Super Multi System - Toshiba

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8 Introduction Super multi system basic components 3-pipe heat pump with simultaneous heating and cooling This system allows separate operation of each indoor unit in either heating or cooling simultaneously. 3 pipes 3-pipe outdoor unit T-pieces Multi Controller 2 pipes Indoor unit remote controller requesting cooling Cooling operation Indoor unit remote controller requesting heating Heating operation Indoor units Remote controller
Introduction Outline of control system The refrigerant and electrical systems of the Super Multi air conditioner are controlled by the Multi Controller and the outdoor unit microprocessors. All RAV heat pump, R-407C, 4/5 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. A demand signal is determined and transmitted to the Multi Controller microprocessor in the form of operation commands (i.e. ON/OFF, cooling or heating operation mode, operation demand frequency). The Multi Controller microprocessor receives operation commands from all indoor units connected, calculates the accumulative operation command and transmits this information to the outdoor unit interface microprocessor. The interface microprocessor calculates the capacity required for heating or cooling and determines the operation mode of the outdoor unit and the actual frequency of the compressor. Control system diagram Indoor unit 1-A Fan Temp. sensor (TA) Drain pump Indoor unit microprocessor Remote controller 1 - B 1 - C 1 - D 2 - A 2 - B 2 - C 2 - D Multi Controller 1 Capacity rank setting switch Temp. sensor Pulse modulating valve Multi Controller microprocessor Display LED 2-way valve Multi Controller 2 Multi Controller microprocessor Protection unit Comp. sensor Temp. sensor Fan Outdoor unit Pulse modulating valve Interface microprocessor D.O.L. compressor Display LED 2-way valve 4-way valve Communication PCB Protection unit Inverter compressor IPDU Inverter Power supply 9
Page 1: Super Multi System HFC R407C A90-02
Page 4 and 5: 4 Introduction Precautions Please r
Page 6 and 7: Components - 3 pipe system 1. Outdo
Page 10 and 11: 10 Introduction Components Setting
Page 12 and 13: 12 Parts specification Outdoor unit
Page 14 and 15: 14 Parts specification Outdoor unit
Page 16 and 17: MAR-F105HTM8-PE Dimensional drawing
Page 18 and 19: MAR-F105HTM8-PE 18 Wiring diagrams
Page 20 and 21: 20 Wiring diagram Multi Controllers
Page 22 and 23: 22 Refrigeration piping schematic d
Page 24 and 25: 24 Refrigeration piping schematic d
Page 26 and 27: 26 Diagnostic procedure Outdoor uni
Page 28 and 29: 28 Diagnostic procedure Outdoor uni
Page 30 and 31: 9. Outdoor unit - pressure sensor d
Page 32 and 33: 32 Diagnostic procedure Multi Contr
Page 34 and 35: 34 Fault code display Self-diagnost
Page 36 and 37: 04 No communication signal between
Page 38 and 39: 38 Is 4-way valve coil connector co
Page 40 and 41: 40 Is drain pump connected? Does fl
Page 42 and 43: 42 Troubleshooting Diagnostic proce
Page 44 and 45: Check code Status of air conditione
Page 46 and 47: Check code Operation cause [21] 1.
Page 48 and 49: Check code Operation cause [E5] 1.
Page 54 and 55: Check code [A0] Operation cause Dis
Page 58 and 59:
58 C � Does heating indoor fan op
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60 Troubleshooting Diagnostic proce
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62 Troubleshooting Diagnostic proce
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64 Control features Outdoor unit/Mu
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66 Valve and sensor function and op
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68 Valve and sensor function and op
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Leak position check 70 Refrigerant
Page 72 and 73:
Additional refrigerant One Multi Co
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74 Exploded view and service parts
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www.toshiba-aircon.co.uk MADE IN UK
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Super Multi System - Toshiba

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