Viessmann VITOCAL Series - Page 4

■ Installation information ............................................................................................ 99
■ Outdoor unit minimum clearances .......................................................................... 100
■ Minimum clearances for heat pump cascade (max. 5 outdoor units) ..................... 101
■ Floorstanding installation with support, line entry above ground level .................... 102
■ Floorstanding installation with support, line entry below ground level .................... 103
■ Foundations ............................................................................................................ 103
■ Wall mounting ......................................................................................................... 105
7. 3 Siting the indoor unit ................................................................................................... 105
■ Installation room requirements ................................................................................ 105
■ Installation requirements ......................................................................................... 105
■ Minimum room height Vitocal 222-A ....................................................................... 106
■ Minimum clearances Vitocal 200-A ......................................................................... 106
■ Minimum clearances Vitocal 222-A ......................................................................... 107
■ Pressure points for Vitocal 222-A ........................................................................... 107
7. 4 Connection between the indoor and outdoor units ..................................................... 107
■ Cable entry through the wall ................................................................................... 107
■ Cable entry through the floor plate .......................................................................... 108
7. 5 Electrical connections ................................................................................................. 108
■ Electrical installation requirements ......................................................................... 108
7. 6 Noise generation ......................................................................................................... 111
■ Principles ................................................................................................................ 111
■ Sound pressure level at different distances to the appliance .................................. 113
■ Quieter operation: Sound power level in frequency spectrum ................................ 115
■ Increase of sound power level for heat pump cascades ......................................... 116
■ Information on reducing noise emissions ................................................................ 116
7. 7 Sizing the heat pump .................................................................................................. 117
■ Mono mode operation ............................................................................................. 117
■ Supplement for DHW heating in mono mode operation ......................................... 117
■ Supplement for setback mode ................................................................................ 118
■ Mono energetic operation ....................................................................................... 118
■ Dual mode operation ............................................................................................... 118
■ Determining the dual mode point ............................................................................ 118
7. 8 Hydraulic conditions for the secondary circuit ............................................................ 119
■ Minimum flow rate and minimum system volume ................................................... 119
■ Systems with a heating water buffer cylinder connected in parallel ........................ 119
■ Systems with heating water buffer cylinder connected in series ............................. 120
■ Systems without heating water buffer cylinder ........................................................ 120
7. 9 Planning aids for the secondary circuit ....................................................................... 120
■ Further hydraulic data ............................................................................................. 122
7.10 Water quality ............................................................................................................... 122
■ Heating water .......................................................................................................... 122
7.11 Connection on the DHW side ...................................................................................... 123
■ Vitocal 200-A ........................................................................................................... 123
■ Vitocal 222-A ........................................................................................................... 124
■ Safety valve ............................................................................................................. 124
■ Automatic thermostatic mixing valve ....................................................................... 124
7.12 DHW cylinder selection ............................................................................................... 124
■ System examples .................................................................................................... 125
7.13 Hydraulic connection of the cylinder loading system (for heat pump cascade with
Vitocal 200-A) ............................................................................................................. 125
■ Cylinder with external heat exchanger (cylinder loading system) and heating
lance ....................................................................................................................... 125
■ DHW cylinder with external heat exchanger and solar backup ............................... 126
■ DHW cylinder selection ........................................................................................... 127
7.14 Cooling mode .............................................................................................................. 127
7.15 Connecting a solar thermal system ............................................................................ 128
■ Sizing the solar expansion vessel ........................................................................... 129
7.16 Tightness test on the refrigerant circuit ....................................................................... 130
7.17 Intended use ............................................................................................................... 130
8. Heat pump control unit 8. 1 Vitotronic 200, type WO1C ......................................................................................... 130
■ Design and functions .............................................................................................. 130
■ Time switch ............................................................................................................. 132
■ Setting the operating programs ............................................................................... 132
■ Frost protection function ......................................................................................... 132
■ Heating and cooling curve settings (slope and level) .............................................. 133
■ Heating systems with heating water buffer cylinder ................................................ 133
■ Outside temperature sensor ................................................................................... 133
8. 2 Specification, Vitotronic 200, type WO1C ................................................................... 134
9. Control unit accessories 9. 1 Overview ..................................................................................................................... 135
Index
(cont.)
4
VIESMANN
VITOCAL
5831388