REMKO ETS300 - Manual (Page 12)

12
REMKO
ETS 300
The operation of the tank takes
place through the hot water valve
of the service water fixture (mixing tap).
Therefore, the tank is under continuous
line pressure. In order to protect the
internal boiler against excessive pressure
when heating up, the accumulating
expansion water is discharged through
the safety valve.
The return flow valve prevents the return
flow of the hot water into the cold
water network during a pressure
drop in the line and thereby protects
the boiler from heating up without
water.
With the shut-off valve the tank can
be disconnected from the cold water
network and thus its pressure and can
be emptied through the drain valve
if necessary.
Circulation connect
Due to significant energy loss,
a circulation connection should
be avoided when possible. If a highly
branched service water network requires
a circulation line, this must be well
insulated and the circulation pump
controlled via a timer and thermostat.
The switching temperature
of the thermostat should be kept low
(45°C).
The circulation connection piece has
an external thread.
Flange installation port
Depending on the system design, flange
heating cartridges or fin-tube heat
exchangers can be attached at the boiler
flange
Ø
180 (clear diameter
Ø
117 mm,
hole circle
Ø
150 mm, 8xM12).
■ Install the flange heating cartridges
in such a way that the sensor of the
temperature regulator is positioned
at the top.
■ First tighten the nuts by hand.
■ Then tighten the nuts,
in the sequence specified below, to
a torque of 20 Nm to max. 25 Nm.
Fitting the flange installation port
Flange ring
Seal
Supporting disc
Flange plate