Panasonic Aquarea WH-SDC16H6E5 - Page 5

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Aquarea air-to-water heat pumps - Planning and installation manual - 02/2022
Contents
4.8 Accessories .............................................................................................................................. 72
4.8.1 Domestic hot water tanks................................................................................................. 72
4.8.1.1 Stainless steel domestic hot water tanks ........................................................................................... 73
4.8.1.2 Enamelled domestic hot water tanks ................................................................................................. 75
4.8.2 Bu󰀨erTanks ..................................................................................................................... 81
4.8.3 Combo Tanks ................................................................................................................... 84
4.8.4 Residential ventilation unit with heat recovery ................................................................. 87
4.8.5 Recommended on-site accessories ................................................................................. 90
5 Planning .................................................................................................................... 91
5.1 Refrigeration technology and performance criteria ............................................................. 92
5.1.1 Determination of design outside temperature and design heat load ............................... 92
5.1.2 Determination of the domestic hot water demand ........................................................... 93
5.1.3 Determination of the heating surface temperature .......................................................... 94
5.1.4 Operating mode and determination of the bivalence point .............................................. 94
5.1.5 Determination of the pipe length correction factor for bi-bloc systems ............................ 95
5.1.6 Example: Calculation of the total heating capacity required ............................................ 95
5.1.7 Cooling ............................................................................................................................. 96
5.1.7.1 Coolingwithunderoorheating ......................................................................................................... 97
5.1.7.2 Cooling with fan coils ......................................................................................................................... 97
5.2 Installation criteria ................................................................................................................... 97
5.2.1 Acoustics.......................................................................................................................... 97
5.2.1.1 Sound pressure level ......................................................................................................................... 97
5.2.1.2 Sound power level for approximate calculation of the sound pressure level ..................................... 98
5.2.2 Installation of a bi-bloc system ......................................................................................... 100
5.2.2.1 Installation conditions for outdoor units ............................................................................................. 101
5.2.2.2 Minimum distances for outdoor units ................................................................................................. 101
5.2.2.3 Securing the outdoor unit .................................................................................................................. 102
5.2.2.4 Requirements of the room for installation of the indoor unit .............................................................. 103
5.2.2.5 Installation conditions for indoor units (hydrokit or All in One unit) .................................................... 107
5.2.2.6 Minimum distances for indoor units (hydrokit or All in One unit) ........................................................ 107
5.2.3 Installation of a mono-bloc system................................................................................... 109
5.2.3.1 installation conditions for mono-bloc units ......................................................................................... 110
5.2.3.2 Minimum distances for mono-bloc units ............................................................................................ 110
5.2.3.3 Securing the mono-bloc unit .............................................................................................................. 111
5.3 Hydraulics ................................................................................................................................. 112
5.3.1 Hydraulic integration ........................................................................................................ 112
5.3.2 Pump discharge head ...................................................................................................... 112
5.3.3 Hydraulic balancing.......................................................................................................... 113
5.3.4 Special points related to cooling ...................................................................................... 113
5.3.5 Expansion vessel ............................................................................................................. 113
5.3.6 Heating water quality ....................................................................................................... 115
5.3.7 Useofbu󰀨ertanks ........................................................................................................... 115
5.4 Electricals ................................................................................................................................. 116
5.4.1 Electrical connection to a power source .......................................................................... 116
5.4.2 Electricity meters and rates.............................................................................................. 128
5.5 Heating and cooling capacity depending on supply water temperature and
outside temperature................................................................................................................. 128