Dimplex ECS250HP40A-580 User Manual

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Contents

A Class HP Installation a

nd User Instructions R02583

-6 09/15

Page

1 Contents

0 Overall View ............................................................................................................. 3

1 Contents ................................................................................................................... 5

2 Introduction ............................................................................................................. 8

3 Scope of Delivery ..................................................................................................... 8

4 Pre-Installation Advice ............................................................................................. 9

4.1 Risk Assessment ..................................................................................................9

4.2 Siting Considerations ............................................................................................9

4.3 Cold Water Supply .............................................................................................. 10

4.4 Building Regulation G3 Discharge Requirements ..................................................... 10

4.4.1 Discharge Pipe D2 ........................................................................................ 10

4.4.2 Worked Example .......................................................................................... 12

4.4.3 Termination of Discharge Pipe ....................................................................... 12

4.5 Limitations ........................................................................................................ 12

5 Installation ............................................................................................................ 13

5.1 Cold Water Inlet with Inlet Control Group .............................................................. 13

5.1.1 Correctly Site the Cylinder ............................................................................ 13

5.1.2 Install the Inlet Group .................................................................................. 13

5.1.3 Expansion Vessel ......................................................................................... 13

5.1.4 Balanced Cold Water Supply .......................................................................... 13

5.1.5 Drain Valve ................................................................................................. 13

5.2 Hot Water Outlet ................................................................................................ 14

5.2.1 Thermostatic Mixing Valve ............................................................................ 14

5.2.2 Pipe Insulation ............................................................................................ 14

5.3 Discharge Pipes from Safety Devices ..................................................................... 14

5.3.1 Discharge Pipe D1 ........................................................................................ 14

5.3.2 Discharge Pipe D2 ........................................................................................ 14

5.3.3 Tundish ...................................................................................................... 14

5.4 HP Flow to Buffer Connection ............................................................................... 14

5.5 Buffer Flow to HP Connection ............................................................................... 14

5.6 Coil Return Connections ...................................................................................... 15

5.7 Coil Flow Connections ......................................................................................... 15

5.8.1 Solar Sensor Connection ............................................................................... 17

5.9 Water Module Wiring ........................................................................................... 20

5.9.1 Primary Electrical Connections ....................................................................... 20

5.9.2 Modbus Connection ...................................................................................... 21

5.9.3 Zone Connections ........................................................................................ 21

5.9.4 Digital Inputs & Temperature Sensors ............................................................ 22

5.9.5 Solar High Limit Stat Wiring .......................................................................... 23

5.10 Bivalent System ................................................................................................. 24

5.11 Connection of Secondary Return ........................................................................... 24

6 Commissioning ....................................................................................................... 25

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Dimplex ECS250HP40A-580 250L A-Class Heat Pump Cylinder With Buffer

User Manual - Page 5