Contents
1. Precautions.................................................................................................................3
1-1 Precautions for the Service ..................................................................................................................................................3
1-2 Precautions related to static electricity and PL ..........................................................................................................3
1-3 Precautions for the Safety ....................................................................................................................................................4
1-4 Precautions for handling a system containing refrigerants .................................................................................5
1-5 Precautions for the brazing .................................................................................................................................................5
1-6 Precautions for charging refrigerants .............................................................................................................................5
2. General Overview ......................................................................................................6
2-1 Features of the System ..........................................................................................................................................................6
2-1-1 Key features of the EHS(TDM PLUS) ......................................................................................................................7
2-1-2 Changes in comparison to basic model ..............................................................................................................8
2-1-3 Structure of product ..................................................................................................................................................10
2-2 Model names of Indoor/Outdoor Unit .......................................................................................................................11
2-2-1 Indoor Unitt ...................................................................................................................................................................11
2-3 Combination and Connection Ratio limitation ......................................................................................................12
2-4 Components and Feature .................................................................................................................................................13
2-5 Product Specifications ........................................................................................................................................................14
2-5-1 Outdoor Unit .................................................................................................................................................................14
2-5-2 Hydro Unit ......................................................................................................................................................................16
2-5-3 TANK INTEGRATED HYDRO UNIT .........................................................................................................................17
2-5-4 Option code of Hydro Unit .....................................................................................................................................18
2-6 Accessory and Option Specifications ........................................................................................................... 19
2-6-1 Controller ........................................................................................................................................................ 19
2-6-2 Piping ............................................................................................................................................................... 20
2-6-3 Indoor .............................................................................................................................................................. 21
3. Disassembly and Reassembly .................................................................................
22
3-1 Necessary Tools.....................................................................................................................................................................22
3-2 Disassembly and Reassembly ......................................................................................................................... 23
3-2-1 Hydro Unit ......................................................................................................................................................................24
3-2-2 Outdoor Unit .................................................................................................................................................................32
3-2-3 TDM PLUS Tank Integrated Hydro Unit .............................................................................................................63
4. Troubleshooting ..................................................................................................... 62
4-1 Error Display ............................................................................................................................................................................62
4-2 Service Operation .................................................................................................................................................................63
4-2-1 Special Operation .......................................................................................................................................................63
4-2-2 TDM PLUS EEPROM Code Tabel ...........................................................................................................................65
4-2-3 Wired remote controller error code ....................................................................................................................66
4-3 Troubleshooting by symptoms ......................................................................................................................................68
4-3-1 Communication error after finishing Tracking ..............................................................................................68
4-4 Hydro Unit ...............................................................................................................................................................................69
4-4-1 EEPROM error .............................................................................................................................................................69
4-4-2
: Error due to abnormal data of Wired remote controller thermistor value ............70
