II
PMEN0645 rev.0 - 04/2023
II
GENERAL INDEX
4.2.3 Swimming pool heang .........................................................................17
4.2.4 Space cooling (Necessary cooling kit) ...................................................17
4.3 R32 Hydraulic working range ..........................................................................18
4.3.1 Hydraulic data ........................................................................................18
4.3.2 Pump performance curves ....................................................................18
5. Refrigerant piping .....................................................................................................19
5.1 General notes before performing piping work ...............................................20
5.2 R32 Refrigerant circuit ..................................................................................... 20
5.2.1 General notes R32 refrigerant ............................................................... 20
5.2.2 Refrigerant piping ..................................................................................21
5.2.3 Refrigerant charge .................................................................................23
5.2.3.1 Refrigerant charge amount ......................................................23
5.2.3.2 Refrigerant charge before shipment (W
0
(kg)) .........................23
5.3 Water piping ....................................................................................................23
5.3.1 Water piping size ...................................................................................23
5.3.2 Water quality for primary (space heang / cooling) and secondary
(DHW) circuit..........................................................................................24
5.3.2.1 Water lling ..............................................................................25
5.3.3 Requirements and recommendaons for the hydraulic circuit ............28
5.3.4 Water ow control .................................................................................29
5.4 Space heang and DHW ..................................................................................29
5.4.4.1 Addional hydraulic necessary elements for space heang ...29
5.4.4.2 Addional hydraulic necessary elements for DHW .................30
5.4.4.3 Addional hydraulic oponal elements (For DHW) .................31
5.4.4.4 Addional hydraulic necessary elements for DHW
(only for UK market) .................................................................32
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