Technical data

Contents
A Class HP Installation and User Instructions R02583-2 09/13 Page 5
1 Contents
0 Overall View ............................................................................................................. 3
1 Contents ................................................................................................................... 5
2 Introduction ............................................................................................................. 7
3 Scope of delivery ...................................................................................................... 7
4 Pre-Installation advice ............................................................................................. 8
4.1 Risk assessment ...................................................................................................8
4.2 Siting considerations .............................................................................................8
4.3 Cold water supply .................................................................................................9
4.4 Building regulation G3 discharge requirements .........................................................9
4.4.1 Discharge pipe D2 ..........................................................................................9
4.4.2 Worked example .......................................................................................... 11
4.4.3 Termination of discharge pipe ....................................................................... 11
4.5 Limitations ........................................................................................................ 11
5 Installation ............................................................................................................ 12
5.1 Cold Water Inlet with Inlet Control Group .............................................................. 12
5.1.1 Correctly site the cylinder ............................................................................. 12
5.1.2 Install the inlet group ................................................................................... 12
5.1.3 Expansion vessel ......................................................................................... 12
5.1.4 Balanced cold water supply ........................................................................... 13
5.1.5 Drain valve ................................................................................................. 13
5.2 Hot Water Outlet ................................................................................................ 13
5.2.1 Thermostatic mixing valve ............................................................................ 13
5.2.2 Pipe insulation ............................................................................................. 13
5.3 Discharge pipes from safety devices ..................................................................... 13
5.3.1 Discharge pipe D1 ........................................................................................ 13
5.3.2 Discharge pipe D2 ........................................................................................ 13
5.3.3 Tundish ...................................................................................................... 13
5.4 HP flow to buffer connection ................................................................................ 14
5.5 Buffer flow to HP connection ................................................................................ 14
5.6 Coil return connections ........................................................................................ 14
5.7 Coil flow connections .......................................................................................... 14
5.8 Water Module Wiring ........................................................................................... 16
5.8.1 Primary Electrical Connections ....................................................................... 16
5.8.2 Modbus Connection ...................................................................................... 17
5.8.3 Zone Connections ........................................................................................ 17
5.8.4 Digital Inputs & Temperature Sensors ............................................................ 18
5.8.5 Solar High Limit Stat Wiring .......................................................................... 19
5.9 Bivalent System ................................................................................................. 20
6 Commissioning ....................................................................................................... 20
7 Maintenance ........................................................................................................... 21
8 Spare Parts ............................................................................................................ 22