Sanyo SAP-CM1821AHA Technical & Service Manual Download Page 50

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SANYO Electric Co.,Ltd.

Osaka, Japan

700505

04/2002

Summary of Contents for SAP-CM1821AHA

Page 1: ...E NO REFERENCE NO SM700505 Indoor Unit Outdoor Unit MULTI SPLIT SYSTEM AIR CONDITIONER SAP CM1821AHA SAP KM97AHA 2 Destination Australia Indoor Model No Product Code No SAP KM97AHA S 1 852 079 45 Outdoor Model No Product Code No SAP CM1821AHA S 1 852 079 46 ...

Page 2: ...g Be careful when picking up and moving the indoor and outdoor units Get a partner to help and bend your knees when lifting to reduce strain on your back Sharp edges or thin aluminum fins on the air conditioner can cut your fingers When Installing In a Ceiling or Wall Make sure the ceiling wall is strong enough to hold the unit s weight It may be necessary to construct a strong wood or metal frame...

Page 3: ...ter 21 10 FUNCTION 10 1 Room Temperature Control 22 10 2 Dry Operation 24 10 3 Freeze Prevention 25 10 4 Overload Prevention 25 10 5 Cold draft Prevention 26 10 6 Defrosting Operation 27 11 TROUBLESHOOTING 11 1 Check before and after troubleshooting 29 11 2 Air conditioner does not operate 30 11 3 Some part of air conditioner does not operate 34 11 4 Air conditioner operates but abnormalities are ...

Page 4: ...iii Unit Combination Combine indoor and outdoor units only as listed below Indoor Unit Outdoor Unit A B Fig 1 Outdoor Unit Indoor Unit Symbol of Indoor Unit Refer to SAP CM1827AHA KM97 A Fig 1 KM97 B ...

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: ...e control Microprocessor I C thermostat Control unit Wireless remote control unit Timer 1 hour OFF 12 hour ON or OFF Fan speeds Indoor Outdoor 3 and Auto 1 Airflow direction Indoor Horizontal Manual Vertical Auto Air filter Washable Anti Mold Compressor Rotary Hermetic Refrigerant Amount charged at shipment g R22 1 200 Refrigerant control Capillary tube Operation sound Indoor Hi Me Lo dB A 40 34 3...

Page 7: ...Nominal output W 10 Coil resistance Ambient temp 20 C Ω WHT BRN 385 3 WHT VLT 113 6 VLT ORG 37 4 ORG YEL 87 8 YEL PNK 95 8 Safety Type Internal thermal fuse devices Operating temp Open C 145 2 Close Run capacitor µF 1 0 VAC 440 Type Stepping motor Model MP24GA1 Rating DC 12 V Coil resistance Ambient temp 25 C Ω WHT BLU respectively 4 wires 380 7 Coil Aluminum plate fin Copper tube Rows 2 Fin pitch...

Page 8: ...Ambient temp 25 C Trip in 6 to 16 sec at 16 5 A Run capacitor µF 22 5 2 Q ty VAC 400 2 Type Propeller Number Dia mm 1 ø400 Fan motor model Q ty SG6 51B5P 1 No of poles rpm 240 V High 6 920 Nominal output W 50 Coil resistance Ambient temp 20 C Ω WHT BRN 92 1 WHT PNK 196 4 Safety Type Internal protector devices Operating Open C 130 8 temp Close Automatic reclosing Run capacitor µF 2 0 VAC 480 Coil A...

Page 9: ... 10 C 24 4 5 30 C 4 4 5 0 C 15 3 5 40 C 3 0 5 10 C 9 9 5 50 C 2 1 5 Thermistor Room sensor TH2 DTN TKS106E Resistance kΩ 25 C 5 0 3 Outdoor Unit SAP CM1827AHA Power Relay PRA PRB DFU24D1 F M Coil rating DC 24V Coil resistance Ω at 20 C 650 10 Contact rating AC 250V 20A Termistor Coil sensor PBC 41E S15 Resistance kΩ 10 C 23 7 5 25 C 5 3 5 0 C 15 0 5 30 C 4 4 5 10 C 9 7 5 40 C 3 1 5 20 C 6 5 5 Sole...

Page 10: ...DATA Indoor Unit SAP KM97AHA 805 145 130 Center of tubing hole 3 places Drain hose ø18 Narrow tube ø6 35 1 4 Rear panel center point of gravity Wide tube ø9 52 3 8 124 58 42 42 265 Remote control unit 172 61 23 Unit mm ...

Page 11: ...58 95 58 337 307 630 19 Narrow tube service valve ø6 35 1 4 1 Wide tube service valve ø9 52 3 8 2 305 830 4 ø12 holes Air discharge Air intake 538 146 2 Magnified illustration 3 1 To Indoor Unit B To Indoor Unit A 3 Check Port Unit mm ...

Page 12: ...2 58 2 49 2 34 2 15 TC 3 05 2 92 2 78 2 65 2 49 2 29 CM 0 73 0 79 0 85 0 91 1 03 1 16 21 SHC 1 34 1 28 1 23 1 17 1 10 1 02 19 23 SHC 1 57 1 51 1 45 1 39 1 32 1 24 25 SHC 1 79 1 73 1 67 1 62 1 55 1 47 27 SHC 2 01 1 96 1 90 1 84 1 77 1 69 29 SHC 2 24 2 18 2 12 2 06 2 00 1 91 31 SHC 2 46 2 40 2 34 2 29 2 22 2 14 TC 3 23 3 09 2 95 2 81 2 64 2 43 CM 0 76 0 82 0 87 0 94 1 06 1 19 23 SHC 1 32 1 26 1 21 1...

Page 13: ... 4 51 4 15 TC 5 87 5 61 5 36 5 10 4 79 4 41 CM 1 58 1 70 1 82 1 96 2 21 2 47 21 SHC 2 59 2 47 2 36 2 25 2 12 1 97 19 23 SHC 3 03 2 92 2 81 2 70 2 57 2 41 25 SHC 3 48 3 37 3 26 3 15 3 02 2 86 27 SHC 3 93 3 81 3 70 3 59 3 47 3 31 29 SHC 4 37 4 26 4 15 4 04 3 91 3 76 31 SHC 4 82 4 71 4 60 4 49 4 36 4 20 TC 6 22 5 95 5 68 5 41 5 08 4 68 CM 1 62 1 75 1 88 2 01 2 27 2 53 23 SHC 2 54 2 43 2 32 2 22 2 09 ...

Page 14: ...30 40 50 60 70 80 90 100 110 120 Heating capacity ratio NOTE 1 Point of Rating condition Black dot in the chart indicate the following rating condition Indoor 20 C DB Outdoor 7 C DB 6 C WB 2 Above characteristics indicate instantaneous operation which does not take into consideration defrost operation 3 Fan speed High 8 ...

Page 15: ...istance m Vertical distance m Axis air velocity m s Room air temp Fan speed 27 C High Axis air velocity Flap angle 0 30 1 2 3 4 5 6 7 8 9 0 1 2 3 4 Horizontal distance m Vertical distance m Axis air velocity m s Room air temp Fan speed 20 C High Axis air velocity Flap angle 45 60 Heating Cooling ...

Page 16: ... 3 8 Muffler Accumulator Compressor A 4 Way valve 4 Way valve Drier Check valve Strainer Heat exchanger Narrow tube O D 6 35mm 1 4 Wide tube O D 9 52mm 3 8 Muffler Accumulator Compressor B Wide Tube Service valve Narrow Tube Service valve Check valve Strainer Heat exchanger Capillary tube Check port Check port Indoor Unit A Indoor Unit B Drier ...

Page 17: ...to bend it into a narrow curve because it can cause the tube to break or crack IMPORTANT Wide tube Thickness Min 8 mm Insulation Narrow tube Thickness Min 8 mm CAUTION Heat exchanger Narrow tube O D 6 35mm 1 4 Wide tube O D 9 52mm 3 8 Muffler Accumulator Compressor A Capillary tube Check valve Strainer Heat exchanger Narrow tube O D 6 35mm 1 4 Wide tube O D 9 52mm 3 8 Muffler Accumulator Compresso...

Page 18: ...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 Indoor Unit Outdoor Unit Complete Unit Fan Motor Fan Motor Compressor Performance at 240V Single phase 50Hz Rating Conditions Running Amps A 0 15 0 42 4 33 4 9 Power Input kW 0 035 0 092 0 963 1 09 Full Load Conditions Running Amps A 0 15 0 42 5 73 6 3 Power Input kW 0 035 0 092 1 293 1 ...

Page 19: ...ons Indoor Air Temperature 32 C D B 23 C W B Outdoor Air Temperature 43 C D B HEATING Indoor Unit Outdoor Unit Complete Unit Fan Motor Fan Motor Compressor Performance at 240V Single phase 50Hz Rating Conditions Running Amps A 0 30 0 42 8 18 8 9 Power Input kW 0 070 0 092 1 838 2 00 Full Load Conditions Running Amps A 0 30 0 42 10 88 11 6 Power Input kW 0 070 0 092 2 438 2 60 Rating Conditions Ind...

Page 20: ...16 8 2 Electric Wiring Diagram Indoor Unit SAP KM97AHA To avoid electrical shock hazard be sure to disconnect power before checking servicing and or cleaning any electrical parts WARNING ...

Page 21: ...17 Outdoor Unit SAP CM1827AHA To avoid electrical shock hazard be sure to disconnect power before checking servicing and or cleaning any electrical parts WARNING ...

Page 22: ...d Type Wall Mounted Type Front View Fig 2a WARNING Minimum height from floor level 1 5m Indoor Unit Wall Floor level For stable operation of the air conditioner do not install wall mounted type indoor units less than 1 5m from floor level CAUTION Fig 2b 9 1 Installation Site Selection Maximum Allowable Tubing Length L and Elevation Difference H The Multi Split System outdoor unit should be install...

Page 23: ... to reduce humidity and protect the unit against possible water damage and decreased service life Fig 5 use lug bolts or equal to bolt down unit reducing vibra tion and noise Outdoor Unit Outdoor unit Hot air Heat source Exhaust fan Fig 3 Fig 3 Air intake Min 10 cm Air discharge Min 5 cm Min 40 cm Valve side Min 25 cm Top View Air intake Concrete or equal About 10 cm Min 10 cm Anchor bolts 4 pcs A...

Page 24: ...it pull it from the holder When using the remote control unit Point the transmission portion of the remote con trol unit at the receiver area of the indoor unit when operating the remote control unit and dur ing operation of the air conditioner Do not place objects which may block the transmit ted signals between the receiver and the remote control unit When mounting the remote control unit to pre...

Page 25: ...e regula tions when carrying out the installation Table 2 lists recommended wire lengths and size for power supply systems Refer to the WIRING SYSTEM DIAGRAM for the meaning of A B and C in Table 2 NOTE WARNING 9 3 Recommended Wire Length and Diameter WARNING 1 2 4 5 6 7 3 1 2 4 5 6 8 8 7 3 Outdoor unit Terminal 8PA Indoor unit A Terminal 240 V Grounding line Power line Low voltage control line 1 ...

Page 26: ...gerant pressure the control circuit has a built in automatic time delay to allow the internal pressure to equalize As a protective measure the control circuit switches the compressor OFF after 5 minutes or more of compressor operation Thermo ON When the room temperature is above T 1 C T C is set temperature Compressor ON Thermo OFF When the room temperature is equal to or below set temperature T C...

Page 27: ...ective measure the control circuit switches the compressor OFF after 5 minutes or more of compressor operation Thermo ON When the room temperature is below T 1 C T C is set temperature Compressor ON Thermo OFF When the room temperature is equal to or above set temperature T C Compressor OFF 1 Refer to 10 5 Cold Draft Prevention NOTE Set temp Signal from remote control unit Outdoor fan Compressor O...

Page 28: ...en L LL Dry operation does not occur when the room temperature is under 15 C which is the monitor zone When the compressor stops the indoor fan stops as well NOTE Room temp Cooling operation T 2 C Set temp T C T 1 C Monitor zone Both the indoor and outdoor units stop Room temp 15 C Dry A1 zone Compressor FMI indoor fan Continuous operation L low speed LL very low speed intermittent ventilation onl...

Page 29: ...nts overheating of the indoor heat exchange coil When the temperature of the indoor heat exchange coil rises above 54 C and if the indoor fan is L low speed then the fan speed changes from L low speed to M medium speed When the temperature of the indoor heat exchange coil rises above 57 C the outdoor fan stops ON ON OFF ON H or M or L H H M M L M 57 54 47 44 Indoor heat exch coil temp C Outdoor fa...

Page 30: ...w out before the indoor heat exchange coil have sufficiently warmed up STANDBY lamp on front of the indoor unit lights up when the indoor fan speed is either LL or OFF LL Very low speed Initial start Indoor heat exch coil temp C ON Compressor Indoor fan Standby lamp 20 C 25 C 35 C ON ON LL LL Set speed OFF OFF OFF 26 ...

Page 31: ... 6 min or more and repeats 3 times continuously Heating operation 20 minutes masking 6 minutes masking Temperature in outdoor heat exchanger coil falls to 14 C or lower Preparation for defrosting Temperature in outdoor heat exchanger coil is 26 C or higher Defrosting starts Cold draft prevention Defrosting time is over 13 5 minutes Indoor unit A Compressor A Solenoid coil A Split System B Indoor u...

Page 32: ... OFF 30 sec ON ON ON 5 sec 5 sec ON ON ON ON 5 sec ON ON OFF OFF OFF OFF OFF 1 min Defrosting 13 5 min or outdoor coil temp 26 C 65 sec 65 sec ON Standby lamp A Indoor fan A Outdoor fan 4 way valve A and B Compressor A Compressor B OFF NOTE 1 No LL fan operation during this period Release of defrosting Start of defrosting Unit A Unit B Release of cold draft prevention 28 ...

Page 33: ...is being supplied 11 1 4 Check lead wires and connectors in indoor and outdoor units Check that coating of lead wires is not damaged Check that lead wires and connectors are firmly con nected Check that wiring is correct 29 WARNING Hazardous voltage can cause ELECTRIC SHOCK or DEATH Disconnect power or turn off circuit breaker before you start checking or servicing Outdoor unit 1 2 3 Ground Indoor...

Page 34: ...ance of electrical parts in outdoor unit NO NO Set circuit breaker to OFF Measure insulation resistance of electrical parts in indoor unit 1 Remove both power supply wires and inter unit wires from terminal plate in outdoor unit Measure insulation resistance of outdoor unit 2 Remove inter unit wires from terminal plate in indoor unit Measure insulation resistance of indoor unit Insulation of outdo...

Page 35: ...ure Reset breaker Wait for recovery or contact power company YES NO OPERATION selector switch is set in ON position Set OPERATION selector switch to ON Switch Ass y or indoor PCB Ass y is defective OK Try to run with another remote control unit First remote control unit is defective Check for residue buildup on transmitter of remote control unit Check for residue buildup on remote control receiver...

Page 36: ...ion lamp to see if light is ON Light is OFF Measure resistance of primary and secondary winding of transformer TR Indoor PCB Ass y or switch Ass y is defective OK Measure resistance of indoor fan motor winding FMI Measure resistance of flap motor winding FLP If fuse has been blown Timer is turned ON Check to see if is displayed on remote control YES Cancel the timer mode ON 32 ...

Page 37: ...run Remote control unit is defective Try to run using another remote control unit COOL OK NO Is room temperature too high Try to raise setting temperature by temperature setting button warmer Outdoor unit still does not run Remote control unit is defective Try to run using another remote control unit HEAT Indoor PCB Ass y is defective Check voltage between terminals No 3 and No 4 at terminal plate...

Page 38: ...nout or foreign matter in bearings Remove foreign matter or repair Repair or replace Measure resistance of indoor fan motor winding Check fan motor capacitor Fan cannot be turned Check fan casing for foreign matter on inside Check fan rotation Turn fan gently once or twice by hand Measure resistance of outdoor fan motor winding OK Fan motor burnout or foreign matter in bearings Repair or replace R...

Page 39: ... motor winding NO Check compressor motor capacitor YES YES YES Overload relay is working Refrigerant gas shortage Charge refrigerant gas R22 Temperature of compressor is abnormally high Rotor may be locked up OLR 1 to 4 CA CB Measure coil resistance of power relay PRA PRB ...

Page 40: ... will switch to cooling or drying operation Example Unit A in heating mode Unit B in cooling or drying mode Unit A in heating mode Heating operation takes precedence Unit B fan operating If the units are operated in different modes for example unit A in the heating mode and unit B in the cooling or drying mode the results are as follows Units A and B cannot be operated in different modes simultane...

Page 41: ...nsulate both wide and narrow tubes separately and then tape together 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 either HIGH or MEDIUM Review cooling load estimate if performance of air conditioner is normal Reduce cooling or heating load or replace the air cond...

Page 42: ... high room temperature a In Cooling mode The air conditioner continues to operate Thermo ON Both the outdoor fan and compressor do not stop As a result the room becomes too cold b In Heating mode The air conditioner soon stops and will not start again Thermo OFF Neither outdoor fan nor compressor runs Definition of Open or Short Circuit of Sensor Thermistor Open A lead wire is broken or disconnect...

Page 43: ...ANGEMENT OF ELECTRICAL COMPONENT Room temp thermistor TH2 Fan motor capacitor C Transformer TR Terminal plate PCB Ass y Switch Ass y Flap motor FLP Coil temp thermistor TH1 Electric Parts Indoor Unit SAP KM97AHA ...

Page 44: ...lay OLR1 Power relay B PRB Power relay A PRA Terminal Plate To Power supply Terminal Plate To Indoor Unit B Terminal Plate To Indoor Unit A Varistor SA2 Compressor A CMA Compressor B CMB Solenoid coil A SCA Solenoid coil B SCB Fan motor Heat exchenger coil PCB Ass y Controller Electric Parts Parts Layout in Unit Thermistor Outdoor Unit SAP CM1827AHA ...

Page 45: ...p a metallic part of the unit with the lead clip of the insulation resistance tester and measure the resistance by placing a probe on each terminal screw where power supply lines are connected on the terminal plate Fig 2 13 1 4 Measurement of Insulation Resistance for Electrical Parts Disconnect the lead wires of the desired electric part from terminal plate capacitor etc Similarly disconnect the ...

Page 46: ...nd then place a probe on the capacitor terminals as shown in Fig 7 Observe the deflection of the pointer setting the resistance measuring range of the multimeter to the maximum value The capacitor is good if the pointer bounces to a great extent and then gradually returns to its original position The range of deflection and deflection time differ accord ing to the capacity of the capacitor Compres...

Page 47: ...e same room To Change Address on PCB Ass y 1 Locate the address switch S10 on the control PCB Ass y of indoor unit 2 Change the switch to ON position To Change Address on Remote Control Unit Address switch on the remote control unit is in A position at time of shipment NOTE ACL button 3 When it is removed the address is auto matically set to B 4 After inserting the bat teries press ACL but ton 1 R...

Page 48: ...iver Operation selector OPERATION STANDBY TIMER ON OFF TEST Sensor 1 HR TIMER button MODE selector button FLAP button TIMER ON button ADDRESS switch ON OFF operation button Transmitter Cover closed Temperature setting buttons TEMP NIGHT SETBACK button FAN SPEED selector button TIMER OFF button ACL button A C SENSOR button Battery compartment Pull off the cover to expose the batteries TIMER SET but...

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Page 50: ...SANYO Electric Co Ltd Osaka Japan SM700505 04 2002 ...

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