Mitsumi electronic PLA-A12AA, PLA-A18AA, PLA-A24AA, PLA-A30AA, PLA-A36AA, PLA-A42AA service manual

Contents

Main SERVICE MANUAL SPLIT-TYPE, HEATPUMP AIR CONDITIONERS SPLIT-TYPE, AIR CONDITIONERS No. OC370 REVISED EDITION-B CONTENTS Indoor unit [Model names] [Service Ref.] June 2007 1TECHNICAL CHANGES 2REFERENCE MANUAL SAFETY PRECAUTION 3 3-2. CAUTIONS RELATED TO NEW REFRIGERANT [1] Cautions for service 3-1. ALWAYSOBSERVE FOR SAFETY Page PART NAMES AND FUNCTIONS 4 Indoor Unit Wired remote controller Operation Section Wired remote controller OC370B--1.qxp 07.6.20 2:42 PM Page 6 FC Display Section Wireless remote controller SPECIFICATIONS 5 Page 6NOISE CRITERION CURVES PLA-A12AA PLA-A12AA CEILING PLA-A30AA PLA-A30AA PLA-A24AA PLA-A24AA 7OUTLINES AND DIMENSIONS Unit : inch(mm) D 3-5/16 (84) 3-5/32 (80) 24/30/36/4212/18 1 Liquid pipe 1/2F 8WIRING DIAGRAM Heat exchanger 9REFRIGERANT SYSTEM DIAGRAM 10 TROUBLESHOOTING 10-1. TROUBLESHOOTING < [Procedure] 10-2. MALFUNCTION-DIAGNOSIS METHOD BY REMOTE CONTROLLER [Output pattern A] Errors detected by indoor unit [Output pattern B] Only A-CONTROL [Output pattern B] *1If the beeper does not sound again after the initial Refer to the following tables for details on the check codes. [Output pattern A] Page 10-3. SELF-DIAGNOSIS ACTION TABLE () () Page 10-4. TROUBLESHOOTING BY INFERIOR PHENOMENA Page 10-5. EMERGENCY OPERATION 10-5-1. When wireless remote controller has troubles or its battery is exhausted 10-5-2. When wired remote controller or indoor unit microcomputer has troubles Vane motor (MV) Drain pump (DP) Drain sensor (DS) Fan motor (MF) Page 10-7.TEST POINT DIAGRAM Page Service board MODELS 10-8. FUNCTIONS OF DIP SWITCH AND JUMPER WIRE DISASSEMBLY PROCEDURE Photo 2 Figure 1 Photo 1 11 Photo 6 Photo 4 Photo 5 Photo 3 Figure 2 Photo 7 Photo 8 Photo 9 12 PARTS LIST (non-RoHS compliant) PANEL PARTS PLA-A12AA PLA-A18AA PLA-A24AA PLA-A30AA PLA-A36AA PLA-A42AA PLA-A12AA PLA-A18AA PLA-A24AA PLA-A30AA PLA-A36AA PLA-A42AA PLA-A12AA PLA-A18AA PLA-A24AA PLA-A30AA PLA-A36AA PLA-A42AA 13 RoHS PARTS LIST PANEL PARTS PLA-A12AA 1 PLA-A18AA 1 PLA-A24AA PLA-A30AA 1 PLA-A36AA 1 PLA-A42AA PLA-A12AA PLA-A18AA PLA-A24AA PLA-A30AA PLA-A36AA PLA-A42AA PLA-A12AA PLA-A18AA PLA-A24AA PLA-A30AA PLA-A36AA PLA-A42AA Page TM OC370B--2.qxp 07.6.20 2:41 PM Page 44 HEAD OFFICE : TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN

Mitsumi electronic service manual

Models: PLA-A12AA PLA-A18AA PLA-A24AA PLA-A30AA PLA-A36AA PLA-A42AA