Flex
Connected
Living
Smart
Button
FCL2020
User
Manual
This
product
will
connect
over
Zigbee
to
gateway
(Hotspring)
and
initiate
commands
to
tell
the
water
heater
to
turn
on
its
recirculation
pump.
The
recirculation
pump
pushes
hot
water
through
the
pipes,
and
returns
the
cold
water
in
the
pipes
back
into
the
system.
This
way,
there
is
hot
water
instantly
throughout
the
house
without
wasting
any
(cold)
water
waiting
for
the
shower
to
heat
up.
You
need
install
two
coin
batteries
firstly
when
you
prepare
to
use.
These
two
batteries
have
the
polarity.
In
PCBA,
you
can
see
the
battery
holder
has
“+”
mark
on
it.
So
you
need
note
coin
battery
“+”
matched
with
it.
Otherwise,
it
will
not
work
for
wrong
installation
with
opposite
polarity.
Then
you
can
push
button
to
connect
to
the
network
when
you
have
zigbee
gateway
nearby.
When
you
join
a
gateway
network,
the
product
will
flash
the
LED
3
times
quickly.
Then
they
complete
a
network
communication.
Then
the
product
works.
When
you
find
the
LED
is
not
lightened,
you
need
change
the
coin
battery
to
new
one
and
use
again.
