Danfoss DTW 300 SP

Contents
1 About this document and decals ............................................... 3
1.1 Introduction .................................................................................... 3
1.2 Symbols in documents ................................................................ 3
1.3 Symbols on decals ........................................................................ 3
2 Important information ................................................................... 4
2.1 General safety precautions ........................................................ 4
2.2 Refrigerant safety precautions ................................................. 5
2.3 Electrical connection safety precautions .............................. 5
2.4 Safety precautions for home-owners ..................................... 6
3 Components ...................................................................................... 7
4 Accessories ......................................................................................... 9
5 Installation Location ..................................................................... 10
5.1 Installation space ........................................................................ 10
5.2 Carrying the unit onto the site ............................................... 11
6 Piping Connection ........................................................................ 12
6.1 Water inlet and outlet pipes ................................................... 12
6.2 Temperature and pressure valve .......................................... 13
6.3 Non-return valve ......................................................................... 13
6.4 Tank affusion ................................................................................ 13
6.5 Water pressure and drainage ................................................. 13
6.6 Solar energy coil electrical instruction ................................ 13
7 Duct Connections .......................................................................... 15
8 Electrical Connection ................................................................... 18
8.1 Electrical wiring illustration ..................................................... 18
8.2 Connecting external supply voltage .................................... 18
9 Commisioning ................................................................................ 19
10 Control system ............................................................................... 20
10.1 Control panel explanation ....................................................... 20
10.2 Display explanation ................................................................... 20
10.3 Key pad ........................................................................................... 21
11 Operating instructions ................................................................ 22
11.1 Start up ........................................................................................... 22
11.2 Operational status ...................................................................... 27
11.3 Troubleshooting .......................................................................... 28
11.4 Operating Capability ................................................................. 29
11.5 Legionella prevention ............................................................... 32
12 Maintenance ................................................................................... 33
12.1 Maintenance tasks for service technicians ........................ 33
12.2 Maintenance tasks for both home-owners and
service technicians ..................................................................... 34
12.3 Special Non-error Conditions ................................................. 34
12.4 Malfunctions and Resolutions ................................................ 35
12.5 After-Sale Service ........................................................................ 35
13 Disposal Instructions .................................................................... 36
14 Technical data ................................................................................. 37
VMGFK202 – 1