ω at 20 C Thermostat Defrost thermo CT 7 Rating AC 250V 50 60 Hz Operating temp C Start of defrosting 8 5 3 Release of defrosting 5 4 Auto Deflector Motor SM006 Rating AC 220 240V 50 60Hz 20mA 3 2 5 W 5 6 rpm Coil resistance kΩ at 20 C 14 5 10 2 3 Other Component Specification ...

Page 9: ...3AH 248 530 375 40 248 620 Slits for ventilation Side view L Front view Side view R Power code outlet Power code outlet Unit mm Dimension with mark indicates the maximum allowable wall thickness required for ventilating the unit NOTE ...

Page 10: ...4 REFRIGERANT FLOW DIAGRAM 6 Model SA 123AH Compressor 4 way valve Accumulator Condenser Evaporator Check valve Cooling cycle Heating cycle Capillary tube Accumulator ...

Page 11: ... 3 10 2 85 CM 1 03 1 11 1 19 1 28 1 44 1 61 21 SHC 1 60 1 53 1 45 1 38 1 30 1 19 19 23 SHC 1 88 1 81 1 73 1 66 1 58 1 47 25 SHC 2 16 2 09 2 02 1 94 1 86 1 75 27 SHC 2 44 2 37 2 30 2 22 2 14 2 03 29 SHC 2 72 2 65 2 58 2 50 2 42 2 31 31 SHC 3 00 2 93 2 86 2 78 2 70 2 59 TC 4 02 3 85 3 67 3 50 3 29 3 03 CM 1 06 1 14 1 22 1 31 1 48 1 65 23 SHC 1 57 1 50 1 43 1 36 1 27 1 17 21 25 SHC 1 85 1 78 1 71 1 6...

Page 12: ... the outdoor temperature is below freezing the following problems may occur depending on the temperature and humidity condditions The heating capacity may be substantially lowered Heating operation and defrosting may occur repeatdly in alternation If operation continues under the above condition the outdoor heat exchanger may freeze The above problem are not due to a malfunction The air conditione...

Page 13: ... C W B Outdoor Air Temperature 35 C D B Full Load Conditions Indoor Air Temperature 32 C D B 23 C W B Outdoor Air Temperature 43 C D B HEATING Fan Motor Compressor Complete Unit Performance at 240V Single phase 50Hz Rating Conditions Running Amps A 0 73 5 0 5 7 Power Input kW 0 173 1 17 1 34 Full Load Conditions Running Amps A 0 73 7 8 8 5 Power Input kW 0 173 1 85 2 02 Rating Conditions Indoor Ai...

Page 14: ...lectrical Wiring Diagrams Model SA 123AH To avoid electrical shock hazard be sure to disconnect power before checking servicing and or cleaning any electrical parts WARNING DATA SUBJECT TO CHANGE WITHOUT NOTICE ...

Page 15: ...k that power is being supplied 7 1 2 Check lead wires and connectors Check that coating of lead wires is not damaged Check that lead wires and connectors are firmly connected Check that wiring is correct 11 Hazardous voltage can cause ELECTRIC SHOCK or DEATH Disconnect power or turn off circuit breaker before you start checking or servicing WARNING ...

Page 16: ...part from circuit with other parts properly connected and then measure insulation resistance of entire air conditioner again to locate defective part 2 Replace defective part with new one NOTE Measure insulation resistance of electrical parts Example Compressor Fan motor Capacitor Relay etc NO Set circuit breaker to OFF 1 Pull the power plug out of the wall outlet Measure insulation resistance of ...

Page 17: ...TION SELECTOR switch is not set at OFF Set to ON NO Check power supply Power is being supplied to the unit Circuit breaker is tripped Power failure Reset breaker Wait for recovery or contact power company Replace with suitable one larger capacity NO Check capacity of circuit breaker Capacity of circuit breaker is suitable Measure resistance of fan motor winding Measure resistance of compressor mot...

Page 18: ...t be turned OK Check fan rotation Turn fan gently once or twice by hand Check fan casing foreign matter on inside Fan motor burnout or foreign matter in bearings Remove foreign matter or repair Repair or replace Measure resistance of fan motor winding Check fan motor capacitor 14 Measure resistance of auto deflector motor winding ...

Page 19: ...ssor motor capacitor Measure resistance of compressor motor winding NO YES YES YES Temperature of compressor is abnormally high Refrigerant gas shortage Charge refrigerant gas R22 Rotor may be locked up Measure power supply voltage The voltage is too low No Internal protector is working NO Is room temperature too low Try to lower setting temperature by thermostat knob COOLER COOL NO Is room temper...

Page 20: ...difference is small YES Temperature difference between suction and discharge air is large enough approx 10 deg or more Possibility of gas shortage Measure temperature of suction and discharge air of air conditioner Charge refrigerant gas R22 Check for clogging of air filter Fan speed is set to LOW Clean filter Set fan speed to HIGH Review cooling load estimate if performance of air conditioner is ...

Page 21: ...either of the two power blade Fig 1 Then also measure the resistance between the grounding prong and other power blade Fig 1 8 1 2 Measurement of Insulation Resistance for Electrical Parts Disconnect the lead wires of the desired electric part from terminal plate switch capacitor etc Similarly disconnect the connector Then measure the insulation resistance Figs 2 to 3 Refer to Electric Wiring Diag...

Page 22: ...easure the resistance between each lead wire with a tester The tester should be set in the X1 range If the fan motor is hot allow a few minutes until it gets cooled down When the resistances between each lead wire are those listed in 2 2 Major Component Specifications the fan motor should be normal 8 4 Checking Compressor Motor Winding Checking compressor motor winding can be done in the similar m...

Page 23: ...ide of the grille to the left and right to disengage the tabs on the left and right sides of the grille from the slots 4 Pull the bottom portion of the grille toward you while paying attention to the ventilator lever Fig 2 and 4 Pulling out too far on the bottom of the grille at this point could damage the tabs at the top Do not pull the grille out more than 100 mm 5 After confirming that the vent...

Page 24: ...he electrical component box Fig 6 9 3 Removing Cabinet 1 Remove screws holding the unit Fig 7 2 Remove the front grille Refer to 9 1 Removing Front Grille 3 Remove the stopper screw attached to the base pan of the unit Fig 8 4 While holding top of the cabinet with one hand grasp the handle with another hand and pull the unit toward you Fig 9 Fig 9 Fig 6 20 ...

Page 25: ...evaporator with both hands and tilt it slightly and lift it carefully from the drain pan so as not to distort the copper tube 9 5 Removing Blower Wheel 1 Remove the evaporator Refer to 9 4 Removing Evaporator 2 Loosen a nut holding blower wheel on motor shaft using hex wrench Fig 11 3 Remove the housing of blower wheel 4 Extract the blower wheel from the motor shaft ...

Page 26: ...nut holding propeller fan on motor shaft using hex wrench Fig 13 To loose the nut securing the propeller fan hold the fan with one hand and turn the nut COUNTERCLOCKWISE with another hand 3 Extract the propeller fan from the motor shaft 9 8 Removing Fan Motor 1 Remove blower wheel Refer to 9 5 Removing Blower Wheel 2 Remove propeller fan Refer to 9 7 Removing Propeller Fan 3 Disconnect motor lead ...

Page 27: ... 4 way valve changes the direction of refrigerant flow NOTE Defrosting Mode Timing Chart YES YES Temperature of outdoor heat exchanger coil is blow 8 5 C Temperature of outdoor heat exchanger coil is higher than 5 C Defrosting begins Compressor ON Cold draft prevention Release of defrosting NO NO ON Solenoid coil 4 way valve Compressor Fan motor Outdoor heat 5 C temp 8 5 C Release of defrosting St...

Page 28: ...s can damage it Wait at least three minutes before starting it again CAUTION VENTILATOR lever OPERATION SELECTOR switch MODE selector AUTO DEFLECTOR switch FAN SPEED selector THERMOSTAT knob Unit Display and Control Panel Cooler Warmer Close Open Off On On Low Fan High Fan Off Cool Heat Model SA 123AH ...

Page 29: ...SANYO Electric Co Ltd Osaka Japan SM700511 04 2002 Printed in Japan ...

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