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Contents
0
Overall View ............................................................................................................. 3
1
Contents ................................................................................................................... 4
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 .......................................................................... 12
5.1.5
Drain Valve ................................................................................................. 12
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 ............................................................................... 13
5.5
Buffer Flow to HP Connection ............................................................................... 13
5.6
Coil Return Connections ...................................................................................... 14
5.7
Coil Flow Connections ......................................................................................... 14
5.8.1
Temperature Sensor Connection .................................................................... 16
5.9
Water Module Wiring ........................................................................................... 19
5.9.1
Primary Electrical Connections ....................................................................... 19
5.9.2
Modbus Connection ...................................................................................... 20
5.9.3
Zone Connections ........................................................................................ 20
5.9.4
Digital Inputs & Temperature Sensors ............................................................ 21
5.10
Bivalent System ................................................................................................. 23
5.11
Connection of Secondary Return ........................................................................... 23
6
Commissioning ....................................................................................................... 24
