Toshiba RAV-HB121UTP-UL Service Manual
  1. Manuals
  2. Brands
  3. Toshiba Manuals
  4. Air Conditioner
  5. RAV-HB121UTP-UL
  6. Service manual
Toshiba RAV-HB121UTP-UL Service Manual

Toshiba RAV-HB121UTP-UL Service Manual

Indoor unit 4-way cassette type
Hide thumbs Also See for RAV-HB121UTP-UL:
Table of Contents

Advertisement

Quick Links

Download this manual
SERVICE MANUAL
AIR-CONDITIONER
INDOOR UNIT
<4-way cassette type>
RAV-HB121UTP-UL
RAV-HB181UTP-UL
RAV-HB241UTP-UL
RAV-HB301UTP-UL
RAV-HB361UTP-UL
RAV-HB421UTP-UL
RAV-HB481UTP-UL
R454B
(SPLIT TYPE)
FILE NO. SVM-24051
November, 2024

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the RAV-HB121UTP-UL and is the answer not in the manual?

Questions and answers

Related Manuals for Toshiba RAV-HB121UTP-UL

Summary of Contents for Toshiba RAV-HB121UTP-UL

  • Page 1 FILE NO. SVM-24051 SERVICE MANUAL AIR-CONDITIONER (SPLIT TYPE) INDOOR UNIT <4-way cassette type> RAV-HB121UTP-UL RAV-HB181UTP-UL RAV-HB241UTP-UL RAV-HB301UTP-UL RAV-HB361UTP-UL RAV-HB421UTP-UL RAV-HB481UTP-UL R454B November, 2024...

  • Page 2: Table Of Contents

    Original instruction Adoption of R454B Refrigerant This Air Conditioner an environmentally friendly refrigerant. CONTENTS SAFETY CAUTION ....................1. SPECIFICATIONS ..................2. DIMENSIONAL DRAWING ................3. SYSTEMATIC REFRIGERATING CYCLE DIAGRAM ........4. WIRING DIAGRAM ..................5. SPECIFICATIONS OF ELECTRICAL PARTS ..........6.

  • Page 3: Generic Denomination: Air Conditioner

    Thank you for purchasing this air conditioner. Please read carefully through these instructions that contain important information and ensure that you understand them. After completing the installation work, hand over this Installation Manual as well as the Owner’s Manual provided with the outdoor unit to the user, and ask the user to keep them in a safe place for future reference. 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...
  • 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 This mark is for R454B refrigerant only. Refrigerant type is written on nameplate of outdoor unit. WARNING In case that refrigerant type is R454B, this unit uses a flammable refrigerant. (Risk of fire) If refrigerant leaks and comes in contact with fire or heating part, it will create harmful gas and there is risk of fire.

  • Page 6: Precautions For Safety

    PRECAUTIONS 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 for both the indoor and outdoor units to the OFF position. Otherwise, electric shocks may result.
  • Page 7 WARNING Before starting to repair the air conditioner, read carefully through the Service Manual, and repair the air conditioner by following its instructions. Only qualified service person is allowed to repair the air conditioner. Repair of the air conditioner by unqualified person may give rise to a fire, electric shocks, injury, water leaks and / or other problems.
  • Page 8 Do not modify the products. Do not also disassemble or modify the parts. It may cause a fire, electric shock or injury. Prohibition of modification. When any of the electrical parts are to be replaced, ensure that the replacement parts satisfy the specifications given in the Service Manual (or use the parts contained on the parts list in the Service Manual).
  • Page 9 After repair work, surely assemble the disassembled parts, and connect and lead the removed wires as before. Perform the work so that the cabinet or panel does not catch the inner wires. If incorrect assembly or incorrect wire connection was done, a disaster such as a leak or fire is caused Assembly / at user’s side.
  • Page 10 When the service panel of the outdoor unit is to be opened in order for the compressor or the area around this part to be repaired immediately after the air conditioner has been shut down, set the circuit breaker to the OFF position, and then wait at least 10 minutes before opening the service panel. If you fail to heed this warning, you will run the risk of burning yourself because the compressor pipes and other parts will be very hot to the touch.

  • 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). 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)) 2) Tools exclusive for R454B, but can be also used for conventional refrigerant (R22) 3) Tools commonly used for R454B and for conventional refrigerant (R22) The table below shows the tools exclusive for R454B and their interchangeability.

  • Page 13: Specifications

    1. SPECIFICATIONS 4Way Cassette type Size HB121UTP-UL HB181UTP-UL HB241UTP-UL HB301UTP-UL HB361UTP-UL HB421UTP-UL HB481UTP-UL Indoor Model RAV- BP121AT2P-UL BP181AT2P-UL BP241AT2P-UL BP301AT2P-UL BP361AT2P- UL BP421AT2P-UL BP481AT2P-UL Outdoor Model RAV- Cooling Rated Capacity (Btu/h) 12000 18000 24000 30000 36000 42000 48000 26.0 25.50 24.2 24.5 24.8...

  • Page 14: Dimensional Drawing

    2. DIMENSIONAL DRAWING RAV-HB121UTP-UL, RAV-HB181UTP-UL, RAV-HB241UTP-UL Unit : in (mm) 33.9"(860) to 35.8"(910) Ceiling open dimension 11.8"(300) or less Bottom face of ceiling Indoor unit Drain upstanding size 39.4"(1000) or more A (Liquid side) Take-in port of wiring An obstacle 1.2"...
  • Page 15 RAV-HB301UTP-UL, RAV-HB361UTP-UL, RAV-HB421UTP-UL, RAV-HB481UTP-UL Unit : in (mm) 33.9"(860) to 35.8"(910) Ceiling open dimension 11.8"(300) or less Bottom face of ceiling Indoor unit Drain upstanding size 39.4"(1000) or more An obstacle 1.2" Take-in port of wiring Bottom face of ceiling (30) 39.4"(1000) or more...

  • Page 16: Systematic Refrigerating Cycle Diagram

    3. SYSTEMATIC REFRIGERATING CYCLE DIAGRAM Indoor Unit • Single type (Combination of 1 indoor unit and 1 outdoor unit) (Indoor unit) Distributor (Strainer incorporated) TCJ sensor Strainer Heat exchanger TC sensor Heating Cooling Liquid side Gas side (Outer dia : ØB) (Outer dia : ØA) To outdoor unit To outdoor unit...

  • Page 17: Wiring Diagram

    4. WIRING DIAGRAM - 17 -...

  • Page 18: Specifications Of Electrical Parts

    5. SPECIFICATIONS OF ELECTRICAL PARTS Indoor Unit RAV-HB121UTP-UL, RAV-HB181UTP-UL, RAV-HB241UTP-UL Parts name Type Specifications Fan motor LDF-340-60AA1 Output (Rated) 60 W 10 kΩ at 77°F(25°C) Thermo. sensor (TA-sensor) 12.9" (328 mm) Ø0.24"(6mm), 39.4" (1000mm) 10 kΩ at 77°F(25°C) Heat exchanger sensor (TCJ-sensor) Heat exchanger sensor (TC-sensor) Ø0.24"(6mm), 39.4"...

  • Page 19: Indoor Control Circuit

    6. INDOOR CONTROL CIRCUIT 6-1. Indoor Controller Block Diagram Connection of Wired (Simple) Remote Controller Wired simple Schedule Display LCD Function setup Display LCD LCD driver Display LED Key switch Function setup Key switch DC5V DC5V Remote controller Power circuit communication circuit ∗2 Power...

  • Page 20: Connection Of Wireless Remote Controller Kit

    Connection of Wireless Remote Controller Kit Indoor unit #1 (Header) Wireless remote controller kit Receiver P .C. board Display LED Buzzer DC5V Power Remote controller circuit communication circuit (Follower) (Follower) Indoor control P .C. board (MCC-1643) DC20V Remote controller EEPROM communication circuit DC5V TA sensor...

  • Page 21: Connection Of Both Wired (Simple) Remote Controller And Wireless Remote Controller Kit

    Connection of Both Wired (Simple) Remote Controller and Wireless Remote Controller Kit Indoor unit #1 (Header) Wired (simple) master remote controller Wireless remote controller kit Schedule timer (Max. 2 units) Display LED Receiver P.C. board Display Function Display setup driver Receive Function setup SW Display...

  • Page 22: Control Specifications

    6-2. Control Specifications Item Outline of specifications Remarks When power 1) Distinction of outdoor unit supply is reset When the power supply is reset, the outdoors are distin- guished and the control is selected according to the distinguished result. 2) Setting of indoor fan speed and existence of air direction adjustment Based on EEPROM data, select setting of the indoor fan Air speed (rpm)/...
  • Page 23 Item Outline of specifications Remarks Room temp. 2) Using the CODE No. 06, the setup temperature in heating Shift of suction control operation can be corrected. temperature in heating (Continued) operation SET DATA Temperature setting adjustment +0 ˚F +3.6 ˚F +7.2 ˚F +10.8 ˚F [+0˚C]...
  • Page 24 Item Outline of specifications Remarks Air speed selection 1) Operation with (HH), (H), (L) or [AUTO] mode is carried HH > H+ > H > L+ > out by the command from the remote controller. L > UL 2) When the air speed mode [AUTO] is selected, the air speed varies by the difference between Ta and Ts.
  • Page 25 Item Outline of specifications Remarks Air speed Standard Type 1 Type 3 Type 6 CODE No. selection Selection of high [5d] (Continued): ceiling type SW501 (1)/(2) OFF/OFF ON/OFF OFF/ON ON/ON CODE No.: COOL HEAT COOL HEAT COOL HEAT COOL HEAT [5d] or selection of high ceiling on P .C.
  • Page 26 Item Outline of specifications Remarks Cool air discharge 1) In heating operation, the indoor fan is controlled In D and E zones, the preventive control based on the detected temperature of Tc sensor or priority is given to air Tcj sensor. As shown below, the upper limit of the volume selection setup revolution frequency is restricted.
  • Page 27 Item Outline of specifications Remarks High-temp. 1) The heating operation is performed as follows based on the release control detected temperature of Tc sensor or Tcj sensor. • When [M] zone is detected, the commanded frequency is However this control is decreased from the real operation frequency.
  • Page 28 Item Outline of specifications Remarks Louver control 1) Louver position setup The louver position at horizontal • When the louver position is changed, the position moves discharge position necessarily to downward discharge position once to return to at under SM24 the set position.
  • Page 29 Item Outline of specifications Remarks Louver control <<Selection of Swing mode>> (Continued) • For the Swing mode, the following three types of modes are SWING/FIX selectable and settable by keeping Swing/Direction button pushed for 4 seconds or more on the remote controller. Standard (4 pieces: same phase) swing →...
  • Page 30 Item Outline of specifications Remarks Louver control • If there is the locked louver in the unit, [ ] goes on the For the setting (Continued) remote controller screen. operation, refer to [How to set louver • While the following controls are performed, the louvers lock] of Installation operate even if executing the louver lock.
  • Page 31 Item Outline of specifications Remarks Central control mode 1) Setting at the centerl controller side enables to select the selection contents which can be operated on the remote controller at indoor unit side. 2) Setup contents • 64 line central controller (TCB-SC642TLE2) Display at remote controller side [Individual]: Operated on the remote controller...
  • Page 32 Item Outline of specifications Remarks DC motor 1) When the fan operation has started, positioning of the stator and the rotor are performed. (Moves slightly with tap sound) 2) The motor operates according to the command from the indoor controller. Notes) •...
  • Page 33 Item Outline of specifications Remarks 46.4°F(8°C) 1) This functional is intended for the cold latitudes and performs heating/Frost objective heating operation (46.4°F(8°C) heating operation). protective 2) This function is valid only for combination with the outdoor In a group connection, operation units (Super Digital Inverter (SDI) 4-series outdoor units).

  • Page 34: Indoor Print Circuit Board

    6-3. Indoor Print Circuit Board <MCC-1643> - 34 -...

  • Page 35: Optional Connector Specifications Of Indoor P.c. Board

    Optional Connector Specifications of Indoor P.C. Board - 35 -...

  • Page 36: Troubleshooting

    7. TROUBLESHOOTING 7-1. Summary of Troubleshooting <Wired remote controller type> 1. Before troubleshooting 1) Required tools/instruments – • screwdrivers, spanners, radio cutting pliers, nippers, push pins for reset switch • Tester, thermometer, pressure gauge, etc. 2) Confirmation points before check a) The following operations are normal.
  • Page 37 <Wireless remote controller type> 1. Before troubleshooting 1) Required tools/instruments – • screwdrivers, spanners, radio cutting pliers, nippers, etc. • Tester, thermometer, pressure gauge, etc. 2) Confirmation points before check a) The following operations are normal. 1. Compressor does not operate. •...

  • Page 38: Troubleshooting

    7-2. Troubleshooting 7-2-1. Outline of judgment The primary judgment to check whether a trouble occurred in the indoor unit or outdoor unit is carried out with the following method. Method to judge the erroneous position by flashing indication on the display part 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 39 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 ⎬ ⎪ Heat exchanger sensor (TA) error Alternate flash ⎭ Discharge temp. sensor (TD) error ⎫...

  • Page 40: Others (Other Than Check Code)

    7-2-2. Others (Other than Check Code) Lamp indication Check code Cause of trouble occurrence Operation Timer Ready — During test run Simultaneous flash Operation Timer Ready Disagreement of cool/heat — (Automatic cool/heat setting to automatic cool/heat prohibited model, or setting of heating to cooling-only model) Alternate flash - 40 -...
  • Page 41 - 41 -...
  • Page 42 Error mode detected by indoor unit Operation of diagnostic function Judgment and measures Check Status of Cause of operation Condition code air conditioner 1. Check cables of remote controller and communication adapters. No communication from remote Stop Displayed when controller (including wireless) and •...
  • Page 43 Error mode detected by remote controller or central controller (TCC-LINK) Operation of diagnostic function Judgment and measures Status of Check code Cause of operation 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 44: Diagnostic Procedure For Each Check Code (Indoor Unit)

    7-2-4. Diagnostic Procedure for Each Check Code (Indoor Unit) Check code [E01 error] Correct inter-unit cable Is inter-unit cable of A and B normal? of remote controller Is there no disconnection or Correct connection of connector. contact error of connector on harness Check circuit wiring.
  • Page 45 [E04 error] Is group address setup of Does outdoor operate? Check CODE No. [14]. remote controller correct? Are wiring in indoor unit and Correct wiring and 1, 2, 3 inter-unit cables correct? inter-unit cables. Correct wiring of connector Are wirings of terminal blocks and terminal blocks.
  • Page 46 [E18 error] Correct inter-unit cable Is inter-unit cable of remote controller. of A and B normal? Is there no disconnection Correct connection of connector. or contact error of connector Check circuit wiring. on harness from terminal block of indoor unit? Is group control operation? Check power Is power of all indoor units turned on?
  • Page 47 [L20 error] Are wiring connections to communication lines Correct wiring connection. U3 and U4 normal? Is not the multiple same central Correct central control system address. control system addresses connected? Check central controller (including network adapter) and indoor P.C. board (MCC-1643). Defect →...
  • Page 48 [P10 error] Is connection of float switch connector Correct connection (Indoor control board CN34) of connector. normal? Does float switch work? Is circuit wiring normal? Check and correct wiring and wire circuit. Does drain pump work? Are connector pins 1 and 2 Is power of at drain pump unit side shorted drain pump turned on? ∗...
  • Page 49 [P12 error] Power off. Is not connection error or Repair the connector disconnection on the connector connection. CN210 of indoor unit P.C. board? Disconnect the connector CN210 to the indoor P.C. board Does the Replace the indoor fan turn smoothly when fan motor.
  • Page 50 [P19 error] Is operation of 4-way valve normal? Are 1.3 to 1.6kΩ applied to (Check the pipe temp., etc. Replace 4-way valve coil. resistance value of 4-way valve coil ? during cooling/heating operation. Defective Check outdoor P.C. board. Check outdoor P.C. board operation. Defective →...
  • Page 51 [F02 error] Is connection of TC sensor connector Correct connection of connector. (CN101 on Indoor P.C. board) correct? Are characteristics of Replace TC sensor. TC sensor resistance value normal? ∗ Refer to Characteristics-2. Check indoor P.C. board (MCC-1643). Defect → Replace [F01 error] Is connection of TCJ sensor connector Correct connection of connector.
  • Page 52 [C06 error] (“1:1 model” connection interface) n i l n i l ∗1 Correct connection of connector. Is connection of connector normal? ∗1 TCC-LINK central: CN51 of “1:1 model” connection interface (TCC-LINK adapter) P.C. board (MCC-1440) and CN050 of indoor P.C. board Check connection of A and B terminal blocks.
  • Page 53 [E03 error] (Header indoor unit) [E03 error] is detected when the indoor unit cannot receive a signal from the remote controller (also central controller). Check A and B remote controllers and communication lines of the central control system U3 and U4. As communication is impossible, this check code [E03] is not displayed on the remote controller and the central controller.

  • Page 54: Temperature Sensor

    Temperature sensor Temperature – Resistance value characteristic table TA, TC, TCJ sensors Representative value Resistance value (kΩ Ω Ω Ω Ω ) Temperature °F [°C] (Minimum value) (Standard value) (Maximum value) 32 [0] 32.33 33.80 35.30 50[10] 19.63 20.35 21.09 68[20] 12.23 12.59...

  • Page 55: Replacement Of Service P.c.board

    8. REPLACEMENT OF SERVICE P.C. BOARD CAUTION ∗∗∗ ∗ <Model name: RAV-HB > For the above models, set the CODE No. “E0” and the setting data “0000” (initial) to “0001”. <Note: when replacing the P.C. board for indoor unit servicing> The nonvolatile memory (hereafter called EEPROM, IC503) on the indoor unit P.C.
  • Page 56 [1] Setting data read out from EEPROM (Stop the operation of the unit.) Step 1 Push [ Menu] to open the “Menu”. Step 2 Push and hold [ Menu] and [ ] at the same time to open “Field setting menu”. •...
  • Page 57 [2] P.C. Board for indoor unit servicing replacement procedures Step 1 Replace the P.C. board to the P.C. board for indoor unit servicing. At this time, perform the same setting of the jumper wire (J01, J08, J09) setting (cut), switch SW501, (short-circuit) connector CN34 as the setting of the P.C.
  • Page 58 [3] Writing the setting data to EEPROM The settings stored in the EEPROM of the P.C. board for indoor unit servicing are the factory-set values. Step 1 Push [ Menu] to open the “Menu”. Step 2 Push and hold [ Menu] and [ ] at the same time to open “Field setting menu”.
  • Page 59 <Fig. 2 EEPROM layout diagram> The EEPROM (IC503) is attached to the IC socket. When detaching the EEPROM, use a tweezers, etc. Be sure to attach the EEPROM by fitting its direction as shown in the figure. ∗ Do not bend the IC lead when replacing. Cut out EEPROM EEPROM...
  • Page 60 Table 1. Setting data (Code No. table (example)) Item Setting data Factory-set value Filter sign lighting time Depending on Type Filter pollution level 0000:standard Central control address 0099:Not determined 0002:+35.6°F[3.6°C] Heating suction temperature shift (Flooring installation type: 0) Cooling Only 0000:Heat pump Type Depending on model type...

  • Page 61: Setup At Local Site And Others

    9. SETUP AT LOCAL SITE AND OTHERS 9-1. Indoor Unit 9-1-1. Test Run Setup on Remote Controller <Wired remote controller> Push [ Menu] to open the “Menu” Push and hold [ Menu] and [ ] at the same time to open “Field setting menu” →...
  • Page 62 <Wireless remote controller> In case of wireless remote controller Turn on the power of the air conditioner. When power is turned on for the first time after installation, it takes approx. 5 minutes until the remote controller becomes available. In the case of subsequent power-on, it takes approx. 1 minute until the remote controller becomes available.

  • Page 63: Forced Defrost Setup Of Remote Controller (For Wired Remote Controller Only)

    9-1-2. Forced Defrost Setup of Remote Controller (For wired remote controller only) (Preparation in advance) Forced Defrost Setup Push the [ MENU] button to display the menu screen. Push and hold the [ MENU] button and the [ ] button at the same time to display the “Field setting menu”.
  • Page 64 Function selection CODE No. (DN) list Item Contents At shipment from factory Filter sign lighting time 0002: 2500H 0003: 5000H According to type 0004: 10000H 0005: Clogging sensor used 0000: Standard Filter stain level 0000: Standard 0001: Heavy stain (Half of standard time) 0001: No.1 unit 0064: No.64 unit Central control address...
  • Page 65 At shipment from factory Item Contents Set when compressor-ON time is 10 to 60 minutes. Self-clean operation time 0002: 1 hour When ON-time is 60 minutes or more, the double of this operation time setting is set. Selection of louver horizontal discharge 0000: Smudging-less setting 0000: Smudging- position...

  • Page 66: Wiring And Setting Of Remote Controller Control

    9-1-4. Wiring and Setting of Remote Controller Control 2-remote controller control (Controlled by 2 remote controllers) This control is to operate 1 or multiple indoor units are operated by 2 remote controllers. (Max. 2 remote controllers are connectable.) • When connected 2 remote controllers operate an indoor unit Remote controller Remote controller...
  • Page 67 Set the remote controller as ”Header remote controller (Master)” or “Follower remote controller (Sub)” when the dual remote controller system is used. Carry out the setting operation while the indoor unit is stopped. (Turn off the air conditioning unit before starting the setting operation.) In the “Initial setting”...

  • Page 68: Monitor Function Of Remote Controller Switch

    9-1-5. 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 Outdoor unit data Code Data name Code Data name Room temperature (remote controller) Outdoor unit heat exchanger (coil) temperature (TE)
  • Page 69 (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) controls room temperature according to setting on the remote controller. <System example> Header 16-1 Max.
  • Page 70 Indoor unit power-ON sequence • The unit without power feed waits entirely → Waiting status is released by system start Power ON • Reboot when power is fed on the way <By indoor unit which receives power feed from outdoor unit> <Automatic address judgment>...

  • Page 71: How To Set Up Central Control Address Number

    9-2. How to Set up Central Control Address Number When connecting the indoor unit to the central control remote controller using it is necessary to set up the central control address number. • The central control address number is displayed as the line No. of the central control remote controller. How to set up from indoor unit side by remote controller <Procedure>...

  • Page 72: How To Set Up Type Of Swing

    9-3. How to set up type of swing • If the connected indoor units have louvres, then the horizontal louvre icon is displayed on the air conditioner main screen. • If the connected indoor units have vertical louvres, then the vertical louvre icon is displayed on the air conditioner main screen.
  • Page 73 Cancelling swing During swing operation, press [ ] and ] to switch to the “Wind direction” screen Press [ ] or [  The louvres stop at the position when [ ] or [ is pressed.  When [ ] is pressed in the display when swing * Display when swinging (up / down) is cancelled “Fan”, “Heat”...
  • Page 74  Individual louver * For 4-way cassette types, the wind direction and swing operation of each louver can be set individually. In “Menu” (Page 17), select “Individual louver”, and press [ Set/Fix] Press [ ] and [ ] to select louvres All louvres Louvre 4 Louvre 1...

  • Page 75: Louver Setting

     Louver setting Swing type You can select from 3 types of swing operation: “Standard”, “Dual”, or “Cycle”. In “Menu” (Page 17), select “Louver setting”, and press [ Set/Fix] Press [ ] and [ ] to select “Swing type”, and then press [ Set/Fix] In the “Swing type”...
  • Page 76 Louver lock (Fixing the angle of the louvres) You can set and fix the angle of louvres individually for each air outlet. In “Menu” (Page 17), select “Louver setting”, and press [ Set/Fix] Press [ ] and [ ] to select “Louver lock”, and then press [ Set/Fix] Press [...

  • Page 77: Energy Saving

    Energy saving Set for the energy saving operation: Energy saving operation, Set temp. range limit, Return back and Saving operation. In “Menu” (Page 17), select “Energy saving”, and press [ Set/Fix] Press [ ] and [ ] to select an item Press [ Set/Fix] Item...

  • Page 78: Energy Saving Operation

    Energy saving operation You can set this to save energy. In the “Energy saving” screen, press [ and [ ] to select “Energy saving operation”, and then press [ Set/Fix] Press [ ] and [ ] to select “Energy saving operation”, and then press [ Set/ Fix] Press [...

  • Page 79: Address Setup

    10. ADDRESS SETUP 10-1. Address Setup <Address setup procedure> When an outdoor unit and an indoor unit are connected and they are twin-triple, 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 80: 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 = Header unit in group control 2 = Follower unit in group control Header unit (= 1) : The representative of multiple indoor units in group operation sends/receives signals to/ from the remote controllers and follower indoor units.

  • Page 81: Address Setup (Manual Setting From Remote Controller)

    10-3. Add Setup (Manual address setting using the remote controller) In case that addresses of the indoor units will be determined prior to piping work after wiring work • Set an indoor unit per a remote controller. • Turn on power supply. Menu(1/3) 6.Setting louver position 7.Setting timer operation mode...
  • Page 82 <Indoor unit address> To set the data of Indoor unit address, push [ Set/Fix]. Push [ ] to black highlight the code (DN), and then push [ ] and [ ] to set the code number to 13. Push [ ] to black highlight the data, and then push [ ] and [ ] to set a Indoor unit...

  • Page 83: Confirmation Of Indoor Unit No. Position

    10-4. Confirmation of Indoor Unit No. Position Procedure to know the position of indoor unit body by address while indoor unit No. is known. • Confirm each indoor unit address while indoor unit is stopped. (Be sure to stop air conditioner.) 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 84 <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 85: Detachments

    11. DETACHMENTS Indoor Unit Part name Procedure Remarks 1. Detachment Suction grille Suction grille 1) Stop operation of the air conditioner and Hook then turn off switch of the breaker. Ceiling panel Slide the 2 knobs of the suction grille While inward and then hang down the suction pushing...
  • Page 86 Part name Procedure Remarks Electric 1. Detachment Claw of parts cover electric parts box Bell mouth pin 1) Carry out work of item 1. of 1. 2) Remove the fixing screw A which fix the electric parts cover and loosen the fixing screw B Sliding direction 3) Pull down the electric parts cover,...
  • Page 87 Part name Procedure Remarks 1. Detachment Adjust corner 1) Pull the knob of the adjust corner cap to the arrow direction. Ceiling panel Adjust corner NO TE : The adjust corner cap will bekept being hung with a f alling-preventive st rap. 2.
  • Page 88 Part name Procedure Remarks 1. Detachment Ceiling panel Clamper 1) Carry out works of item 1 of and item 1 of 3 . 2) Remove the flap connector (CN510, White, 20P) connected to the control P .C. board and then remove the lead wire from the clamp.
  • Page 89 Part name Procedure Remarks 1. Detachment Control P.C. board 1) Carry out work of item 1 of 2. Clamp 2) Remove connectors which are connected from the control P.C. board to the other parts and then remove wiring from the clamp. CN510 : Louver motor (20P, White) CN214 : Signal receiving unit (9P, White)
  • Page 90 Part name Procedure Remarks Drain cap 1. Detachment Drain cap (outside) 1) Carry out work of item 1 of 1. 2) Loosen screws (3 positions) fixing th drain cap (outside) and then turn the drain cap to the arrow mark direction to remove it.
  • Page 91 Part name Procedure Remarks Fan motor 1. Detachment Fixing screw A 1) Carry out work of item 1 of 2. 2) Remove connectors which are connected from the control P.C. board to the other parts and then remove each wiring from the clamp. CN510 : Louver motor (20P, White) CN34 : Float switch (3P, Red) CN504 : Drain pump (2P, White)
  • Page 92 Part name Procedure Remarks Fan motor 2. Attachment M6 nut (Continued) 2) Fix the fan motor lead, TC sensor and TCJ sensor with the clamp of the bell mouth. 3) Mount the electric parts box with the fixing screws A and B ( ∅...

  • Page 93: Float Switch Assembly

    Part name Procedure Remarks Float switch 1. Detachment assembly 1) Carry out works of item 1 of 7 and works from 1) to 5). Float s Float switch assemb Float switch assembly witch assembly 2) Remove the fixing screw and the remove the float switch assembly (Ø4 ×...
  • Page 94 Part name Procedure Remarks Heat 1. Detachment exchanger 1) Recover the refrigerant gas. 2) Carry out work of item 1 of !. 3) Remove refrigerant pipe at indoor unit side. Remove the fixing screws and the remove the piping cover. (Ø4 × 10, 3 pcs.) Piping cover Fixing screws (∅4 x 10)

  • Page 95: Exploded Views And Parts List

    12. EXPLODED VIEWS AND PARTS LIST 12-1. Indoor Unit RAV-HB121UTP-UL, RAV-HB181UTP-UL, RAV-HB241UTP-UL 214 215 Accessory part - 95 -...
  • Page 96 Model name Location Part No. Description RAV-HB121UTP-UL RAV-HB181UTP-UL RAV-HB241UTP-UL 43T20335 FAN,ASSY TURB 43T97001 43T39353 CAP,NUT 43T77301 PUMP ASSY 43T51314 SWITCH ASSY FLOAT 43T44609 REFRIGERANT CYCLE ASSEMBLY 43T44610 REFRIGERANT CYCLE ASSEMBLY 43T72362 PAN ASSY, DRAIN 43T79317 LID ASSY, INSIDE 43T79319 LID ASSY, OUTSIDE...
  • Page 97 RAV-HB301UTP-UL, RAV-HB361UTP-UL, RAV-HB421UTP-UL, RAV-HB481UTP-UL 214 215 Accessory part - 97 -...
  • Page 98 Model name Location Part No. Description RAV-HB301UTP-UL RAV-HB361UTP-UL RAV-HB421UTP-UL RAV-HB481UTP-UL 43T20334 FAN,ASSY TURB 43T97001 43T39353 CAP,NUT 43T77301 PUMP ASSY 43T51314 SWITCH ASSY FLOAT 43T44611 REFRIGERANT CYCLE ASSEMBLY 43T72363 PAN ASSY, DRAIN 43T79317 LID ASSY, INSIDE 43T79319 LID ASSY, OUTSIDE 43T83312 STRING 43T22322 BELL MOUTH...

  • Page 99: Electric Parts

    12-2. Electric parts CN214 Model name Location RAV-HB Part No. Description 121UTP-UL 181UTP-UL 241UTP-UL 301UTP-UL 361UTP-UL 421UTP-UL 481UTP-UL 43T50388 TA-SENSOR (YEL) 43T50420 TC-SENSOR (BLK) 43T60402 TERMINAL:3P 43T60362 TERMINAL 43TNV572 PC BOARD ASSY (MCC-1643) 43TNV573 PC BOARD ASSY (MCC-1643) 43TNV574 PC BOARD ASSY (MCC-1643) 43TNV575 PC BOARD ASSY (MCC-1643) 43TNV576...
  • Page 100 RBC-U32PGP-UL 308, 309 306, 307, 323, 324 310, 311 Model name Location Part No. Description RBC-U32PGP-UL 43T09533 GRILLE AINL 43T80350 AIR FILTER 43T21434 STEPPING-MOTOR 43T07317 AIR OUTLET FOAM (A) 43T07318 AIR OUTLET FOAM (B) 43T09531 LOUVER 43T01317 PANEL-COVER-ASSEMBLY 43T01332 ASM-COVER-PANEL 43T07320 PANEL FIX PLATE (A) 43T07321...
  • Page 101 Model name Location Part No. Description RBC-U33P-UL 43T00885 PANEL, INSULATOR ASSY 43T01338 PANEL, COVER ASSY 43T01343 PANEL,COVER,ASSY; TOSHIBA CARRIER 43T07330 PLATE, FIX PANEL (A) 43T07331 PLATE, FIX PANEL (B) 43T07332 HANGER FIXTURE 43T09625 GRILLE AIR INLET ASSY 43T07333 GRILLE HOOK LEFT...

  • Page 102: 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 103 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:

Rav-hb181utp-ulRav-hb241utp-ulRav-hb301utp-ulRav-hb361utp-ulRav-hb421utp-ulRav-hb481utp-ul

Table of Contents