Hitachi YUTAKI M Bedienungsanleitung Seite 22

Drain and water piping
5.1 Water Drain Discharge Connection (Accessory) .............................................15
5.1.1 Connecting procedure ...........................................................................15
5.2 Outdoor Unit Draining Operation ...................................................................16
5.3 Hydraulic Connections for YUTAKI M ..............................................................16
5.4 Space heating and DHW for YUTAKI M ..........................................................17
5.4.1 A dditional hydraulic necessary elements for space heating ................17
5.4.2 A dditional hydraulic necessary elements for DHW ..............................18
5.4.3 A dditional hydraulic optional elements (For DHW) ..............................20
5.4.4 Requirements and recommendations for the hydraulic circuit ............21
5.4.5 Anti-freezing protection for water circuit .............................................22
5.4.6 Glycol as anti-freezing protection .........................................................22
5.4.7 Insulation ...............................................................................................24
5.4.8 Water filling ...........................................................................................24
5.4.9 Water quality .........................................................................................26
5.5 Minimum water volume description ...............................................................27
5.6 Water piping ....................................................................................................29
5.6.1 Water piping length ...............................................................................29
5.6.2 Water piping size ...................................................................................29
5.7 Suspension of water piping .............................................................................30
PMEN0647 rev.0 - 11/2023
5
14