5
Fitting
Logalux LTN/LTD/LTH/LF 400...3000 – 6 720 818 806 (2015/12)
11
5.2
Hydraulic connection
So that later damage to the DHW cylinder is prevented:
▶ Use metal connectors in potable water heating systems with plastic
pipes.
▶ Use installation material that is temperature-resistant at
95 °C.
▶ Use only screw fittings, and with shut-off valves if required, for all
connection pipes to the cylinder.
▶ Install an air vent valve in the DHW line upstream of the shut-off valve.
▶ Install the drain provided by the customer to the bottom cylinder
connection.
▶ In order to facilitate blow-down, never install elbows in the drain
pipe.
▶ Fit all connection pipes in such a way that they are free of tension.
▶ Seal off all cylinder connections that are not used.
Fig. 6
Connection diagram for hydraulic connection
[1]
Storage cylinder
[2]
Air vent valve
[3]
Shut-off valve with drain valve
[4]
Pressure relief valve
[5]
Non-return valve
[6]
Shut-off valve
[7]
DHW circulation pump
[8]
Pressure reducer (if required)
[9]
Test valve
[10] Non-return component
[11] Pressure gauge connector
[12] Drain
▶ If there is an arrangement of several DHW heaters, make the
connections for both domestic hot water and heating water in
parallel in accordance with the Tichelmann system (
DANGER:
Risk of fire from soldering and welding!
▶ As far as possible, carry out any soldering and welding
work before fitting the thermal insulation.
▶ Take appropriate safety measures when soldering and
welding, since the thermal insulation is combustible;
for example, cover the thermal insulation.
▶ Check the integrity of the thermal insulation after
completing work.
DANGER:
Risk to health through contaminated water!
Fitting work carried out without due care for cleanliness
can result in contamination of the potable water.
▶ Install and equip the DHW cylinder hygienically and in
accordance with national standards and guidelines.
▶ Flush the DHW cylinder and pipework thoroughly with
potable water after fitting.
To ensure that the cylinder can be drained quickly, use
the same connection diameter for the tee on the cold
water inlet and drain connector (EK/EL).
Summary of Contents for Logalux LTD950
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