Table Of Contents - Mitsubishi Electric PURY-80TMU Service Handbook

Contents
1
PRECAUTIONS FOR DEVICES ..............................................................
[1] Storage of Piping Material ................................................................. 3
[2] Brazing .............................................................................................. 4
[3] Airtightness Test ................................................................................ 5
[4] Vacuuming ........................................................................................ 5
2
COMPONENT OF EQUIPMENT .............................................................
[1] Appearance of Components ............................................................. 6
[2] Refrigerant Circuit Diagram and Thermal Sensor ........................... 13
[3] Electrical Wiring Diagram ................................................................ 14
[4] Standard Operation Data ................................................................ 18
[5] Function of Dip SW and Rotary SW ................................................ 20
3
TEST RUN .............................................................................................
[1] Before Test Run .............................................................................. 23
[2] Test Run Method ............................................................................. 27
4
GROUPING REGISTRATION OF INDOOR UNITS WITH REMOTE
CONTROLLER .......................................................................................
5
CONTROL ..............................................................................................
[1] Control of Outdoor Unit ................................................................... 34
[2] Control of BC Controller .................................................................. 37
[3] Operation Flow Chart ...................................................................... 38
[4] List of Major Component Functions ................................................ 44
[5] Resistance of Temperature Sensor ................................................. 47
6
REFRIGERANT AMOUNT ADJUSTMENT ............................................
[1] Refrigerant Amount and Operating Characteristics ........................ 48
[2] Adjustment and Judgement of Refrigerant Amount ........................ 48
7
TROUBLESHOOTING ...........................................................................
[1] Principal Parts ................................................................................. 54
[2] BC Controller Disassembly Procedure ........................................... 80
[3] Self-diagnosis and Countermeasures Depending on the Check
Code Displayed ............................................................................... 86
[4] LED Monitor Display ..................................................................... 108
8
PREPARATION, REPAIRS AND REFRIGERANT REFILLING WHEN
REPAIRING LEAKS .............................................................................
[1] Location of leaks: Extension piping or indoor units (when cooling) 118
[2] Location of leaks: Outdoor unit (Cooling mode) ............................. 118
[3] Location of leaks: Extension piping or indoor units (Heating mode) 119
[4] Location of leaks: Outdoor unit (when heating) ............................. 119
118
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