Toshiba Puron ADVANCE RAV-BP301AT2P-UL Service Manual
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Toshiba Puron ADVANCE RAV-BP301AT2P-UL Service Manual

Toshiba Puron ADVANCE RAV-BP301AT2P-UL Service Manual

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SERVICE MANUAL
AIR-CONDITIONER
OUTDOOR UNIT
<SUPER DIGITAL INVERTER>
RAV-BP301AT2P-UL
RAV-BP361AT2P-UL
RAV-BP421AT2P-UL
RAV-BP481AT2P-UL
R454B
(SPLIT TYPE)
FILE NO. SVM-24061
November, 2024

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Summary of Contents for Toshiba Puron ADVANCE RAV-BP301AT2P-UL

  • Page 1 FILE NO. SVM-24061 SERVICE MANUAL AIR-CONDITIONER (SPLIT TYPE) OUTDOOR UNIT <SUPER DIGITAL INVERTER> RAV-BP301AT2P-UL RAV-BP361AT2P-UL RAV-BP421AT2P-UL RAV-BP481AT2P-UL R454B November, 2024...

  • Page 2: Table Of Contents

    Adoption of R454B Refrigerant This Air Conditioner is a new type which adopts a new refrigerant HFC (R454B) instead of the conventional in order to prevent destruction of the ozone layer. WARNING Cleaning of the air filter and other parts of the air filter involves dangerous work in high places, so be sure to have a service person do it.

  • Page 3: Safety Caution

    SAFETY CAUTION Please read carefully through these instructions that contain important information and ensure that you understand them. Generic Denomination: Air Conditioner Definition of Qualified Installer or Qualified Service Person The air conditioner must be installed, maintained, repaired and removed by a qualified installer or qualified service person.
  • 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

    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. MEANINGS OF SYMBOLS DISPLAYED ON THE UNIT This mark is for R454B refrigerant only.
  • 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

    Precaution for Safety The manufacturer shall not assume any liability for the damage caused by not observing the description of this manual. DANGER Before carrying out the installation, maintenance, repair or removal work, be sure to set the circuit breaker to the OFF position. Otherwise, electric shocks may result. Before opening the intake grille of the indoor unit or service panel or valve cover of the outdoor unit, set the circuit breaker to the OFF position.
  • Page 8 WARNING Use wiring that meets the specifications in the Installation Manual and the stipulations in the local regulations and laws. Use of wiring which does not meet the specifications may give rise to electric shocks, electrical leakage, smoking and/or a fire. The appliance shall be installed in accordance with national wiring regulations.
  • Page 9 The refrigerant used by this air conditioner is the R454B. Check the used refrigerant name and use tools and materials of the parts which match with it. For the products which use R454B refrigerant, the refrigerant name is indicated at a position on the outdoor unit where is easy to see.
  • Page 10 Once the repair work has been completed, check for refrigerant leaks, and check the insulation resistance and water drainage. Then perform a trial run to check that the air conditioner is running properly. After repair work has finished, check there is no trouble. If check is not executed, a fire, electric shock or injury may be caused.

  • Page 11: Cautions On Installation/Service

    Refrigerant (R454B) This air conditioner adopts HFC type refrigerant (R454B) which does not deplete the ozone layer. 1. Safety Caution Concerned to Refrigerant The pressure of R454B is higher than of that of the former refrigerant (R22), (R410A). Accompanied with change of refrigerant, the refrigerating oil has been also changed. Therefore, 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 during installation work or service work.
  • Page 12 4. Tools 1. Required Tools for R454B Mixing of different types of oil may cause a trouble such as generation of sludge, clogging of capillary, etc. Accordingly, the tools to be used are classified into the following three types. 1) Tools exclusive for R454B (Those which cannot be used for conventional refrigerant (R22), (R410A) 2) Tools exclusive for R454B, but can be also used for conventional refrigerant (R22), (R410A) 3) Tools commonly used for R454B and for conventional refrigerant (R22), (R410A) The table below shows the tools exclusive for R454B and their interchangeability.

  • Page 13: Specifications

    1. SPECIFICATIONS 1-1. Outdoor Unit Capacity Rank RAV-BP301AT2P-UL RAV-BP361AT2P-UL RAV-BP421AT2P-UL RAV-BP481AT2P-UL Outdoor Model 70 to 89 70 to 89 70 to 89 70 to 89 Indoor Min - Max DB ( Cooling 5 to 115 5 to 115 5 to 115 5 to 115 Outdoor Min - Max DB ( Outdoor Min - Max DB (...

  • Page 14: Operation Characteristic Curve

    1-2. Operation Characteristic Curve (RAV-BP301AT2P-UL, RAV-BP361AT2P-UL) <Cooling> <Heating> RAV-BP361AT2P-UL RAV-BP361AT2P-UL RAV-BP301AT2P-UL RAV-BP301AT2P-UL Compressor Speed (RPS) Compressor Speed (RPS) Capacity variation ratio according to temperature <Cooling> < > Conditions Conditions Indoor : DB 70 F/WB 60 Indoor : DB 80 F/WB 67 (DB 21.5°C/WB 15.6°C) (DB 26.7°C/WB 19.4°C) Indoor Air Flow : High...
  • Page 15 Operation Characteristic Curve (RAV-BP421AT2P-UL, RAV-BP481AT2P-UL) < > <Cooling> RAV-BP481AT2P-UL RAV-BP481AT2P-UL RAV-BP421AT2P-UL RAV-BP421AT2P-UL 100 110 Compressor Speed (RPS) Compressor Speed (RPS) Capacity variation ratio according to temperature <Cooling> < > Conditions Conditions Indoor : DB 70 F/WB 60 Indoor : DB 80 F/WB 67 (DB 21.5°C/WB 15.6°C) (DB 26.7°C/WB 19.4°C)

  • Page 16: Dimensional Drawing

    2. DIMENSIONAL DRAWING Drain hole 15.0"(380) (Ø 1.0"(25) burring hole) 7.9"(200) 2.4"(60) B legs 0.5"(12) Air intake Air intake Mounting bolt hole ( Ø 0.5"(12) × 0.7"(17) U-shape hole) 3.0"(75) Details of B legs A legs discharge Mounting bolt hole ( Ø...

  • Page 17: Systematic Refrigerating Cycle Diagram

    3. SYSTEMATIC REFRIGERATING CYCLE DIAGRAM 3-1. Indoor Unit • Single type (Combination of 1 indoor unit and 1 outdoor unit) (Indoor unit) Distributor (Strainer incorporated) TCJ sensor Strainer Air heat exchanger TC sensor Heating Cooling Refrigerant pipe Refrigerant pipe at liquid side at gas side (Outer dia : ØB) (Outer dia : ØA)

  • Page 18: Operation Data

    RAV-BP421AT2P-UL, RAV-BP481AT2P-UL Ball valve Packed valve Outer dia. Ø5/8in(15.88mm) Outer dia. Ø3/8in(9.52mm) Pressure Strainer TO sensor switch Fusible Plug TS sensor (Pulse Motor Valve) TL sensor TD sensor Strainer 4-way valve sensor Heat exchanger Muffler Ø8, 2 rows, 62 steps FP1.3 flat fin Distributor Accumulator...

  • Page 19: Wiring Diagram

    4. WIRING DIAGRAM - 19 -...

  • Page 20: Specifications Of Electrical Parts

    5. SPECIFICATIONS OF ELECTRICAL PARTS RAV-BP301AT2P-UL, RAV-BP361AT2P-UL Parts name Type Specifications Compressor 3 phase, 4P, 3750W MTH356SKPC8FQL Fan motor LDF-340-A100-1 Output 100 W 4-way valve coil DXQ-1490 PMV coil CAM-MD12TF-18 High-pressure SW ACB-4UB166W OFF:4.15MPa Reactor CH-57-Z-T;R 8.88~10.01mH, 16A P.C. board MCC-1758 Fuse (Mounted on P.C.

  • Page 21: Refrigerant R454B

    6. REFRIGERANT R454B This air conditioner adopted the refrigerant HFC 6. When an air conditioning system charged with a (R454B 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 R454B even when refrigerant leaks, its concentration is 1.6 times higher than conventional refrigerant...

  • Page 22: Processing Of Piping Materials

    Table 6-2-1 Thicknesses of annealed copper pipes Thickness (In (mm)) R454B Outer diameter (In (mm)) 1/4” (6.4) 0.03” (0.80) 3/8” (9.5) 0.03” (0.80) 1/2” (12.7) 0.03” (0.80) 5/8” (15.9) 0.04” (1.00) 1. Joints 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 0.79''(20mm).
  • Page 23 c) Insertion of Flare Nut d) Flare Processing Make certain that a clamp bar and copper pipe have been cleaned. By means of the clamp bar, perform the flare processing correctly. Use either a flare tool for R454B or conventional flare tool. ØD 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 12) 6-4. Recharging of Refrigerant When it is necessary to recharge refrigerant, charge the specified amount of refrigerant according to the following steps. Recover the refrigerant, and check no refrigerant remains in the equipment.

  • Page 26: Brazing Of Pipes

    1) Be sure to make setting so that liquid can be charged. 2) When using a cylinder equipped with a siphon, liquid can be charged without turning it upside down. It is necessary for charging refrigerant under condition of liquid because R454B is mixed type of refrigerant. Accordingly, when charging refrigerant from the refrigerant cylinder to the equipment, charge it turning the cylinder upside down if cylinder is not equipped with siphon.
  • Page 27 2. Characteristics required for flux 6-5-3. Brazing • Activated temperature of flux coincides with As brazing work requires sophisticated techniques, the brazing temperature. experiences based upon a theoretical knowledge, it • Due to a wide effective temperature range, flux must be performed by a person qualified. is hard to carbonize.

  • Page 28: Replenishing Refrigerant

    6-6. Replenishing refrigerant 6-6-1. Pump down process In order to assure the reliability of the appliance, 1. Turn off the Air Conditioner system. the amount of refrigerant to be replenished shall 2. Connect the charge hose from the manifold valve to be subject to the following restrictions.

  • Page 29: Outdoor Control Circuit

    7. OUTDOOR CONTROL CIRCUIT 7-1. Outline of Main Controls 1. Pulse Modulating Valve (PMV) control 1) For PMV with 40 to 500 pulses during operation, respectively. 2) In cooling operation, PMV is controlled with the temperature difference between TS sensor and TC sensor.

  • Page 30: Current Release Control

    3. Current release control The output frequency and the output voltage are controlled by AC current value detected by current transformer on the outdoor P.C. board so that input current of the inverter does not exceed the specified value. Current [A] Frequency down Hold Hold...

  • Page 31: Coil Heating Control

    4-2. Heating fan control 1) An outdoor fan is controlled by TE sensor, TO sensor and compressor frequency. (It is controlled with W1 for minimum and the maximum is controlled according to the following table.) 2) At the start time, the fan is fixed for 3 minutes only with the maximum fan tap corresponded to the zone in the following table but it is controlled with TE sensor temperature after then.

  • Page 32: Short Intermittent Operation Preventive Control

    TE˚F(˚C) (In defective TO sensor) 36˚F(2˚C) No power 34˚F(1˚C) Intermittent power-ON • Power-ON 10 minutes: ON / condition TD 32˚F(0˚C) < 86˚F(30˚C) 5 minutes: OFF 30˚F(-1˚C) Continuous power-ON Output power REQUIREMENT While heating the coil, the power sound may be heard. However it is not a trouble. 6.

  • Page 33: Defrost Control

    10. Defrost control 1 In heating operation, defrost operation is performed when TE sensor temperature satisfies any condition in A zone to D zone. 2 The defrost operation is immediately finished if TE sensor temperature has become 12°C continuing for 3 seconds or more, or it also is finished when condition of 7°C <...

  • Page 34: Outdoor Print Circuit Board

    7-2. Outdoor Print Circuit Board <MCC-1758> Lead and connector for Reactor CN200-CN202 : Compressor CN400 : Fan Motor (UPPER) CN300 : Fan Motor (LOWER) CN603 : TD sensor connector CN604 : TL sensor connector CN602 : TO sensor connector CN601 : TE sensor connector CN600 : TS sensor connector CN807 : Connector for display CN700 : 4-Way valve coil...

  • Page 35: 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 36 <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 37: 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 38: Others (Other Than Check Code)

    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 39: Monitor Function Of Remote Controller Switch

    8-2-3. Monitor Function of Remote Controller Switch Calling of sensor temperature display The sensor temperature or operational status of indoor unit, outdoor unit, or remote controller can be monitored. Indoor unit data Code Data name Room temperature (remote controller) Monitor function Indoor unit intake air temperature (TA) Code Data...
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  • Page 41 - 41 -...
  • Page 42 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 43 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 44 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 45 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 46 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. TROUBLESHOOTING You can perform fault diagnosis of the outdoor unit with the LEDs on the Sub P.C.Board of the outdoor unit in addition to using the check codes displayed on the wired remote controller of the indoor unit.
  • Page 47 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 P.C. board to narrow the contents to be confirmed. 3) The check code on the remote controller is displayed only when the same trouble occurred continuously by multiple times while LED of the outdoor P.C.
  • Page 48 Check Outdoor Check and troubleshooting code LED display (Item without special mention Indicates part of outdoor unit.) [F04] [Discharge temp. sensor (TD) trouble] Is connection of CN603 correct? Correct connector. Is resistance value of TD sensor correct? Replace TD sensor Check outdoor P.C.
  • Page 49 Check Outdoor Check and troubleshooting code LED display (Item without special mention Indicates part of outdoor unit.) [F15] [Miswiring of heat exchanger sensor (TE, TS)] Is mounting status of Correct sensor mounting. TE and TS sensors correct? Is connection of CN600 correct? Correct connector.
  • Page 50 Check Outdoor Check and troubleshooting code LED display (Item without special mention Indicates part of outdoor unit.) [H02] [Compressor lock] Is power supply voltage normal? Correct power supply line. AC198 to 242V Is wire connection correct? Compressor lead Check wire connection (P.C.
  • Page 51 Check Outdoor Check and troubleshooting code LED display (Item without special mention Indicates part of outdoor unit.) [L10] [Heat sink temp. sensor (TH) trouble] Cut jumper line according to the explanation sheet packaged with the service P.C. board. [L29] [Communication trouble MCUs] Check outdoor P.C.board Failure →...
  • Page 52 Check Outdoor Check and troubleshooting code LED display (Item without special mention Indicates part of outdoor unit.) [P07] [Heat sink overheat trouble] Is there any looseness in the screw stop of the motor drive element Apply radiation grease IC201 of the outdoor P.C. board, to objective, retightening the sub heat sink, and the diode bridge? of screw...
  • Page 53 Check Outdoor Check and troubleshooting code LED display (Item without special mention Indicates part of outdoor unit.) [P19] [4-way valve inverse trouble] Does 4-way valve Is the coil work correctly? resistance Replace (Check pipe temp. etc. value of 4-way 4-way valve coil in cooling/heating valve normal? operation.)
  • Page 54 Check Outdoor Check and troubleshooting code LED display (Item without special mention Indicates part of outdoor unit.) [P20] [High pressure protective operation] [P04] Is service valve Open service valve fully. fully opened? Reset the power supply and then perform test run Cooling season matching to the season.
  • Page 55 Check Outdoor Check and troubleshooting code LED display (Item without special mention Indicates part of outdoor unit.) [P22] [Fan system trouble] Is power supply voltage normal? Check wiring construction. AC198 to 242V Ask repair of power supply. Rotate shaft of the fan motor by hands during power-OFF.
  • Page 56 Check Outdoor Check and troubleshooting code LED display (Item without special mention Indicates part of outdoor unit.) [P26] [Short-circuit of compressor drive element] Are connections of compressor lead and reactor correct? Correct wiring. (Check referring to the Wiring diagram.) Does the same trouble occur in Replace outdoor operation without compressor lead? P.C.

  • Page 57: Temperature Sensor

    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 °F (°C)
  • Page 58 8-3. Table Inspection of outdoor unit main parts Parts name Checking procedure Compressor (BP301, 361) Measure the resistance value of each winding by using the tester. (Model : MTH356SKPC8FQL) Position Resistance value Red – White White – Black 0.405 ± 7%Ω White Black Black –...

  • Page 59: Setup At Local Site And Others

    9. SETUP AT LOCAL SITE AND OTHERS 9-1. Calling of Error History Displays the last 10 check codes, and at which unit and when they occurred. In the “Field setting menu” screen, press ] and [ ] to select “Alarm history”, and then press [ Set/Fix] NOTE...

  • Page 60: Group Control Operation

    9-2. Group Control Operation In a group control, operation of maximum 16 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 61 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 62: Outdoor Unit

    9-3. Outdoor Unit Various status displays and operations can be accessed using the push buttons (service switches) on the outdoor Control P.C. board and LED display. Service switch (SW01 and SW02) operation SW02 SW01 LED(D800 to D805) Concerning the LED display •...
  • Page 63 1. Various settings available via the outdoor unit (Existing pipe, Maximum frequency change, Snow guard fan control, Cooling only setup, etc.) (1) Service switch setting Various settings can be made using the service switches [Method of operation] 1) Ensure the LED display shows the initial status. If not then ensure to restore the initial status. 2) Press SW01 for at least 5 seconds.

  • Page 64: Returning To The Factory Default Settings

    Various settings confirmation method Whether the various settings are in effect or not can be confirmed. 1) Ensure the LED display shows the initial status. If not then ensure to restore the initial status. 2) Push SW01 for at least 5 seconds. D804 will start slowly flashing. 3) Push SW01 several times until reaching the desired function on the LED display.
  • Page 65 2. Service support functions (LED display and switch operation) (1) 1) LED display switching (SW01 and SW02 operation) (1)-1. Display switch list Service switches SW01 and SW02 can be used to change the display content of LEDs D800 to D805 on the outdoor unit.

  • Page 66: Trouble Display

    (1)-2. Trouble display Current and the latest trouble (latest and including the present trouble) can be checked using the lighting status of the LEDs D800 to D805 on the outdoor unit. (1)-2-1. Current trouble indication LED indication Wired remote Name of trouble control trouble code D800 D801 D802 D803 D804 D805 Normal...
  • Page 67 (1)-3. Sensor, current, compressor operation frequency, PMV opening indication Interface (CDB) P.C. board detected values (for example temperature and current sensor values) can be easily checked. ∗ Temperature sensors ... TD, TE, TL, TS, TO, TH, TA, TC, TCJ ∗ Current ......Current sensor (CT) value detected LED indication Temperature Compressor...
  • Page 68 (1)-4. Refrigerant leak detection function Monitors the amount of refrigerant being circulated based on the temperature sensors, compressor rotation speed, PMV opening during operation, and detects any refrigerant leaks during operation and indicates it using the LEDs on the outdoor unit. CAUTION ∗...
  • Page 69 (2) Maintenance inspections Special operations (SW01 and SW02 operations) The following special maintenance and inspection operations can be carried out using the service switches SW01 and SW02. [Method of operation] 1) Ensure the LED display shows the initial state. If not then please ensure to return it to the initial state. 2) Push and hold down SW01 for at least 5 seconds.

  • Page 70: Applicable Control Of Outdoor Unit

    3. Applicable Control of Outdoor unit The following controls are enabled by connecting the part “Application control kit” (TCB-PCOS1UL) 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 71: Replacement Of The Service P.c. Board(Mcc-1646)

    10. 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 72: How To Replace Compressor

    11. HOW TO REPLACE COMPRESSOR 11-1. Replacement 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 73: Detachments

    12. DETACHMENTS Part name Procedure Remarks Common CAUTION Top plate procedure Be sure to put on the gloves at working time; Top cover otherwise an injury may be caused by a part, Front panel etc. 1. Detachment 1) Stop operation of the air conditioner and then turn off switch of the breaker.
  • Page 74 Part name Procedure Remarks 1. Detachment Plate-stay (Fin guard) 1. Following to work of Detachment 1 2. Remove screws for the Plate-stay(Fin-Guard) ( Ø4 x 10, 7 pcs.), (Ø4 x 14, 2 pcs.) 2. Attachment Plate-stay Attachment the Plate-stay (Fin guard) in the (Fin guard) reverse process of "1.Detachment".
  • Page 75 Part name Procedure Remarks 1. Detachment Side cabinet (right), Wiring 1) Following to work of Detachment of 1 . division and 2) Remove the screws from the side panel (right) Wiring guide and the inverter box. (Ø4 × 10, 2 pcs.) Side cabinet (Right) 3) Remove the screws from the side panel (right) and the valve fixing plate, (Ø4 ×...
  • Page 76 Part name Procedure Remarks 1. Detachment Fan motor Loosened by turning clockwise Propeller fan 1) Following to work of Detachment of 1 , 2 and 3 2) Make sure that the fan motor and the propeller fan stop. 3) Remove flange nut from the fan motor and propeller fan.
  • Page 77 Part name Procedure Remarks 2. Attachment Partition plate Fan motor Fixing rubber (Continued) Attachment the fan motor in the reverse process of "1. Detachment". Precaution when assembling the fan motor. • Tighten the flange nut to 4.95 N.m (50 kgf.cm) •...
  • Page 78 Part name Procedure Remarks Compressor WARNING TD sensor When removing the welding part of the suction / Compressor discharge pipe of the compressor, remove lead Sound them after recovering the refrigerant in a well- insulation (Upper) ventilated place. If recovery is insufficient the refrigerant and refrigerating machine oil may Sound squirt, cause injury.
  • Page 79 Part name Procedure Remarks Compressor WARNING Compressor Ensure extreme caution when removing Cord clamp lead piping by melting the weld with a burner (Continued) as fire may result if there is any oil within the piping. CAUTION Partition plate Compressor lead Carefully avoid contact with the 4-way valve and PMV with the flame (could result in a malfunction)
  • Page 80 Part name Procedure Remarks P.C.board Detachment 1) Carry out work of 1 of Inverter ════════════════════════ box cover ⚠WARNING Never disassemble the inverter for 1 minute after power has been turned off because an Screw electric shock may be caused. ════════════════════════ 2) Take off screws to open inverter box cover, remove connector from P.C.board and then remove inverter box cover.
  • Page 81 Part name Procedure Remarks P.C.board 7) At the back of inverter box, disconnect (Continued) reactor connector from reactor. Pull reactor wires pass through hole of inverter box. 8) Take off screws that fix P.C.board and remove P.C.board out of inverter box. (Beware: Do not damage edge spacers).
  • Page 82 Part name Procedure Remarks 1. Detachment Fan guard Discharge 1) Perform works of Detachment 1 of port cabinet REQUIREMENT To prevent scratch on the product, carry out the work on cardboard cloth, etc. Fan guard 2) Remove the discharge port cabinet and then put on it so that the fan guard side directs downward.

  • Page 83: Exploded Views And Parts List

    13. EXPLODED VIEWS AND PARTS LIST <Outdoor Unit> RAV-BP301AT2P-UL, RAV-BP361AT2P-UL - 83 -...
  • Page 84 Model name Location Part No. Description RAV-BP301AT2P-UL RAV-BP361AT2P-UL 43T42401 BASE PLATE ASSEMBLY 43T41617 COMPRESSOR (MTH356SKPC8FQL) 43T60522 TEMPERATURE SENSOR 43T97326 COMPRESSOR NUT 43T43626 DOWN CONDENSER ASSEMBLY 43T43627 UPPER CONDENSER ASSEMBLY 43T00781 VALVE FIXING PLATE COATING 43T46380 VALVE;PACKED 9.52 DIA 43T46576 VALVE; PACKED 15.88 DIA 43T63373 SWITCH PRESSURE 43T47404...
  • Page 85 RAV-BP421AT2P-UL, RAV-BP481AT2P-UL - 85 -...
  • Page 86 Model name Location Part No. Description RAV-BP421AT2P-UL RAV-BP481AT2P-UL 43T42401 BASE PLATE ASSEMBLY 43T41618 COMPRESSOR (MTH420SKPC8FQ) 43T60522 TEMPERATURE SENSOR 43T97326 COMPRESSOR NUT 43T43623 DOWN CONDENSER ASSEMBLY 43T43624 UPPER CONDENSER ASSEMBLY 43T00781 VALVE FIXING PLATE COATING 43T46380 VALVE;PACKED 9.52 DIA 43T46576 VALVE; PACKED 15.88 DIA 43T63373 SWITCH PRESSURE 43T47404...
  • Page 87 <Inverter assembly> L ED disp lays S ervice S witches D8 00 D8 02 D 80 4 S W0 1 SW 02 D 80 1 D 803 D8 05 11 15 28 41 01 Q2 01 CN 20 0 CN 20 1 CN 20 2 C2 4 1 D B 01...

  • Page 88: Warnings On Refrigerant Leakage

    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 R454B 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 89 Air conditioner installation work check items Model name After finishing installation work, check items below and hand this sheet to user to keep it in a safe place together Check date with Owner and installation manuals Checked by Note : Please put a mark " "...
  • Page 90 CARRIER AIR CONDITIONING (THAILAND) CO., LTD. 144/9 MOO 5, BANGKADI INDUSTRIAL PARK, TIVANON ROAD, TAMBOL BANGKADI, AMPHUR MUANGPATHUMTHANI, PATHUMTHANI 12000, THAILAND...

This manual is also suitable for:

Puron advance rav-bp361at2p-ulPuron advance rav-bp421at2p-ulPuron advance rav-bp481at2p-ul

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