Toshiba RAV-SM802KRT-E 48

Troubleshooting (Continued)

Check code	Check code name	Possible causes

[P31]	Other I/U errors	When an error occurs with other units in the group
(New code)	(Group follower I/U error)

When header unit detects E03, L03, L07 or L08 during group operation, “P31” is indicated on follower units in the group and their operation stops. No code or alarm log is displayed on the R/C.

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Contents

Rev. Mar CONTENTS 1. SPECIFICATIONS 1-1. High-WallType(IndoorUnit) Operation characteristic curve <Cooling <Heating <Cooling <Heating 2. CONSTRUCTION VIEWS (EXTERNAL VIEWS) High-WallType RAV-SM562KRT-E/RAV-SM802KRT-E 3. SYSTEMATIC REFRIGERATING CYCLE DIAGRAM 3-1.Hi Wall type RAV-SM562KRT-E/SM802KRT-E 4. WIRING DIAGRAM 4-1.Hi Wall type (Indoor unit) 5. SPECIFICATIONS OF ELECTRICAL PARTS 5-1.Indoor Unit 6. REFRIGERANT R410A 6-1.Safety During Installation/Servicing 6-2.Refrigerant Piping Installation Table 6-2-1Thicknesses of annealed copper pipes Thickness (mm) Outer diameter (mm) R410A R22 Fig. 6-2-1Flare processing dimensions Table 6-2-3Dimensions related to flare processing for R410A Outer A (mm) Nominal Table 6-2-6Flare and flare nut dimensions for R22 Flare nut width Fig. 6-2-2Relations between flare nut and flare seal surface Table 6-2-7Tightening torque of flare for R410A [Reference values] Tightening torque 6-3.Tools 6-4.Recharging of Refrigerant 6-5.Brazing of Pipes (2)Characteristics required for flux (3)Types of flux Noncorrosive flux Activated flux (4)Piping materials for brazing and used braz- ing filler/flux 7. INDOOR UNIT CONTROL 7-1.Indoor Control Circuit INDOOR UNIT CONTROL CIRCUIT (Continued) Control Specifications Page Page Page Page Page Page Page 7-3.P. C. Board of Indoor Unit MCC-1510 Specifications Connector Onboard Optional 8.Troubleshooting (a) Outline of judgment Judging from lamp status of indoor unit Troubleshooting (Continued) Error mode detected by remote controller or central controller Unit) (Indoor Table Code Check Unit) (Outdoor Table Code Check Failure mode detected by indoor unit Failure mode detected by outdoor unit (Representative codes) Main Remote Controller (RBC-AMT31E) (1) Checking (2) Checking Error Log Numbers appearing on the LCD <Seven-segmentdisplay TCC-LINKCentral Control Remote Controller (TCB-SC642TLE) Page Page Page Page Page Page Page Page Page Page Page Page Relationship Between Temperature Sensor Resistance and Temperature 9.HOW TO REPLACE SERVICE BOARD OF INDOOR UNIT Requirements When Replacing Service Board of Indoor Unit [Replacement Procedures] Case *1 (see page 51) HOW TO REPLACE SERVICE BOARD OF INDOOR UNIT (Continued) *1 Reading EEPROM Data (see page 52) *2 Replacing Service Board and Power ON *3 Writing Setting Data in EEPROM <Remote Controller Example of Setting Contents to be Written Down (Code Table) Onboard Component Layout DIP switch setting DIP switches (SW01, SW02) EEPROM (IC10) 10.ON-SITESETTING AND OTHERS ON-SITESETTING AND OTHERS (Continued) 1.2 Forcible Defrost Setting by Remote Controller (wired R/C only) Preliminary operation Execution procedure 1.3 Indication of Onboard LEDs 1.4 JRA Capacity Measurement Mode (wired R/C only) 1.5 Function Select Setting (wired R/C only) Function Select Code (DN) Table 1.6 Wiring and Setting for Remote Controller Double R/C control (when controlling by two remote controller switches) Controlling one indoor unit by 2 remote controllers Setting Setting to use a wired remote controller as follower R/C: 1.7 Monitoring Function of Remote Controller Switch Calling indication of sensor temperature code Calling error log <Group Control Operation <An example of system Indoor Unit Power ON Sequence 3. Connections for Central Control 3.1Connections for TCC-LINKCentral Control 3.1.1 Functions 3.1.2 Connection Diagram 3.1.3 TCC-LINKConnections 3.1.4 Wiring Specifications 3.1.5 Setting Onboard Switches 3.1.6 Onboard Switch Setting Procedure ON-SITESETTING AND OTHERS 3.1.7Setting Addresses Overview (1)Manual setting/change of indoor unit refrigerant line addresses (2)Manual setting/change of indoor unit refrigerant line addresses 3.1.8 Central Control Address Number Setting 1. Setting by Remote Controller on Indoor Unit Side 11.ADDRESS SETTING 2. Address Setting and Group/Twin/Triple Control <Definition of terms 2. Address Setting and Group/Twin/Triple Control [1]System Configuration [2] Examples of Auto Address Setting from No Address Setting (Manual setting by remote controller) ADDRESS SETTING (Continued) ■Checking location of indoor unit number (1) To find the address of indoor unit whose location is clear (2) To find the location of indoor unit from its address 12. EXPLODED VIEWS AND PARTS LIST High-WallType Part Page TOSHIBA CARRIER (THAILAND) CO.,LTD