Sanyo SAP-CMRV1424EH Technical & Service Manual

Dc inverter multi-system air conditioner
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TECHNICAL & SERVICE MANUAL
OUTDOOR UNIT : SAP-CMRV1424EH
DC INVERTER MULTI-SYSTEM AIR CONDITIONER
SAP-CMRV1424EH
SAP-CMRV1924EH
SAP-CMRV1934EH
SAP-CMRV2444EH
SAP-CMRV3144EH
SAP-CMRV1924EH
SAP-CMRV1934EH
SAP-CMRV2444EH
SAP-CMRV3144EH
Capacity
Outdoor Model No.
4.0kW
SAP-CMRV1424EH
5.6kW
SAP-CMRV1924EH
5.6kW
SAP-CMRV1934EH
6.8kW
SAP-CMRV2444EH
8.0kW
SAP-CMRV3144EH
FILE NO.
Destination: Europe
Product Code No.
1 852 330 12
1 852 336 59
1 852 330 13
1 852 330 14
1 852 330 15
< Applicable Indoor Units >
Wall mounted type
SAP-KMRV74EH
SAP-KMRV94EH
SAP-KMRV124EH
SAP-KRV184EH
SAP-KRV244EH
NOTE
For details about the combination, refer to
"Unit Combination Table" in the Appendix of
this manual.
IMPORTANT
These air conditioners employ new
refrigerant R410A.
Pay special attention when
servicing the unit.
REFERENCE NO.
Northern Europe
SM
700662
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  Summary of Contents for Sanyo SAP-CMRV1424EH

  • Page 1 TECHNICAL & SERVICE MANUAL OUTDOOR UNIT : SAP-CMRV1424EH FILE NO. SAP-CMRV1924EH SAP-CMRV1934EH SAP-CMRV2444EH SAP-CMRV3144EH Destination: Europe Northern Europe DC INVERTER MULTI-SYSTEM AIR CONDITIONER Capacity Outdoor Model No. Product Code No. 4.0kW SAP-CMRV1424EH 1 852 330 12 5.6kW SAP-CMRV1924EH 1 852 336 59 5.6kW...
  • Page 2 When Transporting Important! 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 edges or This air conditioning system meets strict safety and thin aluminum fins on the air conditioner can cut your operating standards.
  • Page 3: Table Of Contents

    Table of Contents Page APPLICABLE INDOOR UNIT ....................... 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 ....................
  • Page 4 Page APPENDIX A INSTALLATION INSTRUCTIONS ................(SAP-CMRV1424EH) APPENDIX B INSTALLATION INSTRUCTIONS ................SAP-CMRV1924EH, SAP-CMRV1934EH SAP-CMRV2444EH, SAP-CMRV3144EH APPENDIX C UNIT COMBINATION TABLES .................
  • Page 5: Applicable Indoor Unit

    SAP- SAP- SAP- SAP- KMRV74EH KMRV94EH KMRV124EH KRV184EH KRV244EH Multi-Outdoor Unit 2-Room SAP-CMRV1424EH 2-Room SAP-CMRV1924EH 3-Room SAP-CMRV1934EH 4-Room SAP-CMRV2444EH 4-Room SAP-CMRV3144EH 1. The table lists the wall-mounted type of indoor units as representative models. NOTE 2. For details on the applicable indoor units other than the wall-mounted type, refer to the catalog.
  • Page 6: Operating Range

    1. OPERATING RANGE Temperature Indoor Air Intake Temp. Outdoor Air Intake Temp. 32 °C D.B. / 23 °C W.B. 43 °C D.B. Maximum Cooling 19 °C D.B. / 14 °C W.B. 19 °C D.B. Minimum 27 °C D.B. 24 °C D.B. / 18 °C W.B. Maximum Heating _ D.B.
  • Page 7: Specifications

    1.The Values shown in perfromance section and electrical rating section above are based on the following unit combination. For other combination unit, please refer to the "Unit Combination Table" in this manual. Indoor Unit: SAP-KMRV94EH 2units Outdoor Unit: SAP-CMRV1424EH 1unit 2. Rating conditions are: Cooling: Indoor air temp. 27°C D.B. / 19°C W.B. Heating: Indoor air temp.
  • Page 8 Outdoor Unit SAP-CMRV1924EH Type 2-Room Multi Outdoor Unit Number of Connectable Indoor Units Number of Operatable Indoor Units Max. Capacity of Operating Indoor Units 8.65 Power Source 220 to 240V Single-Phase 50Hz Voltage Rating 230V Performance Cooling Heating Capacity ( 2.1 to 6.8 ) ( 2.4 to 8.4 ) BTU/h 19,100...
  • Page 9 Outdoor Unit SAP-CMRV1934EH Type 3-Room Multi Outdoor Unit Number of Connectable Indoor Units Number of Operatable Indoor Units Max. Capacity of Operating Indoor Units 10.5 Power Source 220 to 240V Single-Phase 50Hz Voltage Rating 230V Performance Cooling Heating Capacity ( 2.9 to 6.8 ) ( 3.4 to 8.4 ) BTU/h 19,100...
  • Page 10 Outdoor Unit SAP-CMRV2444EH Type 4-Room Multi Outdoor Unit Number of Connectable Indoor Units Number of Operatable Indoor Units Max. Capacity of Operating Indoor Units 12.2 Power Source 220 to 240V Single-Phase 50Hz Voltage Rating 230V Performance Cooling Heating Capacity ( 2.9 to 8.1 ) ( 3.4 to 9.0 ) BTU/h 23,200...
  • Page 11 Outdoor Unit SAP-CMRV3144EH Type 4-Room Multi Outdoor Unit Number of Connectable Indoor Units Number of Operatable Indoor Units Max. Capacity of Operating Indoor Units 14.7 Power Source 220 to 240V Single-Phase 50Hz Voltage Rating 230V Performance Cooling Heating Capacity ( 2.9 to 9.2 ) ( 3.4 to 9.8 ) BTU/h 27,300...
  • Page 12: Major Component Specifications

    2-2. Major Component Specifications 2-2-1. Outdoor Unit Outdoor Unit SAP-CMRV1424EH Control PCB Part No. CB-CMRV1424EH Controls Microprocessor Control Circuit Fuse 250V 25A Compressor Type DC Twin Rotary (Hermetic) Compressor Model / Nominal Output C-6RVN93H0M / 1,000W Compressor Oil ... Amount FV50S ...
  • Page 13 Outdoor Unit SAP-CMRV1924EH Control PCB Part No. CB-CMRV1924EH Controls Microprocessor Control Circuit Fuse 250V 25A Compressor Type DC Twin Rotary (Hermetic) Compressor Model / Nominal Output 5KD240XAB21 / 1,700W Compressor Oil ... Amount FV50S ... 900 U - V : 0.720 Coil Resistance (Ambient Temp.
  • Page 14 Outdoor Unit SAP-CMRV1934EH Control PCB Part No. CB-CMRV1934EH Controls Microprocessor Control Circuit Fuse 250V 25A Compressor Type DC Twin Rotary (Hermetic) Compressor Model / Nominal Output 5KD240XAB21 / 1,700W Compressor Oil ... Amount FV50S ... 900 U - V : 0.720 Coil Resistance (Ambient Temp.
  • Page 15 Outdoor Unit SAP-CMRV2444EH Control PCB Part No. CB-CMRV2444EH Controls Microprocessor Control Circuit Fuse 250V 25A Compressor Type DC Twin Rotary (Hermetic) Compressor Model / Nominal Output 5KD240XAB21 / 1,700W Compressor Oil ... Amount FV50S ... 900 U - V : 0.720 Coil Resistance (Ambient Temp.
  • Page 16 Outdoor Unit SAP-CMRV3144EH Control PCB Part No. CB-CMRV3144EH Controls Microprocessor Control Circuit Fuse 250V 25A Compressor Type DC Twin Rotary (Hermetic) Compressor Model / Nominal Output 5JD420XAB22 / 3,000W Compressor Oil ... Amount FV50S ... 1,200 U - V : 0.435 Coil Resistance (Ambient Temp.
  • Page 17: Other Component Specifications

    2-3. Other Component Specifications Quantity of Sensor Model No. Sensor Name SAP- SAP- SAP- SAP- SAP- of sensor CMRV1424EH CMRV1924EH CMRV1934EH CMRV2444EH CMRV3144EH Outdoor air temp sensor TKS295B Outdoor heat exchanger sensor TKS292B AW / AN sensor TKS292B BW / BN sensor TKS292B CW / CN sensor TKS292B...
  • Page 18: Dimensional Data

    3. DIMENSIONAL DATA Outdoor Unit SAP-CMRV1424EH Narrow tube service valve × dia.6.35 (1/4") Wide tube service valve × dia.9.52 ( 3/8" ) Unit: mm...
  • Page 19 Outdoor Unit SAP-CMRV1924EH Narrow tube service valve × dia.6.35 (1/4") Wide tube service valve × dia.9.52 ( 3/8" ) Unit: mm...
  • Page 20 Outdoor Unit SAP-CMRV1934EH Narrow tube service valve × dia.6.35 (1/4") Wide tube service valve × dia.9.52 ( 3/8" ) Unit: mm...
  • Page 21 Outdoor Unit SAP-CMRV2444EH Wide tube service valve × dia.12.70 (1/2") Narrow tube service valve × dia.6.35 (1/4") Wide tube service valve × dia.9.52 ( 3/8" ) Unit: mm...
  • Page 22 Outdoor Unit SAP-CMRV3144EH Wide tube service valve × dia.12.70 (1/2") Narrow tube service valve × dia.6.35 (1/4") Wide tube service valve × dia.9.52 ( 3/8" ) Unit: mm...
  • Page 23: Refrigerant Flow Diagram

    4. REFRIGERANT FLOW DIAGRAM 4-1. Refrigerant Flow Diagram Outdoor Unit SAP-CMRV1424EH Indoor unit Outdoor unit Main Service valve on accumulator accumulator wide tube Wide tube O.D.9.52mm Muffler O.D.9.52mm 4-way valve Defrost valve for hot gas bypass Capillary Electric tube for...
  • Page 24 Outdoor Unit SAP-CMRV1924EH Indoor unit Outdoor unit Main Service valve on accumulator accumulator wide tube Wide tube O.D.9.52mm O.D.9.52mm Header 4-way valve Defrost valve for hot gas bypass Electric expansion valve Service valve on narrow tube Narrow tube O.D.6.35mm Cooling cycle Heating cycle O.D.6.35mm Strainer...
  • Page 25 Outdoor Unit SAP-CMRV1934EH Indoor unit Outdoor unit Main Service valve on accumulator accumulator wide tube Wide tube O.D.9.52mm O.D.9.52mm O.D.9.52mm Header 4-way valve Defrost valve for hot gas bypass Electric expansion valve Service valve on narrow tube Narrow tube O.D.6.35mm O.D.6.35mm Cooling cycle Heating cycle...
  • Page 26 Outdoor Unit SAP-CMRV2444EH Indoor unit Outdoor unit Service valve on Main wide tube accumulator accumulator Wide tube O.D.9.52mm O.D.9.52mm O.D.9.52mm O.D.12.7mm Header 4-way valve Defrost valve for hot gas bypass Electric expansion valve Service valve on narrow tube Narrow tube O.D.6.35mm O.D.6.35mm O.D.6.35mm...
  • Page 27 Outdoor Unit SAP-CMRV3144EH Indoor unit Outdoor unit Service valve on Main wide tube accumulator accumulator Wide tube O.D.9.52mm O.D.9.52mm O.D.12.7mm O.D.12.7mm Header 4-way valve Defrost valve for hot gas bypass Electric expansion valve Service valve on narrow tube Narrow tube O.D.6.35mm O.D.6.35mm O.D.6.35mm...
  • Page 28: Performance Data

    5. PERFORMANCE DATA 5-1. Temperature Charts This data will be available in next issue of the Technical & Service Manual. 5-2. Heating Performance This data will be available in next issue of the Technical & Service Manual.
  • Page 29: Electrical Data

    6. ELECTRICAL DATA 6-1. Electric Wiring Diagrams Outdoor Unit SAP-CMRV1424EH To avoid electrical shock hazard, be sure to WARNING disconnect power before checking, servicing and/or cleaning any electrical parts. 8FA2-5257-56900-1...
  • Page 30 Outdoor Unit SAP-CMRV1924EH To avoid electrical shock hazard, be sure to WARNING disconnect power before checking, servicing and/or cleaning any electrical parts. 8FA2-5257-84200-0...
  • Page 31 Outdoor Unit SAP-CMRV1934EH To avoid electrical shock hazard, be sure to WARNING disconnect power before checking, servicing and/or cleaning any electrical parts. 8FA2-5257-57000-0...
  • Page 32 Outdoor Unit SAP-CMRV2444EH To avoid electrical shock hazard, be sure to WARNING disconnect power before checking, servicing and/or cleaning any electrical parts. 8FA2-5257-57100-0...
  • Page 33 Outdoor Unit SAP-CMRV3144EH To avoid electrical shock hazard, be sure to WARNING disconnect power before checking, servicing and/or cleaning any electrical parts. 8FA2-5257-89000-0...
  • Page 34: Functions

    7. FUNCTIONS 7-1. Explanation of Functions NOTE The numerical values such as temperature, frequency, time and current in parentheses are an example of SAP-CMRV3144EH and the values are different from the other models. Control/conditions Unit operation Explanation INITIAL Breaker is ON. Power is supplied to the indoor and outdoor unit control circuits, however the unit remains stopped.
  • Page 35 Control/conditions Unit operation Explanation HEAT When defrost operation Non-stop defrost Defrost operation begins based on outdoor begins, frost has formed temperature conditions. on the outdoor unit (when the ambient air Indoor fan : Stopped Non-stop defrost (Refer to Fig. 1) temperature is low).
  • Page 36 Control/conditions Unit operation Explanation COOL The ON/OFF operation The operation lamp illuminates. The outdoor unit does not operate for 3 minutes button on the remote even after the breaker is turned ON. The indoor fan operates at the set fan speed. controller is pressed.
  • Page 37 (1/f fluctuation fan) Control/conditions Unit operation Explanation SENSOR The ON/OFF operation The operation lamp illuminates. The outdoor unit does not operate for 3 minutes button on the remote even after the breaker is turned ON. The indoor fan operates at the set fan speed. controller is pressed.
  • Page 38: Protective Functions

    7-2. Protective Functions NOTE The numerical values such as temperature, frequency, time and current in parentheses are an example of SAP-CMRV3144EH and the values are different from the other models. 7-2-1. Defrost Detection and Release (1) Non-stop defrosting Defrosting sequence 4-way valve ON Defrost detection occurs in either of the following cases: •...
  • Page 39: Current Control

    7-2-2. Current Control The operating current may rise as a result of causes including increasing heating or cooling loads or decreases in power voltage. In these cases, the operating frequency is automatically reduced, or operation is stopped, in order to control the operating current so that it is (20 A) or less.
  • Page 40 7-2-3. Low Start Current Operation starts at (8 Hz), and the start current is less than the normal operating current. This prevents the flickering of fluorescent lights or television screens that occurs when ordinary A/C units start. 7-2-4. Compressor Temperature Control To protect the compressor coil from overheating, the operating frequency is controlled based on the compressor discharge temperature.
  • Page 41: Precautions Before Performing Inspection Or Repair

    8. TROUBLESHOOTING 8-1. Precautions before Performing Inspection or Repair Both the indoor unit and outdoor unit include electronic control circuits. Be sure to pay attention to the following before inspecting or repairing the outdoor- side electronic circuits. High-capacity electrolytic capacitors are used inside the outdoor unit controller (inverter). They retain an electrical charge (charging voltage DC 311 V) even after the power is turned OFF, and some time is required for the charge to dissipate.
  • Page 42: Trouble Diagnosis By Error Monitor Lamps

    8-2. Trouble Diagnosis by Error Monitor Lamps To pevent electric chock, do not inspect or repair until WARNING the Power Lamp on the P.C.Board is turned off. 8-2-1. Location of the Error Monitor Lamps Remove the top plate of outdoor unit and the cover of Electrical Component Box. The Power Lamp and Error Monitor Lamps are located on the P.C.Board of Electrical Component Box.
  • Page 43: Checking The Outdoor System

    8-3. Checking the Outdoor System 8-3-1. Checking the outdoor unit Work procedure Check items (unit operation) • Apply 220 V AC between terminals L and N on the • The LED (red) on the control board must illuminate. outdoor unit terminal plate. •...
  • Page 44: Trouble Diagnosis Of Each Part

    8-4. Trouble Diagnosis of Each Part 8-4-1. Problems of Each Part and Inspection Points For details about the inspection points, refer to the Inspection Points for Each Part. Indoor unit Outdoor unit Others Problems No. of Inspection Points for Each part Inspection points Self-Diagnostics check...
  • Page 45 When the power is turned ON, the needle will move in the following seguence in approximately 10 to 20 seconds for No voltage on circuit board Voltage varies each point. Model No. Sequence SAP-CMRV1424EH SAP-CMRV1924EH SAP-CMRV1934EH SAP-CMRV2444EH SAP-CMRV3144EH Check the coil resistance. Check the illumination Check the resistance between the gray lead of the red LED.
  • Page 46 (8) Branch tubing temperature sensor Check that the sensor is securely contained in the thermostat holder. (9) Breaker Check whether or not the breaker has been tripped. Check that the breakers and fuses used are of the specified capacity. Check that the breaker and its line are exclusive for A/C use. (10) Refrigerant gas pressure Start a COOL test run, and messure the temperatures of the A/C intake air and discharge air.
  • Page 47: Trouble Diagnosis Of Fan Motor

    Any one of the above measured values is not normal. Outdoor unit controller trouble (Replace the controller .) (Reference) DC motor connector pin arrangement SAP-CMRV1924EH / -CMRV1934EH SAP-CMRV1424EH SAP-CMRV2444EH / -CMRV3144EH Pin 1: Vs (white) Pin 1: Vm (red) Pin 2: Not used Pin 2: Not used...
  • Page 48: Refrigerant R410A: Special Precautions When Servicing Unit

    9. REFRIGERANT R410A: SPECIAL PRECAUTIONS WHEN SERVICING UNIT 9-1. Characteristics of New Refrigerant R410A 9-1-1. What is New Refrigerant R410A? R410A is a new refrigerant that contains two types of pseudo-non-azeotropic refrigerant mixture. Its refrigeration capacity and energy efficiency are about the same level as the conventional refrigerant, R22. 9-1-2.
  • Page 49 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 tubing or tubing which is less than 0.8mm in thickness, since air conditioners with R410A are subject to higher pressure than those using R22 and R407C.
  • Page 50: Tools Specifically For R410A

    9-3. 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)...can be used if the following adapter is attached.
  • Page 51: In Case Of Compressor Malfunction

    9-5. 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 "12-3. Tools Specifically for R410A." 9-5-1. Procedure for Replacing Compressor (1) Recovering refrigerant Any remaining refrigerant inside the unit should not be (1) Recover refrigerant...
  • Page 52 (5) Recharging Configuration and characteristics of cylinders Be sure to charge the specified amount of Valve 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 53: In Case Refrigerant Is Leaking

    9-6. 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 54: Charging Additional Refrigerant

    9-7. Charging Additional Refrigerant 9-7-1. 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 "12-6.
  • Page 55: Appendix A Installation Instructions

    APPENDIX A INSTALLATION INSTRUCTIONS SAP-CMRV1424EH (II-852-6-4190-206-00-0)
  • Page 56: Installation Instructions

    The illustrations are based on the typical appearance of INSTALLATION CHECK SHEET ...... 19 a standard model. Consequently, the shape may differ from that of the air conditioner that you are installing. ELECTRIC WIRING DIAGRAM ......20 85264190206000 © SANYO 2006 SANYO Electric Co., Ltd. Osaka, Japan...
  • Page 57: Important

    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 so Make sure the ceiling/wall is strong enough to hold the it operates safely and efficiently.
  • Page 58: General

    1. General 5. Carpenter’s level This booklet briefly outlines where and how to install 6. Sabre saw or key hole saw the air conditioning system. Please read over the 7. Hacksaw entire set of instructions for the indoor and outdoor 8.
  • Page 59: Additional Materials Required For Installation

    1-5. Additional Materials Required for Installation Refrigeration (armored) tape Insulated staples or clamps for connecting wire (See local codes) Putty Refrigeration lubricant Clamps or saddles to secure refrigerant tubing Indoor unit 2. Installation Site Selection 2-1. Indoor Unit To prevent abnormal heat generation WARNING and the possibility of fire, do not place obstacles, enclosures and...
  • Page 60: Connecting Indoor Units

    Install the indoor unit more than 1 meter away from any antenna or power lines or connecting wires used for tele- vision, radio, telephone, security system, or intercom. Electrical noise from any of these sources may affect operation. install in a sturdy manner to avoid increased operating noise.
  • Page 61: Outdoor Unit

    2-3. Outdoor Unit Exhaust fan AVOID: Hot air heat sources, exhaust fans, etc. (Fig. 5a) Heat source damp, humid or uneven locations. Outdoor unit position the outdoor unit in a protected location where snow will not blow into it. choose a place as cool as possible. Fig.
  • Page 62: Outer Dimensions Of Outdoor Unit

    2-4. Outer Dimensions of Outdoor Unit Service valve on narrow tube side (Outer diameter ø 6.35 ) Service valve on wide tube side (Outer diameter ø 9.52 ) unit: mm Fig. 6a Diagram of Outdoor Unit Installation 2-5. Never install only a single indoor unit. Be sure to connect indoor and outdoor units only in combinations that are listed in the catalog or in the combination table that was provided with the outdoor unit.
  • Page 63: Installation Process

    3. Installation Process Embedding the Tubing and Wiring 3-1. Do not connect tubes to locations that are embedded. Be sure to bind refrigerant tubing and inter-unit cables together with vinyl tape. The power cable must be obtained on-site. (ø3.5: Less than 26 m) Be sure to apply the provided labels to both ends of the inter-unit cables to prevent miswiring.
  • Page 64: Caution Before Connecting Tubes Tightly

    NOTE Copper tubing When reaming, hold the tube end downward and be sure that no copper scraps fall into the tube. (Fig. 9) (3) Remove the flare nut from the unit and be sure to mount Reamer it on the copper tube. (4) Make a flare at the end of copper tube with a flare tool.* (Figs.
  • Page 65: Insulation Of Refrigerant Tubing

    Torque wrench Be sure to match refrigerant CAUTION tubing and electric wiring between indoor and outdoor Spanner units. For more details, refer to Indoor unit “Tubing Check Control” in the Technical & Service Manual. Outdoor unit Fig. 15 3-7. Insulation of Refrigerant Tubing IMPORTANT To prevent heat loss and wet floors due to dripping of con- Insulation...
  • Page 66: Air Purging

    4. 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 efficiency drops moisture in the air may freeze and block capillary tubing Service water may lead to corrosion of parts in the...
  • Page 67 (4) With the “Lo” knob of the manifold valve open and high-pressure valve (“Hi”) closed completely, run the vacuum pump. Run the pump until the pres- sure is –101 kPa (–76 cmHg). The operation time for the vacuum pump varies with tubing length and the capacity of the pump.
  • Page 68: I Pump Down

    (11) Replace the flare nut on the wide tube service port and fasten the flare nut securely with an adjustable wrench or box wrench. Next, mount the valve cap and tighten it with a torque wrench (the cap needs to be tightened with the torque of 20 N·m (200 kgf ·...
  • Page 69: Wiring Instructions

    5. Wiring Instructions 5-1. General Precautions on Wiring (1) Before wiring, confirm the rated voltage of the unit as shown on its nameplate, then carry out the wiring closely following the wiring diagram. (2) Provide a power outlet to be used exclusively for each unit, with a power supply disconnect and circuit break- er for overcurrent protection provided in the exclusive line.
  • Page 70: Wiring System Diagram

    WARNING WARNING To avoid the risk of electric shock, each air Be sure to comply with local codes on running conditioner unit must be grounded. the wire from the indoor unit to the outdoor unit For the installation of a grounding device, (size of wire and wiring method, etc.).
  • Page 71: How To Connect Wiring To The Terminal

    5-4. How to Connect Wiring to the Terminal 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 7 mm (ACTUAL STRIP...
  • Page 72: Wiring Instructions For The Outdoor Unit

    5-5. Wiring Instructions for the Outdoor Unit CAUTION Be sure to correctly align inter-unit cables A and B. Outdoor unit A Terminal board 1 2 3 4 5 6 7 8 Power: Single-phase, 220/240VAC 50HZ Power switch Indoor unit A (not provided) A is the indoor unit with Terminal board...
  • Page 73: Test Run

    Regulations on wire size differ from locality to locality. For field wiring requirements, please refer to your local electrical codes. Make sure that the installation fully complies with all local and national regulations. (1) Remove access panel “C”. (Fig. 32) (2) Connect the inter-unit wiring and power line according to the drawing on the panel side.
  • Page 74: Connecting A Home Automation Device

    7. Connecting a Home Automation Device The HA (white) 4P terminal is located on the indoor unit PCB. If a HA device will be used, connect it to this terminal. Also, refer to Section 9. ELECTRIC WIRING DIAGRAM in the outdoor unit installation manual. 8.
  • Page 75: Electric Wiring Diagram

    9. Electric Wiring Diagram Indoor unit SAP-KMRV74/94/124EH TO OUTDOOR UNIT IND LAMP ASSY YEL/GRN 8FA-2-5257-72600-1 Fig. 33 Electric wiring diagram for 2-room multi outdoor unit (CMRV1424EH) COIL COIL REACTANCE DEFROST VALVE 4WAY VALVE 1 2 3 4 1 2 3 4 1 2 3 4 COIL/OUTDOOR A-TH...
  • Page 76: Appendix B Installation Instructions

    APPENDIX B INSTALLATION INSTRUCTIONS SAP-CMRV1924EH SAP-CMRV1934EH SAP-CMRV2444EH SAP-CMRV3144EH (II-852-6-4189-992-00-2)
  • Page 77 The illustrations are based on the typical appearance of INSTALLATION CHECK SHEET ...... 24 a standard model. Consequently, the shape may differ ELECTRIC WIRING DIAGRAM ......25 from that of the air conditioner that you are installing. 85264189992002 © SANYO 2006 SANYO Electric Co., Ltd. Osaka, Japan...
  • Page 78: Important

    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 so Make sure the ceiling/wall is strong enough to hold the it operates safely and efficiently.
  • Page 79: General

    1. General 5. Carpenter’s level This booklet briefly outlines where and how to install 6. Sabre saw or key hole saw the air conditioning system. Please read over the 7. Hacksaw entire set of instructions for the indoor and outdoor 8.
  • Page 80: Additional Materials Required For Installation

    1-5. Additional Materials Required for Installation Refrigeration (armored) tape Insulated staples or clamps for connecting wire (See local codes) Putty Refrigeration lubricant Clamps or saddles to secure refrigerant tubing Indoor unit 2. Installation Site Selection 2-1. Indoor Unit To prevent abnormal heat generation WARNING and the possibility of fire, do not place obstacles, enclosures and...
  • Page 81: Connecting Indoor Units

    Install the indoor unit more than 1 meter away from any antenna or power lines or connecting wires used for tele- vision, radio, telephone, security system, or intercom. Electrical noise from any of these sources may affect operation. install in a sturdy manner to avoid increased operating noise.
  • Page 82 (2) Connecting indoor unit for SAP-CMRV1934 Outdoor unit Indoor unit ø9.52 (SAP-KMRV74EH, KMRV94EH, KMRV124EH) ø9.52 ø6.35 ø9.52 (SAP-KMRV74EH, KMRV94EH, KMRV124EH) ø9.52 ø6.35 ø9.52 (SAP-KMRV74EH, KMRV94EH, KMRV124EH) ø9.52 ø6.35 Fig. 4b Outdoor unit Indoor unit ø9.52 (SAP-KMRV74EH, KMRV94EH, KMRV124EH) ø9.52 ø6.35 ø9.52 (SAP-KMRV74EH, KMRV94EH, KMRV124EH) ø9.52...
  • Page 83 Outdoor unit Indoor unit ø9.52 (SAP-KMRV74EH, KMRV94EH, KMRV124EH) ø9.52 ø6.35 ø9.52 (SAP-KMRV74EH, KMRV94EH, KMRV124EH) ø9.52 ø6.35 ø9.52 (SAP-KMRV74EH, KMRV94EH, KMRV124EH) ø9.52 ø6.35 ø12.70 (SAP-KRV184EH) ø12.70 ø6.35 Fig. 4e Outdoor unit Indoor unit ø9.52 (SAP-KMRV74EH, KMRV94EH, KMRV124EH) ø9.52 ø6.35 ø9.52 (SAP-KMRV74EH, KMRV94EH, KMRV124EH) ø9.52 ø6.35 ø9.52...
  • Page 84 (4) Connecting indoor unit for SAP-CMRV3144 Outdoor unit Indoor unit ø9.52 (SAP-KMRV74EH, KMRV94EH, KMRV124EH) ø9.52 ø6.35 ø9.52 (SAP-KMRV74EH, KMRV94EH, KMRV124EH) ø9.52 ø6.35 ø9.52 (SAP-KMRV74EH, KMRV94EH, KMRV124EH) ø12.70 ø6.35 ø9.52 (SAP-KMRV74EH, KMRV94EH, KMRV124EH) ø12.70 ø6.35 Flare ø12.70 Union ø9.52 (ø12.70 ø9.52) Supplied Reducer Fig.
  • Page 85 Outdoor unit Indoor unit ø9.52 (SAP-KMRV74EH, KMRV94EH, KMRV124EH) ø9.52 ø6.35 ø9.52 (SAP-KMRV74EH, KMRV94EH, KMRV124EH) ø9.52 ø6.35 ø9.52 (SAP-KMRV74EH, KMRV94EH, KMRV124EH) ø12.70 ø6.35 ø15.88 (SAP-KRV244EH) ø12.70 ø6.35 Flare ø12.70 Union ø15.88 Flare ø12.70 Union ø9.52 (ø12.70 ø15.88) (ø12.70 ø9.52) Locally purchased Supplied Reducer Fig.
  • Page 86: Outdoor Unit

    2-3. Outdoor Unit Exhaust fan AVOID: Hot air heat sources, exhaust fans, etc. (Fig. 5a) Heat source damp, humid or uneven locations. Outdoor unit position the outdoor unit in a protected location where snow will not blow into it. choose a place as cool as possible. Fig.
  • Page 87: Outer Dimensions Of Outdoor Unit

    2-4. Outer Dimensions of Outdoor Unit (1) SAP-CMRV1924 Service valve on narrow tube side (Outer diameter ø 6.35 ) Service valve on wide tube side (Outer diameter ø 9.52 ) Fig. 6a (2) SAP-CMRV1934 Service valve on narrow tube side (Outer diameter ø...
  • Page 88: Diagram Of Outdoor Unit Installation

    Diagram of Outdoor Unit Installation 2-5. Never install only a single indoor unit. Be sure to connect indoor and outdoor units only in combinations that are listed in the catalog or in the Indoor unit D combination table that was provided with the outdoor unit. (Use caution.
  • Page 89: Installation Process

    3. Installation Process Embedding the Tubing and Wiring 3-1. Do not connect tubes to locations that are embedded. Be sure to bind refrigerant tubing and inter-unit cables together with vinyl tape. The power cable must be obtained on-site. (ø3.5: Less than 26 m) Be sure to apply the provided labels to both ends of the inter-unit cables to prevent miswiring.
  • Page 90: Caution Before Connecting Tubes Tightly

    NOTE Copper tubing When reaming, hold the tube end downward and be sure that no copper scraps fall into the tube. (Fig. 9) (3) Remove the flare nut from the unit and be sure to mount Reamer it on the copper tube. (4) Make a flare at the end of copper tube with a flare tool.* (Figs.
  • Page 91: Insulation Of Refrigerant Tubing

    Torque wrench Be sure to match refrigerant CAUTION tubing and electric wiring between indoor and outdoor Spanner units. For more details, refer to Indoor unit “Tubing Check Control” in the Technical & Service Manual. Outdoor unit Fig. 15 3-7. Insulation of Refrigerant Tubing IMPORTANT To prevent heat loss and wet floors due to dripping of con- Insulation...
  • Page 92: Air Purging

    4. Air Purging Air and moisture remaining in the refrigerant system have undesirable effects as indicated below. Therefore, they must be purged completely. Service pressure in the system rises valve on Manifold gauge narrow operating current rises (special for R410A) Service High-pressure valve cooling efficiency drops...
  • Page 93 (4) With the “Lo” knob of the manifold valve open and high-pressure valve (“Hi”) closed completely, run the vacuum pump. Run the pump until the pres- sure is –101 kPa (–76 cmHg). The operation time for the vacuum pump varies with tubing length and the capacity of the pump.
  • Page 94: I Pump Down

    (11) Replace the flare nut on the wide tube service port and fasten the flare nut securely with an adjustable wrench or box wrench. Next, mount the valve cap and tighten it with a torque wrench (the cap needs to be tightened with the torque of 20 N·m (200 kgf ·...
  • Page 95: Wiring Instructions

    5. Wiring Instructions 5-1. General Precautions on Wiring (1) Before wiring, confirm the rated voltage of the unit as shown on its nameplate, then carry out the wiring closely following the wiring diagram. (2) Provide a power outlet to be used exclusively for each unit, with a power supply disconnect and circuit break- er for overcurrent protection provided in the exclusive line.
  • Page 96: Wiring System Diagram

    WARNING WARNING To avoid the risk of electric shock, each air Be sure to comply with local codes on running conditioner unit must be grounded. the wire from the indoor unit to the outdoor unit For the installation of a grounding device, (size of wire and wiring method, etc.).
  • Page 97: How To Connect Wiring To The Terminal

    5-4. How to Connect Wiring to the Terminal 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 7 mm (ACTUAL STRIP...
  • Page 98: Wiring Instructions For The Outdoor Unit

    5-5. Wiring Instructions for the Outdoor Unit CAUTION Be sure to correctly align inter-unit cables A, B, C and D. Outdoor unit A Terminal board Indoor unit A 1 2 3 4 5 6 7 8 9 10 11 12 Power: A is the indoor unit with Terminal board...
  • Page 99: Test Run

    Regulations on wire size differ from locality to locality. For field wiring requirements, please refer to your local electrical codes. Make sure that the installation fully complies with all local and national regulations. (1) Remove access panel “C”. (Fig. 32) (2) Connect the inter-unit wiring and power line Access panel C according to the drawing on the panel side.
  • Page 100: Connecting A Home Automation Device

    7. Connecting a Home Automation device The HA (white) 4P terminal is located on the indoor unit PCB. If a HA device will be used, connect it to this terminal. Also, refer to Section 9. ELECTRIC WIRING DIAGRAM in the outdoor unit installation manual. 8.
  • Page 101: Electric Wiring Diagram

    9. Electric Wiring Diagram Indoor unit SAP-KMRV74/94/124EH SAP-KRV184/244EH TO OUTDOOR UNIT TO OUTDOOR UNIT IND LAMP ASSY IND LAMP ASSY YEL/GRN YEL/GRN 8FA-2-5257-72600-1 8FA-2-5257-68200-0 Fig. 33a Fig. 33b Electric wiring diagram for 2-room multi outdoor unit (CMRV1924EH) COIL COIL REACTANCE DEFROST VALVE 4WAY VALVE 1 2 3 4...
  • Page 102 Electric wiring diagram for 3-room multi outdoor unit (CMRV1934EH) 2P-CONNECTOR COIL COIL REACTANCE DEFROST VALVE 4WAY VALVE CRANKCASE HEATER 1 2 3 4 1 2 3 4 1 2 3 4 TERMINAL PLATE 1 2 3 4 1 2 3 4 1 2 3 4 COIL/OUTDOOR A-TH...
  • Page 103 UNIT COMBINATION TABLES < > List of Combination Table Name of Combination Table Model No. of Outdoor Unit Remarks 2-Room Outdoor Unit Combination Table SAP-CMRV1424EH OI-852-6-4180-810-00-0 2-Room Outdoor Unit Combination Table SAP-CMRV1924EH OI-852-6-4180-865-00-0 3-Room Outdoor Unit Combination Table SAP-CMRV1934EH OI-852-6-4180-811-00-0...
  • Page 104 Otherwise, the air conditioner may not run properly and trouble may occur. Example: When two indoor units are connected If the following holds true • Rated cooling capacity of SAP-CMRV1424EH outdoor unit: C=4 (kW) • Rated cooling capacity of indoor units: K1, K2, ... (kW) Then: C x 2 (200%) K1 + K2 + ..
  • Page 105 < Combinations of operatable indoor units > SAP-CMRV1424EH NOTE (Rated cooling capacity: 4.0 kW) 2.2: SAP-KMRV74EH 2.65: SAP-KMRV94EH 3.5: SAP-KMRV124EH Table 1 Indoor Unit Capacity (kW) COOLING HEATING Indoor Unit Combination Total Performance Total Performance Room Room Room Room Capacity ( Min.
  • Page 106 Be sure to operate the air conditioning system only when 2 or more indoor units have been installed. If operated with only a single unit installed, the returning fluid to the compressor may cause a malfunction. Pub. OI-85264180865000 © SANYO 2006...
  • Page 107 < Combinations of operatable indoor units > NOTE SAP-CMRV1924EH 2.2: SAP-KMRV74EH 2.65: SAP-KMRV94EH (Rated cooling capacity: 5.6 kW) 3.5: SAP-KMRV124EH 5.15: SAP-KRV184EH Table 1 Indoor Unit Capacity (kW) COOLING HEATING Indoor Unit Combination Room Room Total Performance Room Room Total Performance Capacity ( Min.
  • Page 108 Be sure to operate the air conditioning system only when 2 or more indoor units have been installed. If operated with only a single unit installed, the returning fluid to the compressor may cause a malfunction. Pub. OI-85264180811000 © SANYO 2006...
  • Page 109 < Combinations of operatable indoor units > NOTE SAP-CMRV1934EH 2.2: SAP-KMRV74EH (Rated cooling capacity: 5.6 kW) 2.65: SAP-KMRV94EH 3.5: SAP-KMRV124EH 5.15: SAP-KRV184EH Table 1 Indoor Unit Capacity (kW) COOLING HEATING Indoor Unit Combination Room Room Room Total Performance Room Room Room Total Performance Capacity ( Min.
  • Page 110 Be sure to operate the air conditioning system only when 2 or more indoor units have been installed. If operated with only a single unit installed, the returning fluid to the compressor may cause a malfunction. Pub. OI-85264180812001 © SANYO 2006...
  • Page 111 < Combinations of operatable indoor units > NOTE SAP-CMRV2444EH 2.2: SAP-KMRV74EH (Rated cooling capacity: 6.8 kW) 2.65: SAP-KMRV94EH 3.5: SAP-KMRV124EH 5.15: SAP-KRV184EH 7.1: SAP-KRV244EH Table 1 Indoor Unit Capacity (kW) COOLING HEATING Indoor Unit Combination Room Room Room Room Total Performance Room Room Room Room Total Performance Capacity...
  • Page 112 Be sure to operate the air conditioning system only when 2 or more indoor units have been installed. If operated with only a single unit installed, the returning fluid to the compressor may cause a malfunction. Pub. OI-85264180804000 © SANYO 2006...
  • Page 113 < Combinations of operatable indoor units > SAP-CMRV3144EH NOTE (Rated cooling capacity: 8.0 kW) 2.2: SAP-KMRV74EH 2.65: SAP-KMRV94EH 3.5: SAP-KMRV124EH 5.15: SAP-KRV184EH 7.1: SAP-KRV244EH Table 1 Indoor Unit Capacity (kW) COOLING HEATING Indoor Unit Combination Room Room Room Room Total Performance Room Room Room...
  • Page 114 SANYO Electric co., Ltd. Osaka, Japan March / 2006 Printed in Japan (T)

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