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SERVICE MANUAL
AIR-CONDITIONER
OUTDOOR UNIT
RAV-GV1101ATP-E
RAV-GV1101ATP-TR
(SPLIT TYPE)
FILE NO. SVM-22070-1
Revised on Jun, 2022

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Summary of Contents for Toshiba RAV-GV1101ATP-TR

  • Page 1 FILE NO. SVM-22070-1 SERVICE MANUAL AIR-CONDITIONER (SPLIT TYPE) OUTDOOR UNIT RAV-GV1101ATP-E RAV-GV1101ATP-TR Revised on Jun, 2022...
  • Page 2: Table Of Contents

    Adoption of R32 Refrigerant Original instruction This air conditioner adopts the HFC refrigerant (R32) which does not destroy the ozone layer. This outdoor unit is designed exclusively for use with R32 refrigerant. Be sure to use in combination with a R32 refrigerant indoor unit. CONTENTS SAFETY CAUTION ....................
  • Page 3: Safety Caution

    SAFETY CAUTION Please read carefully through these instructions that contain important information which complies with the Machinery Directive (Directive 2006/42/EC), and ensure that you understand them. Some of the details provided in these instructions differ from the service manual, and the instructions provided here take precedence.
  • Page 4 Definition of Protective Gear When the air conditioner is to be transported, installed, maintained, repaired or removed, wear protective gloves and “safety” work clothing. In addition to such normal protective gear, wear the protective gear described below when undertaking the special work detailed in the table below.
  • Page 5 Warning Indications on the Air Conditioner Unit [Confirmation of warning label on the main unit] Confirm that labels are indicated on the specified positions If removing the label during parts replace, stick it as the original. This mark is for R32 refrigerant only. Refrigerant type is written on nameplate of outdoor unit.
  • Page 6 CAUTION CAUTION Do not touch the aluminum fins Do not touch the aluminum fins of the of the unit. unit. Doing so may result in injury. Doing so may result in injury. CAUTION CAUTION BURST HAZARD BURST HAZARD Open the service valves before the operation, Open the service valves before otherwise there might be the burst.
  • Page 7 Precaution for Safety The appliance shall be installed in accordance with national wiring regulations. Capacity shortages of the power circuit or an incomplete installation may cause an electric shock or fire. DANGER Before carrying out the installation, maintenance, repair or removal work, be sure to set the circuit breaker to the OFF position.
  • Page 8 When you access inside of the electric cover to repair electric parts, wait for about five minutes after turning off the breaker. Do not start repairing immediately. Otherwise you may get electric shock by touching terminals of high-voltage capacitors. Natural discharge of the capacitor takes Electric about five minutes.
  • Page 9 When performing repairs using a gas burner, replace the refrigerant with nitrogen gas because the oil that coats the pipes may otherwise burn. When repairing the refrigerating cycle, take the following measures. 1) Be attentive to fire around the cycle. When using a gas stove, etc., be sure to put out fire before work;...
  • Page 10 When the refrigerant gas leaks, find up the leaked position and repair it surely. If the leaked position cannot be found up and the repair work is interrupted, pump-down and tighten the service valve, otherwise the refrigerant gas may leak into the room. When gas touches to fire such as fan heater, stove or cocking stove, it may generate noxious gases, causing a fire though the refrigerant gas itself is innocuous.
  • Page 11 Only a qualified installer ( 1) or qualified service person ( 1) is allowed to install the air conditioner. If the air conditioner is installed by an unqualified individual, a fire, electric shocks, injury, water leakage, noise and/or vibration may result. Before starting to install the air conditioner, read carefully through the Installation Manual, and follow its instructions to install the air conditioner.
  • Page 12 Refrigerant R32 This air conditioner adopts a new HFC type refrigerant (R32) which does not deplete the ozone layer. 1. Safety Caution Concerned to Refrigerant R32 Be sure that water, dust, the former refrigerant or the former refrigerating oil is not mixed into the refrigerating cycle of the air conditioner with refrigerant R32 during installation work or service work.
  • Page 13 <Caution items> 1) The opposite side dimension of the air-conditioner's flared nut using R32 and the shape of the charge port are the same as those of R410A. 2) Be careful not to charge refrigerant by mistake. Should the different type of refrigerant mix in, be sure to recharge the refrigerant 3) Do not mix the other refrigerant or refrigerating oil with the refrigerant.
  • Page 14 4. Tools Tools exclusive for R32 (The following tools for R410A are required.) : R32 tools available : Partly unavailable, : R410A tools unavailable Installation/service tools Applicability to R32 air Applicability to R22 air conditioner or not conditioner or not Tools / Equipment specification 1 Flare tool...
  • Page 15: Specifications

    1. SPECIFICATIONS 1-1. Outdoor Unit Model name Outdoor unit RAV-GV1101ATP* 1 phase 220-240V, 50Hz 1 phase 220V, 60Hz Power supply (Power exclusive to outdoor is required) Type Hermetic compressor Compressor Motor (kW) Pole Refrigerant charged (kg) Refrigerant control Pulse motor valve Standard length Min.
  • Page 16: Operation Characteristic Curve

    1-2. Operation Characteristic Curve <Cooling> <Heating> 18.0 18.0 16.0 16.0 14.0 14.0 12.0 12.0 10.0 10.0 Compressor speed (RPS) Compressor speed (RPS) 1-3. Capacity variation ratio according to temperature <Cooling> <Heating> Condition Indoor: 27°C DB/19°C WB Indoor Air flow volume: High Condition Pipe length: 7.5m Indoor: 20°C DB...
  • Page 17: Construction Views (External Views)

    2. CONSTRUCTION VIEWS (EXTERNAL VIEWS) - 17 -...
  • Page 18: Systematic Refrigerating Cycle Diagram

    3. SYSTEMATIC REFRIGERATING CYCLE DIAGRAM INDOOR UNIT Indoor heat exchanger Max. : 30m Cross flow fan Min. : 5m Pressure measurement Deoxidized copper pipe Gauge attaching port Outer dia. : 9.52mm Vacuum pump connecting port Thickness : 0.8mm Sectional shape Deoxidized copper pipe of heat insulator Outer dia.
  • Page 19: Wiring Diagram

    4. WIRING DIAGRAM - 19 -...
  • Page 20: Specifications Of Electrical Parts

    5. SPECIFICATIONS OF ELECTRICAL PARTS Parts name Type Specifications NA220A1F-20N Output 1500W Compressor Fan motor ICF-280-A71-1 Output 71W 3-Way Valve coil SQ-D27012-000752 CAM-MD12TCTH-6 PMV coil OFF : 4.5MPa ACB-4UB166W High pressure SW 10mH, 20A Reactor CH-101-Z-T MCC-1768 P.C. board AC250V, 25A Fuse (Mounted on P.C.
  • Page 21: Refrigerant R32

    6. . REFRIGERANT R 6. When an air conditioning system charged with a This air conditioner adopted the R32 refrigerant which does not damage the ozone layer. large volume of refrigerant is installed in a small room, it is necessary to exercise care so that, The working pressure of the refrigerant R32 is even when refrigerant leaks, its concentration 1.6 times higher than conventional refrigerant...
  • Page 22 Table 6-2-1 Thicknesses of annealed copper pipes Thickness (mm) Nominal diameter Outer diameter (mm) 0.80 0.80 0.80 0.80 12.7 0.80 0.80 15.9 1.00 1.00 1. Join For copper pipes, flare joints or socket joints are used. Prior to use, be sure to remove all contaminants. a) Flare Joints Flare joints used to connect the copper pipes cannot be used for pipings whose outer diameter exceeds 20 mm.
  • Page 23 c) Insertion of Flare Nut d) Flare Processing ØD Make certain that a clamp bar and copper pipe have been cleaned. By means of the clamp bar, perform the flare processing correctly. R410A/R32 or conventional flare tool. Use either a flare tool for Flare processing dimensions differ according to the type of flare tool.
  • Page 24 Fig. 6-2-2 Relations between flare nut and flare seal surface 2. Flare Connecting Procedures and Precautions a) Make sure that the flare and union portions do not have any scar or dust, etc. b) Correctly align the processed flare surface with the union axis. c) Tighten the flare with designated torque by means of a torque wrench.
  • Page 25: Tools

    6-3. Tools 6-3-1. Required Tools Refer to the “4. Tools” (Page 14) 6-4. Recharging of Refrigerant When it is necessary to recharge refrigerant, charge the specified amount of new refrigerant according to the following steps. Recover the refrigerant, and check no refrigerant remains in the equipment.
  • Page 26: Brazing Of Pipes

    3. Types of flux 6-5. Brazing of Pipes • Noncorrosive flux Generally, it is a compound of borax and boric 6-5-1. Materials for Brazing acid. 1. Silver brazing filler It is effective in case where the brazing temperature is higher than 800°C. Silver brazing filler is an alloy mainly composed of silver and copper.
  • Page 27 6-5-3. Brazing As brazing work requires sophisticated techniques, experiences based upon a theoretical knowledge, it Flow meter must be performed by a person qualified. In order to prevent the oxide film from occurring in the pipe interior during brazing, it is effective to Stop valve proceed with brazing while letting dry Nitrogen gas flow.
  • Page 28: Instructions For Re-Use Piping Of R22 Or R410A

    6-6. Instructions for Re-use Piping of R22 or R410A Instruction of Works: 5. When a commercially available dryer is attached to The existing R22 and R410A piping can the existing pipes. be reused for our super digital inverter There is the possibility that copper green rust has been R32 products installations.
  • Page 29 6-6-4. Final Installation Checks Existing pipes: Cannot be used. Are there scratches or dents on the existing pipes? • Use new pipes. Is it possible to operate the existing air conditioner? • After the existing air conditioner is operated in cooling mode for approx.
  • Page 30: Charging Addition Refrigerant

    6-6-5. Handling of Existing Pipe 6-6-6. Recovering Refrigerant When using the existing pipe, carefully check it for Use the refrigerant recovery equipment to recover the following: the refrigerant. • Wall thickness (within the specified range) 6-7. Charging additional refrigerant • Scratches and dents Amount of additional refrigerant shall be restricted by the •...
  • Page 31: General Safety Precautions For Using R32 Refrigerant

    6-8. General safety precautions for using R32 refrigerant 6-8-1. Recovery 6-8-2. Decommissioning • When removing refrigerant from a system, either • Before carrying out this procedure, it is essential that for servicing or decommissioning, it is recommended the technician is completely familiar with the good practice that all refrigerants are removed safely.
  • Page 32 6-8-3. Pump down process 1. Turn off the Air Conditioner system. 2. Connect the charge hose from the manifold valve to the service port of the packed valve at gas side. 3. Turn on the Air Conditioner system in cooling operation more than 10 minutes.
  • Page 33: Outdoor Control Circuit

    7. OUTDOOR CONTROL CIRCUIT 7-1. Outdoor Print Circuit Board - 33 -...
  • Page 34: Outdoor Unit Control

    7-2. Outdoor unit controls 1. PMV (Pulse Motor Valve) control 1) PMV is controlled between 40 to 500 pulsed during operation. 2) In cooling operation, PMV is usually controlled with the temperature difference between TS sensor and TC sensor aiming 1 to 5K as the target value. 3) In heating operation, PMV is usually controlled with the temperature difference between TS sensor and TE sensor aiming –1 to 4K as the target value.
  • Page 35 3. Outdoor fan control Revolution frequency allocation of fan taps [rpm] GV1101 3-1) Cooling fan control The outdoor fan is controlled by TL sensor, TO sensor and the operation frequency. The outdoor fan is controlled by every 1 tap of DC fan control (15 taps).
  • Page 36 3-2) Heating fan control The outdoor fan is controlled by TE sensor, TO sensor and the operation frequency. (Control from minimum W1 to maximum (according to the following table)) For 3 minutes after the operation has started, the maximum fan tap corresponding to the zone in the following table is fixed and then the fan is controlled by temperature of TE sensor.
  • Page 37 Power-ON condition TD < 30˚C Power-ON condition TD < 30˚C 0˚C 2˚C No power No power -1˚C 1˚C Intermittent power-ON Intermittent power-ON 10 minutes: ON / 10 minutes: ON / -2˚C 0˚C 5 minutes: OFF 5 minutes: OFF Output [40W or equivalent] Output [40W or equivalent] -3˚C -1˚C...
  • Page 38 7. Current release value shift control 1) This control purposes to prevent troubles of Current release control value ( 1) the electronic parts such as the compressor driving elements and the compressor during GV1101 cooling operation. Temperature range 50°C ≤ TO 2) The current release control value ( 1) is selected from the following table according to 13.6...
  • Page 39 1) In heating operation, defrost operation is performed when TE sensor satisfies any condition in A zone to D zone. 2) During defrosting operation, it finishes if TE sensor continued 12°C or higher for 3 seconds or continued 7°C ≤ TE < 12°C for 1 minute. The defrost operation also finishes when it continued for 10 minutes even if TE sensor temperature was 7°C or lower.
  • Page 40: Troubleshooting

    8. TROUBLESHOOTING 8-1. Summary of Troubleshooting <Wired remote controller type> 1. Before troubleshooting 1) Required tools/instruments • ⊕ and ⊖ screwdrivers, spanners, radio cutting pliers, nippers, push pins for reset switch • Tester, thermometer, pressure gauge, etc. 2) Confirmation the following points before check a) The following operations are normal.
  • Page 41 <Wireless remote controller type> 1. Before troubleshooting 1) Required tools/instruments • ⊕ and ⊖ screwdrivers, spanners, radio cutting pliers, nippers, etc. • Tester, thermometer, pressure gauge, etc. 2) Confirmation the following points before check a) The following operations are normal. 1.
  • Page 42: Troubleshooting

    8-2. Troubleshooting 8-2-1. Outline of judgment The following method can be done to check whether the problem occurred in indoor or outdoor unit. The error is indicated by indication lamp on the display of the indoor unit. (sensors of the receiving part) The indoor unit monitors the operating status of the air conditioner, and the blocked contents of self-diagnosis are displayed restricted to the following cases if a protective circuit works.
  • Page 43 Lamp indication Check code Cause of trouble occurrence Operation Timer Ready Heat exchanger sensor (TCJ) error ⎫ ⎪ Heat exchanger sensor (TC) error ⎬ Indoor unit sensor error ⎪ ⎭ Alternate flash Heat exchanger sensor (TA) error Discharge temp. sensor (TD) error ⎫...
  • Page 44 8-2-3. Monitoring function of wired remote controller <RBC-AMT > TEMP. ON / OFF TIMER SET MODE TIME SAVE VENT FILTER RESET TEST SWING/FIX UNIT LOUVER Content Enter the service monitoring mode using the remote controller to check the sensor temperature or operation status of the remote controller, indoor unit, and outdoor unit.
  • Page 45 CODE No. Data name Unit CODE No. Data name Unit Room temperature °C Outdoor heat exchanger (Coil) temperature (TE) °C (Remote controller) Outside temperature (TO) °C Indoor suction temperature (TA) °C Compressor discharge temperature (TD) °C Indoor heat exchanger (Coil) °C Compressor suction temperature (TS) °C...
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  • Page 47 - 47 -...
  • Page 48 Error mode detected by indoor unit Operation of diagnostic function Judgment and measures Check Status of Cause of errors Condition code air conditioner 1. Check cables of remote controller and communication adapters. No communication from remote Stop Displayed when controller (including wireless) and (Automatically Remote controller LCD display OFF (Disconnection) error is detected...
  • Page 49 Error mode detected by outdoor unit Operation of diagnostic function Check code Status of Judgment and measures Cause of errors Condition air conditioner Indoor unit 1. Check discharge temp. sensor (TD). Disconnection, short of discharge Displayed when Stop temp. sensor (TD) error is detected 2.
  • Page 50 Operation of diagnostic function Check code Status of Judgment and measures Cause of errors Condition air conditioner Indoor unit Displayed when 1. Check outdoor P.C. board. Current detection circuit error Stop error is detected (AC current detection circuit) 1. Check case thermostat and its connector 2.
  • Page 51 Error mode detected by remote controller or central controller (TCC-LINK) Operation of diagnostic function Judgment and measures Status of Cause of errors Check code Condition air conditioner Power supply error of remote controller, Indoor EEPROM error 1. Check remote controller inter-unit wiring. No communication with master indoor unit 2.
  • Page 52 Contents Error Display When the errors were overlapped, the latest error is displayed. When D800 to D804 are slowly flashing or D805 is flashing, push and hold SW01 and SW02 simultaneously for 5 seconds or more. The error display changes to the error which is generated. : ON, : OFF, : Rapid flashing (5 times /second)
  • Page 53 8-2-5. Diagnostic Procedure for Each Check Code (Outdoor Unit) 1) This section describes the diagnostic method for each check code displayed on the wired remote controller. 2) In some cases, a check code indicates multiple symptoms. In this case, confirm LED display on the outdoor unit to narrow the contents to be confirmed. 3) The check code on the wired remote controller is displayed only when the same error occurred continu- ously by multiple times while LED of the outdoor unit displays even an error which occurred once.
  • Page 54 Check Outdoor Check and troubleshooting code LED display (Item without special mention Indicates part of outdoor unit.) — [Indoor/Outdoor communication error] [E04] Is setting of group address Check CODE No. [14]. of remote controller correct? Refer to “10 ADDRESS SETUP” Are inner wiring and indoor/outdoor Correct wiring indoor/outdoor control wires (1, 2, 3) correct?
  • Page 55 Check Outdoor Check and troubleshooting code LED display (Item without special mention Indicates part of outdoor unit.) [F04] [Discharge temp. sensor (TD) error] Is CN601 connection correct? Correct connector. Is resistance value of TD sensor correct? Sensor error → Replace Check outdoor P.C.
  • Page 56 Check Outdoor Check and troubleshooting code LED display (Item without special mention Indicates part of outdoor unit.) [F08] [Outside air temp. sensor (TO) error] Correct connector. Is CN602 connection correct? Is resistance value of TO sensor correct? Sensor error → Replace Check outdoor P.C.
  • Page 57 Check Outdoor Check and troubleshooting code LED display (Item without special mention Indicates part of outdoor unit.) [F31] [EEPROM error] Check outdoor P.C. board. Defect → Replace [H01] [Compressor break down] Is power supply voltage correct? Correct power supply line. 50 Hz : AC 198 to 264 V 60 Hz : AC 198 to 242 V Is wire connection correct?
  • Page 58 Check Outdoor Check and troubleshooting code LED display (Item without special mention Indicates part of outdoor unit.) [H03] [Current detection circuit error] Check outdoor P.C. board. Defect → Replace [H04] [Case thermostat operation] Are CN500 connection and Correct connector. case thermostat correct? Case thermostat error →...
  • Page 59 Check Outdoor Check and troubleshooting code LED display (Item without special mention Indicates part of outdoor unit.) [P04] [High pressure SW system error] Wiring check, Does high pressure switch operate? Is circuit wiring correct? Correct. Are parts of Parts check high pressure switch correct? Defective →...
  • Page 60 Check Outdoor Check and troubleshooting code LED display (Item without special mention Indicates part of outdoor unit.) [P05] [Power supply error] Is the power supply voltage is lower than or over the range? Confirm power supply, etc. 50 Hz : AC 198 to 264 V 60 Hz : AC 198 to 242 V Check outdoor P.C.
  • Page 61 Check Outdoor Check and troubleshooting code LED display (Item without special mention Indicates part of outdoor unit.) [P19] [4-way valve inverse error] Is the 4-way valve Is operation of 4-way valve coil is normal? correct? Replace coil (Check the resistance value (Check pipe temp.
  • Page 62 Check Outdoor Check and troubleshooting code LED display (Item without special mention Indicates part of outdoor unit.) [P20] [High pressure protective operation] Is service valve fully opened? Open service valve fully. Reset the power supply and then make a test run Cooling season matching to the season.
  • Page 63 Check Outdoor Check and troubleshooting code LED display (Item without special mention Indicates part of outdoor unit.) [P22] [Fan system error] Is the power supply voltage is lower than or over the range? Check wiring construction. 50 Hz : AC 198 to 264 V Ask to repair the power supply.
  • Page 64 Check Outdoor Check and troubleshooting code (Item without special mention Indicates part of outdoor unit.) LED display [P26] [Short-circuit of compressor driving elements] Are connections of compressor lead and reactor lead correct? Correct wiring. (Check referring to Wiring diagram.) Does the same error occur in Replace outdoor P.C.
  • Page 65 8-2-6. Diagnostic Procedure for Each Check Code (Outdoor Unit) Temperature sensor Temperature – Resistance value characteristic table TA, TC, TCJ, TE, TS, TO sensors TD,TL sensors Representative value Representative value Resistance value (kΩ Ω Ω Ω Ω ) Resistance value (kΩ Ω Ω Ω Ω ) Temperature Temperature (°C)
  • Page 66 8-3. Table Inspection of outdoor unit main parts Parts name Checking procedure Compressor Measure the resistance value of each winding by using the tester. (Model : NA220A1F-20N) Position Resistance value Red – White 1.22 Ω White – Black White Black Black –...
  • Page 67: Setup At Local Site And Others

    9. SETUP AT LOCAL SITE AND OTHERS 9-1. Troubleshooting based on information displayed on remote controller <RBC-AMT > (1) Checking and testing When a trouble occurs to an air conditioner, a check code and indoor unit No. are displayed on the display window of the remote controller.
  • Page 68 <RBC-ASCU11- > (1) Confirmation and check If a problem occurs with the air conditioner, the OFF timer indicator alternately shows the check code and the indoor Unit No. in which the problem occurred. Check code The indoor Unit No. in which the problem occurred.
  • Page 69: Group Control Operation

    9-2. Group Control Operation In a group control, operation of maximum 8 indoor units can be controlled by a remote controller. The indoor unit connected with outdoor unit (Individual/Master of twin) controls room temperature according to setting on the remote controller. <System example>...
  • Page 70 ■ Indoor unit power-ON sequence Power ON • The unit without power feed waits entirely → Waiting status is released by system start • Reboot when power is fed on the way <By feed unit> <Automatic address judgment> Gr construction check 3 minutes elapse Normal ∗...
  • Page 71: Outdoor Unit

    9-3. Outdoor Unit Various displays and various operations are enabled by push buttons (service) switches and LED on the outdoor control P.C. board. Service switch (SW01, SW02) operations LED display • 4 patterns are provided for LED display. : ON, : OFF, : Rapid flashing (5 times/second), : Slow flashing (Once/second)
  • Page 72 9-3-2. Various settings on outdoor unit (Existing piping etc.) (1) Service switch setting Various settings are available by setting service switches. [Operating method] 1) Check LED display is the initial status. If it is not so, set the initial status. 2) Push and hold SW01 for 5 seconds or more and then check D804 flashes slowly.
  • Page 73 In the case to return the setting to one at shipment from factory When to return the setting to one at shipment from the factory due to reinstallation and so on, the setting can be returned in the following procedure. 1) Check LED display is the initial status.
  • Page 74 Setting method 1. Check the LED display is an initial state. (Fig. 1) If the initial status is not established (if D805 is flashing), hold down the SW01 and SW02 service switches simultaneously for at least 5 seconds to return the LED displays to the initial status. 2.
  • Page 75 Cancel 1. 1. and 2. of the setting methods are executed. 2. Several times press SW01 to set the LED displays of the selection mode shown below. (Fig. 6) 3. Press SW02, D805 is turned off. (Fig. 7) 4. Hold down SW02 for at least 5 seconds, and when D804 flashes slowly and D805 lights, and the setting is completed.
  • Page 76 9-3-3. Service support function (LED display, service switch operating method) 1. LED display switching 1-1. Display switching list The displayed contents of LED D800 to D805 on the outdoor P.C. board can be switched by handling the service switches SW01 and SW02. [Operating method] 1) Check LED display is the initial status.
  • Page 77 1-2. Error display The error which is occurring at present and the latest error (the latest error data including one which is occur- ring now) can be confirmed by lighting LED D800 to D805 on the outdoor control P.C. board. A.
  • Page 78 C. Sensor, current, compressor operation frequency, PMV opening display The values, such as the temperature sensor or the current value, which the controller detects are easily confirmed. * Temperature sensor: TD, TE, TL, TS, TO, TH, TA, TC, TCJ LED display Temp.
  • Page 79 2. Special operation for maintenance check (SW01 and SW02 operations) The following special operations for maintenance check can be performed by handling the service switches SW01 and SW02. [Operating method] 1) Check LED display is the initial status. If it is not so, set the initial status. 2) Push and hold SW01 for 5 seconds or more and then check D804 flashes slowly.
  • Page 80: Applicable Control Of Outdoor Unit

    9-4. Applicable Control of Outdoor unit The following controls are enabled by connecting the part “Application control kit” (TCB-PCOS1E2) sold separately. (1) Power peak cut control * The capacity of the outdoor unit is saved by the Demand signal from outside and corresponds to the temporary peak cut.
  • Page 81: Address Setup

    10. ADDRESS SETUP 10-1. Address Setup Procedure When an outdoor unit and an indoor unit are connected, or when an outdoor unit is connected to each indoor unit respectively in the group operation even if multiple refrigerant lines are provided, the automatic address setup completes with power-ON of the outdoor unit.
  • Page 82: Address Setup & Group Control

    10-2. Address Setup & Group Control <Terminology> Indoor unit No. : N - n = Outdoor unit line address N (Max. 30) - Indoor unit address n (Max. 64) Group address : 0 = Single (Not group control) 1 = Master unit in group control 2 = Sub unit in group control Master unit (= 1) : The representative of multiple indoor units in group operation sends/receives signals to/from the remote controllers and sub indoor units.
  • Page 83 10-2-2. Automatic Address Example from Unset Address (No miswiring) 1. Standard (One outdoor unit) 1) Single (Master/Sub) Individual Only turning on source power supply (Automatic completion) • Header unit: The header unit receives the indoor unit data (thermo status) of the follower (Without identical line address &...
  • Page 84: Remote Controller Wiring

    10-3. Remote Controller Wiring • Strip off approx. 9 mm the wire to be connected. Wiring diagram • For single system, use non polarity, 2 core wire is used for wiring of the remote controller. Terminal block for remote controller Terminal block (0.5 mm²...
  • Page 85: Manual Address Setting Using The Remote Controller

    10-5. Manual address setting using the remote controller Procedure when setting indoor units’ addresses first under the condition that indoor wiring has been completed and outdoor wiring has not been started (manual setting using the remote controller) Wiring example of 2 refrigerant lines Refrigerant line 1 Refrigerant line 2 Outdoor...
  • Page 86 <Indoor unit address> 13 13 13 13 13 Push the TEMP. buttons repeatedly to set the CODE No. to Push the TIME buttons repeatedly to set an indoor unit address. Push the button. (It is OK if the display turns on.) <Group address>...
  • Page 87 Confirming the indoor unit addresses and the position of an indoor unit using the remote controller Confirming the numbers and positions of indoor units To know the indoor unit addresses though position of the indoor unit is recognized When the unit is individual (the indoor unit is paired with a wired remote controller one-to-one), or it is a group-controlled one.
  • Page 88 To find an indoor unit’s position from its address When checking unit numbers controlled as a group <RBC-AMT > TEMP. ON / OFF TIMER SET MODE TIME SAVE VENT Stop FILTER RESET TEST SWING/FIX UNIT LOUVER (Execute it while the units are stopped.) The indoor unit numbers in a group are indicated one after another.
  • Page 89 <Maintenance/Check list> Aiming in environmental preservation, it is strictly recommended to clean and maintain the indoor/outdoor units of the operating air conditioning system regularly to secure effective operation of the air conditioner. It is also recommended to maintain the units once a year regularly when operating the air conditioner for a long time.
  • Page 90: Replacement Of The Service P.c. Board

    11. REPLACEMENT OF THE SERVICE P.C. BOARD(MCC-1646) ! WARNING Don’t open the inverter cover before 1 minute after power has been turned off because an electric shock may be occurred. Assembly steps: LED side of P.C.Board (MCC-1646) shall be inserted to hook① along the guide② of mold. Switch side of P.C.Board (MCC-1646) shall be pressed to hook③...
  • Page 91: How To Exchange Compressor

    12. HOW TO EXCHANGE COMPRESSOR 12-1. Exchanging Procedure of Compressor (Outline) START Open PMV forcedly and then recover refrigerant Has refrigerant recovery work been done? using a refrigerant recovery unit. Turn off the leakage breaker. Never recover the refrigerant to the outdoor unit. For the refrigerant recovery work during reinstallation Remove the defective compressor.
  • Page 92: Detachments

    13. DETACHMENTS Part name Procedure Remarks Common procedure CAUTION Never forget to put on the gloves at working time, otherwise an injury will be caused by the parts, etc. Valve cover 1. Detachment Stop operation of the air conditioner, and turn off the main switch of the breaker for air conditioner.
  • Page 93 Part name Procedure Remarks 1. How to remove Front cabinet 1) Perform 1 of 1. Motor base 2) Remove the screw between front cabinet and side cabinet (right). (HEX-ST-SCREW Ø4 × 10 , 1 pc.) 3) Remove the screw between front cabinet and inverter.
  • Page 94 Part name Procedure Remarks 1. Detachment Inverter assembly 1) Perform work of item 1 of Screws 2) Take off screws of the upper part of the front cabinet. (ST1T Ø4 ×10L, 2 pcs.) • If removing the inverter cover under this condition, P .C.
  • Page 95 Part name Procedure Remarks Connector Inverter assembly Connection to compressor (3P:white) Reactor (2P:white) CN300・・・ Outdoor fan (3P:white) CN700・・・ PMV coil (6P:white) CN601・・・ TD sensor (3P:white) Inverter CN603・・・ TS sensor (3P:white) assembly CN600・・・ TE sensor (2P:white) CN602・・・ TO sensor (2P:yellow) CN501・・・High pressure switch (3P : green) CN500・・・Case thermo(2P : blue) CN704・・・...
  • Page 96 Part name Procedure Remarks 1) Remove lead wire that are connected from Control P.C. control board to other parts. board 1.Lead wire : connect with terminal block assembly black, white, orange(single phase) earthed lines (black),(green&yellow)・・・ 2 pcs. 2.Connector CN807 Display P.C.board (10P : white) Please cut the bunding band that tie lead wire of compressor reactor, all sensor lead and Sub board...
  • Page 97 Part name Procedure Remarks 1) Perform works of items 1 of 1 and 2 , 3 . Rear cabinet 2) Take off fixed screws for the bottom plate. Rear cabinet (ST1T Ø4 × 10L, 2 pcs.) 3) Take off fixed screw for the valve mounting plate.
  • Page 98 Part name Procedure Remarks 1) Perform works of items 1 of 1 and 2 , Compressor Partition plate 2) Discharge refrigerant gas. 3) Remove the partition plate. (ST1T Ø4 × 10L, 5 pcs.) 4) Remove the terminal covers of the Thermo-comp, compressor, and disconnect lead wires of the compressor and the compressor...
  • Page 99 Part name Procedure Remarks 1. Detachment Pulse Motor Valve (PMV) coil 1) Perform works of items Attachment state 2) Release the coil from the concavity by turning it, and remove coil from the PMV. 2. Attachment COIL-PMV 1) Put the coil deep into the bottom posi- tion.
  • Page 100: Exploded Views And Parts List

    14. EXPLODED VIEWS AND PARTS LIST - 100 -...
  • Page 101 Model name Location Part No. Description RAV-GV1101ATP-E RAV-GV1101ATP-TR 43T42383 BASE PLATE ASSEMBLY 43T00792 ASM-CABI-FRONT 43T00763 RIGHT SIDE CABINET ASSEMBLY 43T00747 ASM-COAT-C-S-L 43T00762 PACKED-VALVE COVER ASSEMBLY 43T00789 ASM-COAT-CABI-UP 43T39410 ASM-MOTOR-BASE-COAT 43T41551 COMPRESSOR 43T46424 4 WAY VALVE 43046571 COIL-V-3WAY 43T46389 BODY-PMV 43T63338...
  • Page 102 <Inverter assembly> TE Sensor TS Sensor TD Sensor TO Sensor TL Sensor Model name Location Part No. Description RAV-GV1101ATP-E RAV-GV1101ATP-TR 43TN9692 PC BOARD ASSY, MCC-1768 43T6W816 PC BOARD ASSY (MCC-1646) 43T62313 PC PLATE BASE 43T61320 BASE, PC BOARD 43T60423 SERV-TERMINAL...
  • Page 103 WARNINGS ON REFRIGERANT LEAKAGE Check of Concentration Limit The room in which the air conditioner is to be installed requires a design that in the event of refrigerant gas leaking out, its concentration will not exceed a set limit. The refrigerant R32 which is used in the air conditioner is safe, without the toxicity or combustibility of ammonia, and is not restricted by laws to be imposed which protect the ozone layer.
  • Page 104 144/9 MOO 5, BANGKADI INDUSTRIAL PARK, TIVANON ROAD, TAMBOL BANGKADI, AMPHUR MUANG, PATHUMTHANI 12000, THAILAND.

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