IMPORTANT! When Transporting Please Read Before Starting 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 This air conditioning system meets strict safety and oper- edges or thin aluminum fins on the air conditioner can ating standards.
Table of Contents Page 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. Air Throw Distance Charts....................5-3.
Page 4
11-8. Retro-Fitting Existing Systems ..................12. CHECKING ELECTRICAL COMPONENTS 12-1. Measurement of Insulation Resistance ................12-2. Checking Continuity of Fuse on PCB Ass’y ..............12-3. Checking Motor Capacitor ....................APPENDIX INSTRUCTION MANUAL...
2-2. Major Component Specifications 2-2-1. Indoor Unit Indoor unit SAP-KRV91EH Control PCB Part No. CB-KRV91EH Controls Microprocessor Control circuit fuse 250V 3.15A Remote Control Unit RCS-IHPS41E / RCS-IHCS4E Fan & Fan Motor Type Cross-flow Q’ty … Dia. and length 1 … D88 Fan motor model …...
Page 8
2-2-2. Outdoor Unit Outdoor unit SAP-CRV91EH Control PCB POW-CV121CH Compressor Type Rotary (Hermetic) Compressor model C-6RVN73HOT 80879680 Compressor oil … Amount FV68S … 350 Ω Coil resistance (Ambient temp. 25°C) C – R: 0.781 C – S: 0.781 Safety devices CT (Peak current cut-off control) Compressor discharge temp.
2-3. Other Component Specifications 2-3-1. Indoor Unit Indoor unit SAP-KRV91EH Thermistor (Room sensor) DTN-TKS150Y Resistance kΩ 25°C 5.0 ± 3% Thermistor (Coil sensor) DTN-TKS150Y Resistance kΩ 25°C 58.3 DATA SUBJECT TO CHANGE WITHOUT NOTICE. 2-3-2. Outdoor Unit Outdoor unit SAP-CRV91EH...
3. DIMENSIONAL DATA Indoor unit SAP-KRV91EH 805.0 126.0 193.0 Remote control unit Narrow tube ø6.35 (1/4") People sensor Wide tube ø9.52 (3/8") Unit: mm...
Page 11
Outdoor unit SAP-CRV91EH NOTE Location of Service Valves Service valves are located behind the side panel. See the illustration below. Narrow tube service valve ø6.35 (1/4") Wide tube service valve ø9.52 (3/8") Unit: mm...
6. ELECTRICAL DATA 6-1. Electrical Characteristics Indoor unit SAP-KRV91EH Outdoor unit SAP-CRV91EH Cooling Indoor Unit Outdoor Unit Complete Unit Fan Motor Fan Motor Compressor Performance at 230V Single phase 50Hz Rating conditions Running amp. 0.23 0.37 Power input 0.026 0.043 0.631...
6-2. Electric Wiring Diagrams Indoor unit SAP-KRV91EH To avoid electrical shock hazard, be sure to WARNING disconnect power before checking, servicing and/or cleaning any electrical parts. Earth plate GRN/YEL GRN/YEL GRN/YEL Evaporator Power cord Terminal plate Thermistor (room) Room/coil Power relay...
Page 19
Outdoor unit SAP-CRV91EH To avoid electrical shock hazard, be sure to WARNING disconnect power before checking, servicing and/or cleaning any electrical parts. From indoor unit CONTROLLER B (WHT) OUT1 DCIN+ DCOUT+ DC 280V A – B OUT2 DCIN– DCOUT– DC 0V Ferrite core Diode...
7. INSTALLATION INSTRUCTIONS 7-1. Installation Site Selection 7-1-1. Indoor Unit To prevent abnormal heat WARNING generation and the possibility of fire, do not place obstacles, enclosures and grilles in front 5 cm min. 5 cm 5 cm of or surrounding the air con-...
Page 21
7-1-2. Outdoor Unit Exhaust fan AVOID: Hot air heat sources, exhaust fans, etc. (Fig. 4) Heat source damp, humid or uneven locations. Outdoor unit choose a place as cool as possible. choose a place that is well ventilated. allow enough room around the unit for air intake/ Fig.
7-1-3. 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 regulations when carrying out the installation. Table 2 lists recommended wire lengths and diameters for power supply systems. NOTE Refer to the wiring system diagram (Fig.
7-2. Refrigerant Tubing Deburring After Before 7-2-1. 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.
7-3. Remote Control Unit Installation Position The remote control unit can be operated from either a non-fixed position or a wall-mounted position. 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 More than 8 m away from the air conditioner...
8. MAINTENANCE 8-1. Changing Address of Indoor Unit and Remote Control Unit If the operation is disturbed by radio interference of the remote control signals, change the address of the remote control unit by cutting the jumper wire on the PCB A of the indoor unit. To Change Address on PCB (1) Cut jumper wire (JP02) on the indoor unit PCB.
9. FUNCTIONS 9-1. Functions for Operation 9-1-1. Operation Selector (1) OFF : Used when the remote control unit is not available (Self-Diagnosis) Used for servicing and maintenance (2) ON: Normal operation....Operate using remote control unit Emergency operation ..This is used when the remote control unit is not available. When ON position is selected, the air conditioner starts oper- ating with automatic switching between cooling and heating modes.
9-1-4. Frequency Control During Automatic Operation, temperature and fan speed are adjusted according to the room conditions to keep the room comfortable. < Dry Operation > Load Dry operation is as described in the diagram < Cooling Zone > at right. When temperature of indoor heat exchanger If the room temperature drops below 15°C,...
Page 28
9-1-9. Timer Back-up If the indoor unit does not receive a time-up signal from the remote control unit at the preset ON / OFF time, time-up is carried out by the back-up timer of the indoor unit within 15 minutes. When the operation is started by using ON timer, and the air conditioner is not manually manipulated for 25 hours or more, then the operation is canceled automatically.
9-2. Protective Functions 9-2-1. Operation Cut-off Control in Abnormal Ambient Temperature The following three protective actions are available to prevent the compressor from operating with abnormal loads. At that time, they initiate thermo-off (stopping the outdoor unit) of the air conditioner. Mode Cut-off action Thermo-off...
Page 30
9-2-5. Cold Draft Prevention in Heating At the beginning of the heating operation, the fan does not start or else operates at LL speed. As the temperature of the indoor heat exchanger rises, the fan operates at the set speed. Set fan speed High speed Normal operation...
Page 31
9-2-7. Sensing of Frosting and Release of Defrosting Non-stop defrosting Defrosting Sequence Heating operation Outdoor fan ON 4-way valve Heating mode Frost sensing Frosting is assumed according to the outdoor temp., outdoor Outdoor heat exchanger temp. heat exchanger Ambient temp. temp.,and operation time.
10. TROUBLESHOOTING Note before beginning inspection/repair After checking the self-diagnostic monitor, disconnect the power plug before beginning inspection and repair. Since the outdoor unit controller (inverter) contains a large electrolytic capacitor, a potentially dangerous charge (at a voltage of 280 VDC) remains even after breaker OFF. When the outdoor controller is operating normally, it takes about 30 seconds to discharge.
10-2. Troubleshooting Using the Self-Diagnostic Monitor 10-2-1. Method of Self-Diagnosis If the operation lamp of the indoor unit flashes every half-second, carry out detailed troubleshooting using the following method. DEMO. TEST NOTE If the operation lamp flashes every half-second as soon as the power is plugged in, there is either a faulty external ROM (for OTP data) on the board of the indoor unit, an insertion fault, or the ROM is not installed.
Page 34
(continued) Indication on Indoor Unit …Off …Flashing …Illuminated People Details of Diagnosis Details of Abnormality Timer Operation Sensor Forgot to attach OTP data Incorrect insertion Abnormality in external ROM of outdoor unit Defective OTP data Defective contact of IC socket Instantaneous power failure/voltage reduction Defective HIC Electric current peak cut-off (20A)
10-3. Fault Assessment of Indoor/Outdoor Unit 10-3-1. Fault Assessment of Indoor Unit Operation Checkpoints (conditions of the unit) Rated voltage exists for inter-unit wiring between 1 and 2. Set operation selector of indoor unit to DEMO and start operation using Connect 2 and 3 with a 5kΩ...
10-4. Problems with Noise and Radio Interference Since an inverter-type air conditioner works at high frequency under pulse control, it can be affected by external noise and may also generate interference to nearby radio equipment. For this reason, this air conditioner is fitted with an electrical noise filter, so no trouble should arise in normal use.
11. REFRIGERANT R410A: SPECIAL PRECAUTIONS WHEN SERVICING UNIT 11-1. Characteristics of New Refrigerant R410A 11-1-1. What is New Refrigerant R410A? R410A is a new refrigerant that contains two types of pseudo-non-azeotropic refrigerant mixture which do not adversely affect the earth’s ozone layer. Its refrigeration capacity and energy efficiency are about the same level as the conventional refrigerant, R22.
Page 38
Tubing precautions Refrigerant R410A is more easily affected by dust or moisture compared with R22, thus be sure to temporarily cover the ends of the tubing with caps or tape prior to installation. Never use 0.7mm-thick copper pipe or pipes which are less than 0.8mm in thickness, since air conditioners with R410A are subject to higher pressure than those using R22 and R407C.
11-3. Tools Specifically for R410A For servicing, use the following tools for R410A Tool Distinction Tool Name Gauge manifold Charging hose Gas leak detector Refrigerant cylinder Charging cylinder Refrigerant recovery unit Vacuum pump with anti-reverse flow (*1) Tools specifically for R410A (Solenoid valve-installed type, which prevents oil from flowing back into the unit when the power is off, is recommended.) Vacuum pump (*2) …...
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. See “11-3. Tools 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 41
(5) Recharging Configurations and characteristics of cylinders Valve 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.
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 (1) Detect leaks points.
Page 43
(6) Recharging Configurations and characteristics of cylinders Valve 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.
11-7. Charging Additional Refrigerant 11-7-1. When Tubes are Extended Observe the proper amount of refrigerant as stated in this service manual or the installation manual that came with the indoor unit. Charge additional refrigerant in liquid state only. Never charge additional refrigerant if refrigerant is leaking from the unit. Follow CAUTION instructions given in “11-6.
12. CHECKING ELECTRICAL COMPONENTS Power plug 12-1. Measurement of Insulation (Field supply) Resistance The insulation is in good condition if the resistance Ground exceeds 1MΩ. Probe 12-1-1. Power supply wires Clamp the grounding terminal of the power plug with Insulation tester the lead clip of the insulation resistance tester and Fig.
12-2. Checking Continuity of Fuse Fuse on PCB Ass’y Remove the PCB Ass’y from the electrical compo- nent box. Then pull out the fuse from the PCB Ass’y. (Fig. 5) PCB Ass’y Check for continuity using a multimeter as shown in Fig.
Page 48
Features 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 Automatic and 3-step Fan Speed • •...
Page 49
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 ................. 12 Using the PEOPLE SENSOR..................13 Before Operation (Main Unit) ..................
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.
Names of Parts Air intake INDOOR UNIT Air outlet Remote control unit Drain hose Refrigerant tubes OUTDOOR UNIT Air outlet This illustration is based on the external view of a standard model. NOTE Consequently, the shape may differ from that of the air conditioner which you have selected.
Page 52
Unit Display and Operation Selector INDOOR UNIT Air Conditioner IMPORTANT Mounting Location selector Avoid using radio equipment such as mobile phone near DEMO. (within 1 m) the indoor unit. Some radio equip- TEST Operation ment may cause mal- selector function of the unit. If the trouble happens, disconnect power and restart the air conditioner...
Page 53
Unit Display and Operation Selector (continued) Air Conditioner Setting the air conditioner mounting location sets the swing range of the Mounting Location horizontal airflow control flaps to positions suitable for the mounting selector location. POWER switch Setting the POWER switch to OFF ensures that excess power is not consumed even when the air conditioner is plugged in.
Page 54
Remote Control Unit (Display) Displayed when setting temperature Displayed when the comfortable Displayed when temperature and operating transmitting data mode for the customer is set automatically. Displayed when main unit sensor is in use Displayed when setting timer Displayed when switching the amperage Symbols (1) Operation mode...
Page 55
Remote Control Unit Transmitter Sensor Display (Cover closed) SAVE button ON/OFF operation button 1 HR. TIMER button TEMP. setting buttons TIMER OFF button NIGHT SETBACK button Timer ON button MODE selector button FLAP buttons Back/Forward buttons SET button FAN SPEED selector button AMPERE button CANCEL button CLOCK button...
Page 56
The address switch changes to prevent mixing of signals from • remote control units when two Sanyo air conditioners are installed next to each other. Normally, the address switch is set to A. When switching the address, the remote control unit and People Sensor must be changed, and the jumper cables on the indoor unit board must be switched.
Page 57
Names of Parts PEOPLE SENSOR This sensor detects human movement using changes in the infrared rays given off by people. When people are detected in the vicinity of the PEOPLE SENSOR during operation, the air conditioner is controlled so that the surrounding room temperature reaches the temperature setting. Also, this eliminates wasteful operation when people are not near the remote control unit for added energy savings.
Using the Remote Control Unit How to Install Batteries Reset ( ) 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.
Using the PEOPLE SENSOR This sensor detects human movement using changes in the infrared • rays given off by people. When people are detected in the vicinity of the PEOPLE SENSOR during operation, the air conditioner is controlled so that the surrounding room temperature reaches the temperature setting.
Before Operation (Main Unit) Make the following preparations before operating the air conditioner. Before Operation 1. Open the air intake grill. To access the inner main operation panel, grip both ends of the air intake grill and pull towards you so that the grill comes off. Air intake grill 2.
Before Operation (Remote Control Unit) STEP 1 STEP 2 Setting the Current Time Example: Setting to 10:10 AM Press so that 0:00 PM is displayed. (To correct the current time during air conditioner operation, press . The clock display flashes.) 1.
Before Operation (PEOPLE SENSOR) Mounting Position and Detection Area (Example) (Example) PEOPLE SENSOR Wall 60° Floor 1.7 m The detection area can be adjusted using the sensitivity adjustment knob. Sensitivity Adjustment The sensitivity of the People sensor can vary depending on the wall temperature and other conditions.
Operation with the Remote Control Unit 1. Automatic Operation STEP 2 STEP 1 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. Once the mode is selected and the unit is preset by following the steps below, you can have the air conditioner automatically bring the...
Page 64
Operation with the Remote Control Unit (continued) To change the temperature setting, press the temperature setting • buttons and change the setting to the desired temperature. Press TEMP. to change the temperature setting. To raise the temperature setting To lower the temperature setting The temperature setting changes by one degree each time one of •...
Operation with the Remote Control Unit (continued) 2. Manual Operation STEP 2 STEP 3 STEP 1 STEP 5 STEP 4 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. If the automatic operation settings of the unit do not meet your needs, press the setting buttons as described below and change the settings as desired.
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.
Operation with the Remote Control Unit (continued) 4. Fan Only STEP 2 STEP 1 STEP 3 If you want to circulate air without any temperature control, follow these steps: STEP 1: Press the MODE selector button to switch to the fan mode ( ).
Page 68
Operation with the Remote Control Unit (continued) A. In Cooling and DRY Mode: When the night setback mode is selected, the air conditioner automatically raises the temperature setting 1 °C when 1 hour has passed after the selection was made, and then another 1 °C after another 1 hour has passed, regardless of the indoor temperature when night setback was selected.
Operation with the Remote Control Unit (continued) 6. Save Mode This mode fixes the temperature setting and reduces the operating current to allow energy-conserving operation friendly to the environment. Press during operation or while stopped. To cancel, press again. Save mode uses the following operation settings. •...
Amperage Selector Amperage Selector If using the air conditioner with devices consuming large amounts of • power, pressing the button permits more electric capacity to make it more difficult for the circuit breaker to trip. The maximum operating current can be lowered for economical •...
Special Remarks ‘‘DRY’’ ( ) Operation How it works? If the room temperature is higher than the setting temperature, the • air conditioner operates in the same way as during cooling operation. When the room temperature approaches the setting temperature, the air conditioner switches to DRY operation and the indoor fans operate irregularly.
Using the 24-Hour ON and OFF Timer Before using the timer, be sure to set the current time on the remote NOTE control unit. 1. TIMER ON mode After the length of time set for TIMER ON elapses, the unit begins (Example) operating.
Page 73
Using the 24-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. Setting procedure: STEP 1 Use the procedure described in the ‘‘1.
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.
Adjusting the Airflow Direction and Strength The direction of the cooling or heating air can be adjusted. (See page 30.) 1. Horizontal The horizontal and vertical airflow can be adjusted by moving the flap and vertical vanes with the remote control unit. Do not move the flap with your hands.
Page 76
Adjusting the Airflow Direction and Strength (continued) 2. Vertical Use the FLAP button ( ) to set either the sweep function or one of the six airflow direction settings. SWEEP COOL SWEEP HEAT A. Sweep function B. Setting the Airflow Manually The flap starts moving up and down to Referring to the above illustration, use deliver air over the sweep range.
Operation without the Remote Control Unit INDOOR UNIT If you have lost the remote control unit or it has trouble, follow the steps below. DEMO. TEST 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.
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. Casing and Grille Clean the casing and grille of the indoor unit with a vacuum cleaner (Indoor Unit)
Page 79
Care and Cleaning (continued) Air intake grille How to replace the 1. With the ‘‘FRONT’’ mark anti-mold filter 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 (...
Care and Cleaning (continued) Removing and remounting With the air intake grille • the air intake grille open all the way, grip Air intake grille both arms with your hands and pull toward you to remove. To remount, hold the air intake grille roughly horizontal and push it in until the arm shafts fit...
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 82
SANYO Electric Co., Ltd. Osaka, Japan 700386 04/99/200 Printed in Japan...
Need help?
Do you have a question about the SAP-KRV91EH and is the answer not in the manual?
Questions and answers
Er det mulig å få tak i ny viftemotor til SAP-KRV91EH og til hvilken pris. Har ulyd under "tomgang