Assembly | 6
M2250322_en | Installation instructions Wood chip boiler T4e 200-350
43
6.4 Hydraulic connection
2
2
1.1
1.2
1.3
1.5
1.4
1.7
1.6
1.1
1.2
1.3
1.5
1.4
1.7
1.6
T4e 200-250:
T4e 300-350:
6
7.2
8.2
9
10
P
8.1
P
T
T
P
7.1
T
7.1
1
Thermal discharge valve
▪ The thermal discharge safety device must be connected in accordance with ÖNORM/
DIN EN 303-5 and as shown in the diagram above
▪ The discharge safety sensor must be connected to a pressurised cold water mains
supply (temperature ≤ 15°C) in such a way that it cannot be shut off
▪ A pressure reducing valve (1.5) is required for a cold water pressure of ≥ 6 bar
Minimum cold water pressure = 2 bar
1.1 Sensor of thermal discharge safety device
1.2 Thermal discharge valve (opens at approx. 95°C)
1.3 Cleaning valve (T-piece)
1.4 Dirt trap
1.5 Pressure reducing valve
1.6 Backflow preventer to prevent stagnation water from entering the drinking water
network
1.7 Free outlet without counter pressure with observable flow path (e.g. discharge funnel)
2
Safety valve
▪ Requirements for safety valves as specified by DIN EN ISO 4126-1
