Toshiba MMK-AP0307HPUL Service Manual
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Toshiba MMK-AP0307HPUL Service Manual

Toshiba MMK-AP0307HPUL Service Manual

Air conditioner mult type
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FILE NO. SVM-21034-3
SERVICE MANUAL
MULT TYPE
<High Wall Types>
MMK-AP0307HPUL
MMK-AP0367HPUL
R410A
Revised on Dec, 2021

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Summary of Contents for Toshiba MMK-AP0307HPUL

  • Page 1 FILE NO. SVM-21034-3 SERVICE MANUAL MULT TYPE <High Wall Types> MMK-AP0307HPUL MMK-AP0367HPUL R410A Revised on Dec, 2021...

  • Page 2: Table Of Contents

    CONTENTS PRECAUTION FOR SAFETY ................NEW REFRIGERANT (R410A) ............... SPECIFICATIONS ..................CONSTRUCTION VIEWS (EXTERNAL VIEWS) ........WIRING DIAGRAM ................... PARTS RATING..................REFRIGERANTING CYCLE DIAGRAM ........... CONTROL OUTLINE ................CONFIGURATION OF CONTROL CIRCUIT ..........APPLIED CONTROL ................TROUBLESHOOTING ................INSTALLATION MANUAL ................ HOW TO REPLACE MAIN PARTS ............
  • Page 3 Toshiba Carrier Corporation or, alternatively, he or she has been instructed in such matters by an individual or individuals who have been trained and is thus Qualified installer thoroughly acquainted with the knowledge related to this work.
  • Page 4 Definition of Protective Gear When the air conditioner is to be transported, installed, maintained, repaired or removed, wear protective gloves and ‘safety’ work clothing. In addition to such normal protective gear, wear the protective gear described below when undertaking the special work detailed in the table below.
  • Page 5 Warning Indications on the Air Conditioner Unit [Confirmation of warning label on the main unit] Confirm that labels are indicated on the specified positions If removing the label during parts replace, stick it as the original. Warning indication Description WARNING WARNING ELECTRICAL SHOCK HAZARD ELECTRICAL SHOCK HAZARD...

  • Page 6: Precaution For Safety

    Precautions for Safety The manufacturer shall not assume any liability for the damage caused by not observing the description of this manual. DANGER Before carrying out the installation, maintenance, repair or removal work, be sure to set the circuit breaker for both the indoor and outdoor units to the OFF position. Otherwise, electric shocks may result.
  • Page 7 WARNING Before starting to repair the air conditioner, read carefully through the Service Manual, and repair the air conditioner by following its instructions. Only qualified service person (∗1) is allowed to repair the air conditioner. Repair of the air conditioner by unqualified person may give rise to a fire, electric shocks, injury, water leaks and/or other problems.
  • Page 8 When any of the electrical parts are to be replaced, ensure that the replacement parts satisfy the specifications given in the Service Manual (or use the parts contained on the parts list in the Service Manual). Use of any parts which do not satisfy the required specifications may give rise to electric shocks, Use specified smoking and/ or a fire.
  • Page 9 When the refrigerant gas leaks during work, execute ventilation. If the refrigerant gas touches to a fire, poisonous gas generates. A case of leakage of the refrigerant and the closed room full with gas is dangerous because a shortage Ventilation of oxygen occurs.
  • Page 10 Only a qualified installer (∗1) or qualified service person (*1) is allowed to install the air conditioner. If the air conditioner is installed by an unqualified individual, a fire, electric shocks, injury, water leakage, noise and/or vibration may result. Before starting to install the air conditioner, read carefully through the Installation Manual, and follow its instructions to install the air conditioner.

  • Page 11: 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 12 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 13: Specifications

    1. SPECIFICATIONS High wall type Model name MMK-AP0307HPUL MMK-AP0367HPUL 8.80 10.60 (kW) Cooling Capacity (Btu/h) 30000 36000 10.00 11.70 (kW) Heating Capacity (Btu/h) 34000 40000 1Ph. (208V-230V) ~ 60Hz. Power supply Running current 0.53 0.58 Electrical characteristics Power consumption 0.058 0.066...

  • Page 14: Construction Views (External Views)

    2. CONSTRUCTION VIEWS (EXTERNAL VIEWS) - 14 -...

  • Page 15: Wiring Diagram

    3. WIRING DIAGRAM - 15 -...

  • Page 16: Parts Rating

    4. PARTS RATING 4-1. Parts Rating Parts Name Type Specications Output (Rated) 61W, 280V DC Fan motor (for indoor) ICF-280-61-2 4 phase, DC 12V Louver motor MP24Z4N 10kΩ at 77°F (25°C) 518mm Thermo. Sensor (TA sensor) 10kΩ at 77°F (25°C) Ø6, 450mm Heat exchanger sensor (TC sensor) 10kΩ...

  • Page 17: Refrigeranting Cycle Diagram

    5. REFRIGERANTING CYCLE DIAGRAM Liquid side Gas side Strainer Capillary tube Air heat exchanger at indoor side Pulse Motor Valve (PMV) Distributor Sensor (TCJ) Sensor (TC2) Sensor (TC1) Sensor Fan motor (TA) Functional part name Functional outline Pulse Motor Valve (Connector CN82 (6P): Blue) 1) Controls super heat in cooling operation 2) Controls under cool in heating operation...

  • Page 18: Control Outline

    6. CONTROL OUTLINE 6-1. Indoor Unit Control Specifications Item Outline of specifications Remarks Power supply (1) Distinction of outdoor unit • Judgment of outdoor unit is reset. When the power supply is reset, the outdoor units are • Exchange of cooling-only distinguished, and control is exchanged according to the unit distinctive results.
  • Page 19 Item Outline of specifications Remarks (1) In heating operation, the upper limit of the fan tap is set by Prevention of one with higher temperature of TC2 sensor and TCJ cold air sensor. discharge • In D and E zones, priority •...
  • Page 20 Item Outline of specifications Remarks Cooling oil While the outdoor unit is recovering cooling oil (refrigerant), the • Recovery operation (refrigerant) indoor units perform the following control tasks: normally takes place recovery control [common for operational (cooling thermo ON/thermo OFF/FAN), roughly every 2 hours.
  • Page 21 Item Outline of specifications Remarks Filter sign display (1) The operation time of the indoor fan is integrated and (None in wireless type) stored in memory, and the filter exchange signal is sent to the remote controller to display on the remote controller LCD after the specified time.
  • Page 22 Item Outline of specifications Remarks Hi POWER When you press the Hi POWER button during cooling, operation heating or A operation, the air conditioner will start the (Wireless remote following operation. control specific • Cooling operation operations) Performs the cooling operation at 2.0F°(1°C) lower than the setting temperature.
  • Page 23 Item Outline of specifications Remarks PRESET operation To operate the air conditioner with the setting memorized. (Wireless remote control specific (1) Press the PRESET button. The setting memorized operation) will be indicated and the air conditioner operates with regards to the setting. •...

  • Page 24: Configuration Of Control Circuit

    7. CONFIGURATION OF CONTROL CIRCUIT 7-1. Indoor Controller block diagram (MCC-1696) 7-1-1. Connection of wired remote controller Wired header remote controller (Up to 2 link) Schedule timer (weekly timer mode) Display Display LCD Function setup LCD driver Key switch Display LED Function setup Key switch DC5V...
  • Page 25 7-1-2. Connection of Wireless Remote Controller Central control remote controller (Sold separately) Follower unit Indoor unit #1 Header unit Indoor control P.C. board (MCC-1696) Central control communication circuit DC20V Remote controller communication circuit DC12V EEPROM Receiver and Display P.C. board DC5V TA sensor (WP-033)
  • Page 26 7-2. Indoor P.C. Board MCC-1696 - 26 -...
  • Page 27 Wall-Type P.C. Board Optional Switch/Connector Specifications Connector Function Specifications Remarks OFF: No terminator resistor, Setup at shipment OFF: No terminator resistor. Terminator resistor Bit 1 ON: Terminator resistor provided Only 1 unit is ON during central control by custom only. provided/Not provided SW01 OFF: Remote controller A...
  • Page 28 7-3. Functions at test run Cooling/Heating test run check The test run for cooling/heating can be performed from either indoor remote controller or outdoor interface P.C. board. 1. Start/Finish operation of test run Test run from indoor remote controller Wired remote controller: Refer to the below item of “Test run” of the wired remote controller. Wireless remote controller: Refer to the next page item of “Test run”...
  • Page 29 <RBC-AMS5*E-UL> Push the [ MENU] button to display the menu screen. Field setting menu(1/2) 1.Test mode Push and hold the [ MENU] button 2.Register service info. 3.Alarm history and the [ ] button at the same time 4.Monitor function 5.Setting louver position to display the “Field setting menu”.
  • Page 30 Push the [ ON / OFF] button to start Room A 12:00 the test mode. The screen (1) shown in the left appears. (The screen (2) appears when the operation is stopped.) Test → Perform the test mode in the “Cool” or “Heat” mode.
  • Page 31 In case of wireless remote controller REQUIREMENT 1. For the operation procedure, be sure to follow the matter. 2. Finish the forced cooling operation in a short time because it applies excessive strength to the air condi- tioner. 3. A test operation of forced heating is unavailable. Perform a test operation by heating operation using the switches of the remote controller.
  • Page 32 Check function for operation of indoor unit (Functions at indoor unit side) This function is provided to check the operation of the indoor unit singly without communication with the remote controller or the outdoor unit. This function can be used regardless of operation or stop of the system. However, if using this function for a long time, a trouble of the equipment may be caused.

  • Page 33: Applied Control

    8. APPLIED CONTROL 8-1. Setup of Selecting Function in Indoor Unit (Be Sure to Execute Setup by a Wired Remote Controller) <Procedure> Execute the setup operation while the unit stops. TEMP. ON / OFF TIMER SET MODE TIME SAVE VENT FILTER RESET TEST...
  • Page 34 <RBC-AMS5*E-UL> Push the [ MENU] button to display the menu screen. Field setting menu(2/2) Push and hold the [ MENU] button and the 6. Setting timer operation mode 7. DN setting ] button at the same time to display the 8.
  • Page 35 Table: Function selecting item numbers (DN) (Items necessary to perform the applied control at the local site are described.) CODE No. Item Description At shipment [DN] Filter display delay timer 0000 : None 0002 : 2500H 0001 : 150H 0002 : 2500H 0003 : 5000H 0004 : 10000H Dirty state of filter...
  • Page 36 CODE No. Item Description At shipment [DN] Timer setup 0000 : Available (Operable) 0000 : Available (Wired remote controller) 0001 : Unavailable (Operation prohibited) Change unit +0.9°F(0.5°C) or 0000 : +0.9°F(0.5°C) 0001 : 1.8°F(1.0°C) 0000 : +0.9°F(0.5°C) +1.8°F(1.0°C) on remote Region 0000 : Japan model 0001 : North America...
  • Page 37 8-2. Applied Control in Indoor Unit Remote location ON/OFF control box (TCB-IFCB-4UL) [Wiring and setup] • Use the exclusive connector for connection with the indoor control P.C. board. • In a group control, the system can operate when connecting with any indoor unit (Control P.C. board) in the group.
  • Page 38 Ventilating fan control from wired remote controller [Function] • The start/stop operation can be operated from the wired remote controller when air to air heat exchanger or ventilating fan is installed in the system. • The fan can be operated even if the indoor unit is not operating. •...
  • Page 39 Leaving-ON prevention control (with Wired remote controller) [Function] • This function controls the indoor units individually. It is connected with cable to the control P.C. board of the indoor unit. • In a group control, it is connected with cable to the indoor unit (Control P.C. board), and the CODE No. is set to the connected indoor unit.
  • Page 40 Address setup (Manual setting from Wired remote controller) <RBC-AMT***> In case that addresses of the indoor units will be determined prior to piping work after wiring work (Example of 2-lines cabling) (Real line: Cabling, Broken line: Refrigerant pipe) • Set an indoor unit per a remote controller. •...
  • Page 41 <RBC-AMS5*E-UL> Push the [ MENU] button to display the menu screen. Push and hold the [ MENU] button and the [ ] button at the same time to display the “Field setting menu”. → Push and hold the buttons for more than 4 seconds.
  • Page 42 Confirmation of indoor unit No. position <RBC-AMT***> 1. To know the indoor unit addresses though position of the indoor unit is recognized • In case of individual operation (Wired remote controller : indoor unit = 1 : 1) (Follow to the procedure during operation) <Procedure>...
  • Page 43 <RBC-AMS5*E-UL> Field setting menu(2/2) The position of indoor unit body by address Setting timer operation mode Setting timer operation mode DN setting DN setting Push the [ MENU] button to display Reset power consumption data the menu screen. Push and hold the [ MENU] button Return and the [...
  • Page 44 Function selection setup <Procedure> Perform setting while the air conditioner stops. Push buttons simultaneously for 4 seconds or more. TEST The first displayed unit No. is the header indoor unit address in the group control. In this time, fan and louver of the selected indoor unit operate. UNIT LOUVER Every pushing button (button at left side), the indoor unit No.
  • Page 45 How to check all the unit No. from an arbitrary wired remote controller <Procedure> Carry out this procedure during stop of system. The indoor unit No. and the position in the identical refrigerant piping can be checked. An outdoor unit is selected, the identical refrigerant piping and the indoor unit No. are displayed one after the other, and then its fan and louver are on.
  • Page 46 How to change all indoor addresses from an arbitrary wired remote controller (It is possible when setting has finished by automatic addresses.) Contents: The indoor unit addresses in each identical refrigerant piping line can be changed from an arbitrary wired remote controller. Enter in address check/change mode and then change the address.
  • Page 47 Function to clear error 1. Clearing method from remote controller How to clear error of outdoor unit In the unit of refrigerant line connected by indoor unit of the remote controller to be operated, the error of the outdoor unit currently detected is cleared. (Error of the indoor unit is not cleared.) The service monitor function of the remote controller is utilized.
  • Page 48 Monitoring function of remote controller switch When using the remote controller (Model Name: RBC-AMT32UL), the following monitoring function can be utilized. Calling of display <Contents> The temperature of each sensor of the remote controller, indoor unit and outdoor unit and the operating status can be checked by calling the service monitor mode from the remote controller.
  • Page 49 < Based on the SMMS-e > CODE No. Data name Display format Unit Remote control display example Room temperature (Use to control) ×1 °C [0027] = 27 °C Room temperature (Remote control) ×1 °C Indoor suction air temperature (TA) ×1 °F Indoor coil temperature (TCJ) ×1...

  • Page 50: Troubleshooting

    9. TROUBLESHOOTING 9-1. Troubleshooting Summary 1. Before troubleshooting 1) Applied models S-MMS Multi type models Indoor unit : MMX-APXXX, Outdoor unit : MMY-MAPXXXXHT6P-UL, MMY-MAPXXXXHT9P-UL Super Heat Recovery Multi type models Indoor unit : MMX-APXXX, Outdoor unit : MMY-MAPXXXXFT2P-UL, MMY-MAPXXXXFT6P-UL, MMY-MAPXXXXFT9P-UL Mini-S-MMS Multi type models Indoor unit : MMX-APXXX,...
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  • Page 57 9-3. Troubleshooting by Check Display on Wired Remote Controller In case of wired remote controller (RBC-AMT32UL) 1. Confirmation and check When an error occurred on the air conditioner, the check code and the indoor unit No. are displayed on the display section of the remote controller.
  • Page 58 In case of wired remote controller <RBC-AMS*E-UL> <RBC-AMS5*E-UL> Check code When a trouble has occurred in the air conditioner, the Code : P10 Unit : 2–2 check code and the unit number of the indoor unit appear Unit number of the on the display of the remote controller.
  • Page 59 Indoor unit display part (Receiving unit) (Wireless type) When specifying the check code, check 7-segment display on the center unit. For the check code which is not displayed on the outdoor 7-segment, confirm it in Section “9-2 How to Check / Check code display list (Indoor unit)”. : Goes off, : Goes on, : Flash (0.5 second)
  • Page 60 Lamp indication Check code Cause of trouble occurrence Operation Timer Ready Heat exchanger sensor (TCJ) error ⎫ ⎪ Heat exchanger sensor (TC2) error ⎪ ⎪ Heat exchanger sensor (TC1) error Temp. sensor error in indoor unit ⎬ ⎪ Alternate flash Room temp.
  • Page 61 Others (Except check code) Lamp indication Check code Cause of trouble occurrence Operation Timer Ready — During test run Simultaneous flash Operation Timer Ready COOL/HEAT disagreement — (Automatic cooling/heating setup to automatic cooling/heating unavailable model, heating setup to cooling only model) Alternate flash - 61 -...
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  • Page 73 9-5. Sensor Characteristics Indoor Unit Temperature sensor characteristics Indoor TA sensor Temperature [˚F(˚C)] Resistance [kΩ] 32˚F(0˚C) 33.9 Resistance 41˚F(5˚C) 26.1 [kΩ] 50˚F(10˚C) 20.3 59˚F(15˚C) 15.9 68˚F(20˚C) 12.6 77˚F(25˚C) 10.0 86˚F(30˚C) 95˚F(35˚C) 104˚F(40˚C) 113˚F(45˚C) 122˚F(50˚C) 131˚F(55˚C) 140˚F(60˚C) 32˚F 50˚F 68˚F 86˚F 104˚F 122˚F 140˚F...

  • Page 74: Installation Manual

    10. INSTALLATION MANUAL Please read this Installation Manual carefully before installing the Air Conditioner. • This Manual describes the installation method of the indoor unit. • For installation of the outdoor unit, follow the Installation Manual attached to the outdoor unit. ADOPTION OF NEW REFRIGERANT This Air Conditioner uses R410A an environmentally friendly refrigerant.
  • Page 75 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 76 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 could lead to injury, burns, electric shocks and other injuries.
  • Page 77 Warning indications on the air conditioner unit Warning indication Description WARNING WARNING ELECTRICAL SHOCK HAZARD ELECTRICAL SHOCK HAZARD Disconnect all remote electric power supplies Disconnect all remote electric power supplies before servicing. before servicing. WARNING WARNING Moving parts. Moving parts. Do not operate unit with grille Do not operate unit with grille removed.

  • Page 78: Precautions For Safety

    PRECAUTIONS FOR SAFETY • Ensure that all Local, National and International regulations are satisfied. • Read this “PRECAUTIONS FOR SAFETY” carefully before Installation. • The precautions described below include the important items regarding safety. Observe them without fail. • After the installation work, perform a trial operation (test run) to check for any problem.
  • Page 79 • When work is performed at heights, use a ladder which complies with the ISO 14122 standard, and follow the procedure in the ladder’s instructions. Also wear a helmet for use in industry as protective gear to undertake the work. •...
  • Page 80 • If refrigerant gas has leaked during the installation work, ventilate the room immediately. If the leaked refrigerant gas comes in contact with fire, noxious gas may generate. • Use forklift to carry in the air conditioner units and use winch or hoist at installation of them.
  • Page 81 • Install a circuit breaker that meets the specifications in the installation manual and the stipulations in the local regulations and laws. • Install the circuit breaker where it can be easily accessed by the agent. • When installing the circuit breaker outdoors, install one which is designed to be used outdoors.
  • Page 82 Relocation • Only a qualified installer(*1) or qualified service person(*1) is allowed to relocate the air conditioner. It is dangerous for the air conditioner to be relocated by an unqualified individual since a fire, electric shocks, injury, water leakage, noise and/or vibration may result. •...

  • Page 83: Accessory Parts

    ACCESSORY PARTS Part name Q’ty Shape Usage Installation Manual This manual (Hand over to customers) Owner’s Manual (Hand over to customers) Installation plate Wireless remote controller Battery Remote controller holder Mounting screw Ø5/32″ (4 mm) × 1.0″ (25 mm) Flat head wood screw Ø1/8″...

  • Page 84: Selection Of Installation Place

    SELECTION OF INSTALLATION PLACE WARNING • Install the air conditioner at enough strong place to withstand the weight of the unit. If the strength is not enough, the unit may fall down resulting in injury. CAUTION • Do not install the air conditioner in a location subject to a risk of exposure to a combustible gas.
  • Page 85 Installation diagram of Indoor units For the rear left, bottom left and left piping Packing material Wall Split Hook Installation plate SPACER Hook Split out 2 pieces of SPACER from indoor unit packing material, insert between the indoor unit and wall to tilt the indoor unit for better operation.

  • Page 86: Installation Of Indoor Unit

    Wireless remote controller • A place where there are no obstacles such as a curtain that may block the signal from the indoor unit. • Do not install the remote controller in a place exposed to direct sunlight or close to a heating source, such as a stove.
  • Page 87 Installation of eletrical cover 2 holes type REQUIREMENT In case of group control, electrical cover 1 hole type need to change to electrical cover 2 holes type. ● Step to remove the electrical cover 1 hole. 1) The electical cover 1 hole can be removed by removing the screw securing the electical cover 1 hole and them pulling out the electical cover 1 hole.

  • Page 88: Cutting A Hole And Mounting Installation Plate

    CUTTING A HOLE AND MOUNTING INSTALLATION PLATE Cutting a hole When the installation plate is directly mounted on the wall In case of installing the refrigerant pipes from the rear: 1. Securely fit the installation plate onto the 1. Decide the hole position for piping at wall by screwing it in the upper and lower 4.3″...

  • Page 89: Piping And Drain Hose Installation

    PIPING AND DRAIN HOSE INSTALLATION Piping and drain hose forming * Since dewing results in a machine trouble, make sure to insulate both connecting pipes. (Use polyethylene foam as insulating material.) Rear right Rear left Bottom left Left Bottom right Right 1.
  • Page 90 How to remove the drains cap Clip the drain cap by needle-nose pliers and pull out. Drain cap How to fix the drains cap 1) Insert hexagonal wrench (dia. 0.16″ (4 mm)) in a centre head. Drain cap 2) Firmly insert drains cap. Do not apply lubricating oil (refrigerant machine oil) when inserting the drain cap.
  • Page 91 In case of bottom right or bottom left piping • After scribing slits of the front panel with a knife or a marking-off pin, cut them with a pair of nippers or an equivalent tool. Slit Left-hand connection with piping Bend the connecting pipe so that it is laid within 1.7″...

  • Page 92: Indoor Unit Fixing

    INDOOR UNIT FIXING DRAINAGE 1. Pass the pipe through the hole in the wall, 1. Run the drain hose sloped downwards. and hook the indoor unit on the installation NOTE plate at the upper hooks. 2. Swing the indoor unit to right and left to •...

  • Page 93: Refrigerant Piping

    REFRIGERANT PIPING Permissible Piping Length and Refrigerant Piping Height Difference 1. Use copper pipe with 0.03″ (0.8 mm) or more thickness. (In case pipe size is dia. They vary according to the outdoor unit. 5/8″ (15.9), with 0.04″ (1.0 mm) or more.) For details, refer to the Installation Manual attached 2.
  • Page 94 * In case of flaring for R410A with the Piping with outdoor unit conventional flare tool, pull it out • Shape of valve differs according to the outdoor approx. 0.02″ (0.5 mm) more than unit. that for R22 to adjust to the specified For details of installation, refer to the Installation flare size.

  • Page 95: Electrical Connection

    ELECTRICAL CONNECTION WARNING Power supply wire and control wires specifications 1. Use predefined wire and connect them Power supply wire and control wires are locally certainly. Keep the connecting terminal procured. freefrom external force. For the power supply specifications, follow to the Improper wire connection or clamping may table below.
  • Page 96 Up to 164′1″ (50 m) Ground 1 × AWG12 or thicker Electric characteristics  Voltage Range (V) MOCP Model Power Supply MMK-AP0307HPUL 0.83 208/230V-1-60Hz MMK-AP0367HPUL 0.83 Control wire Control wiring between indoor units, and outdoor unit (Up to 3280′10″ (1000 m)) AWG16 Wire size (2-core shielded wire) (Up to 6561′8″...
  • Page 97 NOTE An outdoor unit connected with control wiring between indoor and outdoor units wire becomes automatically the header unit. Wiring example Outdoor Power supply Outdoor Power supply Circuit breaker Circuit breaker Header outdoor unit Follower outdoor unit Ground Ground U1 U2 U3 U4 U5 U6 L1 L2 L3 N L1 L2 L3 N U1 U2 U3 U4 U5 U6...
  • Page 98 Wiring Connection Power supply terminal block How to connect the power supply wiring Terminal block for communication/remote and control wiring controller wiring The power supply wire and the control wire can be Screw connected without removing the front panel. REQUIREMENT Terminal cover Earth screw Connect the power supply wire after connecting...
  • Page 99 Wiring connection for flow selector unit How to connect the wiring of flow selector unit Connect the power supply wire and the communication wire supplied with the flow selector unit to the indoor unit. 1. Remove the air inlet grille. Open the air inlet grille upward and pull it toward you.

  • Page 100: Applicable Controls

    APPLICABLE CONTROLS A wired remote controller is necessary for this function. This function cannot be operate with a wireless remote controller. Changing of settings of for REQUIREMENT applicable controls • When you use this air conditioner for the first time, it takes approx. 5 minutes until the remote Basic procedure for changing settings controller becomes available after power-on.
  • Page 101 Change of lighting time of filter Procedure sign Each time you push button, indoor unit numbers in the control group change cyclically. According to the installation condition, the lighting Select the indoor unit you want to change settings time of the filter sign (Notification of filter cleaning) for.
  • Page 102 Adjustment of air direction 1. Using the remote controller switch, change the up/down air direction by moving the horizontal louver. 2. Adjust the right/left air direction by bending the vertical grille inside of the air outlet port with hands. REQUIREMENT Do not touch the horizontal louver directly with hands;...

  • Page 103: Test Run

    TEST RUN A wired remote controller is necessary for this function. This function cannot be operate with a wireless remote controller. Before test run In case of wired remote controller • Before turning on the power supply, carry out the following procedure.
  • Page 104 In case of wireless remote controller (Forced test operation is performed in a different way.) REQUIREMENT • For the operation procedure, be sure to follow the Owner’s Manual. • Finish the forced cooling operation in a short time because it applies excessive strength to the air conditioner.

  • Page 105: Troubleshooting

    TROUBLESHOOTING A wired remote controller is necessary for this function. This function cannot be operate with a wireless remote controller. Confirmation and check Procedure Every pushing of “TEMP.” button used to When a trouble occurred in the air conditioner, the set temperature, the trouble history stored in check code and the indoor UNIT No.
  • Page 106 Check method On the remote controller (Wired remote controller, Central control remote controller) and the interface P.C. board of the outdoor unit (I/F), a check display LCD (Remote controller) or 7-segment display (on the outdoor interface P.C. board) to display the operation is provided. Therefore the operation status can be known.
  • Page 107 Check code Wireless remote controller Wired Sensor block display of Judging Outdoor unit 7-segment display Check code name remote receiving unit device controller Auxiliary code Operation Timer Ready Flash display 01: Outdoor unit of other line connected Other line connected during automatic 02: Indoor unit of other line address connected...
  • Page 108 Check code Wireless remote controller Wired Sensor block display of Judging Outdoor unit 7-segment display Check code name remote receiving unit device controller Auxiliary code Operation Timer Ready Flash display 01: TK1 sensor trouble 02: TK2 sensor trouble 03: TK3 sensor trouble Oil level detective temp.
  • Page 109 Check code Wireless remote controller Wired Sensor block display of Judging Outdoor unit 7-segment display Check code name remote receiving unit device controller Auxiliary code Operation Timer Ready Flash display #0: Element short circuit #E: Vdc voltage trouble #1: Position detection circuit trouble #2: Input current sensor trouble #3: Motor lock trouble #C: Sensor temperature trouble...
  • Page 110 WARNINGS ON REFRIGERANT LEAKAGE Check of Concentration Limit NOTE 2 The standards for minimum room volume are as The room in which the air conditioner is to be follows. installed requires a design that in the event of (1) No partition (shaded portion) refrigerant gas leaking out, its concentration will not exceed a set limit.
  • Page 111 CONFIRMATION OF INDOOR UNIT SETUP Prior to delivery to the customer, check the address and setup of the indoor unit, which has been installed in this time and fill the check sheet (Table below). Data of four units can be entered in this check sheet. Copy this sheet according to the No.

  • Page 112: How To Replace Main Parts

    11. HOW TO REPLACE THE MAIN PARTS WARNING • Since high voltages pass through the electrical parts, turn off the power without fail before proceeding with the repairs. Electric shocks may occur if the power plug is not disconnected. • After the repairs have been completed (after the front panel and cabinet have been installed), perform a test run, and check for smoking, unusual sounds and other abnormalities.
  • Page 113 Part name Procedures Remarks Front panel 1) Follow to the procedure in the item 2) Securely remove screws (3 pcs.) at the front panel. 3) Open 4 screw caps and securely remove [How to open screw cap] screws (4 pcs.) at the front panel. Step 1) Push up screw cap Screw cap Step 2) Lower screw cap...
  • Page 114 Part name Procedures Remarks Electric part 1) Follow the procedure item 3 . box assembly 2) Remove screw holding the electric part cover then remove fixing screw of base camp and remove it. TA sensor Connectors Fan motor connector Louver motor Base clamp Earth line connector...
  • Page 115 Part name Procedures Remarks Horizontal louver 1) Remove shaft of the horizontal louver Drain pan from the drain pan. (First remove 2 the Bend and center shafts then remove the other shafts.) remove Horizontal louver (Back) Horizontal louver (Front) 1) Follow the procedure item 3 . Drain hose 2) The drain hose can be removed by removing Drain pan...
  • Page 116 Part name Procedures Remarks 1) Follow to the procedure in the item ③ Drain pan Middle connector Unit display assembly 2) Remove screw holding the electric part cover. 3) Remove fixing screws of the unit display and remove unit display. 4) Disconnect the middle connector of louver motor code (5P) 5) Remove 2 fixing screws from the drain pan...
  • Page 117 Part name Procedures Remarks Vertical louver 1) Follow the procedure item 3 and 7 . assembly 2) Remove fixing screw from the vertical louver set then remove them from the body back. Vertical louver set Screw Fan motor Follow the procedure item 3 , 7 and 8 . Loosen the set screw of the cross flow fan.
  • Page 118 Part name Procedures Remarks Follow the procedure item 3 , 7 and 8 . Cross flow fan Heat exchanger Loosen the set screw of the cross flow fan. (Refer to the 9 for how to remove set screw.) Remove 4 fixing screws from the bearing base then remove it from the main unit.
  • Page 119 Part name Procedures Remarks Heat exchanger Follow the procedure item ③ and ④. Heat exchanger (Evaporator) Remove 4 fixing screws at the left side of the heat exchanger. Screw Heat exchanger Remove 3 fixing screw at the upper right side of the heat exchanger.
  • Page 120 Microcomputer Part name Procedure Remarks Common procedure Replace terminal block,  Perform procedure item ③ and ④of Indoor microcomputer ass’y and the Unit. P.C. board ass’y. - 120 -...

  • Page 121: Replacement Of P.c. Board For Indoor Unit Servicing

    12. Replacement of P.C. Board for Indoor Unit Servicing <Models> MMK-AP****HPUL Series <Note : when replacing the P.C. board for indoor unit servicing> The nonvolatile memory (hereafter called EEPROM, IC503) on the indoor unit P.C. board before replacement includes the model specific type information and capacity codes as the factory-set value and the important setting data which have been automatically or manually set when the indoor unit is installed, such as system/indoor/group addresses, high ceiling select setting, etc.
  • Page 122 TEST Step 3 After writing down all setting data, press button to return to the normal stop status. (It takes approx. 1 min until the remote control operation is available again.) CODE No.required at least The CODE No. for the Indoor unit type and Indoor unit capacity Contents are required to set the rotation number setting of the fan.
  • Page 123 UNIT LOUVER Step 2 button is pressed, the indoor unit Nos. in the group control operation are displayed in Every time when the order. (The settings stored in the EEPROM of the P.C. board for indoor unit servicing are the factory-set values.) Specify the indoor unit No.with its P.C.
  • Page 124 Table 1.Setting data(CODE No. table(example)) Factory-set value Item Setting data Filter display delay timer 0002 : 2500H Dirty state of filter 0000 : Standard Central control address 00Un/0099 : Unfixed Specific indoor unit priority 0000 : No priority Heating suction temperature shift Automatic mode 0001 : No automatic Cooling only...

  • Page 125: Exploded Views And Parts List

    13. EXPLODED VIEWS AND PARTS LIST Indoor Unit Accessory part ELECTRICAL PARTS ASSEMBLY Location Part Location Part Q'ty Q'ty Description Description 43T00842 FRONT PANEL ASSY 43T49043 HOLDER, PIPE 43T00771 CAP SCREW ASSY 43T49382 PIPE FIXTURE 43T09606 GRILLE OF AIR INLET ASSY 43T82345 PLATE, INSTALLATION ASSY 43T80356...
  • Page 126 Indoor Unit (Part-E) MCC-1696 SW02 CN60 CN213 CN61 SW01 CN50 CN32 CN81 Location Part Location Part Q'ty Q'ty Description Description 43TN9352 PC BOARD ASSY 43T60548 ASM-HOUSING(PW) 43T60448 TERMINAL 43T60546 ASM-HOSING(BUS) 43T60078 TERMIMAL BLOCK 43T60545 ASM-HOUSING(REM) 43T50391 SENSOR; THERMOSTAT 43T60539 ASM-HOUSING(MOV) 43T50410 TC-SENSOR 43T6V932...
  • Page 127 144/9 MOO 5, BANGKADI INDUSTRIAL PARK, TIVANON ROAD, TAMBOL BANGKADI, AMPHUR MUANG, PATHUMTHANI 12000, THAILAND.

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