Sanyo C1872 Technical & Service Manual
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Sanyo C1872 Technical & Service Manual

Dc inverter split system air conditioner
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See also: Instruction and Installation Manual
TECHNICAL & SERVICE MANUAL
KS1872 + C1872
+ CL1872
KS2472 + C2472
+ CL2472
DC INVERTER SPLIT SYSTEM AIR CONDITIONER
Indoor Model No.
KS1872
KS2472
Indoor Unit
KS1872
KS2472
IMPORTANT
These air conditioners employ new
refrigerant R410A.
Pay special attention when
servicing the unit.
Product Code No.
1 852 099 83
1 852 099 84
Outdoor Model No.
Product Code No.
C1872
1 852 330 36
C2472
1 852 330 37
CL1872
1 852 330 40
CL2472
1 852 330 41
Outdoor Unit
C1872
CL1872
C2472
CL2472
REFERENCE NO.
FILE NO.
Destination: North America
SM
700663-04

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  • Page 1 TECHNICAL & SERVICE MANUAL KS1872 + C1872 + CL1872 KS2472 + C2472 + CL2472 DC INVERTER SPLIT SYSTEM AIR CONDITIONER Indoor Model No. KS1872 KS2472 Indoor Unit KS1872 KS2472 IMPORTANT These air conditioners employ new refrigerant R410A. Pay special attention when servicing the unit.
  • Page 2 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...

  • Page 3: Table Of Contents

    1. OPERATING RANGE 2. SPECIFICATIONS 2-1. Unit Specifications 2-2. Major Component Specifications 2-3. Other Component Specifications 3. DIMENSIONAL DATA 4. REFRIGERANT FLOW DIAGRAM 4-1. Refrigerant Flow Diagram 5. PERFORMANCE DATA 5-1. Temperature Charts 5-2. Cooling Capacity 5-3. Cooling Capacity (Low Ambient) 5-4.
  • Page 4 11. REFRIGERANT R410A: SPECIAL PRECAUTIONS WHEN SERVICING UNIT 11-1. Characteristics of New Refrigerant R410A 11-2. Checklist before Servicing 11-3. Tools Specifically for R410A 11-4. Tubing Installation Procedures 11-5. In Case of Compressor Malfunction 11-6. In Case Refrigerant is Leaking 11-7. Charging Additional Refrigerant 11-8.

  • Page 5: Operating Range

    1. OPERATING RANGE Models : KS1872 + C1872 KS2472 + C2472 Temperature Maximum Cooling Minimum Models : KS1872 + CL1872 KS2472 + CL2472 Temperature Maximum Cooling Minimum Indoor Air Intake Temp. Outdoor Air Intake Temp. 95 °F D.B. / 71 °F W.B.

  • Page 6: Specifications

    2. SPECIFICATIONS 2-1. Unit Specifications KS1872 Indoor Unit C1872 Outdoor Unit Voltage Rating Total Capacity Sensible Capacity Latent Capacity Air Circulation (High) Moisture Removal (High) Available Voltage Range Running Amperes Power Input Power Factor SEER Compressor Locked Rotor Amperes Fuse or Circuit Breaker Capacity...
  • Page 7 KS1872 Indoor Unit C1872 Outdoor Unit Voltage Rating Total Capacity Sensible Capacity Latent Capacity Air Circulation (High) Moisture Removal (High) Available Voltage Range Running Amperes Power Input Power Factor SEER Compressor Locked Rotor Amperes Fuse or Circuit Breaker Capacity Controls / Temperature Control...
  • Page 8 KS2472 Indoor Unit C2472 Outdoor Unit Voltage Rating Total Capacity Sensible Capacity Latent Capacity Air Circulation (High) Moisture Removal (High) Available Voltage Range Running Amperes Power Input Power Factor SEER Compressor Locked Rotor Amperes Fuse or Circuit Breaker Capacity Controls / Temperature Control Control Unit Timer Fan Speeds...
  • Page 9 KS2472 Indoor Unit C2472 Outdoor Unit Voltage Rating Total Capacity Sensible Capacity Latent Capacity Air Circulation (High) Moisture Removal (High) Available Voltage Range Running Amperes Power Input Power Factor SEER Compressor Locked Rotor Amperes Fuse or Circuit Breaker Capacity Controls / Temperature Control Control Unit Timer Fan Speeds...
  • Page 10 KS1872 Indoor Unit CL1872 Outdoor Unit Voltage Rating Total Capacity Sensible Capacity Latent Capacity Air Circulation (High) Moisture Removal (High) Available Voltage Range Running Amperes Power Input Power Factor SEER Compressor Locked Rotor Amperes Fuse or Circuit Breaker Capacity Controls / Temperature Control Control Unit Timer Fan Speeds...
  • Page 11 KS1872 Indoor Unit CL1872 Outdoor Unit Voltage Rating Total Capacity Sensible Capacity Latent Capacity Air Circulation (High) Moisture Removal (High) Available Voltage Range Running Amperes Power Input Power Factor SEER Compressor Locked Rotor Amperes Fuse or Circuit Breaker Capacity Controls / Temperature Control Control Unit Timer Fan Speeds...
  • Page 12 KS2472 Indoor Unit CL2472 Outdoor Unit Voltage Rating Total Capacity Sensible Capacity Latent Capacity Air Circulation (High) Moisture Removal (High) Available Voltage Range Running Amperes Power Input Power Factor SEER Compressor Locked Rotor Amperes Fuse or Circuit Breaker Capacity Controls / Temperature Control Control Unit Timer Fan Speeds...
  • Page 13 KS2472 Indoor Unit CL2472 Outdoor Unit Voltage Rating Total Capacity Sensible Capacity Latent Capacity Air Circulation (High) Moisture Removal (High) Available Voltage Range Running Amperes Power Input Power Factor SEER Compressor Locked Rotor Amperes Fuse or Circuit Breaker Capacity Controls / Temperature Control Control Unit Timer Fan Speeds...

  • Page 14: Major Component Specifications

    2-2. Major Component Specifications 2-2-1. Indoor Unit KS1872 Indoor Unit Control PCB Part No. Controls Control Circuit Fuse Remote Control Unit Type Q'ty ... Dia. and Length Fan Motor Type Model ... Q'ty No. of Poles Rough Measure RPM (Cool) Nominal Output Coil Resistance (Ambient Temp.
  • Page 15 KS2472 Indoor Unit Control PCB Part No. Controls Control Circuit Fuse Remote Control Unit Type Q'ty ... Dia. and Length Fan Motor Type Model ... Q'ty No. of Poles Rough Measure RPM (Cool) Nominal Output Coil Resistance (Ambient Temp. 68 °F (20 °C)) Safety Device Type Over-Current Protection...
  • Page 16 2-2-2. Outdoor Unit C1872 Outdoor Unit Control PCB Part No. Controls Control Circuit Fuse Compressor Type Compressor Model / Nominal Output Compressor Oil ... Amount Coil Resistance (Ambient Temp. 68 °F (20 °C)) Safety Device CT (Peak current cut-off control) Compressor Discharge Temp.
  • Page 17 C2472 Outdoor Unit Control PCB Part No. Controls Control Circuit Fuse Compressor Type Compressor Model / Nominal Output Compressor Oil ... Amount Coil Resistance (Ambient Temp. 77 °F (25 °C)) Safety Device CT (Peak current cut-off control) Compressor Discharge Temp. Control Operation cut-off control in abnormal ambient Temp.
  • Page 18 CL1872 Outdoor Unit Control PCB Part No. Controls Control Circuit Fuse Compressor Type Compressor Model / Nominal Output Compressor Oil ... Amount Coil Resistance (Ambient Temp. 68 °F (20 °C)) Safety Device CT (Peak current cut-off control) Compressor Discharge Temp. Control Operation cut-off control in abnormal ambient Temp.
  • Page 19 CL2472 Outdoor Unit Control PCB Part No. Controls Control Circuit Fuse Compressor Type Compressor Model / Nominal Output Compressor Oil ... Amount Coil Resistance (Ambient Temp. 77 °F (25 °C)) Safety Device CT (Peak current cut-off control) Compressor Discharge Temp. Control Operation cut-off control in abnormal ambient Temp.

  • Page 20: Other Component Specifications

    2-3. Other Component Specifications KS1872 Indoor Unit KS2472 Outdoor Unit C1872 C2472 CL1872 CL2472 Indoor air temp sensor (Model:PTM-D51H-S3 TH2) (10) (15) (20) (25) (30) (35) (40) Temperature Indoor heat exchanger sensor (Model:PTM-D51H-S3 TH1) Compressor temp sensor (Model:TKS 293B) 32 50 68 86 104 122 140 158 176 194 (0) (10) (20) (30) (40) (50) (60) (70) (80) (90) °F...

  • Page 21: Dimensional Data

    3. DIMENSIONAL DATA KS1872 Indoor Unit KS2472 Unit: inch(mm)
  • Page 22 Outdoor Unit C1872 CL1872 23-15/16 11-17/32 34-21/32 (880) 5-11/32 15/32 2-17/32 1-13/16 2-13/32 Wide tube service valve dia.1/2" (12.70) Narrow tube service valve dia.1/4" (6.35) 3/32 5-23/32 Unit: inch(mm)
  • Page 23 Outdoor Unit C2472 CL2472 23-15/16 11-17/32 35-7/16(900) 5-11/32 15/32 2-15/16 1-21/32 2-7/8 Narrow tube service valve dia.1/4" (6.35) Wide tube service valve dia.5/8" (15.88) 2-1/32 4-1/2 Unit: inch(mm)

  • Page 24: Refrigerant Flow Diagram

    IMPORTANT Because capillary tubing is used in the outdoor unit, both the wide and narrow tubes of this air conditioner become cold. To prevent heat loss and wet floors due to dripping of condensation, both tubes must be well insulated with a proper insulation material.

  • Page 25: Performance Data

    5. PERFORMANCE DATA 5-1. Temperature Charts KS1872 Indoor Unit Outdoor Unit C1872 Cooling Characteristics (RH : 46%, Indoor fan speed : High fan) (60Hz, 230V) (1) Low pressure performance chart (2) Operating current performance chart (3) Indoor discharge air performance chart NOTE •...
  • Page 26 KS1872 Indoor Unit Outdoor Unit CL1872 Cooling Characteristics (RH : 46%, Indoor fan speed : High fan) (60Hz, 230V) (1) Low pressure performance chart (1.2) (1.1) (1.0) (0.9) (0.8) (0.7) (0.6) (0.5) (-20) (-15) (-10) (2) Operating current performance chart (-20) (-15) (-10)
  • Page 27 KS2472 Indoor Unit Outdoor Unit C2472 Cooling Characteristics (RH : 46%, Indoor fan speed : High fan) (60Hz, 230V) (1) Low pressure performance chart (2) Operating current performance chart (3) Indoor discharge air performance chart NOTE • Check each performance value in test-run mode. Electrical performance values represent a combined indoor/outdoor value. (1.2) Lo fan Hi Fan...
  • Page 28 KS2472 Indoor Unit Outdoor Unit CL2472 Cooling Characteristics (RH : 46%, Indoor fan speed : High fan) (60Hz, 230V) (1) Low pressure performance chart (1.2) (1.1) (1.0) (0.9) (0.8) (0.7) (0.6) (0.5) (-20) (-15) (-10) (2) Operating current performance chart (-20) (-15) (-10)

  • Page 29: Cooling Capacity

    5-2. Cooling Capacity : KS1872 Indoor Unit Outdoor Unit : C1872 / CL1872 Power Supply : 230V Single Phase 60Hz < Cooling Capacity > RATING CAPACITY: INDOOR ENT. TEMP. W.B. D.B. 72 (22.2) 76 (24.4) (15.0) 80 (26.7) 84 (28.9) 88 (31.1)
  • Page 30 : KS2472 Indoor Unit Outdoor Unit : C2472 / CL2472 Power Supply : 230V Single Phase 60Hz < Cooling Capacity > RATING CAPACITY: INDOOR ENT. TEMP. W.B. D.B. 72 (22.2) 76 (24.4) (15.0) 80 (26.7) 84 (28.9) 88 (31.1) 72 (22.2) 76 (24.4) (17.2) 80 (26.7)

  • Page 31: Cooling Capacity (Low Ambient)

    5-3. Cooling Capacity (Low Ambient) : KS1872 Indoor Unit Outdoor Unit : CL1872 Power Supply : 230V Single Phase 60Hz < Cooling Capacity (Low Ambient) > RATING CAPACITY: INDOOR ENT. TEMP. W.B. D.B. 72 (22.2) 76 (24.4) (15.0) 80 (26.7) 84 (28.9) 88 (31.1) 72 (22.2)
  • Page 32 : KS2472 Indoor Unit Outdoor Unit : CL2472 Power Supply : 230V Single Phase 60Hz < Cooling Capacity (Low Ambient) > RATING CAPACITY: INDOOR ENT. TEMP. W.B. D.B. 72 (22.2) 76 (24.4) (15.0) 80 (26.7) 84 (28.9) 88 (31.1) 72 (22.2) 76 (24.4) (17.2) 80 (26.7)

  • Page 33: Air Throw Distance Charts

    5-4. Air Throw Distance Charts KS1872 Indoor Unit Room air temp. : Cooling Fan speed 80°F (26.7°C) High Horizontal distance (ft.) : Flap angle 0 , : Axis air velocity 0 : Flap angle 0 , : Axis air velocity 0 : Flap angle 30 , : Axis air velocity 30 : Flap angle 30 ,...
  • Page 34 KS2472 Indoor Unit Room air temp. : Cooling Fan speed 80 °F (26.7 °C ) High Horizontal distance (ft.) : Flap angle 0 , : Axis air velocity 0 : Flap angle 0 , : Axis air velocity 0 : Flap angle 30 , : Axis air velocity 30 : Flap angle 30 , : Axis air velocity 30...

  • Page 35: Electrical Data

    6. ELECTRICAL DATA 6-1. Electrical Characteristics KS1872 Indoor Unit Outdoor Unit C1872 Cooling Performance at Rating conditions Running amp. Power input Rating conditions: Indoor air temperature: Outdoor air temperature: Cooling Performance at Rating conditions Running amp. Power input Rating conditions:...
  • Page 36 KS2472 Indoor Unit Outdoor Unit C2472 Cooling Performance at Rating conditions Running amp. Power input Rating conditions: Indoor air temperature: Outdoor air temperature: Cooling Performance at Rating conditions Running amp. Power input Rating conditions: Indoor air temperature: Outdoor air temperature: KS2472 Indoor Unit Outdoor Unit CL2472...

  • Page 37: Electric Wiring Diagrams

    6-2. Electric Wiring Diagrams KS1872 KS2472 Indoor Unit EVAPORATOR CONNECTOR FLAP FLAP MOTOR FAN MOTOR To avoid electrical shock hazard, be sure to WARNING disconnect power before checking, servicing and/or cleaning any electrical parts. AC1 AC2 SI FLAP 5P (WHT) LAMP 10P( WHT ) CONTROLLER...
  • Page 38 Outdoor Unit C1872 CL1872 REACTANCE COMP A-TH 1 2 3 4 1 2 3 4 1 2 3 OVERLOAD RELAY COMPRESSOR (OLR) MOTOR To avoid electrical shock hazard, be sure to WARNING disconnect power before checking, servicing and/or cleaning any electrical parts.
  • Page 39 Outdoor Unit C2472 REACTANCE COMP A-TH 1 2 3 4 1 2 3 4 1 2 3 OVERLOAD RELAY COMPRESSOR (OLR) MOTOR To avoid electrical shock hazard, be sure to WARNING disconnect power before checking, servicing and/or cleaning any electrical parts. HIC + HIC + BD -...
  • Page 40 Outdoor Unit CL2472 REACTANCE 1P-CONNECTOR ( WHT ) 1P-CONNECTOR ( WHT ) HEATER1 HEATER0 CRANKCASE HEATER COMP A-TH 1 2 3 4 1 2 3 4 1 2 3 OVERLOAD RELAY COMPRESSOR (OLR) MOTOR To avoid electrical shock hazard, be sure to WARNING disconnect power before checking, servicing and/or cleaning any electrical parts.

  • Page 41: Maintenance

    The address can be set in order to prevent interference between remote controllers when two Sanyo indoor units are installed near each other. The address is normally set to "A." To set a different address, it is necessary to change the address on the second remote controller.

  • Page 42: Disconnecting And Connecting Positive Connector For Outdoor Unit

    7-2. Disconnecting and Connecting Positive Connector for Outdoor Unit Pull the cover upward When the cover is pulled upward, the lock is released with the sequence of 1 and 2. One of the two types of connectors illustrated at left is used. Their basic structure is the same for each.

  • Page 43: Functions

    8. FUNCTIONS 8-1. Operation Functions Emergency operation Emergency operation is available when the remote controller malfunctions, has been lost, or otherwise cannot be used. To operate the system, press the OPERATION button, which is also used as the receiver, below the unit display. Each time this button is pressed, the OPERATION lamp changes color to indicate the type of operation.

  • Page 44: Night Setback

    The main unit display lamp also becomes dimmer. COOL and DRY modes When the night setback mode is selected, the air conditioner automatically raises the temperature setting 2°F(1°C) when 30 minutes have passed after the selection was made, and then another 2°F(1°C) after another 30 minutes have passed,...

  • Page 45: Protective Functions

    Area: Further frequency increase is prohibited. When the temperature falls below Point B, prevention of a rise in frequency is released and the air conditioner operates as in area. The compressor will stop if the temperature of the compressor discharge exceeds 248°F(120°C) due to shortage of gas or...

  • Page 46: Troubleshooting

    Follow the procedure below to perform diagnostics. PROCEDURE After turning on power to the air conditioner, use the remote controller and follow the steps below to execute self-diagnostics. Step 1: Press and hold the remote controller ION button and 1 HR TIMER button.
  • Page 47 (1) Self-diagnostics Lamps INDOOR UNIT Since the indications cover various units, the corresponding parts listed below may not be present in some models. Indication on indoor unit Quiet Timer Operation Code REMOTE CONTROL receiver ... OFF Diagnostics items Room temperature sensor failure (1) Sensor open circuit or short circuit (2) Contact failure at connector or open circuit at terminal crimping location Indoor heat exchanger sensor failure...
  • Page 48 (2) If the self-diagnostics function fails to operate No indicators illuminate and the Check the indoor unit. indoor fan does not rotate. Check the power voltage. Blown Is the fuse blown? Normal Replace the circuit board or the fuse. Replace the controller.

  • Page 49: Checking The Indoor And Outdoor Units

    9-3. Checking the Indoor and Outdoor Units (1) Checking the indoor unit Control Use the remote controller to operate the unit in "TEST run" mode. To determine whether the mode is currently in "TEST run" mode, check the 4 indicator lamps on the unit.
  • Page 50 (3) Serial Communication Error Identification Procedure If the lamps on the main body show the following conditions after the completion of self-diagnostics, a communication error between the indoor unit and outdoor unit might be considered. In such a case, identify the breakdown section by using the following procedure. NOTE Refer to "Method of Self-Diagnostics"...
  • Page 51 ( Continued from the previous page A. ) 1. Turn OFF the power and wait until the power lamp (LED) of the outdoor unit controller is turned OFF. 2. Short-circuit between the terminals 2 and 3 on the outdoor unit terminal strip. 1.
  • Page 52 (3-2) Condition: E12 Troubleshooting Serial Communication 1. Turn off the power and wait until the power lamp (LED) of the outdoor unit controller is turned OFF. 2. Disconnect the cable from the terminal 3 on the Outdoor unit terminal strip. 1.

  • Page 53: Trouble Diagnosis Of Fan Motor

    DC motor will trip and voltage output will stop approximately 1 minute after operation is started. For this reason, to measure the voltage again, turn OFF the unit once using the remote controller, and then start the air conditioner again. [Trouble symptom 1] The fan does not stop when the unit stops.

  • Page 54: Outdoor Fan Motor

    All of the above measured values are normal. Any one of the above measured values is not normal. (Reference) DC motor connector pin arrangement C1872 / CL1872 Pin 1: Vs (white) Pin 2: Not used Pin 3: Not used Pin 4: Gnd (black)

  • Page 55: Noise Malfunction And Electromagnetic Interference

    9-5. Noise Malfunction and Electromagnetic Interference An inverter A/C operates using pulse signal control and high frequencies. Therefore, it is susceptible to the effects of external noise, and is likely to cause electromagnetic interference with nearby wireless devices. A noise filter is installed for ordinary use, preventing these problems. However, depending on the installation conditions, these effects may still occur.

  • Page 56: Checking Electrical Components

    10. CHECKING ELECTRICAL COMPONENTS 10-1. Measurement of Insulation Resistance The insulation is in good condition if the resistance exceeds 1M ohm. 10-1-1. Power Supply Cord Clamp the grounding wire of power cord with the lead clip of the insulation resistance tester and measure the resistance by placing a probe on either of the two power wires.

  • Page 57: Checking Continuity Of Fuse On Pcb Ass'y

    10-2. Checking Continuity of Fuse on PCB Ass'y Remove the PCB Ass'y from the electrical component box. Then pull out the fuse from the PCB Ass'y. (Fig. 5) Check for continuity using a multimeter as shown in Fig. 6. Fuse Fig.

  • Page 58: Refrigerant R410A: Special Precautions When Servicing Unit

    When refrigerant R410A is used, the composition will differ depending on whether it is in gaseous or liquid phase, and the basic performance of the air conditioner will be degraded if it is charged while the refrigerant is in gaseous state. Thus, always charge the refrigerant while it is in liquid phase.

  • Page 59: Checklist Before Servicing

    11-2. Checklist before Servicing Use a clutch-type flare tool for R410A or the conventional flare tool. Note that sizes of the resultant flares differ between these two tools. Where a conventional flare tool is used, make sure to observe A Specification (amount of extrusion) by using the flare spacer.

  • Page 60: Tools Specifically For R410A

    11-3. Tools Specifically for R410A For servicing, use the following tools for R410A Tool Distinction Tools specifically for R410A Tools which can be com- monly used for R22, R407C, and R410A The above tools specifically for R410A must not be used for R22 and R407C. CAUTION Doing so will cause malfunction of the unit.

  • Page 61: In Case Of Compressor Malfunction

    11-5. In Case of Compressor Malfunction Should the compressor malfunction, be sure to make the switch to a replacement CAUTION compressor as quickly as possible. Use only the tools indicated exclusively for R410A. Specifically for R410A." 11-5-1. Procedure for Replacing Compressor (1) Recovering refrigerant Any remaining refrigerant inside the unit should not be released to the atmosphere, but recovered using the...
  • Page 62 (5) Recharging Be sure to charge the specified amount of refrigerant in liquid state using the service port of the wide tube service valve. The proper amount is listed on the unit's nameplate. When the entire amount cannot be charged all at once, charge gradually while operating the unit in Cooling Operation.

  • Page 63: In Case Refrigerant Is Leaking

    11-6. In Case Refrigerant is Leaking Never attempt to charge additional refrigerant when refrigerant has been leaking CAUTION from the unit. Follow the procedure described below to locate points of leaks and carry out repairs, then recharge the refrigerant. (1) Detecting Leaks Use the detector for R410A to locate refrigerant leak points.

  • Page 64: Charging Additional Refrigerant

    11-8. Retro-Fitting Existing Systems 11-8-1. Use of Existing Units Never use new refrigerant R410A for existing units which use R22. This will cause the air conditioner to operate improperly and may result in a hazardous condition. 11-8-2. Use of Existing Tubing If replacing an older unit that used refrigerant R22 with a R410A unit, do not use its existing tubing.

  • Page 65: Appendix Ainstruction Manual

    APPENDIX A INSTRUCTION MANUAL KS1872 + C1872 KS2472 + C2472 (OI-852-6-4180-800-00-2) + CL1872 + CL2472...
  • Page 66 This air conditioner is an inverter type unit that automatically adjusts capacity as appropriate. Details on these functions are provided below; refer to these descriptions when using the air conditioner. • Microprocessor Controlled Operation The interior compartment of the remote control unit contains several features to facilitate automatic operation, easy logically displayed for easy use.
  • Page 67 Troubleshooting... 24 Operating Range... 24 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. ______________________ Date of purchase ________________________________________________ Dealer’s address ________________________________________________...

  • Page 68: Installation Location

    Otherwise there is a risk of suffocation in an extreme case. • Do not turn the air conditioner on and off from the power mains switch. Use the ON/OFF operation button. • Do not stick anything into the air outlet of the outdoor unit. This is dangerous because the fan is rotating at high speed.

  • Page 69: Names Of Parts

    Consequently, the shape may differ from that of the air conditioner which you have selected. This air conditioner consists of an indoor unit and an outdoor unit. You can control the air conditioner with the remote control unit. Air from the room is drawn into this section and passes through air filters which remove dust.

  • Page 70: Unit Display And Operation Button

    (within 4 ft.) the remote control receiver. Some radio equipment may cause malfunction of the unit. If the trouble happens, disconnect power and restart the air conditioner after a few minutes. REMOTE CONTROL receiver OPERATION button OPERATION lamp TIMER lamp...

  • Page 71: Remote Control Unit (Display)

    Displayed when the time display is set to 12-hour time. (1) Operation mode MILD DRY ... COOL ... FAN ... (2) Fan speed Automatic operation ... HIGH ... MEDIUM... LOW ... (3) Temperature setting 60 – 86 °F When set to 80 °F temperature indication...

  • Page 72: Remote Control Unit

    Transmitter When you press the buttons on the remote control unit, the the display to transmit the setting changes to the receiver in the air conditioner. Sensor A temperature sensor inside the remote control unit senses the room temperature.
  • Page 73 : The air conditioner starts at the set time. : The air conditioner stops at the set time. : The air conditioner stops and starts, or starts and stops, at the set times every day. For details, see “Setting the Timer”.

  • Page 74: Using The Remote Control Unit

    If the signal from the remote control unit stops for more than 15 minutes due to the loss of the remote control unit or other trouble, the air conditioner will switch to the temperature sensor which is built into the indoor unit and control the room temperature. In these cases, the temperature around the remote control unit may differ from the temperature detected at the air conditioner’s position.
  • Page 75 Where it may be subject to electrical or magnetic noise • Where there is an obstacle between the remote control unit and air conditioner (since a check signal is sent from the remote control unit every 5 minutes) Before mounting the remote control unit, press the ON/OFF operation button at the mounting location to make sure that the air conditioner operates from that location.

  • Page 76: Operation With The Remote Control Unit

    Set the FAN SPEED selector button to the setting you want. STEP 5 Press the FLAP button and set the airflow direction as desired. (Refer to “Adjusting the Airflow Direction” on page 20.) To stop the air conditioner, press the ON/OFF operation button again. STEP 2 STEP 3 STEP 1 →...

  • Page 77: Adjusting The Fan Speed

    NOTE 2. Adjusting the Fan Speed A. Automatic fan speed B. Manual fan speed 3. Fan Only STEP 3 OI-800-13-EG Operation with the Remote Control Unit (continued) • Choose the best position in the room for the remote control unit, which also acts as the sensor for room comfort and transmits the operating instructions.

  • Page 78: Night Setback Mode

    To release the night setback function, press the NIGHT SETBACK button again. When the night setback mode is selected, the air conditioner automatically raises the temperature setting 2 °F when 30 minutes have passed after the selection was made, and then another 2 °F after another 30 minutes have...

  • Page 79: Quiet Mode

    5. QUIET Mode 6. HIGH POWER Mode 7. ION Mode OI-800-15-EG Operation with the Remote Control Unit (continued) QUIET Mode is used to reduce the fan sound of the indoor unit. Press the QUIET button. mark appears in the display. To cancel, press QUIET button again.

  • Page 80: Special Remarks

    In cooling operation, any plastic parts may shrink due to a sudden temperature change. In this event, a clicking sound may occur. This is normal, and the sound will soon disappear. The remote control unit sends the setting condition to the air conditioner regularly at five minute intervals. OI-800-16-EG...

  • Page 81: Setting The Timer

    2. Press the Advance, Return ( , ) button until PM 10:30 is displayed. 3. Press the CLOCK button again. (Example) To stop the air conditioner at 11:00 am. 1. Press the OFF TIME setting button once. 2. Press the Advance, Return ( , ) button until AM 11:00 is displayed.
  • Page 82 ) button until AM 7:10 is displayed. 3. Wait a few seconds, and then the setting is complete. (Example) To start operation at 7:10 am. and stop the air conditioner at 11:00 am. 10:30 pm. 7:10 am. Present time 1. Set the timer ON/OFF times as shown in 2-1, 2, 3 and 3-1, 2, 3.

  • Page 83: Using The 1-Hour Off Timer

    1. 1-Hour OFF Timer NOTE 2. Operation together with the DAILY ON/OFF REPEAT Timer Do not OI-800-19-EG Using the 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.

  • Page 84: 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 85: Operation Without The Remote Control Unit

    Auto. Care and Cleaning 1. For safety, 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.
  • Page 86 Care and Cleaning (continued) Anti-Mold Filter How to remove the anti-mold filter Cleaning How to replace the anti-mold filter NOTE The anti-mold filter behind the air intake grille should be checked and cleaned at least once every two weeks. 1. Grasp both ends of the air intake grille, and remove it by opening towards the front and pulling towards you.
  • Page 87 Air Clean Filter How to install the air clean filter How to clean the air clean filter NOTE Cleaning the main unit and remote control unit Removing and remounting the air intake grille CAUTION Washing the grille with water Cleaning the negative ion generator NOTE OI-800-23-EG...

  • Page 88: 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 Air conditioner does not run at all. OPERATION lamp blinks and air conditioner does not operate.
  • Page 89 APPENDIX B INSTALLATION INSTRCTIONS KS1872 + C1872 KS2472 + C2472 (II-852-6-4189-988-00-3) + CL1872 + CL2472...

  • Page 90: Installation Instructions

    The illustrations are based on the typical appearance of a standard model. Consequently, the shape may differ from that of the air conditioner that you are installing. SANYO Commercial Solutions A Division of SANYO North America Corporation Cornerstone Business Park, 1062 Thorndale Avenue, Bensenville, IL 60106, U.S.A.

  • Page 91: Important

    Get a partner to help, and bend your knees when lifting to reduce strain on your back. Sharp edges or thin alu- minum 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.

  • Page 92: General

    1. General This booklet briefly outlines where and how to install the air conditioning system. Please read over the entire set of instructions for the indoor and outdoor units and make sure all accessory parts listed are with the system before beginning.

  • Page 93: Additional Materials Required For Installation

    WARNING tion and the possibility of fire, do not place obstacles, enclosures and grilles in front of or surround- ing the air conditioner in a way that may block air flow. AVOID: direct sunlight. nearby heat sources that may affect performance of the unit.
  • Page 94 (Fig. 5e) use lug bolts or equal to bolt down unit, reducing vibration and noise. Install in a location where no antenna of a television or radio exists within 10' (3 m). (C1872, CL1872) Air intake Concrete or equal Fig. 5c...

  • Page 95: Baffle Plate For The Outdoor Unit

    (Fig. 5f) This unit is designed so that the fan of the outdoor unit runs at low speed when the air conditioner is operated at low outdoor air temperatures. When the outdoor unit is exposed to strong wind, the system pressure drops because of the freeze protector.
  • Page 96 (1) Recommended dimensions of the baffle plates Air Intake Baffle 1/4" 6.5 mm) Fig. 5g For Air Intake Dimensions Model (inch) 24-13/32 25/32 1-25/32 22-1/4 CL1872 (mm) (inch) 25-3/16 25/32 1-31/32 CL2472 (mm) For Air Discharge Dimensions Model (inch) 20-7/8 22-1/16 13-25/32 5-29/32 18-1/8 CL1872 (mm) (inch) 22-1/16 23-1/32 13-25/32 5-29/32 19-9/32 1-3/8...
  • Page 97 (3) Installation procedure 1. Air Intake Baffle (1) Left side 1. Remove the top panel from the unit. 2. Remove the panel side L, and drill 3 holes of ø1/4 inch (6.5 mm) at the prescribed positions. 3. Install the windbaffle on the unit using field supply bolts and nuts.

  • Page 98: How To Install The Indoor Unit

    3. How to Install the Indoor Unit 3-1. Remove the Rear Panel from the Unit (1) Remove and discard the set screw on the rear panel. (Fig. 6) (2) Press the 2 marks on the frame cover and disen- gage the stationary tabs from the frame. (Fig. 7) (3) Remove the rear panel.

  • Page 99: Install The Rear Panel On The Wall

    (4) Using a sabre saw, key hole saw or hole-cutting drill attachment, cut a hole in the wall. See Table 4 and Fig. 10. Table 4 Hole Dia. 3-5/32" (80 mm) (5) Measure the thickness of the wall from the inside edge to the outside edge and cut PVC pipe at a slight angle 1/4"...

  • Page 100: Remove The Grille To Install The Indoor Unit

    3-4. Remove the Grille to Install the Indoor Unit Basically, these models can be installed and wired with- out removing the grille. If access to any internal part is needed, follow the steps as given below. How to remove the grille (1) Grasp both ends of the air intake grille, and remove it by opening towards the front and pulling towards you.

  • Page 101: Shape The Indoor Side Tubing

    3-5. Shape the Indoor Side Tubing (1) Arrangement of tubing by direction a) Right or left tubing Cut out the corner of the right/left frame with a hacksaw or the like. (Figs. 20 and 21) b) Right-rear or left-rear tubing In this case, the corner of the frame need not be cut.

  • Page 102: Recommended Wire Length And Diameter

    No wire should be allowed to touch refrigerant tubing, the compressor, or any moving part. WARNING To avoid the risk of electric shock, each air conditioner unit must be grounded. For the installation of a grounding device, please observe local electrical codes.

  • Page 103: Wiring Instructions For Inter-Unit Connections

    3-8. Wiring Instructions for Inter-unit Connections (1) Insert the inter-unit wiring (according to local codes) into the through-the-wall PVC pipe. Run the wiring toward the indoor side allowing approx. 10" (25 cm) to extend from the wall face. (Fig. 24) (2) Grasp both ends of the air intake grille, and remove it by opening towards the front and pulling towards you.
  • Page 104 Loose wiring may cause the WARNING terminal to overheat or result in unit malfunction. A fire hazard may also exist. There- fore, be sure all wiring is tightly connected. When connecting each power wire to the corresponding terminal, follow the instructions “How to connect wiring to the terminal”...

  • Page 105: Mounting

    3-9. Mounting (1) To install the indoor unit, mount the indoor unit onto the 2 tabs on the upper part of the rear plate. (2) Hold down the air discharge outlet and press the lower part of the indoor unit until it clicks to securely fasten to the 2 tabs on the lower part of the rear plate.

  • Page 106: Drain Hose

    I Left-side tubing (1) Lead the tubing and drain hose through the wall, allowing sufficient length for connection. Then bend the tubing using a tube bender to make the attach- ment. (Fig. 38) (2) Switch the drain hose and drain cap. Switching drain hose and drain cap (a) Locate the drain hose and the drain cap.
  • Page 107 To unmount indoor unit Press the 2 marks on the lower part of the indoor unit and unlatch the tabs. Then lift the indoor unit and unmount. (Fig. 42) 3-10. Drain Hose a) The drain hose should be slanted downward to the outdoors.

  • Page 108: How To Install The Outdoor Unit

    4. How to Install the Outdoor Unit First refer to Section 2. Installation Site Selection. 4-1. Wiring Instructions for the Outdoor Unit Regulations on wire size differ from locality to locality. For field wiring requirements, please refer to your local elec- trical codes.

  • Page 109: Refrigerant Tubing

    5. Refrigerant Tubing 5-1. Use of the Flaring Method Many of the conventional split system air conditioners employ the flaring method to connect refrigerant tubes which run between indoor and outdoor units. In this method, the copper tubes are flared at each end and connected with flare nuts.

  • Page 110: Connecting Tubing Between Indoor And Outdoor Units

    5-4. Connecting Tubing between Indoor and Outdoor Units a) Tightly connect the indoor side refrigerant tubing exten- ded from the wall with the outdoor side tubing. (Fig. 52) b) To fasten the flare nuts, apply specified torque as: Table 6 Tube Dia.

  • Page 111: Air Purging

    6. Air Purging Air and moisture remaining in the refrigerant system have undesirable effects as indicated below. Therefore, they must be purged completely. pressure in the system rises operating current rises cooling (or heating) efficiency drops moisture in the air may freeze and block capillary tubing water may lead to corrosion of parts in the refrigerant system I Air Purging with a Vacuum Pump (for Test Run)
  • Page 112 (14) If there is no leakage, stop the air conditioner. (15) Wipe off the soap on the tubing. This completes air purging with a vacuum pump and the air conditioner is ready for actual operation.
  • Page 113 How to Test Run the Air Conditioner After turning on power to the air conditioner, use the remote controller and follow the steps below to conduct the test run. (1) Set the remote controller in Test Run mode. (Fig. 59a) a) Press and hold the ION button.

  • Page 114: I Basic Functions Of The Service Valves

    Table 8 Narrow Tube Service Action Valve (2-Way) CLOSED Shipping Fully OPEN Operating and test running the air conditioner Fully OPEN Measuring pressure and gas charging CLOSED Air purging with a vacuum pump CAUTION When opening or clos- ing the service valve...

  • Page 115: Remote Control Unit Installation Position

    In direct sunlight Behind a curtain or other place where it is covered More than 26' (8 m) away from the air conditioner In the path of the air conditioner’s airstream Where it may become extremely hot or cold...

  • Page 116: Address Switch

    8-1. Address Setting of the Remote Control Unit The address can be set in order to prevent interference between remote controllers when two Sanyo indoor units are installed near each other. The address is normally set to “A.” To set a different address, it is necessary to change the address on the second remote controller.

  • Page 117: Sanyo Commercial Solutions

    SANYO Commercial Solutions A Division of SANYO North America Corporation 1300 Michael Drive, Suite A Wood Dale, IL 60191, U.S.A. Sanyo Canada Inc. 1-300 Applewood Crescent, Concord, Ontario L4K 5C7, CANADA Oct. / 2008 (T)

This manual is also suitable for:

C2472Cl1872Cl2472Ks1872Ks2472

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