RBC-16DIF1-PE Multi Controller Service Manual A90-0028
Contents
1. 3 D a e Inverter z L qee microprocessor 4 Aj ____ H Multi controller 4 Ser unit 2 2 Combination of Multi Controllers and Indoor Units Each Indoor unit is allocated a code number according to its capacity rank Refer to the table below Capacity Rank of Indoor unit Code No No connection 0 10 2 13 3 16 4 26 6 36 8 46 10 Example Indoor unit model RAV 364UH PE capacity rank 36 therefore code No 8 Each indoor unit s capacity rank must be registered on the Multi Controller by the capacity rank setting switches If the capacity code number is not set correctly the desired cooling or heating capacity will not be obtained This could cause the system to malfunction If the total of the capacity codes exceeds 32 10HP outdoor unit the air conditioner will not function Multiple indoor units may be connected to each outdoor unit providing the total indoor code does not exceed the limits shown below Number of Maximum No of Minimum Code Maximum Code Maximum System Multi Conrollers Connected Units No No Per M C Code No Maximum Codes Possible for each Multi Controller Ensure maximum system code is less than or equal to the stated value This accessory is only required if more than 8 indoor units are to be connected Example of Maximum System Codes 27 The numbers of Multi Controllers and Interface kits require2. MAR M104HTM8 PE 16 0kg 36 3kg 10HP 3 Pipe Simultaneous MAR F104HTM8 PE 19 0kg 34 3kg To calculate the additional refrigerant volume follow the steps below 1 The Main Pipe length is taken as the addition of pipes X Y and Z 2 The additional gas charge for the Main Pipes is dependant on which outdoor unit is installed only use the line which matches your particular outdoor unit The Sub pipe length is taken as the addition of the two longest of the four if 4 Multi Controllers The Branch pipe lengths must be individually calculated using the 8 longest pipes Do not attempt to add gas above the maximum shown in the table above o o e w For systems with 2 or less Multi Controllers refer to the additional gas charge section of the Installation Manual supplied with the Super Multi Outdoor Unit Indoor Table 1 Branch Pipes RAV 10 0 030 kg m RAV 13 0 030 kg m RAV 16 0 030 kg m RAV 26 0 045 kg m RAV 36 0 045 kg m Main Branch RAV 46 0 045 kg m Main Pipe do Pipe Z Sub Pipes Pipes Example RAV 464CH PE 5 RAV 46 Main Pipe Y Outdoor Pipe Additional Gas Metre Additional Gas MAR C104 Main Pipe X Y Z minus 2m 0 140 kg m MAR M104 Main Pipe X Y Z minus 2m 0 190 kg m MAR F104 Main Pipe X Y Z minus 2m 0 140 kg m 1st Longest Sub Pipe minus 1m 0 125 kg m 2nd Longest Sub Pipe minus 1m 0 125 kg m Refer to Table 1 Refer to Table 1 Refer to T
3. SELF TESTING PROCEDURE Built into the DIF microprocessor is a self testing programme This can be used to determine if there is any faults with the PCB 6 1 Procedure i Ensure system is electrically isolated ii Disconnect connector CN1 iii Set DSW1 as follows 1 amp 3 ON 2 amp 4 OFF iv Connect 230V AC supply to CN1 1 and CN1 3 v Connect CN1 5 and CN1 9 together vi Apply power and press SW1 for 2 seconds vii Check LED1 it should repeatedly flash 3 times at 2 5Hz viii Disconnect power ix Disconnect CN1 5 and reconnect it to CN1 7 x Apply power and press SW1 for 2 seconds xi Check LED1 it should repeatedly flash 4 times at 2 5Hz xii If any other number of flashes are displayed then the PCB is faulty xiii Disconnect power set DSW1 as follows 1 4 OFF xiv Remove all connections to CN1 and replace original connector to CN1 6 2 PCB Layout O SIEM o O LED1 Press For 2 Seconds 7 FAULT CODE DISPLAY INFORMATION The remote controller Multi Controller Dual Interface and the outdoor unit have the facility to display fault codes which are used to determine any malfunction of the system e The remote controller is provided with a check button and a check display e The Multi Controllers and outdoor units are provided with display switches and LED displays e The Dual Interface is provided with an LED display Initially malfunctions can be identified fr
4. 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 The Multi Controller microprocessor receives operation commands from all the indoor units connected then calculates the accumulative operation command and transmits this information to the Dual Interface microprocessor The Dual Interface microprocessor receives the accumulative operation commands from both the Multi Controllers then combines these signals and transmits this information to the outdoor unit Interface microprocessor The Interface microprocessor calculates the capacity required for cooling and or heating and determines the operation mode of the outdoor unit and the actual frequency of the compressor 2 1 Control System Diagram Indoor unit 1 A Multi controller 1 Outdoor unit Protection unit Comp sensor Temp sensor Pulse modulating valve Interface microprocessor D O L compressor Display LED 2 way valve Je Multi controller 2 Fan 3 A L ei Multi controller menos DEZ Inverter compressor 3 C Je Li
5. TOSHIBA FILE NO A90 0028 SERVICE MANUAL ACCESSORY 16 1 SUPER MULTI DUAL INTERFACE RBC 16DIF1 PE Printed in UK March 2000 CONTENTS 16 1 SUPER MULTI SYSTEM BASIC COMPONENTS OUTLINE OF THE CONTROL SYSTEM SPEGIFIGATIONS 4 4284 vo cot 28 0 O Dee E a a ee ge AT CONSTRUCTION VIEWS WIRING DIAGRAM ie ili a rr ak ee A e aad oa eee PGB SELF TESTING PROCEDURE prestre ERRE RR E Ea FAULT CODE DISPLAY INFORMATION ADDITIONAL REFRIGERANT SERVICE PARTS LIST O ON DA A O N SUMMARY The units referred to within this manual conform with the protection requirements of Directives 89 336 EEC Electromagnetic Compatibility and 73 23 EEC Low voltage Note 1 For details on the Outdoor unit installation the Indoor units or Remote Controllers refer to the relevant literature i e Installation Instructions supplied with the units or Service Manuals relevant to the Indoor units Note 2 Operatives handling refrigerants must be suitably qualified in accordance with local and national codes of practice and statutory requirements Note 3 Electrical work should be in accordance with all relevant codes of practice and should be carried out by suitably qualified personnel Note 4 Metric Imperial pipe conversions Diameter mm 6 4 9 5 12 7 15 9 19 0 22 0 28 6 Nominal diameter inch 1 4 3 8 1 2 5 8 3 4 7 8 11 8 Note 5 Within this manual O D Outdoor unit M C Mul
6. able 1 Refer to Table 1 Refer to Table 1 Refer to Table 1 Refer to Table 1 Refer to Table 1 Total Additional Gas Charge ti 1st Longest Branch Pipe minus 2m 2nd Longest Branch Pipe minus 2m 3rd Longest Branch Pipe minus 2m Ath Longest Branch Pipe minus 2m 5th Longest Branch Pipe minus 2m 6th Longest Branch Pipe minus 2m 7th Longest Branch Pipe minus 2m 8th Longest Branch Pipe minus 2m xX X KK KK KK KK KK X 13 9 SERVICE PARTS LIST Only the parts listed below are available as service items Reference Number Service Part Number Description 1 43A69015 Dual Interface PCB 2 43A60001 4 Pole Terminal Block SI TOSHIBA AIR CONDITIONING PORSHAM CLOSE BELLIVER INDUSTRIAL ESTATE PLYMOUTH PL6 7DB U K A division of Toshiba Carrier UK Ltd www toshiba aircon co uk
7. at Pump system Heating has priority over cooling therefore DSW1 2 should be always set in the OFF position 7 2 3 DSW1 3 8 4 The type of system can be set using these switches see table below DSW1 4 DSW1 3 System Type Select OFF OFF Auto OFF ON Self Test ON OFF 2 Pipe ON ON 3 Pipe 7 2 4 Factory Default Settings Switch Default DSW1 1 OFF DSW1 2 OFF DSW1 3 OFF DSW1 4 OFF 8 ADDITIONAL REFRIGERANT Set the service valves to the fully open position The Super Multi outdoor units contain sufficient refrigerant to operate an installation having 5 metres of pipework factory refrigerant charge Refer to the diagram below when calculating the amount of additional refrigerant required use only HFC 407C The total refrigerant charge must be calculated by weight and within a tolerance of 50g Prolonged operation with either an overcharge or deficiency in refrigerant will lead to loss of performance increased running costs and will cause damage to the system Warranty will be void Always record the amount of additional refrigerant the piping length and the head drop onto the label situated on the cover of the electrical box The piping length is the actual one way length of the liquid pipe The initial charge is Description Model Refrigerant Charge Maximum Gas Charge 10HP 2 Pipe Cooling Only MAR C104M8 PE 9 0kg 26 6kg 10HP 2 Pipe Heat Pump
8. d for more than 8 units are shown below Number of units Number of 3 Way M C Number of 4 Way M C ae 1 8 Existing System 0 9 3 0 1 10 2 1 1 11 1 2 1 12 0 3 1 13 3 1 2 14 2 2 2 15 1 3 2 16 0 4 2 3 SPECIFICATIONS 3 1 Specification of the Dual Interface Model Name RBC 16DIF1 PE System Compatibility MAR C104M8 PE MAR M104HTM8 PE MAR F104HTM8 PE Specifications are subject to change without notice Power Supply 220 240V 1 Phase 50Hz Power Consumption 8W Dimensions 296 x 200 x 64 mm Net Weight 2 0kg Colour White 296 2 1 4 CONSTRUCTION VIEWS TOSHIBA AIR CONDITIONING RBC 16D1F1 PE 16 Wey Super Multi Dual interface CAUTION LIYE PARTS e 35 215 5 WIRING DIAGRAM WIRING DIAGRAM SUPER MULTI 16 1 DUAL INTERFACE Super Multi Outdoor 16 1 Dual Interface Multi Controllers IT re el MIC 1 Oy i MICI lo er E TA E fe Power supply I Seo I adi i M C 2 A a BH I ol a M C 2 To enable the use of 16 indoor units an additional interface assembly connected to M C 2 on the Super Multi Outdoor is required er amp Shows terminal block and figures terminal numbers Broken lines show wiring at site 6 PCB
9. om the remote controller check display Further details can be obtained from the Multi Controller Dual Interface and outdoor unit control PCB s For details on all the codes generated from either the remote control Multi Controller or the outdoor unit please refer to the relevant Super Multi Service Manual 7 1 Dual Interface Fault Codes The dual interface has a LED which is used to display fault codes see diagram below This then can be used to trace the system error The table below shows the meaning of the faults which can be displayed If two or more faults are detected then only the fault with the highest priority will be displayed Fault Description Number of Flashes Priority Power supply sag temporary voltage drop 1 1 Communication type error DSW1 setup incorrect 2 2 Received error from M C 1 3 3 Received error from M C 2 4 4 Received error from Outdoor Unit 5 5 None 6 6 None 7 7 8 8 Error receiving signal from Outdoor Unit O SE o swi O Fault Display LED1 11 72 DSW1 Setup Switch Function DSW1 1 Communication Time Base DSW1 2 Priority Select Heating 2 Pipe Heat Pump Only DSW1 3 Communication Type DSW1 4 Communication Type 7 2 1 DSW1 1 This switch in normal operation should remain OFF It is only required to be set ON for the PCB self test procedure 7 2 2 DSW1 2 System priority affects only the 2 Pipe He
10. ti controller I D Indoor unit R C Remote Controller DIF Dual Interface 1 16 1 SUPER MULTI SYSTEM BASIC COMPONENTS 1 1 16 1 Super Multi Systems The three systems which can be used with the 16 1 Dual Interface are e 2 Pipe Cooling only R407C e 2 Pipe Heat Pump R407C e 3 Pipe Heat Pump with simultaneous heating and cooling R407C 1 1 1 2 Pipe Cooling Only This system allows operation of each indoor unit in cooling 1 1 2 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 STANDBY will be displayed on the remote controller 1 1 3 3 Pipe Heat Pump with simultaneous heating and cooling This system allows separate operation of each indoor unit in either heating or cooling simultaneously 1 2 System Diagram 2 or 3 Pipe Outdoor Unit T Pieces AS Multi controller E Multi controller 2 EC lt lt T Piec Multi controller NS 2 3 Pipes lt sa controller de IT N a 2 N gt 2 OUTLINE OF THE 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 R407C 4 series indoor units are compatible with the Super Multi system i e 1 5 HP For system operation initially the
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