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 Specications
........................................................................................................................................................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 nishing 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
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