Daikin EWYT032CZI-A1 Bruksanvisning

Daikin Luftkonditionering EWYT032CZI-A1

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Sida 1/66

D-EIMHP01505-22_05EN 1/66

REV

Date

12/2024

Supersedes

D-EIMHP01505-22_04EN

Air to water heat pump units with scroll compressors – split

version

EWYT~CZ(I/O)

Original Instructions

Installation and Maintenance Manual

D-EIMHP01505-22_05EN

Public

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 