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Toshiba Carrier TCB-IFDMR01UP-UL Service Manual

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SERVICE MANUAL
AIR-CONDITIONER
VRF DX-COIL INTERFACE Advance
Model name:
Dx-coil controller
TCB-IFDMR01UP-UL
(Terminal block with relay)
Dx-valve kit
RBM-A0601UPVA-UL
RBM-A1201UPVA-UL
RBM-A1921UPVA-UL
• For the outdoor unit, refer to the service manual of the Super Modular Multi System.
• For the Air Handling Unit contact the manufacturer you made the purchase.
• TOSHIBA Carrier does not take any responsibility on the local design.
FILE NO. SVM-23024-1
(OPTION KIT)
Revised on Apr, 2023

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Summary of Contents for Toshiba Carrier TCB-IFDMR01UP-UL

  • Page 1 • For the outdoor unit, refer to the service manual of the Super Modular Multi System. • For the Air Handling Unit contact the manufacturer you made the purchase. • TOSHIBA Carrier does not take any responsibility on the local design. Revised on Apr, 2023...

  • Page 2: Table Of Contents

    CONTENTS 1. OVERVIEW .................. 2. CONSTRUCTION VIEWS (EXTERNAL VIEWS)......3. WIRING DIAGRAMS ..............4. REFRIGERANT CYCLE DIAGRAM ..........4- 1. TC1, TC2 and TCJ sensor position on DX COIL ............4- 2. Refrigerant circuit diagram ....................4- 3. Piping size and Y-joint ...................... 4- 4.
  • Page 3 Generic Denomination: Air Conditioner Definition of Qualified Installer or Qualified Service Person The air conditioner must be installed, maintained, repaired and removed by a qualified installer or qualified service person. When any of these jobs is to be done, ask a qualified installer or qualified service person to do them. A qualified installer or qualified service person is an agent who has the qualifications and knowledge described in the table below.
  • Page 4 Definition of Protective Gear When the VRF Dx-coil interface is to be transported, installed, maintained, repaired or removed, wear protective gloves and ‘safety’ work clothing. In addition to such normal protective gear, wear the protective gear described below when undertaking the special work detailed in the table below.
  • Page 5 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 to the OFF position. Otherwise, electric shocks may result. Before opening the electrical box cover, set the circuit breaker to the OFF position.
  • Page 6 WARNING Before starting to repair the VRF Dx-coil interface, read carefully through the Service Manual, and repair the air conditioner by following its instructions. Only qualified service person is allowed to repair the VRF Dx-coil interface. Repair of the VRF Dx-coil interface by unqualified person may give rise to a fire, electric shocks, injury, water leaks and / or other problems.
  • Page 7 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 8 After repair work, surely assemble the disassembled parts, and connect and lead the removed wires as before. Perform the work so that the electrical box cover does not catch the inner wires. If incorrect assembly or incorrect wire connection was done, a disaster such as a leak or fire is Assembly / caused at user’s side.
  • Page 9 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. If you fail to heed this warning, you will run the risk of burning yourself because the compressor pipes and other parts will be very hot to the touch.

  • Page 10: Overview

    1. OVERVIEW VRF Dx-coil interface is the product that is used with connecting the AHU with the DX COIL prepared on-site to the Toshiba Carrier VRF outdoor unit. *1. DX COIL: Abbreviation of the Direct expansion coil (heat exchanger). *2. DDC: Abbreviation of the Direct Digital Controller.
  • Page 11 DDC type : Direct capacity control of Toshiba Carrier VRF outdoor unit by analogue input (0-10 V) Mainly discharge air temperature control linked AHU system. Locally procured Dx-coil controller Outdoor unit DX-Valve kit • Diversity specification Type SMMS-u SMMS-e SHRM-e...
  • Page 12 Dx coil type Normal (TA, TF, DDC type) Interfaced, Split face (TA type) Type Dx-coilcontroller Dx-valve kit Dx-coilcontroller Dx-valve kit RBM- RBM- RBM- RBM- RBM- RBM- TCB-IFDMR01 TCB-IFDMR01 number number Model name A0601UPV A1201UPV A1921UPV A0601UPV A1201UPV A1921UPV UP-UL UP-UL A-UL A-UL A-UL...
  • Page 13  Settings for each type (TA, TF, DDC) Set with the SW501 switch on the control P.C. board MCC-1777. SW501 TA type: Set all SW501 to OFF. Turn off Bit3 of SW501. SW501 TF type: Turn on only Bit2 of SW501. Turn off Bit3 of SW501.

  • Page 14: Construction Views (External Views)

    2. CONSTRUCTION VIEWS (EXTERNAL VIEWS) TCB-IFDMR01UP-UL (Unit: in (mm)) MCC-1777 4-Ø 15/32" (12) Mounting wall (Accessories No.11) 8" (200) 16.9" (430) 0.5" (13) 15.7" (400) 0.5" (14.6) Sensor (TC1, TC2, TCJ, TA, TF)(accessory) Sensor connection port (Local connecting) Terminal block There are two types.
  • Page 15 RBM-A0601UPVA-UL, RBM-A1201UPVA-UL, RBM-A1921UPVA-UL (Unit: in (mm)) Terminal block (5p) 8.2" (209) 3.1" (80) 0.6" (15) 7" (179) Connection cable (Factory wiring) Connection cable (Local wiring) When fixing the connection cable with a cable tie, allow 4-Ø15/64" (6) Mounting hole a margin for the connection cable on the terminal block side.

  • Page 16: Wiring Diagrams

    3. WIRING DIAGRAMS TCB-IFDMR01UP-UL (Terminal block with relay) - 16 -...

  • Page 17: Refrigerant Cycle Diagram

    4. REFRIGERANT CYCLE DIAGRAM 4-1. TC1, TC2 and TCJ sensor position on DX COIL Gas pipe Capillary Tube Header PMV: Pulse Dx-valve kit Motor Valve Strainer 16'5" (5 m) Distributor TCJ Ø15/64" (6 mm) Brazing (Brazing) TC1 Ø5/32" (4 mm) Heat insulator (Brazing) 2"...

  • Page 18: Refrigerant Circuit Diagram

    4-2. Refrigerant circuit diagram (1) Gas pipe Capillary Tube Header PMV: Pulse Valve kit Motor Valve Strainer 16'5" (5 m) Distributor Brazing Heat insulator (2) Liquid pipe Valve kit: 1 set DX COIL type: Normal (1) Gas pipe Valve kit Header PMV: Pulse Capillary Tube...
  • Page 19 (1) Gas pipe Valve kit Capillary Tube Header PMV: Pulse Motor Valve Strainer DX COIL Distributor Brazing Y-joint (B) Heat insulator (2) Liquid pipe Valve kit Capillary Tube PMV: Pulse Header Motor Valve Strainer DX COIL Y-joint (A) Distributor Y-joint (B) Brazing Heat insulator (2) Liquid pipe...

  • Page 20: Piping Size And Y-Joint

    4-3. Piping size and Y-joint Piping size and Y-joint • Maximum real piping length between valve kit and Dx coil is up to 16'5" (5 m) (Unit: in (mm)) Pipe diameter DX-COIL type Normol DX COIL type (1) Gas pipe (2) Liquid pipe (3) Liquid pipe Y-joint (A, B) Outer diameter...

  • Page 21: Allowable Length And Allowable Height Difference Of Refrigerant Piping

    4-4. Allowable length and allowable height difference of refrigerant piping 1) When connecting the Dx-coil interface TA type TF, DDC type Item Main pipe equivalent length Same as piping length restriction of outdoor unit Total piping length 656'2" 393'8"(328'1") 120(100) Furthest equivalent pipe length L (real length) 426'6"(393'8") 130(120)

  • Page 22: Installation Temperature Sensor

    4-5. Installation temperature sensor By the refrigerant circuit diagram, braze the sensor holder of TC1, TC2, TCJ of the valve kit and the accessory. Refer to the below table for the pipe diameter and the pipe length to use. Dx-valve kit and connection of the pipe •...

  • Page 23: Parts Rating

    5. PARTS RATING Dx-coil controller part name Model name or specification Q'ty MCC-1777 P.C. board Terminal block JXO-3B, AC250V 20A (3P, for power supply) Terminal block PCKK2.5-01P-11-00A(H) (for signal lines) G2RV-SR700 Relay model name G2RV-SR700-12DC Terminal block with relay 250V max / 3A max (for signal lines) Contact rating (Minimum Current: 10 mA more)
  • Page 24 Temperature sensor characteristics TA and TF sensor Temperature [°F(°C)] Resistance [kΩ] 32(0) 33.9 Resistance 41(5) 26.1 [kΩ] 50(10) 20.3 59(15) 15.9 68(20) 12.6 77(25) 10.0 86(30) 95(35) 104(40) 113(45) 122(50) 131(55) 140(60) (10) (20) (30) (40) (50) (60) Temperature [°F(°C)] Resistance [kΩ] Temperature [°F(°C)] -4(-20)

  • Page 25: Control Outline

    6. CONTROL OUTLINE Item Specification outline Remarks Upon power 1) Distinction of outdoor unit supply reset When the power supply is reset, the outdoors are distinguished and the control is selected according to the distinguished result. 2) If resetting the power supply during occurrence of a trouble, the check code is once cleared.
  • Page 26 Item Specification outline Remarks The difference between the suction temperature and AUTO the discharge temperature and suction temperature Heat recovery set by the remote controller automatically switches system outdoor unit type between cooling and heating operations. If both (TF type) conditions 1 and 2 are satisfied, the thermostat will be turned on.
  • Page 27 Item Specification outline Remarks (TA type) Automatic capacity Based on the difference between TA and Ts, the operation control capacity is determined by the outdoor unit. COOL HEAT (˚F) (˚F) Ts: Temperature set by –2 remote controller. TA: Room temperature. –2 –4 (TF type)
  • Page 28 Item Specification outline Remarks When the Outdoor / Suction air temp. is low, the following controls will be operated. Forced Fan OFF OPERATION STANDBY (TF type) is displayed (1) The fan is forcibly turned off according to the temperature of outdoor ambient (suction) (TA) 41°F COOL...
  • Page 29 Item Specification outline Remarks (TF type) (1) Under HEAT operation, the higher temperature of TC2 sensor and TCJ sensor TCJ : Temperature is compared with temperature of TC1 sensor then lower temperature is used to of Indoor heat set the upper limit of the fan tap. exchange sensor Under defrosting operation, the control point is set to +43°F.
  • Page 30 Item Specification outline Remarks Heating While the outdoor unit is recovering heating refrigerant (oil), the indoor • Recovery refrigerant (oil) units perform the following control tasks: operation normally recovery takes place 1)Open the indoor PMV to a certain degree. control roughly every hour.
  • Page 31 Item Specification outline Remarks Frequency <In case of wired remote controller> Command frequency fixed is approximately [S7] 1) When pushing [CHK] button for 4 seconds or more, [TEST] is displayed operation on the display screen and the mode enters in Test run mode. (Test run) 2) Push [ON/OFF] button.
  • Page 32 Item Specification outline Remarks FAN control by Change the fan speed by inputting 4-20mA to the terminal ＊AI1 / AI1. external input (1) 4- 20mA upload fan speed DN [4A0] = 0000: No setting = 0001: With control (FAN control from the outside is prioritized) = 0002: With control (Priority is given to FAN control by 4 - 20mA input) DN [4A1] = 0014: 14mA　(default) applicable range 7mA to 16mA...

  • Page 33: Input And Output Port

    7. INPUT AND OUTPUT PORT 7-1. Dx-coil controller Print Circuit Board MCC-1777 - 33 -...
  • Page 34 ■MCC-1777 Connector Connector Function Pin No. Wire color Specification No. CN color (WHI) (YEL) (ORN) PMV 1 (BLU) (BLU) (RED) DC12V (WHI) (YEL) (ORN) PMV 2 (BLK) (BLU) (RED) DC12V (BRN) (BLU) (RED) (RED) (BLK) (BLK) (YEL) (BLK) (GRN) (RED) (WHI) Defrost mode (WHI)

  • Page 35: Test Run

     Interface P.C.board function setting exchange table When operating the SW, turn off the power before setting. Bit Function Name Detail (Default) No function The default is TA type. For TF type, turn TA / TF type switching TA type TF type on Bit2.

  • Page 36: Input And Output Specification

    7-3. Input and Output specification Dx-coil controller MCC-1777 Terminal block L1 L2 Power supply terminal block Earth screw Unit: in (mm)) Space: 0.33" (8.5 mm) Space: 0.16" (4 mm) 0.2" (4.8) 0.4" (10.2) 0.6" (15) Select side for the power wire clamping position according to the wire type and diameter.
  • Page 37 Terminal Function Description Operating output Digital output DC12 V Alarm active digital output Digital output DC12 V Fan motor active digital output Digital output DC12 V Defrost mode digital output Digital output DC12 V DO1 Digital output 1 (User defined) Digital output DC12 V DO2 Digital output 2 (User defined)
  • Page 38  The specifications of Terminal DO1 to DO6 The specifications of Terminal DO1 to DO6 are as follows. TCB-IFDMR01UP-UL (Terminal block with relay) MAX. 1640'5" (500 m) Locally procured DO1 - DO1 - DO6 • Use the contact side of the relay terminal used in TCB-IFDMR01UP-UL according to the specifications shown in the table below.
  • Page 39 Terminal DO7 / DO7: Thermostat on Digital output (DC12 V) • When the thermostat of Dx-coil is ON, a signal comes out. TCB-IFDMR01UP-UL (Terminal block with relay) MAX. 1640'5" (500 m) Locally procured Signal DO7 - DC12 V DO7 - DOE Relay (DC12 V) Terminal DO8 / DO8: Cooling / heating start up control signal output •...
  • Page 40 Terminal DI1 / DI1: Safety contact (Normal close) MODE 1 (Normally close, DC12 V) *When Bit1 of SW505 is OFF • If this contact is open for more than 1 minute, the check code P10 is generated and the Dx-coil controller switches off automatically.
  • Page 41 Terminal DI2 / DI2: External trouble Input • An AHU fan operation monitor (Field supply), could be attached at this dry contact terminal (For example, the abnormality of the fan motor). A closed contact generates the check code L30. Terminal DI3 / DI3: Forced thermostat OFF Input •...
  • Page 42 The position of J01 (MCC-1777) Action Pulse input (At factory setting) Connect Pulse width 200 to 300 ms Pulse interval 200 to 300 ms or more. Static input Terminal AI1 / AI1: 4 - 20 mA FAN interlocking control by external input •...
  • Page 43 Terminal AI3 / AI3: Analogue Input Capacity control • Be sure not input more than DC10 V in analogue input terminal. • To ease the integration of the DX COIL with the DDC the capacity control is able to operate with a STEPPED or LINEAR function from the analogue input.
  • Page 44 • For TA and TF type, the set temperature can be changed according to the 0 - 10 V input of AI3. • In the set temperature with the remote controller and this control, the post-setting is prioritized. • The set temperature can be changed only for cooling and heating operations. •...
  • Page 45 Terminal: R / BL / OR / Y / W Dx-valve kit 1, Dx-valve kit 2 : Connect the cable from the PMV. Match the color of the wiring of the PMV side and the controller side. Dx-coil controller Dx-valve kit side Color identification side White...
  • Page 46  Modbus setting method Modbus communication is available on this model. Follow the procedure below to set. 1. Wiring method Outdoor unit Note: When connecting multiple communication lines, connect MdA-MdA and MdB-MdB to each other. (There is polarity) Modbus A line Modbus B line Uv MdA MdB Uv MdA MdB...
  • Page 47 3. Address assignment table Register address Read / Write Data Byte Holding Register 40001 R / W Operation / stop setting 40002 Operation mode setting 40003 Set temperature setting 40004 Automatic cooling set temperature (Dual set point) setting 40005 Automatic heating set temperature (Dual set point) setting 40006 Fan speed setting 40007...
  • Page 48 Register address Read / Write Data Byte Input Register Reserved 30073 ~ 30078 Under restriction of compressor speed due to heat sink 30079 overheating in outdoor unit(s) Cooling / heating start control output 30080 Defrost Mode Digital Output 30081 Pre defrost signal output 30082 Cooling oil recovery / Heating ref recovery 30083...

  • Page 49: Method To Set The Ahu Function Dn Code

    7-4. Method to set the AHU function DN code (When performing this task, be sure to use a wired remote controller.)  DN setting Remote controller model name: RBC-AWSUS*-UL Basic procedure Be sure to stop the air conditioner before making settings. (Change the setup while the air conditioner is not working.) CAUTION Set only the Code No.
  • Page 50 NOTE The following changes are settings to be configured by installation and service personnel. If they are set incorrectly, trouble such as the product becoming inoperable may occur. Set the following DN code according to the Ton of the Dx-coil interface and the model name of the Valve kit. 1.
  • Page 51 Function CODE No. (DN Code) table (includes all functions needed to perform applied control on site) Setting allowed Item Description At shipment 0000: None 0001: 150H 01 Filter display delay timer 0002: 2500H 0003: 5000H 0000: None 0004: 10000H 0000: Standard 02 Dirty state of filter 0000: Standard 0001: High degree of dirt (Half of standard time)
  • Page 52 Setting allowed Item Description At shipment Cooling forced thermostat OFF temp. Tαc (Minimum Outdoor/Suction air temp.) 0018: 64°F(18°C) ~ 0025: 77°F(25°C) 0019: 66°F(19°C) Heating forced thermostat OFF temp. Tαh 0000: 32°F(0°C) ~ 0017: 63°F(17°C ) 0015: 59°F(15°C) (Maximum Outdoor/Suction air temp.) Cooling design thermostat ON/OFF temp.

  • Page 53: Troubleshooting Based On Information Displayed On Remote Controller

    7-5. Troubleshooting based on information displayed on remote controller Confirmation and check When an error occurs in the air conditioner, the check code and the Check code indoor unit number flash on the display of the remote controller. Indoor unit number * The check code is only displayed during the operation.
  • Page 54 Indoor service monitor list Remote controller Code No. Data name Display format Unit display example Room temperature (Use to control) °F Room temperature (Remote controller) °F °F Indoor suction air temperature (TA) Indoor coil temperature (TCJ) °F [0024]=75°F(24°C) Indoor coil temperature (TC2) °F Indoor coil temperature (TC1) °F...
  • Page 55 Display Code No. Unit format °F Room temperature (Use to control) °F e l l °F [0024]=75°F(24°C) °F l i o °F l i o °F l i o °F Indoor discharge air temperature (TF) *1 Indoor fan motor number of revolutions [0100]=1000rpm t l i Suction exchanger (TSA) *1...

  • Page 56: Troubleshooting

    8. TROUBLESHOOTING 8-1. Overview (1) Before engaging in troubleshooting (a) Applicable models All Super Modular Multi System (SMMS- ) models. ∗ (Indoor units: MM ∗ ∗∗∗ , Outdoor units: MMY-M ∗ ∗∗∗ (b) Tools and measuring devices required • Screwdrivers (Philips, flat head), spanners, long-nose pliers, nipper, pin to push reset switch, etc. •...

  • Page 57: Troubleshooting Method

    8-2. Troubleshooting Method The remote controls (main remote control and central control remote control) and the interface P.C. board of an outdoor unit are provided with an LCD display (remote control) or a 7-segment display (outdoor interface P.C. board) to display operational status. Using this self-diagnosis feature, the problem may be identified in the event of a problem by following the method described below.
  • Page 58 (Trouble detected by main remote control) Check code Display of receiving unit Outdoor 7-segment display Indicator light block Typical fault site Description of trouble Main remote control Operation Timer Ready Sub-code Flash No master remote control, Signals cannot be received from indoor unit; –...
  • Page 59 List of Check Codes (Outdoor Unit) (Check code detected by SMMS-e outdoor interface - typical examples) If “HELLO” is displayed on the outdoor 7-segment for 1 minute or more, turn off the power supply once and then turn on the power supply again after 30 seconds or more. When the same symptom appears, it is considered there is a possibility of I/F board trouble.
  • Page 60 Check code Display of receiving unit Outdoor 7-segment display TCC-LINK Indicator light block Typical problem site Description of problem central control or main remote Operation Timer Ready Sub-code control Flash display Outdoor heat exchanger Outdoor heat exchanger gas side temperature 01: TG1 gas side temperature sensors (TG1, TG2) have been open/...
  • Page 61 Check code Display of receiving unit Outdoor 7-segment display Central Indicator light block control or Typical problem site Description of problem main remote Operation Timer Ready Sub-code Flash controller display P.C.board P.C.board Compressor Fan Motor Compressor Fan Motor Trouble in number of There are insufficient number of P.C.
  • Page 62 (Check code detected by Inverter of Compressor featuring in outdoor unit - typical examples) Check code Display of receiving unit Outdoor 7-segment display Central Indicator light block control or Typical problem site Description of proplem main remote Operation Timer Ready Sub-code controller Flash...

  • Page 63: Exploded Views And Parts List

    9. EXPLODED VIEWS AND PARTS LIST Dx-coil controller r LOW VOLTAGE INPUT / OUTPUT SIGNAL TERMINALS CAUTION 208 - 230V DO NOT APPLY 208 - 230V DAMAGE WILL OCCUR 1134795201 POWER SUPPLY AC 208-230V POWER SUPPLY SENSOR OUTPUT INPUT VALVE KIT AC 208-230V 1134795101 Q'ty / Set...
  • Page 64 144/9 MOO 5, BANGKADI INDUSTRIAL PARK, TIVANON ROAD, TAMBOL BANGKADI, AMPHUR MUANG, PATHUMTHANI 12000, THAILAND.

This manual is also suitable for:

Carrier rbm-a0601upva-ulCarrier rbm-a1201upva-ulCarrier rbm-a1921upva-ul

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