1. Manuals
  2. Brands
  3. Toshiba Manuals
  4. Heat Pump
  5. MCY-MUG0401HSW-E
  6. Service manual

Toshiba MCY-MUG0401HSW-E Service Manual

Hide thumbs Also See for MCY-MUG0401HSW-E:
Table of Contents

Advertisement

Quick Links

Download this manual
AIR CONDITIONER (MULTI TYPE)
SERVICE MANUAL
Outdoor Unit
<MiNi-SMMS>
Model name:
<Heat Pump Model>
MCY-MUG0401HSW-E
MCY-MUG0501HSW-E
MCY-MUG0601HSW-E
MCY-MUG0401HSW-TR
MCY-MUG0501HSW-TR
MCY-MUG0601HSW-TR
FILE No. AEO-2202W

Advertisement

Table of Contents
loading

Related Manuals for Toshiba MCY-MUG0401HSW-E

Summary of Contents for Toshiba MCY-MUG0401HSW-E

  • Page 1 FILE No. AEO-2202W AIR CONDITIONER (MULTI TYPE) SERVICE MANUAL Outdoor Unit <MiNi-SMMS> Model name: <Heat Pump Model> MCY-MUG0401HSW-E MCY-MUG0401HSW-TR MCY-MUG0501HSW-E MCY-MUG0501HSW-TR MCY-MUG0601HSW-E MCY-MUG0601HSW-TR...

  • Page 2: Table Of Contents

    Original instruction (English) Contents 1 Product summary ........... . 24 1-1.
  • Page 3 7-2-3. Applied control of outdoor unit by optional P.C. board ......59 7-3. Notice Code..............71 7-4.
  • Page 4 8-7-10. Confirmation of the check code ( L02, L11, L13, L14 ) occurred during installation . 158 8-7-11. Confirmation of the number of Shut-off Valve units connected ....158 8-7-12.
  • Page 5 This service manual provides relevant explanations about new outdoor unit. Please refer to the following service manuals for each indoor units. Model name SVM File No. <4-Way Cassette Type> SVM-20095 MMU-UP***1HP-E/-TR (Made in Thailand model) A10-2004 MMU-UP***1H-E/-TR (Made in Japan model) <Compact 4-Way Cassette Type>...
  • Page 6 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 7 Definition of Protective Gear When the air conditioner is to be transported, installed, maintained, repaired or removed, wear protective gloves and ‘safety’ work clothing. In addition to such normal protective gear, wear the protective gear described below when undertaking the special work detailed in the table below. Failure to wear the proper protective gear is dangerous because you will be more susceptible to injury, burns, electric shocks and other injuries.
  • Page 8 Warning indications on the air conditioner unit Warning indication Description WARNING ELECTRICAL SHOCK HAZARD Disconnect all remote electric power supplies before servicing. WARNING Moving parts. Do not operate unit with grille removed. Stop the unit before the servicing. CAUTION High temperature parts. You might get burned when removing this panel.
  • Page 9 Precautions for safety The manufacturer shall not assume any liability for the damage caused by not observing the description of this manual. DANGER Before carrying out the installation, maintenance, repair or removal work, be sure to set the circuit breaker for both the indoor and outdoor units to the OFF position.
  • Page 10 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 11 Do not modify the products.Do not also disassemble or modify the parts. It may cause a fire, electric shock or injury. Prohibition of modification. When any of the electrical parts are to be replaced, ensure that the replacement parts satisfy the specifications given in the Service Manual (or use the parts contained on the parts list in the Service Manual).
  • Page 12 After repair work, surely assemble the disassembled parts, and connect and lead the removed wires as before. Perform the work so that the cabinet or panel does not catch the inner wires. If incorrect assembly or incorrect wire connection was done, a disaster such as a leak or fire is caused at user’s Assembly / side.
  • Page 13 When the service panel of the outdoor unit is to be opened in order for the compressor or the area around this part to be repaired immediately after the air conditioner has been shut down, set the circuit breaker to the OFF position, and then wait at least 10 minutes before opening the service panel.
  • Page 14 Declaration of Conformity Manufacturer: Toshiba Carrier Air-Conditioning Europe Sp.z o.o. ul. Gdańska 131, 62-200 Gniezno, Poland TCF holder: Toshiba Carrier Air-Conditioning Europe Sp.z o.o. ul. Gdańska 131, 62-200 Gniezno, Poland Hereby declares that the machinery described below: Generic Denomination: Air Conditioner...
  • Page 15 About refrigerant R32 This air conditioner adopts a new HFC type refrigerant (R32) which does not deplete the ozone layer. 1. Safety Caution Concerned to Refrigerant R32 Be sure that water, dust, the former refrigerant or the former refrigerating oil is not mixed into the refrigerating cycle of the air conditioner with refrigerant R32 during installation work or service work.
  • Page 16 4 Since the pressure of R32 is 1.6 times higher than that of the former refrigerant (R22), use tools and parts for high pressure resistance specification similar to R410A. 5 In the installation time, use clean pipe materials and work with great attention so that water and others do not mix in because pipes are affected by impurities such as water, oxide film, oil, etc.
  • Page 17 4. Tools : R410A tools available : Partly unavailable, : R410A tools unavailable Installation/service tools Applicability to R32 air Applicability to R22 air conditioner or not conditioner or not Tools / Equipment specification   Flare tool Clutch type Pipe flaring Copper pipe gauge for Flaring by —...
  • Page 18 5. Safety precautions related to regulations on Installation and Service. Make sure installation, servicing, maintenance and repair comply with instructions from TOSHIBA and with applicable legislation (for example, national gas regulation) and are executed only by authorized people. These safety cautions describe important matters concerning safety to prevent injury to users or other people and damages to property.
  • Page 19 • Solenoid valves shall not block in liquid refrigerant unless adequate relief is provided to the refrigerant system low pressure side. • Install the system according to Installation Manual so that it does not shut off in the liquid refrigerant. •...
  • Page 20 • All installers and others working in the local area shall be instructed on the nature of work being carried out. Work in confined spaces shall be avoided. 3. General work area • All maintenance staff and others working in the local area shall be instructed on the nature of work being carried out.
  • Page 21 - That capacitors are discharged to avoid possibility of sparking. - That there no live electrical components and wiring are exposed while charging, recovering or - purging the system. - That there is continuity of earth bonding. 10. Repairs to sealed components •...
  • Page 22 • Leak detection fluids are suitable for use with most refrigerants but the use of detergents containing chlorine shall be avoided as the chlorine my react with the refrigerant and corrode the copper pipe-work • If a leak is suspected, all naked flames shall be removed / extinguished. •...
  • Page 23 i) Do not exceed the maximum working pressure of the cylinder, even temporarily. j) When the cylinders have been filled correctly and the process completed, make sure that the cylinders and the equipment are removed from site promptly and all isolation valves on the equipment are closed off. k) Recovered refrigerant shall not be charged into another refrigeration system unless it has been cleaned and checked.
  • Page 24 Communication type, model names and the maximum number of connectable units ◆ Only TU2C Link can be used for the communication specifications of this air conditioner. For the communication type and the model names such as each unit or remote controllers, refer to the following table. TU2C-Link Communication type (U series and future models)

  • Page 25: Product Summary

    Product summary 1-1. Outdoor unit Power supply Corresponding HP Single-phase 220-240V (50Hz) MCY-MUG0401HSW MCY-MUG0501HSW MCY-MUG0601HSW Cooling capacity (kW) *1 12.1 14.0 15.5 Heating capacity (kW) *1 12.5 16.0 17.0 *1 Rated conditions Cooling: Indoor air temperature 27 °C DB / 19 °C WB, Outdoor air temperature 35 °C DB Heating:Indoor air temperature 20 °C DB, Outdoor air temperature 7 °C DB / 6 °C WB...

  • Page 26: Branching Joints And Headers

    1-3. Branching joints and headers Model type Model name Appearance Y-shape branching joint RBM-BY55E 4-branching header RBM-HY1043E 8-branching header RBM-HY1083E 1-4. PMV kit Model type Model name Appearance 007 to 014 types RBM-PMV0361U-E 015 to 027 types RBM-PMV0901U-E 1-5. Shut-off Valve unit Model type Model name Appearance...

  • Page 27: Construction Views

    Construction views...

  • Page 28: Wiring Diagram

    Wiring diagram...

  • Page 29: Parts Rating

    Parts rating 4-1. Outdoor unit Name Model Specification Compressor DX422A3F-2CM Output: 5.60 kW 4-way valve coil STF-H01AJ2605A1 AC220-240V, 50/60Hz SV2, SV4, SV6 valve coil FQ-G593 AC220-240V, 50/60Hz Pulse motor valve coil PQ-M10012-000231 DC12V Pressure sensor (For high pressure) NSK-BH038D-725 DC5V 0-3.73MPa Pressure sensor (For low pressure) NSK-BH010D-725 DC5V 0-0.98MPa...

  • Page 30: Leak Detector

    4-5. Leak Detector Model type Parts Name Model Specification Refrigerant sensor module FIS-5084 DC5V TCB-LD1UPE P.C. board MCC-1782 4-6. Parts layout in outdoor unit...

  • Page 31: Parts Layout In Inverter Assembly

    4-7. Parts layout in inverter assembly...

  • Page 32: Outdoor (Inverter) Print Circuit Board

    4-8. Outdoor (inverter) print circuit board 4-8-1. Interface P.C. board (MCC-1779) SW 04, 05, 06 7-segment LED CN508 CN510 CN513 CN511 CN509 CN512 SW 01, 02, 03 TD CN502 TS1 CN505 SW101 SW102 SW103 TO CN507 SW104 SW105 SW106 TE CN520 TL1 CN523 CN300 PMV output...

  • Page 33: Ipdu P.c. Board (Mcc-1690)

    4-8-2. IPDU P.C. board (MCC-1690) Power supply High-pressure Input (Neutral) switch input CN02(White) CN500(Red) Power supply Input (Live) CN01(Black) Compressor output W-phase Fan output CN203(Black) CN300(White) Compressor output V-phase CN202(White) Compressor output U-phase CN201(Red) UART communication CN852(White)

  • Page 34: Noise Filter P.c. Board (Mcc-1706)

    4-8-3. Noise filter P.C. board (MCC-1706) CN02 (White) CN04 (White) Power supply Line filter Power supply CN03 (Black) CN08 (White) CN01 (Black) Power supply Power supply Power supply...

  • Page 35: Parts Layout In Shut-Off Valve Unit, Battery Kit And Leak Detector

    4-9. Parts Layout in Shut-off Valve unit, Battery kit and Leak Detector 4-9-1. Parts Layout in Shut-off Valve unit Model: RBM-SV1121HUPE RBM-SV1801HUPE Pulse motor valve coil (PAM-MD12TF-305) Pulse motor valve coil (PAM-MD12TF-306) P.C. board (MCC-1771) 4-9-2. Part layout in Battery kit Model: TCB-BT1UPE Battery Assembly (Ni-MH)

  • Page 36: Part Layout In Leak Detector

    4-9-3. Part layout in Leak Detector Model: TCB-LD1UPE P.C. board (MCC-1782) Refrigerant sensor module (FIS-5084)

  • Page 37: Print Circuit Board Of Shut-Off Valve Unit, Battery Kit And Leak Detector

    4-10.Print circuit board of Shut-off Valve unit, Battery kit and Leak Detector 4-10-1. Shut-off Valve unit P.C. board (MCC-1771) PMV output CN602 PMV output PMV output CN603 CN601 Battery kit CN521 CN521 Indoor unit (Sub BUS communication) CN200 MCU oepration LED / Indoor communication LED D501 / D502 D501...

  • Page 38: Battery Kit P.c. Board (Mcc-1772)

    4-10-2. Battery kit P.C. board (MCC-1772) Battery CN21 MCU LED D101 Charge LED Discharge LED FS unit & Shut off CN01...

  • Page 39: Leak Detector P.c. Board (Mcc-1782)

    4-10-3. Leak Detector P.C. board (MCC-1782) Alarm lamp Buzzer stop button D01〜D05 SW02 Buzzer stop button SW03 Mulfunction LED Reset button Operation LED SW01...
  • Page 40 Output1 CN64 CN64 Refrigerant leak Indoor unit sonsor (Sub BUS communication) CN501 CN41 CN41 Output2 CN65...

  • Page 41: Refrigerant Piping Systematic Drawing

    Refrigerant piping systematic drawing Outdoor unit Sensor(TO) Heat exchanger Sensor(TE) 4-Way valve Sensor (TS1) Check Solenoid valve valve (SV2) Solenoid valve (SV6) Capillary tube Capillary tube Check Strainer joint Check joint Pulse High pressure motor Solenoid sensor valve valve (SV4) High pressure Pressure switch...
  • Page 42 Explanation of functional parts Functional part name Functional outline (Hot gas bypass) (Connector CN311 : White) 1) Low pressure release function 2) High pressure release function 3) Gas balance function during stop time 4) Hot gas bypass into accumulator (Start compensation valve of compressor) Solenoid valve (Connector CN312: Red) 1) For gas balance start...

  • Page 43: Control Outline

    Control outline Outdoor unit Item Description of operation, numerical data, and other information Remarks 1. Pulse motor 1) During air conditioner operation, the pulse count of a PMV (pulse motor valve) valve (PMV) is controlled between 30 and 500. control 2) During cooling, the PMV opening is controlled on the basis of measurements provided by the TL1 temperature sensor and the PD pressure sensor (subcool control).
  • Page 44 Item Description of operation, numerical data, and other information Remarks 4. Refrigerant / 1. During cooling operation, this function is executed to regularly to recover the Oil recovery refrigerant / oil from the indoor units and connecting pipe-work back to the outdoor unit.
  • Page 45 Item Description of operation, numerical data, and other information Remarks 6. Release 1. SV2 gas balance control valve control This control function is aimed at achieving gas balance by opening SV2 while compressor is turned off so as to reduce its startup load the next time it is turned on. 1) Control conditions •...
  • Page 46 Item Description of operation, numerical data, and other information Remarks 6. Release 7. SV6 cooling bypass control valve control 1) Control conditions (Continued) • This control is always provided except during periods of defrosting , stoppage or thermostat OFF. 2) Control details •...
  • Page 47 Item Description of operation, numerical data, and other information Remarks 8. A3-IPDU 2. Heat sink temperature detection control • IPDU is provided with a TH sensor. control 1) This control performs the IGBT overheat protection by the detection of the TH sensor in Module Q201 for compressor driven in IPDU.
  • Page 48 <Other points to note> Cooling operation under low outside temperature conditions 1) If pressure falls to extremely low levels, indoor units may be shut down via freeze prevention control based on the indoor TC sensor. 2) If pressure falls to extremely low levels, frequency may be reduced via cooling capacity control. 3) When the discharge temperature sensor reading falls below 60 °C, the frequency may be increased above the level called for by the command received from the indoor unit.

  • Page 49: Applied Control And Functions

    APPLIED CONTROL AND FUNCTIONS 7-1. Method to Set Outdoor Unit Function Code No. (O.DN ) The settings can be changed by operating the switches on the interface board. In the TU2C-Link communication system, it can also be done by operating the wired remote controller. Applicable controls setup (settings at the site) Basic procedure...
  • Page 50 When switching from the wired remote controller Basic procedure Be sure to stop the air conditioner before making settings. (Change the setup while the air conditioner is not working.) <RBC-ASCU11*> 2,4,5 Push and hold menu button and [ ] setting button simultaneously for 10 seconds or more. •...
  • Page 51 ✱✱ Push the menu button to make Code No. [ ] flash. ✱✱ ] with [ ] setting button. Change Code No. [ ✱✱✱✱ Push the menu button to make Set data [ ] flash. ✱✱✱✱ ] with [ ] setting button. Change Set data [ Push OFF timer button to complete the set up.
  • Page 52 <RBC-AMSU5*> Push the [ MENU] button to display the menu screen. Push and hold the [ MENU] button and the [ V] button at the same time to display the “Field setting menu”. Field setting menu(1/2)  Push and hold the buttons for more than 1.Test mode 4 seconds.
  • Page 53 Refer to the Installation Manual supplied with the outdoor unit or service manual for DN setting details about the Code(DN) and Data. Code Data (DN) O.DN Push the [ MENU] button to set the other 0000 Code(DN) and Data. After “Continue?” is displayed on the screen, push the Return Yes”...
  • Page 54 Outdoor Unit Function Code No. (O. DN) Table (Includes Functions Needed to Perform Applied Control on Site) Item Description At shipment Type Setting Code range : 0000 to 0255 According to type Model name O.DN [003] Undefined 0000 MCY-MUG0401* 0001 MCY-MUG0501* 0002 MCY-MUG0601*...

  • Page 55: Applied Control Of Outdoor Unit

    Outdoor Fan High Static 0000 : Usual 0001 : High Static Pressure 0000 : Usual Pressure Shift Operation Operation standby Heating 0000 : None 0001 : Standby 0000 : None standby Night operation (sound reduction) 0000 : mode 1 (50 dB) 0001 : mode 2 (47 dB) 0000 : mode 1 control mode setting...

  • Page 56: Priority Operation Mode Setting

    7-2-2. Priority Operation Mode Setting Purpose/characteristics This function allows switching between priority cooling and priority heating. Four patterns of priority operation mode setting are available as shown in the table below. Select a suitable priority mode according to the needs of the customer. Setup CAUTION In the case of the priority indoor unit mode, it is necessary to set up the specific indoor unit chosen for priority operation...
  • Page 57 Each time [ ] setting button is pushed, indoor unit numbers in the group control change cyclically. Select the indoor unit to change settings for. • The fan of the selected indoor unit runs . The indoor unit can be confirmed for which to change settings Push OFF timer button to confirm the selected indoor unit.
  • Page 58 <RBC-AMSU5*> Display example of Field setting menu(2/2) AMS*5* 6.Setting timer operation mode 7.DN setting Reset power consumption data 9.Notice history Return Push the [ MENU ] button to display the menu screen. Push and hold the [ MENU ] button and the [ button at the same time to display the “Field setting menu”.
  • Page 59 Push the [ MENU] button to set the other DN codes, then “Continue?” is displayed on the screen. DN setting Continue? Return Push the “ No setting operation. “ No” [ F2] button to finish the ” appears on the screen for a while, then the screen returns to the “Field setting menu”...

  • Page 60: Applied Control Of Outdoor Unit By Optional P.c. Board

    7-2-3. Applied control of outdoor unit by optional P.C. board 7-2-3-1. Optional P.C. board of outdoor unit installation Holes for installing supports are provided on the back face of interface P.C. board attachment plate. Use the supports to install the optional P.C.
  • Page 61 7-2-3-2. Applied Control of Outdoor Unit Optional control P.C. boards provide access to a range of functions as listed below. Control P.C. board to be Outdoor unit interface P.C. board setting* Outdoor unit for used Function control P.C. TCBP- TCBP- TCBP- Connector DIP SW...
  • Page 62 Layout of Outdoor Unit Interface P.C. Board * For Applicable controls, switch the DIP SW on the P.C. board or set the outdoor unit O.DN. CN508 CN510 CN513 CN511 CN509 CN512 SW101 SW102 SW103 SW104 SW105 SW106 7-2-3-3. Power peak-cut Control (Standard) (1) Four-core cable support L1: Display lamp ensuring power peak cut control Outdoor unit...
  • Page 63 Operation The demand request signal from the outside restricts the maximum capability (or maximum electric power) of an outdoor unit. L1: Power peak-cut control indication lamp SW1: Power peak-cut control ON switch (ON as long as target power peak-cut control has been reached or exceeded, normally OFF)*1 SW2: Power peak-cut control OFF switch (OFF as long as target power peak-cut control has not been reached or exceeded, normally ON)*1 *1 The inputs of SW1 and SW2 can be either pulse (100 msec or longer) or step signals.
  • Page 64 (2) Two-core cable support Setting SW105 bit1 on I/F P.C.board of the outdoor unit to ON allows ON/OFF power peak-cut control to be switched using [ON] terminal input (SW1) alone. Outdoor unit L1: Display lamp ensuring power peak cut control Locally procured Outdoor unit Optional PCB...
  • Page 65 When connecting a conductive load (e.g. relay coil) to the display relay load, insert a surge killer CR (for an AC power supply) or a diode for preventing back electromotive force (for a DC power supply) on the bypass circuit. Note 2: COM contact specifications •...
  • Page 66 Outdoor unit DN Outdoor unit DN Code Outdoor unit DN Code (O.DN) (O.DN) Code (O.DN) [00E] [00E] [00E] 100% 100% 100% 4 (factory default) 8 (factory default) 15 (factory default) (forced stop) (forced stop) (forced stop) Note 1: Specifications of display relay contact •...
  • Page 67 The power peak-cut control regulates the outdoor unit capacity so that it does not exceed the upper limit value (X%,Y%,Z% of the criteria value for a maximum power set in (2)) set by [00E] [00F] [010] of (O.DN). (e.g.) If the criteria value of maximum heating power during 80% demand control is set to 14.00kW, the upper limit control becomes 11.2kW (14.00kW×80%=11.20kW), the outdoor unit output is controlled so that the power consumption does not exceed 11.20kW.
  • Page 68 Operation The system is started/stopped from the outdoor unit. Terminal Input signal Operation It does not matter whether the state is ON or 100ms OFF after 100 msec from the signal input. COOL Turns on all indoor units (SW1) Batch- operation accepted 100ms...
  • Page 69 Mode setting mode 1 mode 2 mode 3 Model MCY-MUG Outdoor DN cord (O.DN [027]) setting 0000 0001 0002 Night operation sound reduction dB(A) 0401* (COOL/HEAT) 0501* Capacity 0601* (COOL/HEAT) * Position of noise measuring device: 1 m from the front face of the set and 1.5 m above ground (anechoic sound) •...
  • Page 70 Outdoor DN Code Details of Processing (O.DN) Unauthorized indoor units in a mode other than the P.C.board selection modes are not treated as priority (thermostat OFF state). Input Signal P.C. board Remote Operation State COOL COOL control selection mode (SW1) (SW1) Normal Follow the remote controller.
  • Page 71 7-2-3-9. Trouble/Operation Output Locally procured Outdoor unit (See “NOTE”) Optional PCB Outdoor unit interface PCB OUTPUT1 OUTPUT2 CN511 PJ20 OUTPUT3 Shield wire Operation In-operation output: An in-operation indication signal is output as long as at least one indoor unit is in operation in the line.

  • Page 72: Notice Code

    7-3. Notice Code • Notice Code is a function only in TC2U-Link communication. • When the outdoor or indoor unit detects its conditions requiring caution or maintenance, this function notices you to check your units with the spanner icon (Notice code icon) on the wired remote controller or central controller display.
  • Page 73 2. Notice Code Display (7-segment display) on Outdoor Interface P.C. Board The notice codes detected or issued from the outdoor unit can be confirmed with 7-segment display on the P.C. board. (The notice codes detected or issued from the other outdoor unit cannot be displayed.) (1) Displaying the notice code being issued now Setting the SW01, SW02, SW03 to 1, 1, 14 respectively displays the notice code being issued from the outdoor unit on the 7-segment display 7-segment display [n.

  • Page 74: Night Operation (Sound Reduction Control)

    7-4. Night operation (Sound reduction control)  Overview T he 'Night operation' function of RBC-AMSU5* remote control can be used. It reduces the sound of outdoor unit putting priority on quietness during night time operation, etc., and the operation time can be set. ...
  • Page 75 • The 'Night operation can be set by a number of remote controls. It operates according to the start time and the end time set by each remote controls. 22:00 06:50 No.1 Indoor unit RC Start Night operation Start/End time 12:00 13:00 No.2 Indoor unit RC...

  • Page 76: Test Operation

    Test operation 8-1. Procedure and summary of test operation A test operation is executed with the following procedure. When problems or an error occurs at any step, remove the causes of the problem or error referring to “9 Troubleshooting.” Check basic items, mainly the installation work. Checks before test operation Be sure to enter the check results in checklist 1 and 2.

  • Page 77: Check Items Before Test Operation (Before Powering

    8-2. Check items before test operation (before powering-on) Prior to the test operation, check the following items to verify there are no problems with the installation work. Main check items for electric wiring The communication system differs from previous period model air conditioners. Check wiring points again carefully.
  • Page 78 In the case that a central control system is connected (before address setup) Central remote controller To other refrigerant line Other refrigerant line SW101 SW102 SW101 SW102 Outdoor unit SW100 SW100 To indoor unit Indoor unit Shut-off Leak Remote Remote Remote Valve unit Detector...
  • Page 79 Checklist 1 Using Checklist 1, check that there are no problems with the installation work. Is the capacity of the circuit breaker Outdoor unit Indoor unit (Earth leakage breaker) appropriate? Is the gauge of the Outdoor unit Indoor unit power cable correct? Is the control communication line correct? Indoor-outdoor connection terminals (Uv) Central control system connection terminals (Uh)
  • Page 80 Checklist 2 Calculate the additional amount of refrigerant from the following: Additional refrigerant Corrective amount of Additional refrigerant Compensation Real length of charge amount per 1 m refrigerant depending charge amount at by outdoor HP liquid pipe liquid pipe on the indoor units local site (Table 3) (Table 1)

  • Page 81: Check At Main Power-On

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

  • Page 82: Address Setup

    8-4. Address setup This product requires address setup before operation. Follow this procedure for address setup. 8-4-1. Precautions (1) Address setup is not performed simply by turning on the power supply. (2) For indoor units, address setup can be done either by manual address setup or by automatic address setup: Automatic address setup: Setup from SW06 on the interface P.C.
  • Page 83 Interface P.C. board Push switch Push switch SW04 SW05 SW06 7-segment 7-segment D600 D601 D602 D603 D604 display [B] display [A] SW01 SW02 SW03 Rotary switches ◆ Before address setup It is necessary to set the DIP-SW on the outdoor unit interface P.C. board. Follow the steps below to set the DIP switch on the outdoor unit interface P.C.
  • Page 84 2. Line (system) address setting For the central control among two or more refrigerant lines (Example) controlling a single refrigerant line centrally controlling 2 or more refrigerant lines centrally Outdoor Outdoor Outdoor Outdoor Central Central Central controller controller controller System wiring Indoor Indoor Indoor...
  • Page 85 Switch setting (setting example when controlling 2 or more refrigerant lines centrally) Outdoor units (setting manually) * The items in bold font must be set manually. Factory Outdoor unit’s interface P.C. board Outdoor unit Outdoor unit Outdoor unit default SW101 Bit2-4, SW102 Bit1-4 (Line (system) address) SW100 Bit1 (Termination resistor of central control...

  • Page 86: Address Setup Procedure

    8-4-3. Address setup procedure 1. Automatic address setup Follow the steps below to set up the address by the automatic operation. Only when the addresses of all indoor units in the same system are not set, the following addresses will be set automatically.
  • Page 87 2. Manual address setting with the remote controller With indoor wiring work completed and outdoor wiring work not done—in cases where indoor unit addresses are decided in advance from the wired remote controller, or where addresses are change after address setup. (Wiring example of 2 refrigerant lines) Line 2 Line 1...
  • Page 88 <RBC-ASCU1*> 6, 9, 12 4, 5, 7 8, 10, 11 4, 5, 7 8, 10, 11 Pair the indoor unit to set and the remote controller one-to-one. Turn on the power. Push and hold menu button and [ ] setting button simultaneously for 10 seconds or more. After a while, the display flashes as shown in the figure.
  • Page 89 Individual : 0000 Header unit : 0001 In case of Follower unit : 0002 group control Push the Timer off button. ✱✱✱✱ (When the display changes from [ ] to Set data [ ] flashing, the setup is completed.) — — When all the settings have been completed, push ON/OFF button to determine the settings.
  • Page 90 When all the settings have been completed, push ON/OFF button to determine the settings. flashes and then the display content disappears and the air conditioner enters the normal stop mode. “ ” (The remote controller is unavailable while “ ” is flashing.) To change settings of another indoor unit, repeat from Procedure 1.
  • Page 91  Confirming the indoor unit addresses and the position of an indoor unit using the remote controller ◆ Confirming the numbers and positions of indoor units To see the indoor unit address of an indoor unit having location data. In the case of individual units (the indoor unit corresponds to the wired remote controller one to one), or in the case of one group control unit.
  • Page 92 (Execute it while the units are stopped.) The indoor unit numbers in a group are indicated one after another. The fan and louvers of the indicated units are activated. Push and hold the buttons at the same time for more than 4 seconds. •...
  • Page 93 To check all the indoor unit addresses using an arbitrary wired remote controller. (When communication wirings of 2 or more refrigerant lines are interconnected for central control) <RBC-AMT***> There is no such function in this remote controller. (Execute it while the units are stopped.) You can check indoor unit addresses and positions of the indoor units in a single refrigerant line.
  • Page 94  Procedure to setup address 65 to 128 from the remote controller Under TCC-Link settings (factory shipping settings), setting addresses from 65 and above are not available from the remote controller. Setting the indoor address or the zone address to 65 to 128 must be done under TU2C-Link settings, which can be performed by the procedures shown below.
  • Page 95 Method 2 (Setting the address manually from the remote controller) Follow the procedure below if setting the indoor unit address manually from the remote controller is desired due to the indoor address not being set (factory default) and automatic address setting not being possible for reasons such as the outdoor unit installation not being installed.
  • Page 96 <Setting the indoor termination resistor manually (if the farthest room is known)> 12) Set the Indoor Unit Function Code I.DN [1FC] to "0001" (indoor termination resistor ON). 13) After installing the outdoor unit, set the Outdoor Unit Function Code O.DN [82] to "0003" (TU2C-Link) for the outdoor unit.
  • Page 97  Resetting the address (Resetting to the factory default (address undecided)) Method 1 Clearing each address separately using a wired remote controller. Set the system address, indoor unit address and group address to “00Un” using a wired remote controller. (For the setting procedure, refer to the address setting procedures using the wired remote controller on the previous pages.) * Address not set will be either "00Un"...
  • Page 98 Communication setting This product need setting TU2C-Link communication after the address setting. CAUTION • Be sure to complete the address setting before communication setting. • It may takes about 1 to 3 minutes to address one refrigerant line. • Settings on the outdoor unit are required for communication setting. (Communication setting is not started simply by turning on the power.) •...
  • Page 99 *1 : Only the indoor unit that has the longest wiring length from the outdoor unit. The indoor address of the indoor unit with the termination resistor turned on is confirm the items in "8-7-12. Monitor Function of Remote Controller Switch". Interface P.C.
  • Page 100  Procedure to clear the communication method (restoring the factory default [TCC-Link communication settings]) • This is a function in which the communication method setting for all the outdoor units and indoor units (every outdoor unit connected to the Uc line and every indoor unit connected to the Uv line) will reset to the TCCLink communication settings.
  • Page 101  In the case of an increase in address-undefined indoor units (extension, etc.) To set up the indoor address of a unit with an address that is undefined due to the extension of indoor units or replacement of P.C. board, etc., follow the methods below. 1.
  • Page 102 3. Communication setting (Auto setting) Setup procedure (1) Turn on indoor units first, and then turn on outdoor units. (2) Set the rotary switch of the interface P.C. board on the outdoor unit to SW01=[2], SW02=[16] and SW03=[2]. (3) The 7-segment display switches between “c.c. b p s” and “c.c. 0” at 1-second intervals. (4) Push and hold SW04 for more than 5 seconds.
  • Page 103  Procedures for adding an indoor unit with communication method and address already set In cases of adding a new indoor unit with the TU2C-Link setup or address setup already completed due to relocation etc., perform the setup 1) to 3) below. 1) Communication method •...

  • Page 104: Check After Address Setup When Central Control System Is Connected

    8-4-4. Check after address setup when central control system is connected When the central control system is connected, check that the following setup has finished after address setup. Central remote controller Line address = 2 Line address = 1 To other refrigerant line Other Outdoor unit Outdoor...

  • Page 105: Setting When Connecting Safety Equipment

    8-4-5. Setting when connecting safety equipment  Setting when connecting indoor units to Shut-off Valve unit, and when connecting safety equipment [Cautions to connection of indoor unit] • When connecting the indoor units to Shut-off Valve unit, it is necessary to set up indoor DN CODE No.. Be sure to set up indoor DN CODE No.
  • Page 106 2,4,5 (Execute it while the units are stopped.)  How to set up the indoor DN CODE No. [107] (Safety measures) • It is necessary to set up safety measures. • If the settings and actual connections are different, the system will not be able to operate. The 7-segment display on the interface P.C.
  • Page 107 Push and hold menu button and [ ] setting button simultaneously for 10 seconds or more. (If 2 or more indoor units are controlled in a group, the first indicated UNIT No. is that of the head unit.) Each time [ ] [ ] setting button is pushed, indoor unit numbers in the group control change cyclically.
  • Page 108 ◆ [ Set up example ] [ 14 ] : Group address 0 : Individual 1 : Header unit 2 : Follower unit [ FE ] : Shut-off Valve unit address • Should not be duplicate in one system. • Factory default : Un [107] : Safety measures 0 : No safety equipment is required 1 : Pump-down operation...
  • Page 109 2. In case of connecting Leak Detectors to each indoor units. Indoor unit [ 14 ] [ FE ] It is not necessary to set up. [ 107 ] [ 108 ] 3. In case of connecting one indoor unit and Lead Detector to Shut-off Valve unit. Indoor unit [ 14 ] [ FE ]...
  • Page 110 4. In case of connecting one group operation of indoor units and one indoor unit to no safety equipment and two remote controller. Indoor unit [ 14 ] [ FE ] It is not necessary to set up. [ 107 ] [ 108 ] It is not necessary to set up.
  • Page 111 6. In case of connecting one group operation of indoor units and Leak Detectors to Shut-off Valve unit. Indoor unit [ 14 ] [ FE ] [ 107 ] 1 or 2 1 or 2 [ 108 ] 0 or 1* 0 or 1* *1: Code No."FE"...
  • Page 112 Incorrect connection 2. Group setting of indoor units across Shut-off Valve unit is not possible.
  • Page 113 (1) Installation conditions for each requirement • To comply with the requirements of enhanced tightness refrigerating systems of IEC 60335-2-40, the system is equipped with Shut-off Valve unit, Leak Detector and Battery kit. And each systems have the appropriate safety systems in according to the system specifications.
  • Page 114 [1] [Confirmation of installation space and floor area] • Make sure that each indoor unit meet the installation height and floor area specified by indoor unit type and the total system refrigerant amount. • Please refer to the numerical values of line A and line B in the graphs below. Line B Line A Other than lowest...
  • Page 115  Line A  Line B Total system refrigerant [kg] Total system refrigerant [kg] Minimum Minimum floor area floor area Ceiling mounted type Wall mount and under Ceiling mounted type Wall mount and under (include duct type) ceiling type (include duct type) ceiling type 0.84 0.69...
  • Page 116 WARNING • The total amount of refrigerant in the system must be less than or equal to the maximum allowable total amount of refrigerant. The maximum allowable amount of refrigerant = 13.1 [kg]. • Keep the installation height according to the indoor unit type. Ceiling-mounted unit (include Duct type.) : 2.2 m or more.
  • Page 117 WARNING • For Leak Detector to function, the unit shall be powered on at all times after installation, except during service. • If LFL area is (c), install Battery kit in each applicable Shut-off Valve unit. They can shut-off the refrigerant by Battery kits even in the event of a power failure. (Make sure there are no leaks before use as charging may not be in time during a continuous system power off.) NOTE •...
  • Page 118 For the leak detector installation of R32 air conditioning system, check the following before installing. WARNING • Leak Detector used as a safety device for the air conditioning system shall be used the specified Toshiba optional product. • Leak Detector installation shall be complied with the following requirements.
  • Page 119 [Installation positions of Leak Detector] Indoor Unit Indoor Unit > Leak Detector > < 10 m* < 300 mm < 300 mm * It must be placed within a horizontal distance of 10 meters and on the wall in the room where the indoor unit is installed.
  • Page 120 [The examples for safety device installations] The location of Leak Detector varies depending on the safety system and the room. Incorrect Correct Case • Install Leak Detector in same room as the connected indoor unit. • Group setting of indoor unit across Shut-off Valve unit is not possible •...
  • Page 121 [4] [Shut-off valve unit installation] For Shut-off Valve unit installation, see Installation Manual included in Shut-off Valve unit. The position where Shut- off Valve unit can be installed differs depending on the indoor unit, the setting of safety measures (pump down or individual shut-off), etc.
  • Page 122 ◆ The connection pipe length on the downstream side of the Shut-off Valve is 150m. Installation Installation not permitted not permitted l l a l l a Minimum floor area A Minimum floor area A Ceiling mounted type (include Duct type) Wall mount and under ceiling type ◆...
  • Page 123  Installation position of Shut-off valve unit in case of recovery by pump down ◆ Ceiling mounted type (include Duct type) ◆ Wall mount and under ceiling type Total connectable pipe length to the downstream side Total connectable pipe length to the downstream side Minimum Minimum of Shut-off Valve unit [m]...
  • Page 124  Installation position of Shut-off Valve unit in case of individual shut-off ◆ Ceiling mounted type (include Duct type) ◆ Wall mount and under ceiling type Minimum Connectable pipe length to the downstream side of Minimum Connectable pipe length to the downstream side of floor area Shut-off Valve [m] floor area...
  • Page 125  Shut-off Valve unit Installation When Shut-off Valve unit is installed , the allowable installation position differs depending on the total amount of refrigerant. The installation position shall be determined according to the following formula. /3 ≧ (m ◆ - 8) × 14 φ9.52 φ6.35 　...
  • Page 126 [5] [To determine the limit on the amount of additional refrigerant] Determine the smallest room area to calculate the total allowable refrigerant charge limit in the system. The area of the smallest room being served by the system is decided in the following contents to determine the maximum allowable total charge of the system.
  • Page 127 Note) The requirements for the upper opening can be met by a drop ceiling, ventilation ducts, or similar arrangements that provide airflow between connected rooms. (4) Connect both the air inlet and outlet directly to the same room. (5) Do not use a space such as a false ceiling as the air inlet or the outlet of the duct. (6) There shall be no auxiliary device (for example, an electric switch device whose surface is 700°C) that can be a potential ignition source in the duct work.
  • Page 128 Safety measure selection flow Based on the installation conditions calculated above, determine the installation specifications according to the following safety measure selection flow. Start Calculate the minimum floor space A Installation space. Determine the Installation height of the indoor unit. Calculate the amount of allowable refrigerant for determining the necessity of safety requirement.

  • Page 129: Troubleshooting In Test Operation

    8-5. Troubleshooting in test operation If there are phenomena such as the output of a check code or the remote controller is not accepted when powered- on after wiring work or during address setup operation, the following causes are considered. 8-5-1.

  • Page 130: Outdoor Unit)

    Check the code Outdoor unit displayed on the 7-segment Cause Counter measures indoor remote display controller • When the safety measures settings for indoor • Correct the connection of the indoor unit. units connected to the same Shut-off Valve unit •...

  • Page 131: Indoor Remote Controller)

    8-5-3. No Remote Controller Response without Check Code (There is no display of a check code on the 7-segment display on the interface PC board of the Outdoor unit, although there is indoor unit that is not accepting operation from the indoor remote controller) Indoor remote Outdoor unit controller...

  • Page 132: Connected Indoor/Outdoor Unit Quantity Check

    8-5-4. Connected Indoor/Outdoor Unit Quantity Check In checking the number of connected outdoor units and connected indoor units after address setup, a lower number of connected units is displayed. (There are outdoor / indoor units that do not operate in a test operation.) Status Cause Counter measures...

  • Page 133: Test Operation Check

    8-6. Test operation check 8-6-1. Fan check START Check code appears Push the Start / Stop button on the remote controller. When a check code has been displayed on the remote controller, remove the cause of the error, referring to "Check code and check position displayed on Check code remote controller and outdoor unit."...

  • Page 134: Inspection Mode (Safety Measures)

    8-6-2. Inspection mode (safety measures) ◆ When connecting a Shut-off Valve unit, perform the following detailed inspection mode. This mode verifies that safety measures are properly connected. The detailed inspection mode is performed on the interface P.C. board of the outdoor unit. Detailed inspection mode is completed in about 30 minutes.
  • Page 135 ◆ When using Leak Detector, perform the following simple inspection mode. The simple inspection mode is performed with Leak Detector. The simple inspection mode should be performed for each Leak Detector. If you run a simple inspection mode while normal operation, this operation stops. The simple inspection mode can be performed during the detailed inspection mode.

  • Page 136: Cooling / Heating Test Operation Check

    8-6-3. Cooling / Heating test operation check The cooling / heating test operation check can be performed on both the indoor remote controller and the outdoor unit interface P.C. board. (1) Test operation start / stop operation Test operation from the indoor remote controller •...

  • Page 137: Pump-Down Test Operation

    8-6-4. Pump-down test operation ◆ Perform pump-down test operation by the following operation. NOTE When performing this operation, be sure to perform "8-6-2. Inspection mode (safety measures)" and "8-6-3. Cooling / Heating test operation check" in advance. <Pump-down test start operation> 1.
  • Page 138 Wireless remote controller <Overview of test run operations using the wireless remote controller> Turn on the power of the air conditioner. Cooling test run: When power is turned on for the first time ON/OFF → 17°C → 18°C → 17°C → 18°C → 17°C after installation, it takes approx.
  • Page 139 (2) Test operation START Refer to "Test operation procedure" Test operation for one indoor unit of the indoor remote controller. The operation does not start for approximately 3 minutes after Operation starts powering-on or stopping operation. Note: After powering-on, it may require up to 10 minutes to start the operation due to the initial communications of the system.
  • Page 140 Note 1: Criteria for the difference between suction and discharge temperatures (1) Cooling operation After operating for a minimum of 30 minutes in “COOL” mode, if the ΔT dry bulb temperature difference between suction and discharge air of the indoor unit is 8 °C or more, it is normal. (2) Heating operation After operating for a minimum of 30 minutes in “HEAT”...

  • Page 141: Service Support Function

    8-7. Service support function 8-7-1. Check function for connecting of refrigerant and control lines This function is provided to check misconnection of the refrigerant pipes and the control transmission line (Wiring over lines) between indoor unit and outdoor unit by using the switch on the interface P.C. board of the outdoor unit. However, be sure to check the following items prior to executing this check function.
  • Page 142 On rotations of outdoor fans: Outdoor fans may rotate slowly to control pressure when cooling with low outer air temperature or heating with excessive load. For control content, also refer to items in Section 6, “Control Outline: Outdoor Unit, Outdoor Fan Control.”...

  • Page 143: Function To Start / Stop (On / Off) Indoor Unit From Outdoor Unit

    8-7-2. Function to start / stop (ON / OFF) indoor unit from outdoor unit The following functions of the indoor unit can start or stop by the switches on the interface P.C. board of the outdoor unit. Function Outline Setup / Release 7-segment display Cooling test Changes the mode of all the...
  • Page 144 NOTE 1) This start / stop function only sends the signals from the outdoor unit to the indoor unit, such as start, stop, operation mode, etc. It does not resend the signals even if the indoor unit does not follow the sent signals. NOTE 2) The above controls are not used during abnormal stop.
  • Page 145 (1) Cooling test operation function This function is provided to change collectively the mode of all the indoor units connected to the same system for the cooling test operation mode, by using switches on the interface P.C. board of the outdoor unit. <Operation procedure>...
  • Page 146 (2) Heating test operation function This function is provided to change collectively the mode of all the indoor units connected to the same system for the heating test operation mode, by using switches on the interface P.C. board of the outdoor unit. <Operation procedure>...
  • Page 147 (3) Fan test operation function This function is provided to change collectively the mode of all the indoor units connected to the same system for the fan test operation mode by using switches on the interface P.C. board of the Outdoor unit. <Operation procedure>...
  • Page 148 (4) Batch start / stop (ON / OFF) function This function is provided to start / stop collectively all the indoor units connected to the same system by using switches on the interface board of the outdoor unit. <Operation procedure> Be sure to turn on the power at indoor Power ON side before power-ON of outdoor unit.
  • Page 149 (5) 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.

  • Page 150: Check Code Clearing Function

    NOTE) The individual test operation returns to the normal operation after 60 minutes. • The test run is a forced run that ignores the set temperature. Be sure to stop the test run after work, paying attention to the room temperature. •...
  • Page 151 (2)Clearing check code by using switches on the interface P.C. board of the outdoor unit Using the switches on the interface P.C. board of the header unit, this function is to clear the currently detected check code for each refrigerant circuit system without resetting the power supply. Check codes in both outdoor and indoor units are once cleared, and check code detection is performed again.

  • Page 152: Remote Controller Distinction Function

    8-7-4. Remote controller distinction function This function is provided to distinguish the remote controller connected to the indoor unit from the outdoor unit for a refrigerant circuit system by using switches on the interface P.C. board of the outdoor unit. <Distinction procedure>...

  • Page 153: Pulse Motor Valve (Pmv) Forced Open/Close Function In Indoor Unit

    8-7-5. Pulse Motor Valve (PMV) Forced Open/Close Function in Indoor Unit This function is provided to open or close forcedly PMV for 2 minutes in all the indoor units by the switch operation on the interface P.C. board of the outdoor unit. This function is also used to open PMV fully when turning off the power and executing an operation.
  • Page 154 [Method of operating solenoid valve (forced ON/OFF) (1) After starting this control, SV2 will come ON. [H.r 2] will be displayed in the 7-segment display in the solenoid valve display screen. (2) Any desired solenoid valve can be forced ON/OFF by changing the setting No. of the rotary switch [SW02]. The following table shows the forced-ON/OFF/normal control patterns for each solenoid valve.
  • Page 155 [Cancelation method] To cancel (end) control of this function, perform one of the following methods. The solenoid valve and pulse motor valve (PMV) will return to normal control. • Press the push switch [SW05] for one second or longer. • Set the rotary switch [SW01] to other than [2].

  • Page 156: Pulse Motor Valve (Pmv) Forced Open / Close Function In Shut-Off Valve Unit

    8-7-7. Pulse motor valve (PMV) forced open / close function in Shut-off Valve unit. The pulse motor valves (PMV-L , PMV-S) of the Shut-off Valve unit can be forced to full-open and full-closed for 30 minutes. Use this function to check for PMV malfunctioning, clogging, misconnection, and so forth. [Control start method] (1) Set SW01 [11] and set SW02, SW03 to indoor address No.

  • Page 157: Fan Operation Check In Outdoor Unit

    8-7-8. Fan operation check in outdoor unit This function is provided to check the fan operation of the outdoor unit by using switches on the interface P.C. board in the outdoor unit. The frequency of the fan speed can be controlled by setting of the switches. Use this function to check the operation or abnormal sound in the fan system.

  • Page 158: Manual Adjustment Function Of Outside Temperature (To) Sensor

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

  • Page 159: Confirmation Of The Check Code ( L02, L11, L13, L14 ) Occurred During Installation

    8-7-10. Confirmation of the check code ( L02, L11, L13, L14 ) occurred during installation Use this function to check for the check codes ( L02, L11, L13, L14 ) that may occur during installation. [Method to switch the check codes L02 display] (1) Set the rotary switches [SW01/SW02/SW03] on the interface P.C.

  • Page 160: Monitor Function Of Remote Controller Switch

    8-7-12. Monitor function of remote controller switch When using a remote controller with the model name RBC-ASCU11*, the following monitor functions can be used. Calling of display screen <Content> The sensor temperature or operation status of the remote controller, indoor unit, or the outdoor unit can be known by calling up the service monitor mode from the remote controller.
  • Page 161 Display CODE No. Data name Unit Remote controller display example format Room temperature (Use to control) ×1 °C Room temperature (Remote controller) ×1 °C Indoor suction air temperature (TA) ×1 °C Indoor coil temperature (TCJ) ×1 °C [0024] = 24 °C Indoor coil temperature (TC2) ×1 °C...

  • Page 162: Troubleshooting

    Troubleshooting 9-1. Overview (1) Before engaging in troubleshooting (a) Applicable models Indoor units: MMO-UPOOO, Outdoor units: MCY-MUGOOO1HSW* (b) Tools and measuring devices required • Screwdrivers (Philips, flat head), spanners, long-nose pliers, nipper, pin to push reset switch, etc. • Multimeter, thermometer, pressure gauge, etc. (c) Things to check prior to troubleshooting (behaviors listed below are normal) Behavior Possible cause...

  • Page 163: Troubleshooting Method

    9-2. Troubleshooting method The remote controllers (main remote controller and central control remote controller) and the interface P.C. board of an outdoor unit are provided with an LCD display (remote controller) or a 7-segment display (outdoor interface P.C. board) to display operational status. Using this self-diagnosis feature, the fault site / faulty part may be identified in the event of a fault by following the method described below.
  • Page 164 Check code Display of receiving unit Outdoor 7-segment display Indicator light block central control Typical problem site Description of Check code or main remote controller Operation Timer Ready Sub-code Flash display Address setting has not been performed for one or more –...
  • Page 165 (Check code detected by main remote controller) Check code Display of receiving unit Outdoor 7-segment display Indicator light block Typical problem site Description of Check code Remote Operation Timer Ready controller Sub-code Flash No master remote controller, failure Signals cannot be received from indoor unit; master –...
  • Page 166 List of Check Codes (Outdoor Unit) : Lighting, : Flashing, : Goes off ALT: Flashing is alternately when there are two flashing LED (Check codes detected by outdoor interface - typical examples) SIM: Simultaneous flashing when there are two flashing LED If "HELLO"...
  • Page 167 Check code Display of receiving unit Outdoor 7-segment display Indicator light block Central control Typical problem site Description of Check code or main remote controller Operation Timer Ready Sub-code Flash display – High pressure sensor (Pd) Output voltage of high pressure sensor (Pd) is trouble zero or provides abnormal readings when compressors have been turned off.
  • Page 168 Check code Display of receiving unit Outdoor 7-segment display Indicator light block Central control Typical problem site Description of Check code or main remote controller Operation Timer Ready Sub-code Flash display P10 Indoor unit No. detected Indoor unit overflow Indoor unit has been shutdown in one refrigerant (P10) line due to detection of overflow (detected by indoor unit).

  • Page 169: Troubleshooting Based On Information Displayed On Remote Controller

    9-3. Troubleshooting based on information displayed on remote controller Using main remote controller (RBC-ASCU11*) <RBC-ASCU11*> (1) Checking and testing If a problem occurs with the air conditioner, the OFF timer indicator alternately shows the check code and the indoor Unit No. in which the problem occurred.
  • Page 170 Using indoor unit indicators (receiving unit light block) (wireless type) To identify the check code, check the 7-segment display on the outdoor unit. To check for check codes not displayed on the 7-segment display, consult the “List of Check Codes (Indoor Unit)” in “9-2. Troubleshooting method”.
  • Page 171 Light block Check code Cause of trouble Heat exchanger temperature sensor (TCJ) trouble Operation Timer Ready Heat exchanger temperature sensor (TC2) trouble Heat exchanger temperature sensor (TC1) trouble Indoor unit temperature sensor trouble Ambient temperature sensor (TA/TSA) trouble Alternate blinking Discharge temperature sensor (TF) trouble Discharge temperature sensor (TD) trouble Operation...
  • Page 172 Other (indications not involving check code) Light block Check code Cause of trouble Operation Timer Ready – Test run in progress Synchronized blinking Operation Timer Ready Setting incompatibility – (automatic cooling / heating setting for model incapable of it and heating setting for cooling-only model) Alternate blinking...

  • Page 173: Check Codes Displayed On Remote Controller And Outdoor Unit (7-Segment Display On I/F Board) And Locations To Be Checked

    9-4. Check codes displayed on remote controller and outdoor unit (7-segment display on I/F board) and locations to be checked For other types of outdoor units, refer to their own service manuals. Check code Location of Outdoor 7-segment display Check code detection Check items (locations) Description System status...
  • Page 174 Check code Location of Outdoor 7-segment display Check code detection Check items (locations) Description System status detection condition(s) Controller Check Sub-code code All indoor unit initially • Check power supply to indoor (Depending Dropping out of communicating normally unit.(Is power turned on?) on indoor —...
  • Page 175 Check code Location of Outdoor 7-segment display Check code detection Check items (locations) Description System status detection condition(s) Controller Check Sub-code code communication • Check order in which power was trouble between Stop of turned on. There is no communication —...
  • Page 176 Check code Location of Outdoor 7-segment display Check code detection Check items (locations) Description System status detection condition(s) Controller Check Sub-code code • Check connection of TA sensor connector and wiring. Stop of Sensor resistance is Indoor TA • Check resistance characteristics —...
  • Page 177 Check code Location of Outdoor 7-segment display Check code detection Check items (locations) Description System status detection condition(s) Controller Check Sub-code code • Check for failure in compressor. • Check compressor system wiring, particularly for open Overcurrent is detected phase. Compressor Compressor several seconds after...
  • Page 178 Check code Location of Outdoor 7-segment display Check code detection Check items (locations) Description System status detection condition(s) Controller Check Sub-code code • Check Malfunction LED of Leak • Continued • There is no Detector. operation communication from Leak • Check disconnection and Leak Detector •...
  • Page 179 Check code Location of Outdoor 7-segment display Check code detection Check items (locations) Description System status detection condition(s) Controller Check Sub-code code • Safety measures CODE • Check safety measures CODE No. setting of indoor unit is No. settings of indoor units. set other than "no safety •...
  • Page 180 Check code Location of Outdoor 7-segment display Check code detection Check items (locations) Description System status detection condition(s) Controller Check Sub-code code • Check connection of high- pressure SW connector. • Check for failure in Pd pressure sensor. • Check outdoor service valves (gas side, liquid side) to confirm full opening.
  • Page 181 Check code Location of Outdoor 7-segment display Check code detection Check items (locations) Description System status detection condition(s) Controller Check Sub-code code • Check connection of fan • Motor speed connector and wiring. measurements Stop of • Check for failure in fan motor. Indoor fan motor continuously deviate from —...
  • Page 182 Check code Location of Outdoor 7-segment display Check code detection Check items (locations) Description System status detection condition(s) Controller Check Sub-code code • Check for failure in Pd pressure sensor. • Check service valves (gas side, liquid side) to confirm full opening.
  • Page 183 Check code Location of Outdoor 7-segment display Check code detection Check items (locations) Description System status detection condition(s) Controller Check Sub-code code Trouble occurs in follower • Check check code of unit that Differs according to Central Group control unit under group control. has generated alarm.
  • Page 184 Points to Note When Servicing Compressor (1) When checking the outputs of inverters, remove the wiring from the compressors. How to Check Inverter Output (1) Turn off the power supply. (2) Remove compressor leads from the IPDU P.C. board. (Be sure to remove all the leads.) (3) Turn on the power supply and start cooling or heating operation.

  • Page 185: Diagnosis Procedure For Each Check Code

    9-5. Diagnosis procedure for each check code...

  • Page 214: 7-Segment Display Function

    9-6. 7-segment display function 7-segment display on outdoor unit (interface P.C. board) The interface control P.C. board features a 7-segment LED display designed to check operational status. Display items can be changed by changing the combination of the number settings of rotary switches provided on the P.C. board (SW01, SW02 and SW03).
  • Page 215 (1)Display of system information (displayed on outdoor unit) SW01 SW02 SW03 Display detail System capacity […4]~[...6] : 4 to 6 HP [HP] No. of outdoor units […1] : 1 […P] No. of indoor units connected / (1) [..0 ] ~ [ ..13 ] : 0 ~ 13 (Number of connected units) No.
  • Page 216 (2)Display of outdoor unit information (Displayed on Outdoor Unit) SW01 SW02 SW03 Display detail Check code data A Outdoor unit No.: [U1] B If there is no check code, [U. 1. - - -] is displayed. If there is check code [U. 1. err] [OOO].
  • Page 217 (3)Display of outdoor cycle data (Displayed on Outdoor Unit) SW01 SW02 SW03 Display detail Pd pressure data Pd pressure (MPaG) is displayed in decimal format. (MPaG: Approx. 10 times magnitude of kg/cm P d. ∗. ∗ ∗ ∗. ∗ ∗ Ps pressure data Ps pressure (MPaG) is displayed in decimal format.
  • Page 218 (4)Display of indoor unit information (displayed on outdoor unit) SW01 SW02 SW03 Display detail Indoor check code B No check code: [– – –] Indoor BUS communication signal B Upon receiving signal: [… … 1], Other times: [… … …] receiving status Indoor HP capacity ...

  • Page 219: Sensor Characteristics

    9-7. Sensor characteristics Outdoor Unit Temperature sensor characteristics Outdoor TS1, TE, TL1 and TO sensors Temperature [°C] Resistance [kΩ] Resistance [kΩ] (10 °C or below) Resistance [kΩ] (10 °C or above) Temperature [°C] Outdoor TD sensor Temperature [°C] Resistance [kΩ] Resistance Resistance [kΩ]...
  • Page 220 Outdoor Unit Pressure sensor characteristics • Input / output wiring summary High pressure side (Pd) Low pressure side (Ps) Pin No. Input / output name Lead wire color Input / output name Lead wire color OUTPUT White — — — —...
  • Page 221 Indoor TC1 sensor Temperature [°C] Resistance [kΩ] Resistance Resistance [kΩ] [kΩ] (10 °C or below) (10 °C or above) Temperature [°C] Indoor TC2 and TCJ sensors Temperature [°C] Resistance [kΩ] Resistance Resistance [kΩ] [kΩ] (10 °C or below) (10 °C or above) Temperature [°C]...

  • Page 222: Pressure Sensor Output Check

    9-8. Pressure sensor output check Outdoor Unit Pd sensor characteristics 0 to 3.92 MPa (0.5 to 4.5 V output for 0 to 3.92 MPa) Voltage readings across pins 1 and 3 of CN501 on indoor unit main P.C. board (with negative-side probe of multimeter placed on pin 3) VOLT VOLT...
  • Page 223 Outdoor Unit Ps sensor characteristics 0 to 0.98 MPa (0.5 to 3.5 V output for 0 to 0.98 MPa) Voltage readings across pins 2 and 3 of CN500 on indoor unit main P.C. board (with negative-side probe of multimeter placed on pin 3) VOLT VOLT VOLT...

  • Page 224: System Operation When The Leak Detector Detects A Refrigerant Leak

    9-9. System operation when the Leak Detector detects a refrigerant leak. When Leak Detector detects a refrigerant leak, the indoor unit connected the Leak Detector issues [J30] notification. When a refrigerant leak is detected, the alarm LED flashes and the buzzer rings. The alarm can be stopped by pushing the alarm lamp button for at least 2 seconds, after buzzer sounds 1 minute.

  • Page 225: Outdoor Unit Parts Replacement Methods

    Outdoor unit parts replacement methods Component Procedure Remarks Front panel WARNING Upper panel Upper panel Do not detach the inverter for 5 minutes after turning off the breaker as doing so may cause electric shocks. Front panel NOTE Wear gloves when working on it. Failure to observe this precaution may cause injury due to components, etc.
  • Page 226 Component Procedure Remarks Discharge cabinet 1. Detachment Discharge cabinet 1) Remove the Front panel and Upper panel. Screws to motor base (2 positions) [Step.1] 2) Remove the screws of the Discharge cabinet fixed with Partition plate and Inverter assembly. Screws to (M4 ×...
  • Page 227 Component Procedure Remarks Interface P.C.board WARNING attachment plate Interface P.C board Screw of cover swich attachment plate Cover switch Do not detach the inverter for 5 minutes after turning off the breaker as doing so may cause electric shocks. 1. Detachment lead wire 1) Remove the Front panel, Upper panel and Side clamps...
  • Page 228 Component Procedure Remarks Reactor Screws (3 positions) WARNING Do not detach the inverter for 5 minutes after turning off the breaker as doing so may cause electric shocks. 1. Detachment 1) "Remove the Front panel, Discharge cabinet, Side panel, Interface P.C. attachment plate. Reactor covering plate [Step.1 - Step.4]"...
  • Page 229 Component Procedure Remarks IPDU P.C. board WARNING assembly Cord Do not detach the inverter for 5 minutes after clamp turning off the breaker as doing so may cause electric shocks. 1. Detachment IPDU P.C. 1) "Remove the Front panel, Upper panel, Discharge board panel, Side panel, Interface P.C.
  • Page 230 Component Procedure Remarks Interface P.C. board Support hooks WARNING (8 positions) Do not detach the inverter for 5 minutes after turning off the breaker as doing so may cause electric shocks. 1. Detachment 1)Remove the Front panel, Upper panel, Side panel, Discharge cabinet, Interface P.C board Interface attachment plate.
  • Page 231 Component Procedure Remarks Noise filter P.C. WARNING board Screws Do not detach the inverter for 5 minutes after (M4 x 8) (2 turning off the breaker as doing so may cause positions) electric shocks. 1. Detachment Noise filter 1)Remove the Front panel, Upper panel, Side panel, Wire saddles P.C.
  • Page 232 Component Procedure Remarks IPDU P.C board WARNING IPDU P.C board Screw(M4 x 14) Do not detach the inverter for 5 minutes after Support turning off the breaker as doing so may cause electric shocks. 1. Detachment Screws (M3 x 14) 1)Remove the Front panel, Upper panel, Side panel, (6 positions) Discharge cabinet, Interface P.C board...
  • Page 233 Component Procedure Remarks Fan motor 1. Detachment 1)Remove the Front panel, Upper panel, Discharge cabinet and Fan motor lead. [Step.1, Step.2, Step.7] 2)Remove the Connector connected between the Fan motor and IPDU P.C. board. 3)"Remove the Flange nut which fix the Fan motor Flange nut and Propeller fan.
  • Page 234 Component Procedure Remarks Compressor 1) Collect the refrigerant gas with the recovery (Removing) equipment. TD sensor 2) "Remove the Front panel, Upper panel, Discharge cabinet, Side panel, and P.C. board assemblies Screws [Step1 - Step7]" (4 positions) Suction pipe 3) Remove the partition plate. (M4 x 10 , 4) (Fig.
  • Page 235 Component Procedure Remarks Compressor 1.Installation of compressor (Installation) Install the compressor in the reverse procedure of Accumulator removal. Sound insulation CAUTION (outside) Compressor The tightening torque of the hexagonal bolt to fix the compressor is 11.0 N?m (110 kgf cm). Sound insulation 2.Installation of sound-insulation mat...
  • Page 236 Component Procedure Remarks PMV coil 1. Detachment 1)Remove the Front panel , Upper panel and Side CN300 panel. [Step.1 - Step.3] 2)Remove the Connector of PMV coil from the interface P.C. board. CN300:PMV coil (6P:white) 3)"Remove the lead wire from the lead wire clamp Lead wire and the banding band.
  • Page 237 Component Procedure Remarks Power supply wires 1. Detachment Valve fixing plate and Indoor / Outdoor 1)Remove the Power wire and Indoor / Outdoor Banding connecting wires communication wire from the power supply band of Indoor / terminal block and communication terminal block. Outdoor [Step1] connectin...

  • Page 238: C. Board Exchange Procedures

    P.C. board exchange procedures 11-1.Interface P.C. board Replacement Procedure 1. Applicable models MCY-MUG0401HSW-*, MCY-MUG0501HSW-*, MCY-MUG0601HSW-* *: The characters in accordance with the destination may attach to the end of model name. 2. Shipped parts list Please make sure that before you do the work, the following parts are shipped all. Parts name Quantity P.C.
  • Page 239 (9) After turning off the power, wait at least 5 minutes before starting the next operation. (10) Remove the data copy cable. (11) After having replaced the board follow the instructions in section 8-4. “Address setup” in the service manual. (12) If any of the components on the new P.C.

  • Page 240: Ipdu P.c.board Replacement Procedure

    11-2.IPDU P.C.board Replacement Procedure 1. Shipped parts list Please make sure that before you do the work, the following parts are shipped all. Parts name Quantity P.C.board Replacement Procedure Manual English and Chinese each 1page A4 paper double side print. Service P.C.board MCC-1690 (IPDU P.C.board) Card Spacer (No.
  • Page 241 (11) Install the cover, turn on the power, and check operation. IPDU P.C.board Caution: Wiring not to touch the Reactor core. Reactor Reactor ③ Card spacer ① Single-touch spacer ② Screw (M4×14) ④ Screw(M4×8) P.C.board First remove the Used to secure the lead wire Screw tightening torque: 1.2 ±0.1 N•m Screws ②...

  • Page 242: Noise Filter P.c.board Replacement Procedure

    11-3.Noise filter P.C.board Replacement Procedure 1. Shipped parts list Please make sure that before you do the work, the following parts are shipped all. Parts name Quantity P.C.board Replacement Procedure Manual (English and Chinese each 1page A4 paper double side print.) Service P.C.board MCC-1690 (IPDU P.C.board) 2.

  • Page 243: Shut-Off Valve Unit Including Battery Kit

    11-4.Shut-off Valve unit including Battery kit Part Work procedure Remarks Electrical control WARNING box cover ▪ Wear a pair of gloves. Otherwise, you will risk an injury involving a replacement part or some other object. ▪ Stop the power supply of the air conditioner and Screws turn off switch of the power supply breaker.
  • Page 244 Part Work procedure Remarks 2. Attachment 1)Fix the control P.C. board to the card edge spacers. (4 places) 2)Connect the connectors disconnected in item 1-2) as before. For connectors, check there is no missing or contact failure. The lead wire should be wired so as not to touch the cement resistance R03.
  • Page 245 Part Work procedure Remarks Terminal 1. Detachment 1)Perform work of procedure 1-1 Detachment. Remove from the (Electrical control box cover) terminal. 2)Remove the wires from the terminal. 3)Remove the screws fixing the terminal. (M4 x 14, 2 pcs) 2. Attachment 1)Fix the terminal with screws as before.
  • Page 246 Part Work procedure Remarks Clamp filter 1. Detachment for earth wire 1)Perform work of procedure 1-1 Detachment. (ZCAT3035-1330) (Electrical control box cover) 2)Remove the clamp filter from the earth wire. 2. Attachment 1)Make two turn on the earth wire and attach the Clamp filter clamp filter to it.
  • Page 247 Part Work procedure Remarks BUSHING 1. Detachment 1)Perform work of procedure 1-1 Detachment. (Electrical control box cover) Hook 2)Push 2 hooks and remove the bushing from the electrical control box. Push Push 2. Attachment 1)Attach the bushing to the electrical control box. Push the bushing to hook the hooks onto the steel plate certainly.
  • Page 248 Part Work procedure Remarks BODY-SERVE Before the work, be sure to recover the refrigerant of outdoor unit into cylinders or Screws another unit connected to the same system. Electrical control box 1. Detachment 1)Remove connecting pipes from the Shut-off Valve unit. 2)Remove the Shut-off Valve unit from three Hanging hanging-bolts.
  • Page 249 Work procedure Remarks 10 Battery kit WARNING • Do not connect anything except TOSHIBA Battery kit. • This kit includes a nickel-metal hydride battery (NiMH). For your safety, please read instruction manual in Battery kit carefully and handle it with care.

  • Page 250: Disposal Method For Battery Kit

    11-5.Disposal method for Battery kit • Disassemble the nickel-metal hydride battery (NiMH) built into this product and dispose of it or recycle it in accordance with the laws and regulations of your country / region. • When disposing of batteries, keep batteries of different electrochemical systems separate from each other.

  • Page 251: Leak Detector

    11-6.Leak Detector No. Part Work procedure Remarks Print Circuit Board 1. Detachment (PCB) 1)Stop the air conditioner operation, and turn off the circuit breaker to shut off the power supply. 2)Remove the bind screw which fix the CASE of the Leak Detector. (M3 x 8, 1 pcs) 2) Bind screw 3)Remove the CASE of the Leak Detector.
  • Page 252 No. Part Work procedure Remarks Sensor module 1. Detachment 1)Carry out the same procedure as PCB and insulation Sheet Detachment 1) to 6) of PCB. 2)Remove the PCB. 3)Remove the Connector of sensor cable from sensor module. 4)Remove the sensor module from CASE. NOTE Do not remove the sensor module before detach the PCB.

  • Page 253: Exploded Diagram / Parts List

    Exploded diagram / parts list 12-1.Outdoor unit...
  • Page 254 Q’ty/Set MCY-MUG***1 Location No. Part No. Description HSW-(E/TR) 43P00005 PANEL, AIR OUTLET 43P00017 PANEL, FRONT, ASSY 43P00020 PANEL, SIDE, RIGHT, ASSY 43P00008 PANEL, ROOF, ASSY 43P00009 PANEL, FRONT, PIPING 43P00010 PANEL, BACK, PIPING, ASSY 43P00011 STAY 43P09001 GUARD, FAN 43P21003 MOTOR, FAN, ICF-280-A100-1 43P20001 FAN, PROPELLER, PS561-E...

  • Page 255: Inverter Assembly

    12-2.Inverter assembly ASM-PCB (IF) ASM-PCB (NF) ASM-PCB (IPDU) SUPPORTER, ASSY TERMINAL BLOCK SENSOR, TO ( 6) SENSOR, TS1 ( 6) LEAD ASSY, COMPRESSER SENSOR, TD ( 6) SENSOR, TL1 ( 6) SENSOR, TE ( 6) Q’ty/Set Location Part No. Description MCY-MUG***1HSW-(E/TR) 43150465 SENSOR, TS1...

  • Page 256: Shut-Off Valve Unit

    12-3.Shut-off Valve unit Model: RBM-SV1121HUPE, RBM-SV1801HUPE Q’ty/Set Location Part No. Description RBM-SV****HUPE 1121 1801 43TN9650 PC BOARD ASSY, MCC-1771 43T46546 COIL, PMV, PAM-MD12TF-305 43T46548 COIL, PMV, PAM-MD12TF-306 43T60592 SERV-TERMINAL 43T96310 BUSHING 43T96309 BUSHING 43T00907 BODY ASSY, SERVICE 43T00908 BODY ASSY, SERVICE...

  • Page 257: Leak Detector

    12-4.Leak Detector Model: TCB-LD1UPE Location Part No. Description Q'ty / Set 43TN9744 PC BOARD ASSY 43T50431 R32 SENSING MODULE...
  • Page 258 Toshiba Carrier Air-Conditioning Europe Sp. z o.o. ul. Gdańska 131, 62-200 Gniezno, Poland Copyright © 2022 Toshiba Carrier Air-conditioning Europe Sp. z o.o. All Rights Reserved.

This manual is also suitable for:

Mcy-mug0401hsw-trMcy-mug0501hsw-eMcy-mug0501hsw-trMcy-mug0601hsw-eMcy-mug0601hsw-tr

Table of Contents