25
EN
The plumbing and electrical work involved in installing an appliance and taking it
into use must always be assigned to a competent firm.
The installation procedure should ensure an adequate number of thermometers and
leave space for subsequent lagging when making pipe connections. The accumulator
flange joints, hatches and other connections must be lagged to minimise heat loss.
From manufacturer webpages you can find some installation tips.
6.1. Immersion heater installation
Use of packing cord (hemp) and
plumber’s putty is recommended for
installing an immersion heater, although
various rubber gaskets may also be used.
Use of a dedicated immersion heater
spanner is recommended. Procedure
using packing cord and plumber’s putty:
• Roughen the thread with a hacksaw or
pliers to stop the hemp twisting when you
tighten the connection. Spread the putty
on the external thread, filling the grooves
to an even surface.
• Straighten the packing cord by hand and
splay out the fibers.
• Wind the packing cord evenly and
firmly, starting from the end of the
immersion heater thread and winding in
the direction of the thread along its
entire
length. The packing cord will fill the
thread groove with the thread peaks
remaining visible.
• Spread a thin, even layer of plumber’s
putty on top of the thread. Make sure
that no cord reaches the head of the
immersion heater.
• Screw the immersion heater into
position, removing excess putty with
a rag or wire brush.
• Check the connection tightness
regularly. The immersion heater
connection includes a factory-fitted leak
protector that should always remain in
position. The leak protector will divert
any leaks to the outside of the tank
6.2. Installation of a flanged coil or blind flange in a hatch
We recommend using guide pins to
position the gasket and coil optimally
when installing a flanged coil. A correctly
compressed silicon rubber gasket
supplied by the manufacturer for use in
the hatch concerned provides an
adequate seal. This compression is
achieved by evenly tightening
each bolt slightly in turn to an
adequate tightening torque of 10 Nm.
Check that the gasket does not
protrude more than 5 mm from the
space between the flange and the
hatch. Tightness should be checked
regularly.