REMKO LWM IM 300, Инструкция по эксплуатации и установке, Страница: 18 / 40

S 08
EWS
ZWP
3 4 5 8 9 6 1 7 2
A
B C
Fig. 8: Tank connection according to DIN 1988
1: Shut-off valve
2: Pressure reducer
3: Test device
4: Check valve
5: Connection point for measuring device
6: Shut-off valve
7: Safety valve with drainage line and funnel trap
8: Through-flow diaphragm expansion vessel (rec-
ommended if pressure fluctuations are antici-
pated on the domestic connection side)
9: Flow sensor for dynamic hygiene function
A: Storage tank
B: Hot water
C: Cold water
In order to ensure that the connection fitting func-
tions faultlessly, it may only be installed in frost-
protected rooms. The discharge of the safety valve
must be open and observable and the discharge
line from the drip catcher (expansion water funnel)
must be routed to the sewer so that neither frost
nor back-ups from dirt or the like can cause a mal-
function.
There may not be a shut-off valve or any other type
of flow restrictor installed between the safety valve
and the cold water feed of the tank.
The safety valve must be set to a triggering pres-
sure which is below the nominal pressure of the
storage tank. After the conclusive connection of
the tank, the cold water supply line must be rinsed
out.
After the water connection is made and bubble-
free filling of the tank takes place, the connected
fitting must be tested to ensure it is functioning.
When lifting or turning (venting) the safety valve
test knob, the water must be able to flow out prop-
erly without being hindered by the expansion tank
drain funnel.
In order to check the return flow valve the shut-off
valve is closed and no water may flow out of the
open testing valve. The testing of the safety valve
must take place in accordance with DIN 1988-8.
The operation of the tank takes place through the
hot water valve of the service water fixture (mixing
tap). Therefore, the storage tank is under contin-
uous line pressure. In order to protect the storage
tank from excessive pressure when heating up, the
accumulating expansion water is discharged
through the safety valve.
REMKO LWM series
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