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10-5. If a sensor is defective.

10-5-1. Indoor coil temp. thermistor (TH1) is defective.

Alarm Signal (*)

Operation lamp on the front side of the indoor unit will flash on and off when the indoor coil thermistor is defective.

At the same time the outdoor unit will stop. Indoor unit will operate only for ventilation.

10-5-2. Room temp. thermistor (TH2) is defective.

A. Open

When thermistor opens, the air conditioner will be in the following conditions as the controller tries to detect

extremely low room temperature.

In Cooling mode : The air conditioner soon stops and will not start again. (Thermo.OFF)

Neither outdoor fan nor compressor runs.

B. Short

When thermistor is short, the air conditioner will be in the following conditions as the controller tries to detect

extremely high room temperature.

In Cooling mode : The air conditioner continues to operate. (Thermo.ON) Both the outdoor fan and com-

pressor do not stop.

As a result, the room becomes too cold.

Definition of Open or Short Circuit of Sensor (Thermistor)

Open... A lead wire is broken or disconnected or the circuit inside the temperature sen-

sor is open .

Short... The protective cover of a lead wire has been damaged, and the exposed wire is

touching another metal part, or both lead wires have become exposed and are

touching each other. Alternatively, the circuit inside the temperature sensor is

closed.

NOTE

• Operation lamp on front side of

indoor unit is flashing on and off. (*)

YES

• Replace thermistor.

• Thermistor (TH1 ) is defective.

(That is, sensor is SHORT.)

YES

Temperature
sensor

Lead
wires

Thermistor Structure

Содержание SAP-CM1821A

Страница 1: ...FILE NO REFERENCE NO SM700428 Indoor Unit Outdoor Unit MULTI SPLIT SYSTEM AIR CONDITIONER SAP CM1821A SAP K91A 2 Indoor Model No Product Code No SAP K91A S 1 852 063 35 Outdoor Model No Product Code No SAP CM1821A S 1 852 068 10 Destination Australia ...

Страница 2: ......

Страница 3: ...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...

Страница 4: ...t Installation Position 17 8 3 Recommended Wire Length and Diameter 18 9 FUNCTION 9 1 Room Temperature Control 19 9 2 Dry Operation 20 9 3 Freeze Prevention 20 10 TROUBLESHOOTING 10 1 Check before and after troubleshooting 21 10 2 Air conditioner does not operate 22 10 3 Some part of air conditioner does not operate 27 10 4 Air conditioner operates but abnormalities are observed 29 10 5 If a senso...

Страница 5: ...iii Unit Combination Combine indoor and outdoor units only as listed below Indoor Unit Outdoor Unit A B Fig 1 Refer to Outdoor Unit Symbol of Indoor Unit Indoor Unit SAP CM1821A K91A A Fig 1 K91A B ...

Страница 6: ...1 1 OPERATING RANGE 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 ...

Страница 7: ...2 hour ON or OFF Fan speeds Indoor Outdoor 3 and Auto 1 Hi Airflow direction Indoor Horizontal Manual Vertical Auto Air filter Washable Anti Mold Compressor Rotary Hermetic Refrigerant Amount charged at shipment g R22 1 260 630 2 Refrigerant control Capillary tube Operation sound Indoor Hi Me Lo dB A 39 37 33 Outdoor Hi dB A 53 Refrigerant tubing connections Flare type Max allowable tubing length ...

Страница 8: ...290 Nominal output W 20 Coil resistance Ambient temp 20 C Ω WHT BRN 449 4 WHT VLT 126 4 VLT ORG 92 4 ORG YEL 136 1 YEL PNK 92 5 Safety Type Internal fuse devices Operating temp Open C 145 2 Close Run capacitor µF 1 0 VAC 440 Type Stepping motor Model MP24S2 12V Rating DC 12 V Coil resistance Ambient temp 25 C Ω A pair of each terminal 380 7 Coil Aluminum plate fin Copper tube Rows 2 Fin pitch mm 1...

Страница 9: ...5 5 Operating amp Ambient temp 25 C Trip in 6 to 16 sec at 16A Run capacitor Number µF 30 0 2 VAC 400 2 Type Propeller Number Dia mm 1 ø420 Fan motor model Number KFG6 51C5P S 1 No of poles rpm 240 V 6 870 Nominal output W 50 Coil resistance Ambient temp 20 C Ω WHT BRN 67 1 WHT PNK 83 8 Safety Type Internal protector devices Operating temp Open C 130 5 Close Automatic reclosing Run capacitor µF 4 ...

Страница 10: ... Outdoor Unit SAP CM1821A Thermistor Room sensor DTN TKS128B Resistance kΩ 25 C 5 0 3 Thermistor Coil sensor DTN TKS131B Resistance kΩ 0 C 15 0 2 Transformer TR ATR J105 Rating Primary AC 230V 50 60Hz Secondary 19V 0 526A Capacity 10VA Coil resistance Ω at 21 C Primary WHT WHT 205 10 Secondary BRN BRN 2 0 10 Thermal cut off temp 150 C Indoor Unit SAP K91A ...

Страница 11: ...6 3 DIMENSIONAL DATA Indoor Unit SAP K91A 790 250 174 3 Narrow tube ø6 35 1 4 Wide tube ø9 52 3 8 Drain hose ø18 58 5 132 41 0 41 0 Center of tubing hole 2 places 18 5 57 161 Remote control unit Unit mm ...

Страница 12: ...7 Outdoor Unit SAP CM1821A 810 15 538 AIR INTAKE AIR DISCHARGE 136 140 302 630 22 5 275 98 45 45 45 325 Narrow tube service valve ø6 35 1 4 Wide tube service valve ø9 52 3 8 2 1 1 2 Unit mm ...

Страница 13: ...50 2 35 2 16 CM 0 77 0 83 0 89 0 95 1 01 1 06 21 SHC 1 26 1 21 1 15 1 10 1 03 0 96 19 23 SHC 1 47 1 42 1 36 1 31 1 24 1 17 25 SHC 1 68 1 63 1 57 1 52 1 45 1 38 27 SHC 1 89 1 84 1 78 1 73 1 66 1 59 29 SHC 2 10 2 05 1 99 1 94 1 87 1 80 31 SHC 2 31 2 26 2 20 2 15 2 08 2 01 TC 3 05 2 92 2 78 2 65 2 49 2 29 CM 0 79 0 85 0 91 0 98 1 04 1 09 23 SHC 1 24 1 19 1 13 1 08 1 02 0 94 21 25 SHC 1 45 1 40 1 34 1...

Страница 14: ... 33 CM 1 55 1 67 1 79 1 92 2 03 2 14 21 SHC 2 53 2 42 2 31 2 20 2 07 1 91 19 23 SHC 2 95 2 84 2 73 2 62 2 49 2 33 25 SHC 3 37 3 26 3 14 3 04 2 91 2 75 27 SHC 3 79 3 67 3 56 3 46 3 33 3 17 29 SHC 4 21 4 09 3 98 3 88 3 75 3 59 31 SHC 4 63 4 51 4 40 4 29 4 17 4 01 TC 6 10 5 83 5 57 5 30 4 98 4 58 CM 1 59 1 72 1 84 1 97 2 09 2 20 23 SHC 2 49 2 38 2 27 2 16 2 04 1 88 21 25 SHC 2 91 2 80 2 69 2 58 2 46 ...

Страница 15: ...HART Horizontal distance m Axis air velocity m s Vertical distance m Room air temp 27 C Fan speed High 0 1 2 3 4 0 1 2 3 4 5 6 7 8 9 Flap angle 0 Axis air velocity 0 Flap angle 30 Axis air velocity 30 10 Indoor Unit SAP K91A ...

Страница 16: ...proper insula tion material The thickness of the insulation should be a min 8 mm After a tube has been insulated never try 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 Outdoor Unit Wide tube O D ø9 52mm 3 8 Narrow tube O D ø6 35 mm 1 4 Condenser Wide tube service valve Compres...

Страница 17: ... 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 Indoor Unit SAP K91A 2 Outdoor Unit SAP CM1821A Indoor Unit Outdoor Unit Complete Unit Fan Motor Fan Motor Compressor Performance at 240V Single phase 50Hz Rating Conditions Running Amps A 0 18 0 50 4 32 5 0 Power Input kW 0 040 0 119 0 951 1 11 Full Load Conditions Running Amps A 0 18 0 50 5 1...

Страница 18: ...13 7 2 Electric Wiring Diagram Indoor Unit SAP K91A To avoid electrical shock hazard be sure to disconnect power before checking servicing and or cleaning any electrical parts WARNING ...

Страница 19: ...14 Outdoor Unit SAP CM1821A To avoid electrical shock hazard be sure to disconnect power before checking servicing and or cleaning any electrical parts WARNING ...

Страница 20: ...UNIT Front View Wall mounted 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 under 1 5m from floor level CAUTION Fig 2b 8 1 Installation Site Selection Maximum Allowable Tubing Length L and Elevation Difference H The Multi Split System outdoor...

Страница 21: ...to reduce humidity and protect the unit against possible water damage and decreased service life Fig 5a 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...

Страница 22: ...at position 3 After confirming correct operation use a screw driver to screw the supplied special mounting screw into the wall Fig 6a 4 Hang the remote control unit from the mounting screw b Non removable mounting 1 Momentarily hold the remote control unit at the desired mounting position 2 Confirm that the air conditioner responds correctly when you press keys on the remote control from that posi...

Страница 23: ... field wiring requirements please refer to your local electrical codes Carefully observe these 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 and B in Table 2 NOTE 18 WARNING 8 3 Recommended Wire Length and Diameter WARNING AWG American Wire Gauge Table 2 A Power Supply...

Страница 24: ...t pres sure 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 Com...

Страница 25: ...utes L low speed LL very low speed intermittent ventilation only while the compressor is ON Intermittent ventilation occurs by switching the indoor fan speed between 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 ON ON ON ON OFF OFF Set speed More than 10 minutes 6 minutes T 1 C door heat ex...

Страница 26: ...specified range 10 of the rating Check that power is being supplied 10 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 21 WARNING Hazardous voltage can cause ELECTRIC SHOCK or DEATH Disconnect power or turn off circuit breaker before you start chec...

Страница 27: ... 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 outdoor unit is defective Insulation of indoor unit is ...

Страница 28: ...tioner on There is a possibility of short circuit Replace with suitable one larger capacity NO Check capacity of circuit breaker Capacity of circuit breaker is suitable Measure resistance of outdoor fan motor winding Measure resistance of compressor motor winding CMA and CMB ...

Страница 29: ...ecovery 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 Refer to Step C below Clean transmitter 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 cont...

Страница 30: ...stance of primary and secondary winding of transformer TR Indoor PCB Ass y or switch Ass y is defective OK OK Measure resistance of indoor fan motor winding FM Measure resistance of flap motor winding FLP OK Measure coil resistance of power relay in outdoor unit PRA PRB Replace the fuse If fuse has been blown Timer is turned ON Check to see if is displayed on remote control YES Cancel the timer mo...

Страница 31: ...door unit OK NO Is room temperature too low Try to lower setting temperature by temperature setting button cooler Outdoor unit still does not run Remote control unit is defective Try to run using another remote control unit OK Measure coil resistance of power relay Check indoor PCB Ass y PRA PRB ...

Страница 32: ...or burnout 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 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 resista...

Страница 33: ...re resistance of compressor motor winding NO YES YES Overload relay is working OLR 1 to 4 YES Temperature of compressor is abnormally high Refrigerant gas shortage Charge refrigerant gas R22 Rotor may be locked up C2 C3 Measure Power supply voltage The voltage is too low No Measure resistance of flap motor winding ...

Страница 34: ...door unit are insulated Insulate 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 load or replac...

Страница 35: ...nditioner will be in the following conditions as the controller tries to detect extremely high room temperature In Cooling mode The air conditioner continues to operate Thermo ON Both the outdoor fan and com pressor do not stop As a result the room becomes too cold Definition of Open or Short Circuit of Sensor Thermistor Open A lead wire is broken or disconnected or the circuit inside the temperat...

Страница 36: ...11 ARRANGEMENT OF ELECTRICAL COMPONENT 31 Outdoor Unit SAP CM1821A Compressor A CMA Compressor B CMB Fan motor Heat exchenger coil Parts Layout in Unit ...

Страница 37: ... 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 12 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 con...

Страница 38: ...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...

Страница 39: ...INSTRUCTION MANUAL SAP K91A 2 SAP CM1821A 852 6 4180 226 00 0 APPENDIX 34 ...

Страница 40: ...iod 1 Hour OFF Timer This timer can be set to automatically turn off the unit at any time after one hour Night Setback Pressing this button changes the setting of the room temperature thermostat allowing you to set the temperature at whatever level that you find comfortable Automatic and 3 step Fan Speed Auto High Medium Low Air Sweep Control This function moves a flap up and down in the air outle...

Страница 41: ...eshooting 23 Tips for Energy Saving 23 Product Information If you have problems or questions concerning your Air Conditioner you will need the following information Model and serial numbers are on the nameplate on the bottom of the cabinet Model No Serial No Date of purchase Dealer s address Phone number Alert Symbols The following symbols used in this manual alert you to potentially dangerous con...

Страница 42: ...ugh the supply wiring 3 Wiring must be done by a qualified electrician Safety Instructions Read this Instruction Manual carefully before using this air conditioner If you still have any difficulties or problems consult your dealer for help This air conditioner is designed to give you comfortable room conditions Use this only for its intended purpose as described in this Instruction Manual Never us...

Страница 43: ...wn out of the air conditioner through the air outlet Remote Control Unit The wireless remote control unit controls power on off operation mode selection temperature fan speed timer setting and air sweeping Refrigerant Tubes The indoor and outdoor units are connected by copper tubes through which refrigerant gas flows Drain Hose Moisture in the room condenses and drains off through this hose Outdoo...

Страница 44: ...Use the main power switch to turn off power completely TEST position This position is used only when servicing the air conditioner CAUTION Do not set at the TEST position for normal operation OPERATION lamp This lamp lights when the system is in the continuous DRY or COOL mode TIMER lamp This lamp lights when the system is being controlled by the timer OPERATION lamp TIMER lamp Operation selector ...

Страница 45: ...r OFF Timer 1 hour OFF Timer 5 NIGHT SETBACK 6 Confirmation of transmission 7 Flap angle indication 8 Sweep indication ON Displayed when transmitting data Displayed when setting temperature Displayed when temperature is shown Displayed when the temperature setting is at the upper or lower allowable limit Displayed when setting timer C OFF 1HR Symbols Displayed when main unit sensor is in use 7 OI ...

Страница 46: ...RY or COOL mode the mark appears in the display and the remote control unit will automatically adjust the set temperature to save energy TEMP setting buttons Press the button to increase the set temperature Press the button to reduce the set temperature ON OFF operation button This button is for turning the air conditioner on and off AIR CONDITIONER Transmitter Display ON OFF operation button FLAP...

Страница 47: ...rdless of whether the unit is operating or stopping the unit operates for one hour and then shuts down ACL button ALL CLEAR Puts the remote control unit into pre operation status Always press this button after replacing the batteries A C SENSOR button When you press this button use a small tipped object such as a ballpoint pen the mark will appear at the display And the room temperature is detecte...

Страница 48: ...than 1 month take out the batteries How to Use the Remote Control Unit When using the remote control unit always point the unit s transmitter head directly at the air conditioner s receiver Remote Control Unit Installation Position The remote control unit may be operated either from a non fixed position or from a wall mounted position To ensure that the air conditioner operates correctly DO NOT in...

Страница 49: ...nting 1 Momentarily hold the remote control unit at the desired mounting position 2 Confirm that the air conditioner responds correctly when you press keys on the remote control from that position 3 After confirming correct operation use a screwdriver to screw the mounting screw into the wall 4 Remove the batteries of the remote control unit 5 Use a screwdriver to screw the remote control unit sec...

Страница 50: ...the temperature setting to the desired temperature Adjustable temperature range 30 C max 16 C min STEP 4 Set the FAN SPEED selector button to the setting you want NOTE If the fan speed is set to Automatic the fan speed switches automatically according to the difference between the actual room temperature and the temperature setting STEP 5 Press the FLAP button and set the airflow direction as desi...

Страница 51: ...e position A microcomputer in the air conditioner automatically controls the fan speed when the mode is selected When the air conditioner starts operating the difference between the room temperature and the set temperature is detected by the microcomputer which then automatically switches the fan speed to the most suitable level Cooling and DRY mode When difference between room temperature and set...

Страница 52: ...ON OFF SET NIGHT SETBACK SET TEMP C ACL When the night setback mode is selected the air conditioner automatically raises the temperature setting 1 C when 30 minutes have passed after the selection was made and then another 1 C after another 30 minutes have passed regardless of the indoor temperature when night setback was selected This enables you to save energy without sacrificing comfort This fu...

Страница 53: ...emperature is 15 C or less Power failure during operation In the event of power failure the unit will stop When the power is resumed the unit will restart automatically after three minutes Clicking Sound Clicking sound is heard from the air conditioner In cooling operation any plastic parts may expand or shrink due to a sudden temperature change In this event a clicking sound may occur This is nor...

Страница 54: ...is counting down press the TIMER SET button Cancellation procedure Press the TIMER ON button once again 2 TIMER OFF mode Example After the length of time set for TIMER OFF elapses the unit stops operating OFF H The display depicted at left indicates that the air conditioner will stop operating in five hours Setting procedure STEP 1 Press the TIMER OFF button STEP 2 Press the TIMER SET button which...

Страница 55: ...g page to set the timer to turn the unit off five hours from now The display changes immediately to its status previous to timer setting but the or indication remains Press the TIMER SET button to display the time remaining on the timer in seconds Note that it is not possible to check both the ON and OFF timer settings The timer setting that will occur first is given preference and displayed The t...

Страница 56: ...nd then stops If the 1 HR TIMER button is pressed while the TIMER OFF function operates the OFF Timer is cancelled and the unit will stop operating one hour later 2 Combining the 1 Hour OFF Timer and 12 Hour ON Timer By combining the 1 Hour OFF Timer and 12 Hour ON Timer it is possible to have the unit operate for just one hour from the present time and then have it switch on again later at a time...

Страница 57: ...on B Setting the Airflow Manually The flap starts moving up and down to deliver air over the sweep range Referring to the above illustration use the FLAP button to set the airflow direction within the range used during the cooling or dehumidifying operation NOTE The flap automatically closes when the unit is off CAUTION Use the FLAP button on the remote control to adjust the position of the flap I...

Страница 58: ...afety be sure to turn the air conditioner off and also to disconnect the power before cleaning 2 Do not pour water on the indoor unit to clean it This will damage the internal components and cause an electric shock hazard Casing and Grille Indoor Unit Clean the casing and grille of the indoor unit with a vacuum cleaner brush or wipe them with a clean soft cloth If these parts are stained use a cle...

Страница 59: ...cleaner to remove light dust If there is sticky dust on the filter wash the filter in lukewarm soapy water rinse it in clean water and dry it How to replace the anti mold filter 1 With the FRONT mark facing you slide the anti mold filter up into the unit and then lower the handle into the groove on the unit 2 After installing the anti mold filter press the locations marked by the arrows and close ...

Страница 60: ...ing filter in the position shown in the diagram with the symbols meaning FRONT facing the front 3 Reinstall the anti mold filter Cleaning the main unit and remote control unit Wipe clean using a soft dry cloth To remove stubborn dirt moisten a cloth in warm water no hotter than 40 C wring thoroughly and then wipe The air intake grille can be removed in order to wash it with water Removing and remo...

Страница 61: ...t 4 Obstacle near air intake or air discharge port 4 Remove it to ensure good airflow 5 Thermostat is set too high for cooling 5 Set the temperature lower Clicking sound is heard from the air conditioner During cooling operation plastic parts may shrink due to sudden temperature change In this event a clicking sound may occur This is normal and the sound will soon disappear OPERATION lamp lights b...

Страница 62: ...SANYO Electric Co Ltd Osaka Japan SM700428 12 99 200 Printed in Japan ...

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