REMKO EWS300 - Manual (Page 11)

11
Tank connection according to DIN 1988
Consumers
Tank
Drain valve
Safety
valve
Backflow
preventer
Testing valve
If applicable:
Pressure reducing valve
Shut-off valve
In order to ensure the faultless function
of the connection fitting, it may only
be installed in frost-protected rooms.
The discharge of the safety valve must
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 fault.
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 pressure which is below
the nominal pressure of the tank.
After the conclusive connection of
the tank, the cold water supply line must
be rinsed out.
After the water connection is made and
the bubble-free filling of the tank takes
place, the connected fitting must be
tested for function.
When lifting or turning (venting)
the safety valve test knob, the water
must be able to flow out properly
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.