Toshiba MAR-M102HTM8-PE Service Manual
  1. Manuals
  2. Brands
  3. Toshiba Manuals
  4. Air Conditioner
  5. MAR-M102HTM8-PE
  6. Service manual
Toshiba MAR-M102HTM8-PE Service Manual

Toshiba MAR-M102HTM8-PE Service Manual

Hide thumbs Also See for MAR-M102HTM8-PE:
Table of Contents

Advertisement

Quick Links

Download this manual
SERVICE MANUAL
AIR-CONDITIONER
Outdoor Unit
Multi Controller
Outdoor Unit
Multi Controller
2-PIPE SUPER MULTI, HEAT PUMP
MAR-M102HTM8-PE
RBM-Y1032-PE (3-way)
RBM-Y1042-PE (4-way)
3-PIPE SUPER MULTI, HEAT PUMP WITH
SIMULTANEOUS HEATING AND COOLING
MAR-F102HTM8-PE
RBM-Y1032F-PE (3-way)
RBM-Y1042F-PE (4-way)
FILE NO. A90-9819
Printed in UK March 1998 s

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the MAR-M102HTM8-PE and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Toshiba MAR-M102HTM8-PE

Summary of Contents for Toshiba MAR-M102HTM8-PE

  • Page 1 FILE NO. A90-9819 SERVICE MANUAL AIR-CONDITIONER 2-PIPE SUPER MULTI, HEAT PUMP Outdoor Unit MAR-M102HTM8-PE Multi Controller RBM-Y1032-PE (3-way) RBM-Y1042-PE (4-way) 3-PIPE SUPER MULTI, HEAT PUMP WITH SIMULTANEOUS HEATING AND COOLING Outdoor Unit MAR-F102HTM8-PE Multi Controller RBM-Y1032F-PE (3-way) RBM-Y1042F-PE (4-way) Printed in UK March 1998 s...

  • Page 2: Table Of Contents

    CONTENTS SUPER MULTI SYSTEM BASIC COMPONENTS..................OUTLINE OF CONTROL SYSTEM......................SPECIFICATIONS............................CONSTRUCTION VIEWS.......................... WIRING DIAGRAMS..........................REFRIGERANT CYCLE DIAGRAMS......................SELF DIAGNOSTIC DISPLAY INFORMATION..................FAULT CODE DISPLAY INFORMATION....................CONTROL FEATURES..........................10. VALVE & SENSOR FUNCTION AND OPERATION................11. PRESSURE TEST AND DEHYDRATION....................12.

  • Page 3: Super Multi System Basic Components

    1. SUPER MULTI SYSTEM BASIC COMPONENTS 1.1 2-Pipe Heat Pump. This system allows separate operation of each indoor unit in heating or cooling. Heating operation has priority over cooling. In the event of an indoor unit requesting cooling operation when another is in heating mode, the "PREHEAT DEFROST"...

  • Page 4: Outline Of Control System

    2. OUTLINE OF CONTROL SYSTEM The refrigerant and electrical systems of the Super multi air conditioner are controllled by the Multi controller and the Outdoor unit microprocessors. All RAV Heat Pump series Indoor units are compatible with the Super multi system. i.e. 1 ~ 5 HP. For system operation, initially the microprocessor in each Indoor unit calculates the difference between the current room temperature (TA) and the requested temperature which has been set on the Remote controller.
  • Page 5 Minimum Code No. Maximum Code No. Connected Units 10HP 2-PIPE (MAR-M102HTM8-PE) 10HP 3-PIPE (MAR-F102HTM8-PE) The option is available to use a 3-Way Multi controller (for 3 Indoor units), or a 4-Way Multi controller (for 4 Indoor units). If more than 4 Indoor units are required for an Outdoor unit, 2 multi controllers should be used with T-Piece connections.

  • Page 6: Specifications

    3. SPECIFICATIONS 3.1 Specification of Outdoor unit. MAR-M102HTM8-PE MAR-F102HTM8-PE Model Name 25.0 (28.0) Cooling capacity (kW) 28.0 (31.5) Heating capacity (kW) Power supply 380 – 415V, 3-phase, 50Hz Operating current 15.7 (17.2) Power consumption 10,600 (11,500) Power factor 97 (97) Operating current 17.7 (15.5)
  • Page 7 3.2 Specifications of Outdoor unit Refrigerant Cycle Parts Model Name MAR-M102HTM8-PE MAR-F102HTM8-PE Model name HV1201CW-Y12 Motor type 3-phase induction motor Power supply 380 – 415V, 3-phase, 50Hz Output (kW) Comp- ressor 2/2 (Inverter side/Non-inverter side) Pole motor 1.49/2.51 Coil resistance (Ω)
  • Page 8 3.3 Specifications of Outdoor unit Inverter Assembly Parts. Model Name MAR-M102HTM8-PE MAR-F102HTM8-PE Power supply 380 – 415V, 3-phase, 50Hz Output voltage at operating frequency of 60Hz AC 266V IGBT MG50Q6ES11 Relay LY1F (AC 240V) Fan motor running capacitor EAG45M605UF1, 6µF450V...
  • Page 9 3.4 Specification of 2-Pipe Multi Controller Parts. Model Name RBM-Y1032-PE RBM-Y1042-PE Pulse modulating valve EV23RC7, Coil DC 12V At 0ºC = 32.8kΩ, 25°C = 10kΩ, 50°C = 3.6kΩ Temperature sensor FS-085-0031 Float switch Model name FT69 Power supply transformer Primary side:AC240V, Secondary side:AC12V Specification Relay (PC board) G2R-117P, Coil DC 12V...

  • Page 10: Construction Views

    4. CONSTRUCTION VIEWS 4.1 2-Pipe Outdoor Unit (MAR-M102HTM8-PE). Rear air inlet. 1290 4 slots (15 x 20) for fixing bolts. Air outlet. 1100 ø 610 Side air inlet. Refrigerant pipe connection. 140 65 Liquid Ø 15.9 Gas Ø 28.6 2 x Fork lift slots.
  • Page 11 4.2 3-Pipe Outdoor Unit (MAR-F102HTM8-PE). Rear air inlet. 1290 4 slots (15 x 20) for fixing bolts. Air outlet. 1100 ø 610 Side air inlet. Refrigerant pipe connection. Suction gas Ø 28.6 Discharge gas Ø 19.0 Liquid Ø 15.9 2 x Fork lift slots. (150 x 60) Piping knockout.
  • Page 12 4.3 Multi Controllers.

  • Page 13: Wiring Diagrams

    5. WIRING DIAGRAMS 5.1 2-Pipe Outdoor Unit (MAR-M102HTM8-PE) Symbol Part Name Notes : Compressor 1, 2 Fan Motor 1, 2 1. The dashed lines indicate wiring on site. Electric Electromagnetic contactor 1, 2, 3 indicate terminal blocks, and 3 ø...
  • Page 14 3-Pipe Outdoor Unit (MAR-F102HTM8-PE) Notes : Symbol Part Name Compressor 1, 2 1. The dashed lines indicate wiring on site. Fan Motor Electric Power indicate terminal blocks, and 1, 2 3 ø starter Noise Electrolytic Transistor numbers within them are terminal numbers. Electromagnetic 1, 2, 3 Rectifier...
  • Page 15 5.3 2-Pipe Multi Controller (RBM-Y1032-PE, RBM-Y1042-PE). Spark 7 Segment LED killer LD1 LD2 Capacity rank setting Display selector switch NO NC INDOOR INDOOR INDOOR INDOOR OUTDOOR UNIT A UNIT B UNIT C UNIT D UNIT • The dashed lines indicate wiring on site. Symbol Part Name •...
  • Page 16 5.4 3-Pipe Multi Controller (RBM-Y1032F-PE, RBM-Y1042F-PE). Spark killer 7 Segment LED Capacity rank setting Display selector switch Outdoor Indoor Indoor Indoor Indoor Unit unit A unit B unit D unit C Symbol Part Name PMV A, B, C, D Pulse modulating valve Th A, B, C, D, X Temperature sensor Power transformer...

  • Page 17: Refrigerant Cycle Diagrams

    6. REFRIGERANT CYCLE DIAGRAMS 6.1 2-Pipe system. SV4 (For No. 2 compressor start up) SV2 (For gas balance and hot gas bypass)
  • Page 18 6.2 3-Pipe system.

  • Page 19: Self Diagnostic Display Information

    7. SELF DIAGNOSTIC DISPLAY INFORMATION 7.1 MAR-M102HTM8-PE, 2-Pipe Outdoor Unit. Malfunction judgement is performed using the self-diagnostic function of the outdoor unit. The combination of the display switch and the 8 LED's (LED 1 ~ LED 8) indicate the diagnostic details.
  • Page 20 7.1.2 Display switch set to position "0". LED 1 On: Receiving serial signal from multi controller 1 LED 2 On: Sending serial signal to multi controller 1 LED 3 On: Receiving serial signal from multi controller 2 LED 4 On: Sending serial signal to multi controller 2 LED 5 On: Receiving serial signal from inverter control board LED 6...
  • Page 21 7.1.5 Display switch set to position "3". LED 1 ThD1 sensor abnormality LED on: Sensor open / short circuit LED 2 ThD2 sensor abnormality LED 3 ThS sensor abnormality LED 4 High pressure abnormality LED on: High pressure abnormal (detected by pressure sensor) LED 5 Pressure sensor abnormality LED on: Pressure sensor abnormal...
  • Page 22 7.2 RBM-Y1032-PE / RBM-Y1042-PE, 2-Pipe Multi Controller. The combination of the display switch and the two 7 segment LED's (LD1, LD2) indicate the diagnostic details. MCC - 1210 7 Segment LED LD 1 LD 2 Capacity rank switches. Unit A Unit C Unit B Unit D...
  • Page 23 7 Segment LED display. LD 1 LD 2 Indication Switch Position Receiving Sending Receiving Sending Receiving Receiving Sending Sending Receiving Sending Serial from from from from from Outdoor Outdoor signal unit B unit A unit A unit D unit D unit C unit C unit B...
  • Page 24 7.2.3 Display switch set to position "11", "12", "13" and "14". Multi controller - ThA, B, C, D and X sensor conversion table. Tempera- Tempera- Tempera- Tempera- Display Display Display Display ° ° ° ° ture ( ture ( ture ( ture ( 12.0 23.0...
  • Page 25 7.3 MAR-F102HTM8-PE, 3-Pipe Outdoor Unit. Malfunction judgement is performed using the self-diagnostic function of the outdoor unit. The combination of the display switches (SW1, SW2) and the LED's (LD 71 ~ LD 74) indicate the diagnostic details. Electrolytic Power Capacitors Transistor MCC-1252 Interface control board...
  • Page 26 7.3.1 Display switch SW1 set to position "0" Communication serial signals and the system operating status are displayed by changing display switch SW2. Display 7 Segment LED Display Switch Indication LD71 LD72 LD73 LD74 Position Between Between Between Non-inverter M/C (2) Inverter compressor M/C (1)
  • Page 27 Display code conversion table - Instruction frequency from Multi Controller. Display code Frequency conversion 37.9 41.0 10.0 13.0 19.3 22.4 25.5 28.6 31.7 34.8 16.2 value (Hz) Display code Frequency 87.5 90.0 47.2 50.3 56.5 62.7 72.0 78.2 81.3 84.4 44.1 53.4 59.6...
  • Page 28 7.3.4 Display switch SW1 set to position "3" The indoor unit capacity rank setting is displayed. Display 7 Segment LED Display Switch Indication LD71 LD72 LD73 LD74 Outdoor unit HP 8 HP [8], 10 HP [A] Unit A Capacity rank of Unit B indoor unit connected to...
  • Page 29 7.3.6 Outdoor unit - Pressure sensor data. Pressure Pressure Pressure Pressure Display Display Display Display (kgf/cm (kgf/cm (kgf/cm (kgf/cm 17.5 24.0 11.0 18.0 24.5 11.5 18.5 25.0 12.0 19.0 25.5 12.5 19.5 26.0 13.0 20.0 26.5 13.5 20.5 27.0 14.0 21.0 27.5 14.5...
  • Page 30 7.3.8 Outdoor unit - ThS, TE, TO sensor data. Tempera- Tempera- Tempera- Tempera- Display Display Display Display ° ° ° ° ture ( ture ( ture ( ture ( 22.0 35.0 -20.0 -15.0 10.0 23.0 36.0 11.0 24.0 37.0 -10.0 -5.0 12.0 25.0...
  • Page 31 7.4 RBM-Y1032F-PE, RBM-Y1042F-PE, 3-Pipe Multi Controller The combination of the display switch and the four 7 segment LED's (LD101 - LD104) indicate the diagnostic details. MCC - 1223 7 segment LED Unit A Unit C Unit B Unit D Display switch Capacity rank switches Multi controller control board 7 Segment LED Display...
  • Page 32 7.5 Inverter control board, 2-Pipe and 3-Pipe Outdoor Units. The combination of the dip switch SW1 and the four LED's (D1 ~ D4) indicate the inverter compressor speed and diagnostic details. MCC - 1251 Inverter control board SW1 position Display information Inverter compressor demand frequency Inverter compressor actual frequency Fault code indication...
  • Page 33 7.5.2 Inverter fault code indication. Remote controller fault code LED Display Fault indicated O O O ¤ Inverter high pressure or compressor winding temperature ¤ O O O Inverter compressor winding short circuit protection O O O O TE sensor open / short circuit (2-Pipe only) O ¤...

  • Page 34: Fault Code Display Information

    8. FAULT CODE DISPLAY INFORMATION The remote controller, multi controller and outdoor unit have the facility to display fault codes which are used to determine any malfunction of the system. • The remote controller is provided with a "check" button and a malfunction check display. •...
  • Page 35 8.2 Details of the malfunction check display The following display sequence occurs when the check button is pressed for 1 second. (Note: Up to 16 indoor units can be connected to one remote controller using group control). 1. The number of compressor "ON" actuations for No.1 outdoor unit is displayed for 2 seconds, followed by: 2.
  • Page 36 8.3 2-Pipe system fault code summary. Fault codes can be identified from either the Remote controller, Multi controller or Outdoor unit as shown in the diagram below. Remote controller fault code Multi controller display switch position 1 Outdoor Unit No communication INV to I/F No communication I/F to INV No communication I/F to INV No communication M/C to O/D...
  • Page 37 8.4 3-Pipe system fault code summary. Fault codes can be identified from either the Remote controller, Multi controller or Outdoor unit as shown in the diagram below. Remote controller fault code Multi controller display switch position 1 Outdoor Unit No communication I/F to INV No communication I/F to INV No communication INV to I/F Refer to inverter control board diagnostics...
  • Page 38 8.5 Fault codes displayed at the Remote controller. Diagnostic Funtions Notes Fault Status of Air Sympton Code Conditioner Outdoor unit 1. Wiring fault between I/D and M/C, or M/C and O/D SERIAL SIGNAL FAULT stops. Interface control board, or O/D Interface control board and O/D Inverter control board.
  • Page 39 Diagnostic Funtions Notes Fault Status of Air Sympton Code Conditioner Operation 1. Inverter compressor fault (overload). INVERTER stops COMPRESSOR FAULT 2. Check the power supply, wiring and compressor. 1. Fault in the current detection circuit of the Inverter Operation INVERTER control board.
  • Page 40 8.6 Fault codes displayed at the Multi controller. Display switch set to position "1". Note Fault code Fault ThA sensor fault ThB sensor fault Sensor open / short circuit. ThC sensor fault ThD sensor fault ThX sensor fault No initial communication between M/C and O/D Communication between M/C and O/D Check the wiring and control boards.

  • Page 41: Control Features

    9. CONTROL FEATURES CONTROL DIAGRAM DESCRIPTION Defrost • During heating operation, defrost is controlled by the Outdoor unit heat exchanger (Heating mode) Temp. temperature sensor (TE). (ºC) • When the cumulative operating time with TE in zone [A] has amounted to 25 minutes, defrost operation starts.
  • Page 42 CONTROL DESCRIPTION a. Changeover between cooling and heating operations for each indoor unit. Simultaneous Cooling / Heating The solenoid valves inside the Multi controller are energised when operation operation commands are sent from the Indoor units. 3-Pipe ONLY • SVS valve (suction side) opens for a cooling command. •...

  • Page 43: Valve & Sensor Function And Operation

    10. VALVE & SENSOR FUNCTION AND OPERATION 10.1 Multi controller - Valve functions, 2-Pipe and 3-Pipe. Symbol Description of Function Name of Valve This opens to the extent corresponding to the PMV (A, B, C, D) Flow rate control valve capacity and performance required of each Indoor unit.
  • Page 44 10.3 Outdoor unit - Valve functions, 2-Pipe and 3-Pipe. Symbol Description of Function Name of Valve OFF: Normal operation. 4-way reversing valve ON: Low load condition when sub heat exchanger Cooling operation is required. Used in combination with SV15 20SF (3-Pipe ONLY).
  • Page 45 10.4 Outdoor unit - Valve operation. For the 2-Pipe system only cooling operation, heating operation and valve 20SF are applicable. PMV2 20SF SV15 SV13 SV14 SV16 Outdoor Operation Mode Outdoor main heat – exchanger Cooling operation Sub heat exchanger – Heating operation –...
  • Page 46 10.6 Multi controller sensor operation. According to a difference between the evaporator outlet temperature and (ThA, B, C, D) saturation temperature (ThX): Performs Superheat control. Temperature (cooling operation) sensor Determines the degree of opening of PMV 2. (cooling dominant operation - 3-Pipe ONLY) 10.7 Outdoor unit - Sensor and switch operation.

  • Page 47: Pressure Test And Dehydration

    11. PRESSURE TEST, EVACUATION AND DEHYDRATION When Multi controllers are delivered from the factory the PMV's are in the fully open position. After power is supplied to the system the PMV's assume their required operating position, including closed. Before performing the pressure test or evacuation ensure that all Multi controller PMV's are in the fully open position as shown in the "Manual operation of valves"...

  • Page 48: Additional Refrigerant

    Warranty will be void. • The piping length is the actual one way length of the pipe at the liquid side of all branch circuits. • The initial charge is: Model Refrigerant charge MAR-M102HTM8-PE 18.6 kg MAR-F102HTM8-PE 21.6 kg Indoor unit branch pipes RAV - 10* 0.030 kg/m...

  • Page 49: Exploded Views And Service Parts List

    13. EXPLODED VIEWS AND SERVICE PARTS LIST 13.1 Outdoor Units (MAR-M102HTM8-PE, MAR-F102HTM8-PE)
  • Page 50 13.2 2-Pipe refrigeration assembly parts (MAR-M102HTM8-PE) 13.3 3-Pipe refrigeration assembly parts (MAR-F102HTM8-PE)
  • Page 51 Location Location Part Part Description Description 43147529 Strainer 43A46001 Solenoid coil, 4-way valve 43147537 Strainer 43A46002 Solenoid coil assembly (3 coils: 4-way, SV5, SV13) 43195185 Cushion, under, compressor 43195186 Cushion, upper, compressor 43A46003 Solenoid coil assembly 43195198 Spacer (3 coils: SV14, SV15, SV16) 43107200 Spring, base 43A46005 Solenoid coil assembly 43146367 Switch, high pressure (20PS-B)
  • Page 52 13.4 Outdoor unit electrical parts assembly (MAR-M102HTM8-PE, MAR-F102HTM8-PE)
  • Page 53 Location Location Part Part Description Description 43131031 G-Transistor, MG50Q6ES11 43060859 Fuse Block 4316V028 Diode, SR130G-160 43169618 Noise Filter 43150214 TRS-Thermostat, TRC 43169620 Ferrite Core TR-100B10SPT3A 43169616 Noise Filter, AC 43169617 Noise Filter, DC 43154148 Return Lock STR-4AB 43150274 Sensor - ThD1 43169619 Diode Clipper Assembly 43150275 Sensor - ThD2 43160438 Terminal...
  • Page 54 13.5 2-Pipe Multi controller (RBM-Y1032-PE, RBM-Y1042-PE) Location Part Description 43019604 Holder, Sensor 43A47019 Strainer 43046269 Pulse modulating valve 43A47018 Capillary tube 0.8 diameter 43146283 Check valve 43146540 Expansion valve 43151231 Float switch 43157253 Panel heater (RBM-Y1032-PE) 43157252 Panel heater (RBM-Y1042-PE)
  • Page 55 13.6 3-Pipe Multi controller (RBM-Y1032F-PE, RBM-Y1042F-PE) Location Location Part Part Description Description 43157253 Panel heater 43019604 Holder, Sensor 43146443 Solenoid coil (RBM-Y1032F-PE) 43046151 2 way valve 43189026 Insulator, liquid A 43046156 Check valve 43189027 Insulator, liquid B 43046269 Pulse modulating valve 43189028 Insulator, header A (RBM-Y1042F-PE) 43046270 2 way valve...
  • Page 56 13.7 2-Pipe Multi controller electrical parts assembly (RBM-Y1032-PE, RBM-Y1042-PE) FT69 Note: Terminal D is present on RBM-Y1042-PE unit only. Location Location Part Part Description Description 43158139 Transformer (FT69) 43150166 Sensor (ThX) 4316V026 PC board assembly (MCC-1210) 43151242 Micro-switch 43150162 Sensor (ThA) 43A60001 Terminal block 4P 43A60008 Fuse T1A 43150163 Sensor (ThB)
  • Page 57 13.8 3-Pipe Multi controller electrical parts assembly (RBM-Y1032F-PE, RBM-Y1042F-PE) FT69 Note: Terminal D is present on RBM-Y1042F-PE unit only. Location Part Location Part Description Description 43158139 Transformer (FT69) 43150166 Sensor (ThX) 43169627 PC board assembly (MCC-1222) 43151242 Micro-switch 43A60001 Terminal block 4P 43150162 Sensor (ThA) 43150163 Sensor (ThB) 43060776 Terminal block 2P...
  • Page 58 TOSHIBA (U.K.) LTD. AIR CONDITIONER DIVISION PORSHAM CLOSE, BELLIVER INDUSTRIAL ESTATE, PLYMOUTH, PL6 7DB, U.K.

This manual is also suitable for:

Rbm-y1032-peRbm-y1042-peMar-f102htm8-peRbm-y1032f-peRbm-y1042f-pe

Table of Contents