Table Of Contents - Mitsubishi Electric PAA-A18AA1 Service Manual

Table of Contents

1. SAFETY PRECAUTIONS ........................................................................................................ 3
1.1. Before service and electric work .................................................................................... 3
1.2. Devices that use R410A refrigerant .............................................................................. 10
1.3. Before getting started .................................................................................................. 11
1.4. Before servicing or moving the PAA unit - electrical work ............................................... 16
1.5. Before starting the test run ........................................................................................... 18
1.6. To dispose of the PAA unit ........................................................................................... 19
2. INSTALLATION POSITIONS AND CORRESPONDING AIRFLOW DIRECTION ........................ 20
3. SPECIFICATIONS ................................................................................................................. 21
4. INTERNAL PRESSURE DROP ............................................................................................... 22
5. OUTLINES AND DIMENSIONS .............................................................................................. 25
6. WIRING DIAGRAM ................................................................................................................ 28
7. REFRIGERANT SYSTEM DIAGRAM ...................................................................................... 30
8. TEST MODE AND EMERGENCY MODE ................................................................................ 31
9. HUMIDIFIER CONTROL SPECIFICATIONS ............................................................................ 36
9.1. Humidifier ................................................................................................................... 36
9.2. Installation .................................................................................................................. 38
10. ERV (ENERGY RECOVERY VENTILATION) CONTROL ........................................................ 39
10.1. Energy recovery ventilation (ERV) .............................................................................. 39
10.2. Installation ................................................................................................................ 40
10.3. HRV/ERV heating operation for MXZ system ............................................................... 40
11. TROUBLESHOOTING .......................................................................................................... 41
11.1. Cautions on troubleshooting ....................................................................................... 41
11.2. Self-check function, Function Table ............................................................................. 42
11.3. Self-diagnosis action table .......................................................................................... 44
11.4. Troubleshooting by inferior phenomena ....................................................................... 49
11.5. Test point diagram ..................................................................................................... 50
11.5.1. Power supply board ........................................................................................ 50
11.5.2. Indoor controller board .................................................................................... 51
11.6. Trouble criterion of main parts .................................................................................... 52
11.7. Thermistor ................................................................................................................. 53
12. FUNCTIONS OF DIP SWITCH AND JUMPER WIRE ............................................................. 54
13. DISASSEMBLY PROCEDURE .............................................................................................. 55
Specifications are subject to change without notice.
PAA-A18, 24, 30, 36, 42AA1/BA1/CA1
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