Page 1 Revision 1: Jun. 2020 Revision 2: Jul. 2021 SERVICE MANUAL Revision 3: Aug. 2022 Revision 4: Oct. 2022 AIR-CONDITIONER (MULTI TYPE) Revision 5: May.2024 Revision 6: Dec.2024 OUTDOOR UNIT Model name: MCY-MHP0806HS8-E MCY-MHP0806HT8-C* MCY-MHP1006HS8-E MCY-MHP0906HT8-C* MCY-MHP0806HS8-TR MCY-MHP1006HT8-C* MCY-MHP1006HS8-TR MCY-MHP0706HS8-ME MCY-MHP0806HS8-ME MCY-MHP0906HS8-ME...
Page 2: Table Of Contents
Contents Precautions for safety ..........7 1 Product summary .
Page 3 8 Test operation ............
Page 4 10 Outdoor unit parts replacement methods ....... . 157 11 P.C. board exchange procedures........177 11-1.
Page 5: Original Instruction
Original instruction Please read carefully through these instructions that contain important information which complies with the “Machinery Directive” (Directive 2006/42/EC), and ensure that you understand them. Some of the details provided in these instructions differ from the service manual, and the instructions provided here take precedence.
Page 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
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: Declaration Of Conformity
NOTE This declaration becomes invalid if technical or operational modifications are introduced without the manufacturer’s consent. Specifications Sound pressure level (dBA) Model Weight (kg) Cooling Heating MCY-MHP0806HS8-E MCY-MHP1006HS8-E MCY-MHP0806HS8-TR MCY-MHP1006HS8-TR Product information of ecodesign requirements. (Regulation (EU) 2016/2281) http://ecodesign.toshiba-airconditioning.eu/en...
Page 14: New Refrigerant (R410A)
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 15: Explanation Of Symbols
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 16: Product Summary
28.0 Heating capacity (kW) * 28.0 29.5 31.5 For Middle East model Corresponding HP Power supply Power supply Three-phase 380∼415V (60Hz) MCY-MHP0706HS8-ME MCY-MHP0806HS8-ME MCY-MHP0906HS8-ME Three-phase 380 (50Hz) Cooling capacity (kW) * 19.9 22.3 24.9 Heating capacity (kW) * 19.9 22.3 24.9...
Page 17 Ceiling MMC-*P****HP* Floor Standing Cabinet MML-*P****H* Floor Standing Concealed MML-*P****BH* Floor Standing MMF-*P****H* MMK-AP****H* High Wall MMK-*P****HP* Console MML-*P****NH(P)* MMW-*P****LQ* MMW-*P****ALQ* * For details on these models, read the owner’s manuals that come with the indoor units. MCY-MHP****HS8-TR, MCY-MHP****HS8-E Model type Model Name 4-way Cassette MMU-*P****HP*...
Page 18: Branching Joints And Headers
MCY-MHP****HS8-ME Model type Model Name MMU-*P****HP* 4-way Cassette MMU-*P****H* Compact 4-way Cassette MMU-*P****MH(P)* 2-way Cassette MMU-*P****WH* MMU-*P****SH* 1-way Cassette MMU-*P****YH(P)* Concealed duct type MMD-*P****BHP* Slim duct type MMD-AP****SPH* Compact slim duct type MMD-*P****SPHY* Concealed duct High static pressure type MMD-*P****HP* Ceiling type MMC-*P****HP* MMK-UP****DHPL*...
Page 19: Construction Views
Construction views...
Page 21: Wiring Diagram
Wiring diagram Applicable except Middle East type...
Page 22 Only for Middle East type...
Page 23: Parts Rating
Parts rating 4-1. Outdoor unit RA641A3TB-22M Output: 5.60 kW 4-way valve coil DXQ-822 AC220-240V, 50/60Hz SV2, SV4, SV5 valve coil FQ-G593 AC220-240V, 50/60Hz TEV-SM0AJ2170A1 AC220-240V, 50Hz SV3 valve coil DC12V Pulse motor valve coil PAM-MD12TF-1 Pulse motor valve coil 4 PQ-M10012-000441 DC12V Pressure sensor (For high pressure)
Page 24: Parts Layout In Outdoor Unit
4-3. Parts layout in outdoor unit SV2 valve SV5 valve SV4 valve 4-way valve TS3 sensor Low pressure sensor TS1 sensor High pressure sensor High pressure sw PMV4 (Pulse Motor Valve) TL1 sensor PMV1 (Pulse Motor Valve) Check joint (Low pressure) Check joint (High pressure) TL3 sensor...
Page 25: Parts Layout In Inverter Assembly
4-4. Parts layout in inverter assembly Magnetic contactorinverter Inverter P.C. board for compressor [A3 IPDU] PTC themistor (MCC-1729) Noise filter P.C.board Inverter P.C. board for lower fan (MCC-1733) [Fan IPDU] (MCC-1728) Power supply terminal block Communication terminal block Interface P.C. board [Outdoor control P.C.
Page 26: Outdoor (Inverter) Print Circuit Board
4-5. Outdoor (inverter) print circuit board 4-5-1. Interface P.C. board (MCC-1639) SW 04,05,06 Option input/output 7-segment LED Jumper select CN508 CN510 CN513 SW 01,02,03 CN511 CN509 CN512 TD CN502 TS3 CN506 TS1 CN505 TK CN918 TO CN507 TE CN520 TL3 CN525 TL1 CN523 SW06,07,09,10 SW11,12,13,14 SW 16,17...
Page 27: Inverter P.c. Board For Compressor (Mcc-1729) A3-Ipdu
4-5-2. Inverter P.C. board for compressor (MCC-1729) A3-IPDU Power supply output (reactor) Power supply Input (L3) CN04 CN03(Black) Power supply Input (L2) CN02(White) Power supply Input (L1) CN01(Red) Compressor output Power supply output (rector) U-phase CN05 CN201(Red) Compressor output U-phase CN202(White) UART communication Compressor output...
Page 28: Fan Motor Ipdu (Mcc-1728)
4-5-3. Fan motor IPDU (MCC-1728) Fan motor output (Lower fan) Fan motor CN750 (White) output (Upper fan) CN700 (Blue) DC280V output CN502 (White) Power supply input and reactor Connecting CN500 (Red) UART UART communication communication CN504 (Blue) CN505 (Red)
Page 29: Noise Filter (Mcc-1733)
4-5-4. Noise filter (MCC-1733) Power supply Power supply Input (L1) output (L1) CN01 (Red) CN21 (Red) Power supply Power supply Input (L2) output (L2) CN22 (White) CN02 (White) Power supply Power supply Input (L3) output (L3) CN03 (Black) CN23 (Black) Power supply output Power supply...
Page 30: Refrigerant Piping Systematic Drawing
Refrigerant piping systematic drawing Outdoor unit Sensor(TO) Heat exchanger (PMV1) Sensor(TE) Strainer 弁Capillary tube Solenoid Valve (SV5) Sensor(TL1) 4-Way valve Check joint Sensor(TS1) Check Valve Check joint Sensor (TS3) Solenoid Valve High pressure Low Pressure (SV4) SensorAG- sensorW L25YLTF-1 High Pressure 弁Capillary tube Muffler...
Page 31 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 (Connector CN316: Black) 1) For returning oil to compressor (Start compensation valve of compressor) Solenoid valve...
Page 32: Control Outline
Control outline Outdoor unit Item Description of operation, numerical data, and other information Remarks 1. Pulse 1) PMV1 control motor valve • During air conditioner operation, the pulse count of the PMV1 (pulse motor valve1) (PMV) is controlled between 100 and 3000. control •...
Page 33 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 34 Item Description of operation, numerical data, and other information Remarks 2. Heating refrigerant (oil) recovery control Refrigerant / During heating operation, this control function is executed to recover liquid refrigerant Oil recovery from indoor units.It is also executed to recover indoor/outdoor refrigerant after defrosting control and to recover oil in outdoor heat exchangers during heating overload operation.
Page 35 Item Description of operation, numerical data, and other information Remarks 1. SV2 gas balance control 8. 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 36 Item Description of operation, numerical data, and other information Remarks 9. 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 37 Item Description of operation, numerical data, and other information Remarks 10. A3-IPDU 2. Heat sink temperature detection control • A3-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 A3-IPDU.
Page 38 <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 39: Applied Control For Outdoor Unit
Applied control for outdoor unit The outdoor fan high static pressure support and 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.
Page 40 (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.) Press the [Menu] button and [▼] button simultaneously and hold for at least 10 seconds.
Page 41: Applied Control Of Outdoor Unit
7-3. Applied control of outdoor unit 7-3-1. Optional P.C. board of outdoor unit installation Placing position Install the optional P.C. boards on top of the interface P.C. board 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 interface P.C.
Page 42 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 43: Power Peak-Cut Control (Standard)
7-3-2. Power peak-cut control (standard) L1: Display lamp ensuring power peak cut control Outdoor unit Locally procured Optional PCB Power Display supply Outdoor unit 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 44: 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 45: Snowfall Fan Control
7-3-4. 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 46: Night Operation (Sound Reduction) Control
7-3-6. 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 47: Operation Mode Selection Control
7-3-7. 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 48: Error / Operation Output
7-3-8. 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 49: 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 50: 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 51 (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 (U1) (U2) (U1)
Page 52 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 53 For Europe, Turkey and Middle East model 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...
Page 54 Capacity rank Capacity code (Equivalent to HP) MMW-*P****LQ* y t i v i t Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8 Unit 9 Unit 10 Unit 11 Unit 12 Unit 13 Unit 14 Unit 15 Unit 16...
Page 55 For China model 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...
Page 56: 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 57: 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 58: 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 59 (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 60 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 61 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 62 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 (Terminator of indoor /...
Page 63 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 64 Press the [▼] or [▲] button to adjust the indoor unit number, and press the [Time] button to confirm. <Pipeline (System) Address> Use the [▼] or [▲] button to set the CODE No. to [12]. Use the [Menu] button to make SET DATA on the left blink instead of CODE No., and press the [▼] or [▲] button to set line address.
Page 65 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 66 To find an indoor unit’s position from its address When checking unit numbers controlled as a group [Menu] [Time] [▼] [▲] [ON/OFF] When the indoor unit is stopped, press the [Menu] button and [▼] button simultaneously and hold for at least 10 seconds. •...
Page 67 Changing the indoor unit address using a remote controller To change an indoor unit address using a wired remote controller. The method to change the address of an individual indoor unit (the indoor unit is paired with a wired remote controller one-to-one), or an indoor unit in a group. (The method is available when the addresses have already been set automatically.) SET DATA [Menu] [Time] [▼]...
Page 68 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 69 Resetting the address (Resetting to the factory default (address undecided)) Method 1 Clearing each address separately using a wired remote controller. Set the line address, indoor unit address and group address to “0099”, using a wired remote controller. (For the setting procedure, refer to the address setting procedures using the wired remote controller on the previous pages.) Method 2 Clearing all the indoor unit addresses on a refrigerate line at once from the outdoor unit.
Page 70 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 71 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 72: 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 Outdoor unit Other refrigerant line Outdoor unit Outdoor unit SW13 SW14...
Page 73: 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 74: 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 75: 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 76: 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 77: 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 78 Wireless remote controller (Except the 4-way Wireless remote controller (Ceiling type and Cassette type,Ceiling type and 1-way Cassette 1-way Cassette SH type) SH type) Procedure Operation content Start Procedure Operation content Push Temporary operation button. Start • The operation mode is the one last selected. Push Temporary operation button.
Page 79 (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 80 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 81 (2) Criteria for operating pressure n i l Indoor temperature (°C) 18~32 15~25 Outdoor temperature (°C) 25~35 5~10 High pressure (MPa) 2.0~3.7 2.5~3.3 Pressure Low pressure (MPa) 0.5~0.9 0.5~0.7 * Criteria after 15 minutes or more has passed since operating started (3) On rotations of outdoor fans Outdoor fans may rotate slowly to control pressure when cooling with low outer air temperature or heating with excessive load.
Page 82: 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 83 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 84: 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 85 (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 86 (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 87 (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 88 (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 89: 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 90 (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 91: 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 92: 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 93 <Operation (PMV4)> [Open fully] Set the switches SW01/SW02/SW03 on the interface P.C. board of the outdoor unit to [2/7/8], and press SW04 for 2 seconds or more. (7-segment display appears as below.) [**][**P] (View PMV opening degree the “****”) “Open fully” of this model … 500P [Open half] Set the switches SW01/SW02/SW03 on the interface P.C.
Page 94: 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 95: 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 96: 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 97: 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 98: 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-ASCU11-C, 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 99: Troubleshooting
Troubleshooting 9-1. Overview (1) Before engaging in troubleshooting (a) Applicable models Indoor units: MM*-AP***, MM*-UP*** Outdoor units: MCY-MHP0706*, MCY-MHP0806*, MCY-MHP0906*, MCY-MHP1006* (b) Tools and measuring devices required • Screwdrivers (Philips, flat head), spanners, long-nose pliers, nipper, pin to push reset switch, torque drivers (Philips), etc.
Page 100: 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 101 (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 102 List of Check Codes (Outdoor Unit) List of Check Codes (Outdoor Unit) IPDU: Intelligent Power Drive Unit (Inverter P.C. board) IPDU: Intelligent Power Drive Unit (Inverter P.C. board) : Lighting, : Lighting, : Flashing, : Flashing, : Goes off : Goes off (Check codes detected by outdoor interface - typical examples) (Check codes detected by outdoor interface - typical examples) ALT: Flashing is alternately when there are two flashing LED...
Page 103 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 Output voltage of high pressure sensor (PD) is zero High pressure sensor (PD) –...
Page 104 (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 105: Troubleshooting Based On Information Displayed On Remote Controller
9-3. Troubleshooting based on information displayed on remote controller Using main remote controller (RBC-ASCU11-C) (1) Checking and testing If the air conditioner fails, the timed shutdown instruction When a trouble occurs to an air conditioner, a check alternately displays the check code and the number of the code and indoor unit No.
Page 106 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 107 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 108 check code Discharge temperature sensor (TD) trouble Operation Timer Ready Heat exchanger temperature sensor (TE) trouble Liquid temperature sensor (TL1, TL3) trouble Outdoor unit temperature sensor Outside air temperature sensor (TO) trouble troubles Alternate blinking Suction temperature sensor (TS1, TS3) trouble Heat sink sensor (TH) trouble Wiring trouble in heat exchanger sensor (TE) and liquid temperature sensor (TL1) Outdoor unit temperature sensor wiring / installation trouble...
Page 109 Other (indications not involving check code) check code Operation Timer Ready – Test run in progress Synchronized blinking Operation Timer Ready Setting incompatibility – (automatic cooling / heating setting for model incapable of it and heating setting for cooling-only model) Alternate blinking...
Page 110: 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 111 Check code Location Check code detection Outdoor 7-segment display Description System status Check items (locations) Main condition(s) remote detection Check Sub-code controller code Remote Duplicated Stop of In two remote controller • Check remote controller controller master remote corresponding configuration (including settings.
Page 112 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 Indoor Indoor TCJ Stop of Sensor resistance is infinity • Check connection of TCJ unit sensor trouble corresponding or zero (open / short circuit).
Page 113 Check code Location Check code detection Outdoor 7-segment display Description System status Check items (locations) Main condition(s) remote detection 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 114 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 IPDU Current All stop Current flow of at least • Check current detection detection circuit specified magnitude is circuit wiring.
Page 115 Check code Location Check code detection Outdoor 7-segment display Description System status Check items (locations) Main condition(s) remote detection Check Sub-code controller code No. of priority Duplicated All stop More than one indoor unit • Check displays on priority indoor units priority indoor have been set up as priority indoor unit and outdoor...
Page 116 Check code Location Check code detection Outdoor 7-segment display Description System status Check items (locations) Main condition(s) remote detection Check Sub-code controller code Indoor Indoor fan motor Stop of • Check the lock of fan motor – – unit trouble corresponding (AC fan).
Page 117 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 • 00: Open phase Detection of All stop • Open phase is detected Check for defect in outdoor detected open phase / when power is turned on.
Page 118 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 01: TS1 All stop Protective shutdown due to • Check for insufficiency in condition leakdetection sustained suction refrigerant quantity.
Page 119 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 0: IGBT IPDU Outdoor fan All stop (Sub code: 0) • Check fan motor. IPDU trouble Fan IPDU over current •...
Page 120 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 121 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 (A3-IPDU). (Be sure to remove all the leads.) (3) Turn on the power supply and start cooling or heating operation.
Page 122: Diagnosis Procedure For Each Check Code
9-5. Diagnosis procedure for each check code...
Page 148: 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 149 (1)Display of system information (displayed on outdoor unit) Refrigerant name Display refrigerant name Refrigerant R410A System capacity A [7]~[10]: 7 to 10 HP [HP] Total capacity of indoor units A [i. No. of indoor units connected / A […0.]~[16.]:0 to 16 (No. of units connected) No.
Page 150 (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 151 (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 152 (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 10 HP : […0.6] to […10] Indoor request command B [ #.
Page 153: Sensor Characteristics
9-7. Sensor characteristics Outdoor Unit Temperature sensor characteristics Outdoor TS1, TS3, TE, TL1, TL3, 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...
Page 154: Indoor Unit
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 155 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 156: 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 157 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 158: Outdoor Unit Parts Replacement Methods
Outdoor unit parts replacement methods Step Component Procedure Remarks Common Upper panel WARNING (Front panels, upper panel) Front panel (upper) Do not detach the inverter for 5 minutes after turning off the breaker as doing so may cause electric shocks. Front panel (lower) CAUTION Wear gloves when working on it.
Page 159 Step Component Procedure Remarks Discharge 1. Detachment cabinet 1) Remove the front panels and upper panel. Discharge [Step.1] cabinet (upper) 2) Remove the screws of the discharge cabinet (upper), top of the heat exchanger plate. (M4×10, 2) (Fig. 2-1) Heat exchanger (upper) screws (2 positions) Discharge cabinet (lower)
Page 160 Step Component Procedure Remarks Discharge 2. Attachment cabinet 1) Mount by reversing the detachment procedure, (continued) attaching the lower and upper discharge cabinets in order. • Insert the hooking tabs into the holes in the motor base and fix each discharge cabinet in place with screws.
Page 161 Step Component Procedure Remarks Side panel 1. Detachment 1) Remove the front panels and upper panel. [Step.1] 2) Remove the screws of the side panel (upper), top of the heat exchanger plate, and side panel Side panel (upper) (lower). (M4×10, 6) (Fig. 3-2) 3) Remove the screws of the side panel (upper) and inverter assembly, and remove the side panel (upper).
Page 162 Step Component Procedure Remarks Partition plate WARNING (upper) Screw replacement (2 positions) Reactor CH-90 Do not detach the inverter for 5 minutes after turning off the breaker as doing so may cause electric shocks. Reactor CH-98 Terminal Partition plate block (upper) 1.
Page 163 Step Component Procedure Remarks Inverter WARNING assembly Fan motor connector Do not detach the inverter for 5 minutes after (2 positions) turning off the breaker as doing so may cause electric shocks. 1. Detachment 1) Remove the front panels, upper panel, discharge cabinets, side panels, and partition plate (upper).
Page 164 Step Component Procedure Remarks Inverter 7) Remove the terminal cover of the compressor, assembly and disconnect the compressor leads from the (continued) compressor. (Fig. 5-5) WARNING If the strap terminal of the compressor lead White line is struck diagonally, it may overheat and cause fire.
Page 165 Step Component Procedure Remarks Interface 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 1) Remove the front panels. [Step.1] Disconnect all the connectors on the Interface PC board.
Page 166 Step Component Procedure Remarks Comp-IPDU WARNING P.C. board Magnetic contactor Do not detach the inverter for 5 minutes after turning off the breaker as doing so may cause PTC thermistor electric shocks. 1. Detachment Banding bands (2 positions) Remove the front panels. [Step.1] Unplug the connector of the sensors, and remove the clamps, etc.
Page 167 Step Component Procedure Remarks Fan IPDU 1. Detachment P.C. board 1) Remove the front panels. [Step.1] Unplug the connector of the sensors, and remove the clamps, etc. [“1)” to “5)” of Step.5] Remove the screws of the inverter cover (A), and remove it.
Page 168 Step Component Procedure Remarks Fan motor Turn the flange nut clockwise to loosen it. WARNING replacement 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 panels, upper panel, and discharge cabinets, and fan motor leads.
Page 169 Step Component Procedure Remarks Compressor 1. Removing the malfunctioning compressor replacement 1) Collect the refrigerant gas with the recovery equipment. Inverter fixing plate (back) 2) Remove the front panels, upper panel, discharge screws (2 positions) cabinets, side panels, partition plate (upper), and inverter assembly.
Page 170 Step Component Procedure Remarks Compressor 12) Burn the connection parts of the SV4 pipe, oil replacement balance pipe (suction pipe side) and discharge (continued) pipe with the burner, and remove. (3 positions) Remove SV4 pipe (Fig. 12-8) CAUTION • Be careful when brazing by the burner to Remove oil balance remove the pipes.
Page 171 Step Component Procedure Remarks Compressor 1. Installation of compressor installation 1) Mount the new compressor and secure with the Suction pipe compressor bolts. (Fig. 13-1) Discharge pipe CAUTION Oil balance pipe The tightening torque of the hexagonal bolt to fix the compressor is 11.0 N·m (110 Kgf·cm). Compressor bolts 2) Braze discharge pipe, suction pipe, and oil (3 positions)
Page 172 Step Component Procedure Remarks Compressor 4. Installation of sound-insulation mat installation 1) Fix the sound insulation mat (inside) around the (continued) compressor. (Fig. 13-2) 2) Fix the sound insulation mat (outside-1) between Partition plate the partition plate and suction pipe. (Fig. 13-2) 3) Fix the sound insulation mat (outside-2) between Suction pipe the valve fixing plate and the sound insulation...
Page 173 Step Component Procedure Remarks PMV1 coil 1. Detachment CN300 PMV4 coil 1) Remove the front panels. (PMV1) [Step.1] CN301 2) Remove the connector connected between the (PMV4) interface P.C. board and PMV coil (PMV1 coil or PMV4 coil). Lead wire clamp CAUTION (1 position)
Page 174 Step Component Procedure Remarks Fan guard 1. Detachment Screws (2 positions) Screws (2 positions) 1) Remove the discharge cabinets. [Step.2] CAUTION For scratch protection, work on a carton box, cloth, or the like. 2) Remove the screws from the discharge cabinet and fan guard knob.
Page 175 Step Component Procedure Remarks Heat 5) Remove the TO sensor holder , TE sensor holder, exchanger and bindng band to fix it. (Fig. 16-3) Header (upper) assembly 6) Remove the pipe fixing rubber (2 positions), (continued) rubber sheet, and the binding bands. (Fig.16-3) Heat exchanger 4-way (Fig.16-4) valve connection piping...
Page 176 Step Component Procedure Remarks Heat 12) Remove the screws of the condenser coupling exchanger plate and heat exchanger assembly. assembly (M4×10,18) (Fig. 16-5)) (continued) 13) Remove the screws of the bottom plate and heat exchanger assembly. (M4×10, 2) (Fig. 16-6) CAUTION •...
Page 177 Step Component Procedure Remarks Handle 1. Detachment (Front panel) 1) Remove the lower part of front panel. [“2)” of Lower part of Step.1] front panel 2) Remove the cushion without tearing it. Cushion (Fig.17-1) 3) Use a flathead screwdriver or something to Reference press on the 3 clamp hooks on the handle and position of...
Page 178: C. Board Exchange Procedures
P.C. board exchange procedures 11-1. Interface P.C. board replacement procedure (MCC-1639:43H69091) 1. Applicable models MCY-MHP0806HT8-(C)(CF)(CV) MCY-MHP0706HS8-ME MCY-MHP0906HT8-(C)(CF)(CV) MCY-MHP0806HS8-ME MCY-MHP1006HT8-(C)(CF)(CV) MCY-MHP0906HS8-ME MCY-MHP0806HS8-(E)(TR) MCY-MHP1006HS8-(E)(TR) 2. Shipped parts list Please make sure that before you do the work, the following parts are shipped all.
Page 179: Comp-Ipdu P.c. Board Replacement Procedure (Mcc-1729:43H69065)
11-2. Comp-IPDU P.C. board replacement procedure (MCC-1729:43H69065) 1. Applicable models MCY-MHP0806HT8-(C)(CF)(CV) MCY-MHP0706HS8-ME MCY-MHP0906HT8-(C)(CF)(CV) MCY-MHP0806HS8-ME MCY-MHP1006HT8-(C)(CF)(CV) MCY-MHP0906HS8-ME MCY-MHP0806HS8-(E)(TR) MCY-MHP1006HS8-(E)(TR) 2. Shipped parts list Please make sure that berore you do the work, the following parts are shipped all. Parts name Quantity P.C.board Replacement Procedure Manual (English 1 page and Chinese1 page A4 paper double side print)
Page 180: Fan Ipdu P.c. Board Replacement Procedure (Mcc-1728:43H69055)
11-3. Fan IPDU P.C. board replacement procedure (MCC-1728:43H69055) 1. Applicable models MCY-MHP0806HT8-(C)(CF)(CV) MCY-MHP0706HS8-ME MCY-MHP0906HT8-(C)(CF)(CV) MCY-MHP0806HS8-ME MCY-MHP1006HT8-(C)(CF)(CV) MCY-MHP0906HS8-ME MCY-MHP0806HS8-(E)(TR) MCY-MHP1006HS8-(E)(TR) 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 4 page A3 paper double side print.）...
Page 181 (3) Disconnect all the screws ② and connectors which are connected to the malfunctioning fan IPDU P.C. board. (Since the connectors may be damaged if they are pulled out by grasping their lead wires, be sure to take hold of the connectors themselves when disconnecting them.) (4) Remove the malfunctioning fan IPDU P.C.
Page 182: Noise Filter P.c. Board Replacement Procedure (Mcc-1733:43H69057)
11-4. Noise filter P.C. board replacement procedure (MCC-1733:43H69057) 1. Applicable models MCY-MHP0806HT8-(C)(CF)(CV) MCY-MHP0706HS8-ME MCY-MHP0906HT8-(C)(CF)(CV) MCY-MHP0806HS8-ME MCY-MHP1006HT8-(C)(CF)(CV) MCY-MHP0906HS8-ME MCY-MHP0806HS8-(E)(TR) MCY-MHP1006HS8-(E)(TR) 2. Shipped parts list Please make sure that berore you do the work, the following parts are shipped all. Parts name Quantity P.C.
Page 183: Exploded Diagram / Parts List
Exploded diagram / parts list 045 018 017 015 012 014 016 019...
Page 184 PANEL, ASSY, SIDE, UP 43H43035 PANEL, ASSY, SIDE, LOWER 43H00020 PANEL, ASSY, TOP 43H19004 GUARD, FAN 43H19014 GUARD, FAN 43H19019 PLATE, STAY 43H07004 GUARD, FIN, SIDE 43H07005 HANDLE 43H15002 MARK, TOSHIBA 43H15004 MARK, TOSHIBA, MiNi-SMMS 43H58004 REACTOR, CH-44 43H46086 COIL, 2WAY HEATSINK...
Page 185: Inverter Assembly
Inverter assembly MCY-MHP0806HT8-C, MCY-MHP0806HT8-CF, MCY-MHP0906HT8-C,MCY-MHP0906HT8-CF MCY-MHP1006HT8-C, MCY-MHP1006HT8-CF, MCY-MHP0806HS8-E MCY-MHP0806HS8-TR, MCY-MHP1006HS8-E, MCY-MHP1006HS8-TR MCY-MHP0806HT8-CV, MCY-MHP0906HT8-CV, MCY-MHP1006HT8-CV PC BOARD ASSY MCC-1639 TK SENSOR TL3 SENSOR TD SENSOR TS SENSOR TO SENSOR HOLDER SENSOR TS3 SENSOR SENSOR HOLDER TE SENSOR TL SENSOR LEAD ASSY,COMPRESSOR SERV-MAG-C0NT SERV-THERMIST0R TERMINAL...
Page 186 Inverter assembly MCY-MHP0706HS8-ME, MCY-MHP0806HS8-ME, MCY-MHP0906HS8-ME PC BOARD ASSY MCC-1639 TL3 SENSOR TK SENSOR TD SENSOR TS SENSOR TO SENSOR HOLDER SENSOR TS3 SENSOR SENSOR HOLDER TE SENSOR TL SENSOR LEAD ASSY,COMPRESSOR SERV-THERMIST0R SERV-MAG-C0NT TERMINAL (3P,AC600V/30A) PC BOARD ASSY MCC-1733 PC BOARD ASSY...
Page 187 709111Q'ty/Set MCY-MHP**** Ref.No. Part No. Description ****HT8-C(CF)(CV) ****HS8-E(TR) ****HS8-ME 0806 0906 1006 0806 1006 0706 0806 0906 43H69091 PC BOARD ASSY,INTERFACE,MCC-1639 43H69057 PC BOARD ASSY,NOISE-FILTER,MCC-1733 43H69065 PC BOARD ASSY,COMP-IPDU,MCC-1729 43H69055 PC BOARD ASSY,FAN-IPDU,MCC-1728 43H50001 HOLDER SENSOR(TO) 43H53001 THERMISTOR,PTC 43H60029 LEAD ASSY,COMPRESSOR 43H60002 TERMINAL,4P(AC600V/75A) 43H60016...
Page 188: Warnings On Refrigerant Leakage
For the amount of charge in this example: 0.3 kg/m The possible amount of leaked refrigerant gas in rooms A, (countermeasures B and C is 10kg. needed) The possible amount of leaked refrigerant gas in rooms D, E and F is 15kg. Total amount of refrigerant Toshiba...
Page 189 This service manual provides relevant explanations about new outdoor unit . Please refer to the following service manuals for each indoor units. Model name SVM File No. <4-way Cassette Type> MMU-UP***1HP-E/-TR (Made in Thailand model) SVM-20095 MMU-UP***1H-E (Made in Japan model) A10-2004 MMU-UP***1HY-C (Made in China model) A10-1911...
Page 190 Model name SVM File No. <Slim Duct Type> MMD-UP***1SPHY-E (Made in China model) A10-2006 MMD-UP***1M(P)HY-C (Made in China model) A10-1909 MMD-UP***1M(P)H-C (Made in Japan model) A10-2001 MMD-UP***1M(P)DY-C (Made in China model) A10-2101 MMD-AP***6M(P)HY-C (Made in China model) A10-1403 MMD-AP***6M(P)H-C (Made in Japan model) A10-1612 MMD-UP****J(P)HY-C (Made in China model) A10-2204...
Page 191 Revision record First issue Revision 1 Changes of indoor unit model and remote controller Jun.2020 Revision 2 New outdoor unit model name add Jul.2021 Revision 3 New indoor units adds Aug.2022 Revision 4 Oct.2022 Connectable indoor units and check items update Revision 5 Company name change May.2024...

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Toshiba MCY-MHP0706HS8-ME Service Manual

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