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SERVICE MANUAL
AIR-CONDITIONER (MULTI TYPE)
OUTDOOR UNIT
Model name:
MCY-MHP0506HT-C*
MCY-MHP0606HT-C*
MCY-MHP0506HT
MCY-MHP0606HT
MCY-MHP0406HT-E
MCY-MHP0506HT-E
This service manual provides relevant explanations about new outdoor unit.
Please refer to the following service manuals for each indoor units.
<4-way Cassette Type>
(MMU-AP****H)
<2-way Cassette Type>
(MMU-AP****WH*)
<Slim Duct Type>
(MMD-AP024, A0274SPH*)
<Concealed Duct High Static Pressure Type>
(MMD-AP***6HP*)
(Made in Thailand model)
<High-wall Type>
(MMK-AP***3H*)
(Made in Thailand model)
<Console Type>
(MML-AP****NH*)
(Made in Thailand model)
<Ceiling Type>
(MMC-AP***7HP*)
(Made in Thailand model)
<Other indoor units>
(MM*-AP*****H*)
Service Manual No.
A08-004
A10-007
A12-005
SVM-15032
SVM-09059
SVM-11036
SVM-13085
A10-033
FILE NO. A10-1607
Revision1: Jun, 2017
Revision2: Aug, 2017

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Summary of Contents for Toshiba MCY-MHP0506HT-C

  • Page 1 FILE NO. A10-1607 Revision1: Jun, 2017 Revision2: Aug, 2017 SERVICE MANUAL AIR-CONDITIONER (MULTI TYPE) OUTDOOR UNIT Model name: MCY-MHP0506HT-C* MCY-MHP0606HT-C* MCY-MHP0506HT MCY-MHP0606HT MCY-MHP0406HT-E MCY-MHP0506HT-E This service manual provides relevant explanations about new outdoor unit. Please refer to the following service manuals for each indoor units.
  • Page 2: Table Of Contents

    Contents Precautions for safety ..........7 1 Product summary .
  • Page 3 8 Test operation ............8 Test operation .
  • Page 4 10 Outdoor unit parts replacement methods ....... . 145 11 P.C. board exchange procedures........161 11-1.
  • Page 5 • The qualified service person is a person who installs, repairs, maintains, relocates and removes the air conditioners made by Toshiba Carrier Corporation. He or she has been trained to install, repair, maintain, relocate and remove the air conditioners made by Toshiba Carrier Corporation...
  • Page 6 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. Failure to wear the proper protective gear is dangerous because you will be more susceptible to injury, burns, electric shocks and other injuries.
  • Page 7 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. WARNING ELECTRICAL SHOCK HAZARD Disconnect all remote electric power supplies before servicing.
  • Page 8: 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.
  • Page 9 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 10 If, in the course of carrying out repairs, it becomes absolutely necessary to check out the electrical parts with the electrical control box cover of one or more of the indoor units and the service panel of the outdoor unit removed in order to find out exactly where the trouble lies, put a sign in place so that no-one will approach the Do not bring a work location before proceeding with the work.
  • Page 11 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. The poisonous gas generates when gas touches to fire such as fan heater, stove or cooking stove though the refrigerant gas itself is innocuous.
  • Page 12 Only a qualified installer or qualified service person 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 13 New refrigerant (R410A) This air conditioner adopts a new HFC type refrigerant (R410A) which does not deplete the ozone layer. 1. Safety caution concerned to new refrigerant The pressure of R410A is high 1.6 times of that of the former refrigerant (R22). Accompanied with change of refrigerant, the refrigerating oil has been also changed.
  • Page 14 4. Tools (1) Required Tools for R410A 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 R410A (Those which cannot be used for conventional refrigerant (R22)) 2) Tools exclusive for R410A, but can be also used for conventional refrigerant (R22) 3) Tools commonly used for R410A and for conventional refrigerant (R22) The table below shows the tools exclusive for R410A and their interchangeability.
  • Page 15: Product Summary

    Product summary 1-1. Outdoor unit Corresponding HP Power supply Cooling capacity (kW)* Heating capacity (kW)* Single-phase MCY-MHP0506HT-C* 14.0 16.0 220V (50Hz) Single-phase MCY-MHP0606HT-C* 15.5 17.0 220V (50Hz) Single-phase MCY-MHP0506HT 220V (60Hz) 14.0 16.0 220-240V (50Hz) Single-phase MCY-MHP0606HT 220V (60Hz) 15.5 17.0...
  • Page 16 0506HT, 0606HT Model type Model name MMU-AP****H 4-way Cassette MMU-AP****HP Compact 4-way Cassette MMU-AP****MH 2-way Cassette MMU-AP****WH MMU-AP****YH 1-way Cassette MMU-AP****SH Concealed Duct Standard MMD-AP****BH MMD-AP****H Concealed Duct High Static Pressure MMD MMD-AP****HP Slim Duct MMD-AP****S(P)H Compact Slim Duct MMD-AP****M(P)HY Ceiling MMC-AP****HP Floor Standing Cabinet...
  • Page 17: Branching Joints And Headers

    1-3. Branching joints and headers Model name Appearance i o j RBM-BY55E 1-4. PMV kit Model type Indoor unit capacity type Appearance 005 to 014 type 015 to 027 type...
  • Page 18: Construction Views

    Construction views...
  • Page 20: Wiring Diagram

    Wiring diagram t° t° t° t° t°...
  • Page 21: Parts Rating

    Parts rating 4-1. Outdoor unit DA422A3T-20MD1 Output: 5.60 kW 4-way valve coil SQ-A2522G-000371 AC220-240V, 50/60Hz FQ-G593 AC220-240V, 50/60Hz SV2, SV4 valve coil l i o PQ-M10012-000230 DC12V Pressure sensor (For high pressure) AAG-M35YLTF-1 DC5V 0-3.92MPa Pressure sensor (For low pressure) AAG-L25YLTF-1 DC5V 0-0.98MPa High-pressure SW...
  • Page 22: Parts Layout In Outdoor Unit

    4-3. Parts layout in outdoor unit SV2 valve SV4 valve 4-way valve Low pressure sensor High pressure sensor High pressure SW TD sensor (Pulse Motor Valve) Check joint(Low pressure) Check joint(High pressure) TL sensor TS sensor TO sensor TE sensor...
  • Page 23: Parts Layout In Inverter Assembly

    4-4. Parts layout in inverter assembly Noise Filter P.C.board (MCC-1551) IPDU P.C.board (MCC-1690) Interface P.C. board (MCC-1639) Communication Power supply terminal block terminal block...
  • Page 24: Outdoor (Inverter) Print Circuit Board

    4-5. Outdoor (inverter) print circuit board 4-5-1. Interface P.C. board (MCC-1639) Option input/output Jumper select CN508 CN510 CN513 CN511 CN509 CN512 SW 04,05,15 7-segment LED SW 06,07,09,10 SW 01,02,03 SW 11,12,13,14 PS sensor CN500 SW 16,17 PD sensor CN501 PMV 1 output CN300 Sensor input TL CN523 TS CN505 TE CN520 TD CN502 TO CN507...
  • Page 25: Inverter P.c. Board (Mcc-1690) Ipdu

    4-5-2. Inverter P.C. board (MCC-1690) IPDU Power supply High-pressure Power supply switch input Input (Reactor) Input (Neutral) CN500(Red) CN05(Black and Red) CN02(White)                   ...
  • Page 26: Noise Filter (Mcc-1551)

    4-5-3. Noise filter (MCC-1551) CN04 (White) CN02 (White) Power supply output (Neutral) Line Filter Power supply input (Neutral) CN03 (Black) CN08 (White) CN01 (Black) Power supply output (Live) Power supply output Power supply input...
  • Page 27: Refrigerant Piping Systematic Drawing

    Refrigerant piping systematic drawing Outdoor unit Sensor (TO) Heat exchanger Sensor (TE) Strainer 4-Way valve Sensor (TS) Solenoid valve (SV4) Strainer Check joint Solenoid valve High pressure Check joint (SV2) sensor Sensor (TL) High pressure Low pressure sensor Capillary Muffler tube Sensor (TD) Accumulator...
  • Page 28: Control Outline

    Explanation of functional parts Functional part na (Hot gas bypass) (Connector CN311 : White) 1) Low pressure release function 2) High pressure release function 3) Gas balance function during stop time 4) Hot gas bypass into accumulator (Start compensation valve of compressor) Solenoid valve (Connector CN312: Red) 1) For gas balance start...
  • Page 29 Control outline Outdoor unit Item Description of operation, numerical data, and other information Remarks 1. Pulse PMV1 control motor valve 1) During air conditioner operation, the pulse count of a PMV (pulse motor valve) is (PMV) controlled between 30 and 500. control 2) During cooling, the PMV opening is controlled on the basis of measurements provided by the TL temperature sensor and the PD pressure sensor (subcool...
  • Page 30 Item Description of operation, numerical data, and other information Remarks 2. Outdoor 2. Heating fan control fan control 1) Outdoor fan speed (mode) is controlled on the basis of measurements provided by (continued) the TE temperature sensor. 2) If TE > 25 °C is continuously detected for 5 minutes, the operation may stop. 3) For a specified period after air conditioner startup and during defrosting, this control is disabled.
  • Page 31 Item Description of operation, numerical data, and other information Remarks 1. SV2 gas balance control 6. Release This control function is aimed at achieving gas balance by opening SV2 while valve control compressor is turned off so as to reduce its startup load the next time it is turned on.
  • Page 32 Item Description of operation, numerical data, and other information Remarks 7. Frequency High pressure release control release This function is to correct the operation command of the compressor and suppress the control rise of high pressure. 1. Cooling frequency release control 1) Control contents The operation frequency is decreased by 1 step when PD pressure 3.8 MPa.
  • Page 33 Item Description of operation, numerical data, and other information Remarks 8. IPDU 2. Heat sink temperature detection control • IPDU is provided with a TH sensor. control 1) This control performs the IGBT overheat protection by the detection of the TH (continued) sensor in Module Q201 for compressor driven in IPDU.
  • Page 34 <Other points to note> Cooling operation under low outside temperature conditions 1) If pressure falls to extremely low levels, indoor units may be shut down via freeze prevention control based on the indoor TC sensor. 2) If pressure falls to extremely low levels, frequency may be reduced via cooling capacity control. 3) When the discharge temperature sensor reading falls below 60 °C, the frequency may be increased above the level called for by the command received from the indoor unit.
  • Page 35: Applied Control For Outdoor Unit

    Applied control for outdoor unit Priority operation mode setting (cooling / heating / number of units / or priority indoor unit) functions are made available by setting relevant switches provided on the interface P.C. board of the outdoor unit. 7-1. Priority operation mode setting Purpose / characteristics This function allows switching between priority cooling and priority heating.
  • Page 36 (2) Indoor unit setup method for priority indoor unit mode The setting can be changed only when the system is at rest. (Be sure to turn off the system prior to this operation.) Push the buttons simultaneously and hold for at least 4 seconds.
  • Page 37: Applied Control Of Outdoor Unit

    7-2. Applied control of outdoor unit 7-2-1. Optional P.C. board of outdoor unit installation Placing position Install the optional P.C. boards on top of the power supply terminal block in the outdoor unit. Be sure to turn off the power switch before installing. (1) Holes for installing supports are provided on the top of the power supply terminal block in the electrical box.
  • Page 38 Optional control P.C. boards provide access to a range of functions as listed below. Control P.C. board to be used Outdoor unit interface P.C. board setting* Jumper to be PCDM4E PCMO4E PCIN4E Connector No. DIP SW No. removed Power peak-cut control (Standard) –...
  • Page 39: Power Peak-Cut Control (Standard)

    7-2-2. Power peak-cut control (standard) L1: Display lamp ensuring power peak cut control Outdoor unit Locally procured Optional PCB Power Display Outdoor unit supply relay interface PCB [OPERATION] Shield wire PJ17 CN513 SW07 [ON] [OFF] Bit 2 OFF Shield Connection cable wire For SW1 and SW2, be sure to provide no- voltage contacts for each terminal.
  • Page 40: Power Peak-Cut Control (Extended)

    <SW07 Bit 2 OFF (two-step control)> Power peak-cut control is enabled as long as SW1, as shown on the wiring diagram, is ON (continuously). Jumper wire Input 0 % (forced stop) 60 % capacity (upper limit regulated) 100 % (normal operation) 100 % (normal operation) Note 1: Specifications of display relay contact •...
  • Page 41: Snowfall Fan Control

    7-2-4. Snowfall fan control Outdoor unit Locally procured Connection Outdoor unit Optional PCB Snowfall sensor cable interface PCB COOL Shield HEAT wire SW1: Snowfall detection switch (snowfall sensor) Operation An external snowfall signal turns on the outdoor unit fan. Terminal Input signal Operation Snowfall fan control...
  • Page 42: Night Operation (Sound Reduction) Control

    7-2-6. Night operation (sound reduction) control Outdoor unit Locally procured Connection Outdoor unit Optional PCB cable interface PCB COOL HEAT Shield wire SW1: Night time signal switch Operation This function decreases noise at night or other times as necessary. Terminal Input signal Operation Night time control...
  • Page 43: Operation Mode Selection Control

    7-2-7. Operation mode selection control Outdoor unit Locally procured Connection Outdoor unit Optional PCB cable interface PCB COOL HEAT Shield wire SW1: Cooling mode specified input switch SW2: Heating mode specified input switch NOTE SW1: COOL mode selection switch SW2: HEAT mode selection switch Input signal Operation Remarks...
  • Page 44: Error / Operation Output

    7-2-8. Error / Operation output Locally procured Outdoor unit (See “NOTE”) Outdoor unit Optional PCB interface PCB OUTPUT1 SW16 OUTPUT2 OUTPUT3 Shield wire Operation In-operation output: An in-operation indication signal is output as long as at least one indoor unit is in operation in the line.
  • Page 45: Test Operation

    Test operation 8-1. Procedure and summary of test operation A test operation is executed with the following procedure.When a problem occurs at any step, remove the causes of the problem referring to “9 Troubleshooting.” This main power supply check shall be done before operation Checks before test operation switch turns ON This main power supply check shall be done before operation...
  • Page 46: Check Items Before Test Operation (Before Powering-On)

    8-2. Check items before test operation (before powering-on) Prior to the test operation, check the following items to verify there are no problems with the installation work. Main check items for electric wiring The communication system differs from that of R22 or R407 refrigerant “Modular Multi system” air conditioners. Check wiring points again carefully.
  • Page 47 (2) In the case that a central control system is connected (before address setup) Central remote controller (1) (2) To other refrigerant line Other refrigerant line SW13 SW14 CN10 SW13 SW14 Outdoor unit CN10 CN02 SW30 CN02 SW30 To indoor unit Indoor unit Remote Remote...
  • Page 48 Checklist 1 Using Checklist 1, check that there are no problems with the installation work. Is the capacity of the circuit breaker Outdoor unit Indoor unit (Earth leakage breaker) appropriate? Is the gauge of the Outdoor unit Indoor unit power cable correct? n i l Central control system connection terminals (U3, U4) Is the power of indoor units supplied collectively?
  • Page 49 Checklist 2 Calculate the additional amount of refrigerant from the following: Additional refrigerant Corrective amount of Additional refrigerant Compensation by Real length of liquid charge amount per 1 m refrigerant depending charge amount at local outdoor HP pipe liquid pipe on the indoor units site (Table 3)
  • Page 50: Check At Main Power-On

    8-3. Check at main power-on After turning on the main power of the indoor units and outdoor unit in the refrigerant line to conduct a test operation, check the following items in each outdoor and indoor unit. (After turning on the main power, be sure to check in order: indoor unit outdoor unit.) <Check on the outdoor unit>...
  • Page 51: Address Setup

    8-4. Address setup This product requires address setup before operation. Follow this procedure for address setup. 8-4-1. Precautions (1) Address setup is not performed simply by turning on the power supply. (2) For indoor units, address setup can be done either by manual address setup or by automatic address setup: Automatic address setup: Setup from SW15 on the interface P.C.
  • Page 52: Address Setup Procedure

    8-4-3. Address setup procedure (Single refrigerant line): ress setting procedure 1 Central control of 2 or more refrigerant lines: go to Address setting procedure 2 When controlling a single refrigerant line When controlling 2 or more refrigerant lines (Example) centrally centrally Address setting procedure...
  • Page 53 (Example) Controlling 2 or more refrigerant lines as a group Outdoor Outdoor System wiring diagram Indoor Indoor Indoor Indoor (Group control) Remote controller Address setting procedure 2 Set a line address for each system using SW 13 and 14 on the interface P.C. board on the outdoor unit of each system.
  • Page 54 Be sure to disconnect the relay connectors CN10 which mounted interface P.C. board from CN02, on all the outdoor unit that will be connected to the central control. CN02 CN10 Communication terminal board Turn on indoor units first, and then turn on outdoor unit. About 1 minute after turning the power on, confirm that the 7-segment display on the interface U.
  • Page 55 Set the central control address. (For the setting of the central control address, refer to the installation manuals of the central control devices.) Outdoor unit interface P.C. board 7-segment display SW30 * Outdoor units are connected to the same central control, except the outdoor unit with the smallest line address number.
  • Page 56 Switch setting (setting example when controlling 2 or more refrigerant lines centrally) Outdoor units (setting manually) *The items in bold font must be set manually. Outdoor unit’s Outdoor unit Outdoor unit Outdoor unit Factory default interface P.C. board SW13, 14 (Line (system) address) DIP switch 2 of SW30 Set to OFF...
  • Page 57 Manual address setting with 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 58 <Line (system) address> Push the TEMP. buttons repeatedly to set the CODE No. to Push the TIME buttons repeatedly to set a line address. (Match the address with the address on the interface P.C. board of the outdoor unit in the same refrigerant line.) Push button.
  • Page 59 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 see the indoor unit address of an indoor unit having location data. 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 60 (Execute it while the units are stopped.) The indoor unit numbers in a group are indicated one after another. The fan and louvers of the indicated units are activated. Push and hold the buttons at the same time for more than 4 seconds. •...
  • Page 61 To select another line address Push the button to return to step • After returning to step , select another line address and check the indoor unit addresses of the line. Push the button to finish the procedure. Changing the indoor unit address using a remote controller To change an indoor unit address using a wired remote controller.
  • Page 62 To change all the indoor unit addresses using an arbitrary wired remote controller. (The method is available when the addresses have already been set automatically.) (When communication wirings of 2 or more refrigerant lines are interconnected for central control) NOTE You can change the addresses of indoor units in each refrigerant line using an arbitrary wired remote controller.
  • Page 63 Push the TIME buttons repeatedly to change the value of the indoor unit address in SET DATA. Change the value in SET DATA to that of a new address. Push the button to confirm the new address on SET DATA. Push the button (left side of the button) repeatedly to select another address to change.
  • Page 64 Turn on the indoor and outdoor units of the refrigerant line to be initialized in addresses. About one minute after turning on the power, confirm that the 7-segment display on the outdoor unit indicates “U.1. - - -” and operate the interface P.C. board on the outdoor unit of the refrigerant line as follows.
  • Page 65 In the case of an increase in address-undefined indoor units (extension, etc.) To set up the indoor address of a unit with an address that is undefined due to the extension of indoor units or replacement of P.C. board, etc., follow the methods below. Method 1 Set up an address individually from a wired remote controller.
  • Page 66: Check After Address Setup When Central Control System Is Connected

    8-4-4. Check after address setup when central control system is connected When the central control system is connected, check that the following setup has finished after address setup. Central remote controller To other refrigerant line Other refrigerant line Outdoor unit Outdoor unit Outdoor unit SW13 SW14...
  • Page 67: Troubleshooting In Test Operation

    8-5. Troubleshooting in test operation If there are phenomena such as the output of a check code or the remote controller is not accepted when powered- on after wiring work or during address setup operation, the following causes are considered. 8-5-1.
  • Page 68: Operation From The Indoor Remote Controller Is Not Accepted, And A Check Code Is Displayed On The 7-Segment Display Of The Interface P.c. Board Of The Outdoor Unit

    8-5-2. Operation from the indoor remote controller is not accepted, and a check code is displayed on the 7-segment display of the interface P.C. board of the outdoor unit. Outdoor Indoor remote unit 7- controller segment status display Line addresses and indoor addresses of all the connected Set up addresses.
  • Page 69: In Checking The Number Of Connected Outdoor Units And Connected Indoor Units After

    8-5-4. In checking the number of connected outdoor units and connected indoor units after address setup, a lower number of connected units is displayed. (There are outdoor / indoor units that do not operate in a test operation.) Miswiring of communication lines between indoor units After modification of wiring, set up the addresses again and The number of connected indoor...
  • Page 70: Test Operation Check

    8-6. Test operation check 8-6-1. Fan check START Check code appears Push the Start / Stop button on the remote controller. When a check code has been displayed on the remote controller, remove the cause of the check code, referring to "Check code and check position Check code displayed on remote controller and...
  • Page 71: Cooling / Heating Test Operation Check

    8-6-2. Cooling / Heating test operation check The cooling / heating test operation check can be performed on both the indoor remote controller and the outdoor unit interface P.C. board. (1) Test operation start / stop operation Test operation from the indoor remote controller •...
  • Page 72 Wireless remote controller (4-way Cassette Wireless remote controller (Ceiling type and type) 1-way Cassette SH type) Procedure Operation content Procedure Operation content Start When Temporary button is pushed for 10 seconds or more, “Pi!” sound is heard and Push Temporary operation button. the operation changes to a forced cooling •...
  • Page 73 (2) Test operation START Refer to "Test operation procedure" Test operation for one indoor unit of the indoor remote controller. The operation does not start for approximately 3 minutes after Operation starts powering-on or stopping operation. Note: After powering-on, it may require up to 10 minutes to start the operation due to the initial communications of the system.
  • Page 74 Note 1: Criteria for the difference between suction and discharge temperatures (1) Cooling operation After operating for a minimum of 30 minutes in “COOL” mode, if the T dry bulb temperature difference between suction and discharge air of the indoor unit is 8 °C or more, it is normal. (2) Heating operation After operating for a minimum of 30 minutes in “HEAT”...
  • Page 75: Service Support Function

    8-7. Service support function 8-7-1. Check function for connecting of refrigerant and control lines This function is provided to check misconnection of the refrigerant pipes and the control transmission line (Wiring over lines) between indoor unit and outdoor unit by using the switch on the interface P.C. board of the outdoor unit. However, be sure to check the following items prior to executing this check function.
  • Page 76 Operation start (7-segment display) Press the push-switch SW04 on the interface P.C. board of the outdoor unit for 2 seconds or more. The operation starts. Cooling Operation Check that 7-segment display [B] shows [CC] for Heating cooling and [ HH] for heating. Confirmation of check results (1) (7-segment display) This check operation...
  • Page 77: Function To Start / Stop (On / Off) Indoor Unit From Outdoor Unit

    8-7-2. Function to start / stop (ON / OFF) indoor unit from outdoor unit The following functions of the indoor unit can start or stop by the switches on the interface P.C. board of the outdoor unit. Cooling test Changes the mode of all the [Setup] Section A Section B...
  • Page 78 (1) Cooling test operation function This function is provided to change collectively the mode of all the indoor units connected to the same system for the cooling test operation mode, by using switches on the interface board of the outdoor unit. <Operation procedure>...
  • Page 79 (2) Heating test operation function This function is provided to change collectively the mode of all the indoor units connected to the same system for the heating test operation mode, by using switches on the interface board of the outdoor unit. <Operation procedure>...
  • Page 80 (3) Batch start / stop (ON / OFF) function This function is provided to start / stop collectively all the indoor units connected to the same system by using switches on the interface board of the outdoor unit. <Operation procedure> Be sure to turn on the power at indoor Power ON side before power-ON of outdoor unit.
  • Page 81 (4) Individual start / stop (ON / OFF) individual test operation function This function is provided to start / stop (ON / OFF) individually each indoor unit connected to the same system by using switches on the interface board of the outdoor unit. Set SW01 [16] and set SW02, SW03 to indoor address No.
  • Page 82: Check Code Clearing Function

    8-7-3. Check code clearing function (1)Clearing from the main remote controller Check code clearing in outdoor unit Check code of the outdoor unit currently detected is cleared by the unit of one refrigerant circuit system to which the indoor units operated by the remote controller is connected. (Check code of the indoor unit is not cleared.) For clearing check codes, the service monitor function of the remote controller is used.
  • Page 83 (2)Clearing check code by using switches on the interface board of the outdoor unit Using the switches on the interface P.C. board of the outdoor unit, this function is to clear the currently detected check code for each refrigerant circuit system without resetting the power supply. Check codes in both outdoor and indoor units are once cleared, and check code detection is performed again.
  • Page 84: Remote Controller Distinction Function

    8-7-4. Remote controller distinction function This function is provided to distinguish the remote controller connected to the indoor unit from the outdoor unit for a refrigerant circuit system by using switches on the interface P.C. board of the outdoor unit. <Distinction procedure>...
  • Page 85: Pulse Motor Valve (Pmv) Forced Open / Close Function In Indoor Unit

    8-7-5. Pulse motor valve (PMV) forced open / close function in indoor unit This function is provided to open or close forcedly PMV for 2 minutes in all the indoor units by the switch operation on the interface P.C. board of the outdoor unit. This function is also used to open PMV fully when turning off the power and executing an operation.
  • Page 86: Solenoid Valve Forced Open / Close Function In Outdoor Unit

    8-7-7. Solenoid valve forced open / close function in outdoor unit This function is provided to forcedly open each solenoid valve mounted in the outdoor unit by the switch operation on the interface P.C. board in the outdoor unit. Use this function to check there is no refrigerant clogging with ON / OFF operation of the solenoid valve.
  • Page 87: Fan Operation Check In Outdoor Unit

    8-7-8. Fan operation check in outdoor unit This function is provided to check the fan operation of the outdoor unit by using switches on the interface P.C. board in the outdoor unit. The frequency of the fan speed can be controlled by setting of the switches. Use this function to check the operation or abnormal sound in the fan system.
  • Page 88: Manual Adjustment Function Of Outside Temperature (To) Sensor

    8-7-9. Manual adjustment function of outside temperature (TO) sensor This function is provided to fix TO sensor value manually by the switch operation on the interface P.C. board in the outdoor unit. When the unit stops abnormally due to TO sensor failure, etc, an emergent operation is available by setting up the value manually to position near the current outside temperature.
  • Page 89: Service Support Function List

    8-7-10. Service support function list SW01 SW02 SW03 7-segment di Refrigerant circuit and control communication line check function (Cooling [J . C] operation) Refrigerant circuit and control communication line check function (Heating operation) l l u l l o n i l e l l v i t .
  • Page 90: Monitor Function Of Remote Controller Switch

    8-7-11. Monitor function of remote controller switch When using a remote controller with the model name RBC-AMT32E, the following monitor functions can be used. Calling of service monitor display screen <Content> The sensor temperature or operation status of the remote controller, indoor unit, or the outdoor unit can be known by calling up the service monitor mode from the remote controller.
  • Page 91: Troubleshooting

    Troubleshooting 9-1. Overview (1) Before engaging in troubleshooting (a) Applicable models Indoor units: MMO-APOOO, Outdoor units: MCY-MHPOOO6 (b) Tools and measuring devices required • Screwdrivers (Philips, flat head), spanners, long-nose pliers, nipper, pin to push reset switch, etc. • Multimeter, thermometer, pressure gauge, etc. (c) Things to check prior to troubleshooting (behaviors listed below are normal) A compressor would not start •...
  • Page 92: Troubleshooting Method

    9-2. Troubleshooting method The remote controllers (main remote controller and central controller) and the interface P.C. board of an outdoor unit are provided with an LCD display (remote controller) or a 7-segment display (outdoor interface P.C. board) to display operational status. Using this self-diagnosis feature, the trouble site / trouble part may be identified in the event of a trouble by following the method described below.
  • Page 93 (Check code detected by main remote controller) Check code Display of receiving unit Outdoor 7-segment display Indicator light block Main Typical trouble site check code remote Operation Timer Ready Sub-code controller Flash No master remote controller, troubled Signals cannot be received from indoor unit; master –...
  • Page 94 List of Check Codes (Outdoor Unit) IPDU: Intelligent Power Drive Unit (Inverter P.C. board) : Lighting, : Flashing, : Goes off (Check codes detected by outdoor interface - typical examples) ALT: Flashing is alternately when there are two flashing LED SIM: Simultaneous flashing when there are two flashing LED Check code Display of receiving unit...
  • Page 95 Check code Display of receiving unit Outdoor 7-segment display Indicator light block TCC-LINK Typical trouble site Description of check code central control or main remote Operation Timer Ready Sub-code controller Flash display Outdoor EEPROM is troubled (alarm and check – shutdown for outdoor unit and continued code operation...
  • Page 96 (Errors detected by IPDU featuring in outdoor unit - typical examples) Check code Display of receiving unit Outdoor 7-segment display Indicator light block TCC-LINK Typical trouble site Description of check code central control or main remote Operation Timer Ready Sub-code Flash controller display...
  • Page 97: Troubleshooting Based On Information Displayed On Remote Controller

    9-3. Troubleshooting based on information displayed on remote controller Using main remote controller (RBC-AMT32E) (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. Check codes are only displayed while the air conditioner is in operation.
  • Page 98 Using TCC-LINK central remote controller (TCB-SC642TLE2) (1) Checking and testing Display of Unit No. Display of check code 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. Check codes are only displayed while the air Alternate blinking conditioner is in operation.
  • Page 99 Using indoor unit indicators (receiving unit light block) (wireless type) To identify the check code, check the 7-segment display on the outdoor unit. To check for check codes not displayed on the 7-segment display, consult the “List of Check Codes (Indoor Unit)” in “9-2. Troubleshooting method”.
  • Page 100 check code Discharge temperature sensor (TD) trouble Operation Timer Ready Heat exchanger temperature sensor (TE) trouble Liquid temperature sensor (TL) trouble Outdoor unit temperature sensor Outside air temperature sensor (TO) trouble troubles Alternate blinking Suction temperature sensor (TS) trouble Heat sink sensor (TH) trouble Wiring trouble in heat exchanger sensor (TE) and liquid temperature sensor (TL) Outdoor unit temperature sensor wiring / installation trouble Wiring trouble in outdoor high pressure sensor (PD) and low pressure sensor (PS)
  • Page 101: Check Codes Displayed On Remote Controller And Outdoor Unit (7-Segment Display On I/F Board) And Locations To Be Checked

    9-4. Check codes displayed on remote controller and outdoor unit (7-segment display on I/F board) and locations to be checked For other types of outdoor units, refer to their own service manuals. Check code Location Check code detection Outdoor 7-segment display Description System status Check items (locations)
  • Page 102 Check code Location Outdoor 7-segment display Check code detection Description System status Check items (locations) Main condition(s) detection remote Check Sub-code controller code Remote Duplicated Stop of In two remote controller • Check remote controller controller master remote corresponding configuration (including settings.
  • Page 103 Check code Location Outdoor 7-segment display Check code detection Description System status Check items (locations) Main condition(s) remote detection Check Sub-code controller code Indoor Indoor TCJ Stop of Sensor resistance is infinity • Check connection of TCJ unit sensor trouble corresponding or zero (open / short circuit).
  • Page 104 Check code Location Outdoor 7-segment display Check code detection Description System status Check items (locations) Main condition(s) detection remote Check Sub-code controller code IPDU TH sensor trouble All stop Sensor resistance is zero • Trouble in IGBT built-in (short circuit). temperature sensor –...
  • Page 105 Check code Location Outdoor 7-segment display Check code detection Description System status Check items (locations) Main condition(s) detection remote Check Sub-code controller code IPDU Current All stop Current flow of at least • Check current detection detection circuit specified magnitude is circuit wiring.
  • Page 106 Check code Location Outdoor 7-segment display Check code detection Description System status Check items (locations) Main condition(s) remote detection Check Sub-code controller code Indoor Connection of Stop of There is at least one stand- • Check indoor addresses. unit group control corresponding alone indoor unit to which –...
  • Page 107 Check code Location Outdoor 7-segment display Check code detection Description System status Check items (locations) Main condition(s) detection remote Check Sub-code controller code IPDU Activation of All stop High-pressure SW is • Check connection of high-pressure activated. high-pressure SW connector. •...
  • Page 108 Check code Location Outdoor 7-segment display Check code detection Description System status Check items (locations) Main condition(s) detection remote Check Sub-code controller code • Inverter DC voltage is too • Check for trouble in outdoor Inverter DC All stop high (overvoltage) or too P.C.
  • Page 109 Check code Location Check code detection Outdoor 7-segment display Description System status Check items (locations) Main condition(s) detection remote Check Sub-code controller code 01: TS All stop Protective shutdown due to • Check for insufficiency in condition leakdetection sustained suction refrigerant quantity.
  • Page 110 Check code Location Outdoor 7-segment display Check code detection Description System status Check items (locations) Main condition(s) detection remote Check Sub-code controller code ・Check fan motor. (Sub code: *0) *0: IGBT short IPDU Outdoor fan All stop ・Check for trouble in IPDU Fan IPDU over current circuit IPDU error...
  • Page 111 Errors detected by TCC-LINK central control device Check code Location Check code detection Outdoor 7-segment display Description System status Check items (locations) Main condition(s) remote detection Sub-code controller TCC-LINK TCC-LINK Continued Central control device is • Check for trouble in central central control operation unable to transmit signal.
  • Page 112 Points to Note When Servicing Compressor (1) When checking the outputs of inverters, remove the wiring from the compressors. How to Check Inverter Output (1) Turn off the power supply. (2) Remove compressor leads from the IPDU P.C. board. (Be sure to remove all the leads.) (3) Turn on the power supply and start cooling or heating operation.
  • Page 113: Diagnosis Procedure For Each Check Code

    9-5. Diagnosis procedure for each check code...
  • Page 136: 7-Segment Display Function

    9-6. 7-segment display function 7-segment display on outdoor unit (interface P.C. board) The interface control P.C. board features a 7-segment LED display designed to check operational status. Display items can be changed by changing the combination of the number settings of rotary switches provided on the P.C. board (SW01, SW02 and SW03).
  • Page 137 (1)Display of system information (displayed on outdoor unit) Refrigerant name Display refrigerant name Refrigerant R410A System capacity A [4]~[6]:4 to 6HP [HP] Total capacity of indoor units A [i. No. of indoor units connected / A […0.]~[12.]:0 to 12 (No. of units connected) No.
  • Page 138 (2)Display of outdoor unit information (displayed on outdoor unit) Check code B Check code (only latest one displayed) If there is no check code, [– – –] is displayed. If there is sub-code, check code [ ] and sub-code [– ] are displayed alternately, for 3 seconds and 1 second, respectively.
  • Page 139 (3)Display of outdoor cycle data (displayed on outdoor unit) PD pressure data PD pressure (MPaG) is displayed in decimal format. (MPaG: Approx. 10 times magnitude of kg/cm P d. PS pressure data PS pressure (MPaG) is displayed in decimal format. P S.
  • Page 140 (4)Display of indoor unit information (displayed on outdoor unit) Indoor BUS communication signal B Upon receiving signal: [… … 1], Other times: [… … …] receiving status Indoor check code B No check code: [– – –] Indoor HP capacity 0.6 to 6.0 HP : […0.6] to […6.0] Indoor request command B [ #.
  • Page 141: Sensor Characteristics

    9-7. Sensor characteristics Outdoor Unit Temperature sensor characteristics Outdoor TS, TE, TL and TO sensors Temperature [°C] Resistance [k ] 101.7 76.3 57.7 44.0 33.8 Resistance 26.1 [k ] 20.4 (10 °C or below) Resistance [k ] 16.0 (10 °C or above) 12.6 10.0 33.8k...
  • Page 142 Outdoor Unit Pressure sensor characteristics • Input / output wiring summary High pressure side (PD) Low pressure side (PS) Pin No. Input / output name Lead wire color Input / output name Lead wire color OUTPUT White — — — —...
  • Page 143 Indoor TC1 sensor Temperature [°C] Resistance [k ] Resistance Resistance [k ] [k ] (10 °C or below) (10 °C or above) Temperature [°C] Indoor TC2 and TCJ sensors Temperature [°C] Resistance [k ] Resistance Resistance [k ] [k ] (10 °C or below) (10 °C or above) Temperature [°C]...
  • Page 144: Pressure Sensor Output Check

    9-8. Pressure sensor output check Outdoor Unit Pd sensor characteristics 0 to 3.92 MPa (0.5 to 4.5 V output for 0 to 3.92 MPa) Voltage readings across pins 1 and 3 of CN501 on I/F P.C. board (with negative-side probe of multimeter placed on pin 3) VOLT VOLT...
  • Page 145 Outdoor Unit Ps sensor characteristics 0 to 0.98 MPa (0.5 to 3.5 V output for 0 to 0.98 MPa) Voltage readings across pins 2 and 3 of CN500 on I/F P.C. board (with negative-side probe of multimeter placed on pin 3) VOLT VOLT VOLT...
  • Page 146: Outdoor Unit Parts Replacement Methods

    Outdoor unit parts replacement methods Step Component Procedure Remarks Common WARNING (front panel, upper panel) Do not detach the inverter for 5 minutes after Front panel turning off the breaker as doing so may cause electric shocks. CAUTION (Fig. 1-1) Wear gloves when working on it.
  • Page 147 Step Component Procedure Remarks Discharge 1. Detachment cabinet 1) Remove the front panel and upper panel. [Step.1] 2) Remove the screws of the discharge cabinet top of the heat exchanger plate. (M4×10, 1) (Fig. 2-1) Heat exchanger plate screw (1 position) Discharge cabinet (Fig.
  • Page 148 Step Component Procedure Remarks Side panel 1. Detachment 1) Remove the front panel and upper panel. Side panel [Step.1] Heat exchanger 2) Remove the screws of side panel and heat plate exchanger plate. (M4×10, 3) (Fig.3-1, 3-2) 3) Remove the screws of the side panel and bottom plate.
  • Page 149 Step Component Procedure Remarks Interface Interface P.C. board WARNING attachment plate P.C.board attachment plate Do not detach the inverter for 5 minutes after turning off the breaker as doing so may cause Lead wire clamps electric shocks. (2 positions) Banding band (1 position) 1.
  • Page 150 Step Component Procedure Remarks Termina Terminal WARNING attachment plate attachmentl plate Do not detach the inverter for 5 minutes after turning off the breaker as doing so may cause electric shocks. 1. Detachment 1) Remove the front panel and upper panel. [Step 2) Remove the 4 screws fixing the terminal attachment plate to remove it.
  • Page 151 Step Component Procedure Remarks IPDU P.C. WARNING IPDU P.C. board board assembly assembly Do not detach the inverter for 5 minutes after turning off the breaker as doing so may cause electric shocks. 1. Detachment 1) Remove the front panel , upper panel, discharge panel, side panel, interface P.C.
  • Page 152 Step Component Procedure Remarks Interface P.C. WARNING board Interface Do not detach the inverter for 5 minutes after P.C. board turning off the breaker as doing so may cause electric shocks. 1. Detachment 1) Remove the front panel, and perform 4) of Step Support hooks 4.
  • Page 153 Step Component Procedure Remarks IPDU P.C. WARNING board Do not detach the inverter for 5 minutes after turning off the breaker as doing so may cause electric shocks. 1. Detachment Banding band (2 positions) Banding band (1 position) 1) Remove the front panel, upper panel, side (Fig.
  • Page 154 Step Component Procedure Remarks Reactor Reactor WARNING Do not detach the inverter for 5 minutes after turning off the breaker as doing so may cause electric shocks. 1. Detachment 1) Remove the front panel , upper panel, side panel, interface P.C. board attachment plate, terminal attachment plate, and perform 2)~6) Screws (each 4 positions) of Step 9.
  • Page 155 Step Component Procedure Remarks Fan motor 1. Detachment 1) Remove the front panel,upper panel, discharge cabinet and fan motor lead. [step1, step2 and 3 of step6] 2) Cut the banding band (Fig.11-1). 3) Remove the connector connected between the fan motor and IPDU P.C. board CAUTION Disengage the lock on the housing to unplug the connector.
  • Page 156 Step Component Procedure Remarks Compressor 1. Removing the malfunctioning compressor Connection replacement (suction pipe) 1) Collect the refrigerant gas with the recovery TD sensor equipment. 2) Remove the front panel, upper panel, discharge cabinet, side panel, and P.C. board Connection assemblies.
  • Page 157 Step Component Procedure Remarks Compressor 1. Installation of compressor Sound insulation mat (Outside) × 1 installation 1) Install the compressor in the reverse procedure Sound insulation mat (Inside) × 1 of removal. Suction pipe CAUTION Discharge pipe Sound insulation mat (Upper) × 1 The tightening torque of the hexagonal bolt to fix the compressor is 11.0 N•m (110 Kgf•cm).
  • Page 158 Step Component Procedure Remarks PMV coil 1. Detachment 1) Remove the front panels, and upper panel. [Step.1] 2) Remove the connector connected between the interface P.C. board and PMV coil. PMV coil and body CN300 ...PMV coil (6P: white) 3) Remove the lead wire from the lead wire clamp (1 position) and the banding band (1 position).
  • Page 159 Push the hooks (8 positions) with your hand to ( Fig. 15-1 ) fix them. Hooks (8 positions) Discharge cabinet Fan guard CAUTION Confirm that all the hooks are securely fixed to specified positions. Example: MCY-MHP0506HT-C’s fan guard. (Fig. 15-2) Hooks (Fig. 15-3) Flat-head driver...
  • Page 160 Step Component Procedure Remarks Heat 1. Detachment exchanger 1) Collect the refrigerant gas with the recovery assembly Screws equipment. heat exchanger 2) Remove the front panel , upper panel, -inverter assemble discharge panel, and side panel. (2 positions) [Step 1, Step 2, Step 3] 3) Remove the TO sensor holder, TE sensor, and Screws binding bands (3 position).
  • Page 161 Step Component Procedure Remarks Handle 1. Detachment (Front panel) 1) Remove the front panel. [Step.1] Cushioning 2) Remove the cushioning without tearing it. (Fig.17-1) 3) Use a flathead screwdriver or something to press on the 3 clamp hooks on the handle. (Fig.17-2) 2. Attachment (Fig. 17-1) 1) install it in the reverse of the procedure to Flathead screwdriver remove it.
  • Page 162: C. Board Exchange Procedures

    P.C. board exchange procedures 11-1.Interface P.C.board Replacement procedure (MCC-1639: 43H69200) 1. Applicable models MCY-MHP0506HT-C* MCY-MHP0606HT-C* MCY-MHP0406HT-E MCY-MHP0506HT MCY-MHP0606HT MCY-MHP0506HT-E 2. Shipped parts list Please make sure that before you do the work, the following parts are shipped all. Parts name Quantity P.C.board Replacement Procedure Manual (English and Chinese each 1page A4 paper double side print.)
  • Page 163 If the model setting is not selected, inspection code “L10” will be displayed, and the outdoor unit operation will remain stopped. Jumper wires Model name Service P.C. board Factory default MCY-MHP0506HT-C*, MCY-MHP0506HT Disconnect Leave intact Leave intact Disconnect Disconnect MCY-MHP0606HT-C*, MCY-MHP0606HT...
  • Page 164: Ipdu P.c.board Replacement Procedure (Mcc-1690: 43H69201)

    11-2.IPDU P.C.board Replacement procedure (MCC-1690: 43H69201) 1. Applicable models MCY-MHP0506HT-C* MCY-MHP0606HT-C* MCY-MHP0406HT-E MCY-MHP0506HT MCY-MHP0606HT MCY-MHP0506HT-E 2. Shipped parts list Please make sure that before you do the work, the following parts are shipped all. Parts name Quantity P.C.board Replacement Procedure Manual(English and Chinese each 1page A4 paper double side print.)...
  • Page 165 IPDU P.C.board (43H69201) ③ Card spacer ① Single-touch spacer ② Screw (M4×14) ④ Screw (M4×8) Used to secure the lead wire P.C.board Screw tightening torque: 1.2 ±0.1 N•m First remove the Screws ②, and then ⑤ Screw(M3×20) remove the P.C. board assembly.
  • Page 166: Noisefilter P.c.board Replacement Procedure (Mcc-1551: 43H69012)

    11-3.Noisefilter P.C.board Replacement Procedure (MCC-1551: 43H69012) 1. Applicable models MCY-MHP0506HT-C* MCY-MHP0606HT-C* MCY-MHP0406HT-E MCY-MHP0506HT MCY-MHP0606HT MCY-MHP0506HT-E 2. Shipped parts list Please make sure that before you do the work, the following parts are shipped all. Parts name Quantity P.C.board Replacement Procedure Manual (English and Chinese each 1page A4 paper double side print.) Service P.C.board MCC-1551 (Noisefilter P.C.board) in Antistatic air cap...
  • Page 167 Noisefilter P.C.board ② Single-touch spacer (43H69012) ③ Screw (M3×20) P.C.board After removing screw ③, remove ⑤ Screws (M4x8) the P.C. board assembly. Used to secure lead wires Screw tightening torque: 1.2 ±0.1 N•m ① Card edge spacer ④ Screws (M4x8) Used to secure lead wires Push this in the Screw tightening torque:...
  • Page 168: Exploded Diagram / Parts List

    Exploded diagram / parts list...
  • Page 169 43H00032 PANEL, ASSY, FRONT, LOWER 43H02005 PANEL, ASSY, SIDE, LOWER 43H00033 PANEL, ASSY, TOP 43H19004 GUARD, FAN 43H190014 GUARD FAN 43H19013 PLATE, STAY 43H07004 GUARD, FIN, SIDE 43H11013 INSULATOR, SOUND, INNER 43H11008 INSULATOR, SOUND, OUTER, SMALL 43H07005 HANDLE 43H15002 MARK, TOSHIBA...
  • Page 170 Inverter assembly PC BOARD ASSY MCC-1690 PC BOARD ASSY MCC-1639 TE SENSOR TS SENSOR TL SENSOR TD SENSOR TO SENSOR LEAD ASSY,COMPRESSOR 黒 白 赤 PC BOARD ASSY MCC-1551 TERMINAL (3P,AC600V/60A)
  • Page 171 Q'ty/Set MCY-MHP Ref.No. Part No. Description 0506HT-C*, 0506HT 0606HT-C*, 0606HT 0406HT-E, 0506HT-E 43H69200 PC BOARD ASSY, INTERFACE, MCC- 1639 43H69012 PC BOARD ASSY, NOISE-FILTER, MCC-1551 43H69201 PC BOARD ASSY, IPDU, MCC-1690 43H60001 LEAD ASSY, COMPRESSOR 43H60011 TERMINAL, 3P (AC600V/60A) 43H50002 SENSOR, TD 43H50005 SENSOR...
  • Page 172 For the amount of charge in this example: 0.3 kg/m The possible amount of leaked refrigerant gas in rooms A, (countermeasures needed) B and C is 10kg. The possible amount of leaked refrigerant gas in rooms D, E and F is 15kg. Total amount of refrigerant Toshiba...
  • Page 173 TOSHIBA CARRIER CORPORATION 23-17, TAKANAWAN,3 CHOME,MINATOKU TOKYO, 108-0075, JAPAN Revision record Copyright © 1999 to 2012 TOSHIBA CARRIER CORPORATION, ALL Rights Reserved. First issue TOSHIBA CARRIER CORPORATION Revision record New type adds index 23-17, TAKANAWAN,3 CHOME,MINATOKU TOKYO, 108-0075, JAPAN First issue Oct.

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