Installation Guide
1 Technical Specification 4
1.1 Technical Specification 4
2 Water Supply 8
2.1 Cold water supply 8
2.2 Hot water supply 8
2.3 Secondary return 8
2.4 Discharge pipe 8
2.5 Boiler primaries 8
2.6 Auxiliary primaries 8
3 Installation & Servicing 9
3.1 Cold water manifold 9
3.2 Installation 9
4 Commissioning, Draining Down
& Safety 10
4.1 Filling cylinder up 10
4.2 Draining down 10
4.3 Safety cut-out 10
4.4 Cold water discharge from tundish 10
4.5 Hot water discharge from tundish 10
4.6 Expansion Vessel 10
5 Maintenance 11
5.1 Pressure reducing valve 11
5.2 Expansion relief cartridge 11
5.3 Expansion vessel 11
6 Electrical Installation 12
6.1 Immersion heaters 12
6.2a Indirect units upper coil 12
6.2b Position of electrical components 12
6.3 S plan wiring layout 13
6.4 S plan system schematic 13
6.5 Y plan wiring layout 14
6.6 Y plan system schematic 14
6.7 Solar thermal wiring layout 15
6.8 Solar thermal schematic 15
7 Fault Finding Guide 16
7.1 Intermittent water discharge 16
7.2 Constant water discharge 17
7.3 No flow from hot water taps 18
7.4 Cold water from hot water taps 19
7.5 Excessive hot water from taps 20
8 Alternative Discharge 21
8.1 Alternative discharge 21
8.2 Secondary Return 21
9 Spare Parts 22
9.1 Spare Parts 22
Contents
Technical Specification
Water Supply
Installation & Servicing
Commissioning, Draining Down
& Safety
Maintenance
Electrical Installation
Fault Finding Guide
Alternative DischargeSpare Parts
3
