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Sanyo SAP–K91A Technical & Service Manual

Multi-split system air conditioner
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TECHNICAL & SERVICE MANUAL
SAP – K91A ( 2 ) + SAP – CM1821A
FILE NO.
Destination : Australia
MULTI-SPLIT SYSTEM AIR CONDITIONER
Outdoor Model No.
Product Code No.
Indoor Model No
Product Code No.
SAP – CM1821A– S
1 852 068 10
SAP – K91A– S
1 852 063 35
Indoor Unit
Outdoor Unit
SAP–CM1821A
SAP–K91A ( 2)
SM
700428
REFERENCE NO.

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Summary of Contents for Sanyo SAP–K91A

  • Page 1 TECHNICAL & SERVICE MANUAL SAP – K91A ( 2 ) + SAP – CM1821A FILE NO. Destination : Australia MULTI-SPLIT SYSTEM AIR CONDITIONER Outdoor Model No. Product Code No. Indoor Model No Product Code No. SAP – CM1821A– S 1 852 068 10 SAP –...
  • Page 3 IMPORTANT! Please Read Before Starting When Installing… This air conditioning system meets strict safety and operat- ing standards. As the installer or service person, it is an …In a Ceiling or Wall important part of your job to install or service the system Make sure the ceiling/wall is strong enough to hold the so it operates safely and efficiently.

  • Page 4: Table Of Contents

    Table of Contents Page Unit Combination............................ iii 1. OPERATING RANGE ..........................1 2. SPECIFICATIONS 2-1. Unit Specifications .......................... 2 2-2. Major Component Specifications....................3 2-3. Other Component Specifications....................5 3. DIMENSIONAL DATA..........................6 4. COOLING CAPACITY ..........................8 5. AIR THROW DISTANCE CHART ......................10 6.

  • Page 5: Unit Combination

    Unit Combination Combine indoor and outdoor units only as listed below. Symbol of Outdoor Unit Indoor Unit Refer to Indoor Unit K91A SAP – CM1821A Fig.1 K91A Indoor Unit Outdoor Unit Fig.1...

  • Page 6: Operating Range

    1. OPERATING RANGE Temperature Indoor Air Intake Temp. Outdoor Air Intake Temp. Maximum 32°C D.B. / 23°C W.B. 43°C D.B. Cooling Minimum 19°C D.B. / 14°C W.B. 19°C D.B.

  • Page 7: Specifications

    2. SPECIFICATIONS 2-1. Unit Specifications Indoor Unit SAP – K91A Outdoor Unit SAP – CM1821A No. of indoor units. 1-unit 2-units Power Source 240V Single phase 50 Hz Cooling Capacity 2.50 5.00 BTU/h 8,500 17,100 m 3 /h Air circulation (High) 430 2 Moisture removal (High) Liters/h...

  • Page 8: Major Component Specifications

    2-2. Major Component Specifications Indoor Unit SAP – K91A Part No. POW – K91G Controls Microprocessor Control circuit fuse 250 V – 3.15 A Remote Control Unit RCS – 7S3E Type Cross – flow Number ... Dia. and length 1 ... ø95 / L578 Fan motor model ...
  • Page 9 Outdoor Unit SAP – CM1821A Type Rotary (Hermetic) Compressor model ... Number C – 1R80H5K ... 2 / 80603345– S ... 2 Nominal output Compressor oil ... Amount SUNISO 4GSD – T ... 320 2 Ω Coil resistance (Ambient temp. 25°C) C –...

  • Page 10: Other Component Specifications

    2-3. Other Component Specifications Indoor Unit SAP – K91A Transformer (TR) ATR-J105 Rating Primary AC 230V, 50 / 60 Hz Secondary 19V, 0.526A Capacity 10VA Ω (at 21°C) Coil resistance Primary (WHT – WHT): 205 ± 10% Secondary (BRN – BRN): 2.0 ±...

  • Page 11: Dimensional Data

    3. DIMENSIONAL DATA Indoor Unit SAP – K91A Remote control unit 18.5 58.5 Center of tubing hole (2 places) Drain hose ø18 Narrow tube ø6.35 (1/4") Wide tube ø9.52 (3/8") Unit : mm...
  • Page 12 Outdoor Unit SAP – CM1821A AIR INTAKE AIR DISCHARGE Wide tube service valve ø9.52 (3/8") Narrow tube service valve ø6.35 (1/4") Unit : mm...

  • Page 13: Cooling Capacity

    4. COOLING CAPACITY 1 - indoor unit in operation Indoor Unit SAP – K91A ( 1) Outdoor Unit SAP – CM1821A 240V Single phase 50Hz RATING CAPACITY 2.50 kW EVAPORATOR CONDENSER ENT. TEMP. °C OUTDOOR AMBIENT TEMP. °C W.B. D.B. 2.52 2.41 2.30...
  • Page 14 2 - indoor units in operation Indoor Unit SAP – K91A ( 2) Outdoor Unit SAP – CM1821A 240V Single phase 50Hz RATING CAPACITY 5.00 kW EVAPORATOR CONDENSER ENT. TEMP. °C OUTDOOR AMBIENT TEMP. °C W.B. D.B. 5.04 4.82 4.60 4.38 4.11 3.79...

  • Page 15: Air Throw Distance Chart

    5. AIR THROW DISTANCE CHART Indoor Unit SAP – K91A Room air temp. : 27°C Fan speed High Horizontal distance (m) : Flap angle 0° , : Axis air velocity 0° : Flap angle 30°, : Axis air velocity 30°...

  • Page 16: Refrigerant Flow Diagram

    6. REFRIGERANT FLOW DIAGRAM Indoor Unit SAP – K91A Outdoor Unit SAP – CM1821A Outdoor Unit Indoor Unit A Accumulator Wide tube O.D. ø9.52mm Accumulator (3/8 ") Wide tube service valve Indoor Unit B Narrow tube Narrow tube service O.D. valve ø6.35 mm (1/4")

  • Page 17: Electrical Data

    7. ELECTRICAL DATA 7-1. Electrical Characteristics 1 - indoor unit in operation Indoor Unit SAP – K91A ( 1) 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.

  • Page 18: Electric Wiring Diagrams

    7-2. Electric Wiring Diagram To avoid electrical shock hazard, be sure to disconnect power before checking, servicing WARNING and/or cleaning any electrical parts. Indoor Unit SAP – K91A...
  • Page 19 To avoid electrical shock hazard, be sure to disconnect power before checking, servicing WARNING and/or cleaning any electrical parts. Outdoor Unit SAP – CM1821A...

  • Page 20: Installation Instructions

    8. INSTALLATION INSTRUCTIONS           8-1. Installation Site Selection Tubing length (L) INDOOR Maximum Allowable Tubing Length(L)and Elevation UNIT Difference(H). Less than elevation The Multi-Split System outdoor unit should be installed as difference (H) between OUTDOOR close to the indoor units as possible.
  • Page 21 Outdoor Unit AVOID: heat sources, exhaust fans, etc. (Fig. 3) damp, humid or uneven locations. Exhaust fan Hot air Heat source choose a place as cool as possible. Outdoor unit choose a place that is well ventilated. allow enough room around the unit for air intake/exhaust and possible maintenance.

  • Page 22: Remote Control Unit Installation Position

    8-2. Remote Control Unit Installation Position The remote control unit can be operated from either a Removable mounting non-fixed position or a wall-mounted position. Wall To ensure that the air conditioner operates correctly, do not install the remote control unit in the following places: In direct sunlight Behind a curtain or other place where it is covered Special...

  • Page 23: Recommended Wire Length And Diameter

    8-3. Recommended Wire Length and Diameter Regulations on wiring diameter differ from locality to locality. For 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.

  • Page 24: Function

    9. FUNCTION 9-1. Room Temperature Control Room temperature control is obtained by cycling the compressor ON and OFF under control of the room tem- perature sensor in the remote control unit. The room temperature (and other information) is transmitted every 3 minutes by the remote control unit to the controller in the indoor unit.

  • Page 25: Dry Operation

    9-2. Dry Operation (Dehumidification) Dry operation uses the ability of the cooling cycle to remove moisture from the air, but by running at low level to dehumidify without greatly reducing the room temperature. The air conditioner repeats the cycle of turning ON and OFF automatically as shown in the chart below according to the room temperature.

  • Page 26: Troubleshooting

    10. TROUBLESHOOTING 10-1. Check before and after troubleshooting WARNING Hazardous voltage can cause ELECTRIC SHOCK or DEATH. Disconnect power or turn off circuit breaker before you start checking or servicing. 10-1-1. Check power supply wiring. Outdoor unit Check that power supply wires are correctly connect- Power supply: ed to terminals No.1 and No.2 on the terminal plate in 50Hz...

  • Page 27: Air Conditioner Does Not Operate

    10-2. Air conditioner does not operate. 10-2-1. Circuit breaker trips (or fuse blows). A. When the circuit breaker is set to ON, it is tripped soon. (Resetting is not possible.) There is a possibility of ground fault. Check insulation resistance. If resistance value is 2MΩ...
  • Page 28 B.Circuit breaker trips in several minutes after turning the air conditioner on. There is a possibility of short circuit. • Check capacity of circuit breaker. Replace with suitable one (larger capacity). Capacity of circuit breaker is suitable. Measure resistance of outdoor fan •...
  • Page 29 10-2-2. Neither indoor nor outdoor unit runs. A. Power is not supplied. Circuit breaker Reset breaker. is tripped. • Check power supply. Power is being supplied to the Wait for recovery outdoor unit. Power failure or contact power company. B. Check remote control unit. Does not run.
  • Page 30 E. Check fuse on the indoor PCB Ass'y. • Measure resistance of indoor fan If fuse has been blown, • Check fuse on indoor PCB Ass'y motor winding. for continuity. (FM) • Check operation lamp to see • Measure resistance of flap motor if light is ON.
  • Page 31 10-2-3. Only outdoor unit does not run. A. Check setting temperature. Is room temperature too low ? Try to lower setting temperature by temperature setting button cooler. Outdoor unit still does not run. • Try to run using another remote control unit.

  • Page 32: Some Part Of Air Conditioner Does Not Operate

    10-3. Some part of air conditioner does not operate. 10-3-1. Only indoor fan does not run. • Check fan casing Remove foreign foreign matter on matter or repair. Fan cannot inside. be turned. • Check fan rotation. Turn fan gently once or twice by hand.
  • Page 33 10-3-3. Only compressor does not run. • Check compressor moter Overload relay is working. (OLR 1 to 4) capacitor. (C2, C3) • Measure resistance of Temperature of compressor is abnormally high. compressor motor winding. Refrigerant gas shortage. Charge refrigerant gas (R22). •...

  • Page 34: Air Conditioner Operates, But Abnormalities Are Observed

    10-4. Air conditioner operates, but abnormalities are observed. 10-4-1. Poor cooling. • Check position of remote control unit. Change position of remote • Cool air from air conditioner reaches control unit. position directly. • Wide and narrow tubes between Insulate both wide and narrow indoor unit and outdoor unit are tubes separately and then insulated.

  • Page 35: If A Sensor Is Defective

    10-5. If a sensor is defective. 10-5-1. Indoor coil temp. thermistor (TH1) is defective. • Operation lamp on front side of • Thermistor (TH1 ) is defective. indoor unit is flashing on and off. (*) (That is, sensor is SHORT.) •...

  • Page 36: Arrangement Of Electrical Component

    11. ARRANGEMENT OF ELECTRICAL COMPONENT Outdoor Unit SAP – CM1821A Parts Layout in Unit Heat exchenger coil Compressor A (CMA) Compressor B (CMB) Fan motor...

  • Page 37: Checking Electrical Components

    12. CHECKING ELECTRICAL COMPONENTS 12-1. Measurement of Insulation Ground wire Resistance Clip The insulation is in good condition if the resistance exceeds 2MΩ. 12-1-1. Power Supply Wires Probe Clamp the ground wire of the power supply wires with Insulation Fig. 1 the lead clip of the insulation resistance tester and mea- tester sure the resistance by placing a probe on either of the...

  • Page 38: Checking Continuity Of Fuse On Pcb Ass'y

    12-2. Checking Continuity of Fuse on PCB Ass'y Fuse Remove the PCB Ass'y from the electrical component box. Then pull out the fuse from the PCB Ass'y. Check for continuity using a multimeter as shown in Fig. 6. PCB Ass’y Fig.

  • Page 39: Appendix Instruction Manual

    APPENDIX INSTRUCTION MANUAL SAP – K91A ( 2) + SAP – CM1821A (852-6-4180-226-00-0)
  • Page 40 Features This air conditioner is equipped with cooling and drying functions. Details on these functions are provided below; refer to these descriptions when using the air conditioner. Compact Size Automatic and 3-step Fan Speed • • This model is smaller than its predecessors Auto/High/Medium/Low and yet offers the same capabilities.
  • Page 41 Contents Page Features......................2 Product Information ..................3 Alert Symbols ....................3 Installation Location..................4 Electrical Requirements .................. 4 Safety Instructions ..................4 Names of Parts ....................5 Using the Remote Control Unit ..............10 Operation with the Remote Control Unit ........... 12 1.

  • Page 42: Installation Location

    Installation Location We recommend that this air conditioner be installed properly by • qualified installation technicians in accordance with the Installation Instructions provided with the unit. Before installation, check that the voltage of the electric supply in • your home or office is the same as the voltage shown on the nameplate.

  • Page 43: Names Of Parts

    Names of Parts Air intakes INDOOR UNIT Air outlet Remote control unit Drain hose Refrigerant tubes OUTDOOR UNIT Air outlet This illustration is based on the external appearance of a standard NOTE model. Consequently, the shape may differ from that of the air conditioner you have selected.
  • Page 44 Unit Display and Operation Selector Operation selector INDOOR UNIT IMPORTANT Remote control receiver Avoid using radio equipment such as mobile phone near (within 1 m of) the indoor unit. Some radio equipment may cause the unit to malfunction. If the trouble occurs, dis- connect power and restart the air conditioner after a few OPERATION...
  • Page 45 Remote Control Unit (Display) Displayed when main unit sensor is in use Displayed when setting temperature SET TEMP. Displayed when transmitting data Displayed when temperature is shown Displayed when the temperature setting is at the upper or lower allowable limit Displayed when setting timer Symbols (1) Operation mode...

  • Page 46: Remote Control Unit

    Remote Control Unit AIR CONDITIONER Sensor Transmitter AIR CONDITIONER SET TEMP. Display (Cover closed) 1 HR. TIMER TEMP. TEMP. setting buttons 1 HR. TIMER button ON I /OFF ON/OFF operation button NIGHT MODE SETBACK NIGHT SETBACK button MODE selector button FLAP TIMER ON button FLAP button...
  • Page 47 Remote Control Unit (continued) TIMER ON button : The air conditioner starts at the set time. TIMER OFF button : The air conditioner stops at the set time. TIMER SET button This button is used to set the time at which you wish the air conditioner to go on or off.

  • Page 48: Using The Remote Control Unit

    Using the Remote Control Unit How to Install Batteries ACL button 1. Slide the cover in the direction indicated by the arrow and remove it. 2. Install two AAA alkaline batteries. Make sure the batteries point in the direction marked in the battery compartment.
  • Page 49 Using the Remote Control Unit (continued) Mounting the Remote Control Unit Removable mounting Non-removable mounting Wall Wall (Packed in the indoor unit) (Packed in the indoor unit) Mounting on a wall A. Removable mounting 1) Momentarily hold the remote control unit at the desired mounting position.

  • Page 50: Operation With The Remote Control Unit

    Operation with the Remote Control Unit 1. Operation AIR CONDITIONER SET TEMP. 1 HR. TIMER TEMP. STEP 3 ON I /OFF STEP 2 NIGHT MODE SETBACK STEP 1 FLAP STEP 5 FAN SPEED SENSOR STEP 4 SELECT TIMER BATTERIES Check that the circuit breaker on the power panel is turned on and that NOTE the operation selector of the indoor unit is in the ON position.

  • Page 51: Adjusting The Fan Speed

    Operation with the Remote Control Unit (continued) Choose the best position in the room for the remote control unit, • NOTE which also acts as the sensor for room comfort and transmits the operating instructions. Once you’ve found this best position, always keep the remote control unit there.

  • Page 52: Night Setback Mode

    Operation with the Remote Control Unit (continued) 3. Night Setback Mode SET TEMP. 1 HR. TIMER TEMP. ON I /OFF NIGHT MODE SETBACK FLAP FAN SPEED Night Setback Mode is used for saving energy. Press the NIGHT SETBACK button while operation. mark appears in the display.

  • Page 53: Special Remarks

    Special Remarks ‘‘DRY’’ ( ) Operation How it works? Once the room temperature reaches the level that was set, the unit • repeats the cycle of turning on and off automatically. During DRY operation, the fan speed is automatically set to LOW or •...

  • Page 54: Using The 12-Hour On And Off Timer

    Using the 12-Hour ON and OFF Timer 1. TIMER ON mode After the length of time set for TIMER ON elapses, the unit begins operating. (Example) The display depicted at left indicates that the air conditioner will begin operating in three hours. Setting procedure: STEP 1 Press the MODE button and set the desired operation...
  • Page 55 Using the 12-Hour ON and OFF Timer (continued) 3. ON/OFF Program Timer A combination of the TIMER ON and TIMER OFF modes, this function allows you to specify the time that the unit turns on and the time when it turns off. (Example) The unit will turn on three hours from now, and turn off five hours from now.

  • Page 56: Using The 1-Hour Off Timer

    Using the 1-Hour OFF Timer 1. 1-Hour OFF Timer This function causes the unit to operate for one hour and then stop, regardless of whether the unit is on or off when this button is pressed. indicator in the display indicates that this function is operating. Setting procedure: Regardless of whether the unit is operating or stopped, press the 1 HR.

  • Page 57: Adjusting The Airflow Direction

    Adjusting the Airflow Direction 1. Horizontal The horizontal airflow can be adjusted by moving the vertical vanes with your hands to the left or right. When the humidity is high, the vertical vanes should be in the front CAUTION position during the cooling or dehumidifying operation. If the vertical vanes are positioned all of the way to the right or left, condensation may begin to form around the air vent and drip down.

  • Page 58: Operation Without The Remote Control Unit

    Operation without the Remote Control Unit INDOOR UNIT If you have lost the remote control unit or it is not working properly, follow the steps below. 1. When the air conditioner is not running If you want to turn on the air conditioner, switch the operation selector to the OFF position, and then to the ON position.
  • Page 59 Care and Cleaning (continued) Anti-Mold Filter The anti-mold filter behind the air intake grille should be checked and cleaned at least once every two weeks. How to remove the 1. Grasp both ends of Air intake grille anti-mold filter the air intake grille and pull it out and 2.
  • Page 60 Care and Cleaning (continued) Air Cleaning Filter The air cleaning filter removes dust and dirt from the air, and reduces (not provided) odors and smoke from tobacco. The air cleaning filter is not provided with the air conditioner and must NOTE be purchased separately.

  • Page 61: Troubleshooting

    Troubleshooting If your air conditioner does not work properly, first check the following points before requesting service. If it still does not work properly, contact your dealer or service center. Trouble Possible Cause Remedy Air conditioner does not 1. Power failure. 1.
  • Page 62 SANYO Electric Co.,Ltd Osaka, Japan 700428 12/99/200 Printed in Japan...

This manual is also suitable for:

Sap–cm1821aSap–k91a-sSap–cm1821a-s

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