15
Water loop connection
Please pay attention to the below points when connecting the water loop pipe:
1.
Try
to
reduce
the
water
loop
resistance
2.
Make
sure
there
is
nothing
in
the
pipe
and
the
water
loop
is
smooth,
check
the
pipe
carefully
to
see
if
there
is
any
leak,
and
then
pack
the
pipe
with
the
insulation.
3.
Install
the
one
way
valve
and
safety
valve
in
the
water
circulation
system
according to
scretch on page 12. The specification of the one way safety value is 0.7Mpa. Make sure the
direction marked on the valve align with the water flow direction.
4.
The
nominal
pipe
wide
of
the
field-
installed
sanitary
installations
must
be
selected
on
the
basis
of
the
available
water
pressure
and
the
expected
pressure
drop
within
the
piping
system.
5.
The
water
pipes
may
be
of
the
flexible
type.
To
prevent
corrosion
damage,
make
sure
that
the
materials
used
in
the
piping
system
are
compatible.
6.
When
installing
the
pipe-work
on
the
customers’
site,
any
contamination
of
the
piping
system
must
be
avoided.
Water affusion and water emptying
Water Affusion:
If the unit is used for the first time or used again after emptying the tank, please make sure that the
tank is full of water before turning on the power.
-
Open the cold water inlet and hot water outlet.
-
Start the water affusion. When there is water normally flowing out from the hot water outlet, the
tank is full.
-
Turn off the hot water outlet valve and water affusion is finished.
ATTENTION: Operation without water in water tank may result in damage of auxiliary
e-heater!
Water emptying
:
If the unit needs cleaning, moving etc, the tank should be emptied.
-
Close the cold water inlet
-
Open the hot water outlet and open the manual valve of drainpipe
-
Start the water emptying.
-
After emptying, close the manual valve.
