Toshiba MiNi-SMMS MCY-MAP0501HT Service Manual
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Toshiba MiNi-SMMS MCY-MAP0501HT Service Manual

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See also: Owner's Manual , Installation Manual
FILE NO. A05-015

SERVICE MANUAL

Mini- SUPER MODULAR MULTI SYSTEM AIR CONDITIONER
[Inverter Unit]
MCY-MAP0401HT
MCY-MAP0501HT
MCY-MAP0601HT
MCY-MAP0401HT2D
MCY-MAP0501HT2D
MCY-MAP0601HT2D
RBM-PMV0361E
RBM-PMV0901E
PRINTED IN JAPAN, Mar.,2006 ToMo

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Summary of Contents for Toshiba MiNi-SMMS MCY-MAP0501HT

  • Page 1: Service Manual

    FILE NO. A05-015 SERVICE MANUAL Mini- SUPER MODULAR MULTI SYSTEM AIR CONDITIONER Outdoor Unit [Inverter Unit] MCY-MAP0401HT MCY-MAP0501HT MCY-MAP0601HT MCY-MAP0401HT2D MCY-MAP0501HT2D MCY-MAP0601HT2D PMV Kit RBM-PMV0361E RBM-PMV0901E PRINTED IN JAPAN, Mar.,2006 ToMo...
  • Page 2 WARNINGS ON REFRIGERANT LEAKAGE Important Check of Concentration Limit NOTE 2 : The room in which the air conditioner is to be installed requires a design that in the event of The standards for minimum room volume are as follows. refrigerant gas leaking out, its concentration will not (1) No partition (shaded portion) exceed a set limit.

  • Page 3: Table Of Contents

    CONTENTS SAFETY CAUTION .................... 4 1. DESIGN METHODS ................10 2. WIRING DIAGRAM ................. 18 3. PARTS RATING ..................33 4. REFRIGERANT PIPING SYSTEMATIC DRAWING ....... 51 5. SWITCH (SW08) SET UP OF THE OUTDOOR UNIT ......54 6. CONTROL OUTLINE ................55 7.

  • Page 4: Safety Caution

    SAFETY CAUTION The important contents concerned to the safety are described on the product itself and on this Service Manual. Please read this Service Manual after understanding the described items thoroughly in the following contents (Indications/Illustrated marks), and keep them. [Explanation of indications] Indication Explanation...
  • Page 5 WARNING Before troubleshooting or repair work, check the earth wire is connected to the earth terminals of the main unit, otherwise an electric shock is caused when a leak occurs. If the earth wire is not correctly connected, contact an electric engineer for rework. Check earth wires.
  • Page 6 WARNING After the work has finished, be sure to use an insulation tester set (500V mugger) to check the resistance is 2MΩ Ω Ω Ω Ω or more between the charge section and the non-charge metal section (Earth position). If the resistance value is low, a disaster such as a leak or electric shock is caused at user’s Insulator check side.
  • Page 7 • New Refrigerant (R410A) 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. Therefore, be sure that water, dust, the former refrigerant or the former refrigerating oil is not mixed into the refrigerating cycle of the air conditioner with new refrigerant during installation work or service work.
  • Page 8 4. Tools (1) Required Tools for R410A Mixing of different types of oil may cause 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 9 5. Recharge of Refrigerant When recharge of the refrigerant is required, charge the new refrigerant with the specified amount in the procedure as described below. Recover the refrigerant and check there is no refrigerant in the equipment. Leave it as it is for 1 to 2 minutes and check the indicator of the compound gauge does not return.

  • Page 10: Design Methods

    1. DESIGN METHODS 1-1. System Overview 1-1-1. Outdoor Units Inverter unit Corresponding HP Heat pump (50Hz) MCY-MAP0401HT MCY-MAP0501HT MCY-MAP0601HT Model name Heat pump (60Hz) MCY-MAP0401HT2D MCY-MAP0501HT2D MCY-MAP0601HT2D Cooling capacity (kW) ∗1 12.1 14.0 15.5 Heating capacity (kW) ∗1 12.5 16.0 18.0...

  • Page 11: Table Of Contents

    1-1-2. Indoor Units Capacity Capacity Cooling Heating Type Appearance Model name PMV Kit rank code capacity (kW) capacity (kW) MMU-AP0091H 009 type 1.00 —— MMU-AP0121H 012 type 1.25 —— MMU-AP0151H 015 type 1.70 —— MMU-AP0181H 018 type 2.00 —— 4-way Air Discharge MMU-AP0241H 024 type 2.50...
  • Page 12 Capacity Capacity Cooling Heating Type Appearance Model name PMV Kit rank code capacity (kW) capacity (kW) MMK-AP0071H 007 type 0.80 Available MMK-AP0091H 009 type 1.00 Available MMK-AP0121H 012 type 1.25 Available High Wall Type (1 series) MMK-AP0151H 015 type 1.70 Available MMK-AP0181H 018 type...
  • Page 13 1-1-3. Branching Joints and Headers *1 Model name Usage Appearance Indoor unit capacity code (*2) : RBM-BY53E Total below 6.4 Y-shape branching joint Indoor unit capacity code (*2) : RBM-BY103E Total 6.4 or more and below 7.8 Indoor unit capacity code (*2) : 4-branching header RBM-HY1043E Total below 7.8...

  • Page 14: Remote Controller

    1-1-5. Remote Controller Model Name Appearance Application Function name Connected to indoor unit • Start / Stop • Mode Change • Temperature setting • Fan speed • Timer function 1) On or off elapsed timer with 30 minutes increments. Automatic off function. 2) Weekly when combined with RBC-EXW21E2 weekly schedule operation can be operated.
  • Page 15 Model Name Appearance Application Performance name Connected to outdoor unit Individual control up to 64 indoor units. or indoor unit Individual control for max. 64 indoor units divided into 4 zones. (Up to 16 indoor units for each zone) Outdoor unit Up to 16 outdoor units are connect- able.
  • Page 16 Model Name Appearance Application Performance name Connected to central Weekly schedule operation remote controller or 1) Setting different start / stop time for wired remote controller each day of the week 2) ON / OFF can be set 3 times a day. OFF ON OFF ON 8:00...
  • Page 17 n Remote controllers Name Wired remote controller Simple wired remote controller Weekly timer CODE No. SuMoTuWeTh Fr Sa DATA SETTING TEST PROGRAM1 TEST ˚C UNIT No. SETTING ˚F ERROR PROGRAM2 R.C. PROGRAM3 TEMP. ON / OFF Appearance WEEKLY TIMER TIMER SET MODE TIME SWING/FIX...
  • Page 18 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 6 4 3 1 2 5 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 6 4 3 1 2 5 5 4 3 2 1 CN334 CN333...
  • Page 19 6 4 3 1 2 5 6 4 3 1 2 5 1 2 3 4 5 6 (BLU) (GRN) (RED) (BLU) CN083(WHI) CN068 CN033 1 2 3 CN030 1 2 3 4 5 6 CN082 Color CN104 RY007 indication (YEL) RED : RED P301...
  • Page 20 6 4 3 1 2 5 6 4 3 1 2 5 1 2 3 4 5 6 (BLU) (GRN) (RED) (BLU) CN083(WHI) 1 2 3 1 2 3 4 5 6 CN068 CN033 CN030 CN082 Color CN104 RY007 (YEL) indication CN301 (BLK)
  • Page 21 Color Parts name Symbol indication Fan motor RED : RED Indoor temp sensor WHI : WHITE Temp sensor YEL : YELLOW Temp sensor BLU : BLUE Temp sensor BLK : BLACK Louver motor GRY: GRAY High ceiling setup Drain pump motor PNK : PINK 1 2 3 4 5 Float switsh...
  • Page 22 1 2 3 6 4 3 1 2 5 1 2 3 6 4 3 1 2 5 CN333 1 2 3 4 5 6 CN82 CN33 CN34 CN68 (WHI) (BLU) (WHI) (RED) 1 2 3 4 5 6 1 2 3 4 5 3 2 1 (BLU) CN334...
  • Page 23 (Option) Surge absorber 43F1 Color indication CN100 (BLU) (GRN) RED : RED CN083(WHI) (BRN) 1 2 3 1 2 3 CN068 CN033 WHI : WHITE YEL : YELLOW CN104 CN102 CN101 (BLK) RY007 BLU : BLUE CN030 (YEL) (RED) (BLK) CN080 P301 BLK : BLACK...
  • Page 24 1 2 3 4 5 1 2 3 4 5 CN334 CN333 1 2 3 4 5 CN82 1 2 3 4 5 CN33 CN34 CN68 (WHI) (WHI) (BLU) (WHI) (RED) 5 4 3 2 1 1 2 3 4 5 1 2 3 (BLU) RY302...
  • Page 25 1 2 3 1 2 3 CN334 CN333 2 3 4 5 6 (WHI) (WHI) 1 2 3 4 5 6 1 2 3 4 5 CN82 CN33 CN34 CN104 CN102 CN101 CN100 (BLU) (WHI) (RED) (YEL) (RED) (BLK) (BRW) CN68 RY302 CN103...
  • Page 26 Color identification Louver BROWN Pulse motor motor WHITE valve indicates the terminal block, letter at inside YELLOW indicates the terminal number. motor BLUE BLACK 2. A dotted line and broken line indicate the GRAY wiring at site. PINK ORANGE indicates the control P.C. board. GRN &...
  • Page 27 RED BLK ORN BLU YEL 1 2 3 4 5 6 3 CN030 CN083 CN068 CN033 CN082 (WHI) (BLU) (GRN) (BLU) (RED) 1 2 3 4 5 6 CN104 RY007 (YEL) P301 (BLK) RY002 RY001 CN102 (RED) RY004 RY006 CN101 (GRY) (BLK) CN304...
  • Page 28 RED BLK ORN BLU YEL RED BLK ORN BLU YEL CN083 CN083 CN068 CN033 1 2 3 4 5 6 (WHI) (WHI) (BLU) (GRN) 1 2 3 4 5 6 For AP0071BH,AP0091BH,AP0121BH CN030 CN082 CN104 (RED) (BLU) RY007 (YEL) R301 (BLK) RY002 RY001...
  • Page 29 RED BLK ORN BLU YEL CN083 CN068 3 CN033 3 CN030 1 2 3 4 5 6 CN082 (WHI) (BLU) (GRN) (RED) (BLU) 1 2 3 4 5 6 CN104 RY007 (YEL) P301 (BLK) RY002 RY001 CN102 (RED) RY004 RY006 CN101 (BLK) (GRY)
  • Page 30 Non Drain pump type ("SH" Type) Non Drain pump type Drain pump type ("SH" Type) ("SPH" Type) CN34 CN68 (BLU) (RED) (External static pressure setup) 1 2 3 Color indication CN334 CN333 CN82 CN33 CN34 1 2 3 4 5 6 RED : RED (RED) (WHI)
  • Page 31 Capacitor...
  • Page 32 2-3. Connection of PMV Kit Model: RBM-PMV0361E, RBM-PMV0901E Indoor unit Pulse motor valve (PMV) (Indoor unit side) PMV lead wires Connection cable PMV Kit CN82 connector Connector conversion cable Indoor control P.C. board...

  • Page 33: Parts Rating

    3. PARTS RATING 3-1. Indoor Unit 4-way Air Discharge Cassette Type Model MMU-AP 0091H 0121H 0151H 0181H 0241H 0271H 0301H Fan motor SWF-230-60-1 Drain pump motor ADP-1409 Float switch FS-0218-102 TA sensor Lead wire length : 155mm TC1 sensor Ø4 size lead wire length : 1200mm Vinyl tube (Blue) TC2 sensor Ø6 size lead wire length : 1200mm Vinyl tube (Black) TCJ sensor...

  • Page 34: Way Air Discharge Cassette Type

    2-way Air Discharge Cassette Type Model MMU-AP 0071WH 0091WH 0121WH 0151WH 0181WH Fan motor AF-230-53-4G AF-230-39-4B Running capacitor for fan motor AC 400V, 1.0µF AC 450V, 2.0µF Drain pump motor PJD-05230TF-1 Float switch FS-0208-608 Control P.C. board transformer TT-13 Pulse motor EDM-MD12TF-3 Pulse motor valve EDM-B25YGTF...
  • Page 35 Concealed Duct Standard Type Model MMD-AP 0071BH 0091BH 0121BH 0151BH 0181BH Fan motor ICF-280-120-2 Drain pump motor ADP-1409 Float switch FS-0218-102 Pulse motor EDM-MD12TF-3 Pulse motor valve EDM-B25YGTF EDM-B40YGTF TA sensor Lead wire length : 618mm TC1 sensor Ø4 size lead wire length : 1200mm Vinyl tube (Blue) TC2 sensor Ø6 size lead wire length : 1200mm Vinyl tube (Black) TCJ sensor...

  • Page 36: Under Ceiling Type

    Under Ceiling Type Model MMC-AP 0151H 0181H 0241H 0271H 0361H 0481H Fan motor SWF-280-60-1 SWF-280-60-2 SWF-280-120-2 Louver motor MP24GA1 Pulse motor EDM-MD12TF-3 Pulse motor valve EDM-B40YGTF EDM-B60YGTF-1 TA sensor Lead wire length : 155mm Vinyl tube TC1 sensor Ø4 size lead wire length : 1200mm Vinyl tube (Blue) TC2 sensor Ø6 size lead wire length : 1200mm Vinyl tube (Black) TCJ sensor...

  • Page 37: Outdoor Unit

    3-2. Outdoor Unit Model MCY-MAP0401HT MCY-MAP0501HT MCY-MAP0601HT Compressor DA421A3F-20M2 4-way valve coil VHV type (AC220–240V, 50Hz) 4-way valve STF-0401G1 Pulse motor valve coil HAM-MD12TF-3 (DC12V) Pulse motor valve HAM-BD24TF-1 Solenoid valve coil SV2, SV4, SV5 : VPV type (AC220-240V, 50Hz)

  • Page 38: Parts Layout In Outdoor Unit

    3-5. Parts Layout in Outdoor Unit Reactor box (Weight : 9kg) I/F P.C.board TL sensor PMV(Pulse Motor valve) TS sensor Low pressure sensor Solenoid valve (SV5) Liquid tank 4-way valve Solenoid valve (SV2) High pressure sensor Solenoid valve (SV4) TD sensor High pressure switch Compressor Compressor- case heater...

  • Page 39: Name Of Each Part

    3-6. Name of Each Part [1-way Air Discharge Cassette Type] MMU-AP0071YH to AP0121YH Sold Separately Parts 3-6-1. Outdoor Unit Earth screw Air outlet/Air outlet flap It is included in the Select air blow direction incooling Air outlet (Discharge) electric parts box. or heating operation each.

  • Page 40: Parts Name Of Remote Controller

    3-7. Parts Name of Remote Controller [Under Ceiling Type] Button Air inlet port Display section Button to open/close the suction port The air in the room is sucked in from this port. In the display example, all indicators are displayed for the explanation. CODE No.

  • Page 41: Correct Usage

    Operation section 3-8. Correct Usage Push each button to select a desired operation. When you use the air conditioner for the first time or when you change the SET DATA value, follow the proce- This remote controller can operate a maximum of 8 indoor units. dure shown below.

  • Page 42: Adjustment Of Wind Direction

    How to set up the air direction REQUIREMENT Push SWING/FIX button. [In Cooling operation] Every pushing the button, the air direction changes. • The operation will start after approximately 1 minute. [In Heating operation (For Heat-pump model only)] In Heating operation •...
  • Page 43 Based on the shape or arrangement of the room, the cold air and hot air can be discharged in two directions Under Ceiling Type or three directions. For details, please contact your local dealer. • While the air conditioner is not in operation, the horizontal flap (Up/Down air direction adjust- INFORMATION ment plate) will automatically point upwards.
  • Page 44 Right/Left air direction adjustment Floor Standing Cabinet Type To change the air outlet direction to the right or left side, set the vertical flap located behind the horizontal flap to the desired direction. [In Cooling operation] INFORMATION In cooling operation, set the air outlet flap with a horizontal set point so that the cold air diffuses the whole room.

  • Page 45: Timer Operation

    3-10. Timer Operation Floor Standing Type Adjustment of air flow direction upwards/downwards A type of timer operation can be selected from the following three types. OFF timer : The operation stops when the time on the timer has reached the set time. [In Cooling operation] Repeat OFF timer : The unit will stop, every time the set time period has elapsed.
  • Page 46 3-11. Installation 3-12. Maintenance Installation location Cleaning of air filter • When [FILTER] is displayed on the remote controller, it is time to check and if necessary clean the filter. WARNING • Clogging of air filter decreases the cooling/heating effect. •...
  • Page 47 Re-installing the air filter High Wall Type • Insert the the air filter back into the unit, ensuring that both sides of the filter are positioned correctly inside (Model : 1H series) of the plastic frame. • Push the projection at the center of the air filter. •...

  • Page 48: Air Conditioner Operations And Performance

    If you do not plan to use the unit for more than 1 month 3-13. Air Conditioner Operations and Performance 1. Operate the fan for 3 to 4 hours to dry the inside of the unit Check before operation WARNING •...
  • Page 49 3-15. When The Following Symptoms Air Found The slot provided at side surface of the outdoor unit is an air intake for cooling the electrical parts. Check the points described below before contacting your local service repair center. If the air intake would be clogged, a trouble is caused on the electrical parts.
  • Page 50 Confirmation and check When a error has occurred in the air conditioner, the check code and the indoor unit No. will appear CODE No. on the display part of the remote controller. UNIT No. The check code is only displayed during while the unit is operating.

  • Page 51: Refrigerant Piping Systematic Drawing

    4. REFRIGERANT PIPING SYSTEMATIC DRAWING 4-1. Refrigerant Cycle Diagram Model: MCY-MAP0401HT, MCY-MAP0501HT, MCY-MAP0601HT, MCY-MAP0401HT2D, MCY-MAP0501HT2D, MCY-MAP0601HT2D Outdoor unit Sensor (TO) Heat exchanger Sensor (TE) Strainer Capillary Solenoid valve 4-way valve tube 2 (SV5) Sensor (TS) Check valve Strainer Capillary Solenoid valve...
  • Page 52 4-2. Explanation of Functional Parts Functional part name Functional outline Connector Solenoid valve 1) Low-pressure release function CN312 (White) 2) High-pressure release function 3) Gas balance function during off time 4) Hot gas bypass into accumulator 1) High-pressure release function CN311 (Blue) 2) Low-pressure release function 1) Preventive function for high-pressure rising in heating operation...

  • Page 53: Indoor Unit

    4-3. Indoor Unit Liquid side Gas side Strainer Capillary tube Air heat exchanger at indoor side Pulse Motor Valve (PMV) Distributor Sensor (TCJ) Sensor (TC2) Fan motor Sensor (TC1) Sensor (TA) (NOTE) MMU-AP0071YH to AP0121YH type air conditioners have no TC2 sensor. Functional part name Functional outline PMV (Pulse motor valve)

  • Page 54: Switch (Sw08) Set Up Of The Outdoor Unit

    5. SWITCH (SW08) SET UP OF THE OUTDOOR UNIT When using the outdoor unit under the following conditions, it is necessary to set up DIP switch on the outdoor unit interface P .C. board. CAUTION When anyone of the following condition is applied, set up DIP switch. 1.

  • Page 55: Control Outline

    6. CONTROL OUTLINE 6-1. Indoor Unit 6-1-1. Control Specifications Item Outline of specifications Remarks Power supply (1) Identification of outdoor unit is reset. When the power supply is reset, the outdoor units are individually identified and communication is established. (2) Check code clear When the power supply is reset, the check code is also reset.
  • Page 56 Item Outline of specifications Remarks Prevention of (1) In all heating operation, the upper limit of the fan tap is set by cold air one with higher temperature of TC2 sensor and TCJ sensor. discharge • When B zone has continued for 6 minutes, the operation •...
  • Page 57 Item Outline of specifications Remarks Recovery control (1) The indoor unit which stops operation, thermostat is OFF, • Recovery operation is for cooling or operates in FAN mode opens PMV of the indoor unit by usually executed every 2 refrigerant and oil the specified opening degree when cooling refrigerant or oil hours.
  • Page 58 Item Outline of specifications Remarks “ ” and “ ” <Operation standby> ..Display on remote controller • “ ” goes on. display (1) • “P05” is one of displays of power wire missing. (Operation and • “P05” of power cable is detected. heating stand-by) •...
  • Page 59 6-2. Outdoor Unit 6-2-1. Operation Start/Operation End The compressor, solenoid valve, pulse motor valve (PMV), outdoor fan, etc. are controlled by a command from the indoor controller. The follower outdoor unit starts/stops by a command from the header outdoor unit. Item Operation explanation and applied data, etc.
  • Page 60 Item Operation explanation and applied data, etc. Remarks Defrost control (1) Defrost start condition • During the defrost (Reverse cycle operation, all solenoid The defrost function is initiated when the measurement defrost method) 4-way valves are OFF temperature taken from the TE sensor is lower than –1°C for and all compressors a period of 25 minutes after compressor initial start up and 55 are operating.
  • Page 61 Item Operation explanation and applied data, etc. Remarks Case heater Heating is provided for both the compressor case and accumulator. control When the compressor in any outdoor unit is stopped, the heater is switched on to prevent accumulation of refrigerant. After installation of a system, it should be powered for the specified period of time prior to operating a test run to prevent damage to the system.
  • Page 62 Other cautions 1. Cooling operation in low ambient temperatures 1) The indoor unit freeze prevention control system (TC sensor) may decrease the command frequency to the outdoor unit when low coil temperatures are detected. 2) The cooling capacity control may decrease the command frequency to the outdoor unit when low ambient temperature is detected.

  • Page 63: Applied Control

    7. APPLIED CONTROL 7-1. Indoor Unit 7-1-1. 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 SWING/FIX VENT...
  • Page 64 Table: Function selecting item code (DN) (Items necessary to perform the applied control at the local site are described.) Item Description At shipment Filter display delay 0000 : None 0001 : 150H According to type timer 0002 : 2500H 0003 : 5000H 0004 : 10000H Dirty state of filter 0000 : Standard...
  • Page 65 TYPE Item code [10] Setup data Type Abbreviated Model name 0000 1-way Air Discharge Cassette MMU-AP 0001 4-way Air Discharge Cassette MMU-AP 0002 2-way Air Discharge Cassette MMU-AP 0003 1-way Air Discharge Cassette (Compact type) MMU-AP 0004 Concealed Duct Standard MMD-AP 0005 Slim Duct...

  • Page 66: Wiring Diagram

    7-1-2. Applied Control in Indoor Unit n Remote location ON/OFF control box (TCB-IFCB-4E) [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 67 n Ventilating fan control from 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 68 n Leaving-ON prevention control [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 item code set to the connected indoor unit.
  • Page 69 7-2. Outdoor Unit 7-2-1. Applied Control in Outdoor Unit The following functions are available by using a separately supplied P .C. board. Set up the switches on the outdoor unit (U1). Function Switch No. Connector No. Used control P.C. board Power peak-cut control (Standard) SW07 CN513...
  • Page 70 7-2-2. Placing position Install this optional P .C. board to the back side of the Interface P .C. board on outdoor unit. Be sure to turn off the power switch before installing. 1) If the screw of the position shown in Fig. 1 is removed and an upper right hook is slipped, an interface board will open.
  • Page 71 7-2-4. Power Peak-cut Control n Feature The upper limit capacity and running current of the outdoor unit is restricted based on the demand request signal from outside. n Normal current Outdoor unit capacity type MCY-0401 type MCY-0501 type MCY-0601 type Normal current (Maxim running current) n Function / Electric wiring diagram Two type control can be selected by setting SW07 on the interface P .C.
  • Page 72 [Expansion function] Outdoor unit Local supply I/F P.C. board TCB-PCDM2E Display Power SW07 relay OPERATION supply Bit 2 ON L1 : Display lamp surging power peak-cut control. Connection cable CN513 PJ17 Shield wire <SW07-Bit 2 ON> Input SW07-Bit 1 OFF SW07-Bit 1 ON Display relay (L1)
  • Page 73 7-2-5. External master ON/OFF control n Feature The outdoor unit starts or stops the system. n Wiring Size Length Type Input wiring 3-core, 0.75 mm² Up to 500 m Shield wire n Function / Electric wiring diagram Outdoor unit Local supply I/F P.C.
  • Page 74 7-2-6. Night Operation (Sound Reduction) Control n Feature Sound level can be reduced with connecting outdoor interface P .C. board by restricting compressor and fan speed. n Wiring Size Length Type Input wiring 2-core, 0.75 mm² Up to 500 m Shield wire n Function / Electric wiring diagram Outdoor unit...

  • Page 75: Operation Mode Selection Control

    7-2-7. Operation Mode Selection Control n Feature This control can be operated with the operation mode which is permitted by SMC or SMH. n Wiring Size Length Type Input wiring 3-core, 0.75 mm² Up to 500 m Shield wire n Function / Electric wiring diagram Outdoor unit Local supply I/F P.C.
  • Page 76 7-2-8. Error Output Control n Feature Operation and error monitoring is possible by using error output control board “TCB-PCIN2E”. n Wiring Size Length Type 4-core, 0.75 mm² ∗ Up to 200 m Output wiring Shield wire 4-core, 1.5 mm² ∗ Up to 400 m * In conformity with design 60245 IEC 57.

  • Page 77: Pmv Kit Out Line

    8. PMV KIT OUT LINE 8-1. Purpose of Using In the case of very quiet room, and also very nervous for indoor unit noise level, PMV Kit should be installed before indoor unit which should become lower noise level. Multi-indoor units have Pulse Motor Valve (PMV) for control refrigerant flow. Multi-air conditioner, on unstable condition, for example starting time, flowing noise of refrigerant can be heard conspicuously.
  • Page 78 8-3. Effect of Connecting PMV Kit without Fully Opening of Indoor Unit PMV Effect of miss-installation which PMV of indoor unit was not fully opened (1500 pulse) are as follows. Following symptom occurred, PMV of indoor unit should be fully opened. 1.

  • Page 79: Test Operation

    9. TEST OPERATION 2. In case that a central control system is connected (Before address setup) 9-1. Procedure and Summary of Test Operation A test operation is executed in the following procedure. When a trouble or an error occurs in each step, remove causes of a trouble or an error referring to the section “9.
  • Page 80 Check list 1 Check list 2 Calculate the additional amount of refrigerant from the following: • Using the “Check list 1”, check there is no trouble in the installation work. Is capacity of the leak breaker appropriate? Outdoor total capacity XXXX Indoor unit XXXX...

  • Page 81: Address Setup

    9-3. Check at Main Power-ON 9-4. Address Setup After turning on the main power of the indoor units and outdoor unit in the refrigerant line to be executed with a After power-ON, set up the indoor address from the interface P.C. board of the outdoor unit. test operation, check the following items in outdoor and each indoor unit.
  • Page 82 9-4-3. Address Setup Procedure REQUIREMENT Group control over (Example) multiple refrigerant lines In this air conditioner, it is required to set up address to the indoor unit before starting opera- • When a group control is performed over the tion. Set up the address according to the following setup procedure. multiple refrigerant lines, be sure to turn on the Cabling systematic...
  • Page 83 8. When address setup has finished in all the sysem, turn off Manual address setup from remote controller SW30-2 on the interfase P .C. boards of the lines connected to Outdoor unit interface P.C. board the identical central control except a line with least line In case to decide an address of the indoor unit prior to finish of indoor wiring work and unpracticed outdoor address number.
  • Page 84 Note 1) • To confirm all the unit numbers from an arbitrary wired remote controller; <Procedure> (Operation while the air conditioner stops) When setting the line address from the remote controller, do not use address 29 and 30. The address 29 and 30 cannot be set up in the outdoor unit. Therefore if they are incorrectly set up, a check The indoor unit No.
  • Page 85 • To change all the indoor addresses from an arbitrary wired remote controller; Clearance of address (Return to status (Address undecided) at shipment from factory) (When the setup operation with automatic address has finished, this change is available.) Contents : Using an arbitrary wired remote controller, the indoor unit address can be changed for each same Method 1 refrigerant line An address is individually cleared from a wired remote controller.
  • Page 86 9-4-4. Check after Address Setup When Central Control System is Connected In case of increase the address-undefined indoor units (Extension, etc.) When the central control system is connected, check the following setup has finished after address setup. If set up the indoor address of which address is undefined accompanied with extension of indoor units, replace- ment of P .C.

  • Page 87: Troubleshooting In Test Operation

    9-5. Troubleshooting in Test Operation If the phenomena appear, such as a check code is output or the remote controller is not accepted in power-ON after cabling work or in address setup operation, the following causes are considered. 9-5-1. A check Code is Displayed on the Remote Controller Check code Outdoor unit displayed on...
  • Page 88 9-5-2. Operation from remote controller is not accepted and a check code is dis- played on 7-segment display of the interface P.C. board of the outdoor unit. 7-segment Remote display of Cause Countermeasures controller status outdoor unit No response Line addresses and indoor addresses of all the connected Set up addresses.
  • Page 89 Incorrect wiring example (Fig. 1) Remote Header unit Incorrect example controller status 7-segment display No response E19-00 Outdoor unit U3/U4 Indoorunit Indoorunit (Fig. 2) Status Incorrect example Number of connected outdoor units is short. Outdoor unit Outdoor unit U1/U2 U1/U2 Indoorunit Indoorunit Indoorunit...

  • Page 90: Test Operation Check

    9-6. Test Operation Check 9-6-1. Fan Operation Check START Push [START/STOP] button. When an error code has been displayed on the remote Select the operation mode [FAN]. controller, refer to Section 8-5-1. Is air discharged from the Check indoor fan, fan motor and fan circuit. discharge port of the indoor unit? (Ensure power has been isolated before removing any covers.) Check for items in contact with fan.
  • Page 91 Wireless remote controller (Except 4-way Air Discharge Cassette type, Under Ceiling type and 1-way Air Discharge Cassette type (2 Series)) Remove the screw which fixes the name plate to the receiver part on the wireless remote controller. Remove the nameplate of the receiver section by inserting a minus screwdriver, into the notch at the bottom of the plate, and set the Dip switch to [TEST RUN ON].
  • Page 92 In case of wireless remote controller (for Under Ceiling type and 1-way Air Discharge Cassette type (2 Series)) Procedure Description Turn on power of the air conditioner. The operation is not accepted for 5 minutes when power has been turned on at first time after installa- tion, and 1 minute when power has been turned on at the next time and after.
  • Page 93 2. Test operation START Refer to “Test operation procedure” of Test operation for one indoor unit indoor remote controller. The operation does not start approx. 3 minutes Operation start after power-ON or after operation stopped. (NOTE) After power-ON, it may require Max. 10 minutes to start the operation due to the initial communication of the system.
  • Page 94 (NOTE 1) Criteria for judging difference between suction and discharge temperature 1. Cooling After operation for a minimum of 30 minutes in [COOL] mode, check the dry bulb temperature difference. Temperature difference: 8°C or more between suction and discharge air of the indoor unit. (In Max-Hz operation) 2.

  • Page 95: Service Support Function

    9-7. Service Support Function 9-7-1. Function to Start/Stop (ON/OFF) Indoor Unit from Outdoor Unit The following functions enables the start and stop of the indoor units using the switches on the interface P .C. board of the header unit. Function Outline Setup/Release 7-segment display...

  • Page 96: Operation Procedure

    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 cooling test operation mode, using switches on the interface P .C. board of the outdoor unit. Operation procedure Power ON Be sure to turn on power at the indoor side before power-ON of outdoor unit.
  • Page 97 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 P .C. board of the outdoor unit. Operation procedure Power ON Be sure to turn on power at the indoor side before power-ON of outdoor unit. If an error is already displayed under condition of SW01 [1], SW02 [1], SW03 [1], resolve the problem using the troubleshooting guide and then execute the...
  • Page 98 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 P .C. board of the outdoor unit. Set SW01 [16] and set SW02, SW03 to indoor address No. (1 to 64) to be started (Refer to the following ∗...

  • Page 99: Error Clearing Function

    9-7-2. Error Clearing Function 1. Clearing from the main remote controller [Error clearing in outdoor unit] Error of the outdoor unit is cleared by the unit of one refrigerant circuit system to which the indoor units oper- ated by the remote controller. (Error of the indoor unit is not cleared.) For clearing errors, the service monitor function of the remote controller is used.
  • Page 100 2. Clearing from the interface P.C. board Using the switches on the interface P .C. board, this function is to clear the currently detected error for each refrigerant circuit system without resetting the power supply. (→ Restart of error detection) Errors in both outdoor and indoor units are once cleared.

  • Page 101: Remote Controller Distinction Function

    9-7-3. Remote Controller Distinction Function This function is provided to distinguish the remote controller connected from the outdoor unit to the indoor unit for a refrigerant circuit system using switches on the interface P .C. board of the outdoor unit. Distinction procedure Be sure turn on the power of the indoor unit prior Power ON...
  • Page 102 9-7-4. Pulse Motor Valve (PMV) Forced Open/Close Function in Indoor Unit This function is provided to fully open or close forcibly the PMV for 2 minutes in all indoor units, using the switch operation on the interface P .C. board of the outdoor unit. This function is also used to open the PMV fully when turning off the power and executing an operation, for example, vacuuming.
  • Page 103 9-7-6. Solenoid Valve Forced Open/Close Function in Outdoor Unit This function is provided to forcibly open/close each solenoid valve mounted in the outdoor unit by use of the switches provided on the outdoor unit interface P .C. board. This function confirms the operation of each solenoid valve.

  • Page 104: Fan Operation Check In Outdoor Unit

    9-7-7. Fan Operation Check in Outdoor Unit This function is provided to check the fan operation on the interface P .C. board in the outdoor unit. The frequency of the fan speed can be controlled. Therefore utilize this function to check the operation or abnormal sound in the fan system. NOTE) Do not use this function during operation of the compressor.
  • Page 105 8-7-8. Manual Adjustment Function of Outside Temp (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 avail- able by set up the value manually to position near the current outside temperature.
  • Page 106 9-7-9. Indoor Fan Operation Check Function This function is provided to check operation of single indoor unit without using communication with the remote controller or outdoor unit. This function can be used regardless operating or stopping of the system. However, if this function is used for a long time, a trouble of the air conditioner may be caused. Therefore using of this function should be restricted to several minutes.

  • Page 107: Monitor Function Of Remote Controller Switch

    9-7-11. Monitor Function of Remote Controller Switch When using a remote controller with the model name RBC-ATM21E, the following monitor functions can be used. Calling of display screen [Contents] The temperature or the operation status of the remote controller, indoor unit, or each sensor of the outdoor unit can be known by calling up the service monitor mode from the remote controller.

  • Page 108: Troubleshooting

    10. TROUBLESHOOTING 10-1. Troubleshooting Summary 1. Before troubleshooting 1) Required tools / measuring devices • Screwdrivers (Philips, Flat), spanner, longnose pliers, nipper, push pin for reset switch, etc. • Digital multimeter, thermometer, pressure gauge, etc. 2) Confirmation before check (The following items are not troubles.) Operation Check items Compressor does not operate.

  • Page 109: Check Code List

    10-2. Check Method If an trouble occurs, the error code can be retrieved from the main remote controller/central remote controller (LCD display) or the header unit interface P .C. board (7-segment display). Using this self diagnostic function, the trouble can be identified using the table below. Check code list The following list shows all fault codes.
  • Page 110 Check code Wireless remote controller Sensor block display Outdoor 7-segment display Wired of receiving unit Check code name Detecting device remote AI-NET central controller control display Timer Ready Operation display Auxiliary code Flash ¤ ¤ — — ALT Indoor TCJ sensor error Indoor ¤...
  • Page 111 Check code Wireless remote controller Sensor block display Outdoor 7-segment display Wired of receiving unit Check code name Detecting device remote AI-NET central controller control display Operation Timer Ready display Flash Auxiliary code ¤ ¤ — — ALT Indoor fan motor error Indoor ¤...
  • Page 112 New check code 1. Difference between the TCC LINK and AI-NET check code The displaying method of the check code changes in this model and onwards. AI-NET check code TCC Link Used characters Hexadecimal notation, 2 digits Alphabet + Decimal notation, 2 digits Characteristics of code Few classification of communication/ Many classification of communication/incorrect setup system...
  • Page 113 10-3. Troubleshooting by Check Display on Remote Controller In case of wired remote controller (RBC-AMT31E) 1. Confirmation and check When a trouble occurs in the air conditioner, the CODE No. check code and the indoor unit No. are displayed UNIT No. on the of the remote controller.
  • Page 114 In case of central remote controller (TCB-SC642TLE) ZONE ZONE GROUP CODE 1234 TEST UNIT No. SET DATA SETTING R.C. GROUP SELECT ZONE 1. Confirmation and check When a trouble occurred on the air conditioner, the check code and the indoor unit No. are displayed on the display section of the remote controller.
  • Page 115 In case of AI-NET central remote controller 1. Operation for CHECK display When pushing the CHECK switch, the indoor unit No. (Network address No.) including the check data is displayed in the UNIT No. display section, and the check code is displayed in the set up temp. display section. CHECK switch Push for 0.5 seconds to display CHECK code.
  • Page 116 10-4. Check Code and Check Position Displayed on the Remote Controller and Outdoor Unit (7-Segment Display of Interface) Check code Detected Outdoor 7-segment display Check code name Status Error detection condition Check item (position) Wired AI-NET position remote central control controller Check code Auxiliary code remote controller •...
  • Page 117 Check code Detected Wired Outdoor 7-segment display AI-NET Check code name Status Error detection condition Check item (position) position remote central control controller Check code Auxiliary code remote controller 01: Indoor/outdoor Automatic address All stop • When indoor automatic address started, other •...
  • Page 118 Check code Detected Check code Outdoor 7-segment display Status Error detection condition Check item (position) Wired AI-NET position name remote central control controller Check code remote controller Auxiliary code — — Indoor unit Indoor TCJ Corresponding • Resistance value of sensor is •...
  • Page 119 Check code Detected Check code Outdoor 7-segment display Status Error detection condition Check item (position) Wired AI-NET position name remote central control controller Check code remote controller Auxiliary code — Ps sensor error All stop Output voltage of Ps sensor was zero. •...
  • Page 120 Check code Detected Outdoor 7-segment display Check code name Status Error detection condition Check item (position) Wired AI-NET position remote central control controller Check code remote controller Auxiliary code — Low-pressure protective operation All stop Low-pressure Ps detected • Check full opening of service valve. operation lower than 0.02MPa.
  • Page 121 Check code Detected Error detection Wired Outdoor 7-segment display AI-NET Check code name Status Check item (position) position condition remote central control controller Check code Auxiliary code remote controller 01: Comp IPDU error IPDU quantity error All stop No. of IPDU units •...
  • Page 122 Check code Detected Check code Wired Outdoor 7-segment display AI-NET Status Error detection condition Check item (position) position name remote central control controller Check code Auxiliary code remote controller Indoor address Indoor Indoor All stop • Float switch operated. • Check the float switch connector. with trouble overflow error •...
  • Page 123 Check code Detected Check code Outdoor 7-segment display Status Error detection condition Check item (position) Wired AI-NET position name remote central control controller Check code remote controller Auxiliary code Detected outdoor 4-way valve All stop When abnormal refrigerating cycle data was •...
  • Page 124 Error detected by TCC-LINK central control device Check code Error detection Outdoor 7-segment display Detected position Check code name Status Check item (position) Display on AI-NET condition central control central control device remote controller Check code Auxiliary code — — TCC-LINK TCC-LINK central control Operation...

  • Page 125: Diagnosis Procedure For Each Check Code

    10-5. Diagnosis Procedure for Each Check Code Check code Check code name Cause of operation [E03] / [97] Communication error between No communication from remote controller and Check code Check code name Cause of operation indoor and remote controller communication adaptor (TCC-L / AI-NET) (Detected at indoor side) [E01] / [–]...
  • Page 126 Check code Check code name Cause of operation Check code Check code name Cause of operation [E06] / [04] Decreased number of indoor units [E07] / [–] Indoor/Outdoor 1. Communication lines (U1, U2) connection 1. Outdoor communication terminal resistance error between indoor and outdoor communication circuit error setup error (TCC-L / AI-NET)
  • Page 127 Check code Check code name Cause of operation Check code Check code name Cause of operation [E08] / [96] Duplicated indoor addresses Indoor addresses are duplicated. [E12] / [42] Automatic address start error 1. When indoor automatic address started, other refrigerant circuit system was setting (TCC-L / AI-NET) (TCC-L / AI-NET) automatic address.
  • Page 128 Check code Check code name Cause of operation Check code Check code name Cause of operation [E16] / [89] Connected indoor units [E18] / [97/99] Communication error between 1. There are 48 or more connected indoor units. Regular communication between indoor header capacity over indoor header and follower and follower is unavailable.
  • Page 129 Check code Check code name Cause of operation Check code Check code name Cause of operation [E20] / [42] Unit connected to other line [F01] / [0F] Indoor TCJ sensor error When starting automatic indoor address, a TCJ sensor Open/Short during automatic address device in another refrigerant system is (TCC-L / AI-NET)
  • Page 130 Check code Check code name Cause of operation Check code Check code name Cause of operation [F04] / [19] TD1 sensor error [F12] / [A2] TS sensor error TD1 sensor Open/Short TS1, TS2 sensor Open/Short (TCC-L / AI-NET) (TCC-L / AI-NET) This check code means detection of Open/Short of TS sensor.
  • Page 131 Check code Check code name Cause of operation Check code Check code name Cause of operation [F16] / [43] Outdoor pressure sensor miscabling [F24] / [43] Pd sensor error 1. High-pressure Pd sensor and low- Output voltage error of Pd sensor (Pd, Ps) pressure sensor Ps are exchanged.
  • Page 132 Check code Check code name Cause of operation Check code Check code name Cause of operation [H01] / [1F] Compressor breakdown [H02] / [1d] Compressor error (Lock) 1. Outdoor unit power line error 1. Outdoor unit power line error (TCC-L / AI-NET) 2.
  • Page 133 Check code Check code name Cause of operation Check code Check code name Cause of operation [H04] / [44] Compressor 1 case thermo operation [H06] / [20] Low-pressure 1. Case thermo circuit error 1. Service valve close protective operation (TCC-L / AI-NET) 2.
  • Page 134 Check code Check code name Cause of operation Check code Check code name Cause of operation [L04] / [96] Duplicated setup of outdoor line address [L07] / [99] Group line in individual indoor unit Outdoor line addresses are duplicated. The group line is connected in the individual indoor unit.
  • Page 135 Check code Check code name Cause of operation Check code Check code name Cause of operation [L10] / [88] Outdoor capacity unset [L20] / [98] Duplicated central The model selection jumper of the outdoor I/F Central control addresses are duplicated. P.C.
  • Page 136 Check code Check code name Cause of operation Check code Check code name Cause of operation [L30] / [b6] Interlock in indoor unit [P03] / [1E] Discharge temp TD1 error Outside error was input. 1. Service valve of outdoor unit closed. from outside (TCC-L / AI-NET) (TCC-L / AI-NET)
  • Page 137 Check code Check code name Cause of operation [P04] / [21] Actuation of 1. High-pressure SW error C Heating operation high-pressure SW (TCC-L / AI-NET) 2. Service valve closed 3. Pd sensor error Repair SV4 circuit. 4. Indoor/outdoor fan error Is SV4 circuit normal? Coil error, clogging, disconnection of wiring, etc.
  • Page 138 Check code Check code name Cause of operation Check code Check code name Cause of operation [P07] / [1C] Heat sink overheat error [P12] / [11] Indoor fan motor error 1. Power voltage error 1. Cabling error of fan motor connector (TCC-L / AI-NET) 2.
  • Page 139 Check code Check code name Cause of operation Check code Check code name Cause of operation [P13] / [47] Outdoor liquid back detection error [P15] / [AE] Gas leak detection 1. PMV error 1. Outdoor unit service valve closed (TCC-L / AI-NET) 2.
  • Page 140 Check code Check code name Cause of operation Check code Check code name Cause of operation [P15] / [AE] Gas leak detection [P19] / [08] 4-way valve operation error 1. Outdoor unit service valve closed 1. 4-way valve error (TCC-L / AI-NET) TD condition (Sub-code: 02) 2.
  • Page 141 Check code Check code name Cause of operation [P20] / [22] High-pressure protective operation 1. Pd sensor error (TCC-L / AI-NET) 2. Service valve closed. All heating operation 3. Indoor/outdoor fan error 4. Indoor/outdoor PMV clogging Is connector 5. Indoor/outdoor heat exchanger clogging connection of indoor Does heating indoor fan 6.
  • Page 142 Check code Check code name Cause of operation Check code Check code name Cause of operation [P22] / [1A] Outdoor fan IPDU error 1. Fan lock [P26] / [14] G-Tr short-circuit protection error 1. Outdoor unit power error (TCC-L / AI-NET) (TCC-L / AI-NET) 2.
  • Page 143 Check code Check code name Cause of operation Check code Check code name Cause of operation [P29] / [16] Compressor position [–] / [97] AI-NET communication line error 1. Wire connection error. AI-NET communication line error detective circuit error (TCC-L / AI-NET) 2.

  • Page 144: Segment Display Function

    10-6. 7-Segment Display Function n 7-segment display on the outdoor unit (Interface P.C. board) On the interface control P .C. board, a 7-segment LED is provided to check the operating status. The displayed contents are changed by combining the setup numbers of the rotary switches (SW01, SW02 and SW03) on the I/F P .C.
  • Page 145 1. Data display of system information SW01 SW02 SW03 Display contents Refrigerant name Displays refrigerant name. Model with refrigerant R410A Model with refrigerant R407C System capacity [ 4] to [ 6] : 4 to 6HP [HP] [ i. ∗ ∗. ∗ ∗ ] Total capacity of indoot units No.
  • Page 146 2. Data display of outdoor unit information SW01 SW02 SW03 Display contents Error data Displays outdoor unit number: [U1] to [U4] Displays check code (Latest code only is displayed.) There is no check code: [– – –] There is sub-code: Check code [∗ ∗ ∗] for 3 seconds, sub-code [–...
  • Page 147 3. Data display of outdoor cycle SW01 SW02 SW03 Display contents Pd pressure data Pd pressure (MPaG) is displayed with decimal data. (MPaG: Approx. 1/10 value of kg/cm G data) ∗. ∗ ∗ P d. ∗. ∗ ∗ Ps pressure data Ps pressure (MPaG) is displayed with decimal data.

  • Page 148: Temperature Sensor

    5. Outdoor EEPROM check code display ∗ The latest check code written in EEPROM on each outdoor unit is displayed. (It is used when confirming the check code after power supply has been reset.) Set SW01 to 03 as shown in the following table and the push SW04 for 5 seconds or more to display an check code. 7-segment display SW02 SW03...
  • Page 149 n Pressure sensor characteristics • I/O cable connection table High pressure side (Pd) Low pressure side (Ps) Pin No. Input/Output name Lead wire color Input/Output name Lead wire color OUTPUT White — — — — OUTPUT White Black Black • Output voltage — Pressure High pressure side (Pd) Low pressure side (Ps) 0.5 to 3.9 V DC...

  • Page 150: Pressure Sensor Output Check

    10-8. Pressure Sensor Output Check 10-8-1. Outdoor Unit n Pd sensor characteristics 0 to 4.41MPa (0.5 to 5V output with 0 to 4.41MPa) ‚ ƒ ƒ Voltage check between CN501 pins on the outdoor unit I/F P .C. board (Tester rod at pin side) VOLT...
  • Page 151 n Ps sensor characteristics 0 to 1.48MPa (0.5 to 5V output with 0 to 1.48MPa) ‚ ƒ ƒ Voltage check between CN500 pins on the outdoor unit I/F P .C. board (Tester rod at pin side) VOLT VOLT VOLT VOLT VOLT (MPa) (kg/cm²)
  • Page 152 Wired remote controller (Up to 2 units) Weekly timer Display Display driver Function setup Display Function setup Key switch Key switch DC5V Remote DC5V controller Power Power Secondary communication circuit circuit battery circuit Indoor unit Network adaptor (Option) Max. 8 units are connectable. *1 Network Indoor control P.C.
  • Page 153 Wired remote controller (Up to 2 units) Weekly timer Display Display driver Function setup Display Function setup Key switch Key switch DC5V Remote DC5V controller Power Power Secondary communication circuit circuit battery circuit Indoor unit Network adaptor (Option) Max. 8 units are connectable. *1 Network Indoor control P.C.
  • Page 154 Indoor unit Network adaptor (Option) Wireless remote controller kit Network Sensor P.C. board Indoor control P.C. board (MCC-1402) Remote adaptor Remote Remote EEPROM controller P.C. board controller controller communication (MCC-1401) communication communication Emergent circuit Power circuit circuit operation DC20V circuit Central control DC12V AI-NET...
  • Page 155 Indoor unit Network adaptor (Option) Network Indoor control P.C. board (MCC-1403) Remote adaptor Remote controller EEPROM P.C. board controller communication Wireless remote (MCC-1401) communication circuit DC20V controller kit circuit DC12V Central control AI-NET Remote remote controller DC5V communication TA sensor controller H8/3687 (Option)
  • Page 156 Wired remote controller Weekly timer Display Display driver Function setup Display Function setup Key switch Key switch DC5V Remote DC5V controller Power Power Secondary communication circuit circuit battery circuit Indoor unit Network adaptor (Option) Wireless remote controller kit Network Sensor P.C. board Indoor control P.C.
  • Page 157 Wired remote controller Weekly timer Display Display driver Function setup Display Function setup Key switch Key switch DC5V Remote DC5V controller Power Power Secondary communication circuit circuit battery circuit Indoor unit Network adaptor (Option) Network Indoor control P.C. board (MCC-1403) Remote adaptor Remote...
  • Page 158 Filter/Option error input Microcomputer operation LED EEPROM DC fan output Power supply Optional power supply PMV output Remote controller power supply LED DC fan return Drain pump output Float SW Fan output TCJ sensor EXCT Remote controller inter-unit cable HA (T10) TC1 sensor TA sensor Used for...
  • Page 159 Power transformer (Secondary side) (AC11V, 14V, 20V) Indoor/Outdoor communication (Spare) Power supply PMV output Indoor/Outdoor communication Microcomputer (Also used for communication of operation LED EEPROM the central control system) Power transformer (Primary side) (AC200V) Flap Remote controller power supply LED HA (T10) Optional output Remote controller...
  • Page 160 MCC-1520 2-way Air Discharge Cassette Type, 1-way Air Discharge Cassette Type (1 Series), Concealed Duct High Static Pressure Type, Floor Standing Cabinet Type, Floor Standing Concealed Type, Floor Standing Type CN02 I G O +15V MCC-1520-01 COMPONENT SIDE Power supply trans side (Input) Control P.C.
  • Page 161 11-1-3. Optional Connector Specifications of Indoor P.C. Board Connector Function Specifications Remarks Humidifier output CN66 DC12V In heating, thermo ON, Fan ON, Humidifier output ON * Humidifier provided, Drain pump ON is set up by CN70 Output short-circuit or from remote controller. (DN=40) Fan output CN32 DC12V...
  • Page 162 11-2. Outdoor Unit Positions to be checked on the interface P.C. board (MCC-1429) CN03 backup CN01 For control wiring between indoor and outdoor units Pressure sensor (Ps) Pressure sensor (Pd) CN01 backup Option input/output UART CN508,509,510, communication Terminator resistor 515,501,512 CN300 CN600 select SW30...
  • Page 163 Inverter P.C. board (MCC-1535) [IPDU1] Electrolytic condenser ( ) Between fan IPDU and comp IPDU Electrolytic condenser (+) Communication between +12V Reactor I/F and comp IPDU Reactor Compressor out put...
  • Page 164 Fan P.C. board (MCC-1531) (Fan IPDU) +12V Fan 2 out put Fan 1 out put DC15V in put DC320V in put Noise filter P.C. board (MCC-1551)
  • Page 165 11-2-1. Outdoor Interface P.C. Board Dip switch function exchange setup list Initial setup Part type Exchange contents at shipment SW01 Rotary SW 4bit 16 step Display / Operation switch (1) For 7-segment display / service operation SW02 Rotary SW 4bit 16 step Display / Operation switch (2) For 7-segment display / service operation SW03 Rotary SW 4bit 16 step Display / Operation switch (3) For 7-segment display / service operation...

  • Page 166: Backup Operations (Emergency Operation)

    12. BACKUP OPERATIONS (EMERGENCY OPERATION) When a trouble occurs in an outdoor unit or in one of the compressors in an outdoor unit, the malfunctioning unit or compressor stops and a backup operation (emergency operation) is available through the other function- ing outdoor units and compressors.

  • Page 167: Replacing Compressor

    13. REPLACING COMPRESSOR 13-1. Compressor Replacing Procedure (Outline) WARNING Never recover the refrigerant into outdoor unit. Be sure to use a refrigerant recovery device for refrigerant recovery for reinstallation or repair work. Recovery into the outdoor unit is unavailable; otherwise a serious accident such as rupture or ingury could occur.

  • Page 168: Replacing Procedure Of Parts

    14. REPLACING PROCEDURE OF PARTS Part name Procedure Remarks Cabinets and CAUTION others Upper plate Wear protective clothing on your hands Side cabinet as other components may cause injury etc. <Disassembling> 1) Stop unit operation and turn off power supply to unit. 2) Remove Front cabinet.
  • Page 169 Part name Procedure Remarks Inverter CAUTION Screw Screw assembly Wear protective clothing on your hands as other components may cause injury etc. <Disassembling> 1) Stop the unit operation and turn off the power I/F P.C. board I/F P.C. board supply to the unit. Suppor Supporter Supporter...
  • Page 170 Part name Procedure Remarks Inverter 10) Remove reactor assembly. assembly (Screw Ø4 × 10 5 pcs) (Continued) CAUTION Take care ! Too much heavy (9 kg) 11) Close I/F P .C. board. (Supporter) 12) Remove the fix screw of box. (Screw Ø4 ×...
  • Page 171 Part name Procedure Remarks <Disassembling> How to remove electric parts box 1) Stop the unit operation and turn off the (Continued) power supply to the unit. 2. Fan-IPDU WARNING CN01, CN02 CN01, CN02 Never open the cabinet while five CN804 CN804 minutes after turn off the power supply.
  • Page 172 Part name Procedure Remarks <Disassembling> How to remove electric parts box 1) Stop the unit operation and turn off the (Continued) power supply to the unit. 4. Noise filter electrolytic WARNING capacitor transformer Never open the cabinet while five minutes after turn off the power supply.
  • Page 173 Part name Procedure Remarks <Disassembling> How to remove electric parts box Wire clamp Wire clamp 1) Stop the unit operation and turn off the (Continued) power supply to the unit. 5. Reactor WARNING Never open the cabinet while five minutes after turn off the power supply. 2) Remove front and upper cabinet.
  • Page 174 Part name Procedure Remarks How to remove electric parts box CAUTION (Continued) Do not mistake wiring of a reactor. 5. Reactor If wiring is mistaken, electric parts will break. (Continued) [Correct] [Wrong] Reactor Reactor P.C. board P.C. board (IPDU) (IPDU) Wrong ! Lead wire with wire mark Wire with wire mark is...
  • Page 175 Part name Procedure Remarks Fan motor CAUTION Wear protective clothing on your hands as other components may cause injury etc. <Disassembling> 1) Stop unit operation and turn off power supply to unit. 2) Remove front cabinet. (Screw Ø4 × 10 3 pcs) Note : Slide to downward for unhook the hooking tab.
  • Page 176 Part name Procedure Remarks Compressor CAUTION Wear protective clothing on your hands as other components may cause injury etc. <Disassembling> 1) Stop unit operation and turn off power supply to unit. WARNING Never open the cabinet while five minutes after turn off the power supply. 2) Remove front cabinet, piping panel (Front) and (Rear).
  • Page 177 Part name Procedure Remarks Compressor 12) Adjustment of oil amount in the service compressor (Continued) • Adjust the oil amount in the service compressor based on the amount of oil found in the defective compressor by following instructions below. (1) If the amount of oil in the defective compressor is 0cc <...
  • Page 178 Part name Procedure Remarks Liquid tank CAUTION Wear protective clothing on your hands as other components may cause injury etc. <Disassembling> 1) Stop unit operation and turn off power supply to unit. TL sensor TL sensor WARNING Never open the cabinet while five minutes after turn off the power supply.
  • Page 179 Part name Remarks Parts positions Reactor box (Weight : 9kg) I/F P.C.board TL sensor PMV(Pulse Motor valve) TS sensor Low pressure sensor Solenoid valve (SV5) Liquid tank 4-way valve Solenoid valve (SV2) High pressure sensor Solenoid valve (SV4) TD sensor High pressure switch Compressor Compressor- case heater...
  • Page 180 Part name Procedure Remarks Attachment/ REQUIREMENT detachment of pipe fixing Wear protective clothing on your hands as rubber other components may cause injury etc. <Disassembling> 1) Squeeze the band either side of the clip to release. Compress the rubber to release the cup. 2) Pushing in the tab side of SUS band the tab comes off from square hole.
  • Page 181 Refrigerant Recovery in Outdoor Unit This outdoor unit has check valve and PMV (Pulse Motor Valve)at back and forth of heat exchanger. So, in some case, heat exchanger will become blockage situation. In case of changing compressor or cycle parts, refrigerant recovery works are difficult without fully opening of PMV. After fully opening PMV as following process, recover refrigerant by using recovery device.

  • Page 182: P.c. Board

    15. P.C. BOARD 15-1. Indoor Unit 15-1-1. Exchange of P.C. Board for Indoor Service Part code Model type P.C. board model Label display on P.C. board MMU-AP 1WH series MMU-AP 1YH series MMU-AP 1SH series 431-6V-207 MMD-AP 1H series MCC-1403 03RD M01 MML-AP 1H series...
  • Page 183 Method 2 Before exchange, it is impossible to read out the setup contents due to EEPROM error. Exchange of P .C. board for service & power ON: Procedure 2 ò Writing-in of the setup data such as the model name, capacity code, indoor unit address high ceiling setup, connection setup of option, etc to EEPROM based upon customer’s information: Procedure 3 ò...
  • Page 184 Procedure 2 : Exchange of P.C. board for service 1. Exchange P .C. board with a P .C. board for service. In this time, the jumper line (cut) setup or the (short-circuit) connecting connector setup on the previous P .C. board should be reflected on P .C.
  • Page 185 Procedure 3 : Writing-in of setup contents to EEPROM (The EEPROM contents which are installed on the service P .C. board have been set up at shipment from the factory.) TEST 1. Push buttons simultaneously for 4 seconds or more. (Corresponds to number of the operation diagram of the remote controller.) is displayed in the UNIT No box.) In this time,...
  • Page 186 Record the contents of the following before exchanging P.C. boards. (Item code list) Item Memo Setup at shipment from factory Filter sign lighting time According to type Dirty condition of filter 0000: Standard Central control address 0099: Undefined Heating inlet temp. shift 0002: +2°C (Floor standing: 0) * Automatic selection Cooling Auto mode existence...
  • Page 187 ¡ ¡ ¡ Intial setting of this Service P .C. board MCY-MAP0401HT, MCY-MAP0401HTZ, MCY-MAP0401HTZG ¡ × × MCY-MAP0401HT2D, MCY-MAP0401HT2DZ, MCY-MAP0401HT2DZG MCY-MAP0401HT2K MCY-MAP0501HT, MCY-MAP0501HTZ, MCY-MAP0501HTZG ¡ ¡ × MCY-MAP0501HT2D, MCY-MAP0501HT2DZ, MCY-MAP0501HT2DZG MCY-MAP0501HT2K MCY-MAP0601HT, MCY-MAP0601HTZ, MCY-MAP0601HTZG ¡ ¡ × MCY-MAP0601HT2D, MCY-MAP0601HT2DZ, MCY-MAP0601HT2DZG MCY-MAP0601HT2K ¡...

  • Page 188: Exploded Views And Parts List

    16. EXPLODED VIEWS AND PARTS LIST 16-1. Outdoor Unit MCY-MAP0401HT, MCY-MAP0501HT, MCY-MAP0601HT, MCY-MAP0401HT2D, MCY-MAP0501HT2D, MCY-MAP0601HT2D 16-1-1. Mini-SMMS Unit 1, 51 1, 51 Location Location Part No. Description Part No. Description 43120224 Fan, Propeller, PE492 4311M538 Mark, TOSHIBA 43191602 Guard, Fin 43149359 Socket, DIA 19.1–15.9...

  • Page 189: Refrigeration Circuit

    16-1-2. Refrigeration Circuit 19, 21 16, 20 22, 44, 59 16, 18 15,17 22, 43, 45 6, 56 16,20 22, 43, 44 Location Location Part No. Description Part No. Description 43041788 Compressor, 4314G210 Condenser Ass’y, Down DA420A3F-20M2 4314G211 Condenser Ass’y, Up 43050407 Thermostat, Bimetal 43146715...
  • Page 190 16-1-3. Controller for Air Conditioner TD : (Discharge pipe temp. sensor) holder TS : (Suction pipe temp. sensor) holder TE : (Condenser pipe temp. sensor) holder TO : (Outdoor pipe temp. sensor) holder (TS) (TL) (TE) (TO) (TD) Location Location Part No.
  • Page 191 16-1-4. Refrigeration Circuit Diagram ID Ø2.2 × 100L High pressure sensor Joint check Valve check Joint check Condenser High pressure Strainer Liquid line Compressor Accumulator Valve packed Pulse motor valve Strainer Tank liquid Gas line 4-way valve ID Ø1.5 × 200L Valve ball Low pressure sensor Joint check...
  • Page 192 16-2.PMV Kit RBM-PMV-0361E, RBM-PMV-0901E Location Location Part No. Description Part No. Description 43149356 Pipe Ass’y, Service PMV 43183025 Joint, 6.35–9.52 (PBM-PMV0361E) (PBM-PMV0901E) 43149357 Pipe Ass’y, Service PMV 43135015 Cable Ass’y, PMV (PBM-PMV0901E) 43135016 Cable Ass’y, Connector 43146707 Motor, PMV, EDM-MD12TF-3 43196113 Bushing –...
  • Page 193 TOSHIBA CARRIER CORPORATION 2 CHOME 12-32, KONAN, MINATOKU, TOKYO, 108-0075, JAPAN Copyright © 1999 to 2005 TOSHIBA CARRIER CORPORATION, ALL Rights Reserved.

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Mini-smms mcy-map0601htMini-smms mcy-map0601ht2dMini-smms rbm-pmv0361eMini-smms rbm-pmv0901eMini-smms mcy-map0401htMini-smms mcy-map0401ht2d ... Show all

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