Table Of Contents - Toshiba RAS-M10SMUV-E Service Manual

ADOPTION OF NEW REFRIGERANT
This Air Conditioner is a new type which adopts a new refrigerant HFC (R410A) instead of the conventional refriger-
ant R22 in order to prevent destruction of the ozone layer.
WARNING
Cleaning of the air filter and other parts of the air filter involves dangerous work in high places, so be sure to have a
service person do it. Do not attempt it yourself.
The cleaning diagram for the air filter is there for the service person, and not for the customer.
1. SAFETY PRECAUTIONS ............................................................................................................. 3
2. SPECIFICATIONS ........................................................................................................................ 5
2-1. Combined Outdoor Unit .................................................................................................................................. 5
2-2. Indoor Unit ........................................................................................................................................................ 6
3. REFRIGERANT R410A ................................................................................................................ 8
3-1. Safety During Installation/Servicing .............................................................................................................. 8
3-2. Refrigerant Piping Installation ..................................................................................................................... 8
3-3. Tools ................................................................................................................................................................ 12
3-4. Recharging of Refrigerant ............................................................................................................................ 13
3-5. Brazing of Pipes ............................................................................................................................................. 14
4. CONSTRUCTION VIEWS ........................................................................................................... 16
4-1. Indoor Unit ...................................................................................................................................................... 16
5. REFRIGERATING CYCLE DIAGRAM ....................................................................................... 17
5-1. Indoor Unit ...................................................................................................................................................... 17
6. WIRING DIAGRAM .................................................................................................................... 18
6-1. Indoor Unit ...................................................................................................................................................... 18
7. SPECIFICATIONS OF ELECTRICAL PARTS ........................................................................... 19
7-1. Indoor Unit ...................................................................................................................................................... 19
8. CONTROL BLOCK DIAGRAM .................................................................................................. 20
8-1. Indoor Control Circuit ................................................................................................................................... 20
9. OPERATION DESCRIPTION ..................................................................................................... 21
9-1. Outline of Air Conditioner Control ............................................................................................................... 21
9-2. Operation Description ................................................................................................................................... 22
9-3. Intermittent Operation Control for Indoor Fans of the Indoor Unit
at Thermo-off Side in Heating Operation .................................................................................................... 37
9-4. Remote Controller ......................................................................................................................................... 38
10. INSTALLATION MANUAL .......................................................................................................... 40
Accessory parts and Parts to be procured locally .................................................................................... 40
1
PRECAUTIONS FOR SAFETY ....................................................................................................................... 41
2
SELECTION OF INSTALLATION PLACE ...................................................................................................... 43
3
INSTALLATION OF INDOOR UNIT ................................................................................................................ 45
4
DRAIN PIPING WORK .................................................................................................................................... 49
5
REFRIGERANT PIPING AND EVACUATING ................................................................................................. 52
6
EVACUATING .................................................................................................................................................. 53
7
ELECTRICAL WORK ...................................................................................................................................... 54
8
APPLICABLE CONTROLS ............................................................................................................................. 57
9
TEST OPERATION .......................................................................................................................................... 59
10
INSTALLATION / SERVICING TOOLS ........................................................................................................... 59
11
MAINTENANCE .............................................................................................................................................. 60
11. HOW TO DIAGNOSE THE TROUBLE ........................................................................................ 61
11-1. First Confirmation ............................................................................................................................................ 61
11-2. Primary Judgment ......................................................................................................................................... 62
11-3. Judgment by Flashing LED of Indoor Unit (Switch Panel) ....................................................................... 62
11-4. Self-Diagnosis by Remote Controller (Check Code) ................................................................................. 63
11-5. Judgment of Trouble by Every Symptom .................................................................................................... 66
11-6. How to Check Simply the Main Parts .......................................................................................................... 70
11-7. P.C. Board Layout ........................................................................................................................................... 71
11-8. Service P.C. Board Selection Information ................................................................................................... 72
12. DETACHMENTS ......................................................................................................................... 73
12-1. Indoor Unit ...................................................................................................................................................... 73
13. EXPLODED VIEWS AND PARTS LIST ..................................................................................... 81
13-1. Ceiling Panel .................................................................................................................................................. 81
14-2. 4-way Air Discharge Cassette Type ............................................................................................................. 82
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