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INSTALLATION
Specication
16.5 Hydraulic diagram
> 300
3 2 1
9
10
4
15
13
568
1214 1111
181716
7
26�02�07�0133
1 Discharge below fixed grate
2 Cold water supply
3 Shut-off valve
4 Line strainer
5 Pressure reducing valve
6 Balanced pressure; cold water outlet
7 Non-return valve
8 Safety assembly
9 Tundish
10 Metal discharge pipe (D2) from tundish, with continuous fall
11 Equipotential bond
12 Drain valve
13 Cylinder
14 DHW outlet
15 T&P valve
16 Metal discharge pipe (D1) from T&P valve to tundish
17 Expansion vessel
18 Expansion valve
Minimum size of discharge pipe D1 mm 15
Minimum size of discharge pipe D2 from tundish mm 22 28 35
Maximum permissible pressure drop, expressed as
a length of straight pipe (i.e. no elbows or bends)
m 9 18 27
Pressure drop of each elbow or bend m 1.0 1.4 1.7
Connection dimensions
Safety assembly connection mm 22
Expansion valve end connection mm 15
Expansion vessel connection, male, BSP G ¾ A
Tundish inlet connection mm 22
Tundish outlet connection mm 28
16.6 Heat-up diagrams
The heat-up time depends on the cylinder capacity, cold water
inlet temperature and heating output.
Diagrams refer to 15 °C cold water inlet temperature:
Temperature setting 50°C
10080 15030
2
4
6
1
3
4
8
50 120
2
84�02�02�0051
Temperature setting 70°C
2
4
6
8
84�02�02�0052
X Nominal capacity in l
Y Duration in h
1 1kW
2 2kW
3 3kW
4 4kW
16.7 Fault conditions
In the event of a fault, temperatures of up to 85°C at 0.6MPa
can occur.