Hitachi YUTAKI M Bedienungsanleitung Seite 6

4.3.2 Pump performance curves ....................................................................13
5. 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 Additional hydraulic necessary elements for space heating ................17
5.4.2 Additional hydraulic necessary elements for DHW ..............................18
5.4.3 Additional 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
6. Electrical and control settings
6.1 General check ..................................................................................................33
6.2 Electrical connection .......................................................................................34
6.2.1 Wiring size .............................................................................................34
6.2.2 Minimum requirements of the protection devices ..............................34
PMEN0647 rev.0 - 11/2023
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