D-EIMHP01505-22_05EN 2/66
Contents
1. INTRODUCTION ........................................................................................................................................................... 5
Precautions against residual risks ......................................................................................................................... 5
General description ............................................................................................................................................... 6
Information about the refrigerant ........................................................................................................................... 7
1.3.1. Safety Devices General Description .......................................................................................................... 7
Installation Site Requirements for the Indoor Unit ................................................................................................. 8
1.4.1. Installation room area requirements........................................................................................................... 8
1.4.2. Countermeasures .................................................................................................................................... 13
2. RECEIPT OF THE UNIT.............................................................................................................................................. 14
3. Operating limits ......................................................................................................................................................... 15
Storage ............................................................................................................................................................... 15
Operation limits ................................................................................................................................................... 15
4. MECHANICAL INSTALLATION ................................................................................................................................. 17
Safety .................................................................................................................................................................. 17
Handling and lifting .............................................................................................................................................. 17
4.2.1. Lifting the Outdoor MONO unit ................................................................................................................ 17
4.2.2. Lifting the Outdoor DUAL unit .................................................................................................................. 18
4.2.3. Lifting the INDOOR unit ........................................................................................................................... 18
Outdoor Unit Positioning and assembly .............................................................................................................. 18
4.3.1. Outdoor Unit Minimum space requirements ............................................................................................. 21
Indoor Unit Positioning and assembly ................................................................................................................. 23
Additional installation site requirements .............................................................................................................. 24
Combining Units and Options.............................................................................................................................. 25
Preparing Refrigerant Piping ............................................................................................................................... 25
Noise and sound protection................................................................................................................................. 26
Water circuit for connection with the unit ............................................................................................................. 27
4.9.1. Water piping ............................................................................................................................................. 27
4.9.2. Flow switch .............................................................................................................................................. 28
4.9.3. Repairing and checking the water circuit connection ............................................................................... 28
4.9.4. Water pressure ........................................................................................................................................ 28
Water treatment .................................................................................................................................................. 28
Water pressure drops for filters ........................................................................................................................... 29
Indoor Unit Pump ................................................................................................................................................ 29
Operating stability and minimum water content in the system............................................................................. 30
4.13.1. Cooling Mode ........................................................................................................................................... 30
4.13.2. Heating Mode .......................................................................................................................................... 31
Water flow limits .................................................................................................................................................. 32
Calibrating the expansion vessel ......................................................................................................................... 32
5. ELECTRICAL INSTALLATION ................................................................................................................................... 34
General specifications ......................................................................................................................................... 34
Indoor/outdoor connection .................................................................................................................................. 34
Electric connections ............................................................................................................................................ 34
Cable requirements ............................................................................................................................................. 34
5.4.1. Maximum cable dimension ...................................................................................................................... 35
5.4.2. Safety device requirements ..................................................................................................................... 35
Phase unbalance ................................................................................................................................................ 35
Master Wiring Diagram ....................................................................................................................................... 36
