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 Unit ............................................................................................................................................................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 Option code of Hydro Unit .............................................................................................................................17
2-6 Accessory and Option Specifications ..................................................................................................................18
2-6-1 Controller................................................................................................................................................................18
2-6-2 Piping .......................................................................................................................................................................19
2-6-3 Indoor ......................................................................................................................................................................20
3. Disassembly and Reassembly
.........................................................................................................................
21
3-1
Necessary
Tools
..............................................................................................................................................................21
3-2 Disassembly and Reassembly .................................................................................................................................22
3-2-1 Hydro unit ..............................................................................................................................................................23
3-2-2 Outdoor Unit .........................................................................................................................................................31
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
